First pass linter cleanup (#603)

* first pass linter cleanup

* address review comments

server/.golangci.yml

@@ -12,10 +12,14 @@ linters-settings:
     enable-all: true
     disable:
       - fieldalignment
+  lll:
+    line-length: 150
+  gomnd:
+    ignored-numbers: 10
+
 
 linters:
   disable-all: true
-
   enable:
     - gofmt
     - goimports
@@ -43,10 +47,10 @@ linters:
     - goconst
     - gocritic
     - godot
-    - goerr113
+#    - goerr113
     - goheader
     - golint
-    - gomnd
+#    - gomnd
     - gomodguard
     - goprintffuncname
     - gosimple

server/api/api.go

@@ -1,7 +1,6 @@
 package api
 
 import (
-	"context"
 	"encoding/json"
 	"errors"
 	"fmt"
@@ -22,13 +21,14 @@ import (
 )
 
 const (
-	HEADER_REQUESTED_WITH     = "X-Requested-With"
-	HEADER_REQUESTED_WITH_XML = "XMLHttpRequest"
+	HeaderRequestedWith    = "X-Requested-With"
+	HeaderRequestedWithXML = "XMLHttpRequest"
+	SingleUser             = "single-user"
 )
 
 const (
-	ERROR_NO_WORKSPACE_CODE    = 1000
-	ERROR_NO_WORKSPACE_MESSAGE = "No workspace"
+	ErrorNoWorkspaceCode    = 1000
+	ErrorNoWorkspaceMessage = "No workspace"
 )
 
 // ----------------------------------------------------------------------------------------------------
@@ -105,13 +105,8 @@ func (a *API) requireCSRFToken(next http.Handler) http.Handler {
 }
 
 func (a *API) checkCSRFToken(r *http.Request) bool {
-	token := r.Header.Get(HEADER_REQUESTED_WITH)
-
-	if token == HEADER_REQUESTED_WITH_XML {
-		return true
-	}
-
-	return false
+	token := r.Header.Get(HeaderRequestedWith)
+	return token == HeaderRequestedWithXML
 }
 
 func (a *API) hasValidReadTokenForBlock(r *http.Request, container store.Container, blockID string) bool {
@@ -158,7 +153,7 @@ func (a *API) getContainerAllowingReadTokenForBlock(r *http.Request, blockID str
 			return &container, nil
 		}
 
-		return nil, errors.New("Access denied to workspace")
+		return nil, errors.New("access denied to workspace")
 	}
 
 	// Native auth: always use root workspace
@@ -176,7 +171,7 @@ func (a *API) getContainerAllowingReadTokenForBlock(r *http.Request, blockID str
 		return &container, nil
 	}
 
-	return nil, errors.New("Access denied to workspace")
+	return nil, errors.New("access denied to workspace")
 }
 
 func (a *API) getContainer(r *http.Request) (*store.Container, error) {
@@ -263,7 +258,7 @@ func stampModifiedByUser(r *http.Request, blocks []model.Block, auditRec *audit.
 	ctx := r.Context()
 	session := ctx.Value("session").(*model.Session)
 	userID := session.UserID
-	if userID == "single-user" {
+	if userID == SingleUser {
 		userID = ""
 	}
 
@@ -444,12 +439,12 @@ func (a *API) handleGetMe(w http.ResponseWriter, r *http.Request) {
 	auditRec := a.makeAuditRecord(r, "getMe", audit.Fail)
 	defer a.audit.LogRecord(audit.LevelRead, auditRec)
 
-	if session.UserID == "single-user" {
+	if session.UserID == SingleUser {
 		now := time.Now().Unix()
 		user = &model.User{
-			ID:       "single-user",
-			Username: "single-user",
-			Email:    "single-user",
+			ID:       SingleUser,
+			Username: SingleUser,
+			Email:    SingleUser,
 			CreateAt: now,
 			UpdateAt: now,
 		}
@@ -659,12 +654,16 @@ func (a *API) handleExport(w http.ResponseWriter, r *http.Request) {
 	defer a.audit.LogRecord(audit.LevelRead, auditRec)
 	auditRec.AddMeta("rootID", rootID)
 
-	blocks := []model.Block{}
+	var blocks []model.Block
 	if rootID == "" {
 		blocks, err = a.app.GetAllBlocks(*container)
 	} else {
 		blocks, err = a.app.GetBlocksWithRootID(*container, rootID)
 	}
+	if err != nil {
+		a.errorResponse(w, http.StatusInternalServerError, "", err)
+		return
+	}
 
 	a.logger.Debug("raw blocks", mlog.Int("block_count", len(blocks)))
 	auditRec.AddMeta("rawCount", len(blocks))
@@ -720,15 +719,6 @@ func filterOrphanBlocks(blocks []model.Block) (ret []model.Block) {
 	return blocks
 }
 
-func arrayContainsBlockWithID(array []model.Block, blockID string) bool {
-	for _, item := range array {
-		if item.ID == blockID {
-			return true
-		}
-	}
-	return false
-}
-
 func (a *API) handleImport(w http.ResponseWriter, r *http.Request) {
 	// swagger:operation POST /api/v1/workspaces/{workspaceID}/blocks/import importBlocks
 	//
@@ -936,7 +926,7 @@ func (a *API) handlePostSharing(w http.ResponseWriter, r *http.Request) {
 	ctx := r.Context()
 	session := ctx.Value("session").(*model.Session)
 	userID := session.UserID
-	if userID == "single-user" {
+	if userID == SingleUser {
 		userID = ""
 	}
 	sharing.ModifiedBy = userID
@@ -1213,7 +1203,7 @@ func (a *API) handleUploadFile(w http.ResponseWriter, r *http.Request) {
 	auditRec.AddMeta("rootID", rootID)
 	auditRec.AddMeta("filename", handle.Filename)
 
-	fileId, err := a.app.SaveFile(file, workspaceID, rootID, handle.Filename)
+	fileID, err := a.app.SaveFile(file, workspaceID, rootID, handle.Filename)
 	if err != nil {
 		a.errorResponse(w, http.StatusInternalServerError, "", err)
 		return
@@ -1221,9 +1211,9 @@ func (a *API) handleUploadFile(w http.ResponseWriter, r *http.Request) {
 
 	a.logger.Debug("uploadFile",
 		mlog.String("filename", handle.Filename),
-		mlog.String("fileID", fileId),
+		mlog.String("fileID", fileID),
 	)
-	data, err := json.Marshal(FileUploadResponse{FileID: fileId})
+	data, err := json.Marshal(FileUploadResponse{FileID: fileID})
 	if err != nil {
 		a.errorResponse(w, http.StatusInternalServerError, "", err)
 		return
@@ -1231,7 +1221,7 @@ func (a *API) handleUploadFile(w http.ResponseWriter, r *http.Request) {
 
 	jsonBytesResponse(w, http.StatusOK, data)
 
-	auditRec.AddMeta("fileID", fileId)
+	auditRec.AddMeta("fileID", fileID)
 	auditRec.Success()
 }
 
@@ -1269,7 +1259,7 @@ func (a *API) getWorkspaceUsers(w http.ResponseWriter, r *http.Request) {
 	ctx := r.Context()
 	session := ctx.Value("session").(*model.Session)
 	if !a.app.DoesUserHaveWorkspaceAccess(session.UserID, workspaceID) {
-		a.errorResponse(w, http.StatusForbidden, "Access denied to workspace", errors.New("Access denied to workspace"))
+		a.errorResponse(w, http.StatusForbidden, "Access denied to workspace", errors.New("access denied to workspace"))
 		return
 	}
 
@@ -1307,7 +1297,7 @@ func (a *API) errorResponse(w http.ResponseWriter, code int, message string, sou
 		data = []byte("{}")
 	}
 	w.WriteHeader(code)
-	w.Write(data)
+	_, _ = w.Write(data)
 }
 
 func (a *API) errorResponseWithCode(w http.ResponseWriter, statusCode int, errorCode int, message string, sourceError error) {
@@ -1322,27 +1312,21 @@ func (a *API) errorResponseWithCode(w http.ResponseWriter, statusCode int, error
 		data = []byte("{}")
 	}
 	w.WriteHeader(statusCode)
-	w.Write(data)
+	_, _ = w.Write(data)
 }
 
 func (a *API) noContainerErrorResponse(w http.ResponseWriter, sourceError error) {
-	a.errorResponseWithCode(w, http.StatusBadRequest, ERROR_NO_WORKSPACE_CODE, ERROR_NO_WORKSPACE_MESSAGE, sourceError)
+	a.errorResponseWithCode(w, http.StatusBadRequest, ErrorNoWorkspaceCode, ErrorNoWorkspaceMessage, sourceError)
 }
 
-func jsonStringResponse(w http.ResponseWriter, code int, message string) {
+func jsonStringResponse(w http.ResponseWriter, code int, message string) { //nolint:unparam
 	w.Header().Set("Content-Type", "application/json")
 	w.WriteHeader(code)
 	fmt.Fprint(w, message)
 }
 
-func jsonBytesResponse(w http.ResponseWriter, code int, json []byte) {
+func jsonBytesResponse(w http.ResponseWriter, code int, json []byte) { //nolint:unparam
 	w.Header().Set("Content-Type", "application/json")
 	w.WriteHeader(code)
-	w.Write(json)
-}
-
-func addUserID(rw http.ResponseWriter, req *http.Request, next http.Handler) {
-	ctx := context.WithValue(req.Context(), "userid", req.Header.Get("userid"))
-	req = req.WithContext(ctx)
-	next.ServeHTTP(rw, req)
+	_, _ = w.Write(json)
 }

server/api/audit.go

@@ -8,7 +8,7 @@ import (
 )
 
 // makeAuditRecord creates an audit record pre-populated with data from the request.
-func (a *API) makeAuditRecord(r *http.Request, event string, initialStatus string) *audit.Record {
+func (a *API) makeAuditRecord(r *http.Request, event string, initialStatus string) *audit.Record { //nolint:unparam
 	ctx := r.Context()
 	var sessionID string
 	var userID string

server/api/auth.go

@@ -4,6 +4,7 @@ import (
 	"context"
 	"encoding/json"
 	"errors"
+	"fmt"
 	"io/ioutil"
 	"net"
 	"net/http"
@@ -18,6 +19,10 @@ import (
 	"github.com/mattermost/focalboard/server/services/mlog"
 )
 
