Make sending email invites configurable

Introduce "SENTRY_ENABLE_INVITES" setting to enable/disable the
ability to send email invites.

And while we're touching the new.html template, change the submit
button text for sending an invite from "Save Changes" to
"Send Invite".

src/sentry/conf/server.py

@@ -596,6 +596,9 @@ SENTRY_ALLOW_ORIGIN = None
 # Enable scraping of javascript context for source code
 SENTRY_SCRAPE_JAVASCRIPT_CONTEXT = True
 
+# Enable email invites
+SENTRY_ENABLE_INVITES = True
+
 # Redis connection information (see Nydus documentation)
 SENTRY_REDIS_OPTIONS = {}
 

src/sentry/templates/sentry/teams/members/new.html

@@ -11,6 +11,7 @@
 {% endblock %}
 
 {% block inner %}
+{% if invite_form %}
     <ul class="nav nav-tabs">
         <li class="active"><a href="#invite" data-toggle="tab">{% trans "Invite a new user" %}</a></li>
         <li><a href="#add" data-toggle="tab">{% trans "Add an existing user" %}</a></li>
@@ -19,16 +20,20 @@
         <div class="tab-pane active" id="invite">
             <p>{% trans "Invite a member to join this team via their email address. If they do not already have an account, they will first be asked to create one." %}</p>
             {% with invite_form as form %}
+                {% trans "Send Invite" as submit_label %}
                 {% include "sentry/partial/_form.html" %}
             {% endwith %}
         </div>
         <div class="tab-pane" id="add">
+{% endif %}
             <p>{% trans "You may add a user by their username if they already have an account." %}</p>
             {% with add_form as form %}
                 {% include "sentry/partial/_form.html" %}
             {% endwith %}
+{% if invite_form %}
         </div>
     </div>
+{% endif %}
 
     <script type="text/javascript">
     new app.AddTeamMemberPage();

src/sentry/web/frontend/teams.py

@@ -204,6 +204,8 @@ def manage_team_members(request, team):
 @csrf_protect
 @has_access(MEMBER_OWNER)
 def new_team_member(request, team):
+    from django.conf import settings
+
     if not can_add_team_member(request.user, team):
         return HttpResponseRedirect(reverse('sentry'))
 
@@ -211,7 +213,11 @@ def new_team_member(request, team):
         'type': MEMBER_USER,
     }
 
-    invite_form = InviteTeamMemberForm(team, request.POST or None, initial=initial, prefix='invite')
+    if settings.SENTRY_ENABLE_INVITES:
+        invite_form = InviteTeamMemberForm(team, request.POST or None, initial=initial, prefix='invite')
+    else:
+        invite_form = None
+
     add_form = NewTeamMemberForm(team, request.POST or None, initial=initial, prefix='add')
 
     if add_form.is_valid():
@@ -224,7 +230,7 @@ def new_team_member(request, team):
 
         return HttpResponseRedirect(reverse('sentry-manage-team-members', args=[team.slug]))
 
-    elif invite_form.is_valid():
+    elif invite_form and invite_form.is_valid():
         pm = invite_form.save(commit=False)
         pm.team = team
         pm.save()