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http.go
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http.go
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/*
Copyright 2023 The Dapr Authors
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package http
import (
"bytes"
"context"
"encoding/json"
"errors"
"fmt"
"io"
nethttp "net/http"
"strconv"
"strings"
"time"
"github.com/go-chi/chi/v5"
"github.com/mitchellh/mapstructure"
"github.com/valyala/fasthttp"
"go.opentelemetry.io/otel/trace"
"google.golang.org/grpc/codes"
"github.com/dapr/components-contrib/bindings"
"github.com/dapr/components-contrib/configuration"
contribMetadata "github.com/dapr/components-contrib/metadata"
"github.com/dapr/components-contrib/pubsub"
"github.com/dapr/components-contrib/state"
"github.com/dapr/dapr/pkg/actors"
actorerrors "github.com/dapr/dapr/pkg/actors/errors"
apierrors "github.com/dapr/dapr/pkg/api/errors"
"github.com/dapr/dapr/pkg/api/http/endpoints"
"github.com/dapr/dapr/pkg/api/universal"
"github.com/dapr/dapr/pkg/channel/http"
stateLoader "github.com/dapr/dapr/pkg/components/state"
"github.com/dapr/dapr/pkg/config"
diag "github.com/dapr/dapr/pkg/diagnostics"
diagConsts "github.com/dapr/dapr/pkg/diagnostics/consts"
diagUtils "github.com/dapr/dapr/pkg/diagnostics/utils"
"github.com/dapr/dapr/pkg/encryption"
"github.com/dapr/dapr/pkg/messages"
invokev1 "github.com/dapr/dapr/pkg/messaging/v1"
internalsv1pb "github.com/dapr/dapr/pkg/proto/internals/v1"
runtimev1pb "github.com/dapr/dapr/pkg/proto/runtime/v1"
"github.com/dapr/dapr/pkg/resiliency"
"github.com/dapr/dapr/pkg/runtime/channels"
runtimePubsub "github.com/dapr/dapr/pkg/runtime/pubsub"
"github.com/dapr/dapr/utils"
kiterrors "github.com/dapr/kit/errors"
)
// API returns a list of HTTP endpoints for Dapr.
type API interface {
APIEndpoints() []endpoints.Endpoint
PublicEndpoints() []endpoints.Endpoint
MarkStatusAsReady()
MarkStatusAsOutboundReady()
}
type api struct {
universal *universal.Universal
endpoints []endpoints.Endpoint
publicEndpoints []endpoints.Endpoint
directMessaging invokev1.DirectMessaging
channels *channels.Channels
pubsubAdapter runtimePubsub.Adapter
sendToOutputBindingFn func(ctx context.Context, name string, req *bindings.InvokeRequest) (*bindings.InvokeResponse, error)
readyStatus bool
outboundReadyStatus bool
tracingSpec config.TracingSpec
maxRequestBodySize int64 // In bytes
}
const (
apiVersionV1 = "v1.0"
apiVersionV1alpha1 = "v1.0-alpha1"
apiVersionV1beta1 = "v1.0-beta1"
methodParam = "method"
wildcardParam = "*"
topicParam = "topic"
actorTypeParam = "actorType"
actorIDParam = "actorId"
storeNameParam = "storeName"
stateKeyParam = "key"
configurationKeyParam = "key"
configurationSubscribeID = "configurationSubscribeID"
secretStoreNameParam = "secretStoreName"
secretNameParam = "key"
nameParam = "name"
workflowComponent = "workflowComponent"
workflowName = "workflowName"
instanceID = "instanceID"
eventName = "eventName"
consistencyParam = "consistency"
concurrencyParam = "concurrency"
pubsubnameparam = "pubsubname"
traceparentHeader = "traceparent"
tracestateHeader = "tracestate"
daprAppID = "dapr-app-id"
daprRuntimeVersionKey = "daprRuntimeVersion"
)
// APIOpts contains the options for NewAPI.
type APIOpts struct {
Universal *universal.Universal
Channels *channels.Channels
DirectMessaging invokev1.DirectMessaging
PubsubAdapter runtimePubsub.Adapter
SendToOutputBindingFn func(ctx context.Context, name string, req *bindings.InvokeRequest) (*bindings.InvokeResponse, error)
TracingSpec config.TracingSpec
MaxRequestBodySize int64 // In bytes
}
// NewAPI returns a new API.
func NewAPI(opts APIOpts) API {
api := &api{
universal: opts.Universal,
channels: opts.Channels,
directMessaging: opts.DirectMessaging,
pubsubAdapter: opts.PubsubAdapter,
sendToOutputBindingFn: opts.SendToOutputBindingFn,
tracingSpec: opts.TracingSpec,
maxRequestBodySize: opts.MaxRequestBodySize,
}
metadataEndpoints := api.constructMetadataEndpoints()
healthEndpoints := api.constructHealthzEndpoints()
api.endpoints = append(api.endpoints, api.constructStateEndpoints()...)
