mirror of
https://github.com/mozilla/gecko-dev.git
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0469a02b25
--HG-- extra : rebase_source : 98337b6a8c07d05e8c961a452dd05a7d75c3c60b
193 lines
6.0 KiB
JavaScript
193 lines
6.0 KiB
JavaScript
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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const Cc = Components.classes;
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const Ci = Components.interfaces;
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const Cr = Components.results;
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const Cu = Components.utils;
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Components.utils.import("resource://gre/modules/XPCOMUtils.jsm");
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function INIProcessorFactory() {
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}
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INIProcessorFactory.prototype = {
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classID: Components.ID("{6ec5f479-8e13-4403-b6ca-fe4c2dca14fd}"),
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QueryInterface : XPCOMUtils.generateQI([Ci.nsIINIParserFactory]),
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createINIParser : function (aINIFile) {
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return new INIProcessor(aINIFile);
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}
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}; // end of INIProcessorFactory implementation
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const MODE_WRONLY = 0x02;
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const MODE_CREATE = 0x08;
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const MODE_TRUNCATE = 0x20;
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// nsIINIParser implementation
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function INIProcessor(aFile) {
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this._iniFile = aFile;
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this._iniData = {};
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this._readFile();
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}
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INIProcessor.prototype = {
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QueryInterface : XPCOMUtils.generateQI([Ci.nsIINIParser, Ci.nsIINIParserWriter]),
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__utf8Converter : null, // UCS2 <--> UTF8 string conversion
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get _utf8Converter() {
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if (!this.__utf8Converter) {
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this.__utf8Converter = Cc["@mozilla.org/intl/scriptableunicodeconverter"].
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createInstance(Ci.nsIScriptableUnicodeConverter);
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this.__utf8Converter.charset = "UTF-8";
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}
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return this.__utf8Converter;
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},
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__utf16leConverter : null, // UCS2 <--> UTF16LE string conversion
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get _utf16leConverter() {
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if (!this.__utf16leConverter) {
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this.__utf16leConverter = Cc["@mozilla.org/intl/scriptableunicodeconverter"].
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createInstance(Ci.nsIScriptableUnicodeConverter);
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this.__utf16leConverter.charset = "UTF-16LE";
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}
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return this.__utf16leConverter;
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},
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_utfConverterReset : function() {
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this.__utf8Converter = null;
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this.__utf16leConverter = null;
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},
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_iniFile : null,
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_iniData : null,
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/*
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* Reads the INI file and stores the data internally.
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*/
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_readFile : function() {
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// If file doesn't exist, there's nothing to do.
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if (!this._iniFile.exists() || 0 == this._iniFile.fileSize)
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return;
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let iniParser = Cc["@mozilla.org/xpcom/ini-parser-factory;1"]
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.getService(Ci.nsIINIParserFactory).createINIParser(this._iniFile);
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for (let section in XPCOMUtils.IterStringEnumerator(iniParser.getSections())) {
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this._iniData[section] = {};
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for (let key in XPCOMUtils.IterStringEnumerator(iniParser.getKeys(section))) {
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this._iniData[section][key] = iniParser.getString(section, key);
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}
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}
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},
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// nsIINIParser
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getSections : function() {
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let sections = [];
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for (let section in this._iniData)
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sections.push(section);
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return new stringEnumerator(sections);
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},
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getKeys : function(aSection) {
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let keys = [];
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if (aSection in this._iniData)
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for (let key in this._iniData[aSection])
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keys.push(key);
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return new stringEnumerator(keys);
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},
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getString : function(aSection, aKey) {
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if (!(aSection in this._iniData))
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throw Cr.NS_ERROR_FAILURE;
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if (!(aKey in this._iniData[aSection]))
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throw Cr.NS_ERROR_FAILURE;
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return this._iniData[aSection][aKey];
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},
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// nsIINIParserWriter
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setString : function(aSection, aKey, aValue) {
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const isSectionIllegal = /[\0\r\n\[\]]/;
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const isKeyValIllegal = /[\0\r\n=]/;
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if (isSectionIllegal.test(aSection))
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throw Components.Exception("bad character in section name",
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Cr.ERROR_ILLEGAL_VALUE);
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if (isKeyValIllegal.test(aKey) || isKeyValIllegal.test(aValue))
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throw Components.Exception("bad character in key/value",
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Cr.ERROR_ILLEGAL_VALUE);
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if (!(aSection in this._iniData))
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this._iniData[aSection] = {};
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this._iniData[aSection][aKey] = aValue;
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},
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writeFile : function(aFile, aFlags) {
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let converter;
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function writeLine(data) {
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data += "\n";
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data = converter.ConvertFromUnicode(data);
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data += converter.Finish();
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outputStream.write(data, data.length);
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}
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if (!aFile)
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aFile = this._iniFile;
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let safeStream = Cc["@mozilla.org/network/safe-file-output-stream;1"].
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createInstance(Ci.nsIFileOutputStream);
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safeStream.init(aFile, MODE_WRONLY | MODE_CREATE | MODE_TRUNCATE,
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0600, null);
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var outputStream = Cc["@mozilla.org/network/buffered-output-stream;1"].
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createInstance(Ci.nsIBufferedOutputStream);
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outputStream.init(safeStream, 8192);
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outputStream.QueryInterface(Ci.nsISafeOutputStream); // for .finish()
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if (Ci.nsIINIParserWriter.WRITE_UTF16 == aFlags
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&& 'nsIWindowsRegKey' in Ci) {
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outputStream.write("\xFF\xFE", 2);
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converter = this._utf16leConverter;
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} else {
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converter = this._utf8Converter;
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}
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for (let section in this._iniData) {
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writeLine("[" + section + "]");
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for (let key in this._iniData[section]) {
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writeLine(key + "=" + this._iniData[section][key]);
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}
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}
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outputStream.finish();
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}
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};
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function stringEnumerator(stringArray) {
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this._strings = stringArray;
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}
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stringEnumerator.prototype = {
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QueryInterface : XPCOMUtils.generateQI([Ci.nsIUTF8StringEnumerator]),
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_strings : null,
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_enumIndex: 0,
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hasMore : function() {
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return (this._enumIndex < this._strings.length);
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},
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getNext : function() {
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return this._strings[this._enumIndex++];
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}
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};
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let component = [INIProcessorFactory];
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this.NSGetFactory = XPCOMUtils.generateNSGetFactory(component);
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