| package topology |
| |
| /* |
| * 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 ( |
| "database/sql" |
| "encoding/json" |
| "errors" |
| "fmt" |
| "net/http" |
| "strconv" |
| |
| validation "github.com/go-ozzo/ozzo-validation" |
| |
| "github.com/apache/trafficcontrol/lib/go-tc" |
| "github.com/apache/trafficcontrol/lib/go-tc/tovalidate" |
| "github.com/apache/trafficcontrol/lib/go-util" |
| |
| "github.com/apache/trafficcontrol/traffic_ops/traffic_ops_golang/api" |
| "github.com/apache/trafficcontrol/traffic_ops/traffic_ops_golang/dbhelpers" |
| ) |
| |
| func Validate(reqObj tc.TopologiesQueueUpdateRequest, topologyName tc.TopologyName, tx *sql.Tx) error { |
| errorMap := validation.Errors{} |
| |
| if reqObj.Action != "queue" && reqObj.Action != "dequeue" { |
| errorMap["action"] = errors.New("action must be 'queue' or 'dequeue'") |
| } |
| |
| if _, cdnExists, err := dbhelpers.GetCDNNameFromID(tx, reqObj.CDNID); err != nil { |
| errorMap["cdnId"] = fmt.Errorf("could not check whether cdn exists for id %d", reqObj.CDNID) |
| } else if !cdnExists { |
| errorMap["cdnId"] = fmt.Errorf("no cdn exists with id %d", reqObj.CDNID) |
| } |
| |
| if topologyExists, err := dbhelpers.TopologyExists(tx, string(topologyName)); err != nil { |
| errorMap["topology"] = fmt.Errorf("could not check whether topology %s exists", topologyName) |
| } else if !topologyExists { |
| errorMap["topology"] = fmt.Errorf("no topology exists by the name of %s", topologyName) |
| } |
| |
| return util.JoinErrs(tovalidate.ToErrors(errorMap)) |
| } |
| |
| // QueueUpdateHandler queues server updates for all servers in all cachegroups included in a given topology. |
| func QueueUpdateHandler(w http.ResponseWriter, r *http.Request) { |
| inf, userErr, sysErr, errCode := api.NewInfo(r, []string{"name"}, []string{}) |
| if userErr != nil || sysErr != nil { |
| api.HandleErr(w, r, inf.Tx.Tx, errCode, userErr, sysErr) |
| return |
| } |
| defer inf.Close() |
| reqObj := tc.TopologiesQueueUpdateRequest{} |
| if err := json.NewDecoder(r.Body).Decode(&reqObj); err != nil { |
| api.HandleErr(w, r, inf.Tx.Tx, http.StatusBadRequest, errors.New("malformed JSON: "+err.Error()), nil) |
| return |
| } |
| topologyName := tc.TopologyName(inf.Params["name"]) |
| if err := Validate(reqObj, topologyName, inf.Tx.Tx); err != nil { |
| api.HandleErr(w, r, inf.Tx.Tx, http.StatusBadRequest, fmt.Errorf("invalid request to queue updates: %s", err), nil) |
| return |
| } |
| if reqObj.Action == "queue" { |
| cdnName, ok, err := dbhelpers.GetCDNNameFromID(inf.Tx.Tx, reqObj.CDNID) |
| if err != nil { |
| api.HandleErr(w, r, inf.Tx.Tx, http.StatusInternalServerError, nil, errors.New("getting CDN name from ID '"+strconv.Itoa(int(reqObj.CDNID))+"': "+err.Error())) |
| return |
| } |
| if !ok { |
| api.HandleErr(w, r, inf.Tx.Tx, http.StatusBadRequest, errors.New("cdn "+strconv.Itoa(int(reqObj.CDNID))+" does not exist"), nil) |
| return |
| } |
| userErr, sysErr, statusCode := dbhelpers.CheckIfCurrentUserHasCdnLock(inf.Tx.Tx, string(cdnName), inf.User.UserName) |
| if userErr != nil || sysErr != nil { |
| api.HandleErr(w, r, inf.Tx.Tx, statusCode, userErr, sysErr) |
| return |
| } |
| } |
| |
| if reqObj.Action == "queue" { |
| if err := dbhelpers.QueueUpdateForServerWithTopologyCDN(inf.Tx.Tx, topologyName, reqObj.CDNID); err != nil { |
| api.HandleErr(w, r, inf.Tx.Tx, http.StatusInternalServerError, nil, fmt.Errorf("topology queueing updates: %w", err)) |
| return |
| } |
| } else { |
| if err := dbhelpers.DequeueUpdateForServerWithTopologyCDN(inf.Tx.Tx, topologyName, reqObj.CDNID); err != nil { |
| api.HandleErr(w, r, inf.Tx.Tx, http.StatusInternalServerError, nil, fmt.Errorf("topology queueing updates: %w", err)) |
| return |
| } |
| } |
| |
| message := fmt.Sprintf("TOPOLOGY: %s, ACTION: Topology server updates %sd", topologyName, reqObj.Action) |
| api.CreateChangeLogRawTx(api.ApiChange, message, inf.User, inf.Tx.Tx) |
| api.WriteResp(w, r, tc.TopologiesQueueUpdate{Action: reqObj.Action, CDNID: reqObj.CDNID, Topology: topologyName}) |
| } |