SpamUtil.h

#ifndef SPAMUTIL_H
#define SPAMUTIL_H

/*
  This email filter was written by Ian Kaplan, Bear Products
  International.  It is copyrighted by Ian Kaplan, 2004,
  www.bearcave.com.

  You have permission to use this software without restriction on two
  conditions:

    1. You must preserve this copyright notice in this software and
       any software derived from it.

    2. You accept any risk entailed in using this software.  By
       using this software, you acknowledge that you have a
       sophisticated background in software engineering and 
       understand the way this software functions.  You further
       acknowledge that using this software may result in the
       irretrievable loss of important e-email and you alone
       are responsible for this loss.

  If either of these conditions are unacceptable, you may not use any
  part of this software.

 */

#include "MailFilter.h"
#include "SpamParameters.h"

class SpamUtil
{
 private:
  SpamUtil( const SpamUtil &rhs );

 public:
  // email type synthesized from the Content-Type and Content-Transfer-Encoding
  typedef enum { BAD_CONT, 
                 UNKNOWN,
                 BLANK,
                 HTML, 
                 TEXT, 
                 MULTIPART, 
                 AUDIO, 
                 IMAGE, 
                 APPLICATION,
                 WINDOZ, 
                 BASE64 } contentType;

 public:
  SpamUtil() {}
  ~SpamUtil() {}
  static const int getFileSize( FILE *fp, const char *fileName, char *msgbuf );
  static const char *trimEnd(char *str );
  static void trim(const char * str );
  static const char *findColon( const char *buf );
  static const char *skipWhiteSpace( const char *pBuf );
  static bool isBlankLine(const char *buf);
  static void strncpy(char *pDest, const char *pSrc, size_t destSize );
  static void toLower(char *dest, const char *src);
  static void toLower(char *dest, const char *src, size_t size);
  static bool match(const char *bufStart,
                    const size_t len,
                    const char *word );
  static bool match(const char *bufStart,
                    const char *bufEnd,
                    const char *word );
  static contentType classifySection( const char *buf );
  const char *classificationToStr( MailFilter::classification klass );
  static const char *typeToStr( contentType type );
  static MailFilter::classification checkLine(const char *buf, 
                                              SpamParameters &params,
                                              char *foundStr,
                                              const size_t foundStrSize );
};

#endif

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