From 70cf5bb7654a551511c0b05cd782349dbbde2c78 Mon Sep 17 00:00:00 2001
From: Joey Hess <joeyh@joeyh.name>
Date: Wed, 13 May 2015 23:32:29 -0400
Subject: [PATCH] don't let emailauth user's email address be changed on
 preferences page

There's no real problem if they do change it, except they may get confused
and expect to be able to log in with the changed email and get the same
user account.
---
 IkiWiki/Plugin/emailauth.pm | 14 +++++++++++++-
 1 file changed, 13 insertions(+), 1 deletion(-)

diff --git a/IkiWiki/Plugin/emailauth.pm b/IkiWiki/Plugin/emailauth.pm
index 57100a2d7..aa067238f 100644
--- a/IkiWiki/Plugin/emailauth.pm
+++ b/IkiWiki/Plugin/emailauth.pm
@@ -8,7 +8,8 @@ use IkiWiki 3.00;
 
 sub import {
 	hook(type => "getsetup", id => "emailauth", "call" => \&getsetup);
-	hook(type => "cgi", id => "cgi", "call" => \&cgi);
+	hook(type => "cgi", id => "emailauth", "call" => \&cgi);
+	hook(type => "formbuilder_setup", id => "emailauth", "call" => \&formbuilder_setup);
 	IkiWiki::loadplugin("loginselector");
 	IkiWiki::Plugin::loginselector::register_login_plugin(
 		"emailauth",
@@ -111,6 +112,17 @@ sub cgi ($$) {
 	}
 }
 
+sub formbuilder_setup (@) {
+	my %params=@_;
+	my $form=$params{form};
+	my $session=$params{session};
+
+	if ($form->title eq "preferences" &&
+	    IkiWiki::emailuser($session->param("name"))) {
+		$form->field(name => "email", disabled => 1);
+	}
+}
+
 # Generates the token that will be used in the authurl to log the user in.
 # This needs to be hard to guess, and relatively short. Generating a cgi
 # session id will make it as hard to guess as any cgi session.