148 lines
3.3 KiB
PHP
148 lines
3.3 KiB
PHP
<?
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/*
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$imgPath 源图片路径
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$maxWidth 缩小后最大宽度
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$maxHeight 缩小后最大高度
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$destPath 目标路径，留空则直接输出
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*/
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function resizeImg($imgPath, $maxWidth, $maxHeight, $destPath = '', $isdel = false) {
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if(stristr($imgPath, '.png')) {
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$img = @imagecreatefrompng($imgPath);
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} else {
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$img = @imagecreatefromjpeg($imgPath);
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}
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if(!$img) {
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if($isdel) {
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@unlink($imgPath);
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}
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exit;
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}
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$w = $w_o = imagesx($img);
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$h = $h_o = imagesy($img);
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if($w > $maxWidth) {
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$h = intval($h*$maxWidth/$w);
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$w = $maxWidth;
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}
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if($h > $maxHeight) {
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$w = intval($w*$maxHeight/$h);
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$h = $maxHeight;
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}
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if($w>$w_o || $h>$h_o ) {
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$w = $w_o;
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$h = $h_o;
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}
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//echo $w.",".$h;exit;
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$img2 = imagecreatetruecolor($w, $h);
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imagecopyresampled($img2, $img, 0, 0, 0, 0, $w, $h, $w_o, $h_o);
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if($destPath) {
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imagejpeg($img2, $destPath, 80);
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} else {
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header("Content-Type:image/jpeg");
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imagejpeg($img2, '', 80);
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}
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imagedestroy($img2);
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imagedestroy($img);
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}
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function check_domain($url, $check_domain) {
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$pos1 = strpos($url, "//");
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if($pos1 === false) return false;
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$pos2 = strpos($url, "/", $pos1+2);
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if($pos2 === false) return false;
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$domain = substr($url, $pos1+2, $pos2-$pos1-2);
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$len1 = strlen($domain);
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$len2 = strlen($check_domain);
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$pos = stripos($domain, $check_domain);
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if($pos === false) return false;
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if($len1 == $len2+$pos) return true;
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return false;
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}
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$width = intval($_REQUEST['w']);
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$height = intval($_REQUEST['h']);
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if($width <= 0 || $height <= 0) exit;
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$pic = htmlentities($_REQUEST['p']);
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if(!$pic) exit;
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$root = dirname(__FILE__);
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$destPath = $root."/images/thumb/".md5($pic).".jpg";
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if(is_file($destPath)) {
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header("Content-Type:image/jpeg");
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echo file_get_contents($destPath);
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exit;
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}
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function httpget($url) {
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$c = curl_init($url);
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curl_setopt($c, CURLOPT_RETURNTRANSFER, 1);
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curl_setopt($c, CURLOPT_TIMEOUT, 10);
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curl_setopt($c, CURLOPT_SSL_VERIFYPEER, 0);
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curl_setopt($c, CURLOPT_SSL_VERIFYHOST, 0);
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$s = curl_exec($c);
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curl_close($c);
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return $s;
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}
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$ishttp = false;
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if(substr($pic, 0, 4) == 'http') {
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$domains = array('360buyimg.com', '127.net', 'duifuli.com', 'weibo.com');
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$suc = false;
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foreach($domains as $domain) {
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if(check_domain($pic, $domain)) {
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$suc = true;
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break;
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}
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}
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if(!$suc) die("domain error!");
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if(strstr($pic,'360buyimg') || strstr($pic,'yanxuan')) {
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$pic = str_replace('http://', 'https://', $pic);
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header("Location: ".$pic);
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exit;
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}
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$ext = end(explode('.', $pic));
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if(strlen($ext) > 4) $ext = 'data';
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$filepath = $root."/img_".md5(microtime()."_".$pic).".".$ext;
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$s = httpget($pic);
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//if(!$s && substr($pic, 0, 5) == 'https') {
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// $s = httpget(str_replace('https://', 'http://', $pic));
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//}
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if(!$s) exit;
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file_put_contents($filepath, $s);
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$ishttp = true;
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} else {
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$filepath = $root."/../".$pic;
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if(!is_file($filepath)) {
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$filepath = $root."/../backstage/".$pic;
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if(!is_file($filepath)) exit;
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}
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}
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//echo "vvvvvvvvv";
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//echo $destPath;
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//exit;
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if($width > 5000 && $ishttp) {
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if(stristr($pic, '.png')) {
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header("Content-Type:image/png");
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} else {
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header("Content-Type:image/jpeg");
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}
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rename($filepath, $destPath);
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echo file_get_contents($destPath);
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} else {
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resizeImg($filepath, $width, $height, $destPath, $ishttp?true:false);
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if($ishttp) @unlink($filepath);
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header("Content-Type:image/jpeg");
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echo file_get_contents($destPath);
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}
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