/**
* 根据URL下载文件到指定的文件目录
*
* @param string $src 网络文件地址
* @param string $target 目标文件地址
* @return bool
*/
public static function downloadFile($src, $target, $cookie)
{
$ret = false;
if (self::isWinOs()) {
if (is_null(self::$streamContext)) {
self::$streamContext = self::createStreamContext($cookie);
}
if (self::$streamContext === false) {
return $ret;
}
if ($content = file_get_contents($src, false, self::$streamContext)) {
$target = iconv('utf-8', 'gbk', $target);
$ret = file_put_contents($target, $content);
unset($content);
}
return $ret;
} else {
$agent = '--user-agent="Mozilla/5.0 (Windows NT 6.1; rv:43.0) Gecko/20100101 Firefox/43.0"';
$cookieParam = '--load-cookies=' . $cookie;
exec('wget ' . $agent . ' ' . $cookieParam . ' -t 2 -T 5 "' . $src . '" -O "' . $target . '"', $out, $status);
return file_exists($target) && filesize($target);
}
}
public function storageFile()
{
if (!is_array($this->lectureList)) {
$this->error('列表为空');
}
$this->_loadPreDownloaded();
foreach ($this->lectureList as $chapterKey => $chapterList) {
$chapterDir = $this->_formatDir($chapterKey);
foreach ($chapterList as $sectionKey => $sectionList) {
$sectionDir = $this->_formatDir($sectionKey);
foreach ($sectionList as $item) {
$fileHash = md5($item);
if (in_array($fileHash, array_keys($this->preDownloaded))) {
continue;
}
$fileName = $this->_formatFileName($item);
$dir = $this->lectureDir . '/' . $chapterDir . '/' . $sectionDir . '/';
LibStorage::mkdirs($dir);
if (LibStorage::downloadFile($item, $dir . $fileName, $this->cookie)) {
$this->_saveProgress($fileHash . "\t" . $dir . $fileName . PHP_EOL);
echo '==>file(' . $dir . $fileName . ') DONE' . PHP_EOL;
}
}
}
}
return $this;
}
