A fork of the Cocoon PDS but being made more distributed.
implement providing 2FA token on PDS account login screen
Signed-off-by: Will Andrews <did:plc:dadhhalkfcq3gucaq25hjqon>
willdot.net
(Jan 3, 2026, 6:57 AM UTC)
9b2309fd
86972c4f
+68
-17
+56
-9
server/handle_account_signin.go
+56
-9
server/handle_account_signin.go
···
2
2
3
3
import (
4
4
"errors"
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+
"fmt"
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6
"strings"
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+
"time"
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"github.com/bluesky-social/indigo/atproto/syntax"
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"github.com/gorilla/sessions"
···
15
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)
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type OauthSigninInput struct {
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-
Username string `form:"username"`
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-
Password string `form:"password"`
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-
QueryParams string `form:"query_params"`
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+
Username string `form:"username"`
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+
Password string `form:"password"`
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+
AuthFactorToken string `form:"token"`
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QueryParams string `form:"query_params"`
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}
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func (s *Server) getSessionRepoOrErr(e echo.Context) (*models.RepoActor, *sessions.Session, error) {
···
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func getFlashesFromSession(e echo.Context, sess *sessions.Session) map[string]any {
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defer sess.Save(e.Request(), e.Response())
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return map[string]any{
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-
"errors": sess.Flashes("error"),
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"successes": sess.Flashes("success"),
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+
"errors": sess.Flashes("error"),
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"successes": sess.Flashes("success"),
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"tokenrequired": sess.Flashes("tokenrequired"),
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}
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}
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···
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idtype = "email"
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}
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queryParams := ""
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if req.QueryParams != "" {
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queryParams = fmt.Sprintf("?%s", req.QueryParams)
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}
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// TODO: we should make this a helper since we do it for the base create_session as well
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var repo models.RepoActor
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var err error
···
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sess.AddFlash("Something went wrong!", "error")
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}
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sess.Save(e.Request(), e.Response())
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-
return e.Redirect(303, "/account/signin")
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return e.Redirect(303, "/account/signin"+queryParams)
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}
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if err := bcrypt.CompareHashAndPassword([]byte(repo.Password), []byte(req.Password)); err != nil {
···
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sess.AddFlash("Something went wrong!", "error")
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}
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sess.Save(e.Request(), e.Response())
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-
return e.Redirect(303, "/account/signin")
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return e.Redirect(303, "/account/signin"+queryParams)
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}
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+
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// if repo requires auth factor token and one hasn't been provided, return error prompting for one
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+
if repo.EmailAuthFactor && req.AuthFactorToken == "" {
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err = s.createAndSendAuthCode(ctx, repo)
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+
if err != nil {
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sess.AddFlash("Something went wrong!", "error")
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sess.Save(e.Request(), e.Response())
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return e.Redirect(303, "/account/signin"+queryParams)
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}
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+
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sess.AddFlash("requires 2FA token", "tokenrequired")
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sess.Save(e.Request(), e.Response())
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return e.Redirect(303, "/account/signin"+queryParams)
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}
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+
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// if auth factor is required, now check that the one provided is valid
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if repo.EmailAuthFactor {
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if repo.AuthCode == nil || repo.AuthCodeExpiresAt == nil {
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err = s.createAndSendAuthCode(ctx, repo)
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if err != nil {
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sess.AddFlash("Something went wrong!", "error")
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sess.Save(e.Request(), e.Response())
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return e.Redirect(303, "/account/signin"+queryParams)
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}
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+
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sess.AddFlash("requires 2FA token", "tokenrequired")
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sess.Save(e.Request(), e.Response())
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return e.Redirect(303, "/account/signin"+queryParams)
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}
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+
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if *repo.AuthCode != req.AuthFactorToken {
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return helpers.InvalidTokenError(e)
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}
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+
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if time.Now().UTC().After(*repo.AuthCodeExpiresAt) {
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return helpers.ExpiredTokenError(e)
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}
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}
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sess.Options = &sessions.Options{
···
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return err
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}
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-
if req.QueryParams != "" {
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-
return e.Redirect(303, "/oauth/authorize?"+req.QueryParams)
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+
if queryParams != "" {
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+
return e.Redirect(303, "/oauth/authorize"+queryParams)
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} else {
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return e.Redirect(303, "/account")
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}
+8
-8
server/handle_server_create_session.go
+8
-8
server/handle_server_create_session.go
···
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return helpers.ServerError(e, nil)
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}
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+
if err := bcrypt.CompareHashAndPassword([]byte(repo.Password), []byte(req.Password)); err != nil {
91
+
if err != bcrypt.ErrMismatchedHashAndPassword {
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logger.Error("erorr comparing hash and password", "error", err)
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+
}
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return helpers.InputError(e, to.StringPtr("InvalidRequest"))
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}
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+
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// if repo requires auth factor token and one hasn't been provided, return error prompting for one
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if repo.EmailAuthFactor && (req.AuthFactorToken == nil || *req.AuthFactorToken == "") {
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err = s.createAndSendAuthCode(ctx, repo)
···
103
110
if repo.AuthCode == nil || repo.AuthCodeExpiresAt == nil {
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err = s.createAndSendAuthCode(ctx, repo)
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if err != nil {
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-
s.logger.Error("sending auth code", "error", err)
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+
logger.Error("sending auth code", "error", err)
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return helpers.ServerError(e, nil)
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115
}
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116
···
117
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if time.Now().UTC().After(*repo.AuthCodeExpiresAt) {
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return helpers.ExpiredTokenError(e)
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}
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-
}
121
-
122
-
if err := bcrypt.CompareHashAndPassword([]byte(repo.Password), []byte(req.Password)); err != nil {
123
-
if err != bcrypt.ErrMismatchedHashAndPassword {
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-
logger.Error("erorr comparing hash and password", "error", err)
125
-
}
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-
return helpers.InputError(e, to.StringPtr("InvalidRequest"))
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}
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sess, err := s.createSession(ctx, &repo.Repo)
+4
server/templates/signin.html
+4
server/templates/signin.html
···
26
26
type="password"
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placeholder="Password"
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/>
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+
{{ if .flashes.tokenrequired }}
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+
<br />
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<input name="token" id="token" placeholder="Enter your 2FA token" />
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{{ end }}
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<input name="query_params" type="hidden" value="{{ .QueryParams }}" />
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<button class="primary" type="submit" value="Login">Login</button>
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</form>