|
1
|
|
|
<?php |
|
2
|
|
|
namespace WebPConvert\Serve; |
|
3
|
|
|
|
|
4
|
|
|
use WebPConvert\Serve\Header; |
|
5
|
|
|
use WebPConvert\Serve\Report; |
|
6
|
|
|
use WebPConvert\Serve\ServeFile; |
|
7
|
|
|
|
|
8
|
|
|
use WebPConvert\WebPConvert; |
|
9
|
|
|
use WebPConvert\Serve\Exceptions\ServeFailedException; |
|
10
|
|
|
use WebPConvert\Convert\Exceptions\ConversionFailedException; |
|
11
|
|
|
|
|
12
|
|
|
use ImageMimeTypeGuesser\ImageMimeTypeGuesser; |
|
13
|
|
|
|
|
14
|
|
|
/** |
|
15
|
|
|
* Serve a converted webp image. |
|
16
|
|
|
* |
|
17
|
|
|
* The webp that is served might end up being one of these: |
|
18
|
|
|
* - a fresh convertion |
|
19
|
|
|
* - the destionation |
|
20
|
|
|
* - the original |
|
21
|
|
|
* |
|
22
|
|
|
* Exactly which is a decision based upon options, file sizes and file modification dates |
|
23
|
|
|
* (see the serve method of this class for details) |
|
24
|
|
|
* |
|
25
|
|
|
* @package WebPConvert |
|
26
|
|
|
* @author Bjørn Rosell <[email protected]> |
|
27
|
|
|
* @since Class available since Release 2.0.0 |
|
28
|
|
|
*/ |
|
29
|
|
|
class ServeConvertedWebP |
|
30
|
|
|
{ |
|
31
|
|
|
|
|
32
|
|
|
public static $defaultOptions = [ |
|
33
|
|
|
'reconvert' => false, |
|
34
|
|
|
'serve-original' => false, |
|
35
|
|
|
'show-report' => false, |
|
36
|
|
|
]; |
|
37
|
|
|
|
|
38
|
|
|
/** |
|
39
|
|
|
* Serve original file (source). |
|
40
|
|
|
* |
|
41
|
|
|
* @param string $source path to source file |
|
42
|
|
|
* @param array $options (optional) options for serving |
|
43
|
|
|
* Supported options: |
|
44
|
|
|
* - All options supported by ServeFile::serve() |
|
45
|
|
|
* @throws ServeFailedException if source is not an image or mime type cannot be determined |
|
46
|
|
|
* @return void |
|
47
|
|
|
*/ |
|
48
|
|
|
public static function serveOriginal($source, $options = []) |
|
49
|
|
|
{ |
|
50
|
|
|
$contentType = ImageMimeTypeGuesser::lenientGuess($source); |
|
51
|
|
|
if (is_null($contentType)) { |
|
52
|
|
|
throw new ServeFailedException('Rejecting to serve original (mime type cannot be determined)'); |
|
53
|
|
|
} elseif ($contentType === false) { |
|
54
|
|
|
throw new ServeFailedException('Rejecting to serve original (it is not an image)'); |
|
55
|
|
|
} else { |
|
56
|
|
|
ServeFile::serve($source, $contentType, $options); |
|
57
|
|
|
} |
|
58
|
|
|
} |
|
59
|
|
|
|
|
60
|
|
|
/** |
|
61
|
3 |
|
* Serve destination file. |
|
62
|
|
|
* |
|
63
|
3 |
|
* @param string $destination path to destination file |
|
64
|
3 |
|
* @param array $options (optional) options for serving (such as which headers to add) |
|
65
|
|
|
* Supported options: |
|
66
|
3 |
|
* - All options supported by ServeFile::serve() |
|
67
|
|
|
* @return void |
|
68
|
|
|
*/ |
|
69
|
3 |
|
public static function serveDestination($destination, $options = []) |
|
70
|
|
|
{ |
|
71
|
3 |
|
ServeFile::serve($destination, 'image/webp', $options); |
|
72
|
|
|
} |
|
73
|
|
|
|
|
74
|
|
|
/** |
|
75
|
|
|
* @param string $msg Message to add to "X-WebP-Convert-Log" header |
|
76
|
|
|
* @param \WebPConvert\Loggers\BaseLogger $logger (optional) |
|
77
|
|
|
* @return void |
|
78
|
|
|
*/ |
|
79
|
|
|
private static function headerLog($msg, $logger = null) |
|
80
|
|
|
{ |
|
81
|
|
|
Header::addHeader('X-WebP-Convert-Log: ' . $msg); |
|
82
|
2 |
|
if (!is_null($logger)) { |
|
83
|
|
|
$logger->logLn($msg); |
|
84
|
2 |
|
} |
|
85
|
2 |
|
} |
|
86
|
|
|
|
|
87
|
|
|
/** |
|
88
|
|
|
* Serve converted webp. |
|
89
|
|
|
* |
|
90
|
|
|
* Serve a converted webp. If a file already exists at the destination, that is served (unless it is |
|
91
|
|
|
* older than the source - in that case a fresh conversion will be made, or the file at the destination |
|
92
|
|
|
* is larger than the source - in that case the source is served). Some options may alter this logic. |
|
93
|
|
|
* In case no file exists at the destination, a fresh conversion is made and served. |
|
94
|
|
|
* |
|
95
|
|
|
* @param string $source path to source file |
|
96
|
|
|
