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|
/*****************************************************************
|
| Neptune - HTTP Protocol
|
| Copyright (c) 2002-2008, Axiomatic Systems, LLC.
| All rights reserved.
|
| Redistribution and use in source and binary forms, with or without
| modification, are permitted provided that the following conditions are met:
| * Redistributions of source code must retain the above copyright
| notice, this list of conditions and the following disclaimer.
| * Redistributions in binary form must reproduce the above copyright
| notice, this list of conditions and the following disclaimer in the
| documentation and/or other materials provided with the distribution.
| * Neither the name of Axiomatic Systems nor the
| names of its contributors may be used to endorse or promote products
| derived from this software without specific prior written permission.
|
| THIS SOFTWARE IS PROVIDED BY AXIOMATIC SYSTEMS ''AS IS'' AND ANY
| EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
| WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
| DISCLAIMED. IN NO EVENT SHALL AXIOMATIC SYSTEMS BE LIABLE FOR ANY
| DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
| (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
| LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
| ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
| (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
| SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
****************************************************************/
/*----------------------------------------------------------------------
| includes
+---------------------------------------------------------------------*/
#include "NptHttp.h"
#include "NptSockets.h"
#include "NptBufferedStreams.h"
#include "NptDebug.h"
#include "NptVersion.h"
#include "NptUtils.h"
#include "NptFile.h"
#include "NptSystem.h"
#include "NptLogging.h"
#include "NptTls.h"
#include "NptStreams.h"
/*----------------------------------------------------------------------
| logging
+---------------------------------------------------------------------*/
NPT_SET_LOCAL_LOGGER("neptune.http")
/*----------------------------------------------------------------------
| constants
+---------------------------------------------------------------------*/
const char* const NPT_HTTP_DEFAULT_403_HTML = "<html><head><title>403 Forbidden</title></head><body><h1>Forbidden</h1><p>Access to this URL is forbidden.</p></html>";
const char* const NPT_HTTP_DEFAULT_404_HTML = "<html><head><title>404 Not Found</title></head><body><h1>Not Found</h1><p>The requested URL was not found on this server.</p></html>";
const char* const NPT_HTTP_DEFAULT_500_HTML = "<html><head><title>500 Internal Error</title></head><body><h1>Internal Error</h1><p>The server encountered an unexpected condition which prevented it from fulfilling the request.</p></html>";
/*----------------------------------------------------------------------
| NPT_HttpUrl::NPT_HttpUrl
+---------------------------------------------------------------------*/
NPT_HttpUrl::NPT_HttpUrl(const char* url, bool ignore_scheme) :
NPT_Url(url)
{
if (!ignore_scheme) {
if (GetSchemeId() != NPT_Uri::SCHEME_ID_HTTP &&
GetSchemeId() != NPT_Uri::SCHEME_ID_HTTPS) {
Reset();
}
}
}
/*----------------------------------------------------------------------
| NPT_HttpUrl::NPT_HttpUrl
+---------------------------------------------------------------------*/
NPT_HttpUrl::NPT_HttpUrl(const char* host,
NPT_UInt16 port,
const char* path,
const char* query,
const char* fragment) :
NPT_Url("http", host, port, path, query, fragment)
{
}
/*----------------------------------------------------------------------
| NPT_HttpUrl::ToString
+---------------------------------------------------------------------*/
NPT_String
NPT_HttpUrl::ToString(bool with_fragment) const
{
NPT_UInt16 default_port;
switch (m_SchemeId) {
case SCHEME_ID_HTTP: default_port = NPT_HTTP_DEFAULT_PORT; break;
case SCHEME_ID_HTTPS: default_port = NPT_HTTPS_DEFAULT_PORT; break;
default: default_port = 0;
}
return NPT_Url::ToStringWithDefaultPort(default_port, with_fragment);
}
/*----------------------------------------------------------------------
| NPT_HttpHeader::NPT_HttpHeader
+---------------------------------------------------------------------*/
NPT_HttpHeader::NPT_HttpHeader(const char* name, const char* value):
m_Name(name),
m_Value(value)
{
}
/*----------------------------------------------------------------------
| NPT_HttpHeader::~NPT_HttpHeader
+---------------------------------------------------------------------*/
NPT_HttpHeader::~NPT_HttpHeader()
{
}
/*----------------------------------------------------------------------
| NPT_HttpHeader::Emit
+---------------------------------------------------------------------*/
NPT_Result
NPT_HttpHeader::Emit(NPT_OutputStream& stream) const
{
stream.WriteString(m_Name);
stream.WriteFully(": ", 2);
stream.WriteString(m_Value);
stream.WriteFully(NPT_HTTP_LINE_TERMINATOR, 2);
NPT_LOG_FINEST_2("header %s: %s", m_Name.GetChars(), m_Value.GetChars());
return NPT_SUCCESS;
}
/*----------------------------------------------------------------------
| NPT_HttpHeader::SetName
+---------------------------------------------------------------------*/
NPT_Result
NPT_HttpHeader::SetName(const char* name)
{
m_Name = name;
return NPT_SUCCESS;
}
/*----------------------------------------------------------------------
| NPT_HttpHeader::~NPT_HttpHeader
+---------------------------------------------------------------------*/
NPT_Result
NPT_HttpHeader::SetValue(const char* value)
{
m_Value = value;
return NPT_SUCCESS;
}
/*----------------------------------------------------------------------
| NPT_HttpHeaders::NPT_HttpHeaders
+---------------------------------------------------------------------*/
NPT_HttpHeaders::NPT_HttpHeaders()
{
}
/*----------------------------------------------------------------------
| NPT_HttpHeaders::~NPT_HttpHeaders
+---------------------------------------------------------------------*/
NPT_HttpHeaders::~NPT_HttpHeaders()
{
m_Headers.Apply(NPT_ObjectDeleter<NPT_HttpHeader>());
}
/*----------------------------------------------------------------------
| NPT_HttpHeaders::Parse
+---------------------------------------------------------------------*/
NPT_Result
NPT_HttpHeaders::Parse(NPT_BufferedInputStream& stream)
{
NPT_String header_name;
NPT_String header_value;
bool header_pending = false;
NPT_String line;
while (NPT_SUCCEEDED(stream.ReadLine(line, NPT_HTTP_PROTOCOL_MAX_LINE_LENGTH))) {
if (line.GetLength() == 0) {
// empty line, end of headers
break;
}
if (header_pending && (line[0] == ' ' || line[0] == '\t')) {
// continuation (folded header)
header_value.Append(line.GetChars()+1, line.GetLength()-1);
} else {
// add the pending header to the list
if (header_pending) {
header_value.Trim();
AddHeader(header_name, header_value);
header_pending = false;
NPT_LOG_FINEST_2("header - %s: %s",
header_name.GetChars(),
header_value.GetChars());
}
// find the colon separating the name and the value
int colon_index = line.Find(':');
if (colon_index < 1) {
// invalid syntax, ignore
continue;
}
header_name = line.Left(colon_index);
// the field value starts at the first non-whitespace
const char* value = line.GetChars()+colon_index+1;
while (*value == ' ' || *value == '\t') {
value++;
}
header_value = value;
// the header is pending
header_pending = true;
}
}
// if we have a header pending, add it now
if (header_pending) {
header_value.Trim();
AddHeader(header_name, header_value);
NPT_LOG_FINEST_2("header %s: %s",
header_name.GetChars(),
header_value.GetChars());
}
return NPT_SUCCESS;
}
/*----------------------------------------------------------------------
| NPT_HttpHeaders::Emit
+---------------------------------------------------------------------*/
NPT_Result
NPT_HttpHeaders::Emit(NPT_OutputStream& stream) const
{
// for each header in the list
NPT_List<NPT_HttpHeader*>::Iterator header = m_Headers.GetFirstItem();
while (header) {
// emit the header
NPT_CHECK_WARNING((*header)->Emit(stream));
++header;
}
return NPT_SUCCESS;
}
/*----------------------------------------------------------------------
| NPT_HttpHeaders::GetHeader
+---------------------------------------------------------------------*/
NPT_HttpHeader*
NPT_HttpHeaders::GetHeader(const char* name) const
{
// check args
if (name == NULL) return NULL;
// find a matching header
NPT_List<NPT_HttpHeader*>::Iterator header = m_Headers.GetFirstItem();
while (header) {
if ((*header)->GetName().Compare(name, true) == 0) {
return *header;
}
++header;
}
// not found
return NULL;
}
/*----------------------------------------------------------------------
| NPT_HttpHeaders::AddHeader
+---------------------------------------------------------------------*/
NPT_Result
NPT_HttpHeaders::AddHeader(const char* name, const char* value)
{
return m_Headers.Add(new NPT_HttpHeader(name, value));
}
/*----------------------------------------------------------------------
| NPT_HttpHeaders::RemoveHeader
+---------------------------------------------------------------------*/
NPT_Result
NPT_HttpHeaders::RemoveHeader(const char* name)
{
bool found = false;
NPT_HttpHeader* header = NULL;
while ((header = GetHeader(name))) {
m_Headers.Remove(header);
delete header;
found = true;
}
return found?NPT_SUCCESS:NPT_ERROR_NO_SUCH_ITEM;
}
/*----------------------------------------------------------------------
| NPT_HttpHeaders::SetHeader
+---------------------------------------------------------------------*/
NPT_Result
NPT_HttpHeaders::SetHeader(const char* name, const char* value, bool replace)
{
NPT_HttpHeader* header = GetHeader(name);
if (header == NULL) {
return AddHeader(name, value);
} else if (replace) {
return header->SetValue(value);
} else {
return NPT_SUCCESS;
}
}
/*----------------------------------------------------------------------
| NPT_HttpHeaders::GetHeaderValue
+---------------------------------------------------------------------*/
const NPT_String*
NPT_HttpHeaders::GetHeaderValue(const char* name) const
{
NPT_HttpHeader* header = GetHeader(name);
if (header == NULL) {
return NULL;
} else {
return &header->GetValue();
}
}
/*----------------------------------------------------------------------
| NPT_HttpEntityBodyInputStream
+---------------------------------------------------------------------*/
class NPT_HttpEntityBodyInputStream : public NPT_InputStream
{
public:
// constructor and desctructor
NPT_HttpEntityBodyInputStream(NPT_BufferedInputStreamReference& source,
NPT_LargeSize size,
bool size_is_known,
bool chunked,
NPT_HttpClient::Connection* connection,
bool should_persist);
~NPT_HttpEntityBodyInputStream() override;
// methods
bool SizeIsKnown() { return m_SizeIsKnown; }
// NPT_InputStream methods
NPT_Result Read(void* buffer,
NPT_Size bytes_to_read,
NPT_Size* bytes_read = NULL) override;
NPT_Result Seek(NPT_Position /*offset*/) override {
return NPT_ERROR_NOT_SUPPORTED;
}
NPT_Result Tell(NPT_Position& offset) override {
offset = m_Position;
return NPT_SUCCESS;
}
NPT_Result GetSize(NPT_LargeSize& size) override {
size = m_Size;
return NPT_SUCCESS;
}
NPT_Result GetAvailable(NPT_LargeSize& available) override;
private:
// methods
virtual void OnFullyRead();
// members
NPT_LargeSize m_Size;
bool m_SizeIsKnown;
bool m_Chunked;
NPT_HttpClient::Connection* m_Connection;
bool m_ShouldPersist;
NPT_Position m_Position;
NPT_InputStreamReference m_Source;
};
/*----------------------------------------------------------------------
| NPT_HttpEntityBodyInputStream::NPT_HttpEntityBodyInputStream
+---------------------------------------------------------------------*/
NPT_HttpEntityBodyInputStream::NPT_HttpEntityBodyInputStream(
NPT_BufferedInputStreamReference& source,
NPT_LargeSize size,
bool size_is_known,
bool chunked,
NPT_HttpClient::Connection* connection,
bool should_persist) :
m_Size(size),
m_SizeIsKnown(size_is_known),
m_Chunked(chunked),
m_Connection(connection),
m_ShouldPersist(should_persist),
m_Position(0)
{
if (size_is_known && size == 0) {
OnFullyRead();
} else {
if (chunked) {
m_Source = NPT_InputStreamReference(new NPT_HttpChunkedInputStream(source));
} else {
m_Source = source;
}
}
}
/*----------------------------------------------------------------------
| NPT_HttpEntityBodyInputStream::~NPT_HttpEntityBodyInputStream
+---------------------------------------------------------------------*/
NPT_HttpEntityBodyInputStream::~NPT_HttpEntityBodyInputStream()
{
delete m_Connection;
}
/*----------------------------------------------------------------------
| NPT_HttpEntityBodyInputStream::OnFullyRead
+---------------------------------------------------------------------*/
void
NPT_HttpEntityBodyInputStream::OnFullyRead()
{
m_Source = NULL;
if (m_Connection && m_ShouldPersist) {
