def json_view(request, spatial_context=None):
""" API for searching Open Context """
rd = RequestDict()
request_dict_json = rd.make_request_dict_json(request,
spatial_context)
solr_s = SolrSearch()
if solr_s.solr is not False:
response = solr_s.search_solr(request_dict_json)
m_json_ld = MakeJsonLd(request_dict_json)
# share entities already looked up. Saves database queries
m_json_ld.entities = solr_s.entities
m_json_ld.request_full_path = request.get_full_path()
m_json_ld.spatial_context = spatial_context
json_ld = m_json_ld.convert_solr_json(response.raw_content)
req_neg = RequestNegotiation('application/json')
req_neg.supported_types = ['application/ld+json']
recon_obj = Reconciliation()
json_ld = recon_obj.process(request.GET,
json_ld)
if 'HTTP_ACCEPT' in request.META:
req_neg.check_request_support(request.META['HTTP_ACCEPT'])
if req_neg.supported:
# requester wanted a mimetype we DO support
return HttpResponse(json.dumps(json_ld,
ensure_ascii=False, indent=4),
content_type=req_neg.use_response_type + "; charset=utf8")
else:
# client wanted a mimetype we don't support
return HttpResponse(req_neg.error_message,
status=415)
else:
template = loader.get_template('500.html')
context = RequestContext(request,
{'error': 'Solr Connection Problem'})
return HttpResponse(template.render(context), status=503)
def void(request):
""" Returns RDF void data describing different datasets for
Pelagious
"""
p_void = PelagiosVoid()
p_void.request = request
p_void.make_graph()
req_neg = RequestNegotiation('text/turtle')
req_neg.supported_types = [
'application/rdf+xml', 'text/n3', 'application/n-triples'
]
if 'HTTP_ACCEPT' in request.META:
req_neg.check_request_support(request.META['HTTP_ACCEPT'])
if req_neg.supported:
content_type = req_neg.use_response_type + '; charset=utf8'
output = p_void.g.serialize(format=req_neg.use_response_type)
return HttpResponse(output, content_type=content_type)
else:
# client wanted a mimetype we don't support
return HttpResponse(req_neg.error_message,
content_type="text/plain; charset=utf8",
status=415)
else:
# default to outputting in turtle
output = p_void.g.serialize(format='turtle')
return HttpResponse(output, content_type='text/turtle; charset=utf8')
def html_view(request, uuid):
request = RequestNegotiation().anonymize_request(request)
# Handle some content negotiation for the item.
req_neg = RequestNegotiation('text/html')
req_neg.supported_types = []
if 'HTTP_ACCEPT' in request.META:
req_neg.check_request_support(request.META['HTTP_ACCEPT'])
if not req_neg.supported:
# The client may be wanting a non-HTML representation, so
# use the following function to get it.
return items_graph(request, uuid, item_type=ITEM_TYPE)
ocitem = OCitem()
ocitem.get_item(uuid)
if not ocitem.manifest:
# Did not find a record for the table, check for redirects
r_url = RedirectURL()
r_ok = r_url.get_direct_by_type_id(ITEM_TYPE, uuid)
if r_ok:
# found a redirect!!
return redirect(r_url.redirect, permanent=r_url.permanent)
# raise Http404
raise Http404
# check to see if there's related data via API calls. Add if so.
request.uuid = ocitem.manifest.uuid
request.project_uuid = ocitem.manifest.project_uuid
request.item_type = ocitem.manifest.item_type
subj_s = SubjectSupplement(ocitem.json_ld)
ocitem.json_ld = subj_s.get_catal_related()
rp = RootPath()
base_url = rp.get_baseurl()
temp_item = TemplateItem(request)
temp_item.read_jsonld_dict(ocitem.json_ld)
template = loader.get_template('subjects/view.html')
if not temp_item.view_permitted:
# The client is not allowed to see this.
template = loader.get_template('items/view401.html')
context = {
'item': temp_item,
'base_url': base_url,
'user': request.user
}
return HttpResponse(template.render(context, request), status=401)
# The client is allowd to see the current item.
context = {'item': temp_item, 'base_url': base_url, 'user': request.user}
response = HttpResponse(template.render(context, request))
patch_vary_headers(response, ['accept', 'Accept', 'content-type'])
return response
def html_view(request, spatial_context=None):
rp = RootPath()
base_url = rp.get_baseurl()
rd = RequestDict()
request_dict_json = rd.make_request_dict_json(request,
spatial_context)
url = request.get_full_path()
if 'http://' not in url \
and 'https://' not in url:
url = base_url + url
if '?' in url:
json_url = url.replace('?', '.json?')
