Rendering image as response using absolute url

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im trying to get a image as response from a website using image's absolute url. i tried below code. response is showing but not the image is visible. i think here simple mistake is happened. please help me here.

What I have tried:

// Creates an HttpWebRequest with the specified URL.
                HttpWebRequest myWebRequest = (HttpWebRequest)WebRequest.Create("https://www.planwallpaper.com/static/images/HD-Wallpapers-C76_yCO55lB.jpg");

                myWebRequest.Method = "GET";
                myWebRequest.ContentType = "image/jpeg";

                // Sends the HttpWebRequest and waits for the response.		
                HttpWebResponse myHttpWebResponse = (HttpWebResponse)myWebRequest.GetResponse();   //HttpWebRequest_GetResponse():  Returns a response from an Internet resource.

                //get Stream Data from the response
                Stream receiveStream = myHttpWebResponse.GetResponseStream();

                //read the response from stream.
                StreamReader streamReader = new StreamReader(receiveStream);

                byte[] data = System.Text.Encoding.Default.GetBytes(streamReader.ReadToEnd());
                Response.ContentType ="image/jpeg";
                Response.BinaryWrite(data);
                Response.End();

Posted 10-Jan-18 18:23pm

rocker_003

Updated 11-Jan-18 6:53am

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4 solutions

Solution 1

If You want to Download image from url then the best way is used

System.Net.WebClient

Try This:

C#

Using System.Net.WebClient;

string imageUrl = "https://www.planwallpaper.com/static/images/HD-Wallpapers-C76_yCO55lB.jpg";
string SavePath = @"D:\Pictures\HD-Wallpapers-C76_yCO55lB.jpg";
System.Net.WebClient client = new WebClient();
client.DownloadFile(new Uri(imageUrl), SavePath);

Posted 10-Jan-18 19:18pm

Altaf Ansari

Updated 10-Jan-18 19:19pm

v2

Comments

rocker_003 11-Jan-18 1:23am

thanks but i need to show only as response, not to download it. is it possible? if possible means whats that way?

rocker_003 11-Jan-18 4:50am

help me please...im strucked here

Solution 2

Okay then try this:

C#

public void save_file_from_url(string file_name, string url)
    {
        byte[] content;
        HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url);
        WebResponse response = request.GetResponse();
 
        Stream stream = response.GetResponseStream();
 
        using (BinaryReader br = new BinaryReader(stream))
        {
            content = br.ReadBytes(500000);
            br.Close();
        }
        response.Close();
 
        FileStream fs = new FileStream(file_name, FileMode.Create);
        BinaryWriter bw = new BinaryWriter(fs);
        try
        {
            bw.Write(content);
        }
        finally
        {
            fs.Close();
            bw.Close();
        }
    }

Posted 10-Jan-18 19:31pm

Altaf Ansari

Updated 10-Jan-18 19:32pm

v2

Comments

rocker_003 11-Jan-18 2:34am

thanks.but i need to show image as response by using absolute path without downloading.
please guide me without downloading image, how to show a image response?

CHill60 11-Jan-18 7:42am

It's good practice to use the "Improve solution" link and update your original solution rather than posting a second solution - it's confusing - which one do you mean to be correct?

Solution 3

imgCapture is the id of asp image tag
protected void Page_Load(object sender, EventArgs e)
    {
        if (!this.IsPostBack)
        {
            if (Request.InputStream.Length > 0)
            {
                using (StreamReader reader = new StreamReader(Request.InputStream))
                {
                    string hexString = Server.UrlEncode(reader.ReadToEnd());
                    string imageName = "PI" + DateTime.Now.Year.ToString().Substring(1) + DateTime.Now.Month.ToString() + DateTime.Now.Day.ToString() + DateTime.Now.Minute.ToString() + DateTime.Now.Second.ToString() + DateTime.Now.Millisecond.ToString() + ".jpg";
                    Session["pimage"] = imageName;
                    string imagePath = string.Format("~/pimage/{0}", imageName);
                    File.WriteAllBytes(Server.MapPath(imagePath), ConvertHexToBytes(hexString));
                    imgCapture.ImageUrl = imagePath; 
                    Session["CapturedImage"] = ResolveUrl(imagePath);
                }
            }
        }
    }

    private static byte[] ConvertHexToBytes(string hex)
    {
        byte[] bytes = new byte[hex.Length / 2];
        for (int i = 0; i < hex.Length; i += 2)
        {
            bytes[i / 2] = Convert.ToByte(hex.Substring(i, 2), 16);
        }
        return bytes;
    }

Posted 10-Jan-18 20:16pm

Dotnet_Dotnet

Comments

rocker_003 11-Jan-18 2:34am

thanks.but i need to show image as response by using absolute path without downloading.
please guide me without downloading image, how to show a image response?

Dotnet_Dotnet 11-Jan-18 6:22am

hiI told that .First save the image in the server.
Then display in a image control.I have maintioned above.
I take the image with id imgCapture <asp:image id="imgCapture" runat="server">

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Richard Deeming · Accepted Answer · 2018-01-11T06:52:00

Quote:

//get Stream Data from the response
Stream receiveStream = myHttpWebResponse.GetResponseStream();

//read the response from stream.
StreamReader streamReader = new StreamReader(receiveStream);

byte[] data = System.Text.Encoding.Default.GetBytes(streamReader.ReadToEnd());

You're reading binary data from the remote server. You're sending binary data back to the client. So why are you converting that binary data to a string (using UTF8), and then converting it back to binary (using your server's default encoding)?

Remove that step, and that will probably fix your problem:

Stream receiveStream = myHttpWebResponse.GetResponseStream();

Response.ContentType ="image/jpeg";
receiveStream.CopyTo(Response.OutputStream);
Response.End();