def image_information_response(self):
"""Parse image information request and create response."""
dr = degraded_request(self.identifier)
if (dr):
self.logger.info("image_information: degraded %s -> %s" % (self.identifier,dr))
self.degraded = self.identifier
self.identifier = dr
else:
self.logger.info("image_information: %s" % (self.identifier))
# get size
self.manipulator.srcfile=self.file
self.manipulator.do_first()
# most of info.json comes from config, a few things specific to image
info = { 'tile_height': self.config.tile_height,
'tile_width': self.config.tile_width,
'scale_factors' : self.config.scale_factors
}
i = IIIFInfo(conf=info,api_version=self.api_version)
i.server_and_prefix = self.server_and_prefix
i.identifier = self.iiif.identifier
i.width = self.manipulator.width
i.height = self.manipulator.height
if (self.api_version>='2.0'):
i.qualities = [ "default", "color", "gray" ] #FIXME - should come from manipulator
else:
i.qualities = [ "native", "color", "gray" ] #FIXME - should come from manipulator
i.formats = [ "jpg", "png" ] #FIXME - should come from manipulator
if (self.auth):
self.auth.add_services(i)
return self.make_response(i.as_json(),content_type=self.json_mime_type)
def image_information_response(self):
"""Parse image information request and create response."""
dr = degraded_request(self.identifier)
if (dr):
self.logger.info("image_information: degraded %s -> %s" %
(self.identifier, dr))
self.degraded = self.identifier
self.identifier = dr
else:
self.logger.info("image_information: %s" % (self.identifier))
# get size
self.manipulator.srcfile = self.file
self.manipulator.do_first()
# most of info.json comes from config, a few things specific to image
info = {
'tile_height': self.config.tile_height,
'tile_width': self.config.tile_width,
'scale_factors': self.config.scale_factors
}
# calculate scale factors if not hard-coded
if ('auto' in self.config.scale_factors):
info['scale_factors'] = self.manipulator.scale_factors(
self.config.tile_width, self.config.tile_height)
i = IIIFInfo(conf=info, api_version=self.api_version)
i.server_and_prefix = self.server_and_prefix
i.identifier = self.iiif.identifier
i.width = self.manipulator.width
i.height = self.manipulator.height
if (self.api_version >= '2.0'):
# FIXME - should come from manipulator
i.qualities = ["default", "color", "gray"]
else:
# FIXME - should come from manipulator
i.qualities = ["native", "color", "gray"]
i.formats = ["jpg", "png"] # FIXME - should come from manipulator
if (self.auth):
self.auth.add_services(i)
return self.make_response(
i.as_json(), headers={"Content-Type": self.json_mime_type})
def image_information_response(self):
"""Parse image information request and create response."""
dr = degraded_request(self.identifier)
if dr:
self.logger.info("image_information: degraded %s -> %s" % (self.identifier, dr))
self.degraded = self.identifier
self.identifier = dr
else:
self.logger.info("image_information: %s" % (self.identifier))
# get size
self.manipulator.srcfile = self.file
self.manipulator.do_first()
# most of info.json comes from config, a few things specific to image
info = {
"tile_height": self.config.tile_height,
"tile_width": self.config.tile_width,
"scale_factors": self.config.scale_factors,
}
# calculate scale factors if not hard-coded
if "auto" in self.config.scale_factors:
info["scale_factors"] = self.manipulator.scale_factors(self.config.tile_width, self.config.tile_height)
i = IIIFInfo(conf=info, api_version=self.api_version)
i.server_and_prefix = self.server_and_prefix
i.identifier = self.iiif.identifier
i.width = self.manipulator.width
i.height = self.manipulator.height
if self.api_version >= "2.0":
# FIXME - should come from manipulator
i.qualities = ["default", "color", "gray"]
else:
# FIXME - should come from manipulator
i.qualities = ["native", "color", "gray"]
i.formats = ["jpg", "png"] # FIXME - should come from manipulator
if self.auth:
self.auth.add_services(i)
return self.make_response(i.as_json(), headers={"Content-Type": self.json_mime_type})
def do_GET_body(self):
iiif=self.iiif
if (len(self.path)>1024):
raise IIIFError(code=414,
text="URI Too Long: Max 1024 chars, got %d\n" % len(self.path))
#print "GET " + self.path
try:
iiif.parse_url(self.path)
except IIIFRequestBaseURI as e:
info_uri = self.server_and_prefix + '/' + urllib.quote(self.iiif.identifier) + '/info.json'
raise IIIFError(code=303,
headers={'Location': info_uri})
except IIIFError as e:
# Pass through
raise e
except Exception as e:
# Something completely unexpected => 500
raise IIIFError(code=500,
text="Internal Server Error: unexpected exception parsing request (" + str(e) + ")")
# URL path parsed OK, now determine how to handle request
if (re.match('[\w\.\-]+$',iiif.identifier)):
file = os.path.join(IIIFRequestHandler.IMAGE_DIR,iiif.identifier)
if (not os.path.isfile(file)):
images_available=""
for image_file in os.listdir(IIIFRequestHandler.IMAGE_DIR):
if (os.path.isfile(os.path.join(IIIFRequestHandler.IMAGE_DIR,image_file))):
images_available += " "+image_file+"\n"
raise IIIFError(code=404,parameter="identifier",
text="Image resource '"+iiif.identifier+"' not found. Local image files available:\n" + images_available)
else:
raise IIIFError(code=404,parameter="identifier",
text="Image resource '"+iiif.identifier+"' not found. Only local test images and http: URIs for images are supported.\n")
#
self.compliance_level=self.manipulator.complianceLevel
# Do we have auth?
if (self.auth_type == 'basic'):
auth_map = parse_authorization_header(self.headers.get('Authorization',''))
if (auth_map and auth_map['type']=='basic' and
auth_map['username']+':'+auth_map['password']==IIIFRequestHandler.USER_PASS):
# authz, continue
pass
else:
# failed, send 401 with null image info, no service link for auth as
# basic auth is all done via the WWW-Authenticate header
i = IIIFInfo(api_version=self.api_version)
i.identifier = 'null'
i.width = 0
i.height = 0
return self.send_json_response(json=i.as_json(),status=401)
if (self.iiif.info):
# get size
self.manipulator.srcfile=file
self.manipulator.do_first()
# most of info.json comes from config, a few things specific to image
i = IIIFInfo(conf=IIIFRequestHandler.INFO,api_version=self.api_version)
i.server_and_prefix = self.server_and_prefix
i.identifier = self.iiif.identifier
i.width = self.manipulator.width
i.height = self.manipulator.height
i.qualities = [ "native", "color" ] #FIXME - should come from manipulator
i.formats = [ "jpg", "png" ] #FIXME - should come from manipulator
return self.send_json_response(i.as_json(),200)
else:
if (self.api_version<'2.0' and
self.iiif.format is None and
'Accept' in self.headers):
# In 1.0 and 1.1 conneg was specified as an alternative to format, see:
# http://iiif.io/api/image/1.0/#format
# http://iiif.io/api/image/1.1/#parameters-format
formats = { 'image/jpeg': 'jpg', 'image/tiff': 'tif',
'image/png': 'png', 'image/gif': 'gif',
'image/jp2': 'jps', 'application/pdf': 'pdf' }
accept = do_conneg( self.headers['Accept'], formats.keys() )
# Ignore Accept header if not recognized, should this be an error instead?
if (accept in formats):
self.iiif.format = formats[accept]
(outfile,mime_type)=self.manipulator.derive(file,iiif)
return self.send_good_response(open(outfile,'r'),mime_type)
