Completed
Pull Request — v1 (#422)
by
unknown
03:17
created

PrettyPageHandler::addDataTable()   A

Complexity

Conditions 1
Paths 1

Size

Total Lines 4
Code Lines 2

Duplication

Lines 0
Ratio 0 %

Code Coverage

Tests 3
CRAP Score 1

Importance

Changes 0
Metric Value
dl 0
loc 4
c 0
b 0
f 0
ccs 3
cts 3
cp 1
rs 10
cc 1
eloc 2
nc 1
nop 2
crap 1
1
<?php
2
/**
3
 * Whoops - php errors for cool kids
4
 * @author Filipe Dobreira <http://github.com/filp>
5
 */
6
7
namespace Whoops\Handler;
8
9
use InvalidArgumentException;
10
use RuntimeException;
11
use UnexpectedValueException;
12
use Whoops\Exception\Formatter;
13
use Whoops\Util\Misc;
14
use Whoops\Util\TemplateHelper;
15
16
class PrettyPageHandler extends Handler
17
{
18
    /**
19
     * Search paths to be scanned for resources, in the reverse
20
     * order they're declared.
21
     *
22
     * @var array
23
     */
24
    private $searchPaths = array();
25
26
    /**
27
     * Fast lookup cache for known resource locations.
28
     *
29
     * @var array
30
     */
31
    private $resourceCache = array();
32
33
    /**
34
     * The name of the custom css file.
35
     *
36
     * @var string
37
     */
38
    private $customCss = null;
39
40
    /**
41
     * @var array[]
42
     */
43
    private $extraTables = array();
44
45
    /**
46
     * @var bool
47
     */
48
    private $handleUnconditionally = false;
49
50
    /**
51
     * @var string
52
     */
53
    private $pageTitle = "Whoops! There was an error.";
54
55
    /**
56
     * A string identifier for a known IDE/text editor, or a closure
57
     * that resolves a string that can be used to open a given file
58
     * in an editor. If the string contains the special substrings
59
     * %file or %line, they will be replaced with the correct data.
60
     *
61
     * @example
62
     *  "txmt://open?url=%file&line=%line"
63
     * @var mixed $editor
64
     */
65
    protected $editor;
66
67
    /**
68
     * A list of known editor strings
69
     * @var array
70
     */
71
    protected $editors = array(
72
        "sublime"  => "subl://open?url=file://%file&line=%line",
73
        "textmate" => "txmt://open?url=file://%file&line=%line",
74
        "emacs"    => "emacs://open?url=file://%file&line=%line",
75
        "macvim"   => "mvim://open/?url=file://%file&line=%line",
76
        "phpstorm" => "phpstorm://open?file=%file&line=%line",
77
    );
78
79
    /**
80
     * Constructor.
81
     */
82 1
    public function __construct()
83
    {
84 1
        if (ini_get('xdebug.file_link_format') || extension_loaded('xdebug')) {
85
            // Register editor using xdebug's file_link_format option.
86
            $this->editors['xdebug'] = function ($file, $line) {
87 1
                return str_replace(array('%f', '%l'), array($file, $line), ini_get('xdebug.file_link_format'));
88
            };
89 1
        }
90
91
        // Add the default, local resource search path:
92 1
        $this->searchPaths[] = __DIR__ . "/../Resources";
93 1
    }
94
95
    /**
96
     * @return int|null
97
     */
98 1
    public function handle()
99
    {
100 1
        if (!$this->handleUnconditionally()) {
0 ignored issues
show
Bug Best Practice introduced by
The expression $this->handleUnconditionally() of type boolean|null is loosely compared to false; this is ambiguous if the boolean can be false. You might want to explicitly use !== null instead.

If an expression can have both false, and null as possible values. It is generally a good practice to always use strict comparison to clearly distinguish between those two values.

$a = canBeFalseAndNull();