+const (
+	MinimumPasswordLength = 8
+)
+
 // LoginRequest is a login request
 // swagger:model
 type LoginRequest struct {
@@ -102,13 +107,13 @@ type ChangePasswordRequest struct {
 	NewPassword string `json:"newPassword"`
 }
 
-// IsValid validates a password change request
+// IsValid validates a password change request.
 func (rd *ChangePasswordRequest) IsValid() error {
 	if rd.OldPassword == "" {
-		return errors.New("Old password is required")
+		return errors.New("old password is required")
 	}
 	if rd.NewPassword == "" {
-		return errors.New("New password is required")
+		return errors.New("new password is required")
 	}
 	if err := isValidPassword(rd.NewPassword); err != nil {
 		return err
@@ -118,8 +123,8 @@ func (rd *ChangePasswordRequest) IsValid() error {
 }
 
 func isValidPassword(password string) error {
-	if len(password) < 8 {
-		return errors.New("Password must be at least 8 characters")
+	if len(password) < MinimumPasswordLength {
+		return fmt.Errorf("password must be at least %d characters", MinimumPasswordLength)
 	}
 	return nil
 }
@@ -243,9 +248,9 @@ func (a *API) handleRegister(w http.ResponseWriter, r *http.Request) {
 
 	// Validate token
 	if len(registerData.Token) > 0 {
-		workspace, err := a.app.GetRootWorkspace()
-		if err != nil {
-			a.errorResponse(w, http.StatusInternalServerError, "", err)
+		workspace, err2 := a.app.GetRootWorkspace()
+		if err2 != nil {
+			a.errorResponse(w, http.StatusInternalServerError, "", err2)
 			return
 		}
 
@@ -255,9 +260,9 @@ func (a *API) handleRegister(w http.ResponseWriter, r *http.Request) {
 		}
 	} else {
 		// No signup token, check if no active users
-		userCount, err := a.app.GetRegisteredUserCount()
-		if err != nil {
-			a.errorResponse(w, http.StatusInternalServerError, "", err)
+		userCount, err2 := a.app.GetRegisteredUserCount()
+		if err2 != nil {
+			a.errorResponse(w, http.StatusInternalServerError, "", err2)
 			return
 		}
 		if userCount > 0 {
@@ -335,7 +340,7 @@ func (a *API) handleChangePassword(w http.ResponseWriter, r *http.Request) {
 	}
 
 	var requestData ChangePasswordRequest
-	if err := json.Unmarshal(requestBody, &requestData); err != nil {
+	if err = json.Unmarshal(requestBody, &requestData); err != nil {
 		a.errorResponse(w, http.StatusInternalServerError, "", err)
 		return
 	}
@@ -374,9 +379,9 @@ func (a *API) attachSession(handler func(w http.ResponseWriter, r *http.Request)
 
 			now := time.Now().Unix()
 			session := &model.Session{
-				ID:          "single-user",
+				ID:          SingleUser,
 				Token:       token,
-				UserID:      "single-user",
+				UserID:      SingleUser,
 				AuthService: a.authService,
 				Props:       map[string]interface{}{},
 				CreateAt:    now,
@@ -441,6 +446,5 @@ func (a *API) adminRequired(handler func(w http.ResponseWriter, r *http.Request)
 		}
 
 		handler(w, r)
-		return
 	}
 }

server/app/auth.go

@@ -10,53 +10,61 @@ import (
 	"github.com/pkg/errors"
 )
 
-// GetSession Get a user active session and refresh the session if is needed
+const (
+	DaysPerMonth     = 30
+	DaysPerWeek      = 7
+	HoursPerDay      = 24
+	MinutesPerHour   = 60
+	SecondsPerMinute = 60
+)
+
+// GetSession Get a user active session and refresh the session if is needed.
 func (a *App) GetSession(token string) (*model.Session, error) {
 	return a.auth.GetSession(token)
 }
 
-// IsValidReadToken validates the read token for a block
+// IsValidReadToken validates the read token for a block.
 func (a *App) IsValidReadToken(c store.Container, blockID string, readToken string) (bool, error) {
 	return a.auth.IsValidReadToken(c, blockID, readToken)
 }
 
-// GetRegisteredUserCount returns the number of registered users
+// GetRegisteredUserCount returns the number of registered users.
 func (a *App) GetRegisteredUserCount() (int, error) {
 	return a.store.GetRegisteredUserCount()
 }
 
-// GetDailyActiveUsers returns the number of daily active users
+// GetDailyActiveUsers returns the number of daily active users.
 func (a *App) GetDailyActiveUsers() (int, error) {
-	secondsAgo := int64(60 * 60 * 24)
+	secondsAgo := int64(SecondsPerMinute * MinutesPerHour * HoursPerDay)
 	return a.store.GetActiveUserCount(secondsAgo)
 }
 
-// GetWeeklyActiveUsers returns the number of weekly active users
+// GetWeeklyActiveUsers returns the number of weekly active users.
 func (a *App) GetWeeklyActiveUsers() (int, error) {
-	secondsAgo := int64(60 * 60 * 24 * 7)
+	secondsAgo := int64(SecondsPerMinute * MinutesPerHour * HoursPerDay * DaysPerWeek)
 	return a.store.GetActiveUserCount(secondsAgo)
 }
 
-// GetMonthlyActiveUsers returns the number of monthly active users
+// GetMonthlyActiveUsers returns the number of monthly active users.
 func (a *App) GetMonthlyActiveUsers() (int, error) {
-	secondsAgo := int64(60 * 60 * 24 * 30)
+	secondsAgo := int64(SecondsPerMinute * MinutesPerHour * HoursPerDay * DaysPerMonth)
 	return a.store.GetActiveUserCount(secondsAgo)
 }
 
-// GetUser Get an existing active user by id
-func (a *App) GetUser(ID string) (*model.User, error) {
-	if len(ID) < 1 {
+// GetUser gets an existing active user by id.
+func (a *App) GetUser(id string) (*model.User, error) {
+	if len(id) < 1 {
 		return nil, errors.New("no user ID")
 	}
 
-	user, err := a.store.GetUserById(ID)
+	user, err := a.store.GetUserByID(id)
 	if err != nil {
 		return nil, errors.Wrap(err, "unable to find user")
 	}
 	return user, nil
 }
 
-// Login create a new user session if the authentication data is valid
+// Login create a new user session if the authentication data is valid.
 func (a *App) Login(username, email, password, mfaToken string) (string, error) {
 	var user *model.User
 	if username != "" {
@@ -110,7 +118,7 @@ func (a *App) Login(username, email, password, mfaToken string) (string, error)
 	return session.Token, nil
 }
 
-// RegisterUser create a new user if the provided data is valid
+// RegisterUser creates a new user if the provided data is valid.
 func (a *App) RegisterUser(username, email, password string) error {
 	var user *model.User
 	if username != "" {
@@ -169,7 +177,7 @@ func (a *App) ChangePassword(userID, oldPassword, newPassword string) error {
 	var user *model.User
 	if userID != "" {
 		var err error
-		user, err = a.store.GetUserById(userID)
+		user, err = a.store.GetUserByID(userID)
 		if err != nil {
 			return errors.Wrap(err, "invalid username or password")
 		}

server/app/auth_test.go

@@ -70,8 +70,8 @@ func TestGetUser(t *testing.T) {
 		{"success", "goodID", false},
 	}
 
-	th.Store.EXPECT().GetUserById("badID").Return(nil, errors.New("Bad Id"))
-	th.Store.EXPECT().GetUserById("goodID").Return(mockUser, nil)
+	th.Store.EXPECT().GetUserByID("badID").Return(nil, errors.New("Bad Id"))
+	th.Store.EXPECT().GetUserByID("goodID").Return(mockUser, nil)
 
 	for _, test := range testcases {
 		t.Run(test.title, func(t *testing.T) {
@@ -168,8 +168,8 @@ func TestChangePassword(t *testing.T) {
 		{"success, using username", mockUser.ID, "testPassword", "newPassword", false},
 	}
 
-	th.Store.EXPECT().GetUserById("badID").Return(nil, errors.New("userID not found"))
-	th.Store.EXPECT().GetUserById(mockUser.ID).Return(mockUser, nil).Times(2)
+	th.Store.EXPECT().GetUserByID("badID").Return(nil, errors.New("userID not found"))
+	th.Store.EXPECT().GetUserByID(mockUser.ID).Return(mockUser, nil).Times(2)
 	th.Store.EXPECT().UpdateUserPasswordByID(mockUser.ID, gomock.Any()).Return(nil)
 
 	for _, test := range testcases {

server/app/blocks.go

@@ -38,20 +38,7 @@ func (a *App) InsertBlock(c store.Container, block model.Block) error {
 }
 
 func (a *App) InsertBlocks(c store.Container, blocks []model.Block) error {
-	blockIDsToNotify := []string{}
-
-	uniqueBlockIDs := make(map[string]bool)
-
 	for _, block := range blocks {
-		if !uniqueBlockIDs[block.ID] {
-			blockIDsToNotify = append(blockIDsToNotify, block.ID)
-		}
-
-		// ParentID as empty string denotes a block at the root
-		if !uniqueBlockIDs[block.ParentID] {
-			blockIDsToNotify = append(blockIDsToNotify, block.ParentID)
-		}
-
 		err := a.store.InsertBlock(c, block)
 		if err != nil {
 			return err
@@ -78,16 +65,11 @@ func (a *App) GetAllBlocks(c store.Container) ([]model.Block, error) {
 }
 
 func (a *App) DeleteBlock(c store.Container, blockID string, modifiedBy string) error {
-	blockIDsToNotify := []string{blockID}
 	parentID, err := a.GetParentID(c, blockID)
 	if err != nil {
 		return err
 	}
 
-	if len(parentID) > 0 {
-		blockIDsToNotify = append(blockIDsToNotify, parentID)
-	}
-
 	err = a.store.DeleteBlock(c, blockID, modifiedBy)
 	if err != nil {
 		return err

server/app/files.go

@@ -4,7 +4,6 @@ import (
 	"errors"
 	"fmt"
 	"io"
-	"os"
 	"path/filepath"
 	"strings"
 
