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// MultipartParser.h
// Declares the cMultipartParser class that parses messages in "multipart/*" encoding into the separate parts
#pragma once
#include "EnvelopeParser.h"
class cMultipartParser :
protected cEnvelopeParser::cCallbacks
{
public:
class cCallbacks
{
public:
// Force a virtual destructor in descendants:
virtual ~cCallbacks() {}
/// Called when a new part starts
virtual void OnPartStart(void) = 0;
/// Called when a complete header line is received for a part
virtual void OnPartHeader(const AString & a_Key, const AString & a_Value) = 0;
/// Called when body for a part is received
virtual void OnPartData(const char * a_Data, int a_Size) = 0;
/// Called when the current part ends
virtual void OnPartEnd(void) = 0;
} ;
/// Creates the parser, expects to find the boundary in a_ContentType
cMultipartParser(const AString & a_ContentType, cCallbacks & a_Callbacks);
/// Parses more incoming data
void Parse(const char * a_Data, int a_Size);
protected:
/// The callbacks to call for various parsing events
cCallbacks & m_Callbacks;
/// True if the data parsed so far is valid; if false, further parsing is skipped
bool m_IsValid;
/// Parser for each part's envelope
cEnvelopeParser m_EnvelopeParser;
/// Buffer for the incoming data until it is parsed
AString m_IncomingData;
/// The boundary, excluding both the initial "--" and the terminating CRLF
AString m_Boundary;
/// Set to true if some data for the current part has already been signalized to m_Callbacks. Used for proper CRLF inserting.
bool m_HasHadData;
/// Parse one line of incoming data. The CRLF has already been stripped from a_Data / a_Size
void ParseLine(const char * a_Data, int a_Size);
/// Parse one line of incoming data in the headers section of a part. The CRLF has already been stripped from a_Data / a_Size
void ParseHeaderLine(const char * a_Data, int a_Size);
// cEnvelopeParser overrides:
virtual void OnHeaderLine(const AString & a_Key, const AString & a_Value) override;
} ;
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