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