summaryrefslogtreecommitdiff
path: root/includes/media/XMP.php
diff options
context:
space:
mode:
Diffstat (limited to 'includes/media/XMP.php')
-rw-r--r--includes/media/XMP.php657
1 files changed, 326 insertions, 331 deletions
diff --git a/includes/media/XMP.php b/includes/media/XMP.php
index 36660b3d..62738a00 100644
--- a/includes/media/XMP.php
+++ b/includes/media/XMP.php
@@ -22,30 +22,30 @@
*/
/**
-* Class for reading xmp data containing properties relevant to
-* images, and spitting out an array that FormatExif accepts.
-*
-* Note, this is not meant to recognize every possible thing you can
-* encode in XMP. It should recognize all the properties we want.
-* For example it doesn't have support for structures with multiple
-* nesting levels, as none of the properties we're supporting use that
-* feature. If it comes across properties it doesn't recognize, it should
-* ignore them.
-*
-* The public methods one would call in this class are
-* - parse( $content )
-* Reads in xmp content.
-* Can potentially be called multiple times with partial data each time.
-* - parseExtended( $content )
-* Reads XMPExtended blocks (jpeg files only).
-* - getResults
-* Outputs a results array.
-*
-* Note XMP kind of looks like rdf. They are not the same thing - XMP is
-* encoded as a specific subset of rdf. This class can read XMP. It cannot
-* read rdf.
-*
-*/
+ * Class for reading xmp data containing properties relevant to
+ * images, and spitting out an array that FormatExif accepts.
+ *
+ * Note, this is not meant to recognize every possible thing you can
+ * encode in XMP. It should recognize all the properties we want.
+ * For example it doesn't have support for structures with multiple
+ * nesting levels, as none of the properties we're supporting use that
+ * feature. If it comes across properties it doesn't recognize, it should
+ * ignore them.
+ *
+ * The public methods one would call in this class are
+ * - parse( $content )
+ * Reads in xmp content.
+ * Can potentially be called multiple times with partial data each time.
+ * - parseExtended( $content )
+ * Reads XMPExtended blocks (jpeg files only).
+ * - getResults
+ * Outputs a results array.
+ *
+ * Note XMP kind of looks like rdf. They are not the same thing - XMP is
+ * encoded as a specific subset of rdf. This class can read XMP. It cannot
+ * read rdf.
+ *
+ */
class XMPReader {
private $curItem = array(); // array to hold the current element (and previous element, and so on)
@@ -63,39 +63,38 @@ class XMPReader {
protected $items;
/**
- * These are various mode constants.
- * they are used to figure out what to do
- * with an element when its encountered.
- *
- * For example, MODE_IGNORE is used when processing
- * a property we're not interested in. So if a new
- * element pops up when we're in that mode, we ignore it.
- */
+ * These are various mode constants.
+ * they are used to figure out what to do
+ * with an element when its encountered.
+ *
+ * For example, MODE_IGNORE is used when processing
+ * a property we're not interested in. So if a new
+ * element pops up when we're in that mode, we ignore it.
+ */
const MODE_INITIAL = 0;
- const MODE_IGNORE = 1;
- const MODE_LI = 2;
+ const MODE_IGNORE = 1;
+ const MODE_LI = 2;
const MODE_LI_LANG = 3;
- const MODE_QDESC = 4;
+ const MODE_QDESC = 4;
// The following MODE constants are also used in the
// $items array to denote what type of property the item is.
- const MODE_SIMPLE = 10;
- const MODE_STRUCT = 11; // structure (associative array)
- const MODE_SEQ = 12; // ordered list
- const MODE_BAG = 13; // unordered list
- const MODE_LANG = 14;
- const MODE_ALT = 15; // non-language alt. Currently not implemented, and not needed atm.
+ const MODE_SIMPLE = 10;
+ const MODE_STRUCT = 11; // structure (associative array)
+ const MODE_SEQ = 12; // ordered list
+ const MODE_BAG = 13; // unordered list
+ const MODE_LANG = 14;
+ const MODE_ALT = 15; // non-language alt. Currently not implemented, and not needed atm.
const MODE_BAGSTRUCT = 16; // A BAG of Structs.
const NS_RDF = 'http://www.w3.org/1999/02/22-rdf-syntax-ns#';
const NS_XML = 'http://www.w3.org/XML/1998/namespace';
-
/**
- * Constructor.
