예제 #1
0
    protected void Submit(object sender, EventArgs e)
    {
        try
        {
            int uploadid = Convert.ToInt32(Request.QueryString["docid"]);
            ManageDocPermissions objperm = new ManageDocPermissions();


            foreach (GridViewRow row in grdusers.Rows)
            {
                CheckBox cb = (CheckBox)row.FindControl("selectact");
                if (cb != null && cb.Checked)
                {
                    value = 0;
                    string memberid = grdusers.DataKeys[row.RowIndex].Value.ToString();

                    if (objperm.NewPermission(uploadid, memberid))
                    {
                        value = 1;
                    }

                    string      userid = Convert.ToString(Session["userid"]);
                    RecordUsage rec    = new RecordUsage();
                    rec.record(userid, "permission");
                }
            }
        }
        catch (Exception ex) { value = 0; }
        if (value == 1)
        {
            message = "Document access permission allotted to members successfully..";
            title   = "Success Report";
            FillGrid();
        }
        else if (value == 0)
        {
            message = "Permission allottment failed.. Try again..";
            title   = "Failure Report";
        }

        string script = "window.onload = function(){ alert('";

        script += message;
        script += "')};";
        ClientScript.RegisterStartupScript(this.GetType(), title, script, true);
    }
    protected void Page_Load(object sender, EventArgs e)
    {
        try
        {
            Response.Cache.SetExpires(DateTime.UtcNow.AddMinutes(-1));
            Response.Cache.SetCacheability(HttpCacheability.NoCache);
            Response.Cache.SetNoStore();

            userid = Convert.ToString(Session["userid"]);
            utype  = Convert.ToString(Session["utype"]);

            if (userid == "undefined" && utype != "user")
            {
                Response.Redirect("Invalid.aspx");
            }
        }
        catch (Exception ex) { }

        try
        {
            int docid = Convert.ToInt32(Request.QueryString["docid"]);


            GetDocumentDetails dtl = new GetDocumentDetails(docid);

            string docname  = dtl.DocFileName;
            string docowner = dtl.DocOwner;

            string filePath = Server.MapPath("UserDocs/") + docowner + "/";


            string newpath = "/UserDocs/" + docowner;

            BackupHost info       = new BackupHost();
            string     remotepath = "http://" + info.StorageHostName + ":" + info.StorageHostPort + newpath;
            string     backuppath = "http://" + info.BackupHostName + ":" + info.BackupHostPort + newpath;

            if (FileToDownload(remotepath, docname, filePath, docowner))
            {
                Global.DocDownloadPath = "UserDocs/" + docowner + "/" + docname;
                // Response.Write(Global.DocDownloadPath);
                Panel1.Visible = true;
                Panel2.Visible = false;

                string      userid = Convert.ToString(Session["userid"]);
                RecordUsage rec    = new RecordUsage();
                rec.record(userid, "download");
                rec.record(userid, "decryption");
            }
            else if (FileToDownload(backuppath, docname, filePath, docowner))
            {
                //Global.DocDownloadPath = filePath  + docname;
                Global.DocDownloadPath = "UserDocs/" + docowner + "/" + docname;
                // Response.Write(Global.DocDownloadPath);
                Panel1.Visible = true;
                Panel2.Visible = false;

                string      userid = Convert.ToString(Session["userid"]);
                RecordUsage rec    = new RecordUsage();
                rec.record(userid, "download");
                rec.record(userid, "decryption");
                rec.record(userid, "recovery");
            }
            else
            {
                Panel1.Visible = false;
                Panel2.Visible = true;
            }

            // else recover the file from backup server
            // calculate its hash after decryption and allow it to download
        }
        catch (Exception ex) { }
    }
    protected void Process(object source, DataListCommandEventArgs e)
    {
        int docid = 0;

        try
        {
            string commandname = e.CommandName.ToString();
            docid = Convert.ToInt32(Convert.ToString(e.CommandArgument));

            if (commandname == "download")
            {
                value = 2;
            }
            if (commandname == "askkey")
            {
                string           userid = Convert.ToString(Session["userid"]);
                GetClientDetails cdtl   = new GetClientDetails(userid);
                string           name   = cdtl.ClientName;
                string           email  = cdtl.ClientEmailId;

