/
unifi.go
267 lines (230 loc) · 6.99 KB
/
unifi.go
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package infrastructure
import (
"bytes"
"encoding/json"
"fmt"
"io/ioutil"
"net/http"
"net/url"
"strings"
"time"
"github.com/sirupsen/logrus"
"github.com/ryancurrah/unifi-notifications/domain/model"
)
const (
LoginURI = "api/login"
StatAlarmURI = "api/s/%s/stat/alarm"
StatEventURI = "api/s/%s/stat/event"
StatDeviceBasicURI = "api/s/%s/stat/device-basic"
ListUserURI = "api/s/%s/list/user"
ContentType = "application/json;charset=UTF-8"
AuthCookieName = "unifises"
AuthCookieDuration = time.Minute * 19
PaginateBy = 20
)
var session model.UnifiSession
type UnifiHandler struct {
Config model.UnifiConfig
HTTPClient http.Client
Logger *logrus.Logger
}
func NewUnifiHandler(config model.UnifiConfig, httpClient http.Client, logger *logrus.Logger) UnifiHandler {
return UnifiHandler{Config: config, HTTPClient: httpClient, Logger: logger}
}
func (h *UnifiHandler) GetAlarms(since time.Time) (model.UnifiSiteAlarms, error) {
unifiSiteAlarms := make(model.UnifiSiteAlarms)
for _, site := range h.Config.Sites {
pagination := model.UnifiPagination{Limit: 0, Start: 0}
newUnifiAlarms := model.UnifiAlarms{}
for {
pagination.Start = pagination.Start + pagination.Limit
pagination.Limit = pagination.Limit + PaginateBy
body, _, err := h.getURI(fmt.Sprintf(StatAlarmURI, site), pagination)
if err != nil {
return model.UnifiSiteAlarms{}, err
}
unifiAlarms := model.UnifiAlarms{}
err = json.Unmarshal(body, &unifiAlarms)
if err != nil {
return model.UnifiSiteAlarms{}, err
}
var done bool
for _, unifiAlarm := range unifiAlarms.Alarms {
if unifiAlarm.Datetime.After(since) {
newUnifiAlarms.Alarms = append(newUnifiAlarms.Alarms, unifiAlarm)
} else {
done = true
break
}
}
if done {
break
}
}
unifiSiteAlarms[site] = newUnifiAlarms
}
return unifiSiteAlarms, nil
}
func (h *UnifiHandler) GetEvents(since time.Time) (model.UnifiSiteEvents, error) {
unifiSiteDevices, err := h.getDevices()
if err != nil {
return model.UnifiSiteEvents{}, err
}
unifiSiteUsers, err := h.getUsers()
if err != nil {
return model.UnifiSiteEvents{}, err
}
unifiSiteEvents := make(model.UnifiSiteEvents)
for _, site := range h.Config.Sites {
pagination := model.UnifiPagination{Limit: 0, Start: 0}
newUnifiEvents := model.UnifiEvents{}
for {
pagination.Start = pagination.Start + pagination.Limit
pagination.Limit = pagination.Limit + PaginateBy
body, _, err := h.getURI(fmt.Sprintf(StatEventURI, site), pagination)
if err != nil {
return model.UnifiSiteEvents{}, err
}
unifiEvents := model.UnifiEvents{}
err = json.Unmarshal(body, &unifiEvents)
if err != nil {
return model.UnifiSiteEvents{}, err
}
var done bool
for _, unifiEvent := range unifiEvents.Events {
if unifiEvent.Datetime.After(since) {
unifiEvent.Msg = replaceDeviceAndUserMac(unifiSiteDevices[site], unifiSiteUsers[site], unifiEvent.Msg)
newUnifiEvents.Events = append(newUnifiEvents.Events, unifiEvent)
} else {
done = true
break
}
}
if done {
break
}
}
unifiSiteEvents[site] = newUnifiEvents
}
return unifiSiteEvents, nil
}
func (h *UnifiHandler) setAuthCookie(url *url.URL) error {
if session == (model.UnifiSession{}) || session.Expiration.After(time.Now()) {
err := h.login()
if err != nil {
return err
}
}
cookie := http.Cookie{Name: AuthCookieName, Value: session.Key}
h.HTTPClient.Jar.SetCookies(url, []*http.Cookie{&cookie})
return nil
