aboutsummaryrefslogtreecommitdiffstats
path: root/src/ncm/api/networkhandler.go
blob: ed266697831d1c8268a2c5d24bcd849a94bb832a (plain)
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
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
/*
 * 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)
}