Remplace la méthode obsolète request.is_ajax (préparation pour Django 4)

zds/forum/utils.py

@@ -10,7 +10,7 @@
 from django.utils.translation import gettext as _
 from zds.forum.models import Forum, Topic, Post
 from zds.member.views import get_client_ip
-from zds.utils.misc import contains_utf8mb4
+from zds.utils.misc import contains_utf8mb4, is_ajax
 from zds.utils.mixins import QuoteMixin
 from zds.utils.models import CommentVote, get_hat_from_request
 
@@ -141,7 +141,7 @@ def get(self, request, *args, **kwargs):
         if "cite" in request.GET:
             text = self.build_quote(request.GET.get("cite"), request.user)
 
-            if request.is_ajax():
+            if is_ajax(request):
                 return HttpResponse(json.dumps({"text": text}), content_type="application/json")
 
         form = self.create_forum(self.form_class, **{"text": text})
@@ -172,11 +172,11 @@ def get(self, request, *args, **kwargs):
     def post(self, request, *args, **kwargs):
         form = self.get_form(self.form_class)
         new_post = None
-        if not request.is_ajax():
+        if not is_ajax(request):
             new_post = self.object.last_message.pk != int(request.POST.get("last_post"))
 
         if "preview" in request.POST or new_post:
-            if request.is_ajax():
+            if is_ajax(request):
                 content = render(request, "misc/preview.part.html", {"text": request.POST.get("text")})
                 return StreamingHttpResponse(content)
             else:

zds/forum/views.py

@@ -28,6 +28,7 @@
 from zds.utils import old_slugify
 from zds.utils.context_processor import get_repository_url
 from zds.forum.utils import create_topic, send_post, CreatePostView
+from zds.utils.misc import is_ajax
 from zds.utils.mixins import FilterMixin
 from zds.utils.models import Alert, Tag, CommentVote
 from zds.utils.paginator import ZdSPagingListView
@@ -108,7 +109,7 @@ def post(self, request, *args, **kwargs):
             response["email"] = self.perform_follow_by_email(self.object, request.user)
 
         self.object.save()
-        if request.is_ajax():
+        if is_ajax(request):
             return HttpResponse(json.dumps(response), content_type="application/json")
         return redirect(f"{self.object.get_absolute_url()}?page={self.page}")
 
@@ -265,7 +266,7 @@ def post(self, request, *args, **kwargs):
         form = self.get_form(self.form_class)
 
         if "preview" in request.POST:
-            if request.is_ajax():
+            if is_ajax(request):
                 content = render(request, "misc/preview.part.html", {"text": request.POST["text"]})
                 return StreamingHttpResponse(content)
             else:
@@ -356,7 +357,7 @@ def post(self, request, *args, **kwargs):
             form = self.get_form(self.form_class)
 
             if "preview" in request.POST:
-                if request.is_ajax():
+                if is_ajax(request):
                     content = render(request, "misc/preview.part.html", {"text": request.POST["text"]})
                     return StreamingHttpResponse(content)
                 else:
@@ -391,7 +392,7 @@ def post(self, request, *args, **kwargs):
             response["requesting"], response["newCount"] = self.toogle_featured_request(request.user)
 
         self.object.save()
-        if request.is_ajax():
+        if is_ajax(request):
             return HttpResponse(json.dumps(response), content_type="application/json")
         return redirect(f"{self.object.get_absolute_url()}?page={self.page}")
 
@@ -511,7 +512,7 @@ def post(self, request, *args, **kwargs):
             response["email"] = self.perform_follow_by_email(self.object, request.user)
 
         self.object.save()
-        if request.is_ajax():
+        if is_ajax(request):
             return HttpResponse(json.dumps(response), content_type="application/json")
         return redirect(f"{self.object.get_absolute_url()}?page={self.page}")
 
@@ -635,7 +636,7 @@ def post(self, request, *args, **kwargs):
             form = self.get_form(self.form_class)
 
             if "preview" in request.POST:
-                if request.is_ajax():
+                if is_ajax(request):
                     content = render(request, "misc/preview.part.html", {"text": request.POST.get("text")})
                     return StreamingHttpResponse(content)
                 else:
@@ -717,7 +718,7 @@ def dispatch(self, request, *args, **kwargs):
     def post(self, request, *args, **kwargs):
         self.perform_useful(self.object)
 
-        if request.is_ajax():
+        if is_ajax(request):
             return HttpResponse(json.dumps(self.object.is_useful), content_type="application/json")
 
         return redirect(self.object.get_absolute_url())

zds/member/views/hats.py

@@ -15,6 +15,7 @@
 from zds.member.decorator import LoginRequiredMixin
 from zds.member.forms import HatRequestForm
 from zds.pages.models import GroupContact
+from zds.utils.misc import is_ajax
 from zds.utils.models import HatRequest, Hat, get_hat_to_add
 from zds.utils.paginator import ZdSPagingListView
 