@@ -40,16 +39,23 @@ func (a *App) GetFileReader(workspaceID, rootID, filename string) (filestore.Rea
 	}
 	// FIXUP: Check the deprecated old location
 	if workspaceID == "0" && !exists {
-		oldExists, err := a.filesBackend.FileExists(filename)
-		if err != nil {
-			return nil, err
+		oldExists, err2 := a.filesBackend.FileExists(filename)
+		if err2 != nil {
+			return nil, err2
 		}
 		if oldExists {
-			err := a.filesBackend.MoveFile(filename, filePath)
-			if err != nil {
-				a.logger.Error("ERROR moving file", mlog.String("old", filename), mlog.String("new", filePath))
+			err2 := a.filesBackend.MoveFile(filename, filePath)
+			if err2 != nil {
+				a.logger.Error("ERROR moving file",
+					mlog.String("old", filename),
+					mlog.String("new", filePath),
+					mlog.Err(err2),
+				)
 			} else {
-				a.logger.Debug("Moved file", mlog.String("old", filename), mlog.String("new", filePath))
+				a.logger.Debug("Moved file",
+					mlog.String("old", filename),
+					mlog.String("new", filePath),
+				)
 			}
 		}
 	}
@@ -61,8 +67,3 @@ func (a *App) GetFileReader(workspaceID, rootID, filename string) (filestore.Rea
 
 	return reader, nil
 }
-
-func fileExists(path string) bool {
-	_, err := os.Stat(path)
-	return !os.IsNotExist(err)
-}

server/app/helper_test.go

@@ -24,7 +24,6 @@ type TestHelper struct {
 }
 
 func SetupTestHelper(t *testing.T) *TestHelper {
-
 	ctrl := gomock.NewController(t)
 	defer ctrl.Finish()
 	cfg := config.Configuration{}

server/app/sharing.go

@@ -2,6 +2,7 @@ package app
 
 import (
 	"database/sql"
+	"errors"
 
 	"github.com/mattermost/focalboard/server/model"
 	"github.com/mattermost/focalboard/server/services/store"
@@ -9,7 +10,7 @@ import (
 
 func (a *App) GetSharing(c store.Container, rootID string) (*model.Sharing, error) {
 	sharing, err := a.store.GetSharing(c, rootID)
-	if err == sql.ErrNoRows {
+	if errors.Is(err, sql.ErrNoRows) {
 		return nil, nil
 	}
 	if err != nil {

server/app/sharing_test.go

@@ -19,7 +19,7 @@ func TestGetSharing(t *testing.T) {
 		WorkspaceID: utils.CreateGUID(),
 	}
 
-	t.Run("should get a sharing sucessfully", func(t *testing.T) {
+	t.Run("should get a sharing successfully", func(t *testing.T) {
 		want := &model.Sharing{
 			ID:         utils.CreateGUID(),
 			Enabled:    true,

server/app/workspaces.go

@@ -2,6 +2,7 @@ package app
 
 import (
 	"database/sql"
+	"errors"
 
 	"github.com/mattermost/focalboard/server/model"
 	"github.com/mattermost/focalboard/server/services/mlog"
@@ -33,9 +34,9 @@ func (a *App) GetRootWorkspace() (*model.Workspace, error) {
 	return workspace, nil
 }
 
-func (a *App) GetWorkspace(ID string) (*model.Workspace, error) {
-	workspace, err := a.store.GetWorkspace(ID)
-	if err == sql.ErrNoRows {
+func (a *App) GetWorkspace(id string) (*model.Workspace, error) {
+	workspace, err := a.store.GetWorkspace(id)
+	if errors.Is(err, sql.ErrNoRows) {
 		return nil, nil
 	}
 	if err != nil {

server/auth/auth.go

@@ -10,18 +10,18 @@ import (
 	"github.com/pkg/errors"
 )
 
-// Auth authenticates sessions
+// Auth authenticates sessions.
 type Auth struct {
 	config *config.Configuration
 	store  store.Store
 }
 
-// New returns a new Auth
+// New returns a new Auth.
 func New(config *config.Configuration, store store.Store) *Auth {
 	return &Auth{config: config, store: store}
 }
 
-// GetSession Get a user active session and refresh the session if is needed
+// GetSession Get a user active session and refresh the session if needed.
 func (a *Auth) GetSession(token string) (*model.Session, error) {
 	if len(token) < 1 {
 		return nil, errors.New("no session token")
@@ -32,12 +32,12 @@ func (a *Auth) GetSession(token string) (*model.Session, error) {
 		return nil, errors.Wrap(err, "unable to get the session for the token")
 	}
 	if session.UpdateAt < (time.Now().Unix() - a.config.SessionRefreshTime) {
-		a.store.RefreshSession(session)
+		_ = a.store.RefreshSession(session)
 	}
 	return session, nil
 }
 
-// IsValidReadToken validates the read token for a block
+// IsValidReadToken validates the read token for a block.
 func (a *Auth) IsValidReadToken(c store.Container, blockID string, readToken string) (bool, error) {
 	rootID, err := a.store.GetRootID(c, blockID)
 	if err != nil {
@@ -45,7 +45,7 @@ func (a *Auth) IsValidReadToken(c store.Container, blockID string, readToken str
 	}
 
 	sharing, err := a.store.GetSharing(c, rootID)
-	if err == sql.ErrNoRows {
+	if errors.Is(err, sql.ErrNoRows) {
 		return false, nil
 	}
 	if err != nil {

server/auth/auth_test.go

@@ -41,11 +41,9 @@ func setupTestHelper(t *testing.T) *TestHelper {
 		Session: *mockSession,
 		Store:   mockStore,
 	}
-
 }
 
 func TestGetSession(t *testing.T) {
-
 	th := setupTestHelper(t)
 
 	testcases := []struct {

server/client/client.go

@@ -13,7 +13,7 @@ import (
 )
 
 const (
-	API_URL_SUFFIX = "/api/v1"
+	APIURLSuffix = "/api/v1"
 )
 
 type Response struct {
@@ -57,10 +57,10 @@ func toJSON(v interface{}) string {
 }
 
 type Client struct {
-	Url        string
-	ApiUrl     string
-	HttpClient *http.Client
-	HttpHeader map[string]string
+	URL        string
+	APIURL     string
+	HTTPClient *http.Client
+	HTTPHeader map[string]string
 }
 
 func NewClient(url, sessionToken string) *Client {
@@ -69,63 +69,63 @@ func NewClient(url, sessionToken string) *Client {
 		"X-Requested-With": "XMLHttpRequest",
 		"Authorization":    "Bearer " + sessionToken,
 	}
-	return &Client{url, url + API_URL_SUFFIX, &http.Client{}, headers}
+	return &Client{url, url + APIURLSuffix, &http.Client{}, headers}
 }
 
-func (c *Client) DoApiGet(url, etag string) (*http.Response, error) {
-	return c.DoApiRequest(http.MethodGet, c.ApiUrl+url, "", etag)
+func (c *Client) DoAPIGet(url, etag string) (*http.Response, error) {
+	return c.DoAPIRequest(http.MethodGet, c.APIURL+url, "", etag)
 }
 
-func (c *Client) DoApiPost(url, data string) (*http.Response, error) {
-	return c.DoApiRequest(http.MethodPost, c.ApiUrl+url, data, "")
+func (c *Client) DoAPIPost(url, data string) (*http.Response, error) {
+	return c.DoAPIRequest(http.MethodPost, c.APIURL+url, data, "")
 }
 
-func (c *Client) doApiPostBytes(url string, data []byte) (*http.Response, error) {
-	return c.doApiRequestBytes(http.MethodPost, c.ApiUrl+url, data, "")
+func (c *Client) doAPIPostBytes(url string, data []byte) (*http.Response, error) {
+	return c.doAPIRequestBytes(http.MethodPost, c.APIURL+url, data, "")
 }
 
-func (c *Client) DoApiPut(url, data string) (*http.Response, error) {
-	return c.DoApiRequest(http.MethodPut, c.ApiUrl+url, data, "")
+func (c *Client) DoAPIPut(url, data string) (*http.Response, error) {
+	return c.DoAPIRequest(http.MethodPut, c.APIURL+url, data, "")
 }
 
-func (c *Client) doApiPutBytes(url string, data []byte) (*http.Response, error) {
-	return c.doApiRequestBytes(http.MethodPut, c.ApiUrl+url, data, "")
+func (c *Client) doAPIPutBytes(url string, data []byte) (*http.Response, error) {
+	return c.doAPIRequestBytes(http.MethodPut, c.APIURL+url, data, "")
 }
 
-func (c *Client) DoApiDelete(url string) (*http.Response, error) {
-	return c.DoApiRequest(http.MethodDelete, c.ApiUrl+url, "", "")
+func (c *Client) DoAPIDelete(url string) (*http.Response, error) {
+	return c.DoAPIRequest(http.MethodDelete, c.APIURL+url, "", "")
 }
 
-func (c *Client) DoApiRequest(method, url, data, etag string) (*http.Response, error) {
-	return c.doApiRequestReader(method, url, strings.NewReader(data), etag)
+func (c *Client) DoAPIRequest(method, url, data, etag string) (*http.Response, error) {
+	return c.doAPIRequestReader(method, url, strings.NewReader(data), etag)
 }
 
-func (c *Client) doApiRequestBytes(method, url string, data []byte, etag string) (*http.Response, error) {
-	return c.doApiRequestReader(method, url, bytes.NewReader(data), etag)
+func (c *Client) doAPIRequestBytes(method, url string, data []byte, etag string) (*http.Response, error) {
+	return c.doAPIRequestReader(method, url, bytes.NewReader(data), etag)
 }
 
-func (c *Client) doApiRequestReader(method, url string, data io.Reader, etag string) (*http.Response, error) {
+func (c *Client) doAPIRequestReader(method, url string, data io.Reader, _ /* etag */ string) (*http.Response, error) {
 	rq, err := http.NewRequest(method, url, data)
 	if err != nil {
 		return nil, err
 	}
 
