Exemple #1
0
def geoserver_post_save(instance, sender, **kwargs):
    """Save keywords to GeoServer

       The way keywords are implemented requires the layer
       to be saved to the database before accessing them.
    """

    if type(instance) is ResourceBase:
        if hasattr(instance, 'layer'):
            instance = instance.layer
        else:
            return

    if instance.storeType == "remoteStore":
        # Save layer attributes
        set_attributes(instance)
        return

    try:
        gs_resource = gs_catalog.get_resource(instance.name,
                                              store=instance.store,
                                              workspace=instance.workspace)
    except socket_error as serr:
        if serr.errno != errno.ECONNREFUSED:
            # Not the error we are looking for, re-raise
            raise serr
        # If the connection is refused, take it easy.
        return

    if gs_resource is None:
        return

    if settings.RESOURCE_PUBLISHING:
        if instance.is_published != gs_resource.advertised:
            if getattr(ogc_server_settings, "BACKEND_WRITE_ENABLED", True):
                gs_resource.advertised = instance.is_published
                gs_catalog.save(gs_resource)

    if any(instance.keyword_list()):
        gs_resource.keywords = instance.keyword_list()
        # gs_resource should only be called if
        # ogc_server_settings.BACKEND_WRITE_ENABLED == True
        if getattr(ogc_server_settings, "BACKEND_WRITE_ENABLED", True):
            gs_catalog.save(gs_resource)

    bbox = gs_resource.latlon_bbox
    dx = float(bbox[1]) - float(bbox[0])
    dy = float(bbox[3]) - float(bbox[2])

    dataAspect = 1 if dy == 0 else dx / dy

    height = 550
    width = int(height * dataAspect)

    # Set download links for WMS, WCS or WFS and KML
    links = wms_links(ogc_server_settings.public_url + 'wms?',
                      instance.typename.encode('utf-8'), instance.bbox_string,
                      instance.srid, height, width)

    for ext, name, mime, wms_url in links:
        Link.objects.get_or_create(resource=instance.resourcebase_ptr,
                                   name=ugettext(name),
                                   defaults=dict(
                                       extension=ext,
                                       url=wms_url,
                                       mime=mime,
                                       link_type='image',
                                   ))

    if instance.storeType == "dataStore":
        links = wfs_links(ogc_server_settings.public_url + 'wfs?',
                          instance.typename.encode('utf-8'))
        for ext, name, mime, wfs_url in links:
            if mime == 'SHAPE-ZIP':
                name = 'Zipped Shapefile'
            Link.objects.get_or_create(resource=instance.resourcebase_ptr,
                                       url=wfs_url,
                                       defaults=dict(
                                           extension=ext,
                                           name=name,
                                           mime=mime,
                                           url=wfs_url,
                                           link_type='data',
                                       ))

        if gs_resource.store.type and gs_resource.store.type.lower() == 'geogig' and \
                gs_resource.store.connection_parameters.get('geogig_repository'):

            repo_url = '{url}geogig/{geogig_repository}'.format(
                url=ogc_server_settings.public_url,
                geogig_repository=gs_resource.store.connection_parameters.get(
                    'geogig_repository'))

            path = gs_resource.dom.findall('nativeName')

            if path:
                path = 'path={path}'.format(path=path[0].text)

            Link.objects.get_or_create(resource=instance.resourcebase_ptr,
                                       url=repo_url,
                                       defaults=dict(extension='html',
                                                     name='Clone in GeoGig',
                                                     mime='text/xml',
                                                     link_type='html'))

            command_url = lambda command: "{repo_url}/{command}.json?{path}".format(
                repo_url=repo_url, path=path, command=command)

            Link.objects.get_or_create(resource=instance.resourcebase_ptr,
                                       url=command_url('log'),
                                       defaults=dict(extension='json',
                                                     name='GeoGig log',
                                                     mime='application/json',
                                                     link_type='html'))

            Link.objects.get_or_create(resource=instance.resourcebase_ptr,
                                       url=command_url('statistics'),
                                       defaults=dict(extension='json',
                                                     name='GeoGig statistics',
                                                     mime='application/json',
                                                     link_type='html'))

    elif instance.storeType == 'coverageStore':
        # FIXME(Ariel): This works for public layers, does it work for restricted too?
        # would those end up with no geotiff links, like, forever?
        permissions = instance.get_all_level_info()

        instance.set_permissions(
            {'users': {
                'AnonymousUser': ['view_resourcebase']
            }})

        try:
            # Potentially 3 dimensions can be returned by the grid if there is a z
            # axis.  Since we only want width/height, slice to the second
            # dimension
            covWidth, covHeight = get_coverage_grid_extent(instance)[:2]
        except GeoNodeException as e:
            msg = _('Could not create a download link for layer.')
            logger.warn(msg, e)
        else:

            links = wcs_links(ogc_server_settings.public_url + 'wcs?',
                              instance.typename.encode('utf-8'),
                              bbox=gs_resource.native_bbox[:-1],
                              crs=gs_resource.native_bbox[-1],
                              height=str(covHeight),
                              width=str(covWidth))

            for ext, name, mime, wcs_url in links:
                Link.objects.get_or_create(resource=instance.resourcebase_ptr,
                                           url=wcs_url,
                                           defaults=dict(
                                               extension=ext,
                                               name=name,
                                               mime=mime,
                                               link_type='data',
                                           ))

        instance.set_permissions(permissions)

    kml_reflector_link_download = ogc_server_settings.public_url + "wms/kml?" + \
        urllib.urlencode({'layers': instance.typename.encode('utf-8'), 'mode': "download"})

    Link.objects.get_or_create(resource=instance.resourcebase_ptr,
                               url=kml_reflector_link_download,
                               defaults=dict(
                                   extension='kml',
                                   name=_("KML"),
                                   mime='text/xml',
                                   link_type='data',
                               ))

    kml_reflector_link_view = ogc_server_settings.public_url + "wms/kml?" + \
        urllib.urlencode({'layers': instance.typename.encode('utf-8'), 'mode': "refresh"})

    Link.objects.get_or_create(resource=instance.resourcebase_ptr,
                               url=kml_reflector_link_view,
                               defaults=dict(
                                   extension='kml',
                                   name="View in Google Earth",
                                   mime='text/xml',
                                   link_type='data',
                               ))

    tile_url = ('%sgwc/service/gmaps?' % ogc_server_settings.public_url +
                'layers=%s' % instance.typename.encode('utf-8') +
                '&zoom={z}&x={x}&y={y}' + '&format=image/png8')

    Link.objects.get_or_create(resource=instance.resourcebase_ptr,
                               url=tile_url,
                               defaults=dict(
                                   extension='tiles',
                                   name=_("Tiles"),
                                   mime='image/png',
                                   link_type='image',
                               ))

    html_link_url = '%s%s' % (settings.SITEURL[:-1],
                              instance.get_absolute_url())

    Link.objects.get_or_create(resource=instance.resourcebase_ptr,
                               url=html_link_url,
                               defaults=dict(
                                   extension='html',
                                   name=instance.typename,
                                   mime='text/html',
                                   link_type='html',
                               ))

    params = {
        'layers': instance.typename.encode('utf-8'),
        'format': 'image/png8',
        'width': 200,
        'height': 150,
    }

    # Avoid using urllib.urlencode here because it breaks the url.
    # commas and slashes in values get encoded and then cause trouble
    # with the WMS parser.
    p = "&".join("%s=%s" % item for item in params.items())

    thumbnail_remote_url = ogc_server_settings.PUBLIC_LOCATION + \
        "wms/reflect?" + p

    thumbnail_create_url = ogc_server_settings.LOCATION + \
        "wms/reflect?" + p

    create_thumbnail(instance,
                     thumbnail_remote_url,
                     thumbnail_create_url,
                     ogc_client=http_client)

    legend_url = ogc_server_settings.PUBLIC_LOCATION + \
        'wms?request=GetLegendGraphic&format=image/png&WIDTH=20&HEIGHT=20&LAYER=' + \
        instance.typename + '&legend_options=fontAntiAliasing:true;fontSize:12;forceLabels:on'

