-
Notifications
You must be signed in to change notification settings - Fork 69
/
errors.go
169 lines (152 loc) · 5.33 KB
/
errors.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
package core
import (
"context"
"encoding/json"
"errors"
"github.com/hashicorp/go-multierror"
"github.com/wundergraph/cosmo/router/internal/cdn"
"github.com/wundergraph/cosmo/router/pkg/pubsub"
rtrace "github.com/wundergraph/cosmo/router/pkg/trace"
"github.com/wundergraph/graphql-go-tools/v2/pkg/engine/resolve"
"github.com/wundergraph/graphql-go-tools/v2/pkg/graphqlerrors"
"github.com/wundergraph/graphql-go-tools/v2/pkg/operationreport"
"go.opentelemetry.io/otel/trace"
"go.uber.org/zap"
"net"
"net/http"
)
type errorType int
const (
errorTypeUnknown errorType = iota
errorTypeRateLimit
errorTypeUnauthorized
errorTypeContextCanceled
errorTypeContextTimeout
errorTypeUpgradeFailed
errorTypeEDFS
)
type (
GraphQLErrorResponse struct {
Errors []graphqlError `json:"errors"`
Data any `json:"data"`
Extensions *Extensions `json:"extensions,omitempty"`
}
Extensions struct {
RateLimit json.RawMessage `json:"rateLimit,omitempty"`
Authorization json.RawMessage `json:"authorization,omitempty"`
Trace json.RawMessage `json:"trace,omitempty"`
StatusCode int `json:"statusCode,omitempty"`
}
)
func getErrorType(err error) errorType {
if errors.Is(err, ErrRateLimitExceeded) {
return errorTypeRateLimit
}
if errors.Is(err, ErrUnauthorized) {
return errorTypeUnauthorized
}
if errors.Is(err, context.Canceled) {
return errorTypeContextCanceled
}
var upgradeErr *ErrUpgradeFailed
if errors.As(err, &upgradeErr) {
return errorTypeUpgradeFailed
}
var nErr net.Error
if errors.As(err, &nErr) {
if nErr.Timeout() {
return errorTypeContextTimeout
}
}
var edfsErr *pubsub.Error
if errors.As(err, &edfsErr) {
return errorTypeEDFS
}
return errorTypeUnknown
}
func logInternalErrorsFromReport(report *operationreport.Report, requestLogger *zap.Logger) {
var internalErr error
for _, err := range report.InternalErrors {
internalErr = multierror.Append(internalErr, err)
}
if internalErr != nil {
requestLogger.Error("internal error", zap.Error(internalErr))
}
}
// trackResponseError sets the final response error on the request context and
// attaches it to the span. This is used to process the error in the outer middleware
// and therefore only intended to be used in the GraphQL handler.
func trackResponseError(ctx context.Context, err error) {
if err == nil {
return
}
reqCtx := getRequestContext(ctx)
if reqCtx == nil {
return
}
reqCtx.error = err
rtrace.AttachErrToSpan(trace.SpanFromContext(ctx), err)
}
// propagateSubgraphErrors propagates the subgraph errors to the request context
func propagateSubgraphErrors(ctx *resolve.Context, logger *zap.Logger) {
err := ctx.SubgraphErrors()
if err != nil {
logger.Error("subgraph errors", zap.Error(err))
trackResponseError(ctx.Context(), err)
}
}
// writeRequestErrors writes the given request errors to the http.ResponseWriter.
// It accepts a graphqlerrors.RequestErrors object and writes it to the response based on the GraphQL spec.
func writeRequestErrors(r *http.Request, w http.ResponseWriter, statusCode int, requestErrors graphqlerrors.RequestErrors, requestLogger *zap.Logger) {
if requestErrors != nil {
if statusCode != 0 {
w.WriteHeader(statusCode)
}
if r.URL.Query().Has("wg_sse") {
_, err := w.Write([]byte("event: next\ndata: "))
if err != nil {
if requestLogger != nil {
requestLogger.Error("error writing response", zap.Error(err))
}
return
}
}
if _, err := requestErrors.WriteResponse(w); err != nil {
if requestLogger != nil {
requestLogger.Error("error writing response", zap.Error(err))
}
}
}
}
// writeOperationError writes the given error to the http.ResponseWriter but evaluates the error type first.
// It also logs additional information about the error.
func writeOperationError(r *http.Request, w http.ResponseWriter, requestLogger *zap.Logger, err error) {
var reportErr ReportError
var inputErr InputError
var poNotFoundErr cdn.PersistentOperationNotFoundError
switch {
case errors.As(err, &inputErr):
requestLogger.Debug(inputErr.Error())
writeRequestErrors(r, w, inputErr.StatusCode(), graphqlerrors.RequestErrorsFromError(err), requestLogger)
case errors.As(err, &poNotFoundErr):
requestLogger.Debug("persisted operation not found",
zap.String("sha256Hash", poNotFoundErr.Sha256Hash()),
zap.String("clientName", poNotFoundErr.ClientName()))
writeRequestErrors(r, w, http.StatusBadRequest, graphqlerrors.RequestErrorsFromError(errors.New(cdn.PersistedOperationNotFoundErrorCode)), requestLogger)
case errors.As(err, &reportErr):
report := reportErr.Report()
logInternalErrorsFromReport(reportErr.Report(), requestLogger)
requestErrors := graphqlerrors.RequestErrorsFromOperationReport(*report)
if len(requestErrors) > 0 {
writeRequestErrors(r, w, http.StatusOK, requestErrors, requestLogger)
return
} else {
// there was no external errors to return to user,
// so we return an internal server error
writeRequestErrors(r, w, http.StatusInternalServerError, graphqlerrors.RequestErrorsFromError(errInternalServer), requestLogger)
}
default: // If we have an unknown error, we log it and return an internal server error
requestLogger.Error("unknown operation error", zap.Error(err))
writeRequestErrors(r, w, http.StatusInternalServerError, graphqlerrors.RequestErrorsFromError(errInternalServer), requestLogger)
}
}