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Ruby version of Rackspace's example form signing code. Full details on Cloud Files FormPost capability are in the API docs:
http://docs.rackspace.com/files/api/v1/cf-devguide/content/FormPost-d1a555.html sprintf is used here because it breaks across multiple lines nicely; there's nothing stopping you from using inline interpolation (heck, or con…
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| require 'openssl' | |
| path = '/v1/account/container/object_prefix' | |
| redirect = 'https://myserver.com/some-page' | |
| max_file_size = 104857600 | |
| max_file_count = 10 | |
| expires = (Time.now.to_i + 600) | |
| key = 'mykey' | |
| hmac_body = sprintf("%s\n%s\n%s\n%s\n%s", path, redirect, max_file_size, max_file_count, expires) | |
| signature = OpenSSL::HMAC.hexdigest('sha1', key, hmac_body) |
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The formatting in the description committed suicide for some reason.
Relevant API docs are here:
http://docs.rackspace.com/files/api/v1/cf-devguide/content/FormPost-d1a555.html
sprintf is used for the most similarity with the Rackspace sample code (without being weird and using String#%) and because it breaks nicely across multiple lines. If you really want to use % for maximum simulacrum status, it takes an array.