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Code Issues Projects Releases Wiki Activity

auth flow working for code

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This commit is contained in:
tsmethurst
2021-03-18 23:27:43 +01:00
parent b6087cc08d
commit 1b11884121
14 changed files with 275 additions and 129 deletions
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110
internal/oauth/oauth.go
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@ -27,6 +27,7 @@ import (
"github.com/go-pg/pg/v10"
"github.com/gotosocial/gotosocial/internal/api"
"github.com/gotosocial/gotosocial/internal/gtsmodel"
"github.com/gotosocial/gotosocial/pkg/mastotypes"
"github.com/gotosocial/oauth2/v4"
"github.com/gotosocial/oauth2/v4/errors"
"github.com/gotosocial/oauth2/v4/manage"
@ -45,16 +46,12 @@ type API struct {
}
type login struct {
Email string `form:"username"`
Email string `form:"username"`
Password string `form:"password"`
}
type authorize struct {
ForceLogin string `form:"force_login,omitempty"`
ResponseType string `form:"response_type"`
ClientID string `form:"client_id"`
RedirectURI string `form:"redirect_uri"`
Scope string `form:"scope,omitempty"`
type code struct {
Code string `form:"code"`
}
func New(ts oauth2.TokenStore, cs oauth2.ClientStore, conn *pg.DB, log *logrus.Logger) *API {
@ -79,6 +76,9 @@ func New(ts oauth2.TokenStore, cs oauth2.ClientStore, conn *pg.DB, log *logrus.L
oauth2.AuthorizationCode,
oauth2.Refreshing,
},
AllowedCodeChallengeMethods: []oauth2.CodeChallengeMethod{
oauth2.CodeChallengePlain,
},
}
srv := server.NewServer(sc, manager)
@ -106,9 +106,13 @@ func New(ts oauth2.TokenStore, cs oauth2.ClientStore, conn *pg.DB, log *logrus.L
func (a *API) AddRoutes(s api.Server) error {
s.AttachHandler(http.MethodGet, "/auth/sign_in", a.SignInGETHandler)
s.AttachHandler(http.MethodPost, "/auth/sign_in", a.SignInPOSTHandler)
s.AttachHandler(http.MethodPost, "/oauth/token", a.TokenHandler)
s.AttachHandler(http.MethodGet, "/oauth/authorize", a.AuthorizeGETHandler)
s.AttachHandler(methodAny, "/auth", a.AuthHandler)
s.AttachHandler(http.MethodPost, "/oauth/authorize", a.AuthorizePOSTHandler)
// s.AttachHandler(http.MethodGet, "/auth", a.AuthGETHandler)
return nil
}
@ -125,7 +129,7 @@ func incorrectPassword() (string, error) {
// The form will then POST to the sign in page, which will be handled by SignInPOSTHandler
func (a *API) SignInGETHandler(c *gin.Context) {
a.log.WithField("func", "SignInGETHandler").Trace("serving sign in html")
c.Data(http.StatusOK, "text/html; charset=utf-8", []byte(signInHTML))
c.HTML(http.StatusOK, "sign-in.tmpl", gin.H{})
}
// SignInPOSTHandler should be served at https://example.org/auth/sign_in.
@ -135,15 +139,16 @@ func (a *API) SignInPOSTHandler(c *gin.Context) {
l := a.log.WithField("func", "SignInPOSTHandler")
s := sessions.Default(c)
form := &login{}
if err := c.ShouldBind(form); err != nil || form.Email == "" || form.Password == "" {
if err := c.ShouldBind(form); err != nil {
c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
return
}
l.Tracef("parsed form: %+v", form)
userid, err := a.ValidatePassword(form.Email, form.Password);
userid, err := a.ValidatePassword(form.Email, form.Password)
if err != nil {
c.String(http.StatusForbidden, err.Error())
return
}
s.Set("username", userid)
@ -151,11 +156,12 @@ func (a *API) SignInPOSTHandler(c *gin.Context) {
c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
return
}
l.Trace("redirecting to auth page")
c.Redirect(http.StatusFound, "/auth")
c.Redirect(http.StatusFound, "/oauth/authorize")
}
// TokenHandler should be served at https://example.org/oauth/token
// TokenHandler should be served as a POST at https://example.org/oauth/token
// The idea here is to serve an oauth access token to a user, which can be used for authorizing against non-public APIs.
