def __call__(self, environ, start_response):
try:
method = environ.get("REQUEST_METHOD", "GET")
if method.upper() not in self.config["methods"]:
start_response("405 Method Not Allowed")
return ["405 Method Not Allowed"]
accept = environ.get("HTTP_ACCEPT", "*/*")
negotiated = negotiate(self.config["mime_types"], accept)
return self.request(environ, start_response, method, negotiated)
except:
log.error(
"%s %s %s exception:\n%s"
% (
environ.get("REMOTE_ADDR"),
environ.get("REQUEST_METHOD"),
environ.get("DOCUMENT_URI", "/"),
format_exc(),
)
)
log.error(
"%s %s %s environ:\n%s"
% (
environ.get("REMOTE_ADDR"),
environ.get("REQUEST_METHOD"),
environ.get("DOCUMENT_URI", "/"),
pformat(environ),
)
)
start_response("500 Internal Server Error", [("Content-Type", "text/plain; charset=utf-8")])
if self.opts.debug:
return [format_exc()]
else:
return ["Oops. The admin should look at the logs"]
def read(self, id):
context = {'model': model, 'session': model.Session,
'user': c.user or c.author, 'extras_as_string': True,
'schema': self._form_to_db_schema()}
data_dict = {'id': id}
split = id.split('@')
if len(split) == 2:
data_dict['id'], revision = split
try:
date = datetime.datetime(*map(int, re.split('[^\d]', revision)))
context['revision_date'] = date
except ValueError:
context['revision_id'] = revision
#check if package exists
try:
c.pkg_dict = get.package_show(context, data_dict)
c.pkg = context['package']
except NotFound:
abort(404, _('Package not found'))
except NotAuthorized:
abort(401, _('Unauthorized to read package %s') % id)
cache_key = self._pkg_cache_key(c.pkg)
etag_cache(cache_key)
#set a cookie so we know whether to display the welcome message
c.hide_welcome_message = bool(request.cookies.get('hide_welcome_message', False))
response.set_cookie('hide_welcome_message', '1', max_age=3600) #(make cross-site?)
# used by disqus plugin
c.current_package_id = c.pkg.id
if config.get('rdf_packages'):
accept_header = request.headers.get('Accept', '*/*')
for content_type, exts in negotiate(autoneg_cfg, accept_header):
if "html" not in exts:
rdf_url = '%s%s.%s' % (config['rdf_packages'], c.pkg.id, exts[0])
redirect(rdf_url, code=303)
break
PackageSaver().render_package(c.pkg_dict, context)
return render('package/read.html')
c.hide_welcome_message = bool(request.cookies.get('hide_welcome_message', False))
response.set_cookie('hide_welcome_message', '1', max_age=3600) #(make cross-site?)
# used by disqus plugin
c.current_package_id = c.pkg.id
# Add the package's activity stream (already rendered to HTML) to the
# template context for the package/read.html template to retrieve
# later.
c.package_activity_stream = \
ckan.logic.action.get.package_activity_list_html(context,
{'id': c.current_package_id})
if config.get('rdf_packages'):
accept_header = request.headers.get('Accept', '*/*')
for content_type, exts in negotiate(autoneg_cfg, accept_header):
if "html" not in exts:
rdf_url = '%s%s.%s' % (config['rdf_packages'], c.pkg.id, exts[0])
redirect(rdf_url, code=303)
break
PackageSaver().render_package(c.pkg_dict, context)
return render('package/read.html')
def comments(self, id):
package_type = self._get_package_type(id)
context = {'model': model, 'session': model.Session,
'user': c.user or c.author, 'extras_as_string': True,}
#check if package exists
try:
abort(404, _('Package not found'))
except NotAuthorized:
abort(401, _('Unauthorized to read package %s') % id)
#set a cookie so we know whether to display the welcome message
c.hide_welcome_message = bool(
request.cookies.get('hide_welcome_message', False))
response.set_cookie('hide_welcome_message', '1',
max_age=3600) #(make cross-site?)
