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/*
* libjingle
* Copyright 2004--2005, Google Inc.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
* EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <algorithm>
#include "talk/examples/login/xmppauth.h"
#include "talk/xmpp/saslcookiemechanism.h"
#include "talk/xmpp/saslplainmechanism.h"
XmppAuth::XmppAuth() : done_(false), error_(false) {
}
XmppAuth::~XmppAuth() {
}
void XmppAuth::StartPreXmppAuth(const buzz::Jid & jid,
const cricket::SocketAddress & server,
const buzz::XmppPassword & pass,
const std::string & auth_cookie) {
jid_ = jid;
passwd_ = pass;
auth_cookie_ = auth_cookie;
error_ = auth_cookie.empty();
done_ = true;
SignalAuthDone();
}
std::string XmppAuth::ChooseBestSaslMechanism(
const std::vector<std::string> & mechanisms,
bool encrypted) {
std::vector<std::string>::const_iterator it;
// a token is the weakest auth - 15s, service-limited, so prefer it.
it = std::find(mechanisms.begin(), mechanisms.end(), "X-GOOGLE-TOKEN");
if (it != mechanisms.end())
return "X-GOOGLE-TOKEN";
// a cookie is the next weakest - 14 days
it = std::find(mechanisms.begin(), mechanisms.end(), "X-GOOGLE-COOKIE");
if (it != mechanisms.end())
return "X-GOOGLE-COOKIE";
// never pass @google.com passwords without encryption!!
if (!encrypted && (jid_.domain() == "google.com"))
return "";
// as a last resort, use plain authentication
if (jid_.domain() != "google.com") {
it = std::find(mechanisms.begin(), mechanisms.end(), "PLAIN");
if (it != mechanisms.end())
return "PLAIN";
}
// No good mechanism found
return "";
}
buzz::SaslMechanism* XmppAuth::CreateSaslMechanism(
const std::string & mechanism) {
if (mechanism == "X-GOOGLE-TOKEN") {
return new buzz::SaslCookieMechanism(mechanism, jid_.Str(), auth_cookie_);
//} else if (mechanism == "X-GOOGLE-COOKIE") {
// return new buzz::SaslCookieMechanism(mechanism, jid.Str(), sid_);
} else if (mechanism == "PLAIN") {
return new buzz::SaslPlainMechanism(jid_, passwd_);
} else {
return NULL;
}
}
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