source: branches/dev/data/class/GC_MobileImage.php @ 11686

<?php
/**
 * 
 * Copyright(c) 2000-2007 LOCKON CO.,LTD. All Rights Reserved.
 *
 * http://www.lockon.co.jp/
 * 
 *
 *
 * üËö¤Î²èÌ̲òÁüÅ٤ˤ¢¤ï¤»¤Æ²èÁü¤òÊÑ´¹¤¹¤ë
 */

define("MOBILE_IMAGE_INC_PATH", realpath(dirname( __FILE__)) . "/../include");
require_once(MOBILE_IMAGE_INC_PATH . "/image_converter.inc");

/**
 * ²èÁüÊÑ´¹¥¯¥é¥¹
 */
class GC_MobileImage {
    /**
     * ²èÁü¤òüËö¤Î²òÁüÅ٤˹ç¤ï¤»¤ÆÊÑ´¹¤¹¤ë
     * output buffering ÍÑ¥³¡¼¥ë¥Ð¥Ã¥¯´Ø¿ô
     *
     * @param string ÆþÎÏ
     * @return string ½ÐÎÏ
     */
    function handler($buffer) {

        // üËö¾ðÊó¤ò¼èÆÀ¤¹¤ë
        $carrier = GC_MobileUserAgent::getCarrier();
        $model   = GC_MobileUserAgent::getModel();

        // ·ÈÂÓÅÅÏäξì¹ç¤Î¤ß½èÍý¤ò¹Ô¤¦
        if ($carrier !== FALSE) {

            // HTMLÃæ¤ÎIMG¥¿¥°¤ò¼èÆÀ¤¹¤ë
            $pattern = '/<img\s+src=[\'"]([^>"]+)[\'"]\s*\/*>/i';
            $result = preg_match_all($pattern, $buffer, $images);

            // üËö¤Î¾ðÊó¤ò¼èÆÀ¤¹¤ë
            $fp = fopen(MOBILE_IMAGE_INC_PATH . "/mobile_image_map_$carrier.csv", "r");
            while (($data = fgetcsv($fp, 1000, ",")) !== FALSE) {
                if ($data[1] == $model || $data[1] == '*') {
                    $cacheSize     = $data[2];
                    $imageFileSize = $data[7];
                    $imageType     = $data[6];
                    $imageWidth    = $data[5];
                    break;
                }
            }
            fclose($fp);

            // docomo¤Èsoftbank¤Î¾ì¹ç¤Ï²èÁü¥Õ¥¡¥¤¥ë°ì¤Ä¤ËÍøÍѲÄǽ¤Ê¥µ¥¤¥º¤Î¾å¸Â¤ò·×»»¤¹¤ë
            // au¤ÏHTML¤Îbyte¿ô¾å¸Â¤Ë²èÁü¥Õ¥¡¥¤¥ë¥µ¥¤¥º¤¬´Þ¤Þ¤ì¤Ê¤¤¤Î¤ÇimageFileSize¤Î¤Þ¤Þ¡£
            if ($carrier == "docomo" or $carrier == "softbank") {
                // ·×»»¼°¡§(ÍøÍÑüËö¤Çɽ¼¨²Äǽ¤Êcache¥µ¥¤¥º - HTML¤Î¥Ð¥¤¥È¿ô - ÊÑ´¹¸å¤Î²èÁü̾¤Î¥Ð¥¤¥È¿ô(ÌÜ°ÂÃÍ) ) / HTMLÃæ¤Î²èÁü¿ô
                $temp_imagefilesize = ($cacheSize - strlen($buffer) - (140 * $result) ) / $result;
                // ·×»»·ë²Ì¤¬Ã¼Ëö¤Îɽ¼¨²Äǽ¥Õ¥¡¥¤¥ë¥µ¥¤¥º¾å¸Â¤è¤ê¾®¤µ¤¤¾ì¹ç¤Ï·×»»·ë²Ì¤ÎÃͤòÍ­¸ú¤Ë¤¹¤ë
                if ($temp_imagefilesize < $imageFileSize) {
                    $imageFileSize = $temp_imagefilesize;
                }
            }

            // ²èÁüÊÑ´¹¤Î¾ðÊó¤ò¥»¥Ã¥È¤¹¤ë
            $imageConverter = New ImageConverter();
            $imageConverter->setOutputDir(MOBILE_IMAGE_DIR);
            $imageConverter->setImageType($imageType);
            $imageConverter->setImageWidth($imageWidth);
            $imageConverter->setFileSize($imageFileSize);

            // HTMLÃæ¤ÎIMG¥¿¥°¤òÊÑ´¹¸å¤Î¥Õ¥¡¥¤¥ë¥Ñ¥¹¤ËÃÖ´¹¤¹¤ë
            foreach ($images[1] as $key => $value) {
                $converted = $imageConverter->execute(preg_replace('|^' . PC_URL_DIR . '|', PC_HTML_PATH, $value));
                if (isset($converted['outputImageName'])) {
                    $buffer = str_replace($value, MOBILE_IMAGE_URL . '/' . $converted['outputImageName'], $buffer);
                } else {
                    $buffer = str_replace($images[0][$key], '<!--No image-->', $buffer);
                }
            }
        }
        return $buffer;
    }
}
?>