MediaWiki master
UploadSourceAdapter.php
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1<?php
33 public static $sourceRegistrations = [];
34
36 public $context;
37
39 private $mSource;
40
42 private $mBuffer = '';
43
45 private $mPosition;
46
51 public static function registerSource( ImportSource $source ) {
52 $id = wfRandomString();
53
54 self::$sourceRegistrations[$id] = $source;
55
56 return $id;
57 }
58
63 public static function isSeekableSource( string $id ) {
64 if ( !isset( self::$sourceRegistrations[$id] ) ) {
65 return false;
66 }
67 return self::$sourceRegistrations[$id]->isSeekable();
68 }
69
75 public static function seekSource( string $id, int $offset ) {
76 if ( !isset( self::$sourceRegistrations[$id] ) ) {
77 return false;
78 }
79 return self::$sourceRegistrations[$id]->seek( $offset );
80 }
81
89 public function stream_open( $path, $mode, $options, &$opened_path ) {
90 $url = parse_url( $path );
91 if ( !isset( $url['host'] ) ) {
92 return false;
93 }
94 $id = $url['host'];
95
96 if ( !isset( self::$sourceRegistrations[$id] ) ) {
97 return false;
98 }
99
100 $this->mSource = self::$sourceRegistrations[$id];
101
102 return true;
103 }
104
109 public function stream_read( $count ) {
110 $return = '';
111 $leave = false;
112
113 while ( !$leave && !$this->mSource->atEnd() &&
114 strlen( $this->mBuffer ) < $count
115 ) {
116 $read = $this->mSource->readChunk();
117
118 if ( !strlen( $read ) ) {
119 $leave = true;
120 }
121
122 $this->mBuffer .= $read;
123 }
124
125 if ( strlen( $this->mBuffer ) ) {
126 $return = substr( $this->mBuffer, 0, $count );
127 $this->mBuffer = substr( $this->mBuffer, $count );
128 }
129
130 $this->mPosition += strlen( $return );
131
132 return $return;
133 }
134
139 public function stream_write( $data ) {
140 return false;
141 }
142
146 public function stream_tell() {
147 return $this->mPosition;
148 }
149
153 public function stream_eof() {
154 return $this->mSource->atEnd();
155 }
156
160 public function url_stat() {
161 $result = [];
162
163 $result['dev'] = $result[0] = 0;
164 $result['ino'] = $result[1] = 0;
165 $result['mode'] = $result[2] = 0;
166 $result['nlink'] = $result[3] = 0;
167 $result['uid'] = $result[4] = 0;
168 $result['gid'] = $result[5] = 0;
169 $result['rdev'] = $result[6] = 0;
170 $result['size'] = $result[7] = 0;
171 $result['atime'] = $result[8] = 0;
172 $result['mtime'] = $result[9] = 0;
173 $result['ctime'] = $result[10] = 0;
174 $result['blksize'] = $result[11] = 0;
175 $result['blocks'] = $result[12] = 0;
176
177 return $result;
178 }
179}
wfRandomString( $length=32)
Get a random string containing a number of pseudo-random hex characters.
This is a horrible hack used to keep source compatibility.
resource null $context
Must exists on stream wrapper class.
stream_open( $path, $mode, $options, &$opened_path)
static ImportSource[] $sourceRegistrations
static seekSource(string $id, int $offset)
static isSeekableSource(string $id)
static registerSource(ImportSource $source)
Source interface for XML import.
$source