                DocKeysGenerator gen = new DocKeysGenerator();
                gen.GetDocUserKey(docid);
                string seckey = gen.DocUserKey;

                GetDocumentDetails dtl      = new GetDocumentDetails(docid);
                string             doctitle = dtl.DocTitle;
                string             docowner = dtl.DocOwner;
                string             size     = dtl.DocSize + " bytes";

                EmailService mail = new EmailService();
                mail.sendSecKey(email, seckey, name, doctitle, docowner, size);

                value = 1;

                RecordUsage rec = new RecordUsage();
                rec.record(userid, "askkey");
            }
        }
        catch (Exception ex)
        {
            value = 0;
        }

        if (value == 2)
        {
            Response.Redirect("SecKeyAuthentication.aspx?docid=" + docid);
        }

        else if (value == 1)
        {
            message = "Secrete key generated successfully. Key is sent on your registered emailid.";
            title   = "Success Report";
        }
        else if (value == 0)
        {
            message = "Sorry.!! Secrete key generation failed.. Try again..";
            title   = "Failure Report";
        }

        string script = "window.onload = function(){ alert('";

        script += message;
        script += "')};";
        ClientScript.RegisterStartupScript(this.GetType(), title, script, true);
    }
예제 #4
0
    protected void Submit(object sender, EventArgs e)
    {
        CloudFuns obj    = new CloudFuns();
        int       docid  = obj.FetchMax("uploads", "uploadid");
        string    userid = Convert.ToString(Session["userid"]);

        string newname = "NA", encfilename = "", filePath = "", metaxml = "";
        string input = "", output = "", seckey = "", ext = "";

        long sizebytes = 0;

        int    dd    = DateTime.Now.Day;
        int    mm    = DateTime.Now.Month;
        int    yy    = DateTime.Now.Year;
        string today = dd + "-" + mm + "-" + yy;

        int    hr  = DateTime.Now.Hour;
        string now = hr + ":" + DateTime.Now.Minute + ":" + DateTime.Now.Second;

        try
        {
            if (filedocument.HasFile)
            {
                string filename = filedocument.FileName;
                ext      = System.IO.Path.GetExtension(filename);
                filePath = Server.MapPath("UserDocs/") + userid + "/";

                metaxml = docid + "_xml.xml";

                if (!Directory.Exists(filePath))
                {
                    Directory.CreateDirectory(filePath);
                }

                newname = "doc" + docid + ext;

                //---------------------------------
                input       = filePath + "/" + newname;
                encfilename = "doc" + docid + "_enc" + ext;
                output      = filePath + "/" + encfilename;

                if (File.Exists(input))
                {
                    File.Delete(input);
                }
                // save file for encryption
                filedocument.SaveAs(input);

                // Calculate SHA Hash of the original document
                SHATracker track    = new SHATracker();
                string     shavalue = track.GetSHA1Hash(input);

                FileInfo f = new FileInfo(input);
                sizebytes = f.Length;

                // Generate Keys

                Random r = new Random();
                seckey = "SEC" + docid + "@" + r.Next(111, 999);

                string dockey = docid + newname + "|D@C_" + now.Replace(":", "");

                // read all bytes from uploaded file
                byte[] file = System.IO.File.ReadAllBytes(input);

                // reverse and store file bytes into another byte array
                int filelength = file.Length;

                int    index    = filelength - 1;
                byte[] rev_file = new byte[filelength];
                foreach (byte b in file)
                {
                    rev_file[index] = b;
                    index--;
                }

                // create a file from reversed bytes and store on local server
                string rev_file_path = filePath + "/rev_file" + docid + ext;

                try
                {
                    if (File.Exists(rev_file_path))
                    {
                        FileStream fs = new FileStream(rev_file_path, FileMode.Open, FileAccess.Read, FileShare.None);
                        fs.Close();
                        File.Delete(rev_file_path);
                    }
                }
                catch (Exception ex) { }

