1 | <?php |
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2 | |||
3 | namespace CmdrSharp\AmqpRouteMessenger; |
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4 | |||
5 | use PhpAmqpLib\Connection\AMQPStreamConnection; |
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6 | use PhpAmqpLib\Connection\AMQPSSLConnection; |
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7 | use PhpAmqpLib\Channel\AMQPChannel; |
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8 | use PhpAmqpLib\Message\AMQPMessage; |
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9 | use Log; |
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10 | |||
11 | class Client implements ClientInterface |
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12 | { |
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13 | /** @var AMQPStreamConnection */ |
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14 | protected $connection; |
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15 | |||
16 | /** @var AMQPChannel */ |
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17 | protected $channel; |
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18 | |||
19 | /** @var string */ |
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20 | protected $exchange_name; |
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21 | |||
22 | /** @var string */ |
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23 | protected $queue_name; |
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24 | |||
25 | /** @var mixed */ |
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26 | private $response; |
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27 | |||
28 | /** |
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29 | * Factory constructor. |
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30 | */ |
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31 | public function __construct() |
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32 | { |
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33 | $this->connection = new AMQPSSLConnection( |
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34 | config('amqproutemessenger.host', 'localhost'), |
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35 | config('amqproutemessenger.port', '5672'), |
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36 | config('amqproutemessenger.login', 'guest'), |
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37 | config('amqproutemessenger.password', 'guest'), |
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38 | config('amqproutemessenger.vhost', '/'), |
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39 | $this->createSslContext(), |
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40 | [ |
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41 | 'insist' => config('amqproutemessenger.insist', false), |
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42 | 'login_method' => config('amqproutemessenger.login_method', 'AMQPLAIN'), |
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43 | 'login_response' => null, |
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44 | 'locale' => config('amqproutemessenger.locale', 'en_US'), |
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45 | 'connection_timeout' => config('amqproutemessenger.connection_timeout', 3.0), |
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46 | 'read_write_timeout' => config('amqproutemessenger.read_write_timeout', 3.0), |
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47 | 'keepalive' => config('amqproutemessenger.keepalive', false), |
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48 | 'heartbeat' => config('amqproutemessenger.heartbeat', 0) |
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49 | ] |
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50 | ); |
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51 | } |
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52 | |||
53 | /** |
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54 | * Factory destructor. |
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55 | */ |
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56 | public function __destruct() |
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57 | { |
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58 | if ($this->channel) { |
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59 | $this->channel->close(); |
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60 | } |
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61 | |||
62 | if ($this->connection && $this->connection->isConnected()) { |
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63 | $this->connection->close(); |
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64 | } |
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65 | } |
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66 | |||
67 | /** |
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68 | * Generates an array of SSL Options if specified. |
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69 | * |
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70 | * @return array |
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71 | */ |
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72 | private function createSslContext(): array |
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73 | { |
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74 | $ca_file = config('amqproutemessenger.ca_file', null); |
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75 | $verify_peer = config('amqproutemessenger.verify_peer', false); |
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76 | |||
77 | if (null !== $ca_file) { |
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78 | return [ |
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79 | 'cafile' => $ca_file, |
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80 | 'verify_peer' => $verify_peer |
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81 | ]; |
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82 | } |
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83 | |||
84 | return []; |
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85 | } |
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86 | |||
87 | /** |
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88 | * Declares an Exchange. |
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89 | * |
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90 | * @param string $exchange_name |
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91 | * @param bool $passive |
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92 | * @return Client |
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93 | */ |
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94 | public function declareExchange(string $exchange_name, bool $passive = false): ClientInterface |
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95 | { |
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96 | if (!$this->channel) { |
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97 | $this->channel = $this->connection->channel(); |
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98 | } |
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99 | |||
100 | $this->exchange_name = $exchange_name; |
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101 | |||
102 | $this->channel->exchange_declare( |
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103 | $this->exchange_name, |
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104 | 'direct', |
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105 | $passive, |
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106 | false, |
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107 | false |
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108 | ); |
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109 | |||
110 | return $this; |
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111 | } |
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112 | |||
113 | /** |
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114 | * Declares a randomly generated queue. |
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115 | * |
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116 | * @param bool $passive |
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117 | * @return Client |
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118 | */ |
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119 | public function declareQueue(bool $passive = false): ClientInterface |
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120 | { |
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121 | if (!$this->channel) { |
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122 | $this->channel = $this->connection->channel(); |
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123 | } |
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124 | |||
125 | list($this->queue_name, , ) = $this->channel->queue_declare( |
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126 | "", |
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127 | $passive, |
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128 | false, |
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129 | true, |
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130 | false |
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131 | ); |
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132 | |||
133 | return $this; |
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134 | } |
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135 | |||
136 | /** |
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137 | * Binds a queue. |
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138 | * |
