| 1 |
<?php
|
| 2 |
// $Id$
|
| 3 |
|
| 4 |
// CubeWerx requires at least 10M for wms capabilities
|
| 5 |
ini_set( 'memory_limit', '20M' );
|
| 6 |
|
| 7 |
/**
|
| 8 |
*
|
| 9 |
* inherited: +style, +crs, =latlonboundingbox, =boundingbox, +authorityurl
|
| 10 |
* =dimension, =attribution, =min/maxscaledenominator, =queryable, =cascaded
|
| 11 |
* =opaque
|
| 12 |
* attribution: title, onlineresource->xlink:href, logourl(format,onlineresource)
|
| 13 |
* style: name, title, legendurl(format,onlineresource->xlink:href)
|
| 14 |
*/
|
| 15 |
class CapabilitiesParser
|
| 16 |
{
|
| 17 |
var $parser;
|
| 18 |
|
| 19 |
var $version = NULL; // wms version
|
| 20 |
var $root = NULL; // root element name (depends on wms version)
|
| 21 |
var $path = ''; // current path (excluding root)
|
| 22 |
|
| 23 |
var $layers = array();
|
| 24 |
var $layer_level = 0;
|
| 25 |
var $layer_props;
|
| 26 |
var $inAttribution = false;
|
| 27 |
var $inStyle = false;
|
| 28 |
|
| 29 |
var $element = ''; // current element
|
| 30 |
var $cbLayer = NULL;
|
| 31 |
var $cbLayerParams = NULL;
|
| 32 |
var $numLayers = 0;
|
| 33 |
|
| 34 |
function CapabilitiesParser( )
|
| 35 |
{
|
| 36 |
$this->parser = xml_parser_create( "UTF-8" );
|
| 37 |
xml_parser_set_option( $this->parser, XML_OPTION_CASE_FOLDING, 0 );
|
| 38 |
xml_set_element_handler( $this->parser, array(&$this,"_startElement"), array(&$this,"_endElement") );
|
| 39 |
xml_set_character_data_handler( $this->parser, array(&$this,"_characterData") );
|
| 40 |
$this->layer_level = 0;
|
| 41 |
$this->layer_props = array();
|
| 42 |
$this->layer_props[ $this->layer_level ] = array( );
|
| 43 |
$this->layers = array( );
|
| 44 |
}
|
| 45 |
|
| 46 |
function free_parser( )
|
| 47 |
{
|
| 48 |
xml_parser_free( $this->parser );
|
| 49 |
}
|
| 50 |
|
| 51 |
function inSomething()
|
| 52 |
{
|
| 53 |
return $this->inAttribution || $this->inStyle !== false;
|
| 54 |
}
|
| 55 |
|
| 56 |
function parse( $capabilities, $cbLayer = NULL, $cbLayerParams = NULL )
|
| 57 |
{
|
| 58 |
$this->cbLayer = $cbLayer;
|
| 59 |
$this->cbLayerParams = $cbLayerParams;
|
| 60 |
return xml_parse( $this->parser, $capabilities, TRUE );
|
| 61 |
}
|
| 62 |
|
| 63 |
function _startElement( $parser, $name, $attrs )
|
| 64 |
{
|
| 65 |
//print '_startElement ' . $name . "\n";
|
| 66 |
if( ! $this->root )
|
| 67 |
{
|
| 68 |
$this->root = $name;
|
| 69 |
$this->version = $attrs['version'];
|
| 70 |
$this->layer_props[ $this->layer_level ]['wms_version'] = $this->version;
|
| 71 |
}
|
| 72 |
else
|
| 73 |
{
|
| 74 |
$this->path .= '/' . $name;
|
| 75 |
}
|
| 76 |
$this->element = $name;
|
| 77 |
|
| 78 |
switch( $name )
|
| 79 |
{
|
| 80 |
case 'Attribution':
|
| 81 |
$this->inAttribution = true;
|
| 82 |
break;
|
| 83 |
case 'Style':
|
| 84 |
$this->inStyle = true;
|
| 85 |
// $this->layer_props[ $this->layer_level ]['Style'] = array( );
|
| 86 |
break;
|
| 87 |
case 'OnlineResource':
|
| 88 |
if( $this->inStyle !== false )
|
| 89 |
{
|
| 90 |
$this->layer_props[ $this->layer_level ]['Style'][ $this->inStyle ] = $attrs['xlink:href'];
|
| 91 |
}
|
| 92 |