- *
- * Primary job is to initialize the XMLParser
- */
+ * Constructor.
+ *
+ * Primary job is to initialize the XMLParser
+ */
function __construct() {
if ( !function_exists( 'xml_parser_create_ns' ) ) {
@@ -109,12 +108,12 @@ class XMPReader {
}
/**
- * Main use is if a single item has multiple xmp documents describing it.
- * For example in jpeg's with extendedXMP
- */
+ * Main use is if a single item has multiple xmp documents describing it.
+ * For example in jpeg's with extendedXMP
+ */
private function resetXMLParser() {
- if ($this->xmlParser) {
+ if ( $this->xmlParser ) {
//is this needed?
xml_parser_free( $this->xmlParser );
}
@@ -131,20 +130,20 @@ class XMPReader {
}
/** Destroy the xml parser
- *
- * Not sure if this is actually needed.
- */
+ *
+ * Not sure if this is actually needed.
+ */
function __destruct() {
// not sure if this is needed.
xml_parser_free( $this->xmlParser );
}
/** Get the result array. Do some post-processing before returning
- * the array, and transform any metadata that is special-cased.
- *
- * @return Array array of results as an array of arrays suitable for
- * FormatMetadata::getFormattedData().
- */
+ * the array, and transform any metadata that is special-cased.
+ *
+ * @return Array array of results as an array of arrays suitable for
+ * FormatMetadata::getFormattedData().
+ */
public function getResults() {
// xmp-special is for metadata that affects how stuff
// is extracted. For example xmpNote:HasExtendedXMP.
@@ -156,7 +155,7 @@ class XMPReader {
$data = $this->results;
- wfRunHooks('XMPGetResults', Array(&$data));
+ wfRunHooks( 'XMPGetResults', Array( &$data ) );
if ( isset( $data['xmp-special']['AuthorsPosition'] )
&& is_string( $data['xmp-special']['AuthorsPosition'] )
@@ -201,13 +200,12 @@ class XMPReader {
// To avoid copying over the _type meta-fields.
continue;
}
- foreach( $loc as $field => $val ) {
+ foreach( $loc as $field => $val ) {
$data['xmp-general'][$field . 'Created'][] = $val;
}
}
}
-
// We don't want to return the special values, since they're
// special and not info to be stored about the file.
unset( $data['xmp-special'] );
@@ -232,17 +230,18 @@ class XMPReader {
}
/**
- * Main function to call to parse XMP. Use getResults to
- * get results.
- *
- * Also catches any errors during processing, writes them to
- * debug log, blanks result array and returns false.
- *
- * @param $content String: XMP data
- * @param $allOfIt Boolean: If this is all the data (true) or if its split up (false). Default true
- * @param $reset Boolean: does xml parser need to be reset. Default false
- * @return Boolean success.
- */
+ * Main function to call to parse XMP. Use getResults to
+ * get results.
+ *
+ * Also catches any errors during processing, writes them to
+ * debug log, blanks result array and returns false.
+ *
+ * @param string $content XMP data
+ * @param $allOfIt Boolean: If this is all the data (true) or if its split up (false). Default true
+ * @param $reset Boolean: does xml parser need to be reset. Default false
+ * @throws MWException
+ * @return Boolean success.
+ */
public function parse( $content, $allOfIt = true, $reset = false ) {
if ( $reset ) {
$this->resetXMLParser();
@@ -254,7 +253,7 @@ class XMPReader {
if ( !$this->charset ) {
$bom = array();
if ( preg_match( '/\xEF\xBB\xBF|\xFE\xFF|\x00\x00\xFE\xFF|\xFF\xFE\x00\x00|\xFF\xFE/',
- $content, $bom )
+ $content, $bom )
) {
switch ( $bom[0] ) {
case "\xFE\xFF":
@@ -274,11 +273,8 @@ class XMPReader {
break;
default:
//this should be impossible to get to
- throw new MWException("Invalid BOM");
- break;
-
+ throw new MWException( "Invalid BOM" );
}
-
} else {
// standard specifically says, if no bom assume utf-8
$this->charset = 'UTF-8';
@@ -314,7 +310,7 @@ class XMPReader {
*
* @todo In serious need of testing
* @see http://www.adobe.ge/devnet/xmp/pdfs/XMPSpecificationPart3.pdf XMP spec part 3 page 20
- * @param String $content XMPExtended block minus the namespace signature
+ * @param string $content XMPExtended block minus the namespace signature
* @return Boolean If it succeeded.
