385 lines
9.9 KiB
Go
385 lines
9.9 KiB
Go
package protocol
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import (
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"errors"
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"fmt"
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"strconv"
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"strings"
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"github.com/status-im/status-go/protocol/protobuf"
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"github.com/status-im/status-go/protocol/v1"
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)
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const maxChatMessageTextLength = 4096
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const maxStatusMessageText = 128
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// maxWhisperDrift is how many milliseconds we allow the clock value to differ
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// from whisperTimestamp
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const maxWhisperFutureDriftMs uint64 = 120000
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func validateClockValue(clock uint64, whisperTimestamp uint64) error {
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if clock == 0 {
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return errors.New("clock can't be 0")
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}
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if clock > whisperTimestamp && clock-whisperTimestamp > maxWhisperFutureDriftMs {
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return errors.New("clock value too high")
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}
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return nil
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}
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func ValidateMembershipUpdateMessage(message *protocol.MembershipUpdateMessage, timeNowMs uint64) error {
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for _, e := range message.Events {
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if err := validateClockValue(e.ClockValue, timeNowMs); err != nil {
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return err
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}
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}
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return nil
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}
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func ValidateStatusUpdate(message *protobuf.StatusUpdate) error {
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if message == nil {
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return errors.New("message can't be nil")
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}
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if message.Clock == 0 {
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return errors.New("clock can't be 0")
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}
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if message.StatusType == protobuf.StatusUpdate_UNKNOWN_STATUS_TYPE {
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return errors.New("unknown status type")
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}
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if len([]rune(message.CustomText)) > maxStatusMessageText {
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return fmt.Errorf("custom text shouldn't be longer than %d", maxStatusMessageText)
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}
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return nil
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}
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func ValidateEditMessage(message *protobuf.EditMessage) error {
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if message == nil {
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return errors.New("message can't be nil")
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}
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if message.Clock == 0 {
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return errors.New("clock can't be 0")
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}
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if len(message.ChatId) == 0 {
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return errors.New("chat-id can't be empty")
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}
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if len(message.MessageId) == 0 {
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return errors.New("message-id can't be empty")
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}
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if message.MessageType == protobuf.MessageType_UNKNOWN_MESSAGE_TYPE || message.MessageType == protobuf.MessageType_SYSTEM_MESSAGE_PRIVATE_GROUP {
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return errors.New("unknown message type")
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}
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return ValidateText(message.Text)
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}
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func ValidateDeleteMessage(message *protobuf.DeleteMessage) error {
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if message == nil {
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return errors.New("message can't be nil")
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}
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if len(message.ChatId) == 0 {
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return errors.New("chat-id can't be empty")
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}
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if len(message.MessageId) == 0 {
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return errors.New("message-id can't be empty")
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}
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if message.MessageType == protobuf.MessageType_UNKNOWN_MESSAGE_TYPE || message.MessageType == protobuf.MessageType_SYSTEM_MESSAGE_PRIVATE_GROUP {
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return errors.New("unknown message type")
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}
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return nil
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}
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func ValidateDeleteForMeMessage(message *protobuf.SyncDeleteForMeMessage) error {
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if message == nil {
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return errors.New("message can't be nil")
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}
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if len(message.MessageId) == 0 {
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return errors.New("message-id can't be empty")
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}
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return nil
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}
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func ValidateReceivedPairInstallation(message *protobuf.SyncPairInstallation, whisperTimestamp uint64) error {
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if err := validateClockValue(message.Clock, whisperTimestamp); err != nil {
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return err
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}
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if len(strings.TrimSpace(message.Name)) == 0 {
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return errors.New("name can't be empty")
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}
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if len(strings.TrimSpace(message.DeviceType)) == 0 {
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return errors.New("device type can't be empty")
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}
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if len(strings.TrimSpace(message.InstallationId)) == 0 {
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return errors.New("installationId can't be empty")
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}
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return nil
