thinkphp改寫的上傳類及縮放水印類
<?php
// +----------------------------------------------------------------------
// | ThinkPHP [ WE CAN DO IT JUST THINK IT ]
// +----------------------------------------------------------------------
// | Copyright (c) 2009 http://thinkphp.cn All rights reserved.
// +----------------------------------------------------------------------
// | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 )
// +----------------------------------------------------------------------
// | Author: liu21st <liu21st@gmail.com>
// +----------------------------------------------------------------------
// $Id$
/**
+------------------------------------------------------------------------------
* 文件上傳類
+------------------------------------------------------------------------------
* @category ORG
* @package ORG
* @subpackage Net
* @author liu21st <liu21st@gmail.com>
* @version $Id$
+------------------------------------------------------------------------------
*/
class UploadFile
{//類定義開始
// 上傳文件的最大值
public $maxSize = -1;
// 是否支持多文件上傳
public $supportMulti = true;
// 容許上傳的文件後綴
// 留空不做後綴檢查
public $allowExts = array();
// 容許上傳的文件類型
// 留空不作檢查
public $allowTypes = array();
// 使用對上傳圖片進行縮略圖處理
public $thumb = true;
// 縮略圖最大寬度
public $thumbWidth=400;
// 縮略圖最大高度
public $thumbHeight=400;
// 縮略圖前綴
public $thumbPrefix = 'thumb_';
public $thumbSuffix = ',';
// 縮略圖保存路徑
public $thumbPath = '';
// 縮略圖文件名
public $thumbFile ='';
// 是否移除原圖
public $thumbRemoveOrigin =true;
// 啓用子目錄保存文件
public $autoSub = false;
// 子目錄建立方式 能夠使用hash date
public $subType = 'date';
public $dateFormat = 'Ym';
public $hashLevel = 1; // hash的目錄層次
// 上傳文件保存路徑
public $savePath = '';
public $autoCheck = true; // 是否自動檢查附件
// 存在同名是否覆蓋
public $uploadReplace = false;
// 上傳文件命名規則
// 例如能夠是 time uniqid com_create_guid 等
// 必須是一個無需任何參數的函數名 能夠使用自定義函數
public $saveRule = 'uniqid';
// 錯誤信息
private $error = '';
// 上傳成功的文件信息
private $uploadFileInfo ;
/**
+----------------------------------------------------------
* 架構函數
+----------------------------------------------------------
* @access public
+----------------------------------------------------------
*/
public function __construct($maxSize='',$allowExts='',$allowTypes='',$savePath='',$saveRule='')
{
if(!empty($maxSize) && is_numeric($maxSize)) {
$this->maxSize = $maxSize;
}
if(!empty($allowExts)) {
if(is_array($allowExts)) {
$this->allowExts = array_map('strtolower',$allowExts);
}else {
$this->allowExts = explode(',',strtolower($allowExts));
}
}
if(!empty($allowTypes)) {
if(is_array($allowTypes)) {
$this->allowTypes = array_map('strtolower',$allowTypes);
}else {
$this->allowTypes = explode(',',strtolower($allowTypes));
}
}
if(!empty($saveRule)) {
$this->saveRule = $saveRule;
}
$this->savePath .= $savePath;
}
/**
+----------------------------------------------------------
* 上傳一個文件
+----------------------------------------------------------
* @access public
+----------------------------------------------------------
* @param mixed $name 數據
* @param string $value 數據表名
+----------------------------------------------------------
* @return string
+----------------------------------------------------------
* @throws ThinkExecption
+----------------------------------------------------------
*/
private function save(&$file)
{
$filename = $file['savepath'].$file['savename'];
if(!$this->uploadReplace && is_file($filename)) {
// 不覆蓋同名文件
$this->error = '文件已經存在！'.$filename;
return false;
}
// 若是是圖像文件 檢測文件格式
if( in_array(strtolower($file['extension']),array('gif','jpg','jpeg','bmp','png','swf')) && false === getimagesize($file['tmp_name'])) {
$this->error = '非法圖像文件';
return false;
}
if(!move_uploaded_file($file['tmp_name'],$filename)) {
$this->error = '文件上傳保存錯誤！';
return false;
}
if($this->thumb && in_array(strtolower($file['extension']),array('gif','jpg','jpeg','bmp','png'))) {
$image = getimagesize($filename);
if(false !== $image) {
//是圖像文件生成縮略圖
$thumbPath = $this->thumbPath?$this->thumbPath:$file['savepath'];
$realFilename = $this->autoSub?basename($file['savename']):$file['savename'];
$thumbname=$this->thumbPrefix.substr($realFilename,0,strrpos($realFilename, '.')).'.'.$file['extension'];
if(Image::thumb($filename,$thumbPath.$thumbname,'',$this->thumbWidth,$this->thumbHeight,true)){
