Removed supernode Server
Removed supernode server so that this repo can be templated directly for projects
This commit is contained in:
sairajzero
parent
243e3300ae
commit
8fd579dc5e
6
.gitattributes
vendored
6
.gitattributes
vendored
@ -1,6 +0,0 @@
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*.gitattributes linguist-vendored
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util/mongoose.c linguist-vendored
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util/mongoose.h linguist-vendored
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.gitattributes export-ignore
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util/* export-ignore
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72
index.html
72
index.html
@ -5311,81 +5311,9 @@
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reject(error);
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});
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});
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},
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//Supernode initate (call this function only when client is authorized as supernode)
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/* DO NOT edit this function
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To edit the response or callback, edit the reactor eventListener given below
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*/
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initSupernode: function (pwd, floID) {
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return new Promise((resolve, reject) => {
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try {
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this.supernodeClientWS = new WebSocket("ws://" + floGlobals.supernodes[floID].uri + "/ws");
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this.supernodeClientWS.onopen = (evt) => {
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this.supernodeClientWS.send("$" + pwd);
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reactor.dispatchEvent('supernode_open', evt);
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};
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this.supernodeClientWS.onclose = (evt) => {
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reactor.dispatchEvent('supernode_close', evt);
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};
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this.supernodeClientWS.onmessage = (evt) => {
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if (evt.data[0] == '$') {
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reactor.dispatchEvent('supernode_admin', evt.data.substr(1));
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if (evt.data == '$Access Granted!')
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resolve("Access Granted! Initiated Supernode client");
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else if (evt.data == '$Access Denied!')
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reject("Access Denied! Failed to initiate Supernode client");
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} else if (evt.data[0] == '?')
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reactor.dispatchEvent('supernode_processRequest', evt.data.substr(1));
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else
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reactor.dispatchEvent('supernode_processData', evt.data);
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};
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this.supernodeClientWS.onerror = (evt) => {
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reactor.dispatchEvent('supernode_error', evt);
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reject(evt);
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};
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} catch (error) {
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reject(error)
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}
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});
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}
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}
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//Event fired when connected to supernode websocket
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reactor.registerEvent('supernode_open');
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reactor.addEventListener('supernode_open', function (event) {
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console.log('Connected to supernode websocket!');
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});
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//Event fired when disconnected from supernode websocket
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reactor.registerEvent('supernode_close');
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reactor.addEventListener('supernode_close', function (event) {
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console.log('Disconnected from supernode websocket!');
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});
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//Event fired when connection error with supernode websocket
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reactor.registerEvent('supernode_error');
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reactor.addEventListener('supernode_error', function (event) {
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console.log('Error! Unable to connect supernode websocket!');
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});
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//Event fired when received admin messages from WSS
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reactor.registerEvent('supernode_admin');
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reactor.addEventListener('supernode_admin', function (message) {
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console.log('Admin Message :',message);
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});
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//Event fired during incoming request
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reactor.registerEvent('supernode_processRequest');
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reactor.addEventListener('supernode_processRequest', function (request) {
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console.log('Request :',request);
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});
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//Event fired during incoming data
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reactor.registerEvent('supernode_processData');
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reactor.addEventListener('supernode_processData', function (data) {
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console.log('Data :',data);
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});
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</script>
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<script>
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/* Compact IndexedDB operations */
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BIN
supernodeWSS
BIN
supernodeWSS
Binary file not shown.
16548
util/mongoose.c
16548
util/mongoose.c
File diff suppressed because it is too large
Load Diff
6683
util/mongoose.h
6683
util/mongoose.h
File diff suppressed because it is too large
Load Diff
170
util/websocket.c
170
util/websocket.c
@ -1,170 +0,0 @@
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/*
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* Copyright (c) 2014 Cesanta Software Limited
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* All rights reserved
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*/
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#include "mongoose.h"
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static sig_atomic_t s_signal_received = 0;
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static const char *s_http_port = "8000";
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static struct mg_serve_http_opts s_http_server_opts;
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static char server_pwd[100];
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static struct mg_connection *supernode_client = NULL;
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static void signal_handler(int sig_num) {
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signal(sig_num, signal_handler); // Reinstantiate signal handler
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s_signal_received = sig_num;
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}
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//Display Message in console/terminal
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static void display(struct mg_connection *nc, char type[25]){
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char addr[32];
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mg_sock_addr_to_str(&nc->sa, addr, sizeof(addr), MG_SOCK_STRINGIFY_IP | MG_SOCK_STRINGIFY_PORT);
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printf("%s\t%s\n", addr, type);
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}
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//Broadcast incoming message (from nc to all)
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static void broadcast(struct mg_connection *nc, const struct mg_str msg) {
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char addr[32];
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mg_sock_addr_to_str(&nc->sa, addr, sizeof(addr), MG_SOCK_STRINGIFY_IP | MG_SOCK_STRINGIFY_PORT);
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printf("%s\tBroadcast\t[%d]\n", addr, (int)msg.len);
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struct mg_connection *c;
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for (c = mg_next(nc->mgr, NULL); c != NULL; c = mg_next(nc->mgr, c)) {
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if (c == nc) continue; /* Don't send to the sender. */
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mg_send_websocket_frame(c, WEBSOCKET_OP_TEXT, msg.p, msg.len);
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}
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}
