filp /
whoops
Complex classes like PrettyPageHandler 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 PrettyPageHandler, and based on these observations, apply Extract Interface, too.
| 1 | <?php |
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| 18 | class PrettyPageHandler extends Handler |
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| 19 | { |
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| 20 | /** |
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| 21 | * Search paths to be scanned for resources, in the reverse |
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| 22 | * order they're declared. |
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| 23 | * |
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| 24 | * @var array |
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| 25 | */ |
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| 26 | private $searchPaths = []; |
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| 27 | |||
| 28 | /** |
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| 29 | * Fast lookup cache for known resource locations. |
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| 30 | * |
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| 31 | * @var array |
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| 32 | */ |
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| 33 | private $resourceCache = []; |
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| 34 | |||
| 35 | /** |
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| 36 | * The name of the custom css file. |
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| 37 | * |
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| 38 | * @var string |
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| 39 | */ |
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| 40 | private $customCss = null; |
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| 41 | |||
| 42 | /** |
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| 43 | * @var array[] |
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| 44 | */ |
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| 45 | private $extraTables = []; |
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| 46 | |||
| 47 | /** |
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| 48 | * @var bool |
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| 49 | */ |
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| 50 | private $handleUnconditionally = false; |
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| 51 | |||
| 52 | /** |
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| 53 | * @var string |
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| 54 | */ |
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| 55 | private $pageTitle = "Whoops! There was an error."; |
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| 56 | |||
| 57 | /** |
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| 58 | * @var array[] |
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| 59 | */ |
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| 60 | private $applicationPaths; |
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| 61 | |||
| 62 | /** |
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| 63 | * @var array[] |
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| 64 | */ |
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| 65 | private $blacklist = [ |
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| 66 | '_GET' => [], |
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| 67 | '_POST' => [], |
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| 68 | '_FILES' => [], |
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| 69 | '_COOKIE' => [], |
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| 70 | '_SESSION' => [], |
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| 71 | '_SERVER' => [], |
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| 72 | '_ENV' => [], |
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| 73 | ]; |
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| 74 | |||
| 75 | /** |
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| 76 | * A string identifier for a known IDE/text editor, or a closure |
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| 77 | * that resolves a string that can be used to open a given file |
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| 78 | * in an editor. If the string contains the special substrings |
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| 79 | * %file or %line, they will be replaced with the correct data. |
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| 80 | * |
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| 81 | * @example |
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| 82 | * "txmt://open?url=%file&line=%line" |
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| 83 | * @var mixed $editor |
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| 84 | */ |
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| 85 | protected $editor; |
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| 86 | |||
| 87 | /** |
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| 88 | * A list of known editor strings |
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| 89 | * @var array |
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| 90 | */ |
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| 91 | protected $editors = [ |
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| 92 | "sublime" => "subl://open?url=file://%file&line=%line", |
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| 93 | "textmate" => "txmt://open?url=file://%file&line=%line", |
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| 94 | "emacs" => "emacs://open?url=file://%file&line=%line", |
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| 95 | "macvim" => "mvim://open/?url=file://%file&line=%line", |
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| 96 | "phpstorm" => "phpstorm://open?file=%file&line=%line", |
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| 97 | "idea" => "idea://open?file=%file&line=%line", |
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| 98 | "vscode" => "vscode://file/%file:%line", |
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| 99 | "atom" => "atom://core/open/file?filename=%file&line=%line", |
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| 100 | ]; |
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| 101 | |||
| 102 | /** |
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| 103 | * @var TemplateHelper |
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| 104 | */ |
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| 105 | private $templateHelper; |
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| 106 | |||
| 107 | /** |
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| 108 | * Constructor. |
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| 109 | */ |
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| 110 | 1 | public function __construct() |
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| 146 | |||
| 147 | /** |
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| 148 | * @return int|null |
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| 149 | */ |
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| 150 | 1 | public function handle() |
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| 256 | |||
| 257 | /** |
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| 258 | * Get the stack trace frames of the exception that is currently being handled. |
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| 259 | * |
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| 260 | * @return \Whoops\Exception\FrameCollection; |
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| 261 | */ |
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| 262 | protected function getExceptionFrames() |
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| 279 | |||
| 280 | /** |
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| 281 | * Get the code of the exception that is currently being handled. |
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| 282 | * |
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| 283 | * @return string |
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| 284 | */ |
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| 285 | protected function getExceptionCode() |
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| 297 | |||
| 298 | /** |
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| 299 | * @return string |
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| 300 | */ |
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| 301 | public function contentType() |
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| 305 | |||
| 306 | /** |
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| 307 | * Adds an entry to the list of tables displayed in the template. |
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| 308 | * The expected data is a simple associative array. Any nested arrays |
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| 309 | * will be flattened with print_r |