    Link.objects.get_or_create(resource=instance.resourcebase_ptr,
                               url=legend_url,
                               defaults=dict(
                                   extension='png',
                                   name=_('Legend'),
                                   url=legend_url,
                                   mime='image/png',
                                   link_type='image',
                               ))

    ogc_wms_path = '%s/wms' % instance.workspace
    ogc_wms_url = urljoin(ogc_server_settings.public_url, ogc_wms_path)
    ogc_wms_name = 'OGC WMS: %s Service' % instance.workspace
    Link.objects.get_or_create(resource=instance.resourcebase_ptr,
                               url=ogc_wms_url,
                               defaults=dict(
                                   extension='html',
                                   name=ogc_wms_name,
                                   url=ogc_wms_url,
                                   mime='text/html',
                                   link_type='OGC:WMS',
                               ))

    if instance.storeType == "dataStore":
        ogc_wfs_path = '%s/wfs' % instance.workspace
        ogc_wfs_url = urljoin(ogc_server_settings.public_url, ogc_wfs_path)
        ogc_wfs_name = 'OGC WFS: %s Service' % instance.workspace
        Link.objects.get_or_create(resource=instance.resourcebase_ptr,
                                   url=ogc_wfs_url,
                                   defaults=dict(
                                       extension='html',
                                       name=ogc_wfs_name,
                                       url=ogc_wfs_url,
                                       mime='text/html',
                                       link_type='OGC:WFS',
                                   ))

    if instance.storeType == "coverageStore":
        ogc_wcs_path = '%s/wcs' % instance.workspace
        ogc_wcs_url = urljoin(ogc_server_settings.public_url, ogc_wcs_path)
        ogc_wcs_name = 'OGC WCS: %s Service' % instance.workspace
        Link.objects.get_or_create(resource=instance.resourcebase_ptr,
                                   url=ogc_wcs_url,
                                   defaults=dict(
                                       extension='html',
                                       name=ogc_wcs_name,
                                       url=ogc_wcs_url,
                                       mime='text/html',
                                       link_type='OGC:WCS',
                                   ))

    # remove links that belong to and old address

    for link in instance.link_set.all():
        if not urlparse(settings.SITEURL).hostname == urlparse(
                link.url).hostname and not urlparse(
                    ogc_server_settings.public_url).hostname == urlparse(
                        link.url).hostname:
            link.delete()

    # Save layer attributes
    set_attributes(instance)

    # Save layer styles
    set_styles(instance, gs_catalog)
Exemple #2
0
def geoserver_post_save(instance, sender, **kwargs):
    """Save keywords to GeoServer

       The way keywords are implemented requires the layer
       to be saved to the database before accessing them.
    """

    if instance.storeType == "remoteStore":
        #Save layer attributes
        set_attributes(instance)
        return

    url = ogc_server_settings.internal_rest

    try:
        gs_resource = gs_catalog.get_resource(instance.name,
                                              store=instance.store,
                                              workspace=instance.workspace)
    except socket_error as serr:
        if serr.errno != errno.ECONNREFUSED:
            # Not the error we are looking for, re-raise
            raise serr
        # If the connection is refused, take it easy.
        return

    if gs_resource is None:
        return

    if any(instance.keyword_list()):
        gs_resource.keywords = instance.keyword_list()

        #gs_resource should only be called if ogc_server_settings.BACKEND_WRITE_ENABLED == True
        if getattr(ogc_server_settings, "BACKEND_WRITE_ENABLED", True):
            gs_catalog.save(gs_resource)

    bbox = gs_resource.latlon_bbox
    dx = float(bbox[1]) - float(bbox[0])
    dy = float(bbox[3]) - float(bbox[2])

    dataAspect = 1 if dy == 0 else dx / dy

    height = 550
    width = int(height * dataAspect)

    # Set download links for WMS, WCS or WFS and KML

    links = wms_links(ogc_server_settings.public_url + 'wms?',
                      instance.typename.encode('utf-8'), instance.bbox_string,
                      instance.srid, height, width)

    for ext, name, mime, wms_url in links:
        Link.objects.get_or_create(resource=instance.resourcebase_ptr,
                                   name=ugettext(name),
                                   defaults=dict(
                                       extension=ext,
                                       url=wms_url,
                                       mime=mime,
                                       link_type='image',
                                   ))

    if instance.storeType == "dataStore":
        links = wfs_links(ogc_server_settings.public_url + 'wfs?',
                          instance.typename.encode('utf-8'))
        for ext, name, mime, wfs_url in links:
            if mime == 'SHAPE-ZIP':
                name = 'Zipped Shapefile'
            Link.objects.get_or_create(resource=instance.resourcebase_ptr,
                                       url=wfs_url,
                                       defaults=dict(
                                           extension=ext,
                                           name=name,
                                           mime=mime,
                                           url=wfs_url,
                                           link_type='data',
                                       ))

    elif instance.storeType == 'coverageStore':
        #FIXME(Ariel): This works for public layers, does it work for restricted too?
        # would those end up with no geotiff links, like, forever?
        permissions = instance.get_all_level_info()

        instance.set_permissions(
            {'users': {
                'AnonymousUser': ['view_resourcebase']
            }})

        try:
            #Potentially 3 dimensions can be returned by the grid if there is a z
            #axis.  Since we only want width/height, slice to the second dimension
            covWidth, covHeight = get_coverage_grid_extent(instance)[:2]
        except GeoNodeException, e:
            msg = _('Could not create a download link for layer.')
            logger.warn(msg, e)
        else:

            links = wcs_links(ogc_server_settings.public_url + 'wcs?',
                              instance.typename.encode('utf-8'),
                              bbox=gs_resource.native_bbox[:-1],
                              crs=gs_resource.native_bbox[-1],
                              height=str(covHeight),
                              width=str(covWidth))

            for ext, name, mime, wcs_url in links:
                Link.objects.get_or_create(resource=instance.resourcebase_ptr,
                                           url=wcs_url,
                                           defaults=dict(
                                               extension=ext,
                                               name=name,
                                               mime=mime,
                                               link_type='data',
                                           ))

        instance.set_permissions(permissions)
Exemple #3
0
def geoserver_post_save(instance, sender, **kwargs):
    """Save keywords to GeoServer

       The way keywords are implemented requires the layer
       to be saved to the database before accessing them.
    """
    url = ogc_server_settings.internal_rest

    try:
        gs_resource = gs_catalog.get_resource(instance.name)
    except socket_error as serr:
        if serr.errno != errno.ECONNREFUSED:
            # Not the error we are looking for, re-raise
            raise serr
        # If the connection is refused, take it easy.
        return

    if any(instance.keyword_list()):
        gs_resource.keywords = instance.keyword_list()

        # gs_resource should only be called if ogc_server_settings.BACKEND_WRITE_ENABLED == True
        if getattr(ogc_server_settings, "BACKEND_WRITE_ENABLED", True):
            gs_catalog.save(gs_resource)

    bbox = gs_resource.latlon_bbox
    dx = float(bbox[1]) - float(bbox[0])
    dy = float(bbox[3]) - float(bbox[2])

    dataAspect = 1 if dy == 0 else dx / dy

    height = 550
    width = int(height * dataAspect)