else:
json_url = url + '.json'
solr_s = SolrSearch()
if solr_s.solr is not False:
response = solr_s.search_solr(request_dict_json)
m_json_ld = MakeJsonLd(request_dict_json)
# share entities already looked up. Saves database queries
m_json_ld.entities = solr_s.entities
m_json_ld.request_full_path = request.get_full_path()
m_json_ld.spatial_context = spatial_context
json_ld = m_json_ld.convert_solr_json(response.raw_content)
req_neg = RequestNegotiation('text/html')
req_neg.supported_types = ['application/json',
'application/ld+json']
if 'HTTP_ACCEPT' in request.META:
req_neg.check_request_support(request.META['HTTP_ACCEPT'])
if 'json' in req_neg.use_response_type:
# content negotiation requested JSON or JSON-LD
recon_obj = Reconciliation()
json_ld = recon_obj.process(request.GET,
json_ld)
return HttpResponse(json.dumps(json_ld,
ensure_ascii=False, indent=4),
content_type=req_neg.use_response_type + "; charset=utf8")
else:
# now make the JSON-LD into an object suitable for HTML templating
st = SearchTemplate(json_ld)
st.process_json_ld()
template = loader.get_template('sets/view.html')
context = RequestContext(request,
{'st': st,
'url': url,
'json_url': json_url,
'base_url': base_url})
if req_neg.supported:
return HttpResponse(template.render(context))
else:
# client wanted a mimetype we don't support
return HttpResponse(req_neg.error_message,
content_type=req_neg.use_response_type + "; charset=utf8",
status=415)
else:
template = loader.get_template('500.html')
context = RequestContext(request,
{'error': 'Solr Connection Problem'})
return HttpResponse(template.render(context), status=503)
def index(request):
""" redirects requests from the media index
to the media-search view
"""
request = RequestNegotiation().anonymize_request(request)
rp = RootPath()
base_url = rp.get_baseurl()
new_url = base_url + '/search/?type=documents'
return redirect(new_url, permanent=True)
def project_vocabs(request, uuid, return_media=None):
""" Provides a RDF serialization, defaulting to a
JSON-LD context for
the data in a project. This will include
a graph object that has annotations
annotations of predicates and types
"""
proj_context = ProjectContext(uuid, request)
if 'hashes' in request.GET:
proj_context.assertion_hashes = True
if not proj_context.manifest:
raise Http404
req_neg = RequestNegotiation('application/json')
req_neg.supported_types = ['application/ld+json']
req_neg.supported_types += RDF_SERIALIZATIONS
if 'HTTP_ACCEPT' in request.META:
req_neg.check_request_support(request.META['HTTP_ACCEPT'])
if return_media:
req_neg.check_request_support(return_media)
req_neg.use_response_type = return_media
# Associate the request media type with the request so we can
# make sure that different representations of this resource get different
# cache responses.
request.content_type = req_neg.use_response_type
if not req_neg.supported:
# client wanted a mimetype we don't support
response = HttpResponse(req_neg.error_message,
content_type=req_neg.use_response_type +
"; charset=utf8",
status=415)
patch_vary_headers(response, ['accept', 'Accept', 'content-type'])
return response
json_ld = proj_context.make_context_and_vocab_json_ld()
# Check first if the output is requested to be an RDF format
graph_output = graph_serialize(req_neg.use_response_type, json_ld)
if graph_output:
# Return with some sort of graph output
response = HttpResponse(graph_output,
content_type=req_neg.use_response_type +
"; charset=utf8")
patch_vary_headers(response, ['accept', 'Accept', 'content-type'])
return response
# We're outputing JSON
json_output = json.dumps(json_ld, indent=4, ensure_ascii=False)
if 'callback' in request.GET:
funct = request.GET['callback']
response = HttpResponse(funct + '(' + json_output + ');',
content_type='application/javascript' +
"; charset=utf8")
patch_vary_headers(response, ['accept', 'Accept', 'content-type'])
return response
else:
response = HttpResponse(json_output,
content_type=req_neg.use_response_type +
"; charset=utf8")
patch_vary_headers(response, ['accept', 'Accept', 'content-type'])
return response
def index(request):
""" redirects requests from the projects index
to the project-search view
"""
request = RequestNegotiation().anonymize_request(request)
rp = RootPath()
base_url = rp.get_baseurl()
new_url = base_url + '/projects-search/'
return redirect(new_url, permanent=True)
def html_view(request, identifier):
rp = RootPath()
