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/*
 * Copyright (c) 2011 Tobias Markmann
 * Licensed under the simplified BSD license.
 * See Documentation/Licenses/BSD-simplified.txt for more information.
 */

/*
 * Copyright (c) 2014-2016 Isode Limited.
 * All rights reserved.
 * See the COPYING file for more information.
 */

#include <Swiften/Parser/PayloadParsers/StreamInitiationFileInfoParser.h>

#include <boost/lexical_cast.hpp>
#include <boost/optional.hpp>

#include <Swiften/Base/DateTime.h>
#include <Swiften/Base/Log.h>

namespace Swift {

StreamInitiationFileInfoParser::StreamInitiationFileInfoParser() : level(0), parseDescription(false) {

}

void StreamInitiationFileInfoParser::handleStartElement(const std::string& element, const std::string&, const AttributeMap& attributes) {
    if (level == 0) {
        getPayloadInternal()->setName(attributes.getAttributeValue("name").get_value_or(""));
        getPayloadInternal()->setHash(attributes.getAttributeValue("hash").get_value_or(""));
        getPayloadInternal()->setAlgo(attributes.getAttributeValue("algo").get_value_or("md5"));
        try {
            getPayloadInternal()->setSize(boost::lexical_cast<boost::uintmax_t>(attributes.getAttributeValue("size").get_value_or("0")));
        } catch (boost::bad_lexical_cast &) {
            getPayloadInternal()->setSize(0);
        }
        getPayloadInternal()->setDate(stringToDateTime(attributes.getAttributeValue("date").get_value_or("")));
    } else if (level == 1) {
        if (element == "desc") {
            parseDescription = true;
        } else {
            parseDescription = false;
            if (element == "range") {
                boost::uintmax_t offset = 0;
                try {
                    offset = boost::lexical_cast<boost::uintmax_t>(attributes.getAttributeValue("offset").get_value_or("0"));
                } catch (boost::bad_lexical_cast &) {
                    offset = 0;
                }
                if (offset == 0) {
                    getPayloadInternal()->setSupportsRangeRequests(true);
                } else {
                    getPayloadInternal()->setRangeOffset(offset);
                }
            }
        }
    }
    ++level;
}

void StreamInitiationFileInfoParser::handleEndElement(const std::string& element, const std::string&) {
    --level;
    if (parseDescription && element == "desc") {
        parseDescription = false;
        getPayloadInternal()->setDescription(desc);
    }
}

void StreamInitiationFileInfoParser::handleCharacterData(const std::string& data) {
    if (parseDescription) {
        desc += data;
    }
}

}