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139 | * @param string $correlation_id |
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140 | * @return Client |
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141 | * @throws \ErrorException |
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142 | */ |
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143 | public function bindQueue(string $correlation_id): ClientInterface |
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144 | { |
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145 | if (!$this->channel || !$this->queue_name || !$this->exchange_name) { |
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146 | throw new \ErrorException('An exchange has not been defined.'); |
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147 | } |
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148 | |||
149 | $this->channel->queue_bind($this->queue_name, $this->exchange_name, $correlation_id); |
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150 | |||
151 | return $this; |
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152 | } |
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153 | |||
154 | /** |
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155 | * Publishes a routed message. |
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156 | * |
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157 | * @param string $correlation_id |
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158 | * @param string $message |
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159 | * @return bool |
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160 | * @throws \ErrorException |
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161 | */ |
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162 | public function publish(string $correlation_id, string $message): bool |
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163 | { |
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164 | if (!$this->channel || !$this->exchange_name) { |
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165 | throw new \ErrorException('An exchange has not been defined.'); |
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166 | } |
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167 | |||
168 | $this->channel->set_ack_handler(function (AMQPMessage $message) { |
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169 | Log::info('AMQP Message ACK'); |
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170 | }); |
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171 | |||
172 | $this->channel->set_nack_handler(function (AMQPMessage $message) { |
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173 | Log::error('AMQP Message NACK'); |
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174 | }); |
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175 | |||
176 | $this->channel->confirm_select(); |
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177 | |||
178 | $this->channel->basic_publish(new AMQPMessage($message), $this->exchange_name, $correlation_id); |
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179 | $this->channel->wait_for_pending_acks(); |
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180 | |||
181 | return true; |
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182 | } |
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183 | |||
184 | /** |
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185 | * Reads from a routed exchange and returns the response. |
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186 | * |
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187 | * @param int $timeout |
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188 | * @return mixed |
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189 | * @throws \ErrorException |
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190 | */ |
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191 | public function read(int $timeout = 0): string |
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192 | { |
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193 | if (!$this->queue_name || !$this->channel) { |
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194 | throw new \ErrorException('A queue, or exchange, have not been defined.'); |
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195 | } |
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196 | |||
197 | $callback = function ($msg) { |
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198 | return $this->response = $msg->body; |
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199 | }; |
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200 | |||
201 | $this->channel->basic_consume( |
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202 | $this->queue_name, |
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203 | '', |
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204 | false, |
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205 | true, |
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206 | false, |
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207 | false, |
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208 | $callback |
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209 | ); |
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210 | |||
211 | while ($this->response === null && count($this->channel->callbacks)) { |
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212 | $this->channel->wait(null, false, $timeout); |
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213 | } |
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214 | |||
215 | return $this->response; |
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216 | } |
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217 | |||
218 | /** |
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219 | * Closes a connection. |
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220 | * |
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221 | * @return $this |
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222 | */ |
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223 | public function closeConnection(): ClientInterface |
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224 | { |
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225 | if ($this->connection->isConnected()) { |
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226 | $this->connection->close(); |
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227 | } |
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228 | |||
229 | return $this; |
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230 | } |
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231 | |||
232 | /** |
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233 | * Closes a channel. |
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234 | * |
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235 | * @return $this |
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236 | */ |
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237 | public function closeChannel(): ClientInterface |
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238 | { |
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239 | if ($this->channel) { |
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240 | $this->channel->close(); |
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241 | } |
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242 | |||
243 | return $this; |
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244 | } |
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245 | |||
246 | /** |
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247 | * Returns the active connection. |
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248 | * |
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249 | * @return AMQPStreamConnection |
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250 | */ |
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251 | public function getConnection(): AMQPStreamConnection |
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252 | { |
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253 | return $this->connection; |
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254 | } |
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255 | |||
256 | /** |
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257 | * Returns the channel. |
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258 | * |
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259 | * @return mixed |
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260 | */ |
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261 | public function getChannel(): AMQPChannel |
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262 | { |
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263 | return $this->channel ?: false; |
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264 | } |
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265 | |||
266 | /** |
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267 | * Returns the name of the queue declared. |
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268 | * |
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269 | * @return mixed |
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270 | */ |
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271 | public function getQueue(): string |
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272 | { |
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273 | return $this->queue_name ?: false; |
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274 | } |
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275 | } |
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276 |