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RetroShare/libretroshare/src/serialiser/rsmsgitems.cc
thunder2 342768e626 improvements messages: 
- save msgId in configuration file
- enable previous improvements read/unread state and tags

new function for creating backups of a file
bool createBackup (std::string sFilename, unsigned int nCount = 5);

currently its only available for windows compile. maybe there is a linux developer who change it for linux.


git-svn-id: http://svn.code.sf.net/p/retroshare/code/trunk@3064 b45a01b8-16f6-495d-af2f-9b41ad6348cc
2010-06-04 23:39:33 +00:00

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/*
* libretroshare/src/serialiser: rsbaseitems.cc
*
* RetroShare Serialiser.
*
* Copyright 2007-2008 by Robert Fernie.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License Version 2 as published by the Free Software Foundation.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
* USA.
*
* Please report all bugs and problems to "retroshare@lunamutt.com".
*
*/
#include <stdexcept>
#include "serialiser/rsbaseserial.h"
#include "serialiser/rsmsgitems.h"
#include "serialiser/rstlvbase.h"
/***
#define RSSERIAL_DEBUG 1
***/
#include <iostream>
/*************************************************************************/
std::ostream& RsChatMsgItem::print(std::ostream &out, uint16_t indent)
{
printRsItemBase(out, "RsChatMsgItem", indent);
uint16_t int_Indent = indent + 2;
printIndent(out, int_Indent);
out << "QblogMs " << chatFlags << std::endl;
printIndent(out, int_Indent);
out << "sendTime: " << sendTime << std::endl;
printIndent(out, int_Indent);
std::string cnv_message(message.begin(), message.end());
out << "msg: " << cnv_message << std::endl;
printRsItemEnd(out, "RsChatMsgItem", indent);
return out;
}
std::ostream& RsChatStatusItem::print(std::ostream &out, uint16_t indent)
{
printRsItemBase(out, "RsChatStatusItem", indent);
uint16_t int_Indent = indent + 2;
printIndent(out, int_Indent);
out << "Status string: " << status_string << std::endl;
out << "Flags : " << (void*)flags << std::endl;
printRsItemEnd(out, "RsChatStatusItem", indent);
return out;
}
std::ostream& RsChatAvatarItem::print(std::ostream &out, uint16_t indent)
{
printRsItemBase(out, "RsChatAvatarItem", indent);
uint16_t int_Indent = indent + 2;
printIndent(out, int_Indent);
out << "Image size: " << image_size << std::endl;
printRsItemEnd(out, "RsChatStatusItem", indent);
return out;
}
RsItem *RsChatSerialiser::deserialise(void *data, uint32_t *pktsize)
{
uint32_t rstype = getRsItemId(data);
uint32_t rssize = getRsItemSize(data);
#ifdef CHAT_DEBUG
std::cerr << "deserializing packet..."<< std::endl ;
#endif
// look what we have...
if (*pktsize < rssize) /* check size */
{
#ifdef CHAT_DEBUG
std::cerr << "chat deserialisation: not enough size: pktsize=" << *pktsize << ", rssize=" << rssize << std::endl ;
#endif
return NULL; /* not enough data */
}
/* set the packet length */
*pktsize = rssize;
/* ready to load */
if ((RS_PKT_VERSION_SERVICE != getRsItemVersion(rstype)) || (RS_SERVICE_TYPE_CHAT != getRsItemService(rstype)))
{
#ifdef CHAT_DEBUG
std::cerr << "chat deserialisation: wrong type !" << std::endl ;
#endif
return NULL; /* wrong type */
}
switch(getRsItemSubType(rstype))
{
case RS_PKT_SUBTYPE_DEFAULT: return new RsChatMsgItem(data,*pktsize) ;
case RS_PKT_SUBTYPE_CHAT_STATUS: return new RsChatStatusItem(data,*pktsize) ;
case RS_PKT_SUBTYPE_CHAT_AVATAR: return new RsChatAvatarItem(data,*pktsize) ;
default:
std::cerr << "Unknown packet type in chat!" << std::endl ;
return NULL ;
}
}
uint32_t RsChatMsgItem::serial_size()
{
uint32_t s = 8; /* header */
