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/**
* GNU LibreJS - A browser add-on to block nonfree nontrivial JavaScript.
* *
* Copyright (C) 2011, 2012, 2013, 2014 Loic J. Duros
* Copyright (C) 2014, 2015 Nik Nyby
*
* This file is part of GNU LibreJS.
*
* GNU LibreJS is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* GNU LibreJS is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with GNU LibreJS. If not, see <http://www.gnu.org/licenses/>.
*/
var {Cc, Ci, Cu, Cm, Cr} = require("chrome");
const processResponse = require('http_observer/process_response');
var StreamLoader = function() {
this.loader = null;
this.listener = null;
this.originalListener = null;
};
StreamLoader.prototype.setOriginalListener = function(listener) {
this.originalListener = listener;
};
StreamLoader.prototype.init = function() {
try {
var that = this;
this.listener = new StreamListener();
this.listener.callback = function (loader, context, status, data) {
//console.debug("here is the data", data);
var responseInfo = {'request': loader.channel,
'context': context,
'statusCode': status,
'receivedData': data};
var responseHandler = processResponse.ProcessResponse(that.originalListener, responseInfo);
responseHandler.processAllTypes();
that.destroy();
};
this.loader = Cc["@mozilla.org/network/unichar-stream-loader;1"].
createInstance(Ci.nsIUnicharStreamLoader);
this.loader.init(this.listener);
} catch (e) {
console.debug(e);
}
};
StreamLoader.prototype.destroy = function () {
this.loader = null;
this.listener = null;
};
var getRegexForContentType = function (contentType) {
if (/xhtml/i.test(contentType)) {
return /<\?[^>]*?encoding=(?:["']*)([^"'\s\?>]+)(?:["']*)/i;
}
// return the regular html regexp for anything else.
return /<meta[^>]*?charset=(?:["']*)([^"'\s>]+)(?:["']*)/i;
};
var StreamListener = function() {};
StreamListener.prototype.QueryInterface = function listener_qi(iid) {
if (iid.equals(Ci.nsISupports) ||
iid.equals(Ci.nsIUnicharStreamLoaderObserver)) {
return this;
}
throw Cr.NS_ERROR_NO_INTERFACE;
};
StreamListener.prototype.onStreamComplete = function onStreamComplete(
loader, context, status, data) {
this.callback(loader, context, status, data);
};
StreamListener.prototype.onDetermineCharset = function onDetermineCharset(
loader, context, data) {
var match, regex;
if (loader.channel.contentCharset !== undefined &&
loader.channel.contentCharset !== ""
) {
return loader.channel.contentCharset;
} else {
match = getRegexForContentType(loader.channel.contentType).exec(data);
if (match) {
loader.channel.contentCharset = match[1];
return match[1];
} else {
return "UTF-8";
}
}
};
exports.streamLoader = function () {
var l = new StreamLoader();
l.init();
return l;
};
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