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<!DOCTYPE html> <html> <head> <title>server.js</title> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <link rel="stylesheet" media="all" href="docco.css" /> </head> <body> <div id="container"> <div id="background"></div> <table cellpadding="0" cellspacing="0"> <thead> <tr> <th class="docs"> <h1> server.js </h1> </th> <th class="code"> </th> </tr> </thead> <tbody> <tr id="section-1"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-1">¶</a> </div> <p>nodechat.js
Copyright(c) 2011 Justin Slattery <a href="mailto:justin.slattery@fzysqr.com">justin.slattery@fzysqr.com</a>
MIT Licensed</p> </td> <td class="code"> <div class="highlight"><pre></pre></div> </td> </tr> <tr id="section-2"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-2">¶</a> </div> <p>Global settings</p> </td> <td class="code"> <div class="highlight"><pre><span class="kd">var</span> <span class="nx">dev_port</span> <span class="o">=</span> <span class="mi">8000</span><span class="p">;</span>
<span class="kd">var</span> <span class="nx">server_port</span> <span class="o">=</span> <span class="mi">80</span><span class="p">;</span>
<span class="kd">var</span> <span class="nx">config_file</span> <span class="o">=</span> <span class="s1">'/home/node/nodechat_config'</span><span class="p">;</span></pre></div> </td> </tr> <tr id="section-3"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-3">¶</a> </div> <p>Include core dependencies. </p> </td> <td class="code"> <div class="highlight"><pre><span class="kd">var</span> <span class="nx">_</span> <span class="o">=</span> <span class="nx">require</span><span class="p">(</span><span class="s1">'underscore'</span><span class="p">).</span><span class="nx">_</span>
<span class="p">,</span> <span class="nx">Backbone</span> <span class="o">=</span> <span class="nx">require</span><span class="p">(</span><span class="s1">'backbone'</span><span class="p">)</span>
<span class="p">,</span> <span class="nx">fs</span> <span class="o">=</span> <span class="nx">require</span><span class="p">(</span><span class="s1">'fs'</span><span class="p">)</span>
<span class="p">,</span> <span class="nx">http</span> <span class="o">=</span> <span class="nx">require</span><span class="p">(</span><span class="s1">'http'</span><span class="p">)</span>
<span class="p">,</span> <span class="nx">path</span> <span class="o">=</span> <span class="nx">require</span><span class="p">(</span><span class="s1">'path'</span><span class="p">);</span></pre></div> </td> </tr> <tr id="section-4"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-4">¶</a> </div> <p>Include and configure winston for logging.</p> </td> <td class="code"> <div class="highlight"><pre><span class="kd">var</span> <span class="nx">winston</span> <span class="o">=</span> <span class="nx">require</span><span class="p">(</span><span class="s1">'winston'</span><span class="p">);</span>
<span class="nx">winston</span><span class="p">.</span><span class="nx">add</span><span class="p">(</span><span class="nx">winston</span><span class="p">.</span><span class="nx">transports</span><span class="p">.</span><span class="nx">File</span><span class="p">,</span> <span class="p">{</span> <span class="nx">filename</span><span class="o">:</span> <span class="s1">'nodechat.log'</span> <span class="p">});</span></pre></div> </td> </tr> <tr id="section-5"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-5">¶</a> </div> <p>Include our own modules</p> </td> <td class="code"> <div class="highlight"><pre><span class="kd">var</span> <span class="nx">models</span> <span class="o">=</span> <span class="nx">require</span><span class="p">(</span><span class="s1">'./models/models'</span><span class="p">)</span>
<span class="p">,</span> <span class="nx">auth</span> <span class="o">=</span> <span class="nx">require</span><span class="p">(</span><span class="s1">'./lib/auth'</span><span class="p">)</span>
<span class="p">,</span> <span class="nx">mashlib</span> <span class="o">=</span> <span class="nx">require</span><span class="p">(</span><span class="s1">'./lib/mashlib'</span><span class="p">)</span>
<span class="p">,</span> <span class="nx">ncutils</span> <span class="o">=</span> <span class="nx">require</span><span class="p">(</span><span class="s1">'./lib/ncutils'</span><span class="p">);</span></pre></div> </td> </tr> <tr id="section-6"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-6">¶</a> </div> <p>Require redis and setup the client </p> </td> <td class="code"> <div class="highlight"><pre><span class="kd">var</span> <span class="nx">redis</span> <span class="o">=</span> <span class="nx">require</span><span class="p">(</span><span class="s1">'redis'</span><span class="p">)</span>
<span class="p">,</span> <span class="nx">rc</span> <span class="o">=</span> <span class="nx">redis</span><span class="p">.</span><span class="nx">createClient</span><span class="p">();</span>
<span class="nx">redis</span><span class="p">.</span><span class="nx">debug_mode</span> <span class="o">=</span> <span class="kc">false</span><span class="p">;</span>
<span class="nx">rc</span><span class="p">.</span><span class="nx">on</span><span class="p">(</span><span class="s1">'error'</span><span class="p">,</span> <span class="kd">function</span> <span class="p">(</span><span class="nx">err</span><span class="p">)</span> <span class="p">{</span>
<span class="nx">winston</span><span class="p">.</span><span class="nx">warn</span><span class="p">(</span><span class="s1">'Error '</span> <span class="o">+</span> <span class="nx">err</span><span class="p">);</span>
<span class="p">});</span></pre></div> </td> </tr> <tr id="section-7"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-7">¶</a> </div> <p>Setup connect, express, socket, and the connect-redis session store</p> </td> <td class="code"> <div class="highlight"><pre><span class="kd">var</span> <span class="nx">express</span> <span class="o">=</span> <span class="nx">require</span><span class="p">(</span><span class="s1">'express'</span><span class="p">)</span>
<span class="p">,</span> <span class="nx">app</span> <span class="o">=</span> <span class="nx">express</span><span class="p">.</span><span class="nx">createServer</span><span class="p">()</span>
<span class="p">,</span> <span class="nx">connect</span> <span class="o">=</span> <span class="nx">require</span><span class="p">(</span><span class="s1">'connect'</span><span class="p">)</span>
<span class="p">,</span> <span class="nx">jade</span> <span class="o">=</span> <span class="nx">require</span><span class="p">(</span><span class="s1">'jade'</span><span class="p">)</span>
<span class="p">,</span> <span class="nx">stylus</span> <span class="o">=</span> <span class="nx">require</span><span class="p">(</span><span class="s1">'stylus'</span><span class="p">)</span>
<span class="p">,</span> <span class="nx">socket</span> <span class="o">=</span> <span class="nx">require</span><span class="p">(</span><span class="s1">'socket.io'</span><span class="p">).</span><span class="nx">listen</span><span class="p">(</span><span class="nx">app</span><span class="p">)</span>
<span class="p">,</span> <span class="nx">RedisStore</span> <span class="o">=</span> <span class="nx">require</span><span class="p">(</span><span class="s1">'connect-redis'</span><span class="p">);</span>
<span class="nx">app</span><span class="p">.</span><span class="nx">set</span><span class="p">(</span><span class="s1">'view engine'</span><span class="p">,</span> <span class="s1">'jade'</span><span class="p">);</span>
<span class="nx">app</span><span class="p">.</span><span class="nx">set</span><span class="p">(</span><span class="s1">'view options'</span><span class="p">,</span> <span class="p">{</span><span class="nx">layout</span><span class="o">:</span> <span class="kc">false</span><span class="p">});</span>
<span class="nx">app</span><span class="p">.</span><span class="nx">use</span><span class="p">(</span><span class="nx">express</span><span class="p">.</span><span class="nx">bodyParser</span><span class="p">());</span>
<span class="nx">app</span><span class="p">.</span><span class="nx">use</span><span class="p">(</span><span class="nx">express</span><span class="p">.</span><span class="nx">cookieParser</span><span class="p">());</span>
<span class="nx">app</span><span class="p">.</span><span class="nx">use</span><span class="p">(</span><span class="nx">express</span><span class="p">.</span><span class="nx">session</span><span class="p">({</span> <span class="nx">store</span><span class="o">:</span> <span class="k">new</span> <span class="nx">RedisStore</span><span class="p">(),</span> <span class="nx">secret</span><span class="o">:</span> <span class="s1">'Secretly I am an elephant'</span> <span class="p">}));</span>
<span class="nx">app</span><span class="p">.</span><span class="nx">use</span><span class="p">(</span><span class="nx">express</span><span class="p">.</span><span class="kr">static</span><span class="p">(</span><span class="s1">'./public'</span><span class="p">));</span>
<span class="nx">app</span><span class="p">.</span><span class="nx">use</span><span class="p">(</span><span class="nx">stylus</span><span class="p">.</span><span class="nx">middleware</span><span class="p">({</span>
<span class="nx">src</span><span class="o">:</span> <span class="s1">'./views'</span>
<span class="p">,</span> <span class="nx">dest</span><span class="o">:</span> <span class="s1">'./public'</span>
<span class="p">}));</span></pre></div> </td> </tr> <tr id="section-8"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-8">¶</a> </div> <p>setup stylus</p> </td> <td class="code"> <div class="highlight"><pre><span class="kd">function</span> <span class="nx">compile</span><span class="p">(</span><span class="nx">str</span><span class="p">,</span> <span class="nx">path</span><span class="p">,</span> <span class="nx">fn</span><span class="p">)</span> <span class="p">{</span>
<span class="nx">stylus</span><span class="p">(</span><span class="nx">str</span><span class="p">)</span>
<span class="p">.</span><span class="nx">set</span><span class="p">(</span><span class="s1">'filename'</span><span class="p">,</span> <span class="nx">path</span><span class="p">)</span>
<span class="p">.</span><span class="nx">set</span><span class="p">(</span><span class="s1">'compress'</span><span class="p">,</span> <span class="kc">true</span><span class="p">)</span>
<span class="p">.</span><span class="nx">set</span><span class="p">(</span><span class="s1">'force'</span><span class="p">,</span> <span class="kc">true</span><span class="p">);</span>
<span class="p">}</span></pre></div> </td> </tr> <tr id="section-9"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-9">¶</a> </div> <p>Middleware that decides what a valid login looks like. In this case, just verify that we have a session object for the user.</p>
<p>This is an express <a href="http://expressjs.com/guide.html#route-middleware">route middleware</a>. Control is passed to the middleware function before the route function is called. We use restrictAccess() to verify that we have a valid user key in the session, implying that authentication has succeeded, before we send the client to the index.jade template. If we do not have a valid user in the session, then we redirect to the '/login' route. This effectively locks down our '/' route from unauthenticated access. You could add the restrictAccess() all to any route you want to protect.</p> </td> <td class="code"> <div class="highlight"><pre><span class="kd">function</span> <span class="nx">restrict</span><span class="p">(</span><span class="nx">req</span><span class="p">,</span> <span class="nx">res</span><span class="p">,</span> <span class="nx">next</span><span class="p">)</span> <span class="p">{</span>
<span class="k">if</span> <span class="p">(</span><span class="nx">req</span><span class="p">.</span><span class="nx">session</span><span class="p">.</span><span class="nx">user</span><span class="p">)</span> <span class="p">{</span>
<span class="nx">next</span><span class="p">();</span>
<span class="p">}</span> <span class="k">else</span> <span class="p">{</span>
<span class="nx">req</span><span class="p">.</span><span class="nx">session</span><span class="p">.</span><span class="nx">error</span> <span class="o">=</span> <span class="s1">'Access denied!'</span><span class="p">;</span>
<span class="nx">res</span><span class="p">.</span><span class="nx">redirect</span><span class="p">(</span><span class="s1">'/login'</span><span class="p">);</span>
<span class="p">}</span>
<span class="p">}</span></pre></div> </td> </tr> <tr id="section-10"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-10">¶</a> </div> <p>Tell connect to destory the session.</p> </td> <td class="code"> <div class="highlight"><pre><span class="nx">app</span><span class="p">.</span><span class="nx">get</span><span class="p">(</span><span class="s1">'/logout'</span><span class="p">,</span> <span class="kd">function</span> <span class="p">(</span><span class="nx">req</span><span class="p">,</span> <span class="nx">res</span><span class="p">)</span> <span class="p">{</span></pre></div> </td> </tr> <tr id="section-11"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-11">¶</a> </div> <p>destroy the user's session to log them out
will be re-created next request</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nx">req</span><span class="p">.</span><span class="nx">session</span><span class="p">.</span><span class="nx">destroy</span><span class="p">(</span><span class="kd">function</span> <span class="p">()</span> <span class="p">{</span>
<span class="nx">res</span><span class="p">.</span><span class="nx">redirect</span><span class="p">(</span><span class="s1">'home'</span><span class="p">);</span>
<span class="p">});</span>
<span class="p">});</span>
<span class="nx">app</span><span class="p">.</span><span class="nx">get</span><span class="p">(</span><span class="s1">'/disconnect'</span><span class="p">,</span> <span class="kd">function</span> <span class="p">(</span><span class="nx">req</span><span class="p">,</span> <span class="nx">res</span><span class="p">)</span> <span class="p">{</span>
<span class="nx">res</span><span class="p">.</span><span class="nx">render</span><span class="p">(</span><span class="s1">'disconnect'</span><span class="p">);</span>
<span class="p">});</span></pre></div> </td> </tr> <tr id="section-12"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-12">¶</a> </div> <p>Route: GET /login</p>
<p>Template: login.jade </p> </td> <td class="code"> <div class="highlight"><pre><span class="nx">app</span><span class="p">.</span><span class="nx">get</span><span class="p">(</span><span class="s1">'/login'</span><span class="p">,</span> <span class="kd">function</span> <span class="p">(</span><span class="nx">req</span><span class="p">,</span> <span class="nx">res</span><span class="p">)</span> <span class="p">{</span>
<span class="nx">winston</span><span class="p">.</span><span class="nx">info</span><span class="p">(</span><span class="s1">'GET /login'</span><span class="p">);</span>
