harbor/src/common/utils/utils.go
Wenkai Yin 414e8a8bcf Merge remote-tracking branch 'upstream/dev' into 170224_merge_config
Conflicts:
	make/docker-compose.tpl
	src/ui/service/token/authutils.go
2017-02-24 13:52:19 +08:00

114 lines
2.9 KiB
Go

/*
Copyright (c) 2016 VMware, Inc. All Rights Reserved.
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 utils
import (
"fmt"
"math/rand"
"net"
"net/url"
"strings"
"time"
"github.com/vmware/harbor/src/common/utils/log"
)
// FormatEndpoint formats endpoint
func FormatEndpoint(endpoint string) string {
endpoint = strings.TrimSpace(endpoint)
endpoint = strings.TrimRight(endpoint, "/")
if !strings.HasPrefix(endpoint, "http://") &&
!strings.HasPrefix(endpoint, "https://") {
endpoint = "http://" + endpoint
}
return endpoint
}
// ParseEndpoint parses endpoint to a URL
func ParseEndpoint(endpoint string) (*url.URL, error) {
endpoint = FormatEndpoint(endpoint)
u, err := url.Parse(endpoint)
if err != nil {
return nil, err
}
return u, nil
}
// ParseRepository splits a repository into two parts: project and rest
func ParseRepository(repository string) (project, rest string) {
repository = strings.TrimLeft(repository, "/")
repository = strings.TrimRight(repository, "/")
if !strings.ContainsRune(repository, '/') {
rest = repository
return
}
index := strings.Index(repository, "/")
project = repository[0:index]
rest = repository[index+1:]
return
}
// GenerateRandomString generates a random string
func GenerateRandomString() string {
length := 32
rand.Seed(time.Now().UTC().UnixNano())
const chars = "abcdefghijklmnopqrstuvwxyz0123456789"
result := make([]byte, length)
for i := 0; i < length; i++ {
result[i] = chars[rand.Intn(len(chars))]
}
return string(result)
}
// TestTCPConn tests TCP connection
// timeout: the total time before returning if something is wrong
// with the connection, in second
// interval: the interval time for retring after failure, in second
func TestTCPConn(addr string, timeout, interval int) error {
success := make(chan int)
cancel := make(chan int)
go func() {
for {
select {
case <-cancel:
break
default:
conn, err := net.DialTimeout("tcp", addr, time.Duration(timeout)*time.Second)
if err != nil {
log.Errorf("failed to connect to tcp://%s, retry after %d seconds :%v",
addr, interval, err)
time.Sleep(time.Duration(interval) * time.Second)
continue
}
conn.Close()
success <- 1
break
}
}
}()
select {
case <-success:
return nil
case <-time.After(time.Duration(timeout) * time.Second):
cancel <- 1
return fmt.Errorf("failed to connect to tcp:%s after %d seconds", addr, timeout)
}
}