/** Initializes the MimeMagic object. This is called by MimeMagic::singleton().
*
* This constructor parses the mime.types and mime.info files and build internal mappings.
*/
function __construct()
{
/**
* --- load mime.types ---
*/
global $wgMimeTypeFile, $IP, $wgLoadFileinfoExtension;
$types = MM_WELL_KNOWN_MIME_TYPES;
if ($wgMimeTypeFile == 'includes/mime.types') {
$wgMimeTypeFile = "{$IP}/{$wgMimeTypeFile}";
}
if ($wgLoadFileinfoExtension && !self::$extensionLoaded) {
self::$extensionLoaded = true;
wfDl('fileinfo');
}
if ($wgMimeTypeFile) {
if (is_file($wgMimeTypeFile) and is_readable($wgMimeTypeFile)) {
wfDebug(__METHOD__ . ": loading mime types from {$wgMimeTypeFile}\n");
$types .= "\n";
$types .= file_get_contents($wgMimeTypeFile);
} else {
wfDebug(__METHOD__ . ": can't load mime types from {$wgMimeTypeFile}\n");
}
} else {
wfDebug(__METHOD__ . ": no mime types file defined, using build-ins only.\n");
}
$types = str_replace(array("\r\n", "\n\r", "\n\n", "\r\r", "\r"), "\n", $types);
$types = str_replace("\t", " ", $types);
$this->mMimeToExt = array();
$this->mToMime = array();
$lines = explode("\n", $types);
foreach ($lines as $s) {
$s = trim($s);
if (empty($s)) {
continue;
}
if (strpos($s, '#') === 0) {
continue;
}
$s = strtolower($s);
$i = strpos($s, ' ');
if ($i === false) {
continue;
}
$mime = substr($s, 0, $i);
$ext = trim(substr($s, $i + 1));
if (empty($ext)) {
continue;
}
if (!empty($this->mMimeToExt[$mime])) {
$this->mMimeToExt[$mime] .= ' ' . $ext;
} else {
$this->mMimeToExt[$mime] = $ext;
}
$extensions = explode(' ', $ext);
foreach ($extensions as $e) {
$e = trim($e);
if (empty($e)) {
continue;
}
if (!empty($this->mExtToMime[$e])) {
$this->mExtToMime[$e] .= ' ' . $mime;
} else {
$this->mExtToMime[$e] = $mime;
}
}
}
/**
* --- load mime.info ---
*/
global $wgMimeInfoFile;
if ($wgMimeInfoFile == 'includes/mime.info') {
$wgMimeInfoFile = "{$IP}/{$wgMimeInfoFile}";
}
$info = MM_WELL_KNOWN_MIME_INFO;
if ($wgMimeInfoFile) {
if (is_file($wgMimeInfoFile) and is_readable($wgMimeInfoFile)) {
wfDebug(__METHOD__ . ": loading mime info from {$wgMimeInfoFile}\n");
$info .= "\n";
$info .= file_get_contents($wgMimeInfoFile);
} else {
wfDebug(__METHOD__ . ": can't load mime info from {$wgMimeInfoFile}\n");
}
} else {
wfDebug(__METHOD__ . ": no mime info file defined, using build-ins only.\n");
}
$info = str_replace(array("\r\n", "\n\r", "\n\n", "\r\r", "\r"), "\n", $info);
$info = str_replace("\t", " ", $info);
$this->mMimeTypeAliases = array();
$this->mMediaTypes = array();
$lines = explode("\n", $info);
foreach ($lines as $s) {
$s = trim($s);
if (empty($s)) {
continue;
}
if (strpos($s, '#') === 0) {
continue;
}
$s = strtolower($s);
$i = strpos($s, ' ');
if ($i === false) {
continue;
}
#print "processing MIME INFO line $s<br>";
$match = array();
if (preg_match('!\\[\\s*(\\w+)\\s*\\]!', $s, $match)) {
$s = preg_replace('!\\[\\s*(\\w+)\\s*\\]!', '', $s);
$mtype = trim(strtoupper($match[1]));
} else {
$mtype = MEDIATYPE_UNKNOWN;
}
$m = explode(' ', $s);
if (!isset($this->mMediaTypes[$mtype])) {
$this->mMediaTypes[$mtype] = array();
}
foreach ($m as $mime) {
$mime = trim($mime);
if (empty($mime)) {
continue;
}
$this->mMediaTypes[$mtype][] = $mime;
}
if (sizeof($m) > 1) {
$main = $m[0];
for ($i = 1; $i < sizeof($m); $i += 1) {
$mime = $m[$i];
$this->mMimeTypeAliases[$mime] = $main;
}
}
}
}
