cpp: Support new flags for direct signing/encryption of files

* lang/cpp/src/context.h (enum EncryptionFlags): Add constant
EncryptFile.
* lang/cpp/src/global.h (enum SignatureMode): Add constant SignFile.
* lang/cpp/src/context.cpp (sigflags2sigflags): Handle new flag
SignFile.
(encryptflags2encryptflags): Handle new flag EncryptFile.
(operator<<): Add new flags to the corresponding debug streams.
* lang/cpp/src/signingresult.cpp (CreatedSignature::mode): Handle
new flag SignFile (even if it cannot occur).
--

GnuPG-bug-id: 6550

lang/cpp/src/context.cpp

@@ -1301,6 +1301,9 @@ static gpgme_sig_mode_t sigflags2sigflags(SignatureMode flags)
     if (flags & SignatureMode::SignArchive) {
         result |= GPGME_SIG_MODE_ARCHIVE;
     }
+    if (flags & SignatureMode::SignFile) {
+        result |= GPGME_SIG_MODE_FILE;
+    }
     return static_cast<gpgme_sig_mode_t>(result);
 }
 
@@ -1363,6 +1366,9 @@ static gpgme_encrypt_flags_t encryptflags2encryptflags(Context::EncryptionFlags
     if (flags & Context::EncryptArchive) {
         result |= GPGME_ENCRYPT_ARCHIVE;
     }
+    if (flags & Context::EncryptFile) {
+        result |= GPGME_ENCRYPT_FILE;
+    }
     return static_cast<gpgme_encrypt_flags_t>(result);
 }
 
@@ -1927,6 +1933,7 @@ std::ostream &operator<<(std::ostream &os, SignatureMode mode)
     }
 #define CHECK( x ) if ( !(mode & (x)) ) {} else do { os << #x " "; } while (0)
         CHECK(SignArchive);
+        CHECK(SignFile);
 #undef CHECK
     return os << ')';
 }
@@ -1945,6 +1952,7 @@ std::ostream &operator<<(std::ostream &os, Context::EncryptionFlags flags)
     CHECK(EncryptWrap);
     CHECK(WantAddress);
     CHECK(EncryptArchive);
+    CHECK(EncryptFile);
 #undef CHECK
     return os << ')';
 }

lang/cpp/src/context.h

@@ -450,7 +450,8 @@ public:
         ThrowKeyIds = 64,
         EncryptWrap = 128,
         WantAddress = 256,
-        EncryptArchive = 512
+        EncryptArchive = 512,
+        EncryptFile = 1024
     };
     EncryptionResult encrypt(const std::vector<Key> &recipients, const Data &plainText, Data &cipherText, EncryptionFlags flags);
     GpgME::Error encryptSymmetrically(const Data &plainText, Data &cipherText);

lang/cpp/src/global.h

@@ -79,6 +79,7 @@ enum SignatureMode {
     Detached = 1,
     Clearsigned = 2,
     SignArchive = 4,
+    SignFile = 8,
 };
 
 enum class RevocationReason {

lang/cpp/src/signingresult.cpp

@@ -200,6 +200,7 @@ GpgME::SignatureMode GpgME::CreatedSignature::mode() const
     case GPGME_SIG_MODE_DETACH: return Detached;
     case GPGME_SIG_MODE_CLEAR:  return Clearsigned;
     case GPGME_SIG_MODE_ARCHIVE: return SignArchive; // cannot happen
+    case GPGME_SIG_MODE_FILE:   return SignFile; // cannot happen
     }
 }