1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
|
/*
* Copyright (c) 2019 Cisco and/or its affiliates.
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "IcnReceiver.h"
#include "HTTP1.xMessageFastParser.h"
#include <hicn/transport/http/default_values.h>
#include <hicn/transport/utils/hash.h>
#include <functional>
#include <memory>
namespace transport {
core::Prefix generatePrefix(const std::string& prefix_url) {
const char* str = prefix_url.c_str();
uint16_t pos = 0;
if (strncmp("http://", str, 7) == 0) {
pos = 7;
} else if (strncmp("https://", str, 8) == 0) {
pos = 8;
}
str += pos;
uint32_t locator_hash = utils::hash::fnv32_buf(str, strlen(str));
std::stringstream stream;
stream << std::hex << http::default_values::ipv6_first_word << ":0";
for (uint16_t* word = (uint16_t*)&locator_hash;
std::size_t(word) < (std::size_t(&locator_hash) + sizeof(locator_hash));
word++) {
stream << ":" << std::hex << *word;
}
stream << "::0";
return core::Prefix(stream.str(), 64);
}
AsyncConsumerProducer::AsyncConsumerProducer(const std::string& prefix,
std::string& ip_address,
std::string& port,
std::string& cache_size)
: prefix_(generatePrefix(prefix)),
producer_socket_(),
ip_address_(ip_address),
port_(port),
cache_size_(std::stoul(cache_size)),
request_counter_(0),
signals_(io_service_, SIGINT, SIGQUIT),
connector_(io_service_, ip_address_, port_,
std::bind(&AsyncConsumerProducer::publishContent, this,
std::placeholders::_1, std::placeholders::_2,
std::placeholders::_3, std::placeholders::_4),
[this]() {
std::queue<interface::PublicationOptions> empty;
std::swap(response_name_queue_, empty);
}) {
int ret = producer_socket_.setSocketOption(
interface::GeneralTransportOptions::OUTPUT_BUFFER_SIZE, cache_size_);
if (ret != SOCKET_OPTION_SET) {
TRANSPORT_LOGD("Warning: output buffer size has not been set.");
}
producer_socket_.registerPrefix(prefix_);
// Let the main thread to catch SIGINT and SIGQUIT
signals_.async_wait(
[this](const std::error_code& errorCode, int signal_number) {
TRANSPORT_LOGI("Number of requests processed by plugin: %lu",
(unsigned long)request_counter_);
producer_socket_.stop();
connector_.close();
});
}
void AsyncConsumerProducer::start() {
TRANSPORT_LOGD("Starting listening");
doReceive();
}
void AsyncConsumerProducer::run() {
start();
io_service_.run();
}
void AsyncConsumerProducer::doReceive() {
producer_socket_.setSocketOption(
interface::ProducerCallbacksOptions::CACHE_MISS,
[this](interface::ProducerSocket& producer,
interface::Interest& interest) {
// core::Name n(interest.getWritableName(), true);
io_service_.post(std::bind(
&AsyncConsumerProducer::manageIncomingInterest, this,
interest.getWritableName(), interest.acquireMemBufReference(),
interest.getPayload().release()));
});
producer_socket_.connect();
}
void AsyncConsumerProducer::manageIncomingInterest(
core::Name& name, core::Packet::MemBufPtr& packet, utils::MemBuf* payload) {
// auto seg = name.getSuffix();
name.setSuffix(0);
auto _it = chunk_number_map_.find(name);
auto _end = chunk_number_map_.end();
if (_it != _end) {
return;
}
bool is_mpd =
HTTPMessageFastParser::isMpdRequest(payload->data(), payload->length());
chunk_number_map_.emplace(name, 0);
response_name_queue_.emplace(std::move(name), is_mpd ? 500 : 10000);
connector_.send(payload, [packet = std::move(packet)]() {});
}
void AsyncConsumerProducer::publishContent(const uint8_t* data,
std::size_t size, bool is_last,
bool headers) {
uint32_t start_suffix = 0;
if (response_name_queue_.empty()) {
abort();
}
interface::PublicationOptions& options = response_name_queue_.front();
int ret = producer_socket_.setSocketOption(
interface::GeneralTransportOptions::CONTENT_OBJECT_EXPIRY_TIME,
options.getLifetime());
if (TRANSPORT_EXPECT_FALSE(ret != SOCKET_OPTION_SET)) {
TRANSPORT_LOGD("Warning: content object lifetime has not been set.");
}
const interface::Name& name = options.getName();
start_suffix = chunk_number_map_[name];
if (headers) {
request_counter_++;
}
chunk_number_map_[name] +=
producer_socket_.produce(name, data, size, is_last, start_suffix);
if (is_last) {
chunk_number_map_.erase(name);
response_name_queue_.pop();
}
}
} // namespace transport
|
