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Posted to httpclient-users@hc.apache.org by "Laat, Harm de" <Ha...@essent.nl> on 2005/12/20 13:51:01 UTC
ftp via http
Hi all,
I'm trying to access a FTP server via a HTTP proxy server (in this case
Microsoft ISA server).
I have to authenticate with my FTP server. So I tried to incorporate my
username and password in the ftp url:
ftp://test:test@xxx.xxx.xxx.xxx/test
However, no luck just yet... I have also tried to set the username and
password with the setCredentials method. Also without luck.
Can somebody please help???
I have written the following code:
// imports //
public class TestClient {
public static void main(String[] args) {
new TestClient().testFtpViaHttp();
}
public void testFtpViaHttp() {
HttpClient client = new HttpClient();
HostConfiguration hostConfig = client.getHostConfiguration();
hostConfig.setProxy("proxy", 8080);
client.setHostConfiguration(hostConfig);
Protocol protol = new Protocol("ftp", new
DefaultProtocolSocketFactory(), 21);
Protocol.registerProtocol("ftp", protol);
Credentials proxyCreds = new NTCredentials("username", "pass","",
"DOMAIN" );
client.getState().setProxyCredentials(AuthScope.ANY, proxyCreds);
GetMethod gmethod = new GetMethod("ftp://xxx.xxx.xxx.xxx/test/");
gmethod.getParams().setParameter(HttpMethodParams.RETRY_HANDLER,
new DefaultHttpMethodRetryHandler(3, false));
try {
// Execute the method.
int statusCode = client.executeMethod(gmethod);
if (statusCode != HttpStatus.SC_OK) {
System.err.println("Method failed: " +
gmethod.getStatusLine());
}
// Read the response body.
byte[] responseBody = gmethod.getResponseBody();
// Deal with the response.
// Use caution: ensure correct character encoding and is not
binary data
System.out.println(new String(responseBody));
} catch (HttpException e) {
System.err.println("Fatal protocol violation: " +
e.getMessage());
e.printStackTrace();
} catch (IOException e) {
System.err.println("Fatal transport error: " + e.getMessage());
e.printStackTrace();
} finally {
// Release the connection.
gmethod.releaseConnection();
}
}
}
Regards,
Harm de Laat
Re: ftp via http
Posted by Roland Weber <RO...@de.ibm.com>.
Hi Oleg,
> Actually some web proxies are capable of executing FTP requests on the
> client's behalf. So, this is a legitimate usage of HttpClient
So the HTTP request with an ftp: URL is translated by the proxy
to an FTP transaction, and the result is returned via HTTP?
Interesting. Thanks for telling me, I wasn't aware of that.
cheers,
Roland
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Re: ftp via http
Posted by Oleg Kalnichevski <ol...@apache.org>.
On Tue, Dec 20, 2005 at 03:14:39PM +0100, Roland Weber wrote:
> Hello Harm,
>
> FTP and HTTP are completely different protocols.
> You can not use HttpClient to access an FTP server.
>
> You may be able to tunnel FTP via an HTTP proxy,
> but HttpClient will only help you with the tunnelling.
> You still have to implement FTP yourself, including
> the authentication against the FTP server.
>
> cheers,
> Roland
>
Roland,
Actually some web proxies are capable of executing FTP requests on the
client's behalf. So, this is a legitimate usage of HttpClient
Harm,
Please send a wire/context log of the HTTP session that exhibits the
problem
Oleg
>
>
>
> "Laat, Harm de" <Ha...@essent.nl>
> 20.12.2005 13:51
> Please respond to
> "HttpClient User Discussion"
>
>
> To
> "'httpclient-user@jakarta.apache.org'"
> <ht...@jakarta.apache.org>
> cc
>
> Subject
> ftp via http
>
>
>
>
>
>
> Hi all,
>
> I'm trying to access a FTP server via a HTTP proxy server (in this case
> Microsoft ISA server).
>
> I have to authenticate with my FTP server. So I tried to incorporate my
> username and password in the ftp url:
>
> ftp://test:test@xxx.xxx.xxx.xxx/test
>
> However, no luck just yet... I have also tried to set the username and
> password with the setCredentials method. Also without luck.
>
> Can somebody please help???
