← All changes | src/includes/classes/registrations.inc.php +104 -13 260913 → 261011 View file →

		@@ -56,8 +56,85 @@
56	56	return ($GLOBALS['ws_plugin__s2member_plain_text_pass'] = wp_generate_password());
57	57	}
58	58
59	59	/**
	60	+ * Returns an error when an email domain cannot receive mail.
	61	+ *
	62	+ * @package s2Member\Registrations
	63	+ * @since 261005
	64	+ *
	65	+ * @param string $email Email address being validated.
	66	+ *
	67	+ * @return string Error message, or an empty string when allowed/not enabled.
	68	+ */
	69	+ public static function registration_email_domain_validation_error($email = '')
	70	+ {
	71	+ if(empty($GLOBALS['WS_PLUGIN__']['s2member']['o']['custom_reg_require_valid_email_domain']) || !is_email($email))
	72	+ return '';
	73	+
	74	+ if(self::email_domain_validates($email))
	75	+ return '';
	76	+
	77	+ return _x('Please use an email address with a valid mail domain.', 's2member-front', 's2member');
	78	+ }
	79	+
	80	+ /**
	81	+ * Determines whether an email domain can receive mail.
	82	+ *
	83	+ * An MX record is preferred. Without MX, SMTP permits delivery to the domain's
	84	+ * address record, so A/AAAA is accepted as a standards-compatible fallback.
	85	+ * Resolver/runtime failures fail open; an explicit null MX fails closed.
	86	+ *
	87	+ * @package s2Member\Registrations
	88	+ * @since 261005
	89	+ *
	90	+ * @param string $email Syntactically valid email address.
	91	+ *
	92	+ * @return bool True when mail delivery is possible or DNS cannot be checked safely.
	93	+ */
	94	+ public static function email_domain_validates($email = '')
	95	+ {
	96	+ $email = trim((string)$email);
	97	+ if(!is_email($email) || !($at = strrpos($email, '@')) || !isset($email[$at + 1]))
	98	+ return TRUE; // Syntax validation belongs to the existing email validator, not this DNS-only check.
	99	+
	100	+ $domain = strtolower(substr($email, $at + 1));
	101	+ //261005.0438 Allow deterministic QA/custom resolvers to short-circuit DNS without changing the production fail-open behavior.
	102	+ $pre = apply_filters('ws_plugin__s2member_pre_email_domain_validation', NULL, $domain, $email);
	103	+ if($pre !== NULL)
	104	+ return (bool)$pre;
	105	+
	106	+ if(!function_exists('dns_get_record'))
	107	+ return TRUE;
	108	+
	109	+ $mx_records = @dns_get_record($domain, DNS_MX);
	110	+ if($mx_records === FALSE)
	111	+ return TRUE; // Resolver/runtime problem: do not lock out registration.
	112	+
	113	+ $has_null_mx = FALSE;
	114	+ foreach((array)$mx_records as $_record)
	115	+ if(isset($_record['target']))
	116	+ {
	117	+ if(strlen(trim((string)$_record['target'], ". \t\n\r\0\x0B")))
	118	+ return TRUE;
	119	+ $has_null_mx = TRUE;
	120	+ }
	121	+ unset($_record);
	122	+ if($has_null_mx)
	123	+ return FALSE; // Explicit null MX: the domain intentionally does not accept email.
	124	+
	125	+ $address_records = @dns_get_record($domain, DNS_A | DNS_AAAA);
	126	+ if($address_records === FALSE)
	127	+ return TRUE; // Resolver/runtime problem: fail open.
	128	+
	129	+ foreach((array)$address_records as $_record)
	130	+ if(!empty($_record['type']) && ($_record['type'] === 'A' || $_record['type'] === 'AAAA'))
	131	+ return TRUE;
	132	+ unset($_record);
	133	+ return FALSE;
	134	+ }
	135	+
	136	+ /**
60	137	* Filters WordPress-generated passwords.
61	138	*
62	139	* This can ONLY be fired through `/wp-login.php` on the front-side.
63	140	* Or through `/register` via BuddyPress.
		@@ -130,8 +207,12 @@
130	207
131	208	if(!is_admin() && preg_match('/\/wp-login\.php/'.$ci, $_SERVER['REQUEST_URI']))
132	209	if(is_wp_error($errors) && !empty($_POST) && is_array($_POST))
133	210	{
	211	+ //261005.0438 Validate the core registration email server-side; browser JavaScript cannot reliably inspect DNS.
	212	+ if(($_email_domain_error = self::registration_email_domain_validation_error($user_email)))
	213	+ $errors->add('invalid_email_domain', $_email_domain_error);
	214	+
134	215	foreach(c_ws_plugin__s2member_utils_strings::trim_deep(stripslashes_deep($_POST)) as $_key => $_value)
135	216	if(strpos($_key, 'ws_plugin__s2member_custom_reg_field_') === 0)
136	217	$input[str_replace('ws_plugin__s2member_custom_reg_field_', '', $_key)] = $_value;
137	218
		@@ -161,23 +242,29 @@
161	242	do_action('ws_plugin__s2member_before_custom_registration_field_errors_4bp', get_defined_vars());
162	243	unset($__refs, $__v); // Housekeeping.
