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https://github.com/RGBCube/serenity
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LibHTTP: Unify and generalise response handling logic
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parent
3dd0f755d0
commit
155853afb2
8 changed files with 442 additions and 400 deletions
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@ -36,193 +36,6 @@
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namespace HTTP {
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static ByteBuffer handle_content_encoding(const ByteBuffer& buf, const String& content_encoding)
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{
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#ifdef HTTPSJOB_DEBUG
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dbg() << "HttpsJob::handle_content_encoding: buf has content_encoding = " << content_encoding;
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#endif
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if (content_encoding == "gzip") {
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if (!Core::Gzip::is_compressed(buf)) {
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dbg() << "HttpsJob::handle_content_encoding: buf is not gzip compressed!";
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}
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#ifdef HTTPSJOB_DEBUG
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dbg() << "HttpsJob::handle_content_encoding: buf is gzip compressed!";
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#endif
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auto uncompressed = Core::Gzip::decompress(buf);
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if (!uncompressed.has_value()) {
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dbg() << "HttpsJob::handle_content_encoding: Gzip::decompress() failed. Returning original buffer.";
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return buf;
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}
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#ifdef HTTPSJOB_DEBUG
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dbg() << "HttpsJob::handle_content_encoding: Gzip::decompress() successful.\n"
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<< " Input size = " << buf.size() << "\n"
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<< " Output size = " << uncompressed.value().size();
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#endif
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return uncompressed.value();
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}
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return buf;
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}
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HttpsJob::HttpsJob(const HttpRequest& request)
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: m_request(request)
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{
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}
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HttpsJob::~HttpsJob()
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{
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m_socket = nullptr;
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}
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void HttpsJob::on_socket_connected()
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{
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m_socket->on_tls_ready_to_write = [&](TLS::TLSv12& tls) {
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if (m_sent_data)
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return;
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m_sent_data = true;
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auto raw_request = m_request.to_raw_request();
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#if 0
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dbg() << "HttpsJob: raw_request:";
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dbg() << String::copy(raw_request).characters();
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#endif
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bool success = tls.write(raw_request);
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if (!success)
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deferred_invoke([this](auto&) { did_fail(Core::NetworkJob::Error::TransmissionFailed); });
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};
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m_socket->on_tls_ready_to_read = [&](TLS::TLSv12& tls) {
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#ifdef HTTPS_DEBUG
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dbg() << " ON TLS READY TO READ: " << (u16)m_state;
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#endif
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if (is_cancelled())
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return;
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if (m_state == State::InStatus) {
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if (!tls.can_read_line()) {
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dbg() << " cannot read line";
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return;
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}
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auto line = tls.read_line(PAGE_SIZE);
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if (line.is_null()) {
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fprintf(stderr, "HttpsJob: Expected HTTP status\n");
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return deferred_invoke([this](auto&) { did_fail(Core::NetworkJob::Error::TransmissionFailed); });
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}
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auto parts = String::copy(line, Chomp).split(' ');
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if (parts.size() < 3) {
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fprintf(stderr, "HttpsJob: Expected 3-part HTTP status, got '%s'\n", line.data());
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return deferred_invoke([this](auto&) { did_fail(Core::NetworkJob::Error::ProtocolFailed); });
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}
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bool ok;
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m_code = parts[1].to_uint(ok);
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if (!ok) {
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fprintf(stderr, "HttpsJob: Expected numeric HTTP status\n");
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return deferred_invoke([this](auto&) { did_fail(Core::NetworkJob::Error::ProtocolFailed); });
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}
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m_state = State::InHeaders;
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return;
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}
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if (m_state == State::InHeaders) {
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if (!tls.can_read_line())
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return;
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auto line = tls.read_line(PAGE_SIZE);
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if (line.is_null()) {
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fprintf(stderr, "HttpsJob: Expected HTTP header\n");
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return did_fail(Core::NetworkJob::Error::ProtocolFailed);
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}
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auto chomped_line = String::copy(line, Chomp);
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if (chomped_line.is_empty()) {
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m_state = State::InBody;
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return;
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}
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auto parts = chomped_line.split(':');
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if (parts.is_empty()) {
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fprintf(stderr, "HttpsJob: Expected HTTP header with key/value\n");
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return deferred_invoke([this](auto&) { did_fail(Core::NetworkJob::Error::ProtocolFailed); });
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}
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auto name = parts[0];
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if (chomped_line.length() < name.length() + 2) {
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fprintf(stderr, "HttpsJob: Malformed HTTP header: '%s' (%zu)\n", chomped_line.characters(), chomped_line.length());
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return deferred_invoke([this](auto&) { did_fail(Core::NetworkJob::Error::ProtocolFailed); });
