| /* |
| Copyright 2017 The Kubernetes Authors. |
| |
| Licensed under the Apache License, Version 2.0 (the "License"); |
| you may not use this file except in compliance with the License. |
| You may obtain a copy of the License at |
| |
| http://www.apache.org/licenses/LICENSE-2.0 |
| |
| Unless required by applicable law or agreed to in writing, software |
| distributed under the License is distributed on an "AS IS" BASIS, |
| WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| See the License for the specific language governing permissions and |
| limitations under the License. |
| */ |
| |
| package util |
| |
| import ( |
| "crypto/md5" |
| "errors" |
| "fmt" |
| "path" |
| "path/filepath" |
| "strings" |
| "time" |
| |
| metav1 "k8s.io/apimachinery/pkg/apis/meta/v1" |
| "k8s.io/apimachinery/pkg/runtime" |
| ) |
| |
| // ParseRFC3339 parses an RFC3339 date in either RFC3339Nano or RFC3339 format. |
| func ParseRFC3339(s string, nowFn func() metav1.Time) (metav1.Time, error) { |
| if t, timeErr := time.Parse(time.RFC3339Nano, s); timeErr == nil { |
| return metav1.Time{Time: t}, nil |
| } |
| t, err := time.Parse(time.RFC3339, s) |
| if err != nil { |
| return metav1.Time{}, err |
| } |
| return metav1.Time{Time: t}, nil |
| } |
| |
| // HashObject returns the hash of a Object hash by a Codec |
| func HashObject(obj runtime.Object, codec runtime.Codec) (string, error) { |
| data, err := runtime.Encode(codec, obj) |
| if err != nil { |
| return "", err |
| } |
| return fmt.Sprintf("%x", md5.Sum(data)), nil |
| } |
| |
| // ParseFileSource parses the source given. |
| // |
| // Acceptable formats include: |
| // 1. source-path: the basename will become the key name |
| // 2. source-name=source-path: the source-name will become the key name and |
| // source-path is the path to the key file. |
| // |
| // Key names cannot include '='. |
| func ParseFileSource(source string) (keyName, filePath string, err error) { |
| numSeparators := strings.Count(source, "=") |
| switch { |
| case numSeparators == 0: |
| return path.Base(filepath.ToSlash(source)), source, nil |
| case numSeparators == 1 && strings.HasPrefix(source, "="): |
| return "", "", fmt.Errorf("key name for file path %v missing", strings.TrimPrefix(source, "=")) |
| case numSeparators == 1 && strings.HasSuffix(source, "="): |
| return "", "", fmt.Errorf("file path for key name %v missing", strings.TrimSuffix(source, "=")) |
| case numSeparators > 1: |
| return "", "", errors.New("Key names or file paths cannot contain '='") |
| default: |
| components := strings.Split(source, "=") |
| return components[0], components[1], nil |
| } |
| } |
| |
| // ParseLiteralSource parses the source key=val pair into its component pieces. |
| // This functionality is distinguished from strings.SplitN(source, "=", 2) since |
| // it returns an error in the case of empty keys, values, or a missing equals sign. |
| func ParseLiteralSource(source string) (keyName, value string, err error) { |
| // leading equal is invalid |
| if strings.Index(source, "=") == 0 { |
| return "", "", fmt.Errorf("invalid literal source %v, expected key=value", source) |
| } |
| // split after the first equal (so values can have the = character) |
| items := strings.SplitN(source, "=", 2) |
| if len(items) != 2 { |
| return "", "", fmt.Errorf("invalid literal source %v, expected key=value", source) |
| } |
| |
| return items[0], items[1], nil |
| } |