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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
const Cc = Components.classes;
const Ci = Components.interfaces;
const Cr = Components.results;
const Cu = Components.utils;
Components.utils.import("resource://gre/modules/XPCOMUtils.jsm");
function INIProcessorFactory() {
}
INIProcessorFactory.prototype = {
classID: Components.ID("{6ec5f479-8e13-4403-b6ca-fe4c2dca14fd}"),
QueryInterface : XPCOMUtils.generateQI([Ci.nsIINIParserFactory]),
createINIParser : function (aINIFile) {
return new INIProcessor(aINIFile);
}
}; // end of INIProcessorFactory implementation
const MODE_WRONLY = 0x02;
const MODE_CREATE = 0x08;
const MODE_TRUNCATE = 0x20;
// nsIINIParser implementation
function INIProcessor(aFile) {
this._iniFile = aFile;
this._iniData = {};
this._readFile();
}
INIProcessor.prototype = {
QueryInterface : XPCOMUtils.generateQI([Ci.nsIINIParser, Ci.nsIINIParserWriter]),
__utf8Converter : null, // UCS2 <--> UTF8 string conversion
get _utf8Converter() {
if (!this.__utf8Converter) {
this.__utf8Converter = Cc["@mozilla.org/intl/scriptableunicodeconverter"].
createInstance(Ci.nsIScriptableUnicodeConverter);
this.__utf8Converter.charset = "UTF-8";
}
return this.__utf8Converter;
},
__utf16leConverter : null, // UCS2 <--> UTF16LE string conversion
get _utf16leConverter() {
if (!this.__utf16leConverter) {
this.__utf16leConverter = Cc["@mozilla.org/intl/scriptableunicodeconverter"].
createInstance(Ci.nsIScriptableUnicodeConverter);
this.__utf16leConverter.charset = "UTF-16LE";
}
return this.__utf16leConverter;
},
_utfConverterReset : function() {
this.__utf8Converter = null;
this.__utf16leConverter = null;
},
_iniFile : null,
_iniData : null,
/*
* Reads the INI file and stores the data internally.
*/
_readFile : function() {
// If file doesn't exist, there's nothing to do.
if (!this._iniFile.exists() || 0 == this._iniFile.fileSize)
return;
let iniParser = Cc["@mozilla.org/xpcom/ini-parser-factory;1"]
.getService(Ci.nsIINIParserFactory).createINIParser(this._iniFile);
for (let section of XPCOMUtils.IterStringEnumerator(iniParser.getSections())) {
this._iniData[section] = {};
for (let key of XPCOMUtils.IterStringEnumerator(iniParser.getKeys(section))) {
this._iniData[section][key] = iniParser.getString(section, key);
}
}
},
// nsIINIParser
getSections : function() {
let sections = [];
for (let section in this._iniData)
sections.push(section);
return new stringEnumerator(sections);
},
getKeys : function(aSection) {
let keys = [];
if (aSection in this._iniData)
for (let key in this._iniData[aSection])
keys.push(key);
return new stringEnumerator(keys);
},
getString : function(aSection, aKey) {
if (!(aSection in this._iniData))
throw Cr.NS_ERROR_FAILURE;
if (!(aKey in this._iniData[aSection]))
throw Cr.NS_ERROR_FAILURE;
return this._iniData[aSection][aKey];
},
// nsIINIParserWriter
setString : function(aSection, aKey, aValue) {
const isSectionIllegal = /[\0\r\n\[\]]/;
const isKeyValIllegal = /[\0\r\n=]/;
if (isSectionIllegal.test(aSection))
throw Components.Exception("bad character in section name",
Cr.ERROR_ILLEGAL_VALUE);
if (isKeyValIllegal.test(aKey) || isKeyValIllegal.test(aValue))
throw Components.Exception("bad character in key/value",
Cr.ERROR_ILLEGAL_VALUE);
if (!(aSection in this._iniData))
this._iniData[aSection] = {};
this._iniData[aSection][aKey] = aValue;
},
writeFile : function(aFile, aFlags) {
let converter;
function writeLine(data) {
data += "\n";
data = converter.ConvertFromUnicode(data);
data += converter.Finish();
outputStream.write(data, data.length);
}
if (!aFile)
aFile = this._iniFile;
let safeStream = Cc["@mozilla.org/network/safe-file-output-stream;1"].
createInstance(Ci.nsIFileOutputStream);
safeStream.init(aFile, MODE_WRONLY | MODE_CREATE | MODE_TRUNCATE,
0o600, null);
var outputStream = Cc["@mozilla.org/network/buffered-output-stream;1"].
createInstance(Ci.nsIBufferedOutputStream);
outputStream.init(safeStream, 8192);
outputStream.QueryInterface(Ci.nsISafeOutputStream); // for .finish()
if (Ci.nsIINIParserWriter.WRITE_UTF16 == aFlags
&& 'nsIWindowsRegKey' in Ci) {
outputStream.write("\xFF\xFE", 2);
converter = this._utf16leConverter;
} else {
converter = this._utf8Converter;
}
for (let section in this._iniData) {
writeLine("[" + section + "]");
for (let key in this._iniData[section]) {
writeLine(key + "=" + this._iniData[section][key]);
}
}
outputStream.finish();
}
};
function stringEnumerator(stringArray) {
this._strings = stringArray;
}
stringEnumerator.prototype = {
QueryInterface : XPCOMUtils.generateQI([Ci.nsIUTF8StringEnumerator]),
_strings : null,
_enumIndex: 0,
hasMore : function() {
return (this._enumIndex < this._strings.length);
},
getNext : function() {
return this._strings[this._enumIndex++];
}
};
var component = [INIProcessorFactory];
this.NSGetFactory = XPCOMUtils.generateNSGetFactory(component);
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