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Alias key backup endpoints onto /unstable, fix key backup bugs (#1947)

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* Default /unstable requests to stable endpoints if not overridden specifically with a custom route

* Rewrite URL

* Try something different

* Fix routing manually

* Fix selectLatestVersionSQL

* Don't return 0 if no backup version exists

* Log more useful error

* fix up replace keys check

* Don't enforce uniqueness on e2e_room_keys_versions_idx

Co-authored-by: kegsay <kegan@matrix.org>
This commit is contained in:
Neil Alexander 2021-07-28 10:25:45 +01:00 committed by GitHub
parent 3e01a88a0c
commit 9e4618000e
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GPG key ID: 4AEE18F83AFDEB23
8 changed files with 187 additions and 161 deletions
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292
clientapi/routing/routing.go
View file

@ -898,157 +898,171 @@ func Setup(
// Key Backup Versions (Metadata) // Key Backup Versions (Metadata)
r0mux.Handle("/room_keys/version/{version}", getBackupKeysVersion := httputil.MakeAuthAPI("get_backup_keys_version", userAPI, func(req *http.Request, device *userapi.Device) util.JSONResponse {
httputil.MakeAuthAPI("get_backup_keys_version", userAPI, func(req *http.Request, device *userapi.Device) util.JSONResponse { vars, err := httputil.URLDecodeMapValues(mux.Vars(req))
vars, err := httputil.URLDecodeMapValues(mux.Vars(req)) if err != nil {
if err != nil { return util.ErrorResponse(err)
return util.ErrorResponse(err) }
} return KeyBackupVersion(req, userAPI, device, vars["version"])
return KeyBackupVersion(req, userAPI, device, vars["version"]) })
}),
).Methods(http.MethodGet, http.MethodOptions) getLatestBackupKeysVersion := httputil.MakeAuthAPI("get_latest_backup_keys_version", userAPI, func(req *http.Request, device *userapi.Device) util.JSONResponse {
r0mux.Handle("/room_keys/version", return KeyBackupVersion(req, userAPI, device, "")
httputil.MakeAuthAPI("get_latest_backup_keys_version", userAPI, func(req *http.Request, device *userapi.Device) util.JSONResponse { })
return KeyBackupVersion(req, userAPI, device, "")
}), putBackupKeysVersion := httputil.MakeAuthAPI("put_backup_keys_version", userAPI, func(req *http.Request, device *userapi.Device) util.JSONResponse {
).Methods(http.MethodGet, http.MethodOptions) vars, err := httputil.URLDecodeMapValues(mux.Vars(req))
r0mux.Handle("/room_keys/version/{version}", if err != nil {
httputil.MakeAuthAPI("put_backup_keys_version", userAPI, func(req *http.Request, device *userapi.Device) util.JSONResponse { return util.ErrorResponse(err)
vars, err := httputil.URLDecodeMapValues(mux.Vars(req)) }
if err != nil { return ModifyKeyBackupVersionAuthData(req, userAPI, device, vars["version"])
return util.ErrorResponse(err) })
}
return ModifyKeyBackupVersionAuthData(req, userAPI, device, vars["version"]) deleteBackupKeysVersion := httputil.MakeAuthAPI("delete_backup_keys_version", userAPI, func(req *http.Request, device *userapi.Device) util.JSONResponse {
}), vars, err := httputil.URLDecodeMapValues(mux.Vars(req))
).Methods(http.MethodPut) if err != nil {
r0mux.Handle("/room_keys/version/{version}", return util.ErrorResponse(err)
httputil.MakeAuthAPI("delete_backup_keys_version", userAPI, func(req *http.Request, device *userapi.Device) util.JSONResponse { }
vars, err := httputil.URLDecodeMapValues(mux.Vars(req)) return DeleteKeyBackupVersion(req, userAPI, device, vars["version"])
