Submitted By: Mario Fetka (mario dot fetka at gmail dot com)
Date: 2009-03-15
Initial Package Version: 0.2.1
Origin: http://trac-hacks.org/wiki/RegistrationConfirmationPatch
Upstream Status: unknown
Description: This is a patch for AccountManagerPlugin that adds an 
IRegistrationConfirmation extension point that enables pluggable 
verifications for new user registration. 
 
diff -Naur trac-acct_mgr-0.2.1.orig/acct_mgr/api.py trac-acct_mgr-0.2.1/acct_mgr/api.py
--- trac-acct_mgr-0.2.1.orig/acct_mgr/api.py	2009-03-15 06:40:44.875670135 +0000
+++ trac-acct_mgr-0.2.1/acct_mgr/api.py	2009-03-15 06:41:38.225188601 +0000
@@ -77,6 +77,19 @@
         """User deleted
         """
 
+class IRegistrationConfirmation(Interface):
+    """An interface for receiving notification before and after the new user 
+    registration form has been submitted.
+    """
+
+    def pre_registration(self, req):
+        """Returns the markup to be added to the registration form
+        """
+
+    def verify_registration(self, req):
+        """Returns an error message if confirmation fails, or None on success
+        """
+
 class AccountManager(Component):
     """The AccountManager component handles all user account management methods
     provided by the IPasswordStore interface.
diff -Naur trac-acct_mgr-0.2.1.orig/acct_mgr/templates/register.html trac-acct_mgr-0.2.1/acct_mgr/templates/register.html
--- trac-acct_mgr-0.2.1.orig/acct_mgr/templates/register.html	2009-03-15 06:40:44.873359012 +0000
+++ trac-acct_mgr-0.2.1/acct_mgr/templates/register.html	2009-03-15 06:41:38.227503636 +0000
@@ -43,6 +43,11 @@
                      class="textwidget" size="20" />
             </label>
           </div>
+	  <py:if test="extra_required_content">
+	  <div>
+	    ${Markup(extra_required_content)}
+	  </div>
+	  </py:if>
         </fieldset>
         <fieldset>
           <legend>Optional</legend>
diff -Naur trac-acct_mgr-0.2.1.orig/acct_mgr/web_ui.py trac-acct_mgr-0.2.1/acct_mgr/web_ui.py
--- trac-acct_mgr-0.2.1.orig/acct_mgr/web_ui.py	2009-03-15 06:40:44.875670135 +0000
+++ trac-acct_mgr-0.2.1/acct_mgr/web_ui.py	2009-03-15 06:59:06.581876742 +0000
@@ -394,19 +394,28 @@
                               'name' : None,
                               'email' : None,
                             },
+                'extra_required_content' : self._get_extra_content(req),
                 }
+        error = None
         if req.method == 'POST' and action == 'create':
-            try:
-                _create_user(req, self.env)
-            except TracError, e:
-                data['registration_error'] = e.message
-                formdata = getattr(e, 'acctmgr', None)
-                if formdata:
-                    data['acctmgr'] = formdata
-                else:
-                    raise e
-            else:
-                req.redirect(req.href.login())
+            for listener in self.listeners:
+                error  = listener.verify_registration(req)
+                if error is not None:
+                    break
+            data['registration_error'] = error
+            if error is None:
+		try:
+            	    _create_user(req, self.env)
+        	except TracError, e:
+            	    data['registration_error'] = e.message
+            	    formdata = getattr(e, 'acctmgr', None)
+            	    if formdata:
+                	data['acctmgr'] = formdata
+            	    else:
+                	raise e
+        	else:
+            	    req.redirect(req.href.login())
+
         data['reset_password_enabled'] = \
             (self.env.is_component_enabled(AccountModule)
              and NotificationSystem(self.env).smtp_enabled)
@@ -414,6 +423,14 @@
         return 'register.html', data, None
 
 
+     def _get_extra_content(self, req):
+         ret = ""
+         for listener in self.listeners:
+             response = listener.pre_registration(req)
+             if response is not None:
+                 ret += response
+         return ret
+
     # ITemplateProvider
 
     def get_htdocs_dirs(self):