├── templates
    ├── basic-news.html
    ├── add-rss.html
    └── columns.html
├── lib
    ├── hn-proxy.sjs
    ├── spin.min.js
    ├── lawnchair-0.6.1.min.js
    ├── underscore.js
    ├── angular-0.9.19.min.js
    └── jquery-1.9.1.min.js
├── app
    ├── strata-pool.sjs
    ├── cache.sjs
    ├── megazine.sjs
    ├── article.sjs
    ├── content-extraction.sjs
    └── news-sources.sjs
├── index.html
└── megazine.css


/templates/basic-news.html:
--------------------------------------------------------------------------------
1 | <div id="timeline">
2 |   <ng:include src="'templates/columns.html'"/>
3 | </div>
4 | 


--------------------------------------------------------------------------------
/templates/add-rss.html:
--------------------------------------------------------------------------------
1 | <form class="newRSS" ng:submit="save()">
2 | 	<input type="text" placeholder="Title" name="name"/>
3 | 	<input type="text" placeholder="URL" name="url" size="40"/>
4 | 	<input type="submit" value="add!"/>
5 | 	<br />{{validationError.message}}
6 | </form>
7 | 
8 | 


--------------------------------------------------------------------------------
/templates/columns.html:
--------------------------------------------------------------------------------
 1 | <!-- common news article layout -->
 2 | <div class="col" ng:repeat="col in columns">
 3 |   <div class="article {{$position}}" ng:repeat="article in col">
 4 |     <a class="hide" ng:click="hideArticle(article, col)">(hide article)</a>
 5 |     <div class="inner">
 6 |       <a ng:href="{{article.url}}">
 7 |         <h3 ng:show="article.heading.text">{{article.heading.text}}</h3>
 8 |         <img ng:show="article.heading.image" ng:src="{{article.heading.image}}"/>
 9 |       </a>
10 |       <div class="user" ng:show="article.users">
11 |         by {{article.userList()}}
12 |         <a ng:href="{{article.pointerURL}}">(source)</a>
13 |       </div>
14 | 
15 |       <div ng:show="article.contextImage"
16 |         class="illustration"
17 |         ng:style="article.contextImage.style"></div>
18 |       
19 |       <div class="pointerText" ng:show="article.pointerText">{{article.pointerText}}</div>
20 | 
21 |       <div class="summary"
22 |         ng:show="article.summary"
23 |         ng:style="article.summary.style">
24 |         {{article.summary.text | html}}
25 |       </div>
26 |     </div>
27 |   </div>
28 | </div>
29 | 


--------------------------------------------------------------------------------
/lib/hn-proxy.sjs:
--------------------------------------------------------------------------------
 1 | #!/usr/bin/env apollo
 2 | 
 3 | var http = require('apollo:http');
 4 | var cutil = require('apollo:cutil');
 5 | 
 6 | exports.topHNStories = null;
 7 | var getTopHNStories = cutil.makeBoundedFunction(
 8 |   function() {
 9 |     if (exports.topHNStories == null) {
10 |       update();
11 |       spawn updateLoop();
12 |     }
13 |     return exports.topHNStories;
14 |   },
15 |   1);
16 | 
17 | 
18 | function update() {
19 |   console.log("contacting hn...");
20 |   waitfor {
21 |     var payload = http.get('http://api.ihackernews.com/page', {query: {format: 'json'}});
22 |   }
23 |   or {
24 |     hold(5*60*1000);
25 |     console.log("timeout");
26 |     return;
27 |   }
28 |   console.log("done");
29 |   exports.topHNStories = payload;
30 | }
31 | 
32 | function updateLoop() {
33 |   while (true) {
34 |     hold(5*60*1000);
35 |     try {
36 |       update();
37 |     } catch(updateErr) {
38 |       process.stderr.write("Error updating: " + updateErr + "\n (will try again in 5 minutes)\n");
39 |     }
40 |   }
41 | }
42 | 
43 | function jsonp(cb, content) {
44 |   return cb + "(" + content + ");";
45 | }
46 | 
47 | function requestHandler(req, res) {
48 |   try {
49 |     req.parsedURL = http.parseURL("http://"+req.headers.host+req.url);
50 |     if (req.method !== "GET") throw "Unknown method";
51 |     var cb = req.parsedURL.queryKey.callback;
52 |     if(req.parsedURL.queryKey.format != 'jsonp') throw "only `jsonp` format is supported"
53 |     if(!cb) throw "No `callback` name provided"
54 |     var content = getTopHNStories();
55 | 
56 |     res.setHeader("Access-Control-Allow-Origin", "*");
57 |     res.writeHead(200, {"Content-Type":"application/json; charset=utf-8"});
58 |     res.end(jsonp(cb, content));
59 |   }
60 |   catch (e) {
61 |     try {
62 |       res.writeHead(400);
63 |       res.end(e.toString());
64 |     } catch (writeErr) {
65 |       process.stderr.write(writeErr + "\n (original error: " + e + "\n");
66 |     }
67 |   }
68 | }
69 | 
70 | var port = '7865';
71 | process.stdout.write("listening on port " + port + "\n");
72 | require('apollo:node-http').runSimpleServer(requestHandler, port);
73 | 


--------------------------------------------------------------------------------
/app/strata-pool.sjs:
--------------------------------------------------------------------------------
 1 | var cutil = require("sjs:cutil");
 2 | var events = require("sjs:events");
 3 | var array = require('sjs:array');
 4 | var seq = require('sjs:sequence');
 5 | var logging = require("sjs:logging");
 6 | 
 7 | var StrataPool = exports.StrataPool = function StrataPool() {
 8 |   this.error = new cutil.Condition();
 9 |   this.change = new events.Emitter();
10 |   this.empty = new cutil.Condition();
11 |   this.reset();
12 | };
13 | 
14 | StrataPool.prototype = {
15 |   abort: function(error) {
16 |     if(this._aborting) return; // prevent reentrant abort() calls from retract / error handlers
17 |     this._aborting = true;
18 |     if(error) {
19 |       this.error.set(error);
20 |     }
21 |     this.strata .. seq.filter(x -> x) .. seq.each {|stratum| stratum.abort(); };
22 |     this.strata = [];
23 |     this._aborting = false;
24 |     this._changed();
25 |   },
26 | 
27 |   reset: function() {
28 |     if(this.strata && this.strata.length > 0) {
29 |       this.abort();
30 |     }
31 |     this.empty.clear();
32 |     this.error.clear();
33 |     this._aborting = false;
34 |     this.strata = [];
35 |     this.size = 0;
36 |   },
37 | 
38 |   run: function(fn, _this) {
39 |     var stratum = this.add(fn,_this);
40 |     return stratum.waitforValue();
41 |   },
42 | 
43 |   add: function(fn, _this, cb) {
44 |     var stratum;
45 |     var task = function() {
46 |       hold(0); // ensure stratum makes it into `this.strata` and gets returned immediately
47 |       var err = undefined;
48 |       var result;
49 |       try {
50 |         result = fn.call(_this);
51 |         if(cb) { cb.call(_this, result); }
52 |       } catch(e) {
53 |         logging.error("Strata error: #{e}");
54 |         err = e;
55 |       } finally {
56 |         this.strata .. array.remove(stratum);
57 |         this._changed();
58 |         if(err !== undefined) {
59 |           this.abort(err);
60 |           throw err;
61 |         }
62 |       }
63 |       hold(0); 
64 |     };
65 |     stratum = spawn(task.call(this));
66 |     this.strata.push(stratum);
67 |     this._changed();
68 |     return stratum;
69 |   },
70 | 
71 |   _changed: function() {
72 |     logging.debug("strata pool changed, now has #{this.strata.length} strata");
73 |     var self = this;
74 |     this.size = this.strata.length;
75 |     if(this.size == 0) {
76 |       this.empty.set();
77 |     } else {
78 |       this.empty.clear();
79 |     }
80 |     this.change.emit();
81 |   }
82 | };
83 | 
84 | 


