Add m-esr52 at 52.6.0

1 files changed, 192 insertions, 0 deletions

diff --git a/xpcom/ds/nsINIProcessor.js b/xpcom/ds/nsINIProcessor.js
new file mode 100644
index 000000000..832f35a5f
--- /dev/null
+++ b/xpcom/ds/nsINIProcessor.js
@@ -0,0 +1,192 @@
+/* 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);