}
func (h *UnifiHandler) login() error {
creds := model.UnifiLogin{Username: h.Config.Username, Password: h.Config.Password}
credBytes, err := json.Marshal(creds)
if err != nil {
return err
}
u, err := url.Parse(fmt.Sprintf("%s/%s", h.Config.URL, LoginURI))
if err != nil {
return err
}
h.Logger.Debugf("logging into unifi controller at url %s", u)
resp, err := h.HTTPClient.Post(u.String(), ContentType, bytes.NewBuffer(credBytes))
if err != nil {
return err
}
defer resp.Body.Close()
bodyBytes, err := ioutil.ReadAll(resp.Body)
if err != nil {
return err
}
body := string(bodyBytes)
for _, cookie := range resp.Cookies() {
if cookie.Name == AuthCookieName && cookie.Value != "" {
session = model.UnifiSession{
Key: cookie.Value,
Expiration: time.Now().Add(AuthCookieDuration),
}
return nil
}
}
return fmt.Errorf("could not login unfi controller, status=%s body=%s", resp.Status, body)
}
func (h *UnifiHandler) getURI(uri string, pagination model.UnifiPagination) ([]byte, *http.Response, error) {
paginationBytes, err := json.Marshal(pagination)
if err != nil {
return []byte{}, nil, err
}
u, err := url.Parse(fmt.Sprintf("%s/%s", h.Config.URL, uri))
if err != nil {
return []byte{}, nil, err
}
h.Logger.Debugf("getting unifi url %s", u)
err = h.setAuthCookie(u)
if err != nil {
return []byte{}, nil, err
}
resp, err := h.HTTPClient.Post(u.String(), ContentType, bytes.NewBuffer(paginationBytes))
if err != nil {
return []byte{}, resp, err
}
defer resp.Body.Close()
body, err := ioutil.ReadAll(resp.Body)
return body, resp, err
}
func (h *UnifiHandler) getDevices() (model.UnifiSiteDevices, error) {
unifiSiteDevices := make(model.UnifiSiteDevices)
for _, site := range h.Config.Sites {
pagination := model.UnifiPagination{Limit: 0, Start: 0}
newUnifiDevices := model.UnifiDevices{}
body, _, err := h.getURI(fmt.Sprintf(StatDeviceBasicURI, site), pagination)
if err != nil {
return model.UnifiSiteDevices{}, err
}
unifiDevices := model.UnifiDevices{}
err = json.Unmarshal(body, &unifiDevices)
if err != nil {
return model.UnifiSiteDevices{}, err
}
for _, unifiDevice := range unifiDevices.Devices {
newUnifiDevices.Devices = append(newUnifiDevices.Devices, unifiDevice)
}
unifiSiteDevices[site] = newUnifiDevices
}
return unifiSiteDevices, nil
}
func (h *UnifiHandler) getUsers() (model.UnifiSiteUsers, error) {
unifiSiteUsers := make(model.UnifiSiteUsers)
for _, site := range h.Config.Sites {
pagination := model.UnifiPagination{Limit: 0, Start: 0}
newUnifiUsers := model.UnifiUsers{}
body, _, err := h.getURI(fmt.Sprintf(ListUserURI, site), pagination)
if err != nil {
return model.UnifiSiteUsers{}, err
}
unifiUsers := model.UnifiUsers{}
err = json.Unmarshal(body, &unifiUsers)
if err != nil {
return model.UnifiSiteUsers{}, err
}
for _, unifiUser := range unifiUsers.Users {
newUnifiUsers.Users = append(newUnifiUsers.Users, unifiUser)
}
unifiSiteUsers[site] = newUnifiUsers
}
return unifiSiteUsers, nil
}
func replaceDeviceAndUserMac(unifiDevices model.UnifiDevices, unifiUsers model.UnifiUsers, msg string) string {
for _, unifiDevice := range unifiDevices.Devices {
if unifiDevice.Mac != "" && unifiDevice.Name != "" {
msg = strings.ReplaceAll(msg, unifiDevice.Mac, unifiDevice.Name)
}
}
for _, unifiUser := range unifiUsers.Users {
if unifiUser.Mac != "" && unifiUser.Hostname != "" {
msg = strings.ReplaceAll(msg, unifiUser.Mac, unifiUser.Hostname)
}
}
return msg
}