*/
public function parseExtended( $content ) {
@@ -323,17 +319,16 @@ class XMPReader {
$guid = substr( $content, 0, 32 );
if ( !isset( $this->results['xmp-special']['HasExtendedXMP'] )
|| $this->results['xmp-special']['HasExtendedXMP'] !== $guid ) {
- wfDebugLog('XMP', __METHOD__ . " Ignoring XMPExtended block due to wrong guid (guid= '$guid' )");
+ wfDebugLog( 'XMP', __METHOD__ . " Ignoring XMPExtended block due to wrong guid (guid= '$guid')" );
return false;
}
- $len = unpack( 'Nlength/Noffset', substr( $content, 32, 8 ) );
+ $len = unpack( 'Nlength/Noffset', substr( $content, 32, 8 ) );
- if (!$len || $len['length'] < 4 || $len['offset'] < 0 || $len['offset'] > $len['length'] ) {
- wfDebugLog('XMP', __METHOD__ . 'Error reading extended XMP block, invalid length or offset.');
+ if ( !$len || $len['length'] < 4 || $len['offset'] < 0 || $len['offset'] > $len['length'] ) {
+ wfDebugLog( 'XMP', __METHOD__ . 'Error reading extended XMP block, invalid length or offset.' );
return false;
}
-
// we're not very robust here. we should accept it in the wrong order. To quote
// the xmp standard:
// "A JPEG writer should write the ExtendedXMP marker segments in order, immediately following the
@@ -344,8 +339,8 @@ class XMPReader {
// so the probability that it will have > 128k, and be in the wrong order is very low...
if ( $len['offset'] !== $this->extendedXMPOffset ) {
- wfDebugLog('XMP', __METHOD__ . 'Ignoring XMPExtended block due to wrong order. (Offset was '
- . $len['offset'] . ' but expected ' . $this->extendedXMPOffset . ')');
+ wfDebugLog( 'XMP', __METHOD__ . 'Ignoring XMPExtended block due to wrong order. (Offset was '
+ . $len['offset'] . ' but expected ' . $this->extendedXMPOffset . ')' );
return false;
}
@@ -365,26 +360,26 @@ class XMPReader {
$atEnd = false;
}
- wfDebugLog('XMP', __METHOD__ . 'Parsing a XMPExtended block');
+ wfDebugLog( 'XMP', __METHOD__ . 'Parsing a XMPExtended block' );
return $this->parse( $actualContent, $atEnd );
}
/**
- * Character data handler
- * Called whenever character data is found in the xmp document.
- *
- * does nothing if we're in MODE_IGNORE or if the data is whitespace
- * throws an error if we're not in MODE_SIMPLE (as we're not allowed to have character
- * data in the other modes).
- *
- * As an example, this happens when we encounter XMP like:
- * <exif:DigitalZoomRatio>0/10</exif:DigitalZoomRatio>
- * and are processing the 0/10 bit.
- *
- * @param $parser XMLParser reference to the xml parser
- * @param $data String Character data
- * @throws MWException on invalid data
- */
+ * Character data handler
+ * Called whenever character data is found in the xmp document.
+ *
+ * does nothing if we're in MODE_IGNORE or if the data is whitespace
+ * throws an error if we're not in MODE_SIMPLE (as we're not allowed to have character
+ * data in the other modes).
+ *
+ * As an example, this happens when we encounter XMP like:
+ * <exif:DigitalZoomRatio>0/10</exif:DigitalZoomRatio>
+ * and are processing the 0/10 bit.
+ *
+ * @param $parser XMLParser reference to the xml parser
+ * @param string $data Character data
+ * @throws MWException on invalid data
+ */
function char( $parser, $data ) {
$data = trim( $data );
@@ -414,36 +409,33 @@ class XMPReader {
}
/** When we hit a closing element in MODE_IGNORE
- * Check to see if this is the element we started to ignore,
- * in which case we get out of MODE_IGNORE
- *
- * @param $elm String Namespace of element followed by a space and then tag name of element.
- */
+ * Check to see if this is the element we started to ignore,
+ * in which case we get out of MODE_IGNORE
+ *
+ * @param string $elm Namespace of element followed by a space and then tag name of element.
