Initial Revision

Author: Olivier Poitrey

.travis

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+nguage: node_js
+node_js:
+  - 0.8

LICENSE

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+Copyright (c) 2013 Olivier Poitrey <[email protected]>
+ 
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is furnished
+to do so, subject to the following conditions:
+ 
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+ 
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
+

README.md

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+# VAST Javascript Client
+
+## Usage
+
+``` javascript
+DMVASTClient.get(VASTURL, function(response)
+{
+    if (response)
+    {
+        for (var adIdx = 0, adLen = VASTResponse.ads.length; adIdx < adLen; adIdx++)
+        {
+            var ad = VASTResponse.ads[adIdx];
+            for (var creaIdx = 0, creaLen = ad.creatives.length; creaIdx < creaLen; creaIdx++)
+            {
+                var linearCreative = ad.creatives[creaIdx];
+                if (linearCreative.type != "linear") continue;
+
+                for (var mfIdx = 0, mfLen = linearCreative.mediaFiles.length; mfIdx < mfLen; mfIdx++)
+                {
+                    var mediaFile = linearCreative.mediaFiles[mfIdx];
+                    if (mediaFile.mimeType != "video/mp4") continue;
+
+                    player.vastTracker = new DMVASTTracker(ad, linearCreative);
+                    player.vastTracker.on('clickthrough', function(url)
+                    {
+                        document.location.href = url;
+                    });
+                    player.on('canplay', function() {self.vastTracker.load();});
+                    player.on('timeupdate', function() {self.vastTracker.setProgress(self.currentTime);});
+                    player.on('play', function() {self.vastTracker.setPaused(false);});
+                    player.on('pause', function() {self.vastTracker.setPaused(true);});
+
+                    player.video.href = mediaFile.fileURL;
+                    // put player in ad mode
+                    break;
+                }
+
+                if (player.vastTracker)
+                {
+                    break;
+                }
+            }
+
+            if (player.vastTracker)
+            {
+                break;
+            }
+            else
+            {
+                // Inform ad server we can't find suitable media file for this ad
+                DMVASTUtil.track(ad.errorURLTemplates, {ERRORCODE: 403});
+            }
+        }
+    }
+
+    if (!self.vastTracker)
+    {
+        // No pre-roll, start video
+    }
+
+});
+```

package.json

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+{
+    "name": "vast-client-js",
+    "author": "Olivier Poitrey <[email protected]>",
+    "version": "0.0.1",
+    "description": "Javascript VAST Client",
+    "keywords": ["vast", "ad", "advertising", "iab", "in-stream", "video"],
+    "repository": {"type": "git", "url": "https://github.com/rs/vast-client-js"},
+    "licenses": [{"type": "MIT", "url": "https://github.com/rs/vast-client-js/raw/master/LICENSE"}],
+    "engines": {"node": "~0.8.19"},
+    "scripts":
+    {
+        "test": "mocha --compilers coffee:coffee-script --reporter spec test/*.coffee",
+        "bundle": "browserify -c 'coffee -scb' src/client.coffee src/tracker.coffee -o vast-client.js"
+    },
+    "devDependencies":
+    {
+        "mocha": "*",
+        "should": "*",
+        "xmldom": "*"
+    },
+    "dependencies":
+    {
+        "coffee-script": "~1.2.0",
+        "browserify": "*"
+    }
+}

src/ad.coffee

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+class VASTAd
+    constructor: ->
+        @errorURLTemplates = []
+        @impressionURLTemplates = []
+        @creatives = []
+
+module.exports = VASTAd

src/client.coffee

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+VASTParser = require './parser.coffee'
+
+class VASTClient
+    @totalCalls: 0 # TODO: make this persistent across requests
+    @cappingFreeLunch: 0
+    @cappingMinimumTimeInterval: 0
+    @timeout: 0
+
+    @get: (url, cb) ->
+        # TODO handle timeout
+        @totalCalls++
+
+        if @cappingFreeLunch >= @totalCalls
+            cb(null)
+            return
+
+        if new Date().getTime() - @lastSuccessfulAd < @cappingMinimumTimeInterval
+            cb(null)
+            return
+
+        VASTParser.get url, (response) ->
+            @lastSuccessfulAd = new Date().getTime() # TODO: make this persistent across requests
+            cb(response)
+
+module.export = VASTClient
+
+if window?
+    window.DMVASTClient = VASTClient

src/creative.coffee

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+class VASTCreative
+    constructor: ->
+        @trackingEvents = []
+
+class VASTCreativeLinear extends VASTCreative
+    constructor: ->
+        super
+        @type = "linear"
+        @duration = 0
+        @skipDelay = -1
+        @mediaFiles = []
+        @videoClickThroughURLTemplate = null
+        @videoClickTrackingURLTemplate = null
+
+class VASTCreativeNonLinear extends VASTCreative
+
+
+class VASTCreativeCompanion extends VASTCreative
+
+module.exports =
+    VASTCreativeLinear: VASTCreativeLinear
+    VASTCreativeNonLinear: VASTCreativeNonLinear
+    VASTCreativeCompanion: VASTCreativeCompanion

src/mediafile.coffee

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+class VASTMediaFile
+    constructor: ->
+        @fileURL = null
+        @deliveryType = "progressive"
+        @mimeType = null
+        @codec = null
+        @bitrate = 0
+        @minBitrate = 0
+        @maxBitrate = 0
+        @width = 0
+        @height = 0
+
+module.exports = VASTMediaFile