general.php

每个RFC 3261信息头有一个相应的存取标识. 但是,许多信息头拥有同样的形式。 例如。To和From的信息头都是由显示名和一个URI组成。 To和From信息头用来管理与处理NameAddr实例的

    $group['read']    = ($mode & 00040) ? 'r' : '-';
    $group['write']   = ($mode & 00020) ? 'w' : '-';
    $group['execute'] = ($mode & 00010) ? 'x' : '-';
    $world['read']    = ($mode & 00004) ? 'r' : '-';
    $world['write']   = ($mode & 00002) ? 'w' : '-';
    $world['execute'] = ($mode & 00001) ? 'x' : '-';

// adjust for SUID, SGID and sticky bit
    if ($mode & 0x800 ) $owner['execute'] = ($owner['execute'] == 'x') ? 's' : 'S';
    if ($mode & 0x400 ) $group['execute'] = ($group['execute'] == 'x') ? 's' : 'S';
    if ($mode & 0x200 ) $world['execute'] = ($world['execute'] == 'x') ? 't' : 'T';

    return $type .
           $owner['read'] . $owner['write'] . $owner['execute'] .
           $group['read'] . $group['write'] . $group['execute'] .
           $world['read'] . $world['write'] . $world['execute'];
  }

  function tep_remove($source) {
    global $messageStack, $tep_remove_error;

    if (isset($tep_remove_error)) $tep_remove_error = false;

    if (is_dir($source)) {
      $dir = dir($source);
      while ($file = $dir->read()) {
        if ( ($file != '.') && ($file != '..') ) {
          if (is_writeable($source . '/' . $file)) {
            tep_remove($source . '/' . $file);
          } else {
            $messageStack->add(sprintf(ERROR_FILE_NOT_REMOVEABLE, $source . '/' . $file), 'error');
            $tep_remove_error = true;
          }
        }
      }
      $dir->close();

      if (is_writeable($source)) {
        rmdir($source);
      } else {
        $messageStack->add(sprintf(ERROR_DIRECTORY_NOT_REMOVEABLE, $source), 'error');
        $tep_remove_error = true;
      }
    } else {
      if (is_writeable($source)) {
        unlink($source);
      } else {
        $messageStack->add(sprintf(ERROR_FILE_NOT_REMOVEABLE, $source), 'error');
        $tep_remove_error = true;
      }
    }
  }

////
// Output the tax percentage with optional padded decimals
  function tep_display_tax_value($value, $padding = TAX_DECIMAL_PLACES) {
    if (strpos($value, '.')) {
      $loop = true;
      while ($loop) {
        if (substr($value, -1) == '0') {
          $value = substr($value, 0, -1);
        } else {
          $loop = false;
          if (substr($value, -1) == '.') {
            $value = substr($value, 0, -1);
          }
        }
      }
    }

    if ($padding > 0) {
      if ($decimal_pos = strpos($value, '.')) {
        $decimals = strlen(substr($value, ($decimal_pos+1)));
        for ($i=$decimals; $i<$padding; $i++) {
          $value .= '0';
        }
      } else {
        $value .= '.';
        for ($i=0; $i<$padding; $i++) {
          $value .= '0';
        }
      }
    }

    return $value;
  }

  function tep_mail($to_name, $to_email_address, $email_subject, $email_text, $from_email_name, $from_email_address) {
    if (SEND_EMAILS != 'true') return false;

    // Instantiate a new mail object
    $message = new email(array('X-Mailer: osCommerce'));

    // Build the text version
    $text = strip_tags($email_text);
    if (EMAIL_USE_HTML == 'true') {
      $message->add_html($email_text, $text);
    } else {
      $message->add_text($text);
    }

