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HttpMessageGenerator.cc
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105 lines (88 loc) · 2.25 KB
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/*
* Copyright (C) 2021 Frank Mertens.
*
* Distribution and use is allowed under the terms of the GNU General Public License version 3
* (see CoreComponents/LICENSE-gpl-3.0).
*
*/
#include <cc/HttpMessageGenerator>
#include <cc/HttpChunkedSink>
namespace cc {
void HttpMessageGenerator::State::setHeader(const String &name, const String &value)
{
header_.establish(name, value);
}
void HttpMessageGenerator::State::transmit()
{
beginTransmission(0);
endTransmission();
}
void HttpMessageGenerator::State::transmit(const String &payload)
{
beginTransmission(payload.count());
if (payload.count() > 0)
write(payload);
endTransmission();
}
void HttpMessageGenerator::State::transmit(const Stream &source)
{
beginTransmission(-1);
Stream{source}.transferTo(payload());
endTransmission();
}
void HttpMessageGenerator::State::setHeader(const Map<String, String> &header)
{
Map<String, String> headerSaved = header_;
header_ = header;
for (const auto &item: headerSaved)
header_.insert(item.key(), item.value());
}
void HttpMessageGenerator::State::writeHeader()
{
polishHeader();
Format sink{stream_};
writeFirstLine(sink);
for (const auto &item: header_)
sink << item.key() << ":" << item.value() << "\r\n";
sink << "\r\n";
headerWritten_ = true;
}
void HttpMessageGenerator::State::beginTransmission(long long contentLength)
{
if (!headerWritten_) {
contentLength_ = contentLength;
writeHeader();
}
}
Stream HttpMessageGenerator::State::payload()
{
if (!payload_) {
if (!headerWritten_) writeHeader();
Stream stream = stream_;
if (contentLength_ < 0) {
stream = HttpChunkedSink{stream};
}
payload_ = TransferMeter{stream};
}
return payload_;
}
void HttpMessageGenerator::State::write(const Bytes &data)
{
payload().write(data);
}
Format HttpMessageGenerator::State::chunk(const String &pattern)
{
return Format{pattern, payload()};
}
Format HttpMessageGenerator::State::chunk()
{
return Format{payload()};
}
void HttpMessageGenerator::State::endTransmission()
{
if (payload_) {
bytesWritten_ = payload_.totalWritten();
payload_ = TransferMeter{};
}
}
} // namespaec cc