pubkey stuff, remove debug

Dockerfile

@@ -24,7 +24,8 @@ RUN \
     pip3 install uwsgi && \
     pip3 install flask-cors && \
     pip3 install six && \
-    pip3 install python-jose[cryptography]
+    pip3 install python-jose[cryptography] && \
+    pip3 install pbkdf2
 
 RUN \
     mkdir -p ${APP_DIR} && \

ENV.tmpl

@@ -1,9 +1,10 @@
 # copy to ENV and adjust values
 
 export DB_HOST="172.16.10.18"
-export DB_USER="hausverwaltung-ui"
+export DB_USER="authservice-ui"
 export DB_PASS="test123"
 export DB_NAME="authservice"
 
 # only required for decoding, on client side
 export JWT_SECRET='streng_geheim'
+export JWT_ISSUER='de.hottis.authservice'

asadduser.py

@@ -0,0 +1,59 @@
+#!/usr/bin/python
+
+import mariadb
+from pbkdf2 import crypt
+import argparse
+import os
+
+
+parser = argparse.ArgumentParser(description='asadduser')
+parser.add_argument('--user', '-u',
+                    help='Login', 
+                    required=True)
+parser.add_argument('--password', '-p',
+                    help='Password', 
+                    required=True)
+parser.add_argument('--application', '-a',
+                    help='Application', 
+                    required=True)
+
+args = parser.parse_args()
+user = args.user
+password = args.password
+application = args.application
+
+
+DB_USER = os.environ["DB_USER"]
+DB_PASS = os.environ["DB_PASS"]
+DB_HOST = os.environ["DB_HOST"]
+DB_NAME = os.environ["DB_NAME"]
+
+pwhash = crypt(password, iterations=100000)
+
+conn = None
+cur = None
+try:
+    conn = mariadb.connect(user = DB_USER, password = DB_PASS,
+                            host = DB_HOST, database = DB_NAME)
+    conn.autocommit = False
+
+    cur = conn.cursor()
+    cur.execute("""
+INSERT INTO users (login, pwhash)
+  VALUES(?, ?)
+""", [user, pwhash])
+    cur.execute("""
+INSERT INTO  user_applications_mapping (application, user)
+  VALUES(
+      (SELECT id FROM applications WHERE name = ?),
+      (SELECT id FROM users WHERE login = ?)
+  )
+""", [application, user])
+    conn.commit()
+finally:
+    if cur:
+        cur.close()
+    if conn:
+        conn.rollback()
+        conn.close()
+

auth.py

@@ -5,22 +5,41 @@ import werkzeug
 import os
 import mariadb
 from collections import namedtuple
-
+from pbkdf2 import crypt
 
 DB_USER = os.environ["DB_USER"]
 DB_PASS = os.environ["DB_PASS"]
 DB_HOST = os.environ["DB_HOST"]
 DB_NAME = os.environ["DB_NAME"]
 
-
+JWT_ISSUER = os.environ["JWT_ISSUER"]
-class NoUserException(Exception): pass
-class ManyUsersException(Exception): pass
-
-UserEntry = namedtuple('UserEntry', ['id', 'login', 'issuer', 'secret', 'expiry', 'claims'])
 
 
 
-def getUserEntryFromDB(login: str, password: str) -> UserEntry:
+
+
+class NoUserException(Exception): 
+    pass
+
+class ManyUsersException(Exception): 
+    pass
+
+class PasswordMismatchException(Exception): 
+    pass
+
+
+UserEntry = namedtuple('UserEntry', ['id', 'login', 'expiry', 'claims'])
+
+JWT_PRIV_KEY = ""
+with open('/opt/app/config/authservice.key', 'r') as f:
+    JWT_PRIV_KEY = f.read()
+
+JWT_PUB_KEY = ""
+with open('/opt/app/config/authservice.pub', 'r') as f:
+    JWT_PUB_KEY = f.read()
+
+
+def getUserEntryFromDB(application: str, login: str):
     conn = None
     cur = None
     try:
@@ -29,9 +48,9 @@ def getUserEntryFromDB(login: str, password: str) -> UserEntry:
         conn.autocommit = False
 
