/usr/share/xul-ext/form-history-control/chrome/content/utils/FhcRdfExtensionHandler.js is in xul-ext-form-history-control 1.4.0.6-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 | /* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* 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 FhcRdfExtensionHandler.
*
* The Initial Developer of the Original Code is Stephan Mahieu.
* Portions created by the Initial Developer are Copyright (C) 2011
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Stephan Mahieu <stephanmahieu@yahoo.com>
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
/**
* Read values from the install.rdf of this extension.
* Handy for incorporating info in the about dialog.
*
* Dependencies: -
*/
function FhcRdfExtensionHandler() {
this.xmlInstall = this._getXMLFile();
}
// Class FhcRdfExtensionHandler
FhcRdfExtensionHandler.prototype = {
/**
* Return the name of this addon.
* @return {String}
*/
getName: function() {
return this._getByTagname("em:name");
},
/**
* Return the name of this addon.
* @return {String}
*/
getDescription: function() {
return this._getByTagnameLocalized("em:description");
},
/**
* Return the version of this addon.
* @return {String}
*/
getVersion: function() {
return this._getByTagname("em:version");
},
/**
* Return the homepageURL of this addon.
* @return {String}
*/
getHomepageURL: function() {
return this._getByTagname("em:homepageURL");
},
/**
* Return the creator of this addon.
* @return {String}
*/
getCreator: function() {
return this._getByTagname("em:creator");
},
/**
* Get the contributors from the install.rdf. getValues will only read
* locale dependend info, so the contributors must be present in all locale
* sections of install.rdf as well :-(
*
* @param contributors {Array}
* empty array of contributors to be populated by this metod
*
* @param translators {Array}
* empty array of translators to be populated by this metod
*/
getContributors: function(contributors, translators) {
var contrib = this.xmlInstall.getElementsByTagName("em:contributor");
for(var ii=0; ii<contrib.length; ii++) {
contributors.push(contrib[ii].textContent);
}
var transl = this.xmlInstall.getElementsByTagName("em:translator");
for(var jj=0; jj<transl.length; jj++) {
translators.push(transl[jj].textContent);
}
},
/**
* Get a single value from the install.rdf directly from the xml.
* If we would use getValue() we would only get locale dependend info,
* thus the information (tagname) must be present in all locale sections.
* For example: tag <em:creator> is not present in all locale sections.
*
* @param tagname {String}
* the name of the tag of the install.rdf
*
* @return {String}
* the textcontent of the tag
*/
_getByTagname: function(tagname) {
var elem = this.xmlInstall.getElementsByTagName(tagname);
return elem[0].textContent;
},
/**
* Get a single value from the install.rdf directly from the xml.
* Try within <em:localized> tags first, it must contain an <em:locale> tag
* with the current locale. If nothing found, try to find the tagname from root.
*
* @param tagname {String}
* the name of the tag of the install.rdf
*
* @return {String}
* the textcontent of the tag
*/
_getByTagnameLocalized: function(tagname) {
var locale = Components.classes["@mozilla.org/preferences-service;1"]
.getService(Components.interfaces.nsIPrefBranch)
.getCharPref("general.useragent.locale");
var tagValue = this._getByTagnameLocale(tagname, locale);
if (tagValue == "" && locale.length > 2) {
// try 2 letter locale
tagValue = this._getByTagnameLocale(tagname, locale.substr(0,2));
}
if (tagValue == "") {
// no localized tag, try from root, return first match
tagValue = this._getByTagname(tagname);
}
return tagValue;
},
/**
* Get a single value from the install.rdf directly from the xml.
* Try within <em:localized> tags, it must contain an <em:locale> tag
* with the given locale. If nothing found, return an empty String.
