WebClient.DownloadFile creates an error ??

[Chris]

Hi,

I try to download a file using the following :

WebClient client = new WebClient();
client.Credentials = new NetworkCredential("Administrator",
"test","MYPC");
client.DownloadFile("http://localhost/afile.txt", "c:\\test.txt");

but I get an error :
The remote server returned an error: (403) Forbidden.

how come ?

thanks
Chris

(I'm executing everything on my machine where I'm logged in as
'Administrator')

 

[Patrice]

What if you point your browser to http://localhost/afile.txt ? (in
partiuclar are you prompted with the domaion name and is the domain name
correct ?)

 

[Patrice]

Hummm, just to make sure, do you have some code that actually uses the
credentials you created ? If not see the "Credentials" property :
http://msdn.microsoft.com/library/d...fsystemnetwebclientclassdownloadfiletopic.asp

If you have some additional code you may want to post all the relevant
code...

Patrice

 

[Chris]

Hi Patrice,

actually I just want to download a file for which I have the url. (The file
is not visualized nowhere in the browser)

what are the possibilities ?

thanks
Chris

 

[Patrice]

I unsderstood. Just wanted to know it it works manually especially with this
exact credentials.

Check also my other post (did you omitted the code that uses the credentials
or is this code missing from your code ?)

--

 

[Chris]

Without the credential-code ...
client.Credentials = new NetworkCredential("Administrator",
"nav01ils","PC-
WIN2000");

.... do I get the error
The remote server returned an error: (401) Unauthorized

With the credential-code do I get the error
The remote server returned an error: (403) Forbidden.

 

[Patrice]

And are you able to access this file when using a browser and entering
manually these credentials ? This is to find out if the problem is rather in
the code or if there is something wrong regarding the security settings.

Also the code I saw uses generally a CredentialCache. In particular it
allows to specify the authentication method to use. I believe it could miss
from your code :
(taken from the doc) :

CredentialCache myCache = new CredentialCache();

myCache.Add(new Uri("http://www.contoso.com/"),"Basic",new
NetworkCredential(UserName,SecurelyStoredPassword));
myCache.Add(new Uri("http://www.contoso.com/"),"Digest", new
NetworkCredential(UserName,SecurelyStoredPassword,Domain));

wReq.Credentials = myCache;

See :
http://msdn.microsoft.com/library/d...rlrfsystemnetcredentialcacheclassaddtopic.asp
for details...

So I would check first :
- security is ok, I can access the ressource manually with these exact same
credentials
- then I would try to use a credential cache to specifiy the URI as well as
the authentication method used
- if it wokrs I woukld then, eventually try to use directly the Credentials
(I'm really not sure what the .NET library does when these informations
can't be found from the CredentialCache).

Patrice
--