Class FingerprintInteractor

Extension/src/SSH/commandInteractors.ts:62–112

}

export class FingerprintInteractor implements IInteractor {
    static ID = 'fingerprint';

    constructor(private readonly hostName: string, private readonly confirmationProvider: IFingerprintConfirmationProvider) { }

    get id(): string {
        return FingerprintInteractor.ID;
    }

    async onData(data: string, cancelToken?: vscode.CancellationToken, extraDetails?: IInteractorDataDetails): Promise<IInteraction> {
        const fingerprintMatcher: RegExp = /fingerprint\sis\s(.+)\./;

        const result: IInteraction = { postAction: 'keep' };
        data = data.trim();

        let fingerprintMatch: RegExpMatchArray | null;
        if (
            data.includes('Are you sure you want to continue connecting') &&
            (fingerprintMatch = data.match(fingerprintMatcher))
        ) {
            result.postAction = 'consume';
            const confirmation: string | undefined = await this.confirmationProvider(
                this.hostName,
                fingerprintMatch[1],
                cancelToken
            );
            if (confirmation) {
                result.response = confirmation;
            } else {
                result.canceled = true;
            }
        } else if (
            isWindows &&
            (data.includes('The authenticity of host ') || (data === '' && extraDetails?.detectedServerKey))
        ) {
            // hack for #1195
            // First line local server case (git ssh only gives the first line over ssh_askpass)
            const key: string = extraDetails?.detectedServerKey || '(unknown)';

            result.postAction = 'consume';
            const confirmation: string | undefined = await this.confirmationProvider(this.hostName, key, cancelToken);
            if (confirmation) {
                result.response = confirmation;
            } else {
                result.canceled = true;
            }
        }

        return result;
    }
}

export class DifferingHostKeyInteractor implements IInteractor {
    static ID = 'differing host key';