Create AutodlFilesDownloader.js

Version in autodl-community has error in line 28 (autodl-community/autodl-rutorrent#9)

AutodlFilesDownloader.js

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+/* ***** BEGIN LICENSE BLOCK *****
+ * Version: MPL 1.1
+ *
+ * The contents of this file are subject to the Mozilla Public License Version
+ * 1.1 (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+ * for the specific language governing rights and limitations under the
+ * License.
+ *
+ * The Original Code is IRC Auto Downloader.
+ *
+ * The Initial Developer of the Original Code is
+ * David Nilsson.
+ * Portions created by the Initial Developer are Copyright (C) 2010, 2011
+ * the Initial Developer. All Rights Reserved.
+ *
+ * Contributor(s):
+ *
+ * ***** END LICENSE BLOCK ***** */
+
+function autodl_ajax(obj)
+{
+	// IE8 caches all Ajax requests!
+//	if ($.browser.msie)
+$.browser={ msie: ( navigator.appName == 'Microsoft Internet Explorer') ? true : false }
+		obj.cache = false;
+
+	$.ajax(obj);
+}
+
+function getAjaxErrorString(status, ex)
+{
+	var msg = "AJAX error";
+
+	if (status)
+		msg += ", status: " + status;
+	if (ex)
+		msg += ", " + formatException(ex);
+
+	return msg;
+}
+
+/**
+ * @param pluginUrl	URL of plugin directory (plugin.path), ending in a slash.
+ */
+function AutodlFilesDownloader(pluginUrl)
+{
+	this.pluginUrl = pluginUrl;
+	this.handler = null;
+	this.isDownloading = false;
+	this.files =
+	{
+		config: "",
+		trackers: []
+	};
+}
+
+AutodlFilesDownloader.prototype.getConfigFile =
+function()
+{
+	return this.files.config;
+}
+
+AutodlFilesDownloader.prototype.setConfigFile =
+function(config)
+{
+	this.files.config = config;
+}
+
+AutodlFilesDownloader.prototype.getTrackers =
+function()
+{
+	return this.files.trackers;
+}
+
+AutodlFilesDownloader.prototype._notifyHandler =
+function(errorMessage)
+{
+	try
+	{
+		this.filenames = null;
+		this.isDownloading = false;
+		var handler = this.handler;
+		this.handler = null;
+		try
+		{
+			handler(errorMessage);
+		}
+		catch (ex)
+		{
+			log("AutodlFilesDownloader._notifyHandler: handler: " + formatException(ex));
+		}
+	}
+	catch (ex)
+	{
+		log("AutodlFilesDownloader._notifyHandler: " + formatException(ex));
+	}
+}
+
+// Downloads the autodl.cfg file and all tracker files
+AutodlFilesDownloader.prototype.downloadAllFiles =
+function(handler)
+{
+	if (this.isDownloading)
+		throw "AutodlFilesDownloader.downloadAllFiles: Already downloading!";
+
+	try
+	{
+		this.handler = handler;
+
+		var this_ = this;
+		autodl_ajax(
+		{
+			url: this.pluginUrl + "getfiles.php",
+			type: "GET",
+			dataType: "json",
+			success: function(data, status) { this_._onGetfiles(data); },
+			error: function(xhr, status, ex)
+			{
+				this_._notifyHandler("Could not get files listing: " + getAjaxErrorString(status, ex));
+			}
+		});
+	}
+	catch (ex)
+	{
+		this._notifyHandler("AutodlFilesDownloader.downloadAllFiles: " + formatException(ex));
+	}
+}
+
+AutodlFilesDownloader.prototype._onGetfiles =
+function(data)
+{
+	try
+	{
+		if (data.error)
+			return this._notifyHandler("Error getting files listing: " + data.error);
+
+		this.files.trackers = [];
+		this._downloadFiles(data.files);
+	}
+	catch (ex)
+	{
+		this._notifyHandler("AutodlFilesDownloader._onGetfiles: " + formatException(ex));
+	}
+}
+
+// Downloads only the autodl.cfg file
+AutodlFilesDownloader.prototype.downloadConfig =
+function(handler)
+{
+	if (this.isDownloading)
+		throw "AutodlFilesDownloader.downloadConfig: Already downloading!";
+
+	try
+	{
+		this.handler = handler;
+		this._downloadFiles(['autodl.cfg']);
+	}
+	catch (ex)
+	{
+		this._notifyHandler("AutodlFilesDownloader.downloadAllFiles: " + formatException(ex));
+	}
+}
+
+AutodlFilesDownloader.prototype._downloadFiles =
+function(aryFiles)
+{
+	try
+	{
+		this.filenames = aryFiles || [];
+		this.filenameIndex = 0;
+		this._getNextFile();
+	}
+	catch (ex)
+	{
+		this._notifyHandler("AutodlFilesDownloader._downloadFiles: " + formatException(ex));
+	}
+}
+
+AutodlFilesDownloader.prototype._getNextFile =
+function()
+{
+	try
+	{
+		if (this.filenameIndex >= this.filenames.length)
+			return this._notifyHandler("");
+		var filename = this.filenames[this.filenameIndex++];
+
+		var dataType;
+		if (filename.match(/\.tracker$/))
+			dataType = "xml";
+		else
+			dataType = "text";
+
+		var this_ = this;
+		autodl_ajax(
+		{
+			url: this.pluginUrl + "getfile.php",
+			data: [{name: 'file', value: filename}],
+			type: "GET",
+			dataType: dataType,
+			success: function(data, status) { this_._gotFileData(data, filename); },
+			error: function(xhr, status, ex)
+			{
+				this_._notifyHandler("Could not read file " + filename + ": " + getAjaxErrorString(status, ex));
+			}
+		});
+	}
+	catch (ex)
+	{
+		this._notifyHandler("AutodlFilesDownloader._getNextFile: " + formatException(ex));
+	}
+}
+
+AutodlFilesDownloader.prototype._gotFileData =
+function(data, filename)
+{
+	try
+	{
+		if (filename === 'autodl.cfg')
+			this.files.config = data;
+		else if (filename.match(/\.tracker$/))
+			this.files.trackers.push(data);
+		else
+			log("Got unknown file " + filename);
+
+		this._getNextFile();
+	}
+	catch (ex)
+	{
+		this._notifyHandler("AutodlFilesDownloader._gotFileData: " + formatException(ex));
+	}
+}