1 files changed, 72 insertions, 0 deletions
diff --git a/src/fetch/amazonrequest.cpp b/src/fetch/amazonrequest.cpp
new file mode 100644
index 0000000..bb8d729
--- /dev/null
+++ b/src/fetch/amazonrequest.cpp
@@ -0,0 +1,72 @@
+/***************************************************************************
+    Copyright (C) 2007-2009 Robby Stephenson <robby@periapsis.org>
+ ***************************************************************************/
+
+/***************************************************************************
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or         *
+ *   modify it under the terms of the GNU General Public License as        *
+ *   published by the Free Software Foundation; either version 2 of        *
+ *   the License or (at your option) version 3 or any later version        *
+ *   accepted by the membership of KDE e.V. (or its successor approved     *
+ *   by the membership of KDE e.V.), which shall act as a proxy            *
+ *   defined in Section 14 of version 3 of the license.                    *
+ *                                                                         *
+ *   This program 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 General Public License for more details.                          *
+ *                                                                         *
+ *   You should have received a copy of the GNU General Public License     *
+ *   along with this program.  If not, see <http://www.gnu.org/licenses/>. *
+ *                                                                         *
+ ***************************************************************************/
+
+#include "amazonrequest.h"
+#include "hmac_sha2.h"
+#include "../tellico_debug.h"
+
+#include <kmdcodec.h>
+
+#include <tqdatetime.h>
+
+using Tellico::Fetch::AmazonRequest;
+
+AmazonRequest::AmazonRequest(const KURL& site_, const TQString& key_) : m_siteUrl(site_), m_key(key_) {
+}
+
+KURL AmazonRequest::signedRequest(const TQMap<TQString, TQString>& params_) const {
+  TQMap<TQString, TQString> allParams = params_;
+  allParams.insert(TQString::fromLatin1("Timestamp"),
+                   TQDateTime::currentDateTime(TQt::UTC).toString(TQt::ISODate));
+
+  TQString query;
+  // has to be a map so that the query elements are sorted
+  TQMap<TQString, TQString>::Iterator it;
+  for ( it = allParams.begin(); it != allParams.end(); ++it ) {
+    query += KURL::encode_string(it.key());
+    query += '=';
+    query += KURL::encode_string(it.data());
+    query += '&';
+  }
+  // remove last '&'
+  query.truncate(query.length()-1);
+
+  const TQCString toSign = "GET\n"
+                          + m_siteUrl.host().utf8() + '\n'
+                          + m_siteUrl.path().utf8() + '\n'
+                          + query.latin1();
+
+  TQByteArray hmac_buffer;
+  hmac_buffer.fill('\0', SHA256_DIGEST_SIZE);
+  // subtract one from string size for toSign, not exactly sure why
+  hmac_sha256(reinterpret_cast<unsigned char*>(const_cast<char*>(m_key.latin1())), m_key.length(),
+              reinterpret_cast<unsigned char*>(toSign.data()), toSign.size()-1,
+              reinterpret_cast<unsigned char*>(hmac_buffer.data()), hmac_buffer.size());
+  const TQString sig = KURL::encode_string(KCodecs::base64Encode(hmac_buffer));
+//  myDebug() << sig << endl;
+
+  KURL url = m_siteUrl;
+  url.setQuery(query + "&Signature=" + sig);
+  return url;
+}