<span class="nx">res</span><span class="p">.</span><span class="nx">render</span><span class="p">(</span><span class="s1">'login'</span><span class="p">);</span>
<span class="p">});</span></pre></div> </td> </tr> <tr id="section-13"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-13">¶</a> </div> <p>Route: POST /login</p>
<p>Calls the authentication module to verify login details. Failures are redirected back to the login page.</p>
<p>If the authentication module gives us a user object back, we ask connect to regenerate the session and send the client back to index. Note: we specify a <em>long</em> cookie age so users won't have to log in frequently. We also set the httpOnly flag to false (I know, not so secure) to make the cookie available over <a href="http://help.adobe.com/en_US/FlashPlatform/reference/actionscript/3/flash/net/Socket.html">Flash Sockets</a>.</p> </td> <td class="code"> <div class="highlight"><pre><span class="nx">app</span><span class="p">.</span><span class="nx">post</span><span class="p">(</span><span class="s1">'/login'</span><span class="p">,</span> <span class="kd">function</span> <span class="p">(</span><span class="nx">req</span><span class="p">,</span> <span class="nx">res</span><span class="p">)</span> <span class="p">{</span>
<span class="nx">auth</span><span class="p">.</span><span class="nx">authenticate</span><span class="p">(</span><span class="nx">req</span><span class="p">.</span><span class="nx">body</span><span class="p">.</span><span class="nx">username</span><span class="p">,</span> <span class="nx">req</span><span class="p">.</span><span class="nx">body</span><span class="p">.</span><span class="nx">password</span><span class="p">,</span> <span class="kd">function</span> <span class="p">(</span><span class="nx">err</span><span class="p">,</span> <span class="nx">user</span><span class="p">)</span> <span class="p">{</span>
<span class="k">if</span> <span class="p">(</span><span class="nx">user</span><span class="p">)</span> <span class="p">{</span></pre></div> </td> </tr> <tr id="section-14"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-14">¶</a> </div> <p>Regenerate session when signing in
to prevent fixation </p> </td> <td class="code"> <div class="highlight"><pre> <span class="nx">req</span><span class="p">.</span><span class="nx">session</span><span class="p">.</span><span class="nx">regenerate</span><span class="p">(</span><span class="kd">function</span> <span class="p">()</span> <span class="p">{</span></pre></div> </td> </tr> <tr id="section-15"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-15">¶</a> </div> <p>Store the user's primary key
in the session store to be retrieved,
or in this case the entire user object</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nx">winston</span><span class="p">.</span><span class="nx">info</span><span class="p">(</span><span class="s1">'regenerated session id '</span> <span class="o">+</span> <span class="nx">req</span><span class="p">.</span><span class="nx">session</span><span class="p">.</span><span class="nx">id</span><span class="p">);</span>
<span class="nx">req</span><span class="p">.</span><span class="nx">session</span><span class="p">.</span><span class="nx">cookie</span><span class="p">.</span><span class="nx">maxAge</span> <span class="o">=</span> <span class="mi">100</span> <span class="o">*</span> <span class="mi">24</span> <span class="o">*</span> <span class="mi">60</span> <span class="o">*</span> <span class="mi">60</span> <span class="o">*</span> <span class="mi">1000</span><span class="p">;</span> <span class="c1">//Force longer cookie age</span>
<span class="nx">req</span><span class="p">.</span><span class="nx">session</span><span class="p">.</span><span class="nx">cookie</span><span class="p">.</span><span class="nx">httpOnly</span> <span class="o">=</span> <span class="kc">false</span><span class="p">;</span>
<span class="nx">req</span><span class="p">.</span><span class="nx">session</span><span class="p">.</span><span class="nx">user</span> <span class="o">=</span> <span class="nx">user</span><span class="p">;</span>
<span class="nx">req</span><span class="p">.</span><span class="nx">session</span><span class="p">.</span><span class="nx">hash</span> <span class="o">=</span> <span class="nx">user</span><span class="p">.</span><span class="nx">hashpass</span> <span class="o">||</span> <span class="s1">'No Hash'</span><span class="p">;</span>
<span class="nx">winston</span><span class="p">.</span><span class="nx">info</span><span class="p">(</span><span class="s1">'Storing new hash for user '</span> <span class="o">+</span> <span class="nx">user</span><span class="p">.</span><span class="nx">name</span> <span class="o">+</span> <span class="s1">': '</span> <span class="o">+</span> <span class="nx">req</span><span class="p">.</span><span class="nx">session</span><span class="p">.</span><span class="nx">hash</span><span class="p">);</span>
<span class="nx">res</span><span class="p">.</span><span class="nx">redirect</span><span class="p">(</span><span class="s1">'/'</span><span class="p">);</span>
<span class="p">});</span>
<span class="p">}</span> <span class="k">else</span> <span class="p">{</span>
<span class="nx">req</span><span class="p">.</span><span class="nx">session</span><span class="p">.</span><span class="nx">error</span> <span class="o">=</span> <span class="s1">'Authentication failed, please check your username and password.'</span><span class="p">;</span>
<span class="nx">res</span><span class="p">.</span><span class="nx">redirect</span><span class="p">(</span><span class="s1">'back'</span><span class="p">);</span>
<span class="p">}</span>
<span class="p">});</span>
<span class="p">});</span></pre></div> </td> </tr> <tr id="section-16"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-16">¶</a> </div> <p>Serve up any static file requested by the client</p> </td> <td class="code"> <div class="highlight"><pre><span class="nx">app</span><span class="p">.</span><span class="nx">get</span><span class="p">(</span><span class="s1">'/.(js|css)'</span><span class="p">,</span> <span class="kd">function</span> <span class="p">(</span><span class="nx">req</span><span class="p">,</span> <span class="nx">res</span><span class="p">)</span> <span class="p">{</span>
<span class="nx">res</span><span class="p">.</span><span class="nx">sendfile</span><span class="p">(</span><span class="s1">'./'</span> <span class="o">+</span> <span class="nx">req</span><span class="p">.</span><span class="nx">url</span><span class="p">);</span>
<span class="p">});</span></pre></div> </td> </tr> <tr id="section-17"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-17">¶</a> </div> <p>create local state</p> </td> <td class="code"> <div class="highlight"><pre><span class="kd">var</span> <span class="nx">nodeChatModel</span> <span class="o">=</span> <span class="k">new</span> <span class="nx">models</span><span class="p">.</span><span class="nx">NodeChatModel</span><span class="p">();</span>
<span class="nx">rc</span><span class="p">.</span><span class="nx">lrange</span><span class="p">(</span><span class="s1">'chatentries'</span><span class="p">,</span> <span class="o">-</span><span class="mi">1000</span><span class="p">,</span> <span class="o">-</span><span class="mi">1</span><span class="p">,</span> <span class="kd">function</span> <span class="p">(</span><span class="nx">err</span><span class="p">,</span> <span class="nx">data</span><span class="p">)</span> <span class="p">{</span>
<span class="k">if</span> <span class="p">(</span><span class="nx">err</span><span class="p">)</span>
<span class="p">{</span>
<span class="nx">winston</span><span class="p">.</span><span class="nx">warn</span><span class="p">(</span><span class="s1">'Error: '</span> <span class="o">+</span> <span class="nx">err</span><span class="p">);</span>
<span class="p">}</span>
<span class="k">else</span> <span class="k">if</span> <span class="p">(</span><span class="nx">data</span><span class="p">)</span> <span class="p">{</span>
<span class="nx">_</span><span class="p">.</span><span class="nx">each</span><span class="p">(</span><span class="nx">data</span><span class="p">,</span> <span class="kd">function</span> <span class="p">(</span><span class="nx">jsonChat</span><span class="p">)</span> <span class="p">{</span>
<span class="k">try</span> <span class="p">{</span>
<span class="kd">var</span> <span class="nx">chat</span> <span class="o">=</span> <span class="k">new</span> <span class="nx">models</span><span class="p">.</span><span class="nx">ChatEntry</span><span class="p">();</span>
<span class="nx">chat</span><span class="p">.</span><span class="nx">mport</span><span class="p">(</span><span class="nx">jsonChat</span><span class="p">);</span>
<span class="nx">nodeChatModel</span><span class="p">.</span><span class="nx">chats</span><span class="p">.</span><span class="nx">add</span><span class="p">(</span><span class="nx">chat</span><span class="p">);</span>
<span class="p">}</span>
<span class="k">catch</span> <span class="p">(</span><span class="nx">err</span><span class="p">)</span> <span class="p">{</span>
<span class="nx">winston</span><span class="p">.</span><span class="nx">warn</span><span class="p">(</span><span class="s1">'Failed to revive chat '</span> <span class="o">+</span> <span class="nx">jsonChat</span> <span class="o">+</span> <span class="s1">' with err '</span> <span class="o">+</span> <span class="nx">err</span><span class="p">);</span>
<span class="p">}</span>
<span class="p">});</span>
<span class="nx">winston</span><span class="p">.</span><span class="nx">info</span><span class="p">(</span><span class="s1">'Revived '</span> <span class="o">+</span> <span class="nx">nodeChatModel</span><span class="p">.</span><span class="nx">chats</span><span class="p">.</span><span class="nx">length</span> <span class="o">+</span> <span class="s1">' chats'</span><span class="p">);</span>
<span class="p">}</span>
<span class="k">else</span> <span class="p">{</span>
<span class="nx">winston</span><span class="p">.</span><span class="nx">info</span><span class="p">(</span><span class="s1">'No data returned for key'</span><span class="p">);</span>
<span class="p">}</span>
<span class="p">});</span>
<span class="nx">rc</span><span class="p">.</span><span class="nx">smembers</span><span class="p">(</span><span class="s1">'mashtags'</span><span class="p">,</span> <span class="kd">function</span> <span class="p">(</span><span class="nx">err</span><span class="p">,</span> <span class="nx">data</span><span class="p">)</span> <span class="p">{</span>
<span class="k">if</span> <span class="p">(</span><span class="nx">err</span><span class="p">)</span> <span class="p">{</span>
<span class="nx">winston</span><span class="p">.</span><span class="nx">warn</span><span class="p">(</span><span class="s1">'SMEMBERS for key mashtags failed with error: '</span> <span class="o">+</span> <span class="nx">err</span><span class="p">);</span>
<span class="p">}</span>
<span class="k">else</span> <span class="k">if</span> <span class="p">(</span><span class="nx">data</span><span class="p">)</span> <span class="p">{</span>
<span class="nx">_</span><span class="p">.</span><span class="nx">each</span><span class="p">(</span><span class="nx">data</span><span class="p">,</span> <span class="kd">function</span> <span class="p">(</span><span class="nx">jsonMashTag</span><span class="p">)</span> <span class="p">{</span>
<span class="k">try</span> <span class="p">{</span>
<span class="kd">var</span> <span class="nx">mashTag</span> <span class="o">=</span> <span class="k">new</span> <span class="nx">models</span><span class="p">.</span><span class="nx">MashTagModel</span><span class="p">();</span>
<span class="nx">mashTag</span><span class="p">.</span><span class="nx">mport</span><span class="p">(</span><span class="nx">jsonMashTag</span><span class="p">);</span>
<span class="nx">nodeChatModel</span><span class="p">.</span><span class="nx">globalMashTags</span><span class="p">.</span><span class="nx">add</span><span class="p">(</span><span class="nx">mashTag</span><span class="p">);</span>
<span class="p">}</span>
<span class="k">catch</span> <span class="p">(</span><span class="nx">err</span><span class="p">)</span> <span class="p">{</span>
<span class="nx">winston</span><span class="p">.</span><span class="nx">warn</span><span class="p">(</span><span class="s1">'Failed to revive mashTag '</span> <span class="o">+</span> <span class="nx">jsonMashTag</span> <span class="o">+</span> <span class="s1">' with err '</span> <span class="o">+</span> <span class="nx">err</span><span class="p">);</span>
<span class="p">}</span>
<span class="p">});</span>
<span class="nx">winston</span><span class="p">.</span><span class="nx">info</span><span class="p">(</span><span class="s1">'Revived '</span> <span class="o">+</span> <span class="nx">nodeChatModel</span><span class="p">.</span><span class="nx">globalMashTags</span><span class="p">.</span><span class="nx">length</span> <span class="o">+</span> <span class="s1">' mashtags'</span><span class="p">);</span>
<span class="p">}</span>
<span class="k">else</span> <span class="p">{</span>
<span class="nx">winston</span><span class="p">.</span><span class="nx">info</span><span class="p">(</span><span class="s1">'SMEMBERS for key mashtags returned no data'</span><span class="p">);</span>
<span class="p">}</span>
<span class="p">});</span></pre></div> </td> </tr> <tr id="section-18"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-18">¶</a> </div> <p>When we have a client that shouldn't be connected, <strong>kick 'em off!</strong>' </p>
<ul>
<li>@param {object} client</li>
<li>@param {function} fn</li>
</ul> </td> <td class="code"> <div class="highlight"><pre><span class="kd">function</span> <span class="nx">disconnectAndRedirectClient</span><span class="p">(</span><span class="nx">client</span><span class="p">,</span> <span class="nx">fn</span><span class="p">)</span> <span class="p">{</span>
<span class="nx">winston</span><span class="p">.</span><span class="nx">info</span><span class="p">(</span><span class="s1">'Disconnecting unauthenticated user'</span><span class="p">);</span>
<span class="nx">client</span><span class="p">.</span><span class="nx">send</span><span class="p">({</span> <span class="nx">event</span><span class="o">:</span> <span class="s1">'disconnect'</span> <span class="p">});</span>
<span class="nx">client</span><span class="p">.</span><span class="nx">connection</span><span class="p">.</span><span class="nx">end</span><span class="p">();</span>
<span class="nx">fn</span><span class="p">();</span>
<span class="k">return</span><span class="p">;</span>
<span class="p">}</span></pre></div> </td> </tr> <tr id="section-19"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-19">¶</a> </div> <p>Helper function to send tags to a user</p> </td> <td class="code"> <div class="highlight"><pre><span class="kd">function</span> <span class="nx">sendMashTagsToUser</span><span class="p">(</span><span class="nx">user</span><span class="p">,</span> <span class="nx">mashTag</span><span class="p">)</span> <span class="p">{</span>
