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135 lines
2.4 KiB
Go
135 lines
2.4 KiB
Go
package main
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// Small generic oauth authentication server to retrieve oauth tokens
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// from mastodon instances.
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import (
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"encoding/json"
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"fmt"
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"net/http"
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"os"
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"github.com/gorilla/websocket"
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"github.com/labstack/echo"
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"github.com/labstack/echo/middleware"
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"github.com/labstack/gommon/log"
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"go.etcd.io/bbolt"
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)
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var (
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upgrader = websocket.Upgrader{}
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)
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type Instance struct {
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Secret string `json:"client_secret"`
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ID string `json:"client_id"`
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}
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type App struct {
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AuthMap *AuthenticationMap
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Logger *echo.Logger
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DB *bbolt.DB
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}
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func (a *App) authRequestWebSocket(c echo.Context) error {
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ws, err := upgrader.Upgrade(c.Response(), c.Request(), nil)
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if err != nil {
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return err
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}
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client := &AuthRequestClient{
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conn: ws,
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app: a,
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}
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req, err := client.ReceiveRequest()
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if err != nil {
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return err
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}
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(*a.Logger).Info("Queueing AuthRequest")
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a.AuthMap.QueueRequest(req)
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return nil
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}
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func (a *App) authRequestRedirect(c echo.Context) error {
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requestId := c.Param("request_id")
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authRequest := a.AuthMap.GetRequestByID(requestId)
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if authRequest == nil {
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return c.String(http.StatusNotFound, "No authentication request found by this ID")
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}
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var instance *Instance
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a.DB.View(func(t *bbolt.Tx) error {
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instanceJson := t.Bucket([]byte("instances")).Get([]byte(authRequest.Instance))
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if instanceJson == nil {
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instance = nil
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return nil
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}
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instance = &Instance{}
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err := json.Unmarshal(instanceJson, instance)
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return err
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})
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return c.String(http.StatusOK, "BLAAT")
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//return c.Redirect(http.StatusTemporaryRedirect, )
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}
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func main() {
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arguments := os.Args[1:]
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if len(arguments) != 2 {
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fmt.Fprintln(os.Stderr, "Expected 2 command line argumens, but got : ", len(arguments))
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fmt.Fprintln(os.Stderr, "Usage: generic-mastodon-authenticator APP_NAME DB_PATH")
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os.Exit(1)
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}
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database := arguments[1]
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db, err := bbolt.Open(database, 0600, nil)
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if err != nil {
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log.Fatal(err)
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}
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db.Update(func(t *bbolt.Tx) error {
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_, err := t.CreateBucketIfNotExists([]byte("instances"))
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return err
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})
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e := echo.New()
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e.Use(middleware.Logger())
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e.Use(middleware.Recover())
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e.Static("/", "../public")
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e.Logger.SetLevel(log.INFO)
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a := &App{
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Logger: &e.Logger,
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DB: db,
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}
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m := &AuthenticationMap{
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app: a,
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}
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m.Init()
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a.AuthMap = m
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e.GET("/ws", a.authRequestWebSocket)
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e.GET("/auth/:request_id", a.authRequestRedirect)
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e.Logger.Fatal(e.Start(":1323"))
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}
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