istio.io/istio@v0.0.0-20240520182934-d79c90f27776/istioctl/pkg/multixds/google.go (about) 1 // Copyright Istio Authors. 2 // 3 // Licensed under the Apache License, Version 2.0 (the "License"); 4 // you may not use this file except in compliance with the License. 5 // You may obtain a copy of the License at 6 // 7 // http://www.apache.org/licenses/LICENSE-2.0 8 // 9 // Unless required by applicable law or agreed to in writing, software 10 // distributed under the License is distributed on an "AS IS" BASIS, 11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 // See the License for the specific language governing permissions and 13 // limitations under the License. 14 15 package multixds 16 17 import ( 18 "fmt" 19 "net/url" 20 "strings" 21 ) 22 23 func isMCPAddr(u *url.URL) bool { 24 return strings.HasSuffix(u.Host, ".googleapis.com") || strings.HasSuffix(u.Host, ".googleapis.com:443") 25 } 26 27 func parseMCPAddr(u *url.URL) (*xdsAddr, error) { 28 ret := &xdsAddr{host: u.Host} 29 if !strings.HasSuffix(ret.host, ":443") { 30 ret.host += ":443" 31 } 32 const projSeg = "/projects/" 33 i := strings.Index(u.Path, projSeg) 34 if i == -1 { 35 return nil, fmt.Errorf("webhook URL %s doesn't contain the projects segment", u) 36 } 37 i += len(projSeg) 38 j := strings.IndexByte(u.Path[i:], '/') 39 if j == -1 { 40 return nil, fmt.Errorf("webhook URL %s is malformed", u) 41 } 42 ret.gcpProject = u.Path[i : i+j] 43 44 const crSeg = "/ISTIO_META_CLOUDRUN_ADDR/" 45 i += j 46 j = strings.Index(u.Path[i:], crSeg) 47 if j == -1 { 48 return nil, fmt.Errorf("webhook URL %s is missing %s", u, crSeg) 49 } 50 ret.istiod = u.Path[i+j+len(crSeg):] 51 52 return ret, nil 53 }