feff72415a
- shifting between states for the resources - added the default behavior to stop renewing a sereat and instead retrieving a new lease - added the revoking method ;
87 lines
2.2 KiB
Go
87 lines
2.2 KiB
Go
/*
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Copyright 2015 Home Office All rights reserved.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package main
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import (
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"os"
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"math/rand"
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"time"
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"flag"
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"fmt"
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)
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func init() {
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rand.Seed(int64(time.Now().Nanosecond()))
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}
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// showUsage ... prints the command usage and exits
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// message : an error message to display if exiting with an error
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func showUsage(message string, args ... interface{}) {
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flag.PrintDefaults()
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if message != "" {
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fmt.Printf("\n[error] " + message + "\n", args...)
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os.Exit(1)
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}
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os.Exit(0)
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}
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// randomWait ... wait for a random amout of time
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func randomWait(min, max int ) <-chan time.Time {
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return time.After(time.Duration(getRandomWithin(min,max)) * time.Second)
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}
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// getKeys ... retrieve a list of keys from the map
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func getKeys(data map[string]interface{}) []string {
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var list []string
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for key, _ := range data {
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list = append(list, key)
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}
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return list
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}
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// randomInt ... generate a random integer between min and max
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// min : the smallest number we can accept
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// max : the largest number we can accept
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func getRandomWithin(min, max int) int {
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return rand.Intn(max - min) + min
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}
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// getEnv ... checks to see if an environment variable exists otherwise uses the default
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// env : the name of the environment variable you are checking for
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// value : the default value to return if the value is not there
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func getEnv(env, value string) string {
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if v := os.Getenv(env); v != "" {
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return v
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}
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return value
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}
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// fileExists ... checks to see if a file exists
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// filename : the full path to the file you are checking for
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func fileExists(filename string) (bool, error) {
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if _, err := os.Stat(filename); err != nil {
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if os.IsNotExist(err) {
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return false, nil
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}
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return false, err
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}
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return true, nil
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}
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