1: <?php
 2: 
 3: /**
 4:  * This file is part of the Tracy (https://tracy.nette.org)
 5:  * Copyright (c) 2004 David Grudl (https://davidgrudl.com)
 6:  */
 7: 
 8: namespace Tracy;
 9: 
10: use Tracy;
11: 
12: 
13: /**
14:  * @author     David Grudl
15:  */
16: class OutputDebugger
17: {
18:     const BOM = "\xEF\xBB\xBF";
19: 
20:     /** @var array of [file, line, output, stack] */
21:     private $list = array();
22: 
23: 
24:     public static function enable()
25:     {
26:         $me = new static;
27:         $me->start();
28:     }
29: 
30: 
31:     public function start()
32:     {
33:         foreach (get_included_files() as $file) {
34:             if (fread(fopen($file, 'r'), 3) === self::BOM) {
35:                 $this->list[] = array($file, 1, self::BOM);
36:             }
37:         }
38:         ob_start(array($this, 'handler'), PHP_VERSION_ID >= 50400 ? 1 : 2);
39:     }
40: 
41: 
42:     /** @internal */
43:     public function handler($s, $phase)
44:     {
45:         $trace = debug_backtrace(PHP_VERSION_ID >= 50306 ? DEBUG_BACKTRACE_IGNORE_ARGS : FALSE);
46:         if (isset($trace[0]['file'], $trace[0]['line'])) {
47:             $stack = $trace;
48:             unset($stack[0]['line'], $stack[0]['args']);
49:             $i = count($this->list);
50:             if ($i && $this->list[$i - 1][3] === $stack) {
51:                 $this->list[$i - 1][2] .= $s;
52:             } else {
53:                 $this->list[] = array($trace[0]['file'], $trace[0]['line'], $s, $stack);
54:             }
55:         }
56:         if ($phase === PHP_OUTPUT_HANDLER_FINAL) {
57:             return $this->renderHtml();
58:         }
59:     }
60: 
61: 
62:     private function renderHtml()
63:     {
64:         $res = '<style>code, pre {white-space:nowrap} a {text-decoration:none} pre {color:gray;display:inline} big {color:red}</style><code>';
65:         foreach ($this->list as $item) {
66:             $stack = array();
67:             foreach (array_slice($item[3], 1) as $t) {
68:                 $t += array('class' => '', 'type' => '', 'function' => '');
69:                 $stack[] = "$t[class]$t[type]$t[function]()"
70:                     . (isset($t['file'], $t['line']) ? ' in ' . basename($t['file']) . ":$t[line]" : '');
71:             }
72: 
73:             $res .= Helpers::editorLink($item[0], $item[1]) . ' '
74:                 . '<span title="' . htmlspecialchars(implode("\n", $stack), ENT_IGNORE | ENT_QUOTES, 'UTF-8') . '">'
75:                 . str_replace(self::BOM, '<big>BOM</big>', Dumper::toHtml($item[2]))
76:                 . "</span><br>\n";
77:         }
78:         return $res . '</code>';
79:     }
80: 
81: }
82: