Merge pull request #2210 from cesanta/devdash

run pack on Win
2026-10-26 12:14:56 +00:00 · 2023-05-23 11:06:47 -03:00 · 2023-05-23 11:02:24 -03:00 · 2023-05-23 08:43:57 +01:00 · 2023-05-23 03:50:53 +01:00 · 2023-05-23 03:49:24 +01:00
1697 changed files with 692097 additions and 14527 deletions
@@ -0,0 +1,13 @@
+- My goal is: _describe_
+- My actions were: _describe_
+- My expectation was: _describe_
+- The result I saw: _provide logs or description_
+- My question is: _your question_
+
+# Environment
+
+- mongoose version: _X.Y_
+- Compiler/IDE and SDK: ZZZ version _X.Y_
+- Target hardware/board: _?_
+- Connectivity chip/module: _?_
+- Target RTOS/OS (if applicable): _?_
@@ -0,0 +1,35 @@
+name: CIFuzz
+on:
+  pull_request:
+    paths:
+      - "mongoose.c"
+      - "mongoose.h"
+jobs:
+  Fuzzing:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v3
+      with: { fetch-depth: 2 }
+    - run: if ./test/match_changed_files.sh '^src/' ; then echo GO=1 >> $GITHUB_ENV ; fi
+    - name: Build Fuzzers
+      id: build
+      if: ${{ env.GO == 1 }}
+      uses: google/oss-fuzz/infra/cifuzz/actions/build_fuzzers@master
+      with:
+        oss-fuzz-project-name: 'mongoose'
+        dry-run: false
+        language: c++
+    - name: Run Fuzzers
+      if: ${{ env.GO == 1 }}
+      uses: google/oss-fuzz/infra/cifuzz/actions/run_fuzzers@master
+      with:
+        oss-fuzz-project-name: 'mongoose'
+        fuzz-seconds: 600
+        dry-run: false
+        language: c++
+    - name: Upload Crash
+      uses: actions/upload-artifact@v1
+      if: env.GO == 1 && failure() && steps.build.outcome == 'success'
+      with:
+        name: artifacts
+        path: ./out/artifacts
@@ -1,40 +1,281 @@
 name: build
-on: [push, pull_request]
+on:
+  push:
+    paths:
+      - "**Makefile"
+      - "**.c"
+      - "**.h"
+env:
+  IPV6: 0
 jobs:
  linux:
    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        cc: [gcc, clang, g++, clang++]
+        target: [test, mip_test]
+        ssl: [MBEDTLS, OPENSSL]
+    name: linux ${{ matrix.target }} CC=${{ matrix.cc }} SSL=${{ matrix.ssl }}
+    env:
+      CC: ${{ matrix.cc }}
+      SSL: ${{ matrix.ssl }}
    steps:
-    - uses: actions/checkout@v2
-    - name: Install packages
-      run: sudo apt-get install libmbedtls-dev
-    - name: make
-      run: make test test++ IPV6=0
-    - name: openssl
-      run: make test SSL=OPENSSL IPV6=0
-    - name: examples
-      run: make ex
+    - uses: actions/checkout@v3
+      with: { fetch-depth: 2 }
+    - run: if ./test/match_changed_files.sh '^test|^src/.*.[ch]' ; then echo GO=1 >> $GITHUB_ENV ; fi
+    - if: ${{ env.GO == 1 }}
+      run: ./test/setup_ga_network.sh && sudo apt -y update ; sudo apt -y install libmbedtls-dev && make ${{ matrix.target }}
+  s390:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v3
+      with: { fetch-depth: 2 }
+    - run: if ./test/match_changed_files.sh '^test|^src/.*.[ch]' ; then echo GO=1 >> $GITHUB_ENV ; fi
+    - if: ${{ env.GO == 1 }}
+      run: sudo apt -y update ; sudo apt -y install qemu binfmt-support qemu-user-static && docker run --rm --privileged multiarch/qemu-user-static --reset -p yes && make s390
+  armhf:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v3
+      with: { fetch-depth: 2 }
+    - run: if ./test/match_changed_files.sh '^test|^src/.*.[ch]' ; then echo GO=1 >> $GITHUB_ENV ; fi
+    - if: ${{ env.GO == 1 }}
+      run: sudo apt -y update ; sudo apt -y install qemu binfmt-support qemu-user-static && docker run --rm --privileged multiarch/qemu-user-static --reset -p yes && make armhf
+  linux2:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v3
+      with: { fetch-depth: 2 }
+    - run: if ./test/match_changed_files.sh '^test|^src/.*.[ch]' ; then echo GO=1 >> $GITHUB_ENV ; fi
+    - if: ${{ env.GO == 1 }}
+      run: sudo apt -y update ; sudo apt -y install libmbedtls-dev valgrind
+    - if: ${{ env.GO == 1 }}
+      run: make unamalgamated && make valgrind && make mg_prefix
  macos:
    runs-on: macos-latest
+    env: { HOMEBREW_NO_AUTO_UPDATE: 1 }
    steps:
-    - uses: actions/checkout@v2
-    - name: Install packages
-      run: HOMEBREW_NO_AUTO_UPDATE=1 brew install jq mbedtls openssl
-    - name: make
-      run: make test++ upload-coverage IPV6=0
-    - name: openssl
-      run: make test SSL=OPENSSL IPV6=0
-    - name: exports
+    - uses: actions/checkout@v3
+      with: { fetch-depth: 2 }
+    - run: if ./test/match_changed_files.sh '^test|^src/.*.[ch]' ; then echo GO=1 >> $GITHUB_ENV ; fi
+    - if: ${{ env.GO == 1 }}
+      run: brew install jq mbedtls openssl
+    - if: ${{ env.GO == 1 }}
+      run:  make test upload-coverage TFLAGS=-DNO_SNTP_CHECK SSL=OPENSSL ASAN_OPTIONS= OPENSSL=`echo /usr/local/Cellar/openssl*/*`
+    - if: ${{ env.GO == 1 }}
+      run:  make test SSL=MBEDTLS TFLAGS=-DNO_SNTP_CHECK ASAN_OPTIONS= MBEDTLS=`echo /usr/local/Cellar/mbedtls*/*`
+    - if: ${{ env.GO == 1 }}
      run: make mg_prefix
  windows:
    runs-on: ubuntu-latest
    steps:
-    - uses: actions/checkout@v2
-    - name: vc98
-      run: make vc98
-    - name: vc2017
-      run: make vc2017
-    - name: mingw
-      run: make mingw
-    - name: mingw++
-      run: make mingw++
+    - uses: actions/checkout@v3
+      with: { fetch-depth: 2 }
+    - run: if ./test/match_changed_files.sh '^test|^src/.*.[ch]' ; then echo GO=1 >> $GITHUB_ENV ; fi
+    - if: ${{ env.GO == 1 }}
+      run: make vc98 vc17 vc22 mingw mingw++
+  arduino-xiao:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v3
+      with: { fetch-depth: 2 }
+    - run: if ./test/match_changed_files.sh '^examples/arduino|^src/.*.[ch]'  ; then echo GO=1 >> $GITHUB_ENV ; fi
+    - if: ${{ env.GO == 1 }}
+      run: make arduino-xiao
+  arm:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v3
+    - run: make arm
+  riscv:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v3
+    - run: make riscv

+  examples:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v3
+    - run: sudo apt -y install libmbedtls-dev libpcap-dev
+    - run: make clean examples
+    - run: make clean test MG_ENABLE_POLL=1
+  examples_win:
+    runs-on: windows-latest
+    steps:
+    - uses: actions/checkout@v3
+#    - uses: egor-tensin/setup-mingw@v2
+#      with:
+#        platform: x64
+    - name: test they build
+      run: make examples_win
+      shell: cmd
+    - name: test they clean
+      run: make clean_examples_win
+      shell: cmd
+  examples_mac:
+    runs-on: macos-latest
+    env: { HOMEBREW_NO_AUTO_UPDATE: 1 }
+    steps:
+    - uses: actions/checkout@v3
+    - run: make examples_mac
+    - run: make clean_examples_mac
+
+  test_f7:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v3
+      with: { fetch-depth: 2 }
+    - run: if ./test/match_changed_files.sh "^src|examples/stm32/nucleo-f7" ; then echo GO=1 >> $GITHUB_ENV ; fi
+    - if: ${{ env.GO == 1 }}
+      run: sudo apt -y update; sudo apt -y install gcc-arm-none-eabi
+    - if: ${{ env.GO == 1 }}
+      run:  make -C examples/stm32/nucleo-f746zg-baremetal test VCON_API_KEY=${{secrets.VCON_API_KEY}}
+    - if: ${{ env.GO == 1 }}
+      run:  make -C examples/stm32/nucleo-f746zg-freertos test VCON_API_KEY=${{secrets.VCON_API_KEY}}
+    - if: ${{ env.GO == 1 }}
+      run:  make -C examples/stm32/nucleo-f746zg-freertos-tcp test VCON_API_KEY=${{secrets.VCON_API_KEY}}
+
+  test_f4:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v3
+      with: { fetch-depth: 2 }
+    - run: if ./test/match_changed_files.sh "^src|examples/stm32/nucleo-f4" ; then echo GO=1 >> $GITHUB_ENV ; fi
+    - if: ${{ env.GO == 1 }}
+      run: sudo apt -y update; sudo apt -y install gcc-arm-none-eabi
+    - if: ${{ env.GO == 1 }}
+      run:  make -C examples/stm32/nucleo-f429zi-baremetal test VCON_API_KEY=${{secrets.VCON_API_KEY}}
+    - if: ${{ env.GO == 1 }}
+      run:  make -C examples/stm32/nucleo-f429zi-freertos test VCON_API_KEY=${{secrets.VCON_API_KEY}}
+
+  test_h7:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v3
+      with: { fetch-depth: 3 }
+    - run: if ./test/match_changed_files.sh "^src|examples/stm32/nucleo-h7" ; then echo GO=1 >> $GITHUB_ENV ; fi
+    - if: ${{ env.GO == 1 }}
+      run: sudo apt -y update; sudo apt -y install gcc-arm-none-eabi
+    - if: ${{ env.GO == 1 }}
+      run:  make -C examples/stm32/nucleo-h743zi-baremetal test VCON_API_KEY=${{secrets.VCON_API_KEY}}
+
+  test_tm4c:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v3
+      with: { fetch-depth: 2 }
+    - run: if ./test/match_changed_files.sh "^src|examples/ti/ek-tm4c" ; then echo GO=1 >> $GITHUB_ENV ; fi
+    - if: ${{ env.GO == 1 }}
+      run: sudo apt -y update; sudo apt -y install gcc-arm-none-eabi
+    - run: echo GO=0 > $GITHUB_ENV ; if ./test/match_changed_files.sh "^src|examples/ti/ek-tm4c1294xl-baremetal" ; then echo GO=1 > $GITHUB_ENV ; fi
+    - if: ${{ env.GO == 1 }}
+      run:  make -C examples/ti/ek-tm4c1294xl-baremetal test VCON_API_KEY=${{secrets.VCON_API_KEY}}
+    - run: echo GO=0 > $GITHUB_ENV ; if ./test/match_changed_files.sh "^src|examples/ti/ek-tm4c1294xl-freertos" ; then echo GO=1 > $GITHUB_ENV ; fi
+    - if: ${{ env.GO == 1 }}
+      run:  make -C examples/ti/ek-tm4c1294xl-freertos test VCON_API_KEY=${{secrets.VCON_API_KEY}}
+
+  test_pico_w5500:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v3
+      with: { fetch-depth: 2 }
+    - run: if ./test/match_changed_files.sh "^src|examples/rp2040/pico-w5500" ; then echo GO=1 >> $GITHUB_ENV ; fi
+    - if: ${{ env.GO == 1 }}
+      run: sudo apt -y update; sudo apt -y install gcc-arm-none-eabi
+    - if: ${{ env.GO == 1 }}
+      run:  make -C examples/rp2040/pico-w5500 test VCON_API_KEY=${{secrets.VCON_API_KEY}}
+
+  matrix_examples:
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        example:
+          - path: esp32/device-dashboard
+          - path: esp32/uart-bridge
+          - path: esp8266/http-client-server
+          - path: stm32/nucleo-h743zi-baremetal
+          - path: stm32/stm32-nucleo-f746z
+          - path: stm32/stm32-nucleo-f746zg
+          - path: stm32/stm32-nucleo-f429z
+          - path: stm32/stm32-nucleo-h743z
+          - path: stm32/nucleo-f429zi-baremetal
+          - path: stm32/nucleo-f429zi-freertos
+          - path: stm32/nucleo-f429zi-rndis
+          - path: stm32/nucleo-f746zg-baremetal
+          - path: stm32/nucleo-f746zg-freertos
+          - path: stm32/nucleo-f746zg-freertos-tcp
+          - path: stm32/nucleo-f746zg-rndis
+          - path: nxp/nxp-mimxrt1020-azurertos
+          - path: nxp/nxp-frdmk66f-freertos
+          - path: nxp/nxp-lpcxpresso54s018m-freertos
+          - path: nxp/nxp-mimxrt1020-freertos
+          - path: nxp/nxp-evkbimxrt1050-lwip-freertos
+          - path: nxp/nxp-evkmimxrt1020-lwip-freertos
+          - path: nxp/nxp-evkmimxrt1024-lwip-freertos
+          - path: nxp/nxp-evkmimxrt1060-lwip-freertos
+          - path: nxp/nxp-evkmimxrt1064-lwip-freertos
+          - path: nxp/nxp-evkmimxrt1160-cm7-lwip-freertos
+          - path: nxp/nxp-evkmimxrt1170-cm7-lwip-freertos
+          - path: nxp/nxp-frdmk64f-lwip-freertos
+          - path: nxp/nxp-frdmk66f-lwip-freertos
+          - path: nxp/nxp-lpcxpresso54018-lwip-freertos
+          - path: nxp/nxp-lpcxpresso54608-lwip-freertos
+          - path: nxp/nxp-lpcxpresso54618-lwip-freertos
+          - path: nxp/nxp-lpcxpresso54628-lwip-freertos
+          - path: nxp/nxp-twrk65f180m-lwip-freertos
+          - path: nxp/nxp-twrkv58f220m-lwip-freertos
+          - path: infineon/infineon-xmc4700_4800-lwip-rtx-rtos
+          - path: ti/ti-ek-tm4c1294xl-http-server
+          - path: ti/ek-tm4c1294xl-baremetal
+          - path: ti/ek-tm4c1294xl-freertos
+          - path: rp2040/pico-rmii
+          - path: rp2040/pico-rndis-dashboard
+          - path: rp2040/pico-w
+          - path: rp2040/pico-w5500
+    name: ${{ matrix.example.path }}
+    steps:
+      - uses: actions/checkout@v3
+        with: { fetch-depth: 2 }
+      - run: if ./test/match_changed_files.sh '^src|^examples/${{ matrix.example.path }}'; then echo GO=1 >> $GITHUB_ENV ; fi
+      - if: ${{ env.GO == 1 }}
+        run: sudo apt -y update ; sudo apt -y install gcc-arm-none-eabi
+      - if: ${{ env.GO == 1 }}
+        run: make -C examples/${{ matrix.example.path }} build
+  
+  cube_examples:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+        with: { fetch-depth: 2 }
+      - run: if ./test/match_changed_files.sh '^src|examples/stm32/nucleo-*-cube-*'; then echo GO=1 >> $GITHUB_ENV ; fi
+      - if: ${{ env.GO == 1 }}
+        run: cd test/cube && make
+
+  zephyr_examples:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+        with: { fetch-depth: 2 }
+      - run: if ./test/match_changed_files.sh '^src/.*.[ch]|^examples/zephyr'; then sudo apt -y update ; sudo apt -y install gcc-arm-none-eabi ; fi
+      - if: ${{ env.GO == 1 }}
+        run: make -C examples/zephyr init
+      - name: minify manifest
+        if: ${{ env.GO == 1 }}
+        uses: mikefarah/yq@master
+        with:
+          cmd: yq -i eval '(.manifest.defaults, .manifest.remotes, .manifest.projects[] | select(.name == "cmsis" or .name == "hal_stm32" or .name == "mbedtls" or .name == "mcuboot" or .name == "picolibc" | del(.null) ), .manifest.self) as $i ireduce({};setpath($i | path; $i)) | del(.manifest.projects.[].null) | del(..|select(length==0))' examples/zephyr/zephyrproject/zephyr/west.yml
+      - if: ${{ env.GO == 1 }}
+        run: make -C examples/zephyr update
+      - if: ${{ env.GO == 1 }}
+        run: make -C examples/zephyr/device-dashboard build
+      - if: ${{ env.GO == 1 }}
+        run: make -C examples/zephyr/http-client build
+      - if: ${{ env.GO == 1 }}
+        run: make -C examples/zephyr/http-server build
+      - if: ${{ env.GO == 1 }}
+        run: make -C examples/zephyr/mqtt-aws-client build
+      - if: ${{ env.GO == 1 }}
+        run: make -C examples/zephyr/websocket-server build
@@ -1,5 +1,5 @@
 Copyright (c) 2004-2013 Sergey Lyubka
-Copyright (c) 2013-2020 Cesanta Software Limited
+Copyright (c) 2013-2023 Cesanta Software Limited
 All rights reserved

 This software is dual-licensed: you can redistribute it and/or modify
@@ -13,4 +13,4 @@ warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 See the GNU General Public License for more details.

 Alternatively, you can license this software under a commercial
-license, as set out in <https://www.cesanta.com/license>.
+license, as set out in <https://mongoose.ws/licensing/>.
@@ -1,106 +1,206 @@
-SRCS = $(wildcard src/*.c)
-HDRS = $(wildcard src/*.h)
-DEFS ?= -DMG_MAX_HTTP_HEADERS=5 -DMG_ENABLE_LINES -DMG_ENABLE_DIRECTORY_LISTING=1 -DMG_ENABLE_SSI=1
-CFLAGS ?= -W -Wall -Werror -Isrc -I. -O0 -g $(DEFS) $(TFLAGS) $(EXTRA)
-SSL ?= MBEDTLS
-CDIR ?= $(realpath $(CURDIR))
-VC98 = docker run --rm -e WINEDEBUG=-all -v $(CDIR):$(CDIR) -w $(CDIR) docker.io/mdashnet/vc98
-VC2017 = docker run --rm -e WINEDEBUG=-all -v $(CDIR):$(CDIR) -w $(CDIR) docker.io/mdashnet/vc2017
-MINGW = docker run --rm -v $(CDIR):$(CDIR) -w $(CDIR) docker.io/mdashnet/mingw
-GCC = docker run --rm -v $(CDIR):$(CDIR) -w $(CDIR) mdashnet/cc2
-VCFLAGS = /nologo /W3 /O2 /I. $(DEFS) $(TFLAGS)
-CLANG ?= clang # /usr/local/opt/llvm\@9/bin/clang
+SRCS = mongoose.c test/unit_test.c test/packed_fs.c
+HDRS = $(wildcard src/*.h) $(wildcard src/tcpip/*.h)
+DEFS ?= -DMG_MAX_HTTP_HEADERS=7 -DMG_ENABLE_LINES -DMG_ENABLE_PACKED_FS=1 -DMG_ENABLE_SSI=1 -DMG_ENABLE_ASSERT=1
+WARN ?= -pedantic -W -Wall -Werror -Wshadow -Wdouble-promotion -fno-common -Wconversion -Wundef
+OPTS ?= -O3 -g3
+INCS ?= -Isrc -I.
+SSL ?=
+CWD ?= $(realpath $(CURDIR))
+ENV ?=  -e Tmp=. -e WINEDEBUG=-all 
+DOCKER ?= docker run --platform linux/amd64 --rm $(ENV) -v $(CWD):$(CWD) -w $(CWD)
+VCFLAGS = /nologo /W3 /O2 /MD /I. $(DEFS) $(TFLAGS)
 IPV6 ?= 1
-ASAN_OPTIONS ?=
-EXAMPLES := $(wildcard examples/*)
-EXAMPLE_TARGET ?= example
-.PHONY: ex test
+ASAN ?= -fsanitize=address,undefined,alignment -fno-sanitize-recover=all -fno-omit-frame-pointer -fno-common
+ASAN_OPTIONS ?= detect_leaks=1
+EXAMPLES := $(dir $(wildcard examples/*/Makefile))
+EXAMPLES_MAC := $(filter-out examples/mip-pcap/ examples/mip-tap/, $(EXAMPLES))
+EXAMPLES_WIN := $(dir $(wildcard examples/device-dashboard/Makefile) $(wildcard examples/file-*/Makefile) $(wildcard examples/http-*/Makefile) $(wildcard examples/mqtt-*/Makefile) $(wildcard examples/websocket-*/Makefile) $(wildcard examples/webui-*/Makefile))
+EXAMPLES_EMBEDDED := $(filter-out $(wildcard examples/zephyr/*/), $(dir $(wildcard examples/*/*/Makefile)))
+PREFIX ?= /usr/local
+VERSION ?= $(shell cut -d'"' -f2 src/version.h)
+COMMON_CFLAGS ?= $(C_WARN) $(WARN) $(INCS) $(DEFS) -DMG_ENABLE_IPV6=$(IPV6) $(TFLAGS) -pthread
+CFLAGS ?= $(OPTS) $(ASAN) $(COMMON_CFLAGS)
+VALGRIND_CFLAGS ?= $(OPTS) $(COMMON_CFLAGS)
+VALGRIND_RUN ?= valgrind --tool=memcheck --gen-suppressions=all --leak-check=full --show-leak-kinds=all --leak-resolution=high --track-origins=yes --error-exitcode=1 --exit-on-first-error=yes --fair-sched=yes
+.PHONY: clean_examples examples mip_test test valgrind
+
+ifeq "$(findstring ++,$(CC))" ""
+# $(CC) does not end with ++, i.e. we're using C. Apply C flags
+C_WARN ?= -Wmissing-prototypes -Wstrict-prototypes
+else
+# $(CC) ends with ++, i.e. we're using C++. Apply C++ flags
+C_WARN ?= -Wno-deprecated
+endif

 ifeq "$(SSL)" "MBEDTLS"
-MBEDTLS_DIR ?= $(shell brew --cellar mbedtls)
-MBEDTLS_VER ?= $(shell brew info mbedtls --json | jq -j .[0].installed[0].version)
-MBEDTLS ?= $(MBEDTLS_DIR)/$(MBEDTLS_VER)
-CFLAGS += -DMG_ENABLE_MBEDTLS=1 -I$(MBEDTLS)/include -I/usr/include
+MBEDTLS ?= /usr/local
+CFLAGS  += -DMG_ENABLE_MBEDTLS=1 -I$(MBEDTLS)/include -I/usr/include
 LDFLAGS ?= -L$(MBEDTLS)/lib -lmbedtls -lmbedcrypto -lmbedx509
 endif
+
 ifeq "$(SSL)" "OPENSSL"
-OPENSSL_DIR ?= $(shell brew --cellar openssl)
-OPENSSL_VER ?= $(shell brew info openssl --json | jq -j .[0].installed[0].version)
-OPENSSL ?= $(OPENSSL_DIR)/$(OPENSSL_VER)
-CFLAGS += -DMG_ENABLE_OPENSSL=1 -I$(OPENSSL)/include
+OPENSSL ?= /usr/local
+CFLAGS  += -DMG_ENABLE_OPENSSL=1 -I$(OPENSSL)/include
 LDFLAGS ?= -L$(OPENSSL)/lib -lssl -lcrypto
 endif

-all: mg_prefix test test++ ex vc98 vc2017 mingw mingw++ linux linux++ infer fuzz
+all:
+	$(MAKE) -C examples/http-server

-ex:
-	@for X in $(EXAMPLES); do $(MAKE) -C $$X $(EXAMPLE_TARGET); done
+tall: mg_prefix unamalgamated test mip_test arm examples vc98 vc17 vc22 mingw mingw++ fuzz
+
+mip_test: test/mip_test.c mongoose.c mongoose.h Makefile mip_tap_test
+	$(CC) test/mip_test.c $(INCS) $(WARN) $(OPTS) $(C_WARN) $(ASAN) -o $@
+	ASAN_OPTIONS=$(ASAN_OPTIONS) $(RUN) ./$@
+
+mip_tap_test: test/mip_tap_test.c mongoose.c mongoose.h Makefile
+	$(CC) test/mip_tap_test.c $(INCS) $(WARN) $(OPTS) $(C_WARN) $(ASAN) -o $@
+	ASAN_OPTIONS=$(ASAN_OPTIONS) $(RUN) ./$@
+
+examples:
+	@for X in $(EXAMPLES); do test -f $$X/Makefile || continue; $(MAKE) -C $$X example || exit 1; done
+clean_examples:
+	for X in $(EXAMPLES); do test -f $$X/Makefile || continue; $(MAKE) -C $$X clean || exit 1; done
+
+examples_mac:
+	for X in $(EXAMPLES_MAC); do test -f $$X/Makefile || continue; $(MAKE) -C $$X example || exit 1; done
+clean_examples_mac:
+	for X in $(EXAMPLES_MAC); do test -f $$X/Makefile || continue; $(MAKE) -C $$X clean || exit 1; done
+
+examples_win:
+	$(foreach X, $(EXAMPLES_WIN), $(MAKE) -C $(X) example &)
+clean_examples_win:
+	$(foreach X, $(EXAMPLES_WIN), $(MAKE) -C $(X) clean &)
+
+test/packed_fs.c: Makefile src/ssi.h test/fuzz.c test/data/a.txt
+	$(CC) $(CFLAGS) test/pack.c -o pack
+	$(RUN) ./pack Makefile src/ssi.h test/fuzz.c test/data/a.txt test/data/range.txt > $@
+
+DIR ?= test/data
+OUT ?= packed_fs.c
+mkfs:
+	$(CC) $(CFLAGS) test/pack.c -o pack
+	$(RUN) ./pack -s $(DIR) `find $(DIR) -type f` > $(OUT)
+#	find $(DIR) -type f | sed -e s,^$(DIR),,g -e s,^/,,g

 # Check that all external (exported) symbols have "mg_" prefix
 mg_prefix: mongoose.c mongoose.h
-	$(CLANG) mongoose.c $(CFLAGS) -c -o /tmp/x.o && nm /tmp/x.o | grep ' T' | grep -v 'mg_' ; test $$? = 1
+	$(CC) mongoose.c $(CFLAGS) -c -o /tmp/x.o && nm /tmp/x.o | grep ' T ' | grep -v 'mg_' ; test $$? = 1

-# C++ build
-test++: CLANG = g++ -Wno-deprecated -Wno-missing-field-initializers
-test++: unamalgamated
+musl: test
+musl: ASAN =
+musl: WARN += -Wno-sign-conversion
+musl: CC = $(DOCKER) mdashnet/cc1 gcc
+musl: RUN = $(DOCKER) mdashnet/cc1

 # Make sure we can build from an unamalgamated sources
-unamalgamated: $(SRCS) $(HDRS) Makefile
-	$(CLANG) src/*.c test/unit_test.c $(CFLAGS) $(LDFLAGS) -g -o unit_test
+unamalgamated: $(HDRS) Makefile test/packed_fs.c
+	$(CC) src/*.c test/packed_fs.c test/unit_test.c $(CFLAGS) $(LDFLAGS) -g -o unit_test

+fuzz: ASAN = -fsanitize=fuzzer,signed-integer-overflow,address,undefined
 fuzz: mongoose.c mongoose.h Makefile test/fuzz.c
-	$(CLANG) mongoose.c test/fuzz.c $(CFLAGS) -DMG_ENABLE_LINES -DMG_ENABLE_LOG=0 -fsanitize=fuzzer,signed-integer-overflow,address $(LDFLAGS) -g -o fuzzer
-	$(DEBUGGER) ./fuzzer
+	$(CC) test/fuzz.c $(OPTS) $(WARN) $(INCS) $(TFLAGS) $(ASAN) -o fuzzer
+	$(RUN) ./fuzzer

-# make CLANG=/usr/local/opt/llvm\@8/bin/clang ASAN_OPTIONS=detect_leaks=1
-test: CFLAGS += -DMG_ENABLE_IPV6=$(IPV6) -fsanitize=address#,undefined
-test: mongoose.c mongoose.h  Makefile test/unit_test.c
-	$(CLANG) mongoose.c test/unit_test.c $(CFLAGS) -coverage $(LDFLAGS) -g -o unit_test
-	ASAN_OPTIONS=$(ASAN_OPTIONS) $(DEBUGGER) ./unit_test
+FUZZDATA ?= /tmp/fuzzdata
+fuzz2: mongoose.c mongoose.h Makefile test/fuzz.c
+	$(CC) test/fuzz.c -DMAIN $(OPTS) $(WARN) $(ASAN) $(INCS) -o fuzzer
+	$(RUN) ./fuzzer $(FUZZDATA)

+test: Makefile mongoose.h $(SRCS)
+	$(CC) $(SRCS) $(CFLAGS) $(LDFLAGS) -o unit_test
+	ASAN_OPTIONS=$(ASAN_OPTIONS) $(RUN) ./unit_test
+
+coverage: CFLAGS += -coverage
 coverage: test
 	gcov -l -n *.gcno | sed '/^$$/d' | sed 'N;s/\n/ /'
-	gcov mongoose.gcno >/dev/null
+	gcov -t mongoose.c > mongoose.gcov

 upload-coverage: coverage
 	curl -s https://codecov.io/bash | /bin/bash

-infer:
-	infer run -- cc test/unit_test.c -c -W -Wall -Werror -Isrc -I. -O2 -DMG_ENABLE_MBEDTLS=1 -DMG_ENABLE_LINES -I/usr/local/Cellar/mbedtls/2.23.0/include  -DMG_ENABLE_IPV6=1 -g -o /dev/null
+valgrind: Makefile mongoose.h mongoose.c
+	$(CC) $(SRCS) $(VALGRIND_CFLAGS) $(LDFLAGS) -g -o unit_test
+	$(VALGRIND_RUN) ./unit_test

-#vc98: VCFLAGS += -DMG_ENABLE_IPV6=1
-vc98: Makefile mongoose.c mongoose.h test/unit_test.c
-	$(VC98) wine cl mongoose.c test/unit_test.c $(VCFLAGS) ws2_32.lib /Fe$@.exe
-	$(VC98) wine $@.exe
+armhf: ASAN=
+armhf: IPV6=0
+armhf: CC = $(DOCKER) mdashnet/armhf cc
+armhf: RUN = $(DOCKER) mdashnet/armhf
+armhf: test

-#vc2017: VCFLAGS += -DMG_ENABLE_IPV6=1
-vc2017: Makefile mongoose.c mongoose.h test/unit_test.c
-	$(VC2017) wine64 cl mongoose.c test/unit_test.c $(VCFLAGS) ws2_32.lib /Fe$@.exe
-	$(VC2017) wine64 $@.exe
+s390: ASAN=
+s390: IPV6=0
+s390: CC = $(DOCKER) mdashnet/s390 cc
+s390: RUN = $(DOCKER) mdashnet/s390
+s390: test

