Fix #1550 - excladdrinuse

Remove mg_log_set_callback. Use MG_PUTCHAR macro instead

.github/issue_template.md

@@ -7,5 +7,6 @@
 # Environment
 
 - mongoose version: _X.Y_
-- OS: _?_
-- Compiler/IDE: _?_
+- Compiler/IDE and SDK: ZZZ version _X.Y_
+- Target hardware/board: _?_
+- Connectivity chip/module: _?_

.github/workflows/cifuzz.yml

@@ -0,0 +1,26 @@
+name: CIFuzz
+on: [pull_request]
+jobs:
+  Fuzzing:
+    runs-on: ubuntu-latest
+    steps:
+    - name: Build Fuzzers
+      id: build
+      uses: google/oss-fuzz/infra/cifuzz/actions/build_fuzzers@master
+      with:
+        oss-fuzz-project-name: 'mongoose'
+        dry-run: false
+        language: c++
+    - name: Run Fuzzers
+      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: failure() && steps.build.outcome == 'success'
+      with:
+        name: artifacts
+        path: ./out/artifacts

.github/workflows/test.yml

@@ -3,38 +3,49 @@ on: [push, pull_request]
 jobs:
   linux:
     runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        cc: [gcc, clang]
+        target: [test, test++, valgrind]
+        ssl: [MBEDTLS, OPENSSL]
+    name: linux ${{ matrix.target }} CC=${{ matrix.cc }} SSL=${{ matrix.ssl }}
+    env:
+      IPV6: 0
+      CC: ${{ matrix.cc }}
+      SSL: ${{ matrix.ssl }}
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v3
     - 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
+      run: sudo apt-get update ; sudo apt-get install libmbedtls-dev valgrind
+    - name: test
+      run: make ${{ matrix.target }}
+    - name: unamalgamated
+      run: make unamalgamated
   examples:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v3
     - name: Install packages
       run: sudo apt-get install libmbedtls-dev
     - name: examples
-      run: make ex
+      run: make clean examples
   macos:
     runs-on: macos-latest
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v3
     - name: Install packages
       run: HOMEBREW_NO_AUTO_UPDATE=1 brew install jq mbedtls openssl
     - name: make
-      run: make test++ upload-coverage IPV6=0
+      run: make test++ upload-coverage IPV6=0 ASAN_OPTIONS=
     - name: openssl
-      run: make test SSL=OPENSSL IPV6=0 OPENSSL=`echo /usr/local/Cellar/openssl*/*`
+      run: make test SSL=OPENSSL IPV6=0 ASAN_OPTIONS= OPENSSL=`echo /usr/local/Cellar/openssl*/*`
     - name: exports
       run: make mg_prefix
   windows:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v3
     - name: vc98
       run: make vc98
     - name: vc2017
@@ -46,6 +57,79 @@ jobs:
   arm:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v3
     - name: arm
       run: make arm
+  matrix_examples:
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        example:
+          - name: esp32
+            path: esp32
+          - name: esp8266
+            path: esp8266
+          - name: stm32-freertos-tcp
+            path: stm32/stm32-freertos-tcp
+          - name: stm32-nucleo-f746z
+            path: stm32/stm32-nucleo-f746z
+          - name: stm32-nucleo-f429z
+            path: stm32/stm32-nucleo-f429z
+          - name: stm32-nucleo-h743z
+            path: stm32/stm32-nucleo-h743z
+          - name: nxp-mimxrt1020-azurertos
+            path: nxp/nxp-mimxrt1020-azurertos
+          - name: nxp-frdmk66f-freertos
+            path: nxp/nxp-frdmk66f-freertos
+          - name: nxp-lpcxpresso54s018m-freertos
+            path: nxp/nxp-lpcxpresso54s018m-freertos
+          - name: nxp-mimxrt1020-freertos
+            path: nxp/nxp-mimxrt1020-freertos
+          - name: nxp-evkbimxrt1050-lwip-freertos
+            path: nxp/nxp-evkbimxrt1050-lwip-freertos
+          - name: nxp-evkmimxrt1020-lwip-freertos
+            path: nxp/nxp-evkmimxrt1020-lwip-freertos
+          - name: nxp-evkmimxrt1024-lwip-freertos
+            path: nxp/nxp-evkmimxrt1024-lwip-freertos
+          - name: nxp-evkmimxrt1060-lwip-freertos
+            path: nxp/nxp-evkmimxrt1060-lwip-freertos
+          - name: nxp-evkmimxrt1064-lwip-freertos
+            path: nxp/nxp-evkmimxrt1064-lwip-freertos
+          - name: nxp-evkmimxrt1160-cm7-lwip-freertos
+            path: nxp/nxp-evkmimxrt1160-cm7-lwip-freertos
+          - name: nxp-evkmimxrt1170-cm7-lwip-freertos
+            path: nxp/nxp-evkmimxrt1170-cm7-lwip-freertos
+          - name: nxp-frdmk64f-lwip-freertos
+            path: nxp/nxp-frdmk64f-lwip-freertos
+          - name: nxp-frdmk66f-lwip-freertos
+            path: nxp/nxp-frdmk66f-lwip-freertos
+          - name: nxp-lpcxpresso54018-lwip-freertos
+            path: nxp/nxp-lpcxpresso54018-lwip-freertos
+          - name: nxp-lpcxpresso54608-lwip-freertos
+            path: nxp/nxp-lpcxpresso54608-lwip-freertos
+          - name: nxp-lpcxpresso54618-lwip-freertos
+            path: nxp/nxp-lpcxpresso54618-lwip-freertos
+          - name: nxp-lpcxpresso54628-lwip-freertos
+            path: nxp/nxp-lpcxpresso54628-lwip-freertos
+          - name: nxp-twrk65f180m-lwip-freertos
+            path: nxp/nxp-twrk65f180m-lwip-freertos
+          - name: nxp-twrkv58f220m-lwip-freertos
+            path: nxp/nxp-twrkv58f220m-lwip-freertos
+          - name: infineon-xmc4700_4800-lwip-rtx-rtos
+            path: infineon/infineon-xmc4700_4800-lwip-rtx-rtos
+          - name: ti
+            path: ti/ti-ek-tm4c1294xl-http-server
+          - name: nucleo_f746zg-zephyr-http-client
+            path: zephyr/http-client
+          - name: nucleo_f746zg-zephyr-http-server
+            path: zephyr/http-server
+          - name: nucleo_f746zg-zephyr-mqtt-aws-client
+            path: zephyr/mqtt-aws-client
+          - name: nucleo_f746zg-zephyr-websocket-server
+            path: zephyr/websocket-server             
+    name: ${{ matrix.example.name }}
+    steps:
+      - uses: actions/checkout@v3
+      - name: ${{ matrix.example.name }}
+        run: make -C examples/${{ matrix.example.path }} build

LICENSE

@@ -1,5 +1,5 @@
 Copyright (c) 2004-2013 Sergey Lyubka
-Copyright (c) 2013-2020 Cesanta Software Limited
+Copyright (c) 2013-2021 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/>.

Makefile

@@ -1,98 +1,133 @@
-SRCS = $(wildcard src/*.c)
+SRCS = mongoose.c test/unit_test.c test/packed_fs.c
 HDRS = $(wildcard src/*.h)
-DEFS ?= -DMG_MAX_HTTP_HEADERS=5 -DMG_ENABLE_LINES -DMG_ENABLE_DIRECTORY_LISTING=1 -DMG_ENABLE_SSI=1
-WARN ?= -W -Wall -Werror -Wshadow -Wdouble-promotion -fno-common -Wconversion
+DEFS ?= -DMG_MAX_HTTP_HEADERS=7 -DMG_ENABLE_LINES -DMG_ENABLE_PACKED_FS=1 -DMG_ENABLE_SSI=1
+C_WARN ?= -Wmissing-prototypes -Wstrict-prototypes
+WARN ?= -W -Wall -Werror -Wshadow -Wdouble-promotion -fno-common -Wconversion -Wundef $(C_WARN)
 OPTS ?= -O3 -g3
+VALGRIND_OPTS ?= -O0 -g3
 INCS ?= -Isrc -I.
-CFLAGS ?= $(OPTS) $(WARN) $(INCS) $(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
-ARM = docker run -v $(CDIR):$(CDIR) -w $(CDIR) mdashnet/armgcc
+CWD ?= $(realpath $(CURDIR))
+DOCKER ?= docker run --rm -e Tmp=. -e WINEDEBUG=-all -v $(CWD):$(CWD) -w $(CWD)
 VCFLAGS = /nologo /W3 /O2 /I. $(DEFS) $(TFLAGS)
-CLANG ?= clang # /usr/local/opt/llvm\@9/bin/clang
 IPV6 ?= 1
-ASAN_OPTIONS ?=
-EXAMPLES := $(wildcard examples/*)
-EXAMPLE_TARGET ?= example
+ASAN ?= -fsanitize=address,undefined -fno-sanitize-recover=all
+ASAN_OPTIONS ?= detect_leaks=1
+EXAMPLES := $(dir $(wildcard examples/*/Makefile))
 PREFIX ?= /usr/local
-SOVERSION = 7.2
-.PHONY: ex test
+VERSION ?= $(shell cut -d'"' -f2 src/version.h)
+COMMON_CFLAGS ?= $(WARN) $(INCS) $(DEFS) -DMG_ENABLE_IPV6=$(IPV6) $(TFLAGS) $(EXTRA)
+CFLAGS ?= $(OPTS) $(ASAN) $(COMMON_CFLAGS)
+VALGRIND_CFLAGS ?= $(VALGRIND_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
+.PHONY: examples test valgrind
 
 ifeq "$(SSL)" "MBEDTLS"
-MBEDTLS ?= /usr
+MBEDTLS ?= /usr/local
 CFLAGS  += -DMG_ENABLE_MBEDTLS=1 -I$(MBEDTLS)/include -I/usr/include
 LDFLAGS ?= -L$(MBEDTLS)/lib -lmbedtls -lmbedcrypto -lmbedx509
 endif
 ifeq "$(SSL)" "OPENSSL"
-OPENSSL ?= /usr
+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: mg_prefix unamalgamated unpacked test test++ valgrind arm examples vc98 vc2017 mingw mingw++ linux linux++ fuzz
 
-ex:
-	@for X in $(EXAMPLES); do $(MAKE) -C $$X $(EXAMPLE_TARGET); done
+examples:
+	@for X in $(EXAMPLES); do test -f $$X/Makefile || continue; $(MAKE) -C $$X example || exit 1; done
+
+test/packed_fs.c: Makefile src/ssi.h test/fuzz.c test/data/a.txt
+	$(CC) $(CFLAGS) test/pack.c -o pack
+	./pack Makefile src/ssi.h test/fuzz.c test/data/a.txt test/data/range.txt > $@
+
+DIR ?= test/data/
+OUT ?= fs_packed.c
+mkfs:
+	$(CC) $(CFLAGS) test/pack.c -o pack
+	./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++
+test++: CC = g++
+test++: C_WARN =
 test++: WARN += -Wno-shadow -Wno-missing-field-initializers -Wno-deprecated
 test++: test
 
-# 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
-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
+musl: test
+musl: ASAN =
+musl: WARN += -Wno-sign-conversion
+musl: CC = $(DOCKER) mdashnet/cc1 gcc
 
-# 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
+# Make sure we can build from an unamalgamated sources
+unamalgamated: $(HDRS) Makefile test/packed_fs.c
+	$(CC) src/*.c test/packed_fs.c test/unit_test.c $(CFLAGS) $(LDFLAGS) -g -o unit_test
+
+unpacked:
+	$(CC) -I. mongoose.c test/unit_test.c -o $@
+
+fuzzer: mongoose.c mongoose.h Makefile test/fuzz.c
+	clang++ mongoose.c test/fuzz.c $(WARN) $(INCS) $(TFLAGS) $(EXTRA) -DMG_ENABLE_LINES -fsanitize=fuzzer,signed-integer-overflow,address -Wno-deprecated -o $@
+
+fuzz: fuzzer
+	$(RUN) ./fuzzer
+
+unit_test: Makefile mongoose.h $(SRCS)
+	$(CC) $(SRCS) $(CFLAGS) -coverage $(LDFLAGS) -g -o unit_test
+
+# make CC=/usr/local/opt/llvm\@8/bin/clang ASAN_OPTIONS=detect_leaks=1
+test: unit_test
+	ASAN_OPTIONS=$(ASAN_OPTIONS) $(RUN) ./unit_test
 
 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
 
+valgrind_unit_test: Makefile mongoose.h $(SRCS)
+	$(CC) $(SRCS) $(VALGRIND_CFLAGS) -coverage $(LDFLAGS) -g -o valgrind_unit_test
+
+valgrind: valgrind_unit_test
+	$(VALGRIND_RUN) ./valgrind_unit_test
+
 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
 
+arm: mongoose.h $(SRCS)
+	$(DOCKER) mdashnet/armgcc arm-none-eabi-gcc -mcpu=cortex-m3 -mthumb $(SRCS) test/mongoose_custom.c -Itest -DMG_ARCH=MG_ARCH_NEWLIB $(OPTS) $(WARN) $(INCS) $(DEFS) -o unit_test -nostartfiles --specs nosys.specs -e 0
+
+riscv: mongoose.h $(SRCS)
+	$(DOCKER) mdashnet/riscv riscv-none-elf-gcc -march=rv32imc -mabi=ilp32 $(SRCS) test/mongoose_custom.c -Itest -DMG_ARCH=MG_ARCH_NEWLIB $(OPTS) $(WARN) $(INCS) $(DEFS) -o 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
+vc98: Makefile mongoose.h $(SRCS)
+	$(DOCKER) mdashnet/vc98 wine cl $(SRCS) $(VCFLAGS) ws2_32.lib /Fe$@.exe
+	$(DOCKER) mdashnet/vc98 wine $@.exe
 