base_url = rp.get_baseurl()
uri = 'http://opencontext.org/vocabularies/' + str(identifier)
lequiv = LinkEquivalence()
id_list = lequiv.get_identifier_list_variants(uri)
lequiv = LinkEquivalence()
id_s_list = lequiv.get_identifier_list_variants(uri + '/')
for id_s in id_s_list:
if id_s not in id_list:
# add the slashed version to the list
id_list.append(id_s)
entity = False
for test_id in id_list:
ent = Entity()
found = ent.dereference(test_id)
if found is False:
found = ent.dereference(test_id, test_id)
if found:
entity = ent
break
if entity is not False:
t_vocab = TemplateVocab()
t_vocab.create_template_for_entity(entity)
t_vocab.make_json_for_html()
req_neg = RequestNegotiation('text/html')
req_neg.supported_types = ['application/ld+json', 'application/json']
if 'HTTP_ACCEPT' in request.META:
req_neg.check_request_support(request.META['HTTP_ACCEPT'])
if req_neg.supported:
if 'json' in req_neg.use_response_type:
# content negotiation requested JSON or JSON-LD
json_obj = t_vocab.make_json_obj()
return HttpResponse(json.dumps(json_obj,
ensure_ascii=False,
indent=4),
content_type=req_neg.use_response_type +
"; charset=utf8")
else:
template = loader.get_template('vocabularies/view.html')
context = {
'item': t_vocab,
'base_url': base_url,
'page_title': 'Open Context: Vocabularies + Ontologies',
'act_nav': 'vocabularies',
'nav_items': settings.NAV_ITEMS
}
return HttpResponse(template.render(context, request))
else:
# client wanted a mimetype we don't support
return HttpResponse(req_neg.error_message,
content_type="text/plain; charset=utf8",
status=415)
else:
raise Http404
def project_annotations(request, identifier):
""" Returns RDF open annotation assertions conforming to
Pelagios specifications that link
Open Context resources with place entities in
gazetteers
"""
ent = Entity()
found = ent.dereference(identifier)
if found or identifier == 'web':
if ent.item_type == 'projects' or identifier == 'web':
pelagios = PelagiosGraph()
pelagios.test_limit = None
if 'refresh' in request.GET:
# we're going to refresh the cache
pelagios.refresh_cache = True
if identifier != 'web':
pp = ProjectPermissions(ent.uuid)
permitted = pp.view_allowed(request)
pelagios.project_uuids = [ent.uuid]
else:
# we're doing web annotations
pelagios.do_web_annotations = True
permitted = True
if permitted:
pelagios.get_graph()
req_neg = RequestNegotiation('text/turtle')
req_neg.supported_types = [
'application/rdf+xml', 'text/n3', 'application/n-triples'
]
if 'HTTP_ACCEPT' in request.META:
req_neg.check_request_support(request.META['HTTP_ACCEPT'])
if req_neg.supported:
content_type = req_neg.use_response_type + '; charset=utf8'
output = pelagios.g.serialize(
format=req_neg.use_response_type)
return HttpResponse(output, content_type=content_type)
else:
# client wanted a mimetype we don't support
return HttpResponse(
req_neg.error_message,
content_type="text/plain; charset=utf8",
status=415)
else:
# default to outputting in turtle
output = pelagios.g.serialize(format='turtle')
return HttpResponse(
output, content_type='text/turtle; charset=utf8')
else:
return HttpResponse('Not authorized to get this resource',
content_type='text/html; charset=utf8',
status=401)
else:
found = False
if found is False:
raise Http404
def concepts_view(request):
""" Get concepts overview """
request = RequestNegotiation().anonymize_request(request)
rp = RootPath()
base_url = rp.get_baseurl()
req_neg = RequestNegotiation('text/html')
if 'HTTP_ACCEPT' in request.META:
req_neg.check_request_support(request.META['HTTP_ACCEPT'])
if req_neg.supported:
# requester wanted a mimetype we DO support
template = loader.get_template('about/temp.html')
context = {
'base_url': base_url,
'page_title': 'Open Context: About - Concepts',
'act_nav': 'about',
'nav_items': settings.NAV_ITEMS
}
return HttpResponse(template.render(context))
else:
# client wanted a mimetype we don't support
return HttpResponse(req_neg.error_message, status=415)
def old_redirect_view(request):
""" Redirects from the original PHP version of
Open Context when ".php" was in URLs
"""
request = RequestNegotiation().anonymize_request(request)
rp = RootPath()
base_url = rp.get_baseurl()
new_url = base_url + '/subjects-search/'
if 'item' in request.GET:
uuid = request.GET['item']
new_url = base_url + '/subjects/' + uuid
return redirect(new_url, permanent=True)
def html_view(request, uuid):
request = RequestNegotiation().anonymize_request(request)
