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themekey_validators.inc in ThemeKey 7.2

Same filename and directory in other branches
  1. 6.4 themekey_validators.inc
  2. 6.2 themekey_validators.inc
  3. 6.3 themekey_validators.inc
  4. 7.3 themekey_validators.inc
  5. 7 themekey_validators.inc

Provides set of validators which can be used to validate ThemeKey Theme Switching Rules.

@author Markus Kalkbrenner | bio.logis GmbH

@author Carsten Müller | Cocomore AG

See also

themekey_admin.inc

http://drupal.org/user/124705

http://drupal.org/user/124707

File

themekey_validators.inc
View source 
<?php

/**
 * @file
 * Provides set of validators which can be used to validate
 * ThemeKey Theme Switching Rules.
 * @see themekey_admin.inc
 *
 * @author Markus Kalkbrenner | bio.logis GmbH
 *   @see http://drupal.org/user/124705
 *
 * @author Carsten Müller | Cocomore AG
 *   @see http://drupal.org/user/124707
 */

/**
 * Validates a Theme Switching Rule.
 * Allowed Operators: "=", "!"
 * Allowed values: "true", "false" as string
 *
 *
 * @param $rule
 *   A Theme Switching Rule as associative array:
 *   - property: ThemeKey property as string (e.g., "drupal:path")
 *   - wildcard: optional string, only used if property is "drupal:path:wildcard"
 *   - operator: ThemeKey operator as string ("=", "!", "*", "!*", "<", "<=", ">", ">=", "~", "!~")
 *   - value: ThemeKey property value as string
 *
 * @return
 *   An associative array of errors:
 *   - property: translated error message as string
 *     describing a problem with the property
 *   - wildcard: translated error message as string
 *     describing a problem with the wildcard
 *   - operator: translated error message as string
 *     describing a problem with the operator
 *   - value: translated error message as string
 *     describing a problem with the value
 *   If no errors detected the array is empty.
 */
function themekey_validator_string_boolean($rule) {
  $errors = array();
  switch ($rule['operator']) {
    case '=':
    case '!':
      if ('true' !== $rule['value'] && 'false' !== $rule['value']) {
        $errors['value'] = t('Possible values are "true" and "false"');
      }
      break;
    default:
      $errors['operator'] = t('Possible operators are "=" and "!"');
  }
  return $errors;
}

/**
 * Validates a Theme Switching Rule.
 * Allowed Operators: "=", "!"
 * Allowed values: "1", "0"
 *
 *
 * @param $rule
 *   A Theme Switching Rule as associative array:
 *   - property: ThemeKey property as string (e.g., "drupal:path")
 *   - wildcard: optional string, only used if property is "drupal:path:wildcard"
 *   - operator: ThemeKey operator as string ("=", "!", "*", "!*", "<", "<=", ">", ">=", "~", "!~")
 *   - value: ThemeKey property value as string
 *
 * @return
 *   An associative array of errors:
 *   - property: translated error message as string
 *     describing a problem with the property
 *   - wildcard: translated error message as string
 *     describing a problem with the wildcard
 *   - operator: translated error message as string
 *     describing a problem with the operator
 *   - value: translated error message as string
 *     describing a problem with the value
 *   If no errors detected the array is empty.
 */
function themekey_validator_nummeric_boolean($rule) {
  $errors = array();
  switch ($rule['operator']) {
    case '=':
    case '!':
      if (!ctype_digit($rule['value']) || 1 < $rule['value']) {
        $errors['value'] = t('Possible values are "0" and "1"');
      }
      break;
    default:
      $errors['operator'] = t('Possible operators are "=" and "!"');
  }
  return $errors;
}

