void savePart()
{
HttpPostedFile part = Request.Files.Get(0);
//验证大小
if (part.InputStream.Length != long.Parse(this.blockSize))
{
Response.End();
return;
}
//计算块md5
string md5Svr = string.Empty;
if (!string.IsNullOrEmpty(this.blockMd5))
{
md5Svr = this.mkMD5(part.InputStream);
}
FileBlockWriter fbw = new FileBlockWriter();
fbw.write(pathSvr, long.Parse(this.lenLoc), long.Parse(this.blockOffset), ref part);
//触发事件
up7_biz_event.file_post_block(id, int.Parse(blockIndex));
//返回信息
JObject o = new JObject();
o["msg"] = "ok";
o["md5"] = md5Svr;
o["offset"] = long.Parse(this.blockOffset);
string json = JsonConvert.SerializeObject(o);//取消格式化
Response.Write(json);
}
void savePartFolder()
{
FileInf fileSvr = new FileInf();
fileSvr.id = id;
fileSvr.nameLoc = Path.GetFileName(pathLoc);
fileSvr.nameSvr = nameLoc;
fileSvr.lenLoc = long.Parse(lenLoc);
fileSvr.sizeLoc = sizeLoc;
fileSvr.pathLoc = this.pathLoc;
fileSvr.pathSvr = this.pathSvr;
fileSvr.pathRel = this.pathRel;
fileSvr.pid = this.pid;
fileSvr.pidRoot = pidRoot;
fileSvr.blockCount = int.Parse(blockCount);
fileSvr.blockSize = int.Parse(blockSize);
HttpPostedFile part = Request.Files.Get(0);
//验证大小
if (part.InputStream.Length != long.Parse(this.blockSize))
{
Response.End();
return;
}
//计算块md5
string md5Svr = string.Empty;
if (!string.IsNullOrEmpty(this.blockMd5))
{
md5Svr = this.mkMD5(part.InputStream);
}
//保存块数据
FileBlockWriter fbw = new FileBlockWriter();
fbw.write(fileSvr.pathSvr, fileSvr.lenLoc, long.Parse(this.blockOffset), ref part);
//触发事件
up7_biz_event.file_post_block(id, int.Parse(blockIndex));
//返回信息
JObject o = new JObject();
o["msg"] = "ok";
o["md5"] = md5Svr;
o["offset"] = long.Parse(this.blockOffset);
string json = JsonConvert.SerializeObject(o);//取消格式化
Response.Write(json);
}
void file_post()
{
string uid = Request.Headers["uid"];
string f_id = Request.Headers["id"];
string lenSvr = Request.Headers["lenSvr"]; //已传大小
string lenLoc = Request.Headers["lenLoc"]; //本地文件大小
string blockOffset = Request.Headers["blockOffset"];
string blockSize = Request.Headers["blockSize"]; //当前块大小
string blockIndex = Request.Headers["blockIndex"]; //当前块索引，基于1
string blockMd5 = Request.Headers["blockMd5"]; //块MD5
string complete = Request.Headers["complete"]; //true/false
string pathSvr = Request.Form["pathSvr"]; //add(2015-03-19):
pathSvr = HttpUtility.UrlDecode(pathSvr);
if (this.head_val_null_empty("lenLoc, uid, id, blockOffset"))
{
return;
}
if (Request.Files.Count < 1)
{
PageTool.to_content("file is empty");
return;
}
bool verify = false;
string msg = string.Empty;
string md5Svr = string.Empty;
HttpPostedFile file = Request.Files.Get(0);//文件块
//计算文件块MD5
if (!string.IsNullOrEmpty(blockMd5))
{
md5Svr = Md5Tool.calc(file.InputStream);
}
//文件块大小验证
verify = int.Parse(blockSize) == file.InputStream.Length;
if (!verify)
{
msg = "block size error sizeSvr:" + file.InputStream.Length + " sizeLoc:" + blockSize;
}
//块MD5验证
if (verify && !string.IsNullOrEmpty(blockMd5))
{
verify = md5Svr == blockMd5;
if (!verify)
{
msg = "block md5 error";
}
}
if (verify)
{
//2.0保存文件块数据
FileBlockWriter res = new FileBlockWriter();
