Complex classes like TwitterOAuth often do a lot of different things. To break such a class down, we need to identify a cohesive component within that class. A common approach to find such a component is to look for fields/methods that share the same prefixes, or suffixes. You can also have a look at the cohesion graph to spot any un-connected, or weakly-connected components.
Once you have determined the fields that belong together, you can apply the Extract Class refactoring. If the component makes sense as a sub-class, Extract Subclass is also a candidate, and is often faster.
While breaking up the class, it is a good idea to analyze how other classes use TwitterOAuth, and based on these observations, apply Extract Interface, too.
| 1 | <?php |
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| 16 | class TwitterOAuth extends Config |
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| 17 | { |
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| 18 | const API_VERSION = '1.1'; |
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| 19 | const API_HOST = 'https://api.twitter.com'; |
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| 20 | const UPLOAD_HOST = 'https://upload.twitter.com'; |
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| 21 | |||
| 22 | /** @var Response details about the result of the last request */ |
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| 23 | private $response; |
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| 24 | /** @var string|null Application bearer token */ |
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| 25 | private $bearer; |
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| 26 | /** @var Consumer Twitter application details */ |
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| 27 | private $consumer; |
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| 28 | /** @var Token|null User access token details */ |
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| 29 | private $token; |
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| 30 | /** @var HmacSha1 OAuth 1 signature type used by Twitter */ |
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| 31 | private $signatureMethod; |
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| 32 | |||
| 33 | /** |
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| 34 | * Constructor |
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| 35 | * |
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| 36 | * @param string $consumerKey The Application Consumer Key |
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| 37 | * @param string $consumerSecret The Application Consumer Secret |
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| 38 | * @param string|null $oauthToken The Client Token (optional) |
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| 39 | * @param string|null $oauthTokenSecret The Client Token Secret (optional) |
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| 40 | */ |
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| 41 | public function __construct($consumerKey, $consumerSecret, $oauthToken = null, $oauthTokenSecret = null) |
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| 53 | |||
| 54 | /** |
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| 55 | * @param string $oauthToken |
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| 56 | * @param string $oauthTokenSecret |
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| 57 | */ |
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| 58 | public function setOauthToken($oauthToken, $oauthTokenSecret) |
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| 62 | |||
| 63 | /** |
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| 64 | * @return string|null |
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| 65 | */ |
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| 66 | public function getLastApiPath() |
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| 70 | |||
| 71 | /** |
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| 72 | * @return int |
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| 73 | */ |
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| 74 | public function getLastHttpCode() |
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| 78 | |||
| 79 | /** |
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| 80 | * @return array |
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| 81 | */ |
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| 82 | public function getLastXHeaders() |
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| 86 | |||
| 87 | /** |
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| 88 | * @return array|object|null |
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| 89 | */ |
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| 90 | public function getLastBody() |
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| 94 | |||
| 95 | /** |
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| 96 | * Resets the last response cache. |
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| 97 | */ |
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| 98 | public function resetLastResponse() |
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| 102 | |||
| 103 | /** |
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| 104 | * Make URLs for user browser navigation. |
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| 105 | * |
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| 106 | * @param string $path |
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| 107 | * @param array $parameters |
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| 108 | * |
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| 109 | * @return string |
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| 110 | */ |
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| 111 | public function url($path, array $parameters) |
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| 118 | |||
| 119 | /** |
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| 120 | * Make /oauth/* requests to the API. |
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| 121 | * |
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| 122 | * @param string $path |
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| 123 | * @param array $parameters |
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| 124 | * |
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| 125 | * @return array |
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| 126 | * @throws TwitterOAuthException |
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| 127 | */ |
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| 128 | public function oauth($path, array $parameters = []) |
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| 145 | |||
| 146 | /** |
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| 147 | * Make /oauth2/* requests to the API. |
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| 148 | * |
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| 149 | * @param string $path |
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| 150 | * @param array $parameters |
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| 151 | * |
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| 152 | * @return array|object |
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| 153 | */ |
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| 154 | public function oauth2($path, array $parameters = []) |
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| 167 | |||
| 168 | /** |
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| 169 | * Make GET requests to the API. |
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| 170 | * |
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| 171 | * @param string $path |
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| 172 | * @param array $parameters |
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| 173 | * |
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| 174 | * @return array|object |
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| 175 | */ |
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| 176 | public function get($path, array $parameters = []) |
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| 180 | |||
| 181 | /** |
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| 182 | * Make POST requests to the API. |
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| 183 | * |
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| 184 | * @param string $path |
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| 185 | * @param array $parameters |
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| 186 | * |
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| 187 | * @return array|object |
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| 188 | */ |
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| 189 | public function post($path, array $parameters = []) |
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| 193 | |||
| 194 | /** |
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| 195 | * Make DELETE requests to the API. |
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| 196 | * |
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| 197 | * @param string $path |
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| 198 | * @param array $parameters |
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| 199 | * |
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| 200 | * @return array|object |
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| 201 | */ |
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| 202 | public function delete($path, array $parameters = []) |
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| 206 | |||
