/* * MinIO Cloud Storage, (C) 2016-2019 MinIO, Inc. * * Licensed 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. */ package cmd import ( "bytes" "context" "encoding/json" "io" "io/ioutil" "net/http" "net/http/httptest" "net/url" "sync" "testing" "github.com/gorilla/mux" "github.com/minio/minio/pkg/auth" "github.com/minio/minio/pkg/madmin" ) // adminErasureTestBed - encapsulates subsystems that need to be setup for // admin-handler unit tests. type adminErasureTestBed struct { erasureDirs []string objLayer ObjectLayer router *mux.Router } // prepareAdminErasureTestBed - helper function that setups a single-node // Erasure backend for admin-handler tests. func prepareAdminErasureTestBed(ctx context.Context) (*adminErasureTestBed, error) { // reset global variables to start afresh. resetTestGlobals() // Set globalIsErasure to indicate that the setup uses an erasure // code backend. globalIsErasure = true // Initializing objectLayer for HealFormatHandler. objLayer, erasureDirs, xlErr := initTestErasureObjLayer(ctx) if xlErr != nil { return nil, xlErr } // Initialize minio server config. if err := newTestConfig(globalMinioDefaultRegion, objLayer); err != nil { return nil, err } // Initialize boot time globalBootTime = UTCNow() globalEndpoints = mustGetZoneEndpoints(erasureDirs...) newAllSubsystems() initAllSubsystems(ctx, objLayer) // Setup admin mgmt REST API handlers. adminRouter := mux.NewRouter() registerAdminRouter(adminRouter, true, true) return &adminErasureTestBed{ erasureDirs: erasureDirs, objLayer: objLayer, router: adminRouter, }, nil } // TearDown - method that resets the test bed for subsequent unit // tests to start afresh. func (atb *adminErasureTestBed) TearDown() { removeRoots(atb.erasureDirs) resetTestGlobals() } // initTestObjLayer - Helper function to initialize an Erasure-based object // layer and set globalObjectAPI. func initTestErasureObjLayer(ctx context.Context) (ObjectLayer, []string, error) { erasureDirs, err := getRandomDisks(16) if err != nil { return nil, nil, err } endpoints := mustGetNewEndpoints(erasureDirs...) storageDisks, format, err := waitForFormatErasure(true, endpoints, 1, 1, 16, "") if err != nil { removeRoots(erasureDirs) return nil, nil, err } globalPolicySys = NewPolicySys() objLayer := &erasureZones{zones: make([]*erasureSets, 1)} objLayer.zones[0], err = newErasureSets(ctx, endpoints, storageDisks, format) if err != nil { return nil, nil, err } // Make objLayer available to all internal services via globalObjectAPI. globalObjLayerMutex.Lock() globalObjectAPI = objLayer globalObjLayerMutex.Unlock() return objLayer, erasureDirs, nil } // cmdType - Represents different service subcomands like status, stop // and restart. type cmdType int const ( restartCmd cmdType = iota stopCmd ) // toServiceSignal - Helper function that translates a given cmdType // value to its corresponding serviceSignal value. func (c cmdType) toServiceSignal() serviceSignal { switch c { case restartCmd: return serviceRestart case stopCmd: return serviceStop } return serviceRestart } func (c cmdType) toServiceAction() madmin.ServiceAction { switch c { case restartCmd: return madmin.ServiceActionRestart case stopCmd: return madmin.ServiceActionStop } return madmin.ServiceActionRestart } // testServiceSignalReceiver - Helper function that simulates a // go-routine waiting on service signal. func testServiceSignalReceiver(cmd cmdType, t *testing.T) { expectedCmd := cmd.toServiceSignal() serviceCmd := <-globalServiceSignalCh if serviceCmd != expectedCmd { t.Errorf("Expected service command %v but received %v", expectedCmd, serviceCmd) } } // getServiceCmdRequest - Constructs a management REST API request for service // subcommands for a given cmdType value. func getServiceCmdRequest(cmd cmdType, cred auth.Credentials) (*http.Request, error) { queryVal := url.Values{} queryVal.Set("action", string(cmd.toServiceAction())) resource := adminPathPrefix + adminAPIVersionPrefix + "/service?" + queryVal.Encode() req, err := newTestRequest(http.MethodPost, resource, 0, nil) if err != nil { return nil, err } // management REST API uses signature V4 for authentication. err = signRequestV4(req, cred.AccessKey, cred.SecretKey) if err != nil { return nil, err } return req, nil } // testServicesCmdHandler - parametrizes service subcommand tests on // cmdType value. func testServicesCmdHandler(cmd cmdType, t *testing.T) { ctx, cancel := context.WithCancel(context.Background()) defer cancel() adminTestBed, err := prepareAdminErasureTestBed(ctx) if err != nil { t.Fatal("Failed to initialize a single node Erasure backend for admin handler tests.") } defer adminTestBed.TearDown() // Initialize