@@ -74,7 +75,7 @@ def get_initial(self):
         return initial
 
     def post(self, request, *args, **kwargs):
-        if "preview" in request.POST and request.is_ajax():
+        if "preview" in request.POST and is_ajax(request):
             content = render(request, "misc/preview.part.html", {"text": request.POST.get("text")})
             return StreamingHttpResponse(content)
 

zds/member/views/profile.py

@@ -36,6 +36,7 @@
 from zds.notification.models import TopicAnswerSubscription, NewPublicationSubscription
 from zds.tutorialv2.models import CONTENT_TYPES
 from zds.tutorialv2.models.database import PublishedContent, ContentContribution, ContentReaction
+from zds.utils.misc import is_ajax
 from zds.utils.templatetags.pluralize_fr import pluralize_fr
 
 
@@ -244,7 +245,7 @@ def get_form(self, form_class=ProfileForm):
     def post(self, request, *args, **kwargs):
         form = self.form_class(request.POST)
 
-        if "preview" in request.POST and request.is_ajax():
+        if "preview" in request.POST and is_ajax(request):
             content = render(request, "misc/preview.part.html", {"text": request.POST.get("text")})
             return StreamingHttpResponse(content)
 

zds/middlewares/matomomiddleware.py

@@ -10,6 +10,7 @@
 from django.urls import reverse
 
 from zds.member.views import get_client_ip
+from zds.utils.misc import is_ajax
 
 matomo_token_auth = settings.ZDS_APP["site"]["matomo_token_auth"]
 matomo_api_url = "{}/matomo.php?token_auth={}".format(settings.ZDS_APP["site"]["matomo_url"], matomo_token_auth)
@@ -96,7 +97,7 @@ def matomo_track(self, request, search_data=None):
             self.queue.put(tracking_params)
 
     def process_response(self, request, response):
-        if response.status_code not in tracked_status_code or request.is_ajax():
+        if response.status_code not in tracked_status_code or is_ajax(request):
             return response
         # only on get
         if request.method in tracked_methods:

zds/mp/views.py

@@ -30,6 +30,7 @@
     PrivatePostVote,
     is_reachable,
 )
+from zds.utils.misc import is_ajax
 
 
 class PrivateTopicList(LoginRequiredMixin, ZdSPagingListView):
@@ -64,7 +65,7 @@ def post(self, request, *args, **kwargs):
         form = self.get_form(self.form_class)
 
         if "preview" in request.POST:
-            if request.is_ajax():
+            if is_ajax(request):
                 content = render(request, "misc/preview.part.html", {"text": request.POST["text"]})
                 return StreamingHttpResponse(content)
             else:
@@ -307,7 +308,7 @@ def post(self, request, *args, **kwargs):
         form = self.get_form(self.form_class)
 
         if "preview" in request.POST:
-            if request.is_ajax():
+            if is_ajax(request):
                 content = render(request, "misc/preview.part.html", {"text": request.POST["text"]})
                 return StreamingHttpResponse(content)
         elif form.is_valid():

zds/tutorialv2/mixins.py

@@ -12,6 +12,7 @@
 from zds.tutorialv2.models.database import PublishableContent, PublishedContent, ContentRead
 from zds.tutorialv2.utils import mark_read
 from zds.tutorialv2.models.help_requests import HelpWriting
+from zds.utils.misc import is_ajax
 
 
 class SingleContentViewMixin:
@@ -186,7 +187,7 @@ def post(self, request, *args, **kwargs):
 
         if "preview" in request.POST:
             self.form_invalid(form)
-            if request.is_ajax():
+            if is_ajax(self.request):
                 content = render_to_string("misc/preview.part.html", {"text": request.POST.get("text")})
                 return StreamingHttpResponse(content)
 

zds/tutorialv2/views/comments.py

@@ -20,6 +20,7 @@
 from zds.tutorialv2.forms import NoteForm, NoteEditForm
 from zds.tutorialv2.mixins import SingleOnlineContentFormViewMixin, MustRedirect, SingleOnlineContentViewMixin
 from zds.tutorialv2.models.database import ContentReaction
+from zds.utils.misc import is_ajax
 from zds.utils.models import CommentEdit, get_hat_from_request, Alert
 
 
@@ -97,7 +98,7 @@ def get(self, request, *args, **kwargs):
                 text = "\n".join("> " + line for line in reaction.text.split("\n"))
                 text += f"\nSource: [{reaction.author.username}]({reaction.get_absolute_url()})"
 
