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54 lines
1.6 KiB
Go
54 lines
1.6 KiB
Go
package zk
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import (
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"crypto/sha1"
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"encoding/base64"
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"fmt"
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"math/rand"
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"strconv"
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"strings"
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)
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// AuthACL produces an ACL list containing a single ACL which uses the
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// provided permissions, with the scheme "auth", and ID "", which is used
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// by ZooKeeper to represent any authenticated user.
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func AuthACL(perms int32) []ACL {
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return []ACL{{perms, "auth", ""}}
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}
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// WorldACL produces an ACL list containing a single ACL which uses the
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// provided permissions, with the scheme "world", and ID "anyone", which
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// is used by ZooKeeper to represent any user at all.
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func WorldACL(perms int32) []ACL {
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return []ACL{{perms, "world", "anyone"}}
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}
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func DigestACL(perms int32, user, password string) []ACL {
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userPass := []byte(fmt.Sprintf("%s:%s", user, password))
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h := sha1.New()
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if n, err := h.Write(userPass); err != nil || n != len(userPass) {
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panic("SHA1 failed")
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}
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digest := base64.StdEncoding.EncodeToString(h.Sum(nil))
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return []ACL{{perms, "digest", fmt.Sprintf("%s:%s", user, digest)}}
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}
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// FormatServers takes a slice of addresses, and makes sure they are in a format
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// that resembles <addr>:<port>. If the server has no port provided, the
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// DefaultPort constant is added to the end.
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func FormatServers(servers []string) []string {
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for i := range servers {
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if !strings.Contains(servers[i], ":") {
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servers[i] = servers[i] + ":" + strconv.Itoa(DefaultPort)
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}
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}
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return servers
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}
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// stringShuffle performs a Fisher-Yates shuffle on a slice of strings
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func stringShuffle(s []string) {
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for i := len(s) - 1; i > 0; i-- {
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j := rand.Intn(i + 1)
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s[i], s[j] = s[j], s[i]
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}
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}
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