--------------------------------------------------------------------------------
/app/cache.sjs:
--------------------------------------------------------------------------------
 1 | var logging = require("sjs:logging");
 2 | var seq = require("sjs:sequence");
 3 | 
 4 | // increment VERSION when changing data model
 5 | var VERSION = 1;
 6 | 
 7 | var Cache = exports.Cache = function Cache(service) {
 8 |   this.service = service;
 9 |   this._seen = {};
10 |   waitfor() {
11 |     this.db = new Lawnchair({name: service}, resume);
12 |   }
13 | }
14 | 
15 | Cache.prototype = {
16 |   save: function(obj) {
17 |     this._keep(obj);
18 |     waitfor() {
19 |       obj._DB_VERSION = VERSION;
20 |       this.db.save(obj, resume);
21 |     }
22 |   },
23 | 
24 |   get: function(key) {
25 |     waitfor(var obj) {
26 |       this.db.get(key, resume);
27 |     }
28 |     logging.debug("cache #{obj ? 'HIT' : 'MISS'}: #{key} [#{this.service}]");
29 |     if (!obj || obj._DB_VERSION != VERSION) return null;
30 |     this._keep(obj);
31 |     return obj;
32 |   },
33 | 
34 |   all: function() {
35 |     waitfor(var all) {
36 |       this.db.all(resume);
37 |     }
38 |     return all;
39 |   },
40 | 
41 |   _keep: function(obj) {
42 |     var key = obj.key;
43 |     if(!key) {
44 |       throw new Error("item persisted to " + this.service + " cache without a key: " + JSON.stringify(obj));
45 |     }
46 |     if(key.toString() !== key) {
47 |       logging.warn("non-string key in DB: ", key);
48 |       obj.key = key.toString();
49 |     }
50 |     this._seen[key] = true;
51 |   },
52 | 
53 |   remove: function(key) {
54 |     waitfor() { this.db.remove(key, resume); }
55 |   },
56 | 
57 |   flush: function() {
58 |     // remove all keys from the DB that we haven't
59 |     // seen so far in the current session
60 |     var del_keys = [];
61 |     var self = this;
62 |     try {
63 |       this.db.each(function(item) {
64 |         var key = item.key;
65 |         var seen = key in self._seen && self._seen.hasOwnProperty(key);
66 |         if(!seen) {
67 |           del_keys.push(item.key);
68 |         }
69 |       });
70 |     }
71 |     catch(e) {
72 |       // XXX There is some bug in lawnchair which sometimes gets the
73 |       // db into a bad state (keys there, but entries missing). This
74 |       // causes db.each() to throw. Best we can do for now is to remove
75 |       // the whole db:
76 |       logging.debug("lawnchair db is corrupt; deleting");
77 |       // XXX this.db.nuke() won't work; we'll assume DOM storage for now:
78 |       if (!window.localStorage) return;
79 |       try {
80 |         JSON.parse(window.localStorage[this.service+'._index_']).forEach(function(i) {
81 |           delete window.localStorage[i];
82 |         });
83 |       }
84 |       catch (e) {
85 |         logging.debug("lawnchair db index is corrupt too.");
86 |       }
87 |       delete window.localStorage[this.service+'._index_'];
88 |       return;
89 |     }
90 |     logging.debug("removing #{del_keys.length} keys from #{this.service}:", del_keys);
91 |     del_keys .. seq.each.par(this.remove.bind(this));
92 |     waitfor(var items) { this.db.get(del_keys, resume); }
93 |     if(items.length > 0) {
94 |       logging.error("#{items.length} cache items did not get deleted from collection #{this.service}:", items);
95 |     }
96 |   }
97 | };
98 | 
99 | 


--------------------------------------------------------------------------------
/app/megazine.sjs:
--------------------------------------------------------------------------------
  1 | var logging = require("sjs:logging");
  2 | var Cache = require("./cache.sjs").Cache;
  3 | 
  4 | var NewsSources = require('./news-sources');
  5 | 
  6 | if(logging.isEnabled(logging.VERBOSE)) {
  7 |   // in debug mode, pop up an apollo console
  8 |   require("sjs:xbrowser/console").console({receivelog:false});
  9 | }
 10 | 
 11 | // The main app controller, initialized by angular.js
 12 | var App = exports.App = function App(route) {
 13 |   this.route = route;
 14 |   this.feeds = [];
 15 |   this.feedStore = new Cache("rss_feeds");
 16 |   route.when('/hackernews', {controller: NewsSources.HackerNews, template: "templates/basic-news.html"});
 17 |   route.when('/rss/new', {controller: RssAdder(this), template: "templates/add-rss.html"});
 18 |   route.when('/rss/:feed', {controller: NewsSources.RSS, template: "templates/basic-news.html"});
 19 |   spawn(this.run(route));
 20 | };
 21 | App.$inject=['$route'];
 22 | 
 23 | App.prototype.run = function() {
 24 |   this.feeds = this.feedStore.all();
 25 |   // every time the route changes, load the appropriate
 26 |   // news type (and abort the old news loader if there is one):
 27 |    while (true) {
 28 |      waitfor {
 29 |        var old = this.route;
 30 |        waitfor() { this.route.onChange(resume); }
 31 |      }
 32 |      or {
 33 |        this.runRoute();
 34 |        hold();
 35 |      }
 36 |    };
 37 | };
 38 | 
 39 | App.prototype.runRoute = function() {
 40 |   // make sure scope is initialized:
 41 |   hold(0);
 42 |   
 43 |   if (!this.route.current || !this.route.current.scope) {
 44 |     logging.debug("route changed with no current scope: ", this.route.current);
 45 |     return;
 46 |   }
 47 |   logging.debug("new route:", this.route.current);
 48 | 
 49 |   // init the scope, and run it;
 50 |   this.news = this.route.current.scope;
 51 |   
 52 |   // for debugging
 53 |   window.news = this.news;
 54 |   this.$root.$eval();
 55 |   if(this.news._init) {
 56 |     try {
 57 |       this.news._init();
 58 |       this.news.run();
 59 |     }
 60 |     catch (e) {
 61 |       logging.error("route threw error: "+e);
 62 |     }
 63 |   }
 64 | };
 65 | 
 66 | App.prototype.addFeed = function(url, name) {
 67 |   if((!url) || (!name)) {
 68 |     throw new Error("Please enter both name and feed URL");
 69 |   }
 70 |   var feed = {key: url, url:url, name:name};
 71 |   this.feeds.push(feed);
 72 |   this.feedStore.save(feed);
 73 |   //TODO: fix double-encoding requirement
 74 |   document.location.href = "#/rss/" + encodeURIComponent(encodeURIComponent(url));
 75 | };
 76 | 
 77 | App.prototype.removeFeed = function(feed) {
 78 |   angular.Array.remove(this.feeds, feed);
 79 |   this.feedStore.remove(feed.key);
 80 | };
 81 | 
 82 | 
 83 | function RssAdder(app) {
 84 |   // returns a class constructor with the `app` pre-bound
 85 |   var Cls = function() {
 86 |   }
 87 |   Cls.prototype = {
 88 |     save: function() {
 89 |       try {
 90 |         app.addFeed(this.url, this.name);
 91 |       } catch(e) {
 92 |         this.validationError = e;
 93 |       }
 94 |     },
 95 |     type: 'add-rss',
 96 |     title: "Add a new RSS feed",
 97 |     about: "enter any URL to add it to your megazine tabs"
 98 |   };
 99 |   return Cls;
100 | };
101 | 


