From fad92747bec989fd6728eb7349c9ede4674764ff Mon Sep 17 00:00:00 2001
From: brettp <brettp@36083f99-b078-4883-b0ff-0f9b5a30f544>
Date: Thu, 30 Sep 2010 19:56:49 +0000
Subject: Fixes #617, #2271 User validation removed from core to
 UserValidationByEmail plugin. Without a validation plugin, users can login
 immediately. Fixes #2243 Removed "You have validated your email" email. Users
 are logged in immediately after registration or validating email. Refs #2409
 Added register, user plugin hook that is called only on self registration.
 Can be used to halt registration.

git-svn-id: http://code.elgg.org/elgg/trunk@6983 36083f99-b078-4883-b0ff-0f9b5a30f544
---
 mod/uservalidationbyemail/lib/functions.php | 107 ++++++++++++++++++++++++++++
 1 file changed, 107 insertions(+)
 create mode 100644 mod/uservalidationbyemail/lib/functions.php

(limited to 'mod/uservalidationbyemail/lib/functions.php')

diff --git a/mod/uservalidationbyemail/lib/functions.php b/mod/uservalidationbyemail/lib/functions.php
new file mode 100644
index 000000000..ed66b40d4
--- /dev/null
+++ b/mod/uservalidationbyemail/lib/functions.php
@@ -0,0 +1,107 @@
+<?php
+/**
+ * Helper functions
+ *
+ * @package Elgg.Core.Plugin
+ * @subpackage UserValidationByEmail
+ */
+
+/**
+ * Generate an email activation code.
+ *
+ * @param int $user_guid The guid of the user
+ * @param string $email_address Email address
+ * @return string
+ */
+function uservalidationbyemail_generate_code($user_guid, $email_address) {
+	global $CONFIG;
+
+	// Note I bind to site URL, this is important on multisite!
+	return md5($user_guid . $email_address . $CONFIG->site->url . get_site_secret());
+}
+
+/**
+ * Request user validation email.
+ * Send email out to the address and request a confirmation.
+ *
+ * @param int $user_guid The user
+ * @return mixed
+ */
+function uservalidationbyemail_request_validation($user_guid) {
+	global $CONFIG;
+
+	$user_guid = (int)$user_guid;
+	$user = get_entity($user_guid);
+
+	if (($user) && ($user instanceof ElggUser)) {
+		// Work out validate link
+		$code = uservalidationbyemail_generate_code($user_guid, $user->email);
+		$link = "{$CONFIG->site->url}pg/uservalidationbyemail/confirm?u=$user_guid&c=$code";
+		$site = $CONFIG->site;
+
+		// Send validation email
+		$subject = sprintf(elgg_echo('email:validate:subject'), $user->name, $site->name);
+		$body = sprintf(elgg_echo('email:validate:body'), $user->name, $site->name, $link, $site->name, $site->url);
+		$result = notify_user($user->guid, $CONFIG->site->guid, $subject, $body, NULL, 'email');
+
+		if ($result) {
+			system_message(elgg_echo('uservalidationbyemail:registerok'));
+		}
+
+		return $result;
+	}
+
+	return FALSE;
+}
+
+/**
+ * Validate a user
+ *
+ * @param unknown_type $user_guid
+ * @param unknown_type $code
+ * @return unknown
+ */
+function uservalidationbyemail_validate_email($user_guid, $code) {
+	$user = get_entity($user_guid);
+
+	if ($code == uservalidationbyemail_generate_code($user_guid, $user->email)) {
+		return uservalidationbyemail_set_user_validation_status($user_guid, true, 'email');
+	}
+
+	return false;
+}
+
+/**
+ * Set the validation status for a user.
+ *
+ * @param bool $status Validated (true) or false
+ * @param string $method Optional method to say how a user was validated
+ * @return bool
+ */
+function uservalidationbyemail_set_user_validation_status($user_guid, $status, $method = '') {
+	if (!$status) {
+		$method = '';
+	}
+
+	if ($status) {
+		if (
+			(create_metadata($user_guid, 'validated', $status,'', 0, ACCESS_PUBLIC)) &&
+			(create_metadata($user_guid, 'validated_method', $method,'', 0, ACCESS_PUBLIC))
+		) {
+			return TRUE;
+		}
+	} else {
+		$validated = get_metadata_byname($user_guid,  'validated');
+		$validated_method = get_metadata_byname($user_guid,  'validated_method');
+
+		if (
+			($validated) &&
+			($validated_method) &&
+			(delete_metadata($validated->id)) &&
+			(delete_metadata($validated_method->id))
+		)
+			return TRUE;
+	}
+
+	return FALSE;
+}
\ No newline at end of file
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