diff options
Diffstat (limited to 'src/main/java/de/thedevstack/conversationsplus/crypto/PgpEngine.java')
-rw-r--r-- | src/main/java/de/thedevstack/conversationsplus/crypto/PgpEngine.java | 406 |
1 files changed, 0 insertions, 406 deletions
diff --git a/src/main/java/de/thedevstack/conversationsplus/crypto/PgpEngine.java b/src/main/java/de/thedevstack/conversationsplus/crypto/PgpEngine.java deleted file mode 100644 index c97b8395..00000000 --- a/src/main/java/de/thedevstack/conversationsplus/crypto/PgpEngine.java +++ /dev/null @@ -1,406 +0,0 @@ -package de.thedevstack.conversationsplus.crypto; - -import android.app.PendingIntent; -import android.content.Intent; - -import org.openintents.openpgp.OpenPgpSignatureResult; -import org.openintents.openpgp.util.OpenPgpApi; -import org.openintents.openpgp.util.OpenPgpApi.IOpenPgpCallback; - -import java.io.ByteArrayInputStream; -import java.io.ByteArrayOutputStream; -import java.io.FileInputStream; -import java.io.FileOutputStream; -import java.io.IOException; -import java.io.InputStream; -import java.io.OutputStream; - -import de.thedevstack.conversationsplus.ConversationsPlusPreferences; -import de.thedevstack.conversationsplus.utils.StreamUtil; -import de.thedevstack.conversationsplus.R; -import de.thedevstack.conversationsplus.entities.Account; -import de.thedevstack.conversationsplus.entities.Contact; -import de.thedevstack.conversationsplus.entities.Conversation; -import de.thedevstack.conversationsplus.entities.DownloadableFile; -import de.thedevstack.conversationsplus.entities.Message; -import de.thedevstack.conversationsplus.http.HttpConnectionManager; -import de.thedevstack.conversationsplus.persistance.FileBackend; -import de.thedevstack.conversationsplus.services.XmppConnectionService; -import de.thedevstack.conversationsplus.ui.UiCallback; - -public class PgpEngine { - private OpenPgpApi api; - private XmppConnectionService mXmppConnectionService; - private static PgpEngine INSTANCE; - - public PgpEngine(OpenPgpApi api, XmppConnectionService service) { - this.api = api; - this.mXmppConnectionService = service; - INSTANCE = this; - } - - public static PgpEngine getInstance() { - return INSTANCE; - } - - public void decrypt(final Message message, final UiCallback<Message> callback) { - Intent params = new Intent(); - params.setAction(OpenPgpApi.ACTION_DECRYPT_VERIFY); - final String uuid = message.getUuid(); - if (message.getType() == Message.TYPE_TEXT) { - InputStream is = new ByteArrayInputStream(message.getBody().getBytes()); - final OutputStream os = new ByteArrayOutputStream(); - api.executeApiAsync(params, is, os, new IOpenPgpCallback() { - - @Override - public void onReturn(Intent result) { - notifyPgpDecryptionService(message.getConversation().getAccount(), OpenPgpApi.ACTION_DECRYPT_VERIFY, result); - switch (result.getIntExtra(OpenPgpApi.RESULT_CODE, OpenPgpApi.RESULT_CODE_ERROR)) { - case OpenPgpApi.RESULT_CODE_SUCCESS: - try { - os.flush(); - if (message.getEncryption() == Message.ENCRYPTION_PGP - && message.getUuid().equals(uuid)) { - message.setBody(os.toString()); - message.setEncryption(Message.ENCRYPTION_DECRYPTED); - if (message.trusted() - && message.treatAsDownloadable() != Message.Decision.NEVER - && (message.isHttpUploaded() || ConversationsPlusPreferences.autoDownloadFileLink()) - && ConversationsPlusPreferences.autoAcceptFileSize() > 0) { - HttpConnectionManager.createNewDownloadConnection(message); - } - mXmppConnectionService.updateMessage(message); - callback.success(message); - } - } catch (IOException e) { - callback.error(R.string.openpgp_error, message); - return; - } - - return; - case OpenPgpApi.RESULT_CODE_USER_INTERACTION_REQUIRED: - callback.userInputRequried((PendingIntent) result - .getParcelableExtra(OpenPgpApi.RESULT_INTENT), - message); - return; - case OpenPgpApi.RESULT_CODE_ERROR: - callback.error(R.string.openpgp_error, message); - } - } - }); - } else if (message.getType() == Message.TYPE_IMAGE || message.getType() == Message.TYPE_FILE) { - try { - final DownloadableFile inputFile = FileBackend.getFile(message, false); - final DownloadableFile outputFile = FileBackend.getFile(message, true); - outputFile.getParentFile().mkdirs(); - outputFile.createNewFile(); - InputStream is = new FileInputStream(inputFile); - OutputStream os = new FileOutputStream(outputFile); - api.executeApiAsync(params, is, os, new IOpenPgpCallback() { - - @Override - public void onReturn(Intent result) { - notifyPgpDecryptionService(message.getConversation().getAccount(), OpenPgpApi.ACTION_DECRYPT_VERIFY, result); - switch (result.getIntExtra(OpenPgpApi.RESULT_CODE, - OpenPgpApi.RESULT_CODE_ERROR)) { - case OpenPgpApi.RESULT_CODE_SUCCESS: - message.setEncryption(Message.ENCRYPTION_DECRYPTED); - PgpEngine.this.mXmppConnectionService - .updateMessage(message); - inputFile.delete(); - FileBackend.updateMediaScanner(outputFile, mXmppConnectionService); - callback.success(message); - return; - case OpenPgpApi.RESULT_CODE_USER_INTERACTION_REQUIRED: - callback.userInputRequried( - (PendingIntent) result - .getParcelableExtra(OpenPgpApi.RESULT_INTENT), - message); - return; - case OpenPgpApi.RESULT_CODE_ERROR: - callback.error(R.string.openpgp_error, message); - } - } - }); - } catch (final IOException e) { - callback.error(R.string.error_decrypting_file, message); - } - - } - } - - public void encrypt(final Message message, final UiCallback<Message> callback) { - Intent params = new Intent(); - params.setAction(OpenPgpApi.ACTION_ENCRYPT); - final Conversation conversation = message.getConversation(); - if (conversation.getMode() == Conversation.MODE_SINGLE) { - long[] keys = { - conversation.getContact().getPgpKeyId(), - conversation.getAccount().getPgpId() - }; - params.putExtra(OpenPgpApi.EXTRA_KEY_IDS, keys); - } else { - params.putExtra(OpenPgpApi.EXTRA_KEY_IDS, conversation.getMucOptions().getPgpKeyIds()); - } - - if (!message.needsUploading()) { - params.putExtra(OpenPgpApi.EXTRA_REQUEST_ASCII_ARMOR, true); - String body = message.getBody(); - InputStream is = new ByteArrayInputStream(body.getBytes()); - final OutputStream os = new ByteArrayOutputStream(); