https://github.com/matrix-org/dendrite fork for cross-compile for ARM
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// Copyright 2017 Vector Creations Ltd
//
// 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 sqlite3
import (
"context"
"database/sql"
"encoding/json"
"errors"
"strconv"
"sync"
"time"
"github.com/matrix-org/dendrite/clientapi/auth/authtypes"
"github.com/matrix-org/dendrite/internal/sqlutil"
"github.com/matrix-org/dendrite/setup/config"
"github.com/matrix-org/dendrite/userapi/api"
"github.com/matrix-org/dendrite/userapi/storage/accounts/sqlite3/deltas"
"github.com/matrix-org/gomatrixserverlib"
"golang.org/x/crypto/bcrypt"
)
// Database represents an account database
type Database struct {
db *sql.DB
writer sqlutil.Writer
sqlutil.PartitionOffsetStatements
accounts accountsStatements
profiles profilesStatements
accountDatas accountDataStatements
threepids threepidStatements
openIDTokens tokenStatements
serverName gomatrixserverlib.ServerName
bcryptCost int
openIDTokenLifetimeMS int64
accountsMu sync.Mutex
profilesMu sync.Mutex
accountDatasMu sync.Mutex
threepidsMu sync.Mutex
}
// NewDatabase creates a new accounts and profiles database
func NewDatabase(dbProperties *config.DatabaseOptions, serverName gomatrixserverlib.ServerName, bcryptCost int, openIDTokenLifetimeMS int64) (*Database, error) {
db, err := sqlutil.Open(dbProperties)
if err != nil {
return nil, err
}
d := &Database{
serverName: serverName,
db: db,
writer: sqlutil.NewExclusiveWriter(),
bcryptCost: bcryptCost,
openIDTokenLifetimeMS: openIDTokenLifetimeMS,
}
// Create tables before executing migrations so we don't fail if the table is missing,
// and THEN prepare statements so we don't fail due to referencing new columns
if err = d.accounts.execSchema(db); err != nil {
return nil, err
}
m := sqlutil.NewMigrations()
deltas.LoadIsActive(m)
if err = m.RunDeltas(db, dbProperties); err != nil {
return nil, err
}
partitions := sqlutil.PartitionOffsetStatements{}
if err = partitions.Prepare(db, d.writer, "account"); err != nil {
return nil, err
}
if err = d.accounts.prepare(db, serverName); err != nil {
return nil, err
}
if err = d.profiles.prepare(db); err != nil {
return nil, err
}
if err = d.accountDatas.prepare(db); err != nil {
return nil, err
}
if err = d.threepids.prepare(db); err != nil {
return nil, err
}
if err = d.openIDTokens.prepare(db, serverName); err != nil {
return nil, err
}
return d, nil
}
// GetAccountByPassword returns the account associated with the given localpart and password.
// Returns sql.ErrNoRows if no account exists which matches the given localpart.
func (d *Database) GetAccountByPassword(
ctx context.Context, localpart, plaintextPassword string,
) (*api.Account, error) {
hash, err := d.accounts.selectPasswordHash(ctx, localpart)
if err != nil {
return nil, err
}
if err := bcrypt.CompareHashAndPassword([]byte(hash), []byte(plaintextPassword)); err != nil {
return nil, err
}
return d.accounts.selectAccountByLocalpart(ctx, localpart)
}
// GetProfileByLocalpart returns the profile associated with the given localpart.
// Returns sql.ErrNoRows if no profile exists which matches the given localpart.
func (d *Database) GetProfileByLocalpart(
ctx context.Context, localpart string,
) (*authtypes.Profile, error) {
return d.profiles.selectProfileByLocalpart(ctx, localpart)
}
// SetAvatarURL updates the avatar URL of the profile associated with the given
// localpart. Returns an error if something went wrong with the SQL query
func (d *Database) SetAvatarURL(
ctx context.Context, localpart string, avatarURL string,
) error {
d.profilesMu.Lock()
defer d.profilesMu.Unlock()
return d.writer.Do(d.db, nil, func(txn *sql.Tx) error {
return d.profiles.setAvatarURL(ctx, txn, localpart, avatarURL)
})
}
// SetDisplayName updates the display name of the profile associated with the given
// localpart. Returns an error if something went wrong with the SQL query
func (d *Database) SetDisplayName(
ctx context.Context, localpart string, displayName string,
) error {
d.profilesMu.Lock()
defer d.profilesMu.Unlock()
return d.writer.Do(d.db, nil, func(txn *sql.Tx) error {
return d.profiles.setDisplayName(ctx, txn, localpart, displayName)
})
}
// SetPassword sets the account password to the given hash.