    # Set download links for WMS, WCS or WFS and KML

    links = wms_links(
        ogc_server_settings.public_url + "wms?",
        instance.typename.encode("utf-8"),
        instance.bbox_string,
        instance.srid,
        height,
        width,
    )

    for ext, name, mime, wms_url in links:
        Link.objects.get_or_create(
            resource=instance.resourcebase_ptr,
            name=ugettext(name),
            defaults=dict(extension=ext, url=wms_url, mime=mime, link_type="image"),
        )

    if instance.storeType == "dataStore":
        links = wfs_links(ogc_server_settings.public_url + "wfs?", instance.typename.encode("utf-8"))
        for ext, name, mime, wfs_url in links:
            if mime == "SHAPE-ZIP":
                name = "Zipped Shapefile"
            Link.objects.get_or_create(
                resource=instance.resourcebase_ptr,
                url=wfs_url,
                defaults=dict(extension=ext, name=name, mime=mime, url=wfs_url, link_type="data"),
            )

    elif instance.storeType == "coverageStore":
        # FIXME(Ariel): This works for public layers, does it work for restricted too?
        # would those end up with no geotiff links, like, forever?
        permissions = {}
        permissions["anonymous"] = instance.get_gen_level(ANONYMOUS_USERS)
        permissions["authenticated"] = instance.get_gen_level(AUTHENTICATED_USERS)
        instance.set_gen_level(ANONYMOUS_USERS, "layer_readonly")

        try:
            # Potentially 3 dimensions can be returned by the grid if there is a z
            # axis.  Since we only want width/height, slice to the second dimension
            covWidth, covHeight = get_coverage_grid_extent(instance)[:2]
        except GeoNodeException, e:
            msg = _("Could not create a download link for layer.")
            logger.warn(msg, e)
        else:

            links = wcs_links(
                ogc_server_settings.public_url + "wcs?",
                instance.typename.encode("utf-8"),
                bbox=gs_resource.native_bbox[:-1],
                crs=gs_resource.native_bbox[-1],
                height=str(covHeight),
                width=str(covWidth),
            )

            for ext, name, mime, wcs_url in links:
                Link.objects.get_or_create(
                    resource=instance.resourcebase_ptr,
                    url=wcs_url,
                    defaults=dict(extension=ext, name=name, mime=mime, link_type="data"),
                )

        instance.set_gen_level(ANONYMOUS_USERS, permissions["anonymous"])
        instance.set_gen_level(AUTHENTICATED_USERS, permissions["authenticated"])
Exemple #4
0
def geoserver_post_save(instance, sender, **kwargs):
    """Save keywords to GeoServer

       The way keywords are implemented requires the layer
       to be saved to the database before accessing them.
    """
    url = ogc_server_settings.internal_rest

    try:
        gs_resource = gs_catalog.get_resource(instance.name)
    except (FailedRequestError, EnvironmentError) as e:
        msg = ('Could not connect to geoserver at "%s"'
               'to save information for layer "%s"' %
               (ogc_server_settings.LOCATION, instance.name.encode('utf-8')))
        logger.warn(msg, e)
        # If geoserver is not online, there is no need to continue
        return

    # If there is no resource returned it could mean one of two things:
    # a) There is a synchronization problem in geoserver
    # b) The unit tests are running and another geoserver is running in the
    # background.
    # For both cases it is sensible to stop processing the layer
    if gs_resource is None:
        logger.warn('Could not get geoserver resource for %s' % instance)
        return

    gs_resource.keywords = instance.keyword_list()
    #gs_resource should only be called if ogc_server_settings.BACKEND_WRITE_ENABLED == True
    if getattr(ogc_server_settings, "BACKEND_WRITE_ENABLED", True):
        gs_catalog.save(gs_resource)

    bbox = gs_resource.latlon_bbox
    dx = float(bbox[1]) - float(bbox[0])
    dy = float(bbox[3]) - float(bbox[2])

    dataAspect = 1 if dy == 0 else dx / dy

    height = 550
    width = int(height * dataAspect)

    # Set download links for WMS, WCS or WFS and KML

    links = wms_links(ogc_server_settings.public_url + 'wms?',
                      instance.typename.encode('utf-8'), instance.bbox_string,
                      instance.srid, height, width)

    for ext, name, mime, wms_url in links:
        Link.objects.get_or_create(resource=instance.resourcebase_ptr,
                                   name=ugettext(name),
                                   defaults=dict(
                                       extension=ext,
                                       url=wms_url,
                                       mime=mime,
                                       link_type='image',
                                   ))

    if instance.storeType == "dataStore":
        links = wfs_links(ogc_server_settings.public_url + 'wfs?',
                          instance.typename.encode('utf-8'))
        for ext, name, mime, wfs_url in links:
            if mime == 'SHAPE-ZIP':
                name = 'Zipped Shapefile'
            Link.objects.get_or_create(resource=instance.resourcebase_ptr,
                                       url=wfs_url,
                                       defaults=dict(
                                           extension=ext,
                                           name=name,
                                           mime=mime,
                                           url=wfs_url,
                                           link_type='data',
                                       ))

    elif instance.storeType == 'coverageStore':
        #FIXME(Ariel): This works for public layers, does it work for restricted too?
        # would those end up with no geotiff links, like, forever?
        permissions = {}
        permissions['anonymous'] = instance.get_gen_level(ANONYMOUS_USERS)
        permissions['authenticated'] = instance.get_gen_level(
            AUTHENTICATED_USERS)
        instance.set_gen_level(ANONYMOUS_USERS, 'layer_readonly')

        #Potentially 3 dimensions can be returned by the grid if there is a z
        #axis.  Since we only want width/height, slice to the second dimension
        covWidth, covHeight = get_coverage_grid_extent(instance)[:2]
        links = wcs_links(ogc_server_settings.public_url + 'wcs?',
                          instance.typename.encode('utf-8'),
                          bbox=gs_resource.native_bbox[:-1],
                          crs=gs_resource.native_bbox[-1],
                          height=str(covHeight),
                          width=str(covWidth))
        for ext, name, mime, wcs_url in links:
            Link.objects.get_or_create(resource=instance.resourcebase_ptr,
                                       url=wcs_url,
                                       defaults=dict(
                                           extension=ext,
                                           name=name,
                                           mime=mime,
                                           link_type='data',
                                       ))

        instance.set_gen_level(ANONYMOUS_USERS, permissions['anonymous'])
        instance.set_gen_level(AUTHENTICATED_USERS,
                               permissions['authenticated'])

    kml_reflector_link_download = ogc_server_settings.public_url + "wms/kml?" + urllib.urlencode(
        {
            'layers': instance.typename.encode('utf-8'),
            'mode': "download"
        })

    Link.objects.get_or_create(resource=instance.resourcebase_ptr,
                               url=kml_reflector_link_download,
                               defaults=dict(
                                   extension='kml',
                                   name=_("KML"),
                                   mime='text/xml',
                                   link_type='data',
                               ))

    kml_reflector_link_view = ogc_server_settings.public_url + "wms/kml?" + urllib.urlencode(
        {
            'layers': instance.typename.encode('utf-8'),
            'mode': "refresh"
        })

    Link.objects.get_or_create(resource=instance.resourcebase_ptr,
                               url=kml_reflector_link_view,
                               defaults=dict(
                                   extension='kml',
                                   name="View in Google Earth",
                                   mime='text/xml',
                                   link_type='data',
                               ))

    tile_url = ('%sgwc/service/gmaps?' % ogc_server_settings.public_url +
                'layers=%s' % instance.typename.encode('utf-8') +
                '&zoom={z}&x={x}&y={y}' + '&format=image/png8')

    Link.objects.get_or_create(resource=instance.resourcebase_ptr,
                               url=tile_url,
                               defaults=dict(
                                   extension='tiles',
                                   name=_("Tiles"),
                                   mime='image/png',
                                   link_type='image',
                               ))

    wms_path = '%s/%s/wms' % (instance.workspace, instance.name)
    ows_url = urljoin(ogc_server_settings.public_url, wms_path)

    Link.objects.get_or_create(resource=instance.resourcebase_ptr,
                               url=ows_url,
                               defaults=dict(
                                   extension='html',
                                   name=_("OWS"),
                                   url=ows_url,
                                   mime='text/html',
                                   link_type='OGC:WMS',
                               ))

    html_link_url = '%s%s' % (settings.SITEURL[:-1],
                              instance.get_absolute_url())

    Link.objects.get_or_create(resource=instance.resourcebase_ptr,
                               url=html_link_url,
                               defaults=dict(
                                   extension='html',
                                   name=instance.typename,
                                   mime='text/html',
                                   link_type='html',
                               ))

    params = {
        'layers': instance.typename.encode('utf-8'),
        'format': 'image/png8',
        'width': 200,
        'height': 150,
    }