--------------------------------------------------------------------------------
/lib/spin.min.js:
--------------------------------------------------------------------------------
1 | //fgnass.github.com/spin.js#v1.2
2 | (function(a,b,c){function n(a){var b={x:a.offsetLeft,y:a.offsetTop};while(a=a.offsetParent)b.x+=a.offsetLeft,b.y+=a.offsetTop;return b}function m(a,b){for(var d in b)a[d]===c&&(a[d]=b[d]);return a}function l(a,b){for(var c in b)a.style[k(a,c)||c]=b[c];return a}function k(a,b){var e=a.style,f,g;if(e[b]!==c)return b;b=b.charAt(0).toUpperCase()+b.slice(1);for(g=0;g<d.length;g++){f=d[g]+b;if(e[f]!==c)return f}}function j(a,b,c,d){var g=["opacity",b,~~(a*100),c,d].join("-"),h=.01+c/d*100,j=Math.max(1-(1-a)/b*(100-h),a),k=f.substring(0,f.indexOf("Animation")).toLowerCase(),l=k&&"-"+k+"-"||"";e[g]||(i.insertRule("@"+l+"keyframes "+g+"{"+"0%{opacity:"+j+"}"+h+"%{opacity:"+a+"}"+(h+.01)+"%{opacity:1}"+(h+b)%100+"%{opacity:"+a+"}"+"100%{opacity:"+j+"}"+"}",0),e[g]=1);return g}function h(a,b,c){c&&!c.parentNode&&h(a,c),a.insertBefore(b,c||null);return a}function g(a,c){var d=b.createElement(a||"div"),e;for(e in c)d[e]=c[e];return d}var d=["webkit","Moz","ms","O"],e={},f;h(b.getElementsByTagName("head")[0],g("style"));var i=b.styleSheets[b.styleSheets.length-1],o=function q(a){if(!this.spin)return new q(a);this.opts=m(a||{},{lines:12,length:7,width:5,radius:10,color:"#000",speed:1,trail:100,opacity:.25,fps:20})},p=o.prototype={spin:function(a){this.stop();var b=this,c=b.el=l(g(),{position:"relative"}),d,e;a&&(e=n(h(a,c,a.firstChild)),d=n(c),l(c,{left:(a.offsetWidth>>1)-d.x+e.x+"px",top:(a.offsetHeight>>1)-d.y+e.y+"px"})),c.setAttribute("aria-role","progressbar"),b.lines(c,b.opts);if(!f){var i=b.opts,j=0,k=i.fps,m=k/i.speed,o=(1-i.opacity)/(m*i.trail/100),p=m/i.lines;(function q(){j++;for(var a=i.lines;a;a--){var d=Math.max(1-(j+a*p)%m*o,i.opacity);b.opacity(c,i.lines-a,d,i)}b.timeout=b.el&&setTimeout(q,~~(1e3/k))})()}return b},stop:function(){var a=this.el;a&&(clearTimeout(this.timeout),a.parentNode&&a.parentNode.removeChild(a),this.el=c);return this}};p.lines=function(a,b){function e(a,d){return l(g(),{position:"absolute",width:b.length+b.width+"px",height:b.width+"px",background:a,boxShadow:d,transformOrigin:"left",transform:"rotate("+~~(360/b.lines*c)+"deg) translate("+b.radius+"px"+",0)",borderRadius:(b.width>>1)+"px"})}var c=0,d;for(;c<b.lines;c++)d=l(g(),{position:"absolute",top:1+~(b.width/2)+"px",transform:"translate3d(0,0,0)",opacity:b.opacity,animation:f&&j(b.opacity,b.trail,c,b.lines)+" "+1/b.speed+"s linear infinite"}),b.shadow&&h(d,l(e("#000","0 0 4px #000"),{top:"2px"})),h(a,h(d,e(b.color,"0 0 1px rgba(0,0,0,.1)")));return a},p.opacity=function(a,b,c){a.childNodes[b].style.opacity=c},function(){var a=l(g("group"),{behavior:"url(#default#VML)"}),b;if(!k(a,"transform")&&a.adj){for(b=4;b--;)i.addRule(["group","roundrect","fill","stroke"][b],"behavior:url(#default#VML)");p.lines=function(a,b){function k(a,d,i){h(f,h(l(e(),{rotation:360/b.lines*a+"deg",left:~~d}),h(l(g("roundrect",{arcsize:1}),{width:c,height:b.width,left:b.radius,top:-b.width>>1,filter:i}),g("fill",{color:b.color,opacity:b.opacity}),g("stroke",{opacity:0}))))}function e(){return l(g("group",{coordsize:d+" "+d,coordorigin:-c+" "+ -c}),{width:d,height:d})}var c=b.length+b.width,d=2*c,f=e(),i=~(b.length+b.radius+b.width)+"px",j;if(b.shadow)for(j=1;j<=b.lines;j++)k(j,-2,"progid:DXImageTransform.Microsoft.Blur(pixelradius=2,makeshadow=1,shadowopacity=.3)");for(j=1;j<=b.lines;j++)k(j);return h(l(a,{margin:i+" 0 0 "+i,zoom:1}),f)},p.opacity=function(a,b,c,d){d=d.shadow&&d.lines||0,a.firstChild.childNodes[b+d].firstChild.firstChild.opacity=c}}else f=k(a,"animation")}(),a.Spinner=o})(window,document)


--------------------------------------------------------------------------------
/app/article.sjs:
--------------------------------------------------------------------------------
  1 | var Content = require("./content-extraction");
  2 | var logging = require("sjs:logging");
  3 | var {supplant:s} = require("sjs:string");
  4 | var underscore = require("../lib/underscore.js");
  5 | 
  6 | // -------------------- Article object --------------------
  7 | 
  8 | // var Article = exports.Article = function(id, url, user, text, pointerURL) {
  9 | var Article = exports.Article = function(props) {
 10 |   props = underscore.clone(props);
 11 |   function prop(name, _default) {
 12 |     if(!(name in props)) {
 13 |       if(_default !== undefined) return _default;
 14 |       throw new Error("required property " + name + " not provided");
 15 |     }
 16 |     var val = props[name];
 17 |     delete props[name];
 18 |     return val;
 19 |   }
 20 | 
 21 |   var id = prop('id');
 22 |   var user = prop('user', null);
 23 | 
 24 |   this.key = 'article_' + id.toString(); // workaround lawnchair bug #58
 25 |   this.users = [];
 26 |   if(user) this.users.push(user);
 27 | 
 28 |   this.url = prop('url');
 29 |   this.pointerText = prop('text', null);
 30 |   this.pointerURL = prop('pointerURL', null);
 31 | 
 32 |   this.contentOverrides = {
 33 |     title: prop('title', null),
 34 |     summary: prop('content', null)
 35 |   };
 36 | 
 37 |   if(underscore.keys(props).length > 0) {
 38 |     throw new Error("unknown properties: " + underscore.keys(props).join(", "));
 39 |   }
 40 | };
 41 | 
 42 | Article.prototype.addUser = function(user) {
 43 |   this.users.push(user);
 44 | };
 45 | 
 46 | Article.prototype.update = function(opts) {
 47 |   if(opts.user) this.addUser(opts.user);
 48 | };
 49 | 
 50 | Article.prototype.userList = function() { return this.users.join(", "); };
 51 | 
 52 | Article.prototype.loadContent = function() {
 53 |   logging.debug("Processing article: #{this.url}");
 54 |   this.heading = {};
 55 | 
 56 |   var contents = Content.getURLContents.rateLimited(this.url);
 57 | 
 58 |   if (!contents) {
 59 |     logging.debug("no contents found for article:" + this);
 60 |     this.heading.text = this.url;
 61 |     return;
 62 |   }
 63 |   logging.debug("got article contents for #{this.url}:", contents);
 64 | 
 65 |   if(this.contentOverrides.title) contents.title = this.contentOverrides.title;
 66 |   
 67 |   this.contents = contents;
 68 |   this.img = Content.extractImage(this.contents, this.url);
 69 | 
 70 |   if(this.img && this.img.imgService) {
 71 |     this.heading.image = this.img.src;
 72 |     this.contextImage = null;
 73 |   } else {
 74 |     this.contextImage = this.img;
 75 |     this.populateTitle();
 76 |   }
 77 |   this.summary = this.getSummary(this.contentOverrides.summary);
 78 | };
 79 | 
 80 | Article.prototype.toString = function() {
 81 |   return s("<Article from: {url}>", this);
 82 | };
 83 | 
 84 | Article.prototype.populateTitle = function() {
 85 |   // set header.text to contents.title.
 86 |   // if the title is undefined, shift this.pointerText to replace it
 87 |   this.heading.text = this.contents.title;
 88 |   if(!this.heading.text) {
 89 |     // use tweet as title, but don't show anything for tweet text
 90 |     this.heading.text = this.pointerText;
 91 |     this.pointerText = null;
 92 |   }
 93 | };
 94 | 
 95 | Article.prototype.getSummary = function(override) {
 96 |   var maxlen = 250;
 97 |   var text = override || (this.contents.meta && this.contents.meta.content);
 98 |   if(!text) return;
 99 |   text = text.replace(/<[^>]*(>|$)/g, '')
100 |   var summary = {
101 |     text: text,
102 |     style: {}
103 |   };
104 | 
105 |   if (summary.text.length > maxlen) {
106 |     summary.style['text-align'] = "justify";
107 |     summary.text = summary.text.slice(0, maxlen).replace(/&[^;]*$/) + "&hellip;";
108 |   }
109 |   return summary;
110 | };
111 | 
112 | 
113 | 