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}
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auto value = chomped_line.substring(name.length() + 2, chomped_line.length() - name.length() - 2);
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m_headers.set(name, value);
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#ifdef HTTPSJOB_DEBUG
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dbg() << "HttpsJob: [" << name << "] = '" << value << "'";
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#endif
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return;
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}
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ASSERT(m_state == State::InBody);
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ASSERT(tls.can_read());
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while (tls.can_read())
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read_body(tls);
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if (!tls.is_established())
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return finish_up();
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};
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}
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void HttpsJob::read_body(TLS::TLSv12& tls)
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{
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auto payload = tls.read(64 * KB);
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if (!payload) {
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if (tls.eof())
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return finish_up();
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return deferred_invoke([this](auto&) { did_fail(Core::NetworkJob::Error::ProtocolFailed); });
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}
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m_received_buffers.append(payload);
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m_received_size += payload.size();
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auto content_length_header = m_headers.get("Content-Length");
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Optional<u32> content_length {};
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if (content_length_header.has_value()) {
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bool ok;
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auto length = content_length_header.value().to_uint(ok);
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if (ok)
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content_length = length;
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}
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// This needs to be synchronous
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// FIXME: Somehow enforce that this should not modify anything
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did_progress(content_length, m_received_size);
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if (content_length.has_value()) {
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auto length = content_length.value();
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if (m_received_size >= length) {
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m_received_size = length;
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finish_up();
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}
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}
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}
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void HttpsJob::finish_up()
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{
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m_state = State::Finished;
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auto flattened_buffer = ByteBuffer::create_uninitialized(m_received_size);
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u8* flat_ptr = flattened_buffer.data();
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for (auto& received_buffer : m_received_buffers) {
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memcpy(flat_ptr, received_buffer.data(), received_buffer.size());
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flat_ptr += received_buffer.size();
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}
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m_received_buffers.clear();
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auto content_encoding = m_headers.get("Content-Encoding");
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if (content_encoding.has_value()) {
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flattened_buffer = handle_content_encoding(flattened_buffer, content_encoding.value());
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}
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auto response = HttpResponse::create(m_code, move(m_headers), move(flattened_buffer));
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deferred_invoke([this, response](auto&) {
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did_finish(move(response));
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});
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}
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void HttpsJob::start()
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{
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ASSERT(!m_socket);
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@ -268,4 +81,57 @@ void HttpsJob::shutdown()
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remove_child(*m_socket);
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m_socket = nullptr;
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}
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void HttpsJob::read_while_data_available(Function<IterationDecision()> read)
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{
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while (m_socket->can_read()) {
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if (read() == IterationDecision::Break)
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break;
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}
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}
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void HttpsJob::register_on_ready_to_read(Function<void()> callback)
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{
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m_socket->on_tls_ready_to_read = [callback = move(callback)](auto&) {
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callback();
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};
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}
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void HttpsJob::register_on_ready_to_write(Function<void()> callback)
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{
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m_socket->on_tls_ready_to_write = [callback = move(callback)](auto&) {
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callback();
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};
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}
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bool HttpsJob::can_read_line()
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{
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return m_socket->can_read_line();
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}
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ByteBuffer HttpsJob::read_line(size_t size)
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{
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return m_socket->read_line(size);
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}
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ByteBuffer HttpsJob::receive(size_t size)
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{
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return m_socket->read(size);
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}
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bool HttpsJob::can_read() const
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{
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return m_socket->can_read();
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}
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bool HttpsJob::eof() const
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{
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return m_socket->eof();
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}
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bool HttpsJob::write(const ByteBuffer& data)
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{
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return m_socket->write(data);
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}
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}
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