/**
 * Validates a Theme Switching Rule.
 * Allowed Operators: "=", "!", "<", "<=", ">", ">="
 * Allowed values: string of digits (numbers)
 *
 *
 * @param $rule
 *   A Theme Switching Rule as associative array:
 *   - property: ThemeKey property as string (e.g., "drupal:path")
 *   - wildcard: optional string, only used if property is "drupal:path:wildcard"
 *   - operator: ThemeKey operator as string ("=", "!", "*", "!*", "<", "<=", ">", ">=", "~", "!~")
 *   - value: ThemeKey property value as string
 *
 * @return
 *   An associative array of errors:
 *   - property: translated error message as string
 *     describing a problem with the property
 *   - wildcard: translated error message as string
 *     describing a problem with the wildcard
 *   - operator: translated error message as string
 *     describing a problem with the operator
 *   - value: translated error message as string
 *     describing a problem with the value
 *   If no errors detected the array is empty.
 */
function themekey_validator_ctype_digit($rule) {
  $errors = array();
  switch ($rule['operator']) {
    case '~':
    case '!~':
      $errors['operator'] = t('Possible operators are "=", "!", "*", "!*", <", "<=", ">" and ">="');
      break;
  }
  if (!ctype_digit($rule['value'])) {
    $errors['value'] = t('Value must be a number');
  }
  return $errors;
}

/**
 * Validates a Theme Switching Rule.
 * Allowed Operators: any
 * Allowed values:
 * - configured Drupal language as string or 'und' if operator is "="
 * - valid regular expression if operator is "~"
 * - any string for different operators
 *
 *
 * @param $rule
 *   A Theme Switching Rule as associative array:
 *   - property: ThemeKey property as string (e.g., "drupal:path")
 *   - wildcard: optional string, only used if property is "drupal:path:wildcard"
 *   - operator: ThemeKey operator as string ("=", "!", "*", "!*", "<", "<=", ">", ">=", "~", "!~")
 *   - value: ThemeKey property value as string
 *
 * @return
 *   An associative array of errors:
 *   - property: translated error message as string
 *     describing a problem with the property
 *   - wildcard: translated error message as string
 *     describing a problem with the wildcard
 *   - operator: translated error message as string
 *     describing a problem with the operator
 *   - value: translated error message as string
 *     describing a problem with the value
 *   If no errors detected the array is empty.
 */
function themekey_validator_language($rule) {
  $errors = array();
  switch ($rule['operator']) {
    case '=':
    case '!':
      $languages = language_list();

      // add 'neutral' to the list of languages
      $languages['neutral'] = TRUE;
      if (!array_key_exists($rule['value'], $languages)) {
        $errors['value'] = t('Possible values are %languages', array(
          '%languages' => '"' . implode('", "', array_keys($languages)) . '"',
        ));
      }
      break;
    case '~':
    case '!~':
      $errors = themekey_validator_regex($rule);
      break;
  }
  return $errors;
}

/**
 * Validates a Theme Switching Rule.
 * Allowed Operators: "<", "<=", ">", ">=" and "~"
 * Allowed values:
 * - valid regular expression if operator is "~"
 * - string formatted like "2009-12-24 23:56:17" for different operators
 *
 *
 * @param $rule
 *   A Theme Switching Rule as associative array:
 *   - property: ThemeKey property as string (e.g. "drupal:path")
 *   - wildcard: optional string, only used if property is "drupal:path:wildcard"
 *   - operator: ThemeKey operator as string ("=", "!", "*", "!*", "<", "<=", ">", ">=", "~", "!~")
 *   - value: ThemeKey property value as string
 *
 * @return
 *   An associative array of errors:
 *   - property: translated error message as string
 *     describing a problem with the property
 *   - wildcard: translated error message as string
 *     describing a problem with the wildcard
 *   - operator: translated error message as string
 *     describing a problem with the operator
 *   - value: translated error message as string
 *     describing a problem with the value
 *   If no errors detected the array is empty.
 */
function themekey_validator_date_time($rule) {
  $errors = array();
  switch ($rule['operator']) {
    case '=':
    case '!':

      // It seems senseless to switch a theme for one second
      $errors['operator'] = t('Possible operators are "*", "!*", "<", "<=", ">", ">=", "~" and "!~"');
      break;
    case '~':
    case '!~':
      $errors = themekey_validator_regex($rule);
      break;
    case '*':
    case '!*':
      if (!preg_match("/^[\\d\\- :]+\$/", $rule['value'])) {
        $errors['value'] = t("Value isn't suitable for checks against dates formatted like \"2009-12-24 23:56:17\"");
      }
      break;
    default:
      if (!preg_match("/^[0-9]{4}[0-9\\- :]*\$/", $rule['value'])) {
        $errors['value'] = t("Value isn't suitable for checks against dates formatted like \"2009-12-24 23:56:17\"");
      }
  }
  return $errors;
}