<span class="nx">_</span><span class="p">.</span><span class="nx">each</span><span class="p">(</span><span class="nx">user</span><span class="p">.</span><span class="nx">clientList</span><span class="p">,</span> <span class="kd">function</span> <span class="p">(</span><span class="nx">client</span><span class="p">)</span> <span class="p">{</span>
<span class="nx">client</span><span class="p">.</span><span class="nx">send</span><span class="p">({</span>
<span class="nx">event</span><span class="o">:</span> <span class="s1">'mashtag'</span><span class="p">,</span>
<span class="nx">data</span><span class="o">:</span> <span class="nx">mashTag</span><span class="p">.</span><span class="nx">xport</span><span class="p">({</span><span class="nx">recurse</span><span class="o">:</span> <span class="kc">false</span><span class="p">})</span>
<span class="p">});</span>
<span class="p">});</span>
<span class="p">}</span></pre></div> </td> </tr> <tr id="section-20"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-20">¶</a> </div> <p>Event handler for client disconnects. Simply broadcasts the new active client count.</p>
<ul>
<li>@param {object} client</li>
</ul> </td> <td class="code"> <div class="highlight"><pre><span class="kd">function</span> <span class="nx">clientDisconnect</span><span class="p">(</span><span class="nx">client</span><span class="p">,</span> <span class="nx">next</span><span class="p">)</span> <span class="p">{</span>
<span class="nx">winston</span><span class="p">.</span><span class="nx">info</span><span class="p">(</span><span class="s1">'Client disconnecting: '</span> <span class="o">+</span> <span class="nx">client</span><span class="p">.</span><span class="nx">sessionId</span><span class="p">);</span>
<span class="nx">next</span><span class="p">();</span>
<span class="p">}</span>
<span class="kd">function</span> <span class="nx">getConnectedUser</span><span class="p">(</span><span class="nx">data</span><span class="p">,</span> <span class="nx">client</span><span class="p">)</span> <span class="p">{</span>
<span class="kd">var</span> <span class="nx">cleanName</span><span class="p">,</span> <span class="nx">connectedUser</span><span class="p">,</span> <span class="nx">rKey</span><span class="p">,</span> <span class="nx">sUser</span><span class="p">,</span> <span class="nx">mashTag</span><span class="p">;</span>
<span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="nx">data</span> <span class="o">||</span> <span class="o">!</span><span class="nx">data</span><span class="p">.</span><span class="nx">user</span> <span class="o">||</span> <span class="o">!</span><span class="nx">data</span><span class="p">.</span><span class="nx">user</span><span class="p">.</span><span class="nx">name</span><span class="p">)</span> <span class="p">{</span>
<span class="nx">winston</span><span class="p">.</span><span class="nx">warn</span><span class="p">(</span><span class="s1">'[getConnectedUser] called with null data, data.user or data.user.name'</span><span class="p">);</span>
<span class="k">return</span><span class="p">;</span>
<span class="p">}</span>
<span class="nx">cleanName</span> <span class="o">=</span> <span class="nx">data</span><span class="p">.</span><span class="nx">user</span><span class="p">.</span><span class="nx">name</span><span class="p">.</span><span class="nx">replace</span><span class="p">(</span><span class="sr">/</g</span><span class="p">,</span> <span class="s2">"&lt;"</span><span class="p">).</span><span class="nx">replace</span><span class="p">(</span><span class="sr">/>/g</span><span class="p">,</span> <span class="s2">"&gt;"</span><span class="p">);</span>
<span class="nx">connectedUser</span> <span class="o">=</span> <span class="nx">nodeChatModel</span><span class="p">.</span><span class="nx">users</span><span class="p">.</span><span class="nx">find</span><span class="p">(</span><span class="kd">function</span> <span class="p">(</span><span class="nx">user</span><span class="p">)</span> <span class="p">{</span>
<span class="k">return</span> <span class="nx">user</span><span class="p">.</span><span class="nx">get</span><span class="p">(</span><span class="s1">'name'</span><span class="p">)</span> <span class="o">===</span> <span class="nx">cleanName</span><span class="p">;</span>
<span class="p">});</span>
<span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="nx">connectedUser</span><span class="p">)</span> <span class="p">{</span>
<span class="nx">connectedUser</span> <span class="o">=</span> <span class="k">new</span> <span class="nx">models</span><span class="p">.</span><span class="nx">User</span><span class="p">({</span><span class="s1">'client'</span><span class="o">:</span> <span class="nx">client</span><span class="p">,</span> <span class="s1">'name'</span><span class="o">:</span> <span class="nx">cleanName</span><span class="p">});</span>
<span class="nx">connectedUser</span><span class="p">.</span><span class="nx">clientList</span> <span class="o">=</span> <span class="p">[];</span>
<span class="nx">connectedUser</span><span class="p">.</span><span class="nx">clientList</span><span class="p">.</span><span class="nx">push</span><span class="p">(</span><span class="nx">client</span><span class="p">);</span>
<span class="nx">nodeChatModel</span><span class="p">.</span><span class="nx">users</span><span class="p">.</span><span class="nx">add</span><span class="p">(</span><span class="nx">connectedUser</span><span class="p">);</span>
<span class="nx">winston</span><span class="p">.</span><span class="nx">info</span><span class="p">(</span><span class="s1">'[getConnectedUser] new user: '</span> <span class="o">+</span> <span class="nx">connectedUser</span><span class="p">.</span><span class="nx">get</span><span class="p">(</span><span class="s1">'name'</span><span class="p">)</span> <span class="o">+</span> <span class="s1">' on client: '</span> <span class="o">+</span> <span class="nx">client</span><span class="p">.</span><span class="nx">sessionId</span><span class="p">);</span>
<span class="nx">sUser</span> <span class="o">=</span> <span class="k">new</span> <span class="nx">models</span><span class="p">.</span><span class="nx">User</span><span class="p">({</span><span class="nx">name</span><span class="o">:</span> <span class="nx">connectedUser</span><span class="p">.</span><span class="nx">get</span><span class="p">(</span><span class="s1">'name'</span><span class="p">)});</span>
<span class="nx">client</span><span class="p">.</span><span class="nx">broadcast</span><span class="p">({</span>
<span class="nx">event</span><span class="o">:</span> <span class="s1">'user:add'</span><span class="p">,</span>
<span class="nx">data</span><span class="o">:</span> <span class="nx">sUser</span><span class="p">.</span><span class="nx">xport</span><span class="p">({</span><span class="nx">recurse</span><span class="o">:</span> <span class="kc">false</span><span class="p">})</span>
<span class="p">});</span></pre></div> </td> </tr> <tr id="section-21"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-21">¶</a> </div> <p>Grab mashtag subscriptions for user</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nx">rKey</span> <span class="o">=</span> <span class="s1">'user:'</span> <span class="o">+</span> <span class="nx">connectedUser</span><span class="p">.</span><span class="nx">get</span><span class="p">(</span><span class="s1">'name'</span><span class="p">)</span> <span class="o">+</span> <span class="s1">'.mashtags'</span><span class="p">;</span>
<span class="nx">rc</span><span class="p">.</span><span class="nx">smembers</span><span class="p">(</span><span class="nx">rKey</span><span class="p">,</span> <span class="kd">function</span> <span class="p">(</span><span class="nx">err</span><span class="p">,</span> <span class="nx">data</span><span class="p">)</span> <span class="p">{</span>
<span class="k">if</span> <span class="p">(</span><span class="nx">err</span><span class="p">)</span> <span class="p">{</span>
<span class="nx">winston</span><span class="p">.</span><span class="nx">warn</span><span class="p">(</span><span class="s1">'Error retrieving '</span> <span class="o">+</span> <span class="nx">rKey</span> <span class="o">+</span> <span class="s1">': '</span> <span class="o">+</span> <span class="nx">err</span><span class="p">);</span>
<span class="p">}</span>
<span class="k">else</span> <span class="k">if</span> <span class="p">(</span><span class="nx">data</span><span class="p">)</span> <span class="p">{</span>
<span class="nx">_</span><span class="p">.</span><span class="nx">each</span><span class="p">(</span><span class="nx">data</span><span class="p">,</span> <span class="kd">function</span> <span class="p">(</span><span class="nx">tagId</span><span class="p">)</span> <span class="p">{</span>
<span class="k">try</span> <span class="p">{</span></pre></div> </td> </tr> <tr id="section-22"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-22">¶</a> </div> <p>Try and find the tag in the current active list</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nx">mashTag</span> <span class="o">=</span> <span class="nx">nodeChatModel</span><span class="p">.</span><span class="nx">globalMashTags</span><span class="p">.</span><span class="nx">get</span><span class="p">(</span><span class="nx">tagId</span><span class="p">);</span></pre></div> </td> </tr> <tr id="section-23"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-23">¶</a> </div> <p>If not found, create it and add it to the global list</p> </td> <td class="code"> <div class="highlight"><pre> <span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="nx">mashTag</span><span class="p">)</span> <span class="p">{</span>
<span class="nx">winston</span><span class="p">.</span><span class="nx">warn</span><span class="p">(</span><span class="s1">'[getConnectedUser] tried to add invalid tag to user subscription'</span><span class="p">);</span>
<span class="k">return</span><span class="p">;</span>
<span class="p">}</span>
<span class="nx">mashTag</span><span class="p">.</span><span class="nx">watchingUsers</span><span class="p">.</span><span class="nx">add</span><span class="p">(</span><span class="nx">connectedUser</span><span class="p">);</span>
<span class="nx">sendMashTagsToUser</span><span class="p">(</span><span class="nx">connectedUser</span><span class="p">,</span> <span class="nx">mashTag</span><span class="p">);</span>
<span class="nx">connectedUser</span><span class="p">.</span><span class="nx">followedMashTags</span><span class="p">.</span><span class="nx">add</span><span class="p">(</span><span class="nx">mashTag</span><span class="p">);</span>
<span class="nx">winston</span><span class="p">.</span><span class="nx">info</span><span class="p">(</span><span class="s1">'[getConnectedUser] mashtag with id: '</span> <span class="o">+</span> <span class="nx">tagId</span> <span class="o">+</span> <span class="s1">' revived for user: '</span> <span class="o">+</span> <span class="nx">connectedUser</span><span class="p">.</span><span class="nx">get</span><span class="p">(</span><span class="s1">'name'</span><span class="p">));</span>
<span class="p">}</span>
<span class="k">catch</span> <span class="p">(</span><span class="nx">err</span><span class="p">)</span> <span class="p">{</span>
<span class="nx">winston</span><span class="p">.</span><span class="nx">warn</span><span class="p">(</span><span class="s1">'[getConnectedUser] Failed to revive mashtag with key '</span> <span class="o">+</span> <span class="nx">rKey</span> <span class="o">+</span> <span class="s1">' with id '</span> <span class="o">+</span> <span class="nx">tagId</span> <span class="o">+</span> <span class="s1">' with err '</span> <span class="o">+</span> <span class="nx">err</span><span class="p">);</span>
<span class="p">}</span>
<span class="p">});</span>
<span class="nx">winston</span><span class="p">.</span><span class="nx">info</span><span class="p">(</span><span class="s1">'[getConnectedUser] Revived '</span> <span class="o">+</span> <span class="nx">nodeChatModel</span><span class="p">.</span><span class="nx">chats</span><span class="p">.</span><span class="nx">length</span> <span class="o">+</span> <span class="s1">' chats'</span><span class="p">);</span>
<span class="p">}</span>
<span class="k">else</span> <span class="p">{</span>
<span class="nx">winston</span><span class="p">.</span><span class="nx">info</span><span class="p">(</span><span class="s1">'[getConnectedUser] No data returned for key: '</span> <span class="o">+</span> <span class="nx">rKey</span><span class="p">);</span>
<span class="p">}</span>
<span class="p">});</span></pre></div> </td> </tr> <tr id="section-24"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-24">¶</a> </div> <p>Count multiple connections in case someone has a window open</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nx">connectedUser</span><span class="p">.</span><span class="nx">currentConnections</span> <span class="o">=</span> <span class="mi">1</span><span class="p">;</span></pre></div> </td> </tr> <tr id="section-25"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-25">¶</a> </div> <p>Set disconnect here so we can destroy the user model</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nx">client</span><span class="p">.</span><span class="nx">on</span><span class="p">(</span><span class="s1">'disconnect'</span><span class="p">,</span> <span class="kd">function</span> <span class="p">()</span> <span class="p">{</span>
<span class="nx">clientDisconnect</span><span class="p">(</span><span class="nx">client</span><span class="p">,</span> <span class="kd">function</span> <span class="p">()</span> <span class="p">{</span>
<span class="k">if</span> <span class="p">(</span><span class="nx">connectedUser</span><span class="p">.</span><span class="nx">currentConnections</span> <span class="o">></span> <span class="mi">1</span><span class="p">)</span> <span class="p">{</span>
<span class="nx">connectedUser</span><span class="p">.</span><span class="nx">currentConnections</span><span class="o">--</span><span class="p">;</span>
<span class="p">}</span>
<span class="k">else</span> <span class="p">{</span>
<span class="nx">winston</span><span class="p">.</span><span class="nx">info</span><span class="p">(</span><span class="s1">'Removing user from active pool: '</span> <span class="o">+</span> <span class="nx">connectedUser</span><span class="p">.</span><span class="nx">get</span><span class="p">(</span><span class="s1">'name'</span><span class="p">));</span>
<span class="nx">connectedUser</span><span class="p">.</span><span class="nx">currentConnections</span> <span class="o">=</span> <span class="mi">0</span><span class="p">;</span>
<span class="nx">connectedUser</span><span class="p">.</span><span class="nx">followedMashTags</span><span class="p">.</span><span class="nx">forEach</span><span class="p">(</span><span class="kd">function</span> <span class="p">(</span><span class="nx">t</span><span class="p">)</span> <span class="p">{</span>
<span class="nx">winston</span><span class="p">.</span><span class="nx">info</span><span class="p">(</span><span class="s1">'Unsubscribping user: '</span> <span class="o">+</span> <span class="nx">connectedUser</span><span class="p">.</span><span class="nx">get</span><span class="p">(</span><span class="s1">'name'</span><span class="p">)</span> <span class="o">+</span> <span class="s1">' from mashtag: '</span> <span class="o">+</span> <span class="nx">t</span><span class="p">.</span><span class="nx">get</span><span class="p">(</span><span class="s1">'name'</span><span class="p">));</span>
