chunking away at it

internal/db/db.go

@@ -21,6 +21,7 @@ package db
 import (
 	"context"
 	"fmt"
+	"net"
 	"strings"
 
 	"github.com/go-fed/activity/pub"
@@ -145,6 +146,10 @@ type DB interface {
 	// C) something went wrong in the db
 	IsEmailAvailable(email string) error
 
+	// NewSignup creates a new user in the database with the given parameters, with an *unconfirmed* email address.
+	// By the time this function is called, it should be assumed that all the parameters have passed validation!
+	NewSignup(username string, reason string, requireApproval bool, email string, password string, signUpIP net.IP, locale string) (*model.User, error)
+
 	/*
 		USEFUL CONVERSION FUNCTIONS
 	*/

internal/db/model/account.go

@@ -23,6 +23,7 @@
 package model
 
 import (
+	"crypto/rsa"
 	"net/url"
 	"time"
 )
@@ -82,6 +83,8 @@ type Account struct {
 	SubscriptionExpiresAt time.Time `pg:"type:timestamp"`
 	// Does this account identify itself as a bot?
 	Bot bool
+	// What reason was given for signing up when this account was created?
+	Reason string
 
 	/*
 		PRIVACY SETTINGS
@@ -123,9 +126,9 @@ type Account struct {
 
 	Secret string
 	// Privatekey for validating activitypub requests, will obviously only be defined for local accounts
-	PrivateKey string
+	PrivateKey *rsa.PrivateKey
 	// Publickey for encoding activitypub requests, will be defined for both local and remote accounts
-	PublicKey string
+	PublicKey *rsa.PublicKey
 
 	/*
 		ADMIN FIELDS

internal/db/model/domainblock.go

@@ -35,13 +35,13 @@ type DomainBlock struct {
 	// Account ID of the creator of this block
 	CreatedByAccountID string `pg:",notnull"`
 	// TODO: define this
-	Severity           int
+	Severity int
 	// Reject media from this domain?
-	RejectMedia        bool
+	RejectMedia bool
 	// Reject reports from this domain?
-	RejectReports      bool
+	RejectReports bool
 	// Private comment on this block, viewable to admins
-	PrivateComment     string
+	PrivateComment string
 	// Public comment on this block, viewable (optionally) by everyone
-	PublicComment      string
+	PublicComment string
 }

internal/db/pg.go

@@ -20,8 +20,11 @@ package db
 
 import (
 	"context"
+	"crypto/rand"
+	"crypto/rsa"
 	"errors"
 	"fmt"
+	"net"
 	"net/mail"
 	"regexp"
 	"strings"
@@ -35,6 +38,7 @@ import (
 	"github.com/gotosocial/gotosocial/internal/db/model"
 	"github.com/gotosocial/gotosocial/pkg/mastotypes"
 	"github.com/sirupsen/logrus"
+	"golang.org/x/crypto/bcrypt"
 )
 
 // postgresService satisfies the DB interface
@@ -305,7 +309,6 @@ func (ps *postgresService) GetAccountByUserID(userID string, account *model.Acco
 		return err
 	}
 	if err := ps.conn.Model(account).Where("id = ?", user.AccountID).Select(); err != nil {
-		fmt.Println(account)
 		if err == pg.ErrNoRows {
 			return ErrNoEntries{}
 		}
@@ -412,6 +415,43 @@ func (ps *postgresService) IsEmailAvailable(email string) error {
 	return nil
 }
 
+func (ps *postgresService) NewSignup(username string, reason string, requireApproval bool, email string, password string, signUpIP net.IP, locale string) (*model.User, error) {
+	key, err := rsa.GenerateKey(rand.Reader, 2048)
+	if err != nil {
+		ps.log.Errorf("error creating new rsa key: %s", err)
+		return nil, err
+	}
+
+	a := &model.Account{
+		Username:    username,
+		DisplayName: username,
+		Reason:      reason,
+		PrivateKey:  key,
+		PublicKey:   &key.PublicKey,
+		ActorType:   "Person",
+	}
+	if _, err = ps.conn.Model(a).Insert(); err != nil {
+		return nil, err
+	}
+
+	pw, err := bcrypt.GenerateFromPassword([]byte(password), bcrypt.DefaultCost)
+	if err != nil {
+		return nil, fmt.Errorf("error hashing password: %s", err)
+	}
+	u := &model.User{
+		AccountID:         a.ID,
+		EncryptedPassword: string(pw),
+		SignUpIP:          signUpIP,
+		Locale:            locale,
+		UnconfirmedEmail:  email,
+	}
+	if _, err = ps.conn.Model(u).Insert(); err != nil {
+		return nil, err
+	}
+
+	return u, nil
+}
+
 /*
 	CONVERSION FUNCTIONS
 */
@@ -433,7 +473,6 @@ func (ps *postgresService) AccountToMastoSensitive(a *model.Account) (*mastotype
 		}
 		fields = append(fields, mField)
 	}
-	fmt.Printf("fields: %+v", fields)
 
 	// count followers
 	followers := []model.Follow{}

internal/db/pg_test.go

@@ -0,0 +1,21 @@
+/*
+   GoToSocial
+   Copyright (C) 2021 GoToSocial Authors admin@gotosocial.org
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU Affero General Public License as published by
+   the Free Software Foundation, either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU Affero General Public License for more details.
+
+   You should have received a copy of the GNU Affero General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+package db
+
+// TODO: write tests for postgres

internal/db/pgfed.go

@@ -1,3 +1,21 @@
+/*
+   GoToSocial
+   Copyright (C) 2021 GoToSocial Authors admin@gotosocial.org
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU Affero General Public License as published by
+   the Free Software Foundation, either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU Affero General Public License for more details.
+
+   You should have received a copy of the GNU Affero General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
 package db
 
 import (

internal/db/pgfed_test.go

@@ -0,0 +1,21 @@
+/*
+   GoToSocial
+   Copyright (C) 2021 GoToSocial Authors admin@gotosocial.org
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU Affero General Public License as published by
+   the Free Software Foundation, either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU Affero General Public License for more details.
+
+   You should have received a copy of the GNU Affero General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+package db
+
+// TODO: write tests for pgfed

internal/module/account/account.go

@@ -19,6 +19,8 @@
 package account
 
 import (
+	"fmt"
+	"net"
 	"net/http"
 
 	"github.com/gin-gonic/gin"
@@ -26,9 +28,10 @@ import (
 	"github.com/gotosocial/gotosocial/internal/db"
 	"github.com/gotosocial/gotosocial/internal/db/model"
 	"github.com/gotosocial/gotosocial/internal/module"
-	"github.com/gotosocial/gotosocial/internal/module/oauth"
+	"github.com/gotosocial/gotosocial/internal/oauth"
 	"github.com/gotosocial/gotosocial/internal/router"
 	"github.com/gotosocial/gotosocial/pkg/mastotypes"
+	"github.com/gotosocial/oauth2/v4"
 	"github.com/sirupsen/logrus"
 )
 
@@ -39,9 +42,10 @@ const (
 )
 
 type accountModule struct {
-	config *config.Config
+	config      *config.Config
-	db     db.DB
+	db          db.DB
-	log    *logrus.Logger
+	oauthServer oauth.Server
+	log         *logrus.Logger
 }
 
 // New returns a new account module
@@ -60,15 +64,15 @@ func (m *accountModule) Route(r router.Router) error {
 	return nil
 }
 
+// accountCreatePOSTHandler handles create account requests, validates them,
+// and puts them in the database if they're valid.
+// It should be served as a POST at /api/v1/accounts
 func (m *accountModule) accountCreatePOSTHandler(c *gin.Context) {
-	l := m.log.WithField("func", "AccountCreatePOSTHandler")
+	l := m.log.WithField("func", "accountCreatePOSTHandler")
-	// TODO: check whether a valid app token has been presented!!
+	authed, err := oauth.GetAuthed(c)
-	// See: https://docs.joinmastodon.org/methods/accounts/
+	if err != nil {
-
+		l.Debugf("couldn't auth: %s", err)
-	l.Trace("checking if registration is open")
+		c.JSON(http.StatusForbidden, gin.H{"error": err.Error()})
-	if !m.config.AccountsConfig.OpenRegistration {
-		l.Debug("account registration is closed, returning error to client")
-		c.JSON(http.StatusUnauthorized, gin.H{"error": "account registration is closed"})
 		return
 	}
 
