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tdepim/libkmime/kmime_content.h

171 lines
5.5 KiB

/*
kmime_content.h
KMime, the KDE internet mail/usenet news message library.
Copyright (c) 2001 the KMime authors.
See file AUTHORS for details
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software Foundation,
Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, US
*/
#ifndef __KMIME_CONTENT_H__
#define __KMIME_CONTENT_H__
//forward declarations
#if 0
class KMime::Headers::Base;
class KMime::Headers::Generic;
class KMime::Headers::ContentType;
class KMime::Headers::CTEncoding;
class KMime::Headers::CDisposition;
class KMime::Headers::List;
#endif
#include "kmime_util.h"
#include "kmime_headers.h"
#include <tqtextstream.h>
namespace KMime {
/** Base class for messages in mime format
It tqcontains all the enums, static functions
and parser-classes, that are needed for
mime handling */
class Base {
public:
//enums
enum articleType { ATmimeContent,
ATremote,
ATlocal };
};
/** This class encapsulates a mime-encoded content.
It parses the given data and creates a tree-like
structure, that represents the structure of the
message */
class KDE_EXPORT Content : public Base {
public:
typedef TQPtrList<KMime::Content> List;
Content();
Content(const TQCString &h, const TQCString &b);
virtual ~Content();
//type
virtual articleType type() { return ATmimeContent; }
//content handling
bool hasContent() { return ( !h_ead.isEmpty() && (!b_ody.isEmpty() || (c_ontents && !c_ontents->isEmpty())) ); }
void setContent(TQStrList *l);
void setContent(const TQCString &s);
virtual void parse();
virtual void assemble();
virtual void clear();
//header access
TQCString head() { return h_ead; }
// extracts and removes the next header from head. The caller has to delete the returned header;
Headers::Generic* getNextHeader(TQCString &head);
virtual Headers::Base* getHeaderByType(const char *type);
virtual void setHeader(Headers::Base *h);
virtual bool removeHeader(const char *type);
bool hasHeader(const char *type) { return (getHeaderByType(type)!=0); }
Headers::ContentType* contentType(bool create=true) { Headers::ContentType *p=0; return getHeaderInstance(p, create); }
Headers::CTEncoding* contentTransferEncoding(bool create=true) { Headers::CTEncoding *p=0; return getHeaderInstance(p, create); }
Headers::CDisposition* contentDisposition(bool create=true) { Headers::CDisposition *p=0; return getHeaderInstance(p, create); }
Headers::CDescription* contentDescription(bool create=true) { Headers::CDescription *p=0; return getHeaderInstance(p, create); }
//content access
int size();
int storageSize();
int lineCount();
TQCString body() { return b_ody; }
void setBody( const TQCString & str ) { b_ody = str; }
TQCString encodedContent(bool useCrLf=false);
TQByteArray decodedContent();
void decodedText(TQString &s, bool trimText=false,
bool removeTrailingNewlines=false);
void decodedText(TQStringList &s, bool trimText=false,
bool removeTrailingNewlines=false);
void fromUnicodeString(const TQString &s);
Content* textContent();
void attachments(List *dst, bool incAlternatives=false);
void addContent(Content *c, bool prepend=false);
void removeContent(Content *c, bool del=false);
void changeEncoding(Headers::contentEncoding e);
//saves the encoded content to the given textstream
// scrambleFromLines: tqreplace "\nFrom " with "\n>From ", this is
// needed to avoid problem with mbox-files
void toStream(TQTextStream &ts, bool scrambleFromLines=false);
// this charset is used for all headers and the body
// if the charset is not declared explictly
TQCString defaultCharset() { return TQCString(d_efaultCS); }
void setDefaultCharset(const TQCString &cs);
// use the default charset even if a different charset is
// declared in the article
bool forceDefaultCS() { return f_orceDefaultCS; }
// enables/disables the force mode, housekeeping.
// works correctly only when the article is completely empty or
// completely loaded
virtual void setForceDefaultCS(bool b);
protected:
TQCString rawHeader(const char *name);
bool decodeText();
template <class T> T* getHeaderInstance(T *ptr, bool create);
TQCString h_ead,
b_ody;
List *c_ontents;
Headers::Base::List *h_eaders;
const char *d_efaultCS;
bool f_orceDefaultCS;
};
// some compilers (for instance Compaq C++) need template inline functions
// here rather than in the *.cpp file
template <class T> T* Content::getHeaderInstance(T *ptr, bool create)
{
T dummy; //needed to access virtual member T::type()
ptr=static_cast <T*> (getHeaderByType(dummy.type()));
if(!ptr && create) { //no such header found, but we need one => create it
ptr=new T(this);
if(!(h_eaders)) {
h_eaders=new Headers::Base::List();
h_eaders->setAutoDelete(true);
}
h_eaders->append(ptr);
}
return ptr;
}
} // namespace KMime
#endif // __KMIME_CONTENT_H__