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wire.go
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wire.go
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// Copyright 2022 Namespace Labs Inc; All rights reserved.
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
package sentry
import (
"context"
"errors"
"os"
"time"
"github.com/getsentry/sentry-go"
sentryhttp "github.com/getsentry/sentry-go/http"
"google.golang.org/grpc"
"google.golang.org/grpc/codes"
"google.golang.org/grpc/metadata"
"google.golang.org/grpc/peer"
"google.golang.org/grpc/status"
nsgrpc "namespacelabs.dev/foundation/std/grpc"
"namespacelabs.dev/foundation/std/grpc/logging"
"namespacelabs.dev/foundation/std/grpc/requestid"
)
func Prepare(ctx context.Context, deps ExtensionDeps) error {
key := os.Getenv("MONITORING_SENTRY_DSN")
if key == "" {
return nil
}
if err := sentry.Init(sentry.ClientOptions{
Dsn: key,
ServerName: deps.ServerInfo.ServerName,
Environment: deps.ServerInfo.EnvName,
Release: deps.ServerInfo.GetVcs().GetRevision(),
TracesSampleRate: 1.0, // XXX should be configurable.
AttachStacktrace: true,
}); err != nil {
return err
}
deps.Interceptors.ForServer(unaryInterceptor, streamInterceptor)
deps.Middleware.Add(sentryhttp.New(sentryhttp.Options{Repanic: true}).Handle)
return nil
}
func unaryInterceptor(ctx context.Context, req interface{}, info *grpc.UnaryServerInfo, handler grpc.UnaryHandler) (result interface{}, err error) {
hub := sentry.GetHubFromContext(ctx)
if hub == nil {
hub = sentry.CurrentHub().Clone()
ctx = sentry.SetHubOnContext(ctx, hub)
}
defer recoverAndReport(hub)
configureScope(ctx, hub, info.FullMethod)
result, err = handler(ctx, req)
maybeAttachError(hub, err)
return result, err
}
func streamInterceptor(srv interface{}, ss grpc.ServerStream, info *grpc.StreamServerInfo, handler grpc.StreamHandler) error {
ctx := ss.Context()
hub := sentry.GetHubFromContext(ctx)
if hub == nil {
hub = sentry.CurrentHub().Clone()
ctx = sentry.SetHubOnContext(ctx, hub)
}
defer recoverAndReport(hub)
configureScope(ctx, hub, info.FullMethod)
err := handler(srv, &serverStream{ServerStream: ss, ctx: ctx})
maybeAttachError(hub, err)
return err
}
func configureScope(ctx context.Context, hub *sentry.Hub, fullMethod string) {
scope := hub.Scope()
service, method := nsgrpc.SplitMethodName(fullMethod)
scope.SetTags(map[string]string{
"grpc.service": service,
"grpc.method": method,
})
rdata, has := requestid.RequestDataFromContext(ctx)
if has {
scope.SetContext("request_id", map[string]any{
"request_id": rdata.RequestID,
})
}
p, _ := peer.FromContext(ctx)
md, _ := metadata.FromIncomingContext(ctx)
peerAddr, originalAddr := logging.ParsePeerAddress(p, md)
grpcData := map[string]any{
"peer": peerAddr,
}
if originalAddr != "" {
grpcData["original_peer"] = originalAddr
}
scope.SetContext("grpc", grpcData)
}
func maybeAttachError(hub *sentry.Hub, err error) {
if err != nil {
grpcCode := errorStatus(err)
if hub != nil && !isUserError(grpcCode) {
hub.CaptureException(err)
}
}
}
func MaybeAttachError(ctx context.Context, err error) {
maybeAttachError(sentry.GetHubFromContext(ctx), err)
}
func isUserError(code codes.Code) bool {
switch code {
case codes.Canceled, codes.InvalidArgument, codes.NotFound, codes.PermissionDenied, codes.Unauthenticated, codes.ResourceExhausted:
return true
}
return false
}
func errorStatus(err error) codes.Code {
if errors.Is(err, context.Canceled) {
return codes.Canceled
}
if st, ok := status.FromError(err); ok {
return st.Code()
}
return codes.Unknown
}
func statusFromGrpc(code codes.Code) sentry.SpanStatus {
switch code {
case codes.OK:
return sentry.SpanStatusOK
case codes.InvalidArgument:
return sentry.SpanStatusInvalidArgument
case codes.DeadlineExceeded:
return sentry.SpanStatusDeadlineExceeded
case codes.NotFound:
return sentry.SpanStatusNotFound
case codes.AlreadyExists:
return sentry.SpanStatusAlreadyExists
case codes.PermissionDenied:
return sentry.SpanStatusPermissionDenied
case codes.ResourceExhausted:
return sentry.SpanStatusResourceExhausted
case codes.FailedPrecondition:
return sentry.SpanStatusFailedPrecondition
case codes.Aborted:
return sentry.SpanStatusAborted
case codes.OutOfRange:
return sentry.SpanStatusOutOfRange
case codes.Unimplemented:
return sentry.SpanStatusUnimplemented
case codes.Internal:
return sentry.SpanStatusInternalError
case codes.Unavailable:
return sentry.SpanStatusUnavailable
case codes.DataLoss:
return sentry.SpanStatusDataLoss
case codes.Unauthenticated:
return sentry.SpanStatusUnauthenticated
}
return sentry.SpanStatusUnknown
}
func recoverAndReport(hub *sentry.Hub) {
if err := recover(); err != nil {
eventID := hub.Recover(err)
if eventID != nil {
hub.Flush(2 * time.Second)
}
panic(err)
}
}
type serverStream struct {
grpc.ServerStream
ctx context.Context
}
func (w *serverStream) Context() context.Context {
return w.ctx
}