# Handle some content negotiation for the item.
req_neg = RequestNegotiation('text/html')
req_neg.supported_types = []
if 'HTTP_ACCEPT' in request.META:
req_neg.check_request_support(request.META['HTTP_ACCEPT'])
if not req_neg.supported:
# The client may be wanting a non-HTML representation, so
# use the following function to get it.
return items_graph(request, uuid, item_type=ITEM_TYPE)
if request.GET.get('new') is not None:
return html_view_new(request, uuid)
ocitem = OCitem()
ocitem.get_item(uuid, True)
if not ocitem.manifest:
# Did not find a record for the table, check for redirects
r_url = RedirectURL()
r_ok = r_url.get_direct_by_type_id(ITEM_TYPE, uuid)
if r_ok:
# found a redirect!!
return redirect(r_url.redirect, permanent=r_url.permanent)
# raise Http404
raise Http404
# Construnct item the JSON-LD
request.uuid = ocitem.manifest.uuid
request.project_uuid = ocitem.manifest.project_uuid
request.item_type = ocitem.manifest.item_type
rp = RootPath()
base_url = rp.get_baseurl()
proj_content = ProjectContent(ocitem.manifest.uuid, ocitem.manifest.slug,
ocitem.json_ld)
temp_item = TemplateItem()
temp_item.proj_content = proj_content.get_project_content()
temp_item.read_jsonld_dict(ocitem.json_ld)
template = loader.get_template('projects/view.html')
context = {'item': temp_item, 'base_url': base_url, 'user': request.user}
response = HttpResponse(template.render(context, request))
patch_vary_headers(response, ['accept', 'Accept', 'content-type'])
return response
def html_view_new(request, uuid):
request = RequestNegotiation().anonymize_request(request)
# Handle some content negotiation for the item.
req_neg = RequestNegotiation('text/html')
req_neg.supported_types = []
if 'HTTP_ACCEPT' in request.META:
req_neg.check_request_support(request.META['HTTP_ACCEPT'])
if not req_neg.supported:
# The client may be wanting a non-HTML representation, so
# use the following function to get it.
return items_graph(request, uuid, item_type=ITEM_TYPE)
# Proceed with constructing the HTML item
ocitem = OCitemNew()
if 'hashes' in request.GET:
ocitem.assertion_hashes = True
exists = ocitem.check_exists(uuid)
if not exists:
# Did not find a record for the table, check for redirects
r_url = RedirectURL()
r_ok = r_url.get_direct_by_type_id(ITEM_TYPE, uuid)
if r_ok:
# found a redirect!!
return redirect(r_url.redirect, permanent=r_url.permanent)
# raise Http404
raise Http404
# Construnct item the JSON-LD
ocitem.generate_json_ld()
rp = RootPath()
base_url = rp.get_baseurl()
proj_content = ProjectContent(ocitem.manifest.uuid, ocitem.manifest.slug,
ocitem.json_ld)
html_temp = HTMLtemplate()
html_temp.proj_context_json_ld = ocitem.proj_context_json_ld
html_temp.proj_content = proj_content.get_project_content()
html_temp.read_jsonld_dict(ocitem.json_ld)
template = loader.get_template('projects/view.html')
context = {'item': html_temp, 'base_url': base_url, 'user': request.user}
response = HttpResponse(template.render(context, request))
patch_vary_headers(response, ['accept', 'Accept', 'content-type'])
return response
def csv_view(request, table_id):
request = RequestNegotiation().anonymize_request(request)
exp_tt = ExpTableTemplating(table_id)
if exp_tt.exp_tab is not False:
exp_tt.prep_csv()
req_neg = RequestNegotiation('text/csv')
if 'HTTP_ACCEPT' in request.META:
req_neg.check_request_support(request.META['HTTP_ACCEPT'])
if req_neg.supported:
if isinstance(exp_tt.csv_url, str):
return redirect(exp_tt.csv_url, permanent=False)
else:
dump = CSVdump()
return dump.web_dump(exp_tt.table_id)
else:
# client wanted a mimetype we don't support
return HttpResponse(req_neg.error_message,
content_type=req_neg.use_response_type +
"; charset=utf8",
status=415)
