Add UI for deactivating your own Zulip account.

Fixes #1009.

static/js/settings.js

@@ -452,6 +452,25 @@ function _setup_page() {
         $('#default_language_modal').modal('show');
     });
 
+    $("#user_deactivate_account_button").on('click', function (e) {
+        e.preventDefault();
+        e.stopPropagation();
+        $("#deactivate_self_modal").modal("show");
+    });
+
+    $("#do_deactivate_self_button").on('click',function (e) {
+        $("#deactivate_self_modal").modal("hide");
+        channel.del({
+            url: '/json/users/me',
+            success: function () {
+                window.location.href = "/login";
+            },
+            error: function (xhr, error_type) {
+                ui.report_error(i18n.t("Error deactivating account"), xhr, $('#settings-status').expectOne());
+            }
+        });
+    });
+
     $("#get_api_key_box").hide();
     $("#show_api_key_box").hide();
     $("#get_api_key_box form").ajaxForm({

static/templates/settings/account-settings.handlebars

@@ -56,9 +56,26 @@
         <input type="file" name="user_avatar_file_input" class="notvisible" id="user_avatar_file_input" value="{{t 'Upload avatar' }}" />
         <div id="upload_avatar_spinner"></div>
         <button class="button standalone" id="user_avatar_upload_button">{{t 'Customize avatar' }}</button>
+        <button class="button standalone btn-danger" id="user_deactivate_account_button">{{t 'Deactivate Account' }}</button>
       </div>
 
     </form>
 
+      <div id="deactivate_self_modal" class="modal hide fade" tabindex="-1" role="dialog" aria-labelledby="deactivation_self_modal_label" aria-hidden="true">
+        <div class="modal-header">
+          <button type="button" class="close" data-dismiss="modal" aria-hidden="true">×</button>
+          <h3 id="deactivation_user_modal_label">{{t "Deactivate Your Account" }} </h3>
+        </div>
+        <div class="modal-body">
+          <p>{{#tr this}}By deactivating your account, you will be logged out immediately.{{/tr}}</p>
+          <p>{{t "Note that any bots that you maintain will be disabled." }}</p>
+        </div>
+        <div class="modal-footer">
+          <button class="btn btn-default" data-dismiss="modal" aria-hidden="true">{{t "Cancel" }}</button>
+          <button class="button btn-danger" id="do_deactivate_self_button">{{t "Deactivate now" }}</button>
+
+        </div>
+      </div>
+
   </div>
 </div>

zerver/tests/test_signup.py

@@ -16,6 +16,7 @@ from zerver.models import (
 from zerver.lib.actions import (
     create_stream_if_needed,
     set_default_streams,
+    do_change_is_admin
 )
 
 from zerver.lib.initial_password import initial_password
@@ -749,3 +750,35 @@ class UserSignUpTest(ZulipTestCase):
             self.assertEqual(realm.name, realm_name)
             self.assertEqual(realm.subdomain, subdomain)
             self.assertEqual(get_user_profile_by_email(email).realm, realm)
+
+class DeactivateUserTest(ZulipTestCase):
+
+    def test_deactivate_user(self):
+        # type: () -> None
+        email = 'hamlet@zulip.com'
+        self.login(email)
+        user = get_user_profile_by_email('hamlet@zulip.com')
+        self.assertTrue(user.is_active)
+        result = self.client_delete('/json/users/me')
+        self.assert_json_success(result)
+        user = get_user_profile_by_email('hamlet@zulip.com')
+        self.assertFalse(user.is_active)
+        self.login(email, fails=True)
+
+    def test_do_not_deactivate_final_admin(self):
+        # type: () -> None
+        email = 'iago@zulip.com'
+        self.login(email)
+        user = get_user_profile_by_email('iago@zulip.com')
+        self.assertTrue(user.is_active)
+        self.client_delete('/json/users/me')
+        user = get_user_profile_by_email('iago@zulip.com')
+        self.assertTrue(user.is_active)
+        self.assertTrue(user.is_realm_admin)
+        email = 'hamlet@zulip.com'
+        user_2 = get_user_profile_by_email('hamlet@zulip.com')
+        do_change_is_admin(user_2, True)
+        self.assertTrue(user_2.is_realm_admin)
+        result = self.client_delete('/json/users/me')
+        self.assert_json_success(result)
+        do_change_is_admin(user, True)

zerver/views/users.py

@@ -33,6 +33,15 @@ def deactivate_user_backend(request, user_profile, email):
         return json_error(_('No such user'))
     return _deactivate_user_profile_backend(request, user_profile, target)
 
+def deactivate_user_own_backend(request, user_profile):
+    # type: (HttpRequest, UserProfile) -> HttpResponse
+    admins = set(user_profile.realm.get_admin_users())
+
+    if user_profile.is_realm_admin and len(admins) == 1:
+        return json_error(_('Cannot deactivate the only admin'))
+    do_deactivate_user(user_profile)
+    return json_success({})
+
 def deactivate_bot_backend(request, user_profile, email):
     # type: (HttpRequest, UserProfile, text_type) -> HttpResponse
     try:

zproject/urls.py

@@ -175,7 +175,8 @@ v1_api_and_json_patterns = [
 
     # users/me -> zerver.views
     url(r'^users/me$', 'zerver.lib.rest.rest_dispatch',
-        {'GET': 'zerver.views.pointer.get_profile_backend'}),
+        {'GET': 'zerver.views.pointer.get_profile_backend',
+         'DELETE':'zerver.views.users.deactivate_user_own_backend'}),
     url(r'^users/me/pointer$', 'zerver.lib.rest.rest_dispatch',
         {'GET': 'zerver.views.pointer.get_pointer_backend',
          'PUT': 'zerver.views.pointer.update_pointer_backend'}),