 #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
+vc2017: Makefile mongoose.h $(SRCS)
+	$(DOCKER) mdashnet/vc2017 wine64 cl $(SRCS) $(VCFLAGS) ws2_32.lib /Fe$@.exe
+	$(DOCKER) mdashnet/vc2017 wine64 $@.exe
 
-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
+mingw: Makefile mongoose.h $(SRCS)
+	$(DOCKER) mdashnet/mingw i686-w64-mingw32-gcc $(SRCS) -W -Wall -Werror -I. $(DEFS) -lwsock32 -o test.exe
+	$(DOCKER) mdashnet/vc98 wine test.exe
 
-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
+mingw++: Makefile mongoose.h $(SRCS)
+	$(DOCKER) mdashnet/mingw i686-w64-mingw32-g++ $(SRCS) -W -Wall -Werror -I. $(DEFS) -lwsock32 -o test.exe
   # Note: for some reason, a binary built with mingw g++, fails to run
 
-#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
+linux: IPV6=0
+linux: Makefile mongoose.h $(SRCS)
+	$(DOCKER) mdashnet/cc2 gcc $(SRCS) $(CFLAGS) $(LDFLAGS) -o unit_test_gcc
+	$(DOCKER) mdashnet/cc2 ./unit_test_gcc
 
 linux++: CC = g++
 linux++: WARN += -Wno-missing-field-initializers
@@ -100,26 +135,23 @@ linux++: linux
 
 linux-libs: CFLAGS += -fPIC
 linux-libs: mongoose.o
-	$(CC) mongoose.o $(LDFLAGS) -shared -o libmongoose.so.$(SOVERSION)
+	$(CC) mongoose.o $(LDFLAGS) -shared -o libmongoose.so.$(VERSION)
 	$(AR) rcs libmongoose.a mongoose.o
 
 install: linux-libs
-	install -Dm644 libmongoose.a libmongoose.so.$(SOVERSION) $(DESTDIR)$(PREFIX)/lib
-	ln -s libmongoose.so.$(SOVERSION) $(DESTDIR)$(PREFIX)/lib/libmongoose.so
+	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.$(SOVERSION) $(DESTDIR)$(PREFIX)/include/mongoose.h $(DESTDIR)$(PREFIX)/lib/libmongoose.so
+	rm -rf $(DESTDIR)$(PREFIX)/lib/libmongoose.a $(DESTDIR)$(PREFIX)/lib/libmongoose.so.$(VERSION) $(DESTDIR)$(PREFIX)/include/mongoose.h $(DESTDIR)$(PREFIX)/lib/libmongoose.so
 
-arm: Makefile mongoose.c mongoose.h test/unit_test.c
-	$(ARM) arm-none-eabi-gcc mongoose.c -c -Itest -DMG_ARCH=MG_ARCH_CUSTOM $(OPTS) $(WARN) $(INCS) -DMG_MAX_HTTP_HEADERS=5 -DMG_ENABLE_LINES -DMG_ENABLE_DIRECTORY_LISTING=0 -DMG_ENABLE_SSI=1
-
-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))> $@
+mongoose.c: Makefile $(wildcard src/*)
+	(cat src/license.h; echo; echo '#include "mongoose.h"' ; (for F in src/*.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,,'; echo; echo '#ifdef __cplusplus'; echo '}'; echo '#endif'; echo '#endif  // MONGOOSE_H')> $@
+	(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/config.h src/str.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/mip.h | sed -e 's,#include ".*,,' -e 's,^#pragma once,,'; echo; echo '#ifdef __cplusplus'; echo '}'; echo '#endif'; echo '#endif  // MONGOOSE_H')> $@
 
-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-*
+clean:
+	rm -rf $(PROG) *.o *.dSYM unit_test* valgrind_unit_test* ut fuzzer *.gcov *.gcno *.gcda *.obj *.exe *.ilk *.pdb slow-unit* _CL_* infer-out data.txt crash-* test/packed_fs.c pack unpacked
+	@for X in $(EXAMPLES); do $(MAKE) -C $$X clean; done

README.md

@@ -21,7 +21,8 @@ robust, and easy. Features include:
 - Source code is both ISO C and ISO C++ compliant
 - Works with any network stack with socket API, like LwIP or FreeRTOS-Plus-TCP
 - Very easy to integrate: just copy `mongoose.c` and `mongoose.h` files to your build tree
-- Detailed [documentation](https://cesanta.com/docs/)
+- Detailed [documentation](https://mongoose.ws/documentation/) and
+  [tutorials](https://mongoose.ws/tutorials/)
 
 
 # Commercial use
@@ -31,15 +32,11 @@ robust, and easy. Features include:
   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://cesanta.com/case-studies.html) from our respected
-  customers like Schneider Electric (industrial automation), Broadcom (semiconductors), Schenck Process
-  (industrial engineering), and others
-- See [Testimonials](https://cesanta.com/testimonials.html) from engineers that
-  integrated Mongoose in their commercial products
-- We provide [commercial licensing](https://cesanta.com/licensing.html),
-  [support](https://cesanta.com/support.html), consultancy and integration
-  assistance - don't hesitate to
-  [contact us](https://www.cesanta.com/contact.html)
+- 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/)
 
 
 # Security
@@ -70,21 +67,14 @@ We take security seriously:
 # Supplement software
 
 This software is often used together with Mongoose:
-- [mjson](https://github.com/cesanta/mjson) - a JSON parser. Used to implement
+- [mjson](https://github.com/cesanta/mjson) - a JSON parser, emitter and
+  JSON-RPC engine. Used to implement
   RESTful APIs that use JSON, or implement data exchange (e.g. over MQTT
   or Websocket) that use JSON for data encapsulation
-- [elk](https://github.com/cesanta/elk) - a tiny JavaScript interpreter.
-  Used to implement scripting support for customers
+- [elk](https://github.com/cesanta/elk) - a tiny JavaScript engine.
+  Used to implement scripting support
 
 
-# Precompiled web server binary
-
-We have built a ready-to-go, precompiled web server binary for Windows
-and Mac. It is a great tool for sharing your files or website. It has
-a unique feature - an ability to share your local files via a global URL.
-
-Interested? Go to [download](https://mongoose.ws/)
-
 # Contributions
 
 Contributions are welcome! Please follow the guidelines below:

drivers/README.md

@@ -0,0 +1,2 @@
+# This is a collection of low-level drivers for the experimental
+# built-in TCP/IP stack

drivers/mip_driver_stm32.c

@@ -0,0 +1,140 @@
+// Copyright (c) 2022 Cesanta Software Limited
+// All rights reserved
+
+#include "mip_driver_stm32.h"
+#include <stdint.h>
+#include <stdio.h>
+#include <string.h>
+
+struct eth {
+  uint32_t MACCR, MACFFR, MACHTHR, MACHTLR, MACMIIAR, MACMIIDR, MACFCR,
+      MACVLANTR, RESERVED0[2], MACRWUFFR, MACPMTCSR, RESERVED1, MACDBGR, MACSR,
+      MACIMR, MACA0HR, MACA0LR, MACA1HR, MACA1LR, MACA2HR, MACA2LR, MACA3HR,
+      MACA3LR, RESERVED2[40], MMCCR, MMCRIR, MMCTIR, MMCRIMR, MMCTIMR,
+      RESERVED3[14], MMCTGFSCCR, MMCTGFMSCCR, RESERVED4[5], MMCTGFCR,
+      RESERVED5[10], MMCRFCECR, MMCRFAECR, RESERVED6[10], MMCRGUFCR,
+      RESERVED7[334], PTPTSCR, PTPSSIR, PTPTSHR, PTPTSLR, PTPTSHUR, PTPTSLUR,
+      PTPTSAR, PTPTTHR, PTPTTLR, RESERVED8, PTPTSSR, PTPPPSCR, RESERVED9[564],
+      DMABMR, DMATPDR, DMARPDR, DMARDLAR, DMATDLAR, DMASR, DMAOMR, DMAIER,
+      DMAMFBOCR, DMARSWTR, RESERVED10[8], DMACHTDR, DMACHRDR, DMACHTBAR,
+      DMACHRBAR;
+};
+#define ETH ((struct eth *) 0x40028000)
+
+#define BIT(x) (1UL << (x))
+#define ETH_PKT_SIZE 1540  // Max frame size
+#define ETH_DESC_CNT 4     // Descriptors count
+#define ETH_DS 4           // Descriptor size (words)
+
+static uint32_t s_rxdesc[ETH_DESC_CNT][ETH_DS];      // RX descriptors
+static uint32_t s_txdesc[ETH_DESC_CNT][ETH_DS];      // TX descriptors
+static uint8_t s_rxbuf[ETH_DESC_CNT][ETH_PKT_SIZE];  // RX ethernet buffers
+static uint8_t s_txbuf[ETH_DESC_CNT][ETH_PKT_SIZE];  // TX ethernet buffers
+static void (*s_rx)(void *, size_t, void *);         // Recv callback
+static void *s_rxdata;                               // Recv callback data
+static void *s_userdata;                             // Driver data
+enum { PHY_ADDR = 0, PHY_BCR = 0, PHY_BSR = 1 };     // PHY constants
+
+static inline void spin(volatile uint32_t count) {
+  while (count--) asm("nop");
+}
+
+uint32_t eth_read_phy(uint8_t addr, uint8_t reg) {
+  ETH->MACMIIAR &= (7 << 2);
+  ETH->MACMIIAR |= ((uint32_t) addr << 11) | ((uint32_t) reg << 6);
+  ETH->MACMIIAR |= BIT(0);
+  while (ETH->MACMIIAR & BIT(0)) spin(1);
+  return ETH->MACMIIDR;
+}
+
+void eth_write_phy(uint8_t addr, uint8_t reg, uint32_t val) {
+  ETH->MACMIIDR = val;
+  ETH->MACMIIAR &= (7 << 2);
+  ETH->MACMIIAR |= ((uint32_t) addr << 11) | ((uint32_t) reg << 6) | BIT(1);
+  ETH->MACMIIAR |= BIT(0);
+  while (ETH->MACMIIAR & BIT(0)) spin(1);
+}
+
+void mip_driver_stm32_init(void *userdata) {
+  s_userdata = userdata;
+
+  // Init RX descriptors
+  for (int i = 0; i < ETH_DESC_CNT; i++) {
+    s_rxdesc[i][0] = BIT(31);                       // Own
+    s_rxdesc[i][1] = sizeof(s_rxbuf[i]) | BIT(14);  // 2nd address chained
+    s_rxdesc[i][2] = (uint32_t) s_rxbuf[i];         // Point to data buffer
+    s_rxdesc[i][3] = (uint32_t) s_rxdesc[(i + 1) % ETH_DESC_CNT];  // Chain
+  }
+
+  // Init TX descriptors
+  for (int i = 0; i < ETH_DESC_CNT; i++) {
+    s_txdesc[i][2] = (uint32_t) s_txbuf[i];  // Buf pointer
+    s_txdesc[i][3] = (uint32_t) s_txdesc[(i + 1) % ETH_DESC_CNT];  // Chain
+  }
+
+  ETH->DMABMR |= BIT(0);                        // Software reset
+  while ((ETH->DMABMR & BIT(0)) != 0) spin(1);  // Wait until done
+  // NOTE(cpq): we do not use extended descriptor bit 7, and do not use
+  // hardware checksum. Therefore, descriptor size is 4, not 8
+  // ETH->DMABMR = BIT(13) | BIT(16) | BIT(22) | BIT(23) | BIT(25);
+  ETH->MACIMR = BIT(3) | BIT(9);              // Mask timestamp & PMT IT
+  ETH->MACMIIAR = 4 << 2;                     // MDC clock 150-216 MHz, 38.8.1
+  ETH->MACFCR = BIT(7);                       // Disable zero quarta pause
+  ETH->MACFFR = BIT(31);                      // Receive all
+  eth_write_phy(PHY_ADDR, PHY_BCR, BIT(15));  // Reset PHY
+  eth_write_phy(PHY_ADDR, PHY_BCR, BIT(12));  // Set autonegotiation
+  ETH->DMARDLAR = (uint32_t) s_rxdesc;        // RX descriptors
+  ETH->DMATDLAR = (uint32_t) s_txdesc;        // RX descriptors
+  ETH->DMAIER = BIT(6) | BIT(16);             // RIE, NISE
+  ETH->MACCR = BIT(2) | BIT(3) | BIT(11) | BIT(14);    // RE, TE, Duplex, Fast
+  ETH->DMAOMR = BIT(1) | BIT(13) | BIT(21) | BIT(25);  // SR, ST, TSF, RSF
+}
+
+void mip_driver_stm32_setrx(void (*rx)(void *, size_t, void *), void *rxdata) {
+  s_rx = rx;
+  s_rxdata = rxdata;
+}
+
+static uint32_t s_txno;
+size_t mip_driver_stm32_tx(const void *buf, size_t len, void *userdata) {
+  if (len > sizeof(s_txbuf[s_txno])) {
+    printf("%s: frame too big, %ld\n", __func__, (long) len);
+    len = 0;  // Frame is too big
+  } else if ((s_txdesc[s_txno][0] & BIT(31))) {
+    printf("%s: no free descr\n", __func__);
+    len = 0;  // All descriptors are busy, fail
+  } else {
+    memcpy(s_txbuf[s_txno], buf, len);     // Copy data
+    s_txdesc[s_txno][1] = (uint32_t) len;  // Set data len
+    s_txdesc[s_txno][0] = BIT(20) | BIT(28) | BIT(29) | BIT(30);  // Chain,FS,LS
+    s_txdesc[s_txno][0] |= BIT(31);  // Set OWN bit - let DMA take over
+    if (++s_txno >= ETH_DESC_CNT) s_txno = 0;
+  }
+  uint32_t sr = ETH->DMASR;
+  if (sr & BIT(2)) ETH->DMASR = BIT(2), ETH->DMATPDR = 0;  // Resume
+  if (sr & BIT(5)) ETH->DMASR = BIT(5), ETH->DMATPDR = 0;  // if busy
+  if (len == 0) printf("E: D0 %lx, DMASR %lx\n", s_txdesc[0][0], sr);
+  return len;
+  (void) userdata;
+}
+
+bool mip_driver_stm32_status(void *userdata) {
+  uint32_t bsr = eth_read_phy(PHY_ADDR, PHY_BSR);
+  return bsr & BIT(2) ? 1 : 0;
+  (void) userdata;
+}
+
+void ETH_IRQHandler(void) {
+  volatile uint32_t sr = ETH->DMASR;
+  if (sr & BIT(6)) {  // Frame received, loop
+    for (uint32_t i = 0; i < ETH_DESC_CNT; i++) {
+      if (s_rxdesc[i][0] & BIT(31)) continue;
+      uint32_t len = ((s_rxdesc[i][0] >> 16) & (BIT(14) - 1));
+      //    printf("%lx %lu %lx %lx\n", i, len, s_rxdesc[i][0], sr);
+      if (s_rx != NULL) s_rx(s_rxbuf[i], len > 4 ? len - 4 : len, s_rxdata);
+      s_rxdesc[i][0] = BIT(31);
+    }
+  }
+  if (sr & BIT(7)) ETH->DMARPDR = 0;     // Resume RX
+  ETH->DMASR = sr & ~(BIT(2) | BIT(7));  // Clear status
+}

