[C#] Nahrávání souboru na server – .NET – Fórum – Programujte.com

Ahoj,
mám takový problém: nahrávám fotky z lokálního počítače na server, kde jsou uloženy webovky. Pokud pustím tento kód:

using System;

using System.Collections.Generic;

using System.ComponentModel;

using System.Data;

using System.Drawing;

using System.Linq;

using System.Text;

using System.Windows.Forms;

using System.Net;

using System.IO;



namespace Pokus_nahravani

{

    public partial class Form1 : Form

    {

        public Form1()

        {

            InitializeComponent();

        }



        private void button1_Click(object sender, EventArgs e)

        {

            Application.Exit();

        }



        private void Form1_Load(object sender, EventArgs e)

        {

            FtpWebRequest request = (FtpWebRequest)FtpWebRequest.Create("ftp://www.zs-dukelska.strakonice.eu/nahravani/pokus.jpg");



            request.Method = WebRequestMethods.Ftp.UploadFile;

            request.Credentials = new NetworkCredential("uz_jmeno", "heslo");

            request.UsePassive = true;

            request.UseBinary = true;

            request.KeepAlive = false;



            request.Proxy = null;



            FileStream stream = File.OpenRead(@"C:\pokus.jpg");

            byte[] buffer = new byte[stream.Length];



            stream.Read(buffer, 0, buffer.Length);

            stream.Close();





            Stream reqStream = request.GetRequestStream();

            reqStream.Write(buffer, 0, buffer.Length);

            reqStream.Close();

        }

    }

}

using System;

using System.Collections.Generic;

using System.ComponentModel;

using System.Data;

using System.Drawing;

using System.Text;

using System.Windows.Forms;

using System.Net;

using System.IO;



namespace Nahravani_fotek

{

    public partial class Form1 : Form

    {

        string domena = "http://www.zs-dukelska.strakonice.eu/nahravani/";

        bool nahraj = false;

        string[] delete = new string[1000];

        string[] nazvy = new string[1000];

        int poradi = 0;

        string zkratka2 = "";

        string nazev;

        Bitmap obr;

        string pripona;

        string slozka;

        string adresa;

        int pozice;

        string zkratka;



        public Form1()

        {

            InitializeComponent();

        }



        private void Form1_Load(object sender, EventArgs e)

        {

            /*prohlizec.Navigate(domena + "dostupne.php");*/

	    nahraj_server(@"C:\pokus.jpg", "pokus.jpg");

        }



        private void timer1_Tick(object sender, EventArgs e)

        {

            timer1.Enabled = false;

            nahraj_fotky();

        }



        private void nahraj_fotky()

        {

            poradi = 0;



            adresa = prohlizec.Url.ToString();

            pozice = 2;

            for (int i = adresa.Length - 1; i >= 0; i--)

            {

                if (adresa.Substring(i, 1) == "=")

                    pozice = i;

            }

            zkratka = adresa.Substring(pozice + 1, adresa.Length - 1 - pozice);

            zkratka2 = zkratka;



            DialogResult dlg = openFileDialog1.ShowDialog();

            if (dlg != DialogResult.Cancel)

            {

                    prohlizec.Navigate(domena + "nahravam.php");

                    

                    nazev = openFileDialog1.FileName;

                    slozka = System.IO.Path.GetDirectoryName(nazev);



                    timer3.Enabled = true;

            }

            else

                nahraj_fotky();

        }



        private void zmensi(Bitmap obr, int maxw, int maxh, string kam)

        {

            int w = 800;

            int h = 600;

            if (obr.Width > maxw || obr.Height > maxh)

            {

                float k = 1;



                if (obr.Width > maxw)

                {

                    k = Convert.ToSingle(obr.Width) / Convert.ToSingle(maxw);

                    w = maxw;

                    h = Convert.ToInt32(Convert.ToSingle(obr.Height) / k);

                }



                if (h > maxh || k == 1)