api.endpoints = append(api.endpoints, api.constructSecretsEndpoints()...)
api.endpoints = append(api.endpoints, api.constructPubSubEndpoints()...)
api.endpoints = append(api.endpoints, api.constructActorEndpoints()...)
api.endpoints = append(api.endpoints, api.constructDirectMessagingEndpoints()...)
api.endpoints = append(api.endpoints, metadataEndpoints...)
api.endpoints = append(api.endpoints, api.constructShutdownEndpoints()...)
api.endpoints = append(api.endpoints, api.constructBindingsEndpoints()...)
api.endpoints = append(api.endpoints, api.constructConfigurationEndpoints()...)
api.endpoints = append(api.endpoints, api.constructSubtleCryptoEndpoints()...)
api.endpoints = append(api.endpoints, api.constructCryptoEndpoints()...)
api.endpoints = append(api.endpoints, healthEndpoints...)
api.endpoints = append(api.endpoints, api.constructDistributedLockEndpoints()...)
api.endpoints = append(api.endpoints, api.constructWorkflowEndpoints()...)
api.publicEndpoints = append(api.publicEndpoints, metadataEndpoints...)
api.publicEndpoints = append(api.publicEndpoints, healthEndpoints...)
return api
}
// APIEndpoints returns the list of registered endpoints.
func (a *api) APIEndpoints() []endpoints.Endpoint {
return a.endpoints
}
// PublicEndpoints returns the list of registered endpoints.
func (a *api) PublicEndpoints() []endpoints.Endpoint {
return a.publicEndpoints
}
// MarkStatusAsReady marks the ready status of dapr.
func (a *api) MarkStatusAsReady() {
a.readyStatus = true
}
// MarkStatusAsOutboundReady marks the ready status of dapr for outbound traffic.
func (a *api) MarkStatusAsOutboundReady() {
a.outboundReadyStatus = true
}
var endpointGroupStateV1 = &endpoints.EndpointGroup{
Name: endpoints.EndpointGroupState,
Version: endpoints.EndpointGroupVersion1,
AppendSpanAttributes: appendStateSpanAttributes,
}
func appendStateSpanAttributes(r *nethttp.Request, m map[string]string) {
m[diagConsts.DBSystemSpanAttributeKey] = diagConsts.StateBuildingBlockType
m[diagConsts.DBConnectionStringSpanAttributeKey] = diagConsts.StateBuildingBlockType
m[diagConsts.DBStatementSpanAttributeKey] = r.Method + " " + r.URL.Path
m[diagConsts.DBNameSpanAttributeKey] = chi.URLParam(r, storeNameParam)
}
func (a *api) constructStateEndpoints() []endpoints.Endpoint {
return []endpoints.Endpoint{
{
Methods: []string{nethttp.MethodGet},
Route: "state/{storeName}/{key}",
Version: apiVersionV1,
Group: endpointGroupStateV1,
FastHTTPHandler: a.onGetState,
Settings: endpoints.EndpointSettings{
Name: "GetState",
},
},
{
Methods: []string{nethttp.MethodPost, nethttp.MethodPut},
Route: "state/{storeName}",
Version: apiVersionV1,
Group: endpointGroupStateV1,
FastHTTPHandler: a.onPostState,
Settings: endpoints.EndpointSettings{
Name: "SaveState",
},
},
{
Methods: []string{nethttp.MethodDelete},
Route: "state/{storeName}/{key}",
Version: apiVersionV1,
Group: endpointGroupStateV1,
FastHTTPHandler: a.onDeleteState,
Settings: endpoints.EndpointSettings{
Name: "DeleteState",
},
},
{
Methods: []string{nethttp.MethodPost, nethttp.MethodPut},
Route: "state/{storeName}/bulk",
Version: apiVersionV1,
Group: endpointGroupStateV1,
FastHTTPHandler: a.onBulkGetState,
Settings: endpoints.EndpointSettings{
Name: "GetBulkState",
},
},
{
Methods: []string{nethttp.MethodPost, nethttp.MethodPut},
Route: "state/{storeName}/transaction",
Version: apiVersionV1,
Group: endpointGroupStateV1,
FastHTTPHandler: a.onPostStateTransaction,
Settings: endpoints.EndpointSettings{
Name: "ExecuteStateTransaction",
},
},
{
Methods: []string{nethttp.MethodPost, nethttp.MethodPut},
Route: "state/{storeName}/query",
Version: apiVersionV1alpha1,
Group: &endpoints.EndpointGroup{
Name: endpoints.EndpointGroupState,
Version: endpoints.EndpointGroupVersion1alpha1,
AppendSpanAttributes: appendStateSpanAttributes,
},
Handler: a.onQueryStateHandler(),
Settings: endpoints.EndpointSettings{
Name: "QueryStateAlpha1",
},