+ */
private function endElementModeIgnore ( $elm ) {
-
if ( $this->curItem[0] === $elm ) {
array_shift( $this->curItem );
array_shift( $this->mode );
}
- return;
-
}
/**
- * Hit a closing element when in MODE_SIMPLE.
- * This generally means that we finished processing a
- * property value, and now have to save the result to the
- * results array
- *
- * For example, when processing:
- * <exif:DigitalZoomRatio>0/10</exif:DigitalZoomRatio>
- * this deals with when we hit </exif:DigitalZoomRatio>.
- *
- * Or it could be if we hit the end element of a property
- * of a compound data structure (like a member of an array).
- *
- * @param $elm String namespace, space, and tag name.
- */
+ * Hit a closing element when in MODE_SIMPLE.
+ * This generally means that we finished processing a
+ * property value, and now have to save the result to the
+ * results array
+ *
+ * For example, when processing:
+ * <exif:DigitalZoomRatio>0/10</exif:DigitalZoomRatio>
+ * this deals with when we hit </exif:DigitalZoomRatio>.
+ *
+ * Or it could be if we hit the end element of a property
+ * of a compound data structure (like a member of an array).
+ *
+ * @param string $elm namespace, space, and tag name.
+ */
private function endElementModeSimple ( $elm ) {
if ( $this->charContent !== false ) {
if ( $this->processingArray ) {
@@ -463,22 +455,23 @@ class XMPReader {
}
/**
- * Hit a closing element in MODE_STRUCT, MODE_SEQ, MODE_BAG
- * generally means we've finished processing a nested structure.
- * resets some internal variables to indicate that.
- *
- * Note this means we hit the closing element not the "</rdf:Seq>".
- *
- * @par For example, when processing:
- * @code{,xml}
- * <exif:ISOSpeedRatings> <rdf:Seq> <rdf:li>64</rdf:li>
- * </rdf:Seq> </exif:ISOSpeedRatings>
- * @endcode
- *
- * This method is called when we hit the "</exif:ISOSpeedRatings>" tag.
- *
- * @param $elm String namespace . space . tag name.
- */
+ * Hit a closing element in MODE_STRUCT, MODE_SEQ, MODE_BAG
+ * generally means we've finished processing a nested structure.
+ * resets some internal variables to indicate that.
+ *
+ * Note this means we hit the closing element not the "</rdf:Seq>".
+ *
+ * @par For example, when processing:
+ * @code{,xml}
+ * <exif:ISOSpeedRatings> <rdf:Seq> <rdf:li>64</rdf:li>
+ * </rdf:Seq> </exif:ISOSpeedRatings>
+ * @endcode
+ *
+ * This method is called when we hit the "</exif:ISOSpeedRatings>" tag.
+ *
+ * @param string $elm namespace . space . tag name.
+ * @throws MWException
+ */
private function endElementNested( $elm ) {
/* cur item must be the same as $elm, unless if in MODE_STRUCT
@@ -486,7 +479,7 @@ class XMPReader {
if ( $this->curItem[0] !== $elm
&& !( $elm === self::NS_RDF . ' Description'
&& $this->mode[0] === self::MODE_STRUCT )
- ) {
+ ) {
throw new MWException( "nesting mismatch. got a </$elm> but expected a </" . $this->curItem[0] . '>' );
}
@@ -528,23 +521,24 @@ class XMPReader {
}
/**
- * Hit a closing element in MODE_LI (either rdf:Seq, or rdf:Bag )
- * Add information about what type of element this is.
- *
- * Note we still have to hit the outer "</property>"
- *
- * @par For example, when processing:
- * @code{,xml}
- * <exif:ISOSpeedRatings> <rdf:Seq> <rdf:li>64</rdf:li>
- * </rdf:Seq> </exif:ISOSpeedRatings>
- * @endcode
- *
- * This method is called when we hit the "</rdf:Seq>".
- * (For comparison, we call endElementModeSimple when we
- * hit the "</rdf:li>")
- *
- * @param $elm String namespace . ' ' . element name
- */
+ * Hit a closing element in MODE_LI (either rdf:Seq, or rdf:Bag )
+ * Add information about what type of element this is.