break;
|
| 93 |
case 'Layer':
|
| 94 |
// the previous layer is a parent layer of the new one
|
| 95 |
if( ! isset($this->layer_props[ $this->layer_level ]['layer_id']) )
|
| 96 |
{
|
| 97 |
$this->layer_props[ $this->layer_level ]['layer_id'] = $this->numLayers++;
|
| 98 |
if( $this->cbLayer )
|
| 99 |
eval( $this->cbLayer . "(\$this->layer_props[\$this->layer_level], \$this->cbLayerParams );" );
|
| 100 |
else
|
| 101 |
{
|
| 102 |
// print $this->layer_level . ' : ' . var_export($this->layer_props[ $this->layer_level ],true) . '<br>';
|
| 103 |
$this->layers[] = $this->layer_props[ $this->layer_level ];
|
| 104 |
}
|
| 105 |
}
|
| 106 |
else
|
| 107 |
{
|
| 108 |
// adjust layer of $this->layer_props[ $this->layer_level ]
|
| 109 |
// count child layers?
|
| 110 |
}
|
| 111 |
$this->layer_level += 1;
|
| 112 |
// copy layer_props for new layer level and merge new attrs
|
| 113 |
// @todo: merge only inherited props!
|
| 114 |
$inherited_values = array();
|
| 115 |
$inherited_properties = array( 'Style', 'SRS', 'LatLonBoundingBox', 'BoundingBox', 'queryable', 'opaque', 'cascaded' );
|
| 116 |
foreach( $inherited_properties as $prop )
|
| 117 |
{
|
| 118 |
if( isset($this->layer_props[ $this->layer_level - 1 ][$prop]) )
|
| 119 |
$inherited_values[$prop] = $this->layer_props[ $this->layer_level - 1 ][$prop];
|
| 120 |
}
|
| 121 |
$this->layer_props[ $this->layer_level ] = array_merge( $inherited_values, $attrs );
|
| 122 |
|
| 123 |
// print var_export( array($name,$attrs,$this->layer_level), true ) . '<br>';
|
| 124 |
break;
|
| 125 |
case 'LatLonBoundingBox';
|
| 126 |
if( $this->layer_level > 0 )
|
| 127 |
$this->layer_props[ $this->layer_level][ $name ] = $attrs;
|
| 128 |
break;
|
| 129 |
case 'BoundingBox':
|
| 130 |
if( $this->layer_level > 0 )
|
| 131 |
{
|
| 132 |
if( ! isset($this->layer_props[ $this->layer_level][ $name ]) )
|
| 133 |
$this->layer_props[ $this->layer_level][ $name ] = array();
|
| 134 |
$SRS = $attrs['SRS'];
|
| 135 |
unset( $attrs['SRS'] );
|
| 136 |
$this->layer_props[ $this->layer_level][ $name ][$SRS] = $attrs;
|
| 137 |
}
|
| 138 |
break;
|
| 139 |
default:
|
| 140 |
// print $this->path . ':' . var_export($attrs,true) . '<br>';
|
| 141 |
break;
|
| 142 |
}
|
| 143 |
// print $this->path . ': attrs = ' . var_export($attrs,true) . '<br>';
|
| 144 |
}
|
| 145 |
|
| 146 |
function _characterData( $parser, $data )
|
| 147 |
{
|
| 148 |
//print '_characterData ' . $this->element . ':' . $data . "\n";
|
| 149 |
if( $this->element != '' )
|
| 150 |
{
|
| 151 |
$text = trim($data);
|
| 152 |
if( $this->layer_level == 0 )
|
| 153 |
{
|
| 154 |
switch( $this->element )
|
| 155 |
{
|
| 156 |
case 'Title':
|
| 157 |
case 'Name':
|
| 158 |
case 'Abstract':
|
| 159 |
//print 'abstract=' . $test . '<br/>';
|
| 160 |
$this->layer_props[ $this->layer_level][ $this->element ] .= $text;
|
| 161 |
break;
|
| 162 |
}
|
| 163 |
}
|
| 164 |
if( $this->layer_level > 0 && ! $this->inSomething() )
|
| 165 |
{
|
| 166 |
switch( $this->element )
|
| 167 |
{
|
| 168 |
case 'Title':
|
| 169 |
case 'Name':
|
| 170 |
// if not a style name!!
