NPT_Result
NPT_StreamToStreamCopy(NPT_InputStream& from,
NPT_OutputStream& to,
NPT_Position offset /* = 0 */,
NPT_Size size /* = 0, 0 means the entire stream */)
{
// seek into the input if required
if (offset) {
NPT_CHECK(from.Seek(offset));
}
// allocate a buffer for the transfer
NPT_Size bytes_transfered = 0;
NPT_Byte* buffer = new NPT_Byte[NPT_STREAM_COPY_BUFFER_SIZE];
NPT_Result result = NPT_SUCCESS;
if (buffer == NULL) return NPT_ERROR_OUT_OF_MEMORY;
// copy until an error occurs or the end of stream is reached
for (;;) {
// read some data
NPT_Size bytes_to_read = NPT_STREAM_COPY_BUFFER_SIZE;
NPT_Size bytes_read = 0;
if (size) {
// a max size was specified
if (bytes_to_read > size-bytes_transfered) {
bytes_to_read = size-bytes_transfered;
}
}
result = from.Read(buffer, bytes_to_read, &bytes_read);
if (NPT_FAILED(result)) {
if (result == NPT_ERROR_EOS) result = NPT_SUCCESS;
break;
}
if (bytes_read == 0) continue;
// write the data
result = to.WriteFully(buffer, bytes_read);
if (NPT_FAILED(result)) break;
// update the counts
if (size) {
bytes_transfered += bytes_read;
if (bytes_transfered >= size) break;
}
}
// free the buffer and return
delete[] buffer;
return result;
}
/*----------------------------------------------------------------------
| PLT_HttpServerSocketTask::SendResponseBody
+---------------------------------------------------------------------*/
NPT_Result
PLT_HttpServerSocketTask::SendResponseBody(NPT_HttpResponse* response,
NPT_OutputStream& output_stream)
{
NPT_HttpEntity* entity = response->GetEntity();
if (!entity) return NPT_SUCCESS;
NPT_InputStreamReference body_stream;
entity->GetInputStream(body_stream);
if (body_stream.IsNull()) return NPT_SUCCESS;
// check for chunked transfer encoding
NPT_OutputStream* dest = &output_stream;
if (entity->GetTransferEncoding() == NPT_HTTP_TRANSFER_ENCODING_CHUNKED) {
dest = new NPT_HttpChunkedOutputStream(output_stream);
}
// send body
NPT_LOG_FINE_1("sending body stream, %lld bytes", entity->GetContentLength());
NPT_LargeSize bytes_written = 0;
NPT_Result result = NPT_StreamToStreamCopy(*body_stream, *dest, 0, entity->GetContentLength(), &bytes_written); /* passing 0 if content length is unknown will read until nothing is left */
if (NPT_FAILED(result)) {
NPT_LOG_FINE_3("body stream only partially sent, %lld bytes (%d:%s)",
bytes_written,
result,
NPT_ResultText(result));
}
// flush to write out any buffered data left in chunked output if used
dest->Flush();
// cleanup (this will send zero size chunk followed by CRLF)
if (dest != &output_stream) delete dest;
return result;
}
NPT_Result SendResponseBody(const NPT_HttpRequestContext& /*context*/,
NPT_HttpResponse& /*response*/,
NPT_OutputStream& output) {
output.WriteString("<html><body>\r\n");
for (unsigned int i=0; i<30; i++) {
output.WriteString("Line ");
output.WriteString(NPT_String::FromInteger(i).GetChars());
output.WriteString("\r\n");
output.Flush();
NPT_System::Sleep(NPT_TimeInterval(0.2f));
}
output.WriteString("</body></html>\r\n");
return NPT_SUCCESS;
}
/*----------------------------------------------------------------------
| PLT_HttpServerSocketTask::SendResponseHeaders
+---------------------------------------------------------------------*/
NPT_Result
PLT_HttpServerSocketTask::SendResponseHeaders(NPT_HttpResponse* response,
NPT_OutputStream& output_stream,
bool& keep_alive)
{
// add any headers that may be missing
NPT_HttpHeaders& headers = response->GetHeaders();
// get the request entity to set additional headers
NPT_InputStreamReference body_stream;
NPT_HttpEntity* entity = response->GetEntity();
if (entity && NPT_SUCCEEDED(entity->GetInputStream(body_stream))) {
// set the content length if known
if (entity->ContentLengthIsKnown()) {
headers.SetHeader(NPT_HTTP_HEADER_CONTENT_LENGTH,
NPT_String::FromIntegerU(entity->GetContentLength()));
}
// content type
NPT_String content_type = entity->GetContentType();
if (!content_type.IsEmpty()) {
headers.SetHeader(NPT_HTTP_HEADER_CONTENT_TYPE, content_type);
}
// content encoding
NPT_String content_encoding = entity->GetContentEncoding();
if (!content_encoding.IsEmpty()) {
headers.SetHeader(NPT_HTTP_HEADER_CONTENT_ENCODING, content_encoding);