drivers/mip_driver_stm32.h

@@ -0,0 +1,12 @@
+// Copyright (c) 2022 Cesanta Software Limited
+// All rights reserved
+
+#pragma once
+
+#include <stdbool.h>
+#include <stddef.h>
+
+void mip_driver_stm32_init(void *userdata);
+bool mip_driver_stm32_status(void *);
+void mip_driver_stm32_setrx(void (*rx)(void *, size_t, void *), void *);
+size_t mip_driver_stm32_tx(const void *buf, size_t len, void *);

drivers/mip_driver_w5500.h

@@ -0,0 +1,99 @@
+// Copyright (c) 2022 Cesanta Software Limited
+// All rights reserved
+//
+// This software is dual-licensed: you can redistribute it and/or modify
+// it under the terms of the GNU Affero General Public License version 3 as
+// published by the Free Software Foundation. For the terms of this
+// license, see http://www.fsf.org/licensing/licenses/agpl-3.0.html
+//
+// You are free to use this software under the terms of the GNU General
+// Public License, but WITHOUT ANY WARRANTY; without even the implied
+// 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, please contact us at https://cesanta.com/contact.html
+
+#pragma once
+
+struct w5500 {
+  uint8_t mac[6];                   // MAC address
+  void *spi;                        // Opaque SPI bus descriptor
+  uint8_t (*txn)(void *, uint8_t);  // SPI transaction
+  void (*begin)(void *);            // SPI begin
+  void (*end)(void *);              // SPI end
+};
+
+enum { W5500_CR = 0, W5500_S0 = 1, W5500_TX0 = 2, W5500_RX0 = 3 };
+
+static inline void w5500_txn(struct w5500 *w, uint8_t block, uint16_t addr,
+                             bool wr, void *buf, size_t len) {
+  uint8_t *p = buf, cmd[] = {(uint8_t) (addr >> 8), (uint8_t) (addr & 255),
+                             (uint8_t) ((block << 3) | (wr ? 4 : 0))};
+  w->begin(w->spi);
+  for (size_t i = 0; i < sizeof(cmd); i++) w->txn(w->spi, cmd[i]);
+  for (size_t i = 0; i < len; i++) {
+    uint8_t r = w->txn(w->spi, p[i]);
+    if (!wr) p[i] = r;
+  }
+  w->end(w->spi);
+}
+
+// clang-format off
+static inline void w5500_wn(struct w5500 *w, uint8_t block, uint16_t addr, void *buf, size_t len) { w5500_txn(w, block, addr, true, buf, len); }
+static inline void w5500_w1(struct w5500 *w, uint8_t block, uint16_t addr, uint8_t val) { w5500_wn(w, block, addr, &val, 1); }
+static inline void w5500_w2(struct w5500 *w, uint8_t block, uint16_t addr, uint16_t val) { uint8_t buf[2] = {(uint8_t) (val >> 8), (uint8_t) (val & 255)}; w5500_wn(w, block, addr, buf, sizeof(buf)); }
+static inline void w5500_rn(struct w5500 *w, uint8_t block, uint16_t addr, void *buf, size_t len) { w5500_txn(w, block, addr, false, buf, len); }
+static inline uint8_t w5500_r1(struct w5500 *w, uint8_t block, uint16_t addr) { uint8_t r = 0; w5500_rn(w, block, addr, &r, 1); return r; }
+static inline uint16_t w5500_r2(struct w5500 *w, uint8_t block, uint16_t addr) { uint8_t buf[2] = {0, 0}; w5500_rn(w, block, addr, buf, sizeof(buf)); return (uint16_t) ((buf[0] << 8) | buf[1]); }
+// clang-format on
+
+static inline uint8_t w5500_status(struct w5500 *w) {
+  return w5500_r1(w, W5500_CR, 0x2e);
+}
+
+static inline uint16_t w5500_rx(struct w5500 *w, uint8_t *buf, uint16_t len) {
+  uint16_t r = 0, n = 0, n2;                              // Read recv len
+  while ((n2 = w5500_r2(w, W5500_S0, 0x26)) > n) n = n2;  // Until it is stable
+  // printf("RSR: %d\n", (int) n);
+  if (n > 0) {
+    uint16_t ptr = w5500_r2(w, W5500_S0, 0x28);  // Get read pointer
+    n = w5500_r2(w, W5500_RX0, ptr);             // Read frame length
+    if (n <= len + 2) r = n - 2, w5500_rn(w, W5500_RX0, ptr + 2, buf, r);
+    w5500_w2(w, W5500_S0, 0x28, ptr + n);  // Advance read pointer
+    w5500_w1(w, W5500_S0, 1, 0x40);        // Sock0 CR -> RECV
+    // printf("  RX_RD: tot=%u n=%u r=%u\n", n2, n, r);
+  }
+  return r;
+}
+
+static inline uint16_t w5500_tx(struct w5500 *w, void *buf, uint16_t len) {
+  uint16_t n = 0;
+  while (n < len) n = w5500_r2(w, W5500_S0, 0x20);  // Wait for space
+  uint16_t ptr = w5500_r2(w, W5500_S0, 0x24);       // Get write pointer
+  w5500_wn(w, W5500_TX0, ptr, buf, len);            // Write data
+  w5500_w2(w, W5500_S0, 0x24, ptr + len);           // Advance write pointer
+  w5500_w1(w, W5500_S0, 1, 0x20);                   // Sock0 CR -> SEND
+  for (int i = 0; i < 40; i++) {
+    uint8_t ir = w5500_r1(w, W5500_S0, 2);  // Read S0 IR
+    if (ir == 0) continue;
+    // printf("IR %d, len=%d, free=%d, ptr %d\n", ir, (int) len, (int) n, ptr);
+    w5500_w1(w, W5500_S0, 2, ir);  // Write S0 IR: clear it!
+    if (ir & 8) len = 0;           // Timeout. Report error
+    if (ir & (16 | 8)) break;      // Stop on SEND_OK or timeout
+  }
+  return len;
+}
+
+static inline bool w5500_init(struct w5500 *w) {
+  w->end(w->spi);
+  w5500_w1(w, W5500_CR, 0, 0x80);     // Reset chip: CR -> 0x80
+  w5500_w1(w, W5500_CR, 0x2e, 0);     // CR PHYCFGR -> reset
+  w5500_w1(w, W5500_CR, 0x2e, 0xf8);  // CR PHYCFGR -> set
+  // w5500_wn(w, W5500_CR, 9, w->mac, 6);      // Set source MAC
+  w5500_w1(w, W5500_S0, 0x1e, 16);          // Sock0 RX buf size
+  w5500_w1(w, W5500_S0, 0x1f, 16);          // Sock0 TX buf size
+  w5500_w1(w, W5500_S0, 0, 4);              // Sock0 MR -> MACRAW
+  w5500_w1(w, W5500_S0, 1, 1);              // Sock0 CR -> OPEN
+  return w5500_r1(w, W5500_S0, 3) == 0x42;  // Sock0 SR == MACRAW
+}

examples/captive-dns-server/README.md

@@ -0,0 +1 @@
+See detailed tutorial at https://mongoose.ws/tutorials/captive-dns-portal/

examples/captive-dns-server/main.c

@@ -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;

examples/complete/Makefile

@@ -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

examples/complete/README.md

@@ -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)

examples/complete/main.c

@@ -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 = 0;
-  char *data = mg_file_read(path, &size);  // 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;
-}

examples/complete/web_root/app.js

@@ -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);

examples/complete/web_root/axios.min.js

@@ -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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examples/complete/web_root/bootstrap.min.css

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-/*!
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- * Copyright 2011-2019 The Bootstrap Authors
- * Copyright 2011-2019 Twitter, Inc.
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examples/complete/web_root/history.min.js

@@ -1 +0,0 @@
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examples/complete/web_root/htm.min.js

@@ -1 +0,0 @@
-!function(){function n(n){var t=e.get(this);return t||(t=new Map,e.set(this,t)),1<(t=a(this,t.get(n)||(t.set(n,t=function(n){function t(n){1===u&&(n||(r=r.replace(/^\s*\n\s*|\s*\n\s*$/g,"")))?p.push(0,n,r):3===u&&(n||r)?(p.push(3,n,r),u=2):2===u&&"..."===r&&n?p.push(4,n,0):2===u&&r&&!n?p.push(5,0,!0,r):5<=u&&((r||!n&&5===u)&&(p.push(u,0,r,s),u=6),n&&(p.push(u,n,0,s),u=6)),r=""}for(var e,s,u=1,r="",h="",p=[0],a=0;a<n.length;a++){a&&(1===u&&t(),t(a));for(var o=0;o<n[a].length;o++)e=n[a][o],1===u?"<"===e?(t(),p=[p],u=3):r+=e:4===u?r="--"===r&&">"===e?(u=1,""):e+r[0]:h?e===h?h="":r+=e:'"'===e||"'"===e?h=e:">"===e?(t(),u=1):u&&("="===e?(u=5,s=r,r=""):"/"===e&&(u<5||">"===n[a][o+1])?(t(),3===u&&(p=p[0]),(p=(u=p)[0]).push(2,0,u),u=0):" "===e||"\t"===e||"\n"===e||"\r"===e?(t(),u=2):r+=e),3===u&&"!--"===r&&(u=4,p=p[0])}return t(),p}(n)),t),arguments,[])).length?t:t[0]}var a=function(n,t,e,s){var u;t[0]=0;for(var r=1;r<t.length;r++){var h=t[r++],p=t[r]?(t[0]|=h?1:2,e[t[r++]]):t[++r];3===h?s[0]=p:4===h?s[1]=Object.assign(s[1]||{},p):5===h?(s[1]=s[1]||{})[t[++r]]=p:6===h?s[1][t[++r]]+=p+"":h?(u=n.apply(p,a(n,p,e,["",null])),s.push(u),p[0]?t[0]|=2:(t[r-2]=0,t[r]=u)):s.push(p)}return s},e=new Map;"undefined"!=typeof module?module.exports=n:self.htm=n}();

examples/complete/web_root/index.html

@@ -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>

examples/complete/web_root/linkstate.min.js

@@ -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);
-         });
-}

examples/complete/web_root/preact-router.min.js

@@ -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});

examples/complete/web_root/preact.min.js

@@ -1,2 +0,0 @@
-!function(){var n,l,u,t,i,o,r,e,f={},c=[],a=/acit|ex(?:s|g|n|p|$)|rph|grid|ows|mnc|ntw|ine[ch]|zoo|^ord|itera/i;function s(n,l){for(var u in l)n[u]=l[u];return n}function v(n){var l=n.parentNode;l&&l.removeChild(n)}function h(n,l,u){var t,i=arguments,o={};for(t in l)"key"!==t&&"ref"!==t&&(o[t]=l[t]);if(arguments.length>3)for(u=[u],t=3;t<arguments.length;t++)u.push(i[t]);if(null!=u&&(o.children=u),"function"==typeof n&&null!=n.defaultProps)for(t in n.defaultProps)void 0===o[t]&&(o[t]=n.defaultProps[t]);return y(n,o,l&&l.key,l&&l.ref,null)}function y(l,u,t,i,o){var r={type:l,props:u,key:t,ref:i,__k:null,__:null,__b:0,__e:null,__d:void 0,__c:null,constructor:void 0,__v:o};return null==o&&(r.__v=r),n.vnode&&n.vnode(r),r}function p(n){return n.children}function d(n,l){this.props=n,this.context=l}function _(n,l){if(null==l)return n.__?_(n.__,n.__.__k.indexOf(n)+1):null;for(var u;l<n.__k.length;l++)if(null!=(u=n.__k[l])&&null!=u.__e)return u.__e;return"function"==typeof n.type?_(n):null}function m(n){var l,u;if(null!=(n=n.__)&&null!=n.__c){for(n.__e=n.__c.base=null,l=0;l<n.__k.length;l++)if(null!=(u=n.__k[l])&&null!=u.__e){n.__e=n.__c.base=u.__e;break}return m(n)}}function k(l){(!l.__d&&(l.__d=!0)&&u.push(l)&&!w.__r++||i!==n.debounceRendering)&&((i=n.debounceRendering)||t)(w)}function w(){for(var n;w.__r=u.length;)n=u.sort(function(n,l){return n.__v.__b-l.__v.__b}),u=[],n.some(function(n){var l,u,t,i,o,r,e;n.__d&&(r=(o=(l=n).__v).__e,(e=l.__P)&&(u=[],(t=s({},o)).__v=t,i=N(e,o,t,l.__n,void 0!==e.ownerSVGElement,null,u,null==r?_(o):r),z(u,o),i!=r&&m(o)))})}function g(n,l,u,t,i,o,r,e,a,s){var h,d,m,k,w,g,x,C=t&&t.__k||c,A=C.length;for(a==f&&(a=null!=r?r[0]:A?_(t,0):null),u.__k=[],h=0;h<l.length;h++)if(null!=(k=u.__k[h]=null==(k=l[h])||"boolean"==typeof k?null:"string"==typeof k||"number"==typeof 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d(w,x),v.constructor=A,v.render=F),b&&b.sub(v),v.props=w,v.state||(v.state={}),v.context=x,v.__n=i,h=v.__d=!0,v.__h=[]),null==v.__s&&(v.__s=v.state),null!=A.getDerivedStateFromProps&&(v.__s==v.state&&(v.__s=s({},v.__s)),s(v.__s,A.getDerivedStateFromProps(w,v.__s))),y=v.props,_=v.state,h)null==A.getDerivedStateFromProps&&null!=v.componentWillMount&&v.componenLine truncated
-//# sourceMappingURL=preact.min.js.map

examples/complete/web_root/style.css

@@ -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%; }

examples/dashboard/Makefile

@@ -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

examples/dashboard/main.c

@@ -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;
-}

examples/dashboard/web_root/app.js

@@ -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);

examples/dashboard/web_root/axios.min.js

@@ -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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examples/dashboard/web_root/htm.min.js