if err != nil { })
return util.ErrorResponse(err)
} postNewBackupKeysVersion := httputil.MakeAuthAPI("post_new_backup_keys_version", userAPI, func(req *http.Request, device *userapi.Device) util.JSONResponse {
return DeleteKeyBackupVersion(req, userAPI, device, vars["version"]) return CreateKeyBackupVersion(req, userAPI, device)
}), })
).Methods(http.MethodDelete)
r0mux.Handle("/room_keys/version", r0mux.Handle("/room_keys/version/{version}", getBackupKeysVersion).Methods(http.MethodGet, http.MethodOptions)
httputil.MakeAuthAPI("post_new_backup_keys_version", userAPI, func(req *http.Request, device *userapi.Device) util.JSONResponse { r0mux.Handle("/room_keys/version", getLatestBackupKeysVersion).Methods(http.MethodGet, http.MethodOptions)
return CreateKeyBackupVersion(req, userAPI, device) r0mux.Handle("/room_keys/version/{version}", putBackupKeysVersion).Methods(http.MethodPut)
}), r0mux.Handle("/room_keys/version/{version}", deleteBackupKeysVersion).Methods(http.MethodDelete)
).Methods(http.MethodPost, http.MethodOptions) r0mux.Handle("/room_keys/version", postNewBackupKeysVersion).Methods(http.MethodPost, http.MethodOptions)
unstableMux.Handle("/room_keys/version/{version}", getBackupKeysVersion).Methods(http.MethodGet, http.MethodOptions)
unstableMux.Handle("/room_keys/version", getLatestBackupKeysVersion).Methods(http.MethodGet, http.MethodOptions)
unstableMux.Handle("/room_keys/version/{version}", putBackupKeysVersion).Methods(http.MethodPut)
unstableMux.Handle("/room_keys/version/{version}", deleteBackupKeysVersion).Methods(http.MethodDelete)
unstableMux.Handle("/room_keys/version", postNewBackupKeysVersion).Methods(http.MethodPost, http.MethodOptions)
// Inserting E2E Backup Keys // Inserting E2E Backup Keys
// Bulk room and session // Bulk room and session
r0mux.Handle("/room_keys/keys", putBackupKeys := httputil.MakeAuthAPI("put_backup_keys", userAPI, func(req *http.Request, device *userapi.Device) util.JSONResponse {
httputil.MakeAuthAPI("put_backup_keys", userAPI, func(req *http.Request, device *userapi.Device) util.JSONResponse { version := req.URL.Query().Get("version")
version := req.URL.Query().Get("version") if version == "" {
if version == "" { return util.JSONResponse{
return util.JSONResponse{ Code: 400,
Code: 400, JSON: jsonerror.InvalidArgumentValue("version must be specified"),
JSON: jsonerror.InvalidArgumentValue("version must be specified"),
}
} }
var reqBody keyBackupSessionRequest }
resErr := clientutil.UnmarshalJSONRequest(req, &reqBody) var reqBody keyBackupSessionRequest
if resErr != nil { resErr := clientutil.UnmarshalJSONRequest(req, &reqBody)
return *resErr if resErr != nil {
} return *resErr
return UploadBackupKeys(req, userAPI, device, version, &reqBody) }
}), return UploadBackupKeys(req, userAPI, device, version, &reqBody)
).Methods(http.MethodPut) })
// Single room bulk session // Single room bulk session
r0mux.Handle("/room_keys/keys/{roomID}", putBackupKeysRoom := httputil.MakeAuthAPI("put_backup_keys_room", userAPI, func(req *http.Request, device *userapi.Device) util.JSONResponse {
httputil.MakeAuthAPI("put_backup_keys_room", userAPI, func(req *http.Request, device *userapi.Device) util.JSONResponse { vars, err := httputil.URLDecodeMapValues(mux.Vars(req))
vars, err := httputil.URLDecodeMapValues(mux.Vars(req)) if err != nil {
if err != nil { return util.ErrorResponse(err)
return util.ErrorResponse(err) }
version := req.URL.Query().Get("version")
