add invite system

app/templates/common/topnav.html

@@ -4,7 +4,11 @@
   </span>
   <span>
   {% if not is_logged_in() %}
+    {% if not config.DISABLE_SIGNUP %}
     Welcome, guest. Please <a href="{{url_for('users.sign_up')}}">sign up</a> or <a href="{{url_for('users.log_in')}}">log in</a>
+    {% else %}
+    Welcome, guest. Please <a href="{{url_for('users.log_in')}}">log in</a>
+    {% endif %}
   {% else %}
     {% with user = get_active_user() %}
       Welcome, <a href="{{ url_for("users.page", username = user.username) }}">{{user.username}}</a>
@@ -12,6 +16,10 @@
       <a href="{{ url_for("users.settings", username = user.username) }}">Settings</a>
       &bullet;
       <a href="{{ url_for("users.inbox", username = user.username) }}">Inbox</a>
+      {% if config.DISABLE_SIGNUP and user.can_invite() %}
+        &bullet;
+        <a href="{{ url_for('users.invite_links', username=user.username )}}">Invite to {{ config.SITE_NAME }}</a>
+      {% endif %}
       {% if user.is_mod() %}
         &bullet;
         <a href="{{ url_for("mod.user_list") }}">User list</a>

app/templates/users/invite_links.html

@@ -0,0 +1,36 @@
+{% from 'common/macros.html' import accordion %}
+{% extends 'base.html' %}
+{% block title %}invites{% endblock %}
+{% block content %}
+<div class="darkbg inbox-container">
+  <p>To manage growth, {{ config.SITE_NAME }} disallows direct sign ups. Instead, users already with an account may invite people they know. You can create invite links here. Once an invite link is used to sign up, it can no longer be used.</p>
+  {% call(section) accordion(disabled=invites | length == 0) %}
+    {% if section == 'header' %}
+    Your invites
+    {% else %}
+      {% if invites %}
+        <table class="colorful-table">
+          <thead>
+            <th class='small'>Link</th>
+            <th class='small'>Revoke</th>
+          </thead>
+        {% for invite in invites %}
+          <tr>
+            <td><a href="{{url_for('users.sign_up', key=invite.key)}}">Link</a></td>
+            <td>
+              <form method="post" action="{{ url_for('users.revoke_invite_link', username=active_user.username) }}">
+                <input type=hidden value="{{ invite.key }}" name="key">
+                <input type=submit class=warn value="Revoke">
+              </form>
+            </td>
+          </tr>
+        {% endfor %}
+        </table>
+      {% endif %}
+    {% endif %}
+  {% endcall %}
+  <form method="post" action="{{ url_for('users.create_invite_link', username=active_user.username) }}">
+    <input type=submit value="Create new invite">
+  </form>
+</div>
+{% endblock %}

app/templates/users/sign_up.html

@@ -3,7 +3,13 @@
 {% block content %}
 <div class="darkbg login-container">
   <h1>Sign up</h1>
+  {% if inviter %}
+  <p>You have been invited by <a href="{{ url_for('users.page', username=inviter.username) }}">{{ inviter.username }}</a> to join {{ config.SITE_NAME }}. Create an identity below.</p>
+  {% endif %}
   <form method="post">
+    {% if key %}
+      <input type="hidden" value={{key}} name="key">
+    {% endif %}
     <label for="username">Username</label><br>
     <input type="text" id="username" name="username" pattern="[a-zA-Z0-9_-]{3,20}" title="3-20 characters. Only upper and lowercase letters, digits, hyphens, and underscores" required autocomplete="username"><br>
     <label for="password">Password</label>
@@ -12,6 +18,8 @@
     <input type="password" id="password-confirm" name="password-confirm" pattern="(?=.*[a-z])(?=.*[A-Z])(?=.*\d)(?=.*[\W_])(?!.*\s).{10,255}" title="10+ chars with: 1 uppercase, 1 lowercase, 1 number, 1 special char, and no spaces" required autocomplete="new-password"><br>
     <input type="submit" value="Sign up">
   </form>
+  {% if not inviter %}
   <span>After you sign up, a moderator will need to confirm your account before you will be allowed to post.</span>
+  {% endif %}
 </div>
 {% endblock %}

app/templates/users/user.html

@@ -64,6 +64,9 @@
         {% if stats.latest_thread_title %}
           <li>Latest started thread: <a href="{{ url_for("threads.thread", slug = stats.latest_thread_slug) }}">{{ stats.latest_thread_title }}</a>
         {% endif %}
+        {% if stats.inviter_username %}
+          <li>Invited by <a href="{{ url_for('users.page', username=stats.inviter_username) }}">{{ stats.inviter_username }}</a></li>
+        {% endif %}
       </ul>
     {% endwith %}
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