m_Connection->Recycle();
m_Connection = NULL;
}
}
/*----------------------------------------------------------------------
| NPT_HttpEntityBodyInputStream::Read
+---------------------------------------------------------------------*/
NPT_Result
NPT_HttpEntityBodyInputStream::Read(void* buffer,
NPT_Size bytes_to_read,
NPT_Size* bytes_read)
{
if (bytes_read) *bytes_read = 0;
// return now if we've already reached the end
if (m_Source.IsNull()) return NPT_ERROR_EOS;
// clamp to the max possible read size
if (!m_Chunked && m_SizeIsKnown) {
NPT_LargeSize max_can_read = m_Size-m_Position;
if (max_can_read == 0) return NPT_ERROR_EOS;
if (bytes_to_read > max_can_read) bytes_to_read = (NPT_Size)max_can_read;
}
// read from the source
NPT_Size source_bytes_read = 0;
NPT_Result result = m_Source->Read(buffer, bytes_to_read, &source_bytes_read);
if (NPT_SUCCEEDED(result)) {
m_Position += source_bytes_read;
if (bytes_read) *bytes_read = source_bytes_read;
}
// check if we've reached the end
if (result == NPT_ERROR_EOS || (m_SizeIsKnown && (m_Position == m_Size))) {
OnFullyRead();
}
return result;
}
/*----------------------------------------------------------------------
| NPT_HttpEntityBodyInputStream::GetAvaialble
+---------------------------------------------------------------------*/
NPT_Result
NPT_HttpEntityBodyInputStream::GetAvailable(NPT_LargeSize& available)
{
if (m_Source.IsNull()) {
available = 0;
return NPT_SUCCESS;
}
NPT_Result result = m_Source->GetAvailable(available);
if (NPT_FAILED(result)) {
available = 0;
return result;
}
if (available > m_Size-m_Position) {
available = m_Size-m_Position;
}
return NPT_SUCCESS;
}
/*----------------------------------------------------------------------
| NPT_HttpEntity::NPT_HttpEntity
+---------------------------------------------------------------------*/
NPT_HttpEntity::NPT_HttpEntity() :
m_ContentLength(0),
m_ContentLengthIsKnown(false)
{
}
/*----------------------------------------------------------------------
| NPT_HttpEntity::NPT_HttpEntity
+---------------------------------------------------------------------*/
NPT_HttpEntity::NPT_HttpEntity(const NPT_HttpHeaders& headers) :
m_ContentLength(0),
m_ContentLengthIsKnown(false)
{
SetHeaders(headers);
}
/*----------------------------------------------------------------------
| NPT_HttpEntity::SetHeaders
+---------------------------------------------------------------------*/
NPT_Result
NPT_HttpEntity::SetHeaders(const NPT_HttpHeaders& headers)
{
NPT_HttpHeader* header;
// Content-Length
header = headers.GetHeader(NPT_HTTP_HEADER_CONTENT_LENGTH);
if (header != NULL) {
m_ContentLengthIsKnown = true;
NPT_LargeSize length;
if (NPT_SUCCEEDED(header->GetValue().ToInteger64(length))) {
m_ContentLength = length;
} else {
m_ContentLength = 0;
}
}
// Content-Type
header = headers.GetHeader(NPT_HTTP_HEADER_CONTENT_TYPE);
if (header != NULL) {
m_ContentType = header->GetValue();
}
// Content-Encoding
header = headers.GetHeader(NPT_HTTP_HEADER_CONTENT_ENCODING);
if (header != NULL) {
m_ContentEncoding = header->GetValue();
}
// Transfer-Encoding
header = headers.GetHeader(NPT_HTTP_HEADER_TRANSFER_ENCODING);
if (header != NULL) {
m_TransferEncoding = header->GetValue();
}
return NPT_SUCCESS;
}
/*----------------------------------------------------------------------
| NPT_HttpEntity::~NPT_HttpEntity
+---------------------------------------------------------------------*/
NPT_HttpEntity::~NPT_HttpEntity()
{
}
/*----------------------------------------------------------------------
| NPT_HttpEntity::GetInputStream
+---------------------------------------------------------------------*/
NPT_Result
NPT_HttpEntity::GetInputStream(NPT_InputStreamReference& stream)
{
// reset output params first
stream = NULL;
if (m_InputStream.IsNull()) return NPT_FAILURE;
stream = m_InputStream;
return NPT_SUCCESS;
}
/*----------------------------------------------------------------------
| NPT_HttpEntity::SetInputStream
+---------------------------------------------------------------------*/
NPT_Result
NPT_HttpEntity::SetInputStream(const NPT_InputStreamReference& stream,
bool update_content_length /* = false */)
{
m_InputStream = stream;
// get the content length from the stream
if (update_content_length && !stream.IsNull()) {
NPT_LargeSize length;
if (NPT_SUCCEEDED(stream->GetSize(length))) {
return SetContentLength(length);
}
}
return NPT_SUCCESS;
}
/*----------------------------------------------------------------------
| NPT_HttpEntity::SetInputStream
+---------------------------------------------------------------------*/
NPT_Result
NPT_HttpEntity::SetInputStream(const void* data, NPT_Size data_size)
{
NPT_MemoryStream* memory_stream = new NPT_MemoryStream(data, data_size);
NPT_InputStreamReference body(memory_stream);
return SetInputStream(body, true);
}
/*----------------------------------------------------------------------
| NPT_HttpEntity::SetInputStream
+---------------------------------------------------------------------*/
NPT_Result
NPT_HttpEntity::SetInputStream(const char* string)
{
if (string == NULL) return NPT_ERROR_INVALID_PARAMETERS;
NPT_MemoryStream* memory_stream = new NPT_MemoryStream((const void*)string,
NPT_StringLength(string));
NPT_InputStreamReference body(memory_stream);
return SetInputStream(body, true);
}
/*----------------------------------------------------------------------
| NPT_HttpEntity::SetInputStream
+---------------------------------------------------------------------*/
NPT_Result
NPT_HttpEntity::SetInputStream(const NPT_String& string)
{
NPT_MemoryStream* memory_stream = new NPT_MemoryStream((const void*)string.GetChars(),
string.GetLength());
NPT_InputStreamReference body(memory_stream);
return SetInputStream(body, true);
}
/*----------------------------------------------------------------------
| NPT_HttpEntity::Load
+---------------------------------------------------------------------*/
NPT_Result
NPT_HttpEntity::Load(NPT_DataBuffer& buffer)
{
// check that we have an input stream
if (m_InputStream.IsNull()) return NPT_ERROR_INVALID_STATE;
// load the stream into the buffer
if (m_ContentLength != (NPT_Size)m_ContentLength) return NPT_ERROR_OUT_OF_RANGE;
return m_InputStream->Load(buffer, (NPT_Size)m_ContentLength);
}
/*----------------------------------------------------------------------
| NPT_HttpEntity::SetContentLength
+---------------------------------------------------------------------*/
NPT_Result
NPT_HttpEntity::SetContentLength(NPT_LargeSize length)
{
m_ContentLength = length;
m_ContentLengthIsKnown = true;
return NPT_SUCCESS;
}
/*----------------------------------------------------------------------
| NPT_HttpEntity::SetContentType
+---------------------------------------------------------------------*/
NPT_Result
NPT_HttpEntity::SetContentType(const char* type)
{
m_ContentType = type;
return NPT_SUCCESS;
}
/*----------------------------------------------------------------------
| NPT_HttpEntity::SetContentEncoding
+---------------------------------------------------------------------*/
NPT_Result
NPT_HttpEntity::SetContentEncoding(const char* encoding)
{
m_ContentEncoding = encoding;
return NPT_SUCCESS;
}
/*----------------------------------------------------------------------
| NPT_HttpEntity::SetTransferEncoding
+---------------------------------------------------------------------*/
NPT_Result
NPT_HttpEntity::SetTransferEncoding(const char* encoding)
{
m_TransferEncoding = encoding;
return NPT_SUCCESS;
}
/*----------------------------------------------------------------------
| NPT_HttpMessage::NPT_HttpMessage
+---------------------------------------------------------------------*/
NPT_HttpMessage::NPT_HttpMessage(const char* protocol) :
m_Protocol(protocol),
m_Entity(NULL)
{
}
/*----------------------------------------------------------------------
| NPT_HttpMessage::NPT_HttpMessage
+---------------------------------------------------------------------*/
NPT_HttpMessage::~NPT_HttpMessage()
{
delete m_Entity;
}
/*----------------------------------------------------------------------
| NPT_HttpMessage::SetEntity
+---------------------------------------------------------------------*/
NPT_Result
NPT_HttpMessage::SetEntity(NPT_HttpEntity* entity)
{
if (entity != m_Entity) {
delete m_Entity;
m_Entity = entity;
}
return NPT_SUCCESS;
}
/*----------------------------------------------------------------------
| NPT_HttpMessage::ParseHeaders
+---------------------------------------------------------------------*/
NPT_Result
NPT_HttpMessage::ParseHeaders(NPT_BufferedInputStream& stream)
{
return m_Headers.Parse(stream);
}
/*----------------------------------------------------------------------
| NPT_HttpRequest::NPT_HttpRequest
+---------------------------------------------------------------------*/
NPT_HttpRequest::NPT_HttpRequest(const NPT_HttpUrl& url,
const char* method,
const char* protocol) :
NPT_HttpMessage(protocol),
m_Url(url),
m_Method(method)
{
}
/*----------------------------------------------------------------------
| NPT_HttpRequest::NPT_HttpRequest
+---------------------------------------------------------------------*/
NPT_HttpRequest::NPT_HttpRequest(const char* url,
const char* method,
const char* protocol) :
NPT_HttpMessage(protocol),
m_Url(url),
m_Method(method)
{
}
/*----------------------------------------------------------------------
| NPT_HttpRequest::SetUrl
+---------------------------------------------------------------------*/
NPT_Result
NPT_HttpRequest::SetUrl(const char* url)
{
m_Url = url;
return NPT_SUCCESS;
}
/*----------------------------------------------------------------------
| NPT_HttpRequest::SetUrl
+---------------------------------------------------------------------*/
NPT_Result
NPT_HttpRequest::SetUrl(const NPT_HttpUrl& url)
{
m_Url = url;
return NPT_SUCCESS;
}
/*----------------------------------------------------------------------
| NPT_HttpRequest::Parse
+---------------------------------------------------------------------*/
NPT_Result
NPT_HttpRequest::Parse(NPT_BufferedInputStream& stream,
const NPT_SocketAddress* endpoint,
NPT_HttpRequest*& request)
{
// default return value
request = NULL;
skip_first_empty_line:
// read the request line
NPT_String line;
NPT_CHECK_FINER(stream.ReadLine(line, NPT_HTTP_PROTOCOL_MAX_LINE_LENGTH));
NPT_LOG_FINEST_1("http request: %s", line.GetChars());
// cleanup lines that may contain '\0' as first character, clients such
// Spotify desktop app send SSDP M-SEARCH requests followed by an extra
// '\0' character which stays in the buffered stream and messes up parsing
// the next request.
while (line.GetLength() > 0 && line[0] == '\0') {
line = line.Erase(0, 1);
}
// when using keep-alive connections, clients such as XBox 360
// incorrectly send a few empty lines as body for GET requests
// so we try to skip them until we find something to parse
if (line.GetLength() == 0) goto skip_first_empty_line;
// check the request line
int first_space = line.Find(' ');
if (first_space < 0) {
NPT_LOG_FINE_1("http request: %s", line.GetChars());
return NPT_ERROR_HTTP_INVALID_REQUEST_LINE;
}
int second_space = line.Find(' ', first_space+1);
if (second_space < 0) {
NPT_LOG_FINE_1("http request: %s", line.GetChars());
return NPT_ERROR_HTTP_INVALID_REQUEST_LINE;
}
// parse the request line
NPT_String method = line.SubString(0, first_space);
NPT_String uri = line.SubString(first_space+1, second_space-first_space-1);
NPT_String protocol = line.SubString(second_space+1);
// create a request
bool proxy_style_request = false;
if (uri.StartsWith("http://", true)) {
// proxy-style request with absolute URI
request = new NPT_HttpRequest(uri, method, protocol);
proxy_style_request = true;
} else {
// normal absolute path request
request = new NPT_HttpRequest("http:", method, protocol);
}
// parse headers
NPT_Result result = request->ParseHeaders(stream);
if (NPT_FAILED(result)) {
delete request;
request = NULL;
return result;
}
// update the URL
if (!proxy_style_request) {
request->m_Url.SetScheme("http");
request->m_Url.ParsePathPlus(uri);
request->m_Url.SetPort(NPT_HTTP_DEFAULT_PORT);
// check for a Host: header
NPT_HttpHeader* host_header = request->GetHeaders().GetHeader(NPT_HTTP_HEADER_HOST);
if (host_header) {
request->m_Url.SetHost(host_header->GetValue());
// host sometimes doesn't contain port
if (endpoint) {
request->m_Url.SetPort(endpoint->GetPort());
}
} else {
// use the endpoint as the host
if (endpoint) {
request->m_Url.SetHost(endpoint->ToString());
} else {
// use defaults
request->m_Url.SetHost("localhost");
}
}
}
return NPT_SUCCESS;
}
/*----------------------------------------------------------------------
| NPT_HttpRequest::~NPT_HttpRequest
+---------------------------------------------------------------------*/
NPT_HttpRequest::~NPT_HttpRequest()
{
}
/*----------------------------------------------------------------------
