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socket-inl.hpp
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socket-inl.hpp
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namespace boost {
namespace http {
namespace detail {
template <class Headers>
bool has_connection_close(const Headers &headers)
{
typedef basic_string_ref<typename Headers::mapped_type::value_type>
string_ref_type;
auto range = headers.equal_range("connection");
for (; range.first != range.second ; ++range.first) {
if (header_value_any_of((*range.first).second,
[](const string_ref_type &v) {
return iequals(v, "close");
})) {
return true;
}
}
return false;
}
} // namespace detail
template<class Socket>
bool basic_socket<Socket>::is_open() const
{
return channel.is_open() && is_open_;
}
template<class Socket>
read_state basic_socket<Socket>::read_state() const
{
return istate;
}
template<class Socket>
write_state basic_socket<Socket>::write_state() const
{
return writer_helper.state;
}
template<class Socket>
bool basic_socket<Socket>::write_response_native_stream() const
{
return flags & HTTP_1_1;
}
template<class Socket>
asio::io_service &basic_socket<Socket>::get_io_service()
{
return channel.get_io_service();
}
template<class Socket>
template<class String, class Message, class CompletionToken>
typename asio::async_result<
typename asio::handler_type<CompletionToken,
void(system::error_code)>::type>::type
basic_socket<Socket>
::async_read_request(String &method, String &path, Message &message,
CompletionToken &&token)
{
static_assert(is_message<Message>::value,
"Message must fulfill the Message concept");
typedef typename asio::handler_type<
CompletionToken, void(system::error_code)>::type Handler;
Handler handler(std::forward<CompletionToken>(token));
asio::async_result<Handler> result(handler);
if (istate != http::read_state::empty) {
invoke_handler(std::forward<decltype(handler)>(handler),
http_errc::out_of_order);
return result.get();
}
method.clear();
path.clear();
writer_helper = http::write_state::finished;
schedule_on_async_read_message<READY>(handler, message, &method, &path);
return result.get();
}
template<class Socket>
template<class Message, class CompletionToken>
typename asio::async_result<
typename asio::handler_type<CompletionToken,
void(system::error_code)>::type>::type
basic_socket<Socket>::async_read_some(Message &message, CompletionToken &&token)
{
static_assert(is_message<Message>::value,
"Message must fulfill the Message concept");
typedef typename asio::handler_type<
CompletionToken, void(system::error_code)>::type Handler;
Handler handler(std::forward<CompletionToken>(token));
asio::async_result<Handler> result(handler);
if (istate != http::read_state::message_ready) {
invoke_handler(std::forward<decltype(handler)>(handler),
http_errc::out_of_order);
return result.get();
}
schedule_on_async_read_message<DATA>(handler, message);
return result.get();
}
template<class Socket>
template<class Message, class CompletionToken>
typename asio::async_result<
typename asio::handler_type<CompletionToken,
void(system::error_code)>::type>::type
basic_socket<Socket>::async_read_trailers(Message &message,
CompletionToken &&token)
{
static_assert(is_message<Message>::value,
"Message must fulfill the Message concept");
typedef typename asio::handler_type<
CompletionToken, void(system::error_code)>::type Handler;
Handler handler(std::forward<CompletionToken>(token));
asio::async_result<Handler> result(handler);
if (istate != http::read_state::body_ready) {
invoke_handler(std::forward<decltype(handler)>(handler),
http_errc::out_of_order);
return result.get();
}
schedule_on_async_read_message<END>(handler, message);
return result.get();
}
template<class Socket>
template<class StringRef, class Message, class CompletionToken>
