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POHow do I authenticate a management service request to Windows Azure?
 

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  1. POHow do I authenticate a management service request to Windows Azure?
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    <p>I am trying to make a request to Azure via Python to list the storage services I have. </p> <p>My base code is this:</p> <pre><code>import httplib conn = httplib.HTTPSConnection('management.core.windows.net') conn.request('GET', '/[subscription id]/services/storageservices/') response = conn.getresponse() print response.status response.reason </code></pre> <p>Obviously, because I did not authenticate, this printed out <code>403 Forbidden</code></p> <p>So, I followed the instructions at <a href="http://msdn.microsoft.com/en-us/library/windowsazure/gg651127" rel="nofollow noreferrer">http://msdn.microsoft.com/en-us/library/windowsazure/gg651127</a> to create a cert, giving me <code>cert.cer</code>. I uploaded my <code>.cer</code> to my Azure account and copied the <code>.cer</code> to my Linux VM in which I am using Python. I modified my code to be:</p> <pre><code>import httplib cert_file = '/path/to/cert.cer' conn = httplib.HTTPSConnection('management.core.windows.net', cert_file = cert_file) conn.request('GET', '/[subscription id]/services/storageservices/') </code></pre> <p>and got the error:</p> <pre><code>ssl.SSLError: [Errno 336265225] _ssl.c:351: error:140B0009:SSL routines:SSL_CTX_use_PrivateKey_file:PEM lib </code></pre> <p>Under the impression that maybe this was because I was trying to use a <code>.cer</code> certificate instead of a <code>.pem</code>, and based on what is said <a href="https://serverfault.com/questions/9708/what-is-a-pem-file-and-how-does-it-differ-from-other-openssl-generated-key-file">here</a> about the difference between .pem's and .cer's <em>(that they're the same thing with a different extension)</em>, I just changed the extension on my .cer to a .pem and tried again, getting the same error. </p> <p>How can I properly authenticate myself to Azure to access its API? Is this an issue with how I am uploading the certificate, or do I need to do something with the certificate to make it suitable to present to the server? On Windows it seems I can install the <code>.cer</code> into some sort of certificate store - is there an equivalent in Linux from which I need to retrieve the cert before using it to authenticate? Thanks for any help =)</p>
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    1. USRahul Gupta-Iwasaki
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    1. COIs your second code sample missing something? I don't see where you're using the variable `cert_file`. You're on the right track, and I suspect you're right that it's a file format issue.
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      1. POHow do I authenticate a management service request to Windows Azure?
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    2. COwhoops, fixed it, thanks for the catch. Yeah, the sample project provided at http://msdn.microsoft.com/en-us/library/windowsazure/gg651127.aspx works perfectly... I'm not totally clear on how certs are stored and ssl auth works, but I think it might be some friction with the way I'm getting the cert and adding it to the request that's causing the issue, given the fancy way it's done in the sample lol
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      1. POHow do I authenticate a management service request to Windows Azure?
      1. USRahul Gupta-Iwasaki
 

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