class APIHandler(webapp.RequestHandler):
def __init__( self ):
webapp.RequestHandler.__init__( self )
self.log = getLogger()
self.dao = DAO()
self.xml_gen = XMLGenerator()
def decode_short_url(self, url ):
"""
Decodes short url.
This is really duplicated code, which is bad.
But its really only a 1 liner.
"""
full_url = None
self.log.info("APIHandler::decode_short_url start")
try:
self.log.debug("short url " + str( url ) )
if url != None and url != "":
full_url = self.dao.get_long_url( short_url )
self.log.debug("long url " + str( full_url ) )
except:
self.log.error("APIHandler::decode_short_url ex " + traceback.format_exc() )
return full_url
def get(self, command ):
"""
Can issue 3 types of commands.
1) Get a LONG_URL from a short url
2) Assign a LONG_URL to a given short_url
3) Assign a LONG_URL to a random url.
"""
try:
self.log.debug("command is " + str( command ) )
if command == "get":
url = self.request.get("short_url")
if url != None and url != "":
full_url = self.dao.get_long_url( url )
if full_url != None and full_url != "":
res = self.xml_gen.generate_successful_get( full_url )
else:
res = self.xml_gen.generate_unsuccessful_get( url )
self.response.out.write( res )
else:
if command == "set":
short_url = self.request.get("short_url")
full_url = self.request.get("full_url")
creator = self.request.get("creator")
tags = self.request.get("tags")
if short_url != None and short_url != "" and full_url != None and full_url != "" and creator != None and creator != "" :
result_url, status_code = self.dao.replace_entry( short_url, full_url, creator, tags )
if status_code == StatusCodes.SUCCESSFUL:
res = self.xml_gen.generate_successful_set( )
else:
res = self.xml_gen.generate_unsuccessful_set( status_code )
self.response.out.write( res )
else:
if command == "list":
creator = self.request.get("creator")
if creator != None and creator != "":
entry_list = self.dao.get_all_entries_for_creator( creator )
self.log.debug("entry list " + str( entry_list ) )
if entry_list != None and entry_list != [] :
res = self.xml_gen.generate_successful_list( entry_list)
else:
res = self.xml_gen.generate_unsuccessful_List( creator )
self.response.out.write( res )
except:
self.log.error("APIHandler::get ex " + traceback.format_exc() )
