|
| 1 | +package metadata |
| 2 | + |
| 3 | +import ( |
| 4 | + "context" |
| 5 | + "sort" |
| 6 | + |
| 7 | + "github.com/owncloud/ocis/v2/ocis-pkg/log" |
| 8 | + "google.golang.org/grpc" |
| 9 | + "google.golang.org/grpc/metadata" |
| 10 | + |
| 11 | + micrometa "go-micro.dev/v4/metadata" |
| 12 | + "go-micro.dev/v4/server" |
| 13 | +) |
| 14 | + |
| 15 | +func NewMetadataLogHandler(l *log.Logger) func(fn server.HandlerFunc) server.HandlerFunc { |
| 16 | + return func(fn server.HandlerFunc) server.HandlerFunc { |
| 17 | + return func(ctx context.Context, req server.Request, rsp interface{}) error { |
| 18 | + if mdata, ok := micrometa.FromContext(ctx); ok { |
| 19 | + keys := make([]string, 0, len(mdata)) |
| 20 | + for k, _ := range mdata { |
| 21 | + keys = append(keys, k) |
| 22 | + } |
| 23 | + sort.Strings(keys) |
| 24 | + |
| 25 | + logContext := l.With() |
| 26 | + for _, sortedKey := range keys { |
| 27 | + value, _ := mdata.Get(sortedKey) |
| 28 | + logContext = logContext.Str(sortedKey, value) |
| 29 | + } |
| 30 | + |
| 31 | + mdataLogger := logContext.Str("target", req.Service()). |
| 32 | + Str("method", req.Method()). |
| 33 | + Str("endpoint", req.Endpoint()). |
| 34 | + Bool("isStream", req.Stream()). |
| 35 | + Logger() |
| 36 | + ctx = mdataLogger.WithContext(ctx) |
| 37 | + } |
| 38 | + return fn(ctx, req, rsp) |
| 39 | + } |
| 40 | + } |
| 41 | +} |
| 42 | + |
| 43 | +func NewUnaryInterceptor(l *log.Logger) grpc.UnaryServerInterceptor { |
| 44 | + return func(ctx context.Context, req interface{}, info *grpc.UnaryServerInfo, handler grpc.UnaryHandler) (interface{}, error) { |
| 45 | + if mdata, ok := metadata.FromIncomingContext(ctx); ok { |
| 46 | + keys := make([]string, 0, len(mdata)) |
| 47 | + for k, _ := range mdata { |
| 48 | + keys = append(keys, k) |
| 49 | + } |
| 50 | + sort.Strings(keys) |
| 51 | + |
| 52 | + logContext := l.With() |
| 53 | + for _, sortedKey := range keys { |
| 54 | + values := mdata.Get(sortedKey) |
| 55 | + logContext = logContext.Strs(sortedKey, values) |
| 56 | + } |
| 57 | + mdataLogger := logContext.Logger() |
| 58 | + ctx = mdataLogger.WithContext(ctx) |
| 59 | + } |
| 60 | + return handler(ctx, req) |
| 61 | + } |
| 62 | +} |
| 63 | + |
| 64 | +type serverStreamWrapper struct { |
| 65 | + grpc.ServerStream |
| 66 | + ctx context.Context |
| 67 | +} |
| 68 | + |
| 69 | +func newServerStreamWrapper(ss grpc.ServerStream, ctx context.Context) grpc.ServerStream { |
| 70 | + return &serverStreamWrapper{ss, ctx} |
| 71 | +} |
| 72 | + |
| 73 | +func (w *serverStreamWrapper) Context() context.Context { |
| 74 | + return w.ctx |
| 75 | +} |
| 76 | + |
| 77 | +func NewStreamInterceptor(l *log.Logger) grpc.StreamServerInterceptor { |
| 78 | + return func(srv interface{}, ss grpc.ServerStream, info *grpc.StreamServerInfo, handler grpc.StreamHandler) error { |
| 79 | + ctx := ss.Context() |
| 80 | + if mdata, ok := metadata.FromIncomingContext(ctx); ok { |
| 81 | + keys := make([]string, 0, len(mdata)) |
| 82 | + for k, _ := range mdata { |
| 83 | + keys = append(keys, k) |
| 84 | + } |
| 85 | + sort.Strings(keys) |
| 86 | + |
| 87 | + logContext := l.With() |
| 88 | + for _, sortedKey := range keys { |
| 89 | + values := mdata.Get(sortedKey) |
| 90 | + logContext = logContext.Strs(sortedKey, values) |
| 91 | + } |
| 92 | + mdataLogger := logContext.Logger() |
| 93 | + ctx = mdataLogger.WithContext(ctx) |
| 94 | + } |
| 95 | + return handler(srv, newServerStreamWrapper(ss, ctx)) |
| 96 | + } |
| 97 | +} |
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