netmaker/models/node.go
2021-05-19 20:18:44 -04:00

209 lines
8.8 KiB
Go

package models
import (
"context"
"math/rand"
"net"
"time"
"github.com/gravitl/netmaker/mongoconn"
"go.mongodb.org/mongo-driver/bson"
"go.mongodb.org/mongo-driver/bson/primitive"
)
const charset = "abcdefghijklmnopqrstuvwxyz" + "ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789"
var seededRand *rand.Rand = rand.New(
rand.NewSource(time.Now().UnixNano()))
//node struct
type Node struct {
ID primitive.ObjectID `json:"_id,omitempty" bson:"_id,omitempty"`
Address string `json:"address" bson:"address" validate:"omitempty,ipv4"`
Address6 string `json:"address6" bson:"address6" validate:"omitempty,ipv6"`
LocalAddress string `json:"localaddress" bson:"localaddress" validate:"omitempty,ip"`
Name string `json:"name" bson:"name" validate:"omitempty,max=12"`
ListenPort int32 `json:"listenport" bson:"listenport" validate:"omitempty,numeric,min=1024,max=65535"`
PublicKey string `json:"publickey" bson:"publickey" validate:"required,base64"`
Endpoint string `json:"endpoint" bson:"endpoint" validate:"required,ip"`
PostUp string `json:"postup" bson:"postup"`
PostDown string `json:"postdown" bson:"postdown"`
AllowedIPs string `json:"allowedips" bson:"allowedips"`
PersistentKeepalive int32 `json:"persistentkeepalive" bson:"persistentkeepalive" validate:"omitempty,numeric,max=1000"`
SaveConfig *bool `json:"saveconfig" bson:"saveconfig"`
AccessKey string `json:"accesskey" bson:"accesskey"`
Interface string `json:"interface" bson:"interface"`
LastModified int64 `json:"lastmodified" bson:"lastmodified"`
KeyUpdateTimeStamp int64 `json:"keyupdatetimestamp" bson:"keyupdatetimestamp"`
ExpirationDateTime int64 `json:"expdatetime" bson:"expdatetime"`
LastPeerUpdate int64 `json:"lastpeerupdate" bson:"lastpeerupdate"`
LastCheckIn int64 `json:"lastcheckin" bson:"lastcheckin"`
MacAddress string `json:"macaddress" bson:"macaddress" validate:"required,mac,macaddress_unique"`
CheckInInterval int32 `json:"checkininterval" bson:"checkininterval"`
Password string `json:"password" bson:"password" validate:"required,min=6"`
Network string `json:"network" bson:"network" validate:"network_exists"`
IsPending bool `json:"ispending" bson:"ispending"`
IsEgressGateway bool `json:"isegressgateway" bson:"isegressgateway"`
IsIngressGateway bool `json:"isingressgateway" bson:"isingressgateway"`
EgressGatewayRange string `json:"gatewayrange" bson:"gatewayrange"`
PostChanges string `json:"postchanges" bson:"postchanges"`
}
//node update struct --- only validations are different
type NodeUpdate struct {
ID primitive.ObjectID `json:"_id,omitempty" bson:"_id,omitempty"`
Address string `json:"address" bson:"address" validate:"omitempty,ip"`
Address6 string `json:"address6" bson:"address6" validate:"omitempty,ipv6"`
LocalAddress string `json:"localaddress" bson:"localaddress" validate:"omitempty,ip"`
Name string `json:"name" bson:"name" validate:"omitempty,max=12"`
ListenPort int32 `json:"listenport" bson:"listenport" validate:"omitempty,numeric,min=1024,max=65535"`
PublicKey string `json:"publickey" bson:"publickey" validate:"omitempty,base64"`
Endpoint string `json:"endpoint" bson:"endpoint" validate:"omitempty,ip"`
PostUp string `json:"postup" bson:"postup"`
PostDown string `json:"postdown" bson:"postdown"`
AllowedIPs string `json:"allowedips" bson:"allowedips"`
PersistentKeepalive int32 `json:"persistentkeepalive" bson:"persistentkeepalive" validate:"omitempty,numeric,max=1000"`
SaveConfig *bool `json:"saveconfig" bson:"saveconfig"`
AccessKey string `json:"accesskey" bson:"accesskey"`
Interface string `json:"interface" bson:"interface"`
LastModified int64 `json:"lastmodified" bson:"lastmodified"`
KeyUpdateTimeStamp int64 `json:"keyupdatetimestamp" bson:"keyupdatetimestamp"`
ExpirationDateTime int64 `json:"expdatetime" bson:"expdatetime"`