$file['thumb']=$thumbname;
}
if($this->thumbRemoveOrigin) {
// 生成縮略圖以後刪除原圖
unlink($filename);
}
}
}
return true;
}
/**
+----------------------------------------------------------
* 上傳全部文件
+----------------------------------------------------------
* @access public
+----------------------------------------------------------
* @param string $savePath 上傳文件保存路徑
+----------------------------------------------------------
* @return string
+----------------------------------------------------------
* @throws ThinkExecption
+----------------------------------------------------------
*/
public function upload($savePath ='')
{
//若是不指定保存文件名，則由系統默認
if(empty($savePath))
$savePath = $this->savePath;
// 檢查上傳目錄
if(!is_dir($savePath)) {
// 檢查目錄是否編碼後的
if(is_dir(base64_decode($savePath))) {
$savePath = base64_decode($savePath);
}else{
// 嘗試建立目錄
if(!mkdir($savePath)){
$this->error = '上傳目錄'.$savePath.'不存在';
return false;
}
}
}else {
if(!is_writeable($savePath)) {
$this->error = '上傳目錄'.$savePath.'不可寫';
return false;
}
}
$fileInfo = array();
$isUpload = false;
// 獲取上傳的文件信息
// 對$_FILES數組信息處理
$files = $this->dealFiles($_FILES);
foreach($files as $key => $file) {
//過濾無效的上傳
if(!empty($file['name'])) {
//登記上傳文件的擴展信息
$file['key'] = $key;
$file['extension'] = $this->getExt($file['name']);
$file['savepath'] = $savePath;
$file['savename'] = $this->getSaveName($file);
// 自動檢查附件
if($this->autoCheck) {
if(!$this->check($file))
return false;
}
//保存上傳文件
if(!$this->save($file)) return false;
//上傳成功後保存文件信息，供其餘地方調用
unset($file['tmp_name'],$file['error']);
$fileInfo[] = $file;
$isUpload = true;
}
}
if($isUpload) {
$this->uploadFileInfo = $fileInfo;
return true;
}else {
$this->error = '沒有選擇上傳文件';
return false;
}
}
/**
+----------------------------------------------------------
* 上傳單個上傳字段中的文件 支持多附件
+----------------------------------------------------------
* @access public
+----------------------------------------------------------
* @param array $file 上傳文件信息
* @param string $savePath 上傳文件保存路徑
+----------------------------------------------------------
* @return string
+----------------------------------------------------------
* @throws ThinkExecption
+----------------------------------------------------------
*/
public function uploadOne($file,$savePath=''){
//若是不指定保存文件名，則由系統默認
if(empty($savePath))
$savePath = $this->savePath;
// 檢查上傳目錄
if(!is_dir($savePath)) {
// 嘗試建立目錄
if(!mkdir($savePath)){
$this->error = '上傳目錄'.$savePath.'不存在';
return false;
}
}else {
if(!is_writeable($savePath)) {
$this->error = '上傳目錄'.$savePath.'不可寫';
return false;
}
}
//過濾無效的上傳
if(!empty($file['name'])) {
$fileArray = array();
if(is_array($file['name'])) {
$keys = array_keys($file);
$count = count($file['name']);
for ($i=0; $i<$count; $i++) {
foreach ($keys as $key)
$fileArray[$i][$key] = $file[$key][$i];
}
}else{
$fileArray[] = $file;
}
$info = array();
foreach ($fileArray as $key=>$file){
//登記上傳文件的擴展信息
$file['extension'] = $this->getExt($file['name']);
$file['savepath'] = $savePath;
$file['savename'] = $this->getSaveName($file);
// 自動檢查附件
if($this->autoCheck) {
if(!$this->check($file))
return false;
}
//保存上傳文件
if(!$this->save($file)) return false;
unset($file['tmp_name'],$file['error']);
$info[] = $file;
$isUpload=true;
}
if($isUpload) {
$this->uploadFileInfo = $info;
return true;
// 返回上傳的文件信息
}
}else {
$this->error = '沒有選擇上傳文件';
return false;
}
}
/**
+----------------------------------------------------------
* 轉換上傳文件數組變量爲正確的方式
+----------------------------------------------------------
* @access private
+----------------------------------------------------------
* @param array $files 上傳的文件變量
+----------------------------------------------------------
* @return array
+----------------------------------------------------------
*/
private function dealFiles($files) {
$fileArray = array();
$n = 0;
foreach ($files as $file){
if(is_array($file['name'])) {
$keys = array_keys($file);
$count = count($file['name']);
for ($i=0; $i<$count; $i++) {
foreach ($keys as $key)
$fileArray[$n][$key] = $file[$key][$i];
$n++;
}
}else{
$fileArray[$n] = $file;
$n++;
}
}
return $fileArray;
}
/**
+----------------------------------------------------------
* 獲取錯誤代碼信息
+----------------------------------------------------------