// Instead of
if ( ! $a) { }

// Better use one of the explicit versions:
if ($a !== null) { }
if ($a !== false) { }
if ($a !== null && $a !== false) { }
Loading history...
101
            // Check conditions for outputting HTML:
102
            // @todo: Make this more robust
103 1
            if (php_sapi_name() === 'cli') {
104
                // Help users who have been relying on an internal test value
105
                // fix their code to the proper method
106 1
                if (isset($_ENV['whoops-test'])) {
107
                    throw new \Exception(
108
                        'Use handleUnconditionally instead of whoops-test'
109
                        .' environment variable'
110
                    );
111
                }
112
113 1
                return Handler::DONE;
114
            }
115
        }
116
117
        // @todo: Make this more dynamic
118
        $helper = new TemplateHelper();
119
120
        $templateFile = $this->getResource("views/layout.html.php");
121
        $cssFile      = $this->getResource("css/whoops.base.css");
122
        $zeptoFile    = $this->getResource("js/zepto.min.js");
123
        $jsFile       = $this->getResource("js/whoops.base.js");
124
125
        if ($this->customCss) {
126
            $customCssFile = $this->getResource($this->customCss);
127
        }
128
129
        $inspector = $this->getInspector();
130
        $frames    = $inspector->getFrames();
131
132
        $code = $inspector->getException()->getCode();
133
134
        if ($inspector->getException() instanceof \ErrorException) {
135
            // ErrorExceptions wrap the php-error types within the "severity" property
136
            $code = Misc::translateErrorCode($inspector->getException()->getSeverity());
137
        }
138
139
        // List of variables that will be passed to the layout template.
140
        $vars = array(
141
            "page_title" => $this->getPageTitle(),
142
143
            // @todo: Asset compiler
144
            "stylesheet" => file_get_contents($cssFile),
145
            "zepto"      => file_get_contents($zeptoFile),
146
            "javascript" => file_get_contents($jsFile),
147
148
            // Template paths:
149
            "header"      => $this->getResource("views/header.html.php"),
150
            "frame_list"  => $this->getResource("views/frame_list.html.php"),
151
            "frame_code"  => $this->getResource("views/frame_code.html.php"),
152
            "env_details" => $this->getResource("views/env_details.html.php"),
153
154
            "title"          => $this->getPageTitle(),
155
            "name"           => explode("\\", $inspector->getExceptionName()),
156
            "message"        => $inspector->getException()->getMessage(),
157
            "code"           => $code,
158
            "plain_exception" => Formatter::formatExceptionPlain($inspector),
159
            "frames"         => $frames,
160
            "has_frames"     => !!count($frames),
161
            "handler"        => $this,
162
            "handlers"       => $this->getRun()->getHandlers(),
163
164
            "tables"      => array(
165
                "GET Data"              => $_GET,
166
                "POST Data"             => $_POST,
167
                "Files"                 => $_FILES,
168
                "Cookies"               => $_COOKIE,
169
                "Session"               => isset($_SESSION) ? $_SESSION :  array(),
170
                "Server/Request Data"   => $_SERVER,
171
                "Environment Variables" => $_ENV,
172
            ),
173
        );
174
175
        if (isset($customCssFile)) {
176
            $vars["stylesheet"] .= file_get_contents($customCssFile);
177
        }
178
179
        // Add extra entries list of data tables:
180
        // @todo: Consolidate addDataTable and addDataTableCallback
181
        $extraTables = array_map(function ($table) {
182
            return $table instanceof \Closure ? $table() : $table;
183
        }, $this->getDataTables());
184
        $vars["tables"] = array_merge($extraTables, $vars["tables"]);
185
186
        $helper->setVariables($vars);
187
        $helper->render($templateFile);
188
189
        return Handler::QUIT;
190
    }
191
192
    /**
193
     * Adds an entry to the list of tables displayed in the template.
194
     * The expected data is a simple associative array. Any nested arrays
195
     * will be flattened with print_r
196
     * @param string $label
197
     * @param array  $data
198
     */
199 1
    public function addDataTable($label, array $data)
200
    {
201 1
        $this->extraTables[$label] = $data;
202 1
    }
203
204
    /**
205
     * Lazily adds an entry to the list of tables displayed in the table.
206
     * The supplied callback argument will be called when the error is rendered,
207
     * it should produce a simple associative array. Any nested arrays will
208
     * be flattened with print_r.
209
     *
210
     * @throws InvalidArgumentException If $callback is not callable
211
     * @param  string                   $label
212
     * @param  callable                 $callback Callable returning an associative array
213
     */
214 1
    public function addDataTableCallback($label, /* callable */ $callback)
215
    {
216 1
        if (!is_callable($callback)) {
217
            throw new InvalidArgumentException('Expecting callback argument to be callable');