@@ -1 +0,0 @@
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examples/dashboard/web_root/linkstate.min.js

@@ -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);
-         });
-}

examples/dashboard/web_root/preact.min.js

@@ -1,2 +0,0 @@
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examples/dashboard/web_root/style.css

@@ -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; }

examples/device-dashboard/Makefile

@@ -0,0 +1,32 @@
+PROG ?= example
+SOURCES ?= ../../mongoose.c main.c web.c packed_fs.c
+CFLAGS ?= -I../.. -DMG_ENABLE_PACKED_FS=1 $(EXTRA)
+FILES_TO_EMBED ?= $(wildcard web_root/*)
+ROOT ?= $(realpath $(CURDIR)/../../..)
+DOCKER ?= docker run --rm -e Tmp=. -e WINEDEBUG=-all -v $(ROOT):$(ROOT) -w $(CURDIR)
+VC98 ?= $(DOCKER) mdashnet/vc98 wine
+MINGW ?= $(DOCKER) mdashnet/mingw
+
+all: $(PROG)
+	$(RUN) ./$(PROG)
+
+$(PROG): $(SOURCES) $(FILES_TO_EMBED)
+	$(CC) ../../test/pack.c -o pack
+	./pack $(FILES_TO_EMBED) > packed_fs.c
+	$(CC) -W -Wall -Wextra -O0 -g3 $(CFLAGS) -o $(PROG) $(SOURCES)
+
+
+mingw: $(SOURCES) $(FILES_TO_EMBED)
+	$(MINGW) i686-w64-mingw32-gcc $(CFLAGS) ../../test/pack.c -o pack.exe
+	$(MINGW) wine cmd /c 'pack.exe $(FILES_TO_EMBED) > packed_fs.c'
+	$(MINGW) i686-w64-mingw32-gcc $(CFLAGS) $(SOURCES) -lws2_32 -o $(PROG).exe
+	$(MINGW) wine $(PROG).exe
+
+vc98: $(SOURCES) $(FILES_TO_EMBED)
+	$(VC98) cl.exe /nologo $(CFLAGS) ../../test/pack.c /Fepack.exe
+	$(VC98) cmd /c 'pack.exe $(FILES_TO_EMBED) > packed_fs.c'
+	$(VC98) cl.exe /nologo /O2 $(CFLAGS) $(SOURCES) /Fe$(PROG).exe
+	$(VC98) $(PROG).exe
+
+clean:
+	rm -rf $(PROG) *.o *.dSYM *.gcov *.gcno *.gcda *.obj *.exe *.ilk *.pdb log.txt pack

examples/device-dashboard/README.md

@@ -0,0 +1,25 @@
+# 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
+- View and change server settings
+- All changes are propagates to all connected clients
+- Live interactive chat that demonstrates bi-directional data exchange
+
+# Screenshots
+
+This is a login screen that prompts for user/password
+
+![](screenshots/login.png)
+
+# Main dashboard
+
+A main dashboard page shows device settings form, and live chat
+
+![](screenshots/dashboard.png)

examples/device-dashboard/main.c

@@ -0,0 +1,15 @@
+// Copyright (c) 2020-2022 Cesanta Software Limited
+// All rights reserved
+
+#include "mongoose.h"
+
+void device_dashboard_fn(struct mg_connection *, int, void *, void *);
+
+int main(void) {
+  struct mg_mgr mgr;
+  mg_mgr_init(&mgr);
+  mg_http_listen(&mgr, "http://0.0.0.0:8000", device_dashboard_fn, &mgr);
+  for (;;) mg_mgr_poll(&mgr, 1000);
+  mg_mgr_free(&mgr);
+  return 0;
+}

examples/device-dashboard/web.c

@@ -0,0 +1,130 @@
+// Copyright (c) 2020-2022 Cesanta Software Limited
+// All rights reserved
+
+#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};
+
+// 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];
+  if (mg_http_get_var(&hm->body, "value1", buf, sizeof(buf)) > 0) {
+    cfg->value1 = atoi(buf);
+    changed = true;
+  }
+  if (mg_http_get_var(&hm->body, "value2", buf, sizeof(buf)) > 0) {
+    free(cfg->value2);
+    cfg->value2 = malloc(strlen(buf) + 1);
+    strcpy(cfg->value2, 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", "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 *name,
+                              const char *data) {
+  struct mg_connection *c;
+  for (c = mgr->conns; c != NULL; c = c->next) {
+    if (c->label[0] == 'W')
+      mg_http_printf_chunk(c, "{\"name\": \"%s\", \"data\": \"%s\"}", name,
+                           data == NULL ? "" : data);
+  }
+}
+
+// HTTP request handler function
+void device_dashboard_fn(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);
+    // 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 (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")) {
+      mg_printf(c, "HTTP/1.1 200 OK\r\nTransfer-Encoding: chunked\r\n\r\n");
+      mg_http_printf_chunk(c, "{\"%s\":%d,\"%s\":\"%s\"}", "value1",
+                           s_config.value1, "value2", s_config.value2);
+      mg_http_printf_chunk(c, "");
+    } else if (mg_http_match_uri(hm, "/api/config/set")) {
+      // Admins only
+      if (strcmp(u->name, "admin") == 0) {
+        if (update_config(hm, &s_config))
+          send_notification(fn_data, "config", NULL);
+        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/message/send")) {
+      char buf[256];
+      if (mg_http_get_var(&hm->body, "message", buf, sizeof(buf)) > 0) {
+        send_notification(fn_data, "message", buf);
+      }
+      mg_printf(c, "HTTP/1.1 200 OK\r\nContent-Length: 0\r\n\r\n");
+    } else if (mg_http_match_uri(hm, "/api/watch")) {
+      c->label[0] = 'W';  // Mark ourselves as a event 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 = {0};
+#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);
+    }
+  }
+}

examples/device-dashboard/web_root/index.html

@@ -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>

examples/device-dashboard/web_root/main.js

@@ -0,0 +1,250 @@
+'use strict';
+import {Component, h, html, render, useEffect, useState} from './preact.min.js';
+
+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 Footer = props => html`
+<div style="color: silver; margin-top: 2em; padding-top: 0.5em; border-top: 1px solid #ccc; ">
+  Copyright (c) Your Company
+</div>
+`;
+
+
+const Hero = props => html`
+<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>
+
+  This device dashboard is developed with modern and compact Preact framework,
+  in order to fit on a 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. Dynamic content is
+  served via the REST API. 
+
+  This dashboard shows values kept in server memory. Many clients can open
+  this page.  The JS code that watches state changes, reconnects on network
+  failures.  That means if server restarts, dashboard on all connected clients
+  refresh automatically.
+
+  NOTE: administrators can change settings values, whilst users cannot.
+
+  <p>
+  This UI uses the REST API implemented by the server, which you can examine
+  using  <code>curl</code> command-line utility:
+  </p>
+
+  <div><code>curl localhost:8000/api/config/get</code> - get current device configuration</div>
+  <div><code>curl localhost:8000/api/config/set -d 'value1=7&value2=hello'</code> - set device configuration</div>
+  <div><code>curl localhost:8000/api/message/send -d 'msg=hello'</code> - send chat message</div>
+  <div><code>curl localhost:8000/api/watch</code> - get notifications on config changes or chat messages</div>
+
+</div>`;
+
+const ShowSettings = function(props) {
+  return html`
+<div style="margin: 0 0.3em;">
+  <h3 style="background: #59d; color: #fff;padding: 0.4em;">Device configuration</h3>
+  <div style="margin: 0.5em 0;">
+    <span class="addon">value1:</span>
+    <input disabled type="text" class="smooth"
+      value=${(props.config || {}).value1 || ''} />
+  </div>
+  <div style="margin: 0.5em 0;">
+    <span class="addon">value2:</span>
+    <input disabled type="text" class="smooth" 
+      value=${(props.config || {}).value2 || ''} />
+  </div>
+  <div class="msg">
+    Server's corresponding runtime configuration structure:
+    <pre>
+struct config {
+  int value1;
+  char *value2;
+} s_config;
+    </pre>
+  </div>
+</div>`;
+};
+
+const ChangeSettings = function(props) {
+  const [value1, setValue1] = useState('');
+  const [value2, setValue2] = useState('');
+  useEffect(() => {
+    setValue1(props.config.value1);
+    setValue2(props.config.value2);
+  }, [props.config.value1, props.config.value2])
+  const update = (name, val) => fetch('/api/config/set', {
+                                  method: 'post',
+                                  body: `${name}=${encodeURIComponent(val)}`
+                                }).catch(err => err);
+  const updatevalue1 = ev => update('value1', value1);
+  const updatevalue2 = ev => update('value2', value2);
+  return html`
+<div style="margin: 0 0.3em;">
+  <h3 style="background: #c03434; color: #fff; padding: 0.4em;">
+    Change configuration</h3>
+  <div style="margin: 0.5em 0;">
+    <span class="addon">value1:</span>
+    <input type="text" value=${value1} onchange=${updatevalue1}
+          oninput=${ev => setValue1(ev.target.value)} />
+    <button class="btn" disabled=${!value1} onclick=${updatevalue1}
+      style="margin-left: 1em; background: #8aa;">Update</button>
+  </div>
+  <div style="margin: 0.5em 0;">
+    <span class="addon">value2:</span>
+    <input type="text" value=${value2} onchange=${updatevalue2}
+          oninput=${ev => setValue2(ev.target.value)} />
+    <button class="btn" disabled=${!value2} onclick=${updatevalue2}
+      style="margin-left: 1em; background: #8aa;">Update</button>
+  </div>
+  <div class="msg">
+    As soon as administrator updates configuration, 
+    server iterates over all connected clients and sends update
+    notifications to all of them - so they update automatically.
+  </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=${login}> Login </button>
+    </div>
+    <div style="color: #777; margin-top: 2em;">
+      Valid logins: admin:pass0, user1:pass1, user2:pass2
+    </div>
+  </div>
+</div>`;
+};
+
+const Message = text => html`<div style="margin: 0.5em 0;">${text}</div>`;
+
+const Chat = function(props) {
+  const [message, setMessage] = useState('');
+  const sendmessage = ev => fetch('/api/message/send', {
+                              method: 'post',
+                              body: `message=${encodeURIComponent(message)}`
+                            }).then(r => setMessage(''));
+
+  const messages = props.messages.map(
+      text => html`<div style="margin: 0.5em 0;">${text}</div>`);
+  return html`
+<div style="margin: 0 0.3em;">
+  <h3 style="background: #30c040; color: #fff; padding: 0.4em;">User chat</h3>
+  <div style="height: 10em; overflow: auto; padding: 0.5em; " class="border">
+    ${messages}
+  </div>
+  <div style="margin: 0.5em 0;">
+    <input placeholder="type message..." style="width: 100%" value=${message}
+      onchange=${sendmessage}
+      oninput=${ev => setMessage(ev.target.value)} />
+  </div>
+  <div class="msg">
+    Chat demonsrates
+    real-time bidirectional data exchange between many clients and a server.
+  </div>
+</div>`;
+};
+
+const App = function(props) {
+  const [messages, setMessages] = useState([]);
+  const [user, setUser] = useState('');
+  const [config, setConfig] = useState({});
+
+  const refresh = () => fetch('/api/config/get', {headers: {Authorization: ''}})
+                            .then(r => r.json())
+                            .then(r => setConfig(r));
+
+  const login = function(u) {
+    document.cookie = `access_token=${u.token};path=/;max-age=3600`;
+    setUser(u.user);
+    refresh();
+  };
+
+  const logout = ev => {
+    document.cookie = `access_token=;path=/;max-age=0`;
+    setUser('');
+  };
+
+  const watch = function() {
+    var f = function(reader) {
+      return reader.read().then(function(result) {
+        var data = String.fromCharCode.apply(null, result.value);
+        var notification = JSON.parse(data);
+        if (notification.name == 'config') refresh();
+        if (notification.name == 'message') {
+          setMessages(m => m.concat([notification.data]))
+        }
+        // console.log(notification);
+        if (!result.done) return f(reader);
+      });
+    };
+    fetch('/api/watch', {headers: {Authorization: ''}})
+        .then(r => r.body.getReader())
+        .then(f)
+        .catch(e => setTimeout(watch, 1000));
+  };
+
+  useEffect(() => {
+    fetch('/api/login', {headers: {Authorization: ''}})
+        .then(r => r.json())
+        .then(r => login(r))
+        .catch(err => setUser(''));
+    refresh();
+    watch();
+  }, []);
+
+  if (!user) return html`<${Login} login=${login} />`;
+  const admin = user == 'admin';
+  const colsize = admin ? 'c4' : 'c6';
+  const cs = admin ? html`<${ChangeSettings} config=${config} />` : '';
+  return html`
+<${Nav} user=${user} logout=${logout} />
+<div class="container">
+  <${Hero} />
+  <div class="row">
+    <div class="col ${colsize}"><${ShowSettings} config=${config} /></div>
+    <div class="col ${colsize}">${cs}</div>
+    <div class="col ${colsize}"><${Chat} messages=${messages} /></div>
+  </div>
+  <${Footer} />
+</div>`;
+};
+
+window.onload = () => render(h(App), document.body);

examples/device-dashboard/web_root/preact.min.js

@@ -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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examples/device-dashboard/web_root/style.css