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}
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func ValidateReceivedSendTransaction(message *protobuf.SendTransaction, whisperTimestamp uint64) error {
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if err := validateClockValue(message.Clock, whisperTimestamp); err != nil {
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return err
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}
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if len(strings.TrimSpace(message.TransactionHash)) == 0 {
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return errors.New("transaction hash can't be empty")
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}
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if message.Signature == nil {
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return errors.New("signature can't be nil")
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}
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return nil
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}
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func ValidateReceivedRequestAddressForTransaction(message *protobuf.RequestAddressForTransaction, whisperTimestamp uint64) error {
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if err := validateClockValue(message.Clock, whisperTimestamp); err != nil {
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return err
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}
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if len(strings.TrimSpace(message.Value)) == 0 {
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return errors.New("value can't be empty")
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}
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_, err := strconv.ParseFloat(message.Value, 64)
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if err != nil {
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return err
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}
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return nil
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}
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func ValidateReceivedRequestTransaction(message *protobuf.RequestTransaction, whisperTimestamp uint64) error {
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if err := validateClockValue(message.Clock, whisperTimestamp); err != nil {
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return err
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}
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if len(strings.TrimSpace(message.Value)) == 0 {
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return errors.New("value can't be empty")
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}
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if len(strings.TrimSpace(message.Address)) == 0 {
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return errors.New("address can't be empty")
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}
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_, err := strconv.ParseFloat(message.Value, 64)
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if err != nil {
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return err
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}
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return nil
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}
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func ValidateReceivedAcceptRequestAddressForTransaction(message *protobuf.AcceptRequestAddressForTransaction, whisperTimestamp uint64) error {
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if err := validateClockValue(message.Clock, whisperTimestamp); err != nil {
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return err
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}
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if len(message.Id) == 0 {
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return errors.New("messageID can't be empty")
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}
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if len(strings.TrimSpace(message.Address)) == 0 {
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return errors.New("address can't be empty")
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}
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return nil
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}
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func ValidateReceivedDeclineRequestAddressForTransaction(message *protobuf.DeclineRequestAddressForTransaction, whisperTimestamp uint64) error {
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if err := validateClockValue(message.Clock, whisperTimestamp); err != nil {
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return err
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}
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if len(message.Id) == 0 {
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return errors.New("messageID can't be empty")
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}
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return nil
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}
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func ValidateReceivedDeclineRequestTransaction(message *protobuf.DeclineRequestTransaction, whisperTimestamp uint64) error {
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if err := validateClockValue(message.Clock, whisperTimestamp); err != nil {
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return err
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}
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if len(message.Id) == 0 {
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return errors.New("messageID can't be empty")
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}
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return nil
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}
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func ValidateText(text string) error {
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if len(strings.TrimSpace(text)) == 0 {
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return errors.New("text can't be empty")
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}
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if len([]rune(text)) > maxChatMessageTextLength {
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return fmt.Errorf("text shouldn't be longer than %d", maxChatMessageTextLength)
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}
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return nil
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}
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func ValidateReceivedChatMessage(message *protobuf.ChatMessage, whisperTimestamp uint64) error {
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if err := validateClockValue(message.Clock, whisperTimestamp); err != nil {
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return err
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}
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if message.Timestamp == 0 {
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return errors.New("timestamp can't be 0")
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}
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if message.ContentType != protobuf.ChatMessage_DISCORD_MESSAGE &&
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message.ContentType != protobuf.ChatMessage_BRIDGE_MESSAGE &&
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(message.ContentType != protobuf.ChatMessage_IMAGE || message.Text != "") {
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if err := ValidateText(message.Text); err != nil {
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return err
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}
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}
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if len(message.ChatId) == 0 {
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return errors.New("chatId can't be empty")
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}
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if message.MessageType == protobuf.MessageType_UNKNOWN_MESSAGE_TYPE || message.MessageType == protobuf.MessageType_SYSTEM_MESSAGE_PRIVATE_GROUP {