163	244
164	245	if(!is_admin() && c_ws_plugin__s2member_utils_conds::bp_is_installed() && bp_is_register_page())
165		- if(in_array('registration', $GLOBALS['WS_PLUGIN__']['s2member']['o']['custom_reg_fields_4bp']))
166		- if(apply_filters('ws_plugin__s2member_custom_registration_fields_4bp_display', TRUE, get_defined_vars()))
167		- if(!empty($GLOBALS['bp']->signup) && is_object($GLOBALS['bp']->signup) && !empty($_POST) && is_array($_POST))
168		- {
169		- foreach(c_ws_plugin__s2member_utils_strings::trim_deep(stripslashes_deep($_POST)) as $_key => $_value)
170		- if(strpos($_key, 'ws_plugin__s2member_custom_reg_field_') === 0)
171		- $input[str_replace('ws_plugin__s2member_custom_reg_field_', '', $_key)] = $_value;
	246	+ {
	247	+ //261005.0438 On single-site BuddyPress, validate the account email here; Multisite is covered by `wpmu_validate_user_signup` below.
	248	+ if(!is_multisite() && !empty($GLOBALS['bp']->signup) && is_object($GLOBALS['bp']->signup) && !empty($_POST['signup_email']) && ($_email_domain_error = self::registration_email_domain_validation_error(stripslashes((string)$_POST['signup_email']))))
	249	+ $GLOBALS['bp']->signup->errors['signup_email'] = $_email_domain_error;
172	250
173		- $fields_to_validate = c_ws_plugin__s2member_custom_reg_fields::custom_fields_configured_at_level('auto-detection', 'registration', TRUE);
174		- $validation_errors = c_ws_plugin__s2member_custom_reg_fields::validation_errors(!empty($input) ? $input : array(), $fields_to_validate);
	251	+ if(in_array('registration', $GLOBALS['WS_PLUGIN__']['s2member']['o']['custom_reg_fields_4bp']))
	252	+ if(apply_filters('ws_plugin__s2member_custom_registration_fields_4bp_display', TRUE, get_defined_vars()))
	253	+ if(!empty($GLOBALS['bp']->signup) && is_object($GLOBALS['bp']->signup) && !empty($_POST) && is_array($_POST))
	254	+ {
	255	+ foreach(c_ws_plugin__s2member_utils_strings::trim_deep(stripslashes_deep($_POST)) as $_key => $_value)
	256	+ if(strpos($_key, 'ws_plugin__s2member_custom_reg_field_') === 0)
	257	+ $input[str_replace('ws_plugin__s2member_custom_reg_field_', '', $_key)] = $_value;
175	258
176		- if($validation_errors) foreach($validation_errors as $_field_var => $_error)
177		- $GLOBALS['bp']->signup->errors['custom_reg_field_'.$_field_var] = $_error;
178		- unset($_field_var, $_error);
179		- }
	259	+ $fields_to_validate = c_ws_plugin__s2member_custom_reg_fields::custom_fields_configured_at_level('auto-detection', 'registration', TRUE);
	260	+ $validation_errors = c_ws_plugin__s2member_custom_reg_fields::validation_errors(!empty($input) ? $input : array(), $fields_to_validate);
	261	+
	262	+ if($validation_errors) foreach($validation_errors as $_field_var => $_error)
	263	+ $GLOBALS['bp']->signup->errors['custom_reg_field_'.$_field_var] = $_error;
	264	+ unset($_field_var, $_error);
	265	+ }
	266	+ }
180	267	}
181	268
182	269	/**
183	270	* Filters Multisite User validation.
		@@ -213,8 +300,12 @@
213	300	{
214	301	unset($errors->errors['user_name'], $errors->errors['user_email'], $errors->errors['user_email_used']);
215	302	unset($errors->error_data['user_name'], $errors->error_data['user_email'], $errors->error_data['user_email_used']);
216	303	}
	304	+ //261005.0438 Enforce mail-domain validity on Multisite account creation after s2Member's existing-user join exception has been handled.
	305	+ if(!c_ws_plugin__s2member_utils_users::ms_user_login_email_exists_but_not_on_blog($result['user_name'], $result['user_email']) && ($_email_domain_error = self::registration_email_domain_validation_error($result['user_email'])))
	306	+ $errors->add('user_email_domain', $_email_domain_error);
	307	+
217	308	foreach(array_keys(get_defined_vars()) as $__v) $__refs[$__v] =& $$__v;
218	309	do_action('ws_plugin__s2member_during_ms_validate_user_signup', get_defined_vars());
219	310	unset($__refs, $__v); // Housekeeping.
220	311	}