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module Ramaze
class Session
# The Session::Hash acts as the wrapper for a simple Hash
#
# Its purpose is to notify the underlying cache, in which the sessions
# are stored, about updates.
class Hash
# Sets @hash to an empty Hash
def initialize(session)
@session = session
@hash = {}
end
# relays all the methods to the @hash and updates the session_cache in
# Session.current.sessions if anything changes.
def method_missing(*args, &block)
result = @hash.send(*args, &block)
Cache.sessions[@session.session_id] = self
result
end
# Calls #inspect on the wrapped @hash
def inspect
@hash.inspect
end
# Use client side session variables
def client
Request.current['session.client'] ||= unmarshal(Request.current.cookies["#{Session::SESSION_KEY}-client"]) || {}
end
private
# Marshal a session hash into safe cookie data. Include an integrity hash.
def marshal(session)
data = [ Marshal.dump(session) ].pack('m').chop
"#{data}--#{generate_digest(data)}"
end
# Unmarshal cookie data to a hash and verify its integrity.
def unmarshal(cookie)
return unless cookie
data, digest = cookie.split('--')
return nil unless digest == generate_digest(data)
Marshal.load(data.unpack('m').first)
end
# Generate the inline SHA512 message digest. Larger (128 bytes) than SHA256
# (64 bytes) or RMD160 (40 bytes), but small relative to the 4096 byte
# max cookie size.
def generate_digest(data)
Digest::SHA512.hexdigest "#{data}#{Session.trait[:secret]}"
end
end
end
end
Version data entries
10 entries across 10 versions & 4 rubygems