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[Server] WMS GetContext refactoring
This commit is contained in:
rldhont
parent
95a5ccefab
commit
0f00a5235d
@ -20,9 +20,36 @@
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***************************************************************************/
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#include "qgswmsutils.h"
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#include "qgswmsgetcontext.h"
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#include "qgsserverprojectutils.h"
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#include "qgslayertreenode.h"
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#include "qgslayertreegroup.h"
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#include "qgslayertreelayer.h"
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#include "qgslayertreemodel.h"
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#include "qgslayertree.h"
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#include "qgsmaplayerstylemanager.h"
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#include "qgscsexception.h"
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namespace QgsWms
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{
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namespace
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{
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void appendOwsLayerStyles( QDomDocument &doc, QDomElement &layerElem, QgsMapLayer *currentLayer );
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void appendOwsLayersFromTreeGroup( QDomDocument &doc,
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QDomElement &parentLayer,
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QgsServerInterface *serverIface,
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const QgsProject *project,
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const QgsServerRequest &request,
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const QgsLayerTreeGroup *layerTreeGroup,
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QgsRectangle &combinedBBox,
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const QString &strGroup );
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void appendOwsGeneralAndResourceList( QDomDocument &doc, QDomElement &parentElement,
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QgsServerInterface *serverIface, const QgsProject *project,
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const QgsServerRequest &request );
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}
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void writeGetContext( QgsServerInterface *serverIface, const QgsProject *project,
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const QString &version, const QgsServerRequest &request,
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@ -40,7 +67,7 @@ namespace QgsWms
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{
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Q_UNUSED( version );
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QgsWmsConfigParser *configParser = getConfigParser( serverIface );
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//QgsWmsConfigParser *configParser = getConfigParser( serverIface );
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QDomDocument doc;
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QDomProcessingInstruction xmlDeclaration = doc.createProcessingInstruction( QStringLiteral( "xml" ),
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@ -64,11 +91,374 @@ namespace QgsWms
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owsContextElem.setAttribute( QStringLiteral( "version" ), QStringLiteral( "0.3.1" ) );
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doc.appendChild( owsContextElem );
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QString hrefString = serviceUrl( request, project ).toString( QUrl::FullyDecoded );
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configParser->owsGeneralAndResourceList( owsContextElem, doc, hrefString );
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appendOwsGeneralAndResourceList( doc, owsContextElem, serverIface, project, request );
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return doc;
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}
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namespace
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{
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void appendOwsGeneralAndResourceList( QDomDocument &doc, QDomElement &parentElement,
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QgsServerInterface *serverIface, const QgsProject *project,
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const QgsServerRequest &request )
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{
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parentElement.setAttribute( QStringLiteral( "id" ), "ows-context-" + project->fileInfo().baseName() );
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// OWSContext General element
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QDomElement generalElem = doc.createElement( QStringLiteral( "General" ) );
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// OWSContext Window element
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QDomElement windowElem = doc.createElement( QStringLiteral( "Window" ) );
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windowElem.setAttribute( QStringLiteral( "height" ), QStringLiteral( "600" ) );
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windowElem.setAttribute( QStringLiteral( "width" ), QStringLiteral( "800" ) );
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generalElem.appendChild( windowElem );
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//OWS title
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//why not use project title ?
