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Showing content from https://www.rubydoc.info/github/rubygems/rubygems/Gem/S3URISigner below:

S3URISigner – Documentation for rubygems/rubygems (master) – RubyDoc.info

Inherits:

Object

• Object
• Gem::S3URISigner

show all

Defined in:

lib/rubygems/s3_uri_signer.rb

Classes: ConfigurationError, InstanceProfileError, S3Config

• #method ⇒ Object

  Returns the value of attribute method.

• #uri ⇒ Object

  Returns the value of attribute uri.

• #initialize(uri, method) ⇒ S3URISigner constructor

  A new instance of S3URISigner.

• #sign(expiration = 86_400) ⇒ Object

  Signs S3 URI using query-params according to the reference: docs.aws.amazon.com/AmazonS3/latest/API/sigv4-query-string-auth.html.

Returns a new instance of S3URISigner.

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# File 'lib/rubygems/s3_uri_signer.rb', line 32

def initialize(uri, method)
  @uri = uri
  @method = method
end

Returns the value of attribute method.

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# File 'lib/rubygems/s3_uri_signer.rb', line 30

def method
  @method
end

Returns the value of attribute uri.

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# File 'lib/rubygems/s3_uri_signer.rb', line 29

def uri
  @uri
end

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# File 'lib/rubygems/s3_uri_signer.rb', line 39

def sign(expiration = 86_400)
  s3_config = fetch_s3_config

  current_time = Time.now.utc
  date_time = current_time.strftime("%Y%m%dT%H%M%SZ")
  date = date_time[0,8]

  credential_info = "#{date}/#{s3_config.region}/s3/aws4_request"
  canonical_host = "#{uri.host}.s3.#{s3_config.region}.amazonaws.com"

  query_params = generate_canonical_query_params(s3_config, date_time, credential_info, expiration)
  canonical_request = generate_canonical_request(canonical_host, query_params)
  string_to_sign = generate_string_to_sign(date_time, credential_info, canonical_request)
  signature = generate_signature(s3_config, date, string_to_sign)

  Gem::URI.parse("https://#{canonical_host}#{uri.path}?#{query_params}&X-Amz-Signature=#{signature}")
end

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