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Copy pathbearer_auth_middleware.go
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Copy pathbearer_auth_middleware.go
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51 lines (41 loc) · 1.44 KB
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package middlewares
import (
"context"
"fmt"
"strings"
"firebase.google.com/go/auth"
"github.com/NdoleStudio/httpsms/pkg/entities"
"github.com/NdoleStudio/httpsms/pkg/telemetry"
"github.com/gofiber/fiber/v3"
"github.com/palantir/stacktrace"
)
// BearerAuth authenticates a user based on the bearer token
func BearerAuth(logger telemetry.Logger, tracer telemetry.Tracer, authClient *auth.Client) fiber.Handler {
logger = logger.WithService("middlewares.BearerAuth")
return func(c fiber.Ctx) error {
_, span := tracer.StartFromFiberCtx(c, "middlewares.BearerAuth")
defer span.End()
authToken := c.Get(authHeaderBearer)
if !strings.HasPrefix(authToken, bearerScheme) {
span.AddEvent(fmt.Sprintf("The request header has no [%s] token", bearerScheme))
return c.Next()
}
if len(authToken) > len(bearerScheme)+1 {
authToken = authToken[len(bearerScheme)+1:]
}
ctxLogger := tracer.CtxLogger(logger, span)
token, err := authClient.VerifyIDToken(context.Background(), authToken)
if err != nil {
msg := fmt.Sprintf("invalid firebase id token [%s]", authToken)
ctxLogger.Warn(tracer.WrapErrorSpan(span, stacktrace.Propagate(err, msg)))
return c.Next()
}
span.AddEvent(fmt.Sprintf("[%s] token is valid", bearerScheme))
authUser := entities.AuthContext{
Email: token.Claims["email"].(string),
ID: entities.UserID(token.Claims["user_id"].(string)),
}
c.Locals(ContextKeyAuthUserID, authUser)
return c.Next()
}
}