49 lines
982 B
Go
49 lines
982 B
Go
|
package utils
|
||
|
|
|
||
|
|
import (
|
||
|
|
"crypto"
|
||
|
|
"encoding/hex"
|
||
|
|
"strings"
|
||
|
|
)
|
||
|
|
|
||
|
|
func GetValueForETagUsingByteArray(b []byte) string {
|
||
|
|
theHash := crypto.SHA1.New()
|
||
|
|
_, _ = theHash.Write(b)
|
||
|
|
theSum := theHash.Sum(nil)
|
||
|
|
theHash.Reset()
|
||
|
|
return "\"" + hex.EncodeToString(theSum) + "\""
|
||
|
|
}
|
||
|
|
|
||
|
|
func GetETagValues(stringIn string) []string {
|
||
|
|
if strings.ContainsAny(stringIn, ",") {
|
||
|
|
seperated := strings.Split(stringIn, ",")
|
||
|
|
toReturn := make([]string, len(seperated))
|
||
|
|
pos := 0
|
||
|
|
for _, s := range seperated {
|
||
|
|
cETag := GetETagValue(s)
|
||
|
|
if cETag != "" {
|
||
|
|
toReturn[pos] = cETag
|
||
|
|
pos += 1
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if pos == 0 {
|
||
|
|
return nil
|
||
|
|
}
|
||
|
|
return toReturn[:pos]
|
||
|
|
}
|
||
|
|
toReturn := []string{GetETagValue(stringIn)}
|
||
|
|
if toReturn[0] == "" {
|
||
|
|
return nil
|
||
|
|
}
|
||
|
|
return toReturn
|
||
|
|
}
|
||
|
|
|
||
|
|
func GetETagValue(stringIn string) string {
|
||
|
|
startIndex := strings.IndexAny(stringIn, "\"") + 1
|
||
|
|
endIndex := strings.LastIndexAny(stringIn, "\"")
|
||
|
|
if endIndex > startIndex {
|
||
|
|
return stringIn[startIndex:endIndex]
|
||
|
|
}
|
||
|
|
return ""
|
||
|
|
}
|