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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 (['866', 'ansi_x3.4-1968', 'arabic', 'ascii', 'asmo-708', 'big5', 'big5-hkscs', 'chinese', 'cn-big5', 'cp1250', 'cp1251', 'cp1252', 'cp1253', 'cp1254', 'cp1255', 'cp1256', 'cp1257', 'cp1258', 'cp819', 'cp866', 'csbig5', 'cseuckr', 'cseucpkdfmtjapanese', 'csgb2312', 'csibm866', 'csiso2022jp', 'csiso2022kr', 'csiso58gb231280', 'csiso88596e', 'csiso88596i', 'csiso88598e', 'csiso88598i', 'csisolatin1', 'csisolatin2', 'csisolatin3', 'csisolatin4', 'csisolatin5', 'csisolatin6', 'csisolatin9', 'csisolatinarabic', 'csisolatincyrillic', 'csisolatingreek', 'csisolatinhebrew', 'cskoi8r', 'csksc56011987', 'csmacintosh', 'csshiftjis', 'cyrillic', 'dos-874', 'ecma-114', 'ecma-118', 'elot_928', 'euc-jp', 'euc-kr', 'gb18030', 'gb2312', 'gb_2312', 'gb_2312-80', 'gbk', 'greek', 'greek8', 'hebrew', 'hz-gb-2312', 'ibm819', 'ibm866', 'iso-2022-cn', 'iso-2022-cn-ext', 'iso-2022-jp', 'iso-2022-kr', 'iso88591', 'iso_8859-1', 'iso-8859-1', 'iso8859-1', 'iso885910', 'iso-8859-10', 'iso8859-10', 'iso885911', 'iso-8859-11', 'iso8859-11', 'iso_8859-1:1987', 'iso885913', 'iso-8859-13', 'iso8859-13', 'iso885914', 'iso-8859-14', 'iso8859-14', 'iso885915', 'iso-8859-15', 'iso8859-15', 'iso-8859-16', 'iso88592', 'iso_8859-2', 'iso-8859-2', 'iso8859-2', 'iso_8859-2:1987', 'iso88593', 'iso_8859-3', 'iso-8859-3', 'iso8859-3', 'iso_8859-3:1988', 'iso88594', 'iso_8859-4', 'iso-8859-4', 'iso8859-4', 'iso_8859-4:1988', 'iso88595', 'iso_8859-5', 'iso-8859-5', 'iso_8859-5:1988', 'iso88596', 'iso_8859-6', 'iso-8859-6', 'iso8859-6', 'iso_8859-6:1987', 'iso-8859-6-e', 'iso-8859-6-i', 'iso88597', 'iso_8859-7', 'iso-8859-7', 'iso8859-7', 'iso_8859-7:1987', 'iso88598', 'iso_8859-8', 'iso-8859-8', 'iso8859-8', 'iso_8859-8:1988', 'iso-8859-8-e', 'iso-8859-8i', 'iso-8859-8-i', 'iso88599', 'iso_8859-9', 'iso-8859-9', 'iso8859-9', 'iso_8859-9:1989', 'iso-ir-100', 'iso-ir-101', 'iso-ir-109', 'iso-ir-110', 'iso-ir-126', 'iso-ir-127', 'iso-ir-138', 'iso-ir-144', 'iso-ir-148', 'iso-ir-149', 'iso-ir-157', 'iso-ir-58', 'koi', 'koi8', 'koi8_r', 'koi8-r', 'koi8-u', 'korean', 'ksc5601', 'ksc_5601', 'ks_c_5601-1987', 'ks_c_5601-1989', 'l1', 'l2', 'l3', 'l4', 'l5', 'l6', 'l9', 'latin1', 'latin2', 'latin3', 'latin4', 'latin5', 'latin6', 'latin9', 'logical', 'mac', 'macintosh', 'ms_kanji', 'replacement', 'shift_jis', 'shift-jis', 'sjis', 'sun_eu_greek', 'tis-620', 'unicode-1-1-utf-8', 'us-ascii', 'utf-16', 'utf-16be', 'utf-16le', 'utf8', 'utf-8', 'visual', 'windows-1250', 'windows-1251', 'windows-1252', 'windows-1253', 'windows-1254', 'windows-1255', 'windows-1256', 'windows-1257', 'windows-1258', 'windows-31j', 'windows-874', 'windows-949', 'x-cp1250', 'x-cp1251', 'x-cp1252', 'x-cp1253', 'x-cp1254', 'x-cp1255', 'x-cp1256', 'x-cp1257', 'x-cp1258', 'x-euc-jp', 'x-gbk', 'x-mac-cyrillic', 'x-mac-roman', 'x-mac-ukrainian', 'x-sjis', 'x-user-defined', 'x-x-big5'].indexOf(match[1].toLowerCase()) >= 0 ) {
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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