# used by disqus plugin
c.current_package_id = c.pkg.id
if config.get('rdf_packages'):
accept_header = request.headers.get('Accept', '*/*')
for content_type, exts in negotiate(autoneg_cfg, accept_header):
if "html" not in exts:
rdf_url = '%s%s.%s' % (config['rdf_packages'], c.pkg.id,
exts[0])
redirect(rdf_url, code=303)
break
PackageSaver().render_package(c.pkg_dict, context)
return render('package/read.html')
def comments(self, id):
context = {
'model': model,
'session': model.Session,
'user': c.user or c.author,
'extras_as_string': True,
def on_search(self, request, index):
if index not in self.indexes:
raise NotFound("index %s" % index)
node = self.indexes[index]["node"]
if "predicate" in request.args:
predicate = request.args["predicate"]
else:
predicate = "nearest"
if predicate not in ["intersects", "contains", "nearest"]:
msg = { "message": "predicate must be one of intersects, contains, hearest" }
raise BadRequest(json.dumps(msg))
operand = None
if "wkt" in request.args:
operand = ogr.CreateGeometryFromWkt(request.args["wkt"])
elif "bbox" in request.args:
bbox = request.args["bbox"].split(",")
try:
miny, minx, maxy, maxx = [Decimal(x.strip()) for x in bbox]
except:
msg = { "message": "invalid bounding box" }
raise BadRequest(json.dumps(msg))
bbox = "POLYGON((%s %s, %s %s, %s %s, %s %s, %s %s))" % (
minx, miny, minx, maxy, maxx, maxy, maxx, miny, minx, miny
)
operand = ogr.CreateGeometryFromWkt(bbox)
elif "circle" in request.args:
spec = request.args["circle"].split(",")
try:
y,x,r = [Decimal(x.strip()) for x in spec]
except:
msg = { "message": "invalid circle specification" }
raise BadRequest(json.dumps(msg))
centre = ogr.CreateGeometryFromWkt("POINT(%s %s)" % (x, y))
### radius is given in kilometers. the delta is in
### degrees. this approximation works only away
### from the poles and for small radii. the magic
### number is the radius of the earth in meters
delta = degrees(float(r) / (6371.0 * cos(radians(x))))
operand = centre.Buffer(delta)
if operand is None:
msg = { "message": "missing or invalid spatial argument (bbox or wkt)" }
raise BadRequest(json.dumps(msg))
if operand.GetGeometryType() == ogr.wkbPoint:
operand = operand.Buffer(0.0001)
if predicate == "intersects":
results = node.intersection(operand)
elif predicate == "contains":
results = node.contains(operand)
elif predicate == "nearest":
try:
limit = int(request.args["limit"])
except:
limit = 10
results = node.nearest(operand, limit)
try:
limit = int(request.args["limit"])
except:
limit = 10
if limit > 1000:
limit = 1000
try:
offset = int(request.args["offset"])
except:
offset = 0
if "type" in request.args or "text" in request.args:
results = parse_graph(results)
if "type" in request.args:
results = filter_types(results, *(URIRef(x) for x in request.args.getlist("type")))
if "text" in request.args:
results = filter_text(results, request.args["text"])
if "type" in request.args or "text" in request.args:
results = trim_graph(results)
results = filter_offset(results, offset)
results = filter_limit(results, limit)
ancfg = (
("text", "turtle", ["turtle"]),
("text", "javascript", ["rdf-json"]),
("text", "n-triples", ["ntriples"]),
("text", "n-quads", ["nquads"]),
("application", "rdf+xml", ["xml"]),
("application", "json", ["rdf-json"]),
)
query = request.args.get("query")
if query is None:
data = json.dumps(list(results))
response = Response(data, mimetype="application/json")
elif query == "closure":
accept = request.headers.get("Accept", "*/*")
candidates = list(negotiate(ancfg, accept))
if len(candidates) == 0:
raise NotAcceptable()
mime_type = candidates[0][0]
format = candidates[0][1][0]
cg = ConjunctiveGraph()
for obj in results:
### this shouldn't decode / reencode the json here!
json_description = json.dumps(obj["json_description"])
g = Graph(identifier=URIRef(obj["graph"]), store=cg.store)
RdfJsonParser().parse_json(obj["json_description"], g)
data = cg.serialize(format=format)
response = Response(data, mimetype=mime_type)
else:
raise BadRequest("no idea what kind of query that is")
return response