typename asio::async_result<
typename asio::handler_type<CompletionToken,
void(system::error_code)>::type>::type
basic_socket<Socket>
::async_write_response(std::uint_fast16_t status_code,
const StringRef &reason_phrase, const Message &message,
CompletionToken &&token)
{
static_assert(is_message<Message>::value,
"Message must fulfill the Message concept");
using detail::string_literal_buffer;
typedef typename asio::handler_type<
CompletionToken, void(system::error_code)>::type Handler;
Handler handler(std::forward<CompletionToken>(token));
asio::async_result<Handler> result(handler);
if (!writer_helper.write_message()) {
invoke_handler(std::forward<decltype(handler)>(handler),
http_errc::out_of_order);
return result.get();
}
auto crlf = string_literal_buffer("\r\n");
auto sep = string_literal_buffer(": ");
bool implicit_content_length
= (message.headers().find("content-length") != message.headers().end())
|| (status_code / 100 == 1) || (status_code == 204)
|| (connect_request && (status_code / 100 == 2));
auto has_connection_close = detail::has_connection_close(message.headers());
if (has_connection_close)
flags &= ~KEEP_ALIVE;
auto use_connection_close_buf = ((flags & KEEP_ALIVE) == 0)
&& !has_connection_close;
// because we don't create multiple responses at once with HTTP/1.1
// pipelining, it's safe to use this "shared state"
content_length_buffer = std::to_string(status_code) + ' ';
std::string::size_type content_length_delim = content_length_buffer.size();
// because we don't create multiple responses at once with HTTP/1.1
// pipelining, it's safe to use this "shared state"
content_length_buffer += std::to_string(message.body().size());
const auto nbuffer_pieces =
// Start line (http version + status code + reason phrase) + CRLF
4
// Headers
// If user didn't provided "connection: close"
+ (use_connection_close_buf ? 1 : 0)
// Each header is 4 buffer pieces: key + sep + value + crlf
+ 4 * message.headers().size()
// Extra content-length header uses 3 pieces
+ (implicit_content_length ? 0 : 3)
// Extra CRLF for end of headers
+ 1
// And finally, the message body
+ (implicit_content_length ? 0 : 1);
// TODO (C++14): replace by dynarray
std::vector<asio::const_buffer> buffers(nbuffer_pieces);
buffers.push_back((flags & HTTP_1_1) ? string_literal_buffer("HTTP/1.1 ")
: string_literal_buffer("HTTP/1.0 "));
buffers.push_back(asio::buffer(content_length_buffer.data(),
content_length_delim));
buffers.push_back(asio::buffer(reason_phrase.data(), reason_phrase.size()));
buffers.push_back(crlf);
if (use_connection_close_buf)
buffers.push_back(string_literal_buffer("connection: close\r\n"));
for (const auto &header: message.headers()) {
buffers.push_back(asio::buffer(header.first));
buffers.push_back(sep);
buffers.push_back(asio::buffer(header.second));
buffers.push_back(crlf);
}
if (!implicit_content_length) {
buffers.push_back(string_literal_buffer("content-length: "));
buffers.push_back(asio::buffer(content_length_buffer.data()
+ content_length_delim,
content_length_buffer.size()
- content_length_delim));
buffers.push_back(crlf);
}
buffers.push_back(crlf);
if (!implicit_content_length)
buffers.push_back(asio::buffer(message.body()));
asio::async_write(channel, buffers,
[handler,this]
(const system::error_code &ec, std::size_t) mutable {
is_open_ = flags & KEEP_ALIVE;
if (!is_open_)
channel.close();
handler(ec);
});
return result.get();
}
template<class Socket>
template<class CompletionToken>
typename asio::async_result<
typename asio::handler_type<CompletionToken,
void(system::error_code)>::type>::type
basic_socket<Socket>
::async_write_response_continue(CompletionToken &&token)
{
typedef typename asio::handler_type<
CompletionToken, void(system::error_code)>::type Handler;
Handler handler(std::forward<CompletionToken>(token));