},
}
}
func appendPubSubSpanAttributes(r *nethttp.Request, m map[string]string) {
m[diagConsts.MessagingSystemSpanAttributeKey] = "pubsub"
m[diagConsts.MessagingDestinationSpanAttributeKey] = chi.URLParam(r, "topic")
m[diagConsts.MessagingDestinationKindSpanAttributeKey] = diagConsts.MessagingDestinationTopicKind
}
func (a *api) constructPubSubEndpoints() []endpoints.Endpoint {
return []endpoints.Endpoint{
{
Methods: []string{nethttp.MethodPost, nethttp.MethodPut},
Route: "publish/{pubsubname}/*",
Version: apiVersionV1,
Group: &endpoints.EndpointGroup{
Name: endpoints.EndpointGroupPubsub,
Version: endpoints.EndpointGroupVersion1,
AppendSpanAttributes: appendPubSubSpanAttributes,
},
FastHTTPHandler: a.onPublish,
Settings: endpoints.EndpointSettings{
Name: "PublishEvent",
},
},
{
Methods: []string{nethttp.MethodPost, nethttp.MethodPut},
Route: "publish/bulk/{pubsubname}/*",
Version: apiVersionV1alpha1,
Group: &endpoints.EndpointGroup{
Name: endpoints.EndpointGroupPubsub,
Version: endpoints.EndpointGroupVersion1alpha1,
AppendSpanAttributes: appendPubSubSpanAttributes,
},
FastHTTPHandler: a.onBulkPublish,
Settings: endpoints.EndpointSettings{
Name: "BulkPublishEvent",
},
},
}
}
func appendBindingsSpanAttributes(r *nethttp.Request, m map[string]string) {
m[diagConsts.DBSystemSpanAttributeKey] = diagConsts.BindingBuildingBlockType
m[diagConsts.DBConnectionStringSpanAttributeKey] = diagConsts.BindingBuildingBlockType
m[diagConsts.DBStatementSpanAttributeKey] = r.Method + " " + r.URL.Path
m[diagConsts.DBNameSpanAttributeKey] = chi.URLParam(r, nameParam)
}
func (a *api) constructBindingsEndpoints() []endpoints.Endpoint {
return []endpoints.Endpoint{
{
Methods: []string{nethttp.MethodPost, nethttp.MethodPut},
Route: "bindings/{name}",
Version: apiVersionV1,
Group: &endpoints.EndpointGroup{
Name: endpoints.EndpointGroupBindings,
Version: endpoints.EndpointGroupVersion1,
AppendSpanAttributes: appendBindingsSpanAttributes,
},
FastHTTPHandler: a.onOutputBindingMessage,
Settings: endpoints.EndpointSettings{
Name: "InvokeBinding",
},
},
}
}
var endpointGroupActorV1State = &endpoints.EndpointGroup{
Name: endpoints.EndpointGroupActors,
Version: endpoints.EndpointGroupVersion1,
AppendSpanAttributes: appendActorStateSpanAttributesFn,
}
// For timers and reminders
var endpointGroupActorV1Misc = &endpoints.EndpointGroup{
Name: endpoints.EndpointGroupActors,
Version: endpoints.EndpointGroupVersion1,
AppendSpanAttributes: nil, // TODO
}
func appendActorStateSpanAttributesFn(r *nethttp.Request, m map[string]string) {
m[diagConsts.DaprAPIActorTypeID] = chi.URLParam(r, actorTypeParam) + "." + chi.URLParam(r, actorIDParam)
m[diagConsts.DBSystemSpanAttributeKey] = diagConsts.StateBuildingBlockType
m[diagConsts.DBConnectionStringSpanAttributeKey] = diagConsts.StateBuildingBlockType
m[diagConsts.DBStatementSpanAttributeKey] = r.Method + " " + r.URL.Path
m[diagConsts.DBNameSpanAttributeKey] = "actor"
}
func appendActorInvocationSpanAttributesFn(r *nethttp.Request, m map[string]string) {
actorType := chi.URLParam(r, actorTypeParam)
actorTypeID := actorType + "." + chi.URLParam(r, actorIDParam)
m[diagConsts.DaprAPIActorTypeID] = actorTypeID
m[diagConsts.GrpcServiceSpanAttributeKey] = "ServiceInvocation"
m[diagConsts.NetPeerNameSpanAttributeKey] = actorTypeID
m[diagConsts.DaprAPISpanNameInternal] = "CallActor/" + actorType + "/" + chi.URLParam(r, "method")
}
func actorInvocationMethodNameFn(r *nethttp.Request) string {
return "InvokeActor/" + chi.URLParam(r, actorTypeParam) + "." + chi.URLParam(r, actorIDParam)
}
func (a *api) constructActorEndpoints() []endpoints.Endpoint {
return []endpoints.Endpoint{
{
Methods: []string{nethttp.MethodPost, nethttp.MethodPut},
Route: "actors/{actorType}/{actorId}/state",
Version: apiVersionV1,
Group: endpointGroupActorV1State,
FastHTTPHandler: a.onActorStateTransaction,
Settings: endpoints.EndpointSettings{
Name: "ExecuteActorStateTransaction",