@@ -0,0 +1,36 @@
+* { 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; }
+.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; }
+.msg { background: #def; border-left: 5px solid #59d; padding: 1em; margin: 1em 0; }
+.row { margin: 1% 0; overflow: auto; }
+.col { float: left; }
+.table, .c12 { width: 100%; }
+.c11 { width: 91.66%; }
+.c10 { width: 83.33%; }
+.c9 { width: 75%; }
+.c8 { width: 66.66%; }
+.c7 { width: 58.33%; }
+.c6 { width: 50%; }
+.c5 { width: 41.66%; }
+.c4 { width: 33.33%; }
+.c3 { width: 25%; }
+.c2 { width: 16.66%; }
+.c1 { width: 8.33%; }
+
+@media (min-width: 1310px) { .container { margin: auto; width: 1270px; } }
+@media (max-width: 870px) { .row .col { width: 100%; } }

examples/esp32/Makefile

@@ -3,7 +3,10 @@ ROOTDIR = $(realpath $(CURDIR)/../..)
 
 all: example
 
-example: main/main.c Makefile
+example:
+	true
+
+build: main/main.c Makefile
 	docker run --rm -v $(ROOTDIR):$(ROOTDIR) -w $(THISDIR) espressif/idf idf.py build
 
 COMPORT ?= /dev/cu.SLAB_USBtoUART
@@ -12,4 +15,4 @@ 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
+	rm -rf build

examples/esp32/README.md

@@ -1,28 +1 @@
-# 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
-```
+See detailed tutorial at https://mongoose.ws/tutorials/esp32/

examples/esp32/main/CMakeLists.txt

@@ -1,5 +1,4 @@
 idf_component_register(SRCS "main.c"
                             "wifi.c"
-                            "../../../mongoose.c"
-                       INCLUDE_DIRS "../../..")
-component_compile_options(-DMG_ENABLE_DIRECTORY_LISTING=1 -DMG_ENABLE_LINES)
+                            "mongoose.c")
+component_compile_options(-DMG_ENABLE_LINES)

examples/esp32/main/main.c

@@ -5,8 +5,8 @@
 #include "freertos/FreeRTOS.h"
 #include "mongoose.h"
 
-#define WIFI_SSID "WIFI_NETWORK"   // SET THIS!
-#define WIFI_PASS "WIFI_PASSWORD"  // SET THIS!
+#define WIFI_SSID "VMDF554B9"     // SET THIS!
+#define WIFI_PASS "Mp7wjmamPafa"  // SET THIS!
 #define FS_ROOT "/spiffs"
 
 // Event handler for an server (accepted) connection. Implemented endpoints:
@@ -24,19 +24,13 @@ static void cb(struct mg_connection *c, int ev, void *ev_data, void *fn_data) {
   }
 }
 
-// SPIFFS is flat, so tell Mongoose that the FS root is a directory
-// This cludge is not required for filesystems with directory support
-bool mg_is_dir(const char *path) {
-  return strcmp(path, FS_ROOT) == 0;
-}
-
 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);
-  LOG(res == ESP_OK ? LL_INFO : LL_ERROR, ("FS %s, %d", conf.base_path, res));
-  mg_file_printf(FS_ROOT "/hello.txt", "%s", "hello from ESP");
+  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
@@ -45,9 +39,9 @@ void app_main(void) {
 
   // Connected to WiFi, now start HTTP server
   struct mg_mgr mgr;
-  mg_log_set("3");
+  mg_log_set("4");
   mg_mgr_init(&mgr);
   mg_http_listen(&mgr, "http://0.0.0.0:80", cb, &mgr);  // Listening server
-  LOG(LL_INFO, ("Starting Mongoose web server v%s", MG_VERSION));
+  MG_INFO(("Starting Mongoose web server v%s", MG_VERSION));
   for (;;) mg_mgr_poll(&mgr, 1000);  // Infinite event loop
 }

examples/esp32/main/mongoose.c

@@ -0,0 +1 @@
+../../../mongoose.c

examples/esp32/main/mongoose.h

@@ -0,0 +1 @@
+../../../mongoose.h

examples/esp32/main/wifi.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(("got ip:" 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 */

examples/esp32/sdkconfig.defaults

@@ -1,3 +1,4 @@
 CONFIG_PARTITION_TABLE_CUSTOM=y
 CONFIG_PARTITION_TABLE_CUSTOM_FILENAME="partitions.csv"
 CONFIG_PARTITION_TABLE_FILENAME="partitions.csv"
+#CONFIG_ESP_MAIN_TASK_STACK_SIZE=8192

examples/esp8266/Makefile

@@ -3,8 +3,11 @@ ROOTDIR = $(realpath $(CURDIR)/../..)
 
 all: example
 
-example: src/main/main.c src/main/wifi.c Makefile
+example:
+	true
+
+build: src/main/main.c src/main/wifi.c Makefile
 	docker run --rm -v $(ROOTDIR):$(ROOTDIR) -w $(THISDIR) docker.io/mdashnet/8266 make -C src defconfig app
 
 clean:
-	rm -rf $(PROG) *.o *.dSYM *.gcov *.gcno *.gcda *.obj *.exe *.ilk *.pdb mongoose mongoose_* mongoose.* src/build src/sdkconfig
+	rm -rf build

examples/esp8266/src/main/main.c

@@ -26,7 +26,7 @@ static void cb2(struct mg_connection *c, int ev, void *ev_data, void *fn_data) {
     mg_printf(c, "GET / HTTP/1.0\r\nHost: %.*s\r\n\r\n", (int) s.len, s.ptr);
   } else if (ev == MG_EV_HTTP_MSG) {
     struct mg_http_message *hm = ev_data;  // Print HTTP response
-    LOG(LL_INFO, ("Fetched:\n%.*s", (int) hm->message.len, hm->message.ptr));
+    MG_INFO(("Fetched:\n%.*s", (int) hm->message.len, hm->message.ptr));
     c->is_closing = 1;
   }
 }
@@ -38,7 +38,7 @@ static void run_mongoose(void) {
   mg_mgr_init(&mgr);
   mg_http_listen(&mgr, SERVER_URL, cb, &mgr);    // Listening server
   mg_http_connect(&mgr, CLIENT_URL, cb2, &mgr);  // Example client
-  LOG(LL_INFO, ("Starting Mongoose web server v%s", MG_VERSION));
+  MG_INFO(("Starting Mongoose web server v%s", MG_VERSION));
   for (;;) mg_mgr_poll(&mgr, 1000);
   mg_mgr_free(&mgr);
 }

examples/esp8266/src/main/wifi.c

@@ -33,14 +33,14 @@ 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_DEBUG, ("retry to connect to the AP"));
+      MG_DEBUG(("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:%s", ip4addr_ntoa(&event->ip_info.ip)));
+    MG_INFO(("got ip:%s", ip4addr_ntoa(&event->ip_info.ip)));
     s_retry_num = 0;
     xEventGroupSetBits(s_wifi_event_group, WIFI_CONNECTED_BIT);
   }
@@ -71,11 +71,11 @@ void wifi_init(const char *ssid, const char *pass) {
                                          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"));
   }
 
   ESP_ERROR_CHECK(esp_event_handler_unregister(IP_EVENT, IP_EVENT_STA_GOT_IP,

examples/file-upload/README.md

@@ -0,0 +1 @@
+See detailed tutorial at https://mongoose.ws/tutorials/file-uploads/

examples/file-upload/main.c

@@ -1,5 +1,10 @@
 // Copyright (c) 2020 Cesanta Software Limited
 // All rights reserved
+//
+// Streaming upload example. Demonstrates how to use chunked encoding
+// to send large payload in smaller chunks. To test, use curl utility:
+//
+// curl http://localhost:8000/upload?name=a.txt --data-binary @large_file.txt
 
 #include "mongoose.h"
 
@@ -7,20 +12,29 @@
 //   /upload - Saves the next file chunk
 //   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, "/upload")) {
-      mg_http_upload(c, hm, "/tmp");
-    } else {
-      struct mg_http_serve_opts opts = {.root_dir = "web_root"};
-      mg_http_serve_dir(c, ev_data, &opts);
+  struct mg_http_message *hm = (struct mg_http_message *) ev_data;
+  if (ev == MG_EV_HTTP_CHUNK && mg_http_match_uri(hm, "/upload")) {
+    MG_INFO(("Got chunk len %lu", (unsigned long) hm->chunk.len));
+    MG_INFO(("Query string: [%.*s]", (int) hm->query.len, hm->query.ptr));
+    // MG_INFO(("Chunk data:\n%.*s", (int) hm->chunk.len, hm->chunk.ptr));
+    mg_http_delete_chunk(c, hm);
+    if (hm->chunk.len == 0) {
+      MG_INFO(("Last chunk received, sending response"));
+      mg_http_reply(c, 200, "", "ok (chunked)\n");
     }
+  } else if (ev == MG_EV_HTTP_MSG && mg_http_match_uri(hm, "/upload")) {
+    MG_INFO(("Got all %lu bytes!", (unsigned long) hm->body.len));
+    MG_INFO(("Query string: [%.*s]", (int) hm->query.len, hm->query.ptr));
+    // MG_INFO(("Body:\n%.*s", (int) hm->body.len, hm->body.ptr));
+    mg_http_reply(c, 200, "", "ok (%lu)\n", (unsigned long) hm->body.len);
+  } else if (ev == MG_EV_HTTP_MSG) {
+    struct mg_http_serve_opts opts = {.root_dir = "web_root"};
+    mg_http_serve_dir(c, hm, &opts);
   }
 }
 
 int main(void) {
   struct mg_mgr mgr;
-  struct mg_timer t1;
 
   mg_mgr_init(&mgr);
   mg_log_set("3");

examples/file-upload/web_root/app.js

@@ -1,41 +0,0 @@
-// Copyright (c) 2020 Cesanta Software Limited
-// All rights reserved
-
-// Helper function to display upload status
-var setStatus = function(text) {
-  document.getElementById('el3').innerText = text;
-};
-
-// When user clicks on a button, trigger file selection dialog
-var button = document.getElementById('el2');
-button.onclick = function(ev) {
-  input.click();
-};
-
-// Send a large blob of data chunk by chunk
-var sendFileData = function(name, data, chunkSize) {
-  var sendChunk = function(offset) {
-    var chunk = data.subarray(offset, offset + chunkSize) || '';
-    var opts = {method: 'POST', body: chunk};
-    var url = '/upload?offset=' + offset + '&name=' + encodeURIComponent(name);
-    setStatus(
-        'sending bytes ' + offset + '..' + (offset + chunk.length) + ' of ' +
-        data.length);
-    fetch(url, opts).then(function(res) {
-      if (chunk.length > 0) sendChunk(offset + chunk.length);
-    });
-  };
-  sendChunk(0);
-};
-
-// If user selected a file, read it into memory and trigger sendFileData()
-var input = document.getElementById('el1');
-input.onchange = function(ev) {
-  if (!ev.target.files[0]) return;
-  var f = ev.target.files[0], r = new FileReader();
-  r.readAsArrayBuffer(f);
-  r.onload = function() {
-    ev.target.value = '';
-    sendFileData(f.name, new Uint8Array(r.result), 4096);
-  };
-};