    // Send message
    $message->build_message();
    $message->send($to_name, $to_email_address, $from_email_name, $from_email_address, $email_subject);
  }

  function tep_get_tax_class_title($tax_class_id) {
    if ($tax_class_id == '0') {
      return TEXT_NONE;
    } else {
      $classes_query = tep_db_query("select tax_class_title from " . TABLE_TAX_CLASS . " where tax_class_id = '" . (int)$tax_class_id . "'");
      $classes = tep_db_fetch_array($classes_query);

      return $classes['tax_class_title'];
    }
  }

  function tep_banner_image_extension() {
    if (function_exists('imagetypes')) {
      if (imagetypes() & IMG_PNG) {
        return 'png';
      } elseif (imagetypes() & IMG_JPG) {
        return 'jpg';
      } elseif (imagetypes() & IMG_GIF) {
        return 'gif';
      }
    } elseif (function_exists('imagecreatefrompng') && function_exists('imagepng')) {
      return 'png';
    } elseif (function_exists('imagecreatefromjpeg') && function_exists('imagejpeg')) {
      return 'jpg';
    } elseif (function_exists('imagecreatefromgif') && function_exists('imagegif')) {
      return 'gif';
    }

    return false;
  }

////
// Wrapper function for round() for php3 compatibility
  function tep_round($value, $precision) {
    if (PHP_VERSION < 4) {
      $exp = pow(10, $precision);
      return round($value * $exp) / $exp;
    } else {
      return round($value, $precision);
    }
  }

////
// Add tax to a products price
  function tep_add_tax($price, $tax) {
    global $currencies;

    if (DISPLAY_PRICE_WITH_TAX == 'true') {
      return tep_round($price, $currencies->currencies[DEFAULT_CURRENCY]['decimal_places']) + tep_calculate_tax($price, $tax);
    } else {
      return tep_round($price, $currencies->currencies[DEFAULT_CURRENCY]['decimal_places']);
    }
  }

// Calculates Tax rounding the result
  function tep_calculate_tax($price, $tax) {
    global $currencies;

    return tep_round($price * $tax / 100, $currencies->currencies[DEFAULT_CURRENCY]['decimal_places']);
  }

////
// Returns the tax rate for a zone / class
// TABLES: tax_rates, zones_to_geo_zones
  function tep_get_tax_rate($class_id, $country_id = -1, $zone_id = -1) {
    global $customer_zone_id, $customer_country_id;

    if ( ($country_id == -1) && ($zone_id == -1) ) {
      if (!tep_session_is_registered('customer_id')) {
        $country_id = STORE_COUNTRY;
        $zone_id = STORE_ZONE;
      } else {
        $country_id = $customer_country_id;
        $zone_id = $customer_zone_id;
      }
    }

    $tax_query = tep_db_query("select SUM(tax_rate) as tax_rate from " . TABLE_TAX_RATES . " tr left join " . TABLE_ZONES_TO_GEO_ZONES . " za ON tr.tax_zone_id = za.geo_zone_id left join " . TABLE_GEO_ZONES . " tz ON tz.geo_zone_id = tr.tax_zone_id WHERE (za.zone_country_id IS NULL OR za.zone_country_id = '0' OR za.zone_country_id = '" . (int)$country_id . "') AND (za.zone_id IS NULL OR za.zone_id = '0' OR za.zone_id = '" . (int)$zone_id . "') AND tr.tax_class_id = '" . (int)$class_id . "' GROUP BY tr.tax_priority");
    if (tep_db_num_rows($tax_query)) {
      $tax_multiplier = 0;
      while ($tax = tep_db_fetch_array($tax_query)) {
        $tax_multiplier += $tax['tax_rate'];
      }
      return $tax_multiplier;
    } else {
      return 0;
    }
  }

////
// Returns the tax rate for a tax class
// TABLES: tax_rates
  function tep_get_tax_rate_value($class_id) {
    $tax_query = tep_db_query("select SUM(tax_rate) as tax_rate from " . TABLE_TAX_RATES . " where tax_class_id = '" . (int)$class_id . "' group by tax_priority");
    if (tep_db_num_rows($tax_query)) {
      $tax_multiplier = 0;
      while ($tax = tep_db_fetch_array($tax_query)) {
        $tax_multiplier += $tax['tax_rate'];
      }
      return $tax_multiplier;
    } else {
      return 0;
    }
  }