},
},
{
Methods: []string{nethttp.MethodGet, nethttp.MethodPost, nethttp.MethodDelete, nethttp.MethodPut},
Route: "actors/{actorType}/{actorId}/method/{method}",
Version: apiVersionV1,
Group: &endpoints.EndpointGroup{
Name: endpoints.EndpointGroupActors,
Version: endpoints.EndpointGroupVersion1,
AppendSpanAttributes: appendActorInvocationSpanAttributesFn,
MethodName: actorInvocationMethodNameFn,
},
FastHTTPHandler: a.onDirectActorMessage,
Settings: endpoints.EndpointSettings{
Name: "InvokeActor",
},
},
{
Methods: []string{nethttp.MethodGet},
Route: "actors/{actorType}/{actorId}/state/{key}",
Version: apiVersionV1,
Group: endpointGroupActorV1State,
FastHTTPHandler: a.onGetActorState,
Settings: endpoints.EndpointSettings{
Name: "GetActorState",
},
},
{
Methods: []string{nethttp.MethodPost, nethttp.MethodPut},
Route: "actors/{actorType}/{actorId}/reminders/{name}",
Version: apiVersionV1,
Group: endpointGroupActorV1Misc,
FastHTTPHandler: a.onCreateActorReminder,
Settings: endpoints.EndpointSettings{
Name: "RegisterActorReminder",
},
},
{
Methods: []string{nethttp.MethodPost, nethttp.MethodPut},
Route: "actors/{actorType}/{actorId}/timers/{name}",
Version: apiVersionV1,
Group: endpointGroupActorV1Misc,
FastHTTPHandler: a.onCreateActorTimer,
Settings: endpoints.EndpointSettings{
Name: "RegisterActorTimer",
},
},
{
Methods: []string{nethttp.MethodDelete},
Route: "actors/{actorType}/{actorId}/reminders/{name}",
Version: apiVersionV1,
Group: endpointGroupActorV1Misc,
FastHTTPHandler: a.onDeleteActorReminder,
Settings: endpoints.EndpointSettings{
Name: "UnregisterActorReminder",
},
},
{
Methods: []string{nethttp.MethodDelete},
Route: "actors/{actorType}/{actorId}/timers/{name}",
Version: apiVersionV1,
Group: endpointGroupActorV1Misc,
FastHTTPHandler: a.onDeleteActorTimer,
Settings: endpoints.EndpointSettings{
Name: "UnregisterActorTimer",
},
},
{
Methods: []string{nethttp.MethodGet},
Route: "actors/{actorType}/{actorId}/reminders/{name}",
Version: apiVersionV1,
Group: endpointGroupActorV1Misc,
FastHTTPHandler: a.onGetActorReminder,
Settings: endpoints.EndpointSettings{
Name: "GetActorReminder",
},
},
}
}
var endpointGroupConfigurationV1Alpha1 = &endpoints.EndpointGroup{
Name: endpoints.EndpointGroupConfiguration,
Version: endpoints.EndpointGroupVersion1alpha1,
AppendSpanAttributes: nil, // TODO
}
var endpointGroupConfigurationV1 = &endpoints.EndpointGroup{
Name: endpoints.EndpointGroupConfiguration,
Version: endpoints.EndpointGroupVersion1,
AppendSpanAttributes: nil, // TODO
}
func (a *api) constructConfigurationEndpoints() []endpoints.Endpoint {
return []endpoints.Endpoint{
{
Methods: []string{nethttp.MethodGet},
Route: "configuration/{storeName}",
Version: apiVersionV1alpha1,
Group: endpointGroupConfigurationV1Alpha1,
FastHTTPHandler: a.onGetConfiguration,
Settings: endpoints.EndpointSettings{
Name: "GetConfiguration",
},
},
{
Methods: []string{nethttp.MethodGet},
Route: "configuration/{storeName}",
Version: apiVersionV1,
Group: endpointGroupConfigurationV1,
FastHTTPHandler: a.onGetConfiguration,
Settings: endpoints.EndpointSettings{
Name: "GetConfiguration",
},
},
{
Methods: []string{nethttp.MethodGet},
Route: "configuration/{storeName}/subscribe",
Version: apiVersionV1alpha1,
Group: endpointGroupConfigurationV1Alpha1,
FastHTTPHandler: a.onSubscribeConfiguration,
Settings: endpoints.EndpointSettings{
Name: "SubscribeConfiguration",
},
},
{
Methods: []string{nethttp.MethodGet},
Route: "configuration/{storeName}/subscribe",
Version: apiVersionV1,
Group: endpointGroupConfigurationV1,
FastHTTPHandler: a.onSubscribeConfiguration,
Settings: endpoints.EndpointSettings{
Name: "SubscribeConfiguration",
},
},
{
Methods: []string{nethttp.MethodGet},
Route: "configuration/{storeName}/{configurationSubscribeID}/unsubscribe",
Version: apiVersionV1alpha1,
Group: endpointGroupConfigurationV1Alpha1,
FastHTTPHandler: a.onUnsubscribeConfiguration,