>
>
>
> I have written the following code:
>
>
> // imports //
>
> public class TestClient {
>
> public static void main(String[] args) {
> new TestClient().testFtpViaHttp();
> }
>
> public void testFtpViaHttp() {
>
> HttpClient client = new HttpClient();
>
> HostConfiguration hostConfig = client.getHostConfiguration();
> hostConfig.setProxy("proxy", 8080);
> client.setHostConfiguration(hostConfig);
>
> Protocol protol = new Protocol("ftp", new
> DefaultProtocolSocketFactory(), 21);
> Protocol.registerProtocol("ftp", protol);
>
> Credentials proxyCreds = new NTCredentials("username", "pass","",
> "DOMAIN" );
> client.getState().setProxyCredentials(AuthScope.ANY, proxyCreds);
>
> GetMethod gmethod = new GetMethod("ftp://xxx.xxx.xxx.xxx/test/");
>
> gmethod.getParams().setParameter(HttpMethodParams.RETRY_HANDLER,
> new DefaultHttpMethodRetryHandler(3, false));
>
> try {
> // Execute the method.
> int statusCode = client.executeMethod(gmethod);
>
> if (statusCode != HttpStatus.SC_OK) {
> System.err.println("Method failed: " +
> gmethod.getStatusLine());
> }
>
> // Read the response body.
> byte[] responseBody = gmethod.getResponseBody();
>
> // Deal with the response.
> // Use caution: ensure correct character encoding and is not
> binary data
> System.out.println(new String(responseBody));
>
> } catch (HttpException e) {
> System.err.println("Fatal protocol violation: " +
> e.getMessage());
> e.printStackTrace();
> } catch (IOException e) {
> System.err.println("Fatal transport error: " +
> e.getMessage());
> e.printStackTrace();
> } finally {
> // Release the connection.
> gmethod.releaseConnection();
> }
>
> }
>
> }
>
>
> Regards,
>
> Harm de Laat
>
>
>
>
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> To unsubscribe, e-mail: httpclient-user-unsubscribe@jakarta.apache.org
> For additional commands, e-mail: httpclient-user-help@jakarta.apache.org
>
>
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Re: ftp via http
Posted by Roland Weber <RO...@de.ibm.com>.
Hello Harm,
FTP and HTTP are completely different protocols.
You can not use HttpClient to access an FTP server.
You may be able to tunnel FTP via an HTTP proxy,
but HttpClient will only help you with the tunnelling.
You still have to implement FTP yourself, including
the authentication against the FTP server.
cheers,
Roland
"Laat, Harm de" <Ha...@essent.nl>
20.12.2005 13:51
Please respond to
"HttpClient User Discussion"
To
"'httpclient-user@jakarta.apache.org'"
<ht...@jakarta.apache.org>
cc
Subject
ftp via http
Hi all,
I'm trying to access a FTP server via a HTTP proxy server (in this case
Microsoft ISA server).
I have to authenticate with my FTP server. So I tried to incorporate my
username and password in the ftp url:
ftp://test:test@xxx.xxx.xxx.xxx/test
However, no luck just yet... I have also tried to set the username and
password with the setCredentials method. Also without luck.
Can somebody please help???
I have written the following code:
// imports //
public class TestClient {
public static void main(String[] args) {
new TestClient().testFtpViaHttp();
}
public void testFtpViaHttp() {
HttpClient client = new HttpClient();
HostConfiguration hostConfig = client.getHostConfiguration();
hostConfig.setProxy("proxy", 8080);
client.setHostConfiguration(hostConfig);
Protocol protol = new Protocol("ftp", new
DefaultProtocolSocketFactory(), 21);
Protocol.registerProtocol("ftp", protol);
Credentials proxyCreds = new NTCredentials("username", "pass","",
"DOMAIN" );
client.getState().setProxyCredentials(AuthScope.ANY, proxyCreds);
GetMethod gmethod = new GetMethod("ftp://xxx.xxx.xxx.xxx/test/");
gmethod.getParams().setParameter(HttpMethodParams.RETRY_HANDLER,
new DefaultHttpMethodRetryHandler(3, false));
try {
// Execute the method.
int statusCode = client.executeMethod(gmethod);
if (statusCode != HttpStatus.SC_OK) {
System.err.println("Method failed: " +
gmethod.getStatusLine());
}
// Read the response body.
byte[] responseBody = gmethod.getResponseBody();
// Deal with the response.
// Use caution: ensure correct character encoding and is not
binary data
System.out.println(new String(responseBody));
} catch (HttpException e) {
System.err.println("Fatal protocol violation: " +
e.getMessage());
e.printStackTrace();
} catch (IOException e) {
System.err.println("Fatal transport error: " +
e.getMessage());
e.printStackTrace();
} finally {
// Release the connection.
gmethod.releaseConnection();
}
}
}
Regards,
Harm de Laat
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