LastPeerUpdate int64 `json:"lastpeerupdate" bson:"lastpeerupdate"`
LastCheckIn int64 `json:"lastcheckin" bson:"lastcheckin"`
MacAddress string `json:"macaddress" bson:"macaddress" validate:"required,mac"`
CheckInInterval int32 `json:"checkininterval" bson:"checkininterval"`
Password string `json:"password" bson:"password" validate:"omitempty,min=5"`
Network string `json:"network" bson:"network" validate:"network_exists"`
IsPending bool `json:"ispending" bson:"ispending"`
IsIngressGateway bool `json:"isingressgateway" bson:"isingressgateway"`
IsEgressGateway bool `json:"isegressgateway" bson:"isegressgateway"`
EgressGatewayRange string `json:"gatewayrange" bson:"gatewayrange"`
PostChanges string `json:"postchanges" bson:"postchanges"`
}
//Duplicated function for NodeUpdates
func (node *NodeUpdate) GetNetwork() (Network, error) {
var network Network
collection := mongoconn.NetworkDB
//collection := mongoconn.Client.Database("netmaker").Collection("networks")
ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
filter := bson.M{"netid": node.Network}
err := collection.FindOne(ctx, filter).Decode(&network)
defer cancel()
if err != nil {
//log.Fatal(err)
return network, err
}
return network, err
}
//TODO: Contains a fatal error return. Need to change
//Used in contexts where it's not the Parent network.
func (node *Node) GetNetwork() (Network, error) {
var network Network
//collection := mongoconn.NetworkDB
collection := mongoconn.Client.Database("netmaker").Collection("networks")
ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
filter := bson.M{"netid": node.Network}
err := collection.FindOne(ctx, filter).Decode(&network)
defer cancel()
if err != nil {
//log.Fatal(err)
return network, err
}
return network, err
}
//TODO:
//Not sure if below two methods are necessary. May want to revisit
func (node *Node) SetLastModified() {
node.LastModified = time.Now().Unix()
}
func (node *Node) SetLastCheckIn() {
node.LastCheckIn = time.Now().Unix()
}
func (node *Node) SetLastPeerUpdate() {
node.LastPeerUpdate = time.Now().Unix()
}
func (node *Node) SetExpirationDateTime() {
node.ExpirationDateTime = time.Unix(33174902665, 0).Unix()
}
func (node *Node) SetDefaultName() {
if node.Name == "" {
nodeid := StringWithCharset(5, charset)
nodename := "node-" + nodeid
node.Name = nodename
}
}
//TODO: I dont know why this exists
//This should exist on the node.go struct. I'm sure there was a reason?
func (node *Node) SetDefaults() {
//TODO: Maybe I should make Network a part of the node struct. Then we can just query the Network object for stuff.
parentNetwork, _ := node.GetNetwork()
node.ExpirationDateTime = time.Unix(33174902665, 0).Unix()
if node.ListenPort == 0 {
node.ListenPort = parentNetwork.DefaultListenPort
}
if node.PostDown == "" {
//Empty because we dont set it
//may want to set it to something in the future
}
//TODO: This is dumb and doesn't work
//Need to change
if node.SaveConfig == nil {
if parentNetwork.DefaultSaveConfig != nil {
defaultsave := *parentNetwork.DefaultSaveConfig
node.SaveConfig = &defaultsave
}
}
if node.Interface == "" {
node.Interface = parentNetwork.DefaultInterface
}
if node.PersistentKeepalive == 0 {
node.PersistentKeepalive = parentNetwork.DefaultKeepalive
}
if node.PostUp == "" {
postup := parentNetwork.DefaultPostUp
node.PostUp = postup
}
node.CheckInInterval = parentNetwork.DefaultCheckInInterval
}
func StringWithCharset(length int, charset string) string {
b := make([]byte, length)
for i := range b {
b[i] = charset[seededRand.Intn(len(charset))]
}
return string(b)
}
//Check for valid IPv4 address
//Note: We dont handle IPv6 AT ALL!!!!! This definitely is needed at some point
//But for iteration 1, lets just stick to IPv4. Keep it simple stupid.
func IsIpv4Net(host string) bool {
return net.ParseIP(host) != nil
}