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catservice.go
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catservice.go
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package catservice
/*
Copyright 2019 - 2020 Crunchy Data Solutions, 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.
*/
import (
"encoding/json"
"github.com/crunchydata/postgres-operator/internal/apiserver"
msgs "github.com/crunchydata/postgres-operator/pkg/apiservermsgs"
log "github.com/sirupsen/logrus"
"net/http"
)
// CatHandler ...
// pgo cat mycluster /pgdata/mycluster/postgresql.conf /tmp/foo
func CatHandler(w http.ResponseWriter, r *http.Request) {
// swagger:operation POST /cat catservice cat
/*```
CAT performs a Linux `cat` command on a cluster file
*/
// ---
// produces:
// - application/json
// parameters:
// - name: "Cat Request"
// in: "body"
// schema:
// "$ref": "#/definitions/CatRequest"
// responses:
// '200':
// description: Output
// schema:
// "$ref": "#/definitions/CatResponse"
var err error
var username, ns string
log.Debug("catservice.CatHandler called")
var request msgs.CatRequest
_ = json.NewDecoder(r.Body).Decode(&request)
username, err = apiserver.Authn(apiserver.CAT_PERM, w, r)
if err != nil {
return
}
w.Header().Set("WWW-Authenticate", `Basic realm="Restricted"`)
w.Header().Set("Content-Type", "application/json")
w.WriteHeader(http.StatusOK)
ns, err = apiserver.GetNamespace(apiserver.Clientset, username, request.Namespace)
if err != nil {
resp := msgs.CatResponse{}
resp.Status.Code = msgs.Error
resp.Status.Msg = err.Error()
json.NewEncoder(w).Encode(resp)
return
}
catResponse := Cat(&request, ns)
if err != nil {
resp := msgs.CatResponse{}
resp.Status.Code = msgs.Error
resp.Status.Msg = err.Error()
json.NewEncoder(w).Encode(resp)
return
}
json.NewEncoder(w).Encode(catResponse)
}