<%@ WebHandler Language="C#" Class="WebHandler" %>
using System;
using System.Web;
using System.IO;
using System.Drawing;
using System.Drawing.Imaging;
using System.Drawing.Drawing2D;
using System.Collections.Generic;
using System.Linq;
using EasyBL;
using EasyNet;
using Entity.Sugar;
using SqlSugar.Base;
using System.Web.SessionState;
public class WebHandler : IHttpHandler, IRequiresSessionState
{
string default_w = "120";
string default_h = "76";
int iwidth;
int iheight;
bool parseOk = false;
public void ProcessRequest(HttpContext context)
{
//Handler action = null;
var req = context.Request;
var sAction = req["action"];
switch (sAction)
{
case "downfile":
downFile(context);
break;
case "saveimg":
SaveImg(context);
break;
case "uploadfile":
UploadFile(context);
break;
case "securityimg":
SecurityImg(context);
break;
default:
break;
}
//action.Process();
}
#region UploadFile 上傳文件
public void UploadFile(HttpContext context)
{
var req = context.Request;
var sSource = req["source"];
var sOrgID = req["orgid"];
var sUserID = req["userid"];
var sParentID = req["parentid"];
var sServerPath = HttpContext.Current.Server.MapPath("/");
var sRoot = sServerPath + "Document\\EurotranFile";
Common.FnCreateDir(sRoot + "\\" + sSource);//如果沒有該目錄就創建目錄
var CheckFile = req.Files[0].FileName; //檔案名稱
if (CheckFile != "")
{
var list_Add = new List<OTB_SYS_Files>();
for (int index = 0; index < req.Files.Count; index++)
{
var file = req.Files[index];
var sFileSizeName = "";
var sFileID = Guid.NewGuid().ToString();//檔案ID
var sFileName = Path.GetFileName(file.FileName);//檔案名稱+文件格式名稱
var sFileType = file.ContentType; //檔案類型
var iFileSize = file.ContentLength; //檔案大小
var KBSize = Math.Round((decimal)iFileSize / 1024, 1);//單位KB
if (KBSize < 1024)
{
sFileSizeName = KBSize + "KB";
}
else
{
var ComparisonSize = Math.Round((decimal)KBSize / 1024, 1);//單位MB
sFileSizeName = ComparisonSize + "MB";
}
var sfileName = sFileName.Split(new string[] { "." }, StringSplitOptions.RemoveEmptyEntries);
var sSubFileName = sfileName.LastOrDefault(); //副檔名
var sNewFileName = sFileID + '.' + sSubFileName;
var sOutputPath = sRoot + "/" + sSource + "/" + sNewFileName;
sOutputPath = System.Text.RegularExpressions.Regex.Replace(sOutputPath, @"//|/", @"\");
file.SaveAs(sOutputPath);
var oFile = new OTB_SYS_Files
{
OrgID = sOrgID,
FileID = sFileID,
ParentID = sParentID,
SourceFrom = sSource,
FileName = sFileName,
SubFileName = sSubFileName,
FilePath = sOutputPath.Replace(sServerPath, ""),
FileType = sFileType,
FileSize = iFileSize,
FileSizeName = sFileSizeName,
CreateUser = sUserID,
CreateDate = DateTime.Now,
ModifyUser = sUserID,
ModifyDate = DateTime.Now
};
list_Add.Add(oFile);
}
var db = SugarBase.DB;
var iRes = db.Insertable(list_Add.ToArray()).ExecuteCommand();
}
}
#endregion
#region downFile 下載文件
public void downFile(HttpContext c)
{
var req = c.Request;
var sPath = req["path"];
var sCusFileName = req["filename"];
sPath = System.Text.RegularExpressions.Regex.Replace(sPath, @"//|/", @"\");
var sServerPath = c.Server.MapPath("/");
sPath = sPath.Replace(sServerPath, "");
sPath = c.Server.MapPath(sPath);
var sFileName = "";
var sExtName = "";
if (!File.Exists(sPath))
{
return;
}
if (sPath != null)
{
var index = 0;
index = sPath.IndexOf("OutFiles");
if (index == -1)
{
index = sPath.IndexOf("EurotranFile");
}
var sNewPath = sPath.Substring(index);