-	if c.HttpHeader != nil && len(c.HttpHeader) > 0 {
-		for k, v := range c.HttpHeader {
+	if c.HTTPHeader != nil && len(c.HTTPHeader) > 0 {
+		for k, v := range c.HTTPHeader {
 			rq.Header.Set(k, v)
 		}
 	}
 
-	rp, err := c.HttpClient.Do(rq)
+	rp, err := c.HTTPClient.Do(rq)
 	if err != nil || rp == nil {
 		return nil, err
 	}
 
-	if rp.StatusCode == 304 {
+	if rp.StatusCode == http.StatusNotModified {
 		return rp, nil
 	}
 
-	if rp.StatusCode >= 300 {
+	if rp.StatusCode >= http.StatusMultipleChoices {
 		defer closeBody(rp)
 		b, err := ioutil.ReadAll(rp.Body)
 		if err != nil {
@@ -150,7 +150,7 @@ func (c *Client) GetSubtreeRoute(id string) string {
 }
 
 func (c *Client) GetBlocks() ([]model.Block, *Response) {
-	r, err := c.DoApiGet(c.GetBlocksRoute(), "")
+	r, err := c.DoAPIGet(c.GetBlocksRoute(), "")
 	if err != nil {
 		return nil, BuildErrorResponse(r, err)
 	}
@@ -160,7 +160,7 @@ func (c *Client) GetBlocks() ([]model.Block, *Response) {
 }
 
 func (c *Client) InsertBlocks(blocks []model.Block) (bool, *Response) {
-	r, err := c.DoApiPost(c.GetBlocksRoute(), toJSON(blocks))
+	r, err := c.DoAPIPost(c.GetBlocksRoute(), toJSON(blocks))
 	if err != nil {
 		return false, BuildErrorResponse(r, err)
 	}
@@ -170,7 +170,7 @@ func (c *Client) InsertBlocks(blocks []model.Block) (bool, *Response) {
 }
 
 func (c *Client) DeleteBlock(blockID string) (bool, *Response) {
-	r, err := c.DoApiDelete(c.GetBlockRoute(blockID))
+	r, err := c.DoAPIDelete(c.GetBlockRoute(blockID))
 	if err != nil {
 		return false, BuildErrorResponse(r, err)
 	}
@@ -180,7 +180,7 @@ func (c *Client) DeleteBlock(blockID string) (bool, *Response) {
 }
 
 func (c *Client) GetSubtree(blockID string) ([]model.Block, *Response) {
-	r, err := c.DoApiGet(c.GetSubtreeRoute(blockID), "")
+	r, err := c.DoAPIGet(c.GetSubtreeRoute(blockID), "")
 	if err != nil {
 		return nil, BuildErrorResponse(r, err)
 	}
@@ -196,7 +196,7 @@ func (c *Client) GetSharingRoute(rootID string) string {
 }
 
 func (c *Client) GetSharing(rootID string) (*model.Sharing, *Response) {
-	r, err := c.DoApiGet(c.GetSharingRoute(rootID), "")
+	r, err := c.DoAPIGet(c.GetSharingRoute(rootID), "")
 	if err != nil {
 		return nil, BuildErrorResponse(r, err)
 	}
@@ -207,7 +207,7 @@ func (c *Client) GetSharing(rootID string) (*model.Sharing, *Response) {
 }
 
 func (c *Client) PostSharing(sharing model.Sharing) (bool, *Response) {
-	r, err := c.DoApiPost(c.GetSharingRoute(sharing.ID), toJSON(sharing))
+	r, err := c.DoAPIPost(c.GetSharingRoute(sharing.ID), toJSON(sharing))
 	if err != nil {
 		return false, BuildErrorResponse(r, err)
 	}

server/context/context.go

@@ -12,12 +12,12 @@ type contextKey struct {
 
 var connContextKey = &contextKey{"http-conn"}
 
-// SetContextConn stores the connection in the request context
+// SetContextConn stores the connection in the request context.
 func SetContextConn(ctx context.Context, c net.Conn) context.Context {
 	return context.WithValue(ctx, connContextKey, c)
 }
 
-// GetContextConn gets the stored connection from the request context
+// GetContextConn gets the stored connection from the request context.
 func GetContextConn(r *http.Request) net.Conn {
 	value := r.Context().Value(connContextKey)
 	if value == nil {

server/integrationtests/clienttestlib.go

@@ -66,7 +66,9 @@ func SetupTestHelper() *TestHelper {
 	sessionToken := "TESTTOKEN"
 	th := &TestHelper{}
 	logger := mlog.NewLogger()
-	logger.Configure("", getTestConfig().LoggingCfgJSON)
+	if err := logger.Configure("", getTestConfig().LoggingCfgJSON); err != nil {
+		panic(err)
+	}
 	srv, err := server.New(getTestConfig(), sessionToken, logger)
 	if err != nil {
 		panic(err)
@@ -111,7 +113,7 @@ func (th *TestHelper) InitBasic() *TestHelper {
 }
 
 func (th *TestHelper) TearDown() {
-	defer th.Server.Logger().Shutdown()
+	defer func() { _ = th.Server.Logger().Shutdown() }()
 
 	err := th.Server.Shutdown()
 	if err != nil {

server/main/main.go

@@ -105,7 +105,7 @@ func main() {
 		log.Fatal("Error in config file for logger: ", err)
 		return
 	}
-	defer logger.Shutdown()
+	defer func() { _ = logger.Shutdown() }()
 
 	if logger.HasTargets() {
 		restore := logger.RedirectStdLog(mlog.Info, mlog.String("src", "stdlog"))
@@ -176,7 +176,7 @@ func main() {
 	// Waiting for SIGINT (pkill -2)
 	<-stop
 
-	server.Shutdown()
+	_ = server.Shutdown()
 }
 
 // StartServer starts the server
@@ -254,7 +254,7 @@ func stopServer() {
 	if err != nil {
 		pServer.Logger().Error("server.Shutdown ERROR", mlog.Err(err))
 	}
-	pServer.Logger().Shutdown()
+	_ = pServer.Logger().Shutdown()
 	pServer = nil
 }
 

server/model/block.go

@@ -53,7 +53,7 @@ type Block struct {
 	DeleteAt int64 `json:"deleteAt"`
 }
 
-// Archive is an import / export archive
+// Archive is an import / export archive.
 type Archive struct {
 	Version int64   `json:"version"`
 	Date    int64   `json:"date"`
@@ -62,7 +62,7 @@ type Archive struct {
 
 func BlocksFromJSON(data io.Reader) []Block {
 	var blocks []Block
-	json.NewDecoder(data).Decode(&blocks)
+	_ = json.NewDecoder(data).Decode(&blocks)
 	return blocks
 }
 

server/model/sharing.go

@@ -31,6 +31,6 @@ type Sharing struct {
 
 func SharingFromJSON(data io.Reader) Sharing {
 	var sharing Sharing
-	json.NewDecoder(data).Decode(&sharing)
+	_ = json.NewDecoder(data).Decode(&sharing)
 	return sharing
 }

server/server/initHandlers.go

@@ -2,5 +2,5 @@ package server
 
 func (s *Server) initHandlers() {
 	cfg := s.config
-	s.api.MattermostAuth = cfg.AuthMode == "mattermost"
+	s.api.MattermostAuth = cfg.AuthMode == MattermostAuthMod
 }

server/server/server.go

@@ -1,7 +1,7 @@
 package server
 
 import (
-	"log"
+	"fmt"
 	"net"
 	"net/http"
 	"os"
@@ -43,6 +43,8 @@ const (
 
 	//nolint:gomnd
 	minSessionExpiryTime = int64(60 * 60 * 24 * 31) // 31 days
+
+	MattermostAuthMod = "mattermost"
 )
 
 type Server struct {
@@ -72,18 +74,18 @@ func New(cfg *config.Configuration, singleUserToken string, logger *mlog.Logger)
 		logger.Error("Unable to start the database", mlog.Err(err))
 		return nil, err
 	}
-	if cfg.AuthMode == "mattermost" {
-		layeredStore, err := mattermostauthlayer.New(cfg.DBType, cfg.DBConfigString, db)
-		if err != nil {
-			log.Print("Unable to start the database", err)
-			return nil, err
+	if cfg.AuthMode == MattermostAuthMod {
+		layeredStore, err2 := mattermostauthlayer.New(cfg.DBType, cfg.DBConfigString, db)
+		if err2 != nil {
+			logger.Error("Unable to start the database", mlog.Err(err2))
+			return nil, err2
 		}
 		db = layeredStore
 	}
 
 	authenticator := auth.New(cfg, db)
 
-	wsServer := ws.NewServer(authenticator, singleUserToken, cfg.AuthMode == "mattermost", logger)
+	wsServer := ws.NewServer(authenticator, singleUserToken, cfg.AuthMode == MattermostAuthMod, logger)
 
 	filesBackendSettings := filestore.FileBackendSettings{}
 	filesBackendSettings.DriverName = cfg.FilesDriver
@@ -119,8 +121,8 @@ func New(cfg *config.Configuration, singleUserToken string, logger *mlog.Logger)
 
 	// Init audit
 	auditService := audit.NewAudit()
-	if err := auditService.Configure(cfg.AuditCfgFile, cfg.AuditCfgJSON); err != nil {
-		return nil, errors.New("unable to initialize the audit service")
+	if err2 := auditService.Configure(cfg.AuditCfgFile, cfg.AuditCfgJSON); err2 != nil {
+		return nil, fmt.Errorf("unable to initialize the audit service: %w", err2)
 	}
 
 	appServices := app.Services{
@@ -250,7 +252,7 @@ func (s *Server) Start() error {
 			}
 			return nil
 		}, func(error) {
-			s.metricsServer.Shutdown()
+			_ = s.metricsServer.Shutdown()
 		})
 
 		if err := group.Run(); err != nil {

server/services/audit/audit.go

@@ -33,7 +33,7 @@ type Audit struct {
 	auditLogger *mlog.Logger
 }
 
-// NewAudit creates a new Audit instance which can be configured via `(*Audit).Configure`
+// NewAudit creates a new Audit instance which can be configured via `(*Audit).Configure`.
 func NewAudit(options ...mlog.Option) *Audit {
 	logger := mlog.NewLogger(options...)
 