/**
 * Validates a Theme Switching Rule.
 * Allowed Operators: any
 * Allowed values:
 * - valid regular expression if operator is "~"
 * - a valid date like "2009-12-24" if operator is "=" or "!"
 * - fragment of a date which contains at least the year as four digits
 *   for different operators
 *
 *
 * @param $rule
 *   A Theme Switching Rule as associative array:
 *   - property: ThemeKey property as string (e.g., "drupal:path")
 *   - wildcard: optional string, only used if property is "drupal:path:wildcard"
 *   - operator: ThemeKey operator as string ("=", "!", "*", "!*", "<", "<=", ">", ">=", "~", "!~")
 *   - value: ThemeKey property value as string
 *
 * @return
 *   An associative array of errors:
 *   - property: translated error message as string
 *     describing a problem with the property
 *   - wildcard: translated error message as string
 *     describing a problem with the wildcard
 *   - operator: translated error message as string
 *     describing a problem with the operator
 *   - value: translated error message as string
 *     describing a problem with the value
 *   If no errors detected the array is empty.
 */
function themekey_validator_date($rule) {
  $errors = array();
  switch ($rule['operator']) {
    case '=':
    case '!':
      if (!preg_match("/^[0-9]{4}-[0-1]{1}[0-9]{1}-[0-3]{1}[0-9]{1}\$/", $rule['value'])) {
        $errors['value'] = t('Not a valid date string. Format should look like "2009-12-24"');
      }
      break;
    case '~':
    case '!~':
      $errors = themekey_validator_regex($rule);
      break;
    case '*':
    case '!*':
      if (!preg_match("/^[\\d\\-]+\$/", $rule['value'])) {
        $errors['value'] = t("Value isn't suitable for checks against dates formatted like \"2009-12-24\"");
      }
      break;
    default:
      if (!preg_match("/^[0-9]{4}[0-9\\-]*\$/", $rule['value'])) {
        $errors['value'] = t("Value isn't suitable for checks against dates formatted like \"2009-12-24\"");
      }
  }
  return $errors;
}

/**
 * Validates a Theme Switching Rule.
 * Allowed Operators: any
 * Allowed values:
 * - valid regular expression if operator is "~"
 * - a valid time like "23:16:56" if operator is "=" or "!"
 * - fragment of a time which contains at least the hour as two digits
 *   for different operators
 *
 *
 * @param $rule
 *   A Theme Switching Rule as associative array:
 *   - property: ThemeKey property as string (e.g., "drupal:path")
 *   - wildcard: optional string, only used if property is "drupal:path:wildcard"
 *   - operator: ThemeKey operator as string ("=", "!", "*", "!*", "<", "<=", ">", ">=", "~", "!~")
 *   - value: ThemeKey property value as string
 *
 * @return
 *   An associative array of errors:
 *   - property: translated error message as string
 *     describing a problem with the property
 *   - wildcard: translated error message as string
 *     describing a problem with the wildcard
 *   - operator: translated error message as string
 *     describing a problem with the operator
 *   - value: translated error message as string
 *     describing a problem with the value
 *   If no errors detected the array is empty.
 */
function themekey_validator_time($rule) {
  $errors = array();
  switch ($rule['operator']) {
    case '=':
    case '!':
      if (!preg_match("/^[0-2][0-9]:[0-5][0-9]:[0-5][0-9]\$/", $rule['value'])) {
        $errors['value'] = t('Not a valid date string. Format should look like "23:16:56"');
      }
      break;
    case '~':
    case '!~':
      $errors = themekey_validator_regex($rule);
      break;
    case '*':
    case '!*':
      if (!preg_match("/^[\\d:]+\$/", $rule['value'])) {
        $errors['value'] = t("Value isn't suitable for checks against times formatted like \"23:56:17\"");
      }
      break;
    default:
      if (!preg_match("/^[0-2][0-9][0-9:]*\$/", $rule['value'])) {
        $errors['value'] = t("Value isn't suitable for checks against times formatted like \"23:16:56\"");
      }
  }
  return $errors;
}

