On Thu, Jun 07, 2012 at 10:38:20PM -0400, Evan Miller wrote:
> Hi:
>
> Right now, I am just testing a simple, final API-based url with signature in
> a browser.
> I am getting the following authentication related error in the browser:
>
> { "listvirtualmachinesresponse" : {"errorcode" : 401, "errortext" : "unable
> to verify user credentials and/or request signature"} }
>
> Here is the final API-based url:
>
>
> http://10.217.5.192:8080/client/api?command=listVirtualMachines&apiKey=8v_GEvJJgDjbbHIBmlle4yyHKseQhRefztnv4UP2fU3K9y12TH7lscsn6-7SEaGO1yCCTnUtE1oT0v7npCuS8Q&response=json&signature=1ca7bc1bbc67b8f578c7d094c523537571ee17b1
>
> Here is how I built that final url:
>
> Using perl, it is based on the following pieces:
>
> my $cs_ip = '10.217.5.192';
> my $base_url = 'http://' . "$cs_ip" . ':8080';
> my $api_path = '/client/api?';
> my $api_key =
> '8v_gevjjgdjbbhibmlle4yyhkseqhrefztnv4up2fu3k9y12th7lscsn6-7seago1ycctnute1ot0v7npcus8q';
> my $secret_key =
> 'kNd2VxlXxCXwyJGlidr0ZcmcqXSH2refwxZTStD6If4vJu4QmJPOIui0rgr88mDI6DuGQTzP9eQNOjlZBTReKg';
>
> The api_key and secret key come from my account (evan) in domain 1.
> The keys were just generated in a new CloudStack GUI session.
> The evan account has ROOT Domain privileges.
>
> Then, following directions in the Developer's Guide ...
>
> The sorted, lower-case command string ($sorted_lc_cmd) is:
>
> apikey=8v_gevjjgdjbbhibmlle4yyhkseqhrefztnv4up2fu3k9y12th7lscsn6-7seago1ycctnute1ot0v7npcus8q&command=listvirtualmachines&response=json
>
>
> I obtained the hex signature in perl as follows:
>
>
> $signature = hmac_sha1_hex ($sorted_lc_cmd, $secret_key);
>
>
> And, then, put together the final url, as above, with the calculated
> signature.
>
>
> What am I doing wrong or missing?
Before you obtain the hmac SHA-1 you need to url encode the request
url stripping it off reserved characters like "+, !, $" etc. Then you
perform the HMAC on the resultant string. This then is passed through
a base64 encoder to obtain the signature. It looks like you missed
this step. Can you base64 encode the hmac result and give it a shot?
--
Prasanna.,
