Add a configuration option to make email optional for password registration

docs/api/spec.json

@@ -35,6 +35,7 @@
                   "server_name": "example.com",
                   "password_login_enabled": true,
                   "password_registration_enabled": true,
+                  "password_registration_email_required": true,
                   "registration_token_required": true,
                   "email_change_allowed": true,
                   "displayname_change_allowed": true,
@@ -3680,6 +3681,7 @@
           "minimum_password_complexity",
           "password_change_allowed",
           "password_login_enabled",
+          "password_registration_email_required",
           "password_registration_enabled",
           "registration_token_required",
           "server_name"
@@ -3697,6 +3699,10 @@
             "description": "Whether password registration is enabled.",
             "type": "boolean"
           },
+          "password_registration_email_required": {
+            "description": "Whether a valid email address is required for password registrations.",
+            "type": "boolean"
+          },
           "registration_token_required": {
             "description": "Whether registration tokens are required for password registrations.",
             "type": "boolean"

docs/config.schema.json

@@ -2604,6 +2604,10 @@
           "description": "Whether to enable self-service password registration. Defaults to `false` if password authentication is enabled.\n\nThis has no effect if password login is disabled.",
           "type": "boolean"
         },
+        "password_registration_email_required": {
+          "description": "Whether self-service password registrations require a valid email. Defaults to `true`.\n\nThis has no effect if password registration is disabled.",
+          "type": "boolean"
+        },
         "password_change_allowed": {
           "description": "Whether users are allowed to change their passwords. Defaults to `true`.\n\nThis has no effect if password login is disabled.",
           "type": "boolean"

docs/reference/configuration.md

@@ -296,6 +296,12 @@ account:
   # This has no effect if password login is disabled.
   password_registration_enabled: false
 
+  # Whether self-service registrations require a valid email
+  #
+  # Defaults to `true`
+  # This has no effect if password registration is disabled.
+  password_registration_email_required: true
+
   # Whether users are allowed to change their passwords
   #
   # Defaults to `true`.
@@ -759,7 +765,7 @@ upstream_oauth2:
         localpart:
           #action: force
           #template: "{{ user.preferred_username }}"
-          
+
           # How to handle when localpart already exists.
           # Possible values are (default: fail):
           # - `add` : Adds the upstream account link to the existing user, regardless of whether there is an existing link or not.