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/*
* Copyright 2020 Intel Corporation, 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 api
import (
"encoding/json"
"fmt"
"io"
"net/http"
netintents "github.com/onap/multicloud-k8s/src/ncm/pkg/networkintents"
nettypes "github.com/onap/multicloud-k8s/src/ncm/pkg/networkintents/types"
"github.com/onap/multicloud-k8s/src/orchestrator/pkg/infra/validation"
pkgerrors "github.com/pkg/errors"
"github.com/gorilla/mux"
)
// Used to store backend implementations objects
// Also simplifies mocking for unit testing purposes
type networkHandler struct {
// Interface that implements Cluster operations
// We will set this variable with a mock interface for testing
client netintents.NetworkManager
}
// Check for valid format of input parameters
func validateNetworkInputs(p netintents.Network) error {
// validate name
errs := validation.IsValidName(p.Metadata.Name)
if len(errs) > 0 {
return pkgerrors.Errorf("Invalid network name - name=[%v], errors: %v", p.Metadata.Name, errs)
}
// validate cni type
found := false
for _, val := range nettypes.CNI_TYPES {
if p.Spec.CniType == val {
found = true
break
}
}
if !found {
return pkgerrors.Errorf("Invalid cni type: %v", p.Spec.CniType)
}
subnets := p.Spec.Ipv4Subnets
for _, subnet := range subnets {
err := nettypes.ValidateSubnet(subnet)
if err != nil {
return pkgerrors.Wrap(err, "invalid subnet")
}
}
return nil
}
// Create handles creation of the Network entry in the database
func (h networkHandler) createNetworkHandler(w http.ResponseWriter, r *http.Request) {
var p netintents.Network
vars := mux.Vars(r)
clusterProvider := vars["provider-name"]
cluster := vars["cluster-name"]
err := json.NewDecoder(r.Body).Decode(&p)
switch {
case err == io.EOF:
http.Error(w, "Empty body", http.StatusBadRequest)
return
case err != nil:
http.Error(w, err.Error(), http.StatusUnprocessableEntity)
return
}
// Name is required.
if p.Metadata.Name == "" {
http.Error(w, "Missing name in POST request", http.StatusBadRequest)
return
}
err = validateNetworkInputs(p)
if err != nil {
http.Error(w, err.Error(), http.StatusBadRequest)
return
}
ret, err := h.client.CreateNetwork(p, clusterProvider, cluster, false)
if err != nil {
http.Error(w, err.Error(), http.StatusInternalServerError)
return
}
w.Header().Set("Content-Type", "application/json")
w.WriteHeader(http.StatusCreated)
err = json.NewEncoder(w).Encode(ret)
if err != nil {
http.Error(w, err.Error(), http.StatusInternalServerError)
return
}
}
// Put handles creation/update of the Network entry in the database
func (h networkHandler) putNetworkHandler(w http.ResponseWriter, r *http.Request) {
var p netintents.Network
vars := mux.Vars(r)
clusterProvider := vars["provider-name"]
cluster := vars["cluster-name"]
name := vars["name"]
err := json.NewDecoder(r.Body).Decode(&p)
switch {
case err == io.EOF:
http.Error(w, "Empty body", http.StatusBadRequest)
return
case err != nil:
http.Error(w, err.Error(), http.StatusUnprocessableEntity)
return
}
// Name is required.
if p.Metadata.Name == "" {
http.Error(w, "Missing name in PUT request", http.StatusBadRequest)
return
}
// Name in URL should match name in body
if p.Metadata.Name != name {
fmt.Printf("bodyname = %v, name= %v\n", p.Metadata.Name, name)
http.Error(w, "Mismatched name in PUT request", http.StatusBadRequest)
return
}
err = validateNetworkInputs(p)
if err != nil {
http.Error(w, err.Error(), http.StatusBadRequest)
return
}
ret, err := h.client.CreateNetwork(p, clusterProvider, cluster, true)
if err != nil {
http.Error(w, err.Error(), http.StatusInternalServerError)
return
}
w.Header().Set("Content-Type", "application/json")
w.WriteHeader(http.StatusCreated)
err = json.NewEncoder(w).Encode(ret)
if err != nil {
http.Error(w, err.Error(), http.StatusInternalServerError)
return
}
}
// Get handles GET operations on a particular Network Name
// Returns a Network
func (h networkHandler) getNetworkHandler(w http.ResponseWriter, r *http.Request) {
vars := mux.Vars(r)
clusterProvider := vars["provider-name"]
cluster := vars["cluster-name"]
name := vars["name"]
var ret interface{}
var err error
if len(name) == 0 {
ret, err = h.client.GetNetworks(clusterProvider, cluster)
if err != nil {
http.Error(w, err.Error(), http.StatusInternalServerError)
return
}
} else {
ret, err = h.client.GetNetwork(name, clusterProvider, cluster)
if err != nil {
http.Error(w, err.Error(), http.StatusInternalServerError)
return
}
}
w.Header().Set("Content-Type", "application/json")
w.WriteHeader(http.StatusOK)
err = json.NewEncoder(w).Encode(ret)
if err != nil {
http.Error(w, err.Error(), http.StatusInternalServerError)
return
}
}
// Delete handles DELETE operations on a particular Network Name
func (h networkHandler) deleteNetworkHandler(w http.ResponseWriter, r *http.Request) {
vars := mux.Vars(r)
clusterProvider := vars["provider-name"]
cluster := vars["cluster-name"]
name := vars["name"]
err := h.client.DeleteNetwork(name, clusterProvider, cluster)
if err != nil {
http.Error(w, err.Error(), http.StatusInternalServerError)
return
}
w.WriteHeader(http.StatusNoContent)
}
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