    # Avoid using urllib.urlencode here because it breaks the url.
    # commas and slashes in values get encoded and then cause trouble
    # with the WMS parser.
    p = "&".join("%s=%s" % item for item in params.items())

    thumbnail_url = ogc_server_settings.LOCATION + "wms/reflect?" + p

    Link.objects.get_or_create(resource=instance.resourcebase_ptr,
                               url=thumbnail_url,
                               defaults=dict(
                                   extension='png',
                                   name=_("Remote Thumbnail"),
                                   mime='image/png',
                                   link_type='image',
                               ))

    # Download thumbnail and save it locally.
    resp, image = http_client.request(thumbnail_url)

    if 'ServiceException' in image or resp.status < 200 or resp.status > 299:
        msg = 'Unable to obtain thumbnail: %s' % image
        logger.debug(msg)
        # Replace error message with None.
        image = None

    if image is not None:
        #Clean any orphan Thumbnail before
        Thumbnail.objects.filter(resourcebase__id=None).delete()
        thumbnail, created = Thumbnail.objects.get_or_create(
            resourcebase__id=instance.id)
        thumbnail.thumb_spec = thumbnail_url
        thumbnail.save_thumb(image, instance._thumbnail_path())

        Link.objects.get_or_create(resource=instance.resourcebase_ptr,
                                   url=settings.SITEURL +
                                   instance._thumbnail_path(),
                                   defaults=dict(
                                       extension='png',
                                       name=_("Thumbnail"),
                                       mime='image/png',
                                       link_type='image',
                                   ))

    ogc_wms_url = ogc_server_settings.public_url + 'wms?'
    Link.objects.get_or_create(resource=instance.resourcebase_ptr,
                               url=ogc_wms_url,
                               defaults=dict(
                                   extension='html',
                                   name=instance.name,
                                   url=ogc_wms_url,
                                   mime='text/html',
                                   link_type='OGC:WMS',
                               ))

    if instance.storeType == "dataStore":
        ogc_wfs_url = ogc_server_settings.public_url + 'wfs?'
        Link.objects.get_or_create(resource=instance.resourcebase_ptr,
                                   url=ogc_wfs_url,
                                   defaults=dict(
                                       extension='html',
                                       name=instance.name,
                                       url=ogc_wfs_url,
                                       mime='text/html',
                                       link_type='OGC:WFS',
                                   ))

    if instance.storeType == "coverageStore":
        ogc_wcs_url = ogc_server_settings.public_url + 'wcs?'
        Link.objects.get_or_create(resource=instance.resourcebase_ptr,
                                   url=ogc_wcs_url,
                                   defaults=dict(
                                       extension='html',
                                       name=instance.name,
                                       url=ogc_wcs_url,
                                       mime='text/html',
                                       link_type='OGC:WCS',
                                   ))

    #remove links that belong to and old address

    for link in instance.link_set.all():
        if not urlparse(settings.SITEURL).hostname == urlparse(link.url).hostname and not \
                    urlparse(ogc_server_settings.public_url).hostname == urlparse(link.url).hostname:
            link.delete()

    #Save layer attributes
    set_attributes(instance)

    #Save layer styles
    set_styles(instance, gs_catalog)
Exemple #5
0
def geoserver_post_save(instance, sender, **kwargs):
    """Save keywords to GeoServer

       The way keywords are implemented requires the layer
       to be saved to the database before accessing them.
    """

    if instance.storeType == "remoteStore":
        # Save layer attributes
        set_attributes(instance)
        return

    try:
        gs_resource = gs_catalog.get_resource(
            instance.name,
            store=instance.store,
            workspace=instance.workspace)
    except socket_error as serr:
        if serr.errno != errno.ECONNREFUSED:
            # Not the error we are looking for, re-raise
            raise serr
        # If the connection is refused, take it easy.
        return

    if gs_resource is None:
        return

    if any(instance.keyword_list()):
        gs_resource.keywords = instance.keyword_list()

        # gs_resource should only be called if
        # ogc_server_settings.BACKEND_WRITE_ENABLED == True
        if getattr(ogc_server_settings, "BACKEND_WRITE_ENABLED", True):
            gs_catalog.save(gs_resource)

    bbox = gs_resource.latlon_bbox
    dx = float(bbox[1]) - float(bbox[0])
    dy = float(bbox[3]) - float(bbox[2])

    dataAspect = 1 if dy == 0 else dx / dy

    height = 550
    width = int(height * dataAspect)

    # Set download links for WMS, WCS or WFS and KML

    links = wms_links(ogc_server_settings.public_url + 'wms?',
                      instance.typename.encode('utf-8'), instance.bbox_string,
                      instance.srid, height, width)

    for ext, name, mime, wms_url in links:
        Link.objects.get_or_create(resource=instance.resourcebase_ptr,
                                   name=ugettext(name),
                                   defaults=dict(
                                       extension=ext,
                                       url=wms_url,
                                       mime=mime,
                                       link_type='image',
                                   )
                                   )

    if instance.storeType == "dataStore":
        links = wfs_links(
            ogc_server_settings.public_url +
            'wfs?',
            instance.typename.encode('utf-8'))
        for ext, name, mime, wfs_url in links:
            if mime == 'SHAPE-ZIP':
                name = 'Zipped Shapefile'
            Link.objects.get_or_create(resource=instance.resourcebase_ptr,
                                       url=wfs_url,
                                       defaults=dict(
                                           extension=ext,
                                           name=name,
                                           mime=mime,
                                           url=wfs_url,
                                           link_type='data',
                                       )
                                       )

        if gs_resource.store.type.lower() == 'geogit':
            repo_url = '{url}geogit/{workspace}:{store}'.format(
                url=ogc_server_settings.public_url,
                workspace=instance.workspace,
                store=instance.store)

            path = gs_resource.dom.findall('nativeName')

            if path:
                path = 'path={path}'.format(path=path[0].text)

            Link.objects.get_or_create(resource=instance.resourcebase_ptr,
                                       url=repo_url,
                                       defaults=dict(extension='html',
                                                     name='Clone in GeoGit',
                                                     mime='text/xml',
                                                     link_type='html'
                                                     )
                                       )

            command_url = lambda command: "{repo_url}/{command}.json?{path}".format(
                repo_url=repo_url,
                path=path,
                command=command)

            Link.objects.get_or_create(resource=instance.resourcebase_ptr,
                                       url=command_url('log'),
                                       defaults=dict(extension='json',
                                                     name='GeoGit log',
                                                     mime='application/json',
                                                     link_type='html'
                                                     )
                                       )

            Link.objects.get_or_create(resource=instance.resourcebase_ptr,
                                       url=command_url('statistics'),
                                       defaults=dict(extension='json',
                                                     name='GeoGit statistics',
                                                     mime='application/json',
                                                     link_type='html'
                                                     )
                                       )

    elif instance.storeType == 'coverageStore':
        # FIXME(Ariel): This works for public layers, does it work for restricted too?
        # would those end up with no geotiff links, like, forever?
        permissions = instance.get_all_level_info()

        instance.set_permissions(
            {'users': {'AnonymousUser': ['view_resourcebase']}})

        try:
            # Potentially 3 dimensions can be returned by the grid if there is a z
            # axis.  Since we only want width/height, slice to the second
            # dimension
            covWidth, covHeight = get_coverage_grid_extent(instance)[:2]
        except GeoNodeException as e:
            msg = _('Could not create a download link for layer.')
            logger.warn(msg, e)
        else:

            links = wcs_links(ogc_server_settings.public_url + 'wcs?',
                              instance.typename.encode('utf-8'),
                              bbox=gs_resource.native_bbox[:-1],
                              crs=gs_resource.native_bbox[-1],
                              height=str(covHeight),
                              width=str(covWidth))

            for ext, name, mime, wcs_url in links:
                Link.objects.get_or_create(resource=instance.resourcebase_ptr,
                                           url=wcs_url,
                                           defaults=dict(
                                               extension=ext,
                                               name=name,
                                               mime=mime,
                                               link_type='data',
                                           )
                                           )

        instance.set_permissions(permissions)

    kml_reflector_link_download = ogc_server_settings.public_url + "wms/kml?" + \
        urllib.urlencode({'layers': instance.typename.encode('utf-8'), 'mode': "download"})