examples/file-upload/web_root/index.html

@@ -16,21 +16,49 @@
       <div id="info">
         Mongoose always buffers a full HTTP message before invoking
         MG_EV_HTTP_MSG event. Big POST request require of lot
-        of RAM to buffer everything. Therefore, in order to upload large
-        files on memory-constrained system, a large file should be send
-        in small chunks.
-        <br/><br/>
-        In this example, JavaScript code on this page sends uploaded
-        file in 2k chunks using an <code>/upload</code> endpoint.
-        Uploaded file is stored in <code>/tmp</code> directory by the helper
-				API function <code>mg_http_upload()</code>
+        of RAM to buffer everything.
+        <br><br>
+        In order to upload large files to a memory-constrained system, use
+        <code>MG_EV_HTTP_CHUNK</code> on a server side. It fires when
+        a partial HTTP message has been received (or a chunk-encoded chunk).
+        Use <code>mg_http_delete_chunk()</code> to release chunk memory.
+        When 0-sized chunk is received, that's the end of the message.
+        Use <code>MG_MAX_RECV_BUF_SIZE</code> build constant to limit
+        maximum chunk size on a server side.
+        <br><br>
+        In this example, JavaScript code uses "fetch()" browser API.
+        Uploaded file is not saved, but rather printed by server side.
       </div>
       <div id="wrapper">
         <input type="file" id="el1" style="display: none"/>
         <button id="el2">choose file...</button>
-        <div id="el3"></div>
+        <div id="el3" style="margin-top: 1em;"></div>
       </div>
     </div>
   </body>
-  <script src="app.js"></script>
+  <script>
+
+    // When user clicks on a button, trigger file selection dialog
+    document.getElementById('el2').onclick = function(ev) {
+      document.getElementById('el1').click();
+    };
+
+    // If user selected a file, read it into memory and trigger sendFileData()
+    document.getElementById('el1').onchange = function(ev) {
+      if (!ev.target.files[0]) return;
+      var f = ev.target.files[0], r = new FileReader();
+      r.readAsArrayBuffer(f);
+      r.onload = function() {
+        ev.target.value = '';
+        document.getElementById('el3').innerText = 'Uploading...';
+        fetch('/upload?name=' + encodeURIComponent(f.name), {
+          method: 'POST',
+          body: r.result,
+        }).then(function(res) {
+          document.getElementById('el3').innerText = 'Uploaded ' + r.result.byteLength + ' bytes';
+        });
+      };
+    };
+
+  </script>
 </html>

examples/form-upload/README.md

@@ -0,0 +1 @@
+See detailed tutorial at https://mongoose.ws/tutorials/file-uploads/

examples/form-upload/main.c

@@ -19,16 +19,15 @@
 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;
-    LOG(LL_INFO, ("New request to: [%.*s], body size: %lu", (int) hm->uri.len,
-                  hm->uri.ptr, (unsigned long) hm->body.len));
+    MG_INFO(("New request to: [%.*s], body size: %lu", (int) hm->uri.len,
+             hm->uri.ptr, (unsigned long) hm->body.len));
     if (mg_http_match_uri(hm, "/upload")) {
       struct mg_http_part part;
       size_t ofs = 0;
       while ((ofs = mg_http_next_multipart(hm->body, ofs, &part)) > 0) {
-        LOG(LL_INFO,
-            ("Chunk name: [%.*s] filename: [%.*s] length: %lu bytes",
-             (int) part.name.len, part.name.ptr, (int) part.filename.len,
-             part.filename.ptr, (unsigned long) part.body.len));
+        MG_INFO(("Chunk name: [%.*s] filename: [%.*s] length: %lu bytes",
+                 (int) part.name.len, part.name.ptr, (int) part.filename.len,
+                 part.filename.ptr, (unsigned long) part.body.len));
       }
       mg_http_reply(c, 200, "", "Thank you!");
     } else {
@@ -40,7 +39,6 @@ static void cb(struct mg_connection *c, int ev, void *ev_data, void *fn_data) {
 
 int main(void) {
   struct mg_mgr mgr;
-  struct mg_timer t1;
 
   mg_mgr_init(&mgr);
   mg_log_set("3");

examples/http-client/Makefile

@@ -1,6 +1,6 @@
 PROG ?= example
-CFLAGS ?= -DMG_ENABLE_LINES $(EXTRA)
 ROOT ?= $(realpath $(CURDIR)/../..)
+CFLAGS ?= -DMG_ENABLE_LINES $(EXTRA)
 LIN = docker run -it --rm -v $(ROOT):$(ROOT) -w $(CURDIR) mdashnet/cc2
 
 ifneq ($(MBEDTLS),)
@@ -14,7 +14,7 @@ CFLAGS += -L$(OPENSSL)/lib -lssl -lcrypto
 endif
 
 all: $(PROG)
-	$(DEBUGGER) ./$(PROG) $(ARGS)
+	$(RUN) ./$(PROG) $(ARGS)
 
 $(PROG): main.c
 	$(CC) ../../mongoose.c -I../.. -W -Wall $(CFLAGS) -o $(PROG) main.c
@@ -22,7 +22,21 @@ $(PROG): main.c
 linux: all
 linux: CFLAGS += -O2 -g -fsanitize=address,undefined,shift,null,return,bounds,alignment,object-size,bool,enum -static-libasan
 linux: CC = $(LIN) cc
-linux: DEBUGGER = $(LIN)
+linux: RUN = $(LIN)
+
+
+ROOT ?= $(realpath $(CURDIR)/../..)
+DOCKER = docker run -it --rm -e Tmp=. -e WINEDEBUG=-all -v $(ROOT):$(ROOT) -w $(CURDIR)
+WDEFS = -DMG_ENABLE_MBEDTLS -DMG_ENABLE_LINES -Imbedtls/include -Imbedtls/library $(EXTRA)
+WFLAGS = /nologo -O2 -I. -I../.. ws2_32.lib advapi32.lib /link /out:$(PROG).exe
+WSRCS = ../../mongoose.c main.c mbedtls/library/*.c
+$(PROG).exe: main.c mbedtls
+	$(DOCKER) mdashnet/vc2017 wine cl $(WSRCS) $(WDEFS) $(WFLAGS)
+vc2017: ARGS = https://cesanta.com
+vc2017: $(PROG).exe
+	$(DOCKER) mdashnet/vc2017 wine $(PROG).exe $(ARGS)
+mbedtls:
+	git clone --depth 1 -b v3.1.0 https://github.com/ARMmbed/mbedtls
 
 clean:
-	rm -rf $(PROG) *.o *.dSYM *.gcov *.gcno *.gcda *.obj *.exe *.ilk *.pdb
+	rm -rf $(PROG) _CL* *.o *.dSYM *.gcov *.gcno *.gcda *.obj *.exe *.ilk *.pdb mbedtls

examples/http-client/README.md

@@ -0,0 +1 @@
+See detailed tutorial at https://mongoose.ws/tutorials/http-client/

examples/http-client/ca.pem

@@ -1,507 +0,0 @@
-Subject: O=Digital Signature Trust Co., CN=DST Root CA X3
-Not Before: Sep 30 21:12:19 2000 GMT
-Not After : Sep 30 14:01:15 2021 GMT
------BEGIN CERTIFICATE-----
-MIIDSjCCAjKgAwIBAgIQRK+wgNajJ7qJMDmGLvhAazANBgkqhkiG9w0BAQUFADA/
-MSQwIgYDVQQKExtEaWdpdGFsIFNpZ25hdHVyZSBUcnVzdCBDby4xFzAVBgNVBAMT
-DkRTVCBSb290IENBIFgzMB4XDTAwMDkzMDIxMTIxOVoXDTIxMDkzMDE0MDExNVow
-PzEkMCIGA1UEChMbRGlnaXRhbCBTaWduYXR1cmUgVHJ1c3QgQ28uMRcwFQYDVQQD
-Ew5EU1QgUm9vdCBDQSBYMzCCASIwDQYJKoZIhvcNAQEBBQADggEPADCCAQoCggEB
-AN+v6ZdQCINXtMxiZfaQguzH0yxrMMpb7NnDfcdAwRgUi+DoM3ZJKuM/IUmTrE4O
-rz5Iy2Xu/NMhD2XSKtkyj4zl93ewEnu1lcCJo6m67XMuegwGMoOifooUMM0RoOEq
-OLl5CjH9UL2AZd+3UWODyOKIYepLYYHsUmu5ouJLGiifSKOeDNoJjj4XLh7dIN9b
-xiqKqy69cK3FCxolkHRyxXtqqzTWMIn/5WgTe1QLyNau7Fqckh49ZLOMxt+/yUFw
-7BZy1SbsOFU5Q9D8/RhcQPGX69Wam40dutolucbY38EVAjqr2m7xPi71XAicPNaD
-aeQQmxkqtilX4+U9m5/wAl0CAwEAAaNCMEAwDwYDVR0TAQH/BAUwAwEB/zAOBgNV
-HQ8BAf8EBAMCAQYwHQYDVR0OBBYEFMSnsaR7LHH62+FLkHX/xBVghYkQMA0GCSqG
-SIb3DQEBBQUAA4IBAQCjGiybFwBcqR7uKGY3Or+Dxz9LwwmglSBd49lZRNI+DT69
-ikugdB/OEIKcdBodfpga3csTS7MgROSR6cz8faXbauX+5v3gTt23ADq1cEmv8uXr
-AvHRAosZy5Q6XkjEGB5YGV8eAlrwDPGxrancWYaLbumR9YbK+rlmM6pZW87ipxZz
-R8srzJmwN0jP41ZL9c8PDHIyh8bwRLtTcm1D9SZImlJnt1ir/md2cXjbDaJWFBM5
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------END CERTIFICATE-----
-
-Subject: C=IE, O=Baltimore, OU=CyberTrust, CN=Baltimore CyberTrust Root
-Not Before: May 12 18:46:00 2000 GMT
-Not After : May 12 23:59:00 2025 GMT
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
-
-Subject: C=US, O=GeoTrust Inc., CN=GeoTrust Global CA
-Not Before: May 21 04:00:00 2002 GMT
-Not After : May 21 04:00:00 2022 GMT
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
-
-Subject: C=US, O=Symantec Corporation, OU=Symantec Trust Network, CN=Symantec Class 3 ECC 256 bit SSL CA - G2
-Not Before: May 12 00:00:00 2015 GMT
-Not After : May 11 23:59:59 2025 GMT
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
-
-Subject: C=US, O=VeriSign, Inc., OU=VeriSign Trust Network, OU=(c) 2006 VeriSign, Inc. - For authorized use only, CN=VeriSign Class 3 Public Primary Certification Authority - G5
-Not Before: Nov  8 00:00:00 2006 GMT
-Not After : Jul 16 23:59:59 2036 GMT
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
-
-Subject: C=US, O=The Go Daddy Group, Inc., OU=Go Daddy Class 2 Certification Authority
-Not Before: Jun 29 17:06:20 2004 GMT
-Not After : Jun 29 17:06:20 2034 GMT
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
-
-# Note: Amazon ATS endpoint uses this (2018/12/18)
-Subject: C=US, O=Starfield Technologies, Inc., OU=Starfield Class 2 Certification Authority
-Not Before: Jun 29 17:39:16 2004 GMT
-Not After : Jun 29 17:39:16 2034 GMT
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
-
-Not Before: Sep  1 00:00:00 2009 GMT
-Not After : Dec 31 23:59:59 2037 GMT
-Subject: C=US, ST=Arizona, L=Scottsdale, O=Starfield Technologies, Inc., CN=Starfield Root Certificate Authority - G2
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
-
-Subject: C=US, ST=Arizona, L=Scottsdale, O=Starfield Technologies, Inc., CN=Starfield Services Root Certificate Authority - G2
-Not Before: Sep  1 00:00:00 2009 GMT
-Not After : Dec 31 23:59:59 2037 GMT
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
-
-Subject: OU=GlobalSign Root CA - R2, O=GlobalSign, CN=GlobalSign
-Not Before: Dec 15 08:00:00 2006 GMT
-Not After : Dec 15 08:00:00 2021 GMT
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
-
-Subject: C=US, O=DigiCert Inc, OU=www.digicert.com, CN=DigiCert High Assurance EV Root CA
-Not Before: Nov 10 00:00:00 2006 GMT
-Not After : Nov 10 00:00:00 2031 GMT
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
-
-Subject: C=US, O=DigiCert Inc, OU=www.digicert.com, CN=DigiCert Global Root CA
-Not Before: Nov 10 00:00:00 2006 GMT
-Not After : Nov 10 00:00:00 2031 GMT
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
-
-# *.azure-devices.de use this root.
-Subject: C = DE, O = D-Trust GmbH, CN = D-TRUST Root Class 3 CA 2 2009
-Not Before: Nov  5 08:35:58 2009 GMT
-Not After : Nov  5 08:35:58 2029 GMT
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
-
-# https://www.amazontrust.com/repository/
-Subject: C = US, O = Amazon, CN = Amazon Root CA 1
-Not Before: May 26 00:00:00 2015 GMT
-Not After : Jan 17 00:00:00 2038 GMT
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
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-Subject: C = US, O = Amazon, CN = Amazon Root CA 2
-Not Before: May 26 00:00:00 2015 GMT
-Not After : May 26 00:00:00 2040 GMT
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
-
-Not Before: May 26 00:00:00 2015 GMT
-Not After : May 26 00:00:00 2040 GMT
-Subject: C = US, O = Amazon, CN = Amazon Root CA 3
------BEGIN CERTIFICATE-----
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-YyRIHN8wfdVoOw==
------END CERTIFICATE-----
-
-Not Before: May 26 00:00:00 2015 GMT
-Not After : May 26 00:00:00 2040 GMT
-Subject: C = US, O = Amazon, CN = Amazon Root CA 4
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
-
-Not Before: Nov 10 00:00:00 2006 GMT
-Not After : Nov 10 00:00:00 2031 GMT
-Subject: C = US, O = DigiCert Inc, OU = www.digicert.com, CN = DigiCert Global Root CA
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
-
-Not Before: Nov 13 00:00:00 2012 GMT
-Not After : Jan 19 03:14:07 2038 GMT
-Subject: OU = GlobalSign ECC Root CA - R4, O = GlobalSign, CN = GlobalSign
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
-
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-Not After : Nov  1 00:00:42 2042 GMT
-Subject: C = US, O = Google Trust Services LLC, CN = GTS LTSR
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----

examples/http-client/ca.pem

@@ -0,0 +1 @@
+../../test/data/ca.pem

examples/http-client/main.c

@@ -12,11 +12,21 @@
 #include "mongoose.h"
 
 // The very first web page in history. You can replace it from command line
-static const char *s_url = "http://info.cern.ch//foo";
+static const char *s_url = "http://info.cern.ch/";
+static const char *s_post_data = NULL;      // POST data
+static const uint64_t s_timeout_ms = 1500;  // Connect timeout in milliseconds
 