--------------------------------------------------------------------------------
/index.html:
--------------------------------------------------------------------------------
  1 | <!DOCTYPE html>
  2 | <html xmlns:ng="http://angularjs.org">
  3 | <head>
  4 | <title>Megazine</title>
  5 | <meta name="apple-mobile-web-app-capable" content="yes"/>
  6 | <meta name="apple-mobile-web-app-status-bar-style" content="black" />
  7 | 
  8 | <meta name="viewport" content="initial-scale = 1.0,maximum-scale = 1.0,width=device-width" />
  9 | <link href='http://fonts.googleapis.com/css?family=Vollkorn' rel='stylesheet' type='text/css'>
 10 | 
 11 | <script src="lib/jquery-1.9.1.min.js"></script>
 12 | <script src="lib/lawnchair-0.6.1.min.js"></script>
 13 | <script src="lib/angular-0.9.19.min.js"></script>
 14 | 
 15 | <script src="http://code.onilabs.com/sjs/0.14/stratified.js"></script>
 16 | <script type="text/sjs">
 17 | try {
 18 |   try {
 19 |     // install spinners in the background, as they're less important than actually loading
 20 |     spawn((function() {
 21 |       require("./lib/spin.min.js");
 22 |       var spinContainer = $("#loading .spinner").empty();
 23 |       new Spinner().spin(spinContainer[0]);
 24 |       new Spinner({
 25 |         lines: 8,
 26 |         length: 3,
 27 |         width:2,
 28 |         color: '#fff',
 29 |         radius: 2,
 30 |       }).spin($("#unprocessedItems .spinner")[0]);
 31 |     })());
 32 |   } and {
 33 |     // we're going to need all of these - might as well pre-fetch them in parallel
 34 |     var seq = require("sjs:sequence");
 35 |     [
 36 |       "github:onilabs/sjs-webapi/master/yql",
 37 |       "sjs:string",
 38 |       "sjs:logging",
 39 |       "sjs:http",
 40 |       "sjs:sequence",
 41 |       "sjs:array",
 42 |       "sjs:url",
 43 |       "sjs:object",
 44 |       "sjs:cutil",
 45 |       "./lib/underscore.js",
 46 |       "./app/news-sources",
 47 |       "./app/content-extraction",
 48 |       "./app/article",
 49 |       "./app/megazine",
 50 |       "./app/cache"
 51 |     ] .. seq.each.par(require);
 52 |   }
 53 |   var string = require('sjs:string');
 54 |   // var common = require("apollo:common");
 55 | 
 56 |   var logging = require("sjs:logging");
 57 |   if(document.location.host.indexOf('127.0.0.1') !== -1 || document.location.host.indexOf('localhost') !== -1) {
 58 |     logging.setLevel(logging.DEBUG);
 59 |     logging.setFormatter(function(rec) {
 60 |       var now = new Date();
 61 |       var nowStr = string.supplant("{getHours}:{getMinutes}:{getSeconds}.{getMilliseconds}", now);
 62 |       return [nowStr + "|" + rec.level + ":"].concat(rec.args);
 63 |     });
 64 |   }
 65 |   else {
 66 |     logging.setLevel(logging.WARN);
 67 |   }
 68 | 
 69 |   var megazine = window.megazine = require('./app/megazine');
 70 |   angular.filter.escapeURI = function(str) { return encodeURIComponent(str); }
 71 |   angular.compile(document)();
 72 |   if(document.location.hash == '') {
 73 |     document.location.hash = '#/hackernews';
 74 |   };
 75 | 
 76 | } catch (e) {
 77 |   document.write(e);
 78 |   throw e;
 79 | }
 80 | </script>
 81 | <link rel="stylesheet" type="text/css" href="./megazine.css" />
 82 | </head>
 83 | <body>
 84 | 
 85 | <div ng:controller="megazine.App">
 86 | 
 87 |   <div id="loading" class="loading" ng:show="(!news)">
 88 |     <div class="spinner">LOADING...</div>
 89 |   </div>
 90 |   <div style="display:none" ng:show="news">
 91 |     <h1>{{news.title}}</h1>
 92 |     <div id="about">{{news.about}}</div>
 93 |     <h3 id="unprocessedItems" style="display:none;" ng:show="news.pool.size"><div class="spinner"></div>loading {{news.pool.size}} items</h3>
 94 |     <div class="tabbar" ng:show="news">
 95 |       <a class="tab hackernews active_{{news.type == 'hackernews'}}" href="#/hackernews">hacker news</a>
 96 |       <span ng:repeat="feed in feeds">
 97 |         <!-- TODO: fix double-encoding requirement -->
 98 |         <span class="tab rss active_{{route.current.params.feed == (feed.url | escapeURI)}}">
 99 |           <a ng:href="#/rss/{{feed.url | escapeURI | escapeURI}}">{{feed.name}}<a ng:click="removeFeed(feed)" class="delete">x</a></a>
100 |         </span>
101 |       </span>
102 |       <a class="tab rss active_{{news.type == 'add-rss'}}" href="#/rss/new"><strong>+</strong></a>
103 |     </div>
104 |     <div class="error" ng:show="news.pool.error.isSet">
105 |       Error: {{news.pool.error.value.toString()}}.<br />
106 |       <button ng:click="news.rerun()">Continue&hellip;</button>
107 |     </div>
108 |     <!-- view is detemined by the current App route -->
109 |     <ng:view/>
110 |   </div>
111 | </div>
112 | 
113 | </body>
114 | 
115 | </html>
116 | 


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/megazine.css:
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  1 | body {
  2 |   -webkit-font-smoothing: antialiased;
  3 |   padding: 30px 30px 30px 15px;
  4 | }
  5 | #timeline {
  6 |   margin: 0 auto;
  7 | }
  8 | 
  9 | #timeline .col, #timeline .tweets {
 10 |   width:25%;
 11 |   float:left;
 12 |   overflow:hidden;
 13 | }
 14 | #timeline .col {
 15 |   min-height:10px;
 16 | }
 17 | h1 {
 18 |   margin:0 0 0px 0;
 19 |   text-align:center;
 20 |   font: 50px 'Vollkorn';
 21 | }
 22 | .article {
 23 |   padding: 5px 5px 5px 5px;
 24 |   padding-bottom: 30px;
 25 |   display:block;
 26 |   position:relative;
 27 | }
 28 | .article .inner {
 29 |   border-top: 2px solid #eee;
 30 |   padding: 10px 10px 10px 10px;
 31 | }
 32 | .article.first .inner {
 33 |   border: none;
 34 | }
 35 | 
 36 | h3 {
 37 |   font: 18px 'Vollkorn';
 38 |   font-weight: normal;
 39 |   margin: 0px 0 0 0;
 40 |   line-height:24px;
 41 |   display: block;
 42 | }
 43 | h3 a:visited {
 44 |   color: #999; !important;
 45 | }
 46 | .tweets h3 {
 47 |   margin: 15px 0 5px 15px;
 48 | }
 49 | .summary {
 50 |   color: #666;
 51 |   font-size: 0.9em;
 52 | }
 53 | .pointerText, .btweet {
 54 |   font: 15px serif;
 55 |   font-weight: normal;
 56 |   line-height:20px;
 57 |   color:#222  ;
 58 | }
 59 | .pointerText {
 60 |   margin-bottom: 10px;
 61 | }
 62 | .tweets {
 63 |   background: #fafafa;
 64 |   margin-left:-1px;
 65 |   border-left: 1px solid #f1f1f1;
 66 | }
 67 | .btweet {
 68 |   padding: 10px 15px 5px 15px;
 69 |   color: #222;
 70 | }
 71 | .article a,.btweet a {
 72 |   color: #111;
 73 |   text-decoration:none;
 74 | }
 75 | .content span{
 76 |   color:#666;
 77 | }
 78 | .user, #about {
 79 |   color: #666;
 80 |   font-family:helvetica,sans-serif;
 81 |   font-size: 13px;
 82 |   margin-bottom:5px;
 83 | }
 84 | .illustration {
 85 |   margin: 5px 0 5px 0;
 86 |   width:100%;
 87 |   height:120px;
 88 |   /* !important decls below are a hack to get around angular.js bug #569 */
 89 |   background-position:50% 50% !important;
 90 |   background-size: 100% auto !important;
 91 |   background-repeat: no-repeat !important;
 92 | }
 93 | a.hide {
 94 |   display:none;
 95 |   position: absolute;
 96 |   right: 10px;
 97 |   left: 10px;
 98 |   bottom:15px;
 99 |   color:#999;
100 |   text-align:center;
101 | }
102 | .article:hover a.hide {
103 |   display:block;
104 | }
105 | #logout {
106 |   float:right;
107 |   margin: 30px;
108 | }
109 | #login {
110 |   margin:2em;
111 |   text-align:center;
112 | }
113 | #loading {
114 |   width:100%;
115 |   height:100%;
116 |   position:absolute;
117 |   display:fixed;
118 |   top:0;
119 |   left:0;
120 |   background: #eee;
121 |   text-align:center;
122 |   z-index:999;
123 |   font-family: 'Vollkorn';
124 |   font-size:2em;
125 | }
126 | #loading .spinner {
127 |   color: #ccc;
128 |   position:fixed;
129 |   width:200px;
130 |   margin-left:-100px;
131 |   margin-top:-100px;
132 |   top:50%;
133 |   left: 50%;
134 | }
135 | #about {
136 |   display:block;
137 |   text-align:center;
138 |   margin: 0px 0 30px 0;
139 | }
140 | #unprocessedItems {
141 |   position:fixed;
142 |   top:0;
143 |   right:0;
144 |   padding:2px;
145 |   padding-right:24px;
146 |   padding-left:10px;
147 |   opacity:0.9;
148 |   color:#eee;
149 |   background:#555;
150 |   border-bottom-left-radius:5px;
151 |   z-index: 999;
152 | }
153 | #unprocessedItems .spinner {
154 |   display:block;
155 |   position:absolute;
156 |   top:13px;
157 |   right: 13px;
158 | }
159 | 
160 | .tabbar {
161 |   border-bottom: 1px solid #ddd;
162 | }
163 | .tabbar a {
164 |   text-decoration:none;
165 |   color: #333;
166 | }
167 | .tabbar .tab {
168 |   z-index:50;
169 |   position:relative;
170 |   display:inline-block;
171 |   top:1px;
172 |   padding:5px 12px;
173 |   padding-bottom: 2px;
174 |   font-family: 'Vollkorn';
175 |   background: #ccc;
176 |   border-radius: 8px;
177 |   border:1px solid #aaa;
178 |   text-shadow: 0px 1px #eee;
179 |   border-bottom-left-radius:0;
180 |   border-bottom-right-radius:0;
181 |   border-bottom: none;
182 | }
183 | .tabbar .delete {
184 |   display:inline-block;
185 |   padding-left:5px;
186 |   background:none;
187 |   width:1em;
188 |   height:1em;
189 |   text-align:center;
190 |   color: #888;
191 | }
192 | 
193 | .tabbar .tab.active_true {
194 |   color:black;
195 |   background:white;
196 |   border-color:#ddd;
197 | }
198 | .newRSS, .newRSS input {
199 |   font-family: 'Vollkorn';
200 |   font-size:1em;
201 | }
202 | .newRSS {
203 |   text-align:center;
204 |   padding:2em;
205 | }
206 | .error {
207 |   font-size: 1.5em;
208 |   color: #b33;
209 |   margin:20px 0;
210 | }
211 | @media screen and (max-width: 900px) {
212 |   body {
213 |     padding:0;
214 |   }
215 |   h1 {
216 |     font-size: 25px;
217 |   }
218 | }
219 | @media screen and (max-width: 600px) {
220 |   #timeline .col, #timeline .tweets {
221 |     width: 100%;
222 |   }
223 | }
224 | 