s += 4; /* chatFlags */
s += 4; /* sendTime */
s += GetTlvWideStringSize(message);
return s;
}
uint32_t RsChatStatusItem::serial_size()
{
uint32_t s = 8; /* header */
s += 4 ; // flags
s += GetTlvStringSize(status_string); /* status */
return s;
}
uint32_t RsChatAvatarItem::serial_size()
{
uint32_t s = 8; /* header */
s += 4 ; // size
s += image_size ; // data
return s;
}
RsChatAvatarItem::~RsChatAvatarItem()
{
if(image_data != NULL)
{
delete[] image_data ;
image_data = NULL ;
}
}
/* serialise the data to the buffer */
bool RsChatMsgItem::serialise(void *data, uint32_t& pktsize)
{
uint32_t tlvsize = serial_size() ;
uint32_t offset = 0;
if (pktsize < tlvsize)
return false; /* not enough space */
pktsize = tlvsize;
bool ok = true;
ok &= setRsItemHeader(data, tlvsize, PacketId(), tlvsize);
#ifdef CHAT_DEBUG
std::cerr << "RsChatSerialiser::serialiseItem() Header: " << ok << std::endl;
std::cerr << "RsChatSerialiser::serialiseItem() Size: " << tlvsize << std::endl;
#endif
/* skip the header */
offset += 8;
/* add mandatory parts first */
ok &= setRawUInt32(data, tlvsize, &offset, chatFlags);
ok &= setRawUInt32(data, tlvsize, &offset, sendTime);
ok &= SetTlvWideString(data, tlvsize, &offset, TLV_TYPE_WSTR_MSG, message);
if (offset != tlvsize)
{
ok = false;
#ifdef CHAT_DEBUG
std::cerr << "RsChatSerialiser::serialiseItem() Size Error! " << std::endl;
#endif
}
#ifdef CHAT_DEBUG
std::cerr << "computed size: " << 256*((unsigned char*)data)[6]+((unsigned char*)data)[7] << std::endl ;
#endif
return ok;
}
bool RsChatStatusItem::serialise(void *data, uint32_t& pktsize)
{
uint32_t tlvsize = serial_size() ;
uint32_t offset = 0;
if (pktsize < tlvsize)
return false; /* not enough space */
pktsize = tlvsize;
bool ok = true;
ok &= setRsItemHeader(data, tlvsize, PacketId(), tlvsize);
#ifdef CHAT_DEBUG
std::cerr << "RsChatSerialiser serialising chat status item." << std::endl;
std::cerr << "RsChatSerialiser::serialiseItem() Header: " << ok << std::endl;
std::cerr << "RsChatSerialiser::serialiseItem() Size: " << tlvsize << std::endl;
#endif
/* skip the header */
offset += 8;
/* add mandatory parts first */
ok &= setRawUInt32(data, tlvsize, &offset, flags);
ok &= SetTlvString(data, tlvsize, &offset,TLV_TYPE_STR_MSG, status_string);
if (offset != tlvsize)
{
ok = false;
#ifdef CHAT_DEBUG
std::cerr << "RsChatSerialiser::serialiseItem() Size Error! " << std::endl;
#endif
}
#ifdef CHAT_DEBUG
std::cerr << "computed size: " << 256*((unsigned char*)data)[6]+((unsigned char*)data)[7] << std::endl ;
#endif
return ok;
}
bool RsChatAvatarItem::serialise(void *data, uint32_t& pktsize)
{
uint32_t tlvsize = serial_size() ;
uint32_t offset = 0;
if (pktsize < tlvsize)
return false; /* not enough space */
pktsize = tlvsize;
bool ok = true;
ok &= setRsItemHeader(data, tlvsize, PacketId(), tlvsize);
#ifdef CHAT_DEBUG
std::cerr << "RsChatSerialiser serialising chat avatar item." << std::endl;
std::cerr << "RsChatSerialiser::serialiseItem() Header: " << ok << std::endl;
std::cerr << "RsChatSerialiser::serialiseItem() Size: " << tlvsize << std::endl;
#endif
/* skip the header */
offset += 8;
/* add mandatory parts first */
ok &= setRawUInt32(data, tlvsize, &offset,image_size);
memcpy((void*)( (unsigned char *)data + offset),image_data,image_size) ;
offset += image_size ;
if (offset != tlvsize)
{
ok = false;
#ifdef CHAT_DEBUG
std::cerr << "RsChatSerialiser::serialiseItem() Size Error! " << std::endl;
#endif
}
#ifdef CHAT_DEBUG
std::cerr << "computed size: " << 256*((unsigned char*)data)[6]+((unsigned char*)data)[7] << std::endl ;
#endif
return ok;
}
RsChatMsgItem::RsChatMsgItem(void *data,uint32_t size)