<span class="nx">t</span><span class="p">.</span><span class="nx">watchingUsers</span><span class="p">.</span><span class="nx">remove</span><span class="p">(</span><span class="nx">connectedUser</span><span class="p">);</span>
<span class="p">});</span>
<span class="nx">sUser</span> <span class="o">=</span> <span class="k">new</span> <span class="nx">models</span><span class="p">.</span><span class="nx">User</span><span class="p">({</span><span class="nx">name</span><span class="o">:</span> <span class="nx">connectedUser</span><span class="p">.</span><span class="nx">get</span><span class="p">(</span><span class="s1">'name'</span><span class="p">)});</span>
<span class="nx">socket</span><span class="p">.</span><span class="nx">broadcast</span><span class="p">({</span>
<span class="nx">event</span><span class="o">:</span> <span class="s1">'user:remove'</span><span class="p">,</span>
<span class="nx">data</span><span class="o">:</span> <span class="nx">sUser</span><span class="p">.</span><span class="nx">xport</span><span class="p">({</span><span class="nx">recurse</span><span class="o">:</span> <span class="kc">false</span><span class="p">})</span>
<span class="p">});</span>
<span class="nx">nodeChatModel</span><span class="p">.</span><span class="nx">users</span><span class="p">.</span><span class="nx">remove</span><span class="p">(</span><span class="nx">connectedUser</span><span class="p">);</span>
<span class="p">}</span>
<span class="p">});</span>
<span class="p">});</span>
<span class="p">}</span> </pre></div> </td> </tr> <tr id="section-26"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-26">¶</a> </div> <p>Looks like the user has a new session for some reason. try and deal with this</p> </td> <td class="code"> <div class="highlight"><pre> <span class="k">else</span> <span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="nx">_</span><span class="p">.</span><span class="nx">any</span><span class="p">(</span><span class="nx">connectedUser</span><span class="p">.</span><span class="nx">clientList</span><span class="p">,</span> <span class="kd">function</span> <span class="p">(</span><span class="nx">c</span><span class="p">)</span> <span class="p">{</span>
<span class="k">return</span> <span class="nx">c</span> <span class="o">===</span> <span class="nx">client</span><span class="p">;</span>
<span class="p">}))</span> <span class="p">{</span>
<span class="nx">winston</span><span class="p">.</span><span class="nx">info</span><span class="p">(</span><span class="s1">'[getConnectedUser] existing user: '</span> <span class="o">+</span> <span class="nx">connectedUser</span><span class="p">.</span><span class="nx">get</span><span class="p">(</span><span class="s1">'name'</span><span class="p">)</span> <span class="o">+</span> <span class="s1">' on new client: '</span> <span class="o">+</span> <span class="nx">client</span><span class="p">.</span><span class="nx">sessionId</span><span class="p">);</span>
<span class="nx">connectedUser</span><span class="p">.</span><span class="nx">currentConnections</span><span class="o">++</span><span class="p">;</span>
<span class="nx">connectedUser</span><span class="p">.</span><span class="nx">clientList</span><span class="p">.</span><span class="nx">push</span><span class="p">(</span><span class="nx">client</span><span class="p">);</span></pre></div> </td> </tr> <tr id="section-27"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-27">¶</a> </div> <p>Set disconnect here so we can destroy the user model</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nx">client</span><span class="p">.</span><span class="nx">on</span><span class="p">(</span><span class="s1">'disconnect'</span><span class="p">,</span> <span class="kd">function</span> <span class="p">()</span> <span class="p">{</span>
<span class="nx">clientDisconnect</span><span class="p">(</span><span class="nx">client</span><span class="p">,</span> <span class="kd">function</span> <span class="p">()</span> <span class="p">{</span>
<span class="k">if</span> <span class="p">(</span><span class="nx">connectedUser</span><span class="p">.</span><span class="nx">currentConnections</span> <span class="o">></span> <span class="mi">1</span><span class="p">)</span> <span class="p">{</span>
<span class="nx">connectedUser</span><span class="p">.</span><span class="nx">currentConnections</span><span class="o">--</span><span class="p">;</span>
<span class="p">}</span>
<span class="k">else</span> <span class="p">{</span>
<span class="nx">winston</span><span class="p">.</span><span class="nx">info</span><span class="p">(</span><span class="s1">'Removing user from active pool: '</span> <span class="o">+</span> <span class="nx">connectedUser</span><span class="p">.</span><span class="nx">get</span><span class="p">(</span><span class="s1">'name'</span><span class="p">));</span>
<span class="nx">connectedUser</span><span class="p">.</span><span class="nx">currentConnections</span> <span class="o">=</span> <span class="mi">0</span><span class="p">;</span>
<span class="nx">sUser</span> <span class="o">=</span> <span class="k">new</span> <span class="nx">models</span><span class="p">.</span><span class="nx">User</span><span class="p">({</span><span class="nx">name</span><span class="o">:</span> <span class="nx">connectedUser</span><span class="p">.</span><span class="nx">get</span><span class="p">(</span><span class="s1">'name'</span><span class="p">)});</span>
<span class="nx">socket</span><span class="p">.</span><span class="nx">broadcast</span><span class="p">({</span>
<span class="nx">event</span><span class="o">:</span> <span class="s1">'user:remove'</span><span class="p">,</span>
<span class="nx">data</span><span class="o">:</span> <span class="nx">sUser</span><span class="p">.</span><span class="nx">xport</span><span class="p">({</span><span class="nx">recurse</span><span class="o">:</span> <span class="kc">false</span><span class="p">})</span>
<span class="p">});</span>
<span class="nx">nodeChatModel</span><span class="p">.</span><span class="nx">users</span><span class="p">.</span><span class="nx">remove</span><span class="p">(</span><span class="nx">connectedUser</span><span class="p">);</span>
<span class="p">}</span>
<span class="p">});</span>
<span class="p">});</span>
<span class="p">}</span>
<span class="k">return</span> <span class="nx">connectedUser</span><span class="p">;</span>
<span class="p">}</span>
<span class="kd">function</span> <span class="nx">getDirectsFromString</span><span class="p">(</span><span class="nx">chatText</span><span class="p">)</span> <span class="p">{</span>
<span class="kd">var</span> <span class="nx">directIndex</span><span class="p">,</span> <span class="nx">direct</span><span class="p">,</span> <span class="nx">endPos</span><span class="p">;</span>
<span class="k">if</span> <span class="p">(</span><span class="nx">chatText</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> <span class="o">===</span> <span class="s1">'@'</span><span class="p">)</span> <span class="p">{</span>
<span class="nx">directIndex</span> <span class="o">=</span> <span class="mi">0</span><span class="p">;</span>
<span class="p">}</span>
<span class="k">else</span> <span class="p">{</span>
<span class="nx">directIndex</span> <span class="o">=</span> <span class="nx">chatText</span><span class="p">.</span><span class="nx">indexOf</span><span class="p">(</span><span class="s1">' @'</span><span class="p">);</span>
<span class="p">}</span>
<span class="k">if</span> <span class="p">((</span><span class="nx">directIndex</span> <span class="o">></span> <span class="o">-</span><span class="mi">1</span><span class="p">)</span> <span class="o">&&</span> <span class="p">(</span><span class="nx">chatText</span><span class="p">[</span><span class="nx">directIndex</span> <span class="o">+</span> <span class="mi">2</span><span class="p">]</span> <span class="o">!==</span> <span class="s1">' '</span><span class="p">))</span> <span class="p">{</span>
<span class="nx">endPos</span> <span class="o">=</span> <span class="nx">chatText</span><span class="p">.</span><span class="nx">indexOf</span><span class="p">(</span><span class="s1">' '</span><span class="p">,</span> <span class="nx">directIndex</span> <span class="o">+</span> <span class="mi">1</span><span class="p">);</span>
<span class="nx">direct</span> <span class="o">=</span> <span class="nx">chatText</span><span class="p">.</span><span class="nx">substring</span><span class="p">(</span><span class="nx">directIndex</span> <span class="o">+</span> <span class="mi">1</span><span class="p">,</span> <span class="nx">endPos</span><span class="p">).</span><span class="nx">toLowerCase</span><span class="p">();</span>
<span class="nx">winston</span><span class="p">.</span><span class="nx">info</span><span class="p">(</span><span class="s1">'Found direct: '</span> <span class="o">+</span> <span class="nx">direct</span><span class="p">);</span>
<span class="p">}</span>
<span class="k">return</span> <span class="nx">direct</span><span class="p">;</span>
<span class="p">}</span>
<span class="kd">function</span> <span class="nx">handleDirects</span><span class="p">(</span><span class="nx">chat</span><span class="p">,</span> <span class="nx">originalUser</span><span class="p">)</span> <span class="p">{</span>
<span class="kd">var</span> <span class="nx">direct</span><span class="p">,</span> <span class="nx">foundUser</span><span class="p">;</span>
<span class="nx">direct</span> <span class="o">=</span> <span class="nx">getDirectsFromString</span><span class="p">(</span><span class="nx">chat</span><span class="p">.</span><span class="nx">get</span><span class="p">(</span><span class="s1">'text'</span><span class="p">));</span>
<span class="k">if</span> <span class="p">(</span><span class="nx">direct</span><span class="p">)</span> <span class="p">{</span>
<span class="nx">winston</span><span class="p">.</span><span class="nx">info</span><span class="p">(</span><span class="s1">'looking for direct targer user '</span> <span class="o">+</span> <span class="nx">direct</span><span class="p">);</span>
<span class="nx">foundUser</span> <span class="o">=</span> <span class="nx">nodeChatModel</span><span class="p">.</span><span class="nx">users</span><span class="p">.</span><span class="nx">find</span><span class="p">(</span><span class="kd">function</span> <span class="p">(</span><span class="nx">user</span><span class="p">)</span> <span class="p">{</span>
<span class="k">return</span> <span class="nx">user</span><span class="p">.</span><span class="nx">get</span><span class="p">(</span><span class="s1">'name'</span><span class="p">).</span><span class="nx">toLowerCase</span><span class="p">()</span> <span class="o">===</span> <span class="nx">direct</span><span class="p">;</span>
<span class="p">});</span>
<span class="nx">winston</span><span class="p">.</span><span class="nx">info</span><span class="p">(</span><span class="s1">'found user is '</span> <span class="o">+</span> <span class="nx">foundUser</span><span class="p">);</span>
<span class="k">if</span> <span class="p">(</span><span class="nx">foundUser</span><span class="p">)</span> <span class="p">{</span>
<span class="nx">winston</span><span class="p">.</span><span class="nx">info</span><span class="p">(</span><span class="s1">'Located direct targer user'</span> <span class="o">+</span> <span class="nx">foundUser</span><span class="p">.</span><span class="nx">get</span><span class="p">(</span><span class="s1">'name'</span><span class="p">));</span>
<span class="nx">foundUser</span><span class="p">.</span><span class="nx">directs</span><span class="p">.</span><span class="nx">add</span><span class="p">(</span><span class="nx">chat</span><span class="p">);</span>
<span class="nx">_</span><span class="p">.</span><span class="nx">each</span><span class="p">(</span><span class="nx">foundUser</span><span class="p">.</span><span class="nx">clientList</span><span class="p">,</span> <span class="kd">function</span> <span class="p">(</span><span class="nx">client</span><span class="p">)</span> <span class="p">{</span>
<span class="nx">client</span><span class="p">.</span><span class="nx">send</span><span class="p">({</span>
<span class="nx">event</span><span class="o">:</span> <span class="s1">'direct'</span><span class="p">,</span>
<span class="nx">data</span><span class="o">:</span> <span class="nx">chat</span><span class="p">.</span><span class="nx">xport</span><span class="p">()</span>
<span class="p">});</span>
<span class="p">});</span>
<span class="nx">rc</span><span class="p">.</span><span class="nx">rpush</span><span class="p">(</span><span class="s1">'user:'</span> <span class="o">+</span> <span class="nx">foundUser</span><span class="p">.</span><span class="nx">get</span><span class="p">(</span><span class="s1">'name'</span><span class="p">)</span> <span class="o">+</span> <span class="s1">'.directs'</span><span class="p">,</span> <span class="nx">chat</span><span class="p">.</span><span class="nx">xport</span><span class="p">({</span><span class="nx">recurse</span><span class="o">:</span> <span class="kc">false</span><span class="p">}),</span> <span class="nx">redis</span><span class="p">.</span><span class="nx">print</span><span class="p">);</span></pre></div> </td> </tr> <tr id="section-28"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-28">¶</a> </div> <p>Send back to the original user</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nx">_</span><span class="p">.</span><span class="nx">each</span><span class="p">(</span><span class="nx">originalUser</span><span class="p">.</span><span class="nx">clientList</span><span class="p">,</span> <span class="kd">function</span> <span class="p">(</span><span class="nx">client</span><span class="p">)</span> <span class="p">{</span>
<span class="nx">client</span><span class="p">.</span><span class="nx">send</span><span class="p">({</span>
<span class="nx">event</span><span class="o">:</span> <span class="s1">'direct'</span><span class="p">,</span>
<span class="nx">data</span><span class="o">:</span> <span class="nx">chat</span><span class="p">.</span><span class="nx">xport</span><span class="p">()</span>
<span class="p">});</span>
<span class="p">});</span>
<span class="p">}</span>
<span class="p">}</span>
<span class="k">else</span> <span class="p">{</span>
<span class="k">return</span> <span class="kc">true</span><span class="p">;</span>
<span class="p">}</span>
<span class="p">}</span></pre></div> </td> </tr> <tr id="section-29"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-29">¶</a> </div> <p>Helper function to remove tag subscription for a user</p> </td> <td class="code"> <div class="highlight"><pre><span class="kd">function</span> <span class="nx">deleteMashtagForUser</span><span class="p">(</span><span class="nx">user</span><span class="p">,</span> <span class="nx">mashTag</span><span class="p">)</span> <span class="p">{</span>
