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import http.server
import json
from mec_database import mec_database
# This class will handles any incoming request from the browser
class myHandler(http.server.BaseHTTPRequestHandler):
__db__ = mec_database()
# Handler for the GET requests
def do_GET(self):
print(">>> do_GET: ", self.path)
self.protocol_version = self.request_version
# Check HTTP end_headers
if self.__check_http_headers__() == False:
resp = "{\"problemDetails\": {\t\"type\": \"Bad Request\",\t\"title\": \"N/A\",\t\"status\": 400,\t\"detail\": \"Wrong headers\",\t\"instance\": \"N/A\"}}"
self.send_response(400, 'Bad Request')
self.send_header('Host', self.headers.get('Host'))
self.send_header('Authorization', self.headers.get('Authorization'))
self.send_header('Content-Type', "application/problem+json")
l = len(resp)
self.send_header('Content-Length', str(l))
self.end_headers()
self.wfile.write(bytes(resp, 'utf-8'))
return
resp, content_type = self.__process__()
print("do_GET: resp= ", resp, ", Content_Type= ", content_type)
if (resp == None):
self.send_response(404, 'Not Found')
self.send_header('Host', self.headers.get('Host'))
self.send_header('Authorization', self.headers.get('Authorization'))
self.send_header('Content-Type', content_type)
self.send_header('Content-Length', '0')
self.end_headers()
else:
if resp.find('Not Found') != -1:
self.send_response(404, 'Not Found')
elif resp.find('Forbidden') != -1:
self.send_response(403, 'Forbidden')
elif resp.find('Bad Request') != -1:
self.send_response(400, 'Bad Request')
else:
self.send_response(200, 'OK')
self.send_header('Host', self.headers.get('Host'))
self.send_header('Authorization', self.headers.get('Authorization'))
self.send_header('Content-Type', content_type)
l = len(resp)
self.send_header('Content-Length', str(l))
self.end_headers()
self.wfile.write(bytes(resp, 'utf-8'))
# End of do_GET
# Handler for the POST requests
def do_POST(self):
print(">>> do_POST: ", self.path)
self.protocol_version = self.request_version
# Check HTTP end_headers
if self.__check_http_headers__() == False:
resp = "{\"problemDetails\": {\t\"type\": \"Bad Request\",\t\"title\": \"N/A\",\t\"status\": 400,\t\"detail\": \"Wrong headers\",\t\"instance\": \"N/A\"}}"
self.protocol_version = self.request_version
self.send_response(400, 'Bad Request')
self.send_header('Host', self.headers.get('Host'))
self.send_header('Authorization', self.headers.get('Authorization'))
self.send_header('Content-Type', "application/problem+json")
l = len(resp)
self.send_header('Content-Length', str(l))
self.end_headers()
self.wfile.write(bytes(resp, 'utf-8'))
return
resp, content_type = self.__process__()
print("do_POST: resp= ", resp, ", Content_Type= ", content_type)
if (resp == None):
self.send_response(404, 'Not Found')
self.send_header('Host', self.headers.get('Host'))
self.send_header('Authorization', self.headers.get('Authorization'))
self.send_header('Content-Type', content_type)
self.send_header('Content-Length', '0')
self.end_headers()
else:
if resp.find('Not Found') != -1:
self.send_response(404, 'Not Found')
elif resp.find('Forbidden') != -1:
self.send_response(403, 'Forbidden')
elif resp.find('Bad Request') != -1:
self.send_response(400, 'Bad Request')
else:
self.send_response(200, 'OK')
self.send_header('Host', self.headers.get('Host'))
self.send_header('Content-Type', content_type)
self.send_header('Authorization', self.headers.get('Authorization'))