if version == "" {
return util.JSONResponse{
Code: 400,
JSON: jsonerror.InvalidArgumentValue("version must be specified"),
} }
version := req.URL.Query().Get("version") }
if version == "" { roomID := vars["roomID"]
return util.JSONResponse{ var reqBody keyBackupSessionRequest
Code: 400, reqBody.Rooms = make(map[string]struct {
JSON: jsonerror.InvalidArgumentValue("version must be specified"), Sessions map[string]userapi.KeyBackupSession `json:"sessions"`
} })
} reqBody.Rooms[roomID] = struct {
roomID := vars["roomID"] Sessions map[string]userapi.KeyBackupSession `json:"sessions"`
var reqBody keyBackupSessionRequest }{
reqBody.Rooms = make(map[string]struct { Sessions: map[string]userapi.KeyBackupSession{},
Sessions map[string]userapi.KeyBackupSession `json:"sessions"` }
}) body := reqBody.Rooms[roomID]
reqBody.Rooms[roomID] = struct { resErr := clientutil.UnmarshalJSONRequest(req, &body)
Sessions map[string]userapi.KeyBackupSession `json:"sessions"` if resErr != nil {
}{ return *resErr
Sessions: map[string]userapi.KeyBackupSession{}, }
} reqBody.Rooms[roomID] = body
body := reqBody.Rooms[roomID] return UploadBackupKeys(req, userAPI, device, version, &reqBody)
resErr := clientutil.UnmarshalJSONRequest(req, &body) })
if resErr != nil {
return *resErr
}
reqBody.Rooms[roomID] = body
return UploadBackupKeys(req, userAPI, device, version, &reqBody)
}),
).Methods(http.MethodPut)
// Single room, single session // Single room, single session
r0mux.Handle("/room_keys/keys/{roomID}/{sessionID}", putBackupKeysRoomSession := httputil.MakeAuthAPI("put_backup_keys_room_session", userAPI, func(req *http.Request, device *userapi.Device) util.JSONResponse {
httputil.MakeAuthAPI("put_backup_keys_room_session", userAPI, func(req *http.Request, device *userapi.Device) util.JSONResponse { vars, err := httputil.URLDecodeMapValues(mux.Vars(req))
vars, err := httputil.URLDecodeMapValues(mux.Vars(req)) if err != nil {
if err != nil { return util.ErrorResponse(err)
return util.ErrorResponse(err) }
version := req.URL.Query().Get("version")
if version == "" {
return util.JSONResponse{
Code: 400,
JSON: jsonerror.InvalidArgumentValue("version must be specified"),
} }
version := req.URL.Query().Get("version") }
if version == "" { var reqBody userapi.KeyBackupSession
return util.JSONResponse{ resErr := clientutil.UnmarshalJSONRequest(req, &reqBody)
Code: 400, if resErr != nil {
JSON: jsonerror.InvalidArgumentValue("version must be specified"), return *resErr
} }
} roomID := vars["roomID"]
var reqBody userapi.KeyBackupSession sessionID := vars["sessionID"]
resErr := clientutil.UnmarshalJSONRequest(req, &reqBody) var keyReq keyBackupSessionRequest
if resErr != nil { keyReq.Rooms = make(map[string]struct {
return *resErr Sessions map[string]userapi.KeyBackupSession `json:"sessions"`
} })
roomID := vars["roomID"] keyReq.Rooms[roomID] = struct {
sessionID := vars["sessionID"] Sessions map[string]userapi.KeyBackupSession `json:"sessions"`
var keyReq keyBackupSessionRequest }{
keyReq.Rooms = make(map[string]struct { Sessions: make(map[string]userapi.KeyBackupSession),
Sessions map[string]userapi.KeyBackupSession `json:"sessions"` }
}) keyReq.Rooms[roomID].Sessions[sessionID] = reqBody
keyReq.Rooms[roomID] = struct { return UploadBackupKeys(req, userAPI, device, version, &keyReq)
Sessions map[string]userapi.KeyBackupSession `json:"sessions"` })
}{
Sessions: make(map[string]userapi.KeyBackupSession), r0mux.Handle("/room_keys/keys", putBackupKeys).Methods(http.MethodPut)