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return errors.New("unknown message type")
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}
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switch message.ContentType {
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case protobuf.ChatMessage_UNKNOWN_CONTENT_TYPE:
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return errors.New("unknown content type")
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case protobuf.ChatMessage_TRANSACTION_COMMAND:
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return errors.New("can't receive request address for transaction from others")
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case protobuf.ChatMessage_STICKER:
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if message.Payload == nil {
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return errors.New("no sticker content")
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}
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sticker := message.GetSticker()
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if sticker == nil {
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return errors.New("no sticker content")
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}
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if len(sticker.Hash) == 0 {
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return errors.New("sticker hash not set")
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}
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case protobuf.ChatMessage_IMAGE:
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if message.Payload == nil {
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return errors.New("no image content")
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}
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image := message.GetImage()
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if image == nil {
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return errors.New("no image content")
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}
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if len(image.Payload) == 0 {
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return errors.New("image payload empty")
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}
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if image.Format == protobuf.ImageFormat_UNKNOWN_IMAGE_FORMAT {
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return errors.New("image type unknown")
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}
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case protobuf.ChatMessage_BRIDGE_MESSAGE:
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if message.Payload == nil {
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return errors.New("no bridge message content")
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}
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bridgeMessage := message.GetBridgeMessage()
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if bridgeMessage == nil {
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return errors.New("no bridge message content")
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}
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if len(bridgeMessage.UserName) == 0 {
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return errors.New("no username")
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}
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if len(bridgeMessage.BridgeName) == 0 {
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return errors.New("no bridge name")
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}
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if len(bridgeMessage.Content) == 0 {
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return errors.New("no bridge message content text")
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}
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}
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if message.ContentType == protobuf.ChatMessage_AUDIO {
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if message.Payload == nil {
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return errors.New("no audio content")
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}
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audio := message.GetAudio()
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if audio == nil {
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return errors.New("no audio content")
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}
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if len(audio.Payload) == 0 {
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return errors.New("audio payload empty")
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}
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if audio.Type == protobuf.AudioMessage_UNKNOWN_AUDIO_TYPE {
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return errors.New("audio type unknown")
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}
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}
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if message.ContentType == protobuf.ChatMessage_SYSTEM_MESSAGE_CONTENT_PRIVATE_GROUP {
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return errors.New("private group system message content type not allowed")
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}
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if message.ContentType == protobuf.ChatMessage_SYSTEM_MESSAGE_MUTUAL_EVENT_SENT ||
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message.ContentType == protobuf.ChatMessage_SYSTEM_MESSAGE_MUTUAL_EVENT_ACCEPTED ||
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message.ContentType == protobuf.ChatMessage_SYSTEM_MESSAGE_MUTUAL_EVENT_REMOVED {
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return errors.New("mutual state event system message content type not allowed")
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}
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if err := ValidateDisplayName(&message.DisplayName); err != nil {
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return err
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}
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return nil
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}
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func ValidateReceivedEmojiReaction(emoji *protobuf.EmojiReaction, whisperTimestamp uint64) error {
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if err := validateClockValue(emoji.Clock, whisperTimestamp); err != nil {
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return err
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}
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if len(emoji.MessageId) == 0 {
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return errors.New("message-id can't be empty")
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}
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if len(emoji.ChatId) == 0 {
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return errors.New("chat-id can't be empty")
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}
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if emoji.Type == protobuf.EmojiReaction_UNKNOWN_EMOJI_REACTION_TYPE {
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return errors.New("unknown emoji reaction type")
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}
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if emoji.MessageType == protobuf.MessageType_UNKNOWN_MESSAGE_TYPE {
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return errors.New("unknown message type")
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}
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return nil
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}
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func ValidateReceivedGroupChatInvitation(invitation *protobuf.GroupChatInvitation) error {
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if len(invitation.ChatId) == 0 {
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return errors.New("chat-id can't be empty")
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}
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return nil
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}
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