linux中tinypng图片压缩的例子-百分百源码网

linux中tinypng图片压缩的例子

发布时间：01/15 来源：浏览：关键词：

TinyPNG一个压缩PNG工具了， TinyPNG为了达到更小的文件大小进行了有损压缩,尽管在质量上有轻微的下降,但裸眼看不出来，下面我们就来看看linux中tinypng图片压缩的例子．

多的一般是图片，图片的压缩比越大，访问页面速度会越快。wordpress下有相关的如WP Smush.it可以用于图片压缩，不过对于压缩比例和保真层度来看，不如tinypng 。其对wordpress也提供了相应的插件，不过免费版每个邮箱用户每月只提供五百个请求的压缩。这里结合其官方API ，做了一个shell版本的小工具，另外根据之前的php上传及tinypng的php API也写了一个web版的工具。

一、shell 版本

通过CURL请求，直接执行请求API URL时：

[root@361way tmp]# curl -i --user api:aSiDFS1VD1UfX7pIPdoDFSvoaYTaAvN --data-binary @delrepo2.png https://api.tinypng.com/shrink

执行结果 HTTP/1.1 100 Continue

HTTP/1.1 201 Created
Cache-Control: no-cache
Compression-Count: 2
Content-Type: application/json; charset=utf-8
Date: Wed, 04 Mar 2015 03:13:34 GMT
Location: https://api.tinypng.com/output/3molv9psquoqou8u.png
Server: Apache/2
Strict-Transport-Security: max-age=31536000
X-Powered-By: Voormedia (voormedia.com/jobs)
Content-Length: 158
Connection: keep-alive
{"input":{"size":10628,"type":"image/png"},"output":{"size":7865,"type":"image/png","ratio":0.74,"url":"https://api.tinypng.com/output/3molv9psquoqou8u.png"}}
其中Location地址为执行后返回压缩后的图片在服务器上存放的地址。最后可以通过wget或curl 将该地址从远程取回来。

以下是写的shell 版，如下：

#!/bin/bash
Help()
{
   cat << EOF
   ====================================================================
   Usage: tinpny.sh input.png output.png
   ====================================================================
EOF
}
if [ $# != 2 ];then
    Help
else
    httpcont=`date +%s`
    url=`curl --silent -i --user api:aSiDFS1VD1UfX7pIPdoDFSvoaY_TaAvN --data-binary @$1 https://api.tinypng.com/shrink |grep Location|awk '{print $2}'| tr -d '＼r'`
    echo $url
    wget $url -O $2
fi

二、php版

可以先参看PHP图片上传程序（完整版），这里使用的是PHP with curl API版，代码如下：

<?php
/******************************************************************************
参数说明:
$max_file_size : 上传文件大小限制, 单位BYTE
$destination_folder : 上传文件路径
$watermark   : 是否附加水印(1为加水印,其他为不加水印);
使用说明:
1. 将PHP.INI文件里面的"extension=php_gd2.dll"一行前面的;号去掉,因为我们要用到GD库;
2. 将extension_dir =改为你的php_gd2.dll所在目录;
******************************************************************************/
//上传文件类型列表
$uptypes=array(
    'image/jpg',
    'image/jpeg',
    'image/png',
    'image/pjpeg',
    'image/gif',
    'image/bmp',
    'image/x-png'
);
$max_file_size=2000000;     //上传文件大小限制, 单位BYTE
$destination_folder="uploadimg/"; //上传文件路径
$watermark=2;      //是否附加水印(1为加水印,其他为不加水印);
$watertype=1;      //水印类型(1为文字,2为图片)
$waterposition=1;     //水印位置(1为左下角,2为右下角,3为左上角,4为右上角,5为居中);
$waterstring="http://www.361way.com/"; //水印字符串
$waterimg="361way.gif";    //水印图片
$imgpreview=1;      //是否生成预览图(1为生成,其他为不生成);
$imgpreviewsize=1/2;    //缩略图比例
?>
<?php
function Compressimg($input,$output)
{
    $key = "aSiDFS1VD1UfX7pIPdoDFSvoaY_TaAvN";
    $request = curl_init();
    curl_setopt_array($request, array(
      CURLOPT_URL => "https://api.tinypng.com/shrink",
      CURLOPT_USERPWD => "api:" . $key,
      CURLOPT_POSTFIELDS => file_get_contents($input),
      CURLOPT_BINARYTRANSFER => true,
      CURLOPT_RETURNTRANSFER => true,
      CURLOPT_HEADER => true,
      /* Uncomment below if you have trouble validating our SSL certificate.
         Download cacert.pem from: http://curl.haxx.se/ca/cacert.pem */
      // CURLOPT_CAINFO => __DIR__ . "/cacert.pem",
      CURLOPT_SSL_VERIFYPEER => true
    ));
    $response = curl_exec($request);
    if (curl_getinfo($request, CURLINFO_HTTP_CODE) === 201) {
      /* Compression was successful, retrieve output from Location header. */
      $headers = substr($response, 0, curl_getinfo($request, CURLINFO_HEADER_SIZE));
      foreach (explode("＼r＼n", $headers) as $header) {
        if (substr($header, 0, 10) === "Location: ") {
          $request = curl_init();
          curl_setopt_array($request, array(
            CURLOPT_URL => substr($header, 10),
            CURLOPT_RETURNTRANSFER => true,
            /* Uncomment below if you have trouble validating our SSL certificate. */
            // CURLOPT_CAINFO => __DIR__ . "/cacert.pem",
            CURLOPT_SSL_VERIFYPEER => true
          ));
          file_put_contents($output, curl_exec($request));
        }
      }
    } else {
        print(curl_error($request));
      /* Something went wrong! */
      print("Compression failed");
    }
}
?>
<html>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<head>
<title>361way图片上传程序</title>
<style type="text/css">