Settings: endpoints.EndpointSettings{
Name: "UnsubscribeConfiguration",
},
},
{
Methods: []string{nethttp.MethodGet},
Route: "configuration/{storeName}/{configurationSubscribeID}/unsubscribe",
Version: apiVersionV1,
Group: endpointGroupConfigurationV1,
FastHTTPHandler: a.onUnsubscribeConfiguration,
Settings: endpoints.EndpointSettings{
Name: "UnsubscribeConfiguration",
},
},
}
}
func (a *api) onOutputBindingMessage(reqCtx *fasthttp.RequestCtx) {
name := reqCtx.UserValue(nameParam).(string)
body := reqCtx.PostBody()
var req OutputBindingRequest
err := json.Unmarshal(body, &req)
if err != nil {
msg := messages.ErrMalformedRequest.WithFormat(err)
universalFastHTTPErrorResponder(reqCtx, msg)
log.Debug(msg)
return
}
b, err := json.Marshal(req.Data)
if err != nil {
msg := NewErrorResponse("ERR_MALFORMED_REQUEST_DATA", fmt.Sprintf(messages.ErrMalformedRequestData, err))
fasthttpRespond(reqCtx, fasthttpResponseWithError(nethttp.StatusInternalServerError, msg))
log.Debug(msg)
return
}
// pass the trace context to output binding in metadata
if span := diagUtils.SpanFromContext(reqCtx); span != nil {
sc := span.SpanContext()
if req.Metadata == nil {
req.Metadata = map[string]string{}
}
// if sc is not empty context, set traceparent Header.
if !sc.Equal(trace.SpanContext{}) {
req.Metadata[traceparentHeader] = diag.SpanContextToW3CString(sc)
}
if sc.TraceState().Len() > 0 {
req.Metadata[tracestateHeader] = diag.TraceStateToW3CString(sc)
}
}
start := time.Now()
resp, err := a.sendToOutputBindingFn(reqCtx, name, &bindings.InvokeRequest{
Metadata: req.Metadata,
Data: b,
Operation: bindings.OperationKind(req.Operation),
})
elapsed := diag.ElapsedSince(start)
diag.DefaultComponentMonitoring.OutputBindingEvent(context.Background(), name, req.Operation, err == nil, elapsed)
if resp != nil {
// Set the metadata in the response even in case of error.
// HTTP binding, for example, returns metadata even for error.
for k, v := range resp.Metadata {
reqCtx.Response.Header.Add(metadataPrefix+k, v)
}
}
if err != nil {
msg := NewErrorResponse("ERR_INVOKE_OUTPUT_BINDING", fmt.Sprintf(messages.ErrInvokeOutputBinding, name, err))
fasthttpRespond(reqCtx, fasthttpResponseWithError(nethttp.StatusInternalServerError, msg))
log.Debug(msg)
return
}
if resp == nil {
fasthttpRespond(reqCtx, fasthttpResponseWithEmpty())
} else {
fasthttpRespond(reqCtx, fasthttpResponseWithJSON(nethttp.StatusOK, resp.Data, resp.Metadata))
}
}
func (a *api) onBulkGetState(reqCtx *fasthttp.RequestCtx) {
store, storeName, err := a.getStateStoreWithRequestValidation(reqCtx)
if err != nil {
log.Debug(err)
return
}
var req BulkGetRequest
err = json.Unmarshal(reqCtx.PostBody(), &req)
if err != nil {
msg := messages.ErrMalformedRequest.WithFormat(err)
universalFastHTTPErrorResponder(reqCtx, msg)
log.Debug(msg)
return
}
// merge metadata from URL query parameters
metadata := getMetadataFromFastHTTPRequest(reqCtx)
if req.Metadata == nil {
req.Metadata = metadata
} else {
for k, v := range metadata {
req.Metadata[k] = v
}
}
bulkResp := make([]BulkGetResponse, len(req.Keys))
if len(req.Keys) == 0 {
b, _ := json.Marshal(bulkResp)
fasthttpRespond(reqCtx, fasthttpResponseWithJSON(nethttp.StatusOK, b, nil))
return
}
var key string
reqs := make([]state.GetRequest, len(req.Keys))
for i, k := range req.Keys {
key, err = stateLoader.GetModifiedStateKey(k, storeName, a.universal.AppID())
if err != nil {
status := apierrors.StateStoreInvalidKeyName(storeName, k, err.Error())
universalFastHTTPErrorResponder(reqCtx, status)
log.Debug(status)
return
}
r := state.GetRequest{
Key: key,
Metadata: req.Metadata,
}
reqs[i] = r
}
start := time.Now()
policyRunner := resiliency.NewRunner[[]state.BulkGetResponse](reqCtx,
a.universal.Resiliency().ComponentOutboundPolicy(storeName, resiliency.Statestore),
)
responses, err := policyRunner(func(ctx context.Context) ([]state.BulkGetResponse, error) {
return store.BulkGet(ctx, reqs, state.BulkGetOpts{
Parallelism: req.Parallelism,
})
})
elapsed := diag.ElapsedSince(start)
diag.DefaultComponentMonitoring.StateInvoked(context.Background(), storeName, diag.BulkGet, err == nil, elapsed)
if err != nil {
msg := NewErrorResponse("ERR_STATE_BULK_GET", err.Error())
fasthttpRespond(reqCtx, fasthttpResponseWithError(nethttp.StatusInternalServerError, msg))
log.Debug(msg)
return
}
for i := 0; i < len(responses) && i < len(req.Keys); i++ {
bulkResp[i].Key = stateLoader.GetOriginalStateKey(responses[i].Key)
if responses[i].Error != "" {
log.Debugf("bulk get: error getting key %s: %s", bulkResp[i].Key, responses[i].Error)
bulkResp[i].Error = responses[i].Error
} else {
bulkResp[i].Data = json.RawMessage(responses[i].Data)
bulkResp[i].ETag = responses[i].ETag
bulkResp[i].Metadata = responses[i].Metadata
}
}
if encryption.EncryptedStateStore(storeName) {
for i := range bulkResp {
if bulkResp[i].Error != "" || len(bulkResp[i].Data) == 0 {
bulkResp[i].Data = nil
continue
}
val, err := encryption.TryDecryptValue(storeName, bulkResp[i].Data)
if err != nil {
log.Debugf("Bulk get error: %v", err)
bulkResp[i].Data = nil
bulkResp[i].Error = err.Error()
continue
}
bulkResp[i].Data = val
}
}
b, _ := json.Marshal(bulkResp)
fasthttpRespond(reqCtx, fasthttpResponseWithJSON(nethttp.StatusOK, b, nil))
}
func (a *api) getStateStoreWithRequestValidation(reqCtx *fasthttp.RequestCtx) (state.Store, string, error) {
storeName := a.getStateStoreName(reqCtx)
if a.universal.CompStore().StateStoresLen() == 0 {
err := apierrors.NotConfigured(storeName, string(contribMetadata.StateStoreType)+" store", map[string]string{"appID": a.universal.AppID()}, codes.FailedPrecondition, nethttp.StatusInternalServerError, "ERR_STATE_STORE_NOT_CONFIGURED", kiterrors.CodePrefixStateStore+kiterrors.CodeNotConfigured)
log.Debug(err)
universalFastHTTPErrorResponder(reqCtx, err)
return nil, "", err
}
stateStore, ok := a.universal.CompStore().GetStateStore(storeName)
if !ok {
err := apierrors.NotFound(storeName, string(contribMetadata.StateStoreType)+" store", map[string]string{"appID": a.universal.AppID()}, codes.InvalidArgument, nethttp.StatusBadRequest, "ERR_STATE_STORE_NOT_FOUND", kiterrors.CodePrefixStateStore+kiterrors.CodeNotFound)
log.Debug(err)
universalFastHTTPErrorResponder(reqCtx, err)
return nil, "", err
}
return stateStore, storeName, nil
}
func (a *api) onGetState(reqCtx *fasthttp.RequestCtx) {
store, storeName, err := a.getStateStoreWithRequestValidation(reqCtx)
if err != nil {
log.Debug(err)
return
}
metadata := getMetadataFromFastHTTPRequest(reqCtx)
key := reqCtx.UserValue(stateKeyParam).(string)
consistency := string(reqCtx.QueryArgs().Peek(consistencyParam))
k, err := stateLoader.GetModifiedStateKey(key, storeName, a.universal.AppID())
if err != nil {
status := apierrors.StateStoreInvalidKeyName(storeName, key, err.Error())
universalFastHTTPErrorResponder(reqCtx, status)
log.Debug(status)
return
}
req := &state.GetRequest{
Key: k,
Options: state.GetStateOption{
Consistency: consistency,
},
Metadata: metadata,
}
start := time.Now()
policyRunner := resiliency.NewRunner[*state.GetResponse](reqCtx,
a.universal.Resiliency().ComponentOutboundPolicy(storeName, resiliency.Statestore),
)
resp, err := policyRunner(func(ctx context.Context) (*state.GetResponse, error) {
return store.Get(ctx, req)
})
elapsed := diag.ElapsedSince(start)
diag.DefaultComponentMonitoring.StateInvoked(context.Background(), storeName, diag.Get, err == nil, elapsed)
if err != nil {
msg := NewErrorResponse("ERR_STATE_GET", fmt.Sprintf(messages.ErrStateGet, key, storeName, err.Error()))
fasthttpRespond(reqCtx, fasthttpResponseWithError(nethttp.StatusInternalServerError, msg))
log.Debug(msg)
return
}
if resp == nil || resp.Data == nil {
fasthttpRespond(reqCtx, fasthttpResponseWithEmpty())
return
}
if encryption.EncryptedStateStore(storeName) {
val, err := encryption.TryDecryptValue(storeName, resp.Data)
if err != nil {
msg := NewErrorResponse("ERR_STATE_GET", fmt.Sprintf(messages.ErrStateGet, key, storeName, err.Error()))
fasthttpRespond(reqCtx, fasthttpResponseWithError(nethttp.StatusInternalServerError, msg))
log.Debug(msg)
return
}
resp.Data = val
}
if resp.ETag != nil {
reqCtx.Response.Header.Add(etagHeader, *resp.ETag)
}
for k, v := range resp.Metadata {
reqCtx.Response.Header.Add(metadataPrefix+k, v)
}
fasthttpRespond(reqCtx, fasthttpResponseWithJSON(nethttp.StatusOK, resp.Data, resp.Metadata))
}
func (a *api) getConfigurationStoreWithRequestValidation(reqCtx *fasthttp.RequestCtx) (configuration.Store, string, error) {
if a.universal.CompStore().ConfigurationsLen() == 0 {
msg := NewErrorResponse("ERR_CONFIGURATION_STORE_NOT_CONFIGURED", messages.ErrConfigurationStoresNotConfigured)
fasthttpRespond(reqCtx, fasthttpResponseWithError(nethttp.StatusInternalServerError, msg))
log.Debug(msg)
return nil, "", errors.New(msg.Message)
}
storeName := a.getStateStoreName(reqCtx)
conf, ok := a.universal.CompStore().GetConfiguration(storeName)
if !ok {
msg := NewErrorResponse("ERR_CONFIGURATION_STORE_NOT_FOUND", fmt.Sprintf(messages.ErrConfigurationStoreNotFound, storeName))
fasthttpRespond(reqCtx, fasthttpResponseWithError(nethttp.StatusBadRequest, msg))
log.Debug(msg)
return nil, "", errors.New(msg.Message)
}
return conf, storeName, nil
}
type subscribeConfigurationResponse struct {
ID string `json:"id"`
}
type UnsubscribeConfigurationResponse struct {
Ok bool `json:"ok,omitempty" protobuf:"varint,1,opt,name=ok,proto3"`
Message string `json:"message,omitempty" protobuf:"bytes,2,opt,name=message,proto3"`
}
type configurationEventHandler struct {
api *api
storeName string
channels *channels.Channels
res resiliency.Provider
}
func (h *configurationEventHandler) updateEventHandler(ctx context.Context, e *configuration.UpdateEvent) error {
appChannel := h.channels.AppChannel()
if appChannel == nil {
err := fmt.Errorf("app channel is nil. unable to send configuration update from %s", h.storeName)
log.Error(err)
return err
}
for key := range e.Items {
policyDef := h.res.ComponentInboundPolicy(h.storeName, resiliency.Configuration)
eventBody := &bytes.Buffer{}
_ = json.NewEncoder(eventBody).Encode(e)
req := invokev1.NewInvokeMethodRequest("/configuration/"+h.storeName+"/"+key).
WithHTTPExtension(nethttp.MethodPost, "").
WithRawData(eventBody).
WithContentType(invokev1.JSONContentType)
if policyDef != nil {
req.WithReplay(policyDef.HasRetries())
}
defer req.Close()
policyRunner := resiliency.NewRunner[struct{}](ctx, policyDef)
_, err := policyRunner(func(ctx context.Context) (struct{}, error) {
rResp, rErr := appChannel.InvokeMethod(ctx, req, "")
if rErr != nil {
return struct{}{}, rErr
}
if rResp != nil {
defer rResp.Close()
}
if rResp != nil && rResp.Status().GetCode() != nethttp.StatusOK {
return struct{}{}, fmt.Errorf("error sending configuration item to application, status %d", rResp.Status().GetCode())
}
return struct{}{}, nil
})
if err != nil {
log.Errorf("error sending configuration item to the app: %v", err)
}
}
return nil
}
func (a *api) onSubscribeConfiguration(reqCtx *fasthttp.RequestCtx) {
store, storeName, err := a.getConfigurationStoreWithRequestValidation(reqCtx)
if err != nil {
log.Debug(err)
return
}
if a.channels.AppChannel() == nil {
msg := NewErrorResponse("ERR_APP_CHANNEL_NIL", "app channel is not initialized. cannot subscribe to configuration updates")
fasthttpRespond(reqCtx, fasthttpResponseWithError(nethttp.StatusInternalServerError, msg))
log.Debug(msg)
return
}
metadata := getMetadataFromFastHTTPRequest(reqCtx)
subscribeKeys := make([]string, 0)
keys := make([]string, 0)
queryKeys := reqCtx.QueryArgs().PeekMulti(configurationKeyParam)
for _, queryKeyByte := range queryKeys {
keys = append(keys, string(queryKeyByte))
}
if len(keys) > 0 {
subscribeKeys = append(subscribeKeys, keys...)
}
req := &configuration.SubscribeRequest{
Keys: subscribeKeys,
Metadata: metadata,
}
// create handler
handler := &configurationEventHandler{
api: a,
storeName: storeName,
channels: a.channels,
res: a.universal.Resiliency(),
}
start := time.Now()
policyRunner := resiliency.NewRunner[string](reqCtx,
a.universal.Resiliency().ComponentOutboundPolicy(storeName, resiliency.Configuration),
)
subscribeID, err := policyRunner(func(ctx context.Context) (string, error) {
return store.Subscribe(ctx, req, handler.updateEventHandler)
})
elapsed := diag.ElapsedSince(start)
diag.DefaultComponentMonitoring.ConfigurationInvoked(context.Background(), storeName, diag.ConfigurationSubscribe, err == nil, elapsed)
if err != nil {
msg := NewErrorResponse("ERR_CONFIGURATION_SUBSCRIBE", fmt.Sprintf(messages.ErrConfigurationSubscribe, keys, storeName, err.Error()))
fasthttpRespond(reqCtx, fasthttpResponseWithError(nethttp.StatusInternalServerError, msg))
log.Debug(msg)
return
}
respBytes, _ := json.Marshal(&subscribeConfigurationResponse{
ID: subscribeID,
})
fasthttpRespond(reqCtx, fasthttpResponseWithJSON(nethttp.StatusOK, respBytes, nil))
}
func (a *api) onUnsubscribeConfiguration(reqCtx *fasthttp.RequestCtx) {
store, storeName, err := a.getConfigurationStoreWithRequestValidation(reqCtx)
if err != nil {
log.Debug(err)
return
}
subscribeID := reqCtx.UserValue(configurationSubscribeID).(string)
req := configuration.UnsubscribeRequest{
ID: subscribeID,
}
start := time.Now()
policyRunner := resiliency.NewRunner[any](reqCtx,
a.universal.Resiliency().ComponentOutboundPolicy(storeName, resiliency.Configuration),
)
_, err = policyRunner(func(ctx context.Context) (any, error) {
return nil, store.Unsubscribe(ctx, &req)
})
elapsed := diag.ElapsedSince(start)
diag.DefaultComponentMonitoring.ConfigurationInvoked(context.Background(), storeName, diag.ConfigurationUnsubscribe, err == nil, elapsed)
if err != nil {
msg := NewErrorResponse("ERR_CONFIGURATION_UNSUBSCRIBE", fmt.Sprintf(messages.ErrConfigurationUnsubscribe, subscribeID, err.Error()))
errRespBytes, _ := json.Marshal(&UnsubscribeConfigurationResponse{
Ok: false,
Message: msg.Message,
})
fasthttpRespond(reqCtx, fasthttpResponseWithJSON(nethttp.StatusInternalServerError, errRespBytes, nil))
log.Debug(msg)
return
}
respBytes, _ := json.Marshal(&UnsubscribeConfigurationResponse{
Ok: true,
})
fasthttpRespond(reqCtx, fasthttpResponseWithJSON(nethttp.StatusOK, respBytes, nil))
}
func (a *api) onGetConfiguration(reqCtx *fasthttp.RequestCtx) {
store, storeName, err := a.getConfigurationStoreWithRequestValidation(reqCtx)
if err != nil {
log.Debug(err)
return
}
metadata := getMetadataFromFastHTTPRequest(reqCtx)
keys := make([]string, 0)
queryKeys := reqCtx.QueryArgs().PeekMulti(configurationKeyParam)
for _, queryKeyByte := range queryKeys {
keys = append(keys, string(queryKeyByte))
}
req := &configuration.GetRequest{
Keys: keys,
Metadata: metadata,
}
start := time.Now()
policyRunner := resiliency.NewRunner[*configuration.GetResponse](reqCtx,
a.universal.Resiliency().ComponentOutboundPolicy(storeName, resiliency.Configuration),
)
getResponse, err := policyRunner(func(ctx context.Context) (*configuration.GetResponse, error) {
return store.Get(ctx, req)
})
elapsed := diag.ElapsedSince(start)
diag.DefaultComponentMonitoring.ConfigurationInvoked(context.Background(), storeName, diag.Get, err == nil, elapsed)