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QString title = QgsServerProjectUtils::owsServiceTitle( *project );
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if ( !title.isEmpty() )
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{
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QDomElement titleElem = doc.createElement( QStringLiteral( "ows:Title" ) );
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QDomText titleText = doc.createTextNode( title );
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titleElem.appendChild( titleText );
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generalElem.appendChild( titleElem );
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}
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//OWS abstract
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QString abstract = QgsServerProjectUtils::owsServiceAbstract( *project );
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if ( !abstract.isEmpty() )
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{
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QDomElement abstractElem = doc.createElement( QStringLiteral( "ows:Abstract" ) );
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QDomText abstractText = doc.createCDATASection( abstract );
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abstractElem.appendChild( abstractText );
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generalElem.appendChild( abstractElem );
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}
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//OWS Keywords
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QStringList keywords = QgsServerProjectUtils::owsServiceKeywords( *project );
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if ( !keywords.isEmpty() )
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{
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bool sia2045 = QgsServerProjectUtils::wmsInfoFormatSia2045( *project );
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QDomElement keywordsElem = doc.createElement( QStringLiteral( "ows:Keywords" ) );
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for ( int i = 0; i < keywords.size(); ++i )
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{
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QString keyword = keywords.at( i );
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if ( !keyword.isEmpty() )
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{
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QDomElement keywordElem = doc.createElement( QStringLiteral( "ows:Keyword" ) );
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QDomText keywordText = doc.createTextNode( keyword );
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keywordElem.appendChild( keywordText );
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if ( sia2045 )
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{
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keywordElem.setAttribute( QStringLiteral( "vocabulary" ), QStringLiteral( "SIA_Geo405" ) );
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}
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keywordsElem.appendChild( keywordElem );
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}
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}
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generalElem.appendChild( keywordsElem );
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}
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// OWSContext General element is complete
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parentElement.appendChild( generalElem );
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// OWSContext ResourceList element
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QDomElement resourceListElem = doc.createElement( QStringLiteral( "ResourceList" ) );
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const QgsLayerTree *projectLayerTreeRoot = project->layerTreeRoot();
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QgsRectangle combinedBBox;
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appendOwsLayersFromTreeGroup( doc, resourceListElem, serverIface, project, request, projectLayerTreeRoot, combinedBBox, QString() );
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parentElement.appendChild( resourceListElem );
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// OWSContext BoundingBox
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QgsCoordinateReferenceSystem projectCrs = project->crs();
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QgsRectangle mapRect = QgsServerProjectUtils::wmsExtent( *project );
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if ( mapRect.isEmpty() )
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{
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mapRect = combinedBBox;
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}
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QDomElement bboxElem = doc.createElement( QStringLiteral( "ows:BoundingBox" ) );
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bboxElem.setAttribute( QStringLiteral( "crs" ), projectCrs.authid() );
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if ( projectCrs.hasAxisInverted() )
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{
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mapRect.invert();
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}
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QDomElement lowerCornerElem = doc.createElement( QStringLiteral( "ows:LowerCorner" ) );
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QDomText lowerCornerText = doc.createTextNode( QString::number( mapRect.xMinimum() ) + " " + QString::number( mapRect.yMinimum() ) );
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lowerCornerElem.appendChild( lowerCornerText );
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bboxElem.appendChild( lowerCornerElem );
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QDomElement upperCornerElem = doc.createElement( QStringLiteral( "ows:UpperCorner" ) );
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QDomText upperCornerText = doc.createTextNode( QString::number( mapRect.xMaximum() ) + " " + QString::number( mapRect.yMaximum() ) );
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upperCornerElem.appendChild( upperCornerText );
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bboxElem.appendChild( upperCornerElem );
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generalElem.appendChild( bboxElem );
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}
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void appendOwsLayersFromTreeGroup( QDomDocument &doc,
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QDomElement &parentLayer,
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QgsServerInterface *serverIface,
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const QgsProject *project,
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const QgsServerRequest &request,
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const QgsLayerTreeGroup *layerTreeGroup,
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QgsRectangle &combinedBBox,
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const QString &strGroup )
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{
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QStringList restrictedLayers = QgsServerProjectUtils::wmsRestrictedLayers( *project );
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QList< QgsLayerTreeNode * > layerTreeGroupChildren = layerTreeGroup->children();
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for ( int i = 0; i < layerTreeGroupChildren.size(); ++i )
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{
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QgsLayerTreeNode *treeNode = layerTreeGroupChildren.at( i );
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if ( treeNode->nodeType() == QgsLayerTreeNode::NodeGroup )
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{
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QgsLayerTreeGroup *treeGroupChild = static_cast<QgsLayerTreeGroup *>( treeNode );
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QString name = treeGroupChild->name();
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if ( restrictedLayers.contains( name ) ) //unpublished group
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{
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continue;
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}
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QString group;
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if ( strGroup.isEmpty() )
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{
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group = name;
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}
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else
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{
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group = strGroup + "/" + name;
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}
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appendOwsLayersFromTreeGroup( doc, parentLayer, serverIface, project, request, treeGroupChild, combinedBBox, group );