* @param string $destination path to destination |
|
97
|
|
|
* @param array $options (optional) options for serving/converting |
|
98
|
|
|
* Supported options: |
|
99
|
|
|
* 'show-report' => (boolean) If true, the decision will always be 'report' |
|
100
|
|
|
* 'serve-original' => (boolean) If true, the decision will be 'source' (unless above option is set) |
|
101
|
|
|
* 'reconvert ' => (boolean) If true, the decision will be 'fresh-conversion' (unless one of the |
|
102
|
|
|
* above options is set) |
|
103
|
|
|
* - All options supported by WebPConvert::convert() |
|
104
|
|
|
* - All options supported by ServeFile::serve() |
|
105
|
|
|
* @param \WebPConvert\Loggers\BaseLogger $logger (optional) |
|
106
|
|
|
* |
|
107
|
|
|
* @throws \WebPConvert\Convert\Exceptions\ConversionFailedException If conversion failed |
|
108
|
4 |
|
* @throws ServeFailedException If an argument is invalid or source file does not exists |
|
109
|
|
|
* @return void |
|
110
|
4 |
|
*/ |
|
111
|
|
|
public static function serve($source, $destination, $options = [], $logger = null) |
|
112
|
|
|
{ |
|
113
|
4 |
|
if (empty($source)) { |
|
114
|
|
|
throw new ServeFailedException('Source argument missing'); |
|
115
|
|
|
} |
|
116
|
4 |
|
if (empty($destination)) { |
|
117
|
|
|
throw new ServeFailedException('Destination argument missing'); |
|
118
|
|
|
} |
|
119
|
|
|
if (@!file_exists($source)) { |
|
120
|
4 |
|
throw new ServeFailedException('Source file was not found'); |
|
121
|
|
|
} |
|
122
|
4 |
|
|
|
123
|
|
|
$options = array_merge(self::$defaultOptions, $options); |
|
124
|
|
|
|
|
125
|
4 |
|
// Step 1: Is there a file at the destination? If not, trigger conversion |
|
126
|
1 |
|
// However, if show-report option is set, serve the report instead |
|
127
|
1 |
|
if ($options['show-report']) { |
|
128
|
|
|
self::headerLog('Showing report', $logger); |
|
129
|
3 |
|
Report::convertAndReport($source, $destination, $options); |
|
130
|
1 |
|
return; |
|
131
|
1 |
|
} |
|
132
|
|
|
|
|
133
|
2 |
|
if (!@file_exists($destination)) { |
|
134
|
1 |
|
self::headerLog('Converting (there were no file at destination)', $logger); |
|
135
|
1 |
|
WebPConvert::convert($source, $destination, $options, $logger); |
|
136
|
|
|
} elseif ($options['reconvert']) { |
|
137
|
1 |
|
self::headerLog('Converting (told to reconvert)', $logger); |
|
138
|
1 |
|
WebPConvert::convert($source, $destination, $options, $logger); |
|
139
|
1 |
|
} |
|
140
|
|
|
|
|
141
|
4 |
|
// Step 2: Is the destination older than the source? |
|
142
|
|
|
// If yes, trigger conversion (deleting destination is implicit) |
|
143
|
|
|
$timestampSource = @filemtime($source); |
|
144
|
|
|
$timestampDestination = @filemtime($destination); |
|
145
|
|
|
if (($timestampSource !== false) && |
|
146
|
|
|
($timestampDestination !== false) && |
|
147
|
|
|
($timestampSource > $timestampDestination)) { |
|
148
|
|
|
self::headerLog('Converting (destination was older than the source)', $logger); |
|
149
|
|
|
WebPConvert::convert($source, $destination, $options, $logger); |
|
150
|
|
|
} |
|
151
|
|
|
|
|
152
|
|
|
|
|
153
|
|
|
// Step 3: Serve the smallest file (destination or source) |
|
154
|
|
|
// However, first check if 'serve-original' is set |
|
155
|
|
|
if ($options['serve-original']) { |
|
156
|
|
|
self::headerLog('Serving original (told to)', $logger); |
|
157
|
|
|
self::serveOriginal($source, $options); |
|
158
|
|
|
} |
|
159
|
|
|
|
|
160
|
|
|
$filesizeDestination = @filesize($destination); |
|
161
|
|
|
$filesizeSource = @filesize($source); |
|
162
|
|
|
if (($filesizeSource !== false) && |
|
163
|
|
|
($filesizeDestination !== false) && |
|
164
|
|
|
($filesizeDestination > $filesizeSource)) { |
|
165
|
|
|
self::headerLog('Serving original (it is smaller)', $logger); |
|
166
|
|
|
self::serveOriginal($source, $options); |
|
167
|
|
|
} |
|
168
|
|
|
|
|
169
|
|
|
self::headerLog('Serving converted file', $logger); |
|
170
|
|
|
self::serveDestination($destination, $options); |
|
171
|
|
|
} |
|
172
|
|
|
} |
|
173
|
|
|
|
rosell-dk /
webp-convert