var saPath = sNewPath.Split('.');
var saNewPath = saPath[0].Split("\\/".ToCharArray());
sExtName = saPath[1];
sFileName = sCusFileName ?? saNewPath[saNewPath.Length - 1];
}
c.Response.ContentType = "application/octet-stream";
//设置响应的返回类型是文件流
c.Response.AddHeader("content-disposition", "attachment;filename=" + sFileName + "." + sExtName);
//设置相应的头以及被下载时候显示的文件名
var lFileInfo = new FileInfo(sPath);
//获取下载文件的文件流
c.Response.WriteFile(lFileInfo.FullName);
//返回要下载的文件流
c.Response.End();
}
#endregion
#region SaveImg 儲存圖片
public void SaveImg(HttpContext c)
{
c.Response.ContentType = "text/plain";
var strfilepath = HttpUtility.UrlDecode(c.Request.Form["filepath"], System.Text.Encoding.UTF8);
var phy = HttpUtility.UrlDecode(c.Request.Form["phy"], System.Text.Encoding.UTF8);
var filename = HttpUtility.UrlDecode(c.Request.Form["filename"], System.Text.Encoding.UTF8);
var isrepeat = HttpUtility.UrlDecode(c.Request.Form["isrepeat"], System.Text.Encoding.UTF8);
var user = HttpUtility.UrlDecode(c.Request.Form["user"], System.Text.Encoding.UTF8);
var oDocument_model = new OTB_SYS_Document();
var TopPath = "Document";
var fileroot = "";
try
{
if (phy == "false")
{
//不是實體路徑
//取得實體路徑
strfilepath = HttpContext.Current.Request.MapPath(strfilepath);
}
fileroot = ("\\" + strfilepath.Substring(strfilepath.IndexOf(TopPath))).Replace("\\", "/");
fileroot = fileroot.Substring(0, 1) != "/" ? "/" + fileroot : fileroot; //如果開頭沒有斜線就加上斜線
fileroot = fileroot.Substring(fileroot.Length - 1) != "/" ? fileroot + "/" : fileroot; //如果尾端沒有斜線就加上斜線
var f_name = Path.GetFileNameWithoutExtension(filename);
var f_extn = Path.GetExtension(filename);
var gu_id = Guid.NewGuid().ToString(); //新增圖片GUID
var stringToBase64 = ""; //儲存縮小圖的base64字串
oDocument_model.GUID = gu_id;
oDocument_model.FileName = f_name;
oDocument_model.SubFileName = f_extn;
oDocument_model.FileRoot = fileroot;
oDocument_model.FilePath = fileroot + filename;
var newfile = new FileInfo(strfilepath + filename);
oDocument_model.FileSize = (int)newfile.Length / 1024; //圖片大小
#region base64string 縮圖處理
using (var ms = new MemoryStream())
{
using (var fs = new FileStream(newfile.FullName, FileMode.Open))
{
using (var img = System.Drawing.Image.FromStream(fs))
{
oDocument_model.PixelW = img.Width;
oDocument_model.PixelH = img.Height;
var intW = 100;
var intH = 100;
if (img.Width > img.Height)
{
intW = 100;
intH = (int)100 * img.Height / img.Width;
}
else
{
intH = 100;
intW = (int)100 * img.Width / img.Height;
}
using (var NewImage = new System.Drawing.Bitmap(intW, intH))
{
using (var g = System.Drawing.Graphics.FromImage(NewImage))
{
g.DrawImage(img, 0, 0, intW, intH);
NewImage.Save(ms, System.Drawing.Imaging.ImageFormat.Jpeg);
var imageBytes = ms.ToArray();
stringToBase64 = Convert.ToBase64String(imageBytes);
oDocument_model.FileContent = "data:image/jpg;base64," + stringToBase64;
}
}
}
}
}
#endregion
oDocument_model.IsProtected = "N"; //是否能複製、移除
oDocument_model.IsPublic = "N"; //是否共用
oDocument_model.Memo = (fileroot + filename).Replace("/", " "); //關鍵字查詢
oDocument_model.FileCreateDate = newfile.CreationTime; //檔案創建日
oDocument_model.CreateUser = !string.IsNullOrEmpty(user) ? user : "apadmin"; //創建人
oDocument_model.ModifyUser = !string.IsNullOrEmpty(user) ? user : "apadmin"; //修改人
var db = SugarBase.GetIntance();
if (isrepeat == "true")
{
//修改