</style>
</head>
<body>
<form enctype="multipart/form-data" method="post" name="upform">
上传文件:
<input name="upfile" type="file">
<input type="submit" value="上传"><br>
允许上传的文件类型为:<?php echo implode(',',$uptypes)?>
</form>
<?php
if ($_SERVER['REQUEST_METHOD'] == 'POST')
{
    if (!is_uploaded_file($_FILES["upfile"][tmp_name]))
    //是否存在文件
    {
         echo "图片不存在!";
         exit;
    }
    $file = $_FILES["upfile"];
    if($max_file_size < $file["size"])
    //检查文件大小
    {
        echo "文件太大!";
        exit;
    }
    if(!in_array($file["type"], $uptypes))
    //检查文件类型
    {
        echo "文件类型不符!".$file["type"];
        exit;
    }
#    if(file_exists($_FILES["upfile"][name]))
#    {
#        echo "文件名已存在";
#    }
    if(!file_exists($destination_folder))
    {
        mkdir($destination_folder);
    }
    $filename=$file["tmp_name"];
    $upfile_name=$file["name"];
    $image_size = getimagesize($filename);
    $pinfo=pathinfo($file["name"]);
    $ftype=$pinfo['extension'];
    $destination = $destination_folder.time().".".$ftype;
    if (file_exists($destination) && $overwrite != true)
    {
        echo "同名文件已经存在了";
        exit;
    }
    if(!move_uploaded_file ($filename, $destination))
    {
        echo "移动文件出错";
        exit;
    }
    $pinfo=pathinfo($destination);
    $fname=$pinfo[basename];
    echo " <font color=red>已经成功上传</font><br>文件名: <font color=blue>".$destination_folder.$fname."</font><br>";
    echo " 宽度:".$image_size[0];
    echo " 长度:".$image_size[1];
    echo "<br> 大小:".$file["size"]." bytes";
    if($watermark==1)
    {
        $iinfo=getimagesize($destination,$iinfo);
        $nimage=imagecreatetruecolor($image_size[0],$image_size[1]);
        $white=imagecolorallocate($nimage,255,255,255);
        $black=imagecolorallocate($nimage,0,0,0);
        $red=imagecolorallocate($nimage,255,0,0);
        imagefill($nimage,0,0,$white);
        switch ($iinfo[2])
        {
            case 1:
            $simage =imagecreatefromgif($destination);
            break;
            case 2:
            $simage =imagecreatefromjpeg($destination);
            break;
            case 3:
            $simage =imagecreatefrompng($destination);
            break;
            case 6:
            $simage =imagecreatefromwbmp($destination);
            break;
            default:
            die("不支持的文件类型");
            exit;
        }
        imagecopy($nimage,$simage,0,0,0,0,$image_size[0],$image_size[1]);
        imagefilledrectangle($nimage,1,$image_size[1]-15,80,$image_size[1],$white);
        switch($watertype)
        {
            case 1:   //加水印字符串
            imagestring($nimage,2,3,$image_size[1]-15,$waterstring,$black);
            break;
            case 2:   //加水印图片
            $simage1 =imagecreatefromgif("361way.gif");
            imagecopy($nimage,$simage1,0,0,0,0,85,15);
            imagedestroy($simage1);
            break;
        }
        switch ($iinfo[2])
        {
            case 1:
            //imagegif($nimage, $destination);
            imagejpeg($nimage, $destination);
            break;
            case 2:
            imagejpeg($nimage, $destination);
            break;
            case 3:
            imagepng($nimage, $destination);
            break;
            case 6:
            imagewbmp($nimage, $destination);
            //imagejpeg($nimage, $destination);
            break;
        }
        //覆盖原上传文件
        imagedestroy($nimage);
        imagedestroy($simage);
    }
    $output=$destination_folder.$upfile_name;
    Compressimg($destination,$output);
    unlink($destination);
    if($imgpreview==1)
    {
    echo "<br>图片预览:<br>";
    echo "<img src=＼"".$output."＼" width=".($image_size[0]*$imgpreviewsize)." height=".($image_size[1]*$imgpreviewsize);
    echo " alt=＼"图片预览:＼r文件名:".$output."＼r上传时间:＼">";
    }
}
?>
</body>
</html>
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