From ca32f08966f1b51fcb19460f0996bb0c4048e6fe Mon Sep 17 00:00:00 2001 From: Pierre Schmitz Date: Sat, 3 Dec 2011 13:29:22 +0100 Subject: Update to MediaWiki 1.18.0 * also update ArchLinux skin to chagnes in MonoBook * Use only css to hide our menu bar when printing --- includes/media/XMPValidate.php | 323 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 323 insertions(+) create mode 100644 includes/media/XMPValidate.php (limited to 'includes/media/XMPValidate.php') diff --git a/includes/media/XMPValidate.php b/includes/media/XMPValidate.php new file mode 100644 index 00000000..0f1d375c --- /dev/null +++ b/includes/media/XMPValidate.php @@ -0,0 +1,323 @@ + 5 ) { + wfDebugLog( 'XMP', __METHOD__ . " Rating too high, setting to 5"); + $val = '5'; + return; + } + } + } + + /** + * function to validate integers + * + * @param $info Array information about current property + * @param &$val Mixed current value to validate + * @param $standalone Boolean if this is a simple property or array + */ + public static function validateInteger( $info, &$val, $standalone ) { + if ( !$standalone ) { + // this only validates standalone properties, not arrays, etc + return; + } + if ( !preg_match( '/^[-+]?\d+$/D', $val ) ) { + wfDebugLog( 'XMP', __METHOD__ . " Expected integer but got $val" ); + $val = null; + } + + } + + /** + * function to validate properties with a fixed number of allowed + * choices. (closed choice) + * + * @param $info Array information about current property + * @param &$val Mixed current value to validate + * @param $standalone Boolean if this is a simple property or array + */ + public static function validateClosed( $info, &$val, $standalone ) { + if ( !$standalone ) { + // this only validates standalone properties, not arrays, etc + return; + } + + //check if its in a numeric range + $inRange = false; + if ( isset( $info['rangeLow'] ) + && isset( $info['rangeHigh'] ) + && is_numeric( $val ) + && ( intval( $val ) <= $info['rangeHigh'] ) + && ( intval( $val ) >= $info['rangeLow'] ) + ) { + $inRange = true; + } + + if ( !isset( $info['choices'][$val] ) && !$inRange ) { + wfDebugLog( 'XMP', __METHOD__ . " Expected closed choice, but got $val" ); + $val = null; + } + } + + /** + * function to validate and modify flash structure + * + * @param $info Array information about current property + * @param &$val Mixed current value to validate + * @param $standalone Boolean if this is a simple property or array + */ + public static function validateFlash( $info, &$val, $standalone ) { + if ( $standalone ) { + // this only validates flash structs, not individual properties + return; + } + if ( !( isset( $val['Fired'] ) + && isset( $val['Function'] ) + && isset( $val['Mode'] ) + && isset( $val['RedEyeMode'] ) + && isset( $val['Return'] ) + ) ) { + wfDebugLog( 'XMP', __METHOD__ . " Flash structure did not have all the required components" ); + $val = null; + } else { + $val = ( "\0" | ( $val['Fired'] === 'True' ) + | ( intval( $val['Return'] ) << 1 ) + | ( intval( $val['Mode'] ) << 3 ) + | ( ( $val['Function'] === 'True' ) << 5 ) + | ( ( $val['RedEyeMode'] === 'True' ) << 6 ) ); + } + } + + /** + * function to validate LangCode properties ( en-GB, etc ) + * + * This is just a naive check to make sure it somewhat looks like a lang code. + * + * @see rfc 3066 + * @see http://www.adobe.com/devnet/xmp/pdfs/XMPSpecificationPart1.pdf page 30 (section 8.2.2.5) + * + * @param $info Array information about current property + * @param &$val Mixed current value to validate + * @param $standalone Boolean if this is a simple property or array + */ + public static function validateLangCode( $info, &$val, $standalone ) { + if ( !