-mingw: Makefile mongoose.c mongoose.h test/unit_test.c
-	$(MINGW) i686-w64-mingw32-gcc mongoose.c test/unit_test.c -W -Wall -Werror -I. $(DEFS) -lwsock32 -o test.exe
-	$(VC98) wine test.exe
+arm: DEFS += -DMG_ENABLE_FILE=0 -DMG_ENABLE_TCPIP=1 -DMG_ARCH=MG_ARCH_NEWLIB 
+arm: mongoose.h $(SRCS)
+	$(DOCKER) mdashnet/armgcc arm-none-eabi-gcc -mcpu=cortex-m3 -mthumb $(SRCS) $(OPTS) $(WARN) $(INCS) $(DEFS) $(TFLAGS) -o unit_test -nostartfiles --specs nosys.specs -e 0

-mingw++: Makefile mongoose.c mongoose.h test/unit_test.c
-	$(MINGW) i686-w64-mingw32-g++ mongoose.c test/unit_test.c -W -Wall -Werror -I. $(DEFS) -lwsock32 -o test.exe
-  # Note: for some reason, a binary built with mingw g++, fails to run
+riscv: DEFS += -DMG_ENABLE_FILE=0 -DMG_ENABLE_TCPIP=1 -DMG_ARCH=MG_ARCH_NEWLIB 
+riscv: mongoose.h $(SRCS)
+	$(DOCKER) mdashnet/riscv riscv-none-elf-gcc -march=rv32imc -mabi=ilp32 $(SRCS) $(OPTS) $(WARN) $(INCS) $(DEFS) $(TFLAGS) -o unit_test

-#linux: CFLAGS += -DMG_ENABLE_IPV6=$(IPV6)
-linux: CFLAGS += -fsanitize=address,undefined
-linux: Makefile mongoose.c mongoose.h test/unit_test.c
-	$(GCC) $(CC) mongoose.c test/unit_test.c $(CFLAGS) $(LDFLAGS) -o unit_test_gcc
-	$(GCC) ./unit_test_gcc
+vc98: Makefile mongoose.h $(SRCS)
+	$(DOCKER) mdashnet/vc98 wine cl $(SRCS) $(VCFLAGS) ws2_32.lib /Fe$@.exe
+	$(DOCKER) mdashnet/vc98 wine $@.exe

-linux++: CC = g++ -Wno-missing-field-initializers
-linux++: linux
+vc17: Makefile mongoose.h $(SRCS)
+	$(DOCKER) mdashnet/vc17 wine64 cl $(SRCS) $(VCFLAGS) ws2_32.lib /Fe$@.exe
+	$(DOCKER) mdashnet/vc17 wine64 $@.exe

-mongoose.c: $(SRCS) Makefile
-	(cat src/license.h; echo; echo '#include "mongoose.h"' ; (for F in src/private.h src/*.c ; do echo; echo '#ifdef MG_ENABLE_LINES'; echo "#line 1 \"$$F\""; echo '#endif'; cat $$F | sed -e 's,#include ".*,,'; done))> $@
+vc22: Makefile mongoose.h $(SRCS)
+	$(DOCKER) mdashnet/vc22 wine64 cl $(SRCS) $(VCFLAGS) ws2_32.lib /Fe$@.exe
+	$(DOCKER) mdashnet/vc22 wine64 $@.exe
+
+mingw: Makefile mongoose.h $(SRCS)
+	$(DOCKER) mdashnet/mingw x86_64-w64-mingw32-gcc $(SRCS) -W -Wall -Werror -I. $(DEFS) -lwsock32 -o $@.exe
+	$(DOCKER) mdashnet/mingw wine64 $@.exe
+
+arduino: ENV = -v $(CWD)/arduino:/root
+arduino:
+	curl -sL http://downloads.arduino.cc/arduino-1.8.19-linux64.tar.xz | unxz | tar -xf -
+	mv arduino-* $@
+	$(DOCKER) mdashnet/cc2 ./arduino/arduino --pref "boardsmanager.additional.urls=https://files.seeedstudio.com/arduino/package_seeeduino_boards_index.json" --save-prefs
+	$(DOCKER) mdashnet/cc2 ./arduino/arduino --pref "compiler.warning_level=all" --save-prefs
+	$(DOCKER) mdashnet/cc2 ./arduino/arduino --install-boards Seeeduino:samd
+
+arduino-xiao: ENV = -v $(CWD)/arduino:/root
+arduino-xiao: arduino
+	rm -rf tmp; mkdir tmp
+	cp examples/arduino/w5500/w5500.ino tmp/tmp.ino
+	cp mongoose.c mongoose.h examples/arduino/w5500/mongoose_custom.h tmp/
+	$(DOCKER) mdashnet/cc2 ./arduino/arduino --verbose --verify --board Seeeduino:samd:seeed_XIAO_m0 tmp/tmp.ino
+
+mingw++: Makefile mongoose.h $(SRCS)
+	$(DOCKER) mdashnet/mingw x86_64-w64-mingw32-g++ $(SRCS) -W -Wall -Werror -I. $(DEFS) -lwsock32 -o $@.exe
+
+linux-libs: CFLAGS += -fPIC
+linux-libs: mongoose.o
+	$(CC) mongoose.o $(LDFLAGS) -shared -o libmongoose.so.$(VERSION)
+	$(AR) rcs libmongoose.a mongoose.o
+
+install: linux-libs
+	install -Dm644 libmongoose.a libmongoose.so.$(VERSION) $(DESTDIR)$(PREFIX)/lib
+	ln -s libmongoose.so.$(VERSION) $(DESTDIR)$(PREFIX)/lib/libmongoose.so
+	install -Dm644 mongoose.h $(DESTDIR)$(PREFIX)/include/mongoose.h
+
+uninstall:
+	rm -rf $(DESTDIR)$(PREFIX)/lib/libmongoose.a $(DESTDIR)$(PREFIX)/lib/libmongoose.so.$(VERSION) $(DESTDIR)$(PREFIX)/include/mongoose.h $(DESTDIR)$(PREFIX)/lib/libmongoose.so
+
+mongoose.c: Makefile $(wildcard src/*.c) $(wildcard src/tcpip/*.c)
+	(cat src/license.h; echo; echo '#include "mongoose.h"' ; (for F in src/*.c src/tcpip/*.c ; do echo; echo '#ifdef MG_ENABLE_LINES'; echo "#line 1 \"$$F\""; echo '#endif'; cat $$F | sed -e 's,#include ".*,,'; done))> $@

 mongoose.h: $(HDRS) Makefile
-	(cat src/license.h src/version.h ; cat src/arch.h src/arch_*.h src/config.h src/str.h src/log.h src/timer.h src/util.h src/url.h src/iobuf.h src/base64.h src/md5.h src/sha1.h src/event.h src/net.h src/http.h src/ssi.h src/tls.h src/ws.h src/sntp.h src/mqtt.h src/dns.h | sed -e 's,#include ".*,,' -e 's,^#pragma once,,')> $@
+	(cat src/license.h; echo; echo '#ifndef MONGOOSE_H'; echo '#define MONGOOSE_H'; echo; cat src/version.h ; echo; echo '#ifdef __cplusplus'; echo 'extern "C" {'; echo '#endif'; cat src/arch.h src/arch_*.h src/net_*.h src/config.h src/str.h src/queue.h src/fmt.h src/printf.h src/log.h src/timer.h src/fs.h src/util.h src/url.h src/iobuf.h src/base64.h src/md5.h src/sha1.h src/event.h src/net.h src/http.h src/ssi.h src/tls.h src/tls_mbed.h src/tls_openssl.h src/ws.h src/sntp.h src/mqtt.h src/dns.h src/json.h src/rpc.h src/tcpip/tcpip.h src/tcpip/driver_*.h | sed -e '/keep/! s,#include ".*,,' -e 's,^#pragma once,,'; echo; echo '#ifdef __cplusplus'; echo '}'; echo '#endif'; echo '#endif  // MONGOOSE_H')> $@
+
+
+clean: clean_examples clean_embedded
+	rm -rf $(PROG) *.exe *.o *.dSYM *_test* ut fuzzer *.gcov *.gcno *.gcda *.obj *.exe *.ilk *.pdb slow-unit* _CL_* infer-out data.txt crash-* test/packed_fs.c pack arduino tmp
+	#find examples -maxdepth 3 -name zephyr -prune -o -name Makefile -print | xargs dirname | xargs -n1 make clean -C
+
+clean_embedded:
+	for X in $(EXAMPLES_EMBEDDED); do test -f $$X/Makefile || continue; $(MAKE) -C $$X clean || exit 1; done

-clean: EXAMPLE_TARGET = clean
-clean: ex
-	rm -rf $(PROG) *.o *.dSYM unit_test* ut fuzzer *.gcov *.gcno *.gcda *.obj *.exe *.ilk *.pdb slow-unit* _CL_* infer-out data.txt crash-*
@@ -1,75 +1,82 @@
 # Mongoose - Embedded Web Server / Embedded Networking Library

-![License: GPLv2](https://img.shields.io/badge/license-GPL_2-green.svg "License")
+[![License: GPLv2/Commercial](https://img.shields.io/badge/License-GPLv2%20or%20Commercial-green.svg)](https://opensource.org/licenses/gpl-2.0.php)
 [![Build Status]( https://github.com/cesanta/mongoose/workflows/build/badge.svg)](https://github.com/cesanta/mongoose/actions)
 [![Code Coverage](https://codecov.io/gh/cesanta/mongoose/branch/master/graph/badge.svg)](https://codecov.io/gh/cesanta/mongoose)
 [![Fuzzing Status](https://oss-fuzz-build-logs.storage.googleapis.com/badges/mongoose.svg)](https://bugs.chromium.org/p/oss-fuzz/issues/list?sort=-opened&can=1&q=proj:mongoose)

-Mongoose is a networking library for C/C++. It implements event-driven
-non-blocking APIs for TCP, UDP, HTTP, WebSocket, MQTT.  It has been designed
-for connecting devices and bringing them online. On the market since 2004, used
-by vast number of open source and commercial products - it even runs on the
+Mongoose is a network library for C/C++. 
+It implements event-driven
+non-blocking APIs for TCP, UDP, HTTP, WebSocket, MQTT.  It is designed for
+connecting devices and bringing them online. On the market since 2004, used by
+vast number of open source and commercial products - it even runs on the
 International Space Station!  Mongoose makes embedded network programming fast,
-robust, and easy.
+robust, and easy. Features include:

- [Download Mongoose Source Code here](https://www.cesanta.com/download.html)
- [Read Mongoose documentation](https://cesanta.com/docs/)
+- Cross-platform:
+  - works on Linux/UNIX, MacOS, Windows, Android
+  - works on STM32, NXP, ESP32, NRF52, TI, Microchip, and other
+  - write code once - and it'll work everywhere
+  - ideal for the unification of the network infrastructure code across company
+- Built-in protocols: plain TCP/UDP, HTTP, MQTT, Websocket
+- SSL/TLS support: mbedTLS, OpenSSL or custom (via API)
+- Asynchronous DNS resolver
+- Tiny static and run-time footprint
+- Source code is both ISO C and ISO C++ compliant
+- Very easy to integrate: just copy `mongoose.c` and `mongoose.h` files to your source tree. See
+  [exact steps](https://mongoose.ws/documentation/#2-minute-integration-guide)
+- Works with any network stack with socket API, like LwIP or FreeRTOS-Plus-TCP
+- Provides a built-in TCP/IP stack with drivers for bare metal or RTOS systems
+   - A complete Web device dashboard
+  [bare metal example on Nucleo-F429ZI](examples/stm32/nucleo-f429zi-baremetal)
+  is only 6 files
+   - For comparison, a CubeIDE generated HTTP example is 400+ files
+- Detailed [user guide, API reference and tons of tutorials](https://mongoose.ws/documentation/) available

-Connectivity is vital for software and embedded devices, but there are many
-pitfalls to consider when embedding a web server.  This white paper breaks down
-on the top 9 things to avoid when embedding a web server.

- [Download “9 Things NOT to do when embedding a web server” white paper here](https://www.cesanta.com/whitepaper.html)
+# Commercial use
+- Mongoose is used by hundreds of businesses, from Fortune500 giants like
+  Siemens, Schneider Electric, Broadcom, Bosch, Google, Samsung, Qualcomm, Caterpillar to the small businesses
+- Used to solve a wide range of business needs, like implementing Web UI
+  interface on devices, RESTful API services, telemetry data exchange, remote
+  control for a product, remote software updates, remote monitoring, and others
+- Deployed to hundreds of millions devices in production environment worldwide
+- See [Case Studies](https://mongoose.ws/case-studies/) from our respected
+  customers like [Schneider Electric](https://mongoose.ws/case-studies/schneider-electric/) (industrial automation), [Broadcom](https://mongoose.ws/case-studies/broadcom/) (semiconductors), [Pilz](https://mongoose.ws/case-studies/pilz/) (industrial automation), and others
+- See [Testimonials](https://mongoose.ws/testimonials/) from engineers that integrated Mongoose in their commercial products
+- We provide [Evaluation and Commercial licensing](https://mongoose.ws/licensing/), [support](https://mongoose.ws/support/), consultancy and integration
+  assistance - don't hesitate to [contact us](https://mongoose.ws/contact/)

-# Looking for a pre-compiled Mongoose web server Windows or Mac binary?
- [Download pre-compiled Mongoose web server binary](https://mongoose.ws/)

-# Looking for a complete IoT solution? Check out
- [VCON](https://vcon.io) - Arduino compatible MCU modules with built-in firmware OTA updates
- [Mongoose OS](https://mongoose-os.com) - open source embedded operating system for low-power connected microcontrollers. Secure, designed for commercial Internet of Things products
+# Security

-# Support
- [Study Mongoose examples](https://github.com/cesanta/mongoose/tree/master/examples)
- [Support Forum - ask your technical questions here](https://forum.cesanta.com/c/mongoose-library/6)
- [Commercial licensing and support available](https://www.cesanta.com/licensing.html)
- [Check out latest releases](https://github.com/cesanta/mongoose/releases)
+We take security seriously:
+1. Mongoose repository runs a
+  [continuous integration test powered by GitHub](https://github.com/cesanta/mongoose/actions),
+  which runs through hundreds of unit tests on every commit to the repository.
+  Our [unit tests](https://github.com/cesanta/mongoose/tree/master/test)
+  are built with modern address sanitizer technologies, which help to find
+  security vulnerabilities early
+2. Mongoose repository is integrated into Google's
+  [oss-fuzz continuous fuzzer](https://bugs.chromium.org/p/oss-fuzz/issues/list?sort=-opened&can=1&q=proj:mongoose)
+  which scans for potential vulnerabilities continuously
+3.  We receive periodic vulnerability reports from the independent security
+  groups like
+  [Cisco Talos](https://www.cisco.com/c/en/us/products/security/talos.html),
+  [Microsoft Security Response Center](https://www.microsoft.com/en-us/msrc),
+  [MITRE Corporation](https://www.mitre.org/),
+  [Compass Security](https://www.compass-security.com/en/) and others.
+  In case of the vulnerability found, we act according to the industry best
+  practice: hold on to the publication, fix the software and notify all our
+  customers that have an appropriate subscription
+4. Some of our customers (for example NASA)
+  have specific security requirements and run independent security audits,
+  of which we get notified and in case of any issue, act similar to (3).

-# Features
-
-* Cross-platform: works on Linux/UNIX, MacOS, Windows, Android, FreeRTOS, etc
-* Supported embedded architectures: ESP32, ESP8266, TI, NRF52, STM32, PIC32, NXP, and more
-* Builtin protocols: plain TCP/UDP, HTTP, MQTT, Websocket
-* SSL/TLS support: mbedTLS, OpenSSL or custom (via API)
-* Asynchronous DNS resolver
-* Tiny static and run-time footprint
-* Source code is both ISO C and ISO C++ compliant
-* Very easy to integrate: just copy
-  [mongoose.c](https://raw.githubusercontent.com/cesanta/mongoose/master/mongoose.c) and
-  [mongoose.h](https://raw.githubusercontent.com/cesanta/mongoose/master/mongoose.h)
-  files to your build tree
-
-# Licensing
-
-Mongoose is released under Commercial and [GNU GPL v.2](http://www.gnu.org/licenses/old-licenses/gpl-2.0.html) open source licenses.
-
-Commercial Projects: [Contact us for commercial license.](https://www.cesanta.com/contact.html)
-
-# Dashboard Example
-
-Mongoose is often used to implement device dashboards and real-time
-data exchange over Websocket. Here is a dashboard example that illustrates
-the functionality:
-
-![](http://www.cesanta.com/images/dashboard.png)
-
-[Developing a new product? Contact us today to discuss how Mongoose can help.](https://www.cesanta.com/contact.html)

 # Contributions

 Contributions are welcome! Please follow the guidelines below:

 - Sign [Cesanta CLA](https://cesanta.com/cla.html) and send GitHub pull request
- When making pull requests, please make sure that it has only one commit,
- and imlements/fixes only one piece of functionality
-
-
+- Make sure that PRs have only one commit, and deal with one issue only
@@ -0,0 +1,24 @@
+# Mongoose Network Library Examples
+
+In order to build and run any of the existing examples, please follow:
+https://mongoose.ws/documentation/#how-to-build-and-run-examples
+
+## Contributing
+
+Rules for creating a new example:
+
+- Makefile golden reference for desktop/server example: [http-server](http-server)
+- Makefile golden reference for the embedded example:
+   [stm32/nucleo-f746zg-baremetal](stm32/nucleo-f746zg-baremetal)
+- An example must build on Windows, Mac and Ubuntu Linux systems
+- Assume that user installed tools according to https://mongoose.ws/tutorials/tools/
+- Makefile must not include any other make files
+- Use `CFLAGS` for system-specific compilation options
+- Use `CFLAGS_MONGOOSE` for mongoose-specific compilation options
+- Use `$(CFLAGS) $(CFLAGS_MONGOOSE) $(CFLAGS_EXTRA)` to compile
+- If external repository is required, download it on demand using git
+  shallow clone. See embedded example golden reference
+- Keep Makefile as short as possible, but verbose to understand it easily
+- Symlink files when required, like `mongoose.c`, `ca.pem`, etc. Make no copies
+- Example's README.md should contain only the title and the link to mongoose.ws
+  tutorial page
@@ -0,0 +1 @@
+../../../mongoose.c
@@ -0,0 +1 @@
+../../../mongoose.h
@@ -0,0 +1,14 @@
+#pragma once
+
+#include "Arduino.h"
+
+#include <errno.h>
+#include <stdarg.h>
+#include <stdio.h>
+#include <time.h>
+
+#define MG_ARCH MG_ARCH_CUSTOM
+#define MG_ENABLE_SOCKET 0
+#define MG_ENABLE_TCPIP 1
+#define mkdir(a, b) (-1)
+//#define MG_ENABLE_LOG 0
@@ -0,0 +1,49 @@
+#include <SPI.h>
+#include "mongoose.h"
+
+#define SS_PIN 3    // Slave select pin
+struct mg_mgr mgr;  // Mongoose event manager
+struct mg_tcpip_spi spi = {
+    NULL,                                               // SPI data
+    [](void *) { digitalWrite(SS_PIN, LOW); },          // begin transation
+    [](void *) { digitalWrite(SS_PIN, HIGH); },         // end transaction
+    [](void *, uint8_t c) { return SPI.transfer(c); },  // execute transaction
+};
+struct mg_tcpip_if mif = {.mac = {2, 0, 1, 2, 3, 5}};  // network interface
+
+void setup() {
+  Serial.begin(115200);
+  pinMode(SS_PIN, OUTPUT);
+  SPI.begin();
+
+  // Set logging function to a serial print
+  mg_log_set_fn([](char ch, void *) { Serial.print(ch); }, NULL);
+  mg_mgr_init(&mgr);
+
+  delay(3000);
+  MG_INFO(("Starting TCP/IP stack..."));
+
+  mif.driver = &mg_tcpip_driver_w5500;
+  mif.driver_data = &spi;
+  mg_tcpip_init(&mgr, &mif);
+
+  // Start a 5 sec timer, print status message periodically
+  mg_timer_add(
+      &mgr, 5000, MG_TIMER_REPEAT,
+      [](void *) {
+        MG_INFO(("ethernet: %s", mg_tcpip_driver_w5500.up(&mif) ? "up" : "down"));
+      },
+      NULL);
+
+  // Setup HTTP listener. Respond "ok" on any HTTP request
+  mg_http_listen(
+      &mgr, "http://0.0.0.0",
+      [](struct mg_connection *c, int ev, void *ev_data, void *fn_data) {
+        if (ev == MG_EV_HTTP_MSG) mg_http_reply(c, 200, "", "ok\n");
+      },
+      &mgr);
+}
+
+void loop() {
+  mg_mgr_poll(&mgr, 1);
+}
@@ -1,11 +1,25 @@
-PROG ?= example
-CFLAGS ?= -DMG_IO_SIZE=8192 -DMG_ENABLE_LINES
+PROG ?= example                   # Program we are building
+DELETE = rm -rf                   # Command to remove files
+OUT ?= -o $(PROG)                 # Compiler argument for output file
+SOURCES = main.c mongoose.c       # Source code files
+CFLAGS = -W -Wall -Wextra -g -I.  # Build options

-all: $(PROG)
-	$(DEBUGGER) ./$(PROG) $(ARGS)
+# Mongoose build options. See https://mongoose.ws/documentation/#build-options
+CFLAGS_MONGOOSE += -DMG_IO_SIZE=8192 -DMG_ENABLE_LINES

-$(PROG): main.c
-	$(CC) ../../mongoose.c -I../.. -W -Wall $(CFLAGS) -o $(PROG) main.c
+ifeq ($(OS),Windows_NT)   # Windows settings. Assume MinGW compiler. To use VC: make CC=cl CFLAGS=/MD OUT=/Feprog.exe
+  PROG ?= example.exe           # Use .exe suffix for the binary
+  CC = gcc                      # Use MinGW gcc compiler
+  CFLAGS += -lws2_32            # Link against Winsock library
+  DELETE = cmd /C del /Q /F /S  # Command prompt command to delete files
+  OUT ?= -o $(PROG)             # Build output
+endif

-clean:
-	rm -rf $(PROG) *.o *.dSYM *.gcov *.gcno *.gcda *.obj *.exe *.ilk *.pdb
+all: $(PROG)              # Default target. Build and run program
+	$(RUN) ./$(PROG) $(ARGS)
+
+$(PROG): $(SOURCES)       # Build program from sources
+	$(CC) $(SOURCES) $(CFLAGS) $(CFLAGS_MONGOOSE) $(CFLAGS_EXTRA) $(OUT)
+
+clean:                    # Cleanup. Delete built program and all build artifacts
+	$(DELETE) $(PROG) *.o *.obj *.exe *.dSYM
@@ -0,0 +1 @@
+See detailed tutorial at https://mongoose.ws/tutorials/captive-dns-server/
@@ -21,11 +21,14 @@ uint8_t answer[] = {
 };

 static void fn(struct mg_connection *c, int ev, void *ev_data, void *fn_data) {
-  if (ev == MG_EV_READ) {
+  if (ev == MG_EV_OPEN) {
+    c->is_hexdumping = 1;
+  } else if (ev == MG_EV_READ) {
    struct mg_dns_rr rr;  // Parse first question, offset 12 is header size
    size_t n = mg_dns_parse_rr(c->recv.buf, c->recv.len, 12, true, &rr);
+    MG_INFO(("DNS request parsed, result=%d", (int) n));
    if (n > 0) {
-      char buf[12 + n + sizeof(answer)];
+      char buf[512];
      struct mg_dns_header *h = (struct mg_dns_header *) buf;
      memset(buf, 0, sizeof(buf));  // Clear the whole datagram
      h->txnid = ((struct mg_dns_header *) c->recv.buf)->txnid;  // Copy tnxid
@@ -34,9 +37,9 @@ static void fn(struct mg_connection *c, int ev, void *ev_data, void *fn_data) {
      h->flags = mg_htons(0x8400);     // Authoritative response
      memcpy(buf + sizeof(*h), c->recv.buf + sizeof(*h), n);  // Copy question
      memcpy(buf + sizeof(*h) + n, answer, sizeof(answer));   // And answer
-      mg_send(c, buf, sizeof(buf));                           // And send it!
+      mg_send(c, buf, 12 + n + sizeof(answer));               // And send it!
    }
-    mg_iobuf_delete(&c->recv, c->recv.len);
+    mg_iobuf_del(&c->recv, 0, c->recv.len);
  }
  (void) fn_data;
  (void) ev_data;
@@ -45,7 +48,7 @@ static void fn(struct mg_connection *c, int ev, void *ev_data, void *fn_data) {
 int main(void) {
  struct mg_mgr mgr;