@@ -81,15 +85,34 @@ func (m *accountModule) accountCreatePOSTHandler(c *gin.Context) {
 	}
 
 	l.Tracef("validating form %+v", form)
-	if err := validateCreateAccount(form, m.config.AccountsConfig.ReasonRequired, m.db); err != nil {
+	if err := validateCreateAccount(form, m.config.AccountsConfig, m.db); err != nil {
 		l.Debugf("error validating form: %s", err)
 		c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
 		return
 	}
+
+	clientIP := c.ClientIP()
+	l.Tracef("attempting to parse client ip address %s", clientIP)
+	signUpIP := net.ParseIP(clientIP)
+	if signUpIP == nil {
+		l.Debugf("error validating sign up ip address %s", clientIP)
+		c.JSON(http.StatusBadRequest, gin.H{"error": "ip address could not be parsed from request"})
+		return
+	}
+
+	ti, err := m.accountCreate(form, signUpIP, authed.Token, authed.Application)
+	if err != nil {
+		l.Errorf("internal server error while creating new account: %s", err)
+		c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
+		return
+	}
+
+	c.JSON(http.StatusOK, ti)
 }
 
 // accountVerifyGETHandler serves a user's account details to them IF they reached this
 // handler while in possession of a valid token, according to the oauth middleware.
+// It should be served as a GET at /api/v1/accounts/verify_credentials
 func (m *accountModule) accountVerifyGETHandler(c *gin.Context) {
 	l := m.log.WithField("func", "AccountVerifyGETHandler")
 
@@ -120,3 +143,39 @@ func (m *accountModule) accountVerifyGETHandler(c *gin.Context) {
 	l.Tracef("conversion successful, returning OK and mastosensitive account %+v", acctSensitive)
 	c.JSON(http.StatusOK, acctSensitive)
 }
+
+/*
+	HELPER FUNCTIONS
+*/
+
+// accountCreate does the dirty work of making an account and user in the database.
+// It then returns a token to the caller, for use with the new account, as per the
+// spec here: https://docs.joinmastodon.org/methods/accounts/
+func (m *accountModule) accountCreate(form *mastotypes.AccountCreateRequest, signUpIP net.IP, token oauth2.TokenInfo, app *model.Application) (*mastotypes.Token, error) {
+	l := m.log.WithField("func", "accountCreate")
+
+	// don't store a reason if we don't require one
+	reason := form.Reason
+	if !m.config.AccountsConfig.ReasonRequired {
+		reason = ""
+	}
+
+	l.Trace("creating new username and account")
+	user, err := m.db.NewSignup(form.Username, reason, m.config.AccountsConfig.RequireApproval, form.Email, form.Password, signUpIP, form.Locale)
+	if err != nil {
+		return nil, fmt.Errorf("error creating new signup in the database: %s", err)
+	}
+
+	l.Tracef("generating a token for user %s with account %s and application %s", user.ID, user.AccountID, app.ID)
+	ti, err := m.oauthServer.GenerateUserAccessToken(token, app.ClientSecret, user.ID)
+	if err != nil {
+		return nil, fmt.Errorf("error creating new access token for user %s: %s", user.ID, err)
+	}
+
+	return &mastotypes.Token{
+		AccessToken: ti.GetCode(),
+		TokenType:   "Bearer",
+		Scope:       ti.GetScope(),
+		CreatedAt:   ti.GetCodeCreateAt().Unix(),
+	}, nil
+}

internal/module/account/account_test.go

@@ -20,34 +20,33 @@ package account
 
 import (
 	"context"
-	"fmt"
+	"net/http/httptest"
-	"net/url"
 	"testing"
-	"time"
 
 	"github.com/gin-gonic/gin"
-	"github.com/google/uuid"
 	"github.com/gotosocial/gotosocial/internal/config"
 	"github.com/gotosocial/gotosocial/internal/db"
 	"github.com/gotosocial/gotosocial/internal/db/model"
-	"github.com/gotosocial/gotosocial/internal/module/oauth"
-	"github.com/gotosocial/gotosocial/internal/router"
 	"github.com/sirupsen/logrus"
 	"github.com/stretchr/testify/suite"
-	"golang.org/x/crypto/bcrypt"
 )
 
 type AccountTestSuite struct {
 	suite.Suite
-	db                db.DB
+	log               *logrus.Logger
 	testAccountLocal  *model.Account
 	testAccountRemote *model.Account
 	testUser          *model.User
-	config            *config.Config
+	db                db.DB
+	accountModule     *accountModule
 }
 
 // SetupSuite sets some variables on the suite that we can use as consts (more or less) throughout
 func (suite *AccountTestSuite) SetupSuite() {
+	log := logrus.New()
+	log.SetLevel(logrus.TraceLevel)
+	suite.log = log
+
 	c := config.Empty()
 	c.DBConfig = &config.DBConfig{
 		Type:            "postgres",
@@ -58,118 +57,126 @@ func (suite *AccountTestSuite) SetupSuite() {
 		Database:        "postgres",
 		ApplicationName: "gotosocial",
 	}
-	suite.config = c
 
-	encryptedPassword, err := bcrypt.GenerateFromPassword([]byte("password"), bcrypt.DefaultCost)
+	database, err := db.New(context.Background(), c, log)
 	if err != nil {
-		logrus.Panicf("error encrypting user pass: %s", err)
+		suite.FailNow(err.Error())
+	}
+	suite.db = database
+
+	suite.accountModule = &accountModule{
+		config: c,
+		db:     database,
+		log:    log,
 	}
 
-	localAvatar, err := url.Parse("https://localhost:8080/media/aaaaaaaaa.png")
+	// encryptedPassword, err := bcrypt.GenerateFromPassword([]byte("password"), bcrypt.DefaultCost)
-	if err != nil {
+	// if err != nil {
-		logrus.Panicf("error parsing localavatar url: %s", err)
+	// 	logrus.Panicf("error encrypting user pass: %s", err)
-	}
+	// }
-	localHeader, err := url.Parse("https://localhost:8080/media/ffffffffff.png")
-	if err != nil {
-		logrus.Panicf("error parsing localheader url: %s", err)
-	}
 
-	acctID := uuid.NewString()
+	// localAvatar, err := url.Parse("https://localhost:8080/media/aaaaaaaaa.png")
-	suite.testAccountLocal = &model.Account{
+	// if err != nil {
-		ID:              acctID,
+	// 	logrus.Panicf("error parsing localavatar url: %s", err)
-		Username:        "local_account_of_some_kind",
+	// }
-		AvatarRemoteURL: localAvatar,
+	// localHeader, err := url.Parse("https://localhost:8080/media/ffffffffff.png")
-		HeaderRemoteURL: localHeader,
+	// if err != nil {
-		DisplayName:     "michael caine",
+	// 	logrus.Panicf("error parsing localheader url: %s", err)
-		Fields: []model.Field{
+	// }
-			{
-				Name:  "come and ave a go",
-				Value: "if you think you're hard enough",
-			},
-			{
-				Name:       "website",
-				Value:      "https://imdb.com",
-				VerifiedAt: time.Now(),
-			},
-		},
-		Note:         "My name is Michael Caine and i'm a local user.",
-		Discoverable: true,
-	}
 
-	avatarURL, err := url.Parse("http://example.org/accounts/avatars/000/207/122/original/089-1098-09.png")
+	// acctID := uuid.NewString()
-	if err != nil {
+	// suite.testAccountLocal = &model.Account{
-		logrus.Panicf("error parsing avatarURL: %s", err)
+	// 	ID:              acctID,
-	}
+	// 	Username:        "local_account_of_some_kind",
+	// 	AvatarRemoteURL: localAvatar,
+	// 	HeaderRemoteURL: localHeader,
+	// 	DisplayName:     "michael caine",
+	// 	Fields: []model.Field{
+	// 		{
+	// 			Name:  "come and ave a go",
+	// 			Value: "if you think you're hard enough",
+	// 		},
+	// 		{
+	// 			Name:       "website",
+	// 			Value:      "https://imdb.com",
+	// 			VerifiedAt: time.Now(),
+	// 		},
+	// 	},
+	// 	Note:         "My name is Michael Caine and i'm a local user.",
+	// 	Discoverable: true,
+	// }
 
-	headerURL, err := url.Parse("http://example.org/accounts/headers/000/207/122/original/111111111111.png")
+	// avatarURL, err := url.Parse("http://example.org/accounts/avatars/000/207/122/original/089-1098-09.png")
-	if err != nil {
+	// if err != nil {
-		logrus.Panicf("error parsing avatarURL: %s", err)
+	// 	logrus.Panicf("error parsing avatarURL: %s", err)
-	}
+	// }
-	suite.testAccountRemote = &model.Account{
-		ID:       uuid.NewString(),
-		Username: "neato_bombeato",
-		Domain:   "example.org",
 
-		AvatarFileName:    "avatar.png",
+	// headerURL, err := url.Parse("http://example.org/accounts/headers/000/207/122/original/111111111111.png")
-		AvatarContentType: "image/png",
+	// if err != nil {
-		AvatarFileSize:    1024,
+	// 	logrus.Panicf("error parsing avatarURL: %s", err)
-		AvatarUpdatedAt:   time.Now(),
+	// }
-		AvatarRemoteURL:   avatarURL,
+	// suite.testAccountRemote = &model.Account{
+	// 	ID:       uuid.NewString(),
+	// 	Username: "neato_bombeato",
+	// 	Domain:   "example.org",
 