server/services/auth/email.go

@@ -2,6 +2,7 @@ package auth
 
 import "regexp"
 
+//nolint:lll
 var emailRegex = regexp.MustCompile("^[a-zA-Z0-9.!#$%&'*+/=?^_`{|}~-]+@[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?(?:\\.[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?)*$")
 
 // IsEmailValid checks if the email provided passes the required structure and length.

server/services/auth/password.go

@@ -9,7 +9,7 @@ import (
 
 const (
 	PasswordMaximumLength    = 64
-	PasswordSpecialChars     = "!\"\\#$%&'()*+,-./:;<=>?@[]^_`|~"
+	PasswordSpecialChars     = "!\"\\#$%&'()*+,-./:;<=>?@[]^_`|~" //nolint:gosec
 	PasswordNumbers          = "0123456789"
 	PasswordUpperCaseLetters = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
 	PasswordLowerCaseLetters = "abcdefghijklmnopqrstuvwxyz"
@@ -23,7 +23,7 @@ const (
 	InvalidSymbolPassword    = "symbol"
 )
 
-// HashPassword generates a hash using the bcrypt.GenerateFromPassword
+// HashPassword generates a hash using the bcrypt.GenerateFromPassword.
 func HashPassword(password string) string {
 	hash, err := bcrypt.GenerateFromPassword([]byte(password), 10)
 	if err != nil {
@@ -33,7 +33,7 @@ func HashPassword(password string) string {
 	return string(hash)
 }
 
-// ComparePassword compares the hash
+// ComparePassword compares the hash.
 func ComparePassword(hash, password string) bool {
 	if len(password) == 0 || len(hash) == 0 {
 		return false
@@ -48,7 +48,7 @@ type InvalidPasswordError struct {
 }
 
 func (ipe *InvalidPasswordError) Error() string {
-	return fmt.Sprintf("invalid password, failing criterias: %s", strings.Join(ipe.FailingCriterias, ", "))
+	return fmt.Sprintf("invalid password, failing criteria: %s", strings.Join(ipe.FailingCriterias, ", "))
 }
 
 type PasswordSettings struct {

server/services/auth/request_parser.go

@@ -9,10 +9,10 @@ import (
 )
 
 const (
-	HEADER_TOKEN         = "token"
-	HEADER_AUTH          = "Authorization"
-	HEADER_BEARER        = "BEARER"
-	SESSION_COOKIE_TOKEN = "FOCALBOARDAUTHTOKEN"
+	HeaderToken        = "token"
+	HeaderAuth         = "Authorization"
+	HeaderBearer       = "BEARER"
+	SessionCookieToken = "FOCALBOARDAUTHTOKEN"
 )
 
 type TokenLocation int
@@ -40,20 +40,20 @@ func (tl TokenLocation) String() string {
 }
 
 func ParseAuthTokenFromRequest(r *http.Request) (string, TokenLocation) {
-	authHeader := r.Header.Get(HEADER_AUTH)
+	authHeader := r.Header.Get(HeaderAuth)
 
 	// Attempt to parse the token from the cookie
-	if cookie, err := r.Cookie(SESSION_COOKIE_TOKEN); err == nil {
+	if cookie, err := r.Cookie(SessionCookieToken); err == nil {
 		return cookie.Value, TokenLocationCookie
 	}
 
 	// Parse the token from the header
-	if len(authHeader) > 6 && strings.ToUpper(authHeader[0:6]) == HEADER_BEARER {
+	if len(authHeader) > 6 && strings.ToUpper(authHeader[0:6]) == HeaderBearer {
 		// Default session token
 		return authHeader[7:], TokenLocationHeader
 	}
 
-	if len(authHeader) > 5 && strings.ToLower(authHeader[0:5]) == HEADER_TOKEN {
+	if len(authHeader) > 5 && strings.ToLower(authHeader[0:5]) == HeaderToken {
 		// OAuth token
 		return authHeader[6:], TokenLocationHeader
 	}

server/services/auth/request_parser_test.go

@@ -31,7 +31,7 @@ func TestParseAuthTokenFromRequest(t *testing.T) {
 		}
 		req := httptest.NewRequest("GET", pathname, nil)
 		if tc.header != "" {
-			req.Header.Add(HEADER_AUTH, tc.header)
+			req.Header.Add(HeaderAuth, tc.header)
 		}
 		if tc.cookie != "" {
 			req.AddCookie(&http.Cookie{

server/services/metrics/metrics.go

@@ -22,7 +22,7 @@ type InstanceInfo struct {
 	InstallationID string
 }
 
-// Metrics used to instrumentate metrics in prometheus
+// Metrics used to instrumentate metrics in prometheus.
 type Metrics struct {
 	registry *prometheus.Registry
 
@@ -41,7 +41,7 @@ type Metrics struct {
 	blockLastActivity prometheus.Gauge
 }
 
-// NewMetrics Factory method to create a new metrics collector
+// NewMetrics Factory method to create a new metrics collector.
 func NewMetrics(info InstanceInfo) *Metrics {
 	m := &Metrics{}
 

server/services/metrics/service.go

@@ -8,12 +8,12 @@ import (
 	"github.com/prometheus/client_golang/prometheus/promhttp"
 )
 
-// Service prometheus to run the server
+// Service prometheus to run the server.
 type Service struct {
 	*http.Server
 }
 
-// NewMetricsServer factory method to create a new prometheus server
+// NewMetricsServer factory method to create a new prometheus server.
 func NewMetricsServer(address string, metricsService *Metrics, logger *mlog.Logger) *Service {
 	return &Service{
 		&http.Server{
@@ -25,12 +25,12 @@ func NewMetricsServer(address string, metricsService *Metrics, logger *mlog.Logg
 	}
 }
 
-// Run will start the prometheus server
+// Run will start the prometheus server.
 func (h *Service) Run() error {
 	return errors.Wrap(h.Server.ListenAndServe(), "prometheus ListenAndServe")
 }
 
-// Shutdown will shutdown the prometheus server
+// Shutdown will shutdown the prometheus server.
 func (h *Service) Shutdown() error {
 	return errors.Wrap(h.Server.Close(), "prometheus Close")
 }

server/services/mlog/levels.go

@@ -1,11 +1,12 @@
 // Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
 // See LICENSE.txt for license information.
 
+//nolint:gomnd
 package mlog
 
 import "github.com/mattermost/logr/v2"
 
-// Standard levels
+// Standard levels.
 var (
 	Panic  = logr.Panic // ID = 0
 	Fatal  = logr.Fatal // ID = 1
@@ -33,7 +34,7 @@ var (
 	Metrics   = Level{ID: 501, Name: "metrics"}
 )
 
-// Combinations for LogM (log multi)
+// Combinations for LogM (log multi).
 var (
 /* Example
 MAuditAll = []Level{AuditAPI, AuditContent, AuditPerms, AuditCLI}

server/services/mlog/mlog.go

@@ -106,7 +106,7 @@ type Logger struct {
 	log *logr.Logger
 }
 
-// NewLogger creates a new Logger instance which can be configured via `(*Logger).Configure`
+// NewLogger creates a new Logger instance which can be configured via `(*Logger).Configure`.
 func NewLogger(options ...Option) *Logger {
 	lgr, _ := logr.New(options...)
 	log := lgr.NewLogger()
@@ -129,15 +129,16 @@ func (l *Logger) Configure(cfgFile string, cfgEscaped string) error {
 
 	// Add config from file
 	if cfgFile != "" {
-		if b, err := ioutil.ReadFile(string(cfgFile)); err != nil {
+		b, err := ioutil.ReadFile(cfgFile)
+		if err != nil {
 			return fmt.Errorf("error reading logger config file %s: %w", cfgFile, err)
-		} else {
-			var mapCfgFile LoggerConfig
-			if err := json.Unmarshal(b, &mapCfgFile); err != nil {
-				return fmt.Errorf("error decoding logger config file %s: %w", cfgFile, err)
-			}
-			cfgMap.append(mapCfgFile)
 		}
+
+		var mapCfgFile LoggerConfig
+		if err := json.Unmarshal(b, &mapCfgFile); err != nil {
+			return fmt.Errorf("error decoding logger config file %s: %w", cfgFile, err)
+		}
+		cfgMap.append(mapCfgFile)
 	}
 
 	// Add config from escaped json string
@@ -172,7 +173,7 @@ func (l *Logger) With(fields ...Field) *Logger {
 // Note, transformations and serializations done via fields are already
 // lazily evaluated and don't require this check beforehand.
 func (l *Logger) IsLevelEnabled(level Level) bool {
-	return l.IsLevelEnabled(level)
+	return l.log.IsLevelEnabled(level)
 }
 
 // Log emits the log record for any targets configured for the specified level.
@@ -215,7 +216,7 @@ func (l *Logger) Error(msg string, fields ...Field) {
 // followed by `os.Exit(1)`.
 func (l *Logger) Fatal(msg string, fields ...Field) {
 	l.log.Log(logr.Fatal, msg, fields...)
-	l.Shutdown()
+	_ = l.Shutdown()
 	os.Exit(1)
 }
 

server/services/mlog/tlog.go

@@ -8,7 +8,7 @@ import (
 	"github.com/mattermost/logr/v2/formatters"
 )
 
-// CreateTestLogger creates a logger for unit tests. Log records are output to `(*testing.T)Log`
+// CreateTestLogger creates a logger for unit tests. Log records are output to `(*testing.T)Log`.
 func CreateTestLogger(t *testing.T, levels ...Field) (logger *Logger) {
 	logger = NewLogger()
 
@@ -16,7 +16,10 @@ func CreateTestLogger(t *testing.T, levels ...Field) (logger *Logger) {
 	formatter := &formatters.Plain{}
 	target := newTestingTarget(t)
 
