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93 lines
2.1 KiB
C++
93 lines
2.1 KiB
C++
#ifndef WEBCC_PARSER_H_
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#define WEBCC_PARSER_H_
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#include <string>
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#include "webcc/common.h"
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#include "webcc/globals.h"
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namespace webcc {
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class Message;
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// HTTP request and response parser.
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class Parser {
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public:
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explicit Parser(Message* message);
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virtual ~Parser() = default;
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Parser(const Parser&) = delete;
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Parser& operator=(const Parser&) = delete;
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void Init(Message* message);
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bool finished() const {
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return finished_;
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}
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std::size_t content_length() const {
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return content_length_;
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}
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bool Parse(const char* data, std::size_t length);
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protected:
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// Reset for next parse.
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void Reset();
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// Parse headers from pending data.
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// Return false only on syntax errors.
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bool ParseHeaders();
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// Get next line (using delimiter CRLF) from the pending data.
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// The line will not contain a trailing CRLF.
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// If |erase| is true, the line, as well as the trailing CRLF, will be erased
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// from the pending data.
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bool GetNextLine(std::size_t off, std::string* line, bool erase);
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virtual bool ParseStartLine(const std::string& line) = 0;
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bool ParseHeaderLine(const std::string& line);
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virtual bool ParseContent(const char* data, std::size_t length);
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bool ParseFixedContent(const char* data, std::size_t length);
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bool ParseChunkedContent(const char* data, std::size_t length);
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bool ParseChunkSize();
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// Return false if the compressed content cannot be decompressed.
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bool Finish();
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void AppendContent(const char* data, std::size_t count);
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void AppendContent(const std::string& data);
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bool IsFixedContentFull() const;
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// Check header Content-Encoding to see if the content is compressed.
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bool IsContentCompressed() const;
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protected:
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// The message parsed.
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Message* message_;
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// Data waiting to be parsed.
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std::string pending_data_;
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// Temporary data and helper flags for parsing.
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std::size_t content_length_;
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ContentType content_type_;
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std::string content_;
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bool start_line_parsed_;
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bool content_length_parsed_;
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bool header_ended_;
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bool chunked_;
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std::size_t chunk_size_;
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bool finished_;
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};
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} // namespace webcc
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#endif // WEBCC_PARSER_H_
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