-		HeaderFileName:    "avatar.png",
+	// 	AvatarFileName:    "avatar.png",
-		HeaderContentType: "image/png",
+	// 	AvatarContentType: "image/png",
-		HeaderFileSize:    1024,
+	// 	AvatarFileSize:    1024,
-		HeaderUpdatedAt:   time.Now(),
+	// 	AvatarUpdatedAt:   time.Now(),
-		HeaderRemoteURL:   headerURL,
+	// 	AvatarRemoteURL:   avatarURL,
 
-		DisplayName: "one cool dude 420",
+	// 	HeaderFileName:    "avatar.png",
-		Fields: []model.Field{
+	// 	HeaderContentType: "image/png",
-			{
+	// 	HeaderFileSize:    1024,
-				Name:  "pronouns",
+	// 	HeaderUpdatedAt:   time.Now(),
-				Value: "he/they",
+	// 	HeaderRemoteURL:   headerURL,
-			},
+
-			{
+	// 	DisplayName: "one cool dude 420",
-				Name:       "website",
+	// 	Fields: []model.Field{
-				Value:      "https://imcool.edu",
+	// 		{
-				VerifiedAt: time.Now(),
+	// 			Name:  "pronouns",
-			},
+	// 			Value: "he/they",
-		},
+	// 		},
-		Note:                  "<p>I'm cool as heck!</p>",
+	// 		{
-		Discoverable:          true,
+	// 			Name:       "website",
-		URI:                   "https://example.org/users/neato_bombeato",
+	// 			Value:      "https://imcool.edu",
-		URL:                   "https://example.org/@neato_bombeato",
+	// 			VerifiedAt: time.Now(),
-		LastWebfingeredAt:     time.Now(),
+	// 		},
-		InboxURL:              "https://example.org/users/neato_bombeato/inbox",
+	// 	},
-		OutboxURL:             "https://example.org/users/neato_bombeato/outbox",
+	// 	Note:                  "<p>I'm cool as heck!</p>",
-		SharedInboxURL:        "https://example.org/inbox",
+	// 	Discoverable:          true,
-		FollowersURL:          "https://example.org/users/neato_bombeato/followers",
+	// 	URI:                   "https://example.org/users/neato_bombeato",
-		FeaturedCollectionURL: "https://example.org/users/neato_bombeato/collections/featured",
+	// 	URL:                   "https://example.org/@neato_bombeato",
-	}
+	// 	LastWebfingeredAt:     time.Now(),
-	suite.testUser = &model.User{
+	// 	InboxURL:              "https://example.org/users/neato_bombeato/inbox",
-		ID:                uuid.NewString(),
+	// 	OutboxURL:             "https://example.org/users/neato_bombeato/outbox",
-		EncryptedPassword: string(encryptedPassword),
+	// 	SharedInboxURL:        "https://example.org/inbox",
-		Email:             "user@example.org",
+	// 	FollowersURL:          "https://example.org/users/neato_bombeato/followers",
-		AccountID:         acctID,
+	// 	FeaturedCollectionURL: "https://example.org/users/neato_bombeato/collections/featured",
+	// }
+	// suite.testUser = &model.User{
+	// 	ID:                uuid.NewString(),
+	// 	EncryptedPassword: string(encryptedPassword),
+	// 	Email:             "user@example.org",
+	// 	AccountID:         acctID,
+	// }
+}
+
+func (suite *AccountTestSuite) TearDownSuite() {
+	if err := suite.db.Stop(context.Background()); err != nil {
+		logrus.Panicf("error closing db connection: %s", err)
 	}
 }
 
-// SetupTest creates a postgres connection and creates the oauth_clients table before each test
+// SetupTest creates a db connection and creates necessary tables before each test
 func (suite *AccountTestSuite) SetupTest() {
-
-	log := logrus.New()
-	log.SetLevel(logrus.TraceLevel)
-	db, err := db.New(context.Background(), suite.config, log)
-	if err != nil {
-		logrus.Panicf("error creating database connection: %s", err)
-	}
-
-	suite.db = db
-
 	models := []interface{}{
 		&model.User{},
 		&model.Account{},
 		&model.Follow{},
 		&model.Status{},
+		&model.Application{},
 	}
 
 	for _, m := range models {
@@ -177,70 +184,31 @@ func (suite *AccountTestSuite) SetupTest() {
 			logrus.Panicf("db connection error: %s", err)
 		}
 	}
-
-	if err := suite.db.Put(suite.testAccountLocal); err != nil {
-		logrus.Panicf("could not insert test account into db: %s", err)
-	}
-	if err := suite.db.Put(suite.testUser); err != nil {
-		logrus.Panicf("could not insert test user into db: %s", err)
-	}
-
 }
 
-// TearDownTest drops the oauth_clients table and closes the pg connection after each test
+// TearDownTest drops tables to make sure there's no data in the db
 func (suite *AccountTestSuite) TearDownTest() {
 	models := []interface{}{
 		&model.User{},
 		&model.Account{},
 		&model.Follow{},
 		&model.Status{},
+		&model.Application{},
 	}
 	for _, m := range models {
 		if err := suite.db.DropTable(m); err != nil {
 			logrus.Panicf("error dropping table: %s", err)
 		}
 	}
-	if err := suite.db.Stop(context.Background()); err != nil {
-		logrus.Panicf("error closing db connection: %s", err)
-	}
-	suite.db = nil
 }
 
-func (suite *AccountTestSuite) TestAPIInitialize() {
+func (suite *AccountTestSuite) TestAccountCreatePOSTHandler() {
-	log := logrus.New()
+	// TODO: figure out how to test this properly
-	log.SetLevel(logrus.TraceLevel)
+	recorder := httptest.NewRecorder()
-
+	recorder.Header().Set("X-Forwarded-For", "127.0.0.1")
-	r, err := router.New(suite.config, log)
+	ctx, _ := gin.CreateTestContext(recorder)
-	if err != nil {
+	// ctx.Set()
-		suite.FailNow(fmt.Sprintf("error creating router: %s", err))
+	suite.accountModule.accountCreatePOSTHandler(ctx)
-	}
-
-	r.AttachMiddleware(func(c *gin.Context) {
-		account := &model.Account{}
-		if err := suite.db.GetAccountByUserID(suite.testUser.ID, account); err != nil || account == nil {
-			suite.T().Log(err)
-			suite.FailNowf("no account found for user %s, continuing with unauthenticated request: %+v", "", suite.testUser.ID, account)
-			fmt.Println(account)
-			return
-		}
-
-		c.Set(oauth.SessionAuthorizedAccount, account)
-		c.Set(oauth.SessionAuthorizedUser, suite.testUser.ID)
-	})
-
-	acct := New(suite.config, suite.db, log)
-	if err := acct.Route(r); err != nil {
-		suite.FailNow(fmt.Sprintf("error mapping routes onto router: %s", err))
-	}
-
-	r.Start()
-	defer func() {
-		if err := r.Stop(context.Background()); err != nil {
-			panic(fmt.Errorf("error stopping router: %s", err))
-		}
-	}()
-	time.Sleep(10 * time.Second)
-
 }
 
 func TestAccountTestSuite(t *testing.T) {

internal/module/account/validation.go

@@ -21,12 +21,17 @@ package account
 import (
 	"errors"
 
+	"github.com/gotosocial/gotosocial/internal/config"
 	"github.com/gotosocial/gotosocial/internal/db"
 	"github.com/gotosocial/gotosocial/internal/util"
 	"github.com/gotosocial/gotosocial/pkg/mastotypes"
 )
 
-func validateCreateAccount(form *mastotypes.AccountCreateRequest, reasonRequired bool, database db.DB) error {
+func validateCreateAccount(form *mastotypes.AccountCreateRequest, c *config.AccountsConfig, database db.DB) error {
+	if !c.OpenRegistration {
+		return errors.New("registration is not open for this server")
+	}
+
 	if err := util.ValidateSignUpUsername(form.Username); err != nil {
 		return err
 	}
@@ -47,7 +52,7 @@ func validateCreateAccount(form *mastotypes.AccountCreateRequest, reasonRequired
 		return err
 	}
 