asio::async_result<Handler> result(handler);
if (!writer_helper.write_continue()) {
invoke_handler(std::forward<decltype(handler)>(handler),
http_errc::out_of_order);
return result.get();
}
asio::async_write(channel,
detail::string_literal_buffer("HTTP/1.1 100"
" Continue\r\n\r\n"),
[handler]
(const system::error_code &ec, std::size_t) mutable {
handler(ec);
});
return result.get();
}
template<class Socket>
template<class StringRef, class Message, class CompletionToken>
typename asio::async_result<
typename asio::handler_type<CompletionToken,
void(system::error_code)>::type>::type
basic_socket<Socket>
::async_write_response_metadata(std::uint_fast16_t status_code,
const StringRef &reason_phrase,
const Message &message, CompletionToken &&token)
{
static_assert(is_message<Message>::value,
"Message must fulfill the Message concept");
using detail::string_literal_buffer;
typedef typename asio::handler_type<
CompletionToken, void(system::error_code)>::type Handler;
Handler handler(std::forward<CompletionToken>(token));
asio::async_result<Handler> result(handler);
{
auto prev = writer_helper.state;
if (!writer_helper.write_metadata()) {
invoke_handler(std::forward<decltype(handler)>(handler),
http_errc::out_of_order);
return result.get();
}
if ((flags & HTTP_1_1) == 0) {
writer_helper = prev;
invoke_handler(std::forward<decltype(handler)>(handler),
http_errc::native_stream_unsupported);
return result.get();
}
}
auto crlf = string_literal_buffer("\r\n");
auto sep = string_literal_buffer(": ");
auto has_connection_close = detail::has_connection_close(message.headers());
if (has_connection_close)
flags &= ~KEEP_ALIVE;
auto use_connection_close_buf = ((flags & KEEP_ALIVE) == 0)
&& !has_connection_close;
// because we don't create multiple responses at once with HTTP/1.1
// pipelining, it's safe to use this "shared state"
content_length_buffer = std::to_string(status_code) + ' ';
const auto nbuffer_pieces =
// Start line (http version + status code + reason phrase) + CRLF
4
// Headers
// If user didn't provided "connection: close"
+ (use_connection_close_buf ? 1 : 0)
// Each header is 4 buffer pieces: key + sep + value + crlf
+ 4 * message.headers().size()
// Extra transfer-encoding header and extra CRLF for end of headers
+ 1;
// TODO (C++14): replace by dynarray
std::vector<asio::const_buffer> buffers(nbuffer_pieces);
buffers.push_back((flags & HTTP_1_1) ? string_literal_buffer("HTTP/1.1 ")
: string_literal_buffer("HTTP/1.0 "));
buffers.push_back(asio::buffer(content_length_buffer));
buffers.push_back(asio::buffer(reason_phrase.data(), reason_phrase.size()));
buffers.push_back(crlf);
if (use_connection_close_buf)
buffers.push_back(string_literal_buffer("connection: close\r\n"));
for (const auto &header: message.headers()) {
buffers.push_back(asio::buffer(header.first));
buffers.push_back(sep);
buffers.push_back(asio::buffer(header.second));
buffers.push_back(crlf);
}
buffers.push_back(string_literal_buffer("transfer-encoding: chunked\r\n"
"\r\n"));
asio::async_write(channel, buffers,
[handler]
(const system::error_code &ec, std::size_t) mutable {
handler(ec);
});
return result.get();
}
template<class Socket>
template<class Message, class CompletionToken>
typename asio::async_result<
typename asio::handler_type<CompletionToken,
void(system::error_code)>::type>::type
basic_socket<Socket>::async_write(const Message &message,
CompletionToken &&token)
{
static_assert(is_message<Message>::value,
"Message must fulfill the Message concept");
using detail::string_literal_buffer;
typedef typename asio::handler_type<
CompletionToken, void(system::error_code)>::type Handler;
Handler handler(std::forward<CompletionToken>(token));
asio::async_result<Handler> result(handler);
if (!writer_helper.write()) {
invoke_handler(std::forward<decltype(handler)>(handler),
