int WebPDemuxPrevChunk(WebPChunkIterator* iter) {
if (iter != NULL && iter->chunk_num > 1) {
const char* const fourcc =
(const char*)iter->chunk.bytes - CHUNK_HEADER_SIZE;
return SetChunk(fourcc, iter->chunk_num - 1, iter);
}
return 0;
}
int WebPDemuxNextChunk(WebPChunkIterator* iter) {
if (iter != NULL) {
const char* const fourcc =
(const char*)iter->chunk_.bytes_ - CHUNK_HEADER_SIZE;
return SetChunk(fourcc, iter->chunk_num_ + 1, iter);
}
return 0;
}
int WebPDemuxGetChunk(const WebPDemuxer* dmux,
const char fourcc[4], int chunk_num,
WebPChunkIterator* iter) {
if (iter == NULL) return 0;
memset(iter, 0, sizeof(*iter));
iter->private_ = (void*)dmux;
return SetChunk(fourcc, chunk_num, iter);
}
// Overrides SNM_ChunkParserPatcher::Commit() in order to remove the fake "TAKE" line, see
// GetChunk() comments. Also see important comments for SNM_ChunkParserPatcher::Commit()
bool SNM_TakeParserPatcher::Commit(bool _force)
{
if (m_reaObject && (m_updates || _force) && m_chunk->GetLength() && !(GetPlayStateEx(NULL) & 4))
{
// SNM_ChunkParserPatcher::Commit() mod ----->
if (m_fakeTake)
{
m_fakeTake = false;
const char* p = strstr(m_chunk->Get(), "\nNAME ");
// empty item (i.e. no take at all) or NULL takes only
if (!p)
{
p = strstr(m_chunk->Get(), "\nTAKE");
if (p)
{
const char* p2 = p+5;
while (*p2 && p2 < (m_chunk->Get()+m_chunk->GetLength()) && *p2 != '\n') p2++;
if (*p2 == '\n')
m_chunk->DeleteSub((int)(p-m_chunk->Get()), (int)(p2-p));
}
}
// "normal" item
else
{
char* p2 = (char*)(p-1);
while (*p2 && p2 > m_chunk->Get() && *p2 != '\n') p2--;
if (*p2 == '\n' && !strncmp(p2, "\nTAKE", 5))
{
m_chunk->DeleteSub((int)(p2-m_chunk->Get()), (int)(p-p2));
p -= (int)(p-p2);
}
// if there's a "TAKE" before "NAME" it must not be "TAKE NULL"
p--; // we assume it's safe (serious other issues otherwise)
while (*p && p > m_chunk->Get() && *p != '\n') p--;
if (!strncmp(p, "\nTAKE NULL", 10))
m_chunk->DeleteSub((int)(p+5-m_chunk->Get()), 5); // removes " NULL"
}
}
// SNM_ChunkParserPatcher::Commit() mod <-----
if (!SNM_GetSetObjectState(m_reaObject, m_chunk)) {
SetChunk("", 0);
return true;
}
}
return false;
}
void SetDestination(MacAddress mac) {
SetChunk(0, ConstBuf(&mac.m_n64, 6));
}
/** splits message to it's important parts and stores their info in the chunkset mChunks */
bool cMessageDC::SplitChunks()
{
SetChunk(0, 0, mStr.length()); // the zeroth chunk is everywhere the same
switch (mType) { // now try to find chunks one by one
case eDC_SUPPORTS: // single parameter
case eDC_MYHUBURL:
case eDC_KEY:
case eDC_VALIDATENICK:
case eDC_MYPASS:
case eDC_VERSION:
case eDCO_KICK:
case eDC_QUIT:
case eDCO_USERIP:
case eDCO_UNBAN:
case eDCO_WHOIP:
case eDCO_SETTOPIC:
case eDCB_BOTINFO:
case eDCC_MYNICK:
case eDCC_LOCK:
if (mLen < mKWSize)
mError = true;
else
SetChunk(eCH_1_PARAM, mKWSize, mLen - mKWSize);
break;
case eDC_GETINFO:
if (!SplitOnTwo(mKWSize, ' ', eCH_GI_OTHER , eCH_GI_NICK))