| NPT_HttpRequest::Emit
+---------------------------------------------------------------------*/
NPT_Result
NPT_HttpRequest::Emit(NPT_OutputStream& stream, bool use_proxy) const
{
// write the request line
stream.WriteString(m_Method);
stream.WriteFully(" ", 1);
if (use_proxy) {
stream.WriteString(m_Url.ToString(false));
} else {
stream.WriteString(m_Url.ToRequestString());
}
stream.WriteFully(" ", 1);
stream.WriteString(m_Protocol);
stream.WriteFully(NPT_HTTP_LINE_TERMINATOR, 2);
// emit headers
m_Headers.Emit(stream);
// finish with an empty line
stream.WriteFully(NPT_HTTP_LINE_TERMINATOR, 2);
return NPT_SUCCESS;
}
/*----------------------------------------------------------------------
| NPT_HttpResponse::NPT_HttpResponse
+---------------------------------------------------------------------*/
NPT_HttpResponse::NPT_HttpResponse(NPT_HttpStatusCode status_code,
const char* reason_phrase,
const char* protocol) :
NPT_HttpMessage(protocol),
m_StatusCode(status_code),
m_ReasonPhrase(reason_phrase)
{
}
/*----------------------------------------------------------------------
| NPT_HttpResponse::~NPT_HttpResponse
+---------------------------------------------------------------------*/
NPT_HttpResponse::~NPT_HttpResponse()
{
}
/*----------------------------------------------------------------------
| NPT_HttpResponse::SetStatus
+---------------------------------------------------------------------*/
NPT_Result
NPT_HttpResponse::SetStatus(NPT_HttpStatusCode status_code,
const char* reason_phrase,
const char* protocol)
{
m_StatusCode = status_code;
m_ReasonPhrase = reason_phrase;
if (protocol) m_Protocol = protocol;
return NPT_SUCCESS;
}
/*----------------------------------------------------------------------
| NPT_HttpResponse::SetProtocol
+---------------------------------------------------------------------*/
NPT_Result
NPT_HttpResponse::SetProtocol(const char* protocol)
{
m_Protocol = protocol;
return NPT_SUCCESS;
}
/*----------------------------------------------------------------------
| NPT_HttpResponse::Emit
+---------------------------------------------------------------------*/
NPT_Result
NPT_HttpResponse::Emit(NPT_OutputStream& stream) const
{
// write the request line
stream.WriteString(m_Protocol);
stream.WriteFully(" ", 1);
stream.WriteString(NPT_String::FromInteger(m_StatusCode));
stream.WriteFully(" ", 1);
stream.WriteString(m_ReasonPhrase);
stream.WriteFully(NPT_HTTP_LINE_TERMINATOR, 2);
// emit headers
m_Headers.Emit(stream);
// finish with an empty line
stream.WriteFully(NPT_HTTP_LINE_TERMINATOR, 2);
return NPT_SUCCESS;
}
/*----------------------------------------------------------------------
| NPT_HttpResponse::Parse
+---------------------------------------------------------------------*/
NPT_Result
NPT_HttpResponse::Parse(NPT_BufferedInputStream& stream,
NPT_HttpResponse*& response)
{
// default return value
response = NULL;
// read the response line
NPT_String line;
NPT_CHECK_WARNING(stream.ReadLine(line, NPT_HTTP_PROTOCOL_MAX_LINE_LENGTH));
NPT_LOG_FINER_1("http response: %s", line.GetChars());
// check the response line
// we are lenient here, as we allow the response to deviate slightly from
// strict HTTP (for example, ICY servers response with a method equal to
// ICY insead of HTTP/1.X)
int first_space = line.Find(' ');
if (first_space < 1) return NPT_ERROR_HTTP_INVALID_RESPONSE_LINE;
int second_space = line.Find(' ', first_space+1);
if (second_space < 0) {
// some servers omit (incorrectly) the space and Reason-Code
// but we don't fail them just for that. Just check that the
// status code looks ok
if (line.GetLength() != 12) {
return NPT_ERROR_HTTP_INVALID_RESPONSE_LINE;
}
} else if (second_space-first_space != 4) {
// the status code is not of length 3
return NPT_ERROR_HTTP_INVALID_RESPONSE_LINE;
}
// parse the response line
NPT_String protocol = line.SubString(0, first_space);
NPT_String status_code = line.SubString(first_space+1, 3);
NPT_String reason_phrase = line.SubString(first_space+1+3+1,
line.GetLength()-(first_space+1+3+1));
// create a response object
NPT_UInt32 status_code_int = 0;
status_code.ToInteger(status_code_int);
response = new NPT_HttpResponse(status_code_int, reason_phrase, protocol);
// parse headers
NPT_Result result = response->ParseHeaders(stream);
if (NPT_FAILED(result)) {
delete response;
response = NULL;
}
return result;
}
/*----------------------------------------------------------------------
| NPT_HttpEnvProxySelector
+---------------------------------------------------------------------*/
class NPT_HttpEnvProxySelector : public NPT_HttpProxySelector,
public NPT_AutomaticCleaner::Singleton
{
public:
static NPT_HttpEnvProxySelector* GetInstance();
// NPT_HttpProxySelector methods
NPT_Result GetProxyForUrl(const NPT_HttpUrl& url, NPT_HttpProxyAddress& proxy) override;
private:
// class variables
static NPT_HttpEnvProxySelector* Instance;
// class methods
static void ParseProxyEnv(const NPT_String& env, NPT_HttpProxyAddress& proxy);
// members
NPT_HttpProxyAddress m_HttpProxy;
NPT_HttpProxyAddress m_HttpsProxy;
NPT_List<NPT_String> m_NoProxy;
NPT_HttpProxyAddress m_AllProxy;
};
NPT_HttpEnvProxySelector* NPT_HttpEnvProxySelector::Instance = NULL;
/*----------------------------------------------------------------------
| NPT_HttpEnvProxySelector::GetInstance
+---------------------------------------------------------------------*/
NPT_HttpEnvProxySelector*
NPT_HttpEnvProxySelector::GetInstance()
{
if (Instance) return Instance;
NPT_SingletonLock::GetInstance().Lock();
if (Instance == NULL) {
// create the shared instance
Instance = new NPT_HttpEnvProxySelector();
// prepare for recycling
NPT_AutomaticCleaner::GetInstance()->Register(Instance);
// parse the http proxy settings
NPT_String http_proxy;
NPT_Environment::Get("http_proxy", http_proxy);
ParseProxyEnv(http_proxy, Instance->m_HttpProxy);
NPT_LOG_FINE_2("http_proxy: %s:%d", Instance->m_HttpProxy.GetHostName().GetChars(), Instance->m_HttpProxy.GetPort());
// parse the https proxy settings
NPT_String https_proxy;
if (NPT_FAILED(NPT_Environment::Get("HTTPS_PROXY", https_proxy))) {
NPT_Environment::Get("https_proxy", https_proxy);
}
ParseProxyEnv(https_proxy, Instance->m_HttpsProxy);
NPT_LOG_FINE_2("https_proxy: %s:%d", Instance->m_HttpsProxy.GetHostName().GetChars(), Instance->m_HttpsProxy.GetPort());
// parse the all-proxy settings
NPT_String all_proxy;
if (NPT_FAILED(NPT_Environment::Get("ALL_PROXY", all_proxy))) {
NPT_Environment::Get("all_proxy", all_proxy);
}
ParseProxyEnv(all_proxy, Instance->m_AllProxy);
NPT_LOG_FINE_2("all_proxy: %s:%d", Instance->m_AllProxy.GetHostName().GetChars(), Instance->m_AllProxy.GetPort());
// parse the no-proxy settings
NPT_String no_proxy;
if (NPT_FAILED(NPT_Environment::Get("NO_PROXY", no_proxy))) {
NPT_Environment::Get("no_proxy", no_proxy);
}
if (no_proxy.GetLength()) {
Instance->m_NoProxy = no_proxy.Split(",");
}
}
NPT_SingletonLock::GetInstance().Unlock();
return Instance;
}
/*----------------------------------------------------------------------
| NPT_HttpEnvProxySelector::ParseProxyEnv
+---------------------------------------------------------------------*/
void
NPT_HttpEnvProxySelector::ParseProxyEnv(const NPT_String& env,
NPT_HttpProxyAddress& proxy)
{
// ignore empty strings
if (env.GetLength() == 0) return;
NPT_String proxy_spec;
if (env.Find("://") >= 0) {
proxy_spec = env;
} else {
proxy_spec = "http://"+env;
}
NPT_Url url(proxy_spec);
proxy.SetHostName(url.GetHost());
proxy.SetPort(url.GetPort());
}
/*----------------------------------------------------------------------
| NPT_HttpEnvProxySelector::GetProxyForUrl
+---------------------------------------------------------------------*/
NPT_Result
NPT_HttpEnvProxySelector::GetProxyForUrl(const NPT_HttpUrl& url,
NPT_HttpProxyAddress& proxy)
{
NPT_HttpProxyAddress* protocol_proxy = NULL;
switch (url.GetSchemeId()) {
case NPT_Uri::SCHEME_ID_HTTP:
protocol_proxy = &m_HttpProxy;
break;
case NPT_Uri::SCHEME_ID_HTTPS:
protocol_proxy = &m_HttpsProxy;
break;
default:
return NPT_ERROR_HTTP_NO_PROXY;
}
// check for no-proxy first
if (m_NoProxy.GetItemCount()) {
for (NPT_List<NPT_String>::Iterator i = m_NoProxy.GetFirstItem();
i;
++i) {
if ((*i) == "*") {
return NPT_ERROR_HTTP_NO_PROXY;
}
if (url.GetHost().EndsWith(*i, true)) {
if (url.GetHost().GetLength() == (*i).GetLength()) {
// exact match
return NPT_ERROR_HTTP_NO_PROXY;
}
if (url.GetHost().GetChars()[url.GetHost().GetLength()-(*i).GetLength()-1] == '.') {
// subdomain match
return NPT_ERROR_HTTP_NO_PROXY;
}
}
}
}
// check the protocol proxy
if (protocol_proxy->GetHostName().GetLength()) {
proxy = *protocol_proxy;
return NPT_SUCCESS;
}
// use the default proxy
proxy = m_AllProxy;
return proxy.GetHostName().GetLength()?NPT_SUCCESS:NPT_ERROR_HTTP_NO_PROXY;
}
/*----------------------------------------------------------------------
| NPT_HttpProxySelector::GetDefault
+---------------------------------------------------------------------*/
static bool NPT_HttpProxySelector_ConfigChecked = false;
static unsigned int NPT_HttpProxySelector_Config = 0;
const unsigned int NPT_HTTP_PROXY_SELECTOR_CONFIG_NONE = 0;
const unsigned int NPT_HTTP_PROXY_SELECTOR_CONFIG_ENV = 1;
const unsigned int NPT_HTTP_PROXY_SELECTOR_CONFIG_SYSTEM = 2;
NPT_HttpProxySelector*
NPT_HttpProxySelector::GetDefault()
{
if (!NPT_HttpProxySelector_ConfigChecked) {
NPT_String config;
if (NPT_SUCCEEDED(NPT_Environment::Get("NEPTUNE_NET_CONFIG_PROXY_SELECTOR", config))) {
if (config.Compare("noproxy", true) == 0) {
NPT_HttpProxySelector_Config = NPT_HTTP_PROXY_SELECTOR_CONFIG_NONE;
} else if (config.Compare("env", true) == 0) {
NPT_HttpProxySelector_Config = NPT_HTTP_PROXY_SELECTOR_CONFIG_ENV;
} else if (config.Compare("system", true) == 0) {
NPT_HttpProxySelector_Config = NPT_HTTP_PROXY_SELECTOR_CONFIG_SYSTEM;
} else {
NPT_HttpProxySelector_Config = NPT_HTTP_PROXY_SELECTOR_CONFIG_NONE;
}
}
NPT_HttpProxySelector_ConfigChecked = true;
}
switch (NPT_HttpProxySelector_Config) {
case NPT_HTTP_PROXY_SELECTOR_CONFIG_NONE:
// no proxy
return NULL;
case NPT_HTTP_PROXY_SELECTOR_CONFIG_ENV:
// use the shared instance
return NPT_HttpEnvProxySelector::GetInstance();
case NPT_HTTP_PROXY_SELECTOR_CONFIG_SYSTEM:
// use the sytem proxy selector
return GetSystemSelector();
default:
return NULL;
}
}
/*----------------------------------------------------------------------
| NPT_HttpProxySelector::GetSystemSelector
+---------------------------------------------------------------------*/
#if !defined(NPT_CONFIG_HAVE_SYSTEM_PROXY_SELECTOR)
NPT_HttpProxySelector*
NPT_HttpProxySelector::GetSystemSelector()
{
return NULL;
}
#endif
/*----------------------------------------------------------------------
| NPT_HttpStaticProxySelector
+---------------------------------------------------------------------*/
class NPT_HttpStaticProxySelector : public NPT_HttpProxySelector
{
public:
// constructor
NPT_HttpStaticProxySelector(const char* http_propxy_hostname,
NPT_UInt16 http_proxy_port,
const char* https_proxy_hostname,
NPT_UInt16 htts_proxy_port);
// NPT_HttpProxySelector methods
NPT_Result GetProxyForUrl(const NPT_HttpUrl& url, NPT_HttpProxyAddress& proxy) override;
private:
// members
NPT_HttpProxyAddress m_HttpProxy;
NPT_HttpProxyAddress m_HttpsProxy;
};
/*----------------------------------------------------------------------
| NPT_HttpStaticProxySelector::NPT_HttpStaticProxySelector
+---------------------------------------------------------------------*/
NPT_HttpStaticProxySelector::NPT_HttpStaticProxySelector(const char* http_proxy_hostname,
NPT_UInt16 http_proxy_port,
const char* https_proxy_hostname,
NPT_UInt16 https_proxy_port) :
m_HttpProxy( http_proxy_hostname, http_proxy_port),
m_HttpsProxy(https_proxy_hostname, https_proxy_port)
{
}
/*----------------------------------------------------------------------
| NPT_HttpStaticProxySelector::GetProxyForUrl
+---------------------------------------------------------------------*/
NPT_Result
NPT_HttpStaticProxySelector::GetProxyForUrl(const NPT_HttpUrl& url,
NPT_HttpProxyAddress& proxy)
{
switch (url.GetSchemeId()) {
case NPT_Uri::SCHEME_ID_HTTP:
proxy = m_HttpProxy;
break;
case NPT_Uri::SCHEME_ID_HTTPS:
proxy = m_HttpsProxy;
break;
default:
return NPT_ERROR_HTTP_NO_PROXY;
}
return NPT_SUCCESS;
}
/*----------------------------------------------------------------------
| NPT_HttpConnectionManager::NPT_HttpConnectionManager
+---------------------------------------------------------------------*/
NPT_HttpConnectionManager::NPT_HttpConnectionManager() :
m_Lock(true),
m_MaxConnections(NPT_HTTP_CONNECTION_MANAGER_MAX_CONNECTION_POOL_SIZE),
m_MaxConnectionAge(NPT_HTTP_CONNECTION_MANAGER_MAX_CONNECTION_AGE)
{
}
/*----------------------------------------------------------------------
| NPT_HttpConnectionManager::~NPT_HttpConnectionManager