var oDoc = db.Queryable<OTB_SYS_Document>().Single(it => it.FilePath == fileroot + filename && it.status != 99);
if (oDoc != null)
{
//有查到GUID才更新圖檔
var iEffect_Upd = db.Updateable(oDocument_model).Where(it => it.GUID == oDoc.GUID).ExecuteCommand();
if (iEffect_Upd > 0)
{
c.Response.Write(oDocument_model.GUID); //儲存成功傳回圖檔GUID
}
}
else
{
//沒有找到相對GUID就新增新增
var iEffect_Add = db.Insertable(oDocument_model).ExecuteCommand();
if (iEffect_Add > 0)
{
c.Response.Write(oDocument_model.GUID); //儲存成功傳回圖檔GUID
}
}
}
else
{
//新增
var iEffect = db.Insertable(oDocument_model).ExecuteCommand();
if (iEffect > 0)
{
c.Response.Write(oDocument_model.GUID); //儲存成功傳回圖檔GUID
}
}
}
catch (Exception ex)
{
LogService.mo_Log.Error("Controller.SaveImg Error Message:" + ex.Message, ex);
c.Response.Write("0"); //儲存成功傳回0
}
}
#endregion
#region SecurityImg 產生驗證碼
public void SecurityImg(HttpContext c)
{
var txt = c.Response;
try
{
var flag = string.IsNullOrEmpty(c.Request["flag"]) ? "" : c.Request["flag"].ToString();
var swidth = string.IsNullOrEmpty(c.Request["w"]) ? default_w : c.Request["w"].ToString();
var sheight = string.IsNullOrEmpty(c.Request["h"]) ? default_h : c.Request["h"].ToString();
c.Response.Expires = -1;
parseOk = int.TryParse(swidth, out iwidth);
if (!parseOk)
{
iwidth = Convert.ToInt16(default_w);
}
parseOk = int.TryParse(sheight, out iheight);
if (!parseOk)
{
iheight = Convert.ToInt16(default_h);
}
switch (flag)
{
case "cap1":
case "cap2":
case "cap3":
case "cap4":
captcha_recon(c, iwidth, iheight, flag);
break;
case "cap11":
captchaImg_sum(c, iwidth, iheight, flag);
break;
default:
break;
}
}
catch (Exception ex)
{
LogService.mo_Log.Error("Controller.SecurityImg Error Message:" + ex.Message);
}
}
#endregion
void captchaImg_sum(HttpContext context, int w, int h, string flag)
{
captchaGen(context, flag);
var bmpOut = new Bitmap(w, h);
var g = Graphics.FromImage(bmpOut);
g.InterpolationMode = InterpolationMode.HighQualityBicubic;
var x = 0;
g.FillRectangle(Brushes.Black, x, 0, w, h);
float fontsize = 6;
var sizeSetupCompleted = false;
var text = Convert.ToString(context.Session["imgText"]);
while (!sizeSetupCompleted)
{
var mySize = g.MeasureString(text, new Font("Verdana", fontsize, FontStyle.Bold));
if (mySize.Width < w || mySize.Height < h)
{
fontsize += float.Parse("0.1");
}
else
{
sizeSetupCompleted = true;
}
}
for (var i = 0; i < text.Length; i++)
{
if (i.ToString() == context.Session["no1"].ToString() || i.ToString() == context.Session["no2"].ToString())
{
g.DrawString(text.Substring(i, 1), new Font("Verdana", fontsize), new SolidBrush(Color.Red), x, 0);
}
else
{
g.DrawString(text.Substring(i, 1), new Font("Verdana", fontsize), new SolidBrush(Color.White), x, 0);
}
x += Convert.ToInt32(fontsize / 2);
}
var ms = new MemoryStream();
bmpOut.Save(ms, ImageFormat.Png);
var bmpBytes = ms.GetBuffer();
bmpOut.Dispose();
ms.Close();
context.Response.BinaryWrite(bmpBytes);
HttpContext.Current.ApplicationInstance.CompleteRequest();
//context.Response.End();
}
void captcha_recon(HttpContext context, int w, int h, string flag)
{
// Create a random code and store it in the Session object.
var sRandomCode = SecurityUtil.GetRandomNumber(4);
context.Session[BLWording.CAPTCHA + flag] = sRandomCode;
// Create a CAPTCHA image using the text stored in the Session object.
var ci = new RandomImage(sRandomCode, w, h);
// Change the response headers to output a JPEG image.
