Clean and standardise instagram entries

ynr/apps/people/forms/forms.py

@@ -19,6 +19,7 @@
     StrippedCharField,
 )
 from people.helpers import (
+    clean_instagram_username,
     clean_mastodon_username,
     clean_twitter_username,
     clean_wikidata_id,
@@ -116,6 +117,17 @@ def clean(self):
                     self.add_error(None, e)
         return self.cleaned_data
 
+    def clean_instagram_url(self, username):
+        if self.instance.value != username:
+            self.instance.internal_identifier = None
+        if self.instance.internal_identifier:
+            return username
+        try:
+            return clean_instagram_username(username)
+        except ValueError as e:
+            raise ValidationError(e)
+        return username
+
     def clean_twitter_username(self, username):
         if self.instance.value != username:
             self.instance.internal_identifier = None

ynr/apps/people/helpers.py

@@ -120,6 +120,20 @@ def clean_twitter_username(username):
     return username
 
 
+def clean_instagram_username(username):
+    # Remove any URL bits around it:
+    username = username.strip()
+    m = re.search(r"^.*(instagram.com|x.com)/(\@?)(\w+)", username)
+    if m:
+        username = m.group(3)
+    # If there's a leading '@', strip that off:
+    username = re.sub(r"^@", "", username)
+    if not re.search(r"^\w*$", username):
+        message = "The Instagram username must only consist of alphanumeric characters or underscore"
+        raise ValueError(message)
+    return username
+
+
 def clean_wikidata_id(identifier):
     identifier = identifier.strip().lower()
     m = re.search(r"^.*wikidata.org/(wiki|entity)/(\w+)", identifier)

ynr/apps/people/tests/test_person_form_identifier_crud.py

@@ -185,6 +185,14 @@ def test_twitter_full_url(self):
             PersonIdentifier.objects.get().value, "madeuptwitteraccount"
         )
 
+    def test_clean_instagram_url(self):
+        resp = self._submit_values("blah", "instagram_url")
+        self.assertEqual(resp.status_code, 200)
+        self.assertEqual(
+            PersonIdentifier.objects.get().value,
+            "http://www.instagram.com/blah",
+        )
+
     def test_mastodon_bad_url(self):
         # submit a username missing the `@` symbol
         resp = self._submit_mastodon_values("https://mastodon.social/joe")