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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,96 @@ | ||
| package config | ||
|
|
||
| import ( | ||
| "crypto/x509" | ||
| "fmt" | ||
| "net" | ||
| "net/url" | ||
| "strconv" | ||
| "strings" | ||
|
|
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| x509request "k8s.io/apiserver/pkg/authentication/request/x509" | ||
|
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| "k8s.io/apimachinery/third_party/forked/golang/netutil" | ||
| ) | ||
|
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| // GetClusterNicknameFromURL returns host:port of the apiServerLocation, with .'s replaced by -'s | ||
| func GetClusterNicknameFromURL(apiServerLocation string) (string, error) { | ||
| u, err := url.Parse(apiServerLocation) | ||
| if err != nil { | ||
| return "", err | ||
| } | ||
| hostPort := netutil.CanonicalAddr(u) | ||
|
|
||
| // we need a character other than "." to avoid conflicts with. replace with '-' | ||
| return strings.Replace(hostPort, ".", "-", -1), nil | ||
| } | ||
|
|
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| func GetUserNicknameFromCert(clusterNick string, chain ...*x509.Certificate) (string, error) { | ||
| userInfo, _, err := x509request.CommonNameUserConversion(chain) | ||
| if err != nil { | ||
| return "", err | ||
| } | ||
|
|
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| return userInfo.GetName() + "/" + clusterNick, nil | ||
| } | ||
|
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| func GetContextNickname(namespace, clusterNick, userNick string) string { | ||
| tokens := strings.SplitN(userNick, "/", 2) | ||
| return namespace + "/" + clusterNick + "/" + tokens[0] | ||
| } | ||
|
|
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| var validURLSchemes = []string{"https://", "http://", "tcp://"} | ||
|
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| // NormalizeServerURL is opinionated normalization of a string that represents a URL. Returns the URL provided matching the format | ||
| // expected when storing a URL in a config. Sets a scheme and port if not present, removes unnecessary trailing | ||
| // slashes, etc. Can be used to normalize a URL provided by user input. | ||
| func NormalizeServerURL(s string) (string, error) { | ||
| // normalize scheme | ||
| if !hasScheme(s) { | ||
| s = validURLSchemes[0] + s | ||
| } | ||
|
|
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| addr, err := url.Parse(s) | ||
| if err != nil { | ||
| return "", fmt.Errorf("Not a valid URL: %v.", err) | ||
| } | ||
|
|
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| // normalize host:port | ||
| if strings.Contains(addr.Host, ":") { | ||
| _, port, err := net.SplitHostPort(addr.Host) | ||
| if err != nil { | ||
| return "", fmt.Errorf("Not a valid host:port: %v.", err) | ||
| } | ||
| _, err = strconv.ParseUint(port, 10, 16) | ||
| if err != nil { | ||
| return "", fmt.Errorf("Not a valid port: %v. Port numbers must be between 0 and 65535.", port) | ||
| } | ||
| } else { | ||
| port := 0 | ||
| switch addr.Scheme { | ||
| case "http": | ||
| port = 80 | ||
| case "https": | ||
| port = 443 | ||
| default: | ||
| return "", fmt.Errorf("No port specified.") | ||
| } | ||
| addr.Host = net.JoinHostPort(addr.Host, strconv.FormatInt(int64(port), 10)) | ||
| } | ||
|
|
||
| // remove trailing slash if that's the only path we have | ||
| if addr.Path == "/" { | ||
| addr.Path = "" | ||
| } | ||
|
|
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| return addr.String(), nil | ||
| } | ||
|
|
||
| func hasScheme(s string) bool { | ||
| for _, p := range validURLSchemes { | ||
| if strings.HasPrefix(s, p) { | ||
| return true | ||
| } | ||
| } | ||
| return false | ||
| } |
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