 // Print HTTP response and signal that we're done
 static void fn(struct mg_connection *c, int ev, void *ev_data, void *fn_data) {
-  if (ev == MG_EV_CONNECT) {
+  if (ev == MG_EV_OPEN) {
+    // Connection created. Store connect expiration time in c->label
+    *(uint64_t *) c->label = mg_millis() + s_timeout_ms;
+  } else if (ev == MG_EV_POLL) {
+    if (mg_millis() > *(uint64_t *) c->label &&
+        (c->is_connecting || c->is_resolving)) {
+      mg_error(c, "Connect timeout");
+    }
+  } else if (ev == MG_EV_CONNECT) {
     // Connected to server. Extract host name from URL
     struct mg_str host = mg_url_host(s_url);
 
@@ -27,11 +37,16 @@ static void fn(struct mg_connection *c, int ev, void *ev_data, void *fn_data) {
     }
 
     // Send request
+    int content_length = s_post_data ? strlen(s_post_data) : 0;
     mg_printf(c,
-              "GET %s HTTP/1.0\r\n"
+              "%s %s HTTP/1.0\r\n"
               "Host: %.*s\r\n"
+              "Content-Type: octet-stream\r\n"
+              "Content-Length: %d\r\n"
               "\r\n",
-              mg_url_uri(s_url), (int) host.len, host.ptr);
+              s_post_data ? "POST" : "GET", mg_url_uri(s_url), (int) host.len,
+              host.ptr, content_length);
+    mg_send(c, s_post_data, content_length);
   } else if (ev == MG_EV_HTTP_MSG) {
     // Response is received. Print it
     struct mg_http_message *hm = (struct mg_http_message *) ev_data;
@@ -44,13 +59,13 @@ static void fn(struct mg_connection *c, int ev, void *ev_data, void *fn_data) {
 }
 
 int main(int argc, char *argv[]) {
-  struct mg_mgr mgr;                        // Event manager
-  bool done = false;                        // Event handler flips it to true
-  if (argc > 1) s_url = argv[1];            // Use URL from command line
-  mg_log_set("3");                          // Set to 0 to disable debug
-  mg_mgr_init(&mgr);                        // Initialise event manager
+  struct mg_mgr mgr;              // Event manager
+  bool done = false;              // Event handler flips it to true
+  if (argc > 1) s_url = argv[1];  // Use URL provided in the command line
+  mg_log_set("4");                // Set to 0 to disable debug
+  mg_mgr_init(&mgr);              // Initialise event manager
   mg_http_connect(&mgr, s_url, fn, &done);  // Create client connection
-  while (!done) mg_mgr_poll(&mgr, 1000);    // Infinite event loop
+  while (!done) mg_mgr_poll(&mgr, 50);      // Infinite event loop
   mg_mgr_free(&mgr);                        // Free resources
   return 0;
 }

examples/http-proxy-client/ca.pem

@@ -1,507 +0,0 @@
-Subject: O=Digital Signature Trust Co., CN=DST Root CA X3
-Not Before: Sep 30 21:12:19 2000 GMT
-Not After : Sep 30 14:01:15 2021 GMT
------BEGIN CERTIFICATE-----
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-Ob8VZRzI9neWagqNdwvYkQsEjgfbKbYK7p2CNTUQ
------END CERTIFICATE-----
-
-Subject: C=IE, O=Baltimore, OU=CyberTrust, CN=Baltimore CyberTrust Root
-Not Before: May 12 18:46:00 2000 GMT
-Not After : May 12 23:59:00 2025 GMT
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
-
-Subject: C=US, O=GeoTrust Inc., CN=GeoTrust Global CA
-Not Before: May 21 04:00:00 2002 GMT
-Not After : May 21 04:00:00 2022 GMT
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
-
-Subject: C=US, O=Symantec Corporation, OU=Symantec Trust Network, CN=Symantec Class 3 ECC 256 bit SSL CA - G2
-Not Before: May 12 00:00:00 2015 GMT
-Not After : May 11 23:59:59 2025 GMT
------BEGIN CERTIFICATE-----
-MIIEajCCA1KgAwIBAgIQP5KHvp0dpKN6nfYoLndaxDANBgkqhkiG9w0BAQsFADCB
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------END CERTIFICATE-----
-
-Subject: C=US, O=VeriSign, Inc., OU=VeriSign Trust Network, OU=(c) 2006 VeriSign, Inc. - For authorized use only, CN=VeriSign Class 3 Public Primary Certification Authority - G5
-Not Before: Nov  8 00:00:00 2006 GMT
-Not After : Jul 16 23:59:59 2036 GMT
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
-
-Subject: C=US, O=The Go Daddy Group, Inc., OU=Go Daddy Class 2 Certification Authority
-Not Before: Jun 29 17:06:20 2004 GMT
-Not After : Jun 29 17:06:20 2034 GMT
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
-
-# Note: Amazon ATS endpoint uses this (2018/12/18)
-Subject: C=US, O=Starfield Technologies, Inc., OU=Starfield Class 2 Certification Authority
-Not Before: Jun 29 17:39:16 2004 GMT
-Not After : Jun 29 17:39:16 2034 GMT
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
-
-Not Before: Sep  1 00:00:00 2009 GMT
-Not After : Dec 31 23:59:59 2037 GMT
-Subject: C=US, ST=Arizona, L=Scottsdale, O=Starfield Technologies, Inc., CN=Starfield Root Certificate Authority - G2
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
-
-Subject: C=US, ST=Arizona, L=Scottsdale, O=Starfield Technologies, Inc., CN=Starfield Services Root Certificate Authority - G2
-Not Before: Sep  1 00:00:00 2009 GMT
-Not After : Dec 31 23:59:59 2037 GMT
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
-
-Subject: OU=GlobalSign Root CA - R2, O=GlobalSign, CN=GlobalSign
-Not Before: Dec 15 08:00:00 2006 GMT
-Not After : Dec 15 08:00:00 2021 GMT
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
-
-Subject: C=US, O=DigiCert Inc, OU=www.digicert.com, CN=DigiCert High Assurance EV Root CA
-Not Before: Nov 10 00:00:00 2006 GMT
-Not After : Nov 10 00:00:00 2031 GMT
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
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-Subject: C=US, O=DigiCert Inc, OU=www.digicert.com, CN=DigiCert Global Root CA
-Not Before: Nov 10 00:00:00 2006 GMT
-Not After : Nov 10 00:00:00 2031 GMT
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
-
-# *.azure-devices.de use this root.
-Subject: C = DE, O = D-Trust GmbH, CN = D-TRUST Root Class 3 CA 2 2009
-Not Before: Nov  5 08:35:58 2009 GMT
-Not After : Nov  5 08:35:58 2029 GMT
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
-
-# https://www.amazontrust.com/repository/
-Subject: C = US, O = Amazon, CN = Amazon Root CA 1
-Not Before: May 26 00:00:00 2015 GMT
-Not After : Jan 17 00:00:00 2038 GMT
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
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-Subject: C = US, O = Amazon, CN = Amazon Root CA 2
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------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
-
-Not Before: May 26 00:00:00 2015 GMT
-Not After : May 26 00:00:00 2040 GMT
-Subject: C = US, O = Amazon, CN = Amazon Root CA 3
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
-
-Not Before: May 26 00:00:00 2015 GMT
-Not After : May 26 00:00:00 2040 GMT
-Subject: C = US, O = Amazon, CN = Amazon Root CA 4
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
-
-Not Before: Nov 10 00:00:00 2006 GMT
-Not After : Nov 10 00:00:00 2031 GMT
-Subject: C = US, O = DigiCert Inc, OU = www.digicert.com, CN = DigiCert Global Root CA
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
-
-Not Before: Nov 13 00:00:00 2012 GMT
-Not After : Jan 19 03:14:07 2038 GMT
-Subject: OU = GlobalSign ECC Root CA - R4, O = GlobalSign, CN = GlobalSign
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
-
-Not Before: Nov  1 00:00:42 2018 GMT
-Not After : Nov  1 00:00:42 2042 GMT
-Subject: C = US, O = Google Trust Services LLC, CN = GTS LTSR
------BEGIN CERTIFICATE-----
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-SAAwRQIhAPKuf/VtBHqGw3TUwUIq7TfaExp3bH7bjCBmVXJupT9FAiBr0SmCtsuk
-miGgpajjf/gFigGM34F9021bCWs1MbL0SA==
------END CERTIFICATE-----

examples/http-proxy-client/ca.pem

@@ -0,0 +1 @@
+../../test/data/ca.pem

examples/http-proxy-client/main.c

@@ -37,9 +37,9 @@ static void fn(struct mg_connection *c, int ev, void *ev_data, void *fn_data) {
       struct mg_str host = mg_url_host(url);
       // CONNECT response - tunnel is established
       connected = true;
-      LOG(LL_DEBUG,
+      MG_DEBUG(
           ("Connected to proxy, status: %.*s", (int) hm.uri.len, hm.uri.ptr));
-      mg_iobuf_delete(&c->recv, n);
+      mg_iobuf_del(&c->recv, 0, n);
       // Send request to the target server
       mg_printf(c, "GET / HTTP/1.0\r\nHost: %.*s\r\n\r\n", (int) host.len,
                 host.ptr);

examples/http-restful-server/Makefile

@@ -1,5 +1,6 @@
 PROG ?= example
 
+CFLAGS ?= -W -Wall -DMG_ENABLE_LINES=1
 ifneq ($(MBEDTLS_DIR),)
 CFLAGS += -DMG_ENABLE_MBEDTLS=1 -I$(MBEDTLS_DIR)/include -I/usr/include
 CFLAGS += -L$(MBEDTLS_DIR)/lib -lmbedtls -lmbedcrypto -lmbedx509
@@ -12,7 +13,7 @@ all: $(PROG)
 	$(DEBUGGER) ./$(PROG) $(ARGS)
 
 $(PROG): main.c
-	$(CC) ../../mongoose.c -I../.. -W -Wall -DMG_ENABLE_LINES=1 -DMG_ENABLE_DIRECTORY_LISTING=1 $(CFLAGS) -o $(PROG) main.c
+	$(CC) ../../mongoose.c -I../.. $(CFLAGS) $(EFLAGS) -o $(PROG) main.c
 
 clean:
 	rm -rf $(PROG) *.o *.dSYM *.gcov *.gcno *.gcda *.obj *.exe *.ilk *.pdb

examples/http-restful-server/ca.pem

@@ -1,43 +0,0 @@
-Certificate:
-    Data:
-        Version: 3 (0x2)
-        Serial Number:
-            11:2a:0e:3c:6a:8c:85:ff:6e:6a:bc:db:95:51:70:ce:b4:30:78:c7
-        Signature Algorithm: ecdsa-with-SHA256
-        Issuer: C = IE, L = Dublin, O = Cesanta, CN = Test Root
-        Validity
-            Not Before: May  9 21:51:44 2020 GMT
-            Not After : May  9 21:51:44 2050 GMT
-        Subject: C = IE, L = Dublin, O = Cesanta, CN = Test Root
-        Subject Public Key Info:
-            Public Key Algorithm: id-ecPublicKey
-                Public-Key: (256 bit)
-                pub:
-                    04:2c:ab:d1:02:66:24:96:d7:12:3e:09:50:4f:f1:
-                    50:ee:51:e8:55:03:5e:ba:b1:1d:98:b2:72:79:27:
-                    a8:1b:31:0d:5d:50:21:ff:42:f2:da:74:17:5e:53:
-                    b2:65:41:c1:fc:84:de:4a:11:b9:8c:f4:19:d9:c4:
-                    ca:2b:ea:eb:2c
-                ASN1 OID: prime256v1
-                NIST CURVE: P-256
-        X509v3 extensions:
-            X509v3 Basic Constraints: 
-                CA:TRUE
-            X509v3 Key Usage: 
-                Digital Signature, Key Encipherment, Key Agreement, Certificate Sign, CRL Sign
-    Signature Algorithm: ecdsa-with-SHA256
-         30:46:02:21:00:9c:71:6c:00:8c:06:41:0c:91:2f:cd:41:d3:
-         87:47:e9:df:3a:22:ad:25:7c:bf:0e:2b:39:dd:7a:0c:4e:68:
-         1d:02:21:00:8f:c1:22:30:10:61:5d:51:10:ea:08:2d:02:63:
-         67:67:32:b5:06:63:96:57:bb:78:47:0a:88:d9:19:2e:f3:be
------BEGIN CERTIFICATE-----
-MIIBqjCCAU+gAwIBAgIUESoOPGqMhf9uarzblVFwzrQweMcwCgYIKoZIzj0EAwIw
-RDELMAkGA1UEBhMCSUUxDzANBgNVBAcMBkR1YmxpbjEQMA4GA1UECgwHQ2VzYW50
-YTESMBAGA1UEAwwJVGVzdCBSb290MCAXDTIwMDUwOTIxNTE0NFoYDzIwNTAwNTA5
-MjE1MTQ0WjBEMQswCQYDVQQGEwJJRTEPMA0GA1UEBwwGRHVibGluMRAwDgYDVQQK
-DAdDZXNhbnRhMRIwEAYDVQQDDAlUZXN0IFJvb3QwWTATBgcqhkjOPQIBBggqhkjO
-PQMBBwNCAAQsq9ECZiSW1xI+CVBP8VDuUehVA166sR2YsnJ5J6gbMQ1dUCH/QvLa
-dBdeU7JlQcH8hN5KEbmM9BnZxMor6ussox0wGzAMBgNVHRMEBTADAQH/MAsGA1Ud
-DwQEAwIBrjAKBggqhkjOPQQDAgNJADBGAiEAnHFsAIwGQQyRL81B04dH6d86Iq0l
-fL8OKzndegxOaB0CIQCPwSIwEGFdURDqCC0CY2dnMrUGY5ZXu3hHCojZGS7zvg==
------END CERTIFICATE-----

