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
|
<?php
/*
* This file is part of the Monolog package.
*
* (c) Jordi Boggiano <j.boggiano@seld.be>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Monolog\Handler;
use Monolog\Logger;
/**
* Stores to any stream resource
*
* Can be used to store into php://stderr, remote and local files, etc.
*
* @author Jordi Boggiano <j.boggiano@seld.be>
*/
class StreamHandler extends AbstractProcessingHandler
{
protected $stream;
protected $url;
private $errorMessage;
protected $filePermission;
protected $useLocking;
private $dirCreated;
/**
* @param resource|string $stream
* @param int $level The minimum logging level at which this handler will be triggered
* @param Boolean $bubble Whether the messages that are handled can bubble up the stack or not
* @param int|null $filePermission Optional file permissions (default (0644) are only for owner read/write)
* @param Boolean $useLocking Try to lock log file before doing any writes
*
* @throws \Exception If a missing directory is not buildable
* @throws \InvalidArgumentException If stream is not a resource or string
*/
public function __construct($stream, $level = Logger::DEBUG, $bubble = true, $filePermission = null, $useLocking = false)
{
parent::__construct($level, $bubble);
if (is_resource($stream)) {
$this->stream = $stream;
} elseif (is_string($stream)) {
$this->url = $stream;
} else {
throw new \InvalidArgumentException('A stream must either be a resource or a string.');
}
$this->filePermission = $filePermission;
$this->useLocking = $useLocking;
}
/**
* {@inheritdoc}
*/
public function close()
{
if ($this->url && is_resource($this->stream)) {
fclose($this->stream);
}
$this->stream = null;
}
/**
* Return the currently active stream if it is open
*
* @return resource|null
*/
public function getStream()
{
return $this->stream;
}
/**
* Return the stream URL if it was configured with a URL and not an active resource
*
* @return string|null
*/
public function getUrl()
{
return $this->url;
}
/**
* {@inheritdoc}
*/
protected function write(array $record)
{
if (!is_resource($this->stream)) {
if (null === $this->url || '' === $this->url) {
throw new \LogicException('Missing stream url, the stream can not be opened. This may be caused by a premature call to close().');
}
$this->createDir();
$this->errorMessage = null;
set_error_handler(array($this, 'customErrorHandler'));
$this->stream = fopen($this->url, 'a');
if ($this->filePermission !== null) {
@chmod($this->url, $this->filePermission);
}
restore_error_handler();
if (!is_resource($this->stream)) {
$this->stream = null;
throw new \UnexpectedValueException(sprintf('The stream or file "%s" could not be opened: '.$this->errorMessage, $this->url));
}
}
if ($this->useLocking) {
// ignoring errors here, there's not much we can do about them
flock($this->stream, LOCK_EX);
}
$this->streamWrite($this->stream, $record);
if ($this->useLocking) {
flock($this->stream, LOCK_UN);
}
}
/**
* Write to stream
* @param resource $stream
* @param array $record
*/
protected function streamWrite($stream, array $record)
{
fwrite($stream, (string) $record['formatted']);
}
private function customErrorHandler($code, $msg)
{
$this->errorMessage = preg_replace('{^(fopen|mkdir)\(.*?\): }', '', $msg);
}
/**
* @param string $stream
*
* @return null|string
*/
private function getDirFromStream($stream)
{
$pos = strpos($stream, '://');
if ($pos === false) {
return dirname($stream);
}
if ('file://' === substr($stream, 0, 7)) {
return dirname(substr($stream, 7));
}
return;
}
private function createDir()
{
// Do not try to create dir if it has already been tried.
if ($this->dirCreated) {
return;
}
$dir = $this->getDirFromStream($this->url);
if (null !== $dir && !is_dir($dir)) {
$this->errorMessage = null;
set_error_handler(array($this, 'customErrorHandler'));
$status = mkdir($dir, 0777, true);
restore_error_handler();
if (false === $status) {
throw new \UnexpectedValueException(sprintf('There is no existing directory at "%s" and its not buildable: '.$this->errorMessage, $dir));
}
}
$this->dirCreated = true;
}
}
|