+ *
+ * Note we still have to hit the outer "</property>"
+ *
+ * @par For example, when processing:
+ * @code{,xml}
+ * <exif:ISOSpeedRatings> <rdf:Seq> <rdf:li>64</rdf:li>
+ * </rdf:Seq> </exif:ISOSpeedRatings>
+ * @endcode
+ *
+ * This method is called when we hit the "</rdf:Seq>".
+ * (For comparison, we call endElementModeSimple when we
+ * hit the "</rdf:li>")
+ *
+ * @param string $elm namespace . ' ' . element name
+ * @throws MWException
+ */
private function endElementModeLi( $elm ) {
list( $ns, $tag ) = explode( ' ', $this->curItem[0], 2 );
@@ -575,15 +569,15 @@ class XMPReader {
}
/**
- * End element while in MODE_QDESC
- * mostly when ending an element when we have a simple value
- * that has qualifiers.
- *
- * Qualifiers aren't all that common, and we don't do anything
- * with them.
- *
- * @param $elm String namespace and element
- */
+ * End element while in MODE_QDESC
+ * mostly when ending an element when we have a simple value
+ * that has qualifiers.
+ *
+ * Qualifiers aren't all that common, and we don't do anything
+ * with them.
+ *
+ * @param string $elm namespace and element
+ */
private function endElementModeQDesc( $elm ) {
if ( $elm === self::NS_RDF . ' value' ) {
@@ -594,22 +588,21 @@ class XMPReader {
array_shift( $this->mode );
array_shift( $this->curItem );
}
-
-
}
/**
- * Handler for hitting a closing element.
- *
- * generally just calls a helper function depending on what
- * mode we're in.
- *
- * Ignores the outer wrapping elements that are optional in
- * xmp and have no meaning.
- *
- * @param $parser XMLParser
- * @param $elm String namespace . ' ' . element name
- */
+ * Handler for hitting a closing element.
+ *
+ * generally just calls a helper function depending on what
+ * mode we're in.
+ *
+ * Ignores the outer wrapping elements that are optional in
+ * xmp and have no meaning.
+ *
+ * @param $parser XMLParser
+ * @param string $elm namespace . ' ' . element name
+ * @throws MWException
+ */
function endElement( $parser, $elm ) {
if ( $elm === ( self::NS_RDF . ' RDF' )
|| $elm === 'adobe:ns:meta/ xmpmeta'
@@ -681,16 +674,16 @@ class XMPReader {
}
/**
- * Hit an opening element while in MODE_IGNORE
- *
- * XMP is extensible, so ignore any tag we don't understand.
- *
- * Mostly ignores, unless we encounter the element that we are ignoring.
- * in which case we add it to the item stack, so we can ignore things
- * that are nested, correctly.
- *
- * @param $elm String namespace . ' ' . tag name
- */
+ * Hit an opening element while in MODE_IGNORE
+ *
+ * XMP is extensible, so ignore any tag we don't understand.
+ *
+ * Mostly ignores, unless we encounter the element that we are ignoring.
+ * in which case we add it to the item stack, so we can ignore things
+ * that are nested, correctly.
+ *
+ * @param string $elm namespace . ' ' . tag name
+ */
private function startElementModeIgnore( $elm ) {
if ( $elm === $this->curItem[0] ) {
array_unshift( $this->curItem, $elm );
@@ -699,12 +692,12 @@ class XMPReader {
}
/**
- * Start element in MODE_BAG (unordered array)
- * this should always be <rdf:Bag>
- *
- * @param $elm String namespace . ' ' . tag
- * @throws MWException if we have an element that's not <rdf:Bag>
- */
+ * Start element in MODE_BAG (unordered array)
+ * this should always be <rdf:Bag>
+ *
+ * @param string $elm namespace . ' ' . tag
+ * @throws MWException if we have an element that's not <rdf:Bag>
+ */
private function startElementModeBag( $elm ) {
if ( $elm === self::NS_RDF . ' Bag' ) {
array_unshift( $this->mode, self::MODE_LI );
@@ -715,12 +708,12 @@ class XMPReader {
}
/**
- * Start element in MODE_SEQ (ordered array)
- * this should always be <rdf:Seq>
- *
- * @param $elm String namespace . ' ' . tag
- * @throws MWException if we have an element that's not <rdf:Seq>
- */
+ * Start element in MODE_SEQ (ordered array)
+ * this should always be <rdf:Seq>
+ *
+ * @param string $elm namespace . ' ' . tag
+ * @throws MWException if we have an element that's not <rdf:Seq>
+ */
private function startElementModeSeq( $elm ) {
if ( $elm === self::NS_RDF . ' Seq' ) {
array_unshift( $this->mode, self::MODE_LI );
@@ -736,19 +729,19 @@ class XMPReader {
}
/**
- * Start element in MODE_LANG (language alternative)
- * this should always be <rdf:Alt>
- *
- * This tag tends to be used for metadata like describe this
- * picture, which can be translated into multiple languages.