/**
 * Validates a Theme Switching Rule.
 * Allowed Operators: any
 * Allowed values:
 * - valid regular expression if operator is "~"
 * - an existing content type if operator is "=" or "!"
 * - must contain only lowercase letters, numbers, and underscores
 *   for different operators
 *
 *
 * @param $rule
 *   A Theme Switching Rule as associative array:
 *   - property: ThemeKey property as string (e.g., "drupal:path")
 *   - wildcard: optional string, only used if property is "drupal:path:wildcard"
 *   - operator: ThemeKey operator as string ("=", "!", "*", "!*", "<", "<=", ">", ">=", "~", "!~")
 *   - value: ThemeKey property value as string
 *
 * @return
 *   An associative array of errors:
 *   - property: translated error message as string
 *     describing a problem with the property
 *   - wildcard: translated error message as string
 *     describing a problem with the wildcard
 *   - operator: translated error message as string
 *     describing a problem with the operator
 *   - value: translated error message as string
 *     describing a problem with the value
 *   If no errors detected the array is empty.
 */
function themekey_validator_node_type($rule) {
  $errors = array();
  switch ($rule['operator']) {
    case '=':
    case '!':
      $node_types = node_type_get_types();
      if (!array_key_exists($rule['value'], $node_types)) {
        $errors['value'] = t('Possible values are %node_types', array(
          '%node_types' => '"' . implode('", "', array_keys($node_types)) . '"',
        ));
      }
      break;
    case '~':
    case '!~':
      $errors = themekey_validator_regex($rule);
      break;
    default:
      if (!preg_match("/^[0-9a-z_]+\$/", $rule['value'])) {
        $errors['value'] = t("Value isn't suitable. It can only contain lowercase letters, numbers, and underscores");
      }
  }
  return $errors;
}

/**
 * Validates a Theme Switching Rule.
 * Allowed Operators: any
 * Allowed values:
 * - valid regular expression if operator is "~"
 * - must contain only lowercase letters, numbers, and hyphens
 *   for different operators
 *
 *
 * @param $rule
 *   A Theme Switching Rule as associative array:
 *   - property: ThemeKey property as string (e.g., "drupal:path")
 *   - wildcard: optional string, only used if property is "drupal:path:wildcard"
 *   - operator: ThemeKey operator as string ("=", "!", "*", "!*", "<", "<=", ">", ">=", "~", "!~")
 *   - value: ThemeKey property value as string
 *
 * @return
 *   An associative array of errors:
 *   - property: translated error message as string
 *     describing a problem with the property
 *   - wildcard: translated error message as string
 *     describing a problem with the wildcard
 *   - operator: translated error message as string
 *     describing a problem with the operator
 *   - value: translated error message as string
 *     describing a problem with the value
 *   If no errors detected the array is empty.
 */
function themekey_validator_http_host($rule) {
  $errors = array();
  switch ($rule['operator']) {
    case '~':
    case '!~':
      $errors = themekey_validator_regex($rule);
      break;
    default:
      if (!preg_match("/^[0-9a-z\\-.]+\$/", $rule['value'])) {
        $errors['value'] = t("Value isn't suitable. It can only contain lowercase letters, numbers, and hyphens");
      }
  }
  return $errors;
}

/**
 * Validates a Theme Switching Rule.
 * Allowed Operators: all
 * Allowed values: any string without whitespace
 *
 *
 * @param $rule
 *   A Theme Switching Rule as associative array:
 *   - property: ThemeKey property as string (e.g., "drupal:path")
 *   - wildcard: optional string, only used if property is "drupal:path:wildcard"
 *   - operator: ThemeKey operator as string ("=", "!", "*", "!*", "<", "<=", ">", ">=", "~", "!~")
 *   - value: ThemeKey property value as string
 *
 * @return
 *   An associative array of errors:
 *   - property: translated error message as string
 *     describing a problem with the property
 *   - wildcard: translated error message as string
 *     describing a problem with the wildcard
 *   - operator: translated error message as string
 *     describing a problem with the operator
 *   - value: translated error message as string
 *     describing a problem with the value
 *   If no errors detected the array is empty.
 */
function themekey_validator_no_whitespace($rule) {
  $errors = array();
  if (preg_match("/\\s/", $rule['value'])) {
    $errors['value'] = t('Value must not contain whitespace characters');
  }
  return $errors;
}

