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/**
* @file llsecapi.cpp
* @brief Security API for services such as certificate handling
* secure local storage, etc.
*
* $LicenseInfo:firstyear=2009&license=viewerlgpl$
* Second Life Viewer Source Code
* Copyright (C) 2010, Linden Research, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation;
* version 2.1 of the License only.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
* Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA
* $/LicenseInfo$
*/
#include "llviewerprecompiledheaders.h"
#include "llsecapi.h"
#include "llsechandler_basic.h"
#include <openssl/evp.h>
#include <openssl/err.h>
#include <map>
#include "llhttpclient.h"
std::map<std::string, LLPointer<LLSecAPIHandler> > gHandlerMap;
LLPointer<LLSecAPIHandler> gSecAPIHandler;
void initializeSecHandler()
{
ERR_load_crypto_strings();
OpenSSL_add_all_algorithms();
gHandlerMap[BASIC_SECHANDLER] = new LLSecAPIBasicHandler();
// Currently, we only have the Basic handler, so we can point the main sechandler
// pointer to the basic handler. Later, we'll create a wrapper handler that
// selects the appropriate sechandler as needed, for instance choosing the
// mac keyring handler, with fallback to the basic sechandler
gSecAPIHandler = gHandlerMap[BASIC_SECHANDLER];
// initialize all SecAPIHandlers
std::string exception_msg;
std::map<std::string, LLPointer<LLSecAPIHandler> >::const_iterator itr;
for(itr = gHandlerMap.begin(); itr != gHandlerMap.end(); ++itr)
{
LLPointer<LLSecAPIHandler> handler = (*itr).second;
try
{
handler->init();
}
catch (LLProtectedDataException e)
{
exception_msg = e.getMessage();
}
}
if (!exception_msg.empty()) // an exception was thrown.
{
throw LLProtectedDataException(exception_msg.c_str());
}
}
// start using a given security api handler. If the string is empty
// the default is used
LLPointer<LLSecAPIHandler> getSecHandler(const std::string& handler_type)
{
if (gHandlerMap.find(handler_type) != gHandlerMap.end())
{
return gHandlerMap[handler_type];
}
else
{
return LLPointer<LLSecAPIHandler>(NULL);
}
}
// register a handler
void registerSecHandler(const std::string& handler_type,
LLPointer<LLSecAPIHandler>& handler)
{
gHandlerMap[handler_type] = handler;
}
std::ostream& operator <<(std::ostream& s, const LLCredential& cred)
{
return s << (std::string)cred;
}
// secapiSSLCertVerifyCallback
// basic callback called when a cert verification is requested.
// calls SECAPI to validate the context
// not initialized in the above initialization function, due to unit tests
// see llappviewer
int secapiSSLCertVerifyCallback(X509_STORE_CTX *ctx, void *param)
{
LLURLRequest *req = (LLURLRequest *)param;
LLPointer<LLCertificateStore> store = gSecAPIHandler->getCertificateStore("");
LLPointer<LLCertificateChain> chain = gSecAPIHandler->getCertificateChain(ctx);
LLSD validation_params = LLSD::emptyMap();
LLURI uri(req->getURL());
validation_params[CERT_HOSTNAME] = uri.hostName();
try
{
// we rely on libcurl to validate the hostname, as libcurl does more extensive validation
// leaving our hostname validation call mechanism for future additions with respect to
// OS native (Mac keyring, windows CAPI) validation.
store->validate(VALIDATION_POLICY_SSL & (~VALIDATION_POLICY_HOSTNAME), chain, validation_params);
}
catch (LLCertValidationTrustException& cert_exception)
{
LL_WARNS("AppInit") << "Cert not trusted: " << cert_exception.getMessage() << LL_ENDL;
return 0;
}
catch (LLCertException& cert_exception)
{
LL_WARNS("AppInit") << "cert error " << cert_exception.getMessage() << LL_ENDL;
return 0;
}
catch (...)
{
LL_WARNS("AppInit") << "cert error " << LL_ENDL;
return 0;
}
return 1;
}
LLSD LLCredential::getLoginParams()
{
LLSD result = LLSD::emptyMap();
try
{
if (mIdentifier["type"].asString() == "agent")
{
// legacy credential
result["passwd"] = "$1$" + mAuthenticator["secret"].asString();
result["first"] = mIdentifier["first_name"];
result["last"] = mIdentifier["last_name"];
}
else if (mIdentifier["type"].asString() == "account")
{
result["username"] = mIdentifier["account_name"];
result["passwd"] = mAuthenticator["secret"];
}
}
catch (...)
{
// we could have corrupt data, so simply return a null login param if so
LL_WARNS("AppInit") << "Invalid credential" << LL_ENDL;
}
return result;
}
void LLCredential::identifierType(std::string &idType)
{
if(mIdentifier.has("type"))
{
idType = mIdentifier["type"].asString();
}
else {
idType = std::string();
}
}
void LLCredential::authenticatorType(std::string &idType)
{
if(mAuthenticator.has("type"))
{
idType = mAuthenticator["type"].asString();
}
else {
idType = std::string();
}
}
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