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module Net; module SSH
class Exception < ::RuntimeError; end
class AuthenticationFailed < Exception; end
class Disconnect < Exception; end
class ChannelOpenFailed < Exception
attr_reader :code, :reason
def initialize(code, reason)
@code, @reason = code, reason
super "#{reason} (#{code})"
end
end
# Raised when the cached key for a particular host does not match the
# key given by the host, which can be indicative of a man-in-the-middle
# attack. When rescuing this exception, you can inspect the key fingerprint
# and, if you want to proceed anyway, simply call the remember_host!
# method on the exception, and then retry.
class HostKeyMismatch < Exception
attr_writer :callback, :data
def [](key)
@data[key]
end
def fingerprint
@data[:fingerprint]
end
def host
@data[:peer][:host]
end
def port
@data[:peer][:port]
end
def ip
@data[:peer][:ip]
end
def key
@data[:key]
end
def remember_host!
@callback.call
end
end
end; end
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