+---------------------------------------------------------------------*/
NPT_HttpConnectionManager::~NPT_HttpConnectionManager()
{
// set abort flag and wait for thread to finish
m_Aborted.SetValue(1);
Wait();
m_Connections.Apply(NPT_ObjectDeleter<Connection>());
}
/*----------------------------------------------------------------------
| NPT_HttpConnectionManager::GetInstance
+---------------------------------------------------------------------*/
NPT_HttpConnectionManager*
NPT_HttpConnectionManager::GetInstance()
{
if (Instance) return Instance;
NPT_SingletonLock::GetInstance().Lock();
if (Instance == NULL) {
// create the shared instance
Instance = new NPT_HttpConnectionManager();
// register to for automatic cleanup
NPT_AutomaticCleaner::GetInstance()->RegisterHttpConnectionManager(Instance);
// Start shared instance
Instance->Start();
}
NPT_SingletonLock::GetInstance().Unlock();
return Instance;
}
NPT_HttpConnectionManager* NPT_HttpConnectionManager::Instance = NULL;
/*----------------------------------------------------------------------
| NPT_HttpConnectionManager::Run
+---------------------------------------------------------------------*/
void
NPT_HttpConnectionManager::Run()
{
// try to cleanup every 5 secs
while (m_Aborted.WaitUntilEquals(1, 5000) == NPT_ERROR_TIMEOUT) {
NPT_AutoLock lock(m_Lock);
Cleanup();
}
}
/*----------------------------------------------------------------------
| NPT_HttpConnectionManager::Cleanup
+---------------------------------------------------------------------*/
NPT_Result
NPT_HttpConnectionManager::Cleanup()
{
NPT_TimeStamp now;
NPT_System::GetCurrentTimeStamp(now);
NPT_TimeStamp delta((float)m_MaxConnectionAge);
NPT_List<Connection*>::Iterator tail = m_Connections.GetLastItem();
while (tail) {
if (now < (*tail)->m_TimeStamp + delta) break;
NPT_LOG_FINE_1("cleaning up connection (%d remain)", m_Connections.GetItemCount());
delete *tail;
m_Connections.Erase(tail);
tail = m_Connections.GetLastItem();
}
return NPT_SUCCESS;
}
/*----------------------------------------------------------------------
| NPT_HttpConnectionManager::FindConnection
+---------------------------------------------------------------------*/
NPT_HttpConnectionManager::Connection*
NPT_HttpConnectionManager::FindConnection(NPT_SocketAddress& address)
{
NPT_AutoLock lock(m_Lock);
Cleanup();
for (NPT_List<Connection*>::Iterator i = m_Connections.GetFirstItem();
i;
++i) {
Connection* connection = *i;
NPT_SocketInfo info;
if (NPT_FAILED(connection->GetInfo(info))) continue;
if (info.remote_address == address) {
m_Connections.Erase(i);
return connection;
}
}
// not found
return NULL;
}
/*----------------------------------------------------------------------
| NPT_HttpConnectionManager::Track
+---------------------------------------------------------------------*/
NPT_Result
NPT_HttpConnectionManager::Track(NPT_HttpClient* client, NPT_HttpClient::Connection* connection)
{
NPT_AutoLock lock(m_Lock);
// look if already tracking client connections
ConnectionList* connections = NULL;
if (NPT_SUCCEEDED(m_ClientConnections.Get(client, connections))) {
// return immediately if connection is already associated with client
if (connections->Find(NPT_ObjectComparator<NPT_HttpClient::Connection*>(connection))) {
NPT_LOG_WARNING("Connection already associated to client.");
return NPT_SUCCESS;
}
connections->Add(connection);
return NPT_SUCCESS;
}
// new client connections
ConnectionList new_connections;
// add connection to new client connection list
new_connections.Add(connection);
// track new client connections
m_ClientConnections.Put(client, new_connections);
return NPT_SUCCESS;
}
/*----------------------------------------------------------------------
| NPT_HttpConnectionManager::UntrackConnection
+---------------------------------------------------------------------*/
NPT_Result
NPT_HttpConnectionManager::UntrackConnection(NPT_HttpClient::Connection* connection)
{
NPT_AutoLock lock(m_Lock);
if (!connection) {
return NPT_ERROR_INVALID_PARAMETERS;
}
// look for connection by enumerating all client connections
NPT_List<NPT_Map<NPT_HttpClient*, ConnectionList>::Entry*>::Iterator entry =
m_ClientConnections.GetEntries().GetFirstItem();
while (entry) {
NPT_HttpClient*& client = (NPT_HttpClient*&)(*entry)->GetKey();
ConnectionList& connections = (ConnectionList&)(*entry)->GetValue();
// look for connection in client connection list
NPT_List<NPT_HttpClient::Connection*>::Iterator i =
connections.Find(NPT_ObjectComparator<NPT_HttpClient::Connection*>(connection));
if (i) {
// remove it
connections.Erase(i);
// untrack client if no more active connections for it
if (connections.GetItemCount() == 0) {
m_ClientConnections.Erase(client);
}
return NPT_SUCCESS;
}
++entry;
}
return NPT_ERROR_NO_SUCH_ITEM;
}
/*----------------------------------------------------------------------
| NPT_HttpConnectionManager::Untrack
+---------------------------------------------------------------------*/
NPT_Result
NPT_HttpConnectionManager::Untrack(NPT_HttpClient::Connection* connection)
{
// check first if ConnectionCanceller Instance has not been released already
// with static finalizers
if (Instance == NULL) return NPT_FAILURE;
return GetInstance()->UntrackConnection(connection);
}
/*----------------------------------------------------------------------
| NPT_HttpConnectionManager::Recycle
+---------------------------------------------------------------------*/
NPT_Result
NPT_HttpConnectionManager::Recycle(NPT_HttpConnectionManager::Connection* connection)
{
// Untrack connection
UntrackConnection(connection);
{
NPT_AutoLock lock(m_Lock);
Cleanup();
// remove older connections to make room
while (m_Connections.GetItemCount() >= m_MaxConnections) {
NPT_List<Connection*>::Iterator head = m_Connections.GetFirstItem();
if (!head) break;
delete *head;
m_Connections.Erase(head);
NPT_LOG_FINER("removing connection from pool to make some room");
}
if (connection) {
// label this connection with the current timestamp and flag
NPT_System::GetCurrentTimeStamp(connection->m_TimeStamp);
connection->m_IsRecycled = true;
// add the connection to the pool
m_Connections.Add(connection);
}
}
return NPT_SUCCESS;
}
/*----------------------------------------------------------------------
| NPT_HttpConnectionManager::AbortConnections
+---------------------------------------------------------------------*/
NPT_Result
NPT_HttpConnectionManager::AbortConnections(NPT_HttpClient* client)
{
NPT_AutoLock lock(m_Lock);
ConnectionList* connections = NULL;
if (NPT_SUCCEEDED(m_ClientConnections.Get(client, connections))) {
for (NPT_List<NPT_HttpClient::Connection*>::Iterator i = connections->GetFirstItem();
i;
++i) {
(*i)->Abort();
}
}
return NPT_SUCCESS;
}
/*----------------------------------------------------------------------
| NPT_HttpConnectionManager::Connection::Connection
+---------------------------------------------------------------------*/
NPT_HttpConnectionManager::Connection::Connection(NPT_HttpConnectionManager& manager,
NPT_SocketReference& socket,
NPT_InputStreamReference input_stream,
NPT_OutputStreamReference output_stream) :
m_Manager(manager),
m_IsRecycled(false),
m_Socket(socket),
m_InputStream(input_stream),
m_OutputStream(output_stream)
{
}
/*----------------------------------------------------------------------
| NPT_HttpConnectionManager::Connection::~Connection
+---------------------------------------------------------------------*/
NPT_HttpConnectionManager::Connection::~Connection()
{
NPT_HttpConnectionManager::Untrack(this);
}
/*----------------------------------------------------------------------
| NPT_HttpConnectionManager::Connection::Recycle
+---------------------------------------------------------------------*/
NPT_Result
NPT_HttpConnectionManager::Connection::Recycle()
{
return m_Manager.Recycle(this);
}
/*----------------------------------------------------------------------
| NPT_HttpClient::NPT_HttpClient
+---------------------------------------------------------------------*/
NPT_HttpClient::NPT_HttpClient(Connector* connector, bool transfer_ownership) :
m_ProxySelector(NPT_HttpProxySelector::GetDefault()),
m_ProxySelectorIsOwned(false),
m_Connector(connector),
m_ConnectorIsOwned(transfer_ownership),
m_Aborted(false)
{
if (connector == NULL) {
m_Connector = new NPT_HttpTlsConnector();
m_ConnectorIsOwned = true;
}
}
/*----------------------------------------------------------------------
| NPT_HttpClient::~NPT_HttpClient
+---------------------------------------------------------------------*/
NPT_HttpClient::~NPT_HttpClient()
{
if (m_ProxySelectorIsOwned) {
delete m_ProxySelector;
}
if (m_ConnectorIsOwned) {
delete m_Connector;
}
}
/*----------------------------------------------------------------------
| NPT_HttpClient::SetConfig
+---------------------------------------------------------------------*/
NPT_Result
NPT_HttpClient::SetConfig(const Config& config)
{
m_Config = config;
return NPT_SUCCESS;
}
/*----------------------------------------------------------------------
| NPT_HttpClient::SetProxy
+---------------------------------------------------------------------*/
NPT_Result
NPT_HttpClient::SetProxy(const char* http_proxy_hostname,
NPT_UInt16 http_proxy_port,
const char* https_proxy_hostname,
NPT_UInt16 https_proxy_port)
{
if (m_ProxySelectorIsOwned) {
delete m_ProxySelector;
m_ProxySelector = NULL;
m_ProxySelectorIsOwned = false;
}
// use a static proxy to hold on to the settings
m_ProxySelector = new NPT_HttpStaticProxySelector(http_proxy_hostname,
http_proxy_port,
https_proxy_hostname,
https_proxy_port);
m_ProxySelectorIsOwned = true;
return NPT_SUCCESS;
}
/*----------------------------------------------------------------------
| NPT_HttpClient::SetProxySelector
+---------------------------------------------------------------------*/
NPT_Result
NPT_HttpClient::SetProxySelector(NPT_HttpProxySelector* selector)
{
if (m_ProxySelectorIsOwned && m_ProxySelector != selector) {
delete m_ProxySelector;
}
m_ProxySelector = selector;
m_ProxySelectorIsOwned = false;
return NPT_SUCCESS;
}
/*----------------------------------------------------------------------
| NPT_HttpClient::SetConnector
+---------------------------------------------------------------------*/
NPT_Result
NPT_HttpClient::SetConnector(Connector* connector)
{
if (m_ConnectorIsOwned && m_Connector != connector) {
delete m_Connector;
}
m_Connector = connector;
m_ConnectorIsOwned = false;
return NPT_SUCCESS;
}
/*----------------------------------------------------------------------
| NPT_HttpClient::SetTimeouts
+---------------------------------------------------------------------*/
NPT_Result
NPT_HttpClient::SetTimeouts(NPT_Timeout connection_timeout,
NPT_Timeout io_timeout,
NPT_Timeout name_resolver_timeout)
{
m_Config.m_ConnectionTimeout = connection_timeout;
m_Config.m_IoTimeout = io_timeout;
m_Config.m_NameResolverTimeout = name_resolver_timeout;
return NPT_SUCCESS;
}
/*----------------------------------------------------------------------
| NPT_HttpClient::SetUserAgent
+---------------------------------------------------------------------*/
NPT_Result
NPT_HttpClient::SetUserAgent(const char* user_agent)
{
m_Config.m_UserAgent = user_agent;
return NPT_SUCCESS;
}
/*----------------------------------------------------------------------
| NPT_HttpClient::TrackConnection
+---------------------------------------------------------------------*/
NPT_Result
NPT_HttpClient::TrackConnection(Connection* connection)
{
NPT_AutoLock lock(m_AbortLock);
if (m_Aborted) return NPT_ERROR_CANCELLED;
return NPT_HttpConnectionManager::GetInstance()->Track(this, connection);
}
/*----------------------------------------------------------------------
| NPT_HttpClient::SendRequestOnce
+---------------------------------------------------------------------*/
NPT_Result
NPT_HttpClient::SendRequestOnce(NPT_HttpRequest& request,
NPT_HttpResponse*& response,
NPT_HttpRequestContext* context /* = NULL */)
{
// setup default values
NPT_Result result = NPT_SUCCESS;
response = NULL;
NPT_LOG_FINE_1("requesting URL %s", request.GetUrl().ToString().GetChars());
// get the address and port to which we need to connect
NPT_HttpProxyAddress proxy;
bool use_proxy = false;
if (m_ProxySelector) {
// we have a proxy selector, ask it to select a proxy for this URL
result = m_ProxySelector->GetProxyForUrl(request.GetUrl(), proxy);
if (NPT_FAILED(result) && result != NPT_ERROR_HTTP_NO_PROXY) {
NPT_LOG_WARNING_1("proxy selector failure (%d)", result);
return result;
}
use_proxy = !proxy.GetHostName().IsEmpty();
}
// connect to the server or proxy
Connection* connection = NULL;
bool http_1_1 = (request.GetProtocol() == NPT_HTTP_PROTOCOL_1_1);
NPT_Reference<Connection> cref;
// send the request to the server (in a loop, since we may need to reconnect with 1.1)
bool reconnect = false;