-                if self.request.is_ajax():
+                if is_ajax(self.request):
                     return StreamingHttpResponse(json_handler.dumps({"text": text}, ensure_ascii=False))
                 else:
                     self.quoted_reaction_text = text
@@ -110,7 +111,7 @@ def get(self, request, *args, **kwargs):
             )
 
     def post(self, request, *args, **kwargs):
-        if "preview" in request.POST and request.is_ajax():
+        if "preview" in request.POST and is_ajax(request):
             content = render(request, "misc/preview.part.html", {"text": request.POST["text"]})
             return StreamingHttpResponse(content)
         else:
@@ -362,6 +363,6 @@ def post(self, request, *args, **kwargs):
             response["follow"] = ContentReactionAnswerSubscription.objects.toggle_follow(
                 self.get_object(), self.request.user, True
             ).is_active
-        if self.request.is_ajax():
+        if is_ajax(self.request):
             return HttpResponse(json_handler.dumps(response), content_type="application/json")
         return redirect(self.get_object().get_absolute_url())

zds/tutorialv2/views/containers_extracts.py

@@ -27,6 +27,7 @@
     try_adopt_new_child,
     TooDeepContainerError,
 )
+from zds.utils.misc import is_ajax
 
 logger = logging.getLogger(__name__)
 
@@ -277,7 +278,7 @@ def form_valid(self, form):
         self.object.update(sha_draft=sha, update_date=datetime.now())
 
         self.success_url = extract.get_absolute_url()
-        if self.request.is_ajax():
+        if is_ajax(self.request):
             return JsonResponse(
                 {"result": "ok", "last_hash": extract.compute_hash(), "new_url": extract.get_edit_url()}
             )

zds/tutorialv2/views/help.py

@@ -12,6 +12,7 @@
 
 from zds.tutorialv2.models.database import PublishableContent
 from zds.tutorialv2.models.help_requests import HelpWriting
+from zds.utils.misc import is_ajax
 from zds.utils.paginator import ZdSPagingListView
 
 
@@ -84,12 +85,12 @@ def form_valid(self, form):
             self.object.helps.remove(data["help_wanted"])
         self.object.save()
         signals.help_management.send(sender=self.__class__, performer=self.request.user, content=self.object)
-        if self.request.is_ajax():
+        if is_ajax(self.request):
             return JsonResponse({"state": data["activated"]})
         self.success_url = self.object.get_absolute_url()
         return super().form_valid(form)
 
     def form_invalid(self, form):
-        if self.request.is_ajax():
+        if is_ajax(self.request):
             return JsonResponse({"errors": form.errors}, status=400)
         return super().form_invalid(form)

zds/tutorialv2/views/misc.py

@@ -17,6 +17,7 @@
 from zds.tutorialv2.mixins import SingleOnlineContentViewMixin, SingleContentFormViewMixin
 from zds.tutorialv2.utils import search_container_or_404
 from zds.mp.utils import send_mp
+from zds.utils.misc import is_ajax
 
 
 class RequestFeaturedContent(LoggedWithReadWriteHability, FeatureableMixin, SingleOnlineContentViewMixin, FormView):
@@ -32,7 +33,7 @@ def post(self, request, *args, **kwargs):
 
         response = dict()
         response["requesting"], response["newCount"] = self.toogle_featured_request(request.user)
-        if self.request.is_ajax():
+        if is_ajax(self.request):
             return HttpResponse(json_handler.dumps(response), content_type="application/json")
         return redirect(self.public_content_object.get_absolute_url_online())
 
@@ -68,7 +69,7 @@ def post(self, request, *args, **kwargs):
             elif "email" in request.POST:
                 response["email"] = self.perform_follow_by_email(user_to_follow, request.user)
 
-        if request.is_ajax():
+        if is_ajax(self.request):
             return HttpResponse(json_handler.dumps(response), content_type="application/json")
         return redirect(request.META.get("HTTP_REFERER"))
 

zds/utils/misc.py

@@ -2,6 +2,7 @@
 import re
 
 from django.contrib.auth import get_user_model
+from django.http import HttpRequest
 
 THUMB_MAX_WIDTH = 80
 THUMB_MAX_HEIGHT = 80
@@ -61,7 +62,7 @@ def contains_utf8mb4(s):
 def check_essential_accounts():
     """
     Verify that essential accounts are present in the database.
-    Raise an exception if it not the case.
+    Raise an exception if it is not the case.
     """
 
     from django.conf import settings
@@ -78,3 +79,22 @@ def check_essential_accounts():
                 f"User {username!r} does not exist. You must create it to run the server. "
                 f"On a development instance, load the fixtures to solve this issue."
             )
+
+
+def is_ajax(request: HttpRequest):
+    """
+    Check whether the request was sent asynchronously.
+
+    The function returns True for :
+
+    * requests sent using jQuery.ajax() since it sets the header `X-Requested-With`
+      to `XMLHttpRequest` by default ;
+    * requests sent using the tools provided by `ajax.js`, which reproduce the behavior
+      described above to ease the progressive removal of jQuery from the codebase.
+
+    The function returns False for requests without the appropriate header.
+    These requests will not be recognized as AJAX.
+
+    The function replaces `request.is_ajax()`, which is removed starting from Django 4.0.
+    """
+    return request.META.get("HTTP_X_REQUESTED_WITH") == "XMLHttpRequest"