added option to disable login

docker-compose.yml

@@ -16,7 +16,8 @@ services:
       - recaptcha_private= #Please enter here your private Key for google recaptcha
       - recaptcha_public= #Please enter here your public Key for google recaptcha
       - host=0.0.0.0 #With this variable you can set the access ip range. 127.0.0.1 means you can only access it from the local network and 0.0.0.0 means everyone can access it.
-      - GITHUB_CLIENT_ID= #You have to set these four variables, if not the shorter will not run. To get the github keys visit https://github.com/settings/developers and register a new oauth application. The callback path is /user/github-callback
+      - login=1 #set this to 0 if you want to disable the oauth login. If you do so, you also don't have to fill in the oauth credentials below. 
+      - GITHUB_CLIENT_ID= #To get the github keys visit https://github.com/settings/developers and register a new oauth application. The callback path is /user/github-callback
       - GITHUB_CLIENT_SECRET= 
       - GOOGLE_CLIENT_ID=
       - GOOGLE_CLIENT_SECRET=

home.py

 from flask import render_template, abort
-def home(request, builddate, version, domain_prepared, recaptchaPublicKey, showDomainSelect, cookieNotice, domain_to_index, s):
+def home(request, builddate, version, domain_prepared, recaptchaPublicKey, showDomainSelect, cookieNotice, domain_to_index, s, loginEnabled):
     try:
         loginbar = "Hello " + s.loads(request.cookies.get('username')) + ' (<a href="/user/links" style="color:white">your links</a>, <a href="/user/logout" style="color:white">logout</a>)'
     except:
         loginbar = '<a href="#" onClick="showLogin()" style="color:white">login</a>'
 
     try:
-        return render_template('home.html', builddate=builddate, version=version, domain=domain_prepared, recaptchaPublicKey=recaptchaPublicKey, showDomainSelect=showDomainSelect, loginbar=loginbar, cookieNotice=cookieNotice ,domain_prefilled=domain_to_index[request.headers["host"]]) #return the default site to create a new shorten link
+        return render_template('home.html', builddate=builddate, version=version, domain=domain_prepared, recaptchaPublicKey=recaptchaPublicKey, showDomainSelect=showDomainSelect, loginbar=loginbar, cookieNotice=cookieNotice ,domain_prefilled=domain_to_index[request.headers["host"]], loginEnabled=loginEnabled) #return the default site to create a new shorten link
     except:
         abort(500)
\ No newline at end of file

main.py

 #!/usr/bin/env python3
 #Import os Libraries
 from waitress import serve #Used as webserver (Production)
-from flask import Flask, request, redirect, make_response #Used to prepare the dynamic pages
+from flask import Flask, request, redirect, make_response, abort #Used to prepare the dynamic pages
 from os import environ #Used for getting the enviorement variables
 from itsdangerous import URLSafeSerializer #used for signing the cookies
 from random import choice#used for signing the cookies
@@ -77,14 +77,21 @@ try:
 except:
     host="127.0.0.1"
 
-try: #Try to get the oauth keys, if it fails, abort and print a message to console
-    GITHUB_CLIENT_ID = environ['GITHUB_CLIENT_ID']
-    GITHUB_CLIENT_SECRET = environ['GITHUB_CLIENT_SECRET']
-    GOOGLE_CLIENT_ID = environ['GOOGLE_CLIENT_ID']
-    GOOGLE_CLIENT_SECRET = environ['GOOGLE_CLIENT_SECRET']
+try:
+    if(environ["login"] == "1"): loginEnabled = True
+    else: loginEnabled = False
 except:
-    print("please set the oauth keys and run again.")
-    exit()
+    loginEnabled = False
+
+if(loginEnabled):
+    try: #Try to get the oauth keys, if it fails, abort and print a message to console
+        GITHUB_CLIENT_ID = environ['GITHUB_CLIENT_ID']
+        GITHUB_CLIENT_SECRET = environ['GITHUB_CLIENT_SECRET']
+        GOOGLE_CLIENT_ID = environ['GOOGLE_CLIENT_ID']
+        GOOGLE_CLIENT_SECRET = environ['GOOGLE_CLIENT_SECRET']
+    except:
+        print("please set the oauth keys and run again.")
+        exit()
 
 try: #check, if admin wants to show a cookie notice to the user. 
     if(environ["cookieNotice"] == 1):
@@ -122,7 +129,7 @@ else:
 
 @app.route('/', methods=['GET'])
 def home_get():
-    return home(request, builddate, version, domain_prepared, recaptchaPublicKey, showDomainSelect, cookieNotice, domain_to_index, s)
+    return home(request, builddate, version, domain_prepared, recaptchaPublicKey, showDomainSelect, cookieNotice, domain_to_index, s, loginEnabled)
 
 @app.route('/', methods=['POST']) #This function is used to create a new url
 def home_post():
@@ -139,16 +146,18 @@ def redirect_short_url(short_url):
 
 @app.route('/user/login')
 def loginPage():
-    return login(request, GITHUB_CLIENT_ID, cookieNotice, GOOGLE_CLIENT_ID, url_scheme, domain)
+    if(loginEnabled): return login(request, GITHUB_CLIENT_ID, cookieNotice, GOOGLE_CLIENT_ID, url_scheme, domain)
+    else: abort(404)
 
 @app.route("/user/google-callback")
 def authorizeGoogle():
-    return googleCallback(request, GOOGLE_CLIENT_ID, GOOGLE_CLIENT_SECRET, url_scheme, domain, s)
-
+    if(loginEnabled): return googleCallback(request, GOOGLE_CLIENT_ID, GOOGLE_CLIENT_SECRET, url_scheme, domain, s)
+    else: abort(404)
 
 @app.route('/user/github-callback') #Github redirects to this link after the user authenticated. Then we use the Token we get from github and request via the github api the username and the userid
 def authorizeGithub():
-    return githubCallback(request, GITHUB_CLIENT_SECRET, GITHUB_CLIENT_ID, s)
+    if(loginEnabled): return githubCallback(request, GITHUB_CLIENT_SECRET, GITHUB_CLIENT_ID, s)
+    else: abort(404)
     
 @app.route('/user/logout')
 def logout():
@@ -163,11 +172,13 @@ def redirectOwnLinks():
 
 @app.route('/user/links<pageNumber>')#This function gives the user the posibility to see and delete his links
 def ownLinks(pageNumber):
-    return userProfile(request, cookieNotice, s, pageNumber, url_scheme)
+    if(loginEnabled): return userProfile(request, cookieNotice, s, pageNumber, url_scheme)
+    else: abort(404)
 
 @app.route('/user/delete') #This function is called if a user deletes an entrie
 def delete():
-    return deleteLink(request, s)
+    if(loginEnabled): return deleteLink(request, s)
+    else: abort(404)
 
 @app.route('/user/makeqr', methods=['POST'])
 def makeQrCode():

templates/home.html

@@ -19,7 +19,9 @@
       </head>
 
    <body>
+      {% if loginEnabled %}
          <div id="loginbar">{{loginbar | safe}}</div>
+      {% endif %}
       <div class="login-page">
          <div class="form">
             {% if not short_url %}