examples/http-restful-server/ca.pem

@@ -0,0 +1 @@
+../../test/data/ca.pem

examples/http-restful-server/main.c

@@ -4,7 +4,7 @@
 // HTTP server example. This server serves both static and dynamic content.
 // It opens two ports: plain HTTP on port 8000 and HTTP on port 8443.
 // It implements the following endpoints:
-//    /api/f1 - respond with JSON string {"result": 123}
+//    /api/stats - respond with free-formatted stats on current connections
 //    /api/f2/:id - wildcard example, respond with JSON string {"result": "URI"}
 //    any other URI serves static files from s_root_dir
 //
@@ -25,13 +25,26 @@ static void fn(struct mg_connection *c, int ev, void *ev_data, void *fn_data) {
     struct mg_tls_opts opts = {
         //.ca = "ca.pem",         // Uncomment to enable two-way SSL
         .cert = "server.pem",     // Certificate PEM file
-        .certkey = "server.pem",  // This pem conains both cert and key
+        .certkey = "server.pem",  // This pem contains both cert and key
     };
     mg_tls_init(c, &opts);
   } else if (ev == MG_EV_HTTP_MSG) {
     struct mg_http_message *hm = (struct mg_http_message *) ev_data;
-    if (mg_http_match_uri(hm, "/api/f1")) {
-      mg_http_reply(c, 200, "", "{\"result\": %d}\n", 123);  // Serve REST
+    if (mg_http_match_uri(hm, "/api/stats")) {
+      // Print some statistics about currently established connections
+      mg_printf(c, "HTTP/1.1 200 OK\r\nTransfer-Encoding: chunked\r\n\r\n");
+      mg_http_printf_chunk(c, "ID PROTO TYPE      LOCAL           REMOTE\n");
+      for (struct mg_connection *t = c->mgr->conns; t != NULL; t = t->next) {
+        char loc[40], rem[40];
+        mg_http_printf_chunk(c, "%-3lu %4s %s %-15s %s\n", t->id,
+                             t->is_udp ? "UDP" : "TCP",
+                             t->is_listening  ? "LISTENING"
+                             : t->is_accepted ? "ACCEPTED "
+                                              : "CONNECTED",
+                             mg_straddr(&t->loc, loc, sizeof(loc)),
+                             mg_straddr(&t->rem, rem, sizeof(rem)));
+      }
+      mg_http_printf_chunk(c, "");  // Don't forget the last empty chunk
     } else if (mg_http_match_uri(hm, "/api/f2/*")) {
       mg_http_reply(c, 200, "", "{\"result\": \"%.*s\"}\n", (int) hm->uri.len,
                     hm->uri.ptr);

examples/http-reverse-proxy/Makefile

@@ -1,5 +1,5 @@
 PROG ?= example
-CFLAGS ?= -DMG_IO_SIZE=8192
+CFLAGS ?= -DMG_IO_SIZE=128
 MBEDTLS_DIR ?=
 
 ifeq "$(MBEDTLS_DIR)" ""

examples/http-reverse-proxy/ca.pem

@@ -1,507 +0,0 @@
-Subject: O=Digital Signature Trust Co., CN=DST Root CA X3
-Not Before: Sep 30 21:12:19 2000 GMT
-Not After : Sep 30 14:01:15 2021 GMT
------BEGIN CERTIFICATE-----
-MIIDSjCCAjKgAwIBAgIQRK+wgNajJ7qJMDmGLvhAazANBgkqhkiG9w0BAQUFADA/
-MSQwIgYDVQQKExtEaWdpdGFsIFNpZ25hdHVyZSBUcnVzdCBDby4xFzAVBgNVBAMT
-DkRTVCBSb290IENBIFgzMB4XDTAwMDkzMDIxMTIxOVoXDTIxMDkzMDE0MDExNVow
-PzEkMCIGA1UEChMbRGlnaXRhbCBTaWduYXR1cmUgVHJ1c3QgQ28uMRcwFQYDVQQD
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-Ob8VZRzI9neWagqNdwvYkQsEjgfbKbYK7p2CNTUQ
------END CERTIFICATE-----
-
-Subject: C=IE, O=Baltimore, OU=CyberTrust, CN=Baltimore CyberTrust Root
-Not Before: May 12 18:46:00 2000 GMT
-Not After : May 12 23:59:00 2025 GMT
------BEGIN CERTIFICATE-----
-MIIDdzCCAl+gAwIBAgIEAgAAuTANBgkqhkiG9w0BAQUFADBaMQswCQYDVQQGEwJJ
-RTESMBAGA1UEChMJQmFsdGltb3JlMRMwEQYDVQQLEwpDeWJlclRydXN0MSIwIAYD
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------END CERTIFICATE-----
-
-Subject: C=US, O=GeoTrust Inc., CN=GeoTrust Global CA
-Not Before: May 21 04:00:00 2002 GMT
-Not After : May 21 04:00:00 2022 GMT
------BEGIN CERTIFICATE-----
-MIIDVDCCAjygAwIBAgIDAjRWMA0GCSqGSIb3DQEBBQUAMEIxCzAJBgNVBAYTAlVT
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------END CERTIFICATE-----
-
-Subject: C=US, O=Symantec Corporation, OU=Symantec Trust Network, CN=Symantec Class 3 ECC 256 bit SSL CA - G2
-Not Before: May 12 00:00:00 2015 GMT
-Not After : May 11 23:59:59 2025 GMT
------BEGIN CERTIFICATE-----
-MIIEajCCA1KgAwIBAgIQP5KHvp0dpKN6nfYoLndaxDANBgkqhkiG9w0BAQsFADCB
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------END CERTIFICATE-----
-
-Subject: C=US, O=VeriSign, Inc., OU=VeriSign Trust Network, OU=(c) 2006 VeriSign, Inc. - For authorized use only, CN=VeriSign Class 3 Public Primary Certification Authority - G5
-Not Before: Nov  8 00:00:00 2006 GMT
-Not After : Jul 16 23:59:59 2036 GMT
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
-
-Subject: C=US, O=The Go Daddy Group, Inc., OU=Go Daddy Class 2 Certification Authority
-Not Before: Jun 29 17:06:20 2004 GMT
-Not After : Jun 29 17:06:20 2034 GMT
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
-
-# Note: Amazon ATS endpoint uses this (2018/12/18)
-Subject: C=US, O=Starfield Technologies, Inc., OU=Starfield Class 2 Certification Authority
-Not Before: Jun 29 17:39:16 2004 GMT
-Not After : Jun 29 17:39:16 2034 GMT
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
-
-Not Before: Sep  1 00:00:00 2009 GMT
-Not After : Dec 31 23:59:59 2037 GMT
-Subject: C=US, ST=Arizona, L=Scottsdale, O=Starfield Technologies, Inc., CN=Starfield Root Certificate Authority - G2
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
-
-Subject: C=US, ST=Arizona, L=Scottsdale, O=Starfield Technologies, Inc., CN=Starfield Services Root Certificate Authority - G2
-Not Before: Sep  1 00:00:00 2009 GMT
-Not After : Dec 31 23:59:59 2037 GMT
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
-
-Subject: OU=GlobalSign Root CA - R2, O=GlobalSign, CN=GlobalSign
-Not Before: Dec 15 08:00:00 2006 GMT
-Not After : Dec 15 08:00:00 2021 GMT
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
-
-Subject: C=US, O=DigiCert Inc, OU=www.digicert.com, CN=DigiCert High Assurance EV Root CA
-Not Before: Nov 10 00:00:00 2006 GMT
-Not After : Nov 10 00:00:00 2031 GMT
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
-
-Subject: C=US, O=DigiCert Inc, OU=www.digicert.com, CN=DigiCert Global Root CA
-Not Before: Nov 10 00:00:00 2006 GMT
-Not After : Nov 10 00:00:00 2031 GMT
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
-
-# *.azure-devices.de use this root.
-Subject: C = DE, O = D-Trust GmbH, CN = D-TRUST Root Class 3 CA 2 2009
-Not Before: Nov  5 08:35:58 2009 GMT
-Not After : Nov  5 08:35:58 2029 GMT
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
-
-# https://www.amazontrust.com/repository/
-Subject: C = US, O = Amazon, CN = Amazon Root CA 1
-Not Before: May 26 00:00:00 2015 GMT
-Not After : Jan 17 00:00:00 2038 GMT
------BEGIN CERTIFICATE-----
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-rqXRfboQnoZsG4q5WTP468SQvvG5
------END CERTIFICATE-----
-
-Subject: C = US, O = Amazon, CN = Amazon Root CA 2
-Not Before: May 26 00:00:00 2015 GMT
-Not After : May 26 00:00:00 2040 GMT
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
-
-Not Before: May 26 00:00:00 2015 GMT
-Not After : May 26 00:00:00 2040 GMT
-Subject: C = US, O = Amazon, CN = Amazon Root CA 3
------BEGIN CERTIFICATE-----
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-YyRIHN8wfdVoOw==
------END CERTIFICATE-----
-
-Not Before: May 26 00:00:00 2015 GMT
-Not After : May 26 00:00:00 2040 GMT
-Subject: C = US, O = Amazon, CN = Amazon Root CA 4
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
-
-Not Before: Nov 10 00:00:00 2006 GMT
-Not After : Nov 10 00:00:00 2031 GMT
-Subject: C = US, O = DigiCert Inc, OU = www.digicert.com, CN = DigiCert Global Root CA
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
-
-Not Before: Nov 13 00:00:00 2012 GMT
-Not After : Jan 19 03:14:07 2038 GMT
-Subject: OU = GlobalSign ECC Root CA - R4, O = GlobalSign, CN = GlobalSign
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
-
-Not Before: Nov  1 00:00:42 2018 GMT
-Not After : Nov  1 00:00:42 2042 GMT
-Subject: C = US, O = Google Trust Services LLC, CN = GTS LTSR
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----

examples/http-reverse-proxy/ca.pem

@@ -0,0 +1 @@
+../../test/data/ca.pem

examples/http-reverse-proxy/main.c

@@ -28,44 +28,43 @@ static void forward_request(struct mg_http_message *hm,
   }
   mg_send(c, "\r\n", 2);
   mg_send(c, hm->body.ptr, hm->body.len);
-  LOG(LL_DEBUG, ("FORWARDING: %.*s %.*s", (int) hm->method.len, hm->method.ptr,
-                 (int) hm->uri.len, hm->uri.ptr));
+  MG_DEBUG(("FORWARDING: %.*s %.*s", (int) hm->method.len, hm->method.ptr,
+            (int) hm->uri.len, hm->uri.ptr));
+}
+
+static void fn2(struct mg_connection *c, int ev, void *ev_data, void *fn_data) {
+  struct mg_connection *c2 = fn_data;
+  if (ev == MG_EV_READ) {
+    // All incoming data from the backend, forward to the client
+    if (c2 != NULL) mg_send(c2, c->recv.buf, c->recv.len);
+    mg_iobuf_del(&c->recv, 0, c->recv.len);
+  } else if (ev == MG_EV_CLOSE) {
+    if (c2 != NULL) c2->fn_data = NULL;
+  }
+  (void) ev_data;
 }
 
 static void fn(struct mg_connection *c, int ev, void *ev_data, void *fn_data) {
   struct mg_connection *c2 = fn_data;
   if (ev == MG_EV_HTTP_MSG) {
     struct mg_http_message *hm = (struct mg_http_message *) ev_data;
-    if (c->label[0] != 'B' && c2 == NULL) {
-      // Client request, create backend connection Note that we're passing
-      // client connection `c` as fn_data for the created backend connection.
-      // This way, we tie together these two connections via `fn_data` pointer:
-      // client's c->fn_data points to the backend connection, and backend's
-      // c->fn_data points to the client connection
-      c2 = mg_connect(c->mgr, s_backend_url, fn, c);
-      c->fn_data = c2;
-      if (c2 != NULL) {
-        c2->is_hexdumping = 1;
-        c2->label[0] = 'B';  // Mark this connection as backend
-      } else {
-        c->is_closing = 1;
+    // Client request, create backend connection Note that we're passing
+    // client connection `c` as fn_data for the created backend connection.
+    c2 = mg_connect(c->mgr, s_backend_url, fn2, c);
+    if (c2 == NULL) {
+      mg_error(c, "Cannot create backend connection");
+    } else {
+      if (mg_url_is_ssl(s_backend_url)) {
+        struct mg_tls_opts opts = {.ca = "ca.pem"};
+        mg_tls_init(c2, &opts);
       }
-    }
-    if (c2 != NULL && c2->label[0] == 'B') forward_request(hm, c2);
-  } else if (ev == MG_EV_READ) {
-    if (c->label[0] == 'B' && c2 != NULL) {
-      // All incoming data from the backend, forward to the client
-      mg_send(c2, c->recv.buf, c->recv.len);
-      mg_iobuf_delete(&c->recv, c->recv.len);
-    }
-  } else if (ev == MG_EV_CONNECT) {
-    if (mg_url_is_ssl(s_backend_url)) {
-      struct mg_tls_opts opts = {.ca = "ca.pem"};
-      mg_tls_init(c, &opts);
+      c->fn_data = c2;
+      forward_request(hm, c2);
+      c2->is_hexdumping = 1;
     }
   } else if (ev == MG_EV_CLOSE) {
-    if (c->label[0] != 'B' && c2 != NULL) c2->is_closing = 1;
-    c->fn_data = NULL;
+    if (c2 != NULL) c2->is_closing = 1;
+    if (c2 != NULL) c2->fn_data = NULL;
   }
 }