                File.WriteAllBytes(rev_file_path, rev_file);

                // encrypt the file

                if (File.Exists(output))
                {
                    File.Delete(output);
                }

                Cryptography cobj = new Cryptography();
                cobj.EncryptAES(rev_file_path, output, dockey);

                // Store data in DB
                ArrayList data = new ArrayList();
                data.Clear();
                data.Add(docid);
                data.Add(txttitle.Text);
                data.Add(sizebytes);
                data.Add(txtdesc.Text);
                data.Add(userid);
                data.Add(metaxml);
                data.Add(dockey);
                data.Add(seckey);
                data.Add(today);
                data.Add(now);
                data.Add(encfilename);


                ManageDocuments dobj = new ManageDocuments();

                if (dobj.NewDoc(data))
                {
                    // create metadata XML file and store on local server
                    DataSet dsxml = new DataSet();
                    dsxml.Tables.Add();

                    dsxml.Tables[0].Columns.Add();
                    dsxml.Tables[0].Columns[0].ColumnName = "dochash";
                    dsxml.Tables[0].Columns.Add();
                    dsxml.Tables[0].Columns[1].ColumnName = "uploaddt";
                    dsxml.Tables[0].Columns.Add();
                    dsxml.Tables[0].Columns[2].ColumnName = "uploadtime";
                    dsxml.Tables[0].Columns.Add();
                    dsxml.Tables[0].Columns[3].ColumnName = "docid";

                    dsxml.Tables[0].Rows.Add();
                    dsxml.Tables[0].Rows[0][0] = shavalue;
                    dsxml.Tables[0].Rows[0][1] = today;
                    dsxml.Tables[0].Rows[0][2] = now;
                    dsxml.Tables[0].Rows[0][3] = docid;

                    if (File.Exists(filePath + metaxml))
                    {
                        File.Delete(filePath + metaxml);
                    }

                    dsxml.WriteXml(filePath + metaxml);

                    // store file on storage and backup server
                    BackupHost info           = new BackupHost();
                    WebClient  oclient        = new WebClient();
                    byte[]     responseArray  = oclient.UploadFile("http://" + info.StorageHostName + ":" + info.StorageHostPort + "/Receiver.aspx?path=" + userid, "POST", output);
                    byte[]     responseArray1 = oclient.UploadFile("http://" + info.BackupHostName + ":" + info.BackupHostPort + "/Receiver.aspx?path=" + userid, "POST", output);



                    value = 1;

                    if (File.Exists(input))
                    {
                        File.Delete(input);
                    }

                    if (File.Exists(output))
                    {
                        File.Delete(output);
                    }

                    try
                    {
                        if (File.Exists(rev_file_path))
                        {
                            FileStream fs = null;
                            try
                            {
                                fs = new FileStream(rev_file_path, FileMode.Open, FileAccess.ReadWrite, FileShare.None);
                                fs.Close();
                            }
                            catch (Exception ex) { }
                            File.Delete(rev_file_path);
                        }
                    }
                    catch (Exception ex) { }


                    GetClientDetails dtl   = new GetClientDetails(userid);
                    string           name  = dtl.ClientName;
                    string           email = dtl.ClientEmailId;

                    EmailService mail = new EmailService();
                    mail.sendSecKey(email, seckey, name, txttitle.Text);

                    RecordUsage rec = new RecordUsage();
                    rec.record(userid, "upload");
                    rec.record(userid, "encryption");
                }
                else
                {
                    value = 0;
                }
            }
        }
        catch (Exception ex) { value = 0; }

        if (value == 1)
        {
            message = "File uploaded successfully..";
            title   = "Success Report";
        }
        else if (value == 0)
        {
            message = "Sorry.!! File upload failed.. Try again..";
            title   = "Failure Report";
        }

        string script = "window.onload = function(){ alert('";

        script += message;
        script += "')};";
        ClientScript.RegisterStartupScript(this.GetType(), title, script, true);
        ClearInputs(Page.Controls);
    }