$standalone ) { + // this only validates standalone properties, not arrays, etc + return; + } + if ( !preg_match( '/^[-A-Za-z0-9]{2,}$/D', $val) ) { + //this is a rather naive check. + wfDebugLog( 'XMP', __METHOD__ . " Expected Lang code but got $val" ); + $val = null; + } + + } + + /** + * function to validate date properties, and convert to Exif format. + * + * @param $info Array information about current property + * @param &$val Mixed current value to validate. Converts to TS_EXIF as a side-effect. + * @param $standalone Boolean if this is a simple property or array + */ + public static function validateDate( $info, &$val, $standalone ) { + if ( !$standalone ) { + // this only validates standalone properties, not arrays, etc + return; + } + $res = array(); + if ( !preg_match( + /* ahh! scary regex... */ + '/^([0-3]\d{3})(?:-([01]\d)(?:-([0-3]\d)(?:T([0-2]\d):([0-6]\d)(?::([0-6]\d)(?:\.\d+)?)?([-+]\d{2}:\d{2}|Z)?)?)?)?$/D' + , $val, $res) + ) { + wfDebugLog( 'XMP', __METHOD__ . " Expected date but got $val" ); + $val = null; + } else { + /* + * $res is formatted as follows: + * 0 -> full date. + * 1 -> year, 2-> month, 3-> day, 4-> hour, 5-> minute, 6->second + * 7-> Timezone specifier (Z or something like +12:30 ) + * many parts are optional, some aren't. For example if you specify + * minute, you must specify hour, day, month, and year but not second or TZ. + */ + + /* + * First of all, if year = 0000, Something is wrongish, + * so don't extract. This seems to happen when + * some programs convert between metadata formats. + */ + if ( $res[1] === '0000' ) { + wfDebugLog( 'XMP', __METHOD__ . " Invalid date (year 0): $val" ); + $val = null; + return; + } + //if month, etc unspecified, full out as 01. + $res[2] = isset( $res[2] ) ? $res[2] : '01'; //month + $res[3] = isset( $res[3] ) ? $res[3] : '01'; //day + if ( !isset( $res[4] ) ) { //hour + //just have the year month day + $val = $res[1] . ':' . $res[2] . ':' . $res[3]; + return; + } + //if hour is set, so is minute or regex above will fail. + //Extra check for empty string necessary due to TZ but no second case. + $res[6] = isset( $res[6] ) && $res[6] != '' ? $res[6] : '00'; + + if ( !isset( $res[7] ) || $res[7] === 'Z' ) { + $val = $res[1] . ':' . $res[2] . ':' . $res[3] + . ' ' . $res[4] . ':' . $res[5] . ':' . $res[6]; + return; + } + + //do timezone processing. We've already done the case that tz = Z. + + $unix = wfTimestamp( TS_UNIX, $res[1] . $res[2] . $res[3] . $res[4] . $res[5] . $res[6] ); + $offset = intval( substr( $res[7], 1, 2 ) ) * 60 * 60; + $offset += intval( substr( $res[7], 4, 2 ) ) * 60; + if ( substr( $res[7], 0, 1 ) === '-' ) { + $offset = -$offset; + } + $val = wfTimestamp( TS_EXIF, $unix + $offset ); + } + + } + + /** function to validate, and more importantly + * translate the XMP DMS form of gps coords to + * the decimal form we use. + * + * @see http://www.adobe.com/devnet/xmp/pdfs/XMPSpecificationPart2.pdf + * section 1.2.7.4 on page 23 + * + * @param $info Array unused (info about prop) + * @param &$val String GPS string in either DDD,MM,SSk or + * or DDD,MM.mmk form + * @param $standalone Boolean if its a simple prop (should always be true) + */ + public static function validateGPS ( $info, &$val, $standalone ) { + if ( !$standalone ) { + return; + } + + $m = array(); + if ( preg_match( + '/(\d{1,3}),(\d{1,2}),(\d{1,2})([NWSE])/D', + $val, $m ) + ) { + $coord = intval( $m[1] ); + $coord += intval( $m[2] ) * (1/60); + $coord += intval( $m[3] ) * (1/3600); + if ( $m[4] === 'S' || $m[4] === 'W' ) { + $coord = -$coord; + } + $val = $coord; + return; + } elseif ( preg_match( + '/(\d{1,3}),(\d{1,2}(?:.\d*)?)([NWSE])/D', + $val, $m ) + ) { + $coord = intval( $m[1] ); + $coord += floatval( $m[2] ) * (1/60); + if ( $m[3] === 'S' || $m[3] === 'W' ) { + $coord = -$coord; + } + $val = $coord; + return; + + } else { + wfDebugLog( 'XMP', __METHOD__ + . " Expected GPSCoordinate, but got $val." ); + $val = null; + return; + } + } +} -- cgit v1.2.2