/**
 * Validates a Theme Switching Rule.
 * Allowed Operators: any
 * Allowed wildcards: any string without whitespace and not starting with "#" or "%"
 *
 *
 * @param $rule
 *   A Theme Switching Rule as associative array:
 *   - property: ThemeKey property as string (e.g., "drupal:path")
 *   - wildcard: optional string, only used if property is "drupal:path:wildcard"
 *   - operator: ThemeKey operator as string ("=", "!", "*", "!*", "<", "<=", ">", ">=", "~", "!~")
 *   - value: ThemeKey property value as string
 *
 * @return
 *   An associative array of errors:
 *   - property: translated error message as string
 *     describing a problem with the property
 *   - wildcard: translated error message as string
 *     describing a problem with the wildcard
 *   - operator: translated error message as string
 *     describing a problem with the operator
 *   - value: translated error message as string
 *     describing a problem with the value
 *   If no errors detected the array is empty.
 */
function themekey_validator_wildcard($rule) {
  $errors = themekey_validator_no_whitespace($rule);
  if (preg_match("/^[#%]/", $rule['wildcard'])) {
    $errors['wildcard'] = t('Wildcard must not start with type identifier "#" or "%" at this point');
  }
  elseif (preg_match("/\\s/", $rule['wildcard'])) {
    $errors['wildcard'] = t('Wildcard must not contain whitespace characters');
  }
  return $errors;
}

/**
 * Validates a Theme Switching Rule.
 * Allowed Operators: "~"
 * Allowed values: valid regular expression
 *
 * @see http://php.net/manual/en/pcre.pattern.php
 *
 *
 * @param $rule
 *   A Theme Switching Rule as associative array:
 *   - property: ThemeKey property as string (e.g., "drupal:path")
 *   - wildcard: optional string, only used if property is "drupal:path:wildcard"
 *   - operator: ThemeKey operator as string ("=", "!", "*", "!*", "<", "<=", ">", ">=", "~", "!~")
 *   - value: ThemeKey property value as string
 *
 * @return
 *   An associative array of errors:
 *   - property: translated error message as string
 *     describing a problem with the property
 *   - wildcard: translated error message as string
 *     describing a problem with the wildcard
 *   - operator: translated error message as string
 *     describing a problem with the operator
 *   - value: translated error message as string
 *     describing a problem with the value
 *   If no errors detected the array is empty.
 */
function themekey_validator_regex($rule) {
  $errors = array();
  switch ($rule['operator']) {
    case '~':
    case '!~':
      if (FALSE === @preg_match($rule['value'], 'dummy')) {
        $errors['value'] = t('Regular expression seems to be malformed. See !link for details', array(
          '!link' => l(t('PHP Manual'), 'http://php.net/manual/en/pcre.pattern.php'),
        ));
      }
      break;
    default:
      $errors['operator'] = t('The only possible operators are "~" and "!~"');
      break;
  }
  return $errors;
}

/**
 * @file
 * Provides set of validators which could be used to validate
 * ThemeKey Theme Switching Rules.
 * @see themekey_admin.inc
 *
 * @author Markus Kalkbrenner | bio.logis GmbH
 *   @see http://drupal.org/user/124705
 *
 * @author Carsten Müller | Cocomore AG
 *   @see http://drupal.org/user/124707
 */

/**
 * Validates a Theme Switching Rule.
 * Allowed Operators: "=", "!"
 * Allowed values: paths without whitespace
 *
 *
 * @param $rule
 *   A Theme Switching Rule as associative array:
 *   - property: ThemeKey property as string (e.g., "drupal:path")
 *   - wildcard: optional string, only used if property is "drupal:path:wildcard"
 *   - operator: ThemeKey operator as string ("=", "!", "*", "!*", "<", "<=", ">", ">=", "~", "!~")
 *   - value: ThemeKey property value as string
 *
 * @return
 *   An associative array of errors:
 *   - property: translated error message as string
 *     describing a problem with the property
 *   - wildcard: translated error message as string
 *     describing a problem with the wildcard
 *   - operator: translated error message as string
 *     describing a problem with the operator
 *   - value: translated error message as string
 *     describing a problem with the value
 *   If no errors detected the array is empty.
 */
function themekey_validator_drupal_path($rule) {
  $errors = themekey_validator_no_whitespace($rule);
  switch ($rule['operator']) {
    case '=':
    case '!':
      if (strpos($rule['value'], '/') === 0) {
        $errors['value'] = t('A Drupal path must not start with "/"');
      }
      if (preg_match("@[^/][%#]@", $rule['value'])) {
        $errors['value'] = t('A wildcard can only be used to replace part(s) of the path, but not for parts of a word');
      }
      if (strpos($rule['value'], '?') !== FALSE) {
        $errors['value'] = t('Query strings will be stripped before a Drupal path is processed. Maybe you want to chain drupal:path and system:query_string or system:query_param (both provided by additional module ThemeKey Properties).');
      }
      break;
    default:
      $errors['operator'] = t('Possible operators are "=" and "!"');
  }
  return $errors;
}

