gecko/mobile/android/chrome/content/exceptions.js

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/* ***** 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 mozilla.org code
*
* The Initial Developer of the Original Code is
* Mozilla Corporation.
* Portions created by the Initial Developer are Copyright (C) 2007
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Johnathan Nightingale <johnath@mozilla.com>
* Ehsan Akhgari <ehsan.akhgari@gmail.com>
* Steffen Imhof <steffen.imhof@googlemail.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 ***** */
let Cc = Components.classes;
let Ci = Components.interfaces;
/**
A class to add exceptions to override SSL certificate problems. The functionality
itself is borrowed from exceptionDialog.js.
*/
function SSLExceptions() {
this._overrideService = Cc["@mozilla.org/security/certoverride;1"]
.getService(Ci.nsICertOverrideService);
}
SSLExceptions.prototype = {
_overrideService: null,
_sslStatus: null,
getInterface: function SSLE_getInterface(aIID) {
return this.QueryInterface(aIID);
},
QueryInterface: function SSLE_QueryInterface(aIID) {
if (aIID.equals(Ci.nsIBadCertListener2) ||
aIID.equals(Ci.nsISupports))
return this;
throw Components.results.NS_ERROR_NO_INTERFACE;
},
/**
To collect the SSL status we intercept the certificate error here
and store the status for later use.
*/
notifyCertProblem: function SSLE_notifyCertProblem(socketInfo, sslStatus, targetHost) {
this._sslStatus = sslStatus.QueryInterface(Ci.nsISSLStatus);
return true; // suppress error UI
},
/**
Returns true if the private browsing mode is currently active
*/
_inPrivateBrowsingMode: function SSLE_inPrivateBrowsingMode() {
try {
var pb = Cc["@mozilla.org/privatebrowsing;1"].getService(Ci.nsIPrivateBrowsingService);
return pb.privateBrowsingEnabled;
} catch (ex) {}
return false;
},
/**
Attempt to download the certificate for the location specified to get the SSLState
for the certificate and the errors.
*/
_checkCert: function SSLE_checkCert(aURI) {
this._sslStatus = null;
var req = new XMLHttpRequest();
try {
if(aURI) {
req.open("GET", aURI.prePath, false);
req.channel.notificationCallbacks = this;
req.send(null);
}
} catch (e) {
// We *expect* exceptions if there are problems with the certificate
// presented by the site. Log it, just in case, but we can proceed here,
// with appropriate sanity checks
Components.utils.reportError("Attempted to connect to a site with a bad certificate in the add exception dialog. " +
"This results in a (mostly harmless) exception being thrown. " +
"Logged for information purposes only: " + e);
}
return this._sslStatus;
},
/**
Internal method to create an override.
*/
_addOverride: function SSLE_addOverride(aURI, temporary) {
var SSLStatus = this._checkCert(aURI);
var certificate = SSLStatus.serverCert;
var flags = 0;
// in private browsing do not store exceptions permanently ever
if (this._inPrivateBrowsingMode()) {
temporary = true;
}
if(SSLStatus.isUntrusted)
flags |= this._overrideService.ERROR_UNTRUSTED;
if(SSLStatus.isDomainMismatch)
flags |= this._overrideService.ERROR_MISMATCH;
if(SSLStatus.isNotValidAtThisTime)
flags |= this._overrideService.ERROR_TIME;
this._overrideService.rememberValidityOverride(
aURI.asciiHost,
aURI.port,
certificate,
flags,
temporary);
},
/**
Creates a permanent exception to override all overridable errors for
the given URL.
*/
addPermanentException: function SSLE_addPermanentException(aURI) {
this._addOverride(aURI, false);
},
/**
Creates a temporary exception to override all overridable errors for
the given URL.
*/
addTemporaryException: function SSLE_addTemporaryException(aURI) {
this._addOverride(aURI, true);
}
};