-  mg_log_set("3");                          // Set log level
+  mg_log_set(MG_LL_DEBUG);                  // Set log level
  mg_mgr_init(&mgr);                        // Initialise event manager
  mg_listen(&mgr, s_listen_url, fn, NULL);  // Start DNS server
  for (;;) mg_mgr_poll(&mgr, 1000);         // Event loop
@@ -0,0 +1 @@
+../../mongoose.c
@@ -0,0 +1 @@
+../../mongoose.h
@@ -1,10 +0,0 @@
-PROG ?= example
-
-all: $(PROG)
-	$(DEBUGGER) ./$(PROG)
-
-$(PROG):
-	$(CC) ../../mongoose.c -I../.. $(CFLAGS) $(EXTRA) -o $(PROG) main.c mjson.c
-
-clean:
-	rm -rf $(PROG) *.o *.dSYM *.gcov *.gcno *.gcda *.obj *.exe *.ilk *.pdb log.txt
@@ -1,34 +0,0 @@
-# A complete device dashboard
-
-This example is a demonstration of how Mongoose Library could be integrated
-into an embedded device and provide a complete device dashbord with the
-following features:
-
- Multiple logins with different permissions (admin and user)
- Login screen for non-authenticated connections
- A [preact](https://preactjs.com/)-based dashboard with multiple pages
- Internal variables
- A form that changes those variables
- All changes are propagates to all connected clients
- Live log stream
- Live video stream
-
-
-In essense, this example is a combination of several other examples
-pulled together (multiple-logins, dashboard, live-log, video-stream).
-
-# Screenshots
-
-This is a login screen that prompts for user/password
-
-![](screenshots/login.png)
-
-# Main dashboard
-
-A main dashboard page shows internal data, live video stream, and a form
-
-![](screenshots/dashboard.png)
-
-A live log page shows live log stream coming from device
-
-![](screenshots/logs.png)
@@ -1,204 +0,0 @@
-// Copyright (c) 2020 Cesanta Software Limited
-// All rights reserved
-
-#include "mjson.h"
-#include "mongoose.h"
-
-// Authenticated user.
-// A user can be authenticated by:
-//   - a name:pass pair
-//   - a token
-// When a user is shown a login screen, she enters a user:pass. If successful,
-// a server returns user info which includes token. From that point on,
-// client can use token for authentication. Tokens could be refreshed/changed
-// on a server side, forcing clients to re-login.
-struct user {
-  const char *name, *pass, *token;
-};
-
-// This is a configuration structure we're going to show on a dashboard
-static struct config {
-  int value1;
-  char *value2;
-} s_config = {123, NULL};
-
-// Stringifies the config. A caller must free() it.
-static char *stringify_config(struct config *cfg) {
-  char *s = NULL;
-  mjson_printf(mjson_print_dynamic_buf, &s, "{%Q:%d,%Q:%Q}", "value1",
-               cfg->value1, "value2", cfg->value2);
-  return s;
-}
-
-// Update config structure. Return true if changed, false otherwise
-static bool update_config(struct mg_http_message *hm, struct config *cfg) {
-  bool changed = false;
-  char buf[256];
-  double dv;
-  if (mjson_get_number(hm->body.ptr, hm->body.len, "$.value1", &dv)) {
-    s_config.value1 = dv;
-    changed = true;
-  }
-  if (mjson_get_string(hm->body.ptr, hm->body.len, "$.value2", buf,
-                       sizeof(buf)) > 0) {
-    free(s_config.value2);
-    s_config.value2 = strdup(buf);
-    changed = true;
-  }
-  return changed;
-}
-
-// Parse HTTP requests, return authenticated user or NULL
-static struct user *getuser(struct mg_http_message *hm) {
-  // In production, make passwords strong and tokens randomly generated
-  // In this example, user list is kept in RAM. In production, it can
-  // be backed by file, database, or some other method.
-  static struct user users[] = {
-      {"admin", "admin", "admin_token"},
-      {"user1", "pass1", "user1_token"},
-      {"user2", "pass2", "user2_token"},
-      {NULL, NULL, NULL},
-  };
-  char user[256], pass[256];
-  struct user *u;
-  mg_http_creds(hm, user, sizeof(user), pass, sizeof(pass));
-  if (user[0] != '\0' && pass[0] != '\0') {
-    // Both user and password is set, search by user/password
-    for (u = users; u->name != NULL; u++)
-      if (strcmp(user, u->name) == 0 && strcmp(pass, u->pass) == 0) return u;
-  } else if (user[0] == '\0') {
-    // Only password is set, search by token
-    for (u = users; u->name != NULL; u++)
-      if (strcmp(pass, u->token) == 0) return u;
-  }
-  return NULL;
-}
-
-// Notify all config watchers about the config change
-static void notify_config_change(struct mg_mgr *mgr) {
-  struct mg_connection *c;
-  char *s = stringify_config(&s_config);
-  for (c = mgr->conns; c != NULL; c = c->next) {
-    if (c->label[0] == 'W') mg_http_printf_chunk(c, "%s\n", s);
-  }
-  free(s);
-}
-
-// HTTP request handler function
-static void cb(struct mg_connection *c, int ev, void *ev_data, void *fn_data) {
-  if (ev == MG_EV_HTTP_MSG) {
-    struct mg_http_message *hm = (struct mg_http_message *) ev_data;
-    struct user *u = getuser(hm);
-    // LOG(LL_INFO, ("%p [%.*s] auth %s", c->fd, (int) hm->uri.len, hm->uri.ptr,
-    // u ? u->name : "NULL"));
-    if (u == NULL && mg_http_match_uri(hm, "/api/#")) {
-      // All URIs starting with /api/ must be authenticated
-      mg_printf(c, "%s", "HTTP/1.1 403 Denied\r\nContent-Length: 0\r\n\r\n");
-    } else if (mg_http_match_uri(hm, "/api/config/get")) {
-      char *s = stringify_config(&s_config);
-      mg_printf(c, "HTTP/1.1 200 OK\r\nContent-Length: %d\r\n\r\n%s\n",
-                (int) strlen(s) + 1, s);
-      free(s);
-    } else if (mg_http_match_uri(hm, "/api/config/set")) {
-      // Admins only
-      if (strcmp(u->name, "admin") == 0) {
-        if (update_config(hm, &s_config)) notify_config_change(fn_data);
-        mg_printf(c, "HTTP/1.1 200 OK\r\nContent-Length: 0\r\n\r\n");
-      } else {
-        mg_printf(c, "%s", "HTTP/1.1 403 Denied\r\nContent-Length: 0\r\n\r\n");
-      }
-    } else if (mg_http_match_uri(hm, "/api/config/watch")) {
-      c->label[0] = 'W';  // Mark ourselves as a config watcher
-      mg_printf(c, "HTTP/1.1 200 OK\r\nTransfer-Encoding: chunked\r\n\r\n");
-    } else if (mg_http_match_uri(hm, "/api/video1")) {
-      c->label[0] = 'S';  // Mark that connection as live streamer
-      mg_printf(
-          c, "%s",
-          "HTTP/1.0 200 OK\r\n"
-          "Cache-Control: no-cache\r\n"
-          "Pragma: no-cache\r\nExpires: Thu, 01 Dec 1994 16:00:00 GMT\r\n"
-          "Content-Type: multipart/x-mixed-replace; boundary=--foo\r\n\r\n");
-    } else if (mg_http_match_uri(hm, "/api/log/static")) {
-      mg_http_serve_file(c, hm, "log.txt", "text/plain", "");
-    } else if (mg_http_match_uri(hm, "/api/log/live")) {
-      c->label[0] = 'L';  // Mark that connection as live log listener
-      mg_printf(c, "HTTP/1.1 200 OK\r\nTransfer-Encoding: chunked\r\n\r\n");
-    } else if (mg_http_match_uri(hm, "/api/login")) {
-      mg_printf(c, "HTTP/1.1 200 OK\r\nTransfer-Encoding: chunked\r\n\r\n");
-      mg_http_printf_chunk(c, "{\"user\":\"%s\",\"token\":\"%s\"}\n", u->name,
-                           u->token);
-      mg_http_printf_chunk(c, "");
-    } else {
-      struct mg_http_serve_opts opts = {.root_dir = "web_root"};
-      mg_http_serve_dir(c, ev_data, &opts);
-    }
-  }
-}
-
-// The image stream is simulated by sending MJPEG frames specified by the
-// "files" array of file names.
-static void broadcast_mjpeg_frame(struct mg_mgr *mgr) {
-  const char *files[] = {"images/1.jpg", "images/2.jpg", "images/3.jpg",
-                         "images/4.jpg", "images/5.jpg", "images/6.jpg"};
-  size_t nfiles = sizeof(files) / sizeof(files[0]);
-  static size_t i;
-  const char *path = files[i++ % nfiles];
-  size_t size = mg_file_size(path);
-  char *data = mg_file_read(path);  // Read next file
-  struct mg_connection *c;
-  for (c = mgr->conns; c != NULL; c = c->next) {
-    if (c->label[0] != 'S') continue;         // Skip non-stream connections
-    if (data == NULL || size == 0) continue;  // Skip on file read error
-    mg_printf(c,
-              "--foo\r\nContent-Type: image/jpeg\r\n"
-              "Content-Length: %lu\r\n\r\n",
-              (unsigned long) size);
-    mg_send(c, data, size);
-    mg_send(c, "\r\n", 2);
-  }
-  free(data);
-}
-
-static void mjpeg_cb(void *arg) {
-  broadcast_mjpeg_frame(arg);
-}
-
-static void log_message(const char *filename, const char *message) {
-  FILE *fp = fopen(filename, "a");
-  if (fp != NULL) {
-    fprintf(fp, "%s", message);
-    fclose(fp);
-  }
-}
-
-static void broadcast_message(struct mg_mgr *mgr, const char *message) {
-  struct mg_connection *c;
-  for (c = mgr->conns; c != NULL; c = c->next) {
-    if (c->label[0] == 'L') mg_http_printf_chunk(c, "%s", message);
-  }
-}
-
-// Timer function - called periodically.
-// Prepare log message. Save it to a file, and broadcast.
-static void log_cb(void *arg) {
-  char buf[64];
-  snprintf(buf, sizeof(buf), "Time is: %lu\n", (unsigned long) time(NULL));
-  log_message("log.txt", buf);
-  broadcast_message(arg, buf);
-}
-
-int main(void) {
-  struct mg_mgr mgr;
-  struct mg_timer t1, t2;
-
-  mg_mgr_init(&mgr);
-  mg_http_listen(&mgr, "http://localhost:8000", cb, &mgr);
-  mg_timer_init(&t1, 500, MG_TIMER_REPEAT, mjpeg_cb, &mgr);
-  mg_timer_init(&t2, 1000, MG_TIMER_REPEAT, log_cb, &mgr);
-  for (;;) mg_mgr_poll(&mgr, 50);
-  mg_timer_free(&t1);
-  mg_timer_free(&t2);
-  mg_mgr_free(&mgr);
-
-  return 0;
-}
@@ -1,981 +0,0 @@
-// Copyright (c) 2018-2020 Cesanta Software Limited
-// All rights reserved
-//
-// Permission is hereby granted, free of charge, to any person obtaining a copy
-// of this software and associated documentation files (the "Software"), to deal
-// in the Software without restriction, including without limitation the rights
-// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-// copies of the Software, and to permit persons to whom the Software is
-// furnished to do so, subject to the following conditions:
-//
-// The above copyright notice and this permission notice shall be included in
-// all copies or substantial portions of the Software.
-//
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-// SOFTWARE.
-
-#include "mjson.h"
-
-#if !defined(_MSC_VER) || _MSC_VER >= 1700
-#else
-#define va_copy(x, y) (x) = (y)
-#define snprintf _snprintf
-#define alloca _alloca
-#endif
-
-static int mjson_esc(int c, int esc) {
-  const char *p, *esc1 = "\b\f\n\r\t\\\"", *esc2 = "bfnrt\\\"";
-  for (p = esc ? esc1 : esc2; *p != '\0'; p++) {
-    if (*p == c) return esc ? esc2[p - esc1] : esc1[p - esc2];
-  }
-  return 0;
-}
-
-static int mjson_pass_string(const char *s, int len) {
-  int i;
-  for (i = 0; i < len; i++) {
-    if (s[i] == '\\' && i + 1 < len && mjson_esc(s[i + 1], 1)) {
-      i++;
-    } else if (s[i] == '\0') {
-      return MJSON_ERROR_INVALID_INPUT;
-    } else if (s[i] == '"') {
-      return i;
-    }
-  }
-  return MJSON_ERROR_INVALID_INPUT;
-}
-
-int mjson(const char *s, int len, mjson_cb_t cb, void *ud) {
-  enum { S_VALUE, S_KEY, S_COLON, S_COMMA_OR_EOO } expecting = S_VALUE;
-  unsigned char nesting[MJSON_MAX_DEPTH];
-  int i, depth = 0;
-#define MJSONCALL(ev) \
-  if (cb != NULL && cb(ev, s, start, i - start + 1, ud)) return i + 1;
-
-// In the ascii table, the distance between `[` and `]` is 2.
-// Ditto for `{` and `}`. Hence +2 in the code below.
-#define MJSONEOO()                                                     \
-  do {                                                                 \
-    if (c != nesting[depth - 1] + 2) return MJSON_ERROR_INVALID_INPUT; \
-    depth--;                                                           \
-    if (depth == 0) {                                                  \
-      MJSONCALL(tok);                                                  \
-      return i + 1;                                                    \
-    }                                                                  \
-  } while (0)
-
-  for (i = 0; i < len; i++) {
-    int start = i;
-    unsigned char c = ((unsigned char *) s)[i];
-    int tok = c;
-    if (c == ' ' || c == '\t' || c == '\n' || c == '\r') continue;
-    // printf("- %c [%.*s] %d %d\n", c, i, s, depth, expecting);
-    switch (expecting) {
-      case S_VALUE:
-        if (c == '{') {
-          if (depth >= (int) sizeof(nesting)) return MJSON_ERROR_TOO_DEEP;
-          nesting[depth++] = c;
-          expecting = S_KEY;
-          break;
-        } else if (c == '[') {
-          if (depth >= (int) sizeof(nesting)) return MJSON_ERROR_TOO_DEEP;
-          nesting[depth++] = c;
-          break;
-        } else if (c == ']' && depth > 0) {  // Empty array
-          MJSONEOO();
-        } else if (c == 't' && i + 3 < len && memcmp(&s[i], "true", 4) == 0) {
-          i += 3;
-          tok = MJSON_TOK_TRUE;
-        } else if (c == 'n' && i + 3 < len && memcmp(&s[i], "null", 4) == 0) {
-          i += 3;
-          tok = MJSON_TOK_NULL;
-        } else if (c == 'f' && i + 4 < len && memcmp(&s[i], "false", 5) == 0) {
-          i += 4;
-          tok = MJSON_TOK_FALSE;
-        } else if (c == '-' || ((c >= '0' && c <= '9'))) {
-          char *end = NULL;
-          strtod(&s[i], &end);
-          if (end != NULL) i += end - &s[i] - 1;
-          tok = MJSON_TOK_NUMBER;
-        } else if (c == '"') {
-          int n = mjson_pass_string(&s[i + 1], len - i - 1);
-          if (n < 0) return n;
-          i += n + 1;
-          tok = MJSON_TOK_STRING;
-        } else {
-          return MJSON_ERROR_INVALID_INPUT;
-        }
-        if (depth == 0) {
-          MJSONCALL(tok);
-          return i + 1;
-        }
-        expecting = S_COMMA_OR_EOO;
-        break;
-
-      case S_KEY:
-        if (c == '"') {
-          int n = mjson_pass_string(&s[i + 1], len - i - 1);
-          if (n < 0) return n;
-          i += n + 1;
-          tok = MJSON_TOK_KEY;
-          expecting = S_COLON;
-        } else if (c == '}') {  // Empty object
-          MJSONEOO();
-          expecting = S_COMMA_OR_EOO;
-        } else {
-          return MJSON_ERROR_INVALID_INPUT;
-        }
-        break;
-
-      case S_COLON:
-        if (c == ':') {
-          expecting = S_VALUE;
-        } else {
-          return MJSON_ERROR_INVALID_INPUT;
-        }
-        break;
-
-      case S_COMMA_OR_EOO:
-        if (depth <= 0) return MJSON_ERROR_INVALID_INPUT;
-        if (c == ',') {
-          expecting = (nesting[depth - 1] == '{') ? S_KEY : S_VALUE;
-        } else if (c == ']' || c == '}') {
-          MJSONEOO();
-        } else {
-          return MJSON_ERROR_INVALID_INPUT;
-        }
-        break;
-    }
-    MJSONCALL(tok);
-  }
-  return MJSON_ERROR_INVALID_INPUT;
-}
-
-struct msjon_get_data {
-  const char *path;     // Lookup json path
-  int pos;              // Current path index
-  int d1;               // Current depth of traversal
-  int d2;               // Expected depth of traversal
-  int i1;               // Index in an array
-  int i2;               // Expected index in an array
-  int obj;              // If the value is array/object, offset where it starts
-  const char **tokptr;  // Destination
-  int *toklen;          // Destination length
-  int tok;              // Returned token
-};
-
-static int mjson_plen(const char *s) {
-  int i = 0;
-  while (s[i] != '\0' && s[i] != '.' && s[i] != '[') i++;
-  return i;
-}
-
-static int mjson_get_cb(int tok, const char *s, int off, int len, void *ud) {
-  struct msjon_get_data *data = (struct msjon_get_data *) ud;
-  // printf("--> %2x %2d %2d %2d %2d\t'%s'\t'%.*s'\t\t'%.*s'\n", tok, data->d1,
-  // data->d2, data->i1, data->i2, data->path + data->pos, off, s, len,
-  // s + off);
-  if (data->tok != MJSON_TOK_INVALID) return 1;  // Found
-
-  if (tok == '{') {
-    if (!data->path[data->pos] && data->d1 == data->d2) data->obj = off;
-    data->d1++;
-  } else if (tok == '[') {
-    if (data->d1 == data->d2 && data->path[data->pos] == '[') {
-      data->i1 = 0;
-      data->i2 = (int) strtod(&data->path[data->pos + 1], NULL);
-      if (data->i1 == data->i2) {
-        data->d2++;
-        data->pos += 3;
-      }
-    }
-    if (!data->path[data->pos] && data->d1 == data->d2) data->obj = off;
-    data->d1++;
-  } else if (tok == ',') {
-    if (data->d1 == data->d2 + 1) {
-      data->i1++;
-      if (data->i1 == data->i2) {
-        while (data->path[data->pos] != ']') data->pos++;
-        data->pos++;
-        data->d2++;
-      }
-    }
-  } else if (tok == MJSON_TOK_KEY && data->d1 == data->d2 + 1 &&
-             data->path[data->pos] == '.' && s[off] == '"' &&
-             s[off + len - 1] == '"' &&
-             mjson_plen(&data->path[data->pos + 1]) == len - 2 &&
-             !memcmp(s + off + 1, &data->path[data->pos + 1], len - 2)) {
-    data->d2++;
-    data->pos += len - 1;
-  } else if (tok == MJSON_TOK_KEY && data->d1 == data->d2) {
-    return 1;  // Exhausted path, not found
-  } else if (tok == '}' || tok == ']') {
-    data->d1--;
-    // data->d2--;
-    if (!data->path[data->pos] && data->d1 == data->d2 && data->obj != -1) {
-      data->tok = tok - 2;
-      if (data->tokptr) *data->tokptr = s + data->obj;
-      if (data->toklen) *data->toklen = off - data->obj + 1;
-      return 1;
-    }
-  } else if (MJSON_TOK_IS_VALUE(tok)) {
-    // printf("TOK --> %d\n", tok);
-    if (data->d1 == data->d2 && !data->path[data->pos]) {
-      data->tok = tok;
-      if (data->tokptr) *data->tokptr = s + off;
-      if (data->toklen) *data->toklen = len;
-      return 1;
-    }
-  }
-  return 0;
-}
-
-enum mjson_tok mjson_find(const char *s, int len, const char *jp,
-                          const char **tokptr, int *toklen) {
-  struct msjon_get_data data = {jp, 1,  0,      0,      0,
-                                0,  -1, tokptr, toklen, MJSON_TOK_INVALID};
-  if (jp[0] != '$') return MJSON_TOK_INVALID;
-  if (mjson(s, len, mjson_get_cb, &data) < 0) return MJSON_TOK_INVALID;
-  return (enum mjson_tok) data.tok;
-}
-
-int mjson_get_number(const char *s, int len, const char *path, double *v) {
-  const char *p;
-  int tok, n;
-  if ((tok = mjson_find(s, len, path, &p, &n)) == MJSON_TOK_NUMBER) {
-    if (v != NULL) *v = strtod(p, NULL);
-  }
-  return tok == MJSON_TOK_NUMBER ? 1 : 0;
-}
-
-int mjson_get_bool(const char *s, int len, const char *path, int *v) {
-  int tok = mjson_find(s, len, path, NULL, NULL);
-  if (tok == MJSON_TOK_TRUE && v != NULL) *v = 1;
-  if (tok == MJSON_TOK_FALSE && v != NULL) *v = 0;
-  return tok == MJSON_TOK_TRUE || tok == MJSON_TOK_FALSE ? 1 : 0;
-}
-
-static int mjson_unescape(const char *s, int len, char *to, int n) {
-  int i, j;
-  for (i = 0, j = 0; i < len && j < n; i++, j++) {
-    if (s[i] == '\\' && i + 1 < len) {
-      int c = mjson_esc(s[i + 1], 0);
-      if (c == 0) return -1;
-      to[j] = c;
-      i++;
-    } else {
-      to[j] = s[i];
-    }
-  }
-  if (j >= n) return -1;
-  if (n > 0) to[j] = '\0';
-  return j;
-}
-
-int mjson_get_string(const char *s, int len, const char *path, char *to,
-                     int n) {
-  const char *p;
-  int sz;
-  if (mjson_find(s, len, path, &p, &sz) != MJSON_TOK_STRING) return -1;
-  return mjson_unescape(p + 1, sz - 2, to, n);
-}
-
-int mjson_get_hex(const char *s, int len, const char *x, char *to, int n) {
-  const char *p;
-  int i, j, sz;
-  if (mjson_find(s, len, x, &p, &sz) != MJSON_TOK_STRING) return -1;
-  for (i = j = 0; i < sz - 3 && j < n; i += 2, j++) {
-#define HEXTOI(x) (x >= '0' && x <= '9' ? x - '0' : x - 'W')
-    unsigned char a = *(const unsigned char *) (p + i + 1);
-    unsigned char b = *(const unsigned char *) (p + i + 2);
-    ((unsigned char *) to)[j] = (HEXTOI(a) << 4) | HEXTOI(b);
-  }
-  if (j < n) to[j] = '\0';
-  return j;
-}
-
-#if MJSON_ENABLE_BASE64
-static int mjson_base64rev(int c) {
-  if (c >= 'A' && c <= 'Z') {
-    return c - 'A';
-  } else if (c >= 'a' && c <= 'z') {
-    return c + 26 - 'a';
-  } else if (c >= '0' && c <= '9') {
-    return c + 52 - '0';
-  } else if (c == '+') {
-    return 62;
-  } else if (c == '/') {
-    return 63;
-  } else {
-    return 64;
-  }
-}
-
-int mjson_base64_dec(const char *src, int n, char *dst, int dlen) {
-  const char *end = src + n;
-  int len = 0;
-  while (src + 3 < end && len < dlen) {
-    int a = mjson_base64rev(src[0]), b = mjson_base64rev(src[1]),
-        c = mjson_base64rev(src[2]), d = mjson_base64rev(src[3]);
-    dst[len++] = (a << 2) | (b >> 4);
-    if (src[2] != '=' && len < dlen) {
-      dst[len++] = (b << 4) | (c >> 2);
-      if (src[3] != '=' && len < dlen) {
-        dst[len++] = (c << 6) | d;
-      }
-    }
-    src += 4;
-  }
-  if (len < dlen) dst[len] = '\0';
-  return len;
-}
-
-int mjson_get_base64(const char *s, int len, const char *path, char *to,
-                     int n) {
-  const char *p;
-  int sz;
-  if (mjson_find(s, len, path, &p, &sz) != MJSON_TOK_STRING) return 0;
-  return mjson_base64_dec(p + 1, sz - 2, to, n);
-}
-#endif  // MJSON_ENABLE_BASE64
-
-#if MJSON_ENABLE_NEXT
-struct nextdata {
-  int off, len, depth, t, vo, arrayindex;
-  int *koff, *klen, *voff, *vlen, *vtype;
-};
-
-static int next_cb(int tok, const char *s, int off, int len, void *ud) {
-  struct nextdata *d = (struct nextdata *) ud;
-  // int i;
-  switch (tok) {
-    case '{':
-    case '[':
-      if (d->depth == 0 && tok == '[') d->arrayindex = 0;
-      if (d->depth == 1 && off > d->off) {
-        d->vo = off;
-        d->t = tok == '{' ? MJSON_TOK_OBJECT : MJSON_TOK_ARRAY;
-        if (d->voff) *d->voff = off;
-        if (d->vtype) *d->vtype = d->t;
-      }
-      d->depth++;
-      break;
-    case '}':
-    case ']':
-      d->depth--;
-      if (d->depth == 1 && d->vo) {
-        d->len = off + len;
-        if (d->vlen) *d->vlen = d->len - d->vo;
-        if (d->arrayindex >= 0) {
-          if (d->koff) *d->koff = d->arrayindex;  // koff holds array index
-          if (d->klen) *d->klen = 0;              // klen holds 0
-        }
-        return 1;
-      }
-      if (d->depth == 1 && d->arrayindex >= 0) d->arrayindex++;
-      break;
-    case ',':
-    case ':':
-      break;
-    case MJSON_TOK_KEY:
-      if (d->depth == 1 && d->off < off) {
-        if (d->koff) *d->koff = off;  // And report back to the user
-        if (d->klen) *d->klen = len;  // If we have to
-      }
-      break;
-    default:
-      if (d->depth != 1) break;
-      // If we're iterating over the array
-      if (off > d->off) {
-        d->len = off + len;
-        if (d->vlen) *d->vlen = len;    // value length
-        if (d->voff) *d->voff = off;    // value offset
-        if (d->vtype) *d->vtype = tok;  // value type
-        if (d->arrayindex >= 0) {
-          if (d->koff) *d->koff = d->arrayindex;  // koff holds array index
-          if (d->klen) *d->klen = 0;              // klen holds 0
-        }
-        return 1;
-      }
-      if (d->arrayindex >= 0) d->arrayindex++;
-      break;
-  }
-  (void) s;
-  return 0;
-}
-
-int mjson_next(const char *s, int n, int off, int *koff, int *klen, int *voff,
-               int *vlen, int *vtype) {
-  struct nextdata d = {off, 0, 0, 0, 0, -1, koff, klen, voff, vlen, vtype};
-  mjson(s, n, next_cb, &d);
-  return d.len;
-}
-#endif
-
-#if MJSON_ENABLE_PRINT
-int mjson_print_fixed_buf(const char *ptr, int len, void *fndata) {
-  struct mjson_fixedbuf *fb = (struct mjson_fixedbuf *) fndata;
-  int i, left = fb->size - 1 - fb->len;
-  if (left < len) len = left;
-  for (i = 0; i < len; i++) fb->ptr[fb->len + i] = ptr[i];
-  fb->len += len;
-  fb->ptr[fb->len] = '\0';
-  return len;
-}
-
-int mjson_print_dynamic_buf(const char *ptr, int len, void *fndata) {
-  char *s, *buf = *(char **) fndata;
-  int curlen = buf == NULL ? 0 : strlen(buf);
-  if ((s = (char *) realloc(buf, curlen + len + 1)) == NULL) {
-    return 0;
-  } else {
-    memcpy(s + curlen, ptr, len);
-    s[curlen + len] = '\0';
-    *(char **) fndata = s;
-    return len;
-  }
-}
-
-int mjson_print_null(const char *ptr, int len, void *userdata) {
-  (void) ptr;
-  (void) userdata;
-  return len;
-}
-
-int mjson_print_file(const char *ptr, int len, void *userdata) {
-  return fwrite(ptr, 1, len, (FILE *) userdata);
-}
-
-int mjson_print_buf(mjson_print_fn_t fn, void *fndata, const char *buf,
-                    int len) {
-  return fn(buf, len, fndata);
-}
-
-int mjson_print_int(mjson_print_fn_t fn, void *fndata, int value,
-                    int is_signed) {
-  char buf[20];
-  int len = snprintf(buf, sizeof(buf), is_signed ? "%d" : "%u", value);
-  return fn(buf, len, fndata);
-}
-
-int mjson_print_long(mjson_print_fn_t fn, void *fndata, long value,
-                     int is_signed) {
-  char buf[20];
-  const char *fmt = (is_signed ? "%ld" : "%lu");
-  int len = snprintf(buf, sizeof(buf), fmt, value);
-  return fn(buf, len, fndata);
-}
-
-int mjson_print_dbl(mjson_print_fn_t fn, void *fndata, double d,
-                    const char *fmt) {
-  char buf[40];
-  int n = snprintf(buf, sizeof(buf), fmt, d);
-  return fn(buf, n, fndata);
-}
-
-int mjson_print_str(mjson_print_fn_t fn, void *fndata, const char *s, int len) {
-  int i, n = fn("\"", 1, fndata);
-  for (i = 0; i < len; i++) {
-    char c = mjson_esc(s[i], 1);
-    if (c) {
-      n += fn("\\", 1, fndata);
-      n += fn(&c, 1, fndata);
-    } else {
-      n += fn(&s[i], 1, fndata);
-    }
-  }
-  return n + fn("\"", 1, fndata);
-}
-
-#if MJSON_ENABLE_BASE64
-int mjson_print_b64(mjson_print_fn_t fn, void *fndata, const unsigned char *s,
-                    int n) {
-  const char *t =
-      "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
-  int i, len = fn("\"", 1, fndata);
-  for (i = 0; i < n; i += 3) {
-    int a = s[i], b = i + 1 < n ? s[i + 1] : 0, c = i + 2 < n ? s[i + 2] : 0;
-    char buf[4] = {t[a >> 2], t[(a & 3) << 4 | (b >> 4)], '=', '='};
-    if (i + 1 < n) buf[2] = t[(b & 15) << 2 | (c >> 6)];
-    if (i + 2 < n) buf[3] = t[c & 63];
-    len += fn(buf, sizeof(buf), fndata);
-  }
-  return len + fn("\"", 1, fndata);
-}
-#endif /* MJSON_ENABLE_BASE64 */
-
-int mjson_vprintf(mjson_print_fn_t fn, void *fndata, const char *fmt,
-                  va_list xap) {
-  int i = 0, n = 0;
-  va_list ap;
-  va_copy(ap, xap);
-  while (fmt[i] != '\0') {
-    if (fmt[i] == '%') {
-      char fc = fmt[++i];
-      int is_long = 0;
-      if (fc == 'l') {
-        is_long = 1;
-        fc = fmt[i + 1];
-      }
-      if (fc == 'Q') {
-        char *buf = va_arg(ap, char *);
-        n += mjson_print_str(fn, fndata, buf ? buf : "", buf ? strlen(buf) : 0);
-      } else if (strncmp(&fmt[i], ".*Q", 3) == 0) {
-        int len = va_arg(ap, int);
-        char *buf = va_arg(ap, char *);
-        n += mjson_print_str(fn, fndata, buf, len);
-        i += 2;
-      } else if (fc == 'd' || fc == 'u') {
-        int is_signed = (fc == 'd');
-        if (is_long) {
-          long val = va_arg(ap, long);
-          n += mjson_print_long(fn, fndata, val, is_signed);
-          i++;
-        } else {
-          int val = va_arg(ap, int);
-          n += mjson_print_int(fn, fndata, val, is_signed);
-        }
-      } else if (fc == 'B') {
-        const char *s = va_arg(ap, int) ? "true" : "false";
-        n += mjson_print_buf(fn, fndata, s, strlen(s));
-      } else if (fc == 's') {
-        char *buf = va_arg(ap, char *);
