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Chore: Fix linting issues caught by ruleguard (#28799)

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* Chore: Fix linting issues caught by ruleguard

Signed-off-by: Arve Knudsen <arve.knudsen@gmail.com>

* Improve error check

Signed-off-by: Arve Knudsen <arve.knudsen@gmail.com>
This commit is contained in:
Arve Knudsen 2020-11-17 11:27:45 +01:00 committed by GitHub
parent 967e9b39e8
commit 2bf964c61e
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
6 changed files with 39 additions and 33 deletions
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11
pkg/bus/bus.go
View File

@ -3,6 +3,7 @@ package bus
import (
"context"
"errors"
"fmt"
"reflect"
)
@ -140,9 +141,13 @@ func (b *InProcBus) Publish(msg Msg) error {
for _, listenerHandler := range listeners {
ret := reflect.ValueOf(listenerHandler).Call(params)
err := ret[0].Interface()
if err != nil {
return err.(error)
e := ret[0].Interface()
if e != nil {
err, ok := e.(error)
if ok {
return err
}
return fmt.Errorf("expected listener to return an error, got '%T'", e)
}
}

38
pkg/middleware/auth_proxy.go
View File

@ -15,11 +15,11 @@ var header = setting.AuthProxyHeaderName
func logUserIn(auth *authproxy.AuthProxy, username string, logger log.Logger, ignoreCache bool) (int64, *authproxy.Error) {
logger.Debug("Trying to log user in", "username", username, "ignoreCache", ignoreCache)
// Try to log in user via various providers
id, err := auth.Login(logger, ignoreCache)
if err != nil {
logger.Error("Failed to login", "username", username, "message", err.Error(), "error", err.DetailsError,
id, e := auth.Login(logger, ignoreCache)
if e != nil {
logger.Error("Failed to login", "username", username, "message", e.Error(), "error", e.DetailsError,
"ignoreCache", ignoreCache)
return 0, err
return 0, e
}
return id, nil
}
@ -55,16 +55,16 @@ func initContextWithAuthProxy(store *remotecache.RemoteCache, ctx *models.ReqCon
return true
}
id, err := logUserIn(auth, username, logger, false)
if err != nil {
ctx.Handle(407, err.Error(), err.DetailsError)
id, e := logUserIn(auth, username, logger, false)
if e != nil {
ctx.Handle(407, e.Error(), e.DetailsError)
return true
}
logger.Debug("Got user ID, getting full user info", "userID", id)
user, err := auth.GetSignedUser(id)
if err != nil {
user, e := auth.GetSignedUser(id)
if e != nil {
// The reason we couldn't find the user corresponding to the ID might be that the ID was found from a stale
// cache entry. For example, if a user is deleted via the API, corresponding cache entries aren't invalidated
// because cache keys are computed from request header values and not just the user ID. Meaning that
@ -76,15 +76,15 @@ func initContextWithAuthProxy(store *remotecache.RemoteCache, ctx *models.ReqCon
logger.Error("Got unexpected error when removing user from auth cache", "error", err)
}
}
id, err = logUserIn(auth, username, logger, true)
if err != nil {
ctx.Handle(407, err.Error(), err.DetailsError)
id, e = logUserIn(auth, username, logger, true)
if e != nil {
ctx.Handle(407, e.Error(), e.DetailsError)
return true
}
user, err = auth.GetSignedUser(id)
if err != nil {
ctx.Handle(407, err.Error(), err.DetailsError)
user, e = auth.GetSignedUser(id)
if e != nil {
ctx.Handle(407, e.Error(), e.DetailsError)
return true
}
}
@ -96,14 +96,14 @@ func initContextWithAuthProxy(store *remotecache.RemoteCache, ctx *models.ReqCon
ctx.IsSignedIn = true
// Remember user data in cache
if err := auth.Remember(id); err != nil {
if e := auth.Remember(id); e != nil {
logger.Error(
"Failed to store user in cache",
"username", username,
"message", err.Error(),
"error", err.DetailsError,
"message", e.Error(),
"error", e.DetailsError,
)
ctx.Handle(500, err.Error(), err.DetailsError)
ctx.Handle(500, e.Error(), e.DetailsError)
return true
}