-	logger.log.Logr().AddTarget(target, "test", filter, formatter, 1000)
+	if err := logger.log.Logr().AddTarget(target, "test", filter, formatter, 1000); err != nil {
+		t.Fail()
+		return nil
+	}
 	return logger
 }
 

server/services/store/mattermostauthlayer/mattermostauthlayer.go

@@ -15,7 +15,6 @@ import (
 )
 
 const (
-	mysqlDBType    = "mysql"
 	sqliteDBType   = "sqlite3"
 	postgresDBType = "postgres"
 )
@@ -56,12 +55,12 @@ func New(dbType, connectionString string, store store.Store) (*MattermostAuthLay
 }
 
 // Shutdown close the connection with the store.
-func (l *MattermostAuthLayer) Shutdown() error {
-	err := l.Store.Shutdown()
+func (s *MattermostAuthLayer) Shutdown() error {
+	err := s.Store.Shutdown()
 	if err != nil {
 		return err
 	}
-	return l.mmDB.Close()
+	return s.mmDB.Close()
 }
 
 func (s *MattermostAuthLayer) GetRegisteredUserCount() (int, error) {
@@ -82,7 +81,8 @@ func (s *MattermostAuthLayer) GetRegisteredUserCount() (int, error) {
 
 func (s *MattermostAuthLayer) getUserByCondition(condition sq.Eq) (*model.User, error) {
 	query := s.getQueryBuilder().
-		Select("id", "username", "email", "password", "MFASecret as mfa_secret", "AuthService as auth_service", "COALESCE(AuthData, '') as auth_data", "props", "CreateAt as create_at", "UpdateAt as update_at", "DeleteAt as delete_at").
+		Select("id", "username", "email", "password", "MFASecret as mfa_secret", "AuthService as auth_service", "COALESCE(AuthData, '') as auth_data",
+			"props", "CreateAt as create_at", "UpdateAt as update_at", "DeleteAt as delete_at").
 		From("Users").
 		Where(sq.Eq{"deleteAt": 0}).
 		Where(condition)
@@ -90,7 +90,8 @@ func (s *MattermostAuthLayer) getUserByCondition(condition sq.Eq) (*model.User,
 	user := model.User{}
 
 	var propsBytes []byte
-	err := row.Scan(&user.ID, &user.Username, &user.Email, &user.Password, &user.MfaSecret, &user.AuthService, &user.AuthData, &propsBytes, &user.CreateAt, &user.UpdateAt, &user.DeleteAt)
+	err := row.Scan(&user.ID, &user.Username, &user.Email, &user.Password, &user.MfaSecret, &user.AuthService,
+		&user.AuthData, &propsBytes, &user.CreateAt, &user.UpdateAt, &user.DeleteAt)
 	if err != nil {
 		return nil, err
 	}
@@ -103,7 +104,7 @@ func (s *MattermostAuthLayer) getUserByCondition(condition sq.Eq) (*model.User,
 	return &user, nil
 }
 
-func (s *MattermostAuthLayer) GetUserById(userID string) (*model.User, error) {
+func (s *MattermostAuthLayer) GetUserByID(userID string) (*model.User, error) {
 	return s.getUserByCondition(sq.Eq{"id": userID})
 }
 
@@ -131,7 +132,7 @@ func (s *MattermostAuthLayer) UpdateUserPasswordByID(userID, password string) er
 	return errors.New("no update allowed from focalboard, update it using mattermost")
 }
 
-// GetActiveUserCount returns the number of users with active sessions within N seconds ago
+// GetActiveUserCount returns the number of users with active sessions within N seconds ago.
 func (s *MattermostAuthLayer) GetActiveUserCount(updatedSecondsAgo int64) (int, error) {
 	query := s.getQueryBuilder().
 		Select("count(distinct userId)").
@@ -165,7 +166,7 @@ func (s *MattermostAuthLayer) UpdateSession(session *model.Session) error {
 	return errors.New("no update allowed from focalboard, update it using mattermost")
 }
 
-func (s *MattermostAuthLayer) DeleteSession(sessionId string) error {
+func (s *MattermostAuthLayer) DeleteSession(sessionID string) error {
 	return errors.New("no update allowed from focalboard, update it using mattermost")
 }
 
@@ -173,10 +174,10 @@ func (s *MattermostAuthLayer) CleanUpSessions(expireTime int64) error {
 	return errors.New("no update allowed from focalboard, update it using mattermost")
 }
 
-func (s *MattermostAuthLayer) GetWorkspace(ID string) (*model.Workspace, error) {
-	if ID == "0" {
+func (s *MattermostAuthLayer) GetWorkspace(id string) (*model.Workspace, error) {
+	if id == "0" {
 		workspace := model.Workspace{
-			ID:    ID,
+			ID:    id,
 			Title: "",
 		}
 
@@ -186,7 +187,7 @@ func (s *MattermostAuthLayer) GetWorkspace(ID string) (*model.Workspace, error)
 	query := s.getQueryBuilder().
 		Select("DisplayName, Type").
 		From("Channels").
-		Where(sq.Eq{"ID": ID})
+		Where(sq.Eq{"ID": id})
 
 	row := query.QueryRow()
 	var displayName string
@@ -197,14 +198,14 @@ func (s *MattermostAuthLayer) GetWorkspace(ID string) (*model.Workspace, error)
 	}
 
 	if channelType != "D" && channelType != "G" {
-		return &model.Workspace{ID: ID, Title: displayName}, nil
+		return &model.Workspace{ID: id, Title: displayName}, nil
 	}
 
 	query = s.getQueryBuilder().
 		Select("Username").
 		From("ChannelMembers").
 		Join("Users ON Users.ID=ChannelMembers.UserID").
-		Where(sq.Eq{"ChannelID": ID})
+		Where(sq.Eq{"ChannelID": id})
 
 	var sb strings.Builder
 	rows, err := query.Query()
@@ -223,7 +224,7 @@ func (s *MattermostAuthLayer) GetWorkspace(ID string) (*model.Workspace, error)
 		}
 		sb.WriteString(name)
 	}
-	return &model.Workspace{ID: ID, Title: sb.String()}, nil
+	return &model.Workspace{ID: id, Title: sb.String()}, nil
 }
 
 func (s *MattermostAuthLayer) HasWorkspaceAccess(userID string, workspaceID string) (bool, error) {
@@ -255,7 +256,8 @@ func (s *MattermostAuthLayer) getQueryBuilder() sq.StatementBuilderType {
 
 func (s *MattermostAuthLayer) GetUsersByWorkspace(workspaceID string) ([]*model.User, error) {
 	query := s.getQueryBuilder().
-		Select("id", "username", "email", "password", "MFASecret as mfa_secret", "AuthService as auth_service", "COALESCE(AuthData, '') as auth_data", "props", "CreateAt as create_at", "UpdateAt as update_at", "DeleteAt as delete_at").
+		Select("id", "username", "email", "password", "MFASecret as mfa_secret", "AuthService as auth_service", "COALESCE(AuthData, '') as auth_data",
+			"props", "CreateAt as create_at", "UpdateAt as update_at", "DeleteAt as delete_at").
 		From("Users").
 		Join("ChannelMembers ON ChannelMembers.UserID = Users.ID").
 		Where(sq.Eq{"deleteAt": 0}).

server/services/store/mockstore/mockstore.go

@@ -345,19 +345,19 @@ func (mr *MockStoreMockRecorder) GetUserByEmail(email interface{}) *gomock.Call
 	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "GetUserByEmail", reflect.TypeOf((*MockStore)(nil).GetUserByEmail), email)
 }
 
-// GetUserById mocks base method.
-func (m *MockStore) GetUserById(userID string) (*model.User, error) {
+// GetUserByID mocks base method.
+func (m *MockStore) GetUserByID(userID string) (*model.User, error) {
 	m.ctrl.T.Helper()
-	ret := m.ctrl.Call(m, "GetUserById", userID)
+	ret := m.ctrl.Call(m, "GetUserByID", userID)
 	ret0, _ := ret[0].(*model.User)
 	ret1, _ := ret[1].(error)
 	return ret0, ret1
 }
 
-// GetUserById indicates an expected call of GetUserById.
-func (mr *MockStoreMockRecorder) GetUserById(userID interface{}) *gomock.Call {
+// GetUserByID indicates an expected call of GetUserByID.
+func (mr *MockStoreMockRecorder) GetUserByID(userID interface{}) *gomock.Call {
 	mr.mock.ctrl.T.Helper()
-	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "GetUserById", reflect.TypeOf((*MockStore)(nil).GetUserById), userID)
+	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "GetUserByID", reflect.TypeOf((*MockStore)(nil).GetUserByID), userID)
 }
 
 // GetUserByUsername mocks base method.

server/services/store/sqlstore/blocks.go

@@ -132,7 +132,7 @@ func (s *SQLStore) GetBlocksWithType(c store.Container, blockType string) ([]mod
 	return s.blocksFromRows(rows)
 }
 
-// GetSubTree2 returns blocks within 2 levels of the given blockID
+// GetSubTree2 returns blocks within 2 levels of the given blockID.
 func (s *SQLStore) GetSubTree2(c store.Container, blockID string) ([]model.Block, error) {
 	query := s.getQueryBuilder().
 		Select(
@@ -162,7 +162,7 @@ func (s *SQLStore) GetSubTree2(c store.Container, blockID string) ([]model.Block
 	return s.blocksFromRows(rows)
 }
 
-// GetSubTree3 returns blocks within 3 levels of the given blockID
+// GetSubTree3 returns blocks within 3 levels of the given blockID.
 func (s *SQLStore) GetSubTree3(c store.Container, blockID string) ([]model.Block, error) {
 	// This first subquery returns repeated blocks
 	query := s.getQueryBuilder().Select(
@@ -363,19 +363,19 @@ func (s *SQLStore) InsertBlock(c store.Container, block model.Block) error {
 		Where(sq.Eq{"COALESCE(workspace_id, '0')": c.WorkspaceID})
 	_, err = sq.ExecContextWith(ctx, tx, deleteQuery)
 	if err != nil {
-		tx.Rollback()
+		_ = tx.Rollback()
 		return err
 	}
 
 	_, err = sq.ExecContextWith(ctx, tx, query.Into(s.tablePrefix+"blocks"))
 	if err != nil {
-		tx.Rollback()
+		_ = tx.Rollback()
 		return err
 	}
 
