code/components/imago-policy.js

   1 /* coded by Ketmar // Invisible Vector (psyc://ketmar.no-ip.org/~Ketmar)
   2  * Understanding is not required. Only obedience.
   3  *
   4  * This program is free software. It comes without any warranty, to
   5  * the extent permitted by applicable law. You can redistribute it
   6  * and/or modify it under the terms of the Do What The Fuck You Want
   7  * To Public License, Version 2, as published by Sam Hocevar. See
   8  * http://www.wtfpl.net/txt/copying/ for more details.
   9  */
  10 // loading policy
  11 const {utils:Cu, classes:Cc, interfaces:Ci, results:Cr} = Components;
  12
  13 //////////////////////////////////////////////////////////////////////////////
  14 Cu.import("resource://gre/modules/XPCOMUtils.jsm");
  15 Cu.import("resource://gre/modules/Services.jsm");
  16
  17 //////////////////////////////////////////////////////////////////////////////
  18 Cu.import("chrome://k8-imago-code/content/modules/utils.js");
  19 Cu.import(MODULE_PATH+"debuglog.js");
  20 Cu.import(MODULE_PATH+"prefs.js");
  21
  22
  23 //////////////////////////////////////////////////////////////////////////////
  24 function Policy () {
  25   // will be called on creating new component
  26   //conlog("IMAGO POLICY ctor!");
  27 }
  28
  29 Policy.prototype = {
  30   classDescription: "Imago Policy",
  31   classID: Components.ID("{085ef727-7222-4ad7-8fe9-653f73d6ee2f}"),
  32   contractID: "@ketmar.no-ip.org/k8imago-policy;1",
  33   _xpcom_categories: [{
  34     category: "content-policy",
  35     entry: "imago-policy",
  36   }],
  37
  38   QueryInterface: XPCOMUtils.generateQI([Ci.nsIContentPolicy, Ci.nsIFactory]),
  39
  40   createInstance: function (outer, iid) {
  41     conlog("Policy: createInstance");
  42     if (outer) throw Cr.NS_ERROR_NO_AGGREGATION;
  43     return this.QueryInterface(iid);
  44   },
  45
  46   // nsIContentPolicy interface implementation
  47   shouldLoad: function (contentType, contentLocation, requestOrigin, node, mimeTypeGuess, extra) {
  48     if (contentType !== Ci.nsIContentPolicy.TYPE_IMAGE) return Ci.nsIContentPolicy.ACCEPT;
  49     /*
  50     conlog("shouldLoad: ", contentType, " ",
  51            (contentLocation ? contentLocation.spec : "null"), " ",
  52            (requestOrigin ? requestOrigin.spec : "null"), " ",
  53            node, " ",
  54            mimeTypeGuess, " <", contentType !== Ci.nsIContentPolicy.TYPE_IMAGE, ">");
  55     */
  56     if (!contentLocation) return Ci.nsIContentPolicy.ACCEPT; // the thing that should not be
  57     try {
  58       //conlog("shouldLoad000: ", contentLocation.spec, " ", contentLocation);
  59       //if (typeof(contentLocation.host) !== "string") return Ci.nsIContentPolicy.ACCEPT; // some strange things
  60       //conlog("shouldLoad001: ", contentLocation.host);
  61       if (BLACK_HOSTS[contentLocation.host]) {
  62         //TODO: list priorities
  63         if (WHITE_HOSTS[contentLocation.host]) return Ci.nsIContentPolicy.ACCEPT;
  64         conlog("REJECTED BLACK: ", contentLocation.host);
  65         return Ci.nsIContentPolicy.REJECT;
  66       }
  67     } catch (e) {
  68       //conlog("************");
  69       //Cu.reportError(e);
  70     }
  71     //conlog("++++++++++++");
  72     return Ci.nsIContentPolicy.ACCEPT;
  73   },
  74
  75   shouldProcess: function (contentType, contentLocation, requestOrigin, node, mimeTypeGuess, extra) {
  76     /*
  77     conlog("shouldProcess: ", contentType, " ",
  78                             (contentLocation ? contentLocation.spec : "null"), " ",
  79                             (requestOrigin ? requestOrigin.spec : "null"), " ",
  80                             node, " ",
  81                             mimeTypeGuess);
  82     */
  83     return Ci.nsIContentPolicy.ACCEPT;
  84   },
  85
  86 /*
  87   _initialized: false,
  88
  89   dynreg: function () {
  90     if (this._initialized) return;
  91     this._initialized = true;
  92
  93     conlog("initializing Imago component...");
  94     let registrar = Components.manager.QueryInterface(Ci.nsIComponentRegistrar);
  95     registrar.registerFactory(this.classID, this.classDescription, this.contractID, this);
  96
  97     let catMan = Cc["@mozilla.org/categorymanager;1"].getService(Ci.nsICategoryManager);
  98     for each (let xpc in this._xpcom_categories) {
  99       //catMan.addCategoryEntry(xpc.category, this.contractID, this.contractID, false, true);
 100       catMan.addCategoryEntry(xpc.category, xpc.entry, this.contractID, false, true);
 101     }
 102   },
 103 */
 104 };
 105
 106
 107 //////////////////////////////////////////////////////////////////////////////
 108 // dynamic registration: change above to `let Policy = {}`
 109 //Policy.dynreg();
 110 // manifest registration
 111 let NSGetFactory = XPCOMUtils.generateNSGetFactory([Policy]);
 112 //conlog("IMAGO POLICY1");