} r0mux.Handle("/room_keys/keys/{roomID}", putBackupKeysRoom).Methods(http.MethodPut)
keyReq.Rooms[roomID].Sessions[sessionID] = reqBody r0mux.Handle("/room_keys/keys/{roomID}/{sessionID}", putBackupKeysRoomSession).Methods(http.MethodPut)
return UploadBackupKeys(req, userAPI, device, version, &keyReq)
}), unstableMux.Handle("/room_keys/keys", putBackupKeys).Methods(http.MethodPut)
).Methods(http.MethodPut) unstableMux.Handle("/room_keys/keys/{roomID}", putBackupKeysRoom).Methods(http.MethodPut)
unstableMux.Handle("/room_keys/keys/{roomID}/{sessionID}", putBackupKeysRoomSession).Methods(http.MethodPut)
// Querying E2E Backup Keys // Querying E2E Backup Keys
r0mux.Handle("/room_keys/keys", getBackupKeys := httputil.MakeAuthAPI("get_backup_keys", userAPI, func(req *http.Request, device *userapi.Device) util.JSONResponse {
httputil.MakeAuthAPI("get_backup_keys", userAPI, func(req *http.Request, device *userapi.Device) util.JSONResponse { return GetBackupKeys(req, userAPI, device, req.URL.Query().Get("version"), "", "")
return GetBackupKeys(req, userAPI, device, req.URL.Query().Get("version"), "", "") })
}),
).Methods(http.MethodGet, http.MethodOptions) getBackupKeysRoom := httputil.MakeAuthAPI("get_backup_keys_room", userAPI, func(req *http.Request, device *userapi.Device) util.JSONResponse {
r0mux.Handle("/room_keys/keys/{roomID}", vars, err := httputil.URLDecodeMapValues(mux.Vars(req))
httputil.MakeAuthAPI("get_backup_keys_room", userAPI, func(req *http.Request, device *userapi.Device) util.JSONResponse { if err != nil {
vars, err := httputil.URLDecodeMapValues(mux.Vars(req)) return util.ErrorResponse(err)
if err != nil { }
return util.ErrorResponse(err) return GetBackupKeys(req, userAPI, device, req.URL.Query().Get("version"), vars["roomID"], "")
} })
return GetBackupKeys(req, userAPI, device, req.URL.Query().Get("version"), vars["roomID"], "")
}), getBackupKeysRoomSession := httputil.MakeAuthAPI("get_backup_keys_room_session", userAPI, func(req *http.Request, device *userapi.Device) util.JSONResponse {
).Methods(http.MethodGet, http.MethodOptions) vars, err := httputil.URLDecodeMapValues(mux.Vars(req))
r0mux.Handle("/room_keys/keys/{roomID}/{sessionID}", if err != nil {
httputil.MakeAuthAPI("get_backup_keys_room_session", userAPI, func(req *http.Request, device *userapi.Device) util.JSONResponse { return util.ErrorResponse(err)
vars, err := httputil.URLDecodeMapValues(mux.Vars(req)) }
if err != nil { return GetBackupKeys(req, userAPI, device, req.URL.Query().Get("version"), vars["roomID"], vars["sessionID"])
return util.ErrorResponse(err) })
}
return GetBackupKeys(req, userAPI, device, req.URL.Query().Get("version"), vars["roomID"], vars["sessionID"]) r0mux.Handle("/room_keys/keys", getBackupKeys).Methods(http.MethodGet, http.MethodOptions)
}), r0mux.Handle("/room_keys/keys/{roomID}", getBackupKeysRoom).Methods(http.MethodGet, http.MethodOptions)
).Methods(http.MethodGet, http.MethodOptions) r0mux.Handle("/room_keys/keys/{roomID}/{sessionID}", getBackupKeysRoomSession).Methods(http.MethodGet, http.MethodOptions)
unstableMux.Handle("/room_keys/keys", getBackupKeys).Methods(http.MethodGet, http.MethodOptions)
unstableMux.Handle("/room_keys/keys/{roomID}", getBackupKeysRoom).Methods(http.MethodGet, http.MethodOptions)
unstableMux.Handle("/room_keys/keys/{roomID}/{sessionID}", getBackupKeysRoomSession).Methods(http.MethodGet, http.MethodOptions)
// Deleting E2E Backup Keys // Deleting E2E Backup Keys

