jcs.org
Serenity Operating System
1/*
2 * Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
3 *
4 * SPDX-License-Identifier: BSD-2-Clause
5 */
6
7#include <LibProtocol/Request.h>
8#include <LibProtocol/RequestClient.h>
9
10namespace Protocol {
11
12Request::Request(RequestClient& client, i32 request_id)
13 : m_client(client)
14 , m_request_id(request_id)
15{
16}
17
18bool Request::stop()
19{
20 return m_client->stop_request({}, *this);
21}
22
23void Request::stream_into(Stream& stream)
24{
25 VERIFY(!m_internal_stream_data);
26
27 m_internal_stream_data = make<InternalStreamData>(MUST(Core::File::adopt_fd(fd(), Core::File::OpenMode::Read)));
28 m_internal_stream_data->read_notifier = Core::Notifier::construct(fd(), Core::Notifier::Read);
29
30 auto user_on_finish = move(on_finish);
31 on_finish = [this](auto success, auto total_size) {
32 m_internal_stream_data->success = success;
33 m_internal_stream_data->total_size = total_size;
34 m_internal_stream_data->request_done = true;
35 m_internal_stream_data->on_finish();
36 };
37
38 m_internal_stream_data->on_finish = [this, user_on_finish = move(user_on_finish)] {
39 if (!m_internal_stream_data->user_finish_called && m_internal_stream_data->read_stream->is_eof()) {
40 m_internal_stream_data->user_finish_called = true;
41 user_on_finish(m_internal_stream_data->success, m_internal_stream_data->total_size);
42 }
43 };
44 m_internal_stream_data->read_notifier->on_ready_to_read = [this, &stream] {
45 constexpr size_t buffer_size = 256 * KiB;
46 static char buf[buffer_size];
47 do {
48 auto result = m_internal_stream_data->read_stream->read_some({ buf, buffer_size });
49 if (result.is_error() && (!result.error().is_errno() || (result.error().is_errno() && result.error().code() != EINTR)))
50 break;
51 if (result.is_error())
52 continue;
53 auto read_bytes = result.release_value();
54 if (read_bytes.is_empty())
55 break;
56 // FIXME: What do we do if this fails?
57 stream.write_until_depleted(read_bytes).release_value_but_fixme_should_propagate_errors();
58 break;
59 } while (true);
60
61 if (m_internal_stream_data->read_stream->is_eof())
62 m_internal_stream_data->read_notifier->close();
63
64 if (m_internal_stream_data->request_done)
65 m_internal_stream_data->on_finish();
66 };
67}
68
69void Request::set_should_buffer_all_input(bool value)
70{
71 if (m_should_buffer_all_input == value)
72 return;
73
74 if (m_internal_buffered_data && !value) {
75 m_internal_buffered_data = nullptr;
76 m_should_buffer_all_input = false;
77 return;
78 }
79
80 VERIFY(!m_internal_stream_data);
81 VERIFY(!m_internal_buffered_data);
82 VERIFY(on_buffered_request_finish); // Not having this set makes no sense.
83 m_internal_buffered_data = make<InternalBufferedData>();
84 m_should_buffer_all_input = true;
85
86 on_headers_received = [this](auto& headers, auto response_code) {
87 m_internal_buffered_data->response_headers = headers;
88 m_internal_buffered_data->response_code = move(response_code);
89 };
90
91 on_finish = [this](auto success, u32 total_size) {
92 auto output_buffer = ByteBuffer::create_uninitialized(m_internal_buffered_data->payload_stream.used_buffer_size()).release_value_but_fixme_should_propagate_errors();
93 m_internal_buffered_data->payload_stream.read_until_filled(output_buffer).release_value_but_fixme_should_propagate_errors();
94 on_buffered_request_finish(
95 success,
96 total_size,
97 m_internal_buffered_data->response_headers,
98 m_internal_buffered_data->response_code,
99 output_buffer);
100 };
101
102 stream_into(m_internal_buffered_data->payload_stream);
103}
104
105void Request::did_finish(Badge<RequestClient>, bool success, u32 total_size)
106{
107 if (!on_finish)
108 return;
109
110 on_finish(success, total_size);
111}
112
113void Request::did_progress(Badge<RequestClient>, Optional<u32> total_size, u32 downloaded_size)
114{
115 if (on_progress)
116 on_progress(total_size, downloaded_size);
117}
118
119void Request::did_receive_headers(Badge<RequestClient>, HashMap<DeprecatedString, DeprecatedString, CaseInsensitiveStringTraits> const& response_headers, Optional<u32> response_code)
120{
121 if (on_headers_received)
122 on_headers_received(response_headers, response_code);
123}
124
125void Request::did_request_certificates(Badge<RequestClient>)
126{
127 if (on_certificate_requested) {
128 auto result = on_certificate_requested();
129 if (!m_client->set_certificate({}, *this, result.certificate, result.key)) {
130 dbgln("Request: set_certificate failed");
131 }
132 }
133}
134}