self.send_header('Content-Type', content_type)
l = len(resp)
self.send_header('Content-Length', str(l))
self.end_headers()
self.wfile.write(bytes(resp, 'utf-8'))
# End of do_POST
# Check HTTP headers
def __check_http_headers__(self):
print (">>> __check_http_headers__")
result = True
host = self.headers.get('Host')
if host == None:
print("__check_http_headers__: Failed to parse 'Host' header")
result = False
content_type = self.headers.get('Content-Type')
if content_type != "application/json":
print("__check_http_headers__: Failed to parse 'Content-Type' header")
result = False
auth = self.headers.get('Authorization')
if auth == None:
print("__check_http_headers__: Failed to parse 'Authorization' header")
result = False
return result
# End of __check_http_headers__
# Process the request
def __process__(self):
s = self.path.split('/')
print (">>> __process__: ", s)
if s[1] != 'exampleAPI':
return None, "application/json"
# TODO Check HTTP headers
if s[2] == 'location' and ((s[3] == 'v1') or (s[3] == 'v2')):
return self.__process__location__api__(s)
elif s[2] == 'ui' and ((s[3] == 'v1') or (s[3] == 'v2')):
return self.__process__ue__identity__api__(s)
elif s[2] == 'rni' and ((s[3] == 'v1') or (s[3] == 'v2')):
return self.__process__rnis__api__(s)
elif s[2] == 'bwm' and ((s[3] == 'v1') or (s[3] == 'v2')):
return self.__process__bwm__api__(s)
else:
return None, "application/json"
# End of __process__
# Process the LocationAPI request
def __process__location__api__(self, p_split):
print (">>> __process__location__api__: ", p_split)
resp = None
content_type = "application/json"
if p_split[4].startswith('users'): # E.g. users?zoneId=zone01
s = p_split[4].split('?')
if s.__len__() == 1: # Users list requested
resp = self.__db__.getSubscriberList(self.path)
elif s.__len__() == 2: # E.g. zoneId=zone01
s = s[1].split('=')
if s[0] == 'zoneId': # Users list into a specific zoneId requested
resp = self.__db__.getSubscriberFromZoneId(s[1], self.path)
elif s[0] == 'address':
resp = self.__db__.getSubscriberFromAddress(s[1])
elif p_split[4] == 'zones':
if p_split.__len__() == 5:
s = p_split[4].split('?')
print("__process__location__api__: ", s)
if s.__len__() == 1: # A list requested
if s[0] == 'zones':
resp = self.__db__.getZoneList(self.path)
else:
resp = "{\"Unsupported zone request\"}"
elif s.__len__() == 2: # E.g. ?
resp = "{\"Unsupported zone request\"}"
else:
resp = "{\"Unsupported " + p_split[4] + " request\"}"
elif p_split.__len__() == 7:
if p_split[6] == 'accessPoints':
resp = self.__db__.getAccessPointList(p_split[5], self.path)
else:
resp = "{\"Unsupported " + p_split[5] + " request\"}"
else:
resp = "{\"Unsupported " + p_split[4] + " request\"}"
else:
resp = "{\"Unsupported " + p_split[4] + " request\"}"
print ("<<< __process__location__api__: ", resp, ", ", content_type)
return resp, content_type
# End of __process__location__api__
# Process the ue_identityAPI request
def __process__ue__identity__api__(self, p_split):
print (">>> __process__ue__identity__api__: ", p_split)
resp = None
content_type = "application/json"
if p_split[4] == 'appInst98': # Used for unknown application, e.g. TC_MEC_PLAT_UETAG_003_BI
resp = "{\"problemDetails\": {\t\"type\": \"Not Authorized\",\t\"title\": \"UEidentityAPI\",\t\"status\": 403,\t\"detail\": \"Forbidden\",\t\"instance\": \"AppInst98\"}}"
else:
if p_split[5].startswith('ue_identity_tag_info'): # E.g. ue_identity_tag_info?ueIdentityTag=UeTagA
s = p_split[5].split('?')