| 207 | /** |
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| 208 | * Make PUT requests to the API. |
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| 209 | * |
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| 210 | * @param string $path |
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| 211 | * @param array $parameters |
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| 212 | * |
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| 213 | * @return array|object |
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| 214 | */ |
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| 215 | public function put($path, array $parameters = []) |
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| 219 | |||
| 220 | /** |
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| 221 | * Upload media to upload.twitter.com. |
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| 222 | * |
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| 223 | * @param string $path |
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| 224 | * @param array $parameters |
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| 225 | * @param boolean $chunked |
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| 226 | * |
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| 227 | * @return array|object |
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| 228 | */ |
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| 229 | public function upload($path, array $parameters = [], $chunked = false) |
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| 237 | |||
| 238 | /** |
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| 239 | * Private method to upload media (not chunked) to upload.twitter.com. |
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| 240 | * |
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| 241 | * @param string $path |
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| 242 | * @param array $parameters |
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| 243 | * |
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| 244 | * @return array|object |
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| 245 | */ |
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| 246 | private function uploadMediaNotChunked($path, array $parameters) |
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| 253 | |||
| 254 | /** |
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| 255 | * Private method to upload media (chunked) to upload.twitter.com. |
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| 256 | * |
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| 257 | * @param string $path |
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| 258 | * @param array $parameters |
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| 259 | * |
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| 260 | * @return array|object |
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| 261 | */ |
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| 262 | private function uploadMediaChunked($path, array $parameters) |
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| 285 | |||
| 286 | /** |
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| 287 | * Private method to get params for upload media chunked init. |
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| 288 | * Twitter docs: https://dev.twitter.com/rest/reference/post/media/upload-init.html |
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| 289 | * |
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| 290 | * @param array $parameters |
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| 291 | * |
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| 292 | * @return array |
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| 293 | */ |
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| 294 | private function mediaInitParameters(array $parameters) |
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| 309 | |||
| 310 | /** |
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| 311 | * @param string $method |
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| 312 | * @param string $host |
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| 313 | * @param string $path |
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| 314 | * @param array $parameters |
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| 315 | * |
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| 316 | * @return array|object |
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| 317 | */ |
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| 318 | private function http($method, $host, $path, array $parameters) |
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| 328 | |||
| 329 | /** |
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| 330 | * Format and sign an OAuth / API request |
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| 331 | * |
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| 332 | * @param string $url |
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| 333 | * @param string $method |
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| 334 | * @param array $parameters |
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| 335 | * |
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| 336 | * @return string |
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| 337 | * @throws TwitterOAuthException |
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| 338 | */ |
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| 339 | private function oAuthRequest($url, $method, array $parameters) |
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| 359 | |||
| 360 | /** |
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| 361 | * Set Curl options. |
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| 362 | * |
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| 363 | * @return array |
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| 364 | */ |
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| 365 | private function curlOptions() |
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| 396 | |||
| 397 | /** |
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| 398 | * Make an HTTP request |
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| 399 | * |
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| 400 | * @param string $url |
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| 401 | * @param string $method |
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| 402 | * @param string $authorization |
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| 403 | * @param array $postfields |
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| 404 | * |
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| 405 | * @return string |
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| 406 | * @throws TwitterOAuthException |
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| 407 | */ |
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| 408 | private function request($url, $method, $authorization, array $postfields) |
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| 453 | |||
| 454 | /** |
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| 455 | * Get the header info to store. |
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| 456 | * |
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| 457 | * @param string $header |
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| 458 | * |
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| 459 | * @return array |
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| 460 | */ |
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| 461 | private function parseHeaders($header) |
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| 473 | |||
| 474 | /** |
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| 475 | * Encode application authorization header with base64. |
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| 476 | * |
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| 477 | * @param Consumer $consumer |
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| 478 | * |
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| 479 | * @return string |
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| 480 | */ |
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| 481 | private function encodeAppAuthorization(Consumer $consumer) |
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| 487 | |||
| 488 | /** |
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| 489 | * Is the code running from a Phar module. |
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| 490 | * |
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| 491 | * @return boolean |
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| 492 | */ |
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| 493 | private function pharRunning() |
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| 497 | |||
| 498 | /** |
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| 499 | * Use included CA file instead of OS provided list. |
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| 500 | * |
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| 501 | * @return boolean |
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| 502 | */ |
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| 503 | private function useCAFile() |
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| 508 | } |
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| 509 |
If a method or function can return multiple different values and unless you are sure that you only can receive a single value in this context, we recommend to add an additional type check:
If this a common case that PHP Analyzer should handle natively, please let us know by opening an issue.