    Link.objects.get_or_create(resource=instance.resourcebase_ptr,
                               url=kml_reflector_link_download,
                               defaults=dict(
                                   extension='kml',
                                   name=_("KML"),
                                   mime='text/xml',
                                   link_type='data',
                               )
                               )

    kml_reflector_link_view = ogc_server_settings.public_url + "wms/kml?" + \
        urllib.urlencode({'layers': instance.typename.encode('utf-8'), 'mode': "refresh"})

    Link.objects.get_or_create(resource=instance.resourcebase_ptr,
                               url=kml_reflector_link_view,
                               defaults=dict(
                                   extension='kml',
                                   name="View in Google Earth",
                                   mime='text/xml',
                                   link_type='data',
                               )
                               )

    tile_url = ('%sgwc/service/gmaps?' % ogc_server_settings.public_url +
                'layers=%s' % instance.typename.encode('utf-8') +
                '&zoom={z}&x={x}&y={y}' +
                '&format=image/png8'
                )

    Link.objects.get_or_create(resource=instance.resourcebase_ptr,
                               url=tile_url,
                               defaults=dict(
                                   extension='tiles',
                                   name=_("Tiles"),
                                   mime='image/png',
                                   link_type='image',
                               )
                               )

    wms_path = '%s/%s/wms' % (instance.workspace, instance.name)
    ows_url = urljoin(ogc_server_settings.public_url, wms_path)

    Link.objects.get_or_create(resource=instance.resourcebase_ptr,
                               url=ows_url,
                               defaults=dict(
                                   extension='html',
                                   name=_("OWS"),
                                   url=ows_url,
                                   mime='text/html',
                                   link_type='OGC:WMS',
                               )
                               )

    html_link_url = '%s%s' % (
        settings.SITEURL[:-1], instance.get_absolute_url())

    Link.objects.get_or_create(resource=instance.resourcebase_ptr,
                               url=html_link_url,
                               defaults=dict(
                                   extension='html',
                                   name=instance.typename,
                                   mime='text/html',
                                   link_type='html',
                               )
                               )

    params = {
        'layers': instance.typename.encode('utf-8'),
        'format': 'image/png8',
        'width': 200,
        'height': 150,
    }

    # Avoid using urllib.urlencode here because it breaks the url.
    # commas and slashes in values get encoded and then cause trouble
    # with the WMS parser.
    p = "&".join("%s=%s" % item for item in params.items())

    thumbnail_remote_url = ogc_server_settings.PUBLIC_LOCATION + \
        "wms/reflect?" + p
    thumbail_create_url = ogc_server_settings.LOCATION + \
        "wms/reflect?" + p

    # This is a workaround for development mode where cookies are not shared and the layer is not public so
    # not visible through geoserver
    if settings.DEBUG:
        from geonode.security.views import _perms_info_json
        current_perms = _perms_info_json(instance.get_self_resource())
        instance.set_default_permissions()

    create_thumbnail(instance, thumbnail_remote_url, thumbail_create_url)

    if settings.DEBUG:
        instance.set_permissions(json.loads(current_perms))

    legend_url = ogc_server_settings.PUBLIC_LOCATION + 'wms?request=GetLegendGraphic&format=image/png&WIDTH=20&HEIGHT=20&LAYER=' + \
        instance.typename + '&legend_options=fontAntiAliasing:true;fontSize:12;forceLabels:on'

    Link.objects.get_or_create(resource=instance.resourcebase_ptr,
                               url=legend_url,
                               defaults=dict(
                                   extension='png',
                                   name=_('Legend'),
                                   url=legend_url,
                                   mime='image/png',
                                   link_type='image',
                               )
                               )

    ogc_wms_url = ogc_server_settings.public_url + 'wms?'
    Link.objects.get_or_create(resource=instance.resourcebase_ptr,
                               url=ogc_wms_url,
                               defaults=dict(
                                   extension='html',
                                   name=instance.name,
                                   url=ogc_wms_url,
                                   mime='text/html',
                                   link_type='OGC:WMS',
                               )
                               )

    if instance.storeType == "dataStore":
        ogc_wfs_url = ogc_server_settings.public_url + 'wfs?'
        Link.objects.get_or_create(resource=instance.resourcebase_ptr,
                                   url=ogc_wfs_url,
                                   defaults=dict(
                                       extension='html',
                                       name=instance.name,
                                       url=ogc_wfs_url,
                                       mime='text/html',
                                       link_type='OGC:WFS',
                                   )
                                   )

    if instance.storeType == "coverageStore":
        ogc_wcs_url = ogc_server_settings.public_url + 'wcs?'
        Link.objects.get_or_create(resource=instance.resourcebase_ptr,
                                   url=ogc_wcs_url,
                                   defaults=dict(
                                       extension='html',
                                       name=instance.name,
                                       url=ogc_wcs_url,
                                       mime='text/html',
                                       link_type='OGC:WCS',
                                   )
                                   )

    # remove links that belong to and old address

    for link in instance.link_set.all():
        if not urlparse(
            settings.SITEURL).hostname == urlparse(
            link.url).hostname and not urlparse(
            ogc_server_settings.public_url).hostname == urlparse(
                link.url).hostname:
            link.delete()

    # Save layer attributes
    set_attributes(instance)

    # Save layer styles
    set_styles(instance, gs_catalog)
Exemple #6
0
def geoserver_post_save(instance, sender, **kwargs):
    """Save keywords to GeoServer

       The way keywords are implemented requires the layer
       to be saved to the database before accessing them.
    """
    url = ogc_server_settings.internal_rest

    try:
        gs_resource = gs_catalog.get_resource(instance.name)
    except socket_error as serr:
        if serr.errno != errno.ECONNREFUSED:
            # Not the error we are looking for, re-raise
            raise serr
        # If the connection is refused, take it easy.
        return

    if any(instance.keyword_list()):
        gs_resource.keywords = instance.keyword_list()

        #gs_resource should only be called if ogc_server_settings.BACKEND_WRITE_ENABLED == True
        if getattr(ogc_server_settings, "BACKEND_WRITE_ENABLED", True):
            gs_catalog.save(gs_resource)

    bbox = gs_resource.latlon_bbox
    dx = float(bbox[1]) - float(bbox[0])
    dy = float(bbox[3]) - float(bbox[2])

    dataAspect = 1 if dy == 0 else dx / dy

    height = 550
    width = int(height * dataAspect)

    # Set download links for WMS, WCS or WFS and KML

    links = wms_links(ogc_server_settings.public_url + 'wms?',
                      instance.typename.encode('utf-8'), instance.bbox_string,
                      instance.srid, height, width)

    for ext, name, mime, wms_url in links:
        Link.objects.get_or_create(resource=instance.resourcebase_ptr,
                                   name=ugettext(name),
                                   defaults=dict(
                                       extension=ext,
                                       url=wms_url,
                                       mime=mime,
                                       link_type='image',
                                   ))

    if instance.storeType == "dataStore":
        links = wfs_links(ogc_server_settings.public_url + 'wfs?',
                          instance.typename.encode('utf-8'))
        for ext, name, mime, wfs_url in links:
            if mime == 'SHAPE-ZIP':
                name = 'Zipped Shapefile'
            Link.objects.get_or_create(resource=instance.resourcebase_ptr,
                                       url=wfs_url,
                                       defaults=dict(
                                           extension=ext,
                                           name=name,
                                           mime=mime,
                                           url=wfs_url,
                                           link_type='data',
                                       ))

    elif instance.storeType == 'coverageStore':
        #FIXME(Ariel): This works for public layers, does it work for restricted too?
        # would those end up with no geotiff links, like, forever?
        permissions = {}
        permissions['anonymous'] = instance.get_gen_level(ANONYMOUS_USERS)
        permissions['authenticated'] = instance.get_gen_level(
            AUTHENTICATED_USERS)
        instance.set_gen_level(ANONYMOUS_USERS, 'layer_readonly')