* @access public
+----------------------------------------------------------
* @param string $errorNo 錯誤號碼
+----------------------------------------------------------
* @return void
+----------------------------------------------------------
* @throws ThinkExecption
+----------------------------------------------------------
*/
protected function error($errorNo)
{
switch($errorNo) {
case 1:
$this->error = '上傳的文件超過了 php.ini 中 upload_max_filesize 選項限制的值';
break;
case 2:
$this->error = '上傳文件的大小超過了 HTML 表單中 MAX_FILE_SIZE 選項指定的值';
break;
case 3:
$this->error = '文件只有部分被上傳';
break;
case 4:
$this->error = '沒有文件被上傳';
break;
case 6:
$this->error = '找不到臨時文件夾';
break;
case 7:
$this->error = '文件寫入失敗';
break;
default:
$this->error = '未知上傳錯誤！';
}
return ;
}
/**
+----------------------------------------------------------
* 根據上傳文件命名規則取得保存文件名
+----------------------------------------------------------
* @access private
+----------------------------------------------------------
* @param string $filename 數據
+----------------------------------------------------------
* @return string
+----------------------------------------------------------
*/
private function getSaveName($filename)
{
$rule = $this->saveRule;
if(empty($rule)) {//沒有定義命名規則，則保持文件名不變
$saveName = $filename['name'];
}else {
if(function_exists($rule)) {
//使用函數生成一個惟一文件標識號
$saveName = $rule().".".$filename['extension'];
}else {
//使用給定的文件名做爲標識號
$saveName = $rule.".".$filename['extension'];
}
}
if($this->autoSub) {
// 使用子目錄保存文件
$filename['savename'] = $saveName;
$saveName = $this->getSubName($filename).'/'.$saveName;
}
return $saveName;
}
/**
+----------------------------------------------------------
* 獲取子目錄的名稱
+----------------------------------------------------------
* @access private
+----------------------------------------------------------
* @param array $file 上傳的文件信息
+----------------------------------------------------------
* @return string
+----------------------------------------------------------
*/
private function getSubName($file)
{
switch($this->subType) {
case 'date':
$dir = date($this->dateFormat,time());
break;
case 'hash':
default:
$name = md5($file['savename']);
$dir = '';
for($i=0;$i<$this->hashLevel;$i++) {
$dir .= $name{$i}.'/';
}
break;
}
if(!is_dir($file['savepath'].$dir)) {
mkdir($file['savepath'].$dir);
}
return $dir;
}
/**
+----------------------------------------------------------
* 檢查上傳的文件
+----------------------------------------------------------
* @access private
+----------------------------------------------------------
* @param array $file 文件信息
+----------------------------------------------------------
* @return boolean
+----------------------------------------------------------
*/
private function check($file) {
if($file['error']!== 0) {
//文件上傳失敗
//捕獲錯誤代碼
$this->error($file['error']);
return false;
}
//文件上傳成功，進行自定義規則檢查
//檢查文件大小
if(!$this->checkSize($file['size'])) {
$this->error = '上傳文件大小不符！';
return false;
}
//檢查文件Mime類型
if(!$this->checkType($file['type'])) {
$this->error = '上傳文件MIME類型不容許！';
return false;
}
//檢查文件類型
if(!$this->checkExt($file['extension'])) {
$this->error ='上傳文件類型不容許';
return false;
}
//檢查是否合法上傳
if(!$this->checkUpload($file['tmp_name'])) {
$this->error = '非法上傳文件！';
return false;
}
return true;
}
/**
+----------------------------------------------------------
* 檢查上傳的文件類型是否合法
+----------------------------------------------------------
* @access private
+----------------------------------------------------------
* @param string $type 數據
+----------------------------------------------------------
* @return boolean
+----------------------------------------------------------
*/
private function checkType($type)
{
if(!empty($this->allowTypes))
return in_array(strtolower($type),$this->allowTypes);
return true;
}
/**
+----------------------------------------------------------
* 檢查上傳的文件後綴是否合法
+----------------------------------------------------------
* @access private
+----------------------------------------------------------
* @param string $ext 後綴名
+----------------------------------------------------------
* @return boolean
+----------------------------------------------------------
*/
private function checkExt($ext)
{
