class AWS::Core::Signers::Version3
@api private
Attributes
credentials[R]
@return [CredentialProviders::Provider]
Public Class Methods
new(credentials)
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@param [CredentialProviders::Provider] credentials
# File lib/aws/core/signers/version_3.rb, line 26 def initialize credentials @credentials = credentials end
Public Instance Methods
sign_request(req)
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@param [Http::Request] req @return [Http::Request]
# File lib/aws/core/signers/version_3.rb, line 35 def sign_request req req.headers["x-amz-date"] ||= (req.headers["date"] ||= Time.now.httpdate) req.headers["host"] ||= req.host req.headers["x-amz-security-token"] = credentials.session_token if credentials.session_token req.headers["x-amzn-authorization"] = "AWS3 "+ "AWSAccessKeyId=#{credentials.access_key_id},"+ "Algorithm=HmacSHA256,"+ "SignedHeaders=#{headers_to_sign(req).join(';')},"+ "Signature=#{signature(req)}" end
Private Instance Methods
canonical_headers(req)
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@param [Http::Request] req
# File lib/aws/core/signers/version_3.rb, line 67 def canonical_headers req headers_to_sign(req).map do |name| value = req.headers[name] "#{name.downcase.strip}:#{value.strip}\n" end.sort.join end
headers_to_sign(req)
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@param [Http::Request] req
# File lib/aws/core/signers/version_3.rb, line 75 def headers_to_sign req req.headers.keys.select do |header| header == "host" || header == "content-encoding" || header =~ /^x-amz/ end end
signature(req, service_signing_name = nil)
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@param [Http::Request] req
# File lib/aws/core/signers/version_3.rb, line 51 def signature req, service_signing_name = nil sign(credentials.secret_access_key, string_to_sign(req)) end
string_to_sign(req)
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@param [Http::Request] req
# File lib/aws/core/signers/version_3.rb, line 56 def string_to_sign req OpenSSL::Digest::SHA256.digest([ req.http_method, "/", "", canonical_headers(req), req.body ].join("\n")) end