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/lib/lawnchair-0.6.1.min.js:
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 1 | var Lawnchair=function(){if(!JSON)throw"JSON unavailable! Include http://www.json.org/json2.js to fix.";if(arguments.length<=2&&arguments.length>0)var a=typeof arguments[0]==="function"?arguments[0]:arguments[1],c=typeof arguments[0]==="function"?{}:arguments[0];else throw"Incorrect # of ctor args!";if(typeof a!=="function")throw"No callback was provided";var e=!(this instanceof Lawnchair)?new Lawnchair(c,a):this;e.record=c.record||"record";e.name=c.name||"records";var b;if(c.adapter){b=Lawnchair.adapters[e.indexOf(Lawnchair.adapters,
 2 | c.adapter)];b=b.valid()?b:undefined}else for(var d=0,f=Lawnchair.adapters.length;d<f;d++)if(b=Lawnchair.adapters[d].valid()?Lawnchair.adapters[d]:undefined)break;if(!b)throw"No valid adapter.";for(var g in b)e[g]=b[g];d=0;for(f=Lawnchair.plugins.length;d<f;d++)Lawnchair.plugins[d].call(e);e.init(c,a);return e};Lawnchair.adapters=[];
 3 | Lawnchair.adapter=function(a,c){c.adapter=a;var e="adapter valid init keys save batch get exists all remove nuke".split(" "),b=this.prototype.indexOf,d;for(d in c)if(b(e,d)===-1)throw"Invalid adapter! Nonstandard method: "+d;Lawnchair.adapters.push(c)};Lawnchair.plugins=[];Lawnchair.plugin=function(a){for(var c in a)c==="init"?Lawnchair.plugins.push(a[c]):this.prototype[c]=a[c]};
 4 | Lawnchair.prototype={isArray:Array.isArray||function(a){return Object.prototype.toString.call(a)==="[object Array]"},indexOf:function(a,c,e,b){if(a.indexOf)return a.indexOf(c);e=0;for(b=a.length;e<b;e++)if(a[e]===c)return e;return-1},lambda:function(a){return this.fn(this.record,a)},fn:function(a,c){return typeof c=="string"?new Function(a,c):c},uuid:function(){var a=function(){return((1+Math.random())*65536|0).toString(16).substring(1)};return a()+a()+"-"+a()+"-"+a()+"-"+a()+"-"+a()+a()+a()},each:function(a){var c=
 5 | this.lambda(a);if(this.__results){a=0;for(var e=this.__results.length;a<e;a++)c.call(this,this.__results[a],a)}else this.all(function(b){for(var d=0,f=b.length;d<f;d++)c.call(this,b[d],d)});return this}};
 6 | Lawnchair.adapter("dom",{valid:function(){return!!window.Storage},init:function(a,c){this.storage=window.localStorage;var e=this;this.indexer={key:e.name+"._index_",all:function(){JSON.parse(e.storage.getItem(this.key))==null&&e.storage.setItem(this.key,JSON.stringify([]));return JSON.parse(e.storage.getItem(this.key))},add:function(b){var d=this.all();d.push(b);e.storage.setItem(this.key,JSON.stringify(d))},del:function(b){for(var d=this.all(),f=[],g=0,h=d.length;g<h;g++)d[g]!=b&&f.push(d[g]);e.storage.setItem(this.key,
 7 | JSON.stringify(f))},find:function(b){for(var d=this.all(),f=0,g=d.length;f<g;f++)if(b===d[f])return f;return false}};c&&this.fn(this.name,c).call(this,this)},save:function(a,c){var e=a.key||this.uuid();this.indexer.find(e)||this.indexer.add(e);delete a.key;this.storage.setItem(e,JSON.stringify(a));if(c){a.key=e;this.lambda(c).call(this,a)}return this},batch:function(a,c){for(var e=[],b=0,d=a.length;b<d;b++)this.save(a[b],function(f){e.push(f)});c&&this.lambda(c).call(this,e);return this},keys:function(){callback&&
 8 | this.lambda(callback).call(this,this.indexer.all())},get:function(a,c){if(this.isArray(a)){for(var e=[],b=0,d=a.length;b<d;b++){var f=JSON.parse(this.storage.getItem(a[b]));if(f){f.key=a[b];e.push(f)}}c&&this.lambda(c).call(this,e)}else{if(f=JSON.parse(this.storage.getItem(a)))f.key=a;c&&this.lambda(c).call(this,f)}return this},all:function(a){for(var c=this.indexer.all(),e=[],b,d=0,f=c.length;d<f;d++){b=JSON.parse(this.storage.getItem(c[d]));b.key=c[d];e.push(b)}a&&this.fn(this.name,a).call(this,
 9 | e);return this},remove:function(a,c){var e=typeof a==="string"?a:a.key;this.indexer.del(e);this.storage.removeItem(e);c&&this.lambda(c).call(this);return this},nuke:function(a){this.all(function(c){for(var e=0,b=c.length;e<b;e++)this.remove(c[e]);a&&this.lambda(a).call(this)});return this}});
10 | Lawnchair.adapter("window-name",function(a,c){var e=window.top.name?JSON.parse(window.top.name):{};return{valid:function(){return typeof window.top.name!="undefined"},init:function(b,d){e[this.name]={index:[],store:{}};a=e[this.name].index;c=e[this.name].store;this.fn(this.name,d).call(this,this)},keys:function(b){this.fn("keys",b).call(this,a);return this},save:function(b,d){var f=b.key||this.uuid();b.key&&delete b.key;this.exists(f,function(g){g||a.push(f);c[f]=b;window.top.name=JSON.stringify(e);
11 | if(d){b.key=f;this.lambda(d).call(this,b)}});return this},batch:function(b,d){for(var f=[],g=0,h=b.length;g<h;g++)this.save(b[g],function(i){f.push(i)});d&&this.lambda(d).call(this,f);return this},get:function(b,d){var f;if(this.isArray(b)){f=[];for(var g=0,h=b.length;g<h;g++)f.push(c[b[g]])}else if(f=c[b])f.key=b;d&&this.lambda(d).call(this,f);return this},exists:function(b,d){this.lambda(d).call(this,!!c[b]);return this},all:function(b){for(var d=[],f=0,g=a.length;f<g;f++){var h=c[a[f]];h.key=a[f];
12 | d.push(h)}this.fn(this.name,b).call(this,d);return this},remove:function(b,d){for(var f=this.isArray(b)?b:[b],g=0,h=f.length;g<h;g++){delete c[f[g]];a.splice(this.indexOf(a,f[g]),1)}window.top.name=JSON.stringify(e);d&&this.lambda(d).call(this);return this},nuke:function(b){storage={};a=[];window.top.name=JSON.stringify(e);b&&this.lambda(b).call(this);return this}}}());
13 | 