if(!empty($this->allowExts))
return in_array(strtolower($ext),$this->allowExts,true);
return true;
}
/**
+----------------------------------------------------------
* 檢查文件大小是否合法
+----------------------------------------------------------
* @access private
+----------------------------------------------------------
* @param integer $size 數據
+----------------------------------------------------------
* @return boolean
+----------------------------------------------------------
*/
private function checkSize($size)
{
return !($size > $this->maxSize) || (-1 == $this->maxSize);
}
/**
+----------------------------------------------------------
* 檢查文件是否非法提交
+----------------------------------------------------------
* @access private
+----------------------------------------------------------
* @param string $filename 文件名
+----------------------------------------------------------
* @return boolean
+----------------------------------------------------------
*/
private function checkUpload($filename)
{
return is_uploaded_file($filename);
}
/**
+----------------------------------------------------------
* 取得上傳文件的後綴
+----------------------------------------------------------
* @access private
+----------------------------------------------------------
* @param string $filename 文件名
+----------------------------------------------------------
* @return boolean
+----------------------------------------------------------
*/
private function getExt($filename)
{
$pathinfo = pathinfo($filename);
return $pathinfo['extension'];
}
/**
+----------------------------------------------------------
* 取得上傳文件的信息
+----------------------------------------------------------
* @access public
+----------------------------------------------------------
* @return array
+----------------------------------------------------------
*/
public function getUploadFileInfo()
{
return $this->uploadFileInfo;
}
/**
+----------------------------------------------------------
* 取得最後一次錯誤信息
+----------------------------------------------------------
* @access public
+----------------------------------------------------------
* @return string
+----------------------------------------------------------
*/
public function getErrorMsg()
{
return $this->error;
}
}//類定義結束
?>
<?php
// +----------------------------------------------------------------------
// | ThinkPHP [ WE CAN DO IT JUST THINK IT ]
// +----------------------------------------------------------------------
// | Copyright (c) 2009 http://thinkphp.cn All rights reserved.
// +----------------------------------------------------------------------
// | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 )
// +----------------------------------------------------------------------
// | Author: liu21st <liu21st@gmail.com>
// +----------------------------------------------------------------------
// $Id$
/**
+------------------------------------------------------------------------------
* 圖像操做類庫
+------------------------------------------------------------------------------
* @category ORG
* @package ORG
* @subpackage Util
* @author liu21st <liu21st@gmail.com>
* @version $Id$
+------------------------------------------------------------------------------
*/
class Image{//類定義開始
/**
+----------------------------------------------------------
* 取得圖像信息
*
+----------------------------------------------------------
* @static
* @access public
+----------------------------------------------------------
* @param string $image 圖像文件名
+----------------------------------------------------------
* @return mixed
+----------------------------------------------------------
*/
static function getImageInfo($img) {
$imageInfo = getimagesize($img);
if ($imageInfo !== false) {
$imageType = strtolower(substr(image_type_to_extension($imageInfo[2]), 1));
$imageSize = filesize($img);
$info = array(
"width" => $imageInfo[0],
"height" => $imageInfo[1],
"type" => $imageType,
"size" => $imageSize,
"mime" => $imageInfo['mime']
);
return $info;
} else {
return false;
}
}
/**
+----------------------------------------------------------
* 爲圖片添加水印
+----------------------------------------------------------
* @static public
+----------------------------------------------------------