res.make(pathSvr, Convert.ToInt64(lenLoc));
res.write(pathSvr, Convert.ToInt64(blockOffset), ref file);
up6_biz_event.file_post_block(f_id, Convert.ToInt32(blockIndex));
//生成信息
JObject o = new JObject();
o["msg"] = "ok";
o["md5"] = md5Svr; //文件块MD5
o["offset"] = blockOffset; //偏移
msg = JsonConvert.SerializeObject(o);
}
PageTool.to_content(msg);
}
/// <summary>
/// 只负责拼接文件块。将接收的文件块数据写入到文件中。
/// 更新记录：
/// 2012-04-12 更新文件大小变量类型，增加对2G以上文件的支持。
/// 2012-04-18 取消更新文件上传进度信息逻辑。
/// 2012-10-30 增加更新文件进度功能。
/// 2015-03-19 文件路径由客户端提供，此页面不再查询文件在服务端的路径。减少一次数据库访问操作。
/// 2016-03-31 增加文件夹信息字段
/// 2017-07-11 优化参数检查逻辑
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
protected void Page_Load(object sender, EventArgs e)
{
string uid = this.headString("uid");
string f_id = this.headString("id");
string lenSvr = this.headString("lenSvr"); //已传大小
string lenLoc = this.headString("lenLoc"); //本地文件大小
string blockOffset = this.headString("blockOffset");
string blockSize = this.headString("blockSize"); //当前块大小
string blockIndex = this.headString("blockIndex"); //当前块索引，基于1
string blockMd5 = this.headString("blockMd5"); //块MD5
string complete = this.headString("complete"); //true/false
string pathSvr = Request.Form["pathSvr"]; //
string pathLoc = string.Empty;
string token = this.headString("token"); //
pathSvr = Server.UrlDecode(pathSvr);
if (!this.safe_check(lenLoc, uid, f_id, blockOffset, pathSvr))
{
return;
}
//有文件块数据
if (Request.Files.Count > 0)
{
bool verify = false;
string msg = string.Empty;
string md5Svr = string.Empty;
HttpPostedFile file = Request.Files.Get(0);//文件块
var stm = file.InputStream;
var stmLen = int.Parse(blockSize);
pathLoc = file.FileName;
//加密
ConfigReader cr = new ConfigReader();
var sec = cr.module("path");
var encrypt = (bool)sec.SelectToken("$.security.encrypt");
if (encrypt)
{
CryptoTool ct = new CryptoTool();
pathSvr = ct.decode(pathSvr);
stm = ct.decode(file.InputStream, int.Parse(blockSize));
}
//token验证
WebSafe ws = new WebSafe();
FileInf fileSvr = new FileInf();
fileSvr.id = f_id;
fileSvr.pathLoc = file.FileName;
fileSvr.pathSvr = pathSvr;
FileInfo fi = new FileInfo(pathLoc);
fileSvr.nameLoc = fi.Name;
verify = ws.validToken(token, fileSvr, "block");
//token验证失败
if (!verify)
{
msg = string.Format("token error loc:{0}", token);
}
//计算文件块MD5
if (!string.IsNullOrEmpty(blockMd5))
{
md5Svr = Md5Tool.calc(stm);
}
//文件块大小验证
if (verify)
{
verify = int.Parse(blockSize) == stm.Length;
}
if (!verify)
{
msg = "block size error sizeSvr:" + stm.Length + " sizeLoc:" + blockSize;
}
//块MD5验证
if (verify && !string.IsNullOrEmpty(blockMd5))
{
verify = md5Svr == blockMd5;
if (!verify)
{
msg = "block md5 error";
}
}
if (verify)
{
PathBuilder pb = new PathBuilder();
pathSvr = pb.relToAbs(pathSvr);
//2.0保存文件块数据
FileBlockWriter res = new FileBlockWriter();
res.make(pathSvr, Convert.ToInt64(lenLoc));
res.write(pathSvr, Convert.ToInt64(blockOffset), stm);
up6_biz_event.file_post_block(f_id, Convert.ToInt32(blockIndex));
//生成信息
JObject o = new JObject();
o["msg"] = "ok";
o["md5"] = md5Svr; //文件块MD5
o["offset"] = blockOffset; //偏移
msg = JsonConvert.SerializeObject(o);
}
this.toContentJson(msg);
}
}