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}
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else
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{
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QgsLayerTreeLayer *treeLayer = static_cast<QgsLayerTreeLayer *>( treeNode );
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QgsMapLayer *l = treeLayer->layer();
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if ( restrictedLayers.contains( l->name() ) ) //unpublished layer
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{
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continue;
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}
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QgsAccessControl *accessControl = serverIface->accessControls();
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if ( accessControl && !accessControl->layerReadPermission( l ) )
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{
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continue;
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}
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QDomElement layerElem = doc.createElement( QStringLiteral( "Layer" ) );
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// queryable layer
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if ( project->nonIdentifiableLayers().contains( l->id() ) )
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{
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layerElem.setAttribute( QStringLiteral( "queryable" ), QStringLiteral( "false" ) );
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}
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else
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{
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layerElem.setAttribute( QStringLiteral( "queryable" ), QStringLiteral( "true" ) );
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}
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// visibility
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if ( treeLayer->itemVisibilityChecked() )
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{
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layerElem.setAttribute( QStringLiteral( "hidden" ), QStringLiteral( "true" ) );
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}
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else
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{
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layerElem.setAttribute( QStringLiteral( "hidden" ), QStringLiteral( "false" ) );
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}
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// layer group
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if ( !strGroup.isEmpty() )
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{
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layerElem.setAttribute( QStringLiteral( "group" ), strGroup );
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}
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// Because Layer transparency is used for the rendering
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// OWSContext Layer opacity is set to 1
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layerElem.setAttribute( QStringLiteral( "opacity" ), 1 );
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QString wmsName = l->name();
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if ( QgsServerProjectUtils::wmsUseLayerIds( *project ) )
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{
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wmsName = l->id();
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}
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else if ( !l->shortName().isEmpty() )
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{
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wmsName = l->shortName();
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}
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// layer wms name
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layerElem.setAttribute( QStringLiteral( "name" ), wmsName );
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// define an id based on layer wms name
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layerElem.setAttribute( QStringLiteral( "id" ), wmsName.replace( QRegExp( "[\\W]" ), QStringLiteral( "_" ) ) );
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// layer title
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QDomElement titleElem = doc.createElement( QStringLiteral( "ows:Title" ) );
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QString title = l->title();
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if ( title.isEmpty() )
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{
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title = l->name();
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}
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QDomText titleText = doc.createTextNode( title );
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titleElem.appendChild( titleText );
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layerElem.appendChild( titleElem );
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// WMS GetMap output format
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QDomElement formatElem = doc.createElement( QStringLiteral( "ows:OutputFormat" ) );
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QDomText formatText = doc.createTextNode( QStringLiteral( "image/png" ) );
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formatElem.appendChild( formatText );
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layerElem.appendChild( formatElem );
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// Get WMS service URL for Server Element
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QUrl href = serviceUrl( request, project );
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//href needs to be a prefix
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QString hrefString = href.toString( QUrl::FullyDecoded );
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hrefString.append( href.hasQuery() ? "&" : "?" );
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// COntext Server Element with WMS service URL
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QDomElement serverElem = doc.createElement( QStringLiteral( "Server" ) );
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serverElem.setAttribute( QStringLiteral( "service" ), QStringLiteral( "urn:ogc:serviceType:WMS" ) );
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serverElem.setAttribute( QStringLiteral( "version" ), QStringLiteral( "1.3.0" ) );
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serverElem.setAttribute( QStringLiteral( "default" ), QStringLiteral( "true" ) );
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QDomElement orServerElem = doc.createElement( QStringLiteral( "OnlineResource" ) );
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orServerElem.setAttribute( QStringLiteral( "xlink:href" ), hrefString );
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serverElem.appendChild( orServerElem );
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layerElem.appendChild( serverElem );
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QString abstract = l->abstract();
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if ( !abstract.isEmpty() )
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{
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QDomElement abstractElem = doc.createElement( QStringLiteral( "ows:Abstract" ) );
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QDomText abstractText = doc.createTextNode( abstract );
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abstractElem.appendChild( abstractText );
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layerElem.appendChild( abstractElem );
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}
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//min/max scale denominatorScaleBasedVisibility
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if ( l->hasScaleBasedVisibility() )
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{
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QString minScaleString = QString::number( l->minimumScale() );
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QString maxScaleString = QString::number( l->maximumScale() );
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QDomElement minScaleElem = doc.createElement( QStringLiteral( "sld:MinScaleDenominator" ) );
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QDomText minScaleText = doc.createTextNode( minScaleString );
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minScaleElem.appendChild( minScaleText );
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layerElem.appendChild( minScaleElem );
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QDomElement maxScaleElem = doc.createElement( QStringLiteral( "sld:MaxScaleDenominator" ) );
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QDomText maxScaleText = doc.createTextNode( maxScaleString );
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maxScaleElem.appendChild( maxScaleText );