<span class="kd">var</span> <span class="nx">rKey</span> <span class="o">=</span> <span class="s1">'user:'</span> <span class="o">+</span> <span class="nx">user</span><span class="p">.</span><span class="nx">get</span><span class="p">(</span><span class="s1">'name'</span><span class="p">)</span> <span class="o">+</span> <span class="s1">'.mashtags'</span><span class="p">;</span>
<span class="nx">rc</span><span class="p">.</span><span class="nx">srem</span><span class="p">(</span><span class="nx">rKey</span><span class="p">,</span> <span class="nx">mashTag</span><span class="p">.</span><span class="nx">id</span><span class="p">,</span> <span class="kd">function</span> <span class="p">(</span><span class="nx">err</span><span class="p">,</span> <span class="nx">data</span><span class="p">)</span> <span class="p">{</span>
<span class="k">if</span> <span class="p">(</span><span class="nx">err</span><span class="p">)</span> <span class="p">{</span>
<span class="nx">winston</span><span class="p">.</span><span class="nx">warn</span><span class="p">(</span><span class="s1">'SREM failed for key: '</span> <span class="o">+</span> <span class="nx">rKey</span> <span class="o">+</span> <span class="s1">' and value: '</span> <span class="o">+</span> <span class="nx">mashTag</span><span class="p">.</span><span class="nx">id</span><span class="p">);</span>
<span class="p">}</span>
<span class="k">else</span> <span class="k">if</span> <span class="p">(</span><span class="nx">data</span> <span class="o">===</span> <span class="s1">'1'</span><span class="p">)</span> <span class="p">{</span>
<span class="nx">winston</span><span class="p">.</span><span class="nx">info</span><span class="p">(</span><span class="s1">'SREM succeeded for key: '</span> <span class="o">+</span> <span class="nx">rKey</span> <span class="o">+</span> <span class="s1">' and value: '</span> <span class="o">+</span> <span class="nx">mashTag</span><span class="p">.</span><span class="nx">id</span><span class="p">);</span>
<span class="p">}</span>
<span class="k">else</span> <span class="p">{</span>
<span class="nx">winston</span><span class="p">.</span><span class="nx">info</span><span class="p">(</span><span class="s1">'SREM could not find value for key: '</span> <span class="o">+</span> <span class="nx">rKey</span> <span class="o">+</span> <span class="s1">' and value: '</span> <span class="o">+</span> <span class="nx">mashTag</span><span class="p">.</span><span class="nx">id</span><span class="p">);</span>
<span class="p">}</span>
<span class="p">});</span>
<span class="p">}</span></pre></div> </td> </tr> <tr id="section-30"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-30">¶</a> </div> <p>Look for unsubscription notifications</p> </td> <td class="code"> <div class="highlight"><pre><span class="kd">function</span> <span class="nx">checkForMashTagUnSub</span><span class="p">(</span><span class="nx">chat</span><span class="p">,</span> <span class="nx">user</span><span class="p">)</span> <span class="p">{</span>
<span class="kd">var</span> <span class="nx">mashTagsToRemove</span><span class="p">,</span> <span class="nx">foundTag</span><span class="p">,</span> <span class="nx">t</span><span class="p">,</span> <span class="nx">makeTagFindHandler</span><span class="p">,</span> <span class="nx">makeClientUnSubNotifyHandler</span><span class="p">;</span>
<span class="nx">makeTagFindHandler</span> <span class="o">=</span> <span class="kd">function</span> <span class="p">(</span><span class="nx">tagName</span><span class="p">)</span> <span class="p">{</span>
<span class="k">return</span> <span class="kd">function</span> <span class="p">(</span><span class="nx">tag</span><span class="p">)</span> <span class="p">{</span>
<span class="k">return</span> <span class="nx">tag</span><span class="p">.</span><span class="nx">get</span><span class="p">(</span><span class="s1">'name'</span><span class="p">)</span> <span class="o">===</span> <span class="nx">tagName</span><span class="p">;</span>
<span class="p">};</span>
<span class="p">};</span>
<span class="nx">makeClientUnSubNotifyHandler</span> <span class="o">=</span> <span class="kd">function</span> <span class="p">(</span><span class="nx">tag</span><span class="p">)</span> <span class="p">{</span>
<span class="k">return</span> <span class="kd">function</span> <span class="p">(</span><span class="nx">client</span><span class="p">)</span> <span class="p">{</span>
<span class="nx">winston</span><span class="p">.</span><span class="nx">info</span><span class="p">(</span><span class="s1">'notified client '</span> <span class="o">+</span> <span class="nx">client</span><span class="p">.</span><span class="nx">sessionId</span><span class="p">);</span>
<span class="nx">client</span><span class="p">.</span><span class="nx">send</span><span class="p">({</span>
<span class="nx">event</span><span class="o">:</span> <span class="s1">'mashtag:delete'</span><span class="p">,</span>
<span class="nx">data</span><span class="o">:</span> <span class="nx">tag</span><span class="p">.</span><span class="nx">xport</span><span class="p">({</span><span class="nx">recurse</span><span class="o">:</span> <span class="kc">false</span><span class="p">})</span>
<span class="p">});</span>
<span class="p">};</span>
<span class="p">};</span>
<span class="nx">mashTagsToRemove</span> <span class="o">=</span> <span class="nx">mashlib</span><span class="p">.</span><span class="nx">getChunksFromString</span><span class="p">(</span><span class="nx">chat</span><span class="p">.</span><span class="nx">get</span><span class="p">(</span><span class="s1">'text'</span><span class="p">),</span> <span class="s1">'-'</span><span class="p">);</span>
<span class="k">if</span> <span class="p">(</span><span class="nx">mashTagsToRemove</span><span class="p">.</span><span class="nx">length</span> <span class="o">></span> <span class="mi">0</span><span class="p">)</span> <span class="p">{</span></pre></div> </td> </tr> <tr id="section-31"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-31">¶</a> </div> <p>TODO remove for loop</p> </td> <td class="code"> <div class="highlight"><pre> <span class="k">for</span> <span class="p">(</span><span class="nx">t</span> <span class="k">in</span> <span class="nx">mashTagsToRemove</span><span class="p">)</span> <span class="p">{</span>
<span class="nx">foundTag</span> <span class="o">=</span> <span class="nx">nodeChatModel</span><span class="p">.</span><span class="nx">globalMashTags</span><span class="p">.</span><span class="nx">find</span><span class="p">(</span><span class="nx">makeTagFindHandler</span><span class="p">(</span><span class="nx">mashTagsToRemove</span><span class="p">[</span><span class="nx">t</span><span class="p">]));</span></pre></div> </td> </tr> <tr id="section-32"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-32">¶</a> </div> <p>Try and remove it from redis whether we found it or not, in case of sync issues</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nx">deleteMashtagForUser</span><span class="p">(</span><span class="nx">user</span><span class="p">,</span> <span class="nx">mashTagsToRemove</span><span class="p">[</span><span class="nx">t</span><span class="p">]);</span>
<span class="k">if</span> <span class="p">(</span><span class="nx">foundTag</span><span class="p">)</span> <span class="p">{</span>
<span class="nx">foundTag</span><span class="p">.</span><span class="nx">watchingUsers</span><span class="p">.</span><span class="nx">remove</span><span class="p">(</span><span class="nx">user</span><span class="p">);</span></pre></div> </td> </tr> <tr id="section-33"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-33">¶</a> </div> <p>Notify client that tag was unsub'd</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nx">_</span><span class="p">.</span><span class="nx">each</span><span class="p">(</span><span class="nx">user</span><span class="p">.</span><span class="nx">clientList</span><span class="p">,</span> <span class="nx">makeClientUnSubNotifyHandler</span><span class="p">(</span><span class="nx">foundTag</span><span class="p">));</span>
<span class="p">}</span>
<span class="p">}</span>
<span class="k">return</span> <span class="kc">false</span><span class="p">;</span>
<span class="p">}</span>
<span class="k">return</span> <span class="kc">true</span><span class="p">;</span>
<span class="p">}</span>
<span class="kd">var</span> <span class="nx">topPoster</span> <span class="o">=</span> <span class="p">{};</span>
<span class="nx">topPoster</span><span class="p">.</span><span class="nx">name</span> <span class="o">=</span> <span class="s1">'noone'</span><span class="p">;</span>
<span class="nx">topPoster</span><span class="p">.</span><span class="nx">count</span> <span class="o">=</span> <span class="mi">0</span><span class="p">;</span>
<span class="nx">topPoster</span><span class="p">.</span><span class="nx">lettercount</span> <span class="o">=</span> <span class="mi">0</span><span class="p">;</span></pre></div> </td> </tr> <tr id="section-34"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-34">¶</a> </div> <p>Event handler for new chat messages. Stores the chat in redis and broadcasts it to all connected clients.</p>
<ul>
<li>@param {object} client</li>
<li>@param {object} socket</li>
<li>@param {json string} msg</li>
</ul> </td> <td class="code"> <div class="highlight"><pre><span class="kd">function</span> <span class="nx">message</span><span class="p">(</span><span class="nx">client</span><span class="p">,</span> <span class="nx">socket</span><span class="p">,</span> <span class="nx">msg</span><span class="p">)</span> <span class="p">{</span>
<span class="k">if</span> <span class="p">(</span><span class="nx">msg</span><span class="p">.</span><span class="nx">rediskey</span><span class="p">)</span> <span class="p">{</span>
<span class="nx">winston</span><span class="p">.</span><span class="nx">info</span><span class="p">(</span><span class="s1">'received from client: '</span> <span class="o">+</span> <span class="nx">msg</span><span class="p">.</span><span class="nx">rediskey</span><span class="p">);</span>
<span class="p">}</span>
<span class="k">if</span> <span class="p">(</span><span class="nx">msg</span><span class="p">.</span><span class="nx">event</span> <span class="o">===</span> <span class="s1">'clientauthrequest'</span><span class="p">)</span> <span class="p">{</span>
<span class="nx">winston</span><span class="p">.</span><span class="nx">info</span><span class="p">(</span><span class="s1">'clientauthrequest received with hash '</span> <span class="o">+</span> <span class="nx">msg</span><span class="p">.</span><span class="nx">data</span><span class="p">);</span>
<span class="p">}</span>
<span class="k">else</span> <span class="p">{</span>
<span class="kd">var</span> <span class="nx">chat</span> <span class="o">=</span> <span class="k">new</span> <span class="nx">models</span><span class="p">.</span><span class="nx">ChatEntry</span><span class="p">();</span>
<span class="nx">chat</span><span class="p">.</span><span class="nx">mport</span><span class="p">(</span><span class="nx">msg</span><span class="p">);</span>
<span class="nx">client</span><span class="p">.</span><span class="nx">connectSession</span><span class="p">(</span><span class="kd">function</span> <span class="p">(</span><span class="nx">err</span><span class="p">,</span> <span class="nx">data</span><span class="p">)</span> <span class="p">{</span>
<span class="kd">var</span> <span class="nx">cleanChat</span><span class="p">,</span> <span class="nx">connectedUser</span><span class="p">,</span> <span class="nx">userName</span><span class="p">;</span>
<span class="k">if</span> <span class="p">(</span><span class="nx">err</span><span class="p">)</span> <span class="p">{</span>
<span class="nx">disconnectAndRedirectClient</span><span class="p">(</span><span class="nx">client</span><span class="p">,</span> <span class="kd">function</span> <span class="p">()</span> <span class="p">{</span>
<span class="nx">winston</span><span class="p">.</span><span class="nx">warn</span><span class="p">(</span><span class="s1">'[message] Error on connectSession: '</span> <span class="o">+</span> <span class="nx">err</span><span class="p">);</span>
<span class="p">});</span>
<span class="k">return</span><span class="p">;</span>
<span class="p">}</span>
<span class="nx">connectedUser</span> <span class="o">=</span> <span class="nx">getConnectedUser</span><span class="p">(</span><span class="nx">data</span><span class="p">,</span> <span class="nx">client</span><span class="p">);</span>
<span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="nx">connectedUser</span><span class="p">)</span> <span class="p">{</span>
<span class="nx">disconnectAndRedirectClient</span><span class="p">(</span><span class="nx">client</span><span class="p">,</span> <span class="kd">function</span> <span class="p">()</span> <span class="p">{</span>
<span class="nx">winston</span><span class="p">.</span><span class="nx">warn</span><span class="p">(</span><span class="s1">'[message] connectedUser is null or empty'</span><span class="p">);</span>
<span class="p">});</span>
<span class="k">return</span><span class="p">;</span>
<span class="p">}</span>
<span class="nx">cleanChat</span> <span class="o">=</span> <span class="nx">chat</span><span class="p">.</span><span class="nx">get</span><span class="p">(</span><span class="s1">'text'</span><span class="p">)</span> <span class="o">+</span> <span class="s1">' '</span><span class="p">;</span>
<span class="k">if</span> <span class="p">(</span><span class="nx">cleanChat</span><span class="p">)</span> <span class="p">{</span>
<span class="nx">cleanChat</span> <span class="o">=</span> <span class="nx">cleanChat</span><span class="p">.</span><span class="nx">replace</span><span class="p">(</span><span class="sr">/</g</span><span class="p">,</span> <span class="s2">"&lt;"</span><span class="p">).</span><span class="nx">replace</span><span class="p">(</span><span class="sr">/>/g</span><span class="p">,</span> <span class="s2">"&gt;"</span><span class="p">);</span>
<span class="p">}</span>
<span class="nx">userName</span> <span class="o">=</span> <span class="nx">connectedUser</span><span class="p">.</span><span class="nx">get</span><span class="p">(</span><span class="s1">'name'</span><span class="p">);</span>
<span class="nx">chat</span><span class="p">.</span><span class="nx">set</span><span class="p">({</span><span class="s1">'name'</span><span class="o">:</span> <span class="nx">userName</span><span class="p">,</span> <span class="s1">'text'</span><span class="o">:</span> <span class="nx">cleanChat</span><span class="p">});</span>
<span class="nx">rc</span><span class="p">.</span><span class="nx">get</span><span class="p">(</span><span class="s1">'userban:'</span> <span class="o">+</span> <span class="nx">userName</span><span class="p">,</span> <span class="kd">function</span> <span class="p">(</span><span class="nx">err</span><span class="p">,</span> <span class="nx">udata</span><span class="p">)</span> <span class="p">{</span>
<span class="k">if</span> <span class="p">(</span><span class="nx">err</span><span class="p">)</span> <span class="p">{</span>