218
        }
219
220 1
        $this->extraTables[$label] = function () use ($callback) {
221
            try {
222 1
                $result = call_user_func($callback);
223
224
                // Only return the result if it can be iterated over by foreach().
225 1
                return is_array($result) || $result instanceof \Traversable ? $result : array();
226
            } catch (\Exception $e) {
227
                // Don't allow failure to break the rendering of the original exception.
228
                return array();
229
            }
230
        };
231 1
    }
232
233
    /**
234
     * Returns all the extra data tables registered with this handler.
235
     * Optionally accepts a 'label' parameter, to only return the data
236
     * table under that label.
237
     * @param  string|null      $label
238
     * @return array[]|callable
239
     */
240 2
    public function getDataTables($label = null)
241
    {
242 2
        if ($label !== null) {
243 2
            return isset($this->extraTables[$label]) ?
244 2
                   $this->extraTables[$label] : array();
245
        }
246
247 2
        return $this->extraTables;
248
    }
249
250
    /**
251
     * Allows to disable all attempts to dynamically decide whether to
252
     * handle or return prematurely.
253
     * Set this to ensure that the handler will perform no matter what.
254
     * @param  bool|null $value
255
     * @return bool|null
256
     */
257 1
    public function handleUnconditionally($value = null)
258
    {
259 1
        if (func_num_args() == 0) {
260 1
            return $this->handleUnconditionally;
261
        }
262
263
        $this->handleUnconditionally = (bool) $value;
264
    }
265
266
    /**
267
     * Adds an editor resolver, identified by a string
268
     * name, and that may be a string path, or a callable
269
     * resolver. If the callable returns a string, it will
270
     * be set as the file reference's href attribute.
271
     *
272
     * @example
273
     *  $run->addEditor('macvim', "mvim://open?url=file://%file&line=%line")
274
     * @example
275
     *   $run->addEditor('remove-it', function($file, $line) {
276
     *       unlink($file);
277
     *       return "http://stackoverflow.com";
278
     *   });
279
     * @param string $identifier
280
     * @param string $resolver
281
     */
282 1
    public function addEditor($identifier, $resolver)
283
    {
284 1
        $this->editors[$identifier] = $resolver;
285 1
    }
286
287
    /**
288
     * Set the editor to use to open referenced files, by a string
289
     * identifier, or a callable that will be executed for every
290
     * file reference, with a $file and $line argument, and should
291
     * return a string.
292
     *
293
     * @example
294
     *   $run->setEditor(function($file, $line) { return "file:///{$file}"; });
295
     * @example
296
     *   $run->setEditor('sublime');
297
     *
298
     * @throws InvalidArgumentException If invalid argument identifier provided
299
     * @param  string|callable          $editor
300
     */
301 4
    public function setEditor($editor)
302
    {
303 4
        if (!is_callable($editor) && !isset($this->editors[$editor])) {
304
            throw new InvalidArgumentException(
305
                "Unknown editor identifier: $editor. Known editors:" .
306
                implode(",", array_keys($this->editors))
307
            );
308
        }
309
310 4
        $this->editor = $editor;
311 4
    }
312
313
    /**
314
     * Given a string file path, and an integer file line,
315
     * executes the editor resolver and returns, if available,
316
     * a string that may be used as the href property for that
317
     * file reference.
318
     *
319
     * @throws InvalidArgumentException If editor resolver does not return a string
320
     * @param  string                   $filePath
321
     * @param  int                      $line
322
     * @return string|bool
323
     */
324 4
    public function getEditorHref($filePath, $line)
325
    {
326 4
        $editor = $this->getEditor($filePath, $line);
327
328 4
        if (!$editor) {
329
            return false;
330
        }
331
332
        // Check that the editor is a string, and replace the
333
        // %line and %file placeholders:
334 4
        if (!isset($editor['url']) || !is_string($editor['url'])) {
335
            throw new UnexpectedValueException(
336
                __METHOD__ . " should always resolve to a string or a valid editor array; got something else instead."
337
            );
338
        }
339
340 4
        $editor['url'] = str_replace("%line", rawurlencode($line), $editor['url']);
341 4
        $editor['url'] = str_replace("%file", rawurlencode($filePath), $editor['url']);
342
343 4
        return $editor['url'];
344
    }
345
346
    /**
347
     * Given a boolean if the editor link should
348
     * act as an Ajax request. The editor must be a
349
     * valid callable function/closure
350
     *
351
     * @throws UnexpectedValueException  If editor resolver does not return a boolean
352
     * @param  string                   $filePath
353
     * @param  int                      $line
354
     * @return bool
355
     */
356 1
    public function getEditorAjax($filePath, $line)
357
    {
358 1
        $editor = $this->getEditor($filePath, $line);
359
360
        // Check that the ajax is a bool
361 1