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/app/content-extraction.sjs:
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  1 | var cutil = require('sjs:cutil');
  2 | var seq = require('sjs:sequence');
  3 | var logging = require('sjs:logging');
  4 | var yql = require('github:onilabs/sjs-webapi/master/yql');
  5 | var http = require('sjs:http');
  6 | var Url = require('sjs:url');
  7 | var s = require("sjs:string").supplant;
  8 | var func = require('sjs:function');
  9 | var array = require('sjs:array');
 10 | 
 11 | var underscore = require("../lib/underscore.js");
 12 | var Cache = require('./cache').Cache;
 13 | var imgServiceDomains = ["twitpic.com", "yfrog.com", "imgur.com"];
 14 | 
 15 | // -------------------- URL / Image helper functions --------------------
 16 | 
 17 | // attach a rate limited version of `fn` to `fn.rateLimited`
 18 | function rateLimit(fn, rate) {
 19 |   fn.rateLimited = func.rateLimit(fn, rate);
 20 | };
 21 | 
 22 | var getExpandedURL = exports.getExpandedURL = function(url, cache) {
 23 |   var cached = cache.get(url);
 24 |   if(!cached) {
 25 |     cached = {key: url, fullURL: expandUrl.rateLimited(url)};
 26 |     cache.save(cached);
 27 |   }
 28 |   return cached.fullURL;
 29 | };
 30 | 
 31 | var expandUrl = exports.expandUrl = function(url) {
 32 |   var data = http.jsonp("http://api.longurl.org/v2/expand", {
 33 |     query: {
 34 |       url: url,
 35 |       format: 'json',
 36 |       'user-agent': 'oni apollo: megazine'
 37 |     }
 38 |   });
 39 |   return data['long-url'];
 40 | }
 41 | rateLimit(expandUrl, 4);
 42 | 
 43 | var getURLContents = exports.getURLContents = function getURLContents(url) {
 44 |   var xpath = "//title[1]|//img[@src]|//meta[@name='description']|//script[contains(.,'hqdefault')]";
 45 |   var query = "select * from html where url=@url and xpath=@xpath";
 46 | 
 47 |   var result = (yql.query(query, {
 48 |     url:url,
 49 |     xpath:xpath
 50 |   }));
 51 | 
 52 |   logging.debug("querying article #{url} with xpath #{xpath} returns:", result.results);
 53 | 
 54 |   return result.results;
 55 | };
 56 | 
 57 | rateLimit(getURLContents, 8);
 58 | 
 59 | var extractImage = exports.extractImage = function extractImage(page, url) {
 60 |   var images = page.img;
 61 |   //page is the object returned by getURLContents.
 62 |   if (page.script) {
 63 |     // looking for http://i.ytimg.com/vi/lOTtpRAs5FY/hqdefault.jpg
 64 |     var m = page.script.content.match(/(http.+?hqdefault.jpg)/);
 65 |     if (m && m.length) images = [{src: m[0], width:300}];
 66 |   }
 67 |   
 68 |   if (images && images.length) {
 69 |     return getBestImage(images, url);
 70 |   } else {
 71 |     return null;
 72 |   }
 73 | };
 74 | 
 75 | function getBestImage(images, baseURL) {
 76 |   // remove src-less images
 77 |   var seenSources = [];
 78 |   images = images .. seq.filter(function(img) {
 79 |     return (img.src && !underscore.include(seenSources, img.src));
 80 |   }) .. seq.toArray();
 81 | 
 82 |   seenSources = seenSources.concat(images);
 83 | 
 84 |   images .. seq.each.par {|img|
 85 |     img.src = Url.normalize(img.src, baseURL);
 86 |     guessImageSize(img);
 87 |   }
 88 | 
 89 |   // filter out images < 140px; we never want to display them
 90 |   images = images .. seq.filter((img) -> (img.width === undefined) || (img.width > 140));
 91 |   images = images .. seq.sort(imageCompare);
 92 | 
 93 |   if(images.length == 0) return null;
 94 |   logging.debug("images (worst to best) = ", images);
 95 | 
 96 |   var best_img = images .. seq.at(-1);
 97 |   return new ArticleImage(best_img.src, isImageService(baseURL));
 98 | };
 99 | 
100 | function imageCompare(a, b) {
101 |   var attrs = function(img) {
102 |     var isJpeg = img.src.match(/\.jpe?g/);
103 |     var width = img.width ? img.width : 0;
104 |     var height = img.height ? img.height : 100;
105 |     // isJpeg trumps size, jpegs are less likely page decoration
106 |     return [isJpeg ? 1 : 0, width * height];
107 |   }
108 |   return array.cmp(attrs(a), attrs(b));
109 | };
110 | 
111 | function guessImageSize(img) {
112 |   if(img.width) return;
113 |   var match;
114 | 
115 |   // guess based on style attribute (accurate but uncommon)
116 |   var styleRe = /(?:^|[^-])width: *(\d+)px/;
117 |   match = (img.style && img.style.match(styleRe));
118 |   if(match) {
119 |     logging.debug("guessed image width of #{match[1]} based on style string: #{img.style} for url #{img.src}", match);
120 |     img.width = parseInt(match[1]);
121 |     img.height = img.width; // not correct, but roughly accurate
122 |     return;
123 |   };
124 | 
125 |   // guess based on URL params (inaccurate)
126 |   var sizeRe = /(?:x|w|xsize|size|width)=(\d+)/;
127 |   match = img.src.match(sizeRe);
128 |   if(match) {
129 |     logging.debug("guessed image width of #{match[1]} based on url: #{img.src}");
130 |     img.width = parseInt(match[1]);
131 |     img.height = img.width; // not correct, but roughly accurate
132 |     return;
133 |   }
134 | 
135 |   // last (bandwidth-intensive) resort: actually load it...
136 |   try {
137 |     var loaded = loadImage(img.src, 5);
138 |     img.width = loaded.width;
139 |     img.width = loaded.height;
140 |   } catch (e) {
141 |     logging.debug("failed to load image: #{e}");
142 |   }
143 | };
144 | 
145 | var loadImage = exports.loadImage = func.memoize(function(url, timeout) {
146 |   var domImg = new Image();
147 |   timeout = timeout || 5;
148 |   try {
149 |     waitfor() {
150 |       domImg.onload = resume;
151 |     }
152 |     logging.debug("loaded image #{domImg.src} to find that its width is #{domImg.width}");
153 |     return domImg;
154 |   } or {
155 |     domImg.src=url;
156 |     hold(timeout * 1000);
157 |     throw new Error("Image " + url + " failed to load in " + timeout + "s");
158 |   }
159 | });
160 | 
161 | 
162 | function isImageService(url) {
163 |   var domain = Url.parse(url).authority;
164 |   domain = domain.replace(/^wwww\./, ''); // strip leading www
165 |   return imgServiceDomains.indexOf(domain) !== -1;
166 | };
167 | 
168 | 
169 | var ArticleImage = exports.ArticleImage = function ArticleImage(src, imgService) {
170 |   this.src = src;
171 |   this.imgService = imgService;
172 |   this.style = {
173 |     /* TODO: should be 'background-image'. This is a hack to get around angular.js bug #569 */
174 |     'background': s('url({src})', this)
175 |   };
176 |   if(imgService) {
177 |     this.style.height = 200;
178 |   }
179 | };
180 | ArticleImage.prototype.toString = function() { return s("<ArticleImage: {src}>", this); };
181 | 
182 | 