http_errc::out_of_order);
return result.get();
}
if (message.body().size() == 0) {
invoke_handler(std::forward<decltype(handler)>(handler));
return result.get();
}
auto crlf = string_literal_buffer("\r\n");
{
std::ostringstream ostr;
ostr << std::hex << message.body().size();
// because we don't create multiple responses at once with HTTP/1.1
// pipelining, it's safe to use this "shared state"
content_length_buffer = ostr.str();
}
std::array<boost::asio::const_buffer, 4> buffers = {
asio::buffer(content_length_buffer),
crlf,
asio::buffer(message.body()),
crlf
};
asio::async_write(channel, buffers,
[handler]
(const system::error_code &ec, std::size_t) mutable {
handler(ec);
});
return result.get();
}
template<class Socket>
template<class Message, class CompletionToken>
typename asio::async_result<
typename asio::handler_type<CompletionToken,
void(system::error_code)>::type>::type
basic_socket<Socket>::async_write_trailers(const Message &message,
CompletionToken &&token)
{
static_assert(is_message<Message>::value,
"Message must fulfill the Message concept");
using detail::string_literal_buffer;
typedef typename asio::handler_type<
CompletionToken, void(system::error_code)>::type Handler;
Handler handler(std::forward<CompletionToken>(token));
asio::async_result<Handler> result(handler);
if (!writer_helper.write_trailers()) {
invoke_handler(std::forward<decltype(handler)>(handler),
http_errc::out_of_order);
return result.get();
}
auto last_chunk = string_literal_buffer("0\r\n");
auto crlf = string_literal_buffer("\r\n");
auto sep = string_literal_buffer(": ");
const auto nbuffer_pieces =
// last_chunk
1
// Trailers
// Each header is 4 buffer pieces: key + sep + value + crlf
+ 4 * message.trailers().size()
// Final CRLF for end of trailers
+ 1;
// TODO (C++14): replace by dynarray
std::vector<asio::const_buffer> buffers(nbuffer_pieces);
buffers.push_back(last_chunk);
for (const auto &header: message.trailers()) {
buffers.push_back(asio::buffer(header.first));
buffers.push_back(sep);
buffers.push_back(asio::buffer(header.second));
buffers.push_back(crlf);
}
buffers.push_back(crlf);
asio::async_write(channel, buffers,
[handler,this]
(const system::error_code &ec, std::size_t) mutable {
is_open_ = flags & KEEP_ALIVE;
if (!is_open_)
channel.close();
handler(ec);
});
return result.get();
}
template<class Socket>
template<class CompletionToken>
typename asio::async_result<
typename asio::handler_type<CompletionToken,
void(system::error_code)>::type>::type
basic_socket<Socket>
::async_write_end_of_message(CompletionToken &&token)
{
using detail::string_literal_buffer;
typedef typename asio::handler_type<
CompletionToken, void(system::error_code)>::type Handler;
Handler handler(std::forward<CompletionToken>(token));
asio::async_result<Handler> result(handler);
if (!writer_helper.end()) {
invoke_handler(std::forward<decltype(handler)>(handler),
http_errc::out_of_order);
return result.get();
}
auto last_chunk = string_literal_buffer("0\r\n\r\n");
asio::async_write(channel, last_chunk,
[handler,this]
(const system::error_code &ec, std::size_t) mutable {
is_open_ = flags & KEEP_ALIVE;
if (!is_open_)
channel.close();
handler(ec);
});
return result.get();
}
template<class Socket>
basic_socket<Socket>
::basic_socket(boost::asio::io_service &io_service,
boost::asio::mutable_buffer inbuffer) :
channel(io_service),
istate(http::read_state::empty),
buffer(inbuffer),
writer_helper(http::write_state::empty)
{
if (asio::buffer_size(buffer) == 0)
throw std::invalid_argument("buffers must not be 0-sized");
detail::init(parser);
parser.data = this;
}
template<class Socket>
template<class... Args>
basic_socket<Socket>
::basic_socket(boost::asio::mutable_buffer inbuffer, Args&&... args)
: channel(std::forward<Args>(args)...)
