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66 lines
1.3 KiB
66 lines
1.3 KiB
package app |
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import ( |
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"context" |
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"fmt" |
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"encoders.orly/envelopes/eventenvelope" |
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"lol.mleku.dev/chk" |
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"lol.mleku.dev/log" |
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utils "utils.orly" |
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) |
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func (l *Listener) HandleEvent(c context.Context, msg []byte) ( |
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err error, |
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) { |
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// decode the envelope |
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env := eventenvelope.NewSubmission() |
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if msg, err = env.Unmarshal(msg); chk.E(err) { |
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return |
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} |
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if len(msg) > 0 { |
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log.I.F("extra '%s'", msg) |
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} |
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// check the event ID is correct |
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calculatedId := env.E.GetIDBytes() |
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if !utils.FastEqual(calculatedId, env.E.ID) { |
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if err = Ok.Invalid( |
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l, env, "event id is computed incorrectly, "+ |
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"event has ID %0x, but when computed it is %0x", |
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env.E.ID, calculatedId, |
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); chk.E(err) { |
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return |
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} |
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return |
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} |
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// verify the signature |
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var ok bool |
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if ok, err = env.Verify(); chk.T(err) { |
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if err = Ok.Error( |
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l, env, fmt.Sprintf( |
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"failed to verify signature: %s", |
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err.Error(), |
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), |
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); chk.E(err) { |
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return |
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} |
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} else if !ok { |
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if err = Ok.Invalid( |
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l, env, |
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"signature is invalid", |
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); chk.E(err) { |
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return |
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} |
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return |
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} |
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// store the event |
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if _, _, err = l.SaveEvent(c, env.E, false, nil); chk.E(err) { |
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return |
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} |
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// Send a success response storing |
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if err = Ok.Ok(l, env, ""); chk.E(err) { |
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return |
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} |
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log.D.F("saved event %0x", env.E.ID) |
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return |
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}
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