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| 310 | * @param string $label |
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| 311 | * @param array $data |
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| 312 | */ |
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| 313 | 1 | public function addDataTable($label, array $data) |
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| 317 | |||
| 318 | /** |
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| 319 | * Lazily adds an entry to the list of tables displayed in the table. |
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| 320 | * The supplied callback argument will be called when the error is rendered, |
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| 321 | * it should produce a simple associative array. Any nested arrays will |
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| 322 | * be flattened with print_r. |
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| 323 | * |
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| 324 | * @throws InvalidArgumentException If $callback is not callable |
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| 325 | * @param string $label |
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| 326 | * @param callable $callback Callable returning an associative array |
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| 327 | */ |
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| 328 | 1 | public function addDataTableCallback($label, /* callable */ $callback) |
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| 346 | |||
| 347 | /** |
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| 348 | * Returns all the extra data tables registered with this handler. |
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| 349 | * Optionally accepts a 'label' parameter, to only return the data |
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| 350 | * table under that label. |
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| 351 | * @param string|null $label |
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| 352 | * @return array[]|callable |
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| 353 | */ |
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| 354 | 2 | public function getDataTables($label = null) |
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| 363 | |||
| 364 | /** |
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| 365 | * Allows to disable all attempts to dynamically decide whether to |
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| 366 | * handle or return prematurely. |
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| 367 | * Set this to ensure that the handler will perform no matter what. |
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| 368 | * @param bool|null $value |
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| 369 | * @return bool|null |
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| 370 | */ |
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| 371 | 1 | public function handleUnconditionally($value = null) |
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| 379 | |||
| 380 | /** |
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| 381 | * Adds an editor resolver, identified by a string |
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| 382 | * name, and that may be a string path, or a callable |
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| 383 | * resolver. If the callable returns a string, it will |
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| 384 | * be set as the file reference's href attribute. |
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| 385 | * |
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| 386 | * @example |
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| 387 | * $run->addEditor('macvim', "mvim://open?url=file://%file&line=%line") |
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| 388 | * @example |
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| 389 | * $run->addEditor('remove-it', function($file, $line) { |
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| 390 | * unlink($file); |
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| 391 | * return "http://stackoverflow.com"; |
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| 392 | * }); |
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| 393 | * @param string $identifier |
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| 394 | * @param string $resolver |
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| 395 | */ |
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| 396 | 1 | public function addEditor($identifier, $resolver) |
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| 400 | |||
| 401 | /** |
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| 402 | * Set the editor to use to open referenced files, by a string |
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| 403 | * identifier, or a callable that will be executed for every |
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| 404 | * file reference, with a $file and $line argument, and should |
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| 405 | * return a string. |
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| 406 | * |
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| 407 | * @example |
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| 408 | * $run->setEditor(function($file, $line) { return "file:///{$file}"; }); |
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| 409 | * @example |
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| 410 | * $run->setEditor('sublime'); |
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| 411 | * |
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| 412 | * @throws InvalidArgumentException If invalid argument identifier provided |
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| 413 | * @param string|callable $editor |
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| 414 | */ |
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| 415 | 4 | public function setEditor($editor) |
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| 426 | |||
| 427 | /** |
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| 428 | * Given a string file path, and an integer file line, |
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| 429 | * executes the editor resolver and returns, if available, |
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| 430 | * a string that may be used as the href property for that |
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| 431 | * file reference. |
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| 432 | * |
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| 433 | * @throws InvalidArgumentException If editor resolver does not return a string |
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| 434 | * @param string $filePath |
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| 435 | * @param int $line |
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| 436 | * @return string|bool |
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| 437 | */ |
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| 438 | 4 | public function getEditorHref($filePath, $line) |
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| 459 | |||
| 460 | /** |
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| 461 | * Given a boolean if the editor link should |
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| 462 | * act as an Ajax request. The editor must be a |
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| 463 | * valid callable function/closure |
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| 464 | * |
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| 465 | * @throws UnexpectedValueException If editor resolver does not return a boolean |
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| 466 | * @param string $filePath |
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| 467 | * @param int $line |
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| 468 | * @return bool |
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| 469 | */ |
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| 470 | 1 | public function getEditorAjax($filePath, $line) |
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| 482 | |||
| 483 | /** |
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| 484 | * Given a boolean if the editor link should |
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| 485 | * act as an Ajax request. The editor must be a |
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| 486 | * valid callable function/closure |
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| 487 | * |
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| 488 | * @param string $filePath |
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| 489 | * @param int $line |
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| 490 | * @return array |
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| 491 | */ |
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| 492 | 1 | protected function getEditor($filePath, $line) |
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| 531 | |||
| 532 | /** |
