mirror of
https://github.com/moparisthebest/open-keychain
synced 2024-11-27 11:12:15 -05:00
Get original filename for decryption
This commit is contained in:
Dominik Schürmann
parent
549feb69ed
commit
b673565035
@ -71,6 +71,7 @@ public class PgpDecryptVerify {
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private boolean mAllowSymmetricDecryption;
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private String mPassphrase;
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private Set<Long> mAllowedKeyIds;
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private boolean mReturnMetadataOnly;
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private PgpDecryptVerify(Builder builder) {
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// private Constructor can only be called from Builder
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@ -83,6 +84,7 @@ public class PgpDecryptVerify {
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this.mAllowSymmetricDecryption = builder.mAllowSymmetricDecryption;
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this.mPassphrase = builder.mPassphrase;
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this.mAllowedKeyIds = builder.mAllowedKeyIds;
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this.mReturnMetadataOnly = builder.mReturnMetadataOnly;
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}
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public static class Builder {
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@ -97,6 +99,7 @@ public class PgpDecryptVerify {
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private boolean mAllowSymmetricDecryption = true;
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private String mPassphrase = null;
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private Set<Long> mAllowedKeyIds = null;
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private boolean mReturnMetadataOnly = false;
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public Builder(ProviderHelper providerHelper, PassphraseCache passphraseCache,
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InputData data, OutputStream outStream) {
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@ -126,7 +129,16 @@ public class PgpDecryptVerify {
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* This means only ciphertexts encrypted for one of these private key can be decrypted.
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*/
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public Builder setAllowedKeyIds(Set<Long> allowedKeyIds) {
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this.mAllowedKeyIds = allowedKeyIds;
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mAllowedKeyIds = allowedKeyIds;
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return this;
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}
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/**
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* If enabled, the actual decryption/verification of the content will not be executed.
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* The metadata only will be decrypted and returned.
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*/
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public Builder setReturnMetadataOnly(boolean returnMetadataOnly) {
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mReturnMetadataOnly = returnMetadataOnly;
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return this;
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}
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@ -442,7 +454,7 @@ public class PgpDecryptVerify {
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PGPLiteralData literalData = (PGPLiteralData) dataChunk;
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// TODO: how to get the real original size?
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// this is the encrypted size
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// this is the encrypted size so if we enable compression this value is wrong!
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long originalSize = mData.getSize() - mData.getStreamPosition();
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if (originalSize < 0) {
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originalSize = 0;
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@ -455,6 +467,13 @@ public class PgpDecryptVerify {
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originalSize);
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result.setDecryptMetadata(metadata);
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Log.d(Constants.TAG, "metadata: " + metadata);
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// return here if we want to decrypt the metadata only
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if (mReturnMetadataOnly) {
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return result;
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}
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int endProgress;
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if (signature != null) {
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endProgress = 90;
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@ -86,6 +86,8 @@ public class KeychainIntentService extends IntentService
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public static final String ACTION_DECRYPT_VERIFY = Constants.INTENT_PREFIX + "DECRYPT_VERIFY";
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public static final String ACTION_DECRYPT_METADATA = Constants.INTENT_PREFIX + "DECRYPT_METADATA";
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public static final String ACTION_SAVE_KEYRING = Constants.INTENT_PREFIX + "SAVE_KEYRING";
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public static final String ACTION_DELETE_FILE_SECURELY = Constants.INTENT_PREFIX
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@ -241,6 +243,7 @@ public class KeychainIntentService extends IntentService
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data.putInt(SELECTED_URI, i);
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InputData inputData = createEncryptInputData(data);
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OutputStream outStream = createCryptOutputStream(data);
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String originalFilename = getOriginalFilename(data);
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/* Operation */
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PgpSignEncrypt.Builder builder =
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@ -262,7 +265,8 @@ public class KeychainIntentService extends IntentService
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.setSignatureHashAlgorithm(
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Preferences.getPreferences(this).getDefaultHashAlgorithm())
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.setSignaturePassphrase(
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PassphraseCacheService.getCachedPassphrase(this, signatureKeyId));
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PassphraseCacheService.getCachedPassphrase(this, signatureKeyId))
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.setOriginalFilename(originalFilename);
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// this assumes that the bytes are cleartext (valid for current implementation!)