-	if err := util.ValidateSignUpReason(form.Reason, reasonRequired); err != nil {
+	if err := util.ValidateSignUpReason(form.Reason, c.ReasonRequired); err != nil {
 		return err
 	}
 

internal/module/app/app.go

@@ -0,0 +1,140 @@
+/*
+   GoToSocial
+   Copyright (C) 2021 GoToSocial Authors admin@gotosocial.org
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU Affero General Public License as published by
+   the Free Software Foundation, either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU Affero General Public License for more details.
+
+   You should have received a copy of the GNU Affero General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+package app
+
+import (
+	"fmt"
+	"net/http"
+
+	"github.com/gin-gonic/gin"
+	"github.com/google/uuid"
+	"github.com/gotosocial/gotosocial/internal/db"
+	"github.com/gotosocial/gotosocial/internal/db/model"
+	"github.com/gotosocial/gotosocial/internal/module"
+	"github.com/gotosocial/gotosocial/internal/oauth"
+	"github.com/gotosocial/gotosocial/internal/router"
+	"github.com/gotosocial/gotosocial/pkg/mastotypes"
+	"github.com/sirupsen/logrus"
+)
+
+const appsPath = "/api/v1/apps"
+
+type appModule struct {
+	server oauth.Server
+	db     db.DB
+	log    *logrus.Logger
+}
+
+// New returns a new auth module
+func New(srv oauth.Server, db db.DB, log *logrus.Logger) module.ClientAPIModule {
+	return &appModule{
+		server: srv,
+		db:     db,
+		log:    log,
+	}
+}
+
+// Route satisfies the RESTAPIModule interface
+func (m *appModule) Route(s router.Router) error {
+	s.AttachHandler(http.MethodPost, appsPath, m.appsPOSTHandler)
+	return nil
+}
+
+// appsPOSTHandler should be served at https://example.org/api/v1/apps
+// It is equivalent to: https://docs.joinmastodon.org/methods/apps/
+func (m *appModule) appsPOSTHandler(c *gin.Context) {
+	l := m.log.WithField("func", "AppsPOSTHandler")
+	l.Trace("entering AppsPOSTHandler")
+
+	form := &mastotypes.ApplicationPOSTRequest{}
+	if err := c.ShouldBind(form); err != nil {
+		c.JSON(http.StatusUnprocessableEntity, gin.H{"error": err.Error()})
+		return
+	}
+
+	// permitted length for most fields
+	permittedLength := 64
+	// redirect can be a bit bigger because we probably need to encode data in the redirect uri
+	permittedRedirect := 256
+
+	// check lengths of fields before proceeding so the user can't spam huge entries into the database
+	if len(form.ClientName) > permittedLength {
+		c.JSON(http.StatusBadRequest, gin.H{"error": fmt.Sprintf("client_name must be less than %d bytes", permittedLength)})
+		return
+	}
+	if len(form.Website) > permittedLength {
+		c.JSON(http.StatusBadRequest, gin.H{"error": fmt.Sprintf("website must be less than %d bytes", permittedLength)})
+		return
+	}
+	if len(form.RedirectURIs) > permittedRedirect {
+		c.JSON(http.StatusBadRequest, gin.H{"error": fmt.Sprintf("redirect_uris must be less than %d bytes", permittedRedirect)})
+		return
+	}
+	if len(form.Scopes) > permittedLength {
+		c.JSON(http.StatusBadRequest, gin.H{"error": fmt.Sprintf("scopes must be less than %d bytes", permittedLength)})
+		return
+	}
+
+	// set default 'read' for scopes if it's not set, this follows the default of the mastodon api https://docs.joinmastodon.org/methods/apps/
+	var scopes string
+	if form.Scopes == "" {
+		scopes = "read"
+	} else {
+		scopes = form.Scopes
+	}
+
+	// generate new IDs for this application and its associated client
+	clientID := uuid.NewString()
+	clientSecret := uuid.NewString()
+	vapidKey := uuid.NewString()
+
+	// generate the application to put in the database
+	app := &model.Application{
+		Name:         form.ClientName,
+		Website:      form.Website,
+		RedirectURI:  form.RedirectURIs,
+		ClientID:     clientID,
+		ClientSecret: clientSecret,
+		Scopes:       scopes,
+		VapidKey:     vapidKey,
+	}
+
+	// chuck it in the db
+	if err := m.db.Put(app); err != nil {
+		c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
+		return
+	}
+
+	// now we need to model an oauth client from the application that the oauth library can use
+	oc := &oauth.Client{
+		ID:     clientID,
+		Secret: clientSecret,
+		Domain: form.RedirectURIs,
+		UserID: "", // This client isn't yet associated with a specific user,  it's just an app client right now
+	}
+
+	// chuck it in the db
+	if err := m.db.Put(oc); err != nil {
+		c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
+		return
+	}
+
+	// done, return the new app information per the spec here: https://docs.joinmastodon.org/methods/apps/
+	c.JSON(http.StatusOK, app.ToMasto())
+}

internal/module/app/app_test.go

@@ -0,0 +1,21 @@
+/*
+   GoToSocial
+   Copyright (C) 2021 GoToSocial Authors admin@gotosocial.org
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU Affero General Public License as published by
+   the Free Software Foundation, either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU Affero General Public License for more details.
+
+   You should have received a copy of the GNU Affero General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+package app
+
+// TODO: write tests

internal/module/auth/README.md

@@ -1,4 +1,4 @@
-# oauth
+# auth
 
 This package provides uses the [GoToSocial oauth2](https://github.com/gotosocial/oauth2) module (forked from [go-oauth2](https://github.com/go-oauth2/oauth2)) to provide [oauth2](https://www.oauth.com/) functionality to the GoToSocial client API.
 

internal/module/auth/auth.go

@@ -16,57 +16,42 @@
    along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
 
-// Package oauth is a module that provides oauth functionality to a router.
+// Package auth is a module that provides oauth functionality to a router.
 // It adds the following paths:
-//    /api/v1/apps
 //    /auth/sign_in
 //    /oauth/token
 //    /oauth/authorize
 // It also includes the oauthTokenMiddleware, which can be attached to a router to authenticate every request by Bearer token.
-package oauth
+package auth
 
 import (
+	"errors"
 	"fmt"
 	"net/http"
 	"net/url"
 
 	"github.com/gin-contrib/sessions"
 	"github.com/gin-gonic/gin"
-	"github.com/google/uuid"
 	"github.com/gotosocial/gotosocial/internal/db"
 	"github.com/gotosocial/gotosocial/internal/db/model"
 	"github.com/gotosocial/gotosocial/internal/module"
+	"github.com/gotosocial/gotosocial/internal/oauth"
 	"github.com/gotosocial/gotosocial/internal/router"
 	"github.com/gotosocial/gotosocial/pkg/mastotypes"
-	"github.com/gotosocial/oauth2/v4"
-	"github.com/gotosocial/oauth2/v4/errors"
-	"github.com/gotosocial/oauth2/v4/manage"
-	"github.com/gotosocial/oauth2/v4/server"
 	"github.com/sirupsen/logrus"
 	"golang.org/x/crypto/bcrypt"
 )
 
 const (
-	appsPath           = "/api/v1/apps"
 	authSignInPath     = "/auth/sign_in"
 	oauthTokenPath     = "/oauth/token"
 	oauthAuthorizePath = "/oauth/authorize"
-	// SessionAuthorizedUser is the key set in the gin context for the id of
-	// a User who has successfully passed Bearer token authorization.
-	// The interface returned from grabbing this key should be parsed as a string.
-	SessionAuthorizedUser = "authorized_user"
-	// SessionAuthorizedAccount is the key set in the gin context for the Account
-	// of a User who has successfully passed Bearer token authorization.
-	// The interface returned from grabbing this key should be parsed as a *gtsmodel.Account
-	SessionAuthorizedAccount = "authorized_account"
 )
 
-// oauthModule is an oauth2 oauthModule that satisfies the ClientAPIModule interface
+type authModule struct {
-type oauthModule struct {
+	server oauth.Server
-	oauthManager *manage.Manager
+	db     db.DB
-	oauthServer  *server.Server
+	log    *logrus.Logger
-	db           db.DB
-	log          *logrus.Logger
 }
 
 type login struct {
@@ -74,52 +59,17 @@ type login struct {
 	Password string `form:"password"`
 }
 
-// New returns a new oauth module
+// New returns a new auth module
-func New(ts oauth2.TokenStore, cs oauth2.ClientStore, db db.DB, log *logrus.Logger) module.ClientAPIModule {
+func New(srv oauth.Server, db db.DB, log *logrus.Logger) module.ClientAPIModule {
-	manager := manage.NewDefaultManager()
+	return &authModule{
-	manager.MapTokenStorage(ts)
+		server: srv,
-	manager.MapClientStorage(cs)
+		db:     db,
-	manager.SetAuthorizeCodeTokenCfg(manage.DefaultAuthorizeCodeTokenCfg)
+		log:    log,
-	sc := &server.Config{
-		TokenType: "Bearer",
-		// Must follow the spec.
-		AllowGetAccessRequest: false,
-		// Support only the non-implicit flow.
-		AllowedResponseTypes: []oauth2.ResponseType{oauth2.Code},
-		// Allow:
-		// - Authorization Code (for first & third parties)
-		AllowedGrantTypes: []oauth2.GrantType{
-			oauth2.AuthorizationCode,
-		},
-		AllowedCodeChallengeMethods: []oauth2.CodeChallengeMethod{oauth2.CodeChallengePlain},
 	}
-
-	srv := server.NewServer(sc, manager)
-	srv.SetInternalErrorHandler(func(err error) *errors.Response {
-		log.Errorf("internal oauth error: %s", err)
-		return nil
-	})
-
-	srv.SetResponseErrorHandler(func(re *errors.Response) {
-		log.Errorf("internal response error: %s", re.Error)
-	})
-
-	m := &oauthModule{
-		oauthManager: manager,
-		oauthServer:  srv,
-		db:           db,
-		log:          log,
-	}
-
-	m.oauthServer.SetUserAuthorizationHandler(m.userAuthorizationHandler)
-	m.oauthServer.SetClientInfoHandler(server.ClientFormHandler)
-	return m
 }
 
