| package atscfg |
| |
| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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. |
| */ |
| |
| import ( |
| "sort" |
| "strconv" |
| "strings" |
| |
| "github.com/apache/trafficcontrol/lib/go-tc" |
| ) |
| |
| const ServerCacheDotConfigIncludeInactiveDSes = false |
| |
| func makeCacheDotConfigMid( |
| server *Server, |
| deliveryServices []DeliveryService, |
| opt *CacheDotConfigOpts, |
| ) (Cfg, error) { |
| if opt == nil { |
| opt = &CacheDotConfigOpts{} |
| } |
| warnings := []string{} |
| |
| if server.HostName == nil { |
| return Cfg{}, makeErr(warnings, "server missing HostName") |
| } |
| if !strings.HasPrefix(string(server.Type), tc.MidTypePrefix) { |
| return Cfg{}, makeErr(warnings, "server cache.config generation called for non-Mid server, this is a code error and should never happen! Please file a bug.") |
| } |
| |
| dses := map[tc.DeliveryServiceName]serverCacheConfigDS{} |
| for _, ds := range deliveryServices { |
| if ds.XMLID == nil || ds.Active == nil || ds.OrgServerFQDN == nil || ds.Type == nil { |
| // TODO orgserverfqdn is nil for some DSes - MSO? Verify. |
| continue |
| // return "", fmt.Errorf("getting delivery services: got DS with nil values! '%v' %v %+v\n", *ds.XMLID, *ds.ID, ds) |
| } |
| if !ServerCacheDotConfigIncludeInactiveDSes && !*ds.Active { |
| continue |
| } |
| dses[tc.DeliveryServiceName(*ds.XMLID)] = serverCacheConfigDS{OrgServerFQDN: *ds.OrgServerFQDN, Type: *ds.Type} |
| } |
| |
| text := makeHdrComment(opt.HdrComment) |
| |
| lines := []string{} |
| |
| seenOrigins := map[string]struct{}{} |
| for _, ds := range dses { |
| if ds.Type != tc.DSTypeHTTPNoCache { |
| continue |
| } |
| if _, ok := seenOrigins[ds.OrgServerFQDN]; ok { |
| continue |
| } |
| seenOrigins[ds.OrgServerFQDN] = struct{}{} |
| |
| originFQDN, originPort := getOriginFQDNAndPort(ds.OrgServerFQDN) |
| if originPort != nil { |
| lines = append(lines, `dest_domain=`+originFQDN+` port=`+strconv.Itoa(*originPort)+` scheme=http action=never-cache`+"\n") |
| } else { |
| lines = append(lines, `dest_domain=`+originFQDN+` scheme=http action=never-cache`+"\n") |
| } |
| } |
| sort.Strings(lines) |
| text += strings.Join(lines, "") |
| |
| return Cfg{ |
| Text: text, |
| ContentType: ContentTypeCacheDotConfig, |
| LineComment: LineCommentCacheDotConfig, |
| Warnings: warnings, |
| }, nil |
| } |
| |
| // TODO unit test |
| func getOriginFQDNAndPort(origin string) (string, *int) { |
| origin = strings.TrimSpace(origin) |
| origin = strings.Replace(origin, `https://`, ``, -1) |
| origin = strings.Replace(origin, `http://`, ``, -1) |
| |
| // if the origin includes a path, strip it |
| |
| slashI := strings.Index(origin, `/`) |
| if slashI != -1 { |
| origin = origin[:slashI] |
| } |
| |
| hostName := origin |
| |
| colonI := strings.Index(origin, ":") |
| if colonI == -1 { |
| return hostName, nil // no :, the origin must not include a port |
| } |
| portStr := origin[colonI+1:] |
| port, err := strconv.Atoi(portStr) |
| if err != nil { |
| // either the port isn't an integer, or the : we found was something else. |
| // Return the origin, as if it didn't contain a port. |
| return hostName, nil |
| } |
| |
| hostName = origin[:colonI] |
| return hostName, &port |
| } |
| |
| type serverCacheConfigDS struct { |
| OrgServerFQDN string |
| Type tc.DSType |
| } |