Created
October 21, 2015 02:21
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Signing Google Cloud Storage URLs
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private_key = "..." | |
client_email = "..." | |
bucket = "..." | |
path = "..." | |
full_path = "/#{bucket}/#{path}" | |
expiration = 5.minutes.from_now.to_i | |
signature_string = [ | |
"GET", | |
"", | |
"", | |
expiration, | |
full_path, | |
].join("\n") | |
digest = OpenSSL::Digest::SHA256.new | |
signer = OpenSSL::PKey::RSA.new(private_key) | |
signature = Base64.strict_encode64(signer.sign(digest, signature_string)) | |
signature = CGI.escape(signature) | |
"https://storage.googleapis.com#{full_path}?GoogleAccessId=#{client_email}&Expires=#{expiration}&Signature=#{signature}" |
A suggestion for rubocop builds, and read the key from the google json directly
file = File.read('/gc_api_json_path')
data = JSON.parse(file)
private_key = data['private_key']
client_email = data['client_email']
bucket = 'gc_storage_bucket_name'
path = 'file'
full_path = "/#{bucket}/#{path}"
expiration = 5.minutes.from_now.to_i
signature_string = [
'GET',
'',
'',
expiration,
full_path
].join("\n")
# remove the las ','
again, thanks man, it help me a lot!
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good 1