-        n += mjson_print_buf(fn, fndata, buf, strlen(buf));
-      } else if (strncmp(&fmt[i], ".*s", 3) == 0) {
-        int len = va_arg(ap, int);
-        char *buf = va_arg(ap, char *);
-        n += mjson_print_buf(fn, fndata, buf, len);
-        i += 2;
-      } else if (fc == 'g') {
-        n += mjson_print_dbl(fn, fndata, va_arg(ap, double), "%g");
-      } else if (fc == 'f') {
-        n += mjson_print_dbl(fn, fndata, va_arg(ap, double), "%f");
-#if MJSON_ENABLE_BASE64
-      } else if (fc == 'V') {
-        int len = va_arg(ap, int);
-        const char *buf = va_arg(ap, const char *);
-        n += mjson_print_b64(fn, fndata, (unsigned char *) buf, len);
-#endif
-      } else if (fc == 'H') {
-        const char *hex = "0123456789abcdef";
-        int i, len = va_arg(ap, int);
-        const unsigned char *p = va_arg(ap, const unsigned char *);
-        n += fn("\"", 1, fndata);
-        for (i = 0; i < len; i++) {
-          n += fn(&hex[(p[i] >> 4) & 15], 1, fndata);
-          n += fn(&hex[p[i] & 15], 1, fndata);
-        }
-        n += fn("\"", 1, fndata);
-      } else if (fc == 'M') {
-        mjson_vprint_fn_t vfn = va_arg(ap, mjson_vprint_fn_t);
-        n += vfn(fn, fndata, &ap);
-      }
-      i++;
-    } else {
-      n += mjson_print_buf(fn, fndata, &fmt[i++], 1);
-    }
-  }
-  va_end(xap);
-  va_end(ap);
-  return n;
-}
-
-int mjson_printf(mjson_print_fn_t fn, void *fndata, const char *fmt, ...) {
-  va_list ap;
-  int len;
-  va_start(ap, fmt);
-  len = mjson_vprintf(fn, fndata, fmt, ap);
-  va_end(ap);
-  return len;
-}
-#endif /* MJSON_ENABLE_PRINT */
-
-#if MJSON_IMPLEMENT_STRTOD
-static inline int is_digit(int c) {
-  return c >= '0' && c <= '9';
-}
-
-/* NOTE: strtod() implementation by Yasuhiro Matsumoto. */
-double strtod(const char *str, char **end) {
-  double d = 0.0;
-  int sign = 1, n = 0;
-  const char *p = str, *a = str;
-
-  /* decimal part */
-  if (*p == '-') {
-    sign = -1;
-    ++p;
-  } else if (*p == '+')
-    ++p;
-  if (is_digit(*p)) {
-    d = (double) (*p++ - '0');
-    while (*p && is_digit(*p)) {
-      d = d * 10.0 + (double) (*p - '0');
-      ++p;
-      ++n;
-    }
-    a = p;
-  } else if (*p != '.')
-    goto done;
-  d *= sign;
-
-  /* fraction part */
-  if (*p == '.') {
-    double f = 0.0;
-    double base = 0.1;
-    ++p;
-
-    if (is_digit(*p)) {
-      while (*p && is_digit(*p)) {
-        f += base * (*p - '0');
-        base /= 10.0;
-        ++p;
-        ++n;
-      }
-    }
-    d += f * sign;
-    a = p;
-  }
-
-  /* exponential part */
-  if ((*p == 'E') || (*p == 'e')) {
-    int e = 0;
-    ++p;
-
-    sign = 1;
-    if (*p == '-') {
-      sign = -1;
-      ++p;
-    } else if (*p == '+')
-      ++p;
-
-    if (is_digit(*p)) {
-      while (*p == '0') ++p;
-      e = (int) (*p++ - '0');
-      while (*p && is_digit(*p)) {
-        e = e * 10 + (int) (*p - '0');
-        ++p;
-      }
-      e *= sign;
-    } else if (!is_digit(*(a - 1))) {
-      a = str;
-      goto done;
-    } else if (*p == 0)
-      goto done;
-
-    if (d == 2.2250738585072011 && e == -308) {
-      d = 0.0;
-      a = p;
-      goto done;
-    }
-    if (d == 2.2250738585072012 && e <= -308) {
-      d *= 1.0e-308;
-      a = p;
-      goto done;
-    }
-    {
-      int i;
-      for (i = 0; i < 10; i++) d *= 10;
-    }
-    a = p;
-  } else if (p > str && !is_digit(*(p - 1))) {
-    a = str;
-    goto done;
-  }
-
-done:
-  if (end) *end = (char *) a;
-  return d;
-}
-#endif
-
-#if MJSON_ENABLE_MERGE
-int mjson_merge(const char *s, int n, const char *s2, int n2,
-                mjson_print_fn_t fn, void *userdata) {
-  int koff, klen, voff, vlen, t, t2, k, off = 0, len = 0, comma = 0;
-  if (n < 2) return len;
-  len += fn("{", 1, userdata);
-  while ((off = mjson_next(s, n, off, &koff, &klen, &voff, &vlen, &t)) != 0) {
-#if !defined(_MSC_VER) || _MSC_VER >= 1700
-    char path[klen + 1];
-#else
-    char *path = (char *) alloca(klen + 1);
-#endif
-    const char *val;
-    memcpy(path, "$.", 2);
-    memcpy(path + 2, s + koff + 1, klen - 2);
-    path[klen] = '\0';
-    if ((t2 = mjson_find(s2, n2, path, &val, &k)) != MJSON_TOK_INVALID) {
-      if (t2 == MJSON_TOK_NULL) continue;  // null deletes the key
-    } else {
-      val = s + voff;  // Key is not found in the update. Copy the old value.
-    }
-    if (comma) len += fn(",", 1, userdata);
-    len += fn(s + koff, klen, userdata);
-    len += fn(":", 1, userdata);
-    if (t == MJSON_TOK_OBJECT && t2 == MJSON_TOK_OBJECT) {
-      len += mjson_merge(s + voff, vlen, val, k, fn, userdata);
-    } else {
-      if (t2 != MJSON_TOK_INVALID) vlen = k;
-      len += fn(val, vlen, userdata);
-    }
-    comma = 1;
-  }
-  // Add missing keys
-  off = 0;
-  while ((off = mjson_next(s2, n2, off, &koff, &klen, &voff, &vlen, &t)) != 0) {
-#if !defined(_MSC_VER) || _MSC_VER >= 1700
-    char path[klen + 1];
-#else
-    char *path = (char *) alloca(klen + 1);
-#endif
-    const char *val;
-    if (t == MJSON_TOK_NULL) continue;
-    memcpy(path, "$.", 2);
-    memcpy(path + 2, s2 + koff + 1, klen - 2);
-    path[klen] = '\0';
-    if (mjson_find(s, n, path, &val, &vlen) != MJSON_TOK_INVALID) continue;
-    if (comma) len += fn(",", 1, userdata);
-    len += fn(s2 + koff, klen, userdata);
-    len += fn(":", 1, userdata);
-    len += fn(s2 + voff, vlen, userdata);
-    comma = 1;
-  }
-  len += fn("}", 1, userdata);
-  return len;
-}
-#endif  // MJSON_ENABLE_MERGE
-
-#if MJSON_ENABLE_PRETTY
-struct prettydata {
-  int level;
-  int len;
-  int prev;
-  const char *pad;
-  int padlen;
-  mjson_print_fn_t fn;
-  void *userdata;
-};
-
-static int pretty_cb(int ev, const char *s, int off, int len, void *ud) {
-  struct prettydata *d = (struct prettydata *) ud;
-  int i;
-  switch (ev) {
-    case '{':
-    case '[':
-      d->level++;
-      d->len += d->fn(s + off, len, d->userdata);
-      break;
-    case '}':
-    case ']':
-      d->level--;
-      if (d->prev != '[' && d->prev != '{' && d->padlen > 0) {
-        d->len += d->fn("\n", 1, d->userdata);
-        for (i = 0; i < d->level; i++)
-          d->len += d->fn(d->pad, d->padlen, d->userdata);
-      }
-      d->len += d->fn(s + off, len, d->userdata);
-      break;
-    case ',':
-      d->len += d->fn(s + off, len, d->userdata);
-      if (d->padlen > 0) {
-        d->len += d->fn("\n", 1, d->userdata);
-        for (i = 0; i < d->level; i++)
-          d->len += d->fn(d->pad, d->padlen, d->userdata);
-      }
-      break;
-    case ':':
-      d->len += d->fn(s + off, len, d->userdata);
-      if (d->padlen > 0) d->len += d->fn(" ", 1, d->userdata);
-      break;
-    case MJSON_TOK_KEY:
-      if (d->prev == '{' && d->padlen > 0) {
-        d->len += d->fn("\n", 1, d->userdata);
-        for (i = 0; i < d->level; i++)
-          d->len += d->fn(d->pad, d->padlen, d->userdata);
-      }
-      d->len += d->fn(s + off, len, d->userdata);
-      break;
-    default:
-      if (d->prev == '[' && d->padlen > 0) {
-        d->len += d->fn("\n", 1, d->userdata);
-        for (i = 0; i < d->level; i++)
-          d->len += d->fn(d->pad, d->padlen, d->userdata);
-      }
-      d->len += d->fn(s + off, len, d->userdata);
-      break;
-  }
-  d->prev = ev;
-  return 0;
-}
-
-int mjson_pretty(const char *s, int n, const char *pad, mjson_print_fn_t fn,
-                 void *userdata) {
-  struct prettydata d = {0, 0, 0, pad, strlen(pad), fn, userdata};
-  if (mjson(s, n, pretty_cb, &d) < 0) return -1;
-  return d.len;
-}
-#endif  // MJSON_ENABLE_PRETTY
-
-#if MJSON_ENABLE_RPC
-struct jsonrpc_ctx jsonrpc_default_context;
-struct jsonrpc_userdata {
-  mjson_print_fn_t fn;
-  void *fndata;
-};
-
-int mjson_globmatch(const char *s1, int n1, const char *s2, int n2) {
-  int i = 0, j = 0, ni = 0, nj = 0;
-  while (i < n1 || j < n2) {
-    if (i < n1 && j < n2 && (s1[i] == '?' || s2[j] == s1[i])) {
-      i++, j++;
-    } else if (i < n1 && (s1[i] == '*' || s1[i] == '#')) {
-      ni = i, nj = j + 1, i++;
-    } else if (nj > 0 && nj <= n2 && (s1[i - 1] == '#' || s2[j] != '/')) {
-      i = ni, j = nj;
-    } else {
-      return 0;
-    }
-  }
-  return 1;
-}
-
-static int jsonrpc_printer(const char *buf, int len, void *userdata) {
-  struct jsonrpc_userdata *u = (struct jsonrpc_userdata *) userdata;
-  return u->fn(buf, len, u->fndata);
-}
-
-void jsonrpc_return_errorv(struct jsonrpc_request *r, int code,
-                           const char *message, const char *data_fmt,
-                           va_list ap) {
-  if (r->id_len == 0) return;
-  mjson_printf(r->fn, r->fndata,
-               "{\"id\":%.*s,\"error\":{\"code\":%d,\"message\":%Q", r->id_len,
-               r->id, code, message == NULL ? "" : message);
-  if (data_fmt != NULL) {
-  	mjson_printf(r->fn, r->fndata, ",\"data\":");
-    mjson_vprintf(r->fn, r->fndata, data_fmt, ap);
-  }
-  mjson_printf(r->fn, r->fndata, "}}\n");
-}
-
-void jsonrpc_return_error(struct jsonrpc_request *r, int code,
-                          const char *message, const char *data_fmt, ...) {
-  va_list ap;
-  va_start(ap, data_fmt);
-  jsonrpc_return_errorv(r, code, message, data_fmt, ap);
-  va_end(ap);
-}
-
-void jsonrpc_return_successv(struct jsonrpc_request *r, const char *result_fmt,
-                             va_list ap) {
-  if (r->id_len == 0) return;
-  mjson_printf(r->fn, r->fndata, "{\"id\":%.*s,\"result\":", r->id_len, r->id);
-  if (result_fmt != NULL) {
-    mjson_vprintf(r->fn, r->fndata, result_fmt, ap);
-  } else {
-    mjson_printf(r->fn, r->fndata, "%s", "null");
-  }
-  mjson_printf(r->fn, r->fndata, "}\n");
-}
-
-void jsonrpc_return_success(struct jsonrpc_request *r, const char *result_fmt,
-                            ...) {
-  va_list ap;
-  va_start(ap, result_fmt);
-  jsonrpc_return_successv(r, result_fmt, ap);
-  va_end(ap);
-}
-
-void jsonrpc_ctx_process(struct jsonrpc_ctx *ctx, const char *req, int req_sz,
-                         mjson_print_fn_t fn, void *fndata) {
-  const char *result = NULL, *error = NULL;
-  int result_sz = 0, error_sz = 0;
-  struct jsonrpc_method *m = NULL;
-  struct jsonrpc_userdata d;
-  struct jsonrpc_request r = {req, req_sz,           0,    0,   0, 0, 0,
-                              0,   &jsonrpc_printer, NULL, NULL};
-
-  d.fn = fn;
-  d.fndata = fndata;
-  r.fndata = &d;
-
-  // Is is a response frame?
-  mjson_find(req, req_sz, "$.result", &result, &result_sz);
-  if (result == NULL) mjson_find(req, req_sz, "$.error", &error, &error_sz);
-  if (result_sz > 0 || error_sz > 0) {
-    if (ctx->response_cb != NULL) ctx->response_cb(req, req_sz, ctx->userdata);
-    return;
-  }
-
-  // Method must exist and must be a string
-  if (mjson_find(req, req_sz, "$.method", &r.method, &r.method_len) !=
-      MJSON_TOK_STRING) {
-    mjson_printf(fn, fndata, "{\"error\":{\"code\":-32700,\"message\":%.*Q}}\n",
-                 req_sz, req);
-    ctx->in_len = 0;
-    return;
-  }
-
-  // id and params are optional
-  mjson_find(req, req_sz, "$.id", &r.id, &r.id_len);
-  mjson_find(req, req_sz, "$.params", &r.params, &r.params_len);
-
-  for (m = ctx->methods; m != NULL; m = m->next) {
-    if (mjson_globmatch(m->method, m->method_sz, r.method + 1,
-                        r.method_len - 2) > 0) {
-      if (r.params == NULL) r.params = "";
-      r.userdata = m->cbdata;
-      m->cb(&r);
-      break;
-    }
-  }
-  if (m == NULL) {
-    jsonrpc_return_error(&r, JSONRPC_ERROR_NOT_FOUND, "method not found", NULL);
-  }
-}
-
-static int jsonrpc_print_methods(mjson_print_fn_t fn, void *fndata,
-                                 va_list *ap) {
-  struct jsonrpc_ctx *ctx = va_arg(*ap, struct jsonrpc_ctx *);
-  struct jsonrpc_method *m;
-  int len = 0;
-  for (m = ctx->methods; m != NULL; m = m->next) {
-    if (m != ctx->methods) len += mjson_print_buf(fn, fndata, ",", 1);
-    len += mjson_print_str(fn, fndata, m->method, strlen(m->method));
-  }
-  return len;
-}
-
-static void rpclist(struct jsonrpc_request *r) {
-  jsonrpc_return_success(r, "[%M]", jsonrpc_print_methods, r->userdata);
-}
-
-void jsonrpc_ctx_init(struct jsonrpc_ctx *ctx, mjson_print_fn_t response_cb,
-                      void *userdata) {
-  ctx->response_cb = response_cb;
-  ctx->userdata = userdata;
-  jsonrpc_ctx_export(ctx, MJSON_RPC_LIST_NAME, rpclist, ctx);
-}
-
-void jsonrpc_ctx_process_byte(struct jsonrpc_ctx *ctx, unsigned char ch,
-                              mjson_print_fn_t fn, void *p) {
-  if (ctx->in_len >= (int) sizeof(ctx->in)) ctx->in_len = 0;  // Overflow
-  if (ch == '\n') {  // If new line, parse frame
-    if (ctx->in_len > 1) jsonrpc_ctx_process(ctx, ctx->in, ctx->in_len, fn, p);
-    ctx->in_len = 0;
-  } else {
-    ctx->in[ctx->in_len] = ch;  // Append to the buffer
-    ctx->in_len++;
-  }
-}
-
-void jsonrpc_init(mjson_print_fn_t response_cb, void *userdata) {
-  jsonrpc_ctx_init(&jsonrpc_default_context, response_cb, userdata);
-}
-#endif  // MJSON_ENABLE_RPC
@@ -1,220 +0,0 @@
-// Copyright (c) 2018-2020 Cesanta Software Limited
-// All rights reserved
-//
-// Permission is hereby granted, free of charge, to any person obtaining a copy
-// of this software and associated documentation files (the "Software"), to deal
-// in the Software without restriction, including without limitation the rights
-// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-// copies of the Software, and to permit persons to whom the Software is
-// furnished to do so, subject to the following conditions:
-//
-// The above copyright notice and this permission notice shall be included in
-// all copies or substantial portions of the Software.
-//
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-// SOFTWARE.
-
-#ifndef MJSON_H
-#define MJSON_H
-
-#include <stdarg.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-
-#ifndef MJSON_ENABLE_PRINT
-#define MJSON_ENABLE_PRINT 1
-#endif
-
-#ifndef MJSON_ENABLE_RPC
-#define MJSON_ENABLE_RPC 1
-#endif
-
-#ifndef MJSON_ENABLE_BASE64
-#define MJSON_ENABLE_BASE64 1
-#endif
-
-#ifndef MJSON_ENABLE_MERGE
-#define MJSON_ENABLE_MERGE 0
-#elif MJSON_ENABLE_MERGE
-#define MJSON_ENABLE_NEXT 1
-#endif
-
-#ifndef MJSON_ENABLE_PRETTY
-#define MJSON_ENABLE_PRETTY 0
-#elif MJSON_ENABLE_PRETTY
-#define MJSON_ENABLE_NEXT 1
-#endif
-
-#ifndef MJSON_ENABLE_NEXT
-#define MJSON_ENABLE_NEXT 0
-#endif
-
-
-#ifndef MJSON_RPC_IN_BUF_SIZE
-#define MJSON_RPC_IN_BUF_SIZE 256
-#endif
-
-#ifndef MJSON_RPC_LIST_NAME
-#define MJSON_RPC_LIST_NAME "rpc.list"
-#endif
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-enum {
-  MJSON_ERROR_INVALID_INPUT = -1,
-  MJSON_ERROR_TOO_DEEP = -2,
-};
-
-enum mjson_tok {
-  MJSON_TOK_INVALID = 0,
-  MJSON_TOK_KEY = 1,
-  MJSON_TOK_STRING = 11,
-  MJSON_TOK_NUMBER = 12,
-  MJSON_TOK_TRUE = 13,
-  MJSON_TOK_FALSE = 14,
-  MJSON_TOK_NULL = 15,
-  MJSON_TOK_ARRAY = 91,
-  MJSON_TOK_OBJECT = 123,
-};
-#define MJSON_TOK_IS_VALUE(t) ((t) > 10 && (t) < 20)
-
-typedef int (*mjson_cb_t)(int ev, const char *s, int off, int len, void *ud);
-
-#ifndef MJSON_MAX_DEPTH
-#define MJSON_MAX_DEPTH 20
-#endif
-
-int mjson(const char *s, int len, mjson_cb_t cb, void *ud);
-enum mjson_tok mjson_find(const char *s, int len, const char *jp,
-                          const char **tokptr, int *toklen);
-int mjson_get_number(const char *s, int len, const char *path, double *v);
-int mjson_get_bool(const char *s, int len, const char *path, int *v);
-int mjson_get_string(const char *s, int len, const char *path, char *to, int n);
-int mjson_get_hex(const char *s, int len, const char *path, char *to, int n);
-
-#if MJSON_ENABLE_NEXT
-int mjson_next(const char *s, int n, int off, int *koff, int *klen, int *voff,
-               int *vlen, int *vtype);
-#endif
-
-#if MJSON_ENABLE_BASE64
-int mjson_get_base64(const char *s, int len, const char *path, char *to, int n);
-int mjson_base64_dec(const char *src, int n, char *dst, int dlen);
-#endif
-
-#if MJSON_ENABLE_PRINT
-typedef int (*mjson_print_fn_t)(const char *buf, int len, void *userdata);
-typedef int (*mjson_vprint_fn_t)(mjson_print_fn_t, void *, va_list *);
-
-struct mjson_fixedbuf {
-  char *ptr;
-  int size, len;
-};
-
-int mjson_printf(mjson_print_fn_t, void *, const char *fmt, ...);
-int mjson_vprintf(mjson_print_fn_t, void *, const char *fmt, va_list ap);
-int mjson_print_str(mjson_print_fn_t, void *, const char *s, int len);
-int mjson_print_int(mjson_print_fn_t, void *, int value, int is_signed);
-int mjson_print_long(mjson_print_fn_t, void *, long value, int is_signed);
-int mjson_print_buf(mjson_print_fn_t fn, void *, const char *buf, int len);
-
-int mjson_print_null(const char *ptr, int len, void *userdata);
-int mjson_print_file(const char *ptr, int len, void *userdata);
-int mjson_print_fixed_buf(const char *ptr, int len, void *userdata);
-int mjson_print_dynamic_buf(const char *ptr, int len, void *userdata);
-
-#if MJSON_ENABLE_PRETTY
-int mjson_pretty(const char *, int, const char *, mjson_print_fn_t, void *);
-#endif
-
-#if MJSON_ENABLE_MERGE
-int mjson_merge(const char *, int, const char *, int, mjson_print_fn_t, void *);
-#endif
-
-#endif  // MJSON_ENABLE_PRINT
-
-#if MJSON_ENABLE_RPC
-
-void jsonrpc_init(mjson_print_fn_t, void *userdata);
-int mjson_globmatch(const char *s1, int n1, const char *s2, int n2);
-
-struct jsonrpc_request {
-  const char *frame;    // Points to the whole frame
-  int frame_len;        // Frame length
-  const char *params;   // Points to the "params" in the request frame
-  int params_len;       // Length of the "params"
-  const char *id;       // Points to the "id" in the request frame
-  int id_len;           // Length of the "id"
-  const char *method;   // Points to the "method" in the request frame
-  int method_len;       // Length of the "method"
-  mjson_print_fn_t fn;  // Printer function
-  void *fndata;         // Printer function data
-  void *userdata;       // Callback's user data as specified at export time
-};
-
-struct jsonrpc_method {
-  const char *method;
-  int method_sz;
-  void (*cb)(struct jsonrpc_request *);
-  void *cbdata;
-  struct jsonrpc_method *next;
-};
-
-// Main RPC context, stores current request information and a list of
-// exported RPC methods.
-struct jsonrpc_ctx {
-  struct jsonrpc_method *methods;
-  void *userdata;
-  mjson_print_fn_t response_cb;
-  int in_len;
-  char in[MJSON_RPC_IN_BUF_SIZE];
-};
-
-// Registers function fn under the given name within the given RPC context
-#define jsonrpc_ctx_export(ctx, name, fn, ud)                                \
-  do {                                                                       \
-    static struct jsonrpc_method m = {(name), sizeof(name) - 1, (fn), 0, 0}; \
-    m.cbdata = (ud);                                                         \
-    m.next = (ctx)->methods;                                                 \
-    (ctx)->methods = &m;                                                     \
-  } while (0)
-
-void jsonrpc_ctx_init(struct jsonrpc_ctx *ctx, mjson_print_fn_t, void *);
-void jsonrpc_return_error(struct jsonrpc_request *r, int code,
-                          const char *message, const char *data_fmt, ...);
-void jsonrpc_return_success(struct jsonrpc_request *r, const char *result_fmt,
-                            ...);
-void jsonrpc_ctx_process(struct jsonrpc_ctx *ctx, const char *req, int req_sz,
-                         mjson_print_fn_t fn, void *fndata);
-void jsonrpc_ctx_process_byte(struct jsonrpc_ctx *ctx, unsigned char ch,
-                              mjson_print_fn_t fn, void *fndata);
-
-extern struct jsonrpc_ctx jsonrpc_default_context;
-
-#define jsonrpc_export(name, fn, ud) \
-  jsonrpc_ctx_export(&jsonrpc_default_context, (name), (fn), (ud))
-
-#define jsonrpc_process(buf, len, fn, data) \
-  jsonrpc_ctx_process(&jsonrpc_default_context, (buf), (len), (fn), (data))
-
-#define jsonrpc_process_byte(x, fn, data) \
-  jsonrpc_ctx_process_byte(&jsonrpc_default_context, (x), (fn), (data))
-
-#define JSONRPC_ERROR_INVALID -32700    /* Invalid JSON was received */
-#define JSONRPC_ERROR_NOT_FOUND -32601  /* The method does not exist */
-#define JSONRPC_ERROR_BAD_PARAMS -32602 /* Invalid params passed */
-#define JSONRPC_ERROR_INTERNAL -32603   /* Internal JSON-RPC error */
-
-#endif  // MJSON_ENABLE_RPC
-#ifdef __cplusplus
-}
-#endif
-#endif  // MJSON_H
@@ -1,312 +0,0 @@
-const {h, render, Component} = preact;
-const html = htm.bind(h);
-
-class Login extends Component {
-  state = {user: '', pass: ''};
-  onclick = (app) => {
-    const authhdr = 'Basic ' + btoa(this.state.user + ':' + this.state.pass);
-    const headers = {Authorization: authhdr};
-    return axios.get('/api/login', {headers})
-        .then(res => app.setUser(res.data.token))
-        .catch(err => alert('Login failed'));
-  };
-  onpassinput = (ev) => this.setState({pass: ev.target.value});
-  onuserinput = (ev) => this.setState({user: ev.target.value});
-  render({app}, {user, pass, signup}) {
-    return html`
-      <div class='mx-auto bg-light rounded border my-5' style='max-width: 480px;'>
-        <div class='form p-5 rounded form-sm'>
-          <h4 class="text-muted mb-4">Login </h4>
-          <input type='email' placeholder='Email' class='my-2 form-control'
-            oninput=${this.onuserinput} value=${user} />
-          <input type="password" placeholder="Password" class="my-2 form-control"
-            oninput=${this.onpassinput} value=${pass}
-            onchange=${ev => this.onclick(app)} />
-          <div class="mb-4">
-            <button class="btn btn-info btn-block" 
-    disabled=${!user || !pass} onclick="${ev => this.onclick(app)}"
-            > Login </button>
-          </div>
-          <div class="text-muted small">
-            Valid logins: admin:admin, user1:pass1, user2:pass2
-          </div>
-        </div>
-      </div>
-    `
-  }
-};
-
-class Dropdown extends Component {
-  state = {show: false};
-  render(props, state) {
-    const onclick = x => this.setState({show: x});
-    const show = state.show ? 'show' : '';
-    return html`
-      <div class="dropdown autoexpand ${props.cls}">
-        <div type="buttonx" onclick=${() => onclick(!state.show)}
-          class="dropdown-toggle my-0 ${props.bcls}"
-          data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
-          ${props.title}
-        </div>
-        <div onclick=${() => onclick(false)} style=${props.dstyle}
-          class="dropdown-menu ${props.dcls} ${show}">
-          ${props.children}
-        </div>
-      </div>`;
-  }
-};
-
-const NavLink = ({href, title, url}) => html`<a class="nav-item nav-link
-    ${url == href ? 'active' : ''}"
-    target=${href.match(/^http/) ? '_blank' : ''}
-    href="${href.match(/^http/) ? '' : '#'}${href}">${title}</a>`;
-
-class Header extends Component {
-  state = {expanded: false};
-  ontoggle = () => this.setState({expanded: !this.state.expanded});
-  render(props, state) {
-    const u = props.app.state.user || {};
-    return html`
-      <nav class="navbar navbar-expand-md navbar-dark bg-dark">
-        <a class="navbar-brand" href="#">
-          <img src="images/logo.png" width="26" height="26" alt="" class="mr-2" />
-          MyProduct
-        </a>
-          <button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarNav" aria-controls="navbarNav" aria-expanded="false" aria-label="Toggle navigation" 
-            onclick=${() => this.ontoggle()} >
-          <span class="navbar-toggler-icon"></span>
-        </button>
-        <div class="navbar-collapse ${state.expanded ? '' : 'collapse'}"
-            id="navbarNav">
-          <div class="nav navbar-nav mr-auto">
-            <${NavLink} href="/" title="Dashboard" url=${props.url} />
-            <${NavLink} href="/logs" title="Logs" url=${props.url} />
-          </div>
-        </div>
-        <form class="form-inline">
-          <${Dropdown} title="${u.user}" cls="mr-2" 
-          bcls="btn btn-sm btn-outline-light pointer" dcls="m-0 dropdown-menu-right">
-            <div onclick=${() => props.app.setUser('')}
-              class="dropdown-item small pointer text-center">logout</div>
-          </${Dropdown}>
-          <img src="images/user.png" class="rounded-circle nav-item mr-2" width="30" />
-        </form>
-      </nav>
-    `
-  }
-};
-
-const Info = () => html`<div class="alert alert-secondary my-3">
-  This dashboard shows values kept in server memory. Many clients
-  can open this page. As soon as any client changes any value,
-  all clients update automatically.
-  The JS code that watches state changes, reconnects on network failures.
-  That means if server restarts, dashboard on all connected clients
-  refresh automatically.
-  You can use <code>curl</code> command-line utility:
-  <br/><code>curl localhost:8000/api/config/get</code>
-  <br/><code>curl localhost:8000/api/config/watch</code>
-  <br/><code>curl localhost:8000/api/config/set -d '{"a":123}'</code>
-  <br/><span class="badge badge-danger">NOTE:</span> administrators
-  can change settings values, whilst users cannot.
-</div>`;
-
-class DashVideo extends Component {
-  render(props, state) {
-    const onclick = ev => axios.post(
-        '/api/config/set', {value1: +state.value1, value2: state.value2});
-    // alert(JSON.stringify(state));
-    return html`<div id="form">
-      <div><b>Change values</b></div>
-      <table>
-        <tr><td>Value 1 (number):</td><td><input value=${state.value1}
-          onInput=${linkState(this, 'value1')} /></td></tr>
-        <tr><td>Value 2 (string):</td><td><input value=${state.value2}
-            onInput=${linkState(this, 'value2')}/></td></tr>
-        <tr><td></td>
-          <td><button onClick=${onclick}>Save values</button></td></tr>
-      </table>
-    </div>`
-  }
-};
-
-class DashForm extends Component {
-  render(props, state) {
-    const onclick = ev => axios.post(
-        '/api/config/set', {value1: +state.value1, value2: state.value2});
-    // alert(JSON.stringify(state));
-    return html`<div id="form">
-      <div><b>Change values</b></div>
-      <table>
-        <tr><td>Value 1 (number):</td><td><input class="form-control form-control-sm"
-          value=${state.value1}
-          onInput=${linkState(this, 'value1')} /></td></tr>
-        <tr><td>Value 2 (string):</td><td><input class="form-control form-control-sm"
-            value=${state.value2}
-            onInput=${linkState(this, 'value2')}/></td></tr>
-        <tr><td></td>
-          <td><button class="btn btn-primary btn-block"
-            onClick=${onclick}>Save values</button></td></tr>
-      </table>
-    </div>`
-  }
-};
-
-class DashSettings extends Component {
-  state = {value1: null, value2: null};
-  componentDidMount() {
-    axios.get('/api/config/get')
-        .then(r => this.setState(r.data))
-        .catch(e => console.log(e));
-    var self = this;
-    var f = function(reader) {
-      return reader.read().then(function(result) {
-        var data = String.fromCharCode.apply(null, result.value);
-        self.setState(JSON.parse(data));
-        // console.log(JSON.parse(data));
-        if (!result.done) return f(reader);
-      });
-    };
-    fetch('/api/config/watch')