- *
- * XMP supports non-linguistic alternative selections,
- * which are really only used for thumbnails, which
- * we don't care about.
- *
- * @param $elm String namespace . ' ' . tag
- * @throws MWException if we have an element that's not <rdf:Alt>
- */
+ * Start element in MODE_LANG (language alternative)
+ * this should always be <rdf:Alt>
+ *
+ * This tag tends to be used for metadata like describe this
+ * picture, which can be translated into multiple languages.
+ *
+ * XMP supports non-linguistic alternative selections,
+ * which are really only used for thumbnails, which
+ * we don't care about.
+ *
+ * @param string $elm namespace . ' ' . tag
+ * @throws MWException if we have an element that's not <rdf:Alt>
+ */
private function startElementModeLang( $elm ) {
if ( $elm === self::NS_RDF . ' Alt' ) {
array_unshift( $this->mode, self::MODE_LI_LANG );
@@ -759,22 +752,23 @@ class XMPReader {
}
/**
- * Handle an opening element when in MODE_SIMPLE
- *
- * This should not happen often. This is for if a simple element
- * already opened has a child element. Could happen for a
- * qualified element.
- *
- * For example:
- * <exif:DigitalZoomRatio><rdf:Description><rdf:value>0/10</rdf:value>
- * <foo:someQualifier>Bar</foo:someQualifier> </rdf:Description>
- * </exif:DigitalZoomRatio>
- *
- * This method is called when processing the <rdf:Description> element
- *
- * @param $elm String namespace and tag names separated by space.
- * @param $attribs Array Attributes of the element.
- */
+ * Handle an opening element when in MODE_SIMPLE
+ *
+ * This should not happen often. This is for if a simple element
+ * already opened has a child element. Could happen for a
+ * qualified element.
+ *
+ * For example:
+ * <exif:DigitalZoomRatio><rdf:Description><rdf:value>0/10</rdf:value>
+ * <foo:someQualifier>Bar</foo:someQualifier> </rdf:Description>
+ * </exif:DigitalZoomRatio>
+ *
+ * This method is called when processing the <rdf:Description> element
+ *
+ * @param string $elm namespace and tag names separated by space.
+ * @param array $attribs Attributes of the element.
+ * @throws MWException
+ */
private function startElementModeSimple( $elm, $attribs ) {
if ( $elm === self::NS_RDF . ' Description' ) {
// If this value has qualifiers
@@ -800,19 +794,19 @@ class XMPReader {
}
/**
- * Start an element when in MODE_QDESC.
- * This generally happens when a simple element has an inner
- * rdf:Description to hold qualifier elements.
- *
- * For example in:
- * <exif:DigitalZoomRatio><rdf:Description><rdf:value>0/10</rdf:value>
- * <foo:someQualifier>Bar</foo:someQualifier> </rdf:Description>
- * </exif:DigitalZoomRatio>
- * Called when processing the <rdf:value> or <foo:someQualifier>.
- *
- * @param $elm String namespace and tag name separated by a space.
- *
- */
+ * Start an element when in MODE_QDESC.
+ * This generally happens when a simple element has an inner
+ * rdf:Description to hold qualifier elements.
+ *
+ * For example in:
+ * <exif:DigitalZoomRatio><rdf:Description><rdf:value>0/10</rdf:value>
+ * <foo:someQualifier>Bar</foo:someQualifier> </rdf:Description>
+ * </exif:DigitalZoomRatio>
+ * Called when processing the <rdf:value> or <foo:someQualifier>.
+ *
+ * @param string $elm namespace and tag name separated by a space.
+ *
+ */
private function startElementModeQDesc( $elm ) {
if ( $elm === self::NS_RDF . ' value' ) {
return; // do nothing
@@ -824,16 +818,17 @@ class XMPReader {
}
/**
- * Starting an element when in MODE_INITIAL
- * This usually happens when we hit an element inside
- * the outer rdf:Description
- *
- * This is generally where most properties start.