func (d *Database) SetPassword(
ctx context.Context, localpart, plaintextPassword string,
) error {
hash, err := d.hashPassword(plaintextPassword)
if err != nil {
return err
}
err = d.accounts.updatePassword(ctx, localpart, hash)
return err
}
// CreateGuestAccount makes a new guest account and creates an empty profile
// for this account.
func (d *Database) CreateGuestAccount(ctx context.Context) (acc *api.Account, err error) {
// We need to lock so we sequentially create numeric localparts. If we don't, two calls to
// this function will cause the same number to be selected and one will fail with 'database is locked'
// when the first txn upgrades to a write txn. We also need to lock the account creation else we can
// race with CreateAccount
// We know we'll be the only process since this is sqlite ;) so a lock here will be all that is needed.
d.profilesMu.Lock()
d.accountDatasMu.Lock()
d.accountsMu.Lock()
defer d.profilesMu.Unlock()
defer d.accountDatasMu.Unlock()
defer d.accountsMu.Unlock()
err = d.writer.Do(d.db, nil, func(txn *sql.Tx) error {
var numLocalpart int64
numLocalpart, err = d.accounts.selectNewNumericLocalpart(ctx, txn)
if err != nil {
return err
}
localpart := strconv.FormatInt(numLocalpart, 10)
acc, err = d.createAccount(ctx, txn, localpart, "", "")
return err
})
return acc, err
}
// CreateAccount makes a new account with the given login name and password, and creates an empty profile
// for this account. If no password is supplied, the account will be a passwordless account. If the
// account already exists, it will return nil, ErrUserExists.
func (d *Database) CreateAccount(
ctx context.Context, localpart, plaintextPassword, appserviceID string,
) (acc *api.Account, err error) {
// Create one account at a time else we can get 'database is locked'.
d.profilesMu.Lock()
d.accountDatasMu.Lock()
d.accountsMu.Lock()
defer d.profilesMu.Unlock()
defer d.accountDatasMu.Unlock()
defer d.accountsMu.Unlock()
err = d.writer.Do(d.db, nil, func(txn *sql.Tx) error {
acc, err = d.createAccount(ctx, txn, localpart, plaintextPassword, appserviceID)
return err
})
return
}
// WARNING! This function assumes that the relevant mutexes have already
// been taken out by the caller (e.g. CreateAccount or CreateGuestAccount).
func (d *Database) createAccount(
ctx context.Context, txn *sql.Tx, localpart, plaintextPassword, appserviceID string,
) (*api.Account, error) {
var err error
var account *api.Account
// Generate a password hash if this is not a password-less user
hash := ""
if plaintextPassword != "" {
hash, err = d.hashPassword(plaintextPassword)
if err != nil {
return nil, err
}
}
if account, err = d.accounts.insertAccount(ctx, txn, localpart, hash, appserviceID); err != nil {
return nil, sqlutil.ErrUserExists
}
if err = d.profiles.insertProfile(ctx, txn, localpart); err != nil {
return nil, err
}
if err = d.accountDatas.insertAccountData(ctx, txn, localpart, "", "m.push_rules", json.RawMessage(`{
"global": {
"content": [],
"override": [],
"room": [],
"sender": [],
"underride": []
}
}`)); err != nil {
return nil, err
}
return account, nil
}
// SaveAccountData saves new account data for a given user and a given room.
// If the account data is not specific to a room, the room ID should be an empty string
// If an account data already exists for a given set (user, room, data type), it will
// update the corresponding row with the new content
// Returns a SQL error if there was an issue with the insertion/update
func (d *Database) SaveAccountData(
ctx context.Context, localpart, roomID, dataType string, content json.RawMessage,
) error {
d.accountDatasMu.Lock()
defer d.accountDatasMu.Unlock()
return d.writer.Do(d.db, nil, func(txn *sql.Tx) error {
return d.accountDatas.insertAccountData(ctx, txn, localpart, roomID, dataType, content)
})
}
// GetAccountData returns account data related to a given localpart
// If no account data could be found, returns an empty arrays
// Returns an error if there was an issue with the retrieval
func (d *Database) GetAccountData(ctx context.Context, localpart string) (
global map[string]json.RawMessage,
rooms map[string]map[string]json.RawMessage,
err error,
) {
return d.accountDatas.selectAccountData(ctx, localpart)
}
// GetAccountDataByType returns account data matching a given
// localpart, room ID and type.
