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73 lines
3.3 KiB
73 lines
3.3 KiB
/***************************************************************************
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Copyright (C) 2007-2009 Robby Stephenson <robby@periapsis.org>
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***************************************************************************/
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/***************************************************************************
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* *
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* This program is free software; you can redistribute it and/or *
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* modify it under the terms of the GNU General Public License as *
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* published by the Free Software Foundation; either version 2 of *
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* the License or (at your option) version 3 or any later version *
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* accepted by the membership of KDE e.V. (or its successor approved *
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* by the membership of KDE e.V.), which shall act as a proxy *
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* defined in Section 14 of version 3 of the license. *
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* *
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* This program is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU General Public License for more details. *
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* *
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* You should have received a copy of the GNU General Public License *
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* along with this program. If not, see <http://www.gnu.org/licenses/>. *
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* *
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***************************************************************************/
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#include "amazonrequest.h"
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#include "hmac_sha2.h"
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#include "../tellico_debug.h"
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#include <kmdcodec.h>
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#include <tqdatetime.h>
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using Tellico::Fetch::AmazonRequest;
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AmazonRequest::AmazonRequest(const KURL& site_, const TQString& key_) : m_siteUrl(site_), m_key(key_) {
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}
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KURL AmazonRequest::signedRequest(const TQMap<TQString, TQString>& params_) const {
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TQMap<TQString, TQString> allParams = params_;
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allParams.insert(TQString::fromLatin1("Timestamp"),
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TQDateTime::currentDateTime(TQt::UTC).toString(TQt::ISODate));
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TQString query;
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// has to be a map so that the query elements are sorted
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TQMap<TQString, TQString>::Iterator it;
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for ( it = allParams.begin(); it != allParams.end(); ++it ) {
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query += KURL::encode_string(it.key());
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query += '=';
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query += KURL::encode_string(it.data());
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query += '&';
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}
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// remove last '&'
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query.truncate(query.length()-1);
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const TQCString toSign = "GET\n"
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+ m_siteUrl.host().utf8() + '\n'
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+ m_siteUrl.path().utf8() + '\n'
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+ query.latin1();
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TQByteArray hmac_buffer;
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hmac_buffer.fill('\0', SHA256_DIGEST_SIZE);
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// subtract one from string size for toSign, not exactly sure why
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hmac_sha256(reinterpret_cast<unsigned char*>(const_cast<char*>(m_key.latin1())), m_key.length(),
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reinterpret_cast<unsigned char*>(toSign.data()), toSign.size()-1,
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reinterpret_cast<unsigned char*>(hmac_buffer.data()), hmac_buffer.size());
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const TQString sig = KURL::encode_string(KCodecs::base64Encode(hmac_buffer));
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// myDebug() << sig << endl;
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KURL url = m_siteUrl;
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url.setQuery(query + "&Signature=" + sig);
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return url;
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}
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