- *
- * @param $ns String Namespace
- * @param $tag String tag name (without namespace prefix)
- * @param $attribs Array array of attributes
- */
+ * Starting an element when in MODE_INITIAL
+ * This usually happens when we hit an element inside
+ * the outer rdf:Description
+ *
+ * This is generally where most properties start.
+ *
+ * @param string $ns Namespace
+ * @param string $tag tag name (without namespace prefix)
+ * @param array $attribs array of attributes
+ * @throws MWException
+ */
private function startElementModeInitial( $ns, $tag, $attribs ) {
if ( $ns !== self::NS_RDF ) {
@@ -877,23 +872,24 @@ class XMPReader {
}
/**
- * Hit an opening element when in a Struct (MODE_STRUCT)
- * This is generally for fields of a compound property.
- *
- * Example of a struct (abbreviated; flash has more properties):
- *
- * <exif:Flash> <rdf:Description> <exif:Fired>True</exif:Fired>
- * <exif:Mode>1</exif:Mode></rdf:Description></exif:Flash>
- *
- * or:
- *
- * <exif:Flash rdf:parseType='Resource'> <exif:Fired>True</exif:Fired>
- * <exif:Mode>1</exif:Mode></exif:Flash>
- *
- * @param $ns String namespace
- * @param $tag String tag name (no ns)
- * @param $attribs Array array of attribs w/ values.
- */
+ * Hit an opening element when in a Struct (MODE_STRUCT)
+ * This is generally for fields of a compound property.
+ *
+ * Example of a struct (abbreviated; flash has more properties):
+ *
+ * <exif:Flash> <rdf:Description> <exif:Fired>True</exif:Fired>
+ * <exif:Mode>1</exif:Mode></rdf:Description></exif:Flash>
+ *
+ * or:
+ *
+ * <exif:Flash rdf:parseType='Resource'> <exif:Fired>True</exif:Fired>
+ * <exif:Mode>1</exif:Mode></exif:Flash>
+ *
+ * @param string $ns namespace
+ * @param string $tag tag name (no ns)
+ * @param array $attribs array of attribs w/ values.
+ * @throws MWException
+ */
private function startElementModeStruct( $ns, $tag, $attribs ) {
if ( $ns !== self::NS_RDF ) {
@@ -929,18 +925,18 @@ class XMPReader {
}
/**
- * opening element in MODE_LI
- * process elements of arrays.
- *
- * Example:
- * <exif:ISOSpeedRatings> <rdf:Seq> <rdf:li>64</rdf:li>
- * </rdf:Seq> </exif:ISOSpeedRatings>
- * This method is called when we hit the <rdf:li> element.
- *
- * @param $elm String: namespace . ' ' . tagname
- * @param $attribs Array: Attributes. (needed for BAGSTRUCTS)
- * @throws MWException if gets a tag other than <rdf:li>
- */
+ * opening element in MODE_LI
+ * process elements of arrays.
+ *
+ * Example:
+ * <exif:ISOSpeedRatings> <rdf:Seq> <rdf:li>64</rdf:li>
+ * </rdf:Seq> </exif:ISOSpeedRatings>
+ * This method is called when we hit the <rdf:li> element.
+ *
+ * @param string $elm namespace . ' ' . tagname
+ * @param array $attribs Attributes. (needed for BAGSTRUCTS)
+ * @throws MWException if gets a tag other than <rdf:li>
+ */
private function startElementModeLi( $elm, $attribs ) {
if ( ( $elm ) !== self::NS_RDF . ' li' ) {
throw new MWException( "<rdf:li> expected but got $elm." );
@@ -980,19 +976,19 @@ class XMPReader {
}
/**
- * Opening element in MODE_LI_LANG.
- * process elements of language alternatives
- *
- * Example:
- * <dc:title> <rdf:Alt> <rdf:li xml:lang="x-default">My house
- * </rdf:li> </rdf:Alt> </dc:title>
- *
- * This method is called when we hit the <rdf:li> element.
- *
- * @param $elm String namespace . ' ' . tag
- * @param $attribs array array of elements (most importantly xml:lang)
- * @throws MWException if gets a tag other than <rdf:li> or if no xml:lang
- */
+ * Opening element in MODE_LI_LANG.
