Merge branch 'master' of github.com:open-keychain/open-keychain

OpenKeychain/src/main/java/org/sufficientlysecure/keychain/operations/results/OperationResult.java

@@ -635,6 +635,8 @@ public abstract class OperationResult implements Parcelable {
         MSG_EK_ERROR_NOT_FOUND (LogLevel.ERROR, R.string.msg_ek_error_not_found),
 
         // decryptverify
+        MSG_DC_ASKIP_BAD_FLAGS (LogLevel.DEBUG, R.string.msg_dc_askip_bad_flags),
+        MSG_DC_ASKIP_UNAVAILABLE (LogLevel.DEBUG, R.string.msg_dc_askip_unavailable),
         MSG_DC_ASKIP_NO_KEY (LogLevel.DEBUG, R.string.msg_dc_askip_no_key),
         MSG_DC_ASKIP_NOT_ALLOWED (LogLevel.DEBUG, R.string.msg_dc_askip_not_allowed),
         MSG_DC_ASYM (LogLevel.DEBUG, R.string.msg_dc_asym),

OpenKeychain/src/main/java/org/sufficientlysecure/keychain/pgp/PgpDecryptVerifyOperation.java

@@ -591,6 +591,18 @@ public class PgpDecryptVerifyOperation extends BaseOperation<PgpDecryptVerifyInp
                 // get subkey which has been used for this encryption packet
                 secretEncryptionKey = secretKeyRing.getSecretKey(subKeyId);
 
+                if (!secretEncryptionKey.canEncrypt()) {
+                    secretEncryptionKey = null;
+                    log.add(LogType.MSG_DC_ASKIP_BAD_FLAGS, indent + 1);
+                    continue;
+                }
+
+                if (!secretEncryptionKey.getSecretKeyType().isUsable()) {
+                    secretEncryptionKey = null;
+                    log.add(LogType.MSG_DC_ASKIP_UNAVAILABLE, indent + 1);
+                    continue;
+                }
+
                 /* secret key exists in database and is allowed! */
                 asymmetricPacketFound = true;
 

OpenKeychain/src/main/java/org/sufficientlysecure/keychain/pgp/PgpHelper.java

@@ -117,7 +117,7 @@ public class PgpHelper {
         }
     }
 
-    public static String getPgpContent(@NonNull CharSequence input) {
+    public static String getPgpMessageContent(@NonNull CharSequence input) {
         Log.dEscaped(Constants.TAG, "input: " + input);
 
         Matcher matcher = PgpHelper.PGP_MESSAGE.matcher(input);
@@ -141,4 +141,18 @@ public class PgpHelper {
         }
     }
 
+    public static String getPgpKeyContent(@NonNull CharSequence input) {
+        Log.dEscaped(Constants.TAG, "input: " + input);
+
+        Matcher matcher = PgpHelper.PGP_PUBLIC_KEY.matcher(input);
+        if (matcher.matches()) {
+            String text = matcher.group(1);
+            text = fixPgpMessage(text);
+
+            Log.dEscaped(Constants.TAG, "input fixed: " + text);
+            return text;
+        }
+        return null;
+    }
+
 }

OpenKeychain/src/main/java/org/sufficientlysecure/keychain/remote/OpenPgpService.java

@@ -701,24 +701,17 @@ public class OpenPgpService extends RemoteService {
                 Intent result = new Intent();
                 result.putExtra(OpenPgpApi.RESULT_CODE, OpenPgpApi.RESULT_CODE_SUCCESS);
 
-                // return public key if requested by defining a output stream
+                boolean requestedKeyData = outputStream != null;
-                if (outputStream != null) {
+                if (requestedKeyData) {
-                    boolean requestAsciiArmor =
+                    boolean requestAsciiArmor = data.getBooleanExtra(OpenPgpApi.EXTRA_REQUEST_ASCII_ARMOR, false);
-                            data.getBooleanExtra(OpenPgpApi.EXTRA_REQUEST_ASCII_ARMOR, false);
 
-                    ArmoredOutputStream arOutStream = null;
                     try {
                         if (requestAsciiArmor) {
-                            arOutStream = new ArmoredOutputStream(outputStream);
+                            outputStream = new ArmoredOutputStream(outputStream);
-                            keyRing.encode(arOutStream);
-                        } else {
-                            keyRing.encode(outputStream);
                         }
+                        keyRing.encode(outputStream);
                     } finally {
                         try {
-                            if (arOutStream != null) {
-                                arOutStream.close();
-                            }
                             outputStream.close();
                         } catch (IOException e) {
                             Log.e(Constants.TAG, "IOException when closing OutputStream", e);

OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/DecryptActivity.java

@@ -200,7 +200,7 @@ public class DecryptActivity extends BaseActivity {
         }
 
         // clean up ascii armored message, fixing newlines and stuff
-        String cleanedText = PgpHelper.getPgpContent(text);
+        String cleanedText = PgpHelper.getPgpMessageContent(text);
         if (cleanedText == null) {
             return null;
         }

OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/ImportKeysFileFragment.java

@@ -29,6 +29,9 @@ import android.view.ViewGroup;
 import org.sufficientlysecure.keychain.Constants;
 import org.sufficientlysecure.keychain.R;
 import org.sufficientlysecure.keychain.compatibility.ClipboardReflection;
+import org.sufficientlysecure.keychain.pgp.PgpHelper;
+import org.sufficientlysecure.keychain.ui.util.Notify;
+import org.sufficientlysecure.keychain.ui.util.Notify.Style;
 import org.sufficientlysecure.keychain.util.FileHelper;
 
 public class ImportKeysFileFragment extends Fragment {
@@ -78,12 +81,16 @@ public class ImportKeysFileFragment extends Fragment {
                 String sendText = "";
                 if (clipboardText != null) {
                     sendText = clipboardText.toString();
+                    sendText = PgpHelper.getPgpKeyContent(sendText);
+                    if (sendText == null) {
+                        Notify.create(mImportActivity, "Bad data!", Style.ERROR).show();
+                        return;
+                    }
                     mImportActivity.loadCallback(new ImportKeysListFragment.BytesLoaderState(sendText.getBytes(), null));
                 }
             }
         });
 
-
         return view;
     }
 

OpenKeychain/src/main/res/values/strings.xml

@@ -1150,6 +1150,8 @@
     <string name="msg_ek_error_not_found">"Key not found!"</string>
 
     <!-- Messages for DecryptVerify operation -->
+    <string name="msg_dc_askip_bad_flags">"Key is not an encryption key, skipping…"</string>
+    <string name="msg_dc_askip_unavailable">"Key not available, skipping…"</string>
     <string name="msg_dc_askip_no_key">"Data not encrypted with known key, skipping…"</string>
     <string name="msg_dc_askip_not_allowed">"Data not encrypted with allowed key, skipping…"</string>
     <string name="msg_dc_asym">"Found block of asymmetrically encrypted data for key %s"</string>