/**
 * Validates a Theme Switching Rule.
 * Allowed Operators: any
 * Allowed values:
 * - valid regular expression if operator is "~"
 * - a valid IPv4 address like "123.123.123.123" if operator is "=" or "!"
 * - fragment of an IPv4 address which contains at least one digit
 *   for different operators
 *
 *
 * @param $rule
 *   A Theme Switching Rule as associative array:
 *   - property: ThemeKey property as string (e.g., "drupal:path")
 *   - wildcard: optional string, only used if property is "drupal:path:wildcard"
 *   - operator: ThemeKey operator as string ("=", "!", "*", "!*", "<", "<=", ">", ">=", "~", "!~")
 *   - value: ThemeKey property value as string
 *
 * @return
 *   An associative array of errors:
 *   - property: translated error message as string
 *     describing a problem with the property
 *   - wildcard: translated error message as string
 *     describing a problem with the wildcard
 *   - operator: translated error message as string
 *     describing a problem with the operator
 *   - value: translated error message as string
 *     describing a problem with the value
 *   If no errors detected the array is empty.
 */
function themekey_validator_ip_address($rule) {
  $errors = array();
  switch ($rule['operator']) {
    case '=':
    case '!':

      // TODO add for support IPv6
      // TODO improve regex for IPv4
      if (!preg_match("/^[0-9]{1,3}\\.[0-9]{1,3}\\.[0-9]{1,3}\\.[0-9]{1,3}\$/", $rule['value'])) {
        $errors['value'] = t('Not a valid IPv4 address. Format should look like "123.123.123.123"');
      }
      break;
    case '~':
    case '!~':
      $errors = themekey_validator_regex($rule);
      break;
    default:

      // TODO add for support IPv6
      // TODO improve regex for IPv4
      if (!preg_match("/^[1-2][0-9\\.]*\$/", $rule['value'])) {
        $errors['value'] = t("Value isn't suitable for checks against dates formatted like \"123.123.123.123\"");
      }
      break;
  }
  return $errors;
}

/**
 * Validates a Theme Switching Rule.
 * Allowed Operators: "=", "!", "~"
 * Allowed values:
 * - valid regular expression if operator is "~"
 * - a valid Drupal role if operator is "=" or "!"
 *
 *
 * @param $rule
 *   A Theme Switching Rule as associative array:
 *   - property: ThemeKey property as string (e.g., "drupal:path")
 *   - wildcard: optional string, only used if property is "drupal:path:wildcard"
 *   - operator: ThemeKey operator as string ("=", "!", "*", "!*", "<", "<=", ">", ">=", "~", "!~")
 *   - value: ThemeKey property value as string
 *
 * @return
 *   An associative array of errors:
 *   - property: translated error message as string
 *     describing a problem with the property
 *   - wildcard: translated error message as string
 *     describing a problem with the wildcard
 *   - operator: translated error message as string
 *     describing a problem with the operator
 *   - value: translated error message as string
 *     describing a problem with the value
 *   If no errors detected the array is empty.
 */
function themekey_validator_role($rule) {
  $errors = array();
  switch ($rule['operator']) {
    case '=':
    case '!':
      $roles = array();
      $result = db_select('role', 'r')
        ->fields('r')
        ->orderBy('name', 'ASC')
        ->execute();
      foreach ($result as $role) {
        $roles[$role->rid] = $role->name;
      }
      if (!in_array($rule['value'], $roles)) {
        $errors['value'] = t('The entered user role %value is not valid. Possible roles are "%roles".', array(
          '%value' => $rule['value'],
          '%roles' => implode('", "', $roles),
        ));
      }
      break;
    case '~':
    case '!~':
      $errors = themekey_validator_regex($rule);
      break;
    default:
      $errors['operator'] = t('Possible operators are "=", "!", "*", "!*", "~", "!~"');
      break;
  }
  return $errors;
}

