forked from Silverfish/proton-bridge
63 lines
1.5 KiB
Go
63 lines
1.5 KiB
Go
// Copyright (c) 2023 Proton AG
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//
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// This file is part of Proton Mail Bridge.
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//
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// Proton Mail Bridge is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// Proton Mail Bridge is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with Proton Mail Bridge. If not, see <https://www.gnu.org/licenses/>.
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package user
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import (
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"math/rand"
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"time"
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)
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const SyncRetryCooldown = 20 * time.Second
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type cooldownProvider interface {
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GetNextWaitTime() time.Duration
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}
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func jitter(max int) time.Duration {
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return time.Duration(rand.Intn(max)) * time.Second //nolint:gosec
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}
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type expCooldown struct {
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count int
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}
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func (c *expCooldown) GetNextWaitTime() time.Duration {
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waitTimes := []time.Duration{
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20 * time.Second,
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40 * time.Second,
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80 * time.Second,
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160 * time.Second,
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300 * time.Second,
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600 * time.Second,
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}
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last := len(waitTimes) - 1
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if c.count >= last {
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return waitTimes[last] + jitter(10)
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}
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c.count++
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return waitTimes[c.count-1] + jitter(10)
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}
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type noCooldown struct{}
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func (c *noCooldown) GetNextWaitTime() time.Duration { return time.Millisecond }
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