<span class="nx">winston</span><span class="p">.</span><span class="nx">warn</span><span class="p">(</span><span class="s1">'Error: '</span> <span class="o">+</span> <span class="nx">err</span><span class="p">);</span>
<span class="p">}</span>
<span class="k">else</span> <span class="k">if</span> <span class="p">(</span><span class="nx">udata</span> <span class="o">===</span> <span class="mi">1</span><span class="p">)</span>
<span class="p">{</span>
<span class="nx">winston</span><span class="p">.</span><span class="nx">warn</span><span class="p">(</span><span class="s1">'Banned: '</span> <span class="o">+</span> <span class="nx">udata</span><span class="p">);</span>
<span class="k">return</span><span class="p">;</span>
<span class="p">}</span>
<span class="k">else</span> <span class="p">{</span>
<span class="k">if</span> <span class="p">(</span><span class="nx">topPoster</span><span class="p">.</span><span class="nx">name</span> <span class="o">===</span> <span class="nx">userName</span> <span class="o">&&</span> <span class="nx">userName</span> <span class="o">!==</span> <span class="s1">'jslatts'</span><span class="p">)</span> <span class="p">{</span>
<span class="k">if</span> <span class="p">(</span><span class="nx">topPoster</span><span class="p">.</span><span class="nx">count</span> <span class="o">></span> <span class="mi">5</span> <span class="o">||</span> <span class="nx">topPoster</span><span class="p">.</span><span class="nx">lettercount</span> <span class="o">></span> <span class="mi">700</span><span class="p">)</span> <span class="p">{</span>
<span class="k">return</span><span class="p">;</span>
<span class="p">}</span>
<span class="k">else</span> <span class="p">{</span></pre></div> </td> </tr> <tr id="section-35"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-35">¶</a> </div> <p>set a timer to reset this</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nx">clearTimeout</span><span class="p">(</span><span class="nx">topPoster</span><span class="p">.</span><span class="nx">timeOut</span><span class="p">);</span>
<span class="nx">topPoster</span><span class="p">.</span><span class="nx">timeOut</span> <span class="o">=</span> <span class="nx">setTimeout</span><span class="p">(</span><span class="kd">function</span> <span class="p">()</span> <span class="p">{</span>
<span class="nx">topPoster</span><span class="p">.</span><span class="nx">count</span> <span class="o">=</span> <span class="mi">0</span><span class="p">;</span>
<span class="p">},</span> <span class="mi">5000</span><span class="p">);</span>
<span class="nx">topPoster</span><span class="p">.</span><span class="nx">count</span><span class="o">++</span><span class="p">;</span>
<span class="nx">topPoster</span><span class="p">.</span><span class="nx">lettercount</span> <span class="o">+=</span> <span class="nx">cleanChat</span><span class="p">.</span><span class="nx">length</span><span class="p">;</span>
<span class="p">}</span>
<span class="p">}</span>
<span class="k">else</span> <span class="p">{</span>
<span class="nx">topPoster</span><span class="p">.</span><span class="nx">name</span> <span class="o">=</span> <span class="nx">userName</span><span class="p">;</span>
<span class="nx">topPoster</span><span class="p">.</span><span class="nx">count</span> <span class="o">=</span> <span class="mi">1</span><span class="p">;</span>
<span class="nx">topPoster</span><span class="p">.</span><span class="nx">lettercount</span> <span class="o">=</span> <span class="mi">1</span><span class="p">;</span>
<span class="p">}</span>
<span class="k">if</span> <span class="p">(</span><span class="nx">chat</span><span class="p">.</span><span class="nx">get</span><span class="p">(</span><span class="s1">'text'</span><span class="p">).</span><span class="nx">length</span> <span class="o">></span> <span class="mi">400</span><span class="p">)</span> <span class="p">{</span>
<span class="k">return</span><span class="p">;</span>
<span class="p">}</span>
<span class="nx">rc</span><span class="p">.</span><span class="nx">incr</span><span class="p">(</span><span class="s1">'next.chatentry.id'</span><span class="p">,</span> <span class="kd">function</span> <span class="p">(</span><span class="nx">err</span><span class="p">,</span> <span class="nx">newId</span><span class="p">)</span> <span class="p">{</span>
<span class="nx">chat</span><span class="p">.</span><span class="nx">set</span><span class="p">({</span><span class="nx">id</span><span class="o">:</span> <span class="nx">newId</span><span class="p">,</span> <span class="nx">time</span><span class="o">:</span> <span class="nx">ncutils</span><span class="p">.</span><span class="nx">getClockTime</span><span class="p">(),</span> <span class="nx">datetime</span><span class="o">:</span> <span class="k">new</span> <span class="nb">Date</span><span class="p">().</span><span class="nx">getTime</span><span class="p">()});</span>
<span class="nx">winston</span><span class="p">.</span><span class="nx">info</span><span class="p">(</span><span class="nx">chat</span><span class="p">.</span><span class="nx">xport</span><span class="p">());</span></pre></div> </td> </tr> <tr id="section-36"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-36">¶</a> </div> <p>If we have hashes, deal with them</p> </td> <td class="code"> <div class="highlight"><pre> <span class="kd">var</span> <span class="nx">shouldBroadcast</span> <span class="o">=</span> <span class="nx">handleDirects</span><span class="p">(</span><span class="nx">chat</span><span class="p">,</span> <span class="nx">connectedUser</span><span class="p">);</span>
<span class="nx">shouldBroadcast</span> <span class="o">=</span> <span class="nx">shouldBroadcast</span> <span class="o">&&</span> <span class="nx">checkForMashTagUnSub</span><span class="p">(</span><span class="nx">chat</span><span class="p">,</span> <span class="nx">connectedUser</span><span class="p">);</span>
<span class="k">if</span> <span class="p">(</span><span class="nx">shouldBroadcast</span><span class="p">)</span>
<span class="nx">shouldBroadcast</span> <span class="o">=</span> <span class="nx">shouldBroadcast</span> <span class="o">&&</span> <span class="nx">handleMashTags</span><span class="p">(</span><span class="nx">chat</span><span class="p">,</span> <span class="nx">connectedUser</span><span class="p">);</span>
<span class="k">if</span> <span class="p">(</span><span class="nx">shouldBroadcast</span><span class="p">)</span>
<span class="nx">broadcastChat</span><span class="p">(</span><span class="nx">chat</span><span class="p">,</span><span class="nx">client</span><span class="p">);</span>
<span class="p">});</span>
<span class="p">}</span>
<span class="p">});</span>
<span class="p">});</span>
<span class="p">}</span>
<span class="p">}</span></pre></div> </td> </tr> <tr id="section-37"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-37">¶</a> </div> <p>Handle the new connection event for socket. </p>
<p>connectSession() is a helper method that will verify a client's validity by checking for a cookie in the request header, then, if we find it, <em>pulling their session out of redis</em>. </p>
<p>We then use the helper method in the 'connection' handler for our socket listener. Instead accepting any user connection, we are going to check that the client has a valid session (meaning they logged in). If they don't, give them the boot! If they do, then we store a copy of the session data (yay we have access!) in the client object and then setup the rest of the socket events. Finally, send them a welcome message just to prove that we remembered their profile. </p> </td> <td class="code"> <div class="highlight"><pre><span class="nx">socket</span><span class="p">.</span><span class="nx">on</span><span class="p">(</span><span class="s1">'connection'</span><span class="p">,</span> <span class="kd">function</span> <span class="p">(</span><span class="nx">client</span><span class="p">)</span> <span class="p">{</span></pre></div> </td> </tr> <tr id="section-38"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-38">¶</a> </div> <p>helper function that goes inside your socket connection</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nx">client</span><span class="p">.</span><span class="nx">connectSession</span> <span class="o">=</span> <span class="kd">function</span> <span class="p">(</span><span class="nx">fn</span><span class="p">)</span> <span class="p">{</span>
<span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="nx">client</span><span class="p">.</span><span class="nx">request</span> <span class="o">||</span> <span class="o">!</span><span class="nx">client</span><span class="p">.</span><span class="nx">request</span><span class="p">.</span><span class="nx">headers</span> <span class="o">||</span> <span class="o">!</span><span class="nx">client</span><span class="p">.</span><span class="nx">request</span><span class="p">.</span><span class="nx">headers</span><span class="p">.</span><span class="nx">cookie</span><span class="p">)</span> <span class="p">{</span>
<span class="nx">disconnectAndRedirectClient</span><span class="p">(</span><span class="nx">client</span><span class="p">,</span> <span class="kd">function</span> <span class="p">()</span> <span class="p">{</span>
<span class="nx">winston</span><span class="p">.</span><span class="nx">warn</span><span class="p">(</span><span class="s1">'Null request/header/cookie!'</span><span class="p">);</span>
<span class="p">});</span>
<span class="k">return</span><span class="p">;</span>
<span class="p">}</span>
<span class="nx">winston</span><span class="p">.</span><span class="nx">info</span><span class="p">(</span><span class="s1">'Cookie is'</span> <span class="o">+</span> <span class="nx">client</span><span class="p">.</span><span class="nx">request</span><span class="p">.</span><span class="nx">headers</span><span class="p">.</span><span class="nx">cookie</span><span class="p">);</span>
<span class="kd">var</span> <span class="nx">match</span><span class="p">,</span> <span class="nx">sid</span><span class="p">;</span>
<span class="nx">match</span> <span class="o">=</span> <span class="nx">client</span><span class="p">.</span><span class="nx">request</span><span class="p">.</span><span class="nx">headers</span><span class="p">.</span><span class="nx">cookie</span><span class="p">.</span><span class="nx">match</span><span class="p">(</span><span class="sr">/connect\.sid=([^;]+)/</span><span class="p">);</span>
<span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="nx">match</span> <span class="o">||</span> <span class="nx">match</span><span class="p">.</span><span class="nx">length</span> <span class="o"><</span> <span class="mi">2</span><span class="p">)</span> <span class="p">{</span>
<span class="nx">disconnectAndRedirectClient</span><span class="p">(</span><span class="nx">client</span><span class="p">,</span> <span class="kd">function</span> <span class="p">()</span> <span class="p">{</span>
<span class="nx">winston</span><span class="p">.</span><span class="nx">warn</span><span class="p">(</span><span class="s1">'Failed to find connect.sid in cookie'</span><span class="p">);</span>
<span class="p">});</span>
<span class="k">return</span><span class="p">;</span>
<span class="p">}</span>
<span class="nx">sid</span> <span class="o">=</span> <span class="nx">unescape</span><span class="p">(</span><span class="nx">match</span><span class="p">[</span><span class="mi">1</span><span class="p">]);</span>
<span class="nx">rc</span><span class="p">.</span><span class="nx">get</span><span class="p">(</span><span class="nx">sid</span><span class="p">,</span> <span class="kd">function</span> <span class="p">(</span><span class="nx">err</span><span class="p">,</span> <span class="nx">data</span><span class="p">)</span> <span class="p">{</span>
<span class="nx">fn</span><span class="p">(</span><span class="nx">err</span><span class="p">,</span> <span class="nx">JSON</span><span class="p">.</span><span class="nx">parse</span><span class="p">(</span><span class="nx">data</span><span class="p">));</span>
<span class="p">});</span>
<span class="p">};</span>
<span class="nx">client</span><span class="p">.</span><span class="nx">connectSession</span><span class="p">(</span><span class="kd">function</span> <span class="p">(</span><span class="nx">err</span><span class="p">,</span> <span class="nx">data</span><span class="p">)</span> <span class="p">{</span>
<span class="k">if</span> <span class="p">(</span><span class="nx">err</span><span class="p">)</span> <span class="p">{</span>
<span class="nx">winston</span><span class="p">.</span><span class="nx">warn</span><span class="p">(</span><span class="s1">'Error on connectionSession: '</span> <span class="o">+</span> <span class="nx">err</span><span class="p">);</span>
<span class="k">return</span><span class="p">;</span>
<span class="p">}</span>
<span class="kd">var</span> <span class="nx">connectedUser</span> <span class="o">=</span> <span class="nx">getConnectedUser</span><span class="p">(</span><span class="nx">data</span><span class="p">,</span> <span class="nx">client</span><span class="p">);</span>
<span class="k">if</span> <span class="p">(</span><span class="nx">connectedUser</span><span class="p">)</span> <span class="p">{</span>
<span class="nx">client</span><span class="p">.</span><span class="nx">on</span><span class="p">(</span><span class="s1">'message'</span><span class="p">,</span> <span class="kd">function</span> <span class="p">(</span><span class="nx">msg</span><span class="p">)</span> <span class="p">{</span>
<span class="nx">message</span><span class="p">(</span><span class="nx">client</span><span class="p">,</span> <span class="nx">socket</span><span class="p">,</span> <span class="nx">msg</span><span class="p">);</span>
<span class="p">});</span>
<span class="nx">sendInitialDataToClient</span><span class="p">(</span><span class="nx">client</span><span class="p">);</span>
<span class="p">}</span>
<span class="k">else</span> <span class="p">{</span>
<span class="nx">winston</span><span class="p">.</span><span class="nx">warn</span><span class="p">(</span><span class="s2">"Failed to connect user"</span><span class="p">);</span>
<span class="p">}</span>
<span class="p">});</span>
<span class="p">});</span>
<span class="kd">function</span> <span class="nx">sendInitialDataToClient</span><span class="p">(</span><span class="nx">client</span><span class="p">)</span> <span class="p">{</span>
<span class="kd">var</span> <span class="nx">chatHistory</span><span class="p">;</span>
<span class="k">if</span> <span class="p">(</span><span class="nx">nodeChatModel</span><span class="p">.</span><span class="nx">chats</span><span class="p">.</span><span class="nx">length</span> <span class="o">></span> <span class="mi">100</span><span class="p">)</span> <span class="p">{</span>
<span class="nx">chatHistory</span> <span class="o">=</span> <span class="nx">nodeChatModel</span><span class="p">.</span><span class="nx">chats</span><span class="p">.</span><span class="nx">rest</span><span class="p">(</span><span class="nx">nodeChatModel</span><span class="p">.</span><span class="nx">chats</span><span class="p">.</span><span class="nx">length</span> <span class="o">-</span> <span class="mi">100</span><span class="p">);</span>