        #Potentially 3 dimensions can be returned by the grid if there is a z
        #axis.  Since we only want width/height, slice to the second dimension
        covWidth, covHeight = get_coverage_grid_extent(instance)[:2]
        links = wcs_links(ogc_server_settings.public_url + 'wcs?',
                          instance.typename.encode('utf-8'),
                          bbox=gs_resource.native_bbox[:-1],
                          crs=gs_resource.native_bbox[-1],
                          height=str(covHeight),
                          width=str(covWidth))
        for ext, name, mime, wcs_url in links:
            Link.objects.get_or_create(resource=instance.resourcebase_ptr,
                                       url=wcs_url,
                                       defaults=dict(
                                           extension=ext,
                                           name=name,
                                           mime=mime,
                                           link_type='data',
                                       ))

        instance.set_gen_level(ANONYMOUS_USERS, permissions['anonymous'])
        instance.set_gen_level(AUTHENTICATED_USERS,
                               permissions['authenticated'])

    kml_reflector_link_download = ogc_server_settings.public_url + "wms/kml?" + urllib.urlencode(
        {
            'layers': instance.typename.encode('utf-8'),
            'mode': "download"
        })

    Link.objects.get_or_create(resource=instance.resourcebase_ptr,
                               url=kml_reflector_link_download,
                               defaults=dict(
                                   extension='kml',
                                   name=_("KML"),
                                   mime='text/xml',
                                   link_type='data',
                               ))

    kml_reflector_link_view = ogc_server_settings.public_url + "wms/kml?" + urllib.urlencode(
        {
            'layers': instance.typename.encode('utf-8'),
            'mode': "refresh"
        })

    Link.objects.get_or_create(resource=instance.resourcebase_ptr,
                               url=kml_reflector_link_view,
                               defaults=dict(
                                   extension='kml',
                                   name="View in Google Earth",
                                   mime='text/xml',
                                   link_type='data',
                               ))

    tile_url = ('%sgwc/service/gmaps?' % ogc_server_settings.public_url +
                'layers=%s' % instance.typename.encode('utf-8') +
                '&zoom={z}&x={x}&y={y}' + '&format=image/png8')

    Link.objects.get_or_create(resource=instance.resourcebase_ptr,
                               url=tile_url,
                               defaults=dict(
                                   extension='tiles',
                                   name=_("Tiles"),
                                   mime='image/png',
                                   link_type='image',
                               ))

    wms_path = '%s/%s/wms' % (instance.workspace, instance.name)
    ows_url = urljoin(ogc_server_settings.public_url, wms_path)

    Link.objects.get_or_create(resource=instance.resourcebase_ptr,
                               url=ows_url,
                               defaults=dict(
                                   extension='html',
                                   name=_("OWS"),
                                   url=ows_url,
                                   mime='text/html',
                                   link_type='OGC:WMS',
                               ))

    html_link_url = '%s%s' % (settings.SITEURL[:-1],
                              instance.get_absolute_url())

    Link.objects.get_or_create(resource=instance.resourcebase_ptr,
                               url=html_link_url,
                               defaults=dict(
                                   extension='html',
                                   name=instance.typename,
                                   mime='text/html',
                                   link_type='html',
                               ))

    params = {
        'layers': instance.typename.encode('utf-8'),
        'format': 'image/png8',
        'width': 200,
        'height': 150,
    }

    # Avoid using urllib.urlencode here because it breaks the url.
    # commas and slashes in values get encoded and then cause trouble
    # with the WMS parser.
    p = "&".join("%s=%s" % item for item in params.items())

    thumbnail_remote_url = ogc_server_settings.PUBLIC_LOCATION + "wms/reflect?" + p

    create_thumbnail(instance, thumbnail_remote_url)

    legend_url = ogc_server_settings.PUBLIC_LOCATION + 'wms?request=GetLegendGraphic&format=image/png&WIDTH=20&HEIGHT=20&LAYER=' + instance.typename + '&legend_options=fontAntiAliasing:true;fontSize:12;forceLabels:on'

    Link.objects.get_or_create(resource=instance.resourcebase_ptr,
                               url=legend_url,
                               defaults=dict(
                                   extension='png',
                                   name=_('Legend'),
                                   url=legend_url,
                                   mime='image/png',
                                   link_type='image',
                               ))

    ogc_wms_url = ogc_server_settings.public_url + 'wms?'
    Link.objects.get_or_create(resource=instance.resourcebase_ptr,
                               url=ogc_wms_url,
                               defaults=dict(
                                   extension='html',
                                   name=instance.name,
                                   url=ogc_wms_url,
                                   mime='text/html',
                                   link_type='OGC:WMS',
                               ))

    if instance.storeType == "dataStore":
        ogc_wfs_url = ogc_server_settings.public_url + 'wfs?'
        Link.objects.get_or_create(resource=instance.resourcebase_ptr,
                                   url=ogc_wfs_url,
                                   defaults=dict(
                                       extension='html',
                                       name=instance.name,
                                       url=ogc_wfs_url,
                                       mime='text/html',
                                       link_type='OGC:WFS',
                                   ))

    if instance.storeType == "coverageStore":
        ogc_wcs_url = ogc_server_settings.public_url + 'wcs?'
        Link.objects.get_or_create(resource=instance.resourcebase_ptr,
                                   url=ogc_wcs_url,
                                   defaults=dict(
                                       extension='html',
                                       name=instance.name,
                                       url=ogc_wcs_url,
                                       mime='text/html',
                                       link_type='OGC:WCS',
                                   ))

    #remove links that belong to and old address

    for link in instance.link_set.all():
        if not urlparse(settings.SITEURL).hostname == urlparse(link.url).hostname and not \
                    urlparse(ogc_server_settings.public_url).hostname == urlparse(link.url).hostname:
            link.delete()

    #Save layer attributes
    set_attributes(instance)

    #Save layer styles
    set_styles(instance, gs_catalog)
Exemple #7
0
def geoserver_post_save(instance, sender, **kwargs):
    """Save keywords to GeoServer

       The way keywords are implemented requires the layer
       to be saved to the database before accessing them.
    """

    if type(instance) is ResourceBase:
        if hasattr(instance, "layer"):
            instance = instance.layer
        else:
            return

    if instance.storeType == "remoteStore":
        # Save layer attributes
        set_attributes(instance)
        return

    if not getattr(instance, "gs_resource", None):
        try:
            gs_resource = gs_catalog.get_resource(instance.name, store=instance.store, workspace=instance.workspace)
        except socket_error as serr:
            if serr.errno != errno.ECONNREFUSED:
                # Not the error we are looking for, re-raise
                raise serr
            # If the connection is refused, take it easy.
            return
    else:
        gs_resource = instance.gs_resource

    if gs_resource is None:
        return

    if settings.RESOURCE_PUBLISHING:
        if instance.is_published != gs_resource.advertised:
            if getattr(ogc_server_settings, "BACKEND_WRITE_ENABLED", True):
                gs_resource.advertised = instance.is_published
                gs_catalog.save(gs_resource)

    if any(instance.keyword_list()):
        gs_resource.keywords = instance.keyword_list()
        # gs_resource should only be called if
        # ogc_server_settings.BACKEND_WRITE_ENABLED == True
        if getattr(ogc_server_settings, "BACKEND_WRITE_ENABLED", True):
            gs_catalog.save(gs_resource)

    bbox = gs_resource.latlon_bbox
    dx = float(bbox[1]) - float(bbox[0])
    dy = float(bbox[3]) - float(bbox[2])

    dataAspect = 1 if dy == 0 else dx / dy

    height = 550
    width = int(height * dataAspect)