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//Unicast message (to nc)
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static void unicast(struct mg_connection *nc, const struct mg_str msg) {
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char addr[32];
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mg_sock_addr_to_str(&nc->sa, addr, sizeof(addr), MG_SOCK_STRINGIFY_IP | MG_SOCK_STRINGIFY_PORT);
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printf("%s\tUnicast\t[%d]\n", addr, (int)msg.len);
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if(nc != NULL)
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mg_send_websocket_frame(nc, WEBSOCKET_OP_TEXT, msg.p, msg.len);
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}
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//Forward message (from nc to supernode)
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static void unicast_forward(struct mg_connection *nc, const struct mg_str msg) {
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char addr[32];
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mg_sock_addr_to_str(&nc->sa, addr, sizeof(addr), MG_SOCK_STRINGIFY_IP | MG_SOCK_STRINGIFY_PORT);
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printf("%s\tForward\t[%d]\n", addr, (int)msg.len);
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if(supernode_client != NULL)
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mg_send_websocket_frame(supernode_client, WEBSOCKET_OP_TEXT, msg.p, msg.len);
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else
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printf("SuperNode client is offline!\n");
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}
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//Request message (from nc to supernode)
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static void unicast_request(struct mg_connection *nc, const struct mg_str msg) {
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if(supernode_client == NULL){
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printf("SuperNode client is offline!\n");
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return;
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}
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char addr[32], buf[500];
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mg_sock_addr_to_str(&nc->sa, addr, sizeof(addr), MG_SOCK_STRINGIFY_IP | MG_SOCK_STRINGIFY_PORT);
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printf("%s\tRequest\t[%d]\n", addr, (int)msg.len-1);
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snprintf(buf, sizeof(buf), "?%s %.*s", addr, (int) msg.len-1, msg.p+1);
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mg_send_websocket_frame(supernode_client, WEBSOCKET_OP_TEXT, buf, strlen(buf));
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}
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//Reply message (from supernode)
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static void unicast_reply(const struct mg_str msg) {
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if(supernode_client == NULL){
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printf("SuperNode client is offline!\n");
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return;
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}
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//Get receiver address from msg
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char receiverAddr[32];
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int index = (int)(strchr(msg.p, ' ') - msg.p) + 1;
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snprintf(receiverAddr, sizeof(receiverAddr), "%.*s", index - 1, msg.p);
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printf("%s\tReply\t[%d]\n", receiverAddr, (int)msg.len - index);
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//send msg to receiver
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struct mg_connection *c;
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for (c = mg_next(supernode_client->mgr, NULL); c != NULL; c = mg_next(supernode_client->mgr, c)) {
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char addr[32];
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mg_sock_addr_to_str(&c->sa, addr, sizeof(addr), MG_SOCK_STRINGIFY_IP | MG_SOCK_STRINGIFY_PORT);
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if (!strcmp(receiverAddr,addr))
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mg_send_websocket_frame(c, WEBSOCKET_OP_TEXT, msg.p + index, msg.len - index);
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}
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}
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static void ev_handler(struct mg_connection *nc, int ev, void *ev_data) {
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switch (ev) {
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case MG_EV_WEBSOCKET_HANDSHAKE_DONE: {
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/*New websocket connection*/
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display(nc, "+Connected+");
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break;
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}
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case MG_EV_WEBSOCKET_FRAME: {
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struct websocket_message *wm = (struct websocket_message *) ev_data;
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/* New websocket message*/
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struct mg_str d = {(char *) wm->data, wm->size};
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if (d.p[0] == '$'){
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char pass[100];
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snprintf(pass, sizeof(pass), "%.*s",(int)d.len-1, &d.p[1]);
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if(!strcmp(pass,server_pwd)){
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if(supernode_client!=NULL)
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unicast(supernode_client,mg_mk_str("$Another login is encountered! Please close/refresh this window"));
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supernode_client = nc;
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unicast(supernode_client,mg_mk_str("$Access Granted!"));
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display(nc, "*Became SuperNode*");
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}else
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unicast(nc,mg_mk_str("$Access Denied!"));
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}
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else if (d.p[0] == '?')
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unicast_request(nc,d);
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else if (nc == supernode_client)
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unicast_reply(d);
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else
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unicast_forward(nc,d);
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break;
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}
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case MG_EV_HTTP_REQUEST: {
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mg_serve_http(nc, (struct http_message *) ev_data, s_http_server_opts);
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break;
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}
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case MG_EV_CLOSE: {
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/* Disconnect websocket*/
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if(nc == supernode_client){
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supernode_client = NULL;
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display(nc,"!SuperNode Disconnected!");
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}else
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display(nc, "-Disconnected-");
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break;
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}
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}
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}
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int main(int argc, char** argv) {
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if(argc<=1){
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printf("Enter server password : ");
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scanf("%s",server_pwd);
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}
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else
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strcpy(server_pwd,argv[1]);
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struct mg_mgr mgr;
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struct mg_connection *nc;
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signal(SIGTERM, signal_handler);
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signal(SIGINT, signal_handler);
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setvbuf(stdout, NULL, _IOLBF, 0);
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setvbuf(stderr, NULL, _IOLBF, 0);
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mg_mgr_init(&mgr, NULL);
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nc = mg_bind(&mgr, s_http_port, ev_handler);
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mg_set_protocol_http_websocket(nc);
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s_http_server_opts.document_root = "."; // Serve current directory
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s_http_server_opts.enable_directory_listing = "no";
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printf("Started on port %s\n", s_http_port);
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while (s_signal_received == 0) {
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mg_mgr_poll(&mgr, 200);
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}
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mg_mgr_free(&mgr);
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return 0;
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}
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