// See https://docs.joinmastodon.org/methods/apps/oauth/#obtain-a-token
func (a *API) TokenHandler(c *gin.Context) {
@ -166,50 +172,61 @@ func (a *API) TokenHandler(c *gin.Context) {
}
}
// AuthorizeHandler should be served as GET at https://example.org/oauth/authorize
// AuthorizeGETHandler should be served as GET at https://example.org/oauth/authorize
// The idea here is to present an oauth authorize page to the user, with a button
// that they have to click to accept. See here: https://docs.joinmastodon.org/methods/apps/oauth/#authorize-a-user
func (a *API) AuthorizeGETHandler(c *gin.Context) {
l := a.log.WithField("func", "AuthorizeHandler")
l := a.log.WithField("func", "AuthorizeGETHandler")
s := sessions.Default(c)
form := &authorize{}
if err := c.ShouldBind(form); err != nil {
c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
return
}
l.Tracef("parsed form: %+v", form)
if form.ResponseType == "" || form.ClientID == "" || form.RedirectURI == "" {
c.JSON(http.StatusBadRequest, gin.H{"error": "missing one of: response_type, client_id or redirect_uri"})
return
}
s.Set("force_login", form.ForceLogin)
s.Set("response_type", form.ResponseType)
s.Set("client_id", form.ClientID)
s.Set("redirect_uri", form.RedirectURI)
s.Set("scope", form.Scope)
if err := s.Save(); err != nil {
c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
}
v := s.Get("username")
if username, ok := v.(string); !ok || username == "" {
l.Trace("username was empty, redirecting to sign in page")
l.Trace("username was empty, parsing form then redirecting to sign in page")
form := &mastotypes.OAuthAuthorize{}
if err := c.ShouldBind(form); err != nil {
c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
return
}
l.Tracef("parsed form: %+v", form)
if form.ResponseType == "" || form.ClientID == "" || form.RedirectURI == "" {
c.JSON(http.StatusBadRequest, gin.H{"error": "missing one of: response_type, client_id or redirect_uri"})
return
}
// save these values from the form so we can use them elsewhere in the session
s.Set("force_login", form.ForceLogin)
s.Set("response_type", form.ResponseType)
s.Set("client_id", form.ClientID)
s.Set("redirect_uri", form.RedirectURI)
s.Set("scope", form.Scope)
if err := s.Save(); err != nil {
c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
return
}
c.Redirect(http.StatusFound, "/auth/sign_in")
return
}
l.Trace("serving authorize html")
c.Data(http.StatusOK, "text/html; charset=utf-8", []byte(authorizeHTML))
c.HTML(http.StatusOK, "authorize.tmpl", gin.H{})
}
// AuthHandler should be served at https://example.org/auth
func (a *API) AuthHandler(c *gin.Context) {
l := a.log.WithField("func", "AuthHandler")
// AuthorizePOSTHandler should be served as POST at https://example.org/oauth/authorize
// The idea here is to present an oauth authorize page to the user, with a button
// that they have to click to accept. See here: https://docs.joinmastodon.org/methods/apps/oauth/#authorize-a-user
func (a *API) AuthorizePOSTHandler(c *gin.Context) {
l := a.log.WithField("func", "AuthorizePOSTHandler")
s := sessions.Default(c)
v := s.Get("username")
if username, ok := v.(string); !ok || username == "" {
c.JSON(http.StatusUnauthorized, gin.H{"error": "you are not signed in"})
}
values := url.Values{}
if v, ok := s.Get("force_login").(string); !ok {
@ -277,7 +294,13 @@ func (a *API) AuthHandler(c *gin.Context) {
// so that it can be used in further Oauth flows to generate a token/retreieve an oauth client from the db.
func (a *API) ValidatePassword(email string, password string) (userid string, err error) {
l := a.log.WithField("func", "PasswordAuthorizationHandler")
l.Tracef("email %s password %s", email, password)
// make sure an email/password was provided and bail if not
if email == "" || password == "" {
l.Debug("email or password was not provided")
return incorrectPassword()
}
// first we select the user from the database based on email address, bail if no user found for that email
gtsUser := &gtsmodel.User{}
if err := a.conn.Model(gtsUser).Where("email = ?", email).Select(); err != nil {
@ -297,8 +320,7 @@ func (a *API) ValidatePassword(email string, password string) (userid string, er
return incorrectPassword()
}
// If we've made it this far the email/password is correct so we need the oauth client-id of the user
// This is, conveniently, the same as the user ID, so we can just return it.
// If we've made it this far the email/password is correct, so we can just return the id of the user.
userid = gtsUser.ID
l.Tracef("returning (%s, %s)", userid, err)
return