网站后台管理系统原型

<?php /** * Created by JetBrains PhpStorm. * User: taoqili * Date: 12-7-18 * Time: 上午11: 32 * UEditor编辑器通用上传类 */ class Uploader { private $fileField; //文件域名 private $file; //文件上传对象 private $base64; //文件上传对象 private $config; //配置信息 private $oriName; //原始文件名 private $fileName; //新文件名 private $fullName; //完整文件名,即从当前配置目录开始的URL private $filePath; //完整文件名,即从当前配置目录开始的URL private $fileSize; //文件大小 private $fileType; //文件类型 private $stateInfo; //上传状态信息, private $stateMap = array( //上传状态映射表，国际化用户需考虑此处数据的国际化 "SUCCESS", //上传成功标记，在UEditor中内不可改变，否则flash判断会出错 "文件大小超出 upload_max_filesize 限制", "文件大小超出 MAX_FILE_SIZE 限制", "文件未被完整上传", "没有文件被上传", "上传文件为空", "ERROR_TMP_FILE" => "临时文件错误", "ERROR_TMP_FILE_NOT_FOUND" => "找不到临时文件", "ERROR_SIZE_EXCEED" => "文件大小超出网站限制", "ERROR_TYPE_NOT_ALLOWED" => "文件类型不允许", "ERROR_CREATE_DIR" => "目录创建失败", "ERROR_DIR_NOT_WRITEABLE" => "目录没有写权限", "ERROR_FILE_MOVE" => "文件保存时出错", "ERROR_FILE_NOT_FOUND" => "找不到上传文件", "ERROR_WRITE_CONTENT" => "写入文件内容错误", "ERROR_UNKNOWN" => "未知错误", "ERROR_DEAD_LINK" => "链接不可用", "ERROR_HTTP_LINK" => "链接不是http链接", "ERROR_HTTP_CONTENTTYPE" => "链接contentType不正确" ); /** * 构造函数 * @param string $fileField 表单名称 * @param array $config 配置项 * @param bool $base64 是否解析base64编码，可省略。若开启，则$fileField代表的是base64编码的字符串表单名 */ public function __construct($fileField, $config, $type = "upload") { $this->fileField = $fileField; $this->config = $config; $this->type = $type; if ($type == "remote") { $this->saveRemote(); } else if($type == "base64") { $this->upBase64(); } else { $this->upFile(); } $this->stateMap['ERROR_TYPE_NOT_ALLOWED'] = iconv('unicode', 'utf-8', $this->stateMap['ERROR_TYPE_NOT_ALLOWED']); } /** * 上传文件的主处理方法 * @return mixed */ private function upFile() { $file = $this->file = $_FILES[$this->fileField]; if (!$file) { $this->stateInfo = $this->getStateInfo("ERROR_FILE_NOT_FOUND"); return; } if ($this->file['error']) { $this->stateInfo = $this->getStateInfo($file['error']); return; } else if (!file_exists($file['tmp_name'])) { $this->stateInfo = $this->getStateInfo("ERROR_TMP_FILE_NOT_FOUND"); return; } else if (!is_uploaded_file($file['tmp_name'])) { $this->stateInfo = $this->getStateInfo("ERROR_TMPFILE"); return; } $this->oriName = $file['name']; $this->fileSize = $file['size']; $this->fileType = $this->getFileExt(); $this->fullName = $this->getFullName(); $this->filePath = $this->getFilePath(); $this->fileName = $this->getFileName(); $dirname = dirname($this->filePath); //检查文件大小是否超出限制 if (!$this->checkSize()) { $this->stateInfo = $this->getStateInfo("ERROR_SIZE_EXCEED"); return; } //检查是否不允许的文件格式 if (!$this->checkType()) { $this->stateInfo = $this->getStateInfo("ERROR_TYPE_NOT_ALLOWED"); return; } //创建目录失败 if (!file_exists($dirname) && !mkdir($dirname, 0777, true)) { $this->stateInfo = $this->getStateInfo("ERROR_CREATE_DIR"); return; } else if (!is_writeable($dirname)) { $this->stateInfo = $this->getStateInfo("ERROR_DIR_NOT_WRITEABLE"); return; } //移动文件 if (!(move_uploaded_file($file["tmp_name"], $this->filePath) && file_exists($this->filePath))) { //移动失败 $this->stateInfo = $this->getStateInfo("ERROR_FILE_MOVE"); } else { //移动成功 $this->stateInfo = $this->stateMap[0]; } } /** * 处理base64编码的图片上传 * @return mixed */ private function upBase64() { $base64Data = $_POST[$this->fileField]; $img = base64_decode($base64Data); $this->oriName = $this->config['oriName']; $this->fileSize = strlen($img); $this->fileType = $this->getFileExt(); $this->fullName = $this->getFullName(); $this->filePath = $this->getFilePath(); $this->fileName = $this->getFileName(); $dirname = dirname($this->filePath); //检查文件大小是否超出限制 if (!$this->checkSize()) { $this->stateInfo = $this->getStateInfo("ERROR_SIZE_EXCEED"); return; } //创建目录失败 if (!file_exists($dirname) && !mkdir($dirname, 0777, true)) { $this->stateInfo = $this->getStateInfo("ERROR_CREATE_DIR"); return; } else if (!is_writeable($dirname)) { $this->stateInfo = $this->getStateInfo("ERROR_DIR_NOT_WRITEABLE"); return; } //移动文件 if (!(file_put_contents($this->filePath, $img) && file_exists($this->filePath))) { //移动失败 $this->stateInfo = $this->getStateInfo("ERROR_WRITE_CONTENT"); } else { //移动成功 $this->stateInfo = $this->stateMap[0]; } } /** * 拉取远程图片 * @return mixed */ private function saveRemote() { $imgUrl = htmlspecialchars($this->fileField); $imgUrl = str_replace("&amp;", "&", $imgUrl); //http开头验证 if (strpos($imgUrl, "http") !== 0) { $this->stateInfo = $this->getStateInfo("ERROR_HTTP_LINK"); return; } //获取请求头并检测死链 $heads = get_headers($imgUrl); if (!(stristr($heads[0], "200") && stristr($heads[0], "OK"))) { $this->stateInfo = $this->getStateInfo("ERROR_DEAD_LINK"); return; } //格式验证(扩展名验证和Content-Type验证) $fileType = strtolower(strrchr($imgUrl, '.')); if (!in_array($fileType, $this->config['allowFiles']) || stristr($heads['Content-Type'], "image")) { $this->stateInfo = $this->getStateInfo("ERROR_HTTP_CONTENTTYPE"); return; } //打开输出缓冲区并获取远程图片 ob_start(); $context = stream_context_create( array('http' => array( 'follow_location' => false // don't follow redirects )) ); readfile($imgUrl, false, $context); $img = ob_get_contents(); ob_end_clean(); preg_match("/[\/]([^\/]*)[\.]?[^\.\/]*$/", $imgUrl, $m); $this->oriName = $m ? $m[1]:""; $this->fileSize = strlen($img); $this->fileType = $this->getFileExt(); $this->fullName = $this->getFullName(); $this->filePath = $this->getFilePath(); $this->fileName = $this->getFileName(); $dirname = dirname($this->filePath); //检查文件大小是否超