-        .then(r => r.body.getReader())
-        .then(f)
-        .catch(e => setTimeout(x => self.componentDidMount(), 1000));
-  }
-  render(props, state) {
-    return html
-    `<div id="dashboard" style="display: flex; justify-content: flex-evenly;">
-        <div style="width:50%;text-align:center;">Value 1 (number):
-          <div style="font-size:140%;"><b>${state.value1}</b></div></div>
-        <div style="width:50%;text-align:center;">Value 2 (string):
-          <div style="font-size:140%;"><b>${state.value2}</b></div></div>
-    </div>`
-  }
-};
-
-class AdminDashboard extends Component {
-  render(props, state) {
-    return html`<div class="container-fluid">
-      <${Info} />
-      <div class="card-deck">
-        <div class="card">
-          <div class="card-header">Settings</div>
-          <div class="card-body"><${DashSettings} /></div>
-        </div>
-        <div class="card">
-          <div class="card-header">Video stream</div>
-          <div class="card-body"><img src="/api/video1" class="mw-100" /></div>
-        </div>
-        <div class="card">
-          <div class="card-header">Change settings</div>
-          <div class="card-body"><${DashForm} /></div>
-        </div>
-      </div>
-    </div>`
-  }
-}
-
-class UserDashboard extends Component {
-  render(props, state) {
-    return html`<div class="container-fluid">
-      <${Info} />
-      <div class="card-deck">
-        <div class="card">
-          <div class="card-header">Settings</div>
-          <div class="card-body"><${DashSettings} /></div>
-        </div>
-        <div class="card">
-          <div class="card-header">Video stream</div>
-          <div class="card-body"><img src="/api/video1" class="mw-100" /></div>
-        </div>
-      </div>
-    </div>`
-  }
-}
-
-class Logs extends Component {
-  state = {live: '', static: ''};
-  componentDidMount() {
-    var self = this;
-    var f = function(r) {
-      return r.read().then(function(result) {
-        var data = String.fromCharCode.apply(null, result.value);
-        var live = self.state.live + data;
-        self.setState({live});   // Append live log
-        if (!result.done) f(r);  // Read next chunk
-      });
-    };
-    fetch('/api/log/static')
-        .then(r => r.text())
-        .then(r => {
-          self.setState({static: r});
-        })
-        .then(r => fetch('/api/log/live'))
-        .then(r => r.body.getReader())
-        .then(f);
-  }
-  render(props, state) {
-    return html`<div class="container-fluid">
-      <div class="alert alert-secondary my-3">
-        A div below shows file log.txt, which is produced by the server.
-        The server appends a new log message to that file every second,
-        and a div below also shows that, implementing a "live log" feature.
-        JS code on this page first fetches /api/log/static that returns
-        log.txt contents, then fetches /api/log/live that does not return,
-        but feeds chunks of data as they arrive (live log).
-        <br/><br/>
-        You can also use <code>curl</code> command-line utility to see
-        live logs:
-        <br/><code>curl localhost:8000/api/log/live</code>
-      </div>
-      <div class="card-deck">
-        <div class="card">
-          <div class="card-header">Static</div>
-          <div class="card-body"><pre class="log">${state.static}</pre></div>
-        </div>
-        <div class="card">
-          <div class="card-header">Live</div>
-          <div class="card-body"><pre class="log">${state.live}</pre></div>
-        </div>
-      </div>
-    </div>`
-  }
-}
-
-class App extends Component {
-  state = {user: null, url: '/'};
-  setUser(token) {
-    const maxAge = token ? 86400 : 0;
-    document.cookie = `access_token=${token};path=/;max-age=${maxAge}`;
-    // this.setState({token});
-    return axios.get('/api/login')
-        .then(res => this.setState({user: res.data}))
-        .catch(err => this.setState({user: {}}));
-  }
-  componentDidMount() {
-    const getCookie = name => {
-      var v = document.cookie.match('(^|;) ?' + name + '=([^;]*)(;|$)');
-      return v ? v[2] : '';
-    };
-    this.setUser(getCookie('access_token'));  // Move from state1 to 2 or 3
-  }
-  render(props, state) {
-    // We have three states:
-    // 1. Beginning. We don't know if we have a valid auth token or not
-    // 2. We sent an /api/login request, and failed to login
-    // 3. We sent an /api/login request, and succeeded to login
-
-    if (!state.user) return '';                          // State 1
-    if (!state.user.user) return h(Login, {app: this});  // State 2
-    return h(                                            // State 3
-        'div', {}, h(Header, {url: state.url, app: this}),
-        h(preactRouter.Router, {
-          history: History.createHashHistory(),
-          onChange: ev => this.setState({url: ev.url}),
-        },
-          h(state.user.user == 'admin' ? AdminDashboard : UserDashboard,
-            {default: true, app: this}),
-          h(Logs, {path: 'logs', app: this})));
-  }
-};
-
-window.onload = () => render(h(App), document.body);
@@ -1,3 +0,0 @@
-/* axios v0.21.1 | (c) 2020 by Matt Zabriskie */
-!function(e,t){"object"==typeof exports&&"object"==typeof module?module.exports=t():"function"==typeof define&&define.amd?define([],t):"object"==typeof exports?exports.axios=t():e.axios=t()}(this,function(){return function(e){function t(r){if(n[r])return n[r].exports;var o=n[r]={exports:{},id:r,loaded:!1};return e[r].call(o.exports,o,o.exports,t),o.loaded=!0,o.exports}var n={};return t.m=e,t.c=n,t.p="",t(0)}([function(e,t,n){e.exports=n(1)},function(e,t,n){"use strict";function r(e){var t=new i(e),n=s(i.prototype.request,t);return o.extend(n,i.prototype,t),o.extend(n,t),n}var o=n(2),s=n(3),i=n(4),a=n(22),u=n(10),c=r(u);c.Axios=i,c.create=function(e){return r(a(c.defaults,e))},c.Cancel=n(23),c.CancelToken=n(24),c.isCancel=n(9),c.all=function(e){return Promise.all(e)},c.spread=n(25),c.isAxiosError=n(26),e.exports=c,e.exports.default=c},function(e,t,n){"use strict";function r(e){return"[object Array]"===R.call(e)}function o(e){return"undefined"==typeof e}function s(e){return 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-//# sourceMappingURL=axios.min.map
@@ -1,7 +0,0 @@
-/*!
- * Bootstrap v4.3.1 (https://getbootstrap.com/)
- * Copyright 2011-2019 The Bootstrap Authors
- * Copyright 2011-2019 Twitter, Inc.
- * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
- */:root{--blue:#007bff;--indigo:#6610f2;--purple:#6f42c1;--pink:#e83e8c;--red:#dc3545;--orange:#fd7e14;--yellow:#ffc107;--green:#28a745;--teal:#20c997;--cyan:#17a2b8;--white:#fff;--gray:#6c757d;--gray-dark:#343a40;--primary:#007bff;--secondary:#6c757d;--success:#28a745;--info:#17a2b8;--warning:#ffc107;--danger:#dc3545;--light:#f8f9fa;--dark:#343a40;--breakpoint-xs:0;--breakpoint-sm:576px;--breakpoint-md:768px;--breakpoint-lg:992px;--breakpoint-xl:1200px;--font-family-sans-serif:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,"Noto Sans",sans-serif,"Apple Color Emoji","Segoe UI Emoji","Segoe UI Symbol","Noto Color Emoji";--font-family-monospace:SFMono-Regular,Menlo,Monaco,Consolas,"Liberation Mono","Courier 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solid rgba(0,0,0,.1)}.small,Line truncated
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@@ -1 +0,0 @@
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@@ -1,19 +0,0 @@
-<!DOCTYPE html>
-<html lang="en">
-  <head>
-    <title>example</title>
-    <meta charset="utf-8" />
-    <meta http-equiv="X-UA-Compatible" content="IE=edge" />
-    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-    <link rel="stylesheet" href="bootstrap.min.css" />
-    <link rel="stylesheet" href="style.css" />
-    <script src="preact.min.js"></script>
-    <script src="preact-router.min.js"></script>
-    <script src="htm.min.js"></script>
-    <script src="history.min.js"></script>
-    <script src="linkstate.min.js"></script>
-    <script src="axios.min.js"></script>
-    <script src="app.js"></script>
-  </head>
-  <body></body>
-</html>
@@ -1,18 +0,0 @@
-function linkState(component, key, eventPath) {
-  let path = key.split('.'), cache = component.__lsc || (component.__lsc = {});
-
-  return cache[key + eventPath] || (cache[key + eventPath] = function(e) {
-           let t = e && e.target || this, state = {}, obj = state,
-               v = typeof eventPath === 'string' ?
-               delve(e, eventPath) :
-               t.nodeName ? (t.type.match(/^che|rad/) ? t.checked : t.value) :
-                            e,
-               i = 0;
-           for (; i < path.length - 1; i++) {
-             obj = obj[path[i]] ||
-                 (obj[path[i]] = !i && component.state[path[i]] || {});
-           }
-           obj[path[i]] = v;
-           component.setState(state);
-         });
-}
@@ -1 +0,0 @@
-!function(t,e){"object"==typeof exports&&"undefined"!=typeof module?module.exports=e(require("preact")):"function"==typeof define&&define.amd?define(["preact"],e):t.preactRouter=e(t.preact)}(this,function(p){function i(t,e){for(var n in e)t[n]=e[n];return t}function u(t,e,n){var r,o=/(?:\?([^#]*))?(#.*)?$/,i=t.match(o),u={};if(i&&i[1])for(var a=i[1].split("&"),p=0;p<a.length;p++){var c=a[p].split("=");u[decodeURIComponent(c[0])]=decodeURIComponent(c.slice(1).join("="))}t=y(t.replace(o,"")),e=y(e||"");for(var f=Math.max(t.length,e.length),l=0;l<f;l++)if(e[l]&&":"===e[l].charAt(0)){var s=e[l].replace(/(^:|[+*?]+$)/g,""),h=(e[l].match(/[+*?]+$/)||v)[0]||"",d=~h.indexOf("+"),g=~h.indexOf("*"),m=t[l]||"";if(!m&&!g&&(h.indexOf("?")<0||d)){r=!1;break}if(u[s]=decodeURIComponent(m),d||g){u[s]=t.slice(l).map(decodeURIComponent).join("/");break}}else if(e[l]!==t[l]){r=!1;break}return(!0===n.default||!1!==r)&&u}function e(t,e){return t.rank<e.rank?1:t.rank>e.rank?-1:t.index-e.index}function n(t,e){return t.index=e,t.rank=(n=t).props.default?0:function(t){return y(t).map(r).join("")}(n.props.path),t.props;var n}function y(t){return t.replace(/(^\/+|\/+$)/g,"").split("/")}function r(t){return":"==t.charAt(0)?1+"*+?".indexOf(t.charAt(t.length-1))||4:5}function o(){var t;return""+((t=g&&g.location?g.location:g&&g.getCurrentLocation?g.getCurrentLocation():"undefined"!=typeof location?location:b).pathname||"")+(t.search||"")}function a(t,e){return void 0===e&&(e=!1),"string"!=typeof t&&t.url&&(e=t.replace,t=t.url),function(t){for(var e=m.length;e--;)if(m[e].canRoute(t))return 1;return}(t)&&(n=t,void 0===(r=e?"replace":"push")&&(r="push"),g&&g[r]?g[r](n):"undefined"!=typeof history&&history[r+"State"]&&history[r+"State"](null,null,n)),c(t);var n,r}function c(t){for(var e=!1,n=0;n<m.length;n++)!0===m[n].routeTo(t)&&(e=!0);for(var r=C.length;r--;)C[r](t);return e}function f(t){if(t&&t.getAttribute){var e=t.getAttribute("href"),n=t.getAttribute("target");if(e&&e.match(/^\//g)&&(!n||n.match(/^_?self$/i)))return a(e)}}function l(t){if(!(t.ctrlKey||t.metaKey||t.altKey||t.shiftKey||0!==t.button))return f(t.currentTarget||t.target||this),s(t)}function s(t){return t&&(t.stopImmediatePropagation&&t.stopImmediatePropagation(),t.stopPropagation&&t.stopPropagation(),t.preventDefault()),!1}function h(t){if(!(t.ctrlKey||t.metaKey||t.altKey||t.shiftKey||0!==t.button)){var e=t.target;do{if("A"===(e.nodeName+"").toUpperCase()&&e.getAttribute("href")){if(e.hasAttribute("native"))return;if(f(e))return s(t)}}while(e=e.parentNode)}}var d,v={},g=null,m=[],C=[],b={},U=!1,t=((d=p.Component)&&(k.__proto__=d),((k.prototype=Object.create(d&&d.prototype)).constructor=k).prototype.shouldComponentUpdate=function(t){return!0!==t.static||t.url!==this.props.url||t.onChange!==this.props.onChange},k.prototype.canRoute=function(t){return 0<this.getMatchingChildren(p.toChildArray(this.props.children),t,!1).length},k.prototype.routeTo=function(t){this.setState({url:t});var e=this.canRoute(t);return this.updating||this.forceUpdate(),e},k.prototype.componentWillMount=function(){m.push(this),this.updating=!0},k.prototype.componentDidMount=function(){var e=this;g&&(this.unlisten=g.listen(function(t){e.routeTo(""+(t.pathname||"")+(t.search||""))})),this.updating=!1},k.prototype.componentWillUnmount=function(){"function"==typeof this.unlisten&&this.unlisten(),m.splice(m.indexOf(this),1)},k.prototype.componentWillUpdate=function(){this.updating=!0},k.prototype.componentDidUpdate=function(){this.updating=!1},k.prototype.getMatchingChildren=function(t,r,o){return t.filter(n).sort(e).map(function(t){var e=u(r,t.props.path,t.props);if(e){if(!1===o)return t;var n={url:r,matches:e};return i(n,e),delete n.ref,delete n.key,p.cloneElement(t,n)}}).filter(Boolean)},k.prototype.render=function(t,e){var n=t.children,r=t.onChange,o=e.url,i=this.getMatchingChildren(p.toChildArray(n),o,!0),u=i[0]||null,a=this.previousUrl;return o!==a&&(this.previousUrl=o,"function"==typeof r&&r({router:this,url:o,previous:a,active:i,current:u})),u},k);function k(t){d.call(this,t),t.history&&(g=t.history),this.state={url:t.url||o()},U||("function"==typeof addEventListener&&(g||addEventListener("popstate",function(){c(o())}),addEventListener("click",h)),U=!0)}return t.subscribers=C,t.getCurrentUrl=o,t.route=a,(t.Router=t).Route=function(t){return p.createElement(t.component,t)},t.Link=function(t){return p.createElement("a",i({onClick:l},t))},t.exec=u,t});
@@ -1,2 +0,0 @@
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-//# sourceMappingURL=preact.min.js.map
@@ -1,7 +0,0 @@
-html, body { margin: 0; padding: 0; height: 100%; }
-select, input, label::before, textarea { outline: none; box-shadow:none !important; border: 1px solid #ccc !important; }
-.btn:focus,.btn:active:focus,.btn.active:focus,
-.btn.focus,.btn:active.focus,.btn.active.focus { outline: none; box-shadow:none !important; }
-.dropdown.autoexpand:hover>.dropdown-menu { display: block; }
-.pointer { cursor: pointer; }
-.log { max-height: 10em; overflow: auto; height: 100%; }
@@ -1,10 +0,0 @@
-PROG ?= example
-
-all: $(PROG)
-	$(DEBUGGER) ./$(PROG)
-
-$(PROG):
-	$(CC) ../../mongoose.c -I../.. $(CFLAGS) $(EXTRA) -o $(PROG) main.c mjson.c
-
-clean:
-	rm -rf $(PROG) *.o *.dSYM *.gcov *.gcno *.gcda *.obj *.exe *.ilk *.pdb log.txt
@@ -1,82 +0,0 @@
-// Copyright (c) 2020 Cesanta Software Limited
-// All rights reserved
-
-#include "mjson.h"  // JSON parsing and printing
-#include "mongoose.h"
-
-// This is a configuration structure we're going to show on a dashboard
-static struct config {
-  int value1;
-  char *value2;
-} s_config = {123, NULL};
-
-// Stringifies the config. A caller must free() it.
-static char *stringify_config(struct config *cfg) {
-  char *s = NULL;
-  mjson_printf(mjson_print_dynamic_buf, &s, "{%Q:%d,%Q:%Q}", "value1",
-               cfg->value1, "value2", cfg->value2);
-  return s;
-}
-
-// Update config structure. Return true if changed, false otherwise
-static bool update_config(struct mg_http_message *hm, struct config *cfg) {
-  bool changed = false;
-  char buf[256];
-  double dv;
-  if (mjson_get_number(hm->body.ptr, hm->body.len, "$.value1", &dv)) {
-    s_config.value1 = dv;
-    changed = true;
-  }
-  if (mjson_get_string(hm->body.ptr, hm->body.len, "$.value2", buf,
-                       sizeof(buf)) > 0) {
-    free(s_config.value2);
-    s_config.value2 = strdup(buf);
-    changed = true;
-  }
-  return changed;
-}
-
-// Notify all config watchers about the config change
-static void notify_config_change(struct mg_mgr *mgr) {
-  struct mg_connection *c;
-  char *s = stringify_config(&s_config);
-  for (c = mgr->conns; c != NULL; c = c->next) {
-    if (c->label[0] == 'W') mg_http_printf_chunk(c, "%s\n", s);
-  }
-  free(s);
-}
-
-// HTTP request handler function. It implements the following endpoints:
-//   /api/config/get - returns current config
-//   /api/config/set - updates current config
-//   /api/config/watch - does not return. Sends config as it changes in
-//   chunks all other URI - serves web_root/ directory
-static void cb(struct mg_connection *c, int ev, void *ev_data, void *fn_data) {
-  if (ev == MG_EV_HTTP_MSG) {
-    struct mg_http_message *hm = (struct mg_http_message *) ev_data;
-    if (mg_http_match_uri(hm, "/api/config/get")) {
-      char *s = stringify_config(&s_config);
-      mg_printf(c, "HTTP/1.1 200 OK\r\nContent-Length: %d\r\n\r\n%s\n",
-                (int) strlen(s) + 1, s);
-      free(s);
-    } else if (mg_http_match_uri(hm, "/api/config/set")) {
-      if (update_config(hm, &s_config)) notify_config_change(fn_data);
-      mg_printf(c, "HTTP/1.1 200 OK\r\nContent-Length: 0\r\n\r\n");
-    } else if (mg_http_match_uri(hm, "/api/config/watch")) {
-      c->label[0] = 'W';  // Mark ourselves as a config watcher
-      mg_printf(c, "HTTP/1.1 200 OK\r\nTransfer-Encoding: chunked\r\n\r\n");
-    } else {
-      struct mg_http_serve_opts opts = {.root_dir = "web_root"};
-      mg_http_serve_dir(c, ev_data, &opts);
-    }
-  }
-}
-
-int main(void) {
-  struct mg_mgr mgr;
-  mg_mgr_init(&mgr);
-  mg_http_listen(&mgr, "http://localhost:8000", cb, &mgr);
-  for (;;) mg_mgr_poll(&mgr, 1000);
-  mg_mgr_free(&mgr);
-  return 0;
-}
@@ -1,981 +0,0 @@
-// Copyright (c) 2018-2020 Cesanta Software Limited
-// All rights reserved
-//
-// Permission is hereby granted, free of charge, to any person obtaining a copy
-// of this software and associated documentation files (the "Software"), to deal
-// in the Software without restriction, including without limitation the rights
-// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-// copies of the Software, and to permit persons to whom the Software is
-// furnished to do so, subject to the following conditions:
-//
-// The above copyright notice and this permission notice shall be included in
-// all copies or substantial portions of the Software.
-//
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-// SOFTWARE.
-
-#include "mjson.h"
-
-#if !defined(_MSC_VER) || _MSC_VER >= 1700
-#else
-#define va_copy(x, y) (x) = (y)
-#define snprintf _snprintf
-#define alloca _alloca
-#endif
-
-static int mjson_esc(int c, int esc) {
-  const char *p, *esc1 = "\b\f\n\r\t\\\"", *esc2 = "bfnrt\\\"";
-  for (p = esc ? esc1 : esc2; *p != '\0'; p++) {
-    if (*p == c) return esc ? esc2[p - esc1] : esc1[p - esc2];
-  }
-  return 0;
-}
-
-static int mjson_pass_string(const char *s, int len) {
-  int i;
-  for (i = 0; i < len; i++) {
-    if (s[i] == '\\' && i + 1 < len && mjson_esc(s[i + 1], 1)) {
-      i++;
-    } else if (s[i] == '\0') {
-      return MJSON_ERROR_INVALID_INPUT;
-    } else if (s[i] == '"') {
-      return i;
-    }
-  }
-  return MJSON_ERROR_INVALID_INPUT;
-}
-
-int mjson(const char *s, int len, mjson_cb_t cb, void *ud) {
-  enum { S_VALUE, S_KEY, S_COLON, S_COMMA_OR_EOO } expecting = S_VALUE;
-  unsigned char nesting[MJSON_MAX_DEPTH];
-  int i, depth = 0;
-#define MJSONCALL(ev) \
-  if (cb != NULL && cb(ev, s, start, i - start + 1, ud)) return i + 1;
-
-// In the ascii table, the distance between `[` and `]` is 2.
-// Ditto for `{` and `}`. Hence +2 in the code below.
-#define MJSONEOO()                                                     \
-  do {                                                                 \
-    if (c != nesting[depth - 1] + 2) return MJSON_ERROR_INVALID_INPUT; \
-    depth--;                                                           \
-    if (depth == 0) {                                                  \
-      MJSONCALL(tok);                                                  \
-      return i + 1;                                                    \
-    }                                                                  \
-  } while (0)
-
-  for (i = 0; i < len; i++) {
-    int start = i;
-    unsigned char c = ((unsigned char *) s)[i];
-    int tok = c;
-    if (c == ' ' || c == '\t' || c == '\n' || c == '\r') continue;
-    // printf("- %c [%.*s] %d %d\n", c, i, s, depth, expecting);
-    switch (expecting) {
-      case S_VALUE:
-        if (c == '{') {
-          if (depth >= (int) sizeof(nesting)) return MJSON_ERROR_TOO_DEEP;
-          nesting[depth++] = c;
-          expecting = S_KEY;
-          break;
-        } else if (c == '[') {
-          if (depth >= (int) sizeof(nesting)) return MJSON_ERROR_TOO_DEEP;
-          nesting[depth++] = c;
-          break;
-        } else if (c == ']' && depth > 0) {  // Empty array
-          MJSONEOO();
-        } else if (c == 't' && i + 3 < len && memcmp(&s[i], "true", 4) == 0) {
-          i += 3;
-          tok = MJSON_TOK_TRUE;
-        } else if (c == 'n' && i + 3 < len && memcmp(&s[i], "null", 4) == 0) {
-          i += 3;
-          tok = MJSON_TOK_NULL;
-        } else if (c == 'f' && i + 4 < len && memcmp(&s[i], "false", 5) == 0) {
-          i += 4;
-          tok = MJSON_TOK_FALSE;
-        } else if (c == '-' || ((c >= '0' && c <= '9'))) {
-          char *end = NULL;
-          strtod(&s[i], &end);
-          if (end != NULL) i += end - &s[i] - 1;
-          tok = MJSON_TOK_NUMBER;
-        } else if (c == '"') {
-          int n = mjson_pass_string(&s[i + 1], len - i - 1);
-          if (n < 0) return n;
-          i += n + 1;
-          tok = MJSON_TOK_STRING;
-        } else {
-          return MJSON_ERROR_INVALID_INPUT;
-        }
-        if (depth == 0) {
-          MJSONCALL(tok);
-          return i + 1;
-        }
-        expecting = S_COMMA_OR_EOO;
-        break;
-
-      case S_KEY:
-        if (c == '"') {
-          int n = mjson_pass_string(&s[i + 1], len - i - 1);
-          if (n < 0) return n;
-          i += n + 1;
-          tok = MJSON_TOK_KEY;
-          expecting = S_COLON;
-        } else if (c == '}') {  // Empty object
-          MJSONEOO();
-          expecting = S_COMMA_OR_EOO;
-        } else {
-          return MJSON_ERROR_INVALID_INPUT;
-        }
-        break;
-
-      case S_COLON:
-        if (c == ':') {
-          expecting = S_VALUE;
-        } else {
-          return MJSON_ERROR_INVALID_INPUT;
-        }
-        break;
-
-      case S_COMMA_OR_EOO:
-        if (depth <= 0) return MJSON_ERROR_INVALID_INPUT;
-        if (c == ',') {
-          expecting = (nesting[depth - 1] == '{') ? S_KEY : S_VALUE;
-        } else if (c == ']' || c == '}') {
-          MJSONEOO();
-        } else {
-          return MJSON_ERROR_INVALID_INPUT;
-        }
-        break;
-    }
-    MJSONCALL(tok);
-  }
-  return MJSON_ERROR_INVALID_INPUT;
-}
-
-struct msjon_get_data {
-  const char *path;     // Lookup json path
-  int pos;              // Current path index
-  int d1;               // Current depth of traversal
-  int d2;               // Expected depth of traversal
-  int i1;               // Index in an array
-  int i2;               // Expected index in an array
-  int obj;              // If the value is array/object, offset where it starts
-  const char **tokptr;  // Destination
-  int *toklen;          // Destination length
-  int tok;              // Returned token
-};
-
-static int mjson_plen(const char *s) {
-  int i = 0;
-  while (s[i] != '\0' && s[i] != '.' && s[i] != '[') i++;
-  return i;
-}
-
-static int mjson_get_cb(int tok, const char *s, int off, int len, void *ud) {
-  struct msjon_get_data *data = (struct msjon_get_data *) ud;
-  // printf("--> %2x %2d %2d %2d %2d\t'%s'\t'%.*s'\t\t'%.*s'\n", tok, data->d1,
-  // data->d2, data->i1, data->i2, data->path + data->pos, off, s, len,
-  // s + off);
-  if (data->tok != MJSON_TOK_INVALID) return 1;  // Found
-
-  if (tok == '{') {
-    if (!data->path[data->pos] && data->d1 == data->d2) data->obj = off;
-    data->d1++;
-  } else if (tok == '[') {
-    if (data->d1 == data->d2 && data->path[data->pos] == '[') {
-      data->i1 = 0;
-      data->i2 = (int) strtod(&data->path[data->pos + 1], NULL);
-      if (data->i1 == data->i2) {
-        data->d2++;
-        data->pos += 3;
-      }
-    }
-    if (!data->path[data->pos] && data->d1 == data->d2) data->obj = off;
-    data->d1++;
-  } else if (tok == ',') {
-    if (data->d1 == data->d2 + 1) {
-      data->i1++;
-      if (data->i1 == data->i2) {
-        while (data->path[data->pos] != ']') data->pos++;
-        data->pos++;
-        data->d2++;
-      }
-    }
-  } else if (tok == MJSON_TOK_KEY && data->d1 == data->d2 + 1 &&
-             data->path[data->pos] == '.' && s[off] == '"' &&
-             s[off + len - 1] == '"' &&
-             mjson_plen(&data->path[data->pos + 1]) == len - 2 &&
-             !memcmp(s + off + 1, &data->path[data->pos + 1], len - 2)) {
-    data->d2++;
-    data->pos += len - 1;
-  } else if (tok == MJSON_TOK_KEY && data->d1 == data->d2) {
-    return 1;  // Exhausted path, not found
-  } else if (tok == '}' || tok == ']') {
-    data->d1--;
-    // data->d2--;
-    if (!data->path[data->pos] && data->d1 == data->d2 && data->obj != -1) {
-      data->tok = tok - 2;
-      if (data->tokptr) *data->tokptr = s + data->obj;
-      if (data->toklen) *data->toklen = off - data->obj + 1;
-      return 1;
-    }
-  } else if (MJSON_TOK_IS_VALUE(tok)) {
-    // printf("TOK --> %d\n", tok);
-    if (data->d1 == data->d2 && !data->path[data->pos]) {
-      data->tok = tok;
-      if (data->tokptr) *data->tokptr = s + off;
-      if (data->toklen) *data->toklen = len;
-      return 1;
-    }
-  }
-  return 0;
-}
-
-enum mjson_tok mjson_find(const char *s, int len, const char *jp,
-                          const char **tokptr, int *toklen) {
-  struct msjon_get_data data = {jp, 1,  0,      0,      0,
-                                0,  -1, tokptr, toklen, MJSON_TOK_INVALID};
-  if (jp[0] != '$') return MJSON_TOK_INVALID;
-  if (mjson(s, len, mjson_get_cb, &data) < 0) return MJSON_TOK_INVALID;
-  return (enum mjson_tok) data.tok;
-}
-
-int mjson_get_number(const char *s, int len, const char *path, double *v) {
-  const char *p;
-  int tok, n;
-  if ((tok = mjson_find(s, len, path, &p, &n)) == MJSON_TOK_NUMBER) {
-    if (v != NULL) *v = strtod(p, NULL);
-  }
-  return tok == MJSON_TOK_NUMBER ? 1 : 0;
-}
-
-int mjson_get_bool(const char *s, int len, const char *path, int *v) {
-  int tok = mjson_find(s, len, path, NULL, NULL);
-  if (tok == MJSON_TOK_TRUE && v != NULL) *v = 1;
-  if (tok == MJSON_TOK_FALSE && v != NULL) *v = 0;
-  return tok == MJSON_TOK_TRUE || tok == MJSON_TOK_FALSE ? 1 : 0;
-}
-
-static int mjson_unescape(const char *s, int len, char *to, int n) {
-  int i, j;
-  for (i = 0, j = 0; i < len && j < n; i++, j++) {
-    if (s[i] == '\\' && i + 1 < len) {
-      int c = mjson_esc(s[i + 1], 0);
-      if (c == 0) return -1;
-      to[j] = c;
-      i++;
-    } else {
-      to[j] = s[i];
-    }
-  }
-  if (j >= n) return -1;
-  if (n > 0) to[j] = '\0';
-  return j;
-}
-
-int mjson_get_string(const char *s, int len, const char *path, char *to,
-                     int n) {
-  const char *p;
-  int sz;
-  if (mjson_find(s, len, path, &p, &sz) != MJSON_TOK_STRING) return -1;
-  return mjson_unescape(p + 1, sz - 2, to, n);
-}
-
-int mjson_get_hex(const char *s, int len, const char *x, char *to, int n) {
-  const char *p;
-  int i, j, sz;
-  if (mjson_find(s, len, x, &p, &sz) != MJSON_TOK_STRING) return -1;
-  for (i = j = 0; i < sz - 3 && j < n; i += 2, j++) {
