Add dependencies locally
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25
deps/mongoose/examples/websocket-server/Makefile
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deps/mongoose/examples/websocket-server/Makefile
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PROG ?= example # Program we are building
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DELETE = rm -rf # Command to remove files
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OUT ?= -o $(PROG) # Compiler argument for output file
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SOURCES = main.c mongoose.c # Source code files
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CFLAGS = -W -Wall -Wextra -g -I. # Build options
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# Mongoose build options. See https://mongoose.ws/documentation/#build-options
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CFLAGS_MONGOOSE += -DMG_ENABLE_LINES
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ifeq ($(OS),Windows_NT) # Windows settings. Assume MinGW compiler. To use VC: make CC=cl CFLAGS=/MD OUT=/Feprog.exe
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PROG ?= example.exe # Use .exe suffix for the binary
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CC = gcc # Use MinGW gcc compiler
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CFLAGS += -lws2_32 # Link against Winsock library
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DELETE = cmd /C del /Q /F /S # Command prompt command to delete files
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OUT ?= -o $(PROG) # Build output
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endif
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all: $(PROG) # Default target. Build and run program
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$(RUN) ./$(PROG) $(ARGS)
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$(PROG): $(SOURCES) # Build program from sources
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$(CC) $(SOURCES) $(CFLAGS) $(CFLAGS_MONGOOSE) $(CFLAGS_EXTRA) $(OUT)
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clean: # Cleanup. Delete built program and all build artifacts
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$(DELETE) $(PROG) *.o *.obj *.exe *.dSYM
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1
deps/mongoose/examples/websocket-server/README.md
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deps/mongoose/examples/websocket-server/README.md
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See detailed tutorial at https://mongoose.ws/tutorials/websocket-server/
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48
deps/mongoose/examples/websocket-server/main.c
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deps/mongoose/examples/websocket-server/main.c
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// Copyright (c) 2020 Cesanta Software Limited
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// All rights reserved
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//
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// Example Websocket server. See https://mongoose.ws/tutorials/websocket-server/
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#include "mongoose.h"
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static const char *s_listen_on = "ws://localhost:8000";
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static const char *s_web_root = ".";
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// This RESTful server implements the following endpoints:
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// /websocket - upgrade to Websocket, and implement websocket echo server
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// /rest - respond with JSON string {"result": 123}
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// any other URI serves static files from s_web_root
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static void fn(struct mg_connection *c, int ev, void *ev_data, void *fn_data) {
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if (ev == MG_EV_OPEN) {
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// c->is_hexdumping = 1;
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} else if (ev == MG_EV_HTTP_MSG) {
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struct mg_http_message *hm = (struct mg_http_message *) ev_data;
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if (mg_http_match_uri(hm, "/websocket")) {
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// Upgrade to websocket. From now on, a connection is a full-duplex
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// Websocket connection, which will receive MG_EV_WS_MSG events.
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mg_ws_upgrade(c, hm, NULL);
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} else if (mg_http_match_uri(hm, "/rest")) {
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// Serve REST response
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mg_http_reply(c, 200, "", "{\"result\": %d}\n", 123);
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} else {
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// Serve static files
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struct mg_http_serve_opts opts = {.root_dir = s_web_root};
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mg_http_serve_dir(c, ev_data, &opts);
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}
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} else if (ev == MG_EV_WS_MSG) {
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// Got websocket frame. Received data is wm->data. Echo it back!
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struct mg_ws_message *wm = (struct mg_ws_message *) ev_data;
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mg_ws_send(c, wm->data.ptr, wm->data.len, WEBSOCKET_OP_TEXT);
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}
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(void) fn_data;
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}
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int main(void) {
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struct mg_mgr mgr; // Event manager
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mg_mgr_init(&mgr); // Initialise event manager
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printf("Starting WS listener on %s/websocket\n", s_listen_on);
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mg_http_listen(&mgr, s_listen_on, fn, NULL); // Create HTTP listener
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for (;;) mg_mgr_poll(&mgr, 1000); // Infinite event loop
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mg_mgr_free(&mgr);
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return 0;
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}
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1
deps/mongoose/examples/websocket-server/mongoose.c
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deps/mongoose/examples/websocket-server/mongoose.c
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../../mongoose.c
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deps/mongoose/examples/websocket-server/mongoose.h
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deps/mongoose/examples/websocket-server/mongoose.h
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../../mongoose.h
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34
deps/mongoose/examples/websocket-server/test.html
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deps/mongoose/examples/websocket-server/test.html
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<!DOCTYPE html>
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<html lang="en">
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<body>
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<h1>Websocket test client</h1>
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<input id="url" type="text" placeholder="Type URL" value="ws://localhost:8000/websocket" style="width:20em;" />
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<button id="connect">connect</button>
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<div style="height: 0.3em;"> </div>
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<input id="message" type="text" placeholder="Type message" style="width: 20em;" />
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<button id="send">send message</button>
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<div style="margin-top: 1em;">Event log:</div>
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<div id="log" style="background: #eee; height: 10em; padding: 0.5em;"><div>
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</body>
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<script>
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var ws, E = function(id) { return document.getElementById(id); };
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var url = E('url'), connect = E('connect'), message = E('message'), send = E('send'), log = E('log');
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var enable = function(en) { message.disabled = send.disabled = !en; url.disabled = en; connect.innerHTML = en ? 'disconnect' : 'connect'; };
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enable(false)
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connect.onclick = function() {
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if (ws) { ws.close(); return; }
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ws = new WebSocket(url.value);
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if (!ws) return;
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ws.onopen = function() { log.innerHTML += 'CONNECTION OPENED<br/>'; }
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ws.onmessage = function(ev) { log.innerHTML += 'RECEIVED: ' + ev.data + '<br/>'; }
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ws.onerror = function(ev) { log.innerHTML += 'ERROR: ' + ev + '<br/>'; }
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ws.onclose = function() { log.innerHTML += 'CONNECTION CLOSED<br/>'; enable(false); ws = null; }
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enable(true);
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};
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send.onclick = function() {
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if (!ws) return;
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log.innerHTML += 'SENT: ' + message.value + '<br/>';
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ws.send(message.value);
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}
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</script>
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</html>
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