move to new skeleton

tutorials/http/http-server/Makefile

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+PROG ?= example                   # Program we are building
+DELETE = rm -rf                   # Command to remove files
+OUT ?= -o $(PROG)                 # Compiler argument for output file
+SOURCES = main.c mongoose.c       # Source code files
+CFLAGS = -W -Wall -Wextra -g -I.  # Build options
+
+# Mongoose build options. See https://mongoose.ws/documentation/#build-options
+CFLAGS_MONGOOSE += -DMG_HTTP_DIRLIST_TIME_FMT="%Y/%m/%d %H:%M:%S"
+CFLAGS_MONGOOSE += -DMG_ENABLE_LINES=1 -DMG_ENABLE_IPV6=1 -DMG_ENABLE_SSI=1
+
+ifeq ($(OS),Windows_NT)   # Windows settings. Assume MinGW compiler. To use VC: make CC=cl CFLAGS=/MD OUT=/Feprog.exe
+  PROG ?= example.exe           # Use .exe suffix for the binary
+  CC = gcc                      # Use MinGW gcc compiler
+  CFLAGS += -lws2_32            # Link against Winsock library
+  DELETE = cmd /C del /Q /F /S  # Command prompt command to delete files
+  OUT ?= -o $(PROG)             # Build output
+endif
+
+all: $(PROG)              # Default target. Build and run program
+	$(RUN) ./$(PROG) $(ARGS)
+
+$(PROG): $(SOURCES)       # Build program from sources
+	$(CC) $(SOURCES) $(CFLAGS) $(CFLAGS_MONGOOSE) $(CFLAGS_EXTRA) $(OUT)
+
+clean:                    # Cleanup. Delete built program and all build artifacts
+	$(DELETE) $(PROG) *.o *.obj *.exe *.dSYM

tutorials/http/http-server/README.md

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+See detailed tutorial at https://mongoose.ws/tutorials/http-server/