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layerElem.appendChild( maxScaleElem );
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}
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// Style list
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appendOwsLayerStyles( doc, layerElem, l );
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//keyword list
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if ( !l->keywordList().isEmpty() )
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{
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QStringList keywordStringList = l->keywordList().split( QStringLiteral( "," ) );
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bool sia2045 = QgsServerProjectUtils::wmsInfoFormatSia2045( *project );
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QDomElement keywordsElem = doc.createElement( QStringLiteral( "ows:Keywords" ) );
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for ( int i = 0; i < keywordStringList.size(); ++i )
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{
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QDomElement keywordElem = doc.createElement( QStringLiteral( "ows:Keyword" ) );
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QDomText keywordText = doc.createTextNode( keywordStringList.at( i ).trimmed() );
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keywordElem.appendChild( keywordText );
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if ( sia2045 )
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{
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keywordElem.setAttribute( QStringLiteral( "vocabulary" ), QStringLiteral( "SIA_Geo405" ) );
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}
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keywordsElem.appendChild( keywordElem );
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}
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layerElem.appendChild( keywordsElem );
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}
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// layer data URL
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QString dataUrl = l->dataUrl();
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if ( !dataUrl.isEmpty() )
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{
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QDomElement dataUrlElem = doc.createElement( QStringLiteral( "DataURL" ) );
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QString dataUrlFormat = l->dataUrlFormat();
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dataUrlElem.setAttribute( QStringLiteral( "format" ), dataUrlFormat );
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QDomElement dataORElem = doc.createElement( QStringLiteral( "OnlineResource" ) );
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dataORElem.setAttribute( QStringLiteral( "xmlns:xlink" ), QStringLiteral( "http://www.w3.org/1999/xlink" ) );
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dataORElem.setAttribute( QStringLiteral( "xlink:type" ), QStringLiteral( "simple" ) );
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dataORElem.setAttribute( QStringLiteral( "xlink:href" ), dataUrl );
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dataUrlElem.appendChild( dataORElem );
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layerElem.appendChild( dataUrlElem );
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}
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// layer metadata URL
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QString metadataUrl = l->metadataUrl();
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if ( !metadataUrl.isEmpty() )
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{
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QDomElement metaUrlElem = doc.createElement( QStringLiteral( "MetadataURL" ) );
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QString metadataUrlFormat = l->metadataUrlFormat();
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metaUrlElem.setAttribute( QStringLiteral( "format" ), metadataUrlFormat );
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QDomElement metaUrlORElem = doc.createElement( QStringLiteral( "OnlineResource" ) );
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metaUrlORElem.setAttribute( QStringLiteral( "xmlns:xlink" ), QStringLiteral( "http://www.w3.org/1999/xlink" ) );
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metaUrlORElem.setAttribute( QStringLiteral( "xlink:type" ), QStringLiteral( "simple" ) );
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metaUrlORElem.setAttribute( QStringLiteral( "xlink:href" ), metadataUrl );
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metaUrlElem.appendChild( metaUrlORElem );
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layerElem.appendChild( metaUrlElem );
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}
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// update combineBBox
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try
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{
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QgsCoordinateTransform t( l->crs(), project->crs() );
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QgsRectangle BBox = t.transformBoundingBox( l->extent() );
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if ( combinedBBox.isEmpty() )
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{
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combinedBBox = BBox;
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}
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else
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{
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combinedBBox.combineExtentWith( BBox );
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}
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}
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catch ( const QgsCsException &cse )
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{
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Q_UNUSED( cse );
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}
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if ( parentLayer.hasChildNodes() )
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{
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parentLayer.insertBefore( layerElem, parentLayer.firstChild() );
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}
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else
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{
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parentLayer.appendChild( layerElem );
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}
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}// end of treeNode type
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}// end of for
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}
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void appendOwsLayerStyles( QDomDocument &doc, QDomElement &layerElem, QgsMapLayer *currentLayer )
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{
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Q_FOREACH ( QString styleName, currentLayer->styleManager()->styles() )
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{
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if ( styleName.isEmpty() )
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styleName = EMPTY_STYLE_NAME;
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QDomElement styleListElem = doc.createElement( QStringLiteral( "StyleList" ) );
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//only one default style in project file mode
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QDomElement styleElem = doc.createElement( QStringLiteral( "Style" ) );
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styleElem.setAttribute( QStringLiteral( "current" ), QStringLiteral( "true" ) );
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QDomElement styleNameElem = doc.createElement( QStringLiteral( "Name" ) );
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QDomText styleNameText = doc.createTextNode( styleName );
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styleNameElem.appendChild( styleNameText );
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QDomElement styleTitleElem = doc.createElement( QStringLiteral( "Title" ) );
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QDomText styleTitleText = doc.createTextNode( styleName );
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styleTitleElem.appendChild( styleTitleText );
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styleElem.appendChild( styleNameElem );
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styleElem.appendChild( styleTitleElem );
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styleListElem.appendChild( styleElem );
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layerElem.appendChild( styleListElem );
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}
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}
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}
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} // samespace QgsWms
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