-#define HEXTOI(x) (x >= '0' && x <= '9' ? x - '0' : x - 'W')
-    unsigned char a = *(const unsigned char *) (p + i + 1);
-    unsigned char b = *(const unsigned char *) (p + i + 2);
-    ((unsigned char *) to)[j] = (HEXTOI(a) << 4) | HEXTOI(b);
-  }
-  if (j < n) to[j] = '\0';
-  return j;
-}
-
-#if MJSON_ENABLE_BASE64
-static int mjson_base64rev(int c) {
-  if (c >= 'A' && c <= 'Z') {
-    return c - 'A';
-  } else if (c >= 'a' && c <= 'z') {
-    return c + 26 - 'a';
-  } else if (c >= '0' && c <= '9') {
-    return c + 52 - '0';
-  } else if (c == '+') {
-    return 62;
-  } else if (c == '/') {
-    return 63;
-  } else {
-    return 64;
-  }
-}
-
-int mjson_base64_dec(const char *src, int n, char *dst, int dlen) {
-  const char *end = src + n;
-  int len = 0;
-  while (src + 3 < end && len < dlen) {
-    int a = mjson_base64rev(src[0]), b = mjson_base64rev(src[1]),
-        c = mjson_base64rev(src[2]), d = mjson_base64rev(src[3]);
-    dst[len++] = (a << 2) | (b >> 4);
-    if (src[2] != '=' && len < dlen) {
-      dst[len++] = (b << 4) | (c >> 2);
-      if (src[3] != '=' && len < dlen) {
-        dst[len++] = (c << 6) | d;
-      }
-    }
-    src += 4;
-  }
-  if (len < dlen) dst[len] = '\0';
-  return len;
-}
-
-int mjson_get_base64(const char *s, int len, const char *path, char *to,
-                     int n) {
-  const char *p;
-  int sz;
-  if (mjson_find(s, len, path, &p, &sz) != MJSON_TOK_STRING) return 0;
-  return mjson_base64_dec(p + 1, sz - 2, to, n);
-}
-#endif  // MJSON_ENABLE_BASE64
-
-#if MJSON_ENABLE_NEXT
-struct nextdata {
-  int off, len, depth, t, vo, arrayindex;
-  int *koff, *klen, *voff, *vlen, *vtype;
-};
-
-static int next_cb(int tok, const char *s, int off, int len, void *ud) {
-  struct nextdata *d = (struct nextdata *) ud;
-  // int i;
-  switch (tok) {
-    case '{':
-    case '[':
-      if (d->depth == 0 && tok == '[') d->arrayindex = 0;
-      if (d->depth == 1 && off > d->off) {
-        d->vo = off;
-        d->t = tok == '{' ? MJSON_TOK_OBJECT : MJSON_TOK_ARRAY;
-        if (d->voff) *d->voff = off;
-        if (d->vtype) *d->vtype = d->t;
-      }
-      d->depth++;
-      break;
-    case '}':
-    case ']':
-      d->depth--;
-      if (d->depth == 1 && d->vo) {
-        d->len = off + len;
-        if (d->vlen) *d->vlen = d->len - d->vo;
-        if (d->arrayindex >= 0) {
-          if (d->koff) *d->koff = d->arrayindex;  // koff holds array index
-          if (d->klen) *d->klen = 0;              // klen holds 0
-        }
-        return 1;
-      }
-      if (d->depth == 1 && d->arrayindex >= 0) d->arrayindex++;
-      break;
-    case ',':
-    case ':':
-      break;
-    case MJSON_TOK_KEY:
-      if (d->depth == 1 && d->off < off) {
-        if (d->koff) *d->koff = off;  // And report back to the user
-        if (d->klen) *d->klen = len;  // If we have to
-      }
-      break;
-    default:
-      if (d->depth != 1) break;
-      // If we're iterating over the array
-      if (off > d->off) {
-        d->len = off + len;
-        if (d->vlen) *d->vlen = len;    // value length
-        if (d->voff) *d->voff = off;    // value offset
-        if (d->vtype) *d->vtype = tok;  // value type
-        if (d->arrayindex >= 0) {
-          if (d->koff) *d->koff = d->arrayindex;  // koff holds array index
-          if (d->klen) *d->klen = 0;              // klen holds 0
-        }
-        return 1;
-      }
-      if (d->arrayindex >= 0) d->arrayindex++;
-      break;
-  }
-  (void) s;
-  return 0;
-}
-
-int mjson_next(const char *s, int n, int off, int *koff, int *klen, int *voff,
-               int *vlen, int *vtype) {
-  struct nextdata d = {off, 0, 0, 0, 0, -1, koff, klen, voff, vlen, vtype};
-  mjson(s, n, next_cb, &d);
-  return d.len;
-}
-#endif
-
-#if MJSON_ENABLE_PRINT
-int mjson_print_fixed_buf(const char *ptr, int len, void *fndata) {
-  struct mjson_fixedbuf *fb = (struct mjson_fixedbuf *) fndata;
-  int i, left = fb->size - 1 - fb->len;
-  if (left < len) len = left;
-  for (i = 0; i < len; i++) fb->ptr[fb->len + i] = ptr[i];
-  fb->len += len;
-  fb->ptr[fb->len] = '\0';
-  return len;
-}
-
-int mjson_print_dynamic_buf(const char *ptr, int len, void *fndata) {
-  char *s, *buf = *(char **) fndata;
-  int curlen = buf == NULL ? 0 : strlen(buf);
-  if ((s = (char *) realloc(buf, curlen + len + 1)) == NULL) {
-    return 0;
-  } else {
-    memcpy(s + curlen, ptr, len);
-    s[curlen + len] = '\0';
-    *(char **) fndata = s;
-    return len;
-  }
-}
-
-int mjson_print_null(const char *ptr, int len, void *userdata) {
-  (void) ptr;
-  (void) userdata;
-  return len;
-}
-
-int mjson_print_file(const char *ptr, int len, void *userdata) {
-  return fwrite(ptr, 1, len, (FILE *) userdata);
-}
-
-int mjson_print_buf(mjson_print_fn_t fn, void *fndata, const char *buf,
-                    int len) {
-  return fn(buf, len, fndata);
-}
-
-int mjson_print_int(mjson_print_fn_t fn, void *fndata, int value,
-                    int is_signed) {
-  char buf[20];
-  int len = snprintf(buf, sizeof(buf), is_signed ? "%d" : "%u", value);
-  return fn(buf, len, fndata);
-}
-
-int mjson_print_long(mjson_print_fn_t fn, void *fndata, long value,
-                     int is_signed) {
-  char buf[20];
-  const char *fmt = (is_signed ? "%ld" : "%lu");
-  int len = snprintf(buf, sizeof(buf), fmt, value);
-  return fn(buf, len, fndata);
-}
-
-int mjson_print_dbl(mjson_print_fn_t fn, void *fndata, double d,
-                    const char *fmt) {
-  char buf[40];
-  int n = snprintf(buf, sizeof(buf), fmt, d);
-  return fn(buf, n, fndata);
-}
-
-int mjson_print_str(mjson_print_fn_t fn, void *fndata, const char *s, int len) {
-  int i, n = fn("\"", 1, fndata);
-  for (i = 0; i < len; i++) {
-    char c = mjson_esc(s[i], 1);
-    if (c) {
-      n += fn("\\", 1, fndata);
-      n += fn(&c, 1, fndata);
-    } else {
-      n += fn(&s[i], 1, fndata);
-    }
-  }
-  return n + fn("\"", 1, fndata);
-}
-
-#if MJSON_ENABLE_BASE64
-int mjson_print_b64(mjson_print_fn_t fn, void *fndata, const unsigned char *s,
-                    int n) {
-  const char *t =
-      "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
-  int i, len = fn("\"", 1, fndata);
-  for (i = 0; i < n; i += 3) {
-    int a = s[i], b = i + 1 < n ? s[i + 1] : 0, c = i + 2 < n ? s[i + 2] : 0;
-    char buf[4] = {t[a >> 2], t[(a & 3) << 4 | (b >> 4)], '=', '='};
-    if (i + 1 < n) buf[2] = t[(b & 15) << 2 | (c >> 6)];
-    if (i + 2 < n) buf[3] = t[c & 63];
-    len += fn(buf, sizeof(buf), fndata);
-  }
-  return len + fn("\"", 1, fndata);
-}
-#endif /* MJSON_ENABLE_BASE64 */
-
-int mjson_vprintf(mjson_print_fn_t fn, void *fndata, const char *fmt,
-                  va_list xap) {
-  int i = 0, n = 0;
-  va_list ap;
-  va_copy(ap, xap);
-  while (fmt[i] != '\0') {
-    if (fmt[i] == '%') {
-      char fc = fmt[++i];
-      int is_long = 0;
-      if (fc == 'l') {
-        is_long = 1;
-        fc = fmt[i + 1];
-      }
-      if (fc == 'Q') {
-        char *buf = va_arg(ap, char *);
-        n += mjson_print_str(fn, fndata, buf ? buf : "", buf ? strlen(buf) : 0);
-      } else if (strncmp(&fmt[i], ".*Q", 3) == 0) {
-        int len = va_arg(ap, int);
-        char *buf = va_arg(ap, char *);
-        n += mjson_print_str(fn, fndata, buf, len);
-        i += 2;
-      } else if (fc == 'd' || fc == 'u') {
-        int is_signed = (fc == 'd');
-        if (is_long) {
-          long val = va_arg(ap, long);
-          n += mjson_print_long(fn, fndata, val, is_signed);
-          i++;
-        } else {
-          int val = va_arg(ap, int);
-          n += mjson_print_int(fn, fndata, val, is_signed);
-        }
-      } else if (fc == 'B') {
-        const char *s = va_arg(ap, int) ? "true" : "false";
-        n += mjson_print_buf(fn, fndata, s, strlen(s));
-      } else if (fc == 's') {
-        char *buf = va_arg(ap, char *);
-        n += mjson_print_buf(fn, fndata, buf, strlen(buf));
-      } else if (strncmp(&fmt[i], ".*s", 3) == 0) {
-        int len = va_arg(ap, int);
-        char *buf = va_arg(ap, char *);
-        n += mjson_print_buf(fn, fndata, buf, len);
-        i += 2;
-      } else if (fc == 'g') {
-        n += mjson_print_dbl(fn, fndata, va_arg(ap, double), "%g");
-      } else if (fc == 'f') {
-        n += mjson_print_dbl(fn, fndata, va_arg(ap, double), "%f");
-#if MJSON_ENABLE_BASE64
-      } else if (fc == 'V') {
-        int len = va_arg(ap, int);
-        const char *buf = va_arg(ap, const char *);
-        n += mjson_print_b64(fn, fndata, (unsigned char *) buf, len);
-#endif
-      } else if (fc == 'H') {
-        const char *hex = "0123456789abcdef";
-        int i, len = va_arg(ap, int);
-        const unsigned char *p = va_arg(ap, const unsigned char *);
-        n += fn("\"", 1, fndata);
-        for (i = 0; i < len; i++) {
-          n += fn(&hex[(p[i] >> 4) & 15], 1, fndata);
-          n += fn(&hex[p[i] & 15], 1, fndata);
-        }
-        n += fn("\"", 1, fndata);
-      } else if (fc == 'M') {
-        mjson_vprint_fn_t vfn = va_arg(ap, mjson_vprint_fn_t);
-        n += vfn(fn, fndata, &ap);
-      }
-      i++;
-    } else {
-      n += mjson_print_buf(fn, fndata, &fmt[i++], 1);
-    }
-  }
-  va_end(xap);
-  va_end(ap);
-  return n;
-}
-
-int mjson_printf(mjson_print_fn_t fn, void *fndata, const char *fmt, ...) {
-  va_list ap;
-  int len;
-  va_start(ap, fmt);
-  len = mjson_vprintf(fn, fndata, fmt, ap);
-  va_end(ap);
-  return len;
-}
-#endif /* MJSON_ENABLE_PRINT */
-
-#if MJSON_IMPLEMENT_STRTOD
-static inline int is_digit(int c) {
-  return c >= '0' && c <= '9';
-}
-
-/* NOTE: strtod() implementation by Yasuhiro Matsumoto. */
-double strtod(const char *str, char **end) {
-  double d = 0.0;
-  int sign = 1, n = 0;
-  const char *p = str, *a = str;
-
-  /* decimal part */
-  if (*p == '-') {
-    sign = -1;
-    ++p;
-  } else if (*p == '+')
-    ++p;
-  if (is_digit(*p)) {
-    d = (double) (*p++ - '0');
-    while (*p && is_digit(*p)) {
-      d = d * 10.0 + (double) (*p - '0');
-      ++p;
-      ++n;
-    }
-    a = p;
-  } else if (*p != '.')
-    goto done;
-  d *= sign;
-
-  /* fraction part */
-  if (*p == '.') {
-    double f = 0.0;
-    double base = 0.1;
-    ++p;
-
-    if (is_digit(*p)) {
-      while (*p && is_digit(*p)) {
-        f += base * (*p - '0');
-        base /= 10.0;
-        ++p;
-        ++n;
-      }
-    }
-    d += f * sign;
-    a = p;
-  }
-
-  /* exponential part */
-  if ((*p == 'E') || (*p == 'e')) {
-    int e = 0;
-    ++p;
-
-    sign = 1;
-    if (*p == '-') {
-      sign = -1;
-      ++p;
-    } else if (*p == '+')
-      ++p;
-
-    if (is_digit(*p)) {
-      while (*p == '0') ++p;
-      e = (int) (*p++ - '0');
-      while (*p && is_digit(*p)) {
-        e = e * 10 + (int) (*p - '0');
-        ++p;
-      }
-      e *= sign;
-    } else if (!is_digit(*(a - 1))) {
-      a = str;
-      goto done;
-    } else if (*p == 0)
-      goto done;
-
-    if (d == 2.2250738585072011 && e == -308) {
-      d = 0.0;
-      a = p;
-      goto done;
-    }
-    if (d == 2.2250738585072012 && e <= -308) {
-      d *= 1.0e-308;
-      a = p;
-      goto done;
-    }
-    {
-      int i;
-      for (i = 0; i < 10; i++) d *= 10;
-    }
-    a = p;
-  } else if (p > str && !is_digit(*(p - 1))) {
-    a = str;
-    goto done;
-  }
-
-done:
-  if (end) *end = (char *) a;
-  return d;
-}
-#endif
-
-#if MJSON_ENABLE_MERGE
-int mjson_merge(const char *s, int n, const char *s2, int n2,
-                mjson_print_fn_t fn, void *userdata) {
-  int koff, klen, voff, vlen, t, t2, k, off = 0, len = 0, comma = 0;
-  if (n < 2) return len;
-  len += fn("{", 1, userdata);
-  while ((off = mjson_next(s, n, off, &koff, &klen, &voff, &vlen, &t)) != 0) {
-#if !defined(_MSC_VER) || _MSC_VER >= 1700
-    char path[klen + 1];
-#else
-    char *path = (char *) alloca(klen + 1);
-#endif
-    const char *val;
-    memcpy(path, "$.", 2);
-    memcpy(path + 2, s + koff + 1, klen - 2);
-    path[klen] = '\0';
-    if ((t2 = mjson_find(s2, n2, path, &val, &k)) != MJSON_TOK_INVALID) {
-      if (t2 == MJSON_TOK_NULL) continue;  // null deletes the key
-    } else {
-      val = s + voff;  // Key is not found in the update. Copy the old value.
-    }
-    if (comma) len += fn(",", 1, userdata);
-    len += fn(s + koff, klen, userdata);
-    len += fn(":", 1, userdata);
-    if (t == MJSON_TOK_OBJECT && t2 == MJSON_TOK_OBJECT) {
-      len += mjson_merge(s + voff, vlen, val, k, fn, userdata);
-    } else {
-      if (t2 != MJSON_TOK_INVALID) vlen = k;
-      len += fn(val, vlen, userdata);
-    }
-    comma = 1;
-  }
-  // Add missing keys
-  off = 0;
-  while ((off = mjson_next(s2, n2, off, &koff, &klen, &voff, &vlen, &t)) != 0) {
-#if !defined(_MSC_VER) || _MSC_VER >= 1700
-    char path[klen + 1];
-#else
-    char *path = (char *) alloca(klen + 1);
-#endif
-    const char *val;
-    if (t == MJSON_TOK_NULL) continue;
-    memcpy(path, "$.", 2);
-    memcpy(path + 2, s2 + koff + 1, klen - 2);
-    path[klen] = '\0';
-    if (mjson_find(s, n, path, &val, &vlen) != MJSON_TOK_INVALID) continue;
-    if (comma) len += fn(",", 1, userdata);
-    len += fn(s2 + koff, klen, userdata);
-    len += fn(":", 1, userdata);
-    len += fn(s2 + voff, vlen, userdata);
-    comma = 1;
-  }
-  len += fn("}", 1, userdata);
-  return len;
-}
-#endif  // MJSON_ENABLE_MERGE
-
-#if MJSON_ENABLE_PRETTY
-struct prettydata {
-  int level;
-  int len;
-  int prev;
-  const char *pad;
-  int padlen;
-  mjson_print_fn_t fn;
-  void *userdata;
-};
-
-static int pretty_cb(int ev, const char *s, int off, int len, void *ud) {
-  struct prettydata *d = (struct prettydata *) ud;
-  int i;
-  switch (ev) {
-    case '{':
-    case '[':
-      d->level++;
-      d->len += d->fn(s + off, len, d->userdata);
-      break;
-    case '}':
-    case ']':
-      d->level--;
-      if (d->prev != '[' && d->prev != '{' && d->padlen > 0) {
-        d->len += d->fn("\n", 1, d->userdata);
-        for (i = 0; i < d->level; i++)
-          d->len += d->fn(d->pad, d->padlen, d->userdata);
-      }
-      d->len += d->fn(s + off, len, d->userdata);
-      break;
-    case ',':
-      d->len += d->fn(s + off, len, d->userdata);
-      if (d->padlen > 0) {
-        d->len += d->fn("\n", 1, d->userdata);
-        for (i = 0; i < d->level; i++)
-          d->len += d->fn(d->pad, d->padlen, d->userdata);
-      }
-      break;
-    case ':':
-      d->len += d->fn(s + off, len, d->userdata);
-      if (d->padlen > 0) d->len += d->fn(" ", 1, d->userdata);
-      break;
-    case MJSON_TOK_KEY:
-      if (d->prev == '{' && d->padlen > 0) {
-        d->len += d->fn("\n", 1, d->userdata);
-        for (i = 0; i < d->level; i++)
-          d->len += d->fn(d->pad, d->padlen, d->userdata);
-      }
-      d->len += d->fn(s + off, len, d->userdata);
-      break;
-    default:
-      if (d->prev == '[' && d->padlen > 0) {
-        d->len += d->fn("\n", 1, d->userdata);
-        for (i = 0; i < d->level; i++)
-          d->len += d->fn(d->pad, d->padlen, d->userdata);
-      }
-      d->len += d->fn(s + off, len, d->userdata);
-      break;
-  }
-  d->prev = ev;
-  return 0;
-}
-
-int mjson_pretty(const char *s, int n, const char *pad, mjson_print_fn_t fn,
-                 void *userdata) {
-  struct prettydata d = {0, 0, 0, pad, strlen(pad), fn, userdata};
-  if (mjson(s, n, pretty_cb, &d) < 0) return -1;
-  return d.len;
-}
-#endif  // MJSON_ENABLE_PRETTY
-
-#if MJSON_ENABLE_RPC
-struct jsonrpc_ctx jsonrpc_default_context;
-struct jsonrpc_userdata {
-  mjson_print_fn_t fn;
-  void *fndata;
-};
-
-int mjson_globmatch(const char *s1, int n1, const char *s2, int n2) {
-  int i = 0, j = 0, ni = 0, nj = 0;
-  while (i < n1 || j < n2) {
-    if (i < n1 && j < n2 && (s1[i] == '?' || s2[j] == s1[i])) {
-      i++, j++;
-    } else if (i < n1 && (s1[i] == '*' || s1[i] == '#')) {
-      ni = i, nj = j + 1, i++;
-    } else if (nj > 0 && nj <= n2 && (s1[i - 1] == '#' || s2[j] != '/')) {
-      i = ni, j = nj;
-    } else {
-      return 0;
-    }
-  }
-  return 1;
-}
-
-static int jsonrpc_printer(const char *buf, int len, void *userdata) {
-  struct jsonrpc_userdata *u = (struct jsonrpc_userdata *) userdata;
-  return u->fn(buf, len, u->fndata);
-}
-
-void jsonrpc_return_errorv(struct jsonrpc_request *r, int code,
-                           const char *message, const char *data_fmt,
-                           va_list ap) {
-  if (r->id_len == 0) return;
-  mjson_printf(r->fn, r->fndata,
-               "{\"id\":%.*s,\"error\":{\"code\":%d,\"message\":%Q", r->id_len,
-               r->id, code, message == NULL ? "" : message);
-  if (data_fmt != NULL) {
-  	mjson_printf(r->fn, r->fndata, ",\"data\":");
-    mjson_vprintf(r->fn, r->fndata, data_fmt, ap);
-  }
-  mjson_printf(r->fn, r->fndata, "}}\n");
-}
-
-void jsonrpc_return_error(struct jsonrpc_request *r, int code,
-                          const char *message, const char *data_fmt, ...) {
-  va_list ap;
-  va_start(ap, data_fmt);
-  jsonrpc_return_errorv(r, code, message, data_fmt, ap);
-  va_end(ap);
-}
-
-void jsonrpc_return_successv(struct jsonrpc_request *r, const char *result_fmt,
-                             va_list ap) {
-  if (r->id_len == 0) return;
-  mjson_printf(r->fn, r->fndata, "{\"id\":%.*s,\"result\":", r->id_len, r->id);
-  if (result_fmt != NULL) {
-    mjson_vprintf(r->fn, r->fndata, result_fmt, ap);
-  } else {
-    mjson_printf(r->fn, r->fndata, "%s", "null");
-  }
-  mjson_printf(r->fn, r->fndata, "}\n");
-}
-
-void jsonrpc_return_success(struct jsonrpc_request *r, const char *result_fmt,
-                            ...) {
-  va_list ap;
-  va_start(ap, result_fmt);
-  jsonrpc_return_successv(r, result_fmt, ap);
-  va_end(ap);
-}
-
-void jsonrpc_ctx_process(struct jsonrpc_ctx *ctx, const char *req, int req_sz,
-                         mjson_print_fn_t fn, void *fndata) {
-  const char *result = NULL, *error = NULL;
-  int result_sz = 0, error_sz = 0;
-  struct jsonrpc_method *m = NULL;
-  struct jsonrpc_userdata d;
-  struct jsonrpc_request r = {req, req_sz,           0,    0,   0, 0, 0,
-                              0,   &jsonrpc_printer, NULL, NULL};
-
-  d.fn = fn;
-  d.fndata = fndata;
-  r.fndata = &d;
-
-  // Is is a response frame?
-  mjson_find(req, req_sz, "$.result", &result, &result_sz);
-  if (result == NULL) mjson_find(req, req_sz, "$.error", &error, &error_sz);
-  if (result_sz > 0 || error_sz > 0) {
-    if (ctx->response_cb != NULL) ctx->response_cb(req, req_sz, ctx->userdata);
-    return;
-  }
-
-  // Method must exist and must be a string
-  if (mjson_find(req, req_sz, "$.method", &r.method, &r.method_len) !=
-      MJSON_TOK_STRING) {
-    mjson_printf(fn, fndata, "{\"error\":{\"code\":-32700,\"message\":%.*Q}}\n",
-                 req_sz, req);
-    ctx->in_len = 0;
-    return;
-  }
-
-  // id and params are optional
-  mjson_find(req, req_sz, "$.id", &r.id, &r.id_len);
-  mjson_find(req, req_sz, "$.params", &r.params, &r.params_len);
-
-  for (m = ctx->methods; m != NULL; m = m->next) {
-    if (mjson_globmatch(m->method, m->method_sz, r.method + 1,
-                        r.method_len - 2) > 0) {
-      if (r.params == NULL) r.params = "";
-      r.userdata = m->cbdata;
-      m->cb(&r);
-      break;
-    }
-  }
-  if (m == NULL) {
-    jsonrpc_return_error(&r, JSONRPC_ERROR_NOT_FOUND, "method not found", NULL);
-  }
-}
-
-static int jsonrpc_print_methods(mjson_print_fn_t fn, void *fndata,
-                                 va_list *ap) {
-  struct jsonrpc_ctx *ctx = va_arg(*ap, struct jsonrpc_ctx *);
-  struct jsonrpc_method *m;
-  int len = 0;
-  for (m = ctx->methods; m != NULL; m = m->next) {
-    if (m != ctx->methods) len += mjson_print_buf(fn, fndata, ",", 1);
-    len += mjson_print_str(fn, fndata, m->method, strlen(m->method));
-  }
-  return len;
-}
-
-static void rpclist(struct jsonrpc_request *r) {
-  jsonrpc_return_success(r, "[%M]", jsonrpc_print_methods, r->userdata);
-}
-
-void jsonrpc_ctx_init(struct jsonrpc_ctx *ctx, mjson_print_fn_t response_cb,
-                      void *userdata) {
-  ctx->response_cb = response_cb;
-  ctx->userdata = userdata;
-  jsonrpc_ctx_export(ctx, MJSON_RPC_LIST_NAME, rpclist, ctx);
-}
-
-void jsonrpc_ctx_process_byte(struct jsonrpc_ctx *ctx, unsigned char ch,
-                              mjson_print_fn_t fn, void *p) {
-  if (ctx->in_len >= (int) sizeof(ctx->in)) ctx->in_len = 0;  // Overflow
-  if (ch == '\n') {  // If new line, parse frame
-    if (ctx->in_len > 1) jsonrpc_ctx_process(ctx, ctx->in, ctx->in_len, fn, p);
-    ctx->in_len = 0;
-  } else {
-    ctx->in[ctx->in_len] = ch;  // Append to the buffer
-    ctx->in_len++;
-  }
-}
-
-void jsonrpc_init(mjson_print_fn_t response_cb, void *userdata) {
-  jsonrpc_ctx_init(&jsonrpc_default_context, response_cb, userdata);
-}
-#endif  // MJSON_ENABLE_RPC
@@ -1,220 +0,0 @@
-// Copyright (c) 2018-2020 Cesanta Software Limited
-// All rights reserved
-//
-// Permission is hereby granted, free of charge, to any person obtaining a copy
-// of this software and associated documentation files (the "Software"), to deal
-// in the Software without restriction, including without limitation the rights
-// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-// copies of the Software, and to permit persons to whom the Software is
-// furnished to do so, subject to the following conditions:
-//
-// The above copyright notice and this permission notice shall be included in
-// all copies or substantial portions of the Software.
-//
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-// SOFTWARE.
-
-#ifndef MJSON_H
-#define MJSON_H
-
-#include <stdarg.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-
-#ifndef MJSON_ENABLE_PRINT
-#define MJSON_ENABLE_PRINT 1
-#endif
-
-#ifndef MJSON_ENABLE_RPC
-#define MJSON_ENABLE_RPC 1
-#endif
-
-#ifndef MJSON_ENABLE_BASE64
-#define MJSON_ENABLE_BASE64 1
-#endif
-
-#ifndef MJSON_ENABLE_MERGE
-#define MJSON_ENABLE_MERGE 0
-#elif MJSON_ENABLE_MERGE
-#define MJSON_ENABLE_NEXT 1
-#endif
-
-#ifndef MJSON_ENABLE_PRETTY
-#define MJSON_ENABLE_PRETTY 0
-#elif MJSON_ENABLE_PRETTY
-#define MJSON_ENABLE_NEXT 1
-#endif
-
-#ifndef MJSON_ENABLE_NEXT
-#define MJSON_ENABLE_NEXT 0
-#endif
-
-
-#ifndef MJSON_RPC_IN_BUF_SIZE
-#define MJSON_RPC_IN_BUF_SIZE 256
-#endif
-
-#ifndef MJSON_RPC_LIST_NAME
-#define MJSON_RPC_LIST_NAME "rpc.list"
-#endif
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-enum {
-  MJSON_ERROR_INVALID_INPUT = -1,
-  MJSON_ERROR_TOO_DEEP = -2,
-};
-
-enum mjson_tok {
-  MJSON_TOK_INVALID = 0,
-  MJSON_TOK_KEY = 1,
-  MJSON_TOK_STRING = 11,
-  MJSON_TOK_NUMBER = 12,
-  MJSON_TOK_TRUE = 13,
-  MJSON_TOK_FALSE = 14,
-  MJSON_TOK_NULL = 15,
-  MJSON_TOK_ARRAY = 91,
-  MJSON_TOK_OBJECT = 123,
-};
-#define MJSON_TOK_IS_VALUE(t) ((t) > 10 && (t) < 20)
-
-typedef int (*mjson_cb_t)(int ev, const char *s, int off, int len, void *ud);
-
-#ifndef MJSON_MAX_DEPTH
-#define MJSON_MAX_DEPTH 20
-#endif
-
-int mjson(const char *s, int len, mjson_cb_t cb, void *ud);
-enum mjson_tok mjson_find(const char *s, int len, const char *jp,
-                          const char **tokptr, int *toklen);
-int mjson_get_number(const char *s, int len, const char *path, double *v);
-int mjson_get_bool(const char *s, int len, const char *path, int *v);
-int mjson_get_string(const char *s, int len, const char *path, char *to, int n);
-int mjson_get_hex(const char *s, int len, const char *path, char *to, int n);
-
-#if MJSON_ENABLE_NEXT
-int mjson_next(const char *s, int n, int off, int *koff, int *klen, int *voff,
-               int *vlen, int *vtype);
-#endif
-
-#if MJSON_ENABLE_BASE64
-int mjson_get_base64(const char *s, int len, const char *path, char *to, int n);
-int mjson_base64_dec(const char *src, int n, char *dst, int dlen);
-#endif
-
-#if MJSON_ENABLE_PRINT
-typedef int (*mjson_print_fn_t)(const char *buf, int len, void *userdata);
-typedef int (*mjson_vprint_fn_t)(mjson_print_fn_t, void *, va_list *);
-
-struct mjson_fixedbuf {
-  char *ptr;
-  int size, len;
-};
-
-int mjson_printf(mjson_print_fn_t, void *, const char *fmt, ...);
-int mjson_vprintf(mjson_print_fn_t, void *, const char *fmt, va_list ap);
-int mjson_print_str(mjson_print_fn_t, void *, const char *s, int len);
-int mjson_print_int(mjson_print_fn_t, void *, int value, int is_signed);
-int mjson_print_long(mjson_print_fn_t, void *, long value, int is_signed);
-int mjson_print_buf(mjson_print_fn_t fn, void *, const char *buf, int len);
-
-int mjson_print_null(const char *ptr, int len, void *userdata);
-int mjson_print_file(const char *ptr, int len, void *userdata);
-int mjson_print_fixed_buf(const char *ptr, int len, void *userdata);
-int mjson_print_dynamic_buf(const char *ptr, int len, void *userdata);
-
-#if MJSON_ENABLE_PRETTY
-int mjson_pretty(const char *, int, const char *, mjson_print_fn_t, void *);
-#endif
-
-#if MJSON_ENABLE_MERGE
-int mjson_merge(const char *, int, const char *, int, mjson_print_fn_t, void *);
-#endif
-
-#endif  // MJSON_ENABLE_PRINT
-
-#if MJSON_ENABLE_RPC
-
-void jsonrpc_init(mjson_print_fn_t, void *userdata);
-int mjson_globmatch(const char *s1, int n1, const char *s2, int n2);
-
-struct jsonrpc_request {
-  const char *frame;    // Points to the whole frame
-  int frame_len;        // Frame length
-  const char *params;   // Points to the "params" in the request frame
-  int params_len;       // Length of the "params"
-  const char *id;       // Points to the "id" in the request frame
-  int id_len;           // Length of the "id"
-  const char *method;   // Points to the "method" in the request frame
-  int method_len;       // Length of the "method"
-  mjson_print_fn_t fn;  // Printer function
-  void *fndata;         // Printer function data
-  void *userdata;       // Callback's user data as specified at export time
-};
-
-struct jsonrpc_method {
-  const char *method;
-  int method_sz;
-  void (*cb)(struct jsonrpc_request *);
-  void *cbdata;
-  struct jsonrpc_method *next;
-};
-
-// Main RPC context, stores current request information and a list of
-// exported RPC methods.
-struct jsonrpc_ctx {
-  struct jsonrpc_method *methods;
-  void *userdata;
-  mjson_print_fn_t response_cb;
-  int in_len;
-  char in[MJSON_RPC_IN_BUF_SIZE];
-};
-
-// Registers function fn under the given name within the given RPC context
-#define jsonrpc_ctx_export(ctx, name, fn, ud)                                \
-  do {                                                                       \
-    static struct jsonrpc_method m = {(name), sizeof(name) - 1, (fn), 0, 0}; \
-    m.cbdata = (ud);                                                         \
-    m.next = (ctx)->methods;                                                 \
-    (ctx)->methods = &m;                                                     \
-  } while (0)
-
-void jsonrpc_ctx_init(struct jsonrpc_ctx *ctx, mjson_print_fn_t, void *);
-void jsonrpc_return_error(struct jsonrpc_request *r, int code,
-                          const char *message, const char *data_fmt, ...);
-void jsonrpc_return_success(struct jsonrpc_request *r, const char *result_fmt,
-                            ...);
-void jsonrpc_ctx_process(struct jsonrpc_ctx *ctx, const char *req, int req_sz,
