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1 | <?php |
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2 | |||
3 | namespace PragmaRX\Health\Checkers; |
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4 | |||
5 | use GuzzleHttp\TransferStats; |
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6 | use GuzzleHttp\Client as Guzzle; |
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7 | use Illuminate\Support\Collection; |
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8 | use PragmaRX\Health\Support\Result; |
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9 | |||
10 | class Http extends Base |
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11 | { |
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12 | /** |
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13 | * @return Result |
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14 | */ |
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15 | protected $secure = false; |
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16 | |||
17 | /** |
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18 | * @var |
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19 | */ |
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20 | protected $guzzle; |
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21 | |||
22 | /** |
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23 | * @var |
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24 | */ |
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25 | private $totalTime; |
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26 | |||
27 | /** |
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28 | * @var |
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29 | */ |
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30 | private $url; |
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31 | |||
32 | /** |
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33 | * HTTP Checker. |
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34 | * |
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35 | * @return Result |
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36 | */ |
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37 | 1 | public function check() |
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38 | { |
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39 | try { |
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40 | 1 | $health = []; |
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0 ignored issues
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41 | |||
42 | 1 | foreach ($this->getResourceUrlArray() as $url) { |
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43 | 1 | list($healthy, $message) = $this->checkWebPage( |
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44 | 1 | $this->makeUrlWithScheme($url, $this->secure), |
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45 | 1 | $this->secure |
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46 | ); |
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47 | |||
48 | 1 | if (! $healthy) { |
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49 | 1 | return $this->makeResult($healthy, $message); |
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50 | } |
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51 | } |
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52 | |||
53 | 1 | return $this->makeHealthyResult(); |
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54 | 1 | } catch (\Exception $exception) { |
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55 | 1 | report($exception); |
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56 | |||
57 | 1 | return $this->makeResultFromException($exception); |
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58 | } |
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59 | } |
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60 | |||
61 | /** |
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62 | * Get array of resource urls. |
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63 | * |
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64 | * @return array |
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65 | */ |
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66 | 1 | private function getResourceUrlArray() |
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67 | { |
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68 | 1 | if (is_a($this->target->urls, Collection::class)) { |
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69 | 1 | return $this->target->urls->toArray(); |
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70 | } |
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71 | |||
72 | return (array) $this->target->urls; |
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73 | } |
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74 | |||
75 | /** |
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76 | * Check web pages. |
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77 | * |
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78 | * @param $url |
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79 | * @param bool $ssl |
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80 | * @return mixed |
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81 | */ |
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82 | 1 | private function checkWebPage($url, $ssl = false) |
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83 | { |
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84 | 1 | $success = $this->requestSuccessful($url, $ssl); |
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85 | |||
86 | 1 | return [$success, $success ? '' : $this->getErrorMessage()]; |
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87 | } |
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88 | |||
89 | /** |
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90 | * Send an http request and fetch the response. |
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91 | * |
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92 | * @param $url |
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93 | * @param $ssl |
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94 | * @return mixed|\Psr\Http\Message\ResponseInterface |
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95 | * @throws \GuzzleHttp\Exception\GuzzleException |
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96 | */ |
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97 | 1 | private function fetchResponse($url, $ssl) |
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98 | { |
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99 | 1 | $this->url = $url; |
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100 | |||
101 | 1 | return (new Guzzle())->request( |
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102 | 1 | 'GET', |
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103 | 1 | $this->url, |
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104 | 1 | $this->getConnectionOptions($ssl) |
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105 | ); |
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106 | } |
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107 | |||
108 | /** |
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109 | * Get http connection options. |
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110 | * |
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111 | * @param $ssl |
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112 | * @return array |
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113 | */ |
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114 | 1 | private function getConnectionOptions($ssl) |
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115 | { |
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116 | return [ |
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117 | 1 | 'connect_timeout' => $this->getConnectionTimeout(), |
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118 | 1 | 'timeout' => $this->getConnectionTimeout(), |
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119 | 1 | 'verify' => $ssl, |
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120 | 1 | 'on_stats' => $this->onStatsCallback(), |
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121 | ]; |
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122 | } |
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123 | |||
124 | /** |
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125 | * Get the error message. |
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126 | * |
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127 | * @return string |
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128 | */ |
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129 | private function getErrorMessage() |
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130 | { |
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131 | $message = $this->target->resource->timeoutMessage; |
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132 | |||
133 | return sprintf( |
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134 | $message, |
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135 | $this->url, |
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136 | $this->totalTime, |
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137 | $this->getRoundtripTimeout() |
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138 | ); |
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139 | } |
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140 | |||
141 | /** |
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142 | * The the connection timeout. |
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143 | * |
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144 | * @return int |
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145 | */ |
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146 | 1 | private function getConnectionTimeout() |
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147 | { |
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148 | 1 | return $this->target->resource->connectionTimeout; |
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149 | } |
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150 | |||
151 | /** |
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152 | * The the roundtrip timeout. |
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153 | * |
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154 | * @return int |
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155 | */ |
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156 | 1 | private function getRoundtripTimeout() |
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157 | { |
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158 | 1 | return $this->target->resource->roundtripTimeout; |
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159 | } |
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160 | |||
161 | /** |
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162 | * Make a url with a proper scheme. |
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163 | * |
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164 | * @param $url |
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165 | * @param $secure |
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166 | * @return mixed |
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167 | */ |
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168 | 1 | private function makeUrlWithScheme($url, $secure) |
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169 | { |
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170 | 1 | return preg_replace( |
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171 | 1 | '|^((https?:)?\/\/)?(.*)|', |
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172 | 1 | 'http'.($secure ? 's' : '').'://\\3', |
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173 | 1 | $url |
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174 | ); |
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175 | } |
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176 | |||
177 | /** |
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178 | * Guzzle OnStats callback. |
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179 | * |
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180 | * @return \Closure |
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181 | */ |
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182 | 1 | private function onStatsCallback() |
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183 | { |
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184 | return function (TransferStats $stats) { |
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185 | 1 | $this->totalTime = $stats->getTransferTime(); |
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186 | 1 | }; |
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187 | } |
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188 | |||
189 | /** |
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190 | * Send a request and get the result. |
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191 | * |
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192 | * @param $url |
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193 | * @param $ssl |
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194 | * @return bool |
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195 | * @internal param $response |
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196 | */ |
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197 | 1 | private function requestSuccessful($url, $ssl) |
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198 | { |
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199 | return |
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200 | 1 | $this->fetchResponse($url, $ssl)->getStatusCode() == 200 && |
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201 | 1 | ! $this->requestTimedout(); |
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202 | } |
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203 | |||
204 | /** |
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205 | * Check if the request timed out. |
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206 | * |
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207 | * @return bool |
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208 | */ |
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209 | 1 | private function requestTimedout() |
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210 | { |
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211 | 1 | return $this->totalTime > $this->getRoundtripTimeout(); |
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212 | } |
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213 | } |
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214 |
This check looks for variable assignements that are either overwritten by other assignments or where the variable is not used subsequently.
Both the
$myVar
assignment in line 1 and the$higher
assignment in line 2 are dead. The first because$myVar
is never used and the second because$higher
is always overwritten for every possible time line.