10
userapi/api/api.go
View file

@ -72,13 +72,11 @@ func (a *KeyBackupSession) ShouldReplaceRoomKey(newKey *KeyBackupSession) bool {
// "if the keys have different values for is_verified, then it will keep the key that has is_verified set to true" // "if the keys have different values for is_verified, then it will keep the key that has is_verified set to true"
if newKey.IsVerified && !a.IsVerified { if newKey.IsVerified && !a.IsVerified {
return true return true
} } else if newKey.FirstMessageIndex < a.FirstMessageIndex {
// "if they have the same values for is_verified, then it will keep the key with a lower first_message_index" // "if they have the same values for is_verified, then it will keep the key with a lower first_message_index"
if newKey.FirstMessageIndex < a.FirstMessageIndex {
return true return true
} } else if newKey.ForwardedCount < a.ForwardedCount {
// "and finally, is is_verified and first_message_index are equal, then it will keep the key with a lower forwarded_count" // "and finally, is is_verified and first_message_index are equal, then it will keep the key with a lower forwarded_count"
if newKey.ForwardedCount < a.ForwardedCount {
return true return true
} }
return false return false

2
userapi/storage/accounts/postgres/key_backup_table.go
View file

@ -36,7 +36,7 @@ CREATE TABLE IF NOT EXISTS account_e2e_room_keys (
session_data TEXT NOT NULL session_data TEXT NOT NULL
); );
CREATE UNIQUE INDEX IF NOT EXISTS e2e_room_keys_idx ON account_e2e_room_keys(user_id, room_id, session_id, version); CREATE UNIQUE INDEX IF NOT EXISTS e2e_room_keys_idx ON account_e2e_room_keys(user_id, room_id, session_id, version);
CREATE UNIQUE INDEX IF NOT EXISTS e2e_room_keys_versions_idx ON account_e2e_room_keys(user_id, version); CREATE INDEX IF NOT EXISTS e2e_room_keys_versions_idx ON account_e2e_room_keys(user_id, version);
` `
const insertBackupKeySQL = "" + const insertBackupKeySQL = "" +

17
userapi/storage/accounts/postgres/key_backup_version_table.go
View file

@ -146,12 +146,19 @@ func (s *keyBackupVersionStatements) selectKeyBackup(
) (versionResult, algorithm string, authData json.RawMessage, etag string, deleted bool, err error) { ) (versionResult, algorithm string, authData json.RawMessage, etag string, deleted bool, err error) {
var versionInt int64 var versionInt int64
if version == "" { if version == "" {
err = txn.Stmt(s.selectLatestVersionStmt).QueryRowContext(ctx, userID).Scan(&versionInt) var v *int64 // allows nulls
if err = txn.Stmt(s.selectLatestVersionStmt).QueryRowContext(ctx, userID).Scan(&v); err != nil {
return
}
if v == nil {
err = sql.ErrNoRows
return
}
versionInt = *v
} else { } else {
versionInt, err = strconv.ParseInt(version, 10, 64) if versionInt, err = strconv.ParseInt(version, 10, 64); err != nil {
} return
if err != nil { }
return
} }
versionResult = strconv.FormatInt(versionInt, 10) versionResult = strconv.FormatInt(versionInt, 10)
var deletedInt int var deletedInt int

