Improved error handling and Kiwi redirect

Signed-off-by: Georg <georg@lysergic.dev>

flaskapp.py

@@ -11,14 +11,15 @@ app.config['SECRET_KEY'] = '$secret' #remove later
 def hello():
     return render_template('home.html')
 
+#@app.route('/kiwi')
+#def kiwi():
+#    return redirect("https://liberta.casa/kiwi/")
 @app.route('/kiwi')
-def kiwi():
+def kiwinick():
-    return redirect("https://liberta.casa/kiwi/")
-@app.route('/kiwi/')
-def kiwinick(nick, show_password_box):
     nick = request.args.get('nick', None)
-    show_password_box = requests.args.get('show_password_box', None)
+    show_password_box = request.args.get('show_password_box', None)
-    return redirect("https://liberta.casa/kiwi/")
+    redirect_url = 'https://liberta.casa/kiwi/'+'?nick='+nick+'&show_password_box'+'='+show_password_box
+    return redirect(redirect_url)
 
 @app.route('/register', methods=['GET', 'POST'])
 def register():
@@ -30,14 +31,16 @@ def register():
         password = request.form.get('password')
 #        email = request.form.get('email') add password arg to ircregisterfunction
         response = ircregister(username, password, email)
-        if response == "server failure":
+        if response == "433":
-            flash("Server Unavailable")
+            flash("IRC username already taken. Please select a different username")
-        elif response == "433":
+        elif response == "409":
-            flash("Username already taken. Please select a different username")
+            flash("User already exists.")
         elif response == "success":
             return redirect(url_for('kiwinick', nick=username, show_password_box='true'))
-        elif response == "failure":
+        elif response == "invalidemail":
-            flash("Failure! Please try after some time or use NickServ.")
+            flash("Is that a valid email address?")
+        elif response == "ssoerr":
+            flash("Sorry, we messed up. Please contact an administrator.")
 
     return render_template('register.html', title='Register', form=form)
 

irc_register.py

@@ -19,10 +19,10 @@ def ircregister(username, password, email):
             e.pop(s.send(e.pending()))
 
     # registering the connection to the server
-
     _send(irctokens.build("USER", [username, "0", "*", username]))
     _send(irctokens.build("NICK", [username]))
 
+    # define Keycloak related variables
     server = 'http://192.168.0.115:8880'
     realm = 'devel'
     tokenurl = 'http://localhost/kctoken'
@@ -32,11 +32,10 @@ def ircregister(username, password, email):
     lastname = 'Bar'
 
     # go through the cases
-
     while True:
         lines = d.push(s.recv(1024))
 
-        if lines == None:    #if nothing is received from server
+        if lines == None:    # if nothing is received from server
             return "server error"
             break
 
@@ -48,8 +47,9 @@ def ircregister(username, password, email):
 
             elif line.command == "005": # when 005 is received pass the nickserv register command command
                  _send(irctokens.build("PRIVMSG", ["NickServ", f"REGISTER {password}"]))
-            if line.command == 'NOTICE' and line.params == [username, f"Account created"]:
+            if line.command == 'NOTICE' and line.params == [username, f"Account created"]: # the IRC registration succeeded
                 _send(irctokens.build("QUIT"))
+                # proceed with connecting to Keycloak
                 try:
                     tokendl = requests.get(tokenurl)
                     tokendata = tokendl.json()
@@ -57,6 +57,7 @@ def ircregister(username, password, email):
                     url = server + '/auth/admin/realms/' + realm + '/users'
                 except:
                     print("ERROR: Keycloak token could not be installed.")
+                # register the user with Keycloak
                 if re.match(r"[^@]+@[^@]+\.[^@]+", email):
                     payload = {
                     "firstName": firstname,
@@ -82,25 +83,36 @@ def ircregister(username, password, email):
                     except:
                         print("Keycloak: No or invalid response JSON. This it not an error.")
                     status = response.status_code
-                    if status == 201:
+                    if status == 201: # success
                         print(" SSO User " + username + " created.")
+                        return "success" # ok, done
                     if status == 400:
                         print("ERROR: Keycloak indicated that the request is invalid.")
-                    if status == 401:
+                        return "ssoerr"
+                    if status == 401: # unauthorized, usually an issue with the token
                         print("ERROR: Fix your Keycloak API credentials and/or client roles, doh.")
+                        return "ssoerr"
                     if status == 403:
                         print("ERROR: Keycloak indicated that the authorization provided is not enough to access the resource.")
-                    if status == 404:
+                        return "ssoerr"
+                    if status == 404: # not found, usually an issue with the URL
                         print("ERROR: Keycloak indicated that the requested resource does not exist.")
-                    if status == 409:
+                        return "ssoerr"
+                    if status == 409: # likely already occupied username or email address
                         print("ERROR: Keycloak indicated that the resource already exists or \"some other coonflict when processing the request\" occured.")
+                        return "ssoerr"
+                        return "409"
+                        #to-do: parse response JSON to inform the user whether it's the username OR the email address causing the culprit
                     if status == 415:
                         print("ERROR: Keycloak indicated that the requested media type is not supported.")
+                        return "ssoerr"
                     if status == 500:
                         print("ERROR: Keycloak indicated that the server could not fullfill the request due to \"some unexpected error \".")
-                else:
+                        return "ssoerr"
+                else: # email address doesn't look like an email address
                     print('Invalid email address supplied.')
+                    return "invalidemail"
 
-                return "success"
+                #return "success" # ok, done
 
 # register("hello", "test")