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author | Nik Nyby <nikolas@gnu.org> | 2015-01-17 17:12:36 -0500 |
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committer | Nik Nyby <nikolas@gnu.org> | 2015-01-17 17:12:36 -0500 |
commit | ada88090ead2c3b9d0804794c5f20f9b24d1c2b1 (patch) | |
tree | 2838a7eee6c5d74094216acebd86915e0ea1de42 /lib/http_observer/stream_loader.js | |
download | librejsxul-ada88090ead2c3b9d0804794c5f20f9b24d1c2b1.tar.lz librejsxul-ada88090ead2c3b9d0804794c5f20f9b24d1c2b1.tar.xz librejsxul-ada88090ead2c3b9d0804794c5f20f9b24d1c2b1.zip |
Import to new git repository
The old repository was using almost 100mb of space because of all
the unnecessary files in the history. So I've imported the code to a
new git repository. Unfortunately the history isn't viewable from this
repository anymore. To see what happened with LibreJS before 2015, see
the old Bazaar repo here: http://bzr.savannah.gnu.org/lh/librejs/
Diffstat (limited to 'lib/http_observer/stream_loader.js')
-rw-r--r-- | lib/http_observer/stream_loader.js | 111 |
1 files changed, 111 insertions, 0 deletions
diff --git a/lib/http_observer/stream_loader.js b/lib/http_observer/stream_loader.js new file mode 100644 index 0000000..db136db --- /dev/null +++ b/lib/http_observer/stream_loader.js @@ -0,0 +1,111 @@ +/** + * GNU LibreJS - A browser add-on to block nonfree nontrivial JavaScript. + * * + * Copyright (C) 2011, 2012, 2013, 2014 Loic J. Duros + * + * This program 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. + * + * This program 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 this program. 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; +}; |