user can choose name

app/models.py

@@ -224,6 +224,13 @@ class User(db.Model, ModelMixin, UserMixin):
             list(set(all_gen_emails).difference(set([suggested_gen_email]))),
         )
 
+    def suggested_names(self) -> (str, [str]):
+        """return suggested name and other name choices """
+
+        other_name = convert_to_id(self.name)
+
+        return self.name, [other_name, "Anonymous", "whoami"]
+
 
 class ActivationCode(db.Model, ModelMixin):
     """For activate user account"""
@@ -433,7 +440,10 @@ class ClientUser(db.Model, ModelMixin):
 
         for scope in self.client.get_scopes():
             if scope == Scope.NAME:
-                res[Scope.NAME.value] = self.user.name
+                if self.name:
+                    res[Scope.NAME.value] = self.name
+                else:
+                    res[Scope.NAME.value] = self.user.name
             elif scope == Scope.AVATAR_URL:
                 if self.user.profile_picture_id:
                     res[Scope.AVATAR_URL.value] = self.user.profile_picture.get_url()

app/oauth/templates/oauth/authorize.html

@@ -76,15 +76,26 @@
           </div>
         </div>
 
-        <div class="row mt-4">
+        <div class="row mt-4 md-4">
           <div class="col-md-3 text-left">
-            <label>Name</label>
+            <label style="padding-top: .5rem">Name</label>
           </div>
           <div class="col-md-9">
-            {{ current_user.name }}
+            <select class="custom-select custom-select" name="suggested-name">
+              <option selected value="{{ suggested_name }}">{{ suggested_name }}</option>
+              {% for name in other_names %}
+                <option value="{{ name }}">{{ name }}</option>
+              {% endfor %}
+            </select>
+
+            <div class="mt-2">OR</div>
+            <div class="mt-2">
+              <input class="form-control" name="custom-name">
+            </div>
           </div>
         </div>
 
+
         {% if current_user.profile_picture_id %}
           <div class="row mt-4">
             <div class="col-md-3 text-right">

app/oauth/views/authorize.py

@@ -65,6 +65,7 @@ def authorize():
     if request.method == "GET":
         if current_user.is_authenticated:
             suggested_email, other_emails, email_suffix = None, [], None
+            suggested_name, other_names = None, []
 
             # user has already allowed this client
             client_user: ClientUser = ClientUser.get_by(
@@ -76,6 +77,7 @@ def authorize():
                 user_info = client_user.get_user_info()
             else:
                 suggested_email, other_emails = current_user.suggested_emails()
+                suggested_name, other_names = current_user.suggested_names()
                 email_suffix = random_string(6)
 
             return render_template(
@@ -86,6 +88,8 @@ def authorize():
                 Scope=Scope,
                 suggested_email=suggested_email,
                 personal_email=current_user.email,
+                suggested_name=suggested_name,
+                other_names=other_names,
                 other_emails=other_emails,
                 email_suffix=email_suffix,
                 EMAIL_DOMAIN=EMAIL_DOMAIN,
@@ -115,6 +119,9 @@ def authorize():
             custom_email_prefix = request.form.get("custom-email-prefix")
             chosen_email = request.form.get("suggested-email")
 
+            suggested_name = request.form.get("suggested-name")
+            custom_name = request.form.get("custom-name")
+
             gen_email = None
             if custom_email_prefix:
                 # check if user can generate custom email
@@ -143,6 +150,23 @@ def authorize():
             if gen_email:
                 client_user.gen_email_id = gen_email.id
 
+            if custom_name:
+                LOG.d(
+                    "use custom name %s for user %s client %s",
+                    custom_name,
+                    current_user,
+                    client,
+                )
+                client_user.name = custom_name
+            elif suggested_name != current_user.name:
+                LOG.d(
+                    "use another name %s for user %s client %s",
+                    custom_name,
+                    current_user,
+                    client,
+                )
+                client_user.name = suggested_name
+
             db.session.flush()
             LOG.d("create client-user for client %s, user %s", client, current_user)