mirror of
https://github.com/goharbor/harbor.git
synced 2024-11-04 17:49:48 +01:00
115 lines
3.1 KiB
Go
115 lines
3.1 KiB
Go
/*
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Copyright (c) 2016 VMware, Inc. 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 utils
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import (
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"errors"
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"fmt"
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"io/ioutil"
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"net/http"
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"os"
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"regexp"
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"github.com/vmware/harbor/utils/log"
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)
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// BuildRegistryURL ...
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func BuildRegistryURL(segments ...string) string {
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registryURL := os.Getenv("REGISTRY_URL")
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if registryURL == "" {
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registryURL = "http://localhost:5000"
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}
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url := registryURL + "/v2"
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for _, s := range segments {
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if s == "v2" {
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log.Debugf("unnecessary v2 in %v", segments)
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continue
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}
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url += "/" + s
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}
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return url
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}
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// RegistryAPIGet triggers GET request to the URL which is the endpoint of registry and returns the response body.
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// It will attach a valid jwt token to the request if registry requires.
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func RegistryAPIGet(url, username string) ([]byte, error) {
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log.Debugf("Registry API url: %s", url)
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response, err := http.Get(url)
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if err != nil {
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return nil, err
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}
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result, err := ioutil.ReadAll(response.Body)
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if err != nil {
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return nil, err
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}
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defer response.Body.Close()
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if response.StatusCode == http.StatusOK {
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return result, nil
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} else if response.StatusCode == http.StatusUnauthorized {
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authenticate := response.Header.Get("WWW-Authenticate")
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log.Debugf("authenticate header: %s", authenticate)
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var service string
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var scopes []string
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//Disregard the case for hanlding multiple scopes for http call initiated from UI, as there's refactor planned.
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re := regexp.MustCompile(`service=\"(.*?)\".*scope=\"(.*?)\"`)
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res := re.FindStringSubmatch(authenticate)
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if len(res) > 2 {
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service = res[1]
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scopes = append(scopes, res[2])
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}
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token, err := GenTokenForUI(username, service, scopes)
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if err != nil {
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return nil, err
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}
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request, err := http.NewRequest("GET", url, nil)
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if err != nil {
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return nil, err
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}
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request.Header.Add("Authorization", "Bearer "+token)
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client := &http.Client{}
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client.CheckRedirect = func(req *http.Request, via []*http.Request) error {
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// log.Infof("via length: %d\n", len(via))
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if len(via) >= 10 {
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return fmt.Errorf("too many redirects")
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}
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for k, v := range via[0].Header {
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if _, ok := req.Header[k]; !ok {
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req.Header[k] = v
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}
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}
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return nil
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}
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response, err = client.Do(request)
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if err != nil {
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return nil, err
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}
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if response.StatusCode != http.StatusOK {
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errMsg := fmt.Sprintf("Unexpected return code from registry: %d", response.StatusCode)
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log.Error(errMsg)
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return nil, fmt.Errorf(errMsg)
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}
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result, err = ioutil.ReadAll(response.Body)
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if err != nil {
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return nil, err
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}
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defer response.Body.Close()
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return result, nil
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} else {
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return nil, errors.New(string(result))
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}
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}
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