summaryrefslogtreecommitdiffstats
path: root/system/core/Exceptions.php
blob: 8c32085fe49d4f8de7eda22b0f3fada249e1be12 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
/**
 * CodeIgniter
 *
 * An open source application development framework for PHP 5.2.4 or newer
 *
 * NOTICE OF LICENSE
 *
 * Licensed under the Open Software License version 3.0
 *
 * This source file is subject to the Open Software License (OSL 3.0) that is
 * bundled with this package in the files license.txt / license.rst.  It is
 * also available through the world wide web at this URL:
 * http://opensource.org/licenses/OSL-3.0
 * If you did not receive a copy of the license and are unable to obtain it
 * through the world wide web, please send an email to
 * licensing@ellislab.com so we can send you a copy immediately.
 *
 * @package		CodeIgniter
 * @author		EllisLab Dev Team
 * @copyright	Copyright (c) 2008 - 2012, EllisLab, Inc. (http://ellislab.com/)
 * @license		http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
 * @link		http://codeigniter.com
 * @since		Version 1.0
 * @filesource
 */

/**
 * Exceptions Class
 *
 * @package		CodeIgniter
 * @subpackage	Libraries
 * @category	Exceptions
 * @author		EllisLab Dev Team
 * @link		http://codeigniter.com/user_guide/libraries/exceptions.html
 */
class CI_Exceptions {

	/**
	 * Nesting level of the output buffering mechanism
	 *
	 * @var	int
	 */
	public $ob_level;

	/**
	 * List if available error levels
	 *
	 * @var	array
	 */
	public $levels = array(
		E_ERROR			=>	'Error',
		E_WARNING		=>	'Warning',
		E_PARSE			=>	'Parsing Error',
		E_NOTICE		=>	'Notice',
		E_CORE_ERROR		=>	'Core Error',
		E_CORE_WARNING		=>	'Core Warning',
		E_COMPILE_ERROR		=>	'Compile Error',
		E_COMPILE_WARNING	=>	'Compile Warning',
		E_USER_ERROR		=>	'User Error',
		E_USER_WARNING		=>	'User Warning',
		E_USER_NOTICE		=>	'User Notice',
		E_STRICT		=>	'Runtime Notice'
	);

	/**
	 * Initialize execption class
	 *
	 * @return	void
	 */
	public function __construct()
	{
		$this->ob_level = ob_get_level();
		// Note: Do not log messages from this constructor.
	}

	// --------------------------------------------------------------------

	/**
	 * Exception Logger
	 *
	 * This function logs PHP generated error messages
	 *
	 * @param	string	the error severity
	 * @param	string	the error string
	 * @param	string	the error filepath
	 * @param	string	the error line number
	 * @return	void
	 */
	public function log_exception($severity, $message, $filepath, $line)
	{
		$severity = isset($this->levels[$severity]) ? $this->levels[$severity] : $severity;
		log_message('error', 'Severity: '.$severity.'  --> '.$message. ' '.$filepath.' '.$line, TRUE);
	}

	// --------------------------------------------------------------------

	/**
	 * 404 Page Not Found Handler
	 *
	 * @param	string	the page
	 * @param 	bool	log error yes/no
	 * @return	string
	 */
	public function show_404($page = '', $log_error = TRUE)
	{
		$heading = '404 Page Not Found';
		$message = 'The page you requested was not found.';

		// By default we log this, but allow a dev to skip it
		if ($log_error)
		{
			log_message('error', '404 Page Not Found --> '.$page);
		}

		echo $this->show_error($heading, $message, 'error_404', 404);
		exit;
	}

	// --------------------------------------------------------------------

	/**
	 * General Error Page
	 *
	 * This function takes an error message as input
	 * (either as a string or an array) and displays
	 * it using the specified template.
	 *
	 * @param	string	the heading
	 * @param	string	the message
	 * @param	string	the template name
	 * @param 	int	the status code
	 * @return	string
	 */
	public function show_error($heading, $message, $template = 'error_general', $status_code = 500)
	{
		set_status_header($status_code);

		$message = '<p>'.implode('</p><p>', is_array($message) ? $message : array($message)).'</p>';

		if (ob_get_level() > $this->ob_level + 1)
		{
			ob_end_flush();
		}
		ob_start();
		include(APPPATH.'views/errors/'.$template.'.php');
		$buffer = ob_get_contents();
		ob_end_clean();
		return $buffer;
	}

	// --------------------------------------------------------------------

	/**
	 * Native PHP error handler
	 *
	 * @param	string	the error severity
	 * @param	string	the error string
	 * @param	string	the error filepath
	 * @param	string	the error line number
	 * @return	string
	 */
	public function show_php_error($severity, $message, $filepath, $line)
	{
		$severity = isset($this->levels[$severity]) ? $this->levels[$severity] : $severity;
		$filepath = str_replace('\\', '/', $filepath);

		// For safety reasons we do not show the full file path
		if (FALSE !== strpos($filepath, '/'))
		{
			$x = explode('/', $filepath);
			$filepath = $x[count($x)-2].'/'.end($x);
		}

		if (ob_get_level() > $this->ob_level + 1)
		{
			ob_end_flush();
		}
		ob_start();
		include(APPPATH.'views/errors/error_php.php');
		$buffer = ob_get_contents();
		ob_end_clean();
		echo $buffer;
	}

}

/* End of file Exceptions.php */
/* Location: ./system/core/Exceptions.php */