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if (source == IO_BYTES) {
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@ -308,10 +312,10 @@ public class KeychainIntentService extends IntentService
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KeychainIntentService.this, masterKeyId);
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}
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},
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inputData, outStream);
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builder.setProgressable(this);
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builder.setAllowSymmetricDecryption(true)
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inputData, outStream
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);
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builder.setProgressable(this)
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.setAllowSymmetricDecryption(true)
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.setPassphrase(passphrase);
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PgpDecryptVerifyResult decryptVerifyResult = builder.build().execute();
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@ -326,6 +330,46 @@ public class KeychainIntentService extends IntentService
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OtherHelper.logDebugBundle(resultData, "resultData");
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sendMessageToHandler(KeychainIntentServiceHandler.MESSAGE_OKAY, resultData);
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} catch (Exception e) {
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sendErrorToHandler(e);
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}
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} else if (ACTION_DECRYPT_METADATA.equals(action)) {
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try {
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/* Input */
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String passphrase = data.getString(DECRYPT_PASSPHRASE);
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InputData inputData = createDecryptInputData(data);
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/* Operation */
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Bundle resultData = new Bundle();
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// verifyText and decrypt returning additional resultData values for the
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// verification of signatures
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PgpDecryptVerify.Builder builder = new PgpDecryptVerify.Builder(
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new ProviderHelper(this),
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new PgpDecryptVerify.PassphraseCache() {
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@Override
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public String getCachedPassphrase(long masterKeyId) {
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return PassphraseCacheService.getCachedPassphrase(
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KeychainIntentService.this, masterKeyId);
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}
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},
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inputData, null
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);
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builder.setProgressable(this)
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.setAllowSymmetricDecryption(true)
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.setPassphrase(passphrase)
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.setReturnMetadataOnly(true);
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PgpDecryptVerifyResult decryptVerifyResult = builder.build().execute();
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resultData.putParcelable(RESULT_DECRYPT_VERIFY_RESULT, decryptVerifyResult);
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/* Output */
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OtherHelper.logDebugBundle(resultData, "resultData");
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sendMessageToHandler(KeychainIntentServiceHandler.MESSAGE_OKAY, resultData);
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} catch (Exception e) {
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sendErrorToHandler(e);
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@ -356,7 +400,7 @@ public class KeychainIntentService extends IntentService
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UncachedKeyRing ring = result.getRing();
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providerHelper.saveSecretKeyRing(ring, new ProgressScaler(this, 60, 95, 100));
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providerHelper.saveSecretKeyRing(ring, new ProgressScaler(this, 60, 95, 100));
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// cache new passphrase
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if (saveParcel.mNewPassphrase != null) {
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@ -403,7 +447,7 @@ public class KeychainIntentService extends IntentService
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} else {
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// get entries from cached file
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FileImportCache<ParcelableKeyRing> cache =
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new FileImportCache<ParcelableKeyRing>(this);
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new FileImportCache<ParcelableKeyRing>(this);
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entries = cache.readCacheIntoList();
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}
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@ -576,7 +620,7 @@ public class KeychainIntentService extends IntentService
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CanonicalizedPublicKeyRing publicRing = providerHelper.getCanonicalizedPublicKeyRing(pubKeyId);
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CanonicalizedSecretKeyRing secretKeyRing = providerHelper.getCanonicalizedSecretKeyRing(masterKeyId);
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CanonicalizedSecretKey certificationKey = secretKeyRing.getSecretKey();
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if(!certificationKey.unlock(signaturePassphrase)) {
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if (!certificationKey.unlock(signaturePassphrase)) {
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throw new PgpGeneralException("Error extracting key (bad passphrase?)");
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}
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UncachedKeyRing newRing = certificationKey.certifyUserIds(publicRing, userIds);
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@ -729,6 +773,27 @@ public class KeychainIntentService extends IntentService
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}
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}
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private String getOriginalFilename(Bundle data) throws PgpGeneralException, FileNotFoundException {
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int target = data.getInt(TARGET);
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switch (target) {
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case IO_BYTES:
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return "";
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case IO_URI:
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Uri providerUri = data.getParcelable(ENCRYPT_INPUT_URI);
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return FileHelper.getFilename(this, providerUri);
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case IO_URIS:
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providerUri = data.<Uri>getParcelableArrayList(ENCRYPT_INPUT_URIS).get(data.getInt(SELECTED_URI));
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return FileHelper.getFilename(this, providerUri);
