a&a

Dockerfile

@@ -10,6 +10,10 @@ ENV DB_HOST="172.16.10.18"
 ENV DB_NAME="hausverwaltung"
 ENV DB_USER="hausverwaltung-ui"
 ENV DB_PASS="test123"
+ENV JWT_ISSUER='de.hottis.hausverwaltung'
+ENV JWT_SECRET='streng_geheim'
+ENV JWT_LIFETIME_SECONDS=60
+ENV JWT_ALGORITHM='HS256'
 
 
 RUN \

ENV.tmpl

@@ -5,3 +5,4 @@ export DB_USER="hausverwaltung-ui"
 export DB_PASS="test123"
 export DB_NAME="hausverwaltung"
 
+export JWT_SECRET='streng_geheim'

Mieter.py

@@ -1,6 +1,8 @@
 from dbpool import getConnection, getMany, getOne
+from auth import check_scope
 
-def get_mieters():
+def get_mieters(token_info):
+    check_scope(token_info, [ "mieter/read", "wohnung/read", "objekt/read" ])
     return getMany("""
 SELECT m.id as id, 
        o.id as objekt,
@@ -21,7 +23,8 @@ SELECT m.id as id,
         w.id = m.wohnung
     """, [], "Mieter")
 
-def get_mieter(id=None):
+def get_mieter(id, token_info):
+    check_scope(token_info, [ "mieter/read", "wohnung/read", "objekt/read" ])
     return getOne("""
 SELECT m.id as id, 
        o.id as objekt,

Objekte.py

@@ -1,8 +1,11 @@
 from dbpool import getConnection, getMany, getOne
+from auth import check_scope
 
-def get_objekte():
+def get_objekte(token_info):
+    check_scope(token_info, "objekt/read")
     return getMany("SELECT id, shortname, flaeche FROM objekt", [], "Objekt")
 
-def get_objekt(id=None):
+def get_objekt(id, token_info):
+    check_scope(token_info, "objekt/read")
     return getOne("SELECT id, shortname, flaeche FROM objekt WHERE id = ?", 
                   (id,), "Objekt")

Wohnungen.py

@@ -1,6 +1,9 @@
 from dbpool import getConnection, getOne, getMany
+from auth import check_scope
 
-def get_wohnungen():
+
+def get_wohnungen(token_info):
+    check_scope(token_info, "wohnung/read")
     return getMany("""
 SELECT w.id as id, 
        w.objekt as objekt, 
@@ -11,7 +14,8 @@ SELECT w.id as id,
   WHERE o.id = w.objekt
 """, [], "Wohnung")
 
-def get_wohnung(id=None):
+def get_wohnung(id, token_info):
+    check_scope(token_info, [ "wohnung/read", "objekt/read" ])
     return getOne("""
 SELECT w.id as id, 
        w.objekt as objekt, 
@@ -23,7 +27,8 @@ SELECT w.id as id,
         w.id = ?
 """, (id, ), "Wohnung")
 
-def get_wohnungen_by_objekt(id):
+def get_wohnungen_by_objekt(id, token_info):
+    check_scope(token_info, [ "wohnung/read", "objekt/read" ])
     return getMany("""
 SELECT w.id as id, 
        w.objekt as objekt, 

ZahlungenForderungen.py

@@ -2,8 +2,10 @@ from dbpool import getConnection, getOne, getMany, putOne
 import datetime
 import decimal
 import dateparser
+from auth import check_scope
 
-def get_zahlungen_by_mieter(mieter_id):
+def get_zahlungen_by_mieter(mieter_id, token_info):
+  check_scope(token_info, "zahlung/read")
   return getMany("""
 SELECT id, 
        mieter, 
@@ -28,7 +30,8 @@ SELECT id,
 """, [ id ], "Zahlung")
 
 
-def get_forderungen_by_mieter(mieter_id):
+def get_forderungen_by_mieter(mieter_id, token_info):
+  check_scope(token_info, "forderung/read")
   return getMany("""
 SELECT id, 
        mieter,
@@ -40,7 +43,8 @@ SELECT id,
   WHERE mieter = ?
 """, [ mieter_id ], "Forderung")
 
-def get_forderung(id):
+def get_forderung(id, token_info):
+  check_scope(token_info, "forderung/read")
   return getOne("""
 SELECT id, 
        mieter,
@@ -52,7 +56,8 @@ SELECT id,
   WHERE id = ?
 """, [ id ], "Forderung")
 
-def get_zahlungforderung_by_mieter_and_year(mieter_id, year):
+def get_zahlungforderung_by_mieter_and_year(mieter_id, year, token_info):
+  check_scope(token_info, [ "forderung/read", "zahlung/read", "mieter/read" ])
   if year == 0:
     year = datetime.datetime.now().year
   start_date = "{}-01-01".format(year)
@@ -72,7 +77,8 @@ WHERE mieter = ? AND
   datum_soll BETWEEN ? AND ?
 """, [mieter_id, start_date, end_date], "ZahlungForderung")
 
