not working, initial attempts

rowers/urls.py

@@ -741,6 +741,8 @@ urlpatterns = [
             views.rower_prefs_view, name='rower_prefs_view'),
     re_path(r'^me/prefs/user/(?P<userid>\d+)/$',
             views.rower_simpleprefs_view, name='rower_simpleprefs_view'),
+    re_path(r'^me/fakturoidauthorize/$', views.rower_fakturoid_auth,
+            name='rower_fakturoid_auth'),
     re_path(r'^me/rojaboauthorize/$', views.rower_rojabo_authorize,
             name='rower_rojabo_authorize'),
     re_path(r'^me/polarauthorize/$', views.rower_polar_authorize,

rowers/views/paymentviews.py

@@ -4,10 +4,68 @@ from django.contrib.sites.shortcuts import get_current_site
 from django.utils.http import urlsafe_base64_encode, urlsafe_base64_decode
 from django.contrib.auth.backends import ModelBackend
 from rowers.views.statements import *
+from rowsandall_app.settings import FAKTUROID_CLIENT_ID, FAKTUROID_CLIENT_SECRET, FAKTUROID_REDIRECT_URI, FAKTUROID_EMAIL, FAKTUROID_APP_NAME
 from django.core.mail import EmailMessage
+import base64
+from oauthlib.oauth2 import BackendApplicationClient
+from requests_oauthlib import OAuth2Session
+from requests.auth import HTTPBasicAuth
 
 from rowers import credits
 
+@login_required()
+def rower_fakturoid_auth(request):
+    state=str(uuid4())
+    
+    params = {
+        "client_id":FAKTUROID_CLIENT_ID,
+        "response_type": "code",
+        "redirect_uri": FAKTUROID_REDIRECT_URI,
+        "state": state,
+    }
+
+    url = "https://app.fakturoid.cz/api/v3/oauth/?"+urllib.parse.urlencode(params)
+
+    return HttpResponseRedirect(url)
+
+@login_required()
+def rower_process_fakturoidcallback(request):
+    code = request.GET['code']
+    post_data = {
+        'code': code,
+        'grant_type': 'authorization_code',
+        'redirect_uri': FAKTUROID_REDIRECT_URI,
+        "client_id": FAKTUROID_CLIENT_ID,
+    }
+
+    auth_string = f"{FAKTUROID_CLIENT_ID}:{FAKTUROID_CLIENT_SECRET}"
+    base64_bytes = base64.b64encode(auth_string.encode('utf-8'))
+    base64_string = base64_bytes.decode('utf-8')
+
+    authorizationstring = f"Basic {base64_string}"
+
+    headers = {
+        'User-Agent': f"{FAKTUROID_APP_NAME} ({FAKTUROID_EMAIL})",
+        'Content-Type': 'application/json',
+        'Accept': 'application/json',
+        'Authorization': authorizationstring,
+               }
+
+    base_url = 'https://app.fakturoid.cz/api/v3/oauth/token'
+
+    auth = HTTPBasicAuth(FAKTUROID_CLIENT_ID, FAKTUROID_CLIENT_SECRET)
+    client = BackendApplicationClient(client_id=FAKTUROID_CLIENT_ID)
+
+    oauth = OAuth2Session(client=client)
+    token = oauth.fetch_token(token_url=base_url, auth=auth)
+
+    print(headers)
+    print(post_data)
+    print(base_url)
+    
+    print(response)
+    print(response.text)
+    return HttpResponse('succes')
 
 @csrf_exempt
 def braintree_webhook_view(request):

rowsandall_app/settings.py

@@ -38,6 +38,7 @@ DEBUG = False
 TESTING = False
 
 ALLOWED_HOSTS = CFG['allowed_hosts']
+CSRF_TRUSTED_ORIGINS = CFG['csrf_origins']
 
 # OAUTH2_PROVIDER_ACCESS_TOKEN_MODEL = 'oauth2_provider.AccessToken'
 # OAUTH2_PROVIDER_APPLICATION_MODEL = 'oauth2_provider.Application'
@@ -597,6 +598,26 @@ try:
 except KeyError:  # pragma: no cover
     FAKTUROID_SLUG = ''
 
+try:
+    FAKTUROID_REDIRECT_URI = CFG['fakturoid_redirect_uri']
+except KeyError:
+    FAKTUROID_REDIRECT_URI = ''
+
+try:
+    FAKTUROID_CLIENT_ID = CFG['fakturoid_client_id']
+except KeyError:
+    FAKTUROID_CLIENT_ID = ''
+
+try:
+    FAKTUROID_APP_NAME = CFG['fakturoid_app_name']
+except KeyError:
+    FAKTUROID_APP_NAME = ''
+
+try:
+    FAKTUROID_CLIENT_SECRET = CFG['fakturoid_client_secret']
+except KeyError:
+    FAKTUROID_CLIENT_SECRET = ''
+
 # ID obfuscation
 try:
     OPAQUE_SECRET_KEY = CFG['opaque_secret_key']

rowsandall_app/urls.py

@@ -93,6 +93,7 @@ urlpatterns += [
     re_path(r'^tp\_callback', rowersviews.rower_process_tpcallback),
     re_path(r'^rp3\_callback', rowersviews.rower_process_rp3callback),
     re_path(r'^twitter\_callback', rowersviews.rower_process_twittercallback),
+    re_path(r'^fakturoid\_callback', rowersviews.rower_process_fakturoidcallback),
     re_path(r'^i18n/', include('django.conf.urls.i18n')),
     re_path(r'^tz_detect/', include('tz_detect.urls')),
     re_path(r'^logo/', logoview),