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module GPGME
module KeyCommon
##
# Returns nil if the trust is valid.
# Returns one of +:revoked+, +:expired+, +:disabled+, +:invalid+
def trust
return :revoked if @revoked == 1
return :expired if @expired == 1
return :disabled if @disabled == 1
return :invalid if @invalid == 1
end
##
# Array of capabilities for this key. It can contain any combination of
# +:encrypt+, +:sign+, +:certify+ or +:authenticate+
def capability
caps = []
caps << :encrypt if @can_encrypt == 1
caps << :sign if @can_sign == 1
caps << :certify if @can_certify == 1
caps << :authenticate if @can_authenticate == 1
caps
end
##
# Checks if the key is capable of all of these actions. If empty array
# is passed then will return true.
#
# Returns false if the keys trust has been invalidated.
def usable_for?(purposes)
unless purposes.kind_of? Array
purposes = [purposes]
end
return false if [:revoked, :expired, :disabled, :invalid].include? trust
return (purposes - capability).empty?
end
def secret?
@secret == 1
end
end
end
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