, istate(http::read_state::empty)
, buffer(inbuffer)
, writer_helper(http::write_state::empty)
{
if (asio::buffer_size(buffer) == 0)
throw std::invalid_argument("buffers must not be 0-sized");
detail::init(parser);
parser.data = this;
}
template<class Socket>
Socket &basic_socket<Socket>::next_layer()
{
return channel;
}
template<class Socket>
const Socket &basic_socket<Socket>::next_layer() const
{
return channel;
}
template<class Socket>
void basic_socket<Socket>::open()
{
is_open_ = true;
}
template<class Socket>
template<int target, class Message, class Handler, class String>
void basic_socket<Socket>
::schedule_on_async_read_message(Handler &handler, Message &message,
String *method, String *path)
{
if (used_size) {
// Have cached some bytes from a previous read
on_async_read_message<target>(std::move(handler), method, path, message,
system::error_code{}, 0);
} else {
// TODO (C++14): move in lambda capture list
channel.async_read_some(asio::buffer(buffer + used_size),
[this,handler,method,path,&message]
(const system::error_code &ec,
std::size_t bytes_transferred) mutable {
on_async_read_message<target>(std::move(handler), method, path,
message, ec, bytes_transferred);
});
}
}
template<class Socket>
template<int target, class Message, class Handler, class String>
void basic_socket<Socket>
::on_async_read_message(Handler handler, String *method, String *path,
Message &message, const system::error_code &ec,
std::size_t bytes_transferred)
{
using detail::string_literal_buffer;
if (ec) {
clear_buffer();
handler(ec);
return;
}
used_size += bytes_transferred;
current_method = reinterpret_cast<void*>(method);
current_path = reinterpret_cast<void*>(path);
current_message = reinterpret_cast<void*>(&message);
auto nparsed = detail::execute(parser, settings<Message, String>(),
asio::buffer_cast<const std::uint8_t*>
(buffer),
used_size);
if (parser.http_errno) {
system::error_code ignored_ec;
if (parser.http_errno
== int(detail::parser_error::cb_headers_complete)) {
clear_buffer();
clear_message(message);
auto error_message
= string_literal_buffer("HTTP/1.1 505 HTTP Version Not"
" Supported\r\n"
"Content-Length: 48\r\n"
"Connection: close\r\n"
"\r\n"
"This server only supports HTTP/1.0 and"
" HTTP/1.1\n");
asio::async_write(channel, asio::buffer(error_message),
[this,handler](system::error_code ignored_ec,
std::size_t bytes_transferred)
mutable {
handler(system::error_code{http_errc::parsing_error});
});
return;
} else if (parser.http_errno
== int(detail::parser_error::cb_message_complete)) {
/* After an error is set, http_parser enter in an invalid state
and needs to be reset. */
detail::init(parser);
} else {
clear_buffer();
handler(system::error_code(http_errc::parsing_error));
return;
}
}
{
auto b = asio::buffer_cast<std::uint8_t*>(buffer);
std::copy_n(b + nparsed, used_size - nparsed, b);
}
used_size -= nparsed;
if (target == READY && flags & READY) {
flags &= ~READY;
handler(system::error_code{});
} else if (target == DATA && flags & (DATA|END)) {
flags &= ~(READY|DATA);
handler(system::error_code{});
} else if (target == END && flags & END) {
flags &= ~(READY|DATA|END);
handler(system::error_code{});
} else {
if (used_size == asio::buffer_size(buffer)) {
handler(system::error_code{http_errc::buffer_exhausted});
return;
}
// TODO (C++14): move in lambda capture list
channel.async_read_some(asio::buffer(buffer + used_size),
[this,handler,method,path,&message]
(const system::error_code &ec,
std::size_t bytes_transferred) mutable {
on_async_read_message<target>(std::move(handler), method, path,
message, ec, bytes_transferred);
});
}
}
template<class Socket>
template<class Message, class String>
detail::http_parser_settings basic_socket<Socket>::settings()
{
http_parser_settings settings;
