MessageCryptoStructureDetector.java 文件源码

@VisibleForTesting
static boolean isPartPgpInlineEncryptedOrSigned(Part part) {
    if (!part.isMimeType(TEXT_PLAIN) && !part.isMimeType(APPLICATION_PGP)) {
        return false;
    }
    String text = MessageExtractor.getTextFromPart(part, TEXT_LENGTH_FOR_INLINE_CHECK);
    if (TextUtils.isEmpty(text)) {
        return false;
    }
    text = text.trim();
    return text.startsWith(PGP_INLINE_START_MARKER) || text.startsWith(PGP_INLINE_SIGNED_START_MARKER);
}