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// HTTPRequestParser.h
// Declares the cHTTPRequestParser class representing the parser for incoming HTTP requests
#pragma once
#include "HTTPMessage.h"
#include "EnvelopeParser.h"
class cHTTPRequestParser :
public cHTTPMessage,
protected cEnvelopeParser::cCallbacks
{
typedef cHTTPMessage super;
public:
cHTTPRequestParser(void);
/** Parses the request line and then headers from the received data.
Returns the number of bytes consumed or AString::npos number for error.
Once it has fully parsed all the headers, doesn't consume any more data. */
size_t ParseHeaders(const char * a_Data, size_t a_Size);
/** Returns true if the request did contain a Content-Length header */
bool HasReceivedContentLength(void) const { return (m_ContentLength != AString::npos); }
/** Returns the method used in the request */
const AString & GetMethod(void) const { return m_Method; }
/** Returns the URL used in the request */
const AString & GetURL(void) const { return m_URL; }
/** Returns the URL used in the request, without any parameters */
AString GetBareURL(void) const;
/** Sets the UserData pointer that is stored within this request.
The request doesn't touch this data (doesn't delete it)! */
void SetUserData(void * a_UserData) { m_UserData = a_UserData; }
/** Retrieves the UserData pointer that has been stored within this request. */
void * GetUserData(void) const { return m_UserData; }
/** Returns true if more data is expected for the request headers */
bool IsInHeaders(void) const { return m_EnvelopeParser.IsInHeaders(); }
/** Returns true if the request did present auth data that was understood by the parser */
bool HasAuth(void) const { return m_HasAuth; }
/** Returns the username that the request presented. Only valid if HasAuth() is true */
const AString & GetAuthUsername(void) const { return m_AuthUsername; }
/** Returns the password that the request presented. Only valid if HasAuth() is true */
const AString & GetAuthPassword(void) const { return m_AuthPassword; }
bool DoesAllowKeepAlive(void) const { return m_AllowKeepAlive; }
protected:
/** Parser for the envelope data */
cEnvelopeParser m_EnvelopeParser;
/** True if the data received so far is parsed successfully. When false, all further parsing is skipped */
bool m_IsValid;
/** Bufferred incoming data, while parsing for the request line */
AString m_IncomingHeaderData;
/** Method of the request (GET / PUT / POST / ...) */
AString m_Method;
/** Full URL of the request */
AString m_URL;
/** Data that the HTTPServer callbacks are allowed to store. */
void * m_UserData;
/** Set to true if the request contains auth data that was understood by the parser */
bool m_HasAuth;
/** The username used for auth */
AString m_AuthUsername;
/** The password used for auth */
AString m_AuthPassword;
/** Set to true if the request indicated that it supports keepalives.
If false, the server will close the connection once the request is finished */
bool m_AllowKeepAlive;
/** Parses the incoming data for the first line (RequestLine)
Returns the number of bytes consumed, or AString::npos for an error
*/
size_t ParseRequestLine(const char * a_Data, size_t a_Size);
// cEnvelopeParser::cCallbacks overrides:
virtual void OnHeaderLine(const AString & a_Key, const AString & a_Value) override;
} ;
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