class Amazon::Coral::V1SignatureHelper
Public Class Methods
new(aws_access_key_id, aws_secret_key)
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# File lib/amazon/coral/v1signaturehelper.rb, line 11 def initialize(aws_access_key_id, aws_secret_key) @aws_access_key_id = aws_access_key_id.to_s @aws_secret_key = aws_secret_key.to_s end
Public Instance Methods
add_fields(query_string_map, time)
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# File lib/amazon/coral/v1signaturehelper.rb, line 46 def add_fields(query_string_map, time) query_string_map['AWSAccessKeyId'] = @aws_access_key_id query_string_map['SignatureVersion'] = '1' query_string_map['SignatureMethod'] = 'HmacSHA1' query_string_map['Timestamp'] = time.to_s end
canonicalize(args)
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# File lib/amazon/coral/v1signaturehelper.rb, line 26 def canonicalize(args) query_string_map = args[:query_string_map] # exclude any existing Signature parameter from the canonical string sorted = sort(query_string_map.reject { |k, v| k == 'Signature' }) canonical = '' sorted.each do |v| canonical << v[0] canonical << v[1] unless(v[1].nil?) end return canonical end
compute_signature(canonical)
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# File lib/amazon/coral/v1signaturehelper.rb, line 41 def compute_signature(canonical) digest = OpenSSL::Digest::Digest.new('sha1') return Base64.encode64(OpenSSL::HMAC.digest(digest, @aws_secret_key, canonical)).strip end
sign(args)
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# File lib/amazon/coral/v1signaturehelper.rb, line 16 def sign(args) signT(Time.now.iso8601, args) end
signT(time, args)
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# File lib/amazon/coral/v1signaturehelper.rb, line 20 def signT(time, args) query_string_map = args[:query_string_map] add_fields(query_string_map, time) query_string_map['Signature'] = compute_signature(canonicalize(args)) end
sort(hash)
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# File lib/amazon/coral/v1signaturehelper.rb, line 53 def sort(hash) hash.sort { |a,b| a[0].downcase <=> b[0].downcase } end