* @param string $source 原文件名
* @param string $water 水印圖片
* @param string $$savename 添加水印後的圖片名
* @param string $alpha 水印的透明度
+----------------------------------------------------------
* @return string
+----------------------------------------------------------
* @throws ThinkExecption
+----------------------------------------------------------
*/
static public function water($source, $water, $savename=null, $alpha=80) {
//檢查文件是否存在
if (!file_exists($source) || !file_exists($water))
return false;
//圖片信息
$sInfo = self::getImageInfo($source);
$wInfo = self::getImageInfo($water);
//若是圖片小於水印圖片，不生成圖片
if ($sInfo["width"] < $wInfo["width"] || $sInfo['height'] < $wInfo['height'])
return false;
//創建圖像
$sCreateFun = "imagecreatefrom" . $sInfo['type'];
$sImage = $sCreateFun($source);
$wCreateFun = "imagecreatefrom" . $wInfo['type'];
$wImage = $wCreateFun($water);
//設定圖像的混色模式
imagealphablending($wImage, true);
//圖像位置,默認爲右下角右對齊
$posY = $sInfo["height"] - $wInfo["height"];
$posX = $sInfo["width"] - $wInfo["width"];
//生成混合圖像
imagecopymerge($sImage, $wImage, $posX, $posY, 0, 0, $wInfo['width'], $wInfo['height'], $alpha);
//輸出圖像
$ImageFun = 'Image' . $sInfo['type'];
//若是沒有給出保存文件名，默認爲原圖像名
if (!$savename) {
$savename = $source;
@unlink($source);
}
//保存圖像
$ImageFun($sImage, $savename);
imagedestroy($sImage);
return true;
}
/**
+----------------------------------------------------------
* 生成縮略圖
+----------------------------------------------------------
* @static
* @access public
+----------------------------------------------------------
* @param string $image 原圖
* @param string $type 圖像格式
* @param string $thumbname 縮略圖文件名
* @param string $maxWidth 寬度
* @param string $maxHeight 高度
* @param string $position 縮略圖保存目錄
* @param boolean $interlace 啓用隔行掃描
+----------------------------------------------------------
* @return void
+----------------------------------------------------------
*/
static function thumb($image, $thumbname, $type='', $maxWidth=200, $maxHeight=50, $interlace=true) {
// 獲取原圖信息
$info = Image::getImageInfo($image);
if ($info !== false) {
$srcWidth = $info['width'];
$srcHeight = $info['height'];
$type = empty($type) ? $info['type'] : $type;
$type = strtolower($type);
$interlace = $interlace ? 1 : 0;
unset($info);
$scale = min($maxWidth / $srcWidth, $maxHeight / $srcHeight); // 計算縮放比例
if ($scale >= 1) {
// 超過原圖大小再也不縮略
$width = $srcWidth;
$height = $srcHeight;
} else {
// 縮略圖尺寸
$width = (int) ($srcWidth * $scale);
$height = (int) ($srcHeight * $scale);
}
// 載入原圖
$createFun = 'ImageCreateFrom' . ($type == 'jpg' ? 'jpeg' : $type);
$srcImg = $createFun($image);
//建立縮略圖
if ($type != 'gif' && function_exists('imagecreatetruecolor'))
$thumbImg = imagecreatetruecolor($width, $height);
else
$thumbImg = imagecreate($width, $height);
// 複製圖片
if (function_exists("ImageCopyResampled"))
imagecopyresampled($thumbImg, $srcImg, 0, 0, 0, 0, $width, $height, $srcWidth, $srcHeight);
else
imagecopyresized($thumbImg, $srcImg, 0, 0, 0, 0, $width, $height, $srcWidth, $srcHeight);
if ('gif' == $type || 'png' == $type) {
//imagealphablending($thumbImg, false);//取消默認的混色模式
//imagesavealpha($thumbImg,true);//設定保存完整的 alpha 通道信息
$background_color = imagecolorallocate($thumbImg, 0, 255, 0); // 指派一個綠色
imagecolortransparent($thumbImg, $background_color); // 設置爲透明色，若註釋掉該行則輸出綠色的圖
}
// 對jpeg圖形設置隔行掃描
if ('jpg' == $type || 'jpeg' == $type)
imageinterlace($thumbImg, $interlace);
//$gray=ImageColorAllocate($thumbImg,255,0,0);
//ImageString($thumbImg,2,5,5,"ThinkPHP",$gray);
// 生成圖片
$imageFun = 'image' . ($type == 'jpg' ? 'jpeg' : $type);
$imageFun($thumbImg, $thumbname);
imagedestroy($thumbImg);
imagedestroy($srcImg);
return $thumbname;
}
return false;
}
}
//類定義結束
?><?php
header("Content-type:text/html;charset=utf-8");
require "UploadFile.class.php";
require "Image.class.php";
$upload=new UploadFile();if(!$upload->uploadOne($_FILES['name'],ROOT.'upload/')){$upload->getErrorMsg();}else{ $list=$upload->getUploadFileInfo(); $info=array(); foreach ($list as $val){ $info=$val; } $water=ROOT.'data/logo.png'; $source=$info['savepath'].$info['thumb'];
$savename='water'.$info['savename']; if(Image::water($source, $water)){ } var_dump($info); }?>
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