3c0c5ed4e0
godep restore pushd $GOPATH/src/github.com/appc/spec git co master popd go get go4.org/errorutil rm -rf Godeps godep save ./... git add vendor git add -f $(git ls-files --other vendor/) git co -- Godeps/LICENSES Godeps/.license_file_state Godeps/OWNERS
34 lines
1.1 KiB
Go
34 lines
1.1 KiB
Go
package mech
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import (
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"errors"
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"github.com/mesos/mesos-go/auth/callback"
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)
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var (
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IllegalStateErr = errors.New("illegal mechanism state")
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)
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type Interface interface {
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Handler() callback.Handler
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Discard() // clean up resources or sensitive information; idempotent
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}
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// return a mechanism and it's initialization step (may be a noop that returns
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// a nil data blob and handle to the first "real" challenge step).
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type Factory func(h callback.Handler) (Interface, StepFunc, error)
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// StepFunc implementations should never return a nil StepFunc result. This
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// helps keep the logic in the SASL authticatee simpler: step functions are
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// never nil. Mechanisms that end up an error state (for example, some decoding
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// logic fails...) should return a StepFunc that represents an error state.
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// Some mechanisms may be able to recover from such.
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type StepFunc func(m Interface, data []byte) (StepFunc, []byte, error)
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// reflects an unrecoverable, illegal mechanism state; always returns IllegalState
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// as the next step along with an IllegalStateErr
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func IllegalState(m Interface, data []byte) (StepFunc, []byte, error) {
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return IllegalState, nil, IllegalStateErr
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}
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