babolivier
/
rsf-censorship-detector
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FIRST (hi imma 2010)

Brendan Abolivier 8 anos atrás
commit
6bbb014bf2
4 arquivos alterados com 171 adições e 0 exclusões
Visão dividida Mostrar estatísticas do Diff
  1. BIN
      icon.png
  2. 16
    0
      manifest.json
  3. 37
    0
      popup.html
  4. 118
    0
      popup.js

BIN
icon.png Ver arquivo


+ 16
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manifest.json Ver arquivo 

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+{
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+  "manifest_version": 2,
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+
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+  "name": "Collateral Freedom",
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+  "description": "kthxbye",
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+  "version": "1.0",
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+
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+  "browser_action": {
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+    "default_icon": "icon.png",
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+    "default_popup": "popup.html"
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+  },
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+  "permissions": [
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+    "activeTab",
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+    "https://ajax.googleapis.com/"
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+  ]
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+}

+ 37
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popup.html Ver arquivo 

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+<!doctype html>
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+<!--
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+ This page is shown when the extension button is clicked, because the
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+ "browser_action" field in manifest.json contains the "default_popup" key with
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+ value "popup.html".
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+ -->
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+<html>
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+  <head>
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+    <title>Getting Started Extension's Popup</title>
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+    <style>
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+      body {
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+        font-family: "Segoe UI", "Lucida Grande", Tahoma, sans-serif;
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+        font-size: 100%;
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+      }
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+      #status {
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+        /* avoid an excessively wide status text */
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+        white-space: pre;
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+        text-overflow: ellipsis;
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+        overflow: hidden;
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+        max-width: 400px;
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+      }
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+    </style>
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+
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+    <!--
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+      - JavaScript and HTML must be in separate files: see our Content Security
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+      - Policy documentation[1] for details and explanation.
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+      -
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+      - [1]: https://developer.chrome.com/extensions/contentSecurityPolicy
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+     -->
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+    <script src="popup.js"></script>
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+  </head>
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+  <body>
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+    <div id="status"></div>
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+    <img id="image-result" hidden>
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+  </body>
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+</html>
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+

+ 118
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popup.js Ver arquivo 

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+// Copyright (c) 2014 The Chromium Authors. All rights reserved.
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+// Use of this source code is governed by a BSD-style license that can be
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+// found in the LICENSE file.
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+
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+/**
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+ * Get the current URL.
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+ *
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+ * @param {function(string)} callback - called when the URL of the current tab
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+ *   is found.
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+ */
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+function getCurrentTabUrl(callback) {
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+  // Query filter to be passed to chrome.tabs.query - see
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+  // https://developer.chrome.com/extensions/tabs#method-query
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+  var queryInfo = {
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+    active: true,
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+    currentWindow: true
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+  };
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+
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+  chrome.tabs.query(queryInfo, function(tabs) {
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+    // chrome.tabs.query invokes the callback with a list of tabs that match the
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+    // query. When the popup is opened, there is certainly a window and at least
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+    // one tab, so we can safely assume that |tabs| is a non-empty array.
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+    // A window can only have one active tab at a time, so the array consists of
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+    // exactly one tab.
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+    var tab = tabs[0];
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+
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+    // A tab is a plain object that provides information about the tab.
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+    // See https://developer.chrome.com/extensions/tabs#type-Tab
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+    var url = tab.url;
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+
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+    // tab.url is only available if the "activeTab" permission is declared.
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+    // If you want to see the URL of other tabs (e.g. after removing active:true
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+    // from |queryInfo|), then the "tabs" permission is required to see their
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+    // "url" properties.
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+    console.assert(typeof url == 'string', 'tab.url should be a string');
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+
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+    callback(url);
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+  });
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+
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+  // Most methods of the Chrome extension APIs are asynchronous. This means that
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+  // you CANNOT do something like this:
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+  //
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+  // var url;
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+  // chrome.tabs.query(queryInfo, function(tabs) {
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+  //   url = tabs[0].url;
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+  // });
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+  // alert(url); // Shows "undefined", because chrome.tabs.query is async.
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+}
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+
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+/**
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+ * @param {string} searchTerm - Search term for Google Image search.
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+ * @param {function(string,number,number)} callback - Called when an image has
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+ *   been found. The callback gets the URL, width and height of the image.
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+ * @param {function(string)} errorCallback - Called when the image is not found.
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+ *   The callback gets a string that describes the failure reason.
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+ */
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+function getImageUrl(searchTerm, callback, errorCallback) {
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+  // Google image search - 100 searches per day.
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+  // https://developers.google.com/image-search/
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+  var searchUrl = 'https://ajax.googleapis.com/ajax/services/search/images' +
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+    '?v=1.0&q=' + encodeURIComponent(searchTerm);
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+  var x = new XMLHttpRequest();
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+  x.open('GET', searchUrl);
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+  // The Google image search API responds with JSON, so let Chrome parse it.
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+  x.responseType = 'json';
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+  x.onload = function() {
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+    // Parse and process the response from Google Image Search.
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+    var response = x.response;
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+    if (!response || !response.responseData || !response.responseData.results ||
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+        response.responseData.results.length === 0) {
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+      errorCallback('No response from Google Image search!');
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+      return;
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+    }
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+    var firstResult = response.responseData.results[0];
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+    // Take the thumbnail instead of the full image to get an approximately
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+    // consistent image size.
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+    var imageUrl = firstResult.tbUrl;
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+    var width = parseInt(firstResult.tbWidth);
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+    var height = parseInt(firstResult.tbHeight);
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+    console.assert(
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+        typeof imageUrl == 'string' && !isNaN(width) && !isNaN(height),
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+        'Unexpected respose from the Google Image Search API!');
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+    callback(imageUrl, width, height);
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+  };
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+  x.onerror = function() {
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+    errorCallback('Network error.');
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+  };
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+  x.send();
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+}
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+
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+function renderStatus(statusText) {
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+  document.getElementById('status').textContent = statusText;
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+}
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+
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+document.addEventListener('DOMContentLoaded', function() {
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+  getCurrentTabUrl(function(url) {
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+    // Put the image URL in Google search.
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+    renderStatus('Performing Google Image search for ' + url);
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+
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+    getImageUrl(url, function(imageUrl, width, height) {
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+
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+      renderStatus('Search term: ' + url + '\n' +
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+          'Google image search result: ' + imageUrl);
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+      var imageResult = document.getElementById('image-result');
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+      // Explicitly set the width/height to minimize the number of reflows. For
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+      // a single image, this does not matter, but if you're going to embed
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+      // multiple external images in your page, then the absence of width/height
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+      // attributes causes the popup to resize multiple times.
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+      imageResult.width = width;
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+      imageResult.height = height;
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+      imageResult.src = imageUrl;
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+      imageResult.hidden = false;
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+
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+    }, function(errorMessage) {
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+      renderStatus('Cannot display image. ' + errorMessage);
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+    });
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+  });
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+});