+ * process elements of language alternatives
+ *
+ * Example:
+ * <dc:title> <rdf:Alt> <rdf:li xml:lang="x-default">My house
+ * </rdf:li> </rdf:Alt> </dc:title>
+ *
+ * This method is called when we hit the <rdf:li> element.
+ *
+ * @param string $elm namespace . ' ' . tag
+ * @param array $attribs array of elements (most importantly xml:lang)
+ * @throws MWException if gets a tag other than <rdf:li> or if no xml:lang
+ */
private function startElementModeLiLang( $elm, $attribs ) {
if ( $elm !== self::NS_RDF . ' li' ) {
throw new MWException( __METHOD__ . " <rdf:li> expected but got $elm." );
@@ -1015,19 +1011,20 @@ class XMPReader {
}
/**
- * Hits an opening element.
- * Generally just calls a helper based on what MODE we're in.
- * Also does some initial set up for the wrapper element
- *
- * @param $parser XMLParser
- * @param $elm String namespace "<space>" element
- * @param $attribs Array attribute name => value
- */
+ * Hits an opening element.
+ * Generally just calls a helper based on what MODE we're in.
+ * Also does some initial set up for the wrapper element
+ *
+ * @param $parser XMLParser
+ * @param string $elm namespace "<space>" element
+ * @param array $attribs attribute name => value
+ * @throws MWException
+ */
function startElement( $parser, $elm, $attribs ) {
if ( $elm === self::NS_RDF . ' RDF'
|| $elm === 'adobe:ns:meta/ xmpmeta'
- || $elm === 'adobe:ns:meta/ xapmeta')
+ || $elm === 'adobe:ns:meta/ xapmeta' )
{
/* ignore. */
return;
@@ -1057,7 +1054,7 @@ class XMPReader {
if ( count( $this->mode ) === 0 ) {
// This should not happen.
- throw new MWException('Error extracting XMP, '
+ throw new MWException( 'Error extracting XMP, '
. "encountered <$elm> with no mode" );
}
@@ -1095,24 +1092,24 @@ class XMPReader {
break;
default:
throw new MWException( 'StartElement in unknown mode: ' . $this->mode[0] );
- break;
}
}
/**
- * Process attributes.
- * Simple values can be stored as either a tag or attribute
- *
- * Often the initial "<rdf:Description>" tag just has all the simple
- * properties as attributes.
- *
- * @par Example:
- * @code
- * <rdf:Description rdf:about="" xmlns:exif="http://ns.adobe.com/exif/1.0/" exif:DigitalZoomRatio="0/10">
- * @endcode
- *
- * @param $attribs Array attribute=>value array.
- */
+ * Process attributes.
+ * Simple values can be stored as either a tag or attribute
+ *
+ * Often the initial "<rdf:Description>" tag just has all the simple
+ * properties as attributes.
+ *
+ * @par Example:
+ * @code
+ * <rdf:Description rdf:about="" xmlns:exif="http://ns.adobe.com/exif/1.0/" exif:DigitalZoomRatio="0/10">
+ * @endcode
+ *
+ * @param array $attribs attribute=>value array.
+ * @throws MWException
+ */
private function doAttribs( $attribs ) {
// first check for rdf:parseType attribute, as that can change
@@ -1126,8 +1123,6 @@ class XMPReader {
$this->mode[0] = self::MODE_QDESC;
}
foreach ( $attribs as $name => $val ) {
-
-
if ( strpos( $name, ' ' ) === false ) {
// This shouldn't happen, but so far some old software forgets namespace
// on rdf:about.
@@ -1155,16 +1150,16 @@ class XMPReader {
}
/**
- * Given an extracted value, save it to results array
- *
- * note also uses $this->ancestorStruct and
- * $this->processingArray to determine what name to
- * save the value under. (in addition to $tag).
- *
- * @param $ns String namespace of tag this is for
- * @param $tag String tag name
- * @param $val String value to save
- */
+ * Given an extracted value, save it to results array
+ *
+ * note also uses $this->ancestorStruct and
+ * $this->processingArray to determine what name to
+ * save the value under. (in addition to $tag).
+ *
+ * @param string $ns namespace of tag this is for
+ * @param string $tag tag name
+ * @param string $val value to save
+ */
private function saveValue( $ns, $tag, $val ) {
$info =& $this->items[$ns][$tag];
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2024-11-02 15:09:53 +0000