                {

                    k = Convert.ToSingle(obr.Height) / Convert.ToSingle(maxh);

                    w = Convert.ToInt32(Convert.ToSingle(obr.Width) / k);

                    h = maxh;

                }



            }

            else

            {

                w = obr.Width;

                h = obr.Height;

            }



            Bitmap obr2 = new Bitmap(w, h);

            Graphics g = Graphics.FromImage(obr2);

            g.DrawImage(obr, 0, 0, w, h);

            g.Dispose();



            /*obr2.Save(@"C:\www\dukelka5\nahravani\" + zkratka + @"\" + System.IO.Path.GetFileName(nazev2), System.Drawing.Imaging.ImageFormat.Jpeg);*/

            /*obr2.Save(slozka + @"\" + zkratka + System.IO.Path.GetFileName(nazev2), System.Drawing.Imaging.ImageFormat.Jpeg);*/

            obr2.Save(kam, System.Drawing.Imaging.ImageFormat.Jpeg);

        }



        private void nahraj_fotku(int jakafot)

        {

            int pokusu = 0;



            try

            {

                pokusu++;

                /*Client.UploadFile(@"/nahravani/" + zkratka2 + @"\" + nazvy[jakafot], delete[jakafot]);*/

                nahraj_server(delete[jakafot], zkratka2 + @"\" + nazvy[jakafot]);

            }

            catch

            {

                if (pokusu <= 5)

                    nahraj_fotku(jakafot);

                return;

            }

        }



        private void prohlizec_DocumentCompleted(object sender, WebBrowserDocumentCompletedEventArgs e)

        {

            string adresa = prohlizec.Url.ToString();

            string dok = domena + "nahrani.php";



            if (adresa.Substring(0, dok.Length) == dok)

            {

                nahraj = true;

                timer1.Enabled = true;

            }

        }



        private void timer2_Tick(object sender, EventArgs e)

        {

            bool vsechny = true;



            for (int i = 0; i < poradi; i++)

            {

                if (File.Exists(delete[i]))

                {

                    vsechny = false;

                    File.Delete(delete[i]);

                }

                

            }



            if (vsechny)

            {

                timer2.Enabled = false;

                prohlizec.Navigate(domena + "uloz.php");

            }

        }



        private void timer3_Tick(object sender, EventArgs e)

        {

            timer3.Enabled = false;



            foreach (string nazev2 in System.IO.Directory.GetFiles(slozka))

            {

                try

                {

                    pripona = System.IO.Path.GetExtension(nazev2);



                    if (pripona.ToLower() == ".jpg" ||

                        pripona.ToLower() == ".jpeg" ||

                        pripona.ToLower() == ".png")

                    {

                        obr = (Bitmap)Bitmap.FromFile(nazev2);

                        int velikost = 0;

                        string cesta = slozka + @"\" + zkratka + System.IO.Path.GetFileName(nazev2);

                        int prubeh = 0;



                        do

                        {

                            zmensi(obr, 800 - prubeh * 25, 600 - prubeh * 25, cesta);

                            velikost = Convert.ToInt32(new FileInfo(cesta).Length);



                            prubeh++;

                        } while (velikost > 1024 * 500);



                        delete[poradi] = slozka + @"\" + zkratka + System.IO.Path.GetFileName(nazev2);

                        nazvy[poradi] = System.IO.Path.GetFileName(nazev2);

                        poradi++;

                    }

                }

                catch

                {



                }

            }



            for (int i = 0; i < poradi; i++)

            {

                nahraj_fotku(i);

            }



            timer2.Enabled = true;

        }



        private void nahraj_server(string soubor, string budnazev)

        {

            FtpWebRequest request = (FtpWebRequest)FtpWebRequest.Create("ftp://www.zs-dukelska.strakonice.eu/nahravani/" + budnazev);



            request.Method = WebRequestMethods.Ftp.UploadFile;

            request.Credentials = new NetworkCredential("uz_jmeno", "heslo");

            request.UsePassive = true;

            request.UseBinary = true;

            request.KeepAlive = false;



            request.Proxy = null;



            FileStream stream = File.OpenRead(soubor);

            byte[] buffer = new byte[stream.Length];



            stream.Read(buffer, 0, buffer.Length);

            stream.Close();





            Stream reqStream = request.GetRequestStream();

            reqStream.Write(buffer, 0, buffer.Length);

            reqStream.Close();

        }

    }

}

Stream reqStream = request.GetRequestStream();

namespace Nahravani_fotek

{

    partial class Form1

    {

        /// <summary>

        /// Required designer variable.