         cur = conn.cursor(dictionary=True)
-        # print("DEBUG: getUserEntryFromDB: login: <{}>, password: <{}>".format(login, password))
+        cur.execute("SELECT id, pwhash, expiry FROM user_application" +
-        cur.execute("SELECT id, issuer, secret, expiry FROM user_and_issuer WHERE login = ? AND password = ?", 
+                    "  WHERE application = ? AND login = ?", 
-                    [login, password])
+                    [application, login])
         resObj = cur.next()
         print("DEBUG: getUserEntryFromDB: resObj: {}".format(resObj))
         if not resObj:
@@ -47,7 +66,7 @@ def getUserEntryFromDB(login: str, password: str) -> UserEntry:
         for claimObj in cur:
             print("DEBUG: getUserEntryFromDB: add claim {} -> {}".format(claimObj["key"], claimObj["value"]))
             if claimObj["key"] in claims:
-                if isinstance(claimObj["key"], list):
+                if isinstance(claims[claimObj["key"]], list):
                     claims[claimObj["key"]].append(claimObj["value"])
                 else:
                     claims[claimObj["key"]] = [ claims[claimObj["key"]] ]
@@ -55,11 +74,9 @@ def getUserEntryFromDB(login: str, password: str) -> UserEntry:
             else:
                 claims[claimObj["key"]] = claimObj["value"]
                 
-        userEntry = UserEntry(id=userId, login=login, secret=resObj["secret"], 
+        userEntry = UserEntry(id=userId, login=login, expiry=resObj["expiry"], claims=claims)
-                              issuer=resObj["issuer"], expiry=resObj["expiry"], 
-                              claims=claims)
 
-        return userEntry
+        return userEntry, resObj["pwhash"]
     except mariadb.Error as err:
         raise Exception("Error when connecting to database: {}".format(err))
     finally:
@@ -69,39 +86,48 @@ def getUserEntryFromDB(login: str, password: str) -> UserEntry:
             conn.rollback()
             conn.close()
 
-
+def getUserEntry(application, login, password):
-def getUserEntry(login: str, password: str) -> UserEntry:
+    userEntry, pwhash = getUserEntryFromDB(application, login)
-    return getUserEntryFromDB(login, password)
+    if pwhash != crypt(password, pwhash):
-
+        raise PasswordMismatchException()
+    return userEntry
 
 def generateToken(**args):
     try:
         body = args["body"]
+        application = body["application"]
         login = body["login"]
         password = body["password"]
-        userEntry = getUserEntryFromDB(login, password)
+    
+        userEntry = getUserEntry(application, login, password)
     
         timestamp = int(time.time())
         payload = {
-            "iss": userEntry.issuer,
+            "iss": JWT_ISSUER,
             "iat": int(timestamp),
             "exp": int(timestamp + userEntry.expiry),
             "sub": str(userEntry.id)
         }
         for claim in userEntry.claims.items():
             # print("DEBUG: generateToken: add claim {} -> {}".format(claim[0], claim[1]))
-            payload["x-{}".format(claim[0])] = claim[1]
+            payload[claim[0]] = claim[1]
 
-        return jwt.encode(payload, userEntry.secret)
+        return jwt.encode(payload, JWT_PRIV_KEY, algorithm='RS256')
     except NoUserException:
-        print("ERROR: generateToken: no user found, login or password wrong")
+        print("ERROR: generateToken: no user found, login or application wrong")
         raise werkzeug.exceptions.Unauthorized()
     except ManyUsersException:
         print("ERROR: generateToken: too many users found")
         raise werkzeug.exceptions.Unauthorized()
+    except PasswordMismatchException:
+        print("ERROR: generateToken: wrong password")
+        raise werkzeug.exceptions.Unauthorized()
     except KeyError:
-        print("ERROR: generateToken: login or password missing")
+        print("ERROR: generateToken: application, login or password missing")
         raise werkzeug.exceptions.Unauthorized()
     except Exception as e:
         print("ERROR: generateToken: unspecific exception: {}".format(str(e)))
         raise werkzeug.exceptions.Unauthorized()
+
+def getPubKey():
+    return JWT_PUB_KEY

