| 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" |
| "strings" |
| |
| "github.com/apache/trafficcontrol/lib/go-tc" |
| ) |
| |
| const ContentTypeURLSig = ContentTypeTextASCII |
| const LineCommentURLSig = LineCommentHash |
| |
| // URLSigConfigOpts contains settings to configure generation options. |
| type URLSigConfigOpts struct { |
| // HdrComment is the header comment to include at the beginning of the file. |
| // This should be the text desired, without comment syntax (like # or //). The file's comment syntax will be added. |
| // To omit the header comment, pass the empty string. |
| HdrComment string |
| } |
| |
| func MakeURLSigConfig( |
| fileName string, |
| server *Server, |
| serverParams []tc.Parameter, |
| allURLSigKeys map[tc.DeliveryServiceName]tc.URLSigKeys, |
| opt *URLSigConfigOpts, |
| ) (Cfg, error) { |
| if opt == nil { |
| opt = &URLSigConfigOpts{} |
| } |
| warnings := []string{} |
| |
| if len(server.ProfileNames) == 0 { |
| return Cfg{}, makeErr(warnings, "server missing Profiles") |
| } |
| |
| paramData, paramWarns := paramsToMap(filterParams(serverParams, fileName, "", "", "location")) |
| warnings = append(warnings, paramWarns...) |
| |
| dsName := getDSFromURLSigConfigFileName(fileName) |
| if dsName == "" { |
| return Cfg{}, makeErr(warnings, "getting ds name: malformed config file '"+fileName+"'") |
| } |
| |
| urlSigKeys, ok := allURLSigKeys[tc.DeliveryServiceName(dsName)] |
| if !ok { |
| warnings = append(warnings, "no keys fetched for ds '"+dsName+"!") |
| urlSigKeys = tc.URLSigKeys{} |
| } |
| |
| hdr := makeHdrComment(opt.HdrComment) |
| |
| sep := " = " |
| |
| text := hdr |
| |
| paramLines := []string{} |
| for paramName, paramVal := range paramData { |
| if len(urlSigKeys) == 0 || !strings.HasPrefix(paramName, "key") { |
| paramLines = append(paramLines, paramName+sep+paramVal+"\n") |
| } |
| } |
| sort.Strings(paramLines) |
| text += strings.Join(paramLines, "") |
| |
| keyLines := []string{} |
| for key, val := range urlSigKeys { |
| keyLines = append(keyLines, key+sep+val+"\n") |
| } |
| sort.Strings(keyLines) |
| text += strings.Join(keyLines, "") |
| |
| return Cfg{ |
| Text: text, |
| ContentType: ContentTypeURLSig, |
| LineComment: LineCommentURLSig, |
| Secure: true, |
| Warnings: warnings, |
| }, nil |
| } |
| |
| // getDSFromURLSigConfigFileName returns the DS of a URLSig config file name. |
| // For example, "url_sig_foobar.config" returns "foobar". |
| // If the given string is shorter than len("url_sig_a.config"), the empty string is returned. |
| func getDSFromURLSigConfigFileName(fileName string) string { |
| if !strings.HasPrefix(fileName, "url_sig_") || !strings.HasSuffix(fileName, ".config") || len(fileName) <= len("url_sig_")+len(".config") { |
| return "" |
| } |
| fileName = fileName[len("url_sig_"):] |
| fileName = fileName[:len(fileName)-len(".config")] |
| return fileName |
| } |