def create_project_text_from_request(request, project_uri, request_text_uri):
if request.user.is_authenticated():
if has_permission_over(project_uri, user=request.user, permission=NS.perm.mayUpdate):
try:
logger.debug('!!!!!!!!!!!!!!! project_texts.py - create_project_text_from_request')
g = parse_request_into_graph(request)
except (ParserError, SyntaxError) as e:
logger.debug('!!!!!!!!!!!!!!! project_texts.py - create_project_text_from_request - EXCEPTION !!!!!!!!')
return HttpResponse(status=400, content="Unable to parse serialization.\n%s" % e)
else:
logger.debug('!!!!!!!!!!!!!!! project_texts.py - create_project_text_from_request - ELSE !!!!!!!!')
text_uri = URIRef(uris.uuid())
logger.debug("uris.uuid(): %s", uris.uuid())
logger.debug("text_uri: %s", text_uri)
logger.debug('!!!!!!!!!!!!!!! project_texts.py - create_project_text_from_request - CREATING TEXT... !!!!!!!!')
update_project_text(g, project_uri, text_uri, request.user)
logger.debug('!!!!!!!!!!!!!!! project_texts.py - create_project_text_from_request - CREATING TEXT COMPLETE !!!!!!!!')
logger.debug('!!!!!!!!!!!!!!! project_texts.py - create_project_text_from_request - UPDATING... !!!!!!!!')
update_project_text(g, project_uri, request_text_uri, request.user)
logger.debug('!!!!!!!!!!!!!!! project_texts.py - create_project_text_from_request - UPDATING COMPLETE !!!!!!!!')
return NegotiatedGraphResponse(request, read_project_text(project_uri, text_uri))
else:
return HttpResponseForbidden()
else:
return HttpResponse(status=401)
def post(self, request, project_uri):
project_uri = URIRef(project_uri)
project_graph = get_project_graph(project_uri)
project_metadata_graph = get_project_metadata_graph(project_uri)
canvas_graph = Graph()
image_file = request.FILES['image_file']
title = request.POST.get('title', '')
uri = uris.uuid()
if hasattr(settings, 'MAX_IMAGE_UPLOAD_FILE_SIZE'
) and image_file.size > settings.MAX_IMAGE_UPLOAD_FILE_SIZE:
return HttpResponse(status=406)
if not image_file.content_type.startswith('image/'):
return HttpResponse(status=406)
uploaded = UploadedImage.objects.create(imagefile=image_file,
owner=request.user)
create_canvas_from_upload(canvas_graph, uploaded, uri, request.user,
title)
# Make the canvas a top level project resource
canvas_graph.add((project_uri, NS.ore.aggregates, uri))
project_graph += canvas_graph
project_metadata_graph += canvas_graph
canvas_graph += metadata_triples(project_metadata_graph, project_uri)
canvas_graph += project_metadata_graph.triples(
(project_uri, NS.ore.aggregates, None))
return NegotiatedGraphResponse(request, canvas_graph)
def post(self, request, project_uri):
project_uri = URIRef(project_uri)
project_graph = get_project_graph(project_uri)
project_metadata_graph = get_project_metadata_graph(project_uri)
canvas_graph = Graph()
image_file = request.FILES['image_file']
title = request.POST.get('title', '')
uri = uris.uuid()
if hasattr(settings, 'MAX_IMAGE_UPLOAD_FILE_SIZE') and image_file.size > settings.MAX_IMAGE_UPLOAD_FILE_SIZE:
return HttpResponse(status=406)
if not image_file.content_type.startswith('image/'):
return HttpResponse(status=406)
uploaded = UploadedImage.objects.create(imagefile=image_file, owner=request.user)
create_canvas_from_upload(canvas_graph, uploaded, uri, request.user, title)
# Make the canvas a top level project resource
canvas_graph.add((project_uri, NS.ore.aggregates, uri))
project_graph += canvas_graph
project_metadata_graph += canvas_graph
canvas_graph += metadata_triples(project_metadata_graph, project_uri)
canvas_graph += project_metadata_graph.triples((project_uri, NS.ore.aggregates, None))
return NegotiatedGraphResponse(request, canvas_graph)
def create_canvas_from_upload(graph, uploaded_image, uri, user=None, title=None):
graph.add((uri, NS.rdf.type, NS.sc.Canvas))
if title:
graph.add((uri, NS.dc.title, Literal(title)))
graph.add((uri, NS.rdfs.label, Literal(title)))
if user:
user_uri = users.user_uri(user=user)
graph.add((uri, NS.dc.creator, user_uri))
image_uri = uris.absolutize(uploaded_image.imagefile.url)
graph.add((image_uri, NS.rdf.type, NS.dcmitype.Image))
width = Literal(uploaded_image.imagefile.width)
height = Literal(uploaded_image.imagefile.height)
graph.add((image_uri, NS.exif.width, width))
graph.add((image_uri, NS.exif.height, height))
graph.add((uri, NS.exif.width, width))
graph.add((uri, NS.exif.height, height))
anno_uri = uris.uuid()
graph.add((anno_uri, NS.rdf.type, NS.oa.Annotation))
graph.add((anno_uri, NS.oa.motivatedBy, NS.sc.painting))
graph.add((anno_uri, NS.oa.hasBody, image_uri))
graph.add((anno_uri, NS.oa.hasTarget, uri))
return graph
def create_project_text_from_request(request, project_uri, request_text_uri):
if request.user.is_authenticated():
if has_permission_over(project_uri,
user=request.user,
permission=NS.perm.mayUpdate):
try:
logger.debug(
'!!!!!!!!!!!!!!! project_texts.py - create_project_text_from_request'
)
g = parse_request_into_graph(request)
except (ParserError, SyntaxError) as e:
logger.debug(
'!!!!!!!!!!!!!!! project_texts.py - create_project_text_from_request - EXCEPTION !!!!!!!!'