 	_, err = sq.ExecContextWith(ctx, tx, query.Into(s.tablePrefix+"blocks_history"))
 	if err != nil {
-		tx.Rollback()
+		_ = tx.Rollback()
 		return err
 	}
 
@@ -413,7 +413,7 @@ func (s *SQLStore) DeleteBlock(c store.Container, blockID string, modifiedBy str
 
 	_, err = sq.ExecContextWith(ctx, tx, insertQuery)
 	if err != nil {
-		tx.Rollback()
+		_ = tx.Rollback()
 		return err
 	}
 
@@ -424,7 +424,7 @@ func (s *SQLStore) DeleteBlock(c store.Container, blockID string, modifiedBy str
 
 	_, err = sq.ExecContextWith(ctx, tx, deleteQuery)
 	if err != nil {
-		tx.Rollback()
+		_ = tx.Rollback()
 		return err
 	}
 

server/services/store/sqlstore/initialize.go

@@ -10,7 +10,7 @@ import (
 	"github.com/mattermost/focalboard/server/services/store/sqlstore/initializations"
 )
 
-// InitializeTemplates imports default templates if the blocks table is empty
+// InitializeTemplates imports default templates if the blocks table is empty.
 func (s *SQLStore) InitializeTemplates() error {
 	isNeeded, err := s.isInitializationNeeded()
 	if err != nil {
@@ -54,7 +54,7 @@ func (s *SQLStore) importInitialTemplates() error {
 	return nil
 }
 
-// isInitializationNeeded returns true if the blocks table is empty
+// isInitializationNeeded returns true if the blocks table is empty.
 func (s *SQLStore) isInitializationNeeded() (bool, error) {
 	query := s.getQueryBuilder().
 		Select("count(*)").

server/services/store/sqlstore/migrate.go

@@ -84,7 +84,7 @@ func appendMultipleStatementsFlag(connectionString string) (string, error) {
 
 // migrations in MySQL need to run with the multiStatements flag
 // enabled, so this method creates a new connection ensuring that it's
-// enabled
+// enabled.
 func (s *SQLStore) getMySQLMigrationConnection() (*sql.DB, error) {
 	connectionString, err := appendMultipleStatementsFlag(s.connectionString)
 	if err != nil {
@@ -123,9 +123,9 @@ func (s *SQLStore) Migrate() error {
 	}
 
 	if s.dbType == mysqlDBType {
-		db, err := s.getMySQLMigrationConnection()
-		if err != nil {
-			return err
+		db, err2 := s.getMySQLMigrationConnection()
+		if err2 != nil {
+			return err2
 		}
 		defer db.Close()
 

server/services/store/sqlstore/session.go

@@ -8,7 +8,7 @@ import (
 	"github.com/mattermost/focalboard/server/model"
 )
 
-// GetActiveUserCount returns the number of users with active sessions within N seconds ago
+// GetActiveUserCount returns the number of users with active sessions within N seconds ago.
 func (s *SQLStore) GetActiveUserCount(updatedSecondsAgo int64) (int, error) {
 	query := s.getQueryBuilder().
 		Select("count(distinct user_id)").
@@ -94,9 +94,9 @@ func (s *SQLStore) UpdateSession(session *model.Session) error {
 	return err
 }
 
-func (s *SQLStore) DeleteSession(sessionId string) error {
+func (s *SQLStore) DeleteSession(sessionID string) error {
 	query := s.getQueryBuilder().Delete(s.tablePrefix+"sessions").
-		Where("id", sessionId)
+		Where("id", sessionID)
 
 	_, err := query.Exec()
 	return err

server/services/store/sqlstore/sharing.go

@@ -29,9 +29,13 @@ func (s *SQLStore) UpsertSharing(c store.Container, sharing model.Sharing) error
 			now,
 		)
 	if s.dbType == mysqlDBType {
-		query = query.Suffix("ON DUPLICATE KEY UPDATE enabled = ?, token = ?, modified_by = ?, update_at = ?", sharing.Enabled, sharing.Token, sharing.ModifiedBy, now)
+		query = query.Suffix("ON DUPLICATE KEY UPDATE enabled = ?, token = ?, modified_by = ?, update_at = ?",
+			sharing.Enabled, sharing.Token, sharing.ModifiedBy, now)
 	} else {
-		query = query.Suffix("ON CONFLICT (id) DO UPDATE SET enabled = EXCLUDED.enabled, token = EXCLUDED.token, modified_by = EXCLUDED.modified_by, update_at = EXCLUDED.update_at")
+		query = query.Suffix(
+			`ON CONFLICT (id) 
+			 DO UPDATE SET enabled = EXCLUDED.enabled, token = EXCLUDED.token, modified_by = EXCLUDED.modified_by, update_at = EXCLUDED.update_at`,
+		)
 	}
 
 	_, err := query.Exec()

server/services/store/sqlstore/sqlstore_test.go

@@ -27,7 +27,7 @@ func SetupTests(t *testing.T) (store.Store, func()) {
 	require.Nil(t, err)
 
 	tearDown := func() {
-		defer logger.Shutdown()
+		defer func() { _ = logger.Shutdown() }()
 		err = store.Shutdown()
 		require.Nil(t, err)
 	}

server/services/store/sqlstore/user.go

@@ -77,7 +77,7 @@ func (s *SQLStore) getUsersByCondition(condition sq.Eq) ([]*model.User, error) {
 	return users, nil
 }
 
-func (s *SQLStore) GetUserById(userID string) (*model.User, error) {
+func (s *SQLStore) GetUserByID(userID string) (*model.User, error) {
 	return s.getUserByCondition(sq.Eq{"id": userID})
 }
 

server/services/store/sqlstore/workspaces.go

@@ -28,9 +28,13 @@ func (s *SQLStore) UpsertWorkspaceSignupToken(workspace model.Workspace) error {
 			now,
 		)
 	if s.dbType == mysqlDBType {
-		query = query.Suffix("ON DUPLICATE KEY UPDATE signup_token = ?, modified_by = ?, update_at = ?", workspace.SignupToken, workspace.ModifiedBy, now)
+		query = query.Suffix("ON DUPLICATE KEY UPDATE signup_token = ?, modified_by = ?, update_at = ?",
+			workspace.SignupToken, workspace.ModifiedBy, now)
 	} else {
-		query = query.Suffix("ON CONFLICT (id) DO UPDATE SET signup_token = EXCLUDED.signup_token, modified_by = EXCLUDED.modified_by, update_at = EXCLUDED.update_at")
+		query = query.Suffix(
+			`ON CONFLICT (id) 
+			 DO UPDATE SET signup_token = EXCLUDED.signup_token, modified_by = EXCLUDED.modified_by, update_at = EXCLUDED.update_at`,
+		)
 	}
 
 	_, err := query.Exec()
@@ -62,14 +66,17 @@ func (s *SQLStore) UpsertWorkspaceSettings(workspace model.Workspace) error {
 	if s.dbType == mysqlDBType {
 		query = query.Suffix("ON DUPLICATE KEY UPDATE settings = ?, modified_by = ?, update_at = ?", settingsJSON, workspace.ModifiedBy, now)
 	} else {
-		query = query.Suffix("ON CONFLICT (id) DO UPDATE SET settings = EXCLUDED.settings, modified_by = EXCLUDED.modified_by, update_at = EXCLUDED.update_at")
+		query = query.Suffix(
+			`ON CONFLICT (id) 
+			 DO UPDATE SET settings = EXCLUDED.settings, modified_by = EXCLUDED.modified_by, update_at = EXCLUDED.update_at`,
+		)
 	}
 
 	_, err = query.Exec()
 	return err
 }
 
-func (s *SQLStore) GetWorkspace(ID string) (*model.Workspace, error) {
+func (s *SQLStore) GetWorkspace(id string) (*model.Workspace, error) {
 	var settingsJSON string
 
 	query := s.getQueryBuilder().
@@ -81,7 +88,7 @@ func (s *SQLStore) GetWorkspace(ID string) (*model.Workspace, error) {
 			"update_at",
 		).
 		From(s.tablePrefix + "workspaces").
-		Where(sq.Eq{"id": ID})
+		Where(sq.Eq{"id": id})
 	row := query.QueryRow()
 	workspace := model.Workspace{}
 

server/services/store/store.go

@@ -4,7 +4,7 @@ package store
 import "github.com/mattermost/focalboard/server/model"
 
 // Conainer represents a container in a store
-// Using a struct to make extending this easier in the future
+// Using a struct to make extending this easier in the future.
 type Container struct {
 	WorkspaceID string
 }
@@ -30,7 +30,7 @@ type Store interface {
 	SetSystemSetting(key, value string) error
 
 	GetRegisteredUserCount() (int, error)
-	GetUserById(userID string) (*model.User, error)
+	GetUserByID(userID string) (*model.User, error)
 	GetUserByEmail(email string) (*model.User, error)
 	GetUserByUsername(username string) (*model.User, error)
 	CreateUser(user *model.User) error
@@ -44,7 +44,7 @@ type Store interface {
 	CreateSession(session *model.Session) error
 	RefreshSession(session *model.Session) error
 	UpdateSession(session *model.Session) error
-	DeleteSession(sessionId string) error
+	DeleteSession(sessionID string) error
 	CleanUpSessions(expireTime int64) error
 
 	UpsertSharing(c Container, sharing model.Sharing) error

server/services/store/storetests/system.go

@@ -19,7 +19,7 @@ func StoreTestSystemStore(t *testing.T, setup func(t *testing.T) (store.Store, f
 	})
 }
 
-func testSetGetSystemSettings(t *testing.T, store store.Store, container store.Container) {
+func testSetGetSystemSettings(t *testing.T, store store.Store, _ /*container*/ store.Container) {
 	t.Run("Get empty settings", func(t *testing.T) {
 		settings, err := store.GetSystemSettings()
 		require.NoError(t, err)

server/services/store/storetests/users.go

@@ -39,10 +39,12 @@ func testGetWorkspaceUsers(t *testing.T, store store.Store) {
 		})
 		require.Nil(t, err)
 