-                         mjson_print_fn_t fn, void *fndata);
-void jsonrpc_ctx_process_byte(struct jsonrpc_ctx *ctx, unsigned char ch,
-                              mjson_print_fn_t fn, void *fndata);
-
-extern struct jsonrpc_ctx jsonrpc_default_context;
-
-#define jsonrpc_export(name, fn, ud) \
-  jsonrpc_ctx_export(&jsonrpc_default_context, (name), (fn), (ud))
-
-#define jsonrpc_process(buf, len, fn, data) \
-  jsonrpc_ctx_process(&jsonrpc_default_context, (buf), (len), (fn), (data))
-
-#define jsonrpc_process_byte(x, fn, data) \
-  jsonrpc_ctx_process_byte(&jsonrpc_default_context, (x), (fn), (data))
-
-#define JSONRPC_ERROR_INVALID -32700    /* Invalid JSON was received */
-#define JSONRPC_ERROR_NOT_FOUND -32601  /* The method does not exist */
-#define JSONRPC_ERROR_BAD_PARAMS -32602 /* Invalid params passed */
-#define JSONRPC_ERROR_INTERNAL -32603   /* Internal JSON-RPC error */
-
-#endif  // MJSON_ENABLE_RPC
-#ifdef __cplusplus
-}
-#endif
-#endif  // MJSON_H
@@ -1,76 +0,0 @@
-const {h, render, Component} = preact;
-const html = htm.bind(h);
-
-const Info = () => html`<div id="info">
-  This dashboard shows values kept in server memory. Many clients
-  can open this page. As soon as any client changes any value,
-  all clients update automatically.
-  <br/><br/>
-  The JS code that watches state changes, reconnects on network failures.
-  That means if server restarts, dashboard on all connected clients
-  refresh automatically.
-  <br/><br/>
-
-  You can use <code>curl</code> command-line utility:
-  <br/><code>curl localhost:8000/api/config/get</code>
-  <br/><code>curl localhost:8000/api/config/watch</code>
-  <br/><code>curl localhost:8000/api/config/set -d '{"a":123}'</code>
-</div>`;
-
-class Dashboard extends Component {
-  state = {value1: null, value2: null};
-  componentDidMount() {
-    axios.get('/api/config/get')
-        .then(r => this.setState(r.data))
-        .catch(e => console.log(e));
-    var self = this;
-    var f = function(reader) {
-      return reader.read().then(function(result) {
-        var data = String.fromCharCode.apply(null, result.value);
-        self.setState(JSON.parse(data));
-        // console.log(JSON.parse(data));
-        if (!result.done) return f(reader);
-      });
-    };
-    fetch('/api/config/watch')
-        .then(r => r.body.getReader())
-        .then(f)
-        .catch(e => setTimeout(x => self.componentDidMount(), 1000));
-  }
-  render(props, state) {
-    return html
-    `<div id="dashboard" style="display: flex; justify-content: flex-evenly;">
-        <div style="width:50%;text-align:center;">Value 1 (number):
-          <div style="font-size:140%;"><b>${state.value1}</b></div></div>
-        <div style="width:50%;text-align:center;">Value 2 (string):
-          <div style="font-size:140%;"><b>${state.value2}</b></div></div>
-    </div>`
-  }
-};
-
-class Form extends Component {
-  render(props, state) {
-    const onclick = ev => axios.post(
-        '/api/config/set', {value1: +state.value1, value2: state.value2});
-    // alert(JSON.stringify(state));
-    return html`<div id="form">
-      <div><b>Change values</b></div>
-      <table>
-        <tr><td>Value 1 (number):</td><td><input value=${state.value1}
-          onInput=${linkState(this, 'value1')} /></td></tr>
-        <tr><td>Value 2 (string):</td><td><input value=${state.value2}
-            onInput=${linkState(this, 'value2')}/></td></tr>
-        <tr><td></td>
-          <td><button onClick=${onclick}>Save values</button></td></tr>
-      </table>
-    </div>`
-  }
-};
-
-const App = () => html`<div id="container">
-  <${Info} />
-  <${Dashboard} />
-  <${Form} />
-</div>`;
-
-window.onload = () => render(h(App), document.body);
@@ -1,3 +0,0 @@
-/* axios v0.21.1 | (c) 2020 by Matt Zabriskie */
-!function(e,t){"object"==typeof exports&&"object"==typeof module?module.exports=t():"function"==typeof define&&define.amd?define([],t):"object"==typeof exports?exports.axios=t():e.axios=t()}(this,function(){return function(e){function t(r){if(n[r])return n[r].exports;var o=n[r]={exports:{},id:r,loaded:!1};return e[r].call(o.exports,o,o.exports,t),o.loaded=!0,o.exports}var n={};return t.m=e,t.c=n,t.p="",t(0)}([function(e,t,n){e.exports=n(1)},function(e,t,n){"use strict";function r(e){var t=new i(e),n=s(i.prototype.request,t);return o.extend(n,i.prototype,t),o.extend(n,t),n}var o=n(2),s=n(3),i=n(4),a=n(22),u=n(10),c=r(u);c.Axios=i,c.create=function(e){return r(a(c.defaults,e))},c.Cancel=n(23),c.CancelToken=n(24),c.isCancel=n(9),c.all=function(e){return Promise.all(e)},c.spread=n(25),c.isAxiosError=n(26),e.exports=c,e.exports.default=c},function(e,t,n){"use strict";function r(e){return"[object Array]"===R.call(e)}function o(e){return"undefined"==typeof e}function s(e){return 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@@ -1,18 +0,0 @@
-function linkState(component, key, eventPath) {
-  let path = key.split('.'), cache = component.__lsc || (component.__lsc = {});
-
-  return cache[key + eventPath] || (cache[key + eventPath] = function(e) {
-           let t = e && e.target || this, state = {}, obj = state,
-               v = typeof eventPath === 'string' ?
-               delve(e, eventPath) :
-               t.nodeName ? (t.type.match(/^che|rad/) ? t.checked : t.value) :
-                            e,
-               i = 0;
-           for (; i < path.length - 1; i++) {
-             obj = obj[path[i]] ||
-                 (obj[path[i]] = !i && component.state[path[i]] || {});
-           }
-           obj[path[i]] = v;
-           component.setState(state);
-         });
-}
@@ -1,2 +0,0 @@
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-//# sourceMappingURL=preact.min.js.map
@@ -1,6 +0,0 @@
-#container { margin-right: auto; margin-left: auto; max-width: 480px; }
-#info { background: #d0f0f0; border-radius: .5em; padding: 2em;  }
-#dashboard { background: #f0f0f0; border-radius: .5em; padding: 0.5em; max-height: 10em; overflow: auto; height: 100%; margin-top: 1em; }
-#form { background: #d0c0f0; border-radius: .5em; padding: 0.5em; max-height: 10em; overflow: auto; height: 100%; margin-top: 1em; }
-button { width: 100%; }
-button, select, input, label::before, textarea { outline: none; box-shadow:none !important; border: 1px solid #ccc !important; }
@@ -0,0 +1,47 @@
+PROG ?= example                   # Program we are building
+PACK ?= ./pack                    # Packing executable
+DELETE = rm -rf                   # Command to remove files
+OUT ?= -o $(PROG)                 # Compiler argument for output file
+SOURCES = main.c mongoose.c net.c packed_fs.c      # Source code files
+CFLAGS = -W -Wall -Wextra -g -I.  # Build options
+
+# Mongoose build options. See https://mongoose.ws/documentation/#build-options
+CFLAGS_MONGOOSE += -DMG_ENABLE_PACKED_FS=1
+
+FILES_TO_EMBED ?= $(wildcard web_root/*)
+
+ifeq ($(OS),Windows_NT)   # Windows settings. Assume MinGW compiler. To use VC: make CC=cl CFLAGS=/MD OUT=/Feprog.exe
+  PROG ?= example.exe           # Use .exe suffix for the binary
+  PACK = pack.exe               # Packing executable
+  CC = gcc                      # Use MinGW gcc compiler
+  CFLAGS += -lws2_32            # Link against Winsock library
+  DELETE = cmd /C del /Q /F /S  # Command prompt command to delete files
+  OUT ?= -o $(PROG)             # Build output
+  MAKE += WINDOWS=1 CC=$(CC)
+endif
+
+all: $(PROG)              # Default target. Build and run program
+	$(RUN) ./$(PROG) $(ARGS)
+
+# Before embedding files, gzip them to save space
+packed_fs.c: $(FILES_TO_EMBED) Makefile
+	$(CC) ../../test/pack.c -o $(PACK)
+ifeq ($(OS),Windows_NT)
+	$(PACK) $(FILES_TO_EMBED) > $@
+else
+	rm -rf tmp/web_root && mkdir tmp && cp -r web_root tmp/
+	find tmp -type f | xargs -n1 gzip
+	cd tmp && ../pack `find web_root -type f` > ../$@
+endif
+
+$(PROG): $(SOURCES)       # Build program from sources
+	$(CC) $(SOURCES) $(CFLAGS) $(CFLAGS_MONGOOSE) $(CFLAGS_EXTRA) $(OUT)
+
+clean:                    # Cleanup. Delete built program and all build artifacts
+	$(DELETE) $(PROG) *.o *.obj *.exe *.dSYM pack tmp mbedtls
+
+# see https://mongoose.ws/tutorials/tls/#how-to-build for TLS build options
+
+mbedtls:                  # Pull and build mbedTLS library
+	git clone --depth 1 -b v2.28.2 https://github.com/mbed-tls/mbedtls $@
+	$(MAKE) -C mbedtls/library
@@ -0,0 +1,29 @@
+# A complete device dashboard
+
+This example is a demonstration of how Mongoose Library could be integrated
+into an embedded device and provide a complete device dashboard with the
+following features:
+
+- Authentication: login-protected dashboard
+- Multiple logins with different permissions (admin and user)
+- Web UI is fully embedded into the server/firmware binary, and does not
+  need a filesystem to serve it. UI is resilient to FS problems
+- Administrators can change server settings
+- All changes are propagated to all connected clients
+- The device is connected to the external MQTT server
+- Logged in clients can send/receive messages via MQTT
+
+## Screenshots
+
+This is a login screen that prompts for user/password
+
+![](screenshots/login.webp)
+
+## Main dashboard
+
+The main dashboard page shows the interactive MQTT console
+
+![](screenshots/dashboard.webp)
+
+
+See a detailed tutorial at https://mongoose.ws/tutorials/device-dashboard/
@@ -0,0 +1 @@
+../../test/data/ca.pem
@@ -0,0 +1,24 @@
+// Copyright (c) 2020-2022 Cesanta Software Limited
+// All rights reserved
+
+#include "mongoose.h"
+
+const char *s_listening_url = "http://0.0.0.0:8000";
+const char *s_listening_surl = "https://0.0.0.0:8443";
+
+void device_dashboard_fn(struct mg_connection *, int, void *, void *);
+
+int main(void) {
+  struct mg_mgr mgr;
+  mg_log_set(MG_LL_DEBUG);  // Set debug log level
+  mg_mgr_init(&mgr);
+  mg_http_listen(&mgr, s_listening_url, device_dashboard_fn, NULL);
+  MG_INFO(("Listening on %s", s_listening_url));
+#if MG_ENABLE_MBEDTLS || MG_ENABLE_OPENSSL
+  mg_http_listen(&mgr, s_listening_surl, device_dashboard_fn, "");
+  MG_INFO(("Listening on %s", s_listening_surl));
+#endif
+  while (mgr.conns != NULL) mg_mgr_poll(&mgr, 500);
+  mg_mgr_free(&mgr);
+  return 0;
+}
@@ -0,0 +1 @@
+../../mongoose.c
@@ -0,0 +1 @@
+../../mongoose.h
@@ -0,0 +1,284 @@
+// Copyright (c) 2020-2022 Cesanta Software Limited
+// All rights reserved
+
+#include "mongoose.h"
+
+#if !defined(MQTT_SERVER)
+#if MG_ENABLE_MBEDTLS || MG_ENABLE_OPENSSL
+#define MQTT_SERVER "mqtts://broker.hivemq.com:8883"
+#else
+#define MQTT_SERVER "mqtt://broker.hivemq.com:1883"
+#endif
+#endif
+#define MQTT_PUBLISH_TOPIC "mg/my_device"
+#define MQTT_SUBSCRIBE_TOPIC "mg/#"
+
+// Certificate generation procedure:
+// openssl ecparam -name prime256v1 -genkey -noout -out key.pem
+// openssl req -new -key key.pem -x509 -nodes -days 3650 -out cert.pem
+static const char *s_ssl_cert =
+    "-----BEGIN CERTIFICATE-----\n"
+    "MIIBCTCBsAIJAK9wbIDkHnAoMAoGCCqGSM49BAMCMA0xCzAJBgNVBAYTAklFMB4X\n"
+    "DTIzMDEyOTIxMjEzOFoXDTMzMDEyNjIxMjEzOFowDTELMAkGA1UEBhMCSUUwWTAT\n"
+    "BgcqhkjOPQIBBggqhkjOPQMBBwNCAARzSQS5OHd17lUeNI+6kp9WYu0cxuEIi/JT\n"
+    "jphbCmdJD1cUvhmzM9/phvJT9ka10Z9toZhgnBq0o0xfTQ4jC1vwMAoGCCqGSM49\n"
+    "BAMCA0gAMEUCIQCe0T2E0GOiVe9KwvIEPeX1J1J0T7TNacgR0Ya33HV9VgIgNvdn\n"
+    "aEWiBp1xshs4iz6WbpxrS1IHucrqkZuJLfNZGZI=\n"
+    "-----END CERTIFICATE-----\n";
+
+static const char *s_ssl_key =
+    "-----BEGIN EC PRIVATE KEY-----\n"
+    "MHcCAQEEICBz3HOkQLPBDtdknqC7k1PNsWj6HfhyNB5MenfjmqiooAoGCCqGSM49\n"
+    "AwEHoUQDQgAEc0kEuTh3de5VHjSPupKfVmLtHMbhCIvyU46YWwpnSQ9XFL4ZszPf\n"
+    "6YbyU/ZGtdGfbaGYYJwatKNMX00OIwtb8A==\n"
+    "-----END EC PRIVATE KEY-----\n";
+
+static time_t s_boot_timestamp = 0;  // Updated by SNTP
+#ifndef DISABLE_ROUTING
+static struct mg_connection *s_sntp_conn = NULL;  // SNTP connection
+#endif
+
+// Define a system time alternative
+time_t ourtime(time_t *tp) {
+  time_t t = s_boot_timestamp + (time_t) (mg_millis() / 1000);
+  if (tp != NULL) *tp = t;
+  return t;
+}
+
+// Authenticated user.
+// A user can be authenticated by:
+//   - a name:pass pair
+//   - a token
+// When a user is shown a login screen, she enters a user:pass. If successful,
+// a server returns user info which includes token. From that point on,
+// client can use token for authentication. Tokens could be refreshed/changed
+// on a server side, forcing clients to re-login.
+struct user {
+  const char *name, *pass, *token;
+};
+
+// This is a configuration structure we're going to show on a dashboard
+static struct config {
+  char *url, *pub, *sub;  // MQTT settings
+} s_config;
+
+static struct mg_connection *s_mqtt = NULL;  // MQTT connection
+static bool s_connected = false;             // MQTT connection established
+
+// Try to update a single configuration value
+static void update_config(struct mg_str *body, const char *name, char **value) {
+  char buf[256];
+  if (mg_http_get_var(body, name, buf, sizeof(buf)) > 0) {
+    free(*value);
+    *value = strdup(buf);
+  }
+}
+
+// Parse HTTP requests, return authenticated user or NULL
+static struct user *getuser(struct mg_http_message *hm) {
+  // In production, make passwords strong and tokens randomly generated
+  // In this example, user list is kept in RAM. In production, it can
+  // be backed by file, database, or some other method.
+  static struct user users[] = {
+      {"admin", "pass0", "admin_token"},
+      {"user1", "pass1", "user1_token"},
+      {"user2", "pass2", "user2_token"},
+      {NULL, NULL, NULL},
+  };
+  char user[256], pass[256];
+  struct user *u;
+  mg_http_creds(hm, user, sizeof(user), pass, sizeof(pass));
+  if (user[0] != '\0' && pass[0] != '\0') {
+    // Both user and password is set, search by user/password
+    for (u = users; u->name != NULL; u++)
+      if (strcmp(user, u->name) == 0 && strcmp(pass, u->pass) == 0) return u;
+  } else if (user[0] == '\0') {
+    // Only password is set, search by token
+    for (u = users; u->name != NULL; u++)
+      if (strcmp(pass, u->token) == 0) return u;
+  }
+  return NULL;
+}
+
+// Notify all config watchers about the config change
+static void send_notification(struct mg_mgr *mgr, const char *fmt, ...) {
+  struct mg_connection *c;
+  for (c = mgr->conns; c != NULL; c = c->next) {
+    if (c->data[0] == 'W') {
+      va_list ap;
+      va_start(ap, fmt);
+      mg_ws_vprintf(c, WEBSOCKET_OP_TEXT, fmt, &ap);
+      va_end(ap);
+    }
+  }
+}
+
+// Send simulated metrics data to the dashboard, for chart rendering
+static void timer_metrics_fn(void *param) {
+  send_notification(param, "{%m:%m,%m:[%lu, %d]}", MG_ESC("name"),
+                    MG_ESC("metrics"), MG_ESC("data"),
+                    (unsigned long) ourtime(NULL),
+                    10 + (int) ((double) rand() * 10 / RAND_MAX));
+}
+
+#ifndef DISABLE_ROUTING
+
+// MQTT event handler function
+static void mqtt_fn(struct mg_connection *c, int ev, void *ev_data, void *fnd) {
+  if (ev == MG_EV_CONNECT && mg_url_is_ssl(s_config.url)) {
+    struct mg_tls_opts opts = {.ca = "ca.pem",
+                               .srvname = mg_url_host(s_config.url)};
+    mg_tls_init(c, &opts);
+  } else if (ev == MG_EV_MQTT_OPEN) {
+    s_connected = true;
+    c->is_hexdumping = 1;
+    struct mg_mqtt_opts sub_opts;
+    memset(&sub_opts, 0, sizeof(sub_opts));
+    sub_opts.topic = mg_str(s_config.sub);
+    sub_opts.qos = 2;
+
+    mg_mqtt_sub(s_mqtt, &sub_opts);
+    send_notification(c->mgr, "{%m:%m,%m:null}", MG_ESC("name"),
+                      MG_ESC("config"), MG_ESC("data"));
+    MG_INFO(("MQTT connected, server %s", MQTT_SERVER));
+  } else if (ev == MG_EV_MQTT_MSG) {
+    struct mg_mqtt_message *mm = ev_data;
+    send_notification(
+        c->mgr, "{%m:%m,%m:{%m: %m, %m: %m, %m: %d}}", MG_ESC("name"),
+        MG_ESC("message"), MG_ESC("data"), MG_ESC("topic"), mg_print_esc,
+        (int) mm->topic.len, mm->topic.ptr, MG_ESC("data"), mg_print_esc,
+        (int) mm->data.len, mm->data.ptr, MG_ESC("qos"), (int) mm->qos);
+  } else if (ev == MG_EV_MQTT_CMD) {
+    struct mg_mqtt_message *mm = (struct mg_mqtt_message *) ev_data;
+    MG_DEBUG(("%lu cmd %d qos %d", c->id, mm->cmd, mm->qos));
+  } else if (ev == MG_EV_CLOSE) {
+    s_mqtt = NULL;
+    if (s_connected) {
+      s_connected = false;
+      send_notification(c->mgr, "{%m:%m,%m:null}", MG_ESC("name"),
+                        MG_ESC("config"), MG_ESC("data"));
+    }
+  }
+  (void) fnd;
+}
+
+// Keep MQTT connection open - reconnect if closed
+static void timer_mqtt_fn(void *param) {
+  struct mg_mgr *mgr = (struct mg_mgr *) param;
+  if (s_mqtt == NULL) {
+    struct mg_mqtt_opts opts;
+    memset(&opts, 0, sizeof(opts));
+    s_mqtt = mg_mqtt_connect(mgr, s_config.url, &opts, mqtt_fn, NULL);
+  }
+}
+
+// SNTP connection event handler. When we get a response from an SNTP server,
+// adjust s_boot_timestamp. We'll get a valid time from that point on
+static void sfn(struct mg_connection *c, int ev, void *ev_data, void *fn_data) {
+  if (ev == MG_EV_SNTP_TIME) {
+    uint64_t t = *(uint64_t *) ev_data;
+    s_boot_timestamp = (time_t) ((t - mg_millis()) / 1000);
+    c->is_closing = 1;
+  } else if (ev == MG_EV_CLOSE) {
+    s_sntp_conn = NULL;
+  }
+  (void) fn_data;
+}
+
+static void timer_sntp_fn(void *param) {  // SNTP timer function. Sync up time
+  struct mg_mgr *mgr = (struct mg_mgr *) param;
+  if (s_sntp_conn == NULL && s_boot_timestamp == 0) {
+    s_sntp_conn = mg_sntp_connect(mgr, NULL, sfn, NULL);
+  }
+}
+
+#endif
+
+// HTTP request handler function
+void device_dashboard_fn(struct mg_connection *c, int ev, void *ev_data,
+                         void *fn_data) {
+  if (ev == MG_EV_OPEN && c->is_listening) {
+    mg_timer_add(c->mgr, 1000, MG_TIMER_REPEAT, timer_metrics_fn, c->mgr);
+#ifndef DISABLE_ROUTING
+    mg_timer_add(c->mgr, 1000, MG_TIMER_REPEAT, timer_mqtt_fn, c->mgr);
+    mg_timer_add(c->mgr, 1000, MG_TIMER_REPEAT, timer_sntp_fn, c->mgr);
+#endif
+    s_config.url = strdup(MQTT_SERVER);
+    s_config.pub = strdup(MQTT_PUBLISH_TOPIC);
+    s_config.sub = strdup(MQTT_SUBSCRIBE_TOPIC);
+  } else if (ev == MG_EV_ACCEPT && fn_data != NULL) {
+    struct mg_tls_opts opts = {.cert = s_ssl_cert, .certkey = s_ssl_key};
+    mg_tls_init(c, &opts);
+  } else if (ev == MG_EV_HTTP_MSG) {
+    struct mg_http_message *hm = (struct mg_http_message *) ev_data;
+    struct user *u = getuser(hm);
+    // MG_INFO(("%p [%.*s] auth %s", c->fd, (int) hm->uri.len, hm->uri.ptr,
+    // u ? u->name : "NULL"));
+    if (mg_http_match_uri(hm, "/api/hi")) {
+      mg_http_reply(c, 200, "", "hi\n");  // Testing endpoint
+    } else if (mg_http_match_uri(hm, "/api/debug")) {
+      int level = mg_json_get_long(hm->body, "$.level", MG_LL_DEBUG);
+      mg_log_set(level);
+      mg_http_reply(c, 200, "", "Debug level set to %d\n", level);
+    } else if (u == NULL && mg_http_match_uri(hm, "/api/#")) {
+      // All URIs starting with /api/ must be authenticated
+      mg_http_reply(c, 403, "", "Denied\n");
+    } else if (mg_http_match_uri(hm, "/api/config/get")) {
+#ifdef DISABLE_ROUTING
+      mg_http_reply(c, 200, NULL, "{%m:%m,%m:%m,%m:%m}\n", MG_ESC("url"),
+                    MG_ESC(s_config.url), MG_ESC("pub"), MG_ESC(s_config.pub),
+                    MG_ESC("sub"), MG_ESC(s_config.sub));
+#else
+      mg_http_reply(c, 200, NULL, "{%m:%m,%m:%m,%m:%m,%m:%s}\n", MG_ESC("url"),
+                    MG_ESC(s_config.url), MG_ESC("pub"), MG_ESC(s_config.pub),
+                    MG_ESC("sub"), MG_ESC(s_config.sub), MG_ESC("connected"),
+                    s_connected ? "true" : "false");
+#endif
+    } else if (mg_http_match_uri(hm, "/api/config/set")) {
+      // Admins only
+      if (strcmp(u->name, "admin") == 0) {
+        update_config(&hm->body, "url", &s_config.url);
+        update_config(&hm->body, "pub", &s_config.pub);
+        update_config(&hm->body, "sub", &s_config.sub);
+        if (s_mqtt) s_mqtt->is_closing = 1;  // Ask to disconnect from MQTT
+        send_notification(c->mgr, "{%m:%m,%m:null}", MG_ESC("name"),
+                          MG_ESC("config"), MG_ESC("data"));
+        mg_http_reply(c, 200, "", "ok\n");
+      } else {
+        mg_http_reply(c, 403, "", "Denied\n");
+      }
+    } else if (mg_http_match_uri(hm, "/api/message/send")) {
+      char buf[256];
+      if (s_connected &&
+          mg_http_get_var(&hm->body, "message", buf, sizeof(buf)) > 0) {
+        struct mg_mqtt_opts pub_opts;
+        memset(&pub_opts, 0, sizeof(pub_opts));
+        pub_opts.topic = mg_str(s_config.pub);
+        pub_opts.message = mg_str(buf);
+        pub_opts.qos = 2, pub_opts.retain = false;
+
+        mg_mqtt_pub(s_mqtt, &pub_opts);
+      }
+      mg_http_reply(c, 200, "", "ok\n");
+    } else if (mg_http_match_uri(hm, "/api/watch")) {
+      c->data[0] = 'W';  // Mark ourselves as a event listener
+      mg_ws_upgrade(c, hm, NULL);
+    } else if (mg_http_match_uri(hm, "/api/login")) {
+      mg_http_reply(c, 200, NULL, "{%m:%m,%m:%m}\n", MG_ESC("user"),
+                    MG_ESC(u->name), MG_ESC("token"), MG_ESC(u->token));
+    } else {
+      struct mg_http_serve_opts opts;
+      memset(&opts, 0, sizeof(opts));
+#if 1
+      opts.root_dir = "/web_root";
+      opts.fs = &mg_fs_packed;
+#else
+      opts.root_dir = "web_root";
+#endif
+      mg_http_serve_dir(c, ev_data, &opts);
+    }
+    MG_DEBUG(("%lu %.*s %.*s -> %.*s", c->id, (int) hm->method.len,
+              hm->method.ptr, (int) hm->uri.len, hm->uri.ptr, (int) 3,
+              &c->send.buf[9]));
+  }
+}
@@ -1,16 +1,12 @@
 <!DOCTYPE html>
 <html lang="en">
  <head>
-    <title>example</title>
+    <title>Device Dashboard</title>
    <meta charset="utf-8" />
    <meta http-equiv="X-UA-Compatible" content="IE=edge" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <link rel="stylesheet" href="style.css" />
-    <script src="preact.min.js"></script>
-    <script src="htm.min.js"></script>
-    <script src="linkstate.min.js"></script>
-    <script src="axios.min.js"></script>
-    <script src="app.js"></script>
  </head>
  <body></body>
+  <script type="module" src="main.js"></script>
 </html>
@@ -0,0 +1,385 @@
+'use strict';
+import {Component, h, html, render, useEffect, useState, useRef} from './preact.min.js';
+
+var devaddr = "address:port";
+
+const MaxMetricsDataPoints = 50;
+
+// This simple publish/subscribe is used to pass notifications that were
+// received from the server, to all child components of the app.
+var PubSub = (function() {
+  var handlers = {}, id = 0;
+  return {
+    subscribe: function(fn) {
+      handlers[id++] = fn;
+    },
+    unsubscribe: function(id) {
+      delete handlers[id];
+    },
+    publish: function(data) {
+      for (var k in handlers) handlers[k](data);
+    }
+  };
+})();
+
+const Nav = props => html`
+<div style="background: #333; padding: 0.5em; color: #fff;">
+  <div class="container d-flex">
+    <div style="flex: 1 1 auto; display: flex; align-items: center;">
+      <b>Your Product</b>
+    </div>
+    <div style="display: flex; align-items: center; flex: 0 0 auto; ">
+      <span>Logged in as:</span>
+      <span style="padding: 0 0.5em;"><img src="user.png" height="22" /></span>
+      <span>${props.user}</span>
+      <a class="btn" onclick=${props.logout}
+        style="margin-left: 1em; font-size: 0.8em; background: #8aa;">logout</a>
+    </div>
+  </div>
+</div>`;
+
+
+const Hero = props => html`
+<div class="section">
+<div style="margin-top: 1em; background: #eee; padding: 1em; border-radius: 0.5em; color: #777; ">
+  <h1 style="margin: 0.2em 0;">Interactive Device Dashboard</h1>
+
+  <p>
+  This device dashboard is developed using the modern and compact Preact framework,
+  in order to fit on very small devices. This is
+  a <a href="https://mongoose.ws/tutorials/http-server/">hybrid server</a> which
+  provides both static and dynamic content.  Static files, like CSS/JS/HTML
+  or images, are compiled into the server binary.
+
+  This UI uses the REST API implemented by the device, which you can examine
+  using  <code>curl</code> command-line utility:
+  </p>
+
+  <div><code>curl -u admin:pass0 ${devaddr}/api/config/get</code> </div>
+  <div><code>curl -u admin:pass0 ${devaddr}/api/config/set -d 'pub=mg/topic'</code> </div>
+  <div><code>curl -u admin:pass0 ${devaddr}/api/message/send -d 'message=hello'</code> </div>
+
+  <p>
+  The device can send notifications to this dashboard at anytime. Notifications
+  are sent over WebSocket at URI <code>/api/watch</code> as JSON strings: <code>{"name": "..", "data": ...}</code>
+  <div>Try <code>wscat --auth user1:pass1 --connect ws://${devaddr}/api/watch</code></div>
+  </p>
+</div>
+</div>`;
+
+const Login = function(props) {
+  const [user, setUser] = useState('');
+  const [pass, setPass] = useState('');
+  const login = ev =>
+      fetch(
+          '/api/login',
+          {headers: {Authorization: 'Basic ' + btoa(user + ':' + pass)}})
+          .then(r => r.json())
+          .then(r => r && props.login(r))
+          .catch(err => err);
+  return html`
+<div class="rounded border" style="max-width: 480px; margin: 0 auto; margin-top: 5em; background: #eee; ">
+  <div style="padding: 2em; ">
+    <h1 style="color: #666;">Device Dashboard Login </h1>
+    <div style="margin: 0.5em 0;">
+      <input type='text' placeholder='Name' style="width: 100%;"
+        oninput=${ev => setUser(ev.target.value)} value=${user} />
+    </div>
+    <div style="margin: 0.5em 0;">
+      <input type="password" placeholder="Password" style="width: 100%;"
+        oninput=${ev => setPass(ev.target.value)} value=${pass}
+        onchange=${login} />
+    </div>
+    <div style="margin: 1em 0;">
+      <button class="btn" style="width: 100%; background: #8aa;"
+        disabled=${!user || !pass} onclick=${login}> Login </button>
+    </div>
+    <div style="color: #777; margin-top: 2em;">
+      Valid logins: admin:pass0, user1:pass1, user2:pass2
+    </div>
+  </div>
+</div>`;
+};
+
+
+const Configuration = function(props) {
+  const [url, setUrl] = useState(props.config.url || '');
+  const [pub, setPub] = useState(props.config.pub || '');
+  const [sub, setSub] = useState(props.config.sub || '');
+
+  useEffect(() => {
+    setUrl(props.config.url);
+    setPub(props.config.pub);
+    setSub(props.config.sub);
+  }, [props.config]);
+
+  const update = (name, val) => fetch('/api/config/set', {
+                                  method: 'post',
+                                  body: `${name}=${encodeURIComponent(val)}`
+                                }).catch(err => err);
+  const updateurl = ev => update('url', url);
+  const updatepub = ev => update('pub', pub);
+  const updatesub = ev => update('sub', sub);
+
+  // console.log(props, [url, pub, sub]);
+  return html`
+<div class="section">
+  <h3 style="background: #c03434; color: #fff; padding: 0.4em;">
+    Device Configuration</h3>
+  <div style="margin: 0.5em 0; display: flex;">
+    <span class="addon nowrap">MQTT server:</span>
+    <input type="text" style="flex: 1 100%;"
+          value=${url} onchange=${updateurl}
+          oninput=${ev => setUrl(ev.target.value)} />
