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package graph
import (
"encoding/json"
"fmt"
"io/ioutil"
"os"
"strings"
"time"
"unicode"
)
type NodeType string
const (
SSID NodeType = "ssid"
BLEServer NodeType = "ble_server"
Station NodeType = "station"
AccessPoint NodeType = "access_point"
Endpoint NodeType = "endpoint"
Gateway NodeType = "gateway"
)
var NodeTypes = []NodeType{
SSID,
Station,
AccessPoint,
Endpoint,
Gateway,
BLEServer,
}
var nodeTypeDescs = map[NodeType]string{
SSID: "WiFI SSID probe",
BLEServer: "BLE Device",
Station: "WiFi Client",
AccessPoint: "WiFi AP",
Endpoint: "IP Client",
Gateway: "IP Gateway",
}
var nodeDotStyles = map[NodeType]string{
SSID: "shape=circle style=filled color=lightgray fillcolor=lightgray fixedsize=true penwidth=0.5",
BLEServer: "shape=box style=filled color=dodgerblue3",
Endpoint: "shape=box style=filled color=azure2",
Gateway: "shape=diamond style=filled color=azure4",
Station: "shape=box style=filled color=gold",
AccessPoint: "shape=diamond style=filled color=goldenrod3",
}
type Node struct {
Type NodeType `json:"type"`
CreatedAt time.Time `json:"created_at"`
UpdatedAt time.Time `json:"updated_at"`
ID string `json:"id"`
Annotations string `json:"annotations"`
Entity interface{} `json:"entity"`
Dummy bool `json:"-"`
}
func ReadNode(fileName string) (*Node, error) {
var node Node
if raw, err := ioutil.ReadFile(fileName); err != nil {
return nil, fmt.Errorf("error while reading %s: %v", fileName, err)
} else if err = json.Unmarshal(raw, &node); err != nil {
return nil, fmt.Errorf("error while decoding %s: %v", fileName, err)
}
return &node, nil
}
func WriteNode(fileName string, node *Node, update bool) error {
if update {
node.UpdatedAt = time.Now()
} else {
node.CreatedAt = time.Now()
}
if raw, err := json.Marshal(node); err != nil {
return fmt.Errorf("error creating data for %s: %v", fileName, err)
} else if err = ioutil.WriteFile(fileName, raw, os.ModePerm); err != nil {
return fmt.Errorf("error creating %s: %v", fileName, err)
}
return nil
}
func CreateNode(fileName string, node *Node) error {
return WriteNode(fileName, node, false)
}
func UpdateNode(fileName string, node *Node) error {
return WriteNode(fileName, node, true)
}
func (n Node) String() string {
if n.Dummy == false {
return fmt.Sprintf("%s_%s", n.Type, n.ID)
}
return string(n.Type)
}
func (n Node) Label() string {
if n.Dummy {
return n.Annotations
}
switch n.Type {
case SSID:
s := n.Entity.(string)
allPrint := true
for _, rn := range s {
if !unicode.IsPrint(rune(rn)) {
allPrint = false
break
}
}
if !allPrint {
s = fmt.Sprintf("0x%x", s)
}
return s
case BLEServer:
return fmt.Sprintf("%s\\n(%s)",
n.Entity.(map[string]interface{})["mac"].(string),
n.Entity.(map[string]interface{})["vendor"].(string))
case Station:
return fmt.Sprintf("%s\\n(%s)",
n.Entity.(map[string]interface{})["mac"].(string),
n.Entity.(map[string]interface{})["vendor"].(string))
case AccessPoint:
return fmt.Sprintf("%s\\n%s\\n(%s)",
n.Entity.(map[string]interface{})["hostname"].(string),
n.Entity.(map[string]interface{})["mac"].(string),
n.Entity.(map[string]interface{})["vendor"].(string))
case Endpoint:
return fmt.Sprintf("%s\\n(%s %s)",
n.Entity.(map[string]interface{})["ipv4"].(string),
n.Entity.(map[string]interface{})["mac"].(string),
n.Entity.(map[string]interface{})["vendor"].(string))
case Gateway:
return fmt.Sprintf("%s\\n(%s %s)",
n.Entity.(map[string]interface{})["ipv4"].(string),
n.Entity.(map[string]interface{})["mac"].(string),
n.Entity.(map[string]interface{})["vendor"].(string))
}
return "?"
}
func (n Node) Dot(isTarget bool) string {
style := nodeDotStyles[n.Type]
if isTarget {
style += ", color=red"
}
return fmt.Sprintf("\"%s\" [%s, label=\"%s\"];",
n.String(),
style,
strings.ReplaceAll(n.Label(), "\"", "\\\""))
}
func (n Node) ToMap() (map[string]interface{}, error) {
var m map[string]interface{}
if raw, err := json.Marshal(n); err != nil {
return nil, err
} else if err = json.Unmarshal(raw, &m); err != nil {
return nil, err
}
return m, nil
}
|