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| 533 | * @param string $title |
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| 534 | * @return void |
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| 535 | */ |
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| 536 | 1 | public function setPageTitle($title) |
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| 540 | |||
| 541 | /** |
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| 542 | * @return string |
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| 543 | */ |
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| 544 | 1 | public function getPageTitle() |
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| 548 | |||
| 549 | /** |
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| 550 | * Adds a path to the list of paths to be searched for |
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| 551 | * resources. |
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| 552 | * |
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| 553 | * @throws InvalidArgumentException If $path is not a valid directory |
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| 554 | * |
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| 555 | * @param string $path |
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| 556 | * @return void |
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| 557 | */ |
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| 558 | 2 | public function addResourcePath($path) |
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| 568 | |||
| 569 | /** |
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| 570 | * Adds a custom css file to be loaded. |
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| 571 | * |
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| 572 | * @param string $name |
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| 573 | * @return void |
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| 574 | */ |
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| 575 | public function addCustomCss($name) |
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| 579 | |||
| 580 | /** |
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| 581 | * @return array |
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| 582 | */ |
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| 583 | 1 | public function getResourcePaths() |
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| 587 | |||
| 588 | /** |
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| 589 | * Finds a resource, by its relative path, in all available search paths. |
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| 590 | * The search is performed starting at the last search path, and all the |
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| 591 | * way back to the first, enabling a cascading-type system of overrides |
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| 592 | * for all resources. |
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| 593 | * |
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| 594 | * @throws RuntimeException If resource cannot be found in any of the available paths |
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| 595 | * |
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| 596 | * @param string $resource |
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| 597 | * @return string |
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| 598 | */ |
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| 599 | protected function getResource($resource) |
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| 625 | |||
| 626 | /** |
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| 627 | * @deprecated |
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| 628 | * |
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| 629 | * @return string |
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| 630 | */ |
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| 631 | public function getResourcesPath() |
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| 638 | |||
| 639 | /** |
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| 640 | * @deprecated |
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| 641 | * |
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| 642 | * @param string $resourcesPath |
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| 643 | * @return void |
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| 644 | */ |
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| 645 | public function setResourcesPath($resourcesPath) |
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| 649 | |||
| 650 | /** |
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| 651 | * Return the application paths. |
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| 652 | * |
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| 653 | * @return array |
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| 654 | */ |
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| 655 | public function getApplicationPaths() |
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| 659 | |||
| 660 | /** |
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| 661 | * Set the application paths. |
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| 662 | * |
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| 663 | * @param array $applicationPaths |
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| 664 | */ |
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| 665 | public function setApplicationPaths($applicationPaths) |
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| 669 | |||
| 670 | /** |
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| 671 | * Set the application root path. |
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| 672 | * |
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| 673 | * @param string $applicationRootPath |
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| 674 | */ |
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| 675 | public function setApplicationRootPath($applicationRootPath) |
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| 679 | |||
| 680 | /** |
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| 681 | * blacklist a sensitive value within one of the superglobal arrays. |
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| 682 | * |
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| 683 | * @param $superGlobalName string the name of the superglobal array, e.g. '_GET' |
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| 684 | * @param $key string the key within the superglobal |
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| 685 | */ |
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| 686 | 1 | public function blacklist($superGlobalName, $key) |
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| 690 | |||
| 691 | /** |
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| 692 | * Checks all values within the given superGlobal array. |
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| 693 | * Blacklisted values will be replaced by a equal length string cointaining only '*' characters. |
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| 694 | * |
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| 695 | * We intentionally dont rely on $GLOBALS as it depends on 'auto_globals_jit' php.ini setting. |
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| 696 | * |
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| 697 | * @param $superGlobal array One of the superglobal arrays |
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| 698 | * @param $superGlobalName string the name of the superglobal array, e.g. '_GET' |
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| 699 | * @return array $values without sensitive data |
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| 700 | */ |
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| 701 | private function masked(array $superGlobal, $superGlobalName) |
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| 715 | |||
| 716 | /** |
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| 717 | * Check if a value matches a pattern. |
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| 718 | * |
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| 719 | * Based on Laravel's \Illuminate\Support\Str::is() method. |
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| 720 | * Copyright (c) Taylor Otwell |
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| 721 | * |
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| 722 | * @param $pattern |
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| 723 | * @param $value |
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| 724 | * @return bool |
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| 725 | */ |
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| 726 | private function matchesPattern($pattern, $value) |
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| 748 | } |
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| 749 |
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This check looks from parameters that have been defined for a function or method, but which are not used in the method body.