initial-schema.sql

@@ -1,45 +1,22 @@
-CREATE TABLE `issuers` (
+CREATE DATABASE `authservice`;
+USE `authservice`;
+
+CREATE TABLE `applications` (
     `id` int(10) unsigned NOT NULL AUTO_INCREMENT,
     `name` varchar(128) NOT NULL,
-    `secret` varchar(128) NOT NULL,
-    `max_expiry` int(10) NOT NULL,
     CONSTRAINT PRIMARY KEY (`id`),
-    CONSTRAINT UNIQUE KEY `uk_issuers_name` (`name`)
+    CONSTRAINT UNIQUE KEY `uk_applications_name` (`name`)
 ) ENGINE=InnoDB;
 
-ALTER TABLE `issuers`
-  MODIFY COLUMN `max_expiry` int(10) unsigned NOT NULL;
-
 CREATE TABLE `users` (
-  `id` int(10) unsigned NOT NULL AUTO_INCREMENT,
+    `id` int(10) unsigned NOT NULL AUTO_INCREMENT,
-  `login` varchar(64) NOT NULL,
+    `login` varchar(64) NOT NULL,
-  `password` varchar(64) NOT NULL,
+    `pwhash` varchar(64) NOT NULL,
-  CONSTRAINT PRIMARY KEY (`id`),
+    `expiry` int(10) unsigned NOT NULL DEFAULT 600,
-  CONSTRAINT UNIQUE KEY `uk_users_login` (`login`)
+    CONSTRAINT PRIMARY KEY (`id`),
+    CONSTRAINT UNIQUE KEY `uk_users_login` (`login`)
 ) ENGINE=InnoDB;
 
-ALTER TABLE `users`
-  ADD COLUMN issuer int(10) unsigned;
-  
-ALTER TABLE `users`
-  MODIFY COLUMN issuer int(10) unsigned NOT NULL;
-
-ALTER TABLE `users`
-  ADD CONSTRAINT FOREIGN KEY `fk_users_issuer` (`issuer`)
-    REFERENCES `issuers` (`id`);
-
-ALTER TABLE `users`
-  DROP CONSTRAINT `uk_users_login`;
-
-ALTER TABLE `users`
-  ADD CONSTRAINT UNIQUE KEY `uk_users_login_issuer` (`login`, `issuer`);
-
-ALTER TABLE `users`
-  ADD COLUMN expiry int(10) unsigned;
-  
-ALTER TABLE `users`
-  MODIFY COLUMN expiry int(10) unsigned NOT NULL;
-
 CREATE TABLE `claims` (
     `id` int(10) unsigned NOT NULL AUTO_INCREMENT,
     `key` varchar(64) NOT NULL,
@@ -58,6 +35,16 @@ CREATE TABLE `user_claims_mapping` (
         REFERENCES `claims`(`id`)
 ) ENGINE=InnoDB;
 
+CREATE TABLE `user_applications_mapping` (
+    `user` int(10) unsigned NOT NULL,
+    `application` int(10) unsigned NOT NULL,
+    CONSTRAINT UNIQUE KEY `uk_user_applications_mapping` (`user`, `application` ),
+    CONSTRAINT FOREIGN KEY `fk_user_applications_mapping_user` (`user`)
+        REFERENCES `users`(`id`),
+    CONSTRAINT FOREIGN KEY `fk_user_applications_mapping_application` (`application`)
+        REFERENCES `applications`(`id`)
+) ENGINE=InnoDB;
+
 CREATE OR REPLACE VIEW claims_for_user AS
     SELECT u.id AS user, 
            c.`key` AS `key`, 
@@ -68,14 +55,57 @@ CREATE OR REPLACE VIEW claims_for_user AS
         WHERE m.user = u.id AND
               m.claim = c.id;
 
