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127 lines
3.2 KiB
C++
127 lines
3.2 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/common.h"
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#include "webcc/http_file.h"
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#include "webcc/globals.h"
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namespace webcc {
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class HttpMessage;
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std::ostream& operator<<(std::ostream& os, const HttpMessage& message);
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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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}
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virtual ~HttpMessage() = default;
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const std::string& start_line() const {
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return start_line_;
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}
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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 {
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return content_length_;
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}
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const std::string& content() const {
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return content_;
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}
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bool IsConnectionKeepAlive() const;
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void SetHeader(HttpHeader&& header) {
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headers_.Set(std::move(header.first), std::move(header.second));
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}
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void SetHeader(const std::string& key, const std::string& value) {
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headers_.Set(key, value);
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}
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const std::string& GetHeader(const std::string& key,
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bool* existed = nullptr) const {
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return headers_.Get(key, existed);
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}
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bool HasHeader(const std::string& key) const {
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return headers_.Has(key);
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}
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http::ContentEncoding GetContentEncoding() const;
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// Return true if header Accept-Encoding contains "gzip".
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bool AcceptEncodingGzip() const;
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const ContentType& content_type() const {
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return content_type_;
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}
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// TODO: Set header?
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void SetContentType(const ContentType& content_type) {
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content_type_ = content_type;
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}
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void SetContentType(const std::string& content_type) {
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SetHeader(http::headers::kContentType, content_type);
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}
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// Example: SetContentType("application/json", "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 bool 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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protected:
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// Start line with trailing CRLF.
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// TODO: Don't include trailing CRLF since it's confusing.
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std::string start_line_;
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std::string content_;
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ContentType content_type_;
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std::size_t content_length_;
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HttpHeaders headers_;
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};
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} // namespace webcc
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#endif // WEBCC_HTTP_MESSAGE_H_
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