Require confirmed email when checking oauth token (#332)

* move token checker to security package

* update tests with new security package

* add oauth token checking to security package

* check if user email confirmed when parsing token

1 files changed, 96 insertions, 0 deletions

diff --git a/internal/api/security/tokencheck.go b/internal/api/security/tokencheck.go
new file mode 100644
index 000000000..5a47e3833
--- /dev/null
+++ b/internal/api/security/tokencheck.go
@@ -0,0 +1,96 @@
+/*
+   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 security
+
+import (
+	"github.com/gin-gonic/gin"
+	"github.com/sirupsen/logrus"
+	"github.com/superseriousbusiness/gotosocial/internal/db"
+	"github.com/superseriousbusiness/gotosocial/internal/gtsmodel"
+	"github.com/superseriousbusiness/gotosocial/internal/oauth"
+)
+
+// TokenCheck checks if the client has presented a valid oauth Bearer token.
+// If so, it will check the User that the token belongs to, and set that in the context of
+// 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 *Module) TokenCheck(c *gin.Context) {
+	l := logrus.WithField("func", "OauthTokenMiddleware")
+	ctx := c.Request.Context()
+	defer c.Next()
+
+	if c.Request.Header.Get("Authorization") == "" {
+		// no token set in the header, we can just bail
+		return
+	}
+
+	ti, err := m.server.ValidationBearerToken(c.Copy().Request)
+	if err != nil {
+		l.Infof("token was passed in Authorization header but we could not validate it: %s", err)
+		return
+	}
+	c.Set(oauth.SessionAuthorizedToken, ti)
+
+	// check for user-level token
+	if userID := ti.GetUserID(); userID != "" {
+		l.Tracef("authenticated user %s with bearer token, scope is %s", userID, ti.GetScope())
+
+		// fetch user for this token
+		user := &gtsmodel.User{}
+		if err := m.db.GetByID(ctx, userID, user); err != nil {
+			if err != db.ErrNoEntries {
+				l.Errorf("database error looking for user with id %s: %s", userID, err)
+				return
+			}
+			l.Warnf("no user found for userID %s", userID)
+			return
+		}
+		c.Set(oauth.SessionAuthorizedUser, user)
+
+		// fetch account for this token
+		acct, err := m.db.GetAccountByID(ctx, user.AccountID)
+		if err != nil {
+			if err != db.ErrNoEntries {
+				l.Errorf("database error looking for account with id %s: %s", user.AccountID, err)
+				return
+			}
+			l.Warnf("no account found for userID %s", userID)
+			return
+		}
+		c.Set(oauth.SessionAuthorizedAccount, acct)
+	}
+
+	// check for application token
+	if clientID := ti.GetClientID(); clientID != "" {
+		l.Tracef("authenticated client %s with bearer token, scope is %s", clientID, ti.GetScope())
+
+		// fetch app for this token
+		app := &gtsmodel.Application{}
+		if err := m.db.GetWhere(ctx, []db.Where{{Key: "client_id", Value: clientID}}, app); err != nil {
+			if err != db.ErrNoEntries {
+				l.Errorf("database error looking for application with clientID %s: %s", clientID, err)
+				return
+			}
+			l.Warnf("no app found for client %s", clientID)
+			return
+		}
+		c.Set(oauth.SessionAuthorizedApplication, app)
+	}
+}