status_t
BKeymap::SetTo(BDataIO& stream)
{
if (stream.Read(&fKeys, sizeof(fKeys)) < 1)
return B_IO_ERROR;
// convert from big-endian
for (uint32 i = 0; i < sizeof(fKeys) / 4; i++) {
((uint32*)&fKeys)[i] = B_BENDIAN_TO_HOST_INT32(((uint32*)&fKeys)[i]);
}
if (fKeys.version != 3)
return B_BAD_DATA;
if (stream.Read(&fCharsSize, sizeof(uint32)) < 1)
return B_IO_ERROR;
fCharsSize = B_BENDIAN_TO_HOST_INT32(fCharsSize);
if (fCharsSize > 16 * 1024) {
Unset();
return B_BAD_DATA;
}
delete[] fChars;
fChars = new char[fCharsSize];
if (stream.Read(fChars, fCharsSize) != (ssize_t)fCharsSize) {
Unset();
return B_IO_ERROR;
}
return B_OK;
}
status_t
IMAPFolder::_WriteStream(BFile& file, BDataIO& stream, size_t& length) const
{
char buffer[65535];
while (length > 0) {
ssize_t bytesRead = stream.Read(buffer,
std::min(sizeof(buffer), length));
if (bytesRead < 0)
return bytesRead;
if (bytesRead <= 0)
break;
length -= bytesRead;
ssize_t bytesWritten = file.Write(buffer, bytesRead);
if (bytesWritten < 0)
return bytesWritten;
if (bytesWritten != bytesRead)
return B_IO_ERROR;
}
return B_OK;
}
status_t
BHttpRequest::_MakeRequest()
{
delete fSocket;
if (fSSL)
fSocket = new(std::nothrow) CheckedSecureSocket(this);
else
fSocket = new(std::nothrow) BSocket();
if (fSocket == NULL)
return B_NO_MEMORY;
_EmitDebug(B_URL_PROTOCOL_DEBUG_TEXT, "Connection to %s on port %d.",
fUrl.Authority().String(), fRemoteAddr.Port());
status_t connectError = fSocket->Connect(fRemoteAddr);
if (connectError != B_OK) {
_EmitDebug(B_URL_PROTOCOL_DEBUG_ERROR, "Socket connection error %s",
strerror(connectError));
return connectError;
}
//! ProtocolHook:ConnectionOpened
if (fListener != NULL)
fListener->ConnectionOpened(this);
_EmitDebug(B_URL_PROTOCOL_DEBUG_TEXT,
"Connection opened, sending request.");
_SendRequest();
_SendHeaders();
fSocket->Write("\r\n", 2);
_EmitDebug(B_URL_PROTOCOL_DEBUG_TEXT, "Request sent.");
_SendPostData();
fRequestStatus = kRequestInitialState;
// Receive loop
bool receiveEnd = false;
bool parseEnd = false;
bool readByChunks = false;
bool decompress = false;
status_t readError = B_OK;
ssize_t bytesRead = 0;
ssize_t bytesReceived = 0;
ssize_t bytesTotal = 0;
off_t bytesUnpacked = 0;
char* inputTempBuffer = new(std::nothrow) char[kHttpBufferSize];
ssize_t inputTempSize = kHttpBufferSize;
ssize_t chunkSize = -1;
DynamicBuffer decompressorStorage;
BDataIO* decompressingStream;
ObjectDeleter<BDataIO> decompressingStreamDeleter;
while (!fQuit && !(receiveEnd && parseEnd)) {
if (!receiveEnd) {
fSocket->WaitForReadable();
BStackOrHeapArray<char, 4096> chunk(kHttpBufferSize);
bytesRead = fSocket->Read(chunk, kHttpBufferSize);
if (bytesRead < 0) {
readError = bytesRead;
break;
} else if (bytesRead == 0)
receiveEnd = true;
fInputBuffer.AppendData(chunk, bytesRead);
} else
bytesRead = 0;
if (fRequestStatus < kRequestStatusReceived) {
_ParseStatus();
//! ProtocolHook:ResponseStarted
if (fRequestStatus >= kRequestStatusReceived && fListener != NULL)
fListener->ResponseStarted(this);
}
if (fRequestStatus < kRequestHeadersReceived) {
_ParseHeaders();
if (fRequestStatus >= kRequestHeadersReceived) {
_ResultHeaders() = fHeaders;
//! ProtocolHook:HeadersReceived
if (fListener != NULL)
fListener->HeadersReceived(this);
// Parse received cookies
if (fContext != NULL) {
for (int32 i = 0; i < fHeaders.CountHeaders(); i++) {
if (fHeaders.HeaderAt(i).NameIs("Set-Cookie")) {
fContext->GetCookieJar().AddCookie(
fHeaders.HeaderAt(i).Value(), fUrl);
}
}
}
if (BString(fHeaders["Transfer-Encoding"]) == "chunked")
readByChunks = true;
BString contentEncoding(fHeaders["Content-Encoding"]);
// We don't advertise "deflate" support (see above), but we
// still try to decompress it, if a server ever sends a deflate
// stream despite it not being in our Accept-Encoding list.