--------------------------------------------------------------------------------
/app/news-sources.sjs:
--------------------------------------------------------------------------------
  1 | var logging = require("sjs:logging");
  2 | var seq = require('sjs:sequence');
  3 | var cutil = require("sjs:cutil");
  4 | var {supplant:s} = require("sjs:string");
  5 | var object = require('sjs:object');
  6 | var http = require("sjs:http");
  7 | var url = require("sjs:url");
  8 | 
  9 | var Article = require('article').Article;
 10 | 
 11 | var underscore = require("../lib/underscore.js");
 12 | var Content = require("./content-extraction");
 13 | var Cache = require("./cache").Cache;
 14 | var StrataPool = require('./strata-pool').StrataPool;
 15 | 
 16 | var dow = ["Sunday","Monday","Tuesday","Wednesday","Thursday","Friday","Saturday"];
 17 | 
 18 | var newsFunctions = {
 19 |   // methods common across all news sources
 20 |   reset: function() {
 21 |     this.pool.reset();
 22 |     var self = this;
 23 |     this.articles = {};
 24 |     this.title = 'The news';
 25 |     this.about=null;
 26 |     this.unprocessedItems = 0;
 27 |     this.items = [];
 28 |     this.redraw();
 29 |     this.title = this.getTitle();
 30 |   },
 31 |   
 32 |   loadTimeout: 7000,
 33 | 
 34 |   _init: function() {
 35 |     this.pool = new StrataPool();
 36 |     this.cache = new Cache(this.type);
 37 |     this.appendMethod = 'push'; // start by putting new items at the bottom
 38 |     this.reset();
 39 |   },
 40 | 
 41 |   processItems: function(items) {
 42 |     // process each item, wrapped in the strata pool to show
 43 |     // the number of pending items in the UI
 44 |     items .. seq.each.par {|item|
 45 |       this.pool.run(function() {
 46 |         this.processItem(item);
 47 |         this.items.push(item);
 48 |       }, this);
 49 |     }
 50 |     this.flush_cache();
 51 |   },
 52 | 
 53 |   flush_cache: function() {
 54 |     this.cache.flush();
 55 |   },
 56 | 
 57 |   rerun: function() {
 58 |     spawn(this.run());
 59 |   },
 60 | 
 61 |   run: function() {
 62 |     this.pool.reset();
 63 |     try {
 64 |       // keep loading new items every 2 mins
 65 |       while(true) {
 66 |         this.title = this.getTitle();
 67 |         var newItems;
 68 |         this.pool.run(function() {
 69 |           var items = this.loadNewItems();
 70 |           newItems = this.filterNewItems(items);
 71 |         }, this);
 72 |         this.processItems(newItems);
 73 |         this.appendMethod = 'unshift'; // future items get inserted above existing items
 74 |         hold(1000 * 60 * 2);
 75 |       }
 76 |     } or {
 77 |       this.pool.error.wait();
 78 |     } or {
 79 |       while (true) {
 80 |         this.pool.change.wait();
 81 |         this.redraw();
 82 |       }
 83 |     } catch(e) {
 84 |       this.pool.abort(e);
 85 |     } finally {
 86 |       this.redraw();
 87 |     }
 88 |   },
 89 | 
 90 |   getTitle: function() {
 91 |     var date = new Date();
 92 |     return "The "+(date.getHours()||12)+" O'Clock News";
 93 |   },
 94 | 
 95 |   filterNewItems: function(newItems, idProp){
 96 |     // returns only the items that haven't already been seen
 97 |     idProp = idProp || 'id';
 98 |     var existingItems = this.items;
 99 |     var existingIds = underscore.pluck(existingItems, idProp);
100 |     var newIds = [];
101 |     newItems .. seq.each {|item|
102 |       var id = item[idProp];
103 |       if(!id) {
104 |         logging.warn("encountered item without ID - ignoring", item);
105 |       } else {
106 |         newIds.push(id);
107 |       }
108 |     };
109 | 
110 |     newIds = underscore.difference(newIds, existingIds);
111 |     newItems = underscore.select(newItems, (t) -> underscore.include(newIds, t[idProp]));
112 |     return newItems;
113 |   },
114 | 
115 |   processArticle: function(opts) {
116 |     var url = opts.url;
117 |     if(!url) throw new Error("no URL given in article");
118 | 
119 |     if (!this.articles[url]) {
120 |       // create and load in two steps, since the load step is blocking
121 |       // and we want to make sure this.articles[url] is set immediately
122 |       var article = this.articles[url] = new Article(opts);
123 |       logging.debug("getting article", article);
124 |       var cached = this.cache.get(article.key);
125 |       if(cached) {
126 |         logging.verbose("using cached article for URL " + url);
127 |         underscore.extend(article, cached);
128 |       } else {
129 |         article.loadContent();
130 |         this.cache.save(article);
131 |       }
132 |       this.showArticle(article);
133 |     } else {
134 |       // article already exists; just add this user to its references
135 |       this.articles[url].update(opts);
136 |     }
137 |   },
138 | 
139 |   redraw: function() {
140 |     if(!this.$root) {
141 |       // XXX why does this happen?
142 |       logging.warn("redraw() called while $root is undefined", this);
143 |       return;
144 |     }
145 |     this.$root.$eval();
146 |   },
147 | 
148 |   getColumns: function() {
149 |     // XXX We need to check if the template for our view has been
150 |     // loaded. This is very hackish; Angular discourages accessing
151 |     // views from controllers.
152 |     var columns;
153 |     while (!(columns = $('.col', this.$element)).length) {
154 |       waitfor () {
155 |         this.$onEval(resume);
156 |       }
157 |     }
158 |     return columns;
159 |   },
160 | 
161 |   showArticle: function(article) {
162 |     if(article.hidden) return;
163 |     logging.info("Showing article: ", article);
164 |     // get the column with the smallest displayed height
165 |     var columns = this.getColumns();
166 |     var columnHeights = columns.map(function() { return $(this).height() }).get();
167 |     var minColumnHeight = Math.min.apply(Math, columnHeights);
168 |     var minColumnIndex = columnHeights.indexOf(minColumnHeight);
169 |     this.columns[minColumnIndex][this.appendMethod](article);
170 |     // We need to redraw here, so that our height measurements are up to date:
171 |     this.redraw();
172 |   },
173 | 
174 |   hideArticle: function(article, column) {
175 |     logging.debug("hiding article: ", article);
176 |     this.pool.add(function() {
177 |       article.hidden = true;
178 |       try {
179 |         this.cache.save(article);
180 |       } and {
181 |         angular.Array.remove(column, article);
182 |       }
183 |     }, this);
184 |   }
185 | 
186 | };
187 | 
188 | var HackerNews = exports.HackerNews = function HackerNews() {}
189 | HackerNews.prototype = object.merge(newsFunctions, {
190 |   _super: newsFunctions,
191 |   type: 'hackernews',
192 | 
193 |   reset: function() {
194 |     this.columns = [[],[],[],[]];
195 |     this._super.reset.call(this);
196 |   },
197 | 
198 |   loadTimeout: 10 * 1000,
199 | 
200 |   _fetchFrontPage: function() {
201 |     // attempt to fetch the front page news from multiple sources, since ihackernews is
202 |     // frequently down:
203 |     var sources = [
204 |       {url: 'http://www.onilabs.com:7865/', delay: 0},
205 |       {url: 'http://api.ihackernews.com/page', delay: this.loadTimeout / 2},
206 |     ];
207 | 
208 |     var pending = sources.length;
209 |     var load = function(source) {
210 |       try {
211 |         hold(source.delay);
212 |         return http.jsonp(source.url, {query: {format:'jsonp'}}).items;
213 |       } catch(e) {
214 |         pending -= 1;
215 |         if(pending > 0) {
216 |           // allow other stratum to succeed
217 |           hold();
218 |         } else {
219 |           // everything else already failed!
220 |           throw e;
221 |         }
222 |       }
223 |     };
224 |     while (1) {
225 |       try {
226 |         waitfor {
227 |           return cutil.waitforFirst(load, sources, this);
228 |         }
229 |         or {
230 |           hold(1000*60*2);
231 |           logging.warn("News requests timing out ");
232 |         }
233 |       }
234 |       catch (e) {
235 |         logging.warn("Error retrieving news: "+e);
236 |         // just retry in a bit; maybe should have backoff algo here
237 |         hold(1000*60);
238 |       }
239 |     }
240 |   },
241 | 
242 |   loadNewItems: function() {
243 |     var date = new Date();
244 |     this.about = "Hacker news links on " + dow[date.getDay()];
245 |     return this._fetchFrontPage();
246 |   },
247 | 
248 |   processItem: function(item) {
249 |     logging.debug("processing item: ",item);
250 |     var hn_base = 'http://news.ycombinator.com';
251 |     var commentUrl = s(hn_base + "/item?id={id}", item);
252 |     var itemUrl = item.url;
253 |     // XXX remove this hack once ihackernews API stops html-encoding their URLs!
254 |     itemUrl = resolveHtmlEntities(itemUrl);
255 |     this.processArticle({
256 |       id: item.id,
257 |       url: url.normalize(itemUrl, hn_base),
258 |       user: item.postedBy,
259 |       text: item.title,
260 |       pointerURL: commentUrl
261 |     });
262 |   },
263 | 
264 | });
265 | 
266 | var RSS = exports.RSS = function RSS(route) {
267 |   var url = this.url = decodeURIComponent(route.current.params.feed);
268 |   this.type = 'rss:' + url;
269 | };
270 | RSS.$inject = ['$route'];
271 | var yql = require('github:onilabs/sjs-webapi/master/yql');
272 | 
273 | RSS.prototype = object.merge(newsFunctions, {
274 |   _super: newsFunctions,
275 |   reset: function() {
276 |     this.columns = [[],[],[],[]];
277 |     this._super.reset.call(this);
278 |   },
279 |   loadNewItems: function() {
280 |     var rv = yql.query("select * from feednormalizer where url = @url and output='atom_1.0'", {
281 |       url: this.url
282 |     });
283 |     logging.info("RSS feed entries: ",rv);
284 |     this.about = "Latest articles from \"" + rv.results.feed.title + "\" on " + dow[new Date().getDay()];
285 |     var entries = rv.results.feed.entry;
286 |     if(!entries) throw new Error("No entries found for feed " + this.url);
287 |     return entries;
288 |   },
289 | 
290 |   processItem: function(item) {
291 |     logging.debug("processing feed entry: ", item);
292 |     var content = null;
293 |     if(item.summary && item.summary.content) content = item.summary.content;
294 |     if(item.content && item.content.content) content = item.content.content;
295 |     this.processArticle({
296 |       id: item.id,
297 |       url: item.link.href,
298 |       title: item.title,
299 |       content: content
300 |     });
301 |   }
302 | });
303 | 
304 | function resolveHtmlEntities(html) {
305 |   // textarea ensures entities get interpreted, but *not* tags (that would allow XSS)
306 |   var txt = document.createElement("textarea");
307 |   txt.innerHTML = html;
308 |   return txt.value;
309 | }
310 | 


