function cache_control()
{
$f_xml = new File($this->set_cache_filename('xml'));
$f_img = new File($this->set_cache_filename('img'), true);
$live = $expire = $this->expire * 3600;
$live++;
// AMAZON_NO_IMAGE - $this->items['Height'] = 91; $this->items['Width'] = 69;
// キャッシュが存在している場合
if ($f_xml->has() && $f_xml->isReadable()) {
// 経過秒数
$live = time() - $f_xml->time();
}
// 一度キャッシュを作成した場合、取得できない場合は継続利用されることになる
if ($expire >= $live) {
$xml = $f_xml->get(true);
// read cache file.
if (empty($xml)) {
$this->items['image'] = '';
$this->items['Height'] = 91;
$this->items['Width'] = 69;
return false;
}
$this->obj_xml = simplexml_load_string($xml);
$this->asin = $this->obj_xml->Items->Item->ASIN;
list($URL, $Height, $Width) = $this->get_image_size();
if ($f_img->has()) {
$this->items['image'] = $f_img->filename;
$this->items['Height'] = $Height;
$this->items['Width'] = $Width;
} else {
$this->items['image'] = '';
$this->items['Height'] = 91;
$this->items['Width'] = 69;
}
return true;
}
// 直接読む場合
$url = $this->ecs_url();
$xml = $this->fetch_xml($url);
if (!empty($this->items['Error'])) {
$this->items['image'] = '';
$this->items['Height'] = 91;
$this->items['Width'] = 69;
return false;
}
// ページが読めた場合
$f_xml->set($xml);
// write xml file.
list($URL, $Height, $Width) = $this->get_image_size();
if (empty($URL)) {
$this->items['image'] = '';
$this->items['Height'] = 91;
$this->items['Width'] = 69;
return true;
}
$img = $this->fetch_img((string) $URL);
if (!empty($img)) {
$f_img->set($img);
// Fileクラスの画像書き込みがちゃんと動かない・・・。
//self::file_write($f_img->filename, $img); // write img file.
}
$this->items['image'] = $f_img->filename;
$this->items['Height'] = $Height;
$this->items['Width'] = $Width;
return true;
}
/**
* ファイルのMIMEタイプを取得
*/
public function getMime()
{
// finfo関数の出力を優先
if (function_exists('finfo_file')) {
$finfo = finfo_open(FILEINFO_MIME_TYPE);
$mimetype = finfo_file($finfo, $this->basename);
finfo_close($finfo);
return $mimetype;
}
//return preg_replace("/ [^ ]*/", "", trim(shell_exec('file -bi '.escapeshellcmd($path))));
$f = new File($this->basename);
try {
// @をつけると処理が重いのでtry-catch文を使う
$size = getimagesize($f->getRealPath());
// 画像の場合
switch ($size[2]) {
case IMAGETYPE_BMP:
return 'image/bmp';
case IMAGETYPE_GIF:
return 'image/gif';
case IMAGETYPE_ICO:
return 'image/vnd.microsoft.icon';
case IMAGETYPE_IFF:
return 'image/iff';
case IMAGETYPE_JB2:
return 'image/jbig2';
case IMAGETYPE_JP2:
return 'image/jp2';
case IMAGETYPE_JPC:
return 'image/jpc';
case IMAGETYPE_JPEG:
return 'image/jpeg';
case IMAGETYPE_JPX:
return 'image/jpx';
case IMAGETYPE_PNG:
return 'image/png';
case IMAGETYPE_PSD:
return 'image/psd';
case IMAGETYPE_SWC:
case IMAGETYPE_SWF:
return 'application/x-shockwave-flash';
case IMAGETYPE_TIFF_II:
case IMAGETYPE_TIFF_MM:
return 'image/tiff';
case IMAGETYPE_WBMP:
return 'image/vnd.wap.wbmp';
case IMAGETYPE_XBM:
return 'image/xbm';
}
} catch (Exception $e) {
// 画像でない場合エラーが発生するので例外処理で投げる
}
// mime-type一覧表を取得
$config = new Config(self::ATTACH_CONFIG_PAGE_MIME);
$table = $config->read() ? $config->get('mime-type') : array();
unset($config);
// メモリ節約
foreach ($table as $row) {
$_type = trim($row[0]);
$exts = preg_split('/\\s+|,/', trim($row[1]), -1, PREG_SPLIT_NO_EMPTY);
foreach ($exts as $ext) {
if (preg_match('/\\.' . $ext . '$/i', $this->filename)) {
return $_type;
}
}
}
return self::DEFAULT_MIME_TYPE;
}
