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clearurls.js

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+/*
+ * ##################################################################
+ * # Supertyp Provider                                              #
+ * ##################################################################
+ */
+/**
+ * Declare constructor
+ *
+ * @param {String} _name                Provider name
+ * @param {boolean} completeProvider    Set URL Pattern as rule
+ */
+function Provider(_name,_completeProvider=false){
+    var name = name;
+    var urlPattern;
+    var rules = new Array();
+    var exceptions = new Array();
+
+    /**
+     * Add URL pattern.
+     * 
+     * @require urlPatterns as RegExp
+     */
+    this.setURLPattern = function(urlPatterns) {
+        if(_completeProvider){
+            rules.push(urlPattern);
+        }
+
+        urlPattern = new RegExp(urlPatterns, "mgi");
+    };
+
+    /**
+     * Check the url is matching the ProviderURL.
+     * 
+     * @return {String}    ProviderURL as RegExp
+     */    
+    this.matchURL = function(url) {    
+        return !(matchException(url)) && (url.match(urlPattern) != null) && (url.match(urlPattern).length > 0);
+    };
+
+    /**
+     * Add a rule to the rule array.
+     * 
+     * @param String rule   RegExp as string
+     */
+    this.addRule = function(rule) {
+        rules.push(rule);
+    };
+
+    /**
+     * Return all rules as an array.
+     * 
+     * @return Array RegExp strings
+     */
+    this.getRules = function() {
+        return rules;
+    };
+
+    /**
+     * Add a exception to the exceptions array.
+     * 
+     * @param String exception   RegExp as string
+     */
+    this.addException = function(exception) {
+        exceptions.push(exception);
+    };
+
+    /**
+     * Private helper method to check if the url
+     * an exception.
+     * 
+     * @param  {String} url     RegExp as string
+     * @return {boolean}        if matching? true: false
+     */
+    matchException = function(url) {
+        var result = false;
+
+        for (var i = 0; i < exceptions.length; i++) {
+            if(result) { break; }
+            
+            result = (url.match(new RegExp(exceptions[i], "gmi")) != null) && (url.match(new RegExp(exceptions[i], "gmi")).length > 0);          
+        }
+
+        return result;
+    };
+}
+// ##################################################################
+
+/*
+ * ##################################################################
+ * # Amazon Provider                                                #
+ * ##################################################################
+ */
+var amazon = new Provider("Amazon");
+  amazon.setURLPattern('(https:\\/\\/||http:\\/\\/).*(\\.amazon\\.)\\w{2,}\\/.*');
+  amazon.addException('.*(amazon\\.)\\w{2,}(\\/gp\\/).*');
+  amazon.addRule('pf_rd_[a-zA-Z]=[a-zA-Z0-9\\-\\.\\_]*[\\?|&]?');
+  amazon.addRule('qid=[a-zA-Z0-9\\-\\.\\_]*[\\?|&]?');
+  amazon.addRule('sr=[a-zA-Z0-9\\-\\.\\_]*[\\?|&]?');
+  amazon.addRule('srs=[a-zA-Z0-9\\-\\.\\_]*[\\?|&]?');
+  amazon.addRule('.*(amazon-adsystem\\.com)\\/.*');
+  amazon.addRule('.*(adsensecustomsearchads\\.com)\\/.*');
+  amazon.addRule('pd_rd_[a-zA-Z]*=[a-zA-Z0-9\\-\\.\\_]*[\\?|&]?');
+// ##################################################################
+
+/*
+ * ##################################################################
+ * # Google Provider                                                #
+ * ##################################################################
+ */
+var google = new Provider("Google");
+  google.setURLPattern('(https:\\/\\/||http:\\/\\/).*(\\.google\\.)\\w{2,}\\/.*');
+  google.addException('.*(accounts).*');
+  google.addException('(https:\\/\\/||http:\\/\\/).*(googlevideo\\.com)\\/.*');
+  google.addException('(https:\\/\\/||http:\\/\\/).*(youtube\\.)\\w{2,}\\/.*');
+
+  google.addRule('utm_[a-zA-Z]*=[a-zA-Z0-9\\-\\.\\_]*[\\?|&]?');
+  // google.addRule('sa=[a-zA-Z0-9\\-]*[\\?|&]?'); //Must stay in, otherwise links can not be automatically open
+  google.addRule('ved=[a-zA-Z0-9\\-\\.\\_]*[\\?|&]?');
+  google.addRule('bi[a-zA-Z]*=[a-zA-Z0-9\\-\\.\\_]*[\\?|&]?');
+  // google.addRule('client=[a-zA-Z0-9\\-]*[\\?|&]?'); //Must stay in, otherwise translate.google.* do not work
+  google.addRule('gfe_[a-zA-Z]*=[a-zA-Z0-9\\-\\.\\_]*[\\?|&]?');
+  google.addRule('ei=[a-zA-Z0-9\\-\\.\\_]*[\\?|&]?');
+  google.addRule('source=[a-zA-Z0-9\\-\\.\\_]*[\\?|&]?');
+  google.addRule('gs_[a-zA-Z]*=[a-zA-Z0-9\\-\\.\\_]*[\\?|&]?');
+  google.addRule('site=[a-zA-Z0-9\\-\\.\\_]*[\\?|&]?');
+  google.addRule('&\\.[a-zA-Z0-9\\-\\.\\_]*[\\?|&]?');
+  google.addRule('oq=[a-zA-Z0-9\\-\\.\\_]*[\\?|&]?');
+  google.addRule('esrc=[a-zA-Z0-9\\-\\.\\_]*[\\?|&]?');
+  google.addRule('uact=[a-zA-Z0-9\\-\\.\\_]*[\\?|&]?');
+  google.addRule('cd=[a-zA-Z0-9\\-\\.\\_]*[\\?|&]?');
+  google.addRule('cad=[a-zA-Z0-9\\-\\.\\_]*[\\?|&]?');
+  google.addRule('gws_[a-zA-Z]*=[a-zA-Z0-9\\-\\.\\_]*[\\?|&]?');