if (contentEncoding == "gzip"
|| contentEncoding == "deflate") {
decompress = true;
readError = BZlibCompressionAlgorithm()
.CreateDecompressingOutputStream(&decompressorStorage,
NULL, decompressingStream);
if (readError != B_OK)
break;
decompressingStreamDeleter.SetTo(decompressingStream);
}
int32 index = fHeaders.HasHeader("Content-Length");
if (index != B_ERROR)
bytesTotal = atoi(fHeaders.HeaderAt(index).Value());
else
bytesTotal = -1;
}
}
if (fRequestStatus >= kRequestHeadersReceived) {
// If Transfer-Encoding is chunked, we should read a complete
// chunk in buffer before handling it
if (readByChunks) {
if (chunkSize >= 0) {
if ((ssize_t)fInputBuffer.Size() >= chunkSize + 2) {
// 2 more bytes to handle the closing CR+LF
bytesRead = chunkSize;
if (inputTempSize < chunkSize + 2) {
delete[] inputTempBuffer;
inputTempSize = chunkSize + 2;
inputTempBuffer
= new(std::nothrow) char[inputTempSize];
}
if (inputTempBuffer == NULL) {
readError = B_NO_MEMORY;
break;
}
fInputBuffer.RemoveData(inputTempBuffer,
chunkSize + 2);
chunkSize = -1;
} else {
// Not enough data, try again later
bytesRead = -1;
}
} else {
BString chunkHeader;
if (_GetLine(chunkHeader) == B_ERROR) {
chunkSize = -1;
bytesRead = -1;
} else {
// Format of a chunk header:
// <chunk size in hex>[; optional data]
int32 semiColonIndex = chunkHeader.FindFirst(';', 0);
// Cut-off optional data if present
if (semiColonIndex != -1) {
chunkHeader.Remove(semiColonIndex,
chunkHeader.Length() - semiColonIndex);
}
chunkSize = strtol(chunkHeader.String(), NULL, 16);
PRINT(("BHP[%p] Chunk %s=%ld\n", this,
chunkHeader.String(), chunkSize));
if (chunkSize == 0)
fRequestStatus = kRequestContentReceived;
bytesRead = -1;
}
}
// A chunk of 0 bytes indicates the end of the chunked transfer
if (bytesRead == 0)
receiveEnd = true;
} else {
bytesRead = fInputBuffer.Size();
if (bytesRead > 0) {
if (inputTempSize < bytesRead) {
inputTempSize = bytesRead;
delete[] inputTempBuffer;
inputTempBuffer = new(std::nothrow) char[bytesRead];
}
if (inputTempBuffer == NULL) {
readError = B_NO_MEMORY;
break;
}
fInputBuffer.RemoveData(inputTempBuffer, bytesRead);
}
}
if (bytesRead >= 0) {
bytesReceived += bytesRead;
if (fListener != NULL) {
if (decompress) {
readError = decompressingStream->WriteExactly(
inputTempBuffer, bytesRead);
if (readError != B_OK)
break;
ssize_t size = decompressorStorage.Size();
BStackOrHeapArray<char, 4096> buffer(size);
size = decompressorStorage.Read(buffer, size);
if (size > 0) {
fListener->DataReceived(this, buffer, bytesUnpacked,
size);
bytesUnpacked += size;
}
} else if (bytesRead > 0) {
fListener->DataReceived(this, inputTempBuffer,
bytesReceived - bytesRead, bytesRead);
}
fListener->DownloadProgress(this, bytesReceived,
std::max((ssize_t)0, bytesTotal));
}
if (bytesTotal >= 0 && bytesReceived >= bytesTotal)
receiveEnd = true;
if (decompress && receiveEnd) {
readError = decompressingStream->Flush();
if (readError == B_BUFFER_OVERFLOW)
readError = B_OK;
if (readError != B_OK)
break;
ssize_t size = decompressorStorage.Size();
BStackOrHeapArray<char, 4096> buffer(size);
size = decompressorStorage.Read(buffer, size);
if (fListener != NULL && size > 0) {
fListener->DataReceived(this, buffer,
bytesUnpacked, size);
bytesUnpacked += size;
}
}
}
}
parseEnd = (fInputBuffer.Size() == 0);
}
fSocket->Disconnect();
delete[] inputTempBuffer;
if (readError != B_OK)
return readError;
return fQuit ? B_INTERRUPTED : B_OK;
}
