﻿
<%@page import="com.hanweb.jcms.util.SafeUtil"%>
<%@page import="com.hanweb.common.util.DateUtil" %>
<%@page import="com.hanweb.common.util.NumberUtil" %>
<%@page import="com.hanweb.common.util.SpringUtil" %>
<%@page import="com.hanweb.common.util.StringUtil" %>
<%@page import="com.hanweb.common.util.file.BOSFileUtil" %>
<%@page import="com.hanweb.common.util.file.IFileUtil" %>
<%@page import="com.hanweb.common.util.file.OSSFileUtil" %>
<%@page import="com.hanweb.common.util.ip.IpUtil" %>
<%@page import="com.hanweb.common.util.mvc.Script" %>ß
<%@page import="com.hanweb.jcms.entity.Jcms_AttachEntity" %>
<%@page import="com.hanweb.jcms.plugins.download.service.DownloadBLF" %>
<%@page import="com.hanweb.jcms.service.filemanager.Jcms_AttachBLF" %>
<%@page import="com.hanweb.jcms.service.website.Jcms_WebinfomationBLF" %>
<%@page import="com.hanweb.jcms.util.io.DownFile" %>
<%@page import="org.apache.commons.logging.Log" %>
<%@page import="org.apache.commons.logging.LogFactory" %>
<%@page import="org.springframework.util.Base64Utils" %>
<%@page import="java.net.URLEncoder" %>
<%@page contentType="text/html;charset=UTF-8" %>
<%@include file="./config.jsp" %>
<%
    String strFileName = SafeUtil.getSafeString(request.getParameter("filename"));
    String i_classid = SafeUtil.getSafeString(request.getParameter("classid"));
    String pathfile = SafeUtil.getSafeString(request.getParameter("pathfile"));

    Log logger = LogFactory.getLog(getClass());
    Script script = Script.getInstanceOnly();

    if (strFileName.contains("../")) {
        out.println(script.addScript("alert('文件路径包含非法参数！');").getScript());
        return;
    }

    int etype = 0;//是否可以连接数据库   0 可以  1不可以
    if (strFileName.length() == 0) {
        out.println(script.addScript("alert('未指定要下载文件的文件名!');").getScript());
        logger.debug("未指定要下载文件的文件名!");
        return;
    }

    if (pathfile != null && StringUtil.getString(pathfile).length() > 0) {

        if (pathfile.contains("../")) {
            out.println(script.addScript("alert('文件路径包含非法参数！');").getScript());
            return;
        }

        if (strFileName.indexOf(".") > 0) {
            strFileName = strFileName.substring(0, strFileName.indexOf("."));
        }
        String encodeName = "";
        if (StringUtil.isChinese(strFileName)) {
            try {
                encodeName = java.net.URLEncoder.encode(strFileName);
            } catch (Exception e) {
                e.printStackTrace();
            }
            pathfile = pathfile.replaceAll(strFileName, encodeName);
        }
        Jcms_WebinfomationBLF webinfomationBLF = Jcms_WebinfomationBLF.getInstance();
        String domains = webinfomationBLF.findDomainFromWebInfo(NumberUtil.getInt(strWebID));
        String strAttachUrl = (domains + "/" + pathfile);
        strAttachUrl = strAttachUrl.replaceAll("//", "/");
        strAttachUrl = strAttachUrl.replaceAll("\r", "");
        strAttachUrl = strAttachUrl.replaceAll("\n", "");
        strAttachUrl = strAttachUrl.replaceAll("\n\r", "");
        out.println(script.addScript("window.open('http://" + strAttachUrl + "')").getScript());
        return;
    }

    IFileUtil fileUtil = (IFileUtil) SpringUtil.getBean("FileUtil");