unsigned int watchdog = NPT_HTTP_MAX_RECONNECTS;
do {
cref = NULL;
connection = NULL;
NPT_LOG_FINE_3("calling connector (proxy:%s) (http 1.1:%s) (url:%s)",
use_proxy?"yes":"no", http_1_1?"yes":"no", request.GetUrl().ToStringWithDefaultPort(0).GetChars());
NPT_CHECK_WARNING(m_Connector->Connect(request.GetUrl(),
*this,
use_proxy?&proxy:NULL,
http_1_1,
connection));
NPT_LOG_FINE_1("got connection (reused: %s)", connection->IsRecycled()?"true":"false");
NPT_InputStreamReference input_stream = connection->GetInputStream();
NPT_OutputStreamReference output_stream = connection->GetOutputStream();
cref = connection;
reconnect = connection->IsRecycled();
// update context if any
if (context) {
NPT_SocketInfo info;
cref->GetInfo(info);
context->SetLocalAddress(info.local_address);
context->SetRemoteAddress(info.remote_address);
}
NPT_HttpEntity* entity = request.GetEntity();
NPT_InputStreamReference body_stream;
if (reconnect && entity && NPT_SUCCEEDED(entity->GetInputStream(body_stream)) && NPT_FAILED(body_stream->Seek(0))) {
// if body is not seekable, we can't afford to reuse a connection
// that could fail, so we reconnect a new one instead
NPT_LOG_FINE("rewinding body stream would fail ... create new connection");
continue;
}
// decide if this connection should persist
NPT_HttpHeaders& headers = request.GetHeaders();
bool should_persist = http_1_1;
if (!connection->SupportsPersistence()) {
should_persist = false;
}
if (should_persist) {
const NPT_String* connection_header = headers.GetHeaderValue(NPT_HTTP_HEADER_CONNECTION);
if (connection_header && (*connection_header == "close")) {
should_persist = false;
}
}
if (m_Config.m_UserAgent.GetLength()) {
headers.SetHeader(NPT_HTTP_HEADER_USER_AGENT, m_Config.m_UserAgent, false); // set but don't replace
}
result = WriteRequest(*output_stream.AsPointer(), request, should_persist, use_proxy);
if (NPT_FAILED(result)) {
NPT_LOG_FINE_1("failed to write request headers (%d)", result);
if (reconnect && !m_Aborted) {
if (!body_stream.IsNull()) {
// go back to the start of the body so that we can resend
NPT_LOG_FINE("rewinding body stream in order to resend");
result = body_stream->Seek(0);
if (NPT_FAILED(result)) {
NPT_CHECK_FINE(NPT_ERROR_HTTP_CANNOT_RESEND_BODY);
}
}
continue;
} else {
return result;
}
}
result = ReadResponse(input_stream,
should_persist,
request.GetMethod() != NPT_HTTP_METHOD_HEAD,
response,
&cref);
if (NPT_FAILED(result)) {
NPT_LOG_FINE_1("failed to parse the response (%d)", result);
if (reconnect && !m_Aborted /*&&
(result == NPT_ERROR_EOS ||
result == NPT_ERROR_CONNECTION_ABORTED ||
result == NPT_ERROR_CONNECTION_RESET ||
result == NPT_ERROR_READ_FAILED) GBG: don't look for specific error codes */) {
NPT_LOG_FINE("error is not fatal, retrying");
if (!body_stream.IsNull()) {
// go back to the start of the body so that we can resend
NPT_LOG_FINE("rewinding body stream in order to resend");
result = body_stream->Seek(0);
if (NPT_FAILED(result)) {
NPT_CHECK_FINE(NPT_ERROR_HTTP_CANNOT_RESEND_BODY);
}
}
continue;
} else {
// don't retry
return result;
}
}
break;
} while (reconnect && --watchdog && !m_Aborted);
// check that we have a valid connection
if (NPT_FAILED(result) && !m_Aborted) {
NPT_LOG_FINE("failed after max reconnection attempts");
return NPT_ERROR_HTTP_TOO_MANY_RECONNECTS;
}
return result;
}
/*----------------------------------------------------------------------
| NPT_HttpClient::WriteRequest
+---------------------------------------------------------------------*/
NPT_Result
NPT_HttpClient::WriteRequest(NPT_OutputStream& output_stream,
NPT_HttpRequest& request,
bool should_persist,
bool use_proxy /* = false */)
{
NPT_Result result = NPT_SUCCESS;
// add any headers that may be missing
NPT_HttpHeaders& headers = request.GetHeaders();
if (!should_persist) {
headers.SetHeader(NPT_HTTP_HEADER_CONNECTION, "close", false); // set but don't replace
}
NPT_String host = request.GetUrl().GetHost();
NPT_UInt16 default_port = 0;
switch (request.GetUrl().GetSchemeId()) {
case NPT_Uri::SCHEME_ID_HTTP: default_port = NPT_HTTP_DEFAULT_PORT; break;
case NPT_Uri::SCHEME_ID_HTTPS: default_port = NPT_HTTPS_DEFAULT_PORT; break;
default: break;
}
if (request.GetUrl().GetPort() != default_port) {
host += ":";
host += NPT_String::FromInteger(request.GetUrl().GetPort());
}
headers.SetHeader(NPT_HTTP_HEADER_HOST, host, false); // set but don't replace
// get the request entity to set additional headers
NPT_InputStreamReference body_stream;
NPT_HttpEntity* entity = request.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::FromInteger(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);
}
}
// create a memory stream to buffer the headers
NPT_MemoryStream header_stream;
// emit the request headers into the header buffer
request.Emit(header_stream, use_proxy && request.GetUrl().GetSchemeId()==NPT_Url::SCHEME_ID_HTTP);
// send the headers
NPT_CHECK_WARNING(output_stream.WriteFully(header_stream.GetData(), header_stream.GetDataSize()));
// send request body
if (entity && !body_stream.IsNull()) {
// check for chunked transfer encoding
NPT_OutputStream* dest = &output_stream;
if (entity->GetTransferEncoding() == NPT_HTTP_TRANSFER_ENCODING_CHUNKED) {
dest = new NPT_HttpChunkedOutputStream(output_stream);
}
NPT_LOG_FINE_1("sending body stream, %lld bytes", entity->GetContentLength()); //FIXME: Would be 0 for chunked encoding
NPT_LargeSize bytes_written = 0;
// content length = 0 means copy until input returns EOS
result = NPT_StreamToStreamCopy(*body_stream.AsPointer(), *dest, 0, entity->GetContentLength(), &bytes_written);
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;
}
// flush the output stream so that everything is sent to the server
output_stream.Flush();
return result;
}
/*----------------------------------------------------------------------
| NPT_HttpClient::ReadResponse
+---------------------------------------------------------------------*/
NPT_Result
NPT_HttpClient::ReadResponse(NPT_InputStreamReference& input_stream,
bool should_persist,
bool expect_entity,
NPT_HttpResponse*& response,
NPT_Reference<Connection>* cref /* = NULL */)
{
NPT_Result result;
// setup default values
response = NULL;
// create a buffered stream for this socket stream
NPT_BufferedInputStreamReference buffered_input_stream(new NPT_BufferedInputStream(input_stream));
// parse the response
for (unsigned int watchcat = 0; watchcat < NPT_HTTP_MAX_100_RESPONSES; watchcat++) {
// parse the response
result = NPT_HttpResponse::Parse(*buffered_input_stream, response);
NPT_CHECK_FINE(result);
if (response->GetStatusCode() >= 100 && response->GetStatusCode() < 200) {
NPT_LOG_FINE_1("got %d response, continuing", response->GetStatusCode());
delete response;
response = NULL;
continue;
}
NPT_LOG_FINER_2("got response, code=%d, msg=%s",
response->GetStatusCode(),
response->GetReasonPhrase().GetChars());
break;
}
// check that we have a valid response
if (response == NULL) {
NPT_LOG_FINE("failed after max continuation attempts");
return NPT_ERROR_HTTP_TOO_MANY_RECONNECTS;
}
// unbuffer the stream
buffered_input_stream->SetBufferSize(0);
// decide if we should still try to reuse this connection later on
if (should_persist) {
const NPT_String* connection_header = response->GetHeaders().GetHeaderValue(NPT_HTTP_HEADER_CONNECTION);
if (response->GetProtocol() == NPT_HTTP_PROTOCOL_1_1) {
if (connection_header && (*connection_header == "close")) {
should_persist = false;
}
} else {
if (!connection_header || (*connection_header != "keep-alive")) {
should_persist = false;
}
}
}
// create an entity if one is expected in the response
if (expect_entity) {
NPT_HttpEntity* response_entity = new NPT_HttpEntity(response->GetHeaders());
// check if the content length is known
bool have_content_length = (response->GetHeaders().GetHeaderValue(NPT_HTTP_HEADER_CONTENT_LENGTH) != NULL);
// check for chunked Transfer-Encoding
bool chunked = false;
if (response_entity->GetTransferEncoding() == NPT_HTTP_TRANSFER_ENCODING_CHUNKED) {
chunked = true;
response_entity->SetTransferEncoding(NULL);
}
// prepare to transfer ownership of the connection if needed
Connection* connection = NULL;
if (cref) {
connection = cref->AsPointer();
cref->Detach(); // release the internal ref
// don't delete connection now so we can abort while readin response body,
// just pass ownership to NPT_HttpEntityBodyInputStream so it can recycle it
// when done if connection should persist
}
// create the body stream wrapper
NPT_InputStream* response_body_stream =
new NPT_HttpEntityBodyInputStream(buffered_input_stream,
response_entity->GetContentLength(),
have_content_length,
chunked,
connection,
should_persist);
response_entity->SetInputStream(NPT_InputStreamReference(response_body_stream));
response->SetEntity(response_entity);
} else {
if (should_persist && cref) {
Connection* connection = cref->AsPointer();
cref->Detach(); // release the internal ref
connection->Recycle();
}
}
return NPT_SUCCESS;
}
/*----------------------------------------------------------------------
| NPT_HttpClient::SendRequest
+---------------------------------------------------------------------*/
NPT_Result
NPT_HttpClient::SendRequest(NPT_HttpRequest& request,
NPT_HttpResponse*& response,
NPT_HttpRequestContext* context /* = NULL */)
{
NPT_Cardinal watchdog = m_Config.m_MaxRedirects+1;
bool keep_going;
NPT_Result result;
// reset aborted flag
m_Aborted = false;
// default value
response = NULL;
// check that for GET requests there is no entity
if (request.GetEntity() != NULL &&
request.GetMethod() == NPT_HTTP_METHOD_GET) {
return NPT_ERROR_HTTP_INVALID_REQUEST;
}
do {
keep_going = false;
result = SendRequestOnce(request, response, context);
if (NPT_FAILED(result)) break;
if (response && m_Config.m_MaxRedirects &&
(request.GetMethod() == NPT_HTTP_METHOD_GET ||
request.GetMethod() == NPT_HTTP_METHOD_HEAD) &&
(response->GetStatusCode() == 301 ||
response->GetStatusCode() == 302 ||
response->GetStatusCode() == 303 ||
response->GetStatusCode() == 307)) {
// handle redirect
const NPT_String* location = response->GetHeaders().GetHeaderValue(NPT_HTTP_HEADER_LOCATION);
if (location) {
// check for location fields that are not absolute URLs
// (this is not allowed by the standard, but many web servers do it
if (location->StartsWith("/") ||
(!location->StartsWith("http://", true) &&
!location->StartsWith("https://", true))) {
NPT_LOG_FINE_1("Location: header (%s) is not an absolute URL, using it as a relative URL", location->GetChars());
if (location->StartsWith("/")) {
NPT_LOG_FINE_1("redirecting to absolute path %s", location->GetChars());
request.GetUrl().ParsePathPlus(*location);
} else {
NPT_String redirect_path = request.GetUrl().GetPath();
int slash_pos = redirect_path.ReverseFind('/');
if (slash_pos >= 0) {
redirect_path.SetLength(slash_pos+1);
} else {
redirect_path = "/";
}
redirect_path += *location;
NPT_LOG_FINE_1("redirecting to absolute path %s", redirect_path.GetChars());
request.GetUrl().ParsePathPlus(redirect_path);
}
} else {
// replace the request url
NPT_LOG_FINE_1("redirecting to %s", location->GetChars());
request.SetUrl(*location);
// remove host header so it is replaced based on new url
request.GetHeaders().RemoveHeader(NPT_HTTP_HEADER_HOST);
}
keep_going = true;
delete response;
response = NULL;
}
}
} while (keep_going && --watchdog && !m_Aborted);
// check if we were bitten by the watchdog
if (watchdog == 0) {
NPT_LOG_WARNING("too many HTTP redirects");
return NPT_ERROR_HTTP_TOO_MANY_REDIRECTS;
}
return result;
}
/*----------------------------------------------------------------------
| NPT_HttpClient::Abort
+---------------------------------------------------------------------*/
NPT_Result
NPT_HttpClient::Abort()
{
NPT_AutoLock lock(m_AbortLock);
m_Aborted = true;
NPT_HttpConnectionManager::GetInstance()->AbortConnections(this);
return NPT_SUCCESS;
}
/*----------------------------------------------------------------------
| NPT_HttpRequestContext::NPT_HttpRequestContext
+---------------------------------------------------------------------*/
NPT_HttpRequestContext::NPT_HttpRequestContext(const NPT_SocketAddress* local_address,
const NPT_SocketAddress* remote_address)
{
if (local_address) m_LocalAddress = *local_address;
if (remote_address) m_RemoteAddress = *remote_address;
}
/*----------------------------------------------------------------------
| NPT_HttpServer::NPT_HttpServer
+---------------------------------------------------------------------*/
NPT_HttpServer::NPT_HttpServer(NPT_UInt16 listen_port, bool cancellable) :
m_Socket(cancellable?NPT_SOCKET_FLAG_CANCELLABLE:0),
m_BoundPort(0),
m_ServerHeader("Neptune/" NPT_NEPTUNE_VERSION_STRING),
m_Run(true)
{
m_Config.m_ListenAddress = NPT_IpAddress::Any;
m_Config.m_ListenPort = listen_port;
m_Config.m_IoTimeout = NPT_HTTP_SERVER_DEFAULT_IO_TIMEOUT;