-def get_saldo_by_mieter_and_year(mieter_id, year):
+def get_saldo_by_mieter_and_year(mieter_id, year, token_info):
+  check_scope(token_info, [ "forderung/read", "zahlung/read", "mieter/read" ])
   if year == 0:
     year = datetime.datetime.now().year
   start_date = "{}-01-01".format(year)
@@ -106,7 +112,8 @@ WHERE mieter = ? AND
     "zahlungen": float(sumZ)
   }
 
-def put_zahlung(zahlung):
+def put_zahlung(zahlung, token_info):
+  check_scope(token_info, "zahlung/write")
   print("Input of put_zahlung: {} {}".format(type(zahlung), zahlung))
   datum_soll = dateparser.parse(zahlung["datum_soll"], languages=["de"])
   datum_ist = dateparser.parse(zahlung["datum_ist"], languages=["de"])

auth.py

@@ -0,0 +1,44 @@
+import time
+import connexion
+from werkzeug.exceptions import Unauthorized, Forbidden
+from jose import JWTError, jwt
+import os
+
+JWT_SECRET = os.environ['JWT_SECRET']
+
+
+
+def decode_token(token):
+    try:
+        print("DEBUG decode_token: try to decode")
+        token_info = jwt.decode(token, JWT_SECRET)
+        print("DEBUG decode_token: token_info: {}".format(token_info))
+        return token_info
+    except JWTError as e:
+        print("ERROR decode_token: error when decoding token: {}".format(e))
+        raise Unauthorized()
+
+def check_token(token, key, value):
+    if (key in token) and ((token[key] == value) or (isinstance(token[key], list) and (value in token[key]))):
+        return True
+    print("WARN: check_token: {} -> {} required but not granted".format(key, value))
+    raise Forbidden()
+
+def check_scope(token, value):
+    if isinstance(value, list):
+        for v in value:
+            check_token(token, "x-scope", v)
+    else:
+        check_token(token, "x-scope", value)
+
+def get_secret(user, token_info) -> str:
+    return '''
+    You are user_id {user} and the secret is 'wbevuec'.
+    Decoded token claims: {token_info}.
+    '''.format(user=user, token_info=token_info)
+
+
+
+def _current_timestamp() -> int:
+    return int(time.time())
+

openapi.yaml

@@ -3,6 +3,9 @@ info:
   title: Hausverwaltung
   version: "0.1"
 
+security:
+  - jwt: []
+
 paths:
   /hv/objekte:
     get:
@@ -126,6 +129,9 @@ paths:
           description: No Mieter available
         500:
           description: Some server error
+      security:
+      - jwt: ['secret']
+
   /hv/mieter/{id}:
     get:
       tags: [ "Mieter" ]
@@ -296,24 +302,43 @@ paths:
           description: Neither Forderungen nor Zahlungen available
         500:
           description: Some server error
-#  /hv/zahlung:
+  /hv/zahlung:
-#    post:
+    post:
-#      tags: [ "Zahlung" ]
+      tags: [ "Zahlung" ]
-#      operationId: ZahlungenForderungen.put_zahlung
+      operationId: ZahlungenForderungen.put_zahlung
-#      summary: Inserts a new Zahlung
+      summary: Inserts a new Zahlung
-#      parameters:
+      requestBody:
-#        - name: zahlung
+        content:
-#          in: body
+          'application/json':
-#          schema:
+            schema:
-#            $ref: '#/components/schemas/Zahlung'
+              $ref: '#/components/schemas/Zahlung'
-#      responses:
+      responses:
-#        202:
+        202:
-#          description: Zahlung successfully inserted
+          description: Zahlung successfully inserted
-#        500:
+        500:
-#          description: Some server or database error
+          description: Some server or database error
+  /secret:
+    get:
+      tags: [ "JWT" ]
+      summary: Return secret string
+      operationId: auth.get_secret
+      responses:
+        '200':
+          description: secret response
+          content:
+            'text/plain':
+              schema:
+                type: string
+
 
 
 components:
+  securitySchemes:
+    jwt:
+      type: http
+      scheme: bearer
+      bearerFormat: JWT
+      x-bearerInfoFunc: auth.decode_token
   schemas:
     Objekt:
       description: Objekt type

run.sh

@@ -15,4 +15,8 @@ docker run \
     -e DB_USER=$DB_USER \
     -e DB_PASS=$DB_PASS \
     -e DB_NAME=$DB_NAME \
+    -e JWT_ISSUER=$JWT_ISSUER \
+    -e JWT_SECRET=$JWT_SECRET \
+    -e JWT_LIFETIME_SECONDS=$JWT_LIFETIME_SECONDS \
+    -e JWT_ALGORITHM=$JWT_ALGORITHM
     ${IMAGE_NAME}:${VERSION}

server.py

@@ -3,7 +3,7 @@ from flask_cors import CORS
 
 # instantiate the webservice
 app = connexion.App(__name__)
-app.add_api('swagger.yaml')
+app.add_api('openapi.yaml')
 
 # CORSify it - otherwise Angular won't accept it
 CORS(app.app)