static QString cacheFileName(bool withPort=true)
{
return cacheFileName(MPDConnection::self()->getDetails(), withPort);
}
void NntpProcessor::SendSegment()
{
detail("[%i] Sending segment %s (%i=%lli:%i)", m_id, *m_filename, m_part, (long long)m_offset, m_size);
if (m_speed > 0)
{
m_start = Util::GetCurrentTicks();
}
BString<1024> fullFilename("%s/%s", m_dataDir, *m_filename);
BString<1024> cacheFileDir("%s/%s", m_cacheDir, *m_filename);
BString<1024> cacheFileName("%i=%lli-%i", m_part, (long long)m_offset, m_size);
BString<1024> cacheFullFilename("%s/%s", *cacheFileDir, *cacheFileName);
BString<1024> cacheKey("%s/%s", *m_filename, *cacheFileName);
const char* cachedData = nullptr;
int cachedSize;
if (m_cache)
{
m_cache->Find(cacheKey, cachedData, cachedSize);
}
DiskFile cacheFile;
bool readCache = !cachedData && m_cacheDir && cacheFile.Open(cacheFullFilename, DiskFile::omRead);
bool writeCache = !cachedData && m_cacheDir && !readCache;
StringBuilder cacheMem;
if (m_cache && !cachedData)
{
cacheMem.Reserve((int)(m_size * 1.1));
}
CString errmsg;
if (writeCache && !FileSystem::ForceDirectories(cacheFileDir, errmsg))
{
error("Could not create directory %s: %s", *cacheFileDir, *errmsg);
}
if (writeCache && !cacheFile.Open(cacheFullFilename, DiskFile::omWrite))
{
error("Could not create file %s: %s", *cacheFullFilename, *FileSystem::GetLastErrorMessage());
}
if (!cachedData && !readCache && !FileSystem::FileExists(fullFilename))
{
m_connection->WriteLine(CString::FormatStr("430 Article not found\r\n"));
return;
}
YEncoder encoder(fullFilename, m_part, m_offset, m_size,
[proc = this, writeCache, &cacheFile, &cacheMem](const char* buf, int size)
{
if (proc->m_cache)
{
cacheMem.Append(buf);
}
if (writeCache)
{
cacheFile.Write(buf, size);
}
proc->SendData(buf, size);
});
if (!cachedData && !readCache && !encoder.OpenFile(errmsg))
{
m_connection->WriteLine(CString::FormatStr("403 %s\r\n", *errmsg));
return;
}
m_connection->WriteLine(CString::FormatStr("%i, 0 %s\r\n", m_sendHeaders ? 222 : 220, m_messageid));
if (m_sendHeaders)
{
m_connection->WriteLine(CString::FormatStr("Message-ID: %s\r\n", m_messageid));
m_connection->WriteLine(CString::FormatStr("Subject: \"%s\"\r\n", FileSystem::BaseFileName(m_filename)));
m_connection->WriteLine("\r\n");
}
if (cachedData)
{
SendData(cachedData, cachedSize);
}
else if (readCache)
{
cacheFile.Seek(0, DiskFile::soEnd);
int size = (int)cacheFile.Position();
CharBuffer buf(size);
cacheFile.Seek(0);
if (cacheFile.Read((char*)buf, size) != size)
{
error("Could not read file %s: %s", *cacheFullFilename, *FileSystem::GetLastErrorMessage());
}
if (m_cache)
{
cacheMem.Append(buf, size);
}
SendData(buf, size);
}
else
{
encoder.WriteSegment();
}
if (!cachedData && cacheMem.Length() > 0)
{
m_cache->Append(cacheKey, cacheMem, cacheMem.Length());
}
m_connection->WriteLine(".\r\n");
}