+  google.addRule('im[a-zA-Z]*=[a-zA-Z0-9\\-\\.\\_]*[\\?|&]?');
+  google.addRule('atyp=[a-zA-Z0-9\\-\\.\\_]*[\\?|&]?');
+  // google.addRule('ct=[a-zA-Z0-9\\-\\.\\_]*[\\?|&]?'); //Must stay in, otherwise links can not be automatically open
+  google.addRule('vet=[a-zA-Z0-9\\-\\.\\_]*[\\?|&]?');
+  google.addRule('zx=[a-zA-Z0-9\\-\\.\\_]*[\\?|&]?');
+  google.addRule('_u=[a-zA-Z0-9\\-\\.\\_]*[\\?|&]?');
+  // google.addRule('v=[a-zA-Z0-9\\-\\.\\_]*[\\?|&]?'); //Must stay in, otherwise youtube do not work
+  google.addRule('je=[a-zA-Z0-9\\-\\.\\_]*[\\?|&]?');
+  google.addRule('[a-zA-Z\\_]*id=[a-zA-Z0-9\\-\\.\\_]*[\\?|&]?');
+// ##################################################################
+
+/*
+ * ##################################################################
+ * # Googlesyndication Provider                                     #
+ * ##################################################################
+ */
+var googlesyndication = new Provider("Googlesyndication",true);
+  googlesyndication.setURLPattern('.*(\\.googlesyndication\\.)\\w{2,}\\/.*');
+// ##################################################################
+
+/*
+ * ##################################################################
+ * # Doubleclick Provider                                           #
+ * ##################################################################
+ */
+var doubleclick = new Provider("Doubleclick", true);
+  doubleclick.setURLPattern('.*(doubleclick\\.net)\\/.*');
+// ##################################################################
+
+/*
+ * ##################################################################
+ * # Urchin Tracking Module Provider                                #
+ * ##################################################################
+ */
+var utm = new Provider("UTM", false);
+  utm.setURLPattern('.*');
+  utm.addRule('utm_[a-zA-Z]*=.*[\\?|&]?');
+// ##################################################################
+
+/**
+ * Helper function which remove the tracking fields
+ * for each provider given as parameter.
+ * 
+ * @param  {Provider} provider      Provider-Object
+ * @param  {webRequest} request     webRequest-Object
+ * @return {Array}                  Array with changes and url fields
+ */
+function removeFieldsFormURL(provider, request)
+{
+    var url = request.url;
+    var rules = provider.getRules();
+    var changes = false;
+
+    if(provider.matchURL(url))
+    {
+        for (var i = 0; i < rules.length; i++) {
+            var bevorReplace = url;
+            
+            url = url.replace(new RegExp(rules[i], "gi"), "");
+
+            if(bevorReplace != url)
+            {
+                console.log("Bevor: "+bevorReplace);
+                console.log("After: "+url);
+                console.log("##################################################################");
+                changes = true;
+            }
+        }
+    }
+
+    return {
+        "changes": changes,
+        "url": url
+    }
+};
+
+/**
+ * Function which called from the webRequest to
+ * remove the tracking fields from the url.
+ * 
+ * @param  {webRequest} request     webRequest-Object
+ * @return {Array}                  redirectUrl or none
+ */
+function clearUrl(request)
+{
+    var result = {
+        "changes": false,
+        "url": ""
+    };
+    var providers = [amazon, google, googlesyndication, doubleclick, utm];
+
+    /*
+     * Call for every provider the removeFieldsFormURL method.
+     */
+    for (var i = 0; i < providers.length; i++) {
+        result = removeFieldsFormURL(providers[i], request);
+
+        /*
+         * Ensure that the function go not into
+         * an loop.
+         */
+        if(result["changes"]){
+            return {
+                redirectUrl: result["url"]
+            }; 
+        }         
+    }
+       
+};
+
+function fetchFromURL()
+{
+    fetch('https://fiddle.jshell.net/robots.txt')
+    .then((response) => response.text().then(yourCallback));
+
+    function yourCallback( retrievedText ) { /* . . . */ }
+}
+
+/**
+ * Call by each Request and checking the url.
+ * 
+ * @type {Array}
+ */
+browser.webRequest.onBeforeRequest.addListener(
+  clearUrl,
+  {urls: ["<all_urls>"]},
+  ["blocking"]
+);

manifest.json

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+{
+
+  "manifest_version": 2,
+  "name": "ClearUrls",
+  "version": "1.0.4.4",
+  "author": "Kevin R., Arne S.",
+
+  "description": "Remove tracking elements form urls.",
+
+  "icons": {
+    "32": "icons/32x32.png",
+    "64": "icons/64x64.png",
+    "128": "icons/128x128.png",
+    "256": "icons/256x256.png",
+    "512": "icons/512x512.png"
+  },
+
+  "permissions": [
+    "webRequest",
+    "<all_urls>",
+    "webRequestBlocking"
+  ],
+
+  "background": {
+    "scripts": ["clearurls.js"]
+  },
+
+  "incognito": "spanning",
+
+  "content_scripts": [
+    {
+      "matches": ["<all_urls>"],
+      "js": [
+          "default.js"
+      ]
+    }
+  ]
+
+}