: RsChatItem(RS_PKT_SUBTYPE_DEFAULT)
{
uint32_t offset = 8; // skip the header
uint32_t rssize = getRsItemSize(data);
bool ok = true ;
/* get mandatory parts first */
ok &= getRawUInt32(data, rssize, &offset, &chatFlags);
ok &= getRawUInt32(data, rssize, &offset, &sendTime);
ok &= GetTlvWideString(data, rssize, &offset, TLV_TYPE_WSTR_MSG, message);
#ifdef CHAT_DEBUG
std::cerr << "Building new chat msg item." << std::endl ;
#endif
if (offset != rssize)
std::cerr << "Size error while deserializing." << std::endl ;
if (!ok)
std::cerr << "Unknown error while deserializing." << std::endl ;
}
RsChatStatusItem::RsChatStatusItem(void *data,uint32_t size)
: RsChatItem(RS_PKT_SUBTYPE_CHAT_STATUS)
{
uint32_t offset = 8; // skip the header
uint32_t rssize = getRsItemSize(data);
bool ok = true ;
#ifdef CHAT_DEBUG
std::cerr << "Building new chat status item." << std::endl ;
#endif
/* get mandatory parts first */
ok &= getRawUInt32(data, rssize, &offset, &flags);
ok &= GetTlvString(data, rssize, &offset,TLV_TYPE_STR_MSG, status_string);
if (offset != rssize)
std::cerr << "Size error while deserializing." << std::endl ;
if (!ok)
std::cerr << "Unknown error while deserializing." << std::endl ;
}
RsChatAvatarItem::RsChatAvatarItem(void *data,uint32_t size)
: RsChatItem(RS_PKT_SUBTYPE_CHAT_STATUS)
{
uint32_t offset = 8; // skip the header
uint32_t rssize = getRsItemSize(data);
bool ok = true ;
#ifdef CHAT_DEBUG
std::cerr << "Building new chat status item." << std::endl ;
#endif
/* get mandatory parts first */
ok &= getRawUInt32(data, rssize, &offset,&image_size);
image_data = new unsigned char[image_size] ;
memcpy(image_data,(void*)((unsigned char*)data+offset),image_size) ;
offset += image_size ;
if (offset != rssize)
std::cerr << "Size error while deserializing." << std::endl ;
if (!ok)
std::cerr << "Unknown error while deserializing." << std::endl ;
}
/*************************************************************************/
RsMsgItem::~RsMsgItem()
{
return;
}
void RsMsgItem::clear()
{
msgId = 0;
msgFlags = 0;
sendTime = 0;
recvTime = 0;
subject.clear();
message.clear();
msgto.TlvClear();
msgcc.TlvClear();
msgbcc.TlvClear();
attachment.TlvClear();
}
std::ostream &RsMsgItem::print(std::ostream &out, uint16_t indent)
{
printRsItemBase(out, "RsMsgItem", indent);
uint16_t int_Indent = indent + 2;
printIndent(out, int_Indent);
out << "msgId (not serialised): " << msgId << std::endl;
printIndent(out, int_Indent);
out << "msgFlags: " << msgFlags << std::endl;
printIndent(out, int_Indent);
out << "sendTime: " << sendTime << std::endl;
printIndent(out, int_Indent);
out << "recvTime: " << recvTime << std::endl;
printIndent(out, int_Indent);
out << "Message To: " << std::endl;
msgto.print(out, int_Indent);
printIndent(out, int_Indent);
out << "Message CC: " << std::endl;
msgcc.print(out, int_Indent);
printIndent(out, int_Indent);
out << "Message BCC: " << std::endl;
msgbcc.print(out, int_Indent);
printIndent(out, int_Indent);
std::string cnv_subject(subject.begin(), subject.end());
out << "subject: " << cnv_subject << std::endl;
printIndent(out, int_Indent);
std::string cnv_message(message.begin(), message.end());
out << "msg: " << cnv_message << std::endl;
printIndent(out, int_Indent);
out << "Attachment: " << std::endl;
attachment.print(out, int_Indent);
printRsItemEnd(out, "RsMsgItem", indent);
return out;
}
uint32_t RsMsgSerialiser::sizeItem(RsMsgItem *item)
{
uint32_t s = 8; /* header */
s += 4; /* msgFlags */
s += 4; /* sendTime */
s += 4; /* recvTime */
s += GetTlvWideStringSize(item->subject);
s += GetTlvWideStringSize(item->message);
