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/* Authors:
* Petr Vobornik <pvoborni@redhat.com>
*
* Copyright (C) 2012 Red Hat
* see file 'COPYING' for use and warranty information
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
var EXPORTED_SYMBOLS = ["kerberosauth", "kerberosauth_listener"];
var Cc = Components.classes;
var Ci = Components.interfaces;
var kerberosauth = {
// Dictionary of configuration options this extension can configure.
// An alias (key) is set for each options. Using a set of aliases limits
// configuration pages from supplying potential malicious options.
config_options: {
referer: ['network.http.sendRefererHeader', 'int'],
native_gss_lib: ['network.negotiate-auth.using-native-gsslib', 'bool'],
trusted_uris: ['network.negotiate-auth.trusted-uris', 'str'],
allow_proxies: ['network.negotiate-auth.allow-proxies', 'bool']
},
// Some preconfigurations to make things easier. Can be good if UI is added
// (mostly for future usage).
predefined_configurations: {
ipa: {
referer: '2',
native_gss_lib: 'true',
trusted_uris: '',
allow_proxies: 'true',
append: ['trusted_uris']
}
},
page_listener: function(event, dom_window) {
var self = this;
var conf = {
event: event,
window: dom_window || window,
element: event.target
};
if (!conf.element.hasAttribute('method')) return;
var method = conf.element.getAttribute('method');
if (method === 'configure') self.configure(conf);
if (method === 'can_configure') self.send_response(conf.element, { answer: 'true' });
},
send_response: function(element, options) {
options = options || {};
var doc = element.ownerDocument;
for (var opt in options) {
element.setAttribute(opt, options[opt]);
}
var answer_event = doc.createEvent("HTMLEvents");
answer_event.initEvent("kerberos-auth-answer", true, false);
element.dispatchEvent(answer_event);
},
notify_installed: function(window) {
var doc = window.document;
var event = doc.createEvent("HTMLEvents");
event.initEvent("kerberos-auth-installed", true, false);
doc.dispatchEvent(event);
},
configure: function(conf) {
var self = this;
var options = {}; // options to be configured
var opt;
// use predefined configuration if supplied
if (conf.element.hasAttribute('predefined')) {
var predefined = conf.element.getAttribute('predefined');
var pconfig = self.predefined_configurations[predefined];
if (pconfig) {
for (opt in pconfig) {
options[opt] = pconfig[opt];
}
}
}
// overwrite predefined with supplied and only supported options
for (var i=0; i < conf.element.attributes.length; i++) {
var attr = conf.element.attributes[i].name;
if (attr in self.config_options) {
options[attr] = conf.element.getAttribute(attr);
}
}
if (self.prompt(conf, options)) {
self.configure_core(conf, options);
self.send_response(conf.element, { answer: 'configured' });
} else {
self.send_response(conf.element, { answer: 'aborted' });
}
},
configure_core: function(conf, options) {
var self = this;
var prefs = Cc["@mozilla.org/preferences-service;1"].getService(Ci.nsIPrefBranch);
var append_opts = options.append || [];
for (var opt in options) {
if (!self.config_options[opt]) continue;
var name = self.config_options[opt][0];
var type = self.config_options[opt][1];
var value = options[opt];
if (type === 'str') {
if (value && append_opts.indexOf(opt) > -1) {
var current = prefs.getCharPref(name) || '';
if (this.str_contains(current, value)) {
continue;
} else if (current) {
value = current + ', ' + value;
}
}
prefs.setCharPref(name, value);
} else if (type ==='int') {
prefs.setIntPref(name, Number(value));
} else if (type === 'bool') {
prefs.setBoolPref(name, value === 'true');
}
}
},
str_contains: function(str, value) {
if (!str) return false;
var vals = str.split(',');
for (var i=0, l=vals.length; i<l; i++) {
if (vals[i].trim() === value) return true;
}
return false;
},
prompt: function(conf, options) {
var strs = Cc["@mozilla.org/intl/stringbundle;1"].
getService(Ci.nsIStringBundleService).
createBundle("chrome://kerberosauth/locale/kerberosauth.properties");
var prompts = Cc["@mozilla.org/embedcomp/prompt-service;1"].
getService(Ci.nsIPromptService);
var title = strs.GetStringFromName('prompt_title');
var text = strs.GetStringFromName('prompt_topic');
if (options.trusted_uris) {
text += strs.GetStringFromName('prompt_domain').replace('${domain}', options.trusted_uris);
}
text += strs.GetStringFromName('prompt_question');
var flags = prompts.STD_YES_NO_BUTTONS;
var confirmed = prompts.confirmEx(conf.window, title, text, flags, "","","",
null,{value: false}) === 0;
return confirmed;
}
};
var kerberosauth_listener = function(window) {
return function(event) {
kerberosauth.page_listener(event, window);
};
};
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