    # Set download links for WMS, WCS or WFS and KML
    links = wms_links(
        ogc_server_settings.public_url + "wms?",
        instance.typename.encode("utf-8"),
        instance.bbox_string,
        instance.srid,
        height,
        width,
    )

    for ext, name, mime, wms_url in links:
        Link.objects.get_or_create(
            resource=instance.resourcebase_ptr,
            name=ugettext(name),
            defaults=dict(extension=ext, url=wms_url, mime=mime, link_type="image"),
        )

    if instance.storeType == "dataStore":
        links = wfs_links(ogc_server_settings.public_url + "wfs?", instance.typename.encode("utf-8"))
        for ext, name, mime, wfs_url in links:
            if mime == "SHAPE-ZIP":
                name = "Zipped Shapefile"
            Link.objects.get_or_create(
                resource=instance.resourcebase_ptr,
                url=wfs_url,
                defaults=dict(extension=ext, name=name, mime=mime, url=wfs_url, link_type="data"),
            )

        if (
            gs_resource.store.type
            and gs_resource.store.type.lower() == "geogig"
            and gs_resource.store.connection_parameters.get("geogig_repository")
        ):

            repo_url = "{url}geogig/{geogig_repository}".format(
                url=ogc_server_settings.public_url,
                geogig_repository=gs_resource.store.connection_parameters.get("geogig_repository"),
            )

            path = gs_resource.dom.findall("nativeName")

            if path:
                path = "path={path}".format(path=path[0].text)

            Link.objects.get_or_create(
                resource=instance.resourcebase_ptr,
                url=repo_url,
                defaults=dict(extension="html", name="Clone in GeoGig", mime="text/xml", link_type="html"),
            )

            def command_url(command):
                return "{repo_url}/{command}.json?{path}".format(repo_url=repo_url, path=path, command=command)

            Link.objects.get_or_create(
                resource=instance.resourcebase_ptr,
                url=command_url("log"),
                defaults=dict(extension="json", name="GeoGig log", mime="application/json", link_type="html"),
            )

            Link.objects.get_or_create(
                resource=instance.resourcebase_ptr,
                url=command_url("statistics"),
                defaults=dict(extension="json", name="GeoGig statistics", mime="application/json", link_type="html"),
            )

    elif instance.storeType == "coverageStore":
        # FIXME(Ariel): This works for public layers, does it work for restricted too?
        # would those end up with no geotiff links, like, forever?
        permissions = instance.get_all_level_info()

        instance.set_permissions({"users": {"AnonymousUser": ["view_resourcebase"]}})

        try:
            # Potentially 3 dimensions can be returned by the grid if there is a z
            # axis.  Since we only want width/height, slice to the second
            # dimension
            covWidth, covHeight = get_coverage_grid_extent(instance)[:2]
        except GeoNodeException as e:
            msg = _("Could not create a download link for layer.")
            try:
                # HACK: The logger on signals throws an exception
                logger.warn(msg, e)
            except:
                pass
        else:

            links = wcs_links(
                ogc_server_settings.public_url + "wcs?",
                instance.typename.encode("utf-8"),
                bbox=gs_resource.native_bbox[:-1],
                crs=gs_resource.native_bbox[-1],
                height=str(covHeight),
                width=str(covWidth),
            )

            for ext, name, mime, wcs_url in links:
                Link.objects.get_or_create(
                    resource=instance.resourcebase_ptr,
                    url=wcs_url,
                    defaults=dict(extension=ext, name=name, mime=mime, link_type="data"),
                )

        instance.set_permissions(permissions)

    kml_reflector_link_download = (
        ogc_server_settings.public_url
        + "wms/kml?"
        + urllib.urlencode({"layers": instance.typename.encode("utf-8"), "mode": "download"})
    )

    Link.objects.get_or_create(
        resource=instance.resourcebase_ptr,
        url=kml_reflector_link_download,
        defaults=dict(extension="kml", name="KML", mime="text/xml", link_type="data"),
    )

    kml_reflector_link_view = (
        ogc_server_settings.public_url
        + "wms/kml?"
        + urllib.urlencode({"layers": instance.typename.encode("utf-8"), "mode": "refresh"})
    )

    Link.objects.get_or_create(
        resource=instance.resourcebase_ptr,
        url=kml_reflector_link_view,
        defaults=dict(extension="kml", name="View in Google Earth", mime="text/xml", link_type="data"),
    )

    tile_url = (
        "%sgwc/service/gmaps?" % ogc_server_settings.public_url
        + "layers=%s" % instance.typename.encode("utf-8")
        + "&zoom={z}&x={x}&y={y}"
        + "&format=image/png8"
    )

    Link.objects.get_or_create(
        resource=instance.resourcebase_ptr,
        url=tile_url,
        defaults=dict(extension="tiles", name="Tiles", mime="image/png", link_type="image"),
    )

    html_link_url = "%s%s" % (settings.SITEURL[:-1], instance.get_absolute_url())

    Link.objects.get_or_create(
        resource=instance.resourcebase_ptr,
        url=html_link_url,
        defaults=dict(extension="html", name=instance.typename, mime="text/html", link_type="html"),
    )

    params = {"layers": instance.typename.encode("utf-8"), "format": "image/png8", "width": 200, "height": 150}

    # Avoid using urllib.urlencode here because it breaks the url.
    # commas and slashes in values get encoded and then cause trouble
    # with the WMS parser.
    p = "&".join("%s=%s" % item for item in params.items())

    thumbnail_remote_url = ogc_server_settings.PUBLIC_LOCATION + "wms/reflect?" + p

    thumbnail_create_url = ogc_server_settings.LOCATION + "wms/reflect?" + p

    create_thumbnail(instance, thumbnail_remote_url, thumbnail_create_url, ogc_client=http_client)

    legend_url = (
        ogc_server_settings.PUBLIC_LOCATION
        + "wms?request=GetLegendGraphic&format=image/png&WIDTH=20&HEIGHT=20&LAYER="
        + instance.typename
        + "&legend_options=fontAntiAliasing:true;fontSize:12;forceLabels:on"
    )

    Link.objects.get_or_create(
        resource=instance.resourcebase_ptr,
        url=legend_url,
        defaults=dict(extension="png", name="Legend", url=legend_url, mime="image/png", link_type="image"),
    )

    ogc_wms_path = "%s/wms" % instance.workspace
    ogc_wms_url = urljoin(ogc_server_settings.public_url, ogc_wms_path)
    ogc_wms_name = "OGC WMS: %s Service" % instance.workspace
    Link.objects.get_or_create(
        resource=instance.resourcebase_ptr,
        url=ogc_wms_url,
        defaults=dict(extension="html", name=ogc_wms_name, url=ogc_wms_url, mime="text/html", link_type="OGC:WMS"),
    )

    if instance.storeType == "dataStore":
        ogc_wfs_path = "%s/wfs" % instance.workspace
        ogc_wfs_url = urljoin(ogc_server_settings.public_url, ogc_wfs_path)
        ogc_wfs_name = "OGC WFS: %s Service" % instance.workspace
        Link.objects.get_or_create(
            resource=instance.resourcebase_ptr,
            url=ogc_wfs_url,
            defaults=dict(extension="html", name=ogc_wfs_name, url=ogc_wfs_url, mime="text/html", link_type="OGC:WFS"),
        )

    if instance.storeType == "coverageStore":
        ogc_wcs_path = "%s/wcs" % instance.workspace
        ogc_wcs_url = urljoin(ogc_server_settings.public_url, ogc_wcs_path)
        ogc_wcs_name = "OGC WCS: %s Service" % instance.workspace
        Link.objects.get_or_create(
            resource=instance.resourcebase_ptr,
            url=ogc_wcs_url,
            defaults=dict(extension="html", name=ogc_wcs_name, url=ogc_wcs_url, mime="text/html", link_type="OGC:WCS"),
        )

    # remove links that belong to and old address

    for link in instance.link_set.all():
        if (
            not urlparse(settings.SITEURL).hostname == urlparse(link.url).hostname
            and not urlparse(ogc_server_settings.public_url).hostname == urlparse(link.url).hostname
        ):
            link.delete()

    # Save layer attributes
    set_attributes(instance)

    # Save layer styles
    set_styles(instance, gs_catalog)
    # NOTTODO by simod: we should not do this!
    # need to be removed when fixing #2015
    from geonode.catalogue.models import catalogue_post_save
    from geonode.layers.models import Layer

    catalogue_post_save(instance, Layer)
Exemple #8
0
def geoserver_post_save(instance, sender, **kwargs):
    """Save keywords to GeoServer