-CREATE OR REPLACE VIEW user_and_issuer AS   
+CREATE OR REPLACE VIEW user_application AS   
     SELECT u.login AS login,
-           u.password AS password,
+           u.pwhash AS pwhash,
            u.id AS id,
-           i.name AS issuer,
+           u.expiry AS expiry,
-           i.secret AS secret,
+           a.name as application
-           least(u.expiry, i.max_expiry) AS expiry
         FROM users u,
-             issuers i
+             applications a,
-        WHERE u.issuer = i.id;
+             user_applications_mapping m
+        WHERE u.id = m.user AND
+              a.id = m.application;
+
+
+CREATE USER 'authservice-ui'@'%' IDENTIFIED BY 'test123';
+GRANT SELECT ON `user_application` TO 'authservice-ui'@'%';
+GRANT SELECT ON `claims_for_user` TO 'authservice-ui'@'%';
+
+CREATE USER 'authservice-cli'@'%' IDENTIFIED BY 'test123';
+GRANT INSERT ON `users` TO 'authservice-cli'@'%';
+GRANT INSERT ON `user_applications_mapping` TO 'authservice-cli'@'%';
+
+FLUSH PRIVILEGES;
+
+INSERT INTO `applications` (`name`) VALUES ('hv');
+
+INSERT INTO `claims` (`key`, `value`) VALUES ('accesslevel', 'r');
+INSERT INTO `claims` (`key`, `value`) VALUES ('accesslevel', 'rw');
+
+-- password is 'test123'
+INSERT INTO `users` (`login`, `pwhash`) VALUES ('wn', '$p5k2$186a0$dJXL0AjF$0HualDF92nyilDXPgSbaUn/UpFzSrpPx');
+INSERT INTO `user_applications_mapping` (`user`, `application`)
+  VALUES(
+      (SELECT `id` FROM `users` WHERE `login` = 'wn'),
+      (SELECT `id` FROM `applications` WHERE `name` = 'hv')
+  );
+INSERT INTO `user_claims_mapping` (`user`, `claim`)
+  VALUES(
+      (SELECT `id` FROM `users` WHERE `login` = 'wn'),
+      (SELECT `id` FROM `claims` WHERE `key` = 'accesslevel' AND `value` = 'rw')
+  );
+
+-- password is 'geheim'
+INSERT INTO `users` (`login`, `pwhash`) VALUES ('gregor', '$p5k2$186a0$Tcwps8Ar$TsypGB.y1dCB9pWOPz2X2SsxYqrTn3Fv');
+INSERT INTO `user_applications_mapping` (`user`, `application`)
+  VALUES(
+      (SELECT `id` FROM `users` WHERE `login` = 'gregor'),
+      (SELECT `id` FROM `applications` WHERE `name` = 'hv')
+  );
+INSERT INTO `user_claims_mapping` (`user`, `claim`)
+  VALUES(
+      (SELECT `id` FROM `users` WHERE `login` = 'gregor'),
+      (SELECT `id` FROM `claims` WHERE `key` = 'accesslevel' AND `value` = 'rw')
+  );
 

openapi.yaml

@@ -35,6 +35,19 @@ paths:
                 type: string
       security:
       - jwt: ['secret']
+  /pubkey:
+    get:
+      tags: [ "JWT" ]
+      summary: Get the public key of this issuer
+      operationId: auth.getPubKey
+      responses:
+        '200':
+          description: public key
+          content:
+            'text/plain':
+              schema:
+                type: string
+
 
 components:
   securitySchemes:
@@ -45,9 +58,11 @@ components:
       x-bearerInfoFunc: test.decodeToken
   schemas:
     User:
-      description: Login/Password tuple
+      description: Application/Login/Password tuple
       type: object
       properties:
+        application:
+          type: string
         login: 
           type: string
         password: 

readme.md

@@ -0,0 +1,13 @@
+Generate the RSA key pair using:
+
+
+Private key (keep it secret!):
+
+   openssl genrsa -out authservice.key 2048
+
+
+Extract the public key (publish it):
+
+   openssl rsa -in authservice.pem -outform PEM -pubout -out authservice.pub
+
+

server.py

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