 // Route satisfies the RESTAPIModule interface
-func (m *oauthModule) Route(s router.Router) error {
+func (m *authModule) Route(s router.Router) error {
-	s.AttachHandler(http.MethodPost, appsPath, m.appsPOSTHandler)
-
 	s.AttachHandler(http.MethodGet, authSignInPath, m.signInGETHandler)
 	s.AttachHandler(http.MethodPost, authSignInPath, m.signInPOSTHandler)
 
@@ -129,7 +79,6 @@ func (m *oauthModule) Route(s router.Router) error {
 	s.AttachHandler(http.MethodPost, oauthAuthorizePath, m.authorizePOSTHandler)
 
 	s.AttachMiddleware(m.oauthTokenMiddleware)
-
 	return nil
 }
 
@@ -137,93 +86,10 @@ func (m *oauthModule) Route(s router.Router) error {
 	MAIN HANDLERS -- serve these through a server/router
 */
 
-// appsPOSTHandler should be served at https://example.org/api/v1/apps
-// It is equivalent to: https://docs.joinmastodon.org/methods/apps/
-func (m *oauthModule) appsPOSTHandler(c *gin.Context) {
-	l := m.log.WithField("func", "AppsPOSTHandler")
-	l.Trace("entering AppsPOSTHandler")
-
-	form := &mastotypes.ApplicationPOSTRequest{}
-	if err := c.ShouldBind(form); err != nil {
-		c.JSON(http.StatusUnprocessableEntity, gin.H{"error": err.Error()})
-		return
-	}
-
-	// permitted length for most fields
-	permittedLength := 64
-	// redirect can be a bit bigger because we probably need to encode data in the redirect uri
-	permittedRedirect := 256
-
-	// check lengths of fields before proceeding so the user can't spam huge entries into the database
-	if len(form.ClientName) > permittedLength {
-		c.JSON(http.StatusBadRequest, gin.H{"error": fmt.Sprintf("client_name must be less than %d bytes", permittedLength)})
-		return
-	}
-	if len(form.Website) > permittedLength {
-		c.JSON(http.StatusBadRequest, gin.H{"error": fmt.Sprintf("website must be less than %d bytes", permittedLength)})
-		return
-	}
-	if len(form.RedirectURIs) > permittedRedirect {
-		c.JSON(http.StatusBadRequest, gin.H{"error": fmt.Sprintf("redirect_uris must be less than %d bytes", permittedRedirect)})
-		return
-	}
-	if len(form.Scopes) > permittedLength {
-		c.JSON(http.StatusBadRequest, gin.H{"error": fmt.Sprintf("scopes must be less than %d bytes", permittedLength)})
-		return
-	}
-
-	// set default 'read' for scopes if it's not set, this follows the default of the mastodon api https://docs.joinmastodon.org/methods/apps/
-	var scopes string
-	if form.Scopes == "" {
-		scopes = "read"
-	} else {
-		scopes = form.Scopes
-	}
-
-	// generate new IDs for this application and its associated client
-	clientID := uuid.NewString()
-	clientSecret := uuid.NewString()
-	vapidKey := uuid.NewString()
-
-	// generate the application to put in the database
-	app := &model.Application{
-		Name:         form.ClientName,
-		Website:      form.Website,
-		RedirectURI:  form.RedirectURIs,
-		ClientID:     clientID,
-		ClientSecret: clientSecret,
-		Scopes:       scopes,
-		VapidKey:     vapidKey,
-	}
-
-	// chuck it in the db
-	if err := m.db.Put(app); err != nil {
-		c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
-		return
-	}
-
-	// now we need to model an oauth client from the application that the oauth library can use
-	oc := &oauthClient{
-		ID:     clientID,
-		Secret: clientSecret,
-		Domain: form.RedirectURIs,
-		UserID: "", // This client isn't yet associated with a specific user,  it's just an app client right now
-	}
-
-	// chuck it in the db
-	if err := m.db.Put(oc); err != nil {
-		c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
-		return
-	}
-
-	// done, return the new app information per the spec here: https://docs.joinmastodon.org/methods/apps/
-	c.JSON(http.StatusOK, app.ToMasto())
-}
-
 // signInGETHandler should be served at https://example.org/auth/sign_in.
 // The idea is to present a sign in page to the user, where they can enter their username and password.
 // The form will then POST to the sign in page, which will be handled by SignInPOSTHandler
-func (m *oauthModule) signInGETHandler(c *gin.Context) {
+func (m *authModule) signInGETHandler(c *gin.Context) {
 	m.log.WithField("func", "SignInGETHandler").Trace("serving sign in html")
 	c.HTML(http.StatusOK, "sign-in.tmpl", gin.H{})
 }
@@ -231,7 +97,7 @@ func (m *oauthModule) signInGETHandler(c *gin.Context) {
 // signInPOSTHandler should be served at https://example.org/auth/sign_in.
 // The idea is to present a sign in page to the user, where they can enter their username and password.
 // The handler will then redirect to the auth handler served at /auth
-func (m *oauthModule) signInPOSTHandler(c *gin.Context) {
+func (m *authModule) signInPOSTHandler(c *gin.Context) {
 	l := m.log.WithField("func", "SignInPOSTHandler")
 	s := sessions.Default(c)
 	form := &login{}
@@ -260,10 +126,10 @@ func (m *oauthModule) signInPOSTHandler(c *gin.Context) {
 // tokenPOSTHandler 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 (m *oauthModule) tokenPOSTHandler(c *gin.Context) {
+func (m *authModule) tokenPOSTHandler(c *gin.Context) {
 	l := m.log.WithField("func", "TokenPOSTHandler")
 	l.Trace("entered TokenPOSTHandler")
-	if err := m.oauthServer.HandleTokenRequest(c.Writer, c.Request); err != nil {
+	if err := m.server.HandleTokenRequest(c.Writer, c.Request); err != nil {
 		c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
 	}
 }
@@ -271,7 +137,7 @@ func (m *oauthModule) tokenPOSTHandler(c *gin.Context) {
 // 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 (m *oauthModule) authorizeGETHandler(c *gin.Context) {
+func (m *authModule) authorizeGETHandler(c *gin.Context) {
 	l := m.log.WithField("func", "AuthorizeGETHandler")
 	s := sessions.Default(c)
 
@@ -349,7 +215,7 @@ func (m *oauthModule) authorizeGETHandler(c *gin.Context) {
 // At this point we assume that the user has A) logged in and B) accepted that the app should act for them,
 // so we should proceed with the authentication flow and generate an oauth token for them if we can.
 // See here: https://docs.joinmastodon.org/methods/apps/oauth/#authorize-a-user
-func (m *oauthModule) authorizePOSTHandler(c *gin.Context) {
+func (m *authModule) authorizePOSTHandler(c *gin.Context) {
 	l := m.log.WithField("func", "AuthorizePOSTHandler")
 	s := sessions.Default(c)
 
@@ -404,7 +270,7 @@ func (m *oauthModule) authorizePOSTHandler(c *gin.Context) {
 	l.Tracef("values on request set to %+v", c.Request.Form)
 
 	// and proceed with authorization using the oauth2 library
-	if err := m.oauthServer.HandleAuthorizeRequest(c.Writer, c.Request); err != nil {
+	if err := m.server.HandleAuthorizeRequest(c.Writer, c.Request); err != nil {
 		c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
 	}
 }
@@ -418,25 +284,50 @@ func (m *oauthModule) authorizePOSTHandler(c *gin.Context) {
 // the request. Then, it will look up the account for that user, and set that in the request too.
 // If user or account can't be found, then the handler won't *fail*, in case the server wants to allow
 // public requests that don't have a Bearer token set (eg., for public instance information and so on).
-func (m *oauthModule) oauthTokenMiddleware(c *gin.Context) {
+func (m *authModule) oauthTokenMiddleware(c *gin.Context) {
 	l := m.log.WithField("func", "ValidatePassword")
 	l.Trace("entering OauthTokenMiddleware")
 
-	ti, err := m.oauthServer.ValidationBearerToken(c.Request)
+	ti, err := m.server.ValidationBearerToken(c.Request)
 	if err != nil {
 		l.Trace("no valid token presented: continuing with unauthenticated request")
 		return
 	}
-	l.Tracef("authenticated user %s with bearer token, scope is %s", ti.GetUserID(), ti.GetScope())
+	c.Set(oauth.SessionAuthorizedToken, ti)
+	l.Tracef("set gin context %s to %+v", oauth.SessionAuthorizedToken, ti)
 