+    <button class="btn" disabled=${!url} onclick=${updateurl}
+      style="margin-left: 1em; background: #8aa;">Update</button>
+  </div>
+  <div style="margin: 0.5em 0; display: flex; ">
+    <span class="addon nowrap">Subscribe topic:</span>
+    <input type="text" style="flex: 1 100%;"
+        value=${sub} onchange=${updatesub}
+        oninput=${ev => setSub(ev.target.value)} />
+    <button class="btn" disabled=${!sub} onclick=${updatesub}
+      style="margin-left: 1em; background: #8aa;">Update</button>
+  </div>
+  <div style="margin: 0.5em 0; display: flex;">
+    <span class="addon nowrap">Publish topic:</span>
+    <input type="text" style="flex: 1 100%;"
+          value=${pub} onchange=${updatepub}
+          oninput=${ev => setPub(ev.target.value)} />
+    <button class="btn" disabled=${!pub} onclick=${updatepub}
+      style="margin-left: 1em; background: #8aa;">Update</button>
+  </div>
+  <div>
+    You can use <a href="http://www.hivemq.com/demos/websocket-client/">
+    HiveMQ Websocket web client</a> to send messages to this console.
+  </div>
+  <div class="msg">
+    The device keeps a persistent connection to the configured MQTT server.
+    Changes to this configuration are propagated to all dashboards: try
+    changing them in this dashboard and observe changes in other opened
+    dashboards.
+  </div><div class="msg">
+    Note: administrators can see this section and can change device
+    configuration, whilst users cannot.
+  </div>
+</div>`;
+};
+
+
+const Message = m => html`<div style="margin: 0.5em 0;">
+  <span class="qos">qos: ${m.message.qos} </span>
+  <span class="topic">topic: ${m.message.topic} </span>
+  <span class="data">data: ${m.message.data}</span>
+</div>`;
+
+const Messages = function(props) {
+  const [messages, setMessages] = useState([]);
+  const [txt, setTxt] = useState('');
+
+  useEffect(() => {
+    const id = PubSub.subscribe(function(msg) {
+      if (msg.name == 'message') setMessages(x => x.concat([msg.data]));
+    });
+    return PubSub.unsubscribe(id);
+  }, []);
+
+  const sendmessage = ev => fetch('/api/message/send', {
+                              method: 'post',
+                              body: `message=${encodeURIComponent(txt)}`
+                            }).then(r => setTxt(''));
+  const routing = "connected" in props.config;
+  const connstatus = !routing ? 'This device has no MQTT functionality' : props.config.connected ? 'connected' : 'disconnected';
+  return html`
+<div class="section">
+  <h3 style="background: #30c040; color: #fff; padding: 0.4em;">MQTT messages</h3>
+  <div>
+    MQTT server status: <b>${connstatus}</b>
+  </div>
+  <div style="height: 10em; overflow: auto; padding: 0.5em; " class="border">
+    ${messages.map(message => h(Message, {message}))}
+  </div>
+  <div style="margin: 0.5em 0; display: flex">
+    <span class="addon nowrap">Publish message:</span>
+    <input placeholder="type and press enter..." style="flex: 1 100%;"
+      value=${txt} onchange=${sendmessage} disabled=${!routing}
+      oninput=${ev => setTxt(ev.target.value)} />
+  </div>
+  <div class="msg">
+    The message gets passed to the device via REST. Then the device sends it to
+    the MQTT server over MQTT. All MQTT messages on a subscribed topic
+    received by the device, are propagated to this dashboard via /api/watch.
+  </div>
+</div>`;
+};
+
+// Expected arguments:
+// data: timeseries, e.g. [ [1654361352, 19], [1654361353, 18], ... ]
+// width, height, yticks, xticks, ymin, ymax, xmin, xmax
+const SVG = function(props) {
+  //            w
+  //   +---------------------+
+  //   |        h1           |
+  //   |    +-----------+    |
+  //   |    |           |    |  h
+  //   | w1 |           | w2 |
+  //   |    +-----------+    |
+  //   |         h2          |
+  //   +---------------------+
+  //
+  let w = props.width, h = props.height, w1 = 30, w2 = 0, h1 = 8, h2 = 18;
+  let yticks = props.yticks || 4, xticks = props.xticks || 5;
+  let data = props.data || [];
+  let ymin = props.ymin || 0;
+  let ymax = props.ymax || Math.max.apply(null, data.map(p => p[1]));
+  let xmin = props.xmin || Math.min.apply(null, data.map(p => p[0]));
+  let xmax = props.xmax || Math.max.apply(null, data.map(p => p[0]));
+
+  // Y-axis tick lines and labels
+  let yta = (new Array(yticks + 1)).fill(0).map((_, i) => i);  // indices
+  let yti = i => h - h2 - (h - h1 - h2) * i / yticks;          // index's Y
+  let ytv = i => (ymax - ymin) * i / yticks;
+  let ytl = y => html`<line x1=${w1} y1=${y} x2=${w} y2=${y} class="tick"/>`;
+  let ytt = (y, v) => html`<text x=0 y=${y + 5} class="label">${v}</text>`;
+
+  // X-axis tick lines and labels
+  let datefmt = unix => (new Date(unix * 1000)).toISOString().substr(14, 5);
+  let xta = (new Array(xticks + 1)).fill(0).map((_, i) => i);  // indices
+  let xti = i => w1 + (w - w1 - w2) * i / xticks;              // index's X
+  let xtv = i => datefmt(xmin + (xmax - xmin) * i / xticks);
+  let xtl = x => html`<path d="M ${x},${h1} L ${x},${h - h2}" class="tick"/>`;
+  let xtt = (x, v) =>
+      html`<text x=${x - 15} y=${h - 2} class="label">${v}</text>`;
+
+  // Transform data points array into coordinate
+  let dx = v => w1 + (v - xmin) / ((xmax - xmin) || 1) * (w - w1 - w2);
+  let dy = v => h - h2 - (v - ymin) / ((ymax - ymin) || 1) * (h - h1 - h2);
+  let dd = data.map(p => [Math.round(dx(p[0])), Math.round(dy(p[1]))]);
+  let ddl = dd.length;
+  // And plot the data as <path> element
+  let begin0 = ddl ? `M ${dd[0][0]},${dd[0][1]}` : `M 0,0`;
+  let begin = `M ${w1},${h - h2}`;  // Initial point
+  let end = ddl ? `L ${dd[ddl - 1][0]},${h - h2}` : `L ${w1},${h - h2}`;
+  let series = ddl ? dd.map(p => `L ${p[0]} ${p[1]}`) : [];
+
+  return html`
+<svg viewBox="0 0 ${w} ${h}">
+  <style>
+    .axis { stroke: #aaa; fill: none; }
+    .label { stroke: #aaa; font-size: 13px; }
+    .tick { stroke: #ccc; fill: none; stroke-dasharray: 5; }
+    .seriesbg { stroke: none; fill: rgba(200,225,255, 0.25)}
+    .series { stroke: #25a; fill: none; }
+  </style>
+  ${yta.map(i => ytl(yti(i)))}
+  ${yta.map(i => ytt(yti(i), ytv(i)))}
+  ${xta.map(i => xtl(xti(i)))}
+  ${data.length ? xta.map(i => xtt(xti(i), xtv(i))) : ''}
+  <path d="${begin} ${series.join(' ')} ${end}" class="seriesbg" />
+  <path d="${begin0} ${series.join(' ')}" class="series" />
+</svg>`;
+};
+
+
+const Chart = function(props) {
+  const [data, setData] = useState([]);
+  useEffect(() => {
+    const id = PubSub.subscribe(function(msg) {
+      if (msg.name != 'metrics') return;
+      setData(x => x.concat([msg.data]).splice(-MaxMetricsDataPoints));
+    });
+    return PubSub.unsubscribe(id);
+  }, []);
+
+  let xmax = 0, missing = MaxMetricsDataPoints - data.length;
+  if (missing > 0) xmax = Math.round(Date.now() / 1000) + missing;
+  return html`
+<div class="section">
+  <h3 style="background: #ec3; color: #fff; padding: 0.4em;">Data Chart</h3>
+  <div style="overflow: auto; padding: 0.5em;" class="">
+    <${SVG} height=240 width=600 ymin=0 ymax=20 xmax=${xmax} data=${data} />
+  </div>
+  <div class="msg">
+    This chart plots live sensor data, sent by the device via /api/watch.
+  </div>
+</div>`;
+};
+
+const App = function(props) {
+  const [user, setUser] = useState('');
+  const [config, setConfig] = useState({});
+
+  const getconfig = () =>
+      fetch('/api/config/get', {headers: {Authorization: ''}})
+          .then(r => r.json())
+          .then(r => setConfig(r))
+          .catch(err => console.log(err));
+
+  // Watch for notifications. As soon as a notification arrives, pass it on
+  // to all subscribed components
+  const watch = function() {
+    var l = window.location, proto = l.protocol.replace('http', 'ws');
+    var tid, wsURI = proto + '//' + l.host + '/api/watch'
+    var reconnect = function() {
+      var ws = new WebSocket(wsURI);
+      // ws.onopen = () => console.log('ws connected');
+      ws.onmessage = function(ev) {
+        try {
+          var msg = JSON.parse(ev.data);
+          PubSub.publish(msg);
+          // if (msg.name != 'metrics') console.log('ws->', msg);
+        } catch (e) {
+          console.log('Invalid ws frame:', ev.data);  // eslint-disable-line
+        }
+      };
+      ws.onclose = function() {
+        clearTimeout(tid);
+        tid = setTimeout(reconnect, 1000);
+        console.log('ws disconnected');
+      };
+    };
+    reconnect();
+  };
+
+  const login = function(u) {
+    document.cookie = `access_token=${u.token}; Secure, HttpOnly; SameSite=Lax; path=/; max-age=3600`;
+    setUser(u.user);
+    if (location.search.substring(1) == 'nows') {
+      // If query string is ?nows, then do not connect to websocket. For debug.
+    } else {
+      watch(); // Connect to websocket, receive constant graph updates
+    }
+    return getconfig();
+  };
+
+  const logout = ev => {
+    document.cookie = `access_token=; Secure, HttpOnly; SameSite=Lax; path=/; max-age=0`;
+    setUser('');
+  };
+
+  useEffect(() => {
+    // Called once at init time
+    PubSub.subscribe(msg => msg.name == 'config' && getconfig());
+    fetch('/api/login', {headers: {Authorization: ''}})
+        .then(r => r.json())
+        .then(r => login(r))
+        .catch(err => setUser(''));
+  }, []);
+
+  if (!user) return html`<${Login} login=${login} />`;
+
+  return html`
+<${Nav} user=${user} logout=${logout} />
+<div class="container">
+  <div class="row">
+    <div class="col col-6"><${Hero} /></div>
+    <div class="col col-6"><${Chart} /></div>
+    <div class="col col-6">
+      ${user == 'admin' && h(Configuration, {config})}
+    </div>
+    <div class="col col-6"><${Messages} config=${config} /></div>
+  </div>
+</div>`;
+};
+
+window.onload = () => render(h(App), document.body);
@@ -0,0 +1 @@
+var e,n,_,t,o,r,u,l={},i=[],c=/acit|ex(?:s|g|n|p|$)|rph|grid|ows|mnc|ntw|ine[ch]|zoo|^ord|itera/i;function s(e,n){for(var _ in n)e[_]=n[_];return e}function f(e){var n=e.parentNode;n&&n.removeChild(e)}function a(n,_,t){var o,r,u,l={};for(u in _)"key"==u?o=_[u]:"ref"==u?r=_[u]:l[u]=_[u];if(arguments.length>2&&(l.children=arguments.length>3?e.call(arguments,2):t),"function"==typeof n&&null!=n.defaultProps)for(u in n.defaultProps)void 0===l[u]&&(l[u]=n.defaultProps[u]);return p(n,l,o,r,null)}function p(e,t,o,r,u){var l={type:e,props:t,key:o,ref:r,__k:null,__:null,__b:0,__e:null,__d:void 0,__c:null,__h:null,constructor:void 0,__v:null==u?++_:u};return null!=n.vnode&&n.vnode(l),l}function h(e){return e.children}function d(e,n){this.props=e,this.context=n}function v(e,n){if(null==n)return e.__?v(e.__,e.__.__k.indexOf(e)+1):null;for(var _;n<e.__k.length;n++)if(null!=(_=e.__k[n])&&null!=_.__e)return _.__e;return"function"==typeof e.type?v(e):null}function y(e){var 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@@ -0,0 +1,43 @@
+* { box-sizing: border-box; }
+html, body { margin: 0; padding: 0; height: 100%; font: 16px sans-serif; }
+select, input, label::before, textarea { outline: none; box-shadow:none !important; border: 1px solid #ccc !important; }
+code, pre { color: #373; font-family: monospace; font-weight: bolder; font-size: smaller; background: #ddd; padding: 0.1em 0.3em; border-radius: 0.2em; }
+textarea, input, .addon { font-size: 15px; border: 1px solid #ccc; padding: 0.5em; }
+a, a:visited, a:active { color: #55f; }
+.addon { background: #eee;  min-width: 9em;}
+.btn {
+  background: #ccc; border-radius: 0.3em; border: 0; color: #fff; cursor: pointer;
+  display: inline-block; padding: 0.6em 2em; font-weight: bolder;
+}
+.btn[disabled] { opacity: 0.5; cursor: auto;}
+.smooth { transition: all .2s; }
+.container { margin: 0 20px; width: auto; }
+.d-flex { display: flex; }
+.d-none { display: none; }
+.border { border: 1px solid #ddd; }
+.rounded { border-radius: 0.5em; }
+.nowrap { white-space: nowrap; }
+.msg { background: #def; border-left: 5px solid #59d; padding: 0.5em; font-size: 90%; margin: 1em 0; }
+.section { margin: 0 1em; }
+.topic, .data, .qos {  padding: 0.2em 0.5em; border-radius: 0.4em; margin-right: 0.5em;  }
+.qos { background: #efa; }
+.topic { background: #fea; }
+.data { background: #aef; }
+
+/* Grid */
+.row { display: flex; flex-wrap: wrap; }
+.col { margin: 0; padding: 0; overflow: auto; }
+.col-12 { width: 100%; }
+.col-11 { width: 91.66%; }
+.col-10 { width: 83.33%; }
+.col-9 { width: 75%; }
+.col-8 { width: 66.66%; }
+.col-7 { width: 58.33%; }
+.col-6 { width: 50%; }
+.col-5 { width: 41.66%; }
+.col-4 { width: 33.33%; }
+.col-3 { width: 25%; }
+.col-2 { width: 16.66%; }
+.col-1 { width: 8.33%; }
+@media (min-width: 1310px) { .container { margin: auto; width: 1270px; } }
+@media (max-width: 920px) { .row .col { width: 100%; } }
@@ -0,0 +1,51 @@
+PROG ?= example                   # Program we are building
+DELETE = rm -rf                   # Command to remove files
+OUT ?= -o $(PROG)                 # Compiler argument for output file
+SOURCES = main.c mongoose.c packed_fs.c      # Source code files
+CFLAGS = -W -Wall -Wextra -g -I.  # Build options
+PACK = ./pack             # Utility to pack files into a packed filesystem
+
+# Mongoose build options. See https://mongoose.ws/documentation/#build-options
+CFLAGS_MONGOOSE += -DMG_ENABLE_PACKED_FS=1
+
+FILES_TO_EMBED ?= $(wildcard web_root/*)
+
+ifeq ($(OS),Windows_NT)   # Windows settings. Assume MinGW compiler. To use VC: make CC=cl CFLAGS=/MD OUT=/Feprog.exe
+  PROG ?= example.exe           # Use .exe suffix for the binary
+  CC = gcc                      # Use MinGW gcc compiler
+  CFLAGS += -lws2_32            # Link against Winsock library
+  DELETE = cmd /C del /Q /F /S  # Command prompt command to delete files
+  OUT ?= -o $(PROG)             # Build output
+  PACK = pack.exe
+endif
+
+all: $(PROG)              # Default target. Build and run program
+	$(RUN) ./$(PROG) $(ARGS)
+
+$(PROG): $(SOURCES) $(FILES_TO_EMBED)       # Build program from sources
+	$(CC) ../../test/pack.c -o $(PACK)
+	$(PACK) $(FILES_TO_EMBED) > packed_fs.c
+	$(CC) $(SOURCES) $(CFLAGS) $(CFLAGS_MONGOOSE) $(CFLAGS_EXTRA) $(OUT)
+
+clean:                    # Cleanup. Delete built program and all build artifacts
+	$(DELETE) $(PROG) *.dSYM $(PACK)
+
+.PHONY: compress expand gzipped plain all
+
+# See tutorial at https://mongoose.ws/tutorials/embedded-filesystem/#build-and-try
+gzipped: compress
+	$(MAKE) all
+
+plain: expand
+	$(MAKE) all
+
+compress:
+	for file in $(FILES_TO_EMBED) ; do \
+		gzip -q $$file ; \
+	done
+
+expand:
+	for file in $(FILES_TO_EMBED) ; do \
+		gunzip -q $$file ; \
+	done
+
@@ -0,0 +1 @@
+See detailed tutorial at https://mongoose.ws/tutorials/embedded-filesystem/
@@ -0,0 +1,28 @@
+// Copyright (c) 2022 Cesanta Software Limited
+// All rights reserved
+
+#include "mongoose.h"
+
+const char *s_listening_url = "http://0.0.0.0:8000";
+
+// HTTP request handler function
+void fn(struct mg_connection *c, int ev, void *ev_data, void *fn_data) {
+  if (ev == MG_EV_HTTP_MSG) {
+    struct mg_http_serve_opts opts = {
+        .root_dir = "/web_root",
+        .fs = &mg_fs_packed
+      };
+    mg_http_serve_dir(c, ev_data, &opts);
+  }
+  (void) fn_data;
+}
+
+int main(void) {
+  struct mg_mgr mgr;
+  mg_log_set(MG_LL_INFO);
+  mg_mgr_init(&mgr);
+  mg_http_listen(&mgr, s_listening_url, fn, NULL);
+  while (true) mg_mgr_poll(&mgr, 500);
+  mg_mgr_free(&mgr);
+  return 0;
+}
@@ -0,0 +1 @@
+../../mongoose.c
@@ -0,0 +1 @@
+../../mongoose.h
@@ -0,0 +1,13 @@
+<!DOCTYPE html>
+<html lang="en">
+  <head>
+    <meta name="description" content="Mongoose Embedded Filesytem example" />
+    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
+    <meta http-equiv="X-UA-Compatible" content="IE=edge">
+    <meta name="viewport" content="width=device-width, initial-scale=1">
+        <title>Mongoose Embedded Filesytem example</title>
+    <link rel="stylesheet" href="style.css" />
+  </head>
+  <body></body>
+  <script type="module" src="main.js"></script>
+</html>
@@ -0,0 +1,88 @@
+'use strict';
+import { h, html, render } from './preact.min.js';
+
+
+const X = function () {
+
+  return html`
+  <div class="container">
+    <h2 class="section">ABOUT US</h2>
+    <div class="row">
+      <div class="col-7">
+        <p>      
+          Cesanta Software Ltd. is headquartered in Dublin, Republic of Ireland.
+        </p>
+        <p></p>
+        Our story roots back to 2004, when Mongoose Web Server Library development started. <br>
+
+        As Mongoose Web Server grew in popularity and matured over the following years, in 2013 Cesanta was established to continue its development and 
+        provide support to our valued customers.
+        </p>
+        <p>We are proud to have among our customers many <i>Fortune 500</i> companies as well as medium and small size businesses.
+          Security and quality of our solutions is a paramount for us and the fact that Mongoose Web Server is used by NASA aboard the International Space Station is 
+          the best confirmation to it.</p>
+          <p>Since 2013, Cesanta has expanded its product portfolio. We develop and distribute embedded software and hardware with focus on connected products and the Internet of Things.</p>
+
+      </div>
+    </div>
+  </div>
+`;
+};
+
+const Y = function () {
+
+  return html`
+  <div class="container">
+    <h3 class="section">Among our products are:</h3>
+    <div class="row">
+      <div class="col-7">
+       <ul>
+         <li>
+           <a href="https://mongoose.ws/">Mongoose Web Server</a>
+           - an embedded web server and networking library
+         </li>
+         <li>
+           <a href="https://vcon.io/">VCON.io</a>
+           - Arduino-compatible boards with built-in firmware OTA updates
+           and management dashboard
+         </li>
+         <li>
+           <a href="https://mdash.net/">mDash.net</a>
+           - an all-in-one IoT Platform
+         </li>
+         <li>
+           <a href="https://mongoose-os.com">Mongoose OS</a>
+           - an operating system for low-power microcontrollers
+         </li>
+
+         <li>
+           <a href="https://github.com/cesanta/mjs">mJS</a>
+           - an embedded JavaScript engine for C/C++
+         </li>
+       </ul>
+      </div>
+      <div class="col-6">
+        <p><b>Our solutions are:</b></p>
+        <ul>
+          <li>integrated into thousands of commercial products</li>
+          <li>deployed to hundreds of millions devices in production environments</li>
+        </ul>
+      </div>
+    </div>
+  </div>
+`;
+};
+
+const App = function (props) {
+
+  return html`
+<h1>Basic Embedded Filesystem demo</h1>
+<div>
+  ${h(X)}
+</div>
+<div>
+  ${h(Y)}
+</div>`;
+};
+
+window.onload = () => render(h(App), document.body);
@@ -0,0 +1 @@
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@@ -0,0 +1,43 @@
+* { box-sizing: border-box; }
+html, body { margin: 0; padding: 0; height: 100%; font: 16px sans-serif; }
+select, input, label::before, textarea { outline: none; box-shadow:none !important; border: 1px solid #ccc !important; }
+code, pre { color: #373; font-family: monospace; font-weight: bolder; font-size: smaller; background: #ddd; padding: 0.1em 0.3em; border-radius: 0.2em; }
+textarea, input, .addon { font-size: 15px; border: 1px solid #ccc; padding: 0.5em; }
+a, a:visited, a:active { color: #55f; }
+.addon { background: #eee;  min-width: 9em;}
+.btn {
+  background: #ccc; border-radius: 0.3em; border: 0; color: #fff; cursor: pointer;
+  display: inline-block; padding: 0.6em 2em; font-weight: bolder;
+}
+.btn[disabled] { opacity: 0.5; cursor: auto;}
+.smooth { transition: all .2s; }
+.container { margin: 0 20px; width: auto; }
+.d-flex { display: flex; }
+.d-none { display: none; }
+.border { border: 1px solid #ddd; }
+.rounded { border-radius: 0.5em; }
+.nowrap { white-space: nowrap; }
+.msg { background: #def; border-left: 5px solid #59d; padding: 0.5em; font-size: 90%; margin: 1em 0; }
+.section { margin: 0 1em; }
+.topic, .data, .qos {  padding: 0.2em 0.5em; border-radius: 0.4em; margin-right: 0.5em;  }
+.qos { background: #efa; }
+.topic { background: #fea; }
+.data { background: #aef; }
+
+/* Grid */
+.row { display: flex; flex-wrap: wrap; }
+.col { margin: 0; padding: 0; overflow: auto; }
+.col-12 { width: 100%; }
+.col-11 { width: 91.66%; }
+.col-10 { width: 83.33%; }
+.col-9 { width: 75%; }
+.col-8 { width: 66.66%; }
+.col-7 { width: 58.33%; }
+.col-6 { width: 50%; }
+.col-5 { width: 41.66%; }
+.col-4 { width: 33.33%; }
+.col-3 { width: 25%; }
+.col-2 { width: 16.66%; }
+.col-1 { width: 8.33%; }
+@media (min-width: 1310px) { .container { margin: auto; width: 1270px; } }
+@media (max-width: 920px) { .row .col { width: 100%; } }
@@ -1,15 +0,0 @@
-THISDIR = $(realpath $(CURDIR))
-ROOTDIR = $(realpath $(CURDIR)/../..)
-
-all: example
-
-example: main/main.c Makefile
-	docker run --rm -v $(ROOTDIR):$(ROOTDIR) -w $(THISDIR) espressif/idf idf.py build
-
-COMPORT ?= /dev/cu.SLAB_USBtoUART
-ESPTOOL ?= esptool.py
-flash:
-	cd build && $(ESPTOOL) --chip esp32 -p $(COMPORT) -b 460800 --before=default_reset --after=hard_reset write_flash --flash_mode dio --flash_freq 40m --flash_size 2MB 0x8000 partition_table/partition-table.bin 0x1000 bootloader/bootloader.bin 0x100000 mongoose-esp32-example.bin
-
-clean:
-	rm -rf $(PROG) *.o *.dSYM *.gcov *.gcno *.gcda *.obj *.exe *.ilk *.pdb mongoose mongoose_* mongoose.* build sdkconfig
@@ -1,28 +0,0 @@
-# An example ESP32 application
-
-To build this application, follow these steps:
-
-1. Make sure you have Docker installed
-2. Clone whole mongoose repository on your machine:
-  ```sh
-  git clone --depth 1 https://github.com/cesanta/mongoose.git
-  ```
-3. Start command line or terminal, and go into the example's directory:
-  ```sh
-  cd mongoose/examples/esp32
-  ```
-4. Run `make`. This invokes a Docker-based build. A firmware will be built
-  in the `build/` directory:
-  ```sh
-  make
-  ```
-
-# Flashing built firmware
-
-If you have a real board to flash to, you can flash a built firmware.
-First, make sure to have `esptool.py` script installed on your workstation.
-Then, connect the board to your workstation and run the following command:
-
-```sh
-make flash COMPORT=YOUR_USB_PORT
-```
@@ -0,0 +1,38 @@
+THISDIR = $(realpath $(CURDIR))
+ROOTDIR = $(realpath $(CURDIR)/../../..)
+DOCKER ?= docker run --rm $(DA) -v $(ROOTDIR):$(ROOTDIR) -w $(THISDIR) espressif/idf
+CMD ?= idf.py build
+PORT ?= /dev/ttyUSB0
+
+all: example
+
+example:
+	true
+
+build: Makefile $(wildcard main/*)
+	$(DOCKER) $(CMD)
+
+flash:
+flash: CMD = idf.py flash
+flash: DA = --device $(PORT)
+flash: build
+
+.PHONY: build
+
+dashboard.hex: build
+	esputil mkhex \
+		0x8000 build/partition_table/partition-table.bin \
+		0x1000 build/bootloader/bootloader.bin \
+		0x100000 build/mongoose-esp32-example.bin > $@
+
+flash2: dashboard.hex
+	esputil -p $(PORT) -b 921600 -fp 0x220 flash dashboard.hex
+	esputil -p $(PORT) monitor
+
+ESPTOOL ?= esptool.py
+
+flash3:
+	cd build && $(ESPTOOL) --chip esp32 -p $(PORT) -b 460800 --before=default_reset --after=hard_reset write_flash --flash_mode dio --flash_freq 40m --flash_size 2MB 0x8000 partition_table/partition-table.bin 0x1000 bootloader/bootloader.bin 0x100000 mongoose-esp32-example.bin
+
+clean:
+	test -d build && $(DOCKER) rm -rf build sdkconfig || true
@@ -0,0 +1 @@
+See detailed tutorial at https://mongoose.ws/tutorials/esp32/device-dashboard
@@ -0,0 +1,7 @@
+idf_component_register(SRCS "main.c"
+                            "wifi.c"
+                            "net.c"
+                            "packed_fs.c"
+                            "mongoose.c")
+component_compile_options(-DMG_ENABLE_LINES)
+component_compile_options(-DMG_ENABLE_PACKED_FS)
@@ -0,0 +1,35 @@
+// Copyright (c) 2020 Cesanta Software Limited
+// All rights reserved
+
+#include "esp_spiffs.h"
+//#include "freertos/FreeRTOS.h"
+#include "mongoose.h"
+
+const char *s_listening_url = "http://0.0.0.0:80";
+void device_dashboard_fn(struct mg_connection *, int, void *, void *);
+
+#define WIFI_SSID "YOUR_WIFI_NETWORK_NAME"  // SET THIS!
+#define WIFI_PASS "YOUR_WIFI_PASSWORD"      // SET THIS!
+#define FS_ROOT "/spiffs"
+
+void app_main(void) {
+  // Mount filesystem
+  esp_vfs_spiffs_conf_t conf = {
+      .base_path = FS_ROOT, .max_files = 20, .format_if_mount_failed = true};
+  int res = esp_vfs_spiffs_register(&conf);
+  MG_INFO(("FS %s, %d", conf.base_path, res));
+  mg_file_printf(&mg_fs_posix, FS_ROOT "/hello.txt", "%s", "hello from ESP");
+
+  // Setup wifi. This function is implemented in wifi.c
+  // It blocks until connected to the configured WiFi network
+  void wifi_init(const char *ssid, const char *pass);
+  wifi_init(WIFI_SSID, WIFI_PASS);
+
+  // Connected to WiFi, now start HTTP server
+  struct mg_mgr mgr;
+  mg_log_set(MG_LL_DEBUG);  // Set log level
+  mg_mgr_init(&mgr);
+  MG_INFO(("Mongoose v%s on %s", MG_VERSION, s_listening_url));
+  mg_http_listen(&mgr, s_listening_url, device_dashboard_fn, NULL);
+  for (;;) mg_mgr_poll(&mgr, 1000);  // Infinite event loop
+}
@@ -0,0 +1 @@
+../../../../mongoose.h
@@ -0,0 +1 @@
+../../../device-dashboard/net.c
@@ -0,0 +1 @@
+../../../device-dashboard/packed_fs.c
@@ -35,14 +35,14 @@ static void event_handler(void *arg, esp_event_base_t event_base,
    if (s_retry_num < 3) {
      esp_wifi_connect();
      s_retry_num++;
-      LOG(LL_INFO, ("retry to connect to the AP"));
+      MG_INFO(("retry to connect to the AP"));
    } else {
      xEventGroupSetBits(s_wifi_event_group, WIFI_FAIL_BIT);
    }
-    LOG(LL_ERROR, ("connect to the AP fail"));
+    MG_ERROR(("connect to the AP fail"));
  } else if (event_base == IP_EVENT && event_id == IP_EVENT_STA_GOT_IP) {
    ip_event_got_ip_t *event = (ip_event_got_ip_t *) event_data;
-    LOG(LL_INFO, ("got ip:" IPSTR, IP2STR(&event->ip_info.ip)));
+    MG_INFO(("IP ADDRESS:" IPSTR, IP2STR(&event->ip_info.ip)));
    s_retry_num = 0;
    xEventGroupSetBits(s_wifi_event_group, WIFI_CONNECTED_BIT);
  }
@@ -81,18 +81,18 @@ void wifi_init(const char *ssid, const char *pass) {
  ESP_ERROR_CHECK(esp_wifi_set_mode(WIFI_MODE_STA));
  ESP_ERROR_CHECK(esp_wifi_set_config(ESP_IF_WIFI_STA, &c));
  ESP_ERROR_CHECK(esp_wifi_start());
-  LOG(LL_DEBUG, ("wifi_init_sta finished."));
+  MG_DEBUG(("wifi_init_sta finished."));

  EventBits_t bits = xEventGroupWaitBits(s_wifi_event_group,
                                         WIFI_CONNECTED_BIT | WIFI_FAIL_BIT,
                                         pdFALSE, pdFALSE, portMAX_DELAY);

  if (bits & WIFI_CONNECTED_BIT) {
-    LOG(LL_INFO, ("connected to ap SSID:%s password:%s", ssid, pass));
+    MG_INFO(("connected to ap SSID:%s password:%s", ssid, pass));
  } else if (bits & WIFI_FAIL_BIT) {
-    LOG(LL_ERROR, ("Failed to connect to SSID:%s, password:%s", ssid, pass));
+    MG_ERROR(("Failed to connect to SSID:%s, password:%s", ssid, pass));
  } else {
-    LOG(LL_ERROR, ("UNEXPECTED EVENT"));
+    MG_ERROR(("UNEXPECTED EVENT"));
  }

  /* The event will not be processed after unregister */
				`@@ -0,0 +1 @@`
				`See detailed tutorial at https://mongoose.ws/tutorials/captive-dns-server/`
				`@@ -1 +0,0 @@`
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