/**
 * Validates a Theme Switching Rule.
 * Allowed Operators: "=", "!"
 * Allowed values:
 * - a three letter day String if operator is "=" or "!"
 *
 *
 * @param $rule
 *   A Theme Switching Rule as associative array:
 *   - property: ThemeKey property as string (e.g., "drupal:path")
 *   - wildcard: optional string, only used if property is "drupal:path:wildcard"
 *   - operator: ThemeKey operator as string ("=", "!", "*", "!*", "<", "<=", ">", ">=", "~", "!~")
 *   - value: ThemeKey property value as string
 *
 * @return
 *   An associative array of errors:
 *   - property: translated error message as string
 *     describing a problem with the property
 *   - wildcard: translated error message as string
 *     describing a problem with the wildcard
 *   - operator: translated error message as string
 *     describing a problem with the operator
 *   - value: translated error message as string
 *     describing a problem with the value
 *   If no errors detected the array is empty.
 */
function themekey_validator_day_of_week($rule) {
  static $days_of_week = array(
    'Mon',
    'Tue',
    'Wed',
    'Thu',
    'Fri',
    'Sat',
    'Sun',
  );
  $errors = array();
  switch ($rule['operator']) {
    case '=':
    case '!':
      if (!in_array($rule['value'], $days_of_week)) {
        $errors['value'] = t('The day %value is not valid. Possible days are "%days".', array(
          '%value' => $rule['value'],
          '%days' => implode('", "', $days_of_week),
        ));
      }
      break;
    default:
      $errors['operator'] = t('Possible operators are "=" and "!"');
      break;
  }
  return $errors;
}

/**
* Validates a Theme Switching Rule.
* Allowed Operators: "=", "!"
* Allowed values:
* - a three letter day string if operator is "=" or "!"
*
*
* @param $rule
*   A Theme Switching Rule as associative array:
*   - property: ThemeKey property as string (e.g., "drupal:path")
*   - wildcard: optional string, only used if property is "drupal:path:wildcard"
*   - operator: ThemeKey operator as string ("=", "!", "*", "!*", "<", "<=", ">", ">=", "~", "!~")
*   - value: ThemeKey property value as string
*
* @return
*   An associative array of errors:
*   - property: translated error message as string
*     describing a problem with the property
*   - wildcard: translated error message as string
*     describing a problem with the wildcard
*   - operator: translated error message as string
*     describing a problem with the operator
*   - value: translated error message as string
*     describing a problem with the value
*   If no errors detected the array is empty.
*/
function themekey_validator_month($rule) {
  static $months = array(
    'Jan',
    'Feb',
    'Mar',
    'Apr',
    'May',
    'Jun',
    'Jul',
    'Aug',
    'Sep',
    'Oct',
    'Nov',
    'Dec',
  );
  $errors = array();
  switch ($rule['operator']) {
    case '=':
    case '!':
      if (!in_array($rule['value'], $months)) {
        $errors['value'] = t('The month %value is not valid. Possible months are "%months".', array(
          '%value' => $rule['value'],
          '%months' => implode('", "', $months),
        ));
      }
      break;
    default:
      $errors['operator'] = t('Possible operators are "=" and "!"');
      break;
  }
  return $errors;
}

/**
* Validates a Theme Switching Rule.
* Allowed Operators: "=", "!", "<", "<=", ">", ">="
* Allowed values:
* - a number between 1 and 31
*
*
* @param $rule
*   A Theme Switching Rule as associative array:
*   - property: ThemeKey property as string (e.g., "drupal:path")
*   - wildcard: optional string, only used if property is "drupal:path:wildcard"
*   - operator: ThemeKey operator as string ("=", "!", "*", "!*", "<", "<=", ">", ">=", "~", "!~")
*   - value: ThemeKey property value as string
*
* @return
*   An associative array of errors:
*   - property: translated error message as string
*     describing a problem with the property
*   - wildcard: translated error message as string
*     describing a problem with the wildcard
*   - operator: translated error message as string
*     describing a problem with the operator
*   - value: translated error message as string
*     describing a problem with the value
*   If no errors detected the array is empty.
*/
function themekey_validator_day_of_month($rule) {
  $errors = array();
  switch ($rule['operator']) {
    case '=':
    case '!':
    case '<':
    case '<=':
    case '>':
    case '>=':
      if (!ctype_digit($rule['value']) || (string) (int) $rule['value'] !== (string) $rule['value']) {
        $errors['value'] = t('Value must be a number between 1 and 31');
      }
      break;
    default:
      $errors['operator'] = t('Possible operators are "=", "!", "<", "<=", ">", ">="');
      break;
  }
  return $errors;
}