context.Response.Clear();
context.Response.ContentType = "image/jpeg";
var ms = new MemoryStream();
ci.Image.Save(ms, ImageFormat.Jpeg);
var bmpBytes = ms.GetBuffer();
ci.Dispose();
ms.Close();
context.Response.BinaryWrite(bmpBytes);
HttpContext.Current.ApplicationInstance.CompleteRequest();
//context.Response.End();
}
void captchaGen(HttpContext context, string flag)
{
var ran = new Random();
var no = "";
while (no.Length < 6)
{
no = ran.Next(100000, 1000000).ToString();
}
context.Session["no1"] = ran.Next(5);
context.Session["no2"] = ran.Next(5);
while (context.Session["no1"].ToString() == context.Session["no2"].ToString())
{
context.Session["no2"] = ran.Next(5);
}
context.Session["imgText"] = no;
context.Session[BLWording.CAPTCHA + flag] = int.Parse(no.Substring(int.Parse(context.Session["no1"].ToString()), 1)) + int.Parse(no.Substring(int.Parse(context.Session["no2"].ToString()), 1));
}
public class RandomImage
{
//Default Constructor
public RandomImage() { }
//property
public string Text
{
get { return this.text; }
}
public Bitmap Image
{
get { return this.image; }
}
public int Width
{
get { return this.width; }
}
public int Height
{
get { return this.height; }
}
//Private variable
private string text;
private int width;
private int height;
private Bitmap image;
private Random random = new Random();
//Methods declaration
public RandomImage(string s, int width, int height)
{
this.text = s;
this.SetDimensions(width, height);
this.GenerateImage();
}
public void Dispose()
{
GC.SuppressFinalize(this);
this.Dispose(true);
}
protected virtual void Dispose(bool disposing)
{
if (disposing)
this.image.Dispose();
}
private void SetDimensions(int width, int height)
{
if (width <= 0)
throw new ArgumentOutOfRangeException("width", width,
"Argument out of range, must be greater than zero.");
if (height <= 0)
throw new ArgumentOutOfRangeException("height", height,
"Argument out of range, must be greater than zero.");
this.width = width;
this.height = height;
}
private void GenerateImage()
{
var bitmap = new Bitmap
(this.width, this.height, PixelFormat.Format32bppArgb);
var g = Graphics.FromImage(bitmap);
g.SmoothingMode = SmoothingMode.AntiAlias;
var rect = new Rectangle(0, 0, this.width, this.height);
var hatchBrush = new HatchBrush(HatchStyle.SmallConfetti,
Color.LightGray, Color.White);
g.FillRectangle(hatchBrush, rect);
//SizeF size;
float fontSize = rect.Height + 1;
Font font;
float fontsize = 6;
var sizeSetupCompleted = false;
var text = this.text;
while (!sizeSetupCompleted)
{
var mySize = g.MeasureString(text, new Font("Verdana", fontsize, FontStyle.Bold));
if (mySize.Width < rect.Width || mySize.Height < rect.Height)
{
fontsize += float.Parse("0.1");
}
else
{
sizeSetupCompleted = true;
}
}
font = new Font(FontFamily.GenericSansSerif, fontsize, FontStyle.Bold);
using (var format = new StringFormat())
{
format.Alignment = StringAlignment.Center;
format.LineAlignment = StringAlignment.Center;
var path = new GraphicsPath();
//path.AddString(this.text, font.FontFamily, (int) font.Style,
// font.Size, rect, format);
path.AddString(this.text, font.FontFamily, (int)font.Style, font.Size, rect, format);
var v = 4F;
PointF[] points =
{
new PointF(this.random.Next(rect.Width) / v, this.random.Next(
rect.Height) / v),
new PointF(rect.Width - this.random.Next(rect.Width) / v,
this.random.Next(rect.Height) / v),
new PointF(this.random.Next(rect.Width) / v,
rect.Height - this.random.Next(rect.Height) / v),
new PointF(rect.Width - this.random.Next(rect.Width) / v,
rect.Height - this.random.Next(rect.Height) / v)
};
var matrix = new Matrix();
matrix.Translate(0F, 0F);
path.Warp(points, rect, matrix, WarpMode.Perspective, 0F);
hatchBrush = new HatchBrush(HatchStyle.Percent10, Color.Black, Color.SkyBlue);
var m = Math.Max(rect.Width, rect.Height);
for (var i = 0; i < (int)(rect.Width * rect.Height / 30F); i++)
{
var x = this.random.Next(rect.Width);
var y = this.random.Next(rect.Height);
var w = this.random.Next(m / 50);
var h = this.random.Next(m / 50);
g.FillEllipse(hatchBrush, x, y, w, h);
}
hatchBrush = new HatchBrush(HatchStyle.Percent10, Color.Black, Color.OrangeRed);
g.FillPath(hatchBrush, path);
font.Dispose();
hatchBrush.Dispose();
g.Dispose();
this.image = bitmap;
}
}
}
public bool IsReusable
{
get
{
return false;
}
}
}