m_Config.m_ConnectionTimeout = NPT_HTTP_SERVER_DEFAULT_CONNECTION_TIMEOUT;
m_Config.m_ReuseAddress = true;
}
/*----------------------------------------------------------------------
| NPT_HttpServer::NPT_HttpServer
+---------------------------------------------------------------------*/
NPT_HttpServer::NPT_HttpServer(NPT_IpAddress listen_address,
NPT_UInt16 listen_port,
bool cancellable) :
m_Socket(cancellable?NPT_SOCKET_FLAG_CANCELLABLE:0),
m_BoundPort(0),
m_ServerHeader("Neptune/" NPT_NEPTUNE_VERSION_STRING),
m_Run(true)
{
m_Config.m_ListenAddress = listen_address;
m_Config.m_ListenPort = listen_port;
m_Config.m_IoTimeout = NPT_HTTP_SERVER_DEFAULT_IO_TIMEOUT;
m_Config.m_ConnectionTimeout = NPT_HTTP_SERVER_DEFAULT_CONNECTION_TIMEOUT;
m_Config.m_ReuseAddress = true;
}
/*----------------------------------------------------------------------
| NPT_HttpServer::~NPT_HttpServer
+---------------------------------------------------------------------*/
NPT_HttpServer::~NPT_HttpServer()
{
m_RequestHandlers.Apply(NPT_ObjectDeleter<HandlerConfig>());
}
/*----------------------------------------------------------------------
| NPT_HttpServer::Bind
+---------------------------------------------------------------------*/
NPT_Result
NPT_HttpServer::Bind()
{
// check if we're already bound
if (m_BoundPort != 0) return NPT_SUCCESS;
// bind
NPT_Result result = m_Socket.Bind(
NPT_SocketAddress(m_Config.m_ListenAddress, m_Config.m_ListenPort),
m_Config.m_ReuseAddress);
if (NPT_FAILED(result)) return result;
// update the bound port info
NPT_SocketInfo info;
m_Socket.GetInfo(info);
m_BoundPort = info.local_address.GetPort();
return NPT_SUCCESS;
}
/*----------------------------------------------------------------------
| NPT_HttpServer::SetConfig
+---------------------------------------------------------------------*/
NPT_Result
NPT_HttpServer::SetConfig(const Config& config)
{
m_Config = config;
// check that we can bind to this listen port
return Bind();
}
/*----------------------------------------------------------------------
| NPT_HttpServer::SetListenPort
+---------------------------------------------------------------------*/
NPT_Result
NPT_HttpServer::SetListenPort(NPT_UInt16 port, bool reuse_address)
{
m_Config.m_ListenPort = port;
m_Config.m_ReuseAddress = reuse_address;
return Bind();
}
/*----------------------------------------------------------------------
| NPT_HttpServer::SetTimeouts
+---------------------------------------------------------------------*/
NPT_Result
NPT_HttpServer::SetTimeouts(NPT_Timeout connection_timeout,
NPT_Timeout io_timeout)
{
m_Config.m_ConnectionTimeout = connection_timeout;
m_Config.m_IoTimeout = io_timeout;
return NPT_SUCCESS;
}
/*----------------------------------------------------------------------
| NPT_HttpServer::SetServerHeader
+---------------------------------------------------------------------*/
NPT_Result
NPT_HttpServer::SetServerHeader(const char* server_header)
{
m_ServerHeader = server_header;
return NPT_SUCCESS;
}
/*----------------------------------------------------------------------
| NPT_HttpServer::Abort
+---------------------------------------------------------------------*/
NPT_Result
NPT_HttpServer::Abort()
{
m_Socket.Cancel();
return NPT_SUCCESS;
}
/*----------------------------------------------------------------------
| NPT_HttpServer::WaitForNewClient
+---------------------------------------------------------------------*/
NPT_Result
NPT_HttpServer::WaitForNewClient(NPT_InputStreamReference& input,
NPT_OutputStreamReference& output,
NPT_HttpRequestContext* context,
NPT_Flags socket_flags)
{
// ensure that we're bound
NPT_CHECK_FINE(Bind());
// wait for a connection
NPT_Socket* client;
NPT_LOG_FINE_2("waiting for new connection on %s:%d...",
(const char*)m_Config.m_ListenAddress.ToString(),
m_BoundPort);
NPT_Result result = m_Socket.WaitForNewClient(client, m_Config.m_ConnectionTimeout, socket_flags);
if (result != NPT_ERROR_TIMEOUT) {
NPT_CHECK_WARNING(result);
} else {
NPT_CHECK_FINE(result);
}
if (client == NULL) return NPT_ERROR_INTERNAL;
// get the client info
if (context) {
NPT_SocketInfo client_info;
client->GetInfo(client_info);
context->SetLocalAddress(client_info.local_address);
context->SetRemoteAddress(client_info.remote_address);
NPT_LOG_FINE_2("client connected (%s <- %s)",
client_info.local_address.ToString().GetChars(),
client_info.remote_address.ToString().GetChars());
}
// configure the socket
client->SetReadTimeout(m_Config.m_IoTimeout);
client->SetWriteTimeout(m_Config.m_IoTimeout);
// get the streams
client->GetInputStream(input);
client->GetOutputStream(output);
// we don't need the socket anymore
delete client;
return NPT_SUCCESS;
}
/*----------------------------------------------------------------------
| NPT_HttpServer::Loop
+---------------------------------------------------------------------*/
NPT_Result
NPT_HttpServer::Loop(bool cancellable_sockets)
{
NPT_InputStreamReference input;
NPT_OutputStreamReference output;
NPT_HttpRequestContext context;
NPT_Result result;
do {
// wait for a client to connect
NPT_Flags flags = cancellable_sockets?NPT_SOCKET_FLAG_CANCELLABLE:0;
result = WaitForNewClient(input, output, &context, flags);
NPT_LOG_FINE_2("WaitForNewClient returned %d (%s)",
result,
NPT_ResultText(result));
if (!m_Run) break;
if (result == NPT_ERROR_TIMEOUT) continue;
// respond to the client
if (NPT_SUCCEEDED(result)) {
// send a response
result = RespondToClient(input, output, context);
NPT_LOG_FINE_2("ResponToClient returned %d (%s)",
result,
NPT_ResultText(result));
} else {
NPT_LOG_FINE_2("WaitForNewClient returned %d (%s)",
result,
NPT_ResultText(result));
// if there was an error, wait a short time to avoid spinning
if (result != NPT_ERROR_TERMINATED) {
NPT_LOG_FINE("sleeping before restarting the loop");
NPT_System::Sleep(1.0);
}
}
// release the stream references so that the socket can be closed
input = NULL;
output = NULL;
} while (m_Run && result != NPT_ERROR_TERMINATED);
return result;
}
/*----------------------------------------------------------------------
| NPT_HttpServer::HandlerConfig::HandlerConfig
+---------------------------------------------------------------------*/
NPT_HttpServer::HandlerConfig::HandlerConfig(NPT_HttpRequestHandler* handler,
const char* path,
bool include_children,
bool transfer_ownership) :
m_Handler(handler),
m_Path(path),
m_IncludeChildren(include_children),
m_HandlerIsOwned(transfer_ownership)
{
}
/*----------------------------------------------------------------------
| NPT_HttpServer::HandlerConfig::~HandlerConfig
+---------------------------------------------------------------------*/
NPT_HttpServer::HandlerConfig::~HandlerConfig()
{
if (m_HandlerIsOwned) delete m_Handler;
}
/*----------------------------------------------------------------------
| NPT_HttpServer::AddRequestHandler
+---------------------------------------------------------------------*/
NPT_Result
NPT_HttpServer::AddRequestHandler(NPT_HttpRequestHandler* handler,
const char* path,
bool include_children,
bool transfer_ownership)
{
return m_RequestHandlers.Add(new HandlerConfig(handler, path, include_children, transfer_ownership));
}
/*----------------------------------------------------------------------
| NPT_HttpServer::FindRequestHandler
+---------------------------------------------------------------------*/
NPT_HttpRequestHandler*
NPT_HttpServer::FindRequestHandler(NPT_HttpRequest& request)
{
NPT_String path = NPT_Uri::PercentDecode(request.GetUrl().GetPath());
for (NPT_List<HandlerConfig*>::Iterator it = m_RequestHandlers.GetFirstItem();
it;
++it) {
HandlerConfig* config = *it;
if (config->m_IncludeChildren) {
if (path.StartsWith(config->m_Path)) {
return config->m_Handler;
}
} else {
if (path == config->m_Path) {
return config->m_Handler;
}
}
}
// not found
return NULL;
}
/*----------------------------------------------------------------------
| NPT_HttpServer::FindRequestHandlers
+---------------------------------------------------------------------*/
NPT_List<NPT_HttpRequestHandler*>
NPT_HttpServer::FindRequestHandlers(NPT_HttpRequest& request)
{
NPT_List<NPT_HttpRequestHandler*> handlers;
for (NPT_List<HandlerConfig*>::Iterator it = m_RequestHandlers.GetFirstItem();
it;
++it) {
HandlerConfig* config = *it;
if (config->m_IncludeChildren) {
if (request.GetUrl().GetPath(true).StartsWith(config->m_Path)) {
handlers.Add(config->m_Handler);
}
} else {
if (request.GetUrl().GetPath(true) == config->m_Path) {
handlers.Insert(handlers.GetFirstItem(), config->m_Handler);
}
}
}
return handlers;
}
/*----------------------------------------------------------------------
| NPT_HttpServer::RespondToClient
+---------------------------------------------------------------------*/
NPT_Result
NPT_HttpServer::RespondToClient(NPT_InputStreamReference& input,
NPT_OutputStreamReference& output,
const NPT_HttpRequestContext& context)
{
NPT_HttpRequest* request;
NPT_HttpResponse* response = NULL;
NPT_Result result = NPT_ERROR_NO_SUCH_ITEM;
bool terminate_server = false;
NPT_HttpResponder responder(input, output);
NPT_CHECK_WARNING(responder.ParseRequest(request, &context.GetLocalAddress()));
NPT_LOG_FINE_1("request, path=%s", request->GetUrl().ToRequestString(true).GetChars());
// prepare the response body
NPT_HttpEntity* body = new NPT_HttpEntity();
NPT_HttpRequestHandler* handler = FindRequestHandler(*request);
if (handler) {
// create a response object
response = new NPT_HttpResponse(200, "OK", NPT_HTTP_PROTOCOL_1_0);
response->SetEntity(body);
// ask the handler to setup the response
result = handler->SetupResponse(*request, context, *response);
}
if (result == NPT_ERROR_NO_SUCH_ITEM || handler == NULL) {
body->SetInputStream(NPT_HTTP_DEFAULT_404_HTML);
body->SetContentType("text/html");
if (response == NULL) {
response = new NPT_HttpResponse(404, "Not Found", NPT_HTTP_PROTOCOL_1_0);
} else {
response->SetStatus(404, "Not Found");
}
response->SetEntity(body);
if (handler) {
handler->Completed(NPT_ERROR_NO_SUCH_ITEM);
handler = NULL;
}
} else if (result == NPT_ERROR_PERMISSION_DENIED) {
body->SetInputStream(NPT_HTTP_DEFAULT_403_HTML);
body->SetContentType("text/html");
response->SetStatus(403, "Forbidden");
handler->Completed(NPT_ERROR_PERMISSION_DENIED);
handler = NULL;
} else if (result == NPT_ERROR_TERMINATED) {
// mark that we want to exit
terminate_server = true;
} else if (NPT_FAILED(result)) {
body->SetInputStream(NPT_HTTP_DEFAULT_500_HTML);
body->SetContentType("text/html");
response->SetStatus(500, "Internal Error");
handler->Completed(result);
handler = NULL;
}
// augment the headers with server information
if (m_ServerHeader.GetLength()) {
response->GetHeaders().SetHeader(NPT_HTTP_HEADER_SERVER, m_ServerHeader, false);
}
// send the response headers
result = responder.SendResponseHeaders(*response);
if (NPT_FAILED(result)) {
NPT_LOG_WARNING_2("SendResponseHeaders failed (%d:%s)", result, NPT_ResultText(result));
goto end;
}
// send the body
if (request->GetMethod() != NPT_HTTP_METHOD_HEAD) {
if (handler) {
result = handler->SendResponseBody(context, *response, *output);
} else {
// send body manually in case there was an error with the handler or no handler was found
NPT_InputStreamReference body_stream;
body->GetInputStream(body_stream);
if (!body_stream.IsNull()) {
result = NPT_StreamToStreamCopy(*body_stream, *output, 0, body->GetContentLength());
if (NPT_FAILED(result)) {
NPT_LOG_INFO_2("NPT_StreamToStreamCopy returned %d (%s)", result, NPT_ResultText(result));
goto end;
}
}
}
}
// flush
output->Flush();
// if we need to die, we return an error code
if (NPT_SUCCEEDED(result) && terminate_server) result = NPT_ERROR_TERMINATED;
end:
// cleanup
delete response;
delete request;
if (handler) {
handler->Completed(result);
}
return result;
}
/*----------------------------------------------------------------------
| NPT_HttpResponder::NPT_HttpResponder
+---------------------------------------------------------------------*/
NPT_HttpResponder::NPT_HttpResponder(NPT_InputStreamReference& input,
NPT_OutputStreamReference& output) :
m_Input(new NPT_BufferedInputStream(input)),
m_Output(output)
{
m_Config.m_IoTimeout = NPT_HTTP_SERVER_DEFAULT_IO_TIMEOUT;
}
/*----------------------------------------------------------------------
| NPT_HttpResponder::~NPT_HttpResponder
+---------------------------------------------------------------------*/
NPT_HttpResponder::~NPT_HttpResponder()
{
}
/*----------------------------------------------------------------------
| NPT_HttpServer::Terminate
+---------------------------------------------------------------------*/
void NPT_HttpServer::Terminate()
{
m_Run = false;
}
/*----------------------------------------------------------------------
| NPT_HttpResponder::SetConfig
+---------------------------------------------------------------------*/
NPT_Result
NPT_HttpResponder::SetConfig(const Config& config)