)
return HttpResponse(
status=400,
content="Unable to parse serialization.\n%s" % e)
else:
logger.debug(
'!!!!!!!!!!!!!!! project_texts.py - create_project_text_from_request - ELSE !!!!!!!!'
)
text_uri = URIRef(uris.uuid())
logger.debug("uris.uuid(): %s", uris.uuid())
logger.debug("text_uri: %s", text_uri)
logger.debug(
'!!!!!!!!!!!!!!! project_texts.py - create_project_text_from_request - CREATING TEXT... !!!!!!!!'
)
update_project_text(g, project_uri, text_uri, request.user)
logger.debug(
'!!!!!!!!!!!!!!! project_texts.py - create_project_text_from_request - CREATING TEXT COMPLETE !!!!!!!!'
)
logger.debug(
'!!!!!!!!!!!!!!! project_texts.py - create_project_text_from_request - UPDATING... !!!!!!!!'
)
update_project_text(g, project_uri, request_text_uri,
request.user)
logger.debug(
'!!!!!!!!!!!!!!! project_texts.py - create_project_text_from_request - UPDATING COMPLETE !!!!!!!!'
)
return NegotiatedGraphResponse(
request, read_project_text(project_uri, text_uri))
else:
return HttpResponseForbidden()
else:
return HttpResponse(status=401)
def create_project_text_from_request(request, project_uri):
if request.user.is_authenticated():
if has_permission_over(project_uri, user=request.user, permission=NS.perm.mayUpdate):
try:
g = parse_request_into_graph(request)
except (ParserError, SyntaxError) as e:
return HttpResponse(status=400, content="Unable to parse serialization.\n%s" % e)
else:
text_uri = URIRef(uris.uuid())
update_project_text(g, project_uri, text_uri, request.user)
return NegotiatedGraphResponse(request, read_project_text(project_uri, text_uri))
else:
return HttpResponseForbidden()
else:
return HttpResponse(status=401)
def create_project_graph(host, user, title, project):
if not project:
project = uris.uuid()
elif not (type(project) == URIRef):
project = URIRef(project)
g = Graph()
bind_namespaces(g)
if not title:
title = "Default Project"
g.add((project, NS.rdf.type, NS.foaf.Project))
g.add((project, NS.rdf.type, NS.dm.Project))
g.add((project, NS.rdf['type'], NS.dcmitype['Collection']))
g.add((project, NS.rdf['type'], NS.ore['Aggregation']))
g.add((project, NS.dc['title'], Literal(title)))
g.add((project, NS.dcterms['created'], Literal(datetime.utcnow())))
return g
def create_project_graph(host, user, title, project):
if not project:
project = uris.uuid()
elif not (type(project) == URIRef):
project = URIRef(project)
g = Graph()
bind_namespaces(g)
if not title:
title = "Default Project"
g.add((project, NS.rdf.type, NS.foaf.Project))
g.add((project, NS.rdf.type, NS.dm.Project))
g.add((project, NS.rdf['type'], NS.dcmitype['Collection']))
g.add((project, NS.rdf['type'], NS.ore['Aggregation']))
g.add((project, NS.dc['title'], Literal(title)))
g.add((project, NS.dcterms['created'], Literal(datetime.utcnow())))
return g