--------------------------------------------------------------------------------
/lib/underscore.js:
--------------------------------------------------------------------------------
 1 | // Underscore.js 1.2.0
 2 | // (c) 2011 Jeremy Ashkenas, DocumentCloud Inc.
 3 | // Underscore is freely distributable under the MIT license.
 4 | // Portions of Underscore are inspired or borrowed from Prototype,
 5 | // Oliver Steele's Functional, and John Resig's Micro-Templating.
 6 | // For all details and documentation:
 7 | // http://documentcloud.github.com/underscore
 8 | (function(){function q(a,c,d){if(a===c)return a!==0||1/a==1/c;if(a==null)return a===c;var e=typeof a;if(e!=typeof c)return false;if(!a!=!c)return false;if(b.isNaN(a))return b.isNaN(c);var f=b.isString(a),g=b.isString(c);if(f||g)return f&&g&&String(a)==String(c);f=b.isNumber(a);g=b.isNumber(c);if(f||g)return f&&g&&+a==+c;f=b.isBoolean(a);g=b.isBoolean(c);if(f||g)return f&&g&&+a==+c;f=b.isDate(a);g=b.isDate(c);if(f||g)return f&&g&&a.getTime()==c.getTime();f=b.isRegExp(a);g=b.isRegExp(c);if(f||g)return f&&
 9 | g&&a.source==c.source&&a.global==c.global&&a.multiline==c.multiline&&a.ignoreCase==c.ignoreCase;if(e!="object")return false;if(a._chain)a=a._wrapped;if(c._chain)c=c._wrapped;if(b.isFunction(a.isEqual))return a.isEqual(c);for(e=d.length;e--;)if(d[e]==a)return true;d.push(a);e=0;f=true;if(a.length===+a.length||c.length===+c.length){if(e=a.length,f=e==c.length)for(;e--;)if(!(f=e in a==e in c&&q(a[e],c[e],d)))break}else{for(var h in a)if(l.call(a,h)&&(e++,!(f=l.call(c,h)&&q(a[h],c[h],d))))break;if(f){for(h in c)if(l.call(c,
10 | h)&&!e--)break;f=!e}}d.pop();return f}var r=this,F=r._,n={},k=Array.prototype,o=Object.prototype,i=k.slice,G=k.unshift,u=o.toString,l=o.hasOwnProperty,v=k.forEach,w=k.map,x=k.reduce,y=k.reduceRight,z=k.filter,A=k.every,B=k.some,p=k.indexOf,C=k.lastIndexOf,o=Array.isArray,H=Object.keys,s=Function.prototype.bind,b=function(a){return new m(a)};typeof module!=="undefined"&&module.exports?(module.exports=b,b._=b):r._=b;b.VERSION="1.2.0";var j=b.each=b.forEach=function(a,c,b){if(a!=null)if(v&&a.forEach===
11 | v)a.forEach(c,b);else if(a.length===+a.length)for(var e=0,f=a.length;e<f;e++){if(e in a&&c.call(b,a[e],e,a)===n)break}else for(e in a)if(l.call(a,e)&&c.call(b,a[e],e,a)===n)break};b.map=function(a,c,b){var e=[];if(a==null)return e;if(w&&a.map===w)return a.map(c,b);j(a,function(a,g,h){e[e.length]=c.call(b,a,g,h)});return e};b.reduce=b.foldl=b.inject=function(a,c,d,e){var f=d!==void 0;a==null&&(a=[]);if(x&&a.reduce===x)return e&&(c=b.bind(c,e)),f?a.reduce(c,d):a.reduce(c);j(a,function(a,b,i){f?d=c.call(e,
12 | d,a,b,i):(d=a,f=true)});if(!f)throw new TypeError("Reduce of empty array with no initial value");return d};b.reduceRight=b.foldr=function(a,c,d,e){a==null&&(a=[]);if(y&&a.reduceRight===y)return e&&(c=b.bind(c,e)),d!==void 0?a.reduceRight(c,d):a.reduceRight(c);a=(b.isArray(a)?a.slice():b.toArray(a)).reverse();return b.reduce(a,c,d,e)};b.find=b.detect=function(a,c,b){var e;D(a,function(a,g,h){if(c.call(b,a,g,h))return e=a,true});return e};b.filter=b.select=function(a,c,b){var e=[];if(a==null)return e;
13 | if(z&&a.filter===z)return a.filter(c,b);j(a,function(a,g,h){c.call(b,a,g,h)&&(e[e.length]=a)});return e};b.reject=function(a,c,b){var e=[];if(a==null)return e;j(a,function(a,g,h){c.call(b,a,g,h)||(e[e.length]=a)});return e};b.every=b.all=function(a,c,b){var e=true;if(a==null)return e;if(A&&a.every===A)return a.every(c,b);j(a,function(a,g,h){if(!(e=e&&c.call(b,a,g,h)))return n});return e};var D=b.some=b.any=function(a,c,d){var c=c||b.identity,e=false;if(a==null)return e;if(B&&a.some===B)return a.some(c,
14 | d);j(a,function(a,b,h){if(e|=c.call(d,a,b,h))return n});return!!e};b.include=b.contains=function(a,c){var b=false;if(a==null)return b;if(p&&a.indexOf===p)return a.indexOf(c)!=-1;D(a,function(a){if(b=a===c)return true});return b};b.invoke=function(a,c){var d=i.call(arguments,2);return b.map(a,function(a){return(c.call?c||a:a[c]).apply(a,d)})};b.pluck=function(a,c){return b.map(a,function(a){return a[c]})};b.max=function(a,c,d){if(!c&&b.isArray(a))return Math.max.apply(Math,a);if(!c&&b.isEmpty(a))return-Infinity;
15 | var e={computed:-Infinity};j(a,function(a,b,h){b=c?c.call(d,a,b,h):a;b>=e.computed&&(e={value:a,computed:b})});return e.value};b.min=function(a,c,d){if(!c&&b.isArray(a))return Math.min.apply(Math,a);if(!c&&b.isEmpty(a))return Infinity;var e={computed:Infinity};j(a,function(a,b,h){b=c?c.call(d,a,b,h):a;b<e.computed&&(e={value:a,computed:b})});return e.value};b.shuffle=function(a){var c=[],b;j(a,function(a,f){f==0?c[0]=a:(b=Math.floor(Math.random()*(f+1)),c[f]=c[b],c[b]=a)});return c};b.sortBy=function(a,
16 | c,d){return b.pluck(b.map(a,function(a,b,g){return{value:a,criteria:c.call(d,a,b,g)}}).sort(function(a,b){var c=a.criteria,d=b.criteria;return c<d?-1:c>d?1:0}),"value")};b.groupBy=function(a,b){var d={};j(a,function(a,f){var g=b(a,f);(d[g]||(d[g]=[])).push(a)});return d};b.sortedIndex=function(a,c,d){d||(d=b.identity);for(var e=0,f=a.length;e<f;){var g=e+f>>1;d(a[g])<d(c)?e=g+1:f=g}return e};b.toArray=function(a){return!a?[]:a.toArray?a.toArray():b.isArray(a)?i.call(a):b.isArguments(a)?i.call(a):
17 | b.values(a)};b.size=function(a){return b.toArray(a).length};b.first=b.head=function(a,b,d){return b!=null&&!d?i.call(a,0,b):a[0]};b.initial=function(a,b,d){return i.call(a,0,a.length-(b==null||d?1:b))};b.last=function(a,b,d){return b!=null&&!d?i.call(a,a.length-b):a[a.length-1]};b.rest=b.tail=function(a,b,d){return i.call(a,b==null||d?1:b)};b.compact=function(a){return b.filter(a,function(a){return!!a})};b.flatten=function(a){return b.reduce(a,function(a,d){if(b.isArray(d))return a.concat(b.flatten(d));
18 | a[a.length]=d;return a},[])};b.without=function(a){return b.difference(a,i.call(arguments,1))};b.uniq=b.unique=function(a,c,d){var d=d?b.map(a,d):a,e=[];b.reduce(d,function(d,g,h){if(0==h||(c===true?b.last(d)!=g:!b.include(d,g)))d[d.length]=g,e[e.length]=a[h];return d},[]);return e};b.union=function(){return b.uniq(b.flatten(arguments))};b.intersection=b.intersect=function(a){var c=i.call(arguments,1);return b.filter(b.uniq(a),function(a){return b.every(c,function(c){return b.indexOf(c,a)>=0})})};
19 | b.difference=function(a,c){return b.filter(a,function(a){return!b.include(c,a)})};b.zip=function(){for(var a=i.call(arguments),c=b.max(b.pluck(a,"length")),d=Array(c),e=0;e<c;e++)d[e]=b.pluck(a,""+e);return d};b.indexOf=function(a,c,d){if(a==null)return-1;var e;if(d)return d=b.sortedIndex(a,c),a[d]===c?d:-1;if(p&&a.indexOf===p)return a.indexOf(c);for(d=0,e=a.length;d<e;d++)if(a[d]===c)return d;return-1};b.lastIndexOf=function(a,b){if(a==null)return-1;if(C&&a.lastIndexOf===C)return a.lastIndexOf(b);
20 | for(var d=a.length;d--;)if(a[d]===b)return d;return-1};b.range=function(a,b,d){arguments.length<=1&&(b=a||0,a=0);for(var d=arguments[2]||1,e=Math.max(Math.ceil((b-a)/d),0),f=0,g=Array(e);f<e;)g[f++]=a,a+=d;return g};b.bind=function(a,b){if(a.bind===s&&s)return s.apply(a,i.call(arguments,1));var d=i.call(arguments,2);return function(){return a.apply(b,d.concat(i.call(arguments)))}};b.bindAll=function(a){var c=i.call(arguments,1);c.length==0&&(c=b.functions(a));j(c,function(c){a[c]=b.bind(a[c],a)});
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  1 | /*
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  3 |  (c) 2010-2011 AngularJS http://angularjs.org
  4 |  License: MIT
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