{
m_Config = config;
return NPT_SUCCESS;
}
/*----------------------------------------------------------------------
| NPT_HttpResponder::SetTimeout
+---------------------------------------------------------------------*/
NPT_Result
NPT_HttpResponder::SetTimeout(NPT_Timeout io_timeout)
{
m_Config.m_IoTimeout = io_timeout;
return NPT_SUCCESS;
}
/*----------------------------------------------------------------------
| NPT_HttpResponder::ParseRequest
+---------------------------------------------------------------------*/
NPT_Result
NPT_HttpResponder::ParseRequest(NPT_HttpRequest*& request,
const NPT_SocketAddress* local_address)
{
// rebuffer the stream in case we're using a keep-alive connection
m_Input->SetBufferSize(NPT_BUFFERED_BYTE_STREAM_DEFAULT_SIZE);
// parse the request
NPT_CHECK_FINE(NPT_HttpRequest::Parse(*m_Input, local_address, request));
// unbuffer the stream
m_Input->SetBufferSize(0);
// don't create an entity if no body is expected
if (request->GetMethod() == NPT_HTTP_METHOD_GET ||
request->GetMethod() == NPT_HTTP_METHOD_HEAD ||
request->GetMethod() == NPT_HTTP_METHOD_TRACE) {
return NPT_SUCCESS;
}
// set the entity info
NPT_HttpEntity* entity = new NPT_HttpEntity(request->GetHeaders());
if (entity->GetTransferEncoding() == NPT_HTTP_TRANSFER_ENCODING_CHUNKED) {
entity->SetInputStream(NPT_InputStreamReference(new NPT_HttpChunkedInputStream(m_Input)));
} else {
entity->SetInputStream(m_Input);
}
request->SetEntity(entity);
return NPT_SUCCESS;
}
/*----------------------------------------------------------------------
| NPT_HttpResponder::SendResponseHeaders
+---------------------------------------------------------------------*/
NPT_Result
NPT_HttpResponder::SendResponseHeaders(NPT_HttpResponse& response)
{
// add default headers
NPT_HttpHeaders& headers = response.GetHeaders();
if (response.GetProtocol() == NPT_HTTP_PROTOCOL_1_0) {
headers.SetHeader(NPT_HTTP_HEADER_CONNECTION,
"close", false); // set but don't replace
}
// add computed headers
NPT_HttpEntity* entity = response.GetEntity();
if (entity) {
// content type
const NPT_String& content_type = entity->GetContentType();
if (!content_type.IsEmpty()) {
headers.SetHeader(NPT_HTTP_HEADER_CONTENT_TYPE, content_type);
}
// content encoding
const 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);
}
// set the content length if known
if (entity->ContentLengthIsKnown()) {
headers.SetHeader(NPT_HTTP_HEADER_CONTENT_LENGTH,
NPT_String::FromInteger(entity->GetContentLength()));
} else if (transfer_encoding.IsEmpty() || transfer_encoding.Compare(NPT_HTTP_TRANSFER_ENCODING_CHUNKED, true)) {
// no content length, the only way client will know we're done
// is when we'll close the connection unless it's chunked encoding
headers.SetHeader(NPT_HTTP_HEADER_CONNECTION,
"close", true); // set and replace
}
} else {
// 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");
}
// create a memory stream to buffer the response line and headers
NPT_MemoryStream buffer;
// emit the response line
NPT_CHECK_WARNING(response.Emit(buffer));
// send the buffer
NPT_CHECK_WARNING(m_Output->WriteFully(buffer.GetData(), buffer.GetDataSize()));
return NPT_SUCCESS;
}
/*----------------------------------------------------------------------
| NPT_HttpRequestHandler Dynamic Cast Anchor
+---------------------------------------------------------------------*/
NPT_DEFINE_DYNAMIC_CAST_ANCHOR(NPT_HttpRequestHandler)
/*----------------------------------------------------------------------
| NPT_HttpRequestHandler::SendResponseBody
+---------------------------------------------------------------------*/
NPT_Result
NPT_HttpRequestHandler::SendResponseBody(const NPT_HttpRequestContext& /*context*/,
NPT_HttpResponse& response,
NPT_OutputStream& output)
{
NPT_HttpEntity* entity = response.GetEntity();
if (entity == NULL) 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;
if (entity->GetTransferEncoding() == NPT_HTTP_TRANSFER_ENCODING_CHUNKED) {
dest = new NPT_HttpChunkedOutputStream(output);
}
// send the 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);
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) delete dest;
return result;
}
/*----------------------------------------------------------------------
| NPT_HttpStaticRequestHandler::NPT_HttpStaticRequestHandler
+---------------------------------------------------------------------*/
NPT_HttpStaticRequestHandler::NPT_HttpStaticRequestHandler(const void* data,
NPT_Size size,
const char* mime_type,
bool copy) :
m_MimeType(mime_type),
m_Buffer(data, size, copy)
{}
/*----------------------------------------------------------------------
| NPT_HttpStaticRequestHandler::NPT_HttpStaticRequestHandler
+---------------------------------------------------------------------*/
NPT_HttpStaticRequestHandler::NPT_HttpStaticRequestHandler(const char* document,
const char* mime_type,
bool copy) :
m_MimeType(mime_type),
m_Buffer(document, NPT_StringLength(document), copy)
{}
/*----------------------------------------------------------------------
| NPT_HttpStaticRequestHandler::SetupResponse
+---------------------------------------------------------------------*/
NPT_Result
NPT_HttpStaticRequestHandler::SetupResponse(NPT_HttpRequest& /*request*/,
const NPT_HttpRequestContext& /*context*/,
NPT_HttpResponse& response)
{
NPT_HttpEntity* entity = response.GetEntity();
if (entity == NULL) return NPT_ERROR_INVALID_STATE;
entity->SetContentType(m_MimeType);
entity->SetInputStream(m_Buffer.GetData(), m_Buffer.GetDataSize());
return NPT_SUCCESS;
}
const NPT_HttpFileRequestHandler_DefaultFileTypeMapEntry
NPT_HttpFileRequestHandler_DefaultFileTypeMap[] = {
{"xml", "text/xml; charset=\"utf-8\"" },
{"htm", "text/html" },
{"html", "text/html" },
{"c", "text/plain"},
{"h", "text/plain"},
{"txt", "text/plain"},
{"css", "text/css" },
{"manifest", "text/cache-manifest"},
{"gif", "image/gif" },
{"thm", "image/jpeg"},
{"png", "image/png"},
{"tif", "image/tiff"},
{"tiff", "image/tiff"},
{"jpg", "image/jpeg"},
{"jpeg", "image/jpeg"},
{"jpe", "image/jpeg"},
{"jp2", "image/jp2" },
{"png", "image/png" },
{"bmp", "image/bmp" },
{"aif", "audio/x-aiff"},
{"aifc", "audio/x-aiff"},
{"aiff", "audio/x-aiff"},
{"flac", "audio/x-flac"},
{"mka", "audio/x-matroska"},
{"mpa", "audio/mpeg"},
{"mp2", "audio/mpeg"},
{"mp3", "audio/mpeg"},
{"m4a", "audio/mp4"},
{"wma", "audio/x-ms-wma"},
{"wav", "audio/x-wav"},
{"mkv", "video/x-matroska"},
{"mpeg", "video/mpeg"},
{"mpg", "video/mpeg"},
{"mp4", "video/mp4"},
{"m4v", "video/mp4"},
{"ts", "video/MP2T"}, // RFC 3555
{"mpegts", "video/MP2T"},
{"mov", "video/quicktime"},
{"qt", "video/quicktime"},
{"wmv", "video/x-ms-wmv"},
{"wtv", "video/x-ms-wmv"},
{"asf", "video/x-ms-asf"},
{"mkv", "video/x-matroska"},
{"mk3d", "video/x-matroska-3d"},
{"flv", "video/x-flv"},
{"avi", "video/x-msvideo"},
{"divx", "video/x-msvideo"},
{"xvid", "video/x-msvideo"},
{"doc", "application/msword"},
{"js", "application/javascript"},
{"m3u8", "application/x-mpegURL"},
{"pdf", "application/pdf"},
{"ps", "application/postscript"},
{"eps", "application/postscript"},
{"zip", "application/zip"}
};
/*----------------------------------------------------------------------
| NPT_HttpFileRequestHandler::NPT_HttpFileRequestHandler
+---------------------------------------------------------------------*/
NPT_HttpFileRequestHandler::NPT_HttpFileRequestHandler(const char* url_root,
const char* file_root,
bool auto_dir,
const char* auto_index) :
m_UrlRoot(url_root),
m_FileRoot(file_root),
m_DefaultMimeType("text/html"),
m_UseDefaultFileTypeMap(true),
m_AutoDir(auto_dir),
m_AutoIndex(auto_index)
{
}
/*----------------------------------------------------------------------
| helper functions FIXME: need to move these to a separate module
+---------------------------------------------------------------------*/
static NPT_UInt32
_utf8_decode(const char** str)
{
NPT_UInt32 result;
NPT_UInt32 min_value;
unsigned int bytes_left;
if (**str == 0) {
return ~0;
} else if ((**str & 0x80) == 0x00) {
result = *(*str)++;
bytes_left = 0;
min_value = 0;
} else if ((**str & 0xE0) == 0xC0) {
result = *(*str)++ & 0x1F;
bytes_left = 1;
min_value = 0x80;
} else if ((**str & 0xF0) == 0xE0) {
result = *(*str)++ & 0x0F;
bytes_left = 2;
min_value = 0x800;
} else if ((**str & 0xF8) == 0xF0) {
result = *(*str)++ & 0x07;
bytes_left = 3;
min_value = 0x10000;
} else {
return ~0;
}
while (bytes_left--) {
if (**str == 0 || (**str & 0xC0) != 0x80) return ~0;
result = (result << 6) | (*(*str)++ & 0x3F);
}
if (result < min_value || (result & 0xFFFFF800) == 0xD800 || result > 0x10FFFF) {
return ~0;
}
return result;
}
/*----------------------------------------------------------------------
| NPT_HtmlEncode
+---------------------------------------------------------------------*/
static NPT_String
NPT_HtmlEncode(const char* str, const char* chars)
{
NPT_String encoded;
// check args
if (str == NULL) return encoded;
// reserve at least the size of the current uri
encoded.Reserve(NPT_StringLength(str));
// process each character
while (*str) {
NPT_UInt32 c = _utf8_decode(&str);
bool encode = false;
if (c < ' ' || c > '~') {
encode = true;
} else {
const char* match = chars;
while (*match) {
if (c == (NPT_UInt32)*match) {
encode = true;
break;
}
++match;
}
}
if (encode) {
// encode
char hex[9];
encoded += "&#x";
unsigned int len = 0;
if (c > 0xFFFF) {
NPT_ByteToHex((unsigned char)(c>>24), &hex[0], true);
NPT_ByteToHex((unsigned char)(c>>16), &hex[2], true);
len = 4;
}
NPT_ByteToHex((unsigned char)(c>>8), &hex[len ], true);
NPT_ByteToHex((unsigned char)(c ), &hex[len+2], true);
hex[len+4] = ';';
encoded.Append(hex, len+5);
} else {
// no encoding required
encoded += (char)c;
}
}
return encoded;
}
/*----------------------------------------------------------------------
| NPT_HttpFileRequestHandler::SetupResponse
+---------------------------------------------------------------------*/
NPT_Result
NPT_HttpFileRequestHandler::SetupResponse(NPT_HttpRequest& request,
const NPT_HttpRequestContext& /* context */,
NPT_HttpResponse& response)
{
NPT_HttpEntity* entity = response.GetEntity();
if (entity == NULL) return NPT_ERROR_INVALID_STATE;
// check the method
if (request.GetMethod() != NPT_HTTP_METHOD_GET &&
request.GetMethod() != NPT_HTTP_METHOD_HEAD) {
response.SetStatus(405, "Method Not Allowed");
return NPT_SUCCESS;
}
// set some default headers
response.GetHeaders().SetHeader(NPT_HTTP_HEADER_ACCEPT_RANGES, "bytes");
// declare HTTP/1.1 if the client asked for it
if (request.GetProtocol() == NPT_HTTP_PROTOCOL_1_1) {
response.SetProtocol(NPT_HTTP_PROTOCOL_1_1);
}
// TODO: we need to normalize the request path
// check that the request's path is an entry under the url root
if (!request.GetUrl().GetPath(true).StartsWith(m_UrlRoot)) {
return NPT_ERROR_INVALID_PARAMETERS;
}
// compute the filename
NPT_String filename = m_FileRoot;
NPT_String relative_path = NPT_Url::PercentDecode(request.GetUrl().GetPath().GetChars()+m_UrlRoot.GetLength());
filename += "/";
filename += relative_path;
NPT_LOG_FINE_1("filename = %s", filename.GetChars());
// get info about the file
NPT_FileInfo info;
NPT_File::GetInfo(filename, &info);
// check if this is a directory
if (info.m_Type == NPT_FileInfo::FILE_TYPE_DIRECTORY) {
NPT_LOG_FINE("file is a DIRECTORY");
if (m_AutoDir) {
if (m_AutoIndex.GetLength()) {
NPT_LOG_FINE("redirecting to auto-index");
filename += NPT_FilePath::Separator;
filename += m_AutoIndex;
if (NPT_File::Exists(filename)) {
NPT_String location = m_UrlRoot+"/"+m_AutoIndex;
response.SetStatus(302, "Found");
response.GetHeaders().SetHeader(NPT_HTTP_HEADER_LOCATION, location);
} else {
return NPT_ERROR_PERMISSION_DENIED;
}
} else {
NPT_LOG_FINE("doing auto-dir");
// get the dir entries
NPT_List<NPT_String> entries;
NPT_File::ListDir(filename, entries);
NPT_String html;
html.Reserve(1024+128*entries.GetItemCount());
NPT_String html_dirname = NPT_HtmlEncode(relative_path, "<>&");
html += "<hmtl><head><title>Directory Listing for /";
html += html_dirname;
html += "</title></head><body>";
html += "<h2>Directory Listing for /";
html += html_dirname;
html += "</h2><hr><ul>\r\n";
NPT_String url_base_path = NPT_HtmlEncode(request.GetUrl().GetPath(), "<>&\"");
for (NPT_List<NPT_String>::Iterator i = entries.GetFirstItem();
i;
++i) {
NPT_String url_filename = NPT_HtmlEncode(*i, "<>&");
html += "<li><a href=\"";
html += url_base_path;
if (!url_base_path.EndsWith("/")) html += "/";
html += url_filename;
html += "\">";
html +=url_filename;
NPT_String full_path = filename;
full_path += "/";
full_path += *i;
NPT_File::GetInfo(full_path, &info);
if (info.m_Type == NPT_FileInfo::FILE_TYPE_DIRECTORY) html += "/";
html += "</a><br>\r\n";
}
html += "</ul></body></html>";
entity->SetContentType("text/html");
entity->SetInputStream(html);
return NPT_SUCCESS;
}
} else {
return NPT_ERROR_PERMISSION_DENIED;
}
}
// open the file