else:
raise Http404
def index_view(request):
""" Get the search context JSON-LD """
request = RequestNegotiation().anonymize_request(request)
rp = RootPath()
base_url = rp.get_baseurl()
req_neg = RequestNegotiation('text/html')
if 'HTTP_ACCEPT' in request.META:
req_neg.check_request_support(request.META['HTTP_ACCEPT'])
if req_neg.supported:
# requester wanted a mimetype we DO support
open_graph = {
'twitter_site':
settings.TWITTER_SITE,
'type':
'website',
'url':
base_url + '/about/',
'site_name':
settings.CANONICAL_SITENAME,
'description':
'Video and introduction to Open Context, an open-access '
'data publication service for archaeology ',
'image':
base_url + '/static/oc/images/index/oc-blue-square-logo.png',
'video':
'https://opencontext.wistia.com/medias/s0g0fsyqkz'
}
template = loader.get_template('about/index.html')
context = {
'base_url': base_url,
'page_title': 'Open Context: About',
'act_nav': 'about',
'og': open_graph,
'nav_items': settings.NAV_ITEMS
}
return HttpResponse(template.render(context, request))
else:
# client wanted a mimetype we don't support
return HttpResponse(req_neg.error_message, status=415)
def index_view(request, table_id=None):
""" Get the search context JSON-LD """
request = RequestNegotiation().anonymize_request(request)
rp = RootPath()
base_url = rp.get_baseurl()
req_neg = RequestNegotiation('text/html')
if 'HTTP_ACCEPT' in request.META:
req_neg.check_request_support(request.META['HTTP_ACCEPT'])
if req_neg.supported:
# requester wanted a mimetype we DO support
template = loader.get_template('tables/index.html')
context = {
'base_url': base_url,
'page_title': 'Open Context: Tables',
'act_nav': 'tables',
'nav_items': settings.NAV_ITEMS,
'user': request.user
}
return HttpResponse(template.render(context, request))
else:
# client wanted a mimetype we don't support
return HttpResponse(req_neg.error_message, status=415)
def html_view(request, uuid):
ocitem = OCitem()
ocitem.get_item(uuid)
if (ocitem.manifest is not False):
rp = RootPath()
base_url = rp.get_baseurl()
ts = TypeSupplement(ocitem.json_ld)
ocitem.json_ld = ts.get_arachne_comparanda()
temp_item = TemplateItem(request)
temp_item.read_jsonld_dict(ocitem.json_ld)
template = loader.get_template('types/view.html')
if temp_item.view_permitted:
req_neg = RequestNegotiation('text/html')
req_neg.supported_types = [
'application/json', 'application/ld+json'
]
if 'HTTP_ACCEPT' in request.META:
req_neg.check_request_support(request.META['HTTP_ACCEPT'])
if req_neg.supported:
if 'json' in req_neg.use_response_type:
# content negotiation requested JSON or JSON-LD
return HttpResponse(
json.dumps(ocitem.json_ld,
ensure_ascii=False,
indent=4),
content_type=req_neg.use_response_type +
"; charset=utf8")
else:
context = RequestContext(request, {
'item': temp_item,
'base_url': base_url
})
return HttpResponse(template.render(context))
else:
# client wanted a mimetype we don't support
return HttpResponse(req_neg.error_message,
content_type=req_neg.use_response_type +
"; charset=utf8",
status=415)
else:
template = loader.get_template('items/view401.html')
context = RequestContext(request, {
'item': temp_item,
'base_url': base_url
})
return HttpResponse(template.render(context), status=401)
else:
raise Http404
def lightbox_view(request, spatial_context=''):
""" redirects requests from the legacy site 'lightbox'
to the media-search view
We can add URL parameter mappings to this later
so that old url parameters can be mapped to the
current parameters
"""
request = RequestNegotiation().anonymize_request(request)
url = request.get_full_path()
new_url = url.replace('/lightbox/', '/media-search/')
param_suffix = ''
if '?' in url:
url_ex = url.split('?')