    Jcms_AttachBLF attachBlf = Jcms_AttachBLF.getInstance().init(strAppID, NumberUtil.getInt(strWebID));
    Jcms_AttachEntity attachEn = null;
    try {
        attachEn = attachBlf.findFileName(strFileName);
    } catch (Exception e) {
        etype = 1;
    }
    if (attachEn == null) {
        if ("".equals(i_classid)) {
            out.println(script.addScript("alert('文件不存在!');").getScript());
            return;
        } else {
            //数据移植直接放进去的附件，没有入库
            String strFilePath;
            if (strFileName.contains("attatches")) {
                strFilePath = fileUtil.getAbsolutePath("jcms_files/jcms" + strAppID + "/web" + strWebID + "/site" + strFileName);//物理路径
            } else {
                strFilePath = fileUtil.getAbsolutePath("jcms_files/jcms"
                        + strAppID + "/web" + strWebID + "/site/attach/" + i_classid + "/" + strFileName);//物理路径
            }
            if (fileUtil.exists(strFilePath)) {
                attachEn = new Jcms_AttachEntity();
                attachEn.setVc_name(strFileName);
                attachEn.setI_typeid(NumberUtil.getInt(i_classid));
            } else {
                out.println(script.addScript("alert('文件不存在!');").getScript());
                return;
            }
        }
    }

    String fileType = "";
    if (strFileName.lastIndexOf(".") >= 0 && strFileName.lastIndexOf(".") < strFileName.length() - 1) {
        fileType = strFileName.substring(strFileName.lastIndexOf(".") + 1);
    }

    int classId = attachEn.getI_typeid();//类别ID
    String downloadname;
    downloadname = attachEn.getVc_name();//下载显示名
    if (downloadname == null || downloadname.trim().length() == 0) {
        downloadname = strFileName;
    }
    String strFilePath;
    if (strFileName.contains("attatches")) {
        strFilePath = fileUtil.getAbsolutePath("jcms_files/jcms"
                + strAppID + "/web" + strWebID + "/site" + strFileName);//物理路径
    } else {
        strFilePath = fileUtil.getAbsolutePath("jcms_files/jcms"
                + strAppID + "/web" + strWebID + "/site/attach/"
                + classId + "/" + strFileName);//物理路径
    }

    if (!fileUtil.exists(strFilePath) || strFilePath.toLowerCase().endsWith(".xml")
            || strFilePath.toLowerCase().endsWith(".jsp")) {
        logger.debug(" downfile:文件不存在!");
        out.println(script.addScript("alert('下载失败，文件不存在！');").getScript());
        return;
    }

