+/*
+ * Copyright (c) 2014, 2015 JANET(UK)
+ * 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. Neither the name of JANET(UK) nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "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
+ * COPYRIGHT HOLDER OR CONTRIBUTORS 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 <stdexcept>
+#include "GSSCredentialCache.h"
+#include "utils/util_base64.h"
+#include "utils/util_random.h"
+
+#define KEYLEN 128
+
+GSSCredentialCache* GSSCredentialCache::_instance = 0;
+
+GSSCredentialCache::GSSCredentialCache()
+{
+
+}
+
+GSSCredentialCache::GSSCredentialCache ( const GSSCredentialCache& other )
+{
+ credentials = other.credentials;
+}
+
+GSSCredentialCache::~GSSCredentialCache()
+{
+
+}
+
+GSSCredentialCache& GSSCredentialCache::operator= ( const GSSCredentialCache& other )
+{
+ credentials = other.credentials;
+
+ return *this;
+}
+
+
+std::string GSSCredentialCache::store ( GSSCredential& data, std::string inKey )
+{
+ /* Variables */
+ std::string key;
+
+ /* Error checking */
+ /* Setup */
+ /* Main */
+ // Generate a key
+ if ( inKey.length() > 0 )
+ {
+ key = inKey;
+ }
+ else if ( !generateKey(key) )
+ {
+ // Key generation failed. Eeek!
+ throw std::runtime_error("Could not generate random data for an ID");
+ }
+
+ // Store the key/value pair in the map
+ credentials[key] = &data;
+
+ /* Cleanup */
+ /* Return */
+ // Return the key for future reference
+ return(key);
+}
+
+/*************************************
+ * Generate random bytes, and base64 *
+ * encode them to be JSONable keys *
+ *************************************/
+bool GSSCredentialCache::generateKey(std::string &key)
+{
+ /* Variables */
+ unsigned char theKey[KEYLEN];
+
+ /* Setup */
+ /* Main */
+ // Generate random byte string
+ if (!randGenPseudoRandom(theKey, KEYLEN))
+ return(false);
+
+ // Encode the binary string
+ base64EncodeStr(theKey, KEYLEN, key);
+ /* Cleanup */
+ /* Return */
+ return(true);
+}
+
+GSSCredential& GSSCredentialCache::retrieve ( std::string key )
+{
+ /* Variables */
+ //GSSCredential data;
+
+ /* Error checking */
+ /* Setup */
+ /* Main */
+
+ /* Cleanup */
+ /* Return */
+ return *(credentials[key]);
+}
+
+GSSCredentialCache* GSSCredentialCache::instance()
+{
+ if (_instance == 0)
+ _instance = new GSSCredentialCache;
+
+ return _instance;
+}
+