tutorials/http/http-server/main.c

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+// Copyright (c) 2020 Cesanta Software Limited
+// All rights reserved
+
+#include <signal.h>
+#include "mongoose.h"
+
+static int s_debug_level = MG_LL_INFO;
+static const char *s_root_dir = ".";
+static const char *s_listening_address = "http://0.0.0.0:8000";
+static const char *s_enable_hexdump = "no";
+static const char *s_ssi_pattern = "#.html";
+static const char *s_upload_dir = NULL;  // File uploads disabled by default
+
+// Handle interrupts, like Ctrl-C
+static int s_signo;
+static void signal_handler(int signo) {
+  s_signo = signo;
+}
+
+// Event handler for the listening connection.
+// Simply serve static files from `s_root_dir`
+static void cb(struct mg_connection *c, int ev, void *ev_data) {
+  if (ev == MG_EV_HTTP_MSG) {
+    struct mg_http_message *hm = ev_data;
+
+    if (mg_match(hm->uri, mg_str("/upload"), NULL)) {
+      // Serve file upload
+      if (s_upload_dir == NULL) {
+        mg_http_reply(c, 403, "", "Denied: file upload directory not set\n");
+      } else {
+        struct mg_http_part part;
+        size_t pos = 0, total_bytes = 0, num_files = 0;
+        while ((pos = mg_http_next_multipart(hm->body, pos, &part)) > 0) {
+          char path[MG_PATH_MAX];
+          MG_INFO(("Chunk name: [%.*s] filename: [%.*s] length: %lu bytes",
+                   part.name.len, part.name.buf, part.filename.len,
+                   part.filename.buf, part.body.len));
+          mg_snprintf(path, sizeof(path), "%s/%.*s", s_upload_dir,
+                      part.filename.len, part.filename.buf);
+          if (mg_path_is_sane(mg_str(path))) {
+            mg_file_write(&mg_fs_posix, path, part.body.buf, part.body.len);
+            total_bytes += part.body.len;
+            num_files++;
+          } else {
+            MG_ERROR(("Rejecting dangerous path %s", path));
+          }
+        }
+        mg_http_reply(c, 200, "", "Uploaded %lu files, %lu bytes\n", num_files,
+                      total_bytes);
+      }
+    } else {
+      // Serve web root directory
+      struct mg_http_serve_opts opts = {0};
+      opts.root_dir = s_root_dir;
+      opts.ssi_pattern = s_ssi_pattern;
+      mg_http_serve_dir(c, hm, &opts);
+    }
+
+    // Log request
+    MG_INFO(("%.*s %.*s %lu -> %.*s %lu", hm->method.len, hm->method.buf,
+             hm->uri.len, hm->uri.buf, hm->body.len, 3, c->send.buf + 9,
+             c->send.len));
+  }
+}
+
+static void usage(const char *prog) {
+  fprintf(stderr,
+          "Mongoose v.%s\n"
+          "Usage: %s OPTIONS\n"
+          "  -H yes|no - enable traffic hexdump, default: '%s'\n"
+          "  -S PAT    - SSI filename pattern, default: '%s'\n"
+          "  -d DIR    - directory to serve, default: '%s'\n"
+          "  -l ADDR   - listening address, default: '%s'\n"
+          "  -u DIR    - file upload directory, default: unset\n"
+          "  -v LEVEL  - debug level, from 0 to 4, default: %d\n",
+          MG_VERSION, prog, s_enable_hexdump, s_ssi_pattern, s_root_dir,
+          s_listening_address, s_debug_level);
+  exit(EXIT_FAILURE);
+}
+
+int main(int argc, char *argv[]) {
+  char path[MG_PATH_MAX] = ".";
+  struct mg_mgr mgr;
+  struct mg_connection *c;
+  int i;
+
+  // Parse command-line flags
+  for (i = 1; i < argc; i++) {
+    if (strcmp(argv[i], "-d") == 0) {
+      s_root_dir = argv[++i];
+    } else if (strcmp(argv[i], "-H") == 0) {
+      s_enable_hexdump = argv[++i];
+    } else if (strcmp(argv[i], "-S") == 0) {
+      s_ssi_pattern = argv[++i];
+    } else if (strcmp(argv[i], "-l") == 0) {
+      s_listening_address = argv[++i];
+    } else if (strcmp(argv[i], "-u") == 0) {
+      s_upload_dir = argv[++i];
+    } else if (strcmp(argv[i], "-v") == 0) {
+      s_debug_level = atoi(argv[++i]);
+    } else {
+      usage(argv[0]);
+    }
+  }
+
+  // Root directory must not contain double dots. Make it absolute
+  // Do the conversion only if the root dir spec does not contain overrides
+  if (strchr(s_root_dir, ',') == NULL) {
+    realpath(s_root_dir, path);
+    s_root_dir = path;
+  }
+
+  // Initialise stuff
+  signal(SIGINT, signal_handler);
+  signal(SIGTERM, signal_handler);
+  mg_log_set(s_debug_level);
+  mg_mgr_init(&mgr);
+  if ((c = mg_http_listen(&mgr, s_listening_address, cb, &mgr)) == NULL) {
+    MG_ERROR(("Cannot listen on %s. Use http://ADDR:PORT or :PORT",
+              s_listening_address));
+    exit(EXIT_FAILURE);
+  }
+  if (mg_casecmp(s_enable_hexdump, "yes") == 0) c->is_hexdumping = 1;
+
+  // Start infinite event loop
+  MG_INFO(("Mongoose version : v%s", MG_VERSION));
+  MG_INFO(("Listening on     : %s", s_listening_address));
+  MG_INFO(("Web root         : [%s]", s_root_dir));
+  MG_INFO(("Upload dir       : [%s]", s_upload_dir ? s_upload_dir : "unset"));
+  while (s_signo == 0) mg_mgr_poll(&mgr, 1000);
+  mg_mgr_free(&mgr);
+  MG_INFO(("Exiting on signal %d", s_signo));
+  return 0;
+}

tutorials/http/http-server/mongoose.c

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+../../../mongoose.c

tutorials/http/http-server/mongoose.h

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+../../../mongoose.h