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authorMattes D <github@xoft.cz>2016-01-03 15:59:55 +0100
committerMattes D <github@xoft.cz>2016-03-01 16:19:56 +0100
commitfea556ca1b8aeec975f5276d5d829ee6275841d9 (patch)
tree9a61a61edbb232c01bfb34e1c2959542d470887e /src/HTTP/EnvelopeParser.h
parentAdded HTTPResponseParser. (diff)
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Diffstat (limited to 'src/HTTP/EnvelopeParser.h')
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diff --git a/src/HTTP/EnvelopeParser.h b/src/HTTP/EnvelopeParser.h
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+
+// EnvelopeParser.h
+
+// Declares the cEnvelopeParser class representing a parser for RFC-822 envelope headers, used both in HTTP and in MIME
+
+
+
+
+
+#pragma once
+
+
+
+
+
+class cEnvelopeParser
+{
+public:
+ class cCallbacks
+ {
+ public:
+ // Force a virtual destructor in descendants:
+ virtual ~cCallbacks() {}
+
+ /** Called when a full header line is parsed */
+ virtual void OnHeaderLine(const AString & a_Key, const AString & a_Value) = 0;
+ } ;
+
+
+ cEnvelopeParser(cCallbacks & a_Callbacks);
+
+ /** Parses the incoming data.
+ Returns the number of bytes consumed from the input. The bytes not consumed are not part of the envelope header.
+ Returns AString::npos on error
+ */
+ size_t Parse(const char * a_Data, size_t a_Size);
+
+ /** Makes the parser forget everything parsed so far, so that it can be reused for parsing another datastream */
+ void Reset(void);
+
+ /** Returns true if more input is expected for the envelope header */
+ bool IsInHeaders(void) const { return m_IsInHeaders; }
+
+ /** Sets the IsInHeaders flag; used by cMultipartParser to simplify the parser initial conditions */
+ void SetIsInHeaders(bool a_IsInHeaders) { m_IsInHeaders = a_IsInHeaders; }
+
+public:
+ /** Callbacks to call for the various events */
+ cCallbacks & m_Callbacks;
+
+ /** Set to true while the parser is still parsing the envelope headers. Once set to true, the parser will not consume any more data. */
+ bool m_IsInHeaders;
+
+ /** Buffer for the incoming data until it is parsed */
+ AString m_IncomingData;
+
+ /** Holds the last parsed key; used for line-wrapped values */
+ AString m_LastKey;
+
+ /** Holds the last parsed value; used for line-wrapped values */
+ AString m_LastValue;
+
+
+ /** Notifies the callback of the key / value stored in m_LastKey / m_LastValue, then erases them */
+ void NotifyLast(void);
+
+ /** Parses one line of header data. Returns true if successful */
+ bool ParseLine(const char * a_Data, size_t a_Size);
+} ;
+
+
+
+