/**
 * Validates a Theme Switching Rule.
 * Allowed Operators: "=", "!"
 * Allowed values:
 * - 'parent', 'child', 'none'
 *
 *
 * @param $rule
 *   A Theme Switching Rule as associative array:
 *   - property: ThemeKey property as string (e.g., "drupal:path")
 *   - wildcard: optional string, only used if property is "drupal:path:wildcard"
 *   - operator: ThemeKey operator as string ("=", "!", "*", "!*", "<", "<=", ">", ">=", "~", "!~")
 *   - value: ThemeKey property value as string
 *
 * @return
 *   An associative array of errors:
 *   - property: translated error message as string
 *     describing a problem with the property
 *   - wildcard: translated error message as string
 *     describing a problem with the wildcard
 *   - operator: translated error message as string
 *     describing a problem with the operator
 *   - value: translated error message as string
 *     describing a problem with the value
 *   If no errors detected the array is empty.
 */
function themekey_validator_overlay_mode($rule) {
  static $modes = array(
    'parent',
    'child',
    'none',
  );
  $errors = array();
  switch ($rule['operator']) {
    case '=':
    case '!':
      if (!in_array($rule['value'], $modes)) {
        $errors['value'] = t('The mode %value is not valid. Possible modes are "%modes".', array(
          '%value' => $rule['value'],
          '%modes' => implode('", "', $modes),
        ));
      }
      break;
    default:
      $errors['operator'] = t('Possible operators are "=" and "!"');
      break;
  }
  return $errors;
}

Functions

Namesort descending Description
themekey_validator_ctype_digit Validates a Theme Switching Rule. Allowed Operators: "=", "!", "<", "<=", ">", ">=" Allowed values: string of digits (numbers)
themekey_validator_date Validates a Theme Switching Rule. Allowed Operators: any Allowed values:
themekey_validator_date_time Validates a Theme Switching Rule. Allowed Operators: "<", "<=", ">", ">=" and "~" Allowed values:
themekey_validator_day_of_month Validates a Theme Switching Rule. Allowed Operators: "=", "!", "<", "<=", ">", ">=" Allowed values:
themekey_validator_day_of_week Validates a Theme Switching Rule. Allowed Operators: "=", "!" Allowed values:
themekey_validator_drupal_path Validates a Theme Switching Rule. Allowed Operators: "=", "!" Allowed values: paths without whitespace
themekey_validator_http_host Validates a Theme Switching Rule. Allowed Operators: any Allowed values:
themekey_validator_ip_address Validates a Theme Switching Rule. Allowed Operators: any Allowed values:
themekey_validator_language Validates a Theme Switching Rule. Allowed Operators: any Allowed values:
themekey_validator_month Validates a Theme Switching Rule. Allowed Operators: "=", "!" Allowed values:
themekey_validator_node_type Validates a Theme Switching Rule. Allowed Operators: any Allowed values:
themekey_validator_no_whitespace Validates a Theme Switching Rule. Allowed Operators: all Allowed values: any string without whitespace
themekey_validator_nummeric_boolean Validates a Theme Switching Rule. Allowed Operators: "=", "!" Allowed values: "1", "0"
themekey_validator_overlay_mode Validates a Theme Switching Rule. Allowed Operators: "=", "!" Allowed values:
themekey_validator_regex Validates a Theme Switching Rule. Allowed Operators: "~" Allowed values: valid regular expression
themekey_validator_role Validates a Theme Switching Rule. Allowed Operators: "=", "!", "~" Allowed values:
themekey_validator_string_boolean Validates a Theme Switching Rule. Allowed Operators: "=", "!" Allowed values: "true", "false" as string
themekey_validator_time Validates a Theme Switching Rule. Allowed Operators: any Allowed values:
themekey_validator_wildcard Validates a Theme Switching Rule. Allowed Operators: any Allowed wildcards: any string without whitespace and not starting with "#" or "%"