init(settings);
settings.on_message_begin = on_message_begin<Message>;
settings.on_url = on_url<Message, String>;
settings.on_header_field = on_header_field<Message>;
settings.on_header_value = on_header_value<Message>;
settings.on_headers_complete = on_headers_complete<Message, String>;
settings.on_body = on_body<Message>;
settings.on_message_complete = on_message_complete<Message>;
return settings;
}
template<class Socket>
template<class Message>
int basic_socket<Socket>::on_message_begin(http_parser *parser)
{
auto socket = reinterpret_cast<basic_socket*>(parser->data);
auto message = reinterpret_cast<Message*>(socket->current_message);
socket->flags = 0;
socket->use_trailers = false;
clear_message(*message);
return 0;
}
template<class Socket>
template<class Message, class String>
int basic_socket<Socket>::on_url(http_parser *parser, const char *at,
std::size_t size)
{
auto socket = reinterpret_cast<basic_socket*>(parser->data);
auto path = reinterpret_cast<String*>(socket->current_path);
path->append(at, size);
return 0;
}
template<class Socket>
template<class Message>
int basic_socket<Socket>
::on_header_field(http_parser *parser, const char *at, std::size_t size)
{
using std::transform;
auto tolower = [](int ch) -> int { return std::tolower(ch); };
auto socket = reinterpret_cast<basic_socket*>(parser->data);
auto message = reinterpret_cast<Message*>(socket->current_message);
auto &field = socket->last_header.first;
auto &value = socket->last_header.second;
if (value.size() /* last header piece was value */) {
algorithm::trim_right_if(socket->last_header.second, [](char ch) {
return ch == ' ' || ch == '\t';
});
if ((parser->http_minor != 0 || parser->http_major > 1)
|| (field != "expect" && field != "upgrade")) {
(socket->use_trailers ? message->trailers() : message->headers())
.insert(socket->last_header);
}
value.clear();
field.replace(0, field.size(), at, size);
transform(field.begin(), field.end(), field.begin(), tolower);
} else {
auto offset = field.size();
field.append(at, size);
auto begin = field.begin() + offset;
transform(begin, field.end(), begin, tolower);
}
return 0;
}
template<class Socket>
template<class Message>
int basic_socket<Socket>
::on_header_value(http_parser *parser, const char *at, std::size_t size)
{
auto socket = reinterpret_cast<basic_socket*>(parser->data);
auto &value = socket->last_header.second;
value.append(at, size);
return 0;
}
template<class Socket>
template<class Message, class String>
int basic_socket<Socket>::on_headers_complete(http_parser *parser)
{
auto socket = reinterpret_cast<basic_socket*>(parser->data);
auto message = reinterpret_cast<Message*>(socket->current_message);
{
auto method = reinterpret_cast<String*>(socket->current_method);
using detail::constchar_helper;
static const constchar_helper methods[] = {
"DELETE",
"GET",
"HEAD",
"POST",
"PUT",
"CONNECT",
"OPTIONS",
"TRACE",
"COPY",
"LOCK",
"MKCOL",
"MOVE",
"PROPFIND",
"PROPPATCH",
"SEARCH",
"UNLOCK",
"REPORT",
"MKACTIVITY",
"CHECKOUT",
"MERGE",
"M-SEARCH",
"NOTIFY",
"SUBSCRIBE",
"UNSUBSCRIBE",
"PATCH",
"PURGE",
"MKCALENDAR"
};
const auto &m = methods[parser->method];
method->append(m.data, m.size);
socket->connect_request = parser->method == 5;
}
{
auto handle_error = [](){
/* WARNING: if you update the code and another error condition
become possible, you'll be in trouble, because, as I write
this comment, there is **NOT** a non-hacky way to notify
different error conditions through the callback return value
(Ryan Dahl's parser limitation, probably designed in favor of
lower memory consumption) and then you'll need to call the
type erased user handler from this very function. One
solution with minimal performance impact to this future
problem is presented below.