}
// transfer encoding
const NPT_String& transfer_encoding = entity->GetTransferEncoding();
if (!transfer_encoding.IsEmpty()) {
headers.SetHeader(NPT_HTTP_HEADER_TRANSFER_ENCODING, transfer_encoding);
}
} else if (!headers.GetHeader(NPT_HTTP_HEADER_CONTENT_LENGTH)) {
// force content length to 0 if there is no message body
// (necessary for 1.1 or 1.0 with keep-alive connections)
headers.SetHeader(NPT_HTTP_HEADER_CONTENT_LENGTH, "0");
}
const NPT_String* content_length = headers.GetHeaderValue(NPT_HTTP_HEADER_CONTENT_LENGTH);
const NPT_String* transfer_encoding = headers.GetHeaderValue(NPT_HTTP_HEADER_TRANSFER_ENCODING);
const NPT_String* connection_header = headers.GetHeaderValue(NPT_HTTP_HEADER_CONNECTION);
if (keep_alive) {
if (connection_header && connection_header->Compare("close") == 0) {
keep_alive = false;
} else {
// the request says client supports keep-alive
// but override if response has content-length header or
// transfer chunked encoding
keep_alive = content_length ||
(transfer_encoding && transfer_encoding->Compare(NPT_HTTP_TRANSFER_ENCODING_CHUNKED) == 0);
}
}
// only write keep-alive header for 1.1 if it's close
NPT_String protocol = response->GetProtocol();
if (protocol.Compare(NPT_HTTP_PROTOCOL_1_0, true) == 0 || !keep_alive) {
headers.SetHeader(NPT_HTTP_HEADER_CONNECTION, keep_alive?"keep-alive":"close", true);
}
headers.SetHeader(NPT_HTTP_HEADER_SERVER, PLT_HTTP_DEFAULT_SERVER, false); // set but don't replace
PLT_LOG_HTTP_RESPONSE(NPT_LOG_LEVEL_FINE, "PLT_HttpServerSocketTask::Write", response);
// create a memory stream to buffer the headers
NPT_MemoryStream header_stream;
response->Emit(header_stream);
// send the headers
NPT_CHECK_WARNING(output_stream.WriteFully(header_stream.GetData(), header_stream.GetDataSize()));
return NPT_SUCCESS;
}
/*----------------------------------------------------------------------
| NPT_Log::FormatRecordToStream
+---------------------------------------------------------------------*/
void
NPT_Log::FormatRecordToStream(const NPT_LogRecord& record,
NPT_OutputStream& stream,
bool use_colors,
NPT_Flags format_filter)
{
const char* level_name = GetLogLevelName(record.m_Level);
NPT_String level_string;
/* format and emit the record */
if (level_name[0] == '\0') {
level_string = NPT_String::FromInteger(record.m_Level);
level_name = level_string;
}
if ((format_filter & NPT_LOG_FORMAT_FILTER_NO_SOURCE) == 0) {
unsigned int start = 0;
/* remove source file path if requested */
if (format_filter & NPT_LOG_FORMAT_FILTER_NO_SOURCEPATH) {
for (start = NPT_StringLength(record.m_SourceFile);
start;
--start) {
if (record.m_SourceFile[start-1] == '\\' ||
record.m_SourceFile[start-1] == '/') {
break;
}
}
}
stream.WriteString(record.m_SourceFile + start);
stream.Write("(", 1, NULL);
stream.WriteString(NPT_String::FromIntegerU(record.m_SourceLine));
stream.Write("): ", 3, NULL);
}
if ((format_filter & NPT_LOG_FORMAT_FILTER_NO_LOGGER_NAME) == 0) {
stream.Write("[", 1, NULL);
stream.WriteString(record.m_LoggerName);
stream.Write("] ", 2, NULL);
}
if ((format_filter & NPT_LOG_FORMAT_FILTER_NO_TIMESTAMP) == 0) {
NPT_String ts = NPT_DateTime(record.m_TimeStamp, true).ToString(NPT_DateTime::FORMAT_W3C,
NPT_DateTime::FLAG_EMIT_FRACTION |
NPT_DateTime::FLAG_EXTENDED_PRECISION);
stream.WriteString(ts.GetChars());
stream.Write(" ", 1);
}
if ((format_filter & NPT_LOG_FORMAT_FILTER_NO_FUNCTION_NAME) == 0) {
stream.WriteFully("[",1);
if (record.m_SourceFunction) {
stream.WriteString(record.m_SourceFunction);
}
stream.WriteFully("] ",2);
}
if ((format_filter & NPT_LOG_FORMAT_FILTER_NO_THREAD_ID) == 0) {
stream.Write("(", 1, NULL);
stream.WriteString(NPT_String::FromIntegerU(record.m_ThreadId));
stream.Write(") ", 2, NULL);
}
const char* ansi_color = NULL;
if (use_colors) {
ansi_color = GetLogLevelAnsiColor(record.m_Level);
if (ansi_color) {
stream.Write("\033[", 2, NULL);
stream.WriteString(ansi_color);
stream.Write(";1m", 3, NULL);
}
}
stream.WriteString(level_name);
if (use_colors && ansi_color) {
stream.Write("\033[0m", 4, NULL);
}
stream.Write(": ", 2, NULL);
stream.WriteString(record.m_Message);
stream.Write("\r\n", 2, NULL);
}