// If no account data could be found, returns nil
// Returns an error if there was an issue with the retrieval
func (d *Database) GetAccountDataByType(
ctx context.Context, localpart, roomID, dataType string,
) (data json.RawMessage, err error) {
return d.accountDatas.selectAccountDataByType(
ctx, localpart, roomID, dataType,
)
}
// GetNewNumericLocalpart generates and returns a new unused numeric localpart
func (d *Database) GetNewNumericLocalpart(
ctx context.Context,
) (int64, error) {
return d.accounts.selectNewNumericLocalpart(ctx, nil)
}
func (d *Database) hashPassword(plaintext string) (hash string, err error) {
hashBytes, err := bcrypt.GenerateFromPassword([]byte(plaintext), d.bcryptCost)
return string(hashBytes), err
}
// Err3PIDInUse is the error returned when trying to save an association involving
// a third-party identifier which is already associated to a local user.
var Err3PIDInUse = errors.New("This third-party identifier is already in use")
// SaveThreePIDAssociation saves the association between a third party identifier
// and a local Matrix user (identified by the user's ID's local part).
// If the third-party identifier is already part of an association, returns Err3PIDInUse.
// Returns an error if there was a problem talking to the database.
func (d *Database) SaveThreePIDAssociation(
ctx context.Context, threepid, localpart, medium string,
) (err error) {
d.threepidsMu.Lock()
defer d.threepidsMu.Unlock()
return d.writer.Do(d.db, nil, func(txn *sql.Tx) error {
user, err := d.threepids.selectLocalpartForThreePID(
ctx, txn, threepid, medium,
)
if err != nil {
return err
}
if len(user) > 0 {
return Err3PIDInUse
}
return d.threepids.insertThreePID(ctx, txn, threepid, medium, localpart)
})
}
// RemoveThreePIDAssociation removes the association involving a given third-party
// identifier.
// If no association exists involving this third-party identifier, returns nothing.
// If there was a problem talking to the database, returns an error.
func (d *Database) RemoveThreePIDAssociation(
ctx context.Context, threepid string, medium string,
) (err error) {
d.threepidsMu.Lock()
defer d.threepidsMu.Unlock()
return d.writer.Do(d.db, nil, func(txn *sql.Tx) error {
return d.threepids.deleteThreePID(ctx, txn, threepid, medium)
})
}
// GetLocalpartForThreePID looks up the localpart associated with a given third-party
// identifier.
// If no association involves the given third-party idenfitier, returns an empty
// string.
// Returns an error if there was a problem talking to the database.
func (d *Database) GetLocalpartForThreePID(
ctx context.Context, threepid string, medium string,
) (localpart string, err error) {
return d.threepids.selectLocalpartForThreePID(ctx, nil, threepid, medium)
}
// GetThreePIDsForLocalpart looks up the third-party identifiers associated with
// a given local user.
// If no association is known for this user, returns an empty slice.
// Returns an error if there was an issue talking to the database.
func (d *Database) GetThreePIDsForLocalpart(
ctx context.Context, localpart string,
) (threepids []authtypes.ThreePID, err error) {
return d.threepids.selectThreePIDsForLocalpart(ctx, localpart)
}
// CheckAccountAvailability checks if the username/localpart is already present
// in the database.
// If the DB returns sql.ErrNoRows the Localpart isn't taken.
func (d *Database) CheckAccountAvailability(ctx context.Context, localpart string) (bool, error) {
_, err := d.accounts.selectAccountByLocalpart(ctx, localpart)
if err == sql.ErrNoRows {
return true, nil
}
return false, err
}
// GetAccountByLocalpart returns the account associated with the given localpart.
// This function assumes the request is authenticated or the account data is used only internally.
// Returns sql.ErrNoRows if no account exists which matches the given localpart.
func (d *Database) GetAccountByLocalpart(ctx context.Context, localpart string,
) (*api.Account, error) {
return d.accounts.selectAccountByLocalpart(ctx, localpart)
}
// SearchProfiles returns all profiles where the provided localpart or display name
// match any part of the profiles in the database.
func (d *Database) SearchProfiles(ctx context.Context, searchString string, limit int,
) ([]authtypes.Profile, error) {
return d.profiles.selectProfilesBySearch(ctx, searchString, limit)
}
// DeactivateAccount deactivates the user's account, removing all ability for the user to login again.
func (d *Database) DeactivateAccount(ctx context.Context, localpart string) (err error) {
return d.accounts.deactivateAccount(ctx, localpart)
}
// CreateOpenIDToken persists a new token that was issued for OpenID Connect
func (d *Database) CreateOpenIDToken(
ctx context.Context,
token, localpart string,
) (int64, error) {
expiresAtMS := time.Now().UnixNano()/int64(time.Millisecond) + d.openIDTokenLifetimeMS
err := d.writer.Do(d.db, nil, func(txn *sql.Tx) error {
return d.openIDTokens.insertToken(ctx, txn, token, localpart, expiresAtMS)
})
return expiresAtMS, err
}
// GetOpenIDTokenAttributes gets the attributes of issued an OIDC auth token
func (d *Database) GetOpenIDTokenAttributes(
ctx context.Context,
token string,
) (*api.OpenIDTokenAttributes, error) {
return d.openIDTokens.selectOpenIDTokenAtrributes(ctx, token)
}