mError = true;
break;
case eDC_RCONNECTTOME:
if (!SplitOnTwo(mKWSize, ' ', eCH_RC_NICK, eCH_RC_OTHER))
mError = true;
break;
case eDC_CHAT:
if (!SplitOnTwo(mKWSize, "> ", eCH_CH_NICK, eCH_CH_MSG))
mError = true;
break;
case eDC_CONNECTTOME:
case eDC_MCONNECTTOME:
if (!SplitOnTwo(mKWSize, ' ', eCH_CM_NICK, eCH_CM_ACTIVE))
mError = true;
if (!SplitOnTwo(':', eCH_CM_ACTIVE, eCH_CM_IP, eCH_CM_PORT))
mError = true;
break;
case eDC_TO:
/*
$To: <othernick> From: <mynick> $<<mynick>> <message>
eCH_PM_ALL, eCH_PM_TO, eCH_PM_FROM, eCH_PM_CHMSG, eCH_PM_NICK, eCH_PM_MSG
*/
if (!SplitOnTwo(mKWSize, " From: ", eCH_PM_TO, eCH_PM_FROM))
mError = true;
if (!SplitOnTwo(" $<", eCH_PM_FROM, eCH_PM_FROM, eCH_PM_CHMSG))
mError = true;
if (!SplitOnTwo("> ", eCH_PM_CHMSG, eCH_PM_NICK, eCH_PM_MSG))
mError = true;
break;
case eDC_MCTO:
/*
$MCTo: <othernick> From: <mynick> $<<mynick>> <message>
eCH_MCTO_ALL, eCH_MCTO_TO, eCH_MCTO_FROM, eCH_MCTO_CHMSG, eCH_MCTO_NICK, eCH_MCTO_MSG
*/
if (!SplitOnTwo(mKWSize, " From: ", eCH_MCTO_TO, eCH_MCTO_FROM))
mError = true;
if (!SplitOnTwo(" $<", eCH_MCTO_FROM, eCH_MCTO_FROM, eCH_MCTO_CHMSG))
mError = true;
if (!SplitOnTwo("> ", eCH_MCTO_CHMSG, eCH_MCTO_NICK, eCH_MCTO_MSG))
mError = true;
break;
case eDC_MYINFO:
/*
$MyINFO $ALL <nick> <interest>$ $<speed>$<e-mail>$<sharesize>$
eCH_MI_ALL, eCH_MI_DEST, eCH_MI_NICK, eCH_MI_INFO, eCH_MI_DESC, eCH_MI_SPEED, eCH_MI_MAIL, eCH_MI_SIZE
*/
if (!SplitOnTwo(mKWSize, ' ', eCH_MI_DEST, eCH_MI_NICK))
mError = true;
if (!SplitOnTwo(' ', eCH_MI_NICK, eCH_MI_NICK, eCH_MI_INFO))
mError = true;
if (!SplitOnTwo('$', eCH_MI_INFO, eCH_MI_DESC, eCH_MI_SPEED))
mError = true;
if (!ChunkRedLeft(eCH_MI_SPEED, 2))
mError = true;
if (!SplitOnTwo('$', eCH_MI_SPEED, eCH_MI_SPEED, eCH_MI_MAIL))
mError = true;
if (!SplitOnTwo('$', eCH_MI_MAIL, eCH_MI_MAIL, eCH_MI_SIZE))
mError = true;
if (!ChunkRedRight(eCH_MI_SIZE, 1))
mError = true;
break;
case eDC_IN:
/*
$IN <nick>$<data>[$<data>]
eCH_IN_ALL, eCH_IN_NICK, eCH_IN_DATA
*/
if (!SplitOnTwo(mKWSize, '$', eCH_IN_NICK, eCH_IN_DATA))
mError = true;
break;
case eDC_EXTJSON:
/*
$ExtJSON <nick> {parameters with values}
eCH_EJ_ALL, eCH_EJ_NICK, eCH_EJ_PARS
*/
if (!SplitOnTwo(mKWSize, ' ', eCH_EJ_NICK, eCH_EJ_PARS))
mError = true;
break;
case eDCO_OPFORCEMOVE:
/*
$OpForceMove $Who:<victimNick>$Where:<newIp>$Msg:<reasonMsg>
eCH_FM_NICK eCH_FM_DEST eCH_FM_REASON
*/
if (!SplitOnTwo(mKWSize, '$', eCH_FM_NICK, eCH_FM_DEST))
mError = true;
if (!ChunkRedLeft(eCH_FM_DEST, 6)) // skip the "Where:" part
mError = true;
if (!SplitOnTwo('$', eCH_FM_DEST, eCH_FM_DEST, eCH_FM_REASON))
mError = true;
if (!ChunkRedLeft(eCH_FM_REASON, 4)) // skip the "Msg:" part
mError = true;
break;
case eDC_MSEARCH_PAS: // not implemented, but should be same as passive search
case eDC_SEARCH_PAS:
/*
$Search Hub:<nick> <limits><pattern>
eCH_PS_ALL, eCH_PS_NICK, eCH_PS_QUERY, eCH_PS_SEARCHLIMITS, eCH_PS_SEARCHPATTERN