        if (!isset($editor['ajax']) || !is_bool($editor['ajax'])) {
362
            throw new UnexpectedValueException(
363
                __METHOD__ . " should always resolve to a bool; got something else instead."
364
            );
365
        }
366 1
        return $editor['ajax'];
367
    }
368
369
    /**
370
     * Given a boolean if the editor link should
371
     * act as an Ajax request. The editor must be a
372
     * valid callable function/closure
373
     *
374
     * @throws UnexpectedValueException  If editor resolver does not return a boolean
375
     * @param  string                   $filePath
376
     * @param  int                      $line
377
     * @return mixed
378
     */
379 1
    protected function getEditor($filePath, $line)
380
    {
381 1
        if ($this->editor === null && !is_string($this->editor) && !is_callable($this->editor))
382 1
        {
383
            return false;
384
        }
385 1
        else if(is_string($this->editor) && isset($this->editors[$this->editor]) && !is_callable($this->editors[$this->editor]))
386 1
        {
387
           return array(
388
                'ajax' => false,
389
                'url' => $this->editors[$this->editor],
390
            );
391
        }
392 1
        else if(is_callable($this->editor) || (isset($this->editors[$this->editor]) && is_callable($this->editors[$this->editor])))
393 1
        {
394 1
            if(is_callable($this->editor))
395 1
            {
396
                $callback = call_user_func($this->editor, $filePath, $line);
397
            }
398
            else
399
            {
400 1
                $callback = call_user_func($this->editors[$this->editor], $filePath, $line);
401
            }
402
403
            return array(
404 1
                'ajax' => isset($callback['ajax']) ? $callback['ajax'] : false,
405 1
                'url' => (is_array($callback) ? $callback['url'] : $callback),
406 1
            );
407
        }
408
409
        return false;
410
    }
411
412
    /**
413
     * @param  string $title
414
     * @return void
415
     */
416 1
    public function setPageTitle($title)
417
    {
418 1
        $this->pageTitle = (string) $title;
419 1
    }
420
421
    /**
422
     * @return string
423
     */
424 1
    public function getPageTitle()
425
    {
426 1
        return $this->pageTitle;
427
    }
428
429
    /**
430
     * Adds a path to the list of paths to be searched for
431
     * resources.
432
     *
433
     * @throws InvalidArgumnetException If $path is not a valid directory
434
     *
435
     * @param  string $path
436
     * @return void
437
     */
438 2
    public function addResourcePath($path)
439
    {
440 2
        if (!is_dir($path)) {
441 1
            throw new InvalidArgumentException(
442 1
                "'$path' is not a valid directory"
443 1
            );
444
        }
445
446 1
        array_unshift($this->searchPaths, $path);
447 1
    }
448
449
    /**
450
     * Adds a custom css file to be loaded.
451
     *
452
     * @param  string $name
453
     * @return void
454
     */
455
    public function addCustomCss($name)
456
    {
457
        $this->customCss = $name;
458
    }
459
460
    /**
461
     * @return array
462
     */
463 1
    public function getResourcePaths()
464
    {
465 1
        return $this->searchPaths;
466
    }
467
468
    /**
469
     * Finds a resource, by its relative path, in all available search paths.
470
     * The search is performed starting at the last search path, and all the
471
     * way back to the first, enabling a cascading-type system of overrides
472
     * for all resources.
473
     *
474
     * @throws RuntimeException If resource cannot be found in any of the available paths
475
     *
476
     * @param  string $resource
477
     * @return string
478
     */
479
    protected function getResource($resource)
480
    {
481
        // If the resource was found before, we can speed things up
482
        // by caching its absolute, resolved path:
483
        if (isset($this->resourceCache[$resource])) {
484
            return $this->resourceCache[$resource];
485
        }
486
487
        // Search through available search paths, until we find the
488
        // resource we're after:
489
        foreach ($this->searchPaths as $path) {
490
            $fullPath = $path . "/$resource";
491
492
            if (is_file($fullPath)) {
493
                // Cache the result:
494
                $this->resourceCache[$resource] = $fullPath;
495
                return $fullPath;
496
            }
497
        }
498
499
        // If we got this far, nothing was found.
500
        throw new RuntimeException(
501
            "Could not find resource '$resource' in any resource paths."
502
            . "(searched: " . join(", ", $this->searchPaths). ")"
503
        );
504
    }
505
506
    /**
507
     * @deprecated
508
     *
509
     * @return string
510
     */
511
    public function getResourcesPath()
512
    {
513
        $allPaths = $this->getResourcePaths();
514
515
        // Compat: return only the first path added
516
        return end($allPaths) ?: null;
517
    }
518
519
    /**
520
     * @deprecated
521
     *
522
     * @param  string $resourcesPath
523
     * @return void
524
     */
525
    public function setResourcesPath($resourcesPath)
526
    {
527
        $this->addResourcePath($resourcesPath);
528
    }
529
}
530