SdpEncryptkey.cxx
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- /* ====================================================================
- * The Vovida Software License, Version 1.0
- *
- * Copyright (c) 2000 Vovida Networks, Inc. All rights reserved.
- *
- * 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 names "VOCAL", "Vovida Open Communication Application Library",
- * and "Vovida Open Communication Application Library (VOCAL)" must
- * not be used to endorse or promote products derived from this
- * software without prior written permission. For written
- * permission, please contact vocal@vovida.org.
- *
- * 4. Products derived from this software may not be called "VOCAL", nor
- * may "VOCAL" appear in their name, without prior written
- * permission of Vovida Networks, Inc.
- *
- * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESSED OR IMPLIED
- * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
- * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, TITLE AND
- * NON-INFRINGEMENT ARE DISCLAIMED. IN NO EVENT SHALL VOVIDA
- * NETWORKS, INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT DAMAGES
- * IN EXCESS OF $1,000, NOR FOR ANY INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
- * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
- * USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
- * DAMAGE.
- *
- * ====================================================================
- *
- * This software consists of voluntary contributions made by Vovida
- * Networks, Inc. and many individuals on behalf of Vovida Networks,
- * Inc. For more information on Vovida Networks, Inc., please see
- * <http://www.vovida.org/>.
- *
- */
- static const char* const SdpEncryptkey_cxx_Version =
- "$Id: SdpEncryptkey.cxx,v 1.12 2001/06/29 05:42:52 bko Exp $";
- //#include <assert.h>
- #include <cassert>
- #include <strstream>
- #include <string>
- #include "SdpEncryptkey.hxx"
- #include "support.hxx"
- ///
- SdpEncryptkey::SdpEncryptkey(string& s)
- {
- // k=<method>:<encryption key> or
- // k=<method> for "prompt" method
- // For "uri" method, the <encryption key> field may contains ":",
- // we can't use split() with ":"
- string tmp_string = s.substr(0, 3);
- #if defined (__SUNPRO_CC) || (defined(__GNUC__) && (__GNUC__ > 2))
- if (0 == (tmp_string.compare(0,3,"uri"))) // URI method
- #else
- if (0 == (tmp_string.compare("uri",0,3)))
- #endif
- {
- encrypt_method = EncryptMethodURI;
- encrypt_key = s.substr(4);
- }
- else
- {
- split_t encryptkeyList(split(s, ":"));
- if (encryptkeyList.size() == 1) // prompt method
- {
- if (encryptkeyList[0] == SdpEncryptkeyMethodPrompt)
- {
- encrypt_method = EncryptMethodPrompt;
- encrypt_key = "";
- }
- else
- {
- cpLog(LOG_ERR, "SdpEncryptkey: Undefined Method: %s", encryptkeyList[0].c_str());
- cpLog(LOG_ERR, "SdpEncryptkey: or valid method but no required value");
- throw SdpExceptions(UNKNOWN_ENCRYPT_METHOD);
- }
- }
- else if (encryptkeyList.size() == 2) // clear, base64, or URI
- {
- if (encryptkeyList[0] == SdpEncryptkeyMethodClear)
- {
- encrypt_method = EncryptMethodClear;
- encrypt_key = encryptkeyList[1];
- }
- else if (encryptkeyList[0] == SdpEncryptkeyMethodBase64)
- {
- encrypt_method = EncryptMethodBase64;
- encrypt_key = encryptkeyList[1];
- }
- else if (encryptkeyList[0] == SdpEncryptkeyMethodPrompt)
- {
- // Prompt method should not have value
- // Log a warning and set empty value
- encrypt_method = EncryptMethodPrompt;
- encrypt_key = "";
- cpLog(LOG_WARNING, "SdpEncryptkey: Prompt method shouldn't have value");
- }
- else
- {
- cpLog(LOG_ERR, "SdpEncryptkey: Undefined Method: %s", encryptkeyList[0].c_str());
- throw SdpExceptions(UNKNOWN_ENCRYPT_METHOD);
- }
- }
- else // bad "k=" line
- {
- cpLog(LOG_ERR, "SdpEncryptkey: bad k line: %s", s.c_str());
- throw SdpExceptions(UNKNOWN_ENCRYPT_METHOD);
- }
- }
- }
- ///
- void
- SdpEncryptkey::encode (ostrstream& s)
- {
- switch (encrypt_method)
- {
- case EncryptMethodClear:
- s << "k=" << SdpEncryptkeyMethodClear << ':' << encrypt_key << "rn";
- break;
- case EncryptMethodBase64:
- s << "k=" << SdpEncryptkeyMethodBase64 << ':' << encrypt_key << "rn";
- break;
- case EncryptMethodURI:
- s << "k=" << SdpEncryptkeyMethodURI << ':' << encrypt_key << "rn";
- break;
- case EncryptMethodPrompt:
- s << "k=" << SdpEncryptkeyMethodPrompt << "rn";
- break;
- default: // Log an error for unknown method but don't terminate
- cpLog(LOG_ERR, "SdpEncryptkey: unknown method: %d", encrypt_method);
- }
- } // SdpEncryptkey::encode
- ///
- bool
- SdpEncryptkey::dump ()
- {
- cpLog(LOG_DEBUG, "ENCRYPTION KEY ------------");
- switch (encrypt_method)
- {
- case EncryptMethodClear:
- cpLog(LOG_DEBUG, " Methodtt%s", SdpEncryptkeyMethodClear);
- break;
- case EncryptMethodBase64:
- cpLog(LOG_DEBUG, " Methodtt%s", SdpEncryptkeyMethodBase64);
- break;
- case EncryptMethodURI:
- cpLog(LOG_DEBUG, " Methodtt%s", SdpEncryptkeyMethodURI);
- break;
- case EncryptMethodPrompt:
- cpLog(LOG_DEBUG, " Methodtt%s", SdpEncryptkeyMethodPrompt);
- break;
- default:
- cpLog(LOG_DEBUG, " Methodtt%s", "unknown");
- }
- if (encrypt_key.size() > 0)
- cpLog(LOG_DEBUG, " Keyttt%s", encrypt_key.c_str());
- return true;
- }