Hi

I have a problem with using Uri:s with a mail-address as UserName.
Take a look at this code:

UriBuilder uriBuild = new UriBuilder();

uriBuild.Scheme = "ftp";
uriBuild.Host = "ftp.host.com";
uriBuild.Path = "path1/path2";
uriBuild.UserName = "name@mail.address.com";
uriBuild.Password = "password";

Console.WriteLine(uriBuild.ToString()); // Output is ftp://name@mail.address.com:password@ftp.host.com/path1/path2
UriBuilder uriBuild2 = new UriBuilder(uriBuild.ToString());

Last line throw an exception: Invalid URI: A port was expected because of there is a colon (':') present but the port could not be parsed
And when using it in WebClient.UploadFile also throws same expression.

The problem is the @ in the mail-address, if using any username without it everything works.
UriBuilder threats the first @ in the Uri as the separation between password and host...but it's not, the second @ is.
It doesn't matter if I also provide Port number.

Hi Alagazam

From my experience, you need to use the hex format of a special character if the character is contained in the username of the ftp path. The character @ need to be replaced with %40. So you need to change the path ftp://name@mail.address.com:password@ftp.host.com/path1/path2

to ftp://name%40mail.address.com:password@ftp.host.com/path1/path2.

Let me know if this helps.

Aland Li

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Hi Alagazam

From my experience, you need to use the hex format of a special character if the character is contained in the username of the ftp path. The character @ need to be replaced with %40. So you need to change the path ftp://name@mail.address.com:password@ftp.host.com/path1/path2

to ftp://name%40mail.address.com:password@ftp.host.com/path1/path2.

Let me know if this helps.

Aland Li

---

Please mark the replies as answers if they help and unmark if they don't. This can be beneficial to other community members reading the thread.