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default:
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throw new PgpGeneralException("No target choosen!");
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}
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}
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private OutputStream createCryptOutputStream(Bundle data) throws PgpGeneralException, FileNotFoundException {
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int target = data.getInt(TARGET);
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switch (target) {
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@ -23,8 +23,10 @@ import android.content.Intent;
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import android.net.Uri;
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import android.os.Build;
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import android.os.Bundle;
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import android.os.Handler;
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import android.os.Message;
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import android.os.Messenger;
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import android.text.TextUtils;
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import android.view.LayoutInflater;
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import android.view.View;
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import android.view.ViewGroup;
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@ -38,6 +40,7 @@ import org.sufficientlysecure.keychain.pgp.PgpDecryptVerifyResult;
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import org.sufficientlysecure.keychain.service.KeychainIntentService;
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import org.sufficientlysecure.keychain.service.KeychainIntentServiceHandler;
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import org.sufficientlysecure.keychain.ui.dialog.DeleteFileDialogFragment;
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import org.sufficientlysecure.keychain.ui.dialog.PassphraseDialogFragment;
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import org.sufficientlysecure.keychain.util.Log;
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import org.sufficientlysecure.keychain.util.Notify;
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@ -113,7 +116,8 @@ public class DecryptFileFragment extends DecryptFragment {
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return;
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}
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askForOutputFilename();
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// askForOutputFilename();
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decryptOriginalFilename(null);
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}
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private String removeEncryptedAppend(String name) {
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@ -123,8 +127,13 @@ public class DecryptFileFragment extends DecryptFragment {
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return name;
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}
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private void askForOutputFilename() {
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String targetName = removeEncryptedAppend(FileHelper.getFilename(getActivity(), mInputUri));
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private void askForOutputFilename(String originalFilename) {
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String targetName;
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if (!TextUtils.isEmpty(originalFilename)) {
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targetName = originalFilename;
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} else {
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targetName = removeEncryptedAppend(FileHelper.getFilename(getActivity(), mInputUri));
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}
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if (Build.VERSION.SDK_INT < Build.VERSION_CODES.KITKAT) {
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File file = new File(mInputUri.getPath());
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File parentDir = file.exists() ? file.getParentFile() : Constants.Path.APP_DIR;
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@ -136,6 +145,82 @@ public class DecryptFileFragment extends DecryptFragment {
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}
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}
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private void decryptOriginalFilename(String passphrase) {
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Log.d(Constants.TAG, "decryptOriginalFilename");
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Intent intent = new Intent(getActivity(), KeychainIntentService.class);
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// fill values for this action
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Bundle data = new Bundle();
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intent.setAction(KeychainIntentService.ACTION_DECRYPT_METADATA);
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// data
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Log.d(Constants.TAG, "mInputUri=" + mInputUri + ", mOutputUri=" + mOutputUri);
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data.putInt(KeychainIntentService.SOURCE, KeychainIntentService.IO_URI);
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data.putParcelable(KeychainIntentService.ENCRYPT_INPUT_URI, mInputUri);
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data.putInt(KeychainIntentService.TARGET, KeychainIntentService.IO_URI);
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data.putParcelable(KeychainIntentService.ENCRYPT_OUTPUT_URI, mOutputUri);
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data.putString(KeychainIntentService.DECRYPT_PASSPHRASE, passphrase);
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intent.putExtra(KeychainIntentService.EXTRA_DATA, data);
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// Message is received after decrypting is done in KeychainIntentService
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KeychainIntentServiceHandler saveHandler = new KeychainIntentServiceHandler(getActivity(),
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getString(R.string.progress_decrypting), ProgressDialog.STYLE_HORIZONTAL) {
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public void handleMessage(Message message) {
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// handle messages by standard KeychainIntentServiceHandler first
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super.handleMessage(message);
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if (message.arg1 == KeychainIntentServiceHandler.MESSAGE_OKAY) {
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// get returned data bundle
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Bundle returnData = message.getData();
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PgpDecryptVerifyResult decryptVerifyResult =
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returnData.getParcelable(KeychainIntentService.RESULT_DECRYPT_VERIFY_RESULT);
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if (PgpDecryptVerifyResult.KEY_PASSHRASE_NEEDED == decryptVerifyResult.getStatus()) {
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showPassphraseDialogForFilename(decryptVerifyResult.getKeyIdPassphraseNeeded());
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} else if (PgpDecryptVerifyResult.SYMMETRIC_PASSHRASE_NEEDED ==
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decryptVerifyResult.getStatus()) {
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showPassphraseDialogForFilename(Constants.key.symmetric);
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} else {
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// go on...