        /// </summary>

        private System.ComponentModel.IContainer components = null;



        /// <summary>

        /// Clean up any resources being used.

        /// </summary>

        /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>

        protected override void Dispose(bool disposing)

        {

            if (disposing && (components != null))

            {

                components.Dispose();

            }

            base.Dispose(disposing);

        }



        #region Windows Form Designer generated code



        /// <summary>

        /// Required method for Designer support - do not modify

        /// the contents of this method with the code editor.

        /// </summary>

        private void InitializeComponent()

        {

            this.components = new System.ComponentModel.Container();

            this.prohlizec = new System.Windows.Forms.WebBrowser();

            this.timer1 = new System.Windows.Forms.Timer(this.components);

            this.openFileDialog1 = new System.Windows.Forms.OpenFileDialog();

            this.timer2 = new System.Windows.Forms.Timer(this.components);

            this.timer3 = new System.Windows.Forms.Timer(this.components);

            this.SuspendLayout();

            // 

            // prohlizec

            // 

            this.prohlizec.Dock = System.Windows.Forms.DockStyle.Fill;

            this.prohlizec.Location = new System.Drawing.Point(0, 0);

            this.prohlizec.MinimumSize = new System.Drawing.Size(20, 20);

            this.prohlizec.Name = "prohlizec";

            this.prohlizec.Size = new System.Drawing.Size(912, 435);

            this.prohlizec.TabIndex = 0;

            this.prohlizec.DocumentCompleted += new System.Windows.Forms.WebBrowserDocumentCompletedEventHandler(this.prohlizec_DocumentCompleted);

            // 

            // timer1

            // 

            this.timer1.Interval = 2000;

            this.timer1.Tick += new System.EventHandler(this.timer1_Tick);

            // 

            // openFileDialog1

            // 

            this.openFileDialog1.FileName = "openFileDialog1";

            // 

            // timer2

            // 

            this.timer2.Interval = 10000;

            this.timer2.Tick += new System.EventHandler(this.timer2_Tick);

            // 

            // timer3

            // 

            this.timer3.Interval = 500;

            this.timer3.Tick += new System.EventHandler(this.timer3_Tick);

            // 

            // Form1

            // 

            this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);

            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;

            this.AutoSizeMode = System.Windows.Forms.AutoSizeMode.GrowAndShrink;

            this.ClientSize = new System.Drawing.Size(912, 435);

            this.Controls.Add(this.prohlizec);

            this.MaximizeBox = false;

            this.Name = "Form1";

            this.Text = "Nahrávání fotek";

            this.Load += new System.EventHandler(this.Form1_Load);

            this.ResumeLayout(false);



        }



        #endregion



        private System.Windows.Forms.WebBrowser prohlizec;

        private System.Windows.Forms.Timer timer1;

        private System.Windows.Forms.OpenFileDialog openFileDialog1;

        private System.Windows.Forms.Timer timer2;

        private System.Windows.Forms.Timer timer3;

    }

}

Ahoj,

nejspis bude chyba nekde v komunikaci Tveho klienta se serverem. Zkus pouzit nejaky packet sniffer (napr. EtheReal), abys prozkoumal komunikaci doma a ve skole a nasledne ji porovnal. Mozna je ve skole nejaky router nebo proxy, ktery do te komunikace zasahuje.

1. urcite to bude firewall
2. nie je to Ethereal ale Wireshark