s += item->msgto.TlvSize();
s += item->msgcc.TlvSize();
s += item->msgbcc.TlvSize();
s += item->attachment.TlvSize();
if (m_bConfiguration) {
// serialise msgId too
s += 4;
}
return s;
}
/* serialise the data to the buffer */
bool RsMsgSerialiser::serialiseItem(RsMsgItem *item, void *data, uint32_t *pktsize)
{
uint32_t tlvsize = sizeItem(item);
uint32_t offset = 0;
if (*pktsize < tlvsize)
return false; /* not enough space */
*pktsize = tlvsize;
bool ok = true;
ok &= setRsItemHeader(data, tlvsize, item->PacketId(), tlvsize);
#ifdef RSSERIAL_DEBUG
std::cerr << "RsMsgSerialiser::serialiseItem() Header: " << ok << std::endl;
std::cerr << "RsMsgSerialiser::serialiseItem() Size: " << tlvsize << std::endl;
#endif
/* skip the header */
offset += 8;
/* add mandatory parts first */
ok &= setRawUInt32(data, tlvsize, &offset, item->msgFlags);
ok &= setRawUInt32(data, tlvsize, &offset, item->sendTime);
ok &= setRawUInt32(data, tlvsize, &offset, item->recvTime);
ok &= SetTlvWideString(data,tlvsize,&offset,TLV_TYPE_WSTR_SUBJECT,item->subject);
ok &= SetTlvWideString(data, tlvsize, &offset, TLV_TYPE_WSTR_MSG, item->message);
ok &= item->msgto.SetTlv(data, tlvsize, &offset);
ok &= item->msgcc.SetTlv(data, tlvsize, &offset);
ok &= item->msgbcc.SetTlv(data, tlvsize, &offset);
ok &= item->attachment.SetTlv(data, tlvsize, &offset);
if (m_bConfiguration) {
// serialise msgId too
ok &= setRawUInt32(data, tlvsize, &offset, item->msgId);
}
if (offset != tlvsize)
{
ok = false;
#ifdef RSSERIAL_DEBUG
std::cerr << "RsMsgSerialiser::serialiseItem() Size Error! " << std::endl;
#endif
}
return ok;
}
RsMsgItem *RsMsgSerialiser::deserialiseItem(void *data, uint32_t *pktsize)
{
/* get the type and size */
uint32_t rstype = getRsItemId(data);
uint32_t rssize = getRsItemSize(data);
uint32_t offset = 0;
if ((RS_PKT_VERSION_SERVICE != getRsItemVersion(rstype)) ||
(RS_SERVICE_TYPE_MSG != getRsItemService(rstype)) ||
(RS_PKT_SUBTYPE_DEFAULT != getRsItemSubType(rstype)))
{
return NULL; /* wrong type */
}
if (*pktsize < rssize) /* check size */
return NULL; /* not enough data */
/* set the packet length */
*pktsize = rssize;
bool ok = true;
/* ready to load */
RsMsgItem *item = new RsMsgItem();
item->clear();
/* skip the header */
offset += 8;
/* get mandatory parts first */
ok &= getRawUInt32(data, rssize, &offset, &(item->msgFlags));
ok &= getRawUInt32(data, rssize, &offset, &(item->sendTime));
ok &= getRawUInt32(data, rssize, &offset, &(item->recvTime));
ok &= GetTlvWideString(data,rssize,&offset,TLV_TYPE_WSTR_SUBJECT,item->subject);
ok &= GetTlvWideString(data, rssize, &offset, TLV_TYPE_WSTR_MSG, item->message);
ok &= item->msgto.GetTlv(data, rssize, &offset);
ok &= item->msgcc.GetTlv(data, rssize, &offset);
ok &= item->msgbcc.GetTlv(data, rssize, &offset);
ok &= item->attachment.GetTlv(data, rssize, &offset);
if (m_bConfiguration) {
// deserialise msgId too
// ok &= getRawUInt32(data, rssize, &offset, &(item->msgId));
getRawUInt32(data, rssize, &offset, &(item->msgId)); //use this line for backward compatibility
}
if (offset != rssize)
{
/* error */
delete item;
return NULL;
}
if (!ok)
{
delete item;
return NULL;
}
return item;
}
uint32_t RsMsgSerialiser::size(RsItem *item)
{
return sizeItem((RsMsgItem *) item);
}
bool RsMsgSerialiser::serialise(RsItem *item, void *data, uint32_t *pktsize)
{
return serialiseItem((RsMsgItem *) item, data, pktsize);
}
RsItem *RsMsgSerialiser::deserialise(void *data, uint32_t *pktsize)
{
return deserialiseItem(data, pktsize);
}
/*************************************************************************/
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