param_suffix = '?' + url_ex[1]
return redirect(new_url, permanent=True)
def index(request):
""" Get the item context JSON-LD """
oai_obj = OAIpmh()
req_neg = RequestNegotiation('application/xml')
req_neg.supported_types = ['application/xml']
if 'HTTP_ACCEPT' in request.META:
req_neg.check_request_support(request.META['HTTP_ACCEPT'])
if req_neg.supported:
# requester wanted a mimetype we DO support
xml = oai_obj.process_request(request)
return HttpResponse(oai_obj.output_xml_string(),
content_type=req_neg.use_response_type + "; charset=utf8",
status=oai_obj.http_resp_code)
else:
# client wanted a mimetype we don't support
return HttpResponse(req_neg.error_message,
status=415)
def search_view(request):
""" Get the search context JSON-LD """
search_context_obj = SearchContext()
json_ld = LastUpdatedOrderedDict()
json_ld['@context'] = search_context_obj.context
req_neg = RequestNegotiation('application/json')
req_neg.supported_types = ['application/ld+json']
if 'HTTP_ACCEPT' in request.META:
req_neg.check_request_support(request.META['HTTP_ACCEPT'])
if req_neg.supported:
# requester wanted a mimetype we DO support
return HttpResponse(json.dumps(json_ld, ensure_ascii=False, indent=4),
content_type=req_neg.use_response_type +
"; charset=utf8")
else:
# client wanted a mimetype we don't support
return HttpResponse(req_neg.error_message, status=415)
def query_html(request, spatial_context=None):
"""HTML representation for searching Open Context """
request_dict = utilities.make_request_obj_dict(
request, spatial_context=spatial_context)
response_dict = process_solr_query(request_dict.copy())
req_neg = RequestNegotiation('text/html')
req_neg.supported_types = [
'application/json',
'application/ld+json',
]
if 'HTTP_ACCEPT' in request.META:
req_neg.check_request_support(request.META['HTTP_ACCEPT'])
# Associate the request media type with the request so we can
# make sure that different representations of this resource get different
# cache responses.
request.content_type = req_neg.use_response_type
if not req_neg.supported:
# Client wanted a mimetype we don't support
response = HttpResponse(req_neg.error_message,
content_type=req_neg.use_response_type +
"; charset=utf8",
status=415)
patch_vary_headers(response, ['accept', 'Accept', 'content-type'])
return response
if req_neg.use_response_type.endswith('json'):
return make_json_response(request, req_neg, response_dict)
rp = RootPath()
# Disable the search template and just use vue with the JSON
# API.
# search_temp = SearchTemplate(response_dict.copy())
context = {
'st': response_dict.copy(),
'base_url': rp.get_baseurl(),
'api_url': response_dict.get('id'),
'configs': configs,
}
template = loader.get_template('search_vue/view.html')
response = HttpResponse(template.render(context, request))
patch_vary_headers(response, ['accept', 'Accept', 'content-type'])
return response
def index_json(request):
spatial_context = None
rp = RootPath()
base_url = rp.get_baseurl()
rd = RequestDict()
request_dict_json = rd.make_request_dict_json(request, spatial_context)
url = request.get_full_path()
if 'http://' not in url \
and 'https://' not in url:
url = base_url + url
if '?' in url:
json_url = url.replace('?', '.json?')
else:
json_url = url + '.json'
json_url = json_url.replace('/projects/.json', '')
solr_s = SolrSearch()
solr_s.do_context_paths = False
solr_s.item_type_limit = 'projects'
if solr_s.solr is not False:
response = solr_s.search_solr(request_dict_json)
m_json_ld = MakeJsonLd(request_dict_json)
m_json_ld.base_search_link = '/projects/'
# share entities already looked up. Saves database queries
m_json_ld.entities = solr_s.entities
m_json_ld.request_full_path = request.get_full_path()
m_json_ld.spatial_context = spatial_context
json_ld = m_json_ld.convert_solr_json(response.raw_content)
req_neg = RequestNegotiation('application/json')
req_neg.supported_types = ['application/ld+json']
if 'HTTP_ACCEPT' in request.META:
req_neg.check_request_support(request.META['HTTP_ACCEPT'])
if req_neg.supported:
# requester wanted a mimetype we DO support
return HttpResponse(json.dumps(json_ld,
ensure_ascii=False,
indent=4),
content_type=req_neg.use_response_type +
"; charset=utf8")
else:
# client wanted a mimetype we don't support
return HttpResponse(req_neg.error_message, status=415)
else:
template = loader.get_template('500.html')
context = RequestContext(request, {'error': 'Solr Connection Problem'})
return HttpResponse(template.render(context), status=503)
def json_view(request, identifier):