First, update this function signature to also remember the
erased type:
```cpp
template<class Message, class Handler>
static int on_headers_complete(http_parser *parser)
```
Now add the following member to this class:
```cpp
void *handler;
```
Before the execute function is called, update the previously
declared member:
```cpp
this->handler = &handler;
```
Now use the following to call the type erased user function
from this very function:
```cpp
auto &handler = *reinterpret_cast<Handler*>(socket->handler);
handler(system::error_code{http_errc::parsing_error});
``` */
/* We don't use http_parser_pause, because it looks error-prone:
<https://github.com/joyent/http-parser/issues/97>. */
return -1;
};
switch (parser->http_major) {
case 1:
if (parser->http_minor != 0)
socket->flags |= HTTP_1_1;
break;
default:
return handle_error();
}
}
if (socket->last_header.first.size()
&& ((socket->flags & HTTP_1_1)
|| (socket->last_header.first != "expect"
&& socket->last_header.first != "upgrade"))) {
algorithm::trim_right_if(socket->last_header.second, [](char ch) {
return ch == ' ' || ch == '\t';
});
message->headers().insert(socket->last_header);
}
socket->last_header.first.clear();
socket->last_header.second.clear();
socket->use_trailers = true;
socket->istate = http::read_state::message_ready;
socket->flags |= READY;
socket->writer_helper = http::write_state::empty;
{
auto er = message->headers().equal_range("expect");
if (std::distance(er.first, er.second) > 1)
message->headers().erase(er.first, er.second);
}
if (detail::should_keep_alive(*parser))
socket->flags |= KEEP_ALIVE;
return 0;
}
template<class Socket>
template<class Message>
int basic_socket<Socket>
::on_body(http_parser *parser, const char *data, std::size_t size)
{
auto socket = reinterpret_cast<basic_socket*>(parser->data);
auto message = reinterpret_cast<Message*>(socket->current_message);
auto begin = reinterpret_cast<const std::uint8_t*>(data);
message->body().insert(message->body().end(), begin, begin + size);
socket->flags |= DATA;
if (detail::body_is_final(*parser))
socket->istate = http::read_state::body_ready;
return 0;
}
template<class Socket>
template<class Message>
int basic_socket<Socket>::on_message_complete(http_parser *parser)
{
auto socket = reinterpret_cast<basic_socket*>(parser->data);
auto message = reinterpret_cast<Message*>(socket->current_message);
if (socket->last_header.first.size()) {
algorithm::trim_right_if(socket->last_header.second, [](char ch) {
return ch == ' ' || ch == '\t';
});
message->trailers().insert(socket->last_header);
}
socket->last_header.first.clear();
socket->last_header.second.clear();
socket->istate = http::read_state::empty;
socket->use_trailers = false;
socket->flags |= END | (parser->upgrade ? UPGRADE : 0);
/* To avoid passively parsing pipelined message ahead-of-asked, we
signalize error to stop parsing. */
return -1;
}
template<class Socket>
void basic_socket<Socket>::clear_buffer()
{
istate = http::read_state::empty;
writer_helper.state = http::write_state::empty;
used_size = 0;
detail::init(parser);
}
template<class Socket>
template<class Message>
void basic_socket<Socket>::clear_message(Message &message)
{
message.headers().clear();
message.body().clear();
message.trailers().clear();
}
template<class Socket>
template <typename Handler,
typename ErrorCode>
void basic_socket<Socket>::invoke_handler(Handler&& handler,
ErrorCode error)
{
channel.get_io_service().post
([handler, error] () mutable
{
handler(make_error_code(error));
});
}
template<class Socket>
template <class Handler>
void basic_socket<Socket>::invoke_handler(Handler&& handler)
{
channel.get_io_service().post
([handler] () mutable
{
handler(system::error_code{});
});
}
} // namespace boost
} // namespace http