MATLAB: Http username password MatLab2011b

httppasswordurlusername

Hi,
I am trying to download data from a http site which requires our username and password.
[state,HTTP]=urlread(strcat('http://',username':'password,'@www.site/')); use to work, but done not on version 2011b of matlab.
I have checked the site works on my pc and it does.
This is in a program that accesses several areas of the site to download differen data sets.
When the code is run it returns HTTP =0 therefore I know its not working.
All help is gratefully received.
Thanks,
Kerry

Best Answer

Here we go... urlwrite_auth
downloads the file you wanted to the location!
function  [output,status]=urlwrite_auth(url, user, password,location,wanted) 
%URLWRITE_AUTH Like URLWRITE, with basic authentication 
% 

% location is where you want the file saved
% wanted is the name of the file you want
% Returns the output file which is now saved to location. 
% 
% Examples: 
% sampleUrl = 'http://browserspy.dk/password-ok.php'; 
% [output,status] = urlwrite_auth(sampleUrl, 'user', 'password', location, wanted); 
% Matlab's urlread() doesn't do HTTP Request params, so work directly with Java 
jUrl = java.net.URL(url); 
conn = jUrl.openConnection(); 
conn.setRequestProperty('Authorization', ['Basic ' base64encode([user ':' password])]); 
conn.connect()
%note this calls the function below
% Specify the full path to the file so that getAbsolutePath will work when the
% current directory is not the startup directory and urlwrite is given a
% relative path.
file = java.io.File(location);
% the path.
try
   file = file.getCanonicalFile;
catch
   error('MATLAB:urlwrite:InvalidOutputLocation','Could not resolve file "%s".',char(file.getAbsolutePath));
end
% Open the output file.
pathy=strcat(location,'\',wanted);
try
    fileOutputStream = java.io.FileOutputStream(pathy);
catch
    error('MATLAB:urlwrite:InvalidOutputLocation','Could not open output file "%s".',char(file.getAbsolutePath));
end
% Read the data from the connection.
try
    inputStream = conn.getInputStream;
        import com.mathworks.mlwidgets.io.InterruptibleStreamCopier; 
    % This StreamCopier is unsupported and may change at any time.
    isc = InterruptibleStreamCopier.getInterruptibleStreamCopier;   
    isc.copyStream(inputStream,fileOutputStream);
    inputStream.close;
    fileOutputStream.close;
    output = char(file.getAbsolutePath);
catch
    fileOutputStream.close;
    delete(file);
    if catchErrors, return
    else error('MATLAB:urlwrite:ConnectionFailed','Error downloading URL. Your network connection may be down or your proxy settings improperly configured.');
    end
end
status = 1;
function out = base64encode(str) 
% Uses Sun-specific class, but we know that is the JVM Matlab ships with 
encoder = sun.misc.BASE64Encoder(); 
out = char(encoder.encode(java.lang.String(str).getBytes())); 
 %this is the bit of code that makes it connect!!!!
Enjoy, it took me a 3 solid days, but I got there.
Good luck, sorry it has not come out that clear here. I can email it if you want.
Kerry
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