save image in a folder on your website without fileupload

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i have my website hosted on a server and i have a folder their named images.I am recieving a base64 string and convert it into an image and saving it in my local directory and it works perfectly.

[WebMethod]
public void UploadPics(String imageString)
{
    //HttpRequest Request = new HttpRequest();
    //HttpPostedFile filePosted = new HttpPostedFile();
    string base64String = imageString;

    // Convert Base64 String to byte[]
    byte[] imageBytes = Convert.FromBase64String(base64String);
    MemoryStream ms = new MemoryStream(imageBytes, 0, imageBytes.Length);

    // Convert byte[] to Image
    ms.Write(imageBytes, 0, imageBytes.Length);
    System.Drawing.Image image = System.Drawing.Image.FromStream(ms, true);
    //string newFile = Guid.NewGuid().ToString() + fileExtensionApplication;
    string filePath = "C:/Users/MUWebServices/App_Code/images/pic1.jpg";
    image.Save(filePath, ImageFormat.Jpeg);       
}

But when i use
string filePath = "http://mywebsite.com/images/pic1.jpg"; image.Save(filePath, ImageFormat.Jpeg);
it gives me "System.ArgumentException: URI formats are not supported" and i get it that image.save only gets local folders . So my question is how do i save my image on my website folder. I found some solutions but all were using fileUpload and i can't use that because i am receiving base64 image string from android and using this webservice to save images.

Posted 6-Jun-15 0:54am

decisive reason

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OriginalGriff · Accepted Answer · 2015-06-06T01:24:00

Solution 1

You can;t save to URL's - which is what "http://..." is: it's a URL, not a path.
Try using:

C#

string filePath = Server.MapPath("~/images/pic1.jpg");

Posted 6-Jun-15 1:24am

OriginalGriff

Comments

OriginalGriff 6-Jun-15 9:50am

When you use Server.MapPath, the "~" acts as "root directory of my website" and is translated into the appropriate hard disk path prefix.
So "~\images\pic1.jpg" would be translated to something like "D:\Websites\decisivereason\images\pic1.jpg"
In development it refers to the local HDD and your development source folder, in production it refers to the production environment.

You can't save directly onto a webserver other than the one that your web app is running on - or at least you damn well shouldn't be able to or anyone can as well. And that's a bad idea - you would have no idea what anyone on the internet was storing in "your name" or what changes they would make to your files!

If you need to save on a remote server, then use FTP and a good strong password!

decisive reason 6-Jun-15 9:50am

dude , thank u so so much , that solved my problem :D
u have no idea i actually wasted 1.5 days solving this problem . anyways thanks a ton :)

OriginalGriff 6-Jun-15 10:00am

You're welcome!