admin peers to make admin RPC calls. Note: In a // single node setup, this degenerates to a simple function // call under the hood. globalMinioAddr = "127.0.0.1:9000" var wg sync.WaitGroup // Setting up a go routine to simulate ServerRouter's // handleServiceSignals for stop and restart commands. if cmd == restartCmd { wg.Add(1) go func() { defer wg.Done() testServiceSignalReceiver(cmd, t) }() } credentials := globalActiveCred req, err := getServiceCmdRequest(cmd, credentials) if err != nil { t.Fatalf("Failed to build service status request %v", err) } rec := httptest.NewRecorder() adminTestBed.router.ServeHTTP(rec, req) if rec.Code != http.StatusOK { resp, _ := ioutil.ReadAll(rec.Body) t.Errorf("Expected to receive %d status code but received %d. Body (%s)", http.StatusOK, rec.Code, string(resp)) } // Wait until testServiceSignalReceiver() called in a goroutine quits. wg.Wait() } // Test for service restart management REST API. func TestServiceRestartHandler(t *testing.T) { testServicesCmdHandler(restartCmd, t) } // buildAdminRequest - helper function to build an admin API request. func buildAdminRequest(queryVal url.Values, method, path string, contentLength int64, bodySeeker io.ReadSeeker) (*http.Request, error) { req, err := newTestRequest(method, adminPathPrefix+adminAPIVersionPrefix+path+"?"+queryVal.Encode(), contentLength, bodySeeker) if err != nil { return nil, err } cred := globalActiveCred err = signRequestV4(req, cred.AccessKey, cred.SecretKey) if err != nil { return nil, err } return req, nil } func TestAdminServerInfo(t *testing.T) { ctx, cancel := context.WithCancel(context.Background()) defer cancel() adminTestBed, err := prepareAdminErasureTestBed(ctx) if err != nil { t.Fatal("Failed to initialize a single node Erasure backend for admin handler tests.") } defer adminTestBed.TearDown() // Initialize admin peers to make admin RPC calls. globalMinioAddr = "127.0.0.1:9000" // Prepare query params for set-config mgmt REST API. queryVal := url.Values{} queryVal.Set("info", "") req, err := buildAdminRequest(queryVal, http.MethodGet, "/info", 0, nil) if err != nil { t.Fatalf("Failed to construct get-config object request - %v", err) } rec := httptest.NewRecorder() adminTestBed.router.ServeHTTP(rec, req) if rec.Code != http.StatusOK { t.Errorf("Expected to succeed but failed with %d", rec.Code) } results := madmin.InfoMessage{} err = json.NewDecoder(rec.Body).Decode(&results) if err != nil { t.Fatalf("Failed to decode set config result json %v", err) } if results.Region != globalMinioDefaultRegion { t.Errorf("Expected %s, got %s", globalMinioDefaultRegion, results.Region) } } // TestToAdminAPIErrCode - test for toAdminAPIErrCode helper function. func TestToAdminAPIErrCode(t *testing.T) { testCases := []struct { err error expectedAPIErr APIErrorCode }{ // 1. Server not in quorum. { err: errErasureWriteQuorum, expectedAPIErr: ErrAdminConfigNoQuorum, }, // 2. No error. { err: nil, expectedAPIErr: ErrNone, }, // 3. Non-admin API specific error. { err: errDiskNotFound, expectedAPIErr: toAPIErrorCode(GlobalContext, errDiskNotFound), }, } for i, test := range testCases { actualErr := toAdminAPIErrCode(GlobalContext, test.err) if actualErr != test.expectedAPIErr { t.Errorf("Test %d: Expected %v but received %v", i+1, test.expectedAPIErr, actualErr) } } } func TestExtractHealInitParams(t *testing.T) { mkParams := func(clientToken string, forceStart, forceStop bool) url.Values { v := url.Values{} if clientToken != "" { v.Add(mgmtClientToken, clientToken) } if forceStart { v.Add(mgmtForceStart, "") } if forceStop { v.Add(mgmtForceStop, "") } return v } qParmsArr := []url.Values{ // Invalid cases mkParams("", true, true), mkParams("111", true, true), mkParams("111", true, false), mkParams("111", false, true), // Valid cases follow mkParams("", true, false), mkParams("", false, true), mkParams("", false, false), mkParams("111", false, false), } varsArr := []map[string]string{ // Invalid cases {mgmtPrefix: "objprefix"}, // Valid cases {}, {mgmtBucket: "bucket"}, {mgmtBucket: "bucket", mgmtPrefix: "objprefix"}, } // Body is always valid - we do not test JSON decoding. body := `{"recursive": false, "dryRun": true, "remove": false, "scanMode": 0}` // Test all combinations! for pIdx, parms := range qParmsArr { for vIdx, vars := range varsArr { _, err := extractHealInitParams(vars, parms, bytes.NewBuffer([]byte(body))) isErrCase := false if pIdx < 4 || vIdx < 1 { isErrCase = true } if err != ErrNone && !isErrCase { t.Errorf("Got unexpected error: %v %v %v", pIdx, vIdx, err) } else if err == ErrNone && isErrCase { t.Errorf("Got no error but expected one: %v %v", pIdx, vIdx) } } } }