*/
if (!SplitOnTwo(mKWSize, ' ', eCH_PS_NICK, eCH_PS_QUERY))
mError = true;
if (!SplitOnTwo('?', eCH_PS_QUERY, eCH_PS_SEARCHLIMITS, eCH_PS_SEARCHPATTERN, false))
mError = true;
if (!ChunkIncLeft(eCH_PS_SEARCHLIMITS, 1)) // get back last question mark
mError = true;
break;
case eDC_MSEARCH: // not implemented, but should be same as active search
case eDC_SEARCH:
/*
$Search <ip>:<port> <limits><pattern>
eCH_AS_ALL, eCH_AS_ADDR, eCH_AS_IP, eCH_AS_PORT, eCH_AS_QUERY, eCH_AS_SEARCHLIMITS, eCH_AS_SEARCHPATTERN
*/
if (!SplitOnTwo(mKWSize, ' ', eCH_AS_ADDR, eCH_AS_QUERY))
mError = true;
if (!SplitOnTwo(':', eCH_AS_ADDR, eCH_AS_IP, eCH_AS_PORT))
mError = true;
if (!SplitOnTwo(' ', eCH_AS_PORT, eCH_AS_PORT, eCH_AS_QUERY))
mError = true;
if (!SplitOnTwo('?', eCH_AS_QUERY, eCH_AS_SEARCHLIMITS, eCH_AS_SEARCHPATTERN, false))
mError = true;
if (!ChunkIncLeft(eCH_AS_SEARCHLIMITS, 1)) // get back last question mark
mError = true;
break;
case eDC_SR:
/*
$SR <senderNick> <filepath>^E<filesize> <freeslots>/<totalslots>^E<hubname> (<hubhost>[:<hubport>])^E<searchingNick>
$SR <senderNick> <filepath>^E<filesize> <freeslots>/<totalslots>^ETTH:<TTH-ROOT> (<hub_ip>[:<hubport>])^E<searchingNick>
$SR <senderNick> <filepath>^E<freeslots>/<totalslots>^ETTH:<TTH-ROOT> (<hub_ip>:[hubport]>)^E<searchingNick>
1) ----FROM----|-----------------------------------(PATH)--------------------------------------------------------------
2) |-------PATH-----------|----------------------(SLOTS)---------------------------------------------------
3) |-----------SLOTS---------|-------------(HUBINFO)--------------------------------
4) |-------------(HUBINFO)---------------|----TO----------
5)
eCH_SR_FROM, eCH_SR_PATH, eCH_SR_SIZE, eCH_SR_SLOTS, eCH_SR_SL_FR, eCH_SR_SL_TO, eCH_SR_HUBINFO, eCH_SR_TO
*/
if (!SplitOnTwo(mKWSize, ' ', eCH_SR_FROM, eCH_SR_PATH))
mError = true;
/*
if (!SplitOnTwo(' ', eCH_SR_PATH, eCH_SR_PATH, eCH_SR_SLOTS))
mError = true;
if (!SplitOnTwo(' ', eCH_SR_SLOTS, eCH_SR_SLOTS, eCH_SR_HUBINFO)
mError = true;
if (!SplitOnTwo(' ', eCH_SR_HUBINFO, eCH_SR_HUBINFO, eSR_TO)
mError = true;
*/
if (!SplitOnTwo(0x05, eCH_SR_PATH, eCH_SR_PATH, eCH_SR_SIZE))
mError = true;
if (!SplitOnTwo(0x05, eCH_SR_SIZE, eCH_SR_HUBINFO, eCH_SR_TO, false))
mError = true;
if (SplitOnTwo(0x05, eCH_SR_HUBINFO, eCH_SR_SIZE, eCH_SR_HUBINFO)) {
if (!SplitOnTwo(' ', eCH_SR_SIZE, eCH_SR_SIZE, eCH_SR_SLOTS))
mError = true;
if (!SplitOnTwo('/', eCH_SR_SLOTS, eCH_SR_SL_FR, eCH_SR_SL_TO))
mError = true;
} else {
SetChunk(eCH_SR_SIZE, 0, 0);
}
break;
case eDCO_BAN:
if (!SplitOnTwo(mKWSize, '$', eCH_NB_NICK, eCH_NB_REASON))
mError = true;
break;
case eDCO_TBAN:
if (!SplitOnTwo(mKWSize, '$', eCH_NB_NICK, eCH_NB_TIME))
mError = true;
if (!SplitOnTwo('$', eCH_NB_TIME, eCH_NB_TIME, eCH_NB_REASON))
mError = true;
break;
default:
break;
}
mModified = false; // reset modified flag
return mError;
}
