mirror of https://git.sr.ht/~ashkeel/strimertul
124 lines
3.6 KiB
Go
124 lines
3.6 KiB
Go
package twitch
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import (
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"fmt"
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"net/http"
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"time"
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"github.com/nicklaw5/helix/v2"
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)
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type AuthResponse struct {
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AccessToken string `json:"access_token"`
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RefreshToken string `json:"refresh_token"`
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ExpiresIn int `json:"expires_in"`
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Scope []string `json:"scope"`
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Time time.Time
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}
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func (c *Client) GetAuthorizationURL() string {
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if c.API == nil {
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return "twitch-not-configured"
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}
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return c.API.GetAuthorizationURL(&helix.AuthorizationURLParams{
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ResponseType: "code",
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Scopes: []string{"bits:read channel:read:subscriptions channel:read:redemptions channel:read:polls channel:read:predictions channel:read:hype_train user_read chat:read chat:edit channel:moderate whispers:read whispers:edit moderator:read:chatters moderator:read:followers user:manage:whispers moderator:manage:announcements"},
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})
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}
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func (c *Client) GetUserClient(forceRefresh bool) (*helix.Client, error) {
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var authResp AuthResponse
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err := c.db.GetJSON(AuthKey, &authResp)
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if err != nil {
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return nil, err
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}
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// Handle token expiration
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if forceRefresh || time.Now().After(authResp.Time.Add(time.Duration(authResp.ExpiresIn)*time.Second)) {
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// Refresh tokens
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refreshed, err := c.API.RefreshUserAccessToken(authResp.RefreshToken)
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if err != nil {
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return nil, err
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}
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authResp.AccessToken = refreshed.Data.AccessToken
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authResp.RefreshToken = refreshed.Data.RefreshToken
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authResp.Time = time.Now().Add(time.Duration(refreshed.Data.ExpiresIn) * time.Second)
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// Save new token pair
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err = c.db.PutJSON(AuthKey, authResp)
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if err != nil {
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return nil, err
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}
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}
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config := c.Config.Get()
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return helix.NewClient(&helix.Options{
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ClientID: config.APIClientID,
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ClientSecret: config.APIClientSecret,
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UserAccessToken: authResp.AccessToken,
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})
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}
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func (c *Client) GetLoggedUser() (helix.User, error) {
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if c.User.ID != "" {
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return c.User, nil
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}
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client, err := c.GetUserClient(false)
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if err != nil {
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return helix.User{}, fmt.Errorf("failed getting API client for user: %w", err)
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}
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users, err := client.GetUsers(&helix.UsersParams{})
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if err != nil {
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return helix.User{}, fmt.Errorf("failed looking up user: %w", err)
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}
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if len(users.Data.Users) < 1 {
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return helix.User{}, fmt.Errorf("no users found")
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}
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c.User = users.Data.Users[0]
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return c.User, nil
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}
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func (c *Client) ServeHTTP(w http.ResponseWriter, req *http.Request) {
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// Get code from params
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code := req.URL.Query().Get("code")
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if code == "" {
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// TODO Nice error page
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http.Error(w, "missing code", http.StatusBadRequest)
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return
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}
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// Exchange code for access/refresh tokens
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userTokenResponse, err := c.API.RequestUserAccessToken(code)
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if err != nil {
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http.Error(w, "failed auth token request: "+err.Error(), http.StatusInternalServerError)
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return
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}
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err = c.db.PutJSON(AuthKey, AuthResponse{
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AccessToken: userTokenResponse.Data.AccessToken,
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RefreshToken: userTokenResponse.Data.RefreshToken,
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ExpiresIn: userTokenResponse.Data.ExpiresIn,
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Scope: userTokenResponse.Data.Scopes,
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Time: time.Now(),
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})
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if err != nil {
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http.Error(w, "error saving auth data for user: "+err.Error(), http.StatusInternalServerError)
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return
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}
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w.Header().Add("Content-Type", "text/html")
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fmt.Fprintf(w, `<html><body><h2>All done, you can close me now!</h2><script>window.close();</script></body></html>`)
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}
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type RefreshResponse struct {
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AccessToken string `json:"access_token"`
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RefreshToken string `json:"refresh_token"`
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TokenType string `json:"token_type"`
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Scope []string `json:"scope"`
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}
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func getRedirectURI(baseurl string) string {
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return fmt.Sprintf("http://%s/twitch/callback", baseurl)
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}
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