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dendrite/userapi/storage/devices/postgres/logintoken_table.go
tommie c36e4546c3
Support for m.login.token (#2014)
* Add GOPATH to PATH in find-lint.sh.

The user doesn't necessarily have it in PATH.

* Refactor LoginTypePassword and Type to support m.login.token and m.login.sso.

For login token:

* m.login.token will require deleting the token after completeAuth has
  generated an access token, so a cleanup function is returned by
  Type.Login.
* Allowing different login types will require parsing the /login body
  twice: first to extract the "type" and then the type-specific parsing.
  Thus, we will have to buffer the request JSON in /login, like
  UserInteractive already does.

For SSO:

* NewUserInteractive will have to also use GetAccountByLocalpart. It
  makes more sense to just pass a (narrowed-down) accountDB interface
  to it than adding more function pointers.

Code quality:

* Passing around (and down-casting) interface{} for login request types
  has drawbacks in terms of type-safety, and no inherent benefits. We
  always decode JSON anyway. Hence renaming to Type.LoginFromJSON. Code
  that directly uses LoginTypePassword with parsed data can still use
  Login.
* Removed a TODO for SSO. This is already tracked in #1297.
* httputil.UnmarshalJSON is useful because it returns a JSONResponse.

This change is intended to have no functional changes.

* Support login tokens in User API.

This adds full lifecycle functions for login tokens: create, query, delete.

* Support m.login.token in /login.

* Fixes for PR review.

* Set @matrix-org/dendrite-core as repository code owner

* Return event NID from `StoreEvent`, match PSQL vs SQLite behaviour, tweak backfill persistence (#2071)

Co-authored-by: kegsay <kegan@matrix.org>
Co-authored-by: Neil Alexander <neilalexander@users.noreply.github.com>
2022-02-10 10:27:26 +00:00

93 lines
3.2 KiB
Go

// Copyright 2021 The Matrix.org Foundation C.I.C.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package postgres
import (
"context"
"database/sql"
"time"
"github.com/matrix-org/dendrite/internal/sqlutil"
"github.com/matrix-org/dendrite/userapi/api"
"github.com/matrix-org/util"
)
type loginTokenStatements struct {
insertStmt *sql.Stmt
deleteStmt *sql.Stmt
selectByTokenStmt *sql.Stmt
}
// execSchema ensures tables and indices exist.
func (s *loginTokenStatements) execSchema(db *sql.DB) error {
_, err := db.Exec(`
CREATE TABLE IF NOT EXISTS login_tokens (
-- The random value of the token issued to a user
token TEXT NOT NULL PRIMARY KEY,
-- When the token expires
token_expires_at TIMESTAMP NOT NULL,
-- The mxid for this account
user_id TEXT NOT NULL
);
-- This index allows efficient garbage collection of expired tokens.
CREATE INDEX IF NOT EXISTS login_tokens_expiration_idx ON login_tokens(token_expires_at);
`)
return err
}
// prepare runs statement preparation.
func (s *loginTokenStatements) prepare(db *sql.DB) error {
return sqlutil.StatementList{
{&s.insertStmt, "INSERT INTO login_tokens(token, token_expires_at, user_id) VALUES ($1, $2, $3)"},
{&s.deleteStmt, "DELETE FROM login_tokens WHERE token = $1 OR token_expires_at <= $2"},
{&s.selectByTokenStmt, "SELECT user_id FROM login_tokens WHERE token = $1 AND token_expires_at > $2"},
}.Prepare(db)
}
// insert adds an already generated token to the database.
func (s *loginTokenStatements) insert(ctx context.Context, txn *sql.Tx, metadata *api.LoginTokenMetadata, data *api.LoginTokenData) error {
stmt := sqlutil.TxStmt(txn, s.insertStmt)
_, err := stmt.ExecContext(ctx, metadata.Token, metadata.Expiration.UTC(), data.UserID)
return err
}
// deleteByToken removes the named token.
//
// As a simple way to garbage-collect stale tokens, we also remove all expired tokens.
// The login_tokens_expiration_idx index should make that efficient.
func (s *loginTokenStatements) deleteByToken(ctx context.Context, txn *sql.Tx, token string) error {
stmt := sqlutil.TxStmt(txn, s.deleteStmt)
res, err := stmt.ExecContext(ctx, token, time.Now().UTC())
if err != nil {
return err
}
if n, err := res.RowsAffected(); err == nil && n > 1 {
util.GetLogger(ctx).WithField("num_deleted", n).Infof("Deleted %d login tokens (%d likely additional expired token)", n, n-1)
}
return nil
}
// selectByToken returns the data associated with the given token. May return sql.ErrNoRows.
func (s *loginTokenStatements) selectByToken(ctx context.Context, token string) (*api.LoginTokenData, error) {
var data api.LoginTokenData
err := s.selectByTokenStmt.QueryRowContext(ctx, token, time.Now().UTC()).Scan(&data.UserID)
if err != nil {
return nil, err
}
return &data, nil
}