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module OAuth
module Signature
# Returns a list of available signature methods
def self.available_methods
@available_methods ||= {}
end
# Build a signature from a +request+.
#
# Raises UnknownSignatureMethod exception if the signature method is unknown.
def self.build(request, options = {}, &block)
request = OAuth::RequestProxy.proxy(request, options)
klass = available_methods[
(request.signature_method ||
((c = request.options[:consumer]) && c.options[:signature_method]) ||
"").downcase]
raise UnknownSignatureMethod, request.signature_method unless klass
klass.new(request, options, &block)
end
# Sign a +request+
def self.sign(request, options = {}, &block)
self.build(request, options, &block).signature
end
# Verify the signature of +request+
def self.verify(request, options = {}, &block)
self.build(request, options, &block).verify
end
# Create the signature base string for +request+. This string is the normalized parameter information.
#
# See Also: {OAuth core spec version 1.0, section 9.1.1}[http://oauth.net/core/1.0#rfc.section.9.1.1]
def self.signature_base_string(request, options = {}, &block)
self.build(request, options, &block).signature_base_string
end
# Create the body hash for a request
def self.body_hash(request, options = {}, &block)
self.build(request, options, &block).body_hash
end
class UnknownSignatureMethod < Exception; end
end
end
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