gecko-dev/mailnews/base/search/public/nsMsgBodyHandler.h

82 lines
2.7 KiB
C++

#ifndef __nsMsgBodyHandler_h
#define __nsMsgBodyHandler_h
#include "nsIMsgSearchScopeTerm.h"
#include "nsIFileSpec.h"
//---------------------------------------------------------------------------
// MSG_BodyHandler: used to retrive lines from POP and IMAP offline messages.
// This is a helper class used by nsMsgSearchTerm::MatchBody
//---------------------------------------------------------------------------
class nsMsgBodyHandler
{
public:
nsMsgBodyHandler (nsIMsgSearchScopeTerm *,
PRUint32 offset,
PRUint32 length,
nsIMsgDBHdr * msg,
nsIMsgDatabase * db);
// we can also create a body handler when doing arbitrary header
// filtering...we need the list of headers and the header size as well
// if we are doing filtering...if ForFilters is false, headers and
// headersSize is ignored!!!
nsMsgBodyHandler (nsIMsgSearchScopeTerm *, PRUint32 offset,
PRUint32 length, nsIMsgDBHdr * msg, nsIMsgDatabase * db,
const char * headers /* NULL terminated list of headers */,
PRUint32 headersSize, PRBool ForFilters);
virtual ~nsMsgBodyHandler();
// returns next message line in buf, up to bufSize bytes.
PRInt32 GetNextLine(char * buf, int bufSize);
// Transformations
void SetStripHtml (PRBool strip) { m_stripHtml = strip; }
void SetStripHeaders (PRBool strip) { m_stripHeaders = strip; }
protected:
void Initialize(); // common initialization code
// filter related methods. For filtering we always use the headers
// list instead of the database...
PRBool m_Filtering;
PRInt32 GetNextFilterLine(char * buf, PRUint32 bufSize);
// pointer into the headers list in the original message hdr db...
const char * m_headers;
PRUint32 m_headersSize;
PRUint32 m_headerBytesRead;
// local / POP related methods
void OpenLocalFolder();
// goes through the mail folder
PRInt32 GetNextLocalLine(char * buf, int bufSize);
nsIMsgSearchScopeTerm *m_scope;
nsCOMPtr <nsIFileSpec> m_fileSpec;
// local file state
// XP_File *m_localFile;
// need a file stream here, I bet
// current offset into the mail folder file.
PRInt32 m_localFileOffset;
PRUint32 m_numLocalLines;
// Offline IMAP related methods & state
nsIMsgDBHdr * m_msgHdr;
nsIMsgDatabase * m_db;
// Transformations
PRBool m_stripHeaders; // PR_TRUE if we're supposed to strip of message headers
PRBool m_stripHtml; // PR_TRUE if we're supposed to strip off HTML tags
PRBool m_passedHeaders; // PR_TRUE if we've already skipped over the headers
PRBool m_messageIsHtml; // PR_TRUE if the Content-type header claims text/html
PRInt32 ApplyTransformations (char *buf, PRInt32 length, PRBool &returnThisLine);
void StripHtml (char *buf);
};
#endif