-	acct := &model.Account{}
+	// check for user-level token
-	if err := m.db.GetAccountByUserID(ti.GetUserID(), acct); err != nil || acct == nil {
+	if uid := ti.GetUserID(); uid != "" {
-		l.Tracef("no account found for user %s, continuing with unauthenticated request", ti.GetUserID())
+		l.Tracef("authenticated user %s with bearer token, scope is %s", uid, ti.GetScope())
-		return
+
+		// fetch user's and account for this user id
+		user := &model.User{}
+		if err := m.db.GetByID(uid, user); err != nil || user == nil {
+			l.Warnf("no user found for validated uid %s", uid)
+			return
+		}
+		c.Set(oauth.SessionAuthorizedUser, user)
+		l.Tracef("set gin context %s to %+v", oauth.SessionAuthorizedUser, user)
+
+		acct := &model.Account{}
+		if err := m.db.GetByID(user.AccountID, acct); err != nil || acct == nil {
+			l.Warnf("no account found for validated user %s", uid)
+			return
+		}
+		c.Set(oauth.SessionAuthorizedAccount, acct)
+		l.Tracef("set gin context %s to %+v", oauth.SessionAuthorizedAccount, acct)
 	}
 
-	c.Set(SessionAuthorizedAccount, acct)
+	// check for application token
-	c.Set(SessionAuthorizedUser, ti.GetUserID())
+	if cid := ti.GetClientID(); cid != "" {
+		l.Tracef("authenticated client %s with bearer token, scope is %s", cid, ti.GetScope())
+		app := &model.Application{}
+		if err := m.db.GetWhere("client_id", cid, app); err != nil {
+			l.Tracef("no app found for client %s", cid)
+		}
+		c.Set(oauth.SessionAuthorizedApplication, app)
+		l.Tracef("set gin context %s to %+v", oauth.SessionAuthorizedApplication, app)
+	}
 }
 
 /*
@@ -447,7 +338,7 @@ func (m *oauthModule) oauthTokenMiddleware(c *gin.Context) {
 // The goal is to authenticate the password against the one for that email
 // address stored in the database. If OK, we return the userid (a uuid) for that user,
 // so that it can be used in further Oauth flows to generate a token/retreieve an oauth client from the db.
-func (m *oauthModule) validatePassword(email string, password string) (userid string, err error) {
+func (m *authModule) validatePassword(email string, password string) (userid string, err error) {
 	l := m.log.WithField("func", "ValidatePassword")
 
 	// make sure an email/password was provided and bail if not
@@ -487,18 +378,6 @@ func incorrectPassword() (string, error) {
 	return "", errors.New("password/email combination was incorrect")
 }
 
-// userAuthorizationHandler gets the user's ID from the 'userid' field of the request form,
-// or redirects to the /auth/sign_in page, if this key is not present.
-func (m *oauthModule) userAuthorizationHandler(w http.ResponseWriter, r *http.Request) (userID string, err error) {
-	l := m.log.WithField("func", "UserAuthorizationHandler")
-	userID = r.FormValue("userid")
-	if userID == "" {
-		return "", errors.New("userid was empty, redirecting to sign in page")
-	}
-	l.Tracef("returning userID %s", userID)
-	return userID, err
-}
-
 // parseAuthForm parses the OAuthAuthorize form in the gin context, and stores
 // the values in the form into the session.
 func parseAuthForm(c *gin.Context, l *logrus.Entry) error {

internal/module/auth/auth_test.go

@@ -16,38 +16,38 @@
    along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
 
-package oauth
+package auth
 
 import (
 	"context"
 	"fmt"
 	"testing"
+	"time"
 
 	"github.com/google/uuid"
 	"github.com/gotosocial/gotosocial/internal/config"
 	"github.com/gotosocial/gotosocial/internal/db"
 	"github.com/gotosocial/gotosocial/internal/db/model"
+	"github.com/gotosocial/gotosocial/internal/oauth"
 	"github.com/gotosocial/gotosocial/internal/router"
-	"github.com/gotosocial/oauth2/v4"
 	"github.com/sirupsen/logrus"
 	"github.com/stretchr/testify/suite"
 	"golang.org/x/crypto/bcrypt"
 )
 
-type OauthTestSuite struct {
+type AuthTestSuite struct {
 	suite.Suite
-	tokenStore      oauth2.TokenStore
+	oauthServer     oauth.Server
-	clientStore     oauth2.ClientStore
 	db              db.DB
 	testAccount     *model.Account
 	testApplication *model.Application
 	testUser        *model.User
-	testClient      *oauthClient
+	testClient      *oauth.Client
 	config          *config.Config
 }
 
 // SetupSuite sets some variables on the suite that we can use as consts (more or less) throughout
-func (suite *OauthTestSuite) SetupSuite() {
+func (suite *AuthTestSuite) SetupSuite() {
 	c := config.Empty()
 	// we're running on localhost without https so set the protocol to http
 	c.Protocol = "http"
@@ -84,7 +84,7 @@ func (suite *OauthTestSuite) SetupSuite() {
 		Email:             "user@example.org",
 		AccountID:         acctID,
 	}
-	suite.testClient = &oauthClient{
+	suite.testClient = &oauth.Client{
 		ID:     "a-known-client-id",
 		Secret: "some-secret",
 		Domain: fmt.Sprintf("%s://%s", c.Protocol, c.Host),
@@ -101,7 +101,7 @@ func (suite *OauthTestSuite) SetupSuite() {
 }
 
 // SetupTest creates a postgres connection and creates the oauth_clients table before each test
-func (suite *OauthTestSuite) SetupTest() {
+func (suite *AuthTestSuite) SetupTest() {
 
 	log := logrus.New()
 	log.SetLevel(logrus.TraceLevel)
@@ -113,8 +113,8 @@ func (suite *OauthTestSuite) SetupTest() {
 	suite.db = db
 
 	models := []interface{}{
-		&oauthClient{},
+		&oauth.Client{},
-		&oauthToken{},
+		&oauth.Token{},
 		&model.User{},
 		&model.Account{},
 		&model.Application{},
@@ -126,8 +126,7 @@ func (suite *OauthTestSuite) SetupTest() {
 		}
 	}
 
-	suite.tokenStore = newTokenStore(context.Background(), suite.db, logrus.New())
+	suite.oauthServer = oauth.New(suite.db, log)
-	suite.clientStore = newClientStore(suite.db)
 
 	if err := suite.db.Put(suite.testAccount); err != nil {
 		logrus.Panicf("could not insert test account into db: %s", err)
@@ -145,10 +144,10 @@ func (suite *OauthTestSuite) SetupTest() {
 }
 
 // TearDownTest drops the oauth_clients table and closes the pg connection after each test
-func (suite *OauthTestSuite) TearDownTest() {
+func (suite *AuthTestSuite) TearDownTest() {
 	models := []interface{}{
-		&oauthClient{},
+		&oauth.Client{},
-		&oauthToken{},
+		&oauth.Token{},
 		&model.User{},
 		&model.Account{},
 		&model.Application{},
@@ -164,7 +163,7 @@ func (suite *OauthTestSuite) TearDownTest() {
 	suite.db = nil
 }
 
-func (suite *OauthTestSuite) TestAPIInitialize() {
+func (suite *AuthTestSuite) TestAPIInitialize() {
 	log := logrus.New()
 	log.SetLevel(logrus.TraceLevel)
 
@@ -173,17 +172,18 @@ func (suite *OauthTestSuite) TestAPIInitialize() {
 		suite.FailNow(fmt.Sprintf("error mapping routes onto router: %s", err))
 	}
 
-	api := New(suite.tokenStore, suite.clientStore, suite.db, log)
+	api := New(suite.oauthServer, suite.db, log)
 	if err := api.Route(r); err != nil {
 		suite.FailNow(fmt.Sprintf("error mapping routes onto router: %s", err))
 	}
 
 	r.Start()
+	time.Sleep(60 * time.Second)
 	if err := r.Stop(context.Background()); err != nil {
 		suite.FailNow(fmt.Sprintf("error stopping router: %s", err))
 	}
 }
 
