124 lines
3.0 KiB
Go
124 lines
3.0 KiB
Go
package utils
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import (
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"bytes"
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"crypto/md5"
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"fmt"
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"io"
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"math"
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"os"
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)
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type UTCOffset struct {
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Name string
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Value string
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}
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var UTC_OFFSETS = []UTCOffset{
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{Value: "-12 hours", Name: "UTC−12:00"},
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{Value: "-11 hours", Name: "UTC−11:00"},
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{Value: "-10 hours", Name: "UTC−10:00"},
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{Value: "-9.5 hours", Name: "UTC−09:30"},
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{Value: "-9 hours", Name: "UTC−09:00"},
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{Value: "-8 hours", Name: "UTC−08:00"},
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{Value: "-7 hours", Name: "UTC−07:00"},
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{Value: "-6 hours", Name: "UTC−06:00"},
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{Value: "-5 hours", Name: "UTC−05:00"},
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{Value: "-4 hours", Name: "UTC−04:00"},
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{Value: "-3.5 hours", Name: "UTC−03:30"},
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{Value: "-3 hours", Name: "UTC−03:00"},
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{Value: "-2 hours", Name: "UTC−02:00"},
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{Value: "-1 hours", Name: "UTC−01:00"},
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{Value: "0 hours", Name: "UTC±00:00"},
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{Value: "+1 hours", Name: "UTC+01:00"},
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{Value: "+2 hours", Name: "UTC+02:00"},
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{Value: "+3 hours", Name: "UTC+03:00"},
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{Value: "+3.5 hours", Name: "UTC+03:30"},
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{Value: "+4 hours", Name: "UTC+04:00"},
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{Value: "+4.5 hours", Name: "UTC+04:30"},
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{Value: "+5 hours", Name: "UTC+05:00"},
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{Value: "+5.5 hours", Name: "UTC+05:30"},
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{Value: "+5.75 hours", Name: "UTC+05:45"},
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{Value: "+6 hours", Name: "UTC+06:00"},
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{Value: "+6.5 hours", Name: "UTC+06:30"},
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{Value: "+7 hours", Name: "UTC+07:00"},
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{Value: "+8 hours", Name: "UTC+08:00"},
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{Value: "+8.75 hours", Name: "UTC+08:45"},
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{Value: "+9 hours", Name: "UTC+09:00"},
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{Value: "+9.5 hours", Name: "UTC+09:30"},
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{Value: "+10 hours", Name: "UTC+10:00"},
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{Value: "+10.5 hours", Name: "UTC+10:30"},
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{Value: "+11 hours", Name: "UTC+11:00"},
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{Value: "+12 hours", Name: "UTC+12:00"},
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{Value: "+12.75 hours", Name: "UTC+12:45"},
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{Value: "+13 hours", Name: "UTC+13:00"},
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{Value: "+14 hours", Name: "UTC+14:00"},
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}
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func GetUTCOffsets() []UTCOffset {
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return UTC_OFFSETS
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}
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func NiceSeconds(input int64) (result string) {
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if input == 0 {
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return "N/A"
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}
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days := math.Floor(float64(input) / 60 / 60 / 24)
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seconds := input % (60 * 60 * 24)
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hours := math.Floor(float64(seconds) / 60 / 60)
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seconds = input % (60 * 60)
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minutes := math.Floor(float64(seconds) / 60)
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seconds = input % 60
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if days > 0 {
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result += fmt.Sprintf("%dd ", int(days))
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}
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if hours > 0 {
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result += fmt.Sprintf("%dh ", int(hours))
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}
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if minutes > 0 {
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result += fmt.Sprintf("%dm ", int(minutes))
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}
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if seconds > 0 {
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result += fmt.Sprintf("%ds", int(seconds))
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}
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return
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}
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// Reimplemented KOReader Partial MD5 Calculation
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func CalculatePartialMD5(filePath string) (string, error) {
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file, err := os.Open(filePath)
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if err != nil {
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return "", err
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}
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defer file.Close()
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var step int64 = 1024
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var size int64 = 1024
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var buf bytes.Buffer
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for i := -1; i <= 10; i++ {
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byteStep := make([]byte, size)
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var newShift int64 = int64(i * 2)
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var newOffset int64
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if i == -1 {
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newOffset = 0
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} else {
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newOffset = step << newShift
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}
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_, err := file.ReadAt(byteStep, newOffset)
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if err == io.EOF {
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break
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}
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buf.Write(byteStep)
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}
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allBytes := buf.Bytes()
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return fmt.Sprintf("%x", md5.Sum(allBytes)), nil
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}
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