rp = RootPath()
base_url = rp.get_baseurl()
uri = 'http://opencontext.org/vocabularies/' + str(identifier)
lequiv = LinkEquivalence()
id_list = lequiv.get_identifier_list_variants(uri)
lequiv = LinkEquivalence()
id_s_list = lequiv.get_identifier_list_variants(uri + '/')
for id_s in id_s_list:
if id_s not in id_list:
# add the slashed version to the list
id_list.append(id_s)
entity = False
for test_id in id_list:
ent = Entity()
found = ent.dereference(test_id)
if found is False:
found = ent.dereference(test_id, test_id)
if found:
entity = ent
break
if entity is not False:
t_vocab = TemplateVocab()
t_vocab.create_template_for_entity(entity)
json_obj = t_vocab.make_json_obj()
req_neg = RequestNegotiation('application/ld+json')
req_neg.supported_types = ['application/json']
if 'HTTP_ACCEPT' in request.META:
req_neg.check_request_support(request.META['HTTP_ACCEPT'])
if req_neg.supported:
return HttpResponse(json.dumps(json_obj,
ensure_ascii=False,
indent=4),
content_type=req_neg.use_response_type +
"; charset=utf8")
else:
# client wanted a mimetype we don't support
return HttpResponse(req_neg.error_message,
content_type="text/plain; charset=utf8",
status=415)
else:
raise Http404
def json_view(request, table_id):
exp_tt = ExpTableTemplating(table_id)
if exp_tt.exp_tab is not False:
json_ld = exp_tt.make_json_ld()
req_neg = RequestNegotiation('application/json')
req_neg.supported_types = ['application/ld+json']
if 'HTTP_ACCEPT' in request.META:
req_neg.check_request_support(request.META['HTTP_ACCEPT'])
if req_neg.supported:
json_output = json.dumps(json_ld, indent=4, ensure_ascii=False)
return HttpResponse(json_output,
content_type=req_neg.use_response_type +
"; charset=utf8")
else:
# client wanted a mimetype we don't support
return HttpResponse(req_neg.error_message,
content_type=req_neg.use_response_type +
"; charset=utf8",
status=415)
else:
raise Http404
def recipes_view(request):
""" Get the search context JSON-LD """
rp = RootPath()
base_url = rp.get_baseurl()
req_neg = RequestNegotiation('text/html')
if 'HTTP_ACCEPT' in request.META:
req_neg.check_request_support(request.META['HTTP_ACCEPT'])
if req_neg.supported:
# requester wanted a mimetype we DO support
template = loader.get_template('about/recipes.html')
context = RequestContext(
request, {
'base_url': base_url,
'page_title': 'Open Context: About - API Cookbook',
'act_nav': 'about',
'nav_items': settings.NAV_ITEMS
})
return HttpResponse(template.render(context))
else:
# client wanted a mimetype we don't support
return HttpResponse(req_neg.error_message, status=415)
def json_view(request, uuid):
ocitem = OCitem()
ocitem.get_item(uuid)
if(ocitem.manifest is not False):
req_neg = RequestNegotiation('application/json')
req_neg.supported_types = ['application/ld+json']
if 'HTTP_ACCEPT' in request.META:
req_neg.check_request_support(request.META['HTTP_ACCEPT'])
if req_neg.supported:
json_output = json.dumps(ocitem.json_ld,
indent=4,
ensure_ascii=False)
return HttpResponse(json_output,
content_type=req_neg.use_response_type + "; charset=utf8")
else:
# client wanted a mimetype we don't support
return HttpResponse(req_neg.error_message,
content_type=req_neg.use_response_type + "; charset=utf8",
status=415)
else:
raise Http404
def json_view_old(request, uuid):
""" returns a json representation """
ocitem = OCitem()
if 'hashes' in request.GET:
ocitem.assertion_hashes = True
ocitem.get_item(uuid)
if ocitem.manifest is not False:
request.uuid = ocitem.manifest.uuid
request.project_uuid = ocitem.manifest.project_uuid
request.item_type = ocitem.manifest.item_type
req_neg = RequestNegotiation('application/json')
req_neg.supported_types = [
'application/ld+json', 'application/vnd.geo+json'
]
if 'HTTP_ACCEPT' in request.META:
req_neg.check_request_support(request.META['HTTP_ACCEPT'])
if req_neg.supported:
request.content_type = req_neg.use_response_type
json_output = json.dumps(ocitem.json_ld,
indent=4,
ensure_ascii=False)
if 'callback' in request.GET:
funct = request.GET['callback']
return HttpResponse(funct + '(' + json_output + ');',
content_type='application/javascript' +
"; charset=utf8")
else:
return HttpResponse(json_output,
content_type=req_neg.use_response_type +
"; charset=utf8")
else:
# client wanted a mimetype we don't support
return HttpResponse(req_neg.error_message,
content_type=req_neg.use_response_type +
"; charset=utf8",
status=415)
else:
raise Http404
def projects_json(request, uuid):
""" provides a JSON-LD context for
the predicates used in a project.
DEPRECATE THIS!
