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forgejo/models/actions/utils.go

85 lines
2.2 KiB
Go

// Copyright 2022 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package actions
import (
"bytes"
"encoding/binary"
"encoding/hex"
"errors"
"fmt"
"io"
"time"
auth_model "code.gitea.io/gitea/models/auth"
"code.gitea.io/gitea/modules/timeutil"
"code.gitea.io/gitea/modules/util"
)
func generateSaltedToken() (string, string, string, string, error) {
salt, err := util.CryptoRandomString(10)
if err != nil {
return "", "", "", "", err
}
buf, err := util.CryptoRandomBytes(20)
if err != nil {
return "", "", "", "", err
}
token := hex.EncodeToString(buf)
hash := auth_model.HashToken(token, salt)
return token, salt, hash, token[len(token)-8:], nil
}
/*
LogIndexes is the index for mapping log line number to buffer offset.
Because it uses varint encoding, it is impossible to predict its size.
But we can make a simple estimate with an assumption that each log line has 200 byte, then:
| lines | file size | index size |
|-----------|---------------------|--------------------|
| 100 | 20 KiB(20000) | 258 B(258) |
| 1000 | 195 KiB(200000) | 2.9 KiB(2958) |
| 10000 | 1.9 MiB(2000000) | 34 KiB(34715) |
| 100000 | 19 MiB(20000000) | 386 KiB(394715) |
| 1000000 | 191 MiB(200000000) | 4.1 MiB(4323626) |
| 10000000 | 1.9 GiB(2000000000) | 47 MiB(49323626) |
| 100000000 | 19 GiB(20000000000) | 490 MiB(513424280) |
*/
type LogIndexes []int64
func (indexes *LogIndexes) FromDB(b []byte) error {
reader := bytes.NewReader(b)
for {
v, err := binary.ReadVarint(reader)
if err != nil {
if errors.Is(err, io.EOF) {
return nil
}
return fmt.Errorf("binary ReadVarint: %w", err)
}
*indexes = append(*indexes, v)
}
}
func (indexes *LogIndexes) ToDB() ([]byte, error) {
buf, i := make([]byte, binary.MaxVarintLen64*len(*indexes)), 0
for _, v := range *indexes {
n := binary.PutVarint(buf[i:], v)
i += n
}
return buf[:i], nil
}
var timeSince = time.Since
func calculateDuration(started, stopped timeutil.TimeStamp, status Status) time.Duration {
if started == 0 {
return 0
}
s := started.AsTime()
if status.IsDone() {
return stopped.AsTime().Sub(s)
}
return timeSince(s).Truncate(time.Second)
}