*
* @param tagname {String}
* the name of the tag of the install.rdf
*
* @param locale {String}
* the locale defined for the tagname
*
* @return {String}
* the textcontent of the tag
*/
_getByTagnameLocale: function(tagname, locale) {
var elemLocalized = this.xmlInstall.getElementsByTagName("em:localized");
for (var ii=0; ii<elemLocalized.length; ii++) {
var elmLocale = elemLocalized[ii].getElementsByTagName("em:locale");
if (elmLocale.length > 0) {
if (elmLocale[0].textContent == locale) {
// found a locale match
var elem = elemLocalized[ii].getElementsByTagName(tagname);
if (elem.length > 0) {
return elem[0].textContent;
}
}
}
}
return "";
},
/**
* Read the install.rdf file located in the chrome directory.
*
* @return {XML DOM}
* the XML DOM representation of the XML file
*/
_getXMLFile: function() {
var dirServiceProp = Components.classes["@mozilla.org/file/directory_service;1"]
.getService(Components.interfaces.nsIProperties);
var xmlfile = dirServiceProp.get("ProfD", Components.interfaces.nsIFile);
xmlfile.append("extensions");
xmlfile.append("formhistory@yahoo.com");
if (xmlfile.isDirectory()) {
xmlfile.append("install.rdf");
}
else if (xmlfile.isFile()) {
xmlfile = this._resolveDevelopmentLocation(xmlfile);
}
return this._parseXMLFileToDOM(xmlfile);
},
/**
* Parse an XML file into a DOM.
*
* @param xmlfile {nsIFile}
* the xml file.
*
* @return {DOM}
* xmlfile parsed to DOM.
*/
_parseXMLFileToDOM: function(xmlfile) {
var xml = null;
try {
// open xml file for reading
var fstream = Components.classes["@mozilla.org/network/file-input-stream;1"]
.createInstance(Components.interfaces.nsIFileInputStream);
var cstream = Components.classes["@mozilla.org/intl/converter-input-stream;1"]
.createInstance(Components.interfaces.nsIConverterInputStream);
fstream.init(xmlfile, -1/*(PR_RDONLY)*/, -1/*default permission*/, null);
cstream.init(fstream, "UTF-8", 0, 0);
// parse xml
try {
var xmlString = this._readTextFromStream(cstream);
var parser = new DOMParser();
xml = parser.parseFromString(xmlString, "text/xml");
}
catch(parseEx) {
dump('Exception parsing xml:' + parseEx + '\n');
}
finally {
cstream.close();
}
}
catch(streamEx) {
dump('Exception reading xml stream:' + streamEx + '\n');
}
return xml;
},
/**
* Read text data from inputstream into a String.
*
* @param streamIn {nsIInputStream}
* the inputstream (source)
*
* @return {String}
* text data
*/
_readTextFromStream: function(streamIn) {
var lines = "";
var str = {};
while (streamIn.readString(4096, str) != 0) {
lines += str.value;
}
return lines;
},
/**
* Instead of the xpi or directory, a file can be used containing one line
* of text describing the actual location of the extension (development use).
* This method reads the first line of the file and returns the location as
* a new nsIFile object.
*
* @param shortcutFile {nsIFile}
* file containing a string describing the actual location.
*
* @return {nsIFile}
* The actual location.
*/
_resolveDevelopmentLocation: function(shortcutFile) {
// reading contents
var devStreamIn = Components.classes["@mozilla.org/network/file-input-stream;1"]
.createInstance(Components.interfaces.nsIFileInputStream);
devStreamIn.init(shortcutFile, -1/*(PR_RDONLY)*/, -1/*default permission*/, null);
var developLocation = {};
try {
// assume real location is on first line
devStreamIn.readLine(developLocation);
} finally {
devStreamIn.close();
}
var xmlfile = "";
if (developLocation && developLocation.value) {
// try linked location
xmlfile = Components.classes["@mozilla.org/file/local;1"]
.createInstance(Components.interfaces.nsIFile);
xmlfile.initWithPath(developLocation.value);
xmlfile.append("install.rdf");
}
return xmlfile;
}
}
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