4
userapi/storage/accounts/postgres/storage.go
View file

@ -479,7 +479,7 @@ func (d *Database) UpsertBackupKeys(
err = d.keyBackups.updateBackupKey(ctx, txn, userID, version, newKey) err = d.keyBackups.updateBackupKey(ctx, txn, userID, version, newKey)
changed = true changed = true
if err != nil { if err != nil {
return err return fmt.Errorf("d.keyBackups.updateBackupKey: %w", err)
} }
} }
// if we shouldn't replace the key we do nothing with it // if we shouldn't replace the key we do nothing with it
@ -490,7 +490,7 @@ func (d *Database) UpsertBackupKeys(
err = d.keyBackups.insertBackupKey(ctx, txn, userID, version, newKey) err = d.keyBackups.insertBackupKey(ctx, txn, userID, version, newKey)
changed = true changed = true
if err != nil { if err != nil {
return err return fmt.Errorf("d.keyBackups.insertBackupKey: %w", err)
} }
} }

2
userapi/storage/accounts/sqlite3/key_backup_table.go
View file

@ -36,7 +36,7 @@ CREATE TABLE IF NOT EXISTS account_e2e_room_keys (
session_data TEXT NOT NULL session_data TEXT NOT NULL
); );
CREATE UNIQUE INDEX IF NOT EXISTS e2e_room_keys_idx ON account_e2e_room_keys(user_id, room_id, session_id, version); CREATE UNIQUE INDEX IF NOT EXISTS e2e_room_keys_idx ON account_e2e_room_keys(user_id, room_id, session_id, version);
CREATE UNIQUE INDEX IF NOT EXISTS e2e_room_keys_versions_idx ON account_e2e_room_keys(user_id, version); CREATE INDEX IF NOT EXISTS e2e_room_keys_versions_idx ON account_e2e_room_keys(user_id, version);
` `
const insertBackupKeySQL = "" + const insertBackupKeySQL = "" +

17
userapi/storage/accounts/sqlite3/key_backup_version_table.go
View file

@ -144,12 +144,19 @@ func (s *keyBackupVersionStatements) selectKeyBackup(
) (versionResult, algorithm string, authData json.RawMessage, etag string, deleted bool, err error) { ) (versionResult, algorithm string, authData json.RawMessage, etag string, deleted bool, err error) {
var versionInt int64 var versionInt int64
if version == "" { if version == "" {
err = txn.Stmt(s.selectLatestVersionStmt).QueryRowContext(ctx, userID).Scan(&versionInt) var v *int64 // allows nulls
if err = txn.Stmt(s.selectLatestVersionStmt).QueryRowContext(ctx, userID).Scan(&v); err != nil {
return
}
if v == nil {
err = sql.ErrNoRows
return
}
versionInt = *v
} else { } else {
versionInt, err = strconv.ParseInt(version, 10, 64) if versionInt, err = strconv.ParseInt(version, 10, 64); err != nil {
} return
if err != nil { }
return
} }
versionResult = strconv.FormatInt(versionInt, 10) versionResult = strconv.FormatInt(versionInt, 10)
var deletedInt int var deletedInt int

4
userapi/storage/accounts/sqlite3/storage.go
View file

@ -520,7 +520,7 @@ func (d *Database) UpsertBackupKeys(
err = d.keyBackups.updateBackupKey(ctx, txn, userID, version, newKey) err = d.keyBackups.updateBackupKey(ctx, txn, userID, version, newKey)
changed = true changed = true
if err != nil { if err != nil {
return err return fmt.Errorf("d.keyBackups.updateBackupKey: %w", err)
} }
} }
// if we shouldn't replace the key we do nothing with it // if we shouldn't replace the key we do nothing with it
@ -531,7 +531,7 @@ func (d *Database) UpsertBackupKeys(
err = d.keyBackups.insertBackupKey(ctx, txn, userID, version, newKey) err = d.keyBackups.insertBackupKey(ctx, txn, userID, version, newKey)
changed = true changed = true
if err != nil { if err != nil {
return err return fmt.Errorf("d.keyBackups.insertBackupKey: %w", err)
} }
} }