<span class="p">}</span>
<span class="k">else</span> <span class="p">{</span>
<span class="nx">chatHistory</span> <span class="o">=</span> <span class="nx">nodeChatModel</span><span class="p">.</span><span class="nx">chats</span><span class="p">;</span>
<span class="p">}</span>
<span class="nx">winston</span><span class="p">.</span><span class="nx">info</span><span class="p">(</span><span class="s1">'sending '</span> <span class="o">+</span> <span class="nx">chatHistory</span><span class="p">.</span><span class="nx">length</span><span class="p">);</span>
<span class="nx">nodeChatModel</span><span class="p">.</span><span class="nx">users</span><span class="p">.</span><span class="nx">forEach</span><span class="p">(</span><span class="kd">function</span> <span class="p">(</span><span class="nx">user</span><span class="p">)</span> <span class="p">{</span>
<span class="kd">var</span> <span class="nx">sUser</span> <span class="o">=</span> <span class="k">new</span> <span class="nx">models</span><span class="p">.</span><span class="nx">User</span><span class="p">({</span><span class="nx">name</span><span class="o">:</span> <span class="nx">user</span><span class="p">.</span><span class="nx">get</span><span class="p">(</span><span class="s1">'name'</span><span class="p">)});</span>
<span class="nx">client</span><span class="p">.</span><span class="nx">send</span><span class="p">({</span>
<span class="nx">event</span><span class="o">:</span> <span class="s1">'user:add'</span><span class="p">,</span>
<span class="nx">data</span><span class="o">:</span> <span class="nx">sUser</span><span class="p">.</span><span class="nx">xport</span><span class="p">()</span>
<span class="p">});</span>
<span class="p">});</span>
<span class="nx">chatHistory</span><span class="p">.</span><span class="nx">forEach</span><span class="p">(</span><span class="kd">function</span> <span class="p">(</span><span class="nx">chat</span><span class="p">)</span> <span class="p">{</span>
<span class="nx">client</span><span class="p">.</span><span class="nx">send</span><span class="p">({</span>
<span class="nx">event</span><span class="o">:</span> <span class="s1">'chat'</span><span class="p">,</span>
<span class="nx">data</span><span class="o">:</span> <span class="nx">chat</span><span class="p">.</span><span class="nx">xport</span><span class="p">()</span>
<span class="p">});</span>
<span class="p">});</span>
<span class="nx">nodeChatModel</span><span class="p">.</span><span class="nx">globalMashTags</span><span class="p">.</span><span class="nx">forEach</span><span class="p">(</span><span class="kd">function</span> <span class="p">(</span><span class="nx">mashTag</span><span class="p">)</span> <span class="p">{</span>
<span class="nx">client</span><span class="p">.</span><span class="nx">send</span><span class="p">({</span>
<span class="nx">event</span><span class="o">:</span> <span class="s1">'globalmashtag'</span><span class="p">,</span>
<span class="nx">data</span><span class="o">:</span> <span class="nx">mashTag</span><span class="p">.</span><span class="nx">xport</span><span class="p">({</span><span class="nx">recurse</span><span class="o">:</span> <span class="kc">false</span><span class="p">})</span>
<span class="p">});</span>
<span class="p">});</span>
<span class="p">}</span>
<span class="kd">var</span> <span class="nx">broadcastChat</span> <span class="o">=</span> <span class="kd">function</span> <span class="p">(</span><span class="nx">chat</span><span class="p">,</span> <span class="nx">client</span><span class="p">)</span> <span class="p">{</span>
<span class="nx">nodeChatModel</span><span class="p">.</span><span class="nx">chats</span><span class="p">.</span><span class="nx">add</span><span class="p">(</span><span class="nx">chat</span><span class="p">);</span>
<span class="nx">winston</span><span class="p">.</span><span class="nx">info</span><span class="p">(</span><span class="s1">'['</span> <span class="o">+</span> <span class="nx">client</span><span class="p">.</span><span class="nx">sessionId</span> <span class="o">+</span> <span class="s1">'] '</span> <span class="o">+</span> <span class="nx">chat</span><span class="p">.</span><span class="nx">xport</span><span class="p">());</span>
<span class="nx">rc</span><span class="p">.</span><span class="nx">rpush</span><span class="p">(</span><span class="s1">'chatentries'</span><span class="p">,</span> <span class="nx">chat</span><span class="p">.</span><span class="nx">xport</span><span class="p">({</span><span class="nx">recurse</span><span class="o">:</span> <span class="kc">false</span><span class="p">}),</span> <span class="nx">redis</span><span class="p">.</span><span class="nx">print</span><span class="p">);</span>
<span class="nx">socket</span><span class="p">.</span><span class="nx">broadcast</span><span class="p">({</span>
<span class="nx">event</span><span class="o">:</span> <span class="s1">'chat'</span><span class="p">,</span>
<span class="nx">data</span><span class="o">:</span><span class="nx">chat</span><span class="p">.</span><span class="nx">xport</span><span class="p">()</span>
<span class="p">});</span>
<span class="p">}</span></pre></div> </td> </tr> <tr id="section-39"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-39">¶</a> </div> <p>Handles MashTag creation and notification
TODO - refactor to use CPS</p> </td> <td class="code"> <div class="highlight"><pre><span class="kd">function</span> <span class="nx">handleMashTags</span><span class="p">(</span><span class="nx">chat</span><span class="p">,</span> <span class="nx">user</span><span class="p">)</span> <span class="p">{</span>
<span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="nx">user</span><span class="p">)</span> <span class="p">{</span>
<span class="nx">winston</span><span class="p">.</span><span class="nx">warn</span><span class="p">(</span><span class="s1">'[handleMashTags] user is null'</span><span class="p">);</span>
<span class="k">return</span><span class="p">;</span>
<span class="p">}</span>
<span class="kd">var</span> <span class="nx">mashTags</span> <span class="o">=</span> <span class="nx">mashlib</span><span class="p">.</span><span class="nx">getChunksFromString</span><span class="p">(</span><span class="nx">chat</span><span class="p">.</span><span class="nx">get</span><span class="p">(</span><span class="s1">'text'</span><span class="p">),</span> <span class="s1">'#'</span><span class="p">);</span>
<span class="k">if</span> <span class="p">(</span><span class="nx">mashTags</span><span class="p">.</span><span class="nx">length</span> <span class="o">></span> <span class="mi">0</span><span class="p">)</span> <span class="p">{</span>
<span class="kd">var</span> <span class="nx">alreadyNotifiedUsers</span> <span class="o">=</span> <span class="k">new</span> <span class="nb">Array</span><span class="p">();</span> <span class="c1">//Make sure we only send a multi-tagged chat once</span>
<span class="k">for</span> <span class="p">(</span><span class="kd">var</span> <span class="nx">t</span> <span class="k">in</span> <span class="nx">mashTags</span><span class="p">)</span> <span class="p">{</span>
<span class="kd">var</span> <span class="nx">foundTag</span> <span class="o">=</span> <span class="nx">nodeChatModel</span><span class="p">.</span><span class="nx">globalMashTags</span><span class="p">.</span><span class="nx">find</span><span class="p">(</span><span class="kd">function</span> <span class="p">(</span><span class="nx">tag</span><span class="p">)</span> <span class="p">{</span><span class="k">return</span> <span class="nx">tag</span><span class="p">.</span><span class="nx">get</span><span class="p">(</span><span class="s1">'name'</span><span class="p">)</span> <span class="o">===</span> <span class="nx">mashTags</span><span class="p">[</span><span class="nx">t</span><span class="p">];});</span></pre></div> </td> </tr> <tr id="section-40"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-40">¶</a> </div> <p>Create a new mashTag if we need to</p> </td> <td class="code"> <div class="highlight"><pre> <span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="nx">foundTag</span><span class="p">)</span> <span class="p">{</span>
<span class="kd">var</span> <span class="nx">createTag</span> <span class="o">=</span> <span class="kd">function</span> <span class="p">(</span><span class="nx">tagName</span><span class="p">)</span> <span class="p">{</span>
<span class="nx">rc</span><span class="p">.</span><span class="nx">incr</span><span class="p">(</span><span class="s1">'next.mashtag.id'</span><span class="p">,</span> <span class="kd">function</span> <span class="p">(</span><span class="nx">err</span><span class="p">,</span> <span class="nx">newMashId</span><span class="p">)</span> <span class="p">{</span>
<span class="nx">foundTag</span> <span class="o">=</span> <span class="k">new</span> <span class="nx">models</span><span class="p">.</span><span class="nx">MashTagModel</span><span class="p">({</span><span class="s1">'id'</span><span class="o">:</span> <span class="nx">newMashId</span><span class="p">,</span> <span class="s1">'name'</span><span class="o">:</span> <span class="nx">tagName</span><span class="p">});</span></pre></div> </td> </tr> <tr id="section-41"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-41">¶</a> </div> <p>Add the tag to the global list, the users list (since they submitted it), and the chat message. Then add subcribe the user
to the mash tag.</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nx">nodeChatModel</span><span class="p">.</span><span class="nx">globalMashTags</span><span class="p">.</span><span class="nx">add</span><span class="p">(</span><span class="nx">foundTag</span><span class="p">);</span>
<span class="nx">foundTag</span><span class="p">.</span><span class="nx">watchingUsers</span><span class="p">.</span><span class="nx">add</span><span class="p">(</span><span class="nx">user</span><span class="p">);</span>
<span class="nx">addMashTagToStore</span><span class="p">(</span><span class="nx">foundTag</span><span class="p">);</span>
<span class="nx">sendMashTagsToUser</span><span class="p">(</span><span class="nx">user</span><span class="p">,</span> <span class="nx">foundTag</span><span class="p">);</span>
<span class="nx">broadcastGlobalMashTag</span><span class="p">(</span><span class="nx">foundTag</span><span class="p">);</span>
<span class="nx">saveMashtagForUser</span><span class="p">(</span><span class="nx">user</span><span class="p">,</span> <span class="nx">foundTag</span><span class="p">);</span>
<span class="nx">notifySubscribedMashTagUsers</span><span class="p">(</span><span class="nx">chat</span><span class="p">,</span><span class="nx">foundTag</span><span class="p">,</span> <span class="nx">alreadyNotifiedUsers</span><span class="p">);</span>
<span class="p">});</span>
<span class="p">};</span>
<span class="nx">createTag</span><span class="p">(</span><span class="nx">mashTags</span><span class="p">[</span><span class="nx">t</span><span class="p">]);</span>
<span class="p">}</span>
<span class="k">else</span> <span class="p">{</span></pre></div> </td> </tr> <tr id="section-42"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-42">¶</a> </div> <p>In the case the tag exists, check to see if the submitting user is watching it</p> </td> <td class="code"> <div class="highlight"><pre> <span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="nx">foundTag</span><span class="p">.</span><span class="nx">watchingUsers</span><span class="p">.</span><span class="nx">some</span><span class="p">(</span><span class="kd">function</span> <span class="p">(</span><span class="nx">u</span><span class="p">)</span> <span class="p">{</span> <span class="k">return</span> <span class="nx">u</span> <span class="o">===</span> <span class="nx">user</span><span class="p">;</span> <span class="p">}))</span> <span class="p">{</span>
<span class="nx">foundTag</span><span class="p">.</span><span class="nx">watchingUsers</span><span class="p">.</span><span class="nx">add</span><span class="p">(</span><span class="nx">user</span><span class="p">);</span>
<span class="nx">sendMashTagsToUser</span><span class="p">(</span><span class="nx">user</span><span class="p">,</span> <span class="nx">foundTag</span><span class="p">);</span>
<span class="nx">saveMashtagForUser</span><span class="p">(</span><span class="nx">user</span><span class="p">,</span> <span class="nx">foundTag</span><span class="p">);</span>
<span class="p">}</span></pre></div> </td> </tr> <tr id="section-43"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-43">¶</a> </div> <p>Notify all the subscribed users</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nx">notifySubscribedMashTagUsers</span><span class="p">(</span><span class="nx">chat</span><span class="p">,</span> <span class="nx">foundTag</span><span class="p">,</span> <span class="nx">alreadyNotifiedUsers</span><span class="p">);</span>
<span class="p">}</span>
<span class="p">}</span>
<span class="k">return</span> <span class="kc">true</span><span class="p">;</span>
<span class="p">}</span>
<span class="k">else</span> <span class="p">{</span>
<span class="k">return</span> <span class="kc">true</span><span class="p">;</span>
<span class="p">}</span>
<span class="p">}</span>
<span class="kd">function</span> <span class="nx">addMashTagToStore</span><span class="p">(</span><span class="nx">mashTag</span><span class="p">)</span> <span class="p">{</span>
<span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="nx">mashTag</span><span class="p">)</span> <span class="p">{</span>
<span class="nx">winston</span><span class="p">.</span><span class="nx">warn</span><span class="p">(</span><span class="s1">'[addMashTagToStore] called without valid tag.'</span><span class="p">);</span>
<span class="k">return</span><span class="p">;</span>
<span class="p">}</span>
<span class="kd">var</span> <span class="nx">rKey</span> <span class="o">=</span> <span class="s1">'mashtags'</span><span class="p">;</span>
<span class="nx">rc</span><span class="p">.</span><span class="nx">sadd</span><span class="p">(</span><span class="nx">rKey</span><span class="p">,</span> <span class="nx">mashTag</span><span class="p">.</span><span class="nx">xport</span><span class="p">({</span><span class="nx">recurse</span><span class="o">:</span> <span class="kc">false</span><span class="p">}),</span> <span class="kd">function</span> <span class="p">(</span><span class="nx">err</span><span class="p">,</span><span class="nx">data</span><span class="p">)</span> <span class="p">{</span>
<span class="k">if</span> <span class="p">(</span><span class="nx">err</span><span class="p">)</span> <span class="nx">winston</span><span class="p">.</span><span class="nx">warn</span><span class="p">(</span><span class="s1">'[addMashTagToStore] SADD failed for key: '</span> <span class="o">+</span> <span class="nx">rKey</span> <span class="o">+</span> <span class="s1">' and value: '</span><span class="p">);</span>