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askForOutputFilename(decryptVerifyResult.getDecryptMetadata().getFilename());
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}
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}
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}
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};
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// Create a new Messenger for the communication back
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Messenger messenger = new Messenger(saveHandler);
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intent.putExtra(KeychainIntentService.EXTRA_MESSENGER, messenger);
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// show progress dialog
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saveHandler.showProgressDialog(getActivity());
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// start service with intent
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getActivity().startService(intent);
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}
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protected void showPassphraseDialogForFilename(long keyId) {
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PassphraseDialogFragment.show(getActivity(), keyId,
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new Handler() {
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@Override
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public void handleMessage(Message message) {
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if (message.what == PassphraseDialogFragment.MESSAGE_OKAY) {
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String passphrase =
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message.getData().getString(PassphraseDialogFragment.MESSAGE_DATA_PASSPHRASE);
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decryptOriginalFilename(passphrase);
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}
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}
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}
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);
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}
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@Override
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protected void decryptStart(String passphrase) {
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Log.d(Constants.TAG, "decryptStart");
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@ -161,7 +246,7 @@ public class DecryptFileFragment extends DecryptFragment {
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intent.putExtra(KeychainIntentService.EXTRA_DATA, data);
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// Message is received after encrypting is done in KeychainIntentService
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// Message is received after decrypting is done in KeychainIntentService
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KeychainIntentServiceHandler saveHandler = new KeychainIntentServiceHandler(getActivity(),
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getString(R.string.progress_decrypting), ProgressDialog.STYLE_HORIZONTAL) {
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public void handleMessage(Message message) {
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@ -178,7 +263,7 @@ public class DecryptFileFragment extends DecryptFragment {
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if (PgpDecryptVerifyResult.KEY_PASSHRASE_NEEDED == decryptVerifyResult.getStatus()) {
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showPassphraseDialog(decryptVerifyResult.getKeyIdPassphraseNeeded());
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} else if (PgpDecryptVerifyResult.SYMMETRIC_PASSHRASE_NEEDED ==
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decryptVerifyResult.getStatus()) {
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decryptVerifyResult.getStatus()) {
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showPassphraseDialog(Constants.key.symmetric);
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} else {
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// display signature result in activity
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@ -264,12 +264,12 @@ public class EncryptActivity extends DrawerActivity implements EncryptActivityIn
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// fill values for this action
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Bundle data = new Bundle();
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int compressionId;
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if (isContentMessage()) {
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data.putInt(KeychainIntentService.TARGET, KeychainIntentService.IO_BYTES);
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data.putByteArray(KeychainIntentService.ENCRYPT_MESSAGE_BYTES, mMessage.getBytes());
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compressionId = Preferences.getPreferences(this).getDefaultMessageCompression();
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data.putInt(KeychainIntentService.ENCRYPT_COMPRESSION_ID,
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Preferences.getPreferences(this).getDefaultMessageCompression());
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} else {
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data.putInt(KeychainIntentService.SOURCE, KeychainIntentService.IO_URIS);
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data.putParcelableArrayList(KeychainIntentService.ENCRYPT_INPUT_URIS, mInputUris);
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@ -277,10 +277,10 @@ public class EncryptActivity extends DrawerActivity implements EncryptActivityIn
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data.putInt(KeychainIntentService.TARGET, KeychainIntentService.IO_URIS);
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data.putParcelableArrayList(KeychainIntentService.ENCRYPT_OUTPUT_URIS, mOutputUris);
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compressionId = Preferences.getPreferences(this).getDefaultFileCompression();
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data.putInt(KeychainIntentService.ENCRYPT_COMPRESSION_ID,
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Preferences.getPreferences(this).getDefaultFileCompression());
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}
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data.putInt(KeychainIntentService.ENCRYPT_COMPRESSION_ID, compressionId);
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// Always use armor for messages
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data.putBoolean(KeychainIntentService.ENCRYPT_USE_ASCII_ARMOR, mUseArmor || isContentMessage());
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@ -429,7 +429,6 @@ public class EncryptActivity extends DrawerActivity implements EncryptActivityIn
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if (isModeSymmetric()) {
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// symmetric encryption checks
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if (mPassphrase == null) {
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Notify.showNotify(this, R.string.passphrases_do_not_match, Notify.Style.ERROR);
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return false;
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