-func TestOauthTestSuite(t *testing.T) {
+func TestAuthTestSuite(t *testing.T) {
-	suite.Run(t, new(OauthTestSuite))
+	suite.Run(t, new(AuthTestSuite))
 }

internal/oauth/clientstore.go

@@ -38,7 +38,7 @@ func newClientStore(db db.DB) oauth2.ClientStore {
 }
 
 func (cs *clientStore) GetByID(ctx context.Context, clientID string) (oauth2.ClientInfo, error) {
-	poc := &oauthClient{
+	poc := &Client{
 		ID: clientID,
 	}
 	if err := cs.db.GetByID(clientID, poc); err != nil {
@@ -48,7 +48,7 @@ func (cs *clientStore) GetByID(ctx context.Context, clientID string) (oauth2.Cli
 }
 
 func (cs *clientStore) Set(ctx context.Context, id string, cli oauth2.ClientInfo) error {
-	poc := &oauthClient{
+	poc := &Client{
 		ID:     cli.GetID(),
 		Secret: cli.GetSecret(),
 		Domain: cli.GetDomain(),
@@ -58,13 +58,13 @@ func (cs *clientStore) Set(ctx context.Context, id string, cli oauth2.ClientInfo
 }
 
 func (cs *clientStore) Delete(ctx context.Context, id string) error {
-	poc := &oauthClient{
+	poc := &Client{
 		ID: id,
 	}
 	return cs.db.DeleteByID(id, poc)
 }
 
-type oauthClient struct {
+type Client struct {
 	ID     string
 	Secret string
 	Domain string

internal/oauth/clientstore_test.go

@@ -69,7 +69,7 @@ func (suite *PgClientStoreTestSuite) SetupTest() {
 	suite.db = db
 
 	models := []interface{}{
-		&oauthClient{},
+		&Client{},
 	}
 
 	for _, m := range models {
@@ -82,7 +82,7 @@ func (suite *PgClientStoreTestSuite) SetupTest() {
 // TearDownTest drops the oauth_clients table and closes the pg connection after each test
 func (suite *PgClientStoreTestSuite) TearDownTest() {
 	models := []interface{}{
-		&oauthClient{},
+		&Client{},
 	}
 	for _, m := range models {
 		if err := suite.db.DropTable(m); err != nil {

internal/oauth/oauth.go

@@ -0,0 +1,212 @@
+/*
+   GoToSocial
+   Copyright (C) 2021 GoToSocial Authors admin@gotosocial.org
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU Affero General Public License as published by
+   the Free Software Foundation, either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU Affero General Public License for more details.
+
+   You should have received a copy of the GNU Affero General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+package oauth
+
+import (
+	"context"
+	"net/http"
+
+	"github.com/gin-gonic/gin"
+	"github.com/gotosocial/gotosocial/internal/db"
+	"github.com/gotosocial/gotosocial/internal/db/model"
+	"github.com/gotosocial/oauth2/v4"
+	"github.com/gotosocial/oauth2/v4/errors"
+	"github.com/gotosocial/oauth2/v4/manage"
+	"github.com/gotosocial/oauth2/v4/server"
+	"github.com/sirupsen/logrus"
+)
+
+const (
+	SessionAuthorizedToken = "authorized_token"
+	// SessionAuthorizedUser is the key set in the gin context for the id of
+	// a User who has successfully passed Bearer token authorization.
+	// The interface returned from grabbing this key should be parsed as a *gtsmodel.User
+	SessionAuthorizedUser = "authorized_user"
+	// SessionAuthorizedAccount is the key set in the gin context for the Account
+	// of a User who has successfully passed Bearer token authorization.
+	// The interface returned from grabbing this key should be parsed as a *gtsmodel.Account
+	SessionAuthorizedAccount = "authorized_account"
+	// SessionAuthorizedAccount is the key set in the gin context for the Application
+	// of a Client who has successfully passed Bearer token authorization.
+	// The interface returned from grabbing this key should be parsed as a *gtsmodel.Application
+	SessionAuthorizedApplication = "authorized_app"
+)
+
+// Server wraps some oauth2 server functions in an interface, exposing only what is needed
+type Server interface {
+	HandleTokenRequest(w http.ResponseWriter, r *http.Request) error
+	HandleAuthorizeRequest(w http.ResponseWriter, r *http.Request) error
+	ValidationBearerToken(r *http.Request) (oauth2.TokenInfo, error)
+	GenerateUserAccessToken(ti oauth2.TokenInfo, clientSecret string, userID string) (accessToken oauth2.TokenInfo, err error)
+}
+
+// s fulfils the Server interface using the underlying oauth2 server
+type s struct {
+	server *server.Server
+	log    *logrus.Logger
+}
+
+type Authed struct {
+	Token       oauth2.TokenInfo
+	Application *model.Application
+	User        *model.User
+	Account     *model.Account
+}
+
+// GetAuthed is a convenience function for returning an Authed struct from a gin context.
+// In essence, it tries to extract a token, application, user, and account from the context,
+// and then sets them on a struct for convenience.
+//
+// If any are not present in the context, they will be set to nil on the returned Authed struct.
+//
+// If *ALL* are not present, then nil and an error will be returned.
+//
+// If something goes wrong during parsing, then nil and an error will be returned (consider this not authed).
+func GetAuthed(c *gin.Context) (*Authed, error) {
+	ctx := c.Copy()
+	a := &Authed{}
+	var i interface{}
+	var ok bool
+
+	i, ok = ctx.Get(SessionAuthorizedToken)
+	if ok {
+		parsed, ok := i.(oauth2.TokenInfo)
+		if !ok {
+			return nil, errors.New("could not parse token from session context")
+		}
+		a.Token = parsed
+	}
+
+	i, ok = ctx.Get(SessionAuthorizedApplication)
+	if ok {
+		parsed, ok := i.(*model.Application)
+		if !ok {
+			return nil, errors.New("could not parse application from session context")
+		}
+		a.Application = parsed
+	}
+
+	i, ok = ctx.Get(SessionAuthorizedUser)
+	if ok {
+		parsed, ok := i.(*model.User)
+		if !ok {
+			return nil, errors.New("could not parse user from session context")
+		}
+		a.User = parsed
+	}
+
+	i, ok = ctx.Get(SessionAuthorizedAccount)
+	if ok {
+		parsed, ok := i.(*model.Account)
+		if !ok {
+			return nil, errors.New("could not parse account from session context")
+		}
+		a.Account = parsed
+	}
+
+	if a.Token == nil && a.Application == nil && a.User == nil && a.Account == nil {
+		return nil, errors.New("not authorized")
+	}
+
+	return a, nil
+}
+
+// HandleTokenRequest wraps the oauth2 library's HandleTokenRequest function
+func (s *s) HandleTokenRequest(w http.ResponseWriter, r *http.Request) error {
+	return s.server.HandleTokenRequest(w, r)
+}
+
+// HandleAuthorizeRequest wraps the oauth2 library's HandleAuthorizeRequest function
+func (s *s) HandleAuthorizeRequest(w http.ResponseWriter, r *http.Request) error {
+	return s.server.HandleAuthorizeRequest(w, r)
+}
+
+// ValidationBearerToken wraps the oauth2 library's ValidationBearerToken function
+func (s *s) ValidationBearerToken(r *http.Request) (oauth2.TokenInfo, error) {
+	return s.server.ValidationBearerToken(r)
+}
+
+// GenerateUserAccessToken shortcuts the normal oauth flow to create an user-level
+// bearer token *without* requiring that user to log in. This is useful when we
+// need to create a token for new users who haven't validated their email or logged in yet.
+//
+// The ti parameter refers to an existing Application token that was used to make the upstream
+// request. This token needs to be validated and exist in database in order to create a new token.
+func (s *s) GenerateUserAccessToken(ti oauth2.TokenInfo, clientSecret string, userID string) (accessToken oauth2.TokenInfo, err error) {
+
+	tgr := &oauth2.TokenGenerateRequest{
+		ClientID:            ti.GetClientID(),
+		ClientSecret:        clientSecret,
+		UserID:              userID,
+		RedirectURI:         ti.GetRedirectURI(),
+		Scope:               ti.GetScope(),
+		Code:                ti.GetCode(),
+		CodeChallenge:       ti.GetCodeChallenge(),
+		CodeChallengeMethod: ti.GetCodeChallengeMethod(),
+	}
+
+	return s.server.Manager.GenerateAccessToken(context.Background(), oauth2.AuthorizationCode, tgr)
+}
+
+func New(database db.DB, log *logrus.Logger) Server {
+	ts := newTokenStore(context.Background(), database, log)
+	cs := newClientStore(database)
+
+	manager := manage.NewDefaultManager()
+	manager.MapTokenStorage(ts)
+	manager.MapClientStorage(cs)
+	manager.SetAuthorizeCodeTokenCfg(manage.DefaultAuthorizeCodeTokenCfg)
+	sc := &server.Config{
+		TokenType: "Bearer",
+		// Must follow the spec.
+		AllowGetAccessRequest: false,
+		// Support only the non-implicit flow.
+		AllowedResponseTypes: []oauth2.ResponseType{oauth2.Code},
+		// Allow:
+		// - Authorization Code (for first & third parties)
+		// - Client Credentials (for applications)
+		AllowedGrantTypes: []oauth2.GrantType{
+			oauth2.AuthorizationCode,
+			oauth2.ClientCredentials,
+		},
+		AllowedCodeChallengeMethods: []oauth2.CodeChallengeMethod{oauth2.CodeChallengePlain},
+	}
+
+	srv := server.NewServer(sc, manager)
+	srv.SetInternalErrorHandler(func(err error) *errors.Response {
+		log.Errorf("internal oauth error: %s", err)
+		return nil
+	})
+
+	srv.SetResponseErrorHandler(func(re *errors.Response) {
+		log.Errorf("internal response error: %s", re.Error)
+	})
+
+	srv.SetUserAuthorizationHandler(func(w http.ResponseWriter, r *http.Request) (string, error) {
+		userID := r.FormValue("userid")
+		if userID == "" {
+			return "", errors.New("userid was empty")
+		}
+		return userID, nil
+	})
+	srv.SetClientInfoHandler(server.ClientFormHandler)
+	return &s{
+		server: srv,
+	}
+}

