From 44e773af547f9ce0239c6db01b0ea0f5d448f3dd Mon Sep 17 00:00:00 2001 From: cpq Date: Wed, 28 Jan 2026 09:54:51 +0000 Subject: [PATCH] Add http redirect example --- tutorials/http/redirect-to-https/Makefile | 31 ++++++++ tutorials/http/redirect-to-https/main.c | 84 +++++++++++++++++++++ tutorials/http/redirect-to-https/mongoose.c | 1 + tutorials/http/redirect-to-https/mongoose.h | 1 + 4 files changed, 117 insertions(+) create mode 100644 tutorials/http/redirect-to-https/Makefile create mode 100644 tutorials/http/redirect-to-https/main.c create mode 120000 tutorials/http/redirect-to-https/mongoose.c create mode 120000 tutorials/http/redirect-to-https/mongoose.h diff --git a/tutorials/http/redirect-to-https/Makefile b/tutorials/http/redirect-to-https/Makefile new file mode 100644 index 00000000..cd80e97b --- /dev/null +++ b/tutorials/http/redirect-to-https/Makefile @@ -0,0 +1,31 @@ +PROG ?= example # Program we are building +DELETE = rm -rf # Command to remove files +OUT ?= -o $(PROG) # Compiler argument for output file +SOURCES = main.c mongoose.c # Source code files +CFLAGS = -W -Wall -Wextra -g -I. # Build options +#CFLAGS += -fsanitize=address,undefined,alignment + +# Mongoose build options. See https://mongoose.ws/documentation/#build-options +CFLAGS_MONGOOSE += -DMG_HTTP_DIRLIST_TIME_FMT="%Y/%m/%d %H:%M:%S" +CFLAGS_MONGOOSE += -DMG_ENABLE_LINES=1 -DMG_ENABLE_IPV6=1 -DMG_ENABLE_SSI=1 +CFLAGS_EXTRA ?= -DMG_TLS=MG_TLS_BUILTIN + +ifeq ($(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 -lbcrypt # 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) + +vc98: + cl $(SOURCES) -DMG_ENABLE_SSI=1 -DMG_TLS=MG_TLS_BUILTIN + +clean: # Cleanup. Delete built program and all build artifacts + $(DELETE) $(PROG) *.o *.obj *.exe *.dSYM diff --git a/tutorials/http/redirect-to-https/main.c b/tutorials/http/redirect-to-https/main.c new file mode 100644 index 00000000..8db3d211 --- /dev/null +++ b/tutorials/http/redirect-to-https/main.c @@ -0,0 +1,84 @@ +// Copyright (c) 2026 Cesanta Software Limited +// All rights reserved + +#include "mongoose.h" + +static int s_debug_level = MG_LL_DEBUG; +static const char *s_http_addr = "http://0.0.0.0:8000"; +static const char *s_https_addr = "https://0.0.0.0:8443"; + +// Self signed certificates, see +// https://github.com/cesanta/mongoose/blob/master/test/certs/generate.sh +static const char *s_tls_cert = + "-----BEGIN CERTIFICATE-----\n" + "MIIBMTCB2aADAgECAgkAluqkgeuV/zUwCgYIKoZIzj0EAwIwEzERMA8GA1UEAwwI\n" + "TW9uZ29vc2UwHhcNMjQwNTA3MTQzNzM2WhcNMzQwNTA1MTQzNzM2WjARMQ8wDQYD\n" + "VQQDDAZzZXJ2ZXIwWTATBgcqhkjOPQIBBggqhkjOPQMBBwNCAASo3oEiG+BuTt5y\n" + "ZRyfwNr0C+SP+4M0RG2pYkb2v+ivbpfi72NHkmXiF/kbHXtgmSrn/PeTqiA8M+mg\n" + "BhYjDX+zoxgwFjAUBgNVHREEDTALgglsb2NhbGhvc3QwCgYIKoZIzj0EAwIDRwAw\n" + "RAIgTXW9MITQSwzqbNTxUUdt9DcB+8pPUTbWZpiXcA26GMYCIBiYw+DSFMLHmkHF\n" + "+5U3NXW3gVCLN9ntD5DAx8LTG8sB\n" + "-----END CERTIFICATE-----\n"; + +static const char *s_tls_key = + "-----BEGIN EC PRIVATE KEY-----\n" + "MHcCAQEEIAVdo8UAScxG7jiuNY2UZESNX/KPH8qJ0u0gOMMsAzYWoAoGCCqGSM49\n" + "AwEHoUQDQgAEqN6BIhvgbk7ecmUcn8Da9Avkj/uDNERtqWJG9r/or26X4u9jR5Jl\n" + "4hf5Gx17YJkq5/z3k6ogPDPpoAYWIw1/sw==\n" + "-----END EC PRIVATE KEY-----\n"; + +// HTTPS listener serves requests +static void https_ev_handler(struct mg_connection *c, int ev, void *ev_data) { + if (ev == MG_EV_ACCEPT && c->is_tls) { + struct mg_tls_opts opts; + memset(&opts, 0, sizeof(opts)); + opts.cert = mg_str(s_tls_cert); + opts.key = mg_str(s_tls_key); + mg_tls_init(c, &opts); + } + + if (ev == MG_EV_HTTP_MSG) { + struct mg_http_message *hm = (struct mg_http_message *) ev_data; + if (mg_match(hm->uri, mg_str("/api/hello"), NULL)) { + mg_http_reply(c, 200, "", "{%m:%d}\n", MG_ESC("status"), 1); + } else { + mg_http_reply(c, 200, "", "Hi! Curent time is %llu", mg_now()); + } + } +} + +// HTTP listener sends redirects to HTTPS +static void http_ev_handler(struct mg_connection *c, int ev, void *ev_data) { + if (ev == MG_EV_HTTP_MSG) { + struct mg_http_message *hm = (struct mg_http_message *) ev_data; + char buf[256]; + mg_snprintf(buf, sizeof(buf), "Location: %s%.*s\r\n", s_https_addr, + hm->uri.len, hm->uri.buf); + mg_http_reply(c, 302, buf, "%s", buf); // 302 redirect + } +} + +int main(void) { + struct mg_mgr mgr; + + mg_log_set(s_debug_level); + mg_mgr_init(&mgr); + + if (mg_http_listen(&mgr, s_http_addr, http_ev_handler, NULL) == NULL) { + exit(EXIT_FAILURE); + } + + if (mg_http_listen(&mgr, s_https_addr, https_ev_handler, NULL) == NULL) { + exit(EXIT_FAILURE); + } + + MG_INFO(("Mongoose version : v%s", MG_VERSION)); + MG_INFO(("HTTP listener : %s", s_http_addr)); + MG_INFO(("HTTPS listener : %s", s_https_addr)); + for (;;) { + mg_mgr_poll(&mgr, 1000); + } + + mg_mgr_free(&mgr); + return 0; +} diff --git a/tutorials/http/redirect-to-https/mongoose.c b/tutorials/http/redirect-to-https/mongoose.c new file mode 120000 index 00000000..5e522bbc --- /dev/null +++ b/tutorials/http/redirect-to-https/mongoose.c @@ -0,0 +1 @@ +../../../mongoose.c \ No newline at end of file diff --git a/tutorials/http/redirect-to-https/mongoose.h b/tutorials/http/redirect-to-https/mongoose.h new file mode 120000 index 00000000..ee4ac823 --- /dev/null +++ b/tutorials/http/redirect-to-https/mongoose.h @@ -0,0 +1 @@ +../../../mongoose.h \ No newline at end of file