       The way keywords are implemented requires the layer
       to be saved to the database before accessing them.
    """
    url = ogc_server_settings.internal_rest

    try:
        gs_resource= gs_catalog.get_resource(instance.name)
    except socket_error as serr:
        if serr.errno != errno.ECONNREFUSED:
            # Not the error we are looking for, re-raise
            raise serr
        # If the connection is refused, take it easy.
        return

    if any(instance.keyword_list()):
        gs_resource.keywords = instance.keyword_list()

        #gs_resource should only be called if ogc_server_settings.BACKEND_WRITE_ENABLED == True
        if getattr(ogc_server_settings,"BACKEND_WRITE_ENABLED", True):
            gs_catalog.save(gs_resource)

    bbox = gs_resource.latlon_bbox
    dx = float(bbox[1]) - float(bbox[0])
    dy = float(bbox[3]) - float(bbox[2])

    dataAspect = 1 if dy == 0 else dx / dy

    height = 550
    width = int(height * dataAspect)

    # Set download links for WMS, WCS or WFS and KML

    links = wms_links(ogc_server_settings.public_url + 'wms?',
                    instance.typename.encode('utf-8'), instance.bbox_string,
                    instance.srid, height, width)

    for ext, name, mime, wms_url in links:
        Link.objects.get_or_create(resource= instance.resourcebase_ptr,
                        name=ugettext(name),
                        defaults=dict(
                            extension=ext,
                            url=wms_url,
                            mime=mime,
                            link_type='image',
                           )
                        )

    if instance.storeType == "dataStore":
        links = wfs_links(ogc_server_settings.public_url + 'wfs?', instance.typename.encode('utf-8'))
        for ext, name, mime, wfs_url in links:
            if mime=='SHAPE-ZIP':
                name = 'Zipped Shapefile'
            Link.objects.get_or_create(resource= instance.resourcebase_ptr,
                            url=wfs_url,
                            defaults=dict(
                                extension=ext,
                                name=name,
                                mime=mime,
                                url=wfs_url,
                                link_type='data',
                            )
                        )

    elif instance.storeType == 'coverageStore':
        #FIXME(Ariel): This works for public layers, does it work for restricted too?
        # would those end up with no geotiff links, like, forever?
        permissions = {}
        permissions['anonymous'] = instance.get_gen_level(ANONYMOUS_USERS)
        permissions['authenticated'] = instance.get_gen_level(AUTHENTICATED_USERS)
        instance.set_gen_level(ANONYMOUS_USERS,'layer_readonly')

        #Potentially 3 dimensions can be returned by the grid if there is a z
        #axis.  Since we only want width/height, slice to the second dimension
        covWidth, covHeight = get_coverage_grid_extent(instance)[:2]
        links = wcs_links(ogc_server_settings.public_url + 'wcs?', instance.typename.encode('utf-8'),
                          bbox=gs_resource.native_bbox[:-1],
                          crs=gs_resource.native_bbox[-1],
                          height=str(covHeight), width=str(covWidth))
        for ext, name, mime, wcs_url in links:
            Link.objects.get_or_create(resource= instance.resourcebase_ptr,
                                url=wcs_url,
                                defaults=dict(
                                    extension=ext,
                                    name=name,
                                    mime=mime,
                                    link_type='data',
                                )
                            )

        instance.set_gen_level(ANONYMOUS_USERS,permissions['anonymous'])
        instance.set_gen_level(AUTHENTICATED_USERS,permissions['authenticated'])

    kml_reflector_link_download = ogc_server_settings.public_url + "wms/kml?" + urllib.urlencode({
        'layers': instance.typename.encode('utf-8'),
        'mode': "download"
    })

    Link.objects.get_or_create(resource= instance.resourcebase_ptr,
                        url=kml_reflector_link_download,
                        defaults=dict(
                            extension='kml',
                            name=_("KML"),
                            mime='text/xml',
                            link_type='data',
                        )
                    )

    kml_reflector_link_view = ogc_server_settings.public_url + "wms/kml?" + urllib.urlencode({
        'layers': instance.typename.encode('utf-8'),
        'mode': "refresh"
    })

    Link.objects.get_or_create(resource= instance.resourcebase_ptr,
                        url=kml_reflector_link_view,
                        defaults=dict(
                            extension='kml',
                            name="View in Google Earth",
                            mime='text/xml',
                            link_type='data',
                        )
                    )

    tile_url = ('%sgwc/service/gmaps?' % ogc_server_settings.public_url +
                'layers=%s' % instance.typename.encode('utf-8') +
                '&zoom={z}&x={x}&y={y}' +
                '&format=image/png8'
                )

    Link.objects.get_or_create(resource= instance.resourcebase_ptr,
                        url=tile_url,
                        defaults=dict(
                            extension='tiles',
                            name=_("Tiles"),
                            mime='image/png',
                            link_type='image',
                            )
                        )


    wms_path = '%s/%s/wms' % (instance.workspace, instance.name)
    ows_url = urljoin(ogc_server_settings.public_url, wms_path)

    Link.objects.get_or_create(resource= instance.resourcebase_ptr,
                        url=ows_url,
                        defaults=dict(
                            extension='html',
                            name=_("OWS"),
                            url=ows_url,
                            mime='text/html',
                            link_type='OGC:WMS',
                            )
                        )


    html_link_url = '%s%s' % (settings.SITEURL[:-1], instance.get_absolute_url())

    Link.objects.get_or_create(resource= instance.resourcebase_ptr,
                        url=html_link_url,
                        defaults=dict(
                            extension='html',
                            name=instance.typename,
                            mime='text/html',
                            link_type='html',
                            )
                        )

    params = {
        'layers': instance.typename.encode('utf-8'),
        'format': 'image/png8',
        'width': 200,
        'height': 150,
    }

    # Avoid using urllib.urlencode here because it breaks the url.
    # commas and slashes in values get encoded and then cause trouble
    # with the WMS parser.
    p = "&".join("%s=%s"%item for item in params.items())

    thumbnail_remote_url = ogc_server_settings.PUBLIC_LOCATION + "wms/reflect?" + p

    create_thumbnail(instance, thumbnail_remote_url)

    legend_url = ogc_server_settings.PUBLIC_LOCATION +'wms?request=GetLegendGraphic&format=image/png&WIDTH=20&HEIGHT=20&LAYER='+instance.typename+'&legend_options=fontAntiAliasing:true;fontSize:12;forceLabels:on'

    Link.objects.get_or_create(resource= instance.resourcebase_ptr,
                        url=legend_url,
                        defaults=dict(
                            extension='png',
                            name=_('Legend'),
                            url=legend_url,
                            mime='image/png',
                            link_type='image',
                        )
                    )

    ogc_wms_url = ogc_server_settings.public_url + 'wms?'
    Link.objects.get_or_create(resource= instance.resourcebase_ptr,
                        url=ogc_wms_url,
                        defaults=dict(
                            extension='html',
                            name=instance.name,
                            url=ogc_wms_url,
                            mime='text/html',
                            link_type='OGC:WMS',
                        )
                    )
                        
    if instance.storeType == "dataStore":
        ogc_wfs_url = ogc_server_settings.public_url + 'wfs?'
        Link.objects.get_or_create(resource= instance.resourcebase_ptr,
                            url=ogc_wfs_url,
                            defaults=dict(
                                extension='html',
                                name=instance.name,
                                url=ogc_wfs_url,
                                mime='text/html',
                                link_type='OGC:WFS',
                            )
                        )

    if instance.storeType == "coverageStore":
        ogc_wcs_url = ogc_server_settings.public_url + 'wcs?'
        Link.objects.get_or_create(resource= instance.resourcebase_ptr,
                            url=ogc_wcs_url,
                            defaults=dict(
                                extension='html',
                                name=instance.name,
                                url=ogc_wcs_url,
                                mime='text/html',
                                link_type='OGC:WCS',
                            )
                        )

    #remove links that belong to and old address

    for link in instance.link_set.all():
        if not urlparse(settings.SITEURL).hostname == urlparse(link.url).hostname and not \
                    urlparse(ogc_server_settings.public_url).hostname == urlparse(link.url).hostname:
            link.delete()

    #Save layer attributes
    set_attributes(instance)

    #Save layer styles
    set_styles(instance, gs_catalog)