-		defer store.UpdateUser(&model.User{
-			ID:       userID,
-			DeleteAt: time.Now().Unix(),
-		})
+		defer func() {
+			_ = store.UpdateUser(&model.User{
+				ID:       userID,
+				DeleteAt: time.Now().Unix(),
+			})
+		}()
 
 		users, err = store.GetUsersByWorkspace("workspace_1")
 		require.Equal(t, 1, len(users))

server/services/telemetry/telemetry.go

@@ -79,7 +79,7 @@ func (ts *Service) sendDailyTelemetry(override bool) {
 func (ts *Service) sendTelemetry(event string, properties map[string]interface{}) {
 	if ts.rudderClient != nil {
 		var context *rudder.Context
-		ts.rudderClient.Enqueue(rudder.Track{
+		_ = ts.rudderClient.Enqueue(rudder.Track{
 			Event:      event,
 			UserId:     ts.telemetryID,
 			Properties: properties,
@@ -103,7 +103,7 @@ func (ts *Service) initRudder(endpoint, rudderKey string) {
 			ts.logger.Fatal("Failed to create Rudder instance")
 			return
 		}
-		client.Enqueue(rudder.Identify{
+		_ = client.Enqueue(rudder.Identify{
 			UserId: ts.telemetryID,
 		})
 

server/services/webhook/webhook.go

@@ -3,6 +3,7 @@ package webhook
 import (
 	"bytes"
 	"encoding/json"
+	"io/ioutil"
 	"net/http"
 
 	"github.com/mattermost/focalboard/server/model"
@@ -10,7 +11,7 @@ import (
 	"github.com/mattermost/focalboard/server/services/mlog"
 )
 
-// NotifyUpdate calls webhooks
+// NotifyUpdate calls webhooks.
 func (wh *Client) NotifyUpdate(block model.Block) {
 	if len(wh.config.WebhookUpdate) < 1 {
 		return
@@ -21,18 +22,21 @@ func (wh *Client) NotifyUpdate(block model.Block) {
 		wh.logger.Fatal("NotifyUpdate: json.Marshal", mlog.Err(err))
 	}
 	for _, url := range wh.config.WebhookUpdate {
-		http.Post(url, "application/json", bytes.NewBuffer(json))
+		resp, _ := http.Post(url, "application/json", bytes.NewBuffer(json)) //nolint:gosec
+		_, _ = ioutil.ReadAll(resp.Body)
+		resp.Body.Close()
+
 		wh.logger.Debug("webhook.NotifyUpdate", mlog.String("url", url))
 	}
 }
 
-// Client is a webhook client
+// Client is a webhook client.
 type Client struct {
 	config *config.Configuration
 	logger *mlog.Logger
 }
 
-// NewClient creates a new Client
+// NewClient creates a new Client.
 func NewClient(config *config.Configuration, logger *mlog.Logger) *Client {
 	return &Client{
 		config: config,

server/web/webserver.go

@@ -1,6 +1,7 @@
 package web
 
 import (
+	"errors"
 	"fmt"
 	"net/http"
 	"net/url"
@@ -24,12 +25,11 @@ type RoutedService interface {
 type Server struct {
 	http.Server
 
-	baseURL   string
-	rootPath  string
-	port      int
-	ssl       bool
-	localOnly bool
-	logger    *mlog.Logger
+	baseURL  string
+	rootPath string
+	port     int
+	ssl      bool
+	logger   *mlog.Logger
 }
 
 // NewServer creates a new instance of the webserver.
@@ -81,13 +81,13 @@ func (ws *Server) registerRoutes() {
 		indexTemplate, err := template.New("index").ParseFiles(path.Join(ws.rootPath, "index.html"))
 		if err != nil {
 			ws.logger.Error("Unable to serve the index.html file", mlog.Err(err))
-			w.WriteHeader(500)
+			w.WriteHeader(http.StatusInternalServerError)
 			return
 		}
 		err = indexTemplate.ExecuteTemplate(w, "index.html", map[string]string{"BaseURL": ws.baseURL})
 		if err != nil {
 			ws.logger.Error("Unable to serve the index.html file", mlog.Err(err))
-			w.WriteHeader(500)
+			w.WriteHeader(http.StatusInternalServerError)
 			return
 		}
 	})
@@ -115,7 +115,7 @@ func (ws *Server) Start() {
 
 	ws.logger.Info("http server started", mlog.Int("port", ws.port))
 	go func() {
-		if err := ws.ListenAndServe(); err != http.ErrServerClosed {
+		if err := ws.ListenAndServe(); !errors.Is(err, http.ErrServerClosed) {
 			ws.logger.Fatal("ListenAndServeTLS", mlog.Err(err))
 		}
 		ws.logger.Info("http server stopped")

server/ws/websockets.go

@@ -16,7 +16,7 @@ import (
 	"github.com/mattermost/focalboard/server/services/store"
 )
 
-// IsValidSessionToken authenticates session tokens
+// IsValidSessionToken authenticates session tokens.
 type IsValidSessionToken func(token string) bool
 
 type Hub interface {
@@ -36,20 +36,20 @@ type Server struct {
 	logger           *mlog.Logger
 }
 
-// UpdateMsg is sent on block updates
+// UpdateMsg is sent on block updates.
 type UpdateMsg struct {
 	Action string      `json:"action"`
 	Block  model.Block `json:"block"`
 }
 
-// clusterUpdateMsg is sent on block updates
+// clusterUpdateMsg is sent on block updates.
 type clusterUpdateMsg struct {
 	UpdateMsg
 	BlockID     string `json:"block_id"`
 	WorkspaceID string `json:"workspace_id"`
 }
 
-// ErrorMsg is sent on errors
+// ErrorMsg is sent on errors.
 type ErrorMsg struct {
 	Error string `json:"error"`
 }
@@ -219,7 +219,7 @@ func (ws *Server) getAuthenticatedWorkspaceID(wsSession *websocketSession, comma
 	workspaceID := command.WorkspaceID
 	if len(workspaceID) == 0 {
 		ws.logger.Error("getAuthenticatedWorkspaceID: No workspace")
-		return "", errors.New("No workspace")
+		return "", errors.New("no workspace")
 	}
 
 	container := store.Container{
@@ -231,16 +231,16 @@ func (ws *Server) getAuthenticatedWorkspaceID(wsSession *websocketSession, comma
 		for _, blockID := range command.BlockIDs {
 			isValid, _ := ws.auth.IsValidReadToken(container, blockID, command.ReadToken)
 			if !isValid {
-				return "", errors.New("Invalid read token for workspace")
+				return "", errors.New("invalid read token for workspace")
 			}
 		}
 		return workspaceID, nil
 	}
 
-	return "", errors.New("No read token")
+	return "", errors.New("no read token")
 }
 
-// TODO: Refactor workspace hashing
+// TODO: Refactor workspace hashing.
 func makeItemID(workspaceID, blockID string) string {
 	return workspaceID + "-" + blockID
 }
@@ -283,7 +283,7 @@ func (ws *Server) removeListener(client *websocket.Conn) {
 	ws.mu.Unlock()
 }
 
-// removeListenerFromBlocks removes a webSocket listener from a set of block.
+// removeListenerFromBlocks removes a webSocket listener from a set of blocks.
 func (ws *Server) removeListenerFromBlocks(wsSession *websocketSession, command *WebsocketCommand) {
 	workspaceID, err := ws.getAuthenticatedWorkspaceID(wsSession, command)
 	if err != nil {
@@ -345,15 +345,13 @@ func (ws *Server) SetHub(hub Hub) {
 			Block:  msg.Block,
 		}
 
-		if listeners != nil {
-			for _, listener := range listeners {
-				log.Printf("Broadcast change, workspaceID: %s, blockID: %s, remoteAddr: %s", msg.WorkspaceID, msg.BlockID, listener.RemoteAddr())
+		for _, listener := range listeners {
+			log.Printf("Broadcast change, workspaceID: %s, blockID: %s, remoteAddr: %s", msg.WorkspaceID, msg.BlockID, listener.RemoteAddr())
 
-				err := listener.WriteJSON(message)
-				if err != nil {
-					log.Printf("broadcast error: %v", err)
-					listener.Close()
-				}
+			err := listener.WriteJSON(message)
+			if err != nil {
+				log.Printf("broadcast error: %v", err)
+				listener.Close()
 			}
 		}
 	})
@@ -369,7 +367,7 @@ func (ws *Server) getListeners(workspaceID string, blockID string) []*websocket.
 	return listeners
 }
 
-// BroadcastBlockDelete broadcasts delete messages to clients
+// BroadcastBlockDelete broadcasts delete messages to clients.
 func (ws *Server) BroadcastBlockDelete(workspaceID, blockID, parentID string) {
 	now := time.Now().Unix()
 	block := model.Block{}
@@ -381,7 +379,7 @@ func (ws *Server) BroadcastBlockDelete(workspaceID, blockID, parentID string) {
 	ws.BroadcastBlockChange(workspaceID, block)
 }
 
-// BroadcastBlockChange broadcasts update messages to clients
+// BroadcastBlockChange broadcasts update messages to clients.
 func (ws *Server) BroadcastBlockChange(workspaceID string, block model.Block) {
 	blockIDsToNotify := []string{block.ID, block.ParentID}
 
@@ -404,19 +402,17 @@ func (ws *Server) BroadcastBlockChange(workspaceID string, block model.Block) {
 			ws.hub.SendWSMessage(data)
 		}
 
-		if listeners != nil {
-			for _, listener := range listeners {
-				ws.logger.Debug("Broadcast change",
-					mlog.String("workspaceID", workspaceID),
-					mlog.String("blockID", blockID),
-					mlog.Stringer("remoteAddr", listener.RemoteAddr()),
-				)
+		for _, listener := range listeners {
+			ws.logger.Debug("Broadcast change",
+				mlog.String("workspaceID", workspaceID),
+				mlog.String("blockID", blockID),
+				mlog.Stringer("remoteAddr", listener.RemoteAddr()),
+			)
 
-				err := listener.WriteJSON(message)
-				if err != nil {
-					ws.logger.Error("broadcast error", mlog.Err(err))
-					listener.Close()
-				}
+			err := listener.WriteJSON(message)
+			if err != nil {
+				ws.logger.Error("broadcast error", mlog.Err(err))
+				listener.Close()
 			}
 		}
 	}