From 57eaa85e0f91a2e5c5b1ab912f8657ce1ec363e9 Mon Sep 17 00:00:00 2001
From: Tom Hubrecht <tom.hubrecht@dgnum.eu>
Date: Tue, 18 Feb 2025 21:57:02 +0100
Subject: [PATCH] feat(shared): Add a view for exporting members to a
 mailing-list

---
 bds/urls.py                  |  7 ++++++
 gestioasso/settings/local.py |  3 +++
 gestioasso/settings_bds.py   |  3 +++
 gestioasso/settings_cof.py   |  3 +++
 gestioncof/urls.py           | 14 +++++++++++
 shared/views.py              | 45 ++++++++++++++++++++++++++++++++++--
 6 files changed, 73 insertions(+), 2 deletions(-)

diff --git a/bds/urls.py b/bds/urls.py
index 95065773..68d780df 100644
--- a/bds/urls.py
+++ b/bds/urls.py
@@ -1,6 +1,7 @@
 from django.urls import path
 
 from bds import views
+from shared.views import SympaListView
 
 app_name = "bds"
 urlpatterns = [
@@ -21,4 +22,10 @@ urlpatterns = [
         name="members.expired",
     ),
     path("members/reset", views.ResetMembershipView.as_view(), name="members.reset"),
+    # Sympa export view
+    path(
+        "sympa/members/",
+        SympaListView.as_view(filters={"bds__is_member": True}),
+        name="export.sympa",
+    ),
 ]
diff --git a/gestioasso/settings/local.py b/gestioasso/settings/local.py
index 2cba6a10..c6a22e64 100644
--- a/gestioasso/settings/local.py
+++ b/gestioasso/settings/local.py
@@ -27,6 +27,9 @@ ALLOWED_HOSTS = []
 DEBUG = True
 EMAIL_BACKEND = "django.core.mail.backends.console.EmailBackend"
 
+SYMPA_PASSWORD = b"sympa"
+SYMPA_USERNAME = b"sympa"
+
 if TESTING:
     PASSWORD_HASHERS = ["django.contrib.auth.hashers.MD5PasswordHasher"]
 
diff --git a/gestioasso/settings_bds.py b/gestioasso/settings_bds.py
index 231ae101..e640b222 100644
--- a/gestioasso/settings_bds.py
+++ b/gestioasso/settings_bds.py
@@ -26,6 +26,9 @@ EMAIL_HOST = credentials.get("EMAIL_HOST")
 
 DEFAULT_AUTO_FIELD = "django.db.models.AutoField"
 
+SYMPA_PASSWORD = credentials["SYMPA_PASSWORD"].encode()
+SYMPA_USERNAME = credentials["SYMPA_USERNAME"].encode()
+
 
 ##
 # Installed Apps configuration
diff --git a/gestioasso/settings_cof.py b/gestioasso/settings_cof.py
index 6bccefc2..893aaec4 100644
--- a/gestioasso/settings_cof.py
+++ b/gestioasso/settings_cof.py
@@ -30,6 +30,9 @@ LDAP_SERVER_URL = credentials.get("LDAP_SERVER_URL")
 
 DEFAULT_AUTO_FIELD = "django.db.models.AutoField"
 
+SYMPA_PASSWORD = credentials["SYMPA_PASSWORD"].encode()
+SYMPA_USERNAME = credentials["SYMPA_USERNAME"].encode()
+
 
 ##
 # Installed Apps configuration
diff --git a/gestioncof/urls.py b/gestioncof/urls.py
index d0ba75c7..624f8e22 100644
--- a/gestioncof/urls.py
+++ b/gestioncof/urls.py
@@ -4,6 +4,16 @@ from django.views.generic.base import TemplateView
 from django_cas_ng import views as django_cas_views
 
 from gestioncof import csv_views, views
+from shared.views import SympaListView
+
+sympa_patterns = [
+    path(
+        f"{mailing}/",
+        SympaListView.as_view(filters={f"profile__mailing_{mailing}": True}),
+        name=f"sympa.{mailing}",
+    )
+    for mailing in ["bda", "bda_revente", "cof", "unernestaparis"]
+]
 
 export_patterns = [
     path("members", views.export_members, name="export.members"),
@@ -162,4 +172,8 @@ urlpatterns = [
     # Clubs
     # -----
     path("clubs/", include(clubs_patterns)),
+    # -----
+    # Sympa export
+    # -----
+    path("sympa/", include(sympa_patterns)),
 ]
diff --git a/shared/views.py b/shared/views.py
index a1ffb185..fbff4ec0 100644
--- a/shared/views.py
+++ b/shared/views.py
@@ -1,12 +1,53 @@
+import base64
 from collections import namedtuple
+from typing import Any
 
 from dal import autocomplete
+from django.conf import settings
+from django.contrib.auth import get_user_model
 from django.core.exceptions import ImproperlyConfigured
-from django.http import Http404
-from django.views.generic import TemplateView
+from django.http import Http404, HttpResponse
+from django.views.generic import TemplateView, View
 
 from shared.autocomplete import ModelSearch
 
+User = get_user_model()
+
+
+class SympaListView(View):
+    realm = "sympa"
+
+    username = settings.SYMPA_USERNAME
+    password = settings.SYMPA_PASSWORD
+
+    filters: dict[str, Any] = {}
+
+    def dispatch(self, request, *args, **kwargs):
+        if "HTTP_AUTHORIZATION" in request.META:
+            auth = request.META["HTTP_AUTHORIZATION"].split()
+
+            if len(auth) == 2 and auth[0].lower() == "basic":
+                name, passwd = base64.b64decode(auth[1]).split(b":")
+
+                if name == self.username and passwd == self.password:
+                    return self.render_to_response(request, *args, **kwargs)
+
+        return HttpResponse(
+            status=401, headers={"WWW-Authenticate": f'Basic realm="{self.realm}"'}
+        )
+
+    def render_to_response(self, request, *args, **kwargs):
+        """
+        Renders a list of emails in a text response.
+        """
+
+        users = User.objects.filter(**self.filters)
+
+        return HttpResponse(
+            b"\n".join(u.email.encode("utf-8") for u in users if u.email),
+            content_type="text/plain",
+        )
+
 
 class Select2QuerySetView(ModelSearch, autocomplete.Select2QuerySetView):
     """Compatibility layer between ModelSearch and Select2QuerySetView."""