internal/oauth/oauth_test.go

@@ -0,0 +1,21 @@
+/*
+   GoToSocial
+   Copyright (C) 2021 GoToSocial Authors admin@gotosocial.org
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU Affero General Public License as published by
+   the Free Software Foundation, either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU Affero General Public License for more details.
+
+   You should have received a copy of the GNU Affero General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+package oauth
+
+// TODO: write tests

internal/oauth/tokenstore.go

@@ -70,7 +70,7 @@ func newTokenStore(ctx context.Context, db db.DB, log *logrus.Logger) oauth2.Tok
 func (pts *tokenStore) sweep() error {
 	// select *all* tokens from the db
 	// todo: if this becomes expensive (ie., there are fucking LOADS of tokens) then figure out a better way.
-	tokens := new([]*oauthToken)
+	tokens := new([]*Token)
 	if err := pts.db.GetAll(tokens); err != nil {
 		return err
 	}
@@ -106,22 +106,22 @@ func (pts *tokenStore) Create(ctx context.Context, info oauth2.TokenInfo) error
 
 // RemoveByCode deletes a token from the DB based on the Code field
 func (pts *tokenStore) RemoveByCode(ctx context.Context, code string) error {
-	return pts.db.DeleteWhere("code", code, &oauthToken{})
+	return pts.db.DeleteWhere("code", code, &Token{})
 }
 
 // RemoveByAccess deletes a token from the DB based on the Access field
 func (pts *tokenStore) RemoveByAccess(ctx context.Context, access string) error {
-	return pts.db.DeleteWhere("access", access, &oauthToken{})
+	return pts.db.DeleteWhere("access", access, &Token{})
 }
 
 // RemoveByRefresh deletes a token from the DB based on the Refresh field
 func (pts *tokenStore) RemoveByRefresh(ctx context.Context, refresh string) error {
-	return pts.db.DeleteWhere("refresh", refresh, &oauthToken{})
+	return pts.db.DeleteWhere("refresh", refresh, &Token{})
 }
 
 // GetByCode selects a token from the DB based on the Code field
 func (pts *tokenStore) GetByCode(ctx context.Context, code string) (oauth2.TokenInfo, error) {
-	pgt := &oauthToken{
+	pgt := &Token{
 		Code: code,
 	}
 	if err := pts.db.GetWhere("code", code, pgt); err != nil {
@@ -132,7 +132,7 @@ func (pts *tokenStore) GetByCode(ctx context.Context, code string) (oauth2.Token
 
 // GetByAccess selects a token from the DB based on the Access field
 func (pts *tokenStore) GetByAccess(ctx context.Context, access string) (oauth2.TokenInfo, error) {
-	pgt := &oauthToken{
+	pgt := &Token{
 		Access: access,
 	}
 	if err := pts.db.GetWhere("access", access, pgt); err != nil {
@@ -143,7 +143,7 @@ func (pts *tokenStore) GetByAccess(ctx context.Context, access string) (oauth2.T
 
 // GetByRefresh selects a token from the DB based on the Refresh field
 func (pts *tokenStore) GetByRefresh(ctx context.Context, refresh string) (oauth2.TokenInfo, error) {
-	pgt := &oauthToken{
+	pgt := &Token{
 		Refresh: refresh,
 	}
 	if err := pts.db.GetWhere("refresh", refresh, pgt); err != nil {
@@ -156,7 +156,7 @@ func (pts *tokenStore) GetByRefresh(ctx context.Context, refresh string) (oauth2
 	The following models are basically helpers for the postgres token store implementation, they should only be used internally.
 */
 
-// oauthToken is a translation of the gotosocial token with the ExpiresIn fields replaced with ExpiresAt.
+// Token is a translation of the gotosocial token with the ExpiresIn fields replaced with ExpiresAt.
 //
 // Explanation for this: gotosocial assumes an in-memory or file database of some kind, where a time-to-live parameter (TTL) can be defined,
 // and tokens with expired TTLs are automatically removed. Since Postgres doesn't have that feature, it's easier to set an expiry time and
@@ -164,9 +164,9 @@ func (pts *tokenStore) GetByRefresh(ctx context.Context, refresh string) (oauth2
 //
 // Note that this struct does *not* satisfy the token interface shown here: https://github.com/gotosocial/oauth2/blob/master/model.go#L22
 // and implemented here: https://github.com/gotosocial/oauth2/blob/master/models/token.go.
-// As such, manual translation is always required between oauthToken and the gotosocial *model.Token. The helper functions oauthTokenToPGToken
+// As such, manual translation is always required between Token and the gotosocial *model.Token. The helper functions oauthTokenToPGToken
 // and pgTokenToOauthToken can be used for that.
-type oauthToken struct {
+type Token struct {
 	ID                  string `pg:"type:uuid,default:gen_random_uuid(),pk,notnull"`
 	ClientID            string
 	UserID              string
@@ -186,7 +186,7 @@ type oauthToken struct {
 }
 
 // oauthTokenToPGToken is a lil util function that takes a gotosocial token and gives back a token for inserting into postgres
-func oauthTokenToPGToken(tkn *models.Token) *oauthToken {
+func oauthTokenToPGToken(tkn *models.Token) *Token {
 	now := time.Now()
 
 	// For the following, we want to make sure we're not adding a time.Now() to an *empty* ExpiresIn, otherwise that's
@@ -208,7 +208,7 @@ func oauthTokenToPGToken(tkn *models.Token) *oauthToken {
 		rea = now.Add(tkn.RefreshExpiresIn)
 	}
 
-	return &oauthToken{
+	return &Token{
 		ClientID:            tkn.ClientID,
 		UserID:              tkn.UserID,
 		RedirectURI:         tkn.RedirectURI,
@@ -228,7 +228,7 @@ func oauthTokenToPGToken(tkn *models.Token) *oauthToken {
 }
 
 // pgTokenToOauthToken is a lil util function that takes a postgres token and gives back a gotosocial token
-func pgTokenToOauthToken(pgt *oauthToken) *models.Token {
+func pgTokenToOauthToken(pgt *Token) *models.Token {
 	now := time.Now()
 
 	return &models.Token{

internal/oauth/tokenstore_test.go

@@ -0,0 +1,21 @@
+/*
+   GoToSocial
+   Copyright (C) 2021 GoToSocial Authors admin@gotosocial.org
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU Affero General Public License as published by
+   the Free Software Foundation, either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU Affero General Public License for more details.
+
+   You should have received a copy of the GNU Affero General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+package oauth
+
+// TODO: write tests

internal/router/router.go

@@ -36,7 +36,7 @@ import (
 // Router provides the REST interface for gotosocial, using gin.
 type Router interface {
 	// Attach a gin handler to the router with the given method and path
-	AttachHandler(method string, path string, handler gin.HandlerFunc)
+	AttachHandler(method string, path string, f gin.HandlerFunc)
 	// Attach a gin middleware to the router that will be used globally
 	AttachMiddleware(handler gin.HandlerFunc)
 	// Start the router
@@ -59,6 +59,8 @@ func (r *router) Start() {
 			r.logger.Fatalf("listen: %s", err)
 		}
 	}()
+	// c := &gin.Context{}
+	// c.Get()
 }
 
 // Stop shuts down the router nicely

pkg/mastotypes/token.go

@@ -0,0 +1,31 @@
+/*
+   GoToSocial
+   Copyright (C) 2021 GoToSocial Authors admin@gotosocial.org
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU Affero General Public License as published by
+   the Free Software Foundation, either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU Affero General Public License for more details.
+
+   You should have received a copy of the GNU Affero General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+package mastotypes
+
+// Token represents an OAuth token used for authenticating with the API and performing actions.. See https://docs.joinmastodon.org/entities/token/
+type Token struct {
+	// An OAuth token to be used for authorization.
+	AccessToken string `json:"access_token"`
+	// The OAuth token type. Mastodon uses Bearer tokens.
+	TokenType string `json:"token_type"`
+	// The OAuth scopes granted by this token, space-separated.
+	Scope string `json:"scope"`
+	// When the token was generated. (UNIX timestamp seconds)
+	CreatedAt int64 `json:"created_at"`
+}