"""
proj_context = ProjectContext(uuid, request)
if 'hashes' in request.GET:
proj_context.assertion_hashes = True
if proj_context.manifest is not False:
req_neg = RequestNegotiation('application/json')
req_neg.supported_types = [
'application/ld+json', 'application/vnd.geo+json'
]
if 'HTTP_ACCEPT' in request.META:
req_neg.check_request_support(request.META['HTTP_ACCEPT'])
if req_neg.supported:
json_ld = proj_context.make_context_json_ld()
json_output = json.dumps(json_ld, indent=4, ensure_ascii=False)
if 'callback' in request.GET:
funct = request.GET['callback']
return HttpResponse(funct + '(' + json_output + ');',
content_type='application/javascript' +
"; charset=utf8")
else:
return HttpResponse(json_output,
content_type=req_neg.use_response_type +
"; charset=utf8")
else:
# client wanted a mimetype we don't support
return HttpResponse(req_neg.error_message,
content_type=req_neg.use_response_type +
"; charset=utf8",
status=415)
else:
raise Http404
def index(request):
request = RequestNegotiation().anonymize_request(request)
rp = RootPath()
base_url = rp.get_baseurl()
new_url = base_url + '/search/?type=types'
return redirect(new_url, permanent=True)
def items_graph(request, identifier, return_media=None, item_type=None):
# The new Open Context OCitem generator
# that better integrates caching
oc_item = OCitem()
if 'hashes' in request.GET:
oc_item.assertion_hashes = True
if not oc_item.check_exists(identifier):
# Did not find a record for the table, check for redirects
r_ok = False
if item_type:
r_url = RedirectURL()
r_ok = r_url.get_direct_by_type_id(item_type, identifier)
if r_ok:
# found a redirect!!
return redirect(r_url.redirect, permanent=r_url.permanent)
# raise Http404
raise Http404
if item_type and item_type != oc_item.manifest.item_type:
# We have a rare case where the item_type is wrong, even though we found
# something in the manifest, so throw an error.
raise Http404
oc_item.generate_json_ld()
req_neg = RequestNegotiation('application/json')
req_neg.supported_types = ['application/ld+json']
if (not item_type
or item_type not in ['persons', 'types', 'predicates', 'tables']):
# We don't have specified item type, or the item_type is
# not for a resource that's lacking a geospatial component. Therefore,
# support GeoJSON as a media type.
req_neg.supported_types.append('application/vnd.geo+json')
req_neg.supported_types += RDF_SERIALIZATIONS
if 'HTTP_ACCEPT' in request.META:
req_neg.check_request_support(request.META['HTTP_ACCEPT'])
if return_media:
req_neg.check_request_support(return_media)
req_neg.use_response_type = return_media
# Associate the request media type with the request so we can
# make sure that different representations of this resource get different
# cache responses.
request.content_type = req_neg.use_response_type
if not req_neg.supported:
# client wanted a mimetype we don't support
response = HttpResponse(req_neg.error_message,
content_type=req_neg.use_response_type +
"; charset=utf8",
status=415)
patch_vary_headers(response, ['accept', 'Accept', 'content-type'])
return response
# Check first if the output is requested to be an RDF format
graph_output = None
if req_neg.use_response_type in RDF_SERIALIZATIONS:
json_ld = oc_item.json_ld
# We're making an RDF graph serialization, so consolidate all the
# context resources so we don't have to make Web requests to generate
# the graph
consolidated_contexts = consolidate_contexts(oc_item.json_ld)
json_ld['@context'] = consolidated_contexts
# Now make and serialize the graph
graph_output = graph_serialize(req_neg.use_response_type, json_ld)
if graph_output:
# Return with some sort of graph output
response = HttpResponse(graph_output,
content_type=req_neg.use_response_type +
"; charset=utf8")
patch_vary_headers(response, ['accept', 'Accept', 'content-type'])
return response
# We're outputing JSON
if (req_neg.use_response_type == 'application/ld+json'
or return_media == 'application/ld+json'):
# A hack to remove non-point features so JSON-LD will validate.
json_ld = strip_non_point_features(oc_item.json_ld)
else:
json_ld = oc_item.json_ld
json_output = json.dumps(json_ld, indent=4, ensure_ascii=False)
if 'callback' in request.GET:
funct = request.GET['callback']
response = HttpResponse(funct + '(' + json_output + ');',
content_type='application/javascript' +
"; charset=utf8")
patch_vary_headers(response, ['accept', 'Accept', 'content-type'])
return response
else:
response = HttpResponse(json_output,
content_type=req_neg.use_response_type +
"; charset=utf8")
patch_vary_headers(response, ['accept', 'Accept', 'content-type'])
return response
