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- /***************************************************************************
- *
- * Project _____ __ ____ _ _
- * ( _ ) /__\ (_ _)_| |_ _| |_
- * )(_)( /(__)\ )( (_ _)(_ _)
- * (_____)(__)(__)(__) |_| |_|
- *
- *
- * Copyright 2018-present, Leonid Stryzhevskyi <lganzzzo@gmail.com>
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- *
- ***************************************************************************/
- #include "RequestHeadersReader.hpp"
- namespace oatpp { namespace web { namespace protocol { namespace http { namespace incoming {
- v_io_size RequestHeadersReader::readHeadersSectionIterative(ReadHeadersIteration& iteration,
- data::stream::InputStreamBufferedProxy* stream,
- async::Action& action)
- {
- v_buff_size desiredToRead = m_readChunkSize;
- if(m_bufferStream->getCurrentPosition() + desiredToRead > m_maxHeadersSize) {
- desiredToRead = m_maxHeadersSize - m_bufferStream->getCurrentPosition();
- if(desiredToRead <= 0) {
- return -1;
- }
- }
- m_bufferStream->reserveBytesUpfront(desiredToRead);
- auto bufferData = m_bufferStream->getData() + m_bufferStream->getCurrentPosition();
- auto res = stream->peek(bufferData, desiredToRead, action);
- if(res > 0) {
- m_bufferStream->setCurrentPosition(m_bufferStream->getCurrentPosition() + res);
- for(v_buff_size i = 0; i < res; i ++) {
- iteration.accumulator <<= 8;
- iteration.accumulator |= bufferData[i];
- if(iteration.accumulator == SECTION_END) {
- stream->commitReadOffset(i + 1);
- iteration.done = true;
- return res;
- }
- }
- stream->commitReadOffset(res);
- }
-
- return res;
-
- }
-
- RequestHeadersReader::Result RequestHeadersReader::readHeaders(data::stream::InputStreamBufferedProxy* stream,
- http::HttpError::Info& error) {
- m_bufferStream->setCurrentPosition(0);
- RequestHeadersReader::Result result;
- ReadHeadersIteration iteration;
- async::Action action;
- while(!iteration.done) {
- error.ioStatus = readHeadersSectionIterative(iteration, stream, action);
- if(!action.isNone()) {
- OATPP_LOGE("[oatpp::web::protocol::http::incoming::RequestHeadersReader::readHeaders]", "Error. Async action is unexpected.");
- throw std::runtime_error("[oatpp::web::protocol::http::incoming::RequestHeadersReader::readHeaders]: Error. Async action is unexpected.");
- }
- if(error.ioStatus > 0) {
- continue;
- } else if(error.ioStatus == IOError::RETRY_READ || error.ioStatus == IOError::RETRY_WRITE) {
- continue;
- } else {
- break;
- }
- }
-
- if(error.ioStatus > 0) {
- oatpp::parser::Caret caret ((const char*) m_bufferStream->getData(), m_bufferStream->getCurrentPosition());
- http::Status status;
- http::Parser::parseRequestStartingLine(result.startingLine, nullptr, caret, status);
- if(status.code == 0) {
- http::Parser::parseHeaders(result.headers, nullptr, caret, status);
- }
- }
-
- return result;
-
- }
-
-
- oatpp::async::CoroutineStarterForResult<const RequestHeadersReader::Result&>
- RequestHeadersReader::readHeadersAsync(const std::shared_ptr<data::stream::InputStreamBufferedProxy>& stream)
- {
-
- class ReaderCoroutine : public oatpp::async::CoroutineWithResult<ReaderCoroutine, const Result&> {
- private:
- std::shared_ptr<data::stream::InputStreamBufferedProxy> m_stream;
- RequestHeadersReader* m_this;
- ReadHeadersIteration m_iteration;
- RequestHeadersReader::Result m_result;
- public:
-
- ReaderCoroutine(RequestHeadersReader* _this,
- const std::shared_ptr<data::stream::InputStreamBufferedProxy>& stream)
- : m_stream(stream)
- , m_this(_this)
- {
- m_this->m_bufferStream->setCurrentPosition(0);
- }
-
- Action act() override {
- async::Action action;
- auto res = m_this->readHeadersSectionIterative(m_iteration, m_stream.get(), action);
- if(!action.isNone()) {
- return action;
- }
- if(m_iteration.done) {
- return yieldTo(&ReaderCoroutine::parseHeaders);
- } else {
- if (res > 0) {
- return repeat();
- } else if (res == IOError::RETRY_READ || res == IOError::RETRY_WRITE) {
- return repeat();
- }
- }
- return error<Error>("[oatpp::web::protocol::http::incoming::RequestHeadersReader::readHeadersAsync()]: Error. Error reading connection stream.");
- }
-
- Action parseHeaders() {
- oatpp::parser::Caret caret ((const char*) m_this->m_bufferStream->getData(), m_this->m_bufferStream->getCurrentPosition());
- http::Status status;
- http::Parser::parseRequestStartingLine(m_result.startingLine, nullptr, caret, status);
- if(status.code == 0) {
- http::Parser::parseHeaders(m_result.headers, nullptr, caret, status);
- if(status.code == 0) {
- return _return(m_result);
- } else {
- return error<Error>("[oatpp::web::protocol::http::incoming::RequestHeadersReader::readHeadersAsync()]: Error. Error occurred while parsing headers.");
- }
- } else {
- return error<Error>("[oatpp::web::protocol::http::incoming::RequestHeadersReader::readHeadersAsync()]: Error. Can't parse starting line.");
- }
- }
-
- };
-
- return ReaderCoroutine::startForResult(this, stream);
-
- }
- }}}}}
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