if s[0] != 'ue_identity_tag_info':
resp = "{\"problemDetails\": {\t\"type\": \"Bad Request\",\t\"title\": \"UEidentityAPI\",\t\"status\": 400,\t\"detail\": \"Wrong parameters\",\t\"instance\": \"string\"}}"
elif s.__len__() == 1: # ue_identity_tag_info, POST
# Register/Unregister operation
body = None
# Extract the body if any
content_len = int(self.headers.get('Content-Length'))
if (content_len != 0):
body = self.rfile.read(content_len)
json_msg = self.__decode__json__body__(body)
if (json_msg == None):
resp = "{\"problemDetails\": {\t\"type\": \"Body processing not supported\",\t\"title\": \"UEidentityAPI\",\t\"status\": 400,\t\"detail\": \"Unknown request\",\t\"instance\": \"string\"}}"
else:
resp = self.__db__.registerUEidentity(p_split[4], json_msg)
elif s.__len__() == 2: # E.g. ueIdentityTag=UeTagA
s = s[1].split('=')
if s[0] == 'ueIdentityTag': # Users list into a specific zoneId requested
resp = self.__db__.getUEidentityTagInfo(p_split[4], s[1])
if (resp == None):
resp = "{\"problemDetails\": {\t\"type\": \"Not Found\",\t\"title\": \"UEidentityAPI\",\t\"status\": 404,\t\"detail\": \"Wrong parameters\",\t\"instance\": \"string\"}}"
content_type = "application/problem+json"
if (resp == None):
resp = "{\"problemDetails\": {\t\"type\": \"Bad Request\",\t\"title\": \"UEidentityAPI\",\t\"status\": 400,\t\"detail\": \"Wrong parameters\",\t\"instance\": \"string\"}}"
content_type = "application/problem+json"
elif resp.find('problemDetails') != -1:
content_type = "application/problem+json"
print ("<<< __process__ue__identity__api__: ", resp, ", ", content_type)
return resp, content_type
# End of __process__ue__identity__api__
# Process the RnisAPI request
def __process__rnis__api__(self, p_split):
print (">>> __process__rnis__api__: ", p_split)
resp = None
content_type = "application/json"
if p_split[4].startswith('subscriptions'):
if p_split.__len__() == 6:
if p_split[5] == '':
resp = self.__db__.getSubscriptionLinkList(self.path)
if (resp == None):
resp = "{\"problemDetails\": {\t\"type\": \"Not supported\",\t\"title\": \"RnisAPI\",\t\"status\": 400,\t\"detail\": \"Wrong parameters\",\t\"instance\": \"string\"}}"
content_type = "application/problem+json"
print ("<<< __process__rnis__api__: ", resp, ", ", content_type)
return resp, content_type
# End of __process__rnis__api__
# Process the BwManagementAPI request
def __process__bwm__api__(self, p_split):
print (">>> __process__bwm__api__: ", p_split)
resp = None
content_type = "application/json"
if p_split[4].startswith('bw_allocations'): # E.g. bw_allocation?app_instance_id=InstApp01
s = p_split[4].split('?')
if s.__len__() == 1: # ue_identity_tag_info, POST
# Register/Unregister operation
body = None
# Extract the body if any
content_len = int(self.headers.get('Content-Length'))
if (content_len != 0):
body = self.rfile.read(content_len)
json_msg = self.__decode__json__body__(body)
if (json_msg == None):
resp = "{\"problemDetails\": {\t\"type\": \"Body processing not supported\",\t\"title\": \"BwManagementAPI\",\t\"status\": 400,\t\"detail\": \"Unknown request\",\t\"instance\": \"string\"}}"
content_type = "application/problem+json"
else:
resp = self.__db__.bwAllocation(json_msg)
elif s.__len__() == 2: # E.g. app_instance_id=InstApp01
s = s[1].split('=')
if s[0] == 'app_instance_id':
resp = self.__db__.getBwAllocationAppInst(p_split[4], s[1])
if (resp == None):
resp = "{\"problemDetails\": {\t\"type\": \"Not supported\",\t\"title\": \"BwManagementAPI\",\t\"status\": 400,\t\"detail\": \"Wrong parameters\",\t\"instance\": \"string\"}}"
content_type = "application/problem+json"
print ("<<< __process__bwm__api__: ", resp, ", ", content_type)
return resp, content_type
# End of __process__bwm__api__
# Decode a Json HTTP body message
def __decode__json__body__(self, p_body):
json_msg = json.loads(p_body)
print("__decode__json__body__: ", type(json_msg))
if ("ueIdentityTags" in json_msg.keys()) == False:
return None
return json_msg.get("ueIdentityTags")[0]
# End of __decode__json__body__
# End of class SimpleHTTPRequestHandler