11
pkg/middleware/auth_proxy/auth_proxy.go
View File

@ -6,6 +6,7 @@ import (
"hash/fnv"
"net"
"net/mail"
"path"
"reflect"
"strings"
"time"
@ -179,12 +180,12 @@ func (auth *AuthProxy) Login(logger log.Logger, ignoreCache bool) (int64, *Error
}
if isLDAPEnabled() {
id, err := auth.LoginViaLDAP()
if err != nil {
if err == ldap.ErrInvalidCredentials {
id, e := auth.LoginViaLDAP()
if e != nil {
if e == ldap.ErrInvalidCredentials {
return 0, newError("proxy authentication required", ldap.ErrInvalidCredentials)
}
return 0, newError("failed to get the user", err)
return 0, newError("failed to get the user", e)
}
return id, nil
@ -347,7 +348,7 @@ func (auth *AuthProxy) Remember(id int64) *Error {
func coerceProxyAddress(proxyAddr string) (*net.IPNet, error) {
proxyAddr = strings.TrimSpace(proxyAddr)
if !strings.Contains(proxyAddr, "/") {
proxyAddr = strings.Join([]string{proxyAddr, "32"}, "/")
proxyAddr = path.Join(proxyAddr, "32")
}
_, network, err := net.ParseCIDR(proxyAddr)

4
pkg/tsdb/mssql/macros.go
View File

@ -90,7 +90,7 @@ func (m *msSqlMacroEngine) evaluateMacro(name string, args []string) (string, er
case "__timeGroupAlias":
tg, err := m.evaluateMacro("__timeGroup", args)
if err == nil {
return tg + " AS [time]", err
return tg + " AS [time]", nil
}
return "", err
case "__unixEpochFilter":
@ -125,7 +125,7 @@ func (m *msSqlMacroEngine) evaluateMacro(name string, args []string) (string, er
case "__unixEpochGroupAlias":
tg, err := m.evaluateMacro("__unixEpochGroup", args)
if err == nil {
return tg + " AS [time]", err
return tg + " AS [time]", nil
}
return "", err
default:

4
pkg/tsdb/mysql/macros.go
View File

@ -96,7 +96,7 @@ func (m *mySqlMacroEngine) evaluateMacro(name string, args []string) (string, er
case "__timeGroupAlias":
tg, err := m.evaluateMacro("__timeGroup", args)
if err == nil {
return tg + " AS \"time\"", err
return tg + " AS \"time\"", nil
}
return "", err
case "__unixEpochFilter":
@ -131,7 +131,7 @@ func (m *mySqlMacroEngine) evaluateMacro(name string, args []string) (string, er
case "__unixEpochGroupAlias":
tg, err := m.evaluateMacro("__unixEpochGroup", args)
if err == nil {
return tg + " AS \"time\"", err
return tg + " AS \"time\"", nil
}
return "", err
default:

4
pkg/tsdb/postgres/macros.go
View File

@ -120,7 +120,7 @@ func (m *postgresMacroEngine) evaluateMacro(name string, args []string) (string,
case "__timeGroupAlias":
tg, err := m.evaluateMacro("__timeGroup", args)
if err == nil {
return tg + " AS \"time\"", err
return tg + " AS \"time\"", nil
}
return "", err
case "__unixEpochFilter":
@ -155,7 +155,7 @@ func (m *postgresMacroEngine) evaluateMacro(name string, args []string) (string,
case "__unixEpochGroupAlias":
tg, err := m.evaluateMacro("__unixEpochGroup", args)
if err == nil {
return tg + " AS \"time\"", err
return tg + " AS \"time\"", nil
}
return "", err
default: