forked from sampork/go-sniffer
/
msg_ping.go
63 lines (53 loc) · 2.09 KB
/
msg_ping.go
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// Copyright 2021 FerretDB Inc.
//
// 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 handler
import (
"context"
"fmt"
"github.com/40t/go-sniffer/plugSrc/mongodb/build/FerretDB-internal/backends"
"github.com/40t/go-sniffer/plugSrc/mongodb/build/FerretDB-internal/handler/common"
"github.com/40t/go-sniffer/plugSrc/mongodb/build/FerretDB-internal/handler/handlererrors"
"github.com/40t/go-sniffer/plugSrc/mongodb/build/FerretDB-internal/types"
"github.com/40t/go-sniffer/plugSrc/mongodb/build/FerretDB-internal/util/lazyerrors"
"github.com/40t/go-sniffer/plugSrc/mongodb/build/FerretDB-internal/util/must"
"github.com/40t/go-sniffer/plugSrc/mongodb/build/FerretDB-internal/wire"
)
// MsgPing implements `ping` command.
func (h *Handler) MsgPing(ctx context.Context, msg *wire.OpMsg) (*wire.OpMsg, error) {
document, err := msg.Document()
if err != nil {
return nil, lazyerrors.Error(err)
}
dbName, err := common.GetRequiredParam[string](document, "$db")
if err != nil {
return nil, err
}
if _, err = h.b.Database(dbName); err != nil {
if backends.ErrorCodeIs(err, backends.ErrorCodeDatabaseNameIsInvalid) {
msg := fmt.Sprintf("Invalid namespace specified '%s'", dbName)
return nil, handlererrors.NewCommandErrorMsgWithArgument(handlererrors.ErrInvalidNamespace, msg, "ping")
}
return nil, lazyerrors.Error(err)
}
if _, err = h.b.Status(ctx, nil); err != nil {
return nil, lazyerrors.Error(err)
}
var reply wire.OpMsg
must.NoError(reply.SetSections(wire.OpMsgSection{
Documents: []*types.Document{must.NotFail(types.NewDocument(
"ok", float64(1),
))},
}))
return &reply, nil
}