NPT_File file(filename);
NPT_Result result = file.Open(NPT_FILE_OPEN_MODE_READ);
if (NPT_FAILED(result)) {
NPT_LOG_FINE("file not found");
return NPT_ERROR_NO_SUCH_ITEM;
}
NPT_InputStreamReference stream;
file.GetInputStream(stream);
// check for range requests
const NPT_String* range_spec = request.GetHeaders().GetHeaderValue(NPT_HTTP_HEADER_RANGE);
// setup entity body
NPT_CHECK(SetupResponseBody(response, stream, range_spec));
// set the response body
entity->SetContentType(GetContentType(filename));
return NPT_SUCCESS;
}
/*----------------------------------------------------------------------
| NPT_HttpFileRequestHandler::SetupResponseBody
+---------------------------------------------------------------------*/
NPT_Result
NPT_HttpFileRequestHandler::SetupResponseBody(NPT_HttpResponse& response,
NPT_InputStreamReference& stream,
const NPT_String* range_spec /* = NULL */)
{
NPT_HttpEntity* entity = response.GetEntity();
if (entity == NULL) return NPT_ERROR_INVALID_STATE;
if (range_spec) {
const NPT_String* accept_range = response.GetHeaders().GetHeaderValue(NPT_HTTP_HEADER_ACCEPT_RANGES);
if (response.GetEntity()->GetTransferEncoding() == NPT_HTTP_TRANSFER_ENCODING_CHUNKED ||
(accept_range && accept_range->Compare("bytes"))) {
NPT_LOG_FINE("range request not supported");
response.SetStatus(416, "Requested Range Not Satisfiable");
return NPT_SUCCESS;
}
// measure the stream size
bool has_stream_size = false;
NPT_LargeSize stream_size = 0;
NPT_Result result = stream->GetSize(stream_size);
if (NPT_SUCCEEDED(result)) {
has_stream_size = true;
NPT_LOG_FINE_1("body size=%lld", stream_size);
if (stream_size == 0) return NPT_SUCCESS;
}
if (!range_spec->StartsWith("bytes=")) {
NPT_LOG_FINE("unknown range spec");
response.SetStatus(400, "Bad Request");
return NPT_SUCCESS;
}
NPT_String valid_range;
NPT_String range(range_spec->GetChars()+6);
if (range.Find(',') >= 0) {
NPT_LOG_FINE("multi-range requests not supported");
if (has_stream_size) {
valid_range = "bytes */";
valid_range += NPT_String::FromInteger(stream_size);
response.GetHeaders().SetHeader(NPT_HTTP_HEADER_CONTENT_RANGE, valid_range.GetChars());
}
response.SetStatus(416, "Requested Range Not Satisfiable");
return NPT_SUCCESS;
}
int sep = range.Find('-');
NPT_UInt64 range_start = 0;
NPT_UInt64 range_end = 0;
bool has_start = false;
bool has_end = false;
bool satisfied = false;
if (sep < 0) {
NPT_LOG_FINE("invalid syntax");
response.SetStatus(400, "Bad Request");
return NPT_SUCCESS;
} else {
if ((unsigned int)sep+1 < range.GetLength()) {
result = NPT_ParseInteger64(range.GetChars()+sep+1, range_end);
if (NPT_FAILED(result)) {
NPT_LOG_FINE("failed to parse range end");
return result;
}
range.SetLength(sep);
has_end = true;
}
if (sep > 0) {
result = range.ToInteger64(range_start);
if (NPT_FAILED(result)) {
NPT_LOG_FINE("failed to parse range start");
return result;
}
has_start = true;
}
if (!has_stream_size) {
if (has_start && range_start == 0 && !has_end) {
bool update_content_length = (entity->GetTransferEncoding() != NPT_HTTP_TRANSFER_ENCODING_CHUNKED);
// use the whole file stream as a body
return entity->SetInputStream(stream, update_content_length);
} else {
NPT_LOG_WARNING_2("file.GetSize() failed (%d:%s)", result, NPT_ResultText(result));
NPT_LOG_FINE("range request not supported");
response.SetStatus(416, "Requested Range Not Satisfiable");
return NPT_SUCCESS;
}
}
if (has_start) {
// some clients sends incorrect range_end equal to size
// we try to handle it
if (!has_end || range_end == stream_size) range_end = stream_size-1;
} else {
if (has_end) {
if (range_end <= stream_size) {
range_start = stream_size-range_end;
range_end = stream_size-1;
}
}
}
NPT_LOG_FINE_2("final range: start=%lld, end=%lld", range_start, range_end);
if (range_start > range_end) {
NPT_LOG_FINE("invalid range");
response.SetStatus(400, "Bad Request");
satisfied = false;
} else if (range_end >= stream_size) {
response.SetStatus(416, "Requested Range Not Satisfiable");
NPT_LOG_FINE("out of range");
satisfied = false;
} else {
satisfied = true;
}
}
if (satisfied && range_start != 0) {
// seek in the stream
result = stream->Seek(range_start);
if (NPT_FAILED(result)) {
NPT_LOG_WARNING_2("stream.Seek() failed (%d:%s)", result, NPT_ResultText(result));
satisfied = false;
}
}
if (!satisfied) {
if (!valid_range.IsEmpty()) response.GetHeaders().SetHeader(NPT_HTTP_HEADER_CONTENT_RANGE, valid_range.GetChars());
response.SetStatus(416, "Requested Range Not Satisfiable");
return NPT_SUCCESS;
}
// use a portion of the file stream as a body
entity->SetInputStream(stream, false);
entity->SetContentLength(range_end-range_start+1);
response.SetStatus(206, "Partial Content");
valid_range = "bytes ";
valid_range += NPT_String::FromInteger(range_start);
valid_range += "-";
valid_range += NPT_String::FromInteger(range_end);
valid_range += "/";
valid_range += NPT_String::FromInteger(stream_size);
response.GetHeaders().SetHeader(NPT_HTTP_HEADER_CONTENT_RANGE, valid_range.GetChars());
} else {
bool update_content_length = (entity->GetTransferEncoding() != NPT_HTTP_TRANSFER_ENCODING_CHUNKED);
// use the whole file stream as a body
entity->SetInputStream(stream, update_content_length);
}
return NPT_SUCCESS;
}
/*----------------------------------------------------------------------
| NPT_HttpFileRequestHandler::GetContentType
+---------------------------------------------------------------------*/
const char*
NPT_HttpFileRequestHandler::GetDefaultContentType(const char* extension)
{
for (unsigned int i=0; i<NPT_ARRAY_SIZE(NPT_HttpFileRequestHandler_DefaultFileTypeMap); i++) {
if (NPT_String::Compare(extension, NPT_HttpFileRequestHandler_DefaultFileTypeMap[i].extension, true) == 0) {
const char* type = NPT_HttpFileRequestHandler_DefaultFileTypeMap[i].mime_type;
NPT_LOG_FINE_1("using type from default list: %s", type);
return type;
}
}
return NULL;
}
/*----------------------------------------------------------------------
| NPT_HttpFileRequestHandler::GetContentType
+---------------------------------------------------------------------*/
const char*
NPT_HttpFileRequestHandler::GetContentType(const NPT_String& filename)
{
int last_dot = filename.ReverseFind('.');
if (last_dot > 0) {
NPT_String extension = filename.GetChars()+last_dot+1;
extension.MakeLowercase();
NPT_LOG_FINE_1("extension=%s", extension.GetChars());
NPT_String* mime_type;
if (NPT_SUCCEEDED(m_FileTypeMap.Get(extension, mime_type))) {
NPT_LOG_FINE_1("found mime type in map: %s", mime_type->GetChars());
return mime_type->GetChars();
}
// not found, look in the default map if necessary
if (m_UseDefaultFileTypeMap) {
const char* type = NPT_HttpFileRequestHandler::GetDefaultContentType(extension);
if (type) return type;
}
}
NPT_LOG_FINE("using default mime type");
return m_DefaultMimeType;
}
/*----------------------------------------------------------------------
| NPT_HttpChunkedInputStream::NPT_HttpChunkedInputStream
+---------------------------------------------------------------------*/
NPT_HttpChunkedInputStream::NPT_HttpChunkedInputStream(
NPT_BufferedInputStreamReference& stream) :
m_Source(stream),
m_CurrentChunkSize(0),
m_Eos(false)
{
}
/*----------------------------------------------------------------------
| NPT_HttpChunkedInputStream::~NPT_HttpChunkedInputStream
+---------------------------------------------------------------------*/
NPT_HttpChunkedInputStream::~NPT_HttpChunkedInputStream()
{
}
/*----------------------------------------------------------------------
| NPT_HttpChunkedInputStream::NPT_HttpChunkedInputStream
+---------------------------------------------------------------------*/
NPT_Result
NPT_HttpChunkedInputStream::Read(void* buffer,
NPT_Size bytes_to_read,
NPT_Size* bytes_read /* = NULL */)
{
// set the initial state of return values
if (bytes_read) *bytes_read = 0;
// check for end of stream
if (m_Eos) return NPT_ERROR_EOS;
// shortcut
if (bytes_to_read == 0) return NPT_SUCCESS;
// read next chunk size if needed
if (m_CurrentChunkSize == 0) {
// buffered mode
m_Source->SetBufferSize(4096);
NPT_String size_line;
NPT_CHECK_FINE(m_Source->ReadLine(size_line));
// decode size (in hex)
m_CurrentChunkSize = 0;
if (size_line.GetLength() < 1) {
NPT_LOG_WARNING("empty chunk size line");
return NPT_ERROR_INVALID_FORMAT;
}
const char* size_hex = size_line.GetChars();
while (*size_hex != '\0' &&
*size_hex != ' ' &&
*size_hex != ';' &&
*size_hex != '\r' &&
*size_hex != '\n') {
int nibble = NPT_HexToNibble(*size_hex);
if (nibble < 0) {
NPT_LOG_WARNING_1("invalid chunk size format (%s)", size_line.GetChars());
return NPT_ERROR_INVALID_FORMAT;
}
m_CurrentChunkSize = (m_CurrentChunkSize<<4)|nibble;
++size_hex;
}
NPT_LOG_FINEST_1("start of chunk, size=%d", m_CurrentChunkSize);
// 0 = end of body
if (m_CurrentChunkSize == 0) {
NPT_LOG_FINEST("end of chunked stream, reading trailers");
// read footers until empty line
NPT_String footer;
do {
NPT_CHECK_FINE(m_Source->ReadLine(footer));
} while (!footer.IsEmpty());
m_Eos = true;
NPT_LOG_FINEST("end of chunked stream, done");
return NPT_ERROR_EOS;
}
// unbuffer source
m_Source->SetBufferSize(0);
}
// read no more than what's left in chunk
NPT_Size chunk_bytes_read;
if (bytes_to_read > m_CurrentChunkSize) bytes_to_read = m_CurrentChunkSize;
NPT_CHECK_FINE(m_Source->Read(buffer, bytes_to_read, &chunk_bytes_read));
// ready to go to next chunk?
m_CurrentChunkSize -= chunk_bytes_read;
if (m_CurrentChunkSize == 0) {
NPT_LOG_FINEST("reading end of chunk");
// when a chunk is finished, a \r\n follows
char newline[2];
NPT_CHECK_FINE(m_Source->ReadFully(newline, 2));
if (newline[0] != '\r' || newline[1] != '\n') {
NPT_LOG_WARNING("invalid end of chunk (expected \\r\\n)");
return NPT_ERROR_INVALID_FORMAT;
}
}
// update output params
if (bytes_read) *bytes_read = chunk_bytes_read;
return NPT_SUCCESS;
}
/*----------------------------------------------------------------------
| NPT_HttpChunkedInputStream::Seek
+---------------------------------------------------------------------*/
NPT_Result
NPT_HttpChunkedInputStream::Seek(NPT_Position /*offset*/)
{
return NPT_ERROR_NOT_SUPPORTED;
}
/*----------------------------------------------------------------------
| NPT_HttpChunkedInputStream::Tell
+---------------------------------------------------------------------*/
NPT_Result
NPT_HttpChunkedInputStream::Tell(NPT_Position& offset)
{
offset = 0;
return NPT_ERROR_NOT_SUPPORTED;
}
/*----------------------------------------------------------------------
| NPT_HttpChunkedInputStream::GetSize
+---------------------------------------------------------------------*/
NPT_Result
NPT_HttpChunkedInputStream::GetSize(NPT_LargeSize& size)
{
return m_Source->GetSize(size);
}
/*----------------------------------------------------------------------
| NPT_HttpChunkedInputStream::GetAvailable
+---------------------------------------------------------------------*/
NPT_Result
NPT_HttpChunkedInputStream::GetAvailable(NPT_LargeSize& available)
{
return m_Source->GetAvailable(available);
}
/*----------------------------------------------------------------------
| NPT_HttpChunkedOutputStream::NPT_HttpChunkedOutputStream
+---------------------------------------------------------------------*/
NPT_HttpChunkedOutputStream::NPT_HttpChunkedOutputStream(NPT_OutputStream& stream) :
m_Stream(stream)
{
}
/*----------------------------------------------------------------------
| NPT_HttpChunkedOutputStream::~NPT_HttpChunkedOutputStream
+---------------------------------------------------------------------*/
NPT_HttpChunkedOutputStream::~NPT_HttpChunkedOutputStream()
{
// zero size chunk followed by CRLF (no trailer)
m_Stream.WriteFully("0" NPT_HTTP_LINE_TERMINATOR NPT_HTTP_LINE_TERMINATOR, 5);
}
/*----------------------------------------------------------------------
| NPT_HttpChunkedOutputStream::Write
+---------------------------------------------------------------------*/
NPT_Result
NPT_HttpChunkedOutputStream::Write(const void* buffer,
NPT_Size bytes_to_write,
NPT_Size* bytes_written)
{
// default values
if (bytes_written) *bytes_written = 0;
// shortcut
if (bytes_to_write == 0) return NPT_SUCCESS;
// write the chunk header
char size[16];
size[15] = '\n';
size[14] = '\r';
char* c = &size[14];
unsigned int char_count = 2;
unsigned int value = bytes_to_write;
do {
unsigned int digit = (unsigned int)(value%16);
if (digit < 10) {
*--c = '0'+digit;
} else {
*--c = 'A'+digit-10;
}
char_count++;
value /= 16;
} while(value);
NPT_Result result = m_Stream.WriteFully(c, char_count);
if (NPT_FAILED(result)) return result;
// write the chunk data
result = m_Stream.WriteFully(buffer, bytes_to_write);
if (NPT_FAILED(result)) return result;
// finish the chunk
result = m_Stream.WriteFully(NPT_HTTP_LINE_TERMINATOR, 2);
if (NPT_SUCCEEDED(result) && bytes_written) {
*bytes_written = bytes_to_write;
}
return result;
}
|
