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85 lines
2.2 KiB
C++
85 lines
2.2 KiB
C++
#ifndef WEBCC_HTTP_MESSAGE_H_
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#define WEBCC_HTTP_MESSAGE_H_
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#include <cassert>
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#include <string>
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#include <utility> // for move()
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#include <vector>
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#include "boost/asio/buffer.hpp" // for const_buffer
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#include "webcc/globals.h"
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namespace webcc {
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struct HttpHeader {
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std::string name;
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std::string value;
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};
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// Base class for HTTP request and response messages.
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class HttpMessage {
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public:
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HttpMessage() : content_length_(kInvalidLength) {}
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virtual ~HttpMessage() = default;
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const std::string& start_line() const { return start_line_; }
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void set_start_line(const std::string& start_line) {
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start_line_ = start_line;
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}
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std::size_t content_length() const { return content_length_; }
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const std::string& content() const { return content_; }
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void SetHeader(const std::string& name, const std::string& value);
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void SetHeader(std::string&& name, std::string&& value);
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// E.g., "application/json; charset=utf-8"
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void SetContentType(const std::string& media_type,
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const std::string& charset);
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void SetContent(std::string&& content, bool set_length);
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// Make the message (e.g., update start line).
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// Must be called before ToBuffers()!
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virtual void Prepare() = 0;
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// Convert the message into a vector of buffers. The buffers do not own the
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// underlying memory blocks, therefore the message object must remain valid
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// and not be changed until the write operation has completed.
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std::vector<boost::asio::const_buffer> ToBuffers() const;
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// Dump to output stream.
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void Dump(std::ostream& os, std::size_t indent = 0,
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const std::string& prefix = "") const;
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// Dump to string, only used by logger.
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std::string Dump(std::size_t indent = 0,
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const std::string& prefix = "") const;
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protected:
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void SetContentLength(std::size_t content_length) {
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content_length_ = content_length;
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SetHeader(http::headers::kContentLength, std::to_string(content_length));
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}
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// Start line with trailing CRLF.
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std::string start_line_;
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std::size_t content_length_;
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std::vector<HttpHeader> headers_;
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std::string content_;
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};
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std::ostream& operator<<(std::ostream& os, const HttpMessage& message);
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} // namespace webcc
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#endif // WEBCC_HTTP_MESSAGE_H_
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