|
| 171 |
$this->layer_props[ $this->layer_level][ $this->element ] .= $text;
|
| 172 |
break;
|
| 173 |
case 'Abstract':
|
| 174 |
//print 'abstract=' . $test . '<br/>';
|
| 175 |
// if not a style name!!
|
| 176 |
$this->layer_props[ $this->layer_level][ $this->element ] .= $text;
|
| 177 |
break;
|
| 178 |
case 'SRS':
|
| 179 |
if( isset($this->layer_props[ $this->layer_level][ $this->element ])
|
| 180 |
&& $this->layer_props[ $this->layer_level][ $this->element ] != '' )
|
| 181 |
{
|
| 182 |
$this->layer_props[ $this->layer_level][ $this->element ] .= ' ';
|
| 183 |
}
|
| 184 |
$this->layer_props[ $this->layer_level][ $this->element ] .= $text;
|
| 185 |
break;
|
| 186 |
}
|
| 187 |
}
|
| 188 |
else if( $this->inStyle !== false )
|
| 189 |
{
|
| 190 |
switch( $this->element )
|
| 191 |
{
|
| 192 |
case 'Name':
|
| 193 |
$this->inStyle .= $text;
|
| 194 |
break;
|
| 195 |
}
|
| 196 |
}
|
| 197 |
// print $this->path . ':<b>' . $this->element . '=' . $text . '|</b><br>';
|
| 198 |
// print '---> ' . $this->layer_level . '/' . var_export($this->layer_props[ $this->layer_level],true) . '<br>';
|
| 199 |
|
| 200 |
//$this->element = ''; // previously here instead of at start of _endElement
|
| 201 |
}
|
| 202 |
}
|
| 203 |
|
| 204 |
function _endElement( $parser, $name )
|
| 205 |
{
|
| 206 |
//print '_endElement ' . $name . "\n";
|
| 207 |
$this->element = ''; // instead of at end of _characterData function
|
| 208 |
|
| 209 |
$this->path = substr( $this->path, 0, -(1+strlen($name)) );
|
| 210 |
switch( $name )
|
| 211 |
{
|
| 212 |
case 'Layer':
|
| 213 |
if( ! $this->layer_props[ $this->layer_level ]['layer_id'] )
|
| 214 |
{
|
| 215 |
$this->layer_props[ $this->layer_level ]['layer_id'] = $this->numLayers++;
|
| 216 |
if( $this->cbLayer )
|
| 217 |
eval( $this->cbLayer . "(\$this->layer_props[\$this->layer_level], \$this->cbLayerParams );" );
|
| 218 |
else
|
| 219 |
{
|
| 220 |
// print $this->layer_level . ' : ' . var_export($this->layer_props[ $this->layer_level ],true) . '<br>';
|
| 221 |
$this->layers[] = $this->layer_props[ $this->layer_level ];
|
| 222 |
}
|
| 223 |
}
|
| 224 |
$this->layer_level -= 1;
|
| 225 |
array_pop( $this->layer_props );
|
| 226 |
break;
|
| 227 |
case 'Attribution':
|
| 228 |
$this->inAttribution = false;
|
| 229 |
break;
|
| 230 |
case 'Style':
|
| 231 |
$this->inStyle = false;
|
| 232 |
break;
|
| 233 |
default:
|
| 234 |
break;
|
| 235 |
}
|
| 236 |
}
|
| 237 |
|
| 238 |
} // CapabilitiesParser
|
| 239 |
|
| 240 |
?>
|
Parent Directory
| 
Revision Log
| 
Revision Graph