mirror of
https://github.com/ProtonMail/proton-bridge.git
synced 2025-12-10 04:36:43 +00:00
65 lines
1.7 KiB
Go
65 lines
1.7 KiB
Go
// Copyright (c) 2020 Proton Technologies AG
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//
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// This file is part of ProtonMail Bridge.
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//
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// ProtonMail 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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// ProtonMail 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 ProtonMail Bridge. If not, see <https://www.gnu.org/licenses/>.
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package store
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import (
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"fmt"
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"os"
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"os/exec"
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"runtime"
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"strconv"
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"strings"
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)
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func uLimit() int {
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if runtime.GOOS != "darwin" && runtime.GOOS != "linux" {
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return 0
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}
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out, err := exec.Command("bash", "-c", "ulimit -n").Output()
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if err != nil {
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log.Print(err)
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return 0
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}
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outStr := strings.Trim(string(out), " \n")
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num, err := strconv.Atoi(outStr)
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if err != nil {
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log.Print(err)
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return 0
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}
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return num
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}
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func isFdCloseToULimit() bool {
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if runtime.GOOS != "darwin" && runtime.GOOS != "linux" {
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return false
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}
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pid := fmt.Sprint(os.Getpid())
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out, err := exec.Command("lsof", "-p", pid).Output() //nolint[gosec]
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if err != nil {
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log.Warn("isFdCloseToULimit: ", err)
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return false
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}
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lines := strings.Split(string(out), "\n")
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fd := len(lines) - 1
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ulimit := uLimit()
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log.Info("File descriptor check: num goroutines ", runtime.NumGoroutine(), " fd ", fd, " ulimit ", ulimit)
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return fd >= int(0.95*float64(ulimit))
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}
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