webrtc/talk/xmpp/xmppauth.cc

106 lines
3.9 KiB
C++

/*
* 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 "webrtc/libjingle/xmpp/xmppauth.h"
#include <algorithm>
#include "webrtc/libjingle/xmpp/constants.h"
#include "webrtc/libjingle/xmpp/saslcookiemechanism.h"
#include "webrtc/libjingle/xmpp/saslplainmechanism.h"
XmppAuth::XmppAuth() : done_(false) {
}
XmppAuth::~XmppAuth() {
}
void XmppAuth::StartPreXmppAuth(const buzz::Jid& jid,
const rtc::SocketAddress& server,
const rtc::CryptString& pass,
const std::string& auth_mechanism,
const std::string& auth_token) {
jid_ = jid;
passwd_ = pass;
auth_mechanism_ = auth_mechanism;
auth_token_ = auth_token;
done_ = true;
SignalAuthDone();
}
static bool contains(const std::vector<std::string>& strings,
const std::string& string) {
return std::find(strings.begin(), strings.end(), string) != strings.end();
}
std::string XmppAuth::ChooseBestSaslMechanism(
const std::vector<std::string>& mechanisms,
bool encrypted) {
// First try Oauth2.
if (GetAuthMechanism() == buzz::AUTH_MECHANISM_OAUTH2 &&
contains(mechanisms, buzz::AUTH_MECHANISM_OAUTH2)) {
return buzz::AUTH_MECHANISM_OAUTH2;
}
// A token is the weakest auth - 15s, service-limited, so prefer it.
if (GetAuthMechanism() == buzz::AUTH_MECHANISM_GOOGLE_TOKEN &&
contains(mechanisms, buzz::AUTH_MECHANISM_GOOGLE_TOKEN)) {
return buzz::AUTH_MECHANISM_GOOGLE_TOKEN;
}
// A cookie is the next weakest - 14 days.
if (GetAuthMechanism() == buzz::AUTH_MECHANISM_GOOGLE_COOKIE &&
contains(mechanisms, buzz::AUTH_MECHANISM_GOOGLE_COOKIE)) {
return buzz::AUTH_MECHANISM_GOOGLE_COOKIE;
}
// As a last resort, use plain authentication.
if (contains(mechanisms, buzz::AUTH_MECHANISM_PLAIN)) {
return buzz::AUTH_MECHANISM_PLAIN;
}
// No good mechanism found
return "";
}
buzz::SaslMechanism* XmppAuth::CreateSaslMechanism(
const std::string& mechanism) {
if (mechanism == buzz::AUTH_MECHANISM_OAUTH2) {
return new buzz::SaslCookieMechanism(
mechanism, jid_.Str(), auth_token_, "oauth2");
} else if (mechanism == buzz::AUTH_MECHANISM_GOOGLE_TOKEN) {
return new buzz::SaslCookieMechanism(mechanism, jid_.Str(), auth_token_);
// } else if (mechanism == buzz::AUTH_MECHANISM_GOOGLE_COOKIE) {
// return new buzz::SaslCookieMechanism(mechanism, jid.Str(), sid_);
} else if (mechanism == buzz::AUTH_MECHANISM_PLAIN) {
return new buzz::SaslPlainMechanism(jid_, passwd_);
} else {
return NULL;
}
}