    String filedownload;
    if (strFileName.contains("attatches")) {
        filedownload = fileUtil.getAbsolutePath("jcms_files/jcms" + strAppID + "/web" + strWebID + "/site" + strFileName);//下载路径
    } else {
        filedownload = fileUtil.getAbsolutePath("jcms_files/jcms" + strAppID + "/web" + strWebID + "/site/attach/" + classId + "/" + strFileName);//下载路径
    }
    //pdf文件在文章页中直接预览
    String filenamedisplay;
    String userAgent = request.getHeader("USER-AGENT");
    if (userAgent.lastIndexOf("Safari") > -1 && userAgent.lastIndexOf("Chrome") == -1) {
        filenamedisplay = new String(downloadname.getBytes("UTF-8"), "ISO8859-1");
    } else if (userAgent.toLowerCase().contains("firefox")) {
        filenamedisplay = "=?UTF-8?B?" + (Base64Utils.encodeToString(downloadname.getBytes("UTF-8"))) + "?=";
    } else {
        filenamedisplay = URLEncoder.encode(downloadname, "UTF-8");
    }
    //attachEn	为空  没有名称默认为 url的文件名称
    if (filenamedisplay.trim().length() == 0) {
        filenamedisplay = strFileName;
    }
    try {
        out.clear();
        out = pageContext.pushBody();
    } catch (Throwable e) {
        e.printStackTrace();
    }
    DownloadBLF downblf = SpringUtil.getBean(DownloadBLF.class);
    try {
        if (userAgent.contains("iPhone") || userAgent.contains("iPad")) {
        	if ("xls".equals(fileType) || "xlsx".equals(fileType)) {
                if ("xls".equals(fileType)) {
                    response.setContentType("application/vnd.ms-excel;charset=UTF-8");
                } else {
                    response.setContentType("application/vnd.openxmlformats-officedocument.spreadsheetml.sheet;charset=UTF-8");
                }
                if (!DownFile.downXls(filedownload, filenamedisplay, userAgent, response, request)) {
                    out.println(script.addScript("alert('下载失败，文件可能不存在！');").getScript());
                } else {
                    //无法连接数据库  不存表
                    if (etype == 0) {
                        downblf.addDownloadRecord(strFileName, DateUtil.getCurrDateTime(), request.getContextPath(), request.getHeader("user-agent"), IpUtil.getIp(), NumberUtil.getInt(strWebID));
                    }
                }
            } else {
                if ("txt".equals(fileType)) {
                    response.setContentType("text/html;charset=gb2312");
                }
                if ("pdf".equals(fileType)) {
                    response.setContentType("application/pdf;charset=UTF-8");
                }
                if ("docx".equals(fileType)) {
                    response.setContentType("application/vnd.openxmlformats-officedocument.wordprocessingml.document;charset=UTF-8");
                }
                if ("doc".equals(fileType)) {
                    response.setContentType("application/msword;charset=UTF-8");
                }
                RequestDispatcher dis = application.getRequestDispatcher("/jcms_files/jcms" + strAppID + "/web" + strWebID + "/site/attach/" + classId + "/" + strFileName);
                if (dis != null) {
                    dis.forward(request, response);
                    if (etype == 0) {
                        downblf.addDownloadRecord(strFileName, DateUtil.getCurrDateTime(), request.getContextPath(), request.getHeader("user-agent"), IpUtil.getIp(), NumberUtil.getInt(strWebID));
                    }
                } else {
                    out.println(script.addScript("alert('下载失败，文件可能不存在！');").getScript());
                }
            }
        } else if (userAgent.contains("Android")) {
            if (!DownFile.getFile(filedownload, filenamedisplay, response, "UTF-8", request, false)) {
                out.println(script.addScript("alert('下载失败，文件可能不存在！');").getScript());
            } else {
                if (etype == 0) {
                    downblf.addDownloadRecord(strFileName, DateUtil.getCurrDateTime(), request.getContextPath(), request.getHeader("user-agent"), IpUtil.getIp(), NumberUtil.getInt(strWebID));
                }
            }
        } else {
            //oss和bos下浏览器无法直接打开pdf文件
            if ("pdf".equals(fileType)) {
                response.setContentType("application/pdf;charset=UTF-8");
            }
            if ("pdf".equals(fileType) && fileUtil.getImplClazz() != OSSFileUtil.class && fileUtil.getImplClazz() != BOSFileUtil.class) {
                response.setHeader("Content-Disposition", "inline; filename=" + URLEncoder.encode(filenamedisplay, "UTF-8"));
                RequestDispatcher dis = application.getRequestDispatcher("/jcms_files/jcms" + strAppID + "/web" + strWebID + "/site/attach/" + classId + "/" + URLEncoder.encode(strFileName, "UTF-8"));
                if (dis != null) {
                    dis.forward(request, response);
                    if (etype == 0) {
                        downblf.addDownloadRecord(strFileName, DateUtil.getCurrDateTime(), request.getContextPath(), request.getHeader("user-agent"), IpUtil.getIp(), NumberUtil.getInt(strWebID));
                    }
                } else {
                    out.println(script.addScript("alert('下载失败，文件可能不存在！');").getScript());
                }
            } else {
                if (!DownFile.getFile(filedownload, filenamedisplay, response, "UTF-8", request, false)) {
                    out.println(script.addScript("alert('下载失败，文件可能不存在！');").getScript());
                } else {
                    //无法连接数据库  不存表
                    if (etype == 0) {
                        downblf.addDownloadRecord(strFileName, DateUtil.getCurrDateTime(), request.getContextPath(), request.getHeader("user-agent"), IpUtil.getIp(), NumberUtil.getInt(strWebID));
                    }
                }
            }
        }
    } catch (Exception e) {
        e.printStackTrace();
    } finally {
        response.flushBuffer();
    }
%>