<span class="k">else</span> <span class="nx">winston</span><span class="p">.</span><span class="nx">info</span><span class="p">(</span><span class="s1">'[addMashTagToStore] SADD succeeded for key: '</span> <span class="o">+</span> <span class="nx">rKey</span> <span class="o">+</span> <span class="s1">' and value: '</span><span class="p">);</span>
<span class="p">});</span>
<span class="p">}</span></pre></div> </td> </tr> <tr id="section-44"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-44">¶</a> </div> <p>Helper function to persist a tag subscription for a user</p> </td> <td class="code"> <div class="highlight"><pre><span class="kd">function</span> <span class="nx">saveMashtagForUser</span><span class="p">(</span><span class="nx">user</span><span class="p">,</span> <span class="nx">mashTag</span><span class="p">)</span> <span class="p">{</span>
<span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="nx">mashTag</span><span class="p">)</span> <span class="p">{</span>
<span class="nx">winston</span><span class="p">.</span><span class="nx">warn</span><span class="p">(</span><span class="s1">'[saveMashtagForUser] called without valid tag.'</span><span class="p">);</span>
<span class="k">return</span><span class="p">;</span>
<span class="p">}</span>
<span class="kd">var</span> <span class="nx">rKey</span> <span class="o">=</span> <span class="s1">'user:'</span> <span class="o">+</span> <span class="nx">user</span><span class="p">.</span><span class="nx">get</span><span class="p">(</span><span class="s1">'name'</span><span class="p">)</span> <span class="o">+</span> <span class="s1">'.mashtags'</span><span class="p">;</span>
<span class="nx">rc</span><span class="p">.</span><span class="nx">sismember</span><span class="p">(</span><span class="nx">rKey</span><span class="p">,</span> <span class="nx">mashTag</span><span class="p">.</span><span class="nx">id</span><span class="p">,</span> <span class="kd">function</span> <span class="p">(</span><span class="nx">err</span><span class="p">,</span> <span class="nx">data</span><span class="p">)</span> <span class="p">{</span>
<span class="k">if</span> <span class="p">(</span><span class="nx">err</span><span class="p">)</span> <span class="nx">winston</span><span class="p">.</span><span class="nx">warn</span><span class="p">(</span><span class="s1">'SISMEMBER failed for key: '</span> <span class="o">+</span> <span class="nx">rKey</span> <span class="o">+</span> <span class="s1">' and value: '</span> <span class="o">+</span> <span class="nx">mashTag</span><span class="p">.</span><span class="nx">id</span><span class="p">);</span>
<span class="k">else</span> <span class="k">if</span> <span class="p">(</span><span class="nx">data</span> <span class="o">===</span> <span class="s1">'0'</span><span class="p">)</span> <span class="p">{</span>
<span class="nx">rc</span><span class="p">.</span><span class="nx">sadd</span><span class="p">(</span><span class="nx">rKey</span><span class="p">,</span> <span class="nx">mashTag</span><span class="p">.</span><span class="nx">id</span><span class="p">,</span> <span class="kd">function</span> <span class="p">(</span><span class="nx">err</span><span class="p">,</span> <span class="nx">data</span><span class="p">)</span> <span class="p">{</span>
<span class="k">if</span> <span class="p">(</span><span class="nx">err</span><span class="p">)</span> <span class="nx">winston</span><span class="p">.</span><span class="nx">warn</span><span class="p">(</span><span class="s1">'SADD failed for key: '</span> <span class="o">+</span> <span class="nx">rKey</span> <span class="o">+</span> <span class="s1">' and value: '</span> <span class="o">+</span> <span class="nx">mashTag</span><span class="p">.</span><span class="nx">id</span><span class="p">);</span>
<span class="k">else</span> <span class="nx">winston</span><span class="p">.</span><span class="nx">info</span><span class="p">(</span><span class="s1">'SADD succeeded for key: '</span> <span class="o">+</span> <span class="nx">rKey</span> <span class="o">+</span> <span class="s1">' and value: '</span> <span class="o">+</span> <span class="nx">mashTag</span><span class="p">.</span><span class="nx">id</span><span class="p">);</span>
<span class="p">});</span>
<span class="p">}</span>
<span class="k">else</span> <span class="k">if</span> <span class="p">(</span><span class="nx">data</span> <span class="o">===</span> <span class="s1">'1'</span><span class="p">)</span> <span class="p">{</span>
<span class="nx">winston</span><span class="p">.</span><span class="nx">warn</span><span class="p">(</span><span class="s1">'Value: '</span> <span class="o">+</span> <span class="nx">mashTag</span><span class="p">.</span><span class="nx">id</span> <span class="o">+</span> <span class="s1">' already exists for key: '</span><span class="o">+</span> <span class="nx">rKey</span><span class="p">);</span>
<span class="p">}</span>
<span class="p">});</span>
<span class="p">}</span></pre></div> </td> </tr> <tr id="section-45"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-45">¶</a> </div> <p>Helper function to send tags to a user</p> </td> <td class="code"> <div class="highlight"><pre><span class="kd">function</span> <span class="nx">broadcastGlobalMashTag</span><span class="p">(</span><span class="nx">mashTag</span><span class="p">)</span> <span class="p">{</span>
<span class="nx">socket</span><span class="p">.</span><span class="nx">broadcast</span><span class="p">({</span>
<span class="nx">event</span><span class="o">:</span> <span class="s1">'globalmashtag'</span><span class="p">,</span>
<span class="nx">data</span><span class="o">:</span> <span class="nx">mashTag</span><span class="p">.</span><span class="nx">xport</span><span class="p">({</span><span class="nx">recurse</span><span class="o">:</span> <span class="kc">false</span><span class="p">})</span>
<span class="p">});</span>
<span class="p">}</span></pre></div> </td> </tr> <tr id="section-46"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-46">¶</a> </div> <p>Send the chat to all currently subscribed users for a mashTag</p> </td> <td class="code"> <div class="highlight"><pre><span class="kd">function</span> <span class="nx">notifySubscribedMashTagUsers</span><span class="p">(</span><span class="nx">chat</span><span class="p">,</span> <span class="nx">mashTag</span><span class="p">,</span> <span class="nx">doNotNotifyList</span><span class="p">)</span> <span class="p">{</span>
<span class="nx">mashTag</span><span class="p">.</span><span class="nx">watchingUsers</span><span class="p">.</span><span class="nx">forEach</span><span class="p">(</span><span class="kd">function</span> <span class="p">(</span><span class="nx">user</span><span class="p">)</span> <span class="p">{</span>
<span class="k">if</span> <span class="p">(</span><span class="nx">doNotNotifyList</span><span class="p">[</span><span class="nx">user</span><span class="p">.</span><span class="nx">get</span><span class="p">(</span><span class="s1">'name'</span><span class="p">)])</span> <span class="k">return</span><span class="p">;</span>
<span class="nx">winston</span><span class="p">.</span><span class="nx">info</span><span class="p">(</span><span class="s1">'[notifySubscribedMashTagUsers] notifying user: '</span> <span class="o">+</span> <span class="nx">user</span><span class="p">.</span><span class="nx">get</span><span class="p">(</span><span class="s1">'name'</span><span class="p">)</span> <span class="o">+</span> <span class="s1">' for chat: '</span> <span class="o">+</span> <span class="nx">chat</span><span class="p">.</span><span class="nx">xport</span><span class="p">());</span>
<span class="nx">_</span><span class="p">.</span><span class="nx">each</span><span class="p">(</span><span class="nx">user</span><span class="p">.</span><span class="nx">clientList</span><span class="p">,</span> <span class="kd">function</span> <span class="p">(</span><span class="nx">client</span><span class="p">)</span> <span class="p">{</span>
<span class="nx">winston</span><span class="p">.</span><span class="nx">info</span><span class="p">(</span><span class="s1">'[notifySubscribedMashTagUsers] client send for user: '</span> <span class="o">+</span> <span class="nx">user</span><span class="p">.</span><span class="nx">get</span><span class="p">(</span><span class="s1">'name'</span><span class="p">)</span> <span class="o">+</span> <span class="s1">' for client: '</span> <span class="o">+</span> <span class="nx">client</span><span class="p">.</span><span class="nx">sessionId</span><span class="p">);</span>
<span class="nx">client</span><span class="p">.</span><span class="nx">send</span><span class="p">({</span>
<span class="nx">event</span><span class="o">:</span> <span class="s1">'mash'</span><span class="p">,</span>
<span class="nx">data</span><span class="o">:</span> <span class="nx">chat</span><span class="p">.</span><span class="nx">xport</span><span class="p">()</span>
<span class="p">});</span>
<span class="p">});</span></pre></div> </td> </tr> <tr id="section-47"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-47">¶</a> </div> <p>Add the user to do not call list so they only get one copy</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nx">doNotNotifyList</span><span class="p">[</span><span class="nx">user</span><span class="p">.</span><span class="nx">get</span><span class="p">(</span><span class="s1">'name'</span><span class="p">)]</span> <span class="o">=</span> <span class="mi">1</span><span class="p">;</span>
<span class="p">});</span>
<span class="p">}</span></pre></div> </td> </tr> <tr id="section-48"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-48">¶</a> </div> <p>Open a config file (currently empty) to see if we are on a server</p> </td> <td class="code"> <div class="highlight"><pre><span class="nx">path</span><span class="p">.</span><span class="nx">exists</span><span class="p">(</span><span class="nx">config_file</span><span class="p">,</span> <span class="kd">function</span> <span class="p">(</span><span class="nx">exists</span><span class="p">)</span> <span class="p">{</span>
<span class="nx">winston</span><span class="p">.</span><span class="nx">info</span><span class="p">(</span><span class="s1">'Attempting to use config at '</span> <span class="o">+</span> <span class="nx">config_file</span><span class="p">);</span>
<span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="nx">exists</span><span class="p">)</span> <span class="p">{</span>
<span class="nx">winston</span><span class="p">.</span><span class="nx">info</span><span class="p">(</span><span class="s1">'no config found. starting in local dev mode'</span><span class="p">);</span>
<span class="nx">app</span><span class="p">.</span><span class="nx">listen</span><span class="p">(</span><span class="nx">dev_port</span><span class="p">);</span>
<span class="kd">var</span> <span class="nx">port</span> <span class="o">=</span> <span class="nx">dev_port</span><span class="p">;</span></pre></div> </td> </tr> <tr id="section-49"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-49">¶</a> </div> <p>Hack, delete the old css. For some reason the middleware is not recompiling</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nx">fs</span><span class="p">.</span><span class="nx">unlink</span><span class="p">(</span><span class="s1">'./public/main.css'</span><span class="p">,</span> <span class="kd">function</span> <span class="p">(</span><span class="nx">err</span><span class="p">)</span> <span class="p">{</span>
<span class="k">if</span> <span class="p">(</span><span class="nx">err</span><span class="p">)</span> <span class="nx">winston</span><span class="p">.</span><span class="nx">warn</span><span class="p">(</span><span class="s1">'Unlink failed for ./public/main.css: '</span> <span class="o">+</span> <span class="nx">err</span><span class="p">);</span>
<span class="k">else</span> <span class="nx">winston</span><span class="p">.</span><span class="nx">info</span><span class="p">(</span><span class="s1">'Unlinked ./public/main.css'</span><span class="p">);</span>
<span class="p">});</span>
<span class="kd">var</span> <span class="nx">options</span> <span class="o">=</span> <span class="p">{</span>
<span class="nx">host</span><span class="o">:</span> <span class="s1">'localhost'</span><span class="p">,</span>
<span class="nx">port</span><span class="o">:</span> <span class="nx">port</span><span class="p">,</span>
<span class="nx">path</span><span class="o">:</span> <span class="s1">'/main.css'</span>
<span class="p">}</span>
<span class="nx">http</span><span class="p">.</span><span class="nx">get</span><span class="p">(</span><span class="nx">options</span><span class="p">,</span> <span class="kd">function</span> <span class="p">(</span><span class="nx">res</span><span class="p">)</span> <span class="p">{</span><span class="nx">winston</span><span class="p">.</span><span class="nx">info</span><span class="p">(</span><span class="s1">'GET main.css complete'</span><span class="p">)});</span>
<span class="p">}</span>
<span class="k">else</span> <span class="p">{</span>
<span class="nx">winston</span><span class="p">.</span><span class="nx">info</span><span class="p">(</span><span class="s1">'config found. starting in server mode'</span><span class="p">);</span>
<span class="nx">app</span><span class="p">.</span><span class="nx">listen</span><span class="p">(</span><span class="nx">server_port</span><span class="p">);</span>
<span class="kd">var</span> <span class="nx">port</span> <span class="o">=</span> <span class="nx">server_port</span><span class="p">;</span>
<span class="p">}</span>
<span class="nx">winston</span><span class="p">.</span><span class="nx">info</span><span class="p">(</span><span class="s1">'listening on port '</span> <span class="o">+</span> <span class="nx">port</span><span class="p">);</span>
<span class="nx">app</span><span class="p">.</span><span class="nx">get</span><span class="p">(</span><span class="s1">'/'</span><span class="p">,</span> <span class="nx">restrict</span><span class="p">,</span> <span class="kd">function</span> <span class="p">(</span><span class="nx">req</span><span class="p">,</span> <span class="nx">res</span><span class="p">)</span> <span class="p">{</span>
<span class="nx">res</span><span class="p">.</span><span class="nx">render</span><span class="p">(</span><span class="s1">'index'</span><span class="p">,</span> <span class="p">{</span>
<span class="nx">locals</span><span class="o">:</span> <span class="p">{</span> <span class="nx">name</span><span class="o">:</span> <span class="nx">req</span><span class="p">.</span><span class="nx">session</span><span class="p">.</span><span class="nx">user</span><span class="p">.</span><span class="nx">name</span><span class="p">,</span> <span class="nx">port</span><span class="o">:</span> <span class="nx">port</span><span class="p">,</span> <span class="nx">hash</span><span class="o">:</span> <span class="nx">JSON</span><span class="p">.</span><span class="nx">stringify</span><span class="p">(</span><span class="nx">req</span><span class="p">.</span><span class="nx">session</span><span class="p">.</span><span class="nx">hash</span><span class="p">)</span> <span class="p">}</span>
<span class="p">});</span>
<span class="p">});</span>
<span class="p">});</span>
</pre></div> </td> </tr> </tbody> </table> </div> </body> </html>