  function tep_call_function($function, $parameter, $object = '') {
    if ($object == '') {
      return call_user_func($function, $parameter);
    } elseif (PHP_VERSION < 4) {
      return call_user_method($function, $object, $parameter);
    } else {
      return call_user_func(array($object, $function), $parameter);
    }
  }

  function tep_get_zone_class_title($zone_class_id) {
    if ($zone_class_id == '0') {
      return TEXT_NONE;
    } else {
      $classes_query = tep_db_query("select geo_zone_name from " . TABLE_GEO_ZONES . " where geo_zone_id = '" . (int)$zone_class_id . "'");
      $classes = tep_db_fetch_array($classes_query);

      return $classes['geo_zone_name'];
    }
  }

  function tep_cfg_pull_down_zone_classes($zone_class_id, $key = '') {
    $name = (($key) ? 'configuration[' . $key . ']' : 'configuration_value');

    $zone_class_array = array(array('id' => '0', 'text' => TEXT_NONE));
    $zone_class_query = tep_db_query("select geo_zone_id, geo_zone_name from " . TABLE_GEO_ZONES . " order by geo_zone_name");
    while ($zone_class = tep_db_fetch_array($zone_class_query)) {
      $zone_class_array[] = array('id' => $zone_class['geo_zone_id'],
                                  'text' => $zone_class['geo_zone_name']);
    }

    return tep_draw_pull_down_menu($name, $zone_class_array, $zone_class_id);
  }

  function tep_cfg_pull_down_order_statuses($order_status_id, $key = '') {
    global $languages_id;

    $name = (($key) ? 'configuration[' . $key . ']' : 'configuration_value');

    $statuses_array = array(array('id' => '0', 'text' => TEXT_DEFAULT));
    $statuses_query = tep_db_query("select orders_status_id, orders_status_name from " . TABLE_ORDERS_STATUS . " where language_id = '" . (int)$languages_id . "' order by orders_status_name");
    while ($statuses = tep_db_fetch_array($statuses_query)) {
      $statuses_array[] = array('id' => $statuses['orders_status_id'],
                                'text' => $statuses['orders_status_name']);
    }

    return tep_draw_pull_down_menu($name, $statuses_array, $order_status_id);
  }

  function tep_get_order_status_name($order_status_id, $language_id = '') {
    global $languages_id;

    if ($order_status_id < 1) return TEXT_DEFAULT;

    if (!is_numeric($language_id)) $language_id = $languages_id;

    $status_query = tep_db_query("select orders_status_name from " . TABLE_ORDERS_STATUS . " where orders_status_id = '" . (int)$order_status_id . "' and language_id = '" . (int)$language_id . "'");
    $status = tep_db_fetch_array($status_query);

    return $status['orders_status_name'];
  }

////
// Return a random value
  function tep_rand($min = null, $max = null) {
    static $seeded;

    if (!$seeded) {
      mt_srand((double)microtime()*1000000);
      $seeded = true;
    }

    if (isset($min) && isset($max)) {
      if ($min >= $max) {
        return $min;
      } else {
        return mt_rand($min, $max);
      }
    } else {
      return mt_rand();
    }
  }

// nl2br() prior PHP 4.2.0 did not convert linefeeds on all OSs (it only converted \n)
  function tep_convert_linefeeds($from, $to, $string) {
    if ((PHP_VERSION < "4.0.5") && is_array($from)) {
      return ereg_replace('(' . implode('|', $from) . ')', $to, $string);
    } else {
      return str_replace($from, $to, $string);
    }
  }

  function tep_string_to_int($string) {
    return (int)$string;
  }

////
// Parse and secure the cPath parameter values
  function tep_parse_category_path($cPath) {
// make sure the category IDs are integers
    $cPath_array = array_map('tep_string_to_int', explode('_', $cPath));

// make sure no duplicate category IDs exist which could lock the server in a loop
    $tmp_array = array();
    $n = sizeof($cPath_array);
    for ($i=0; $i<$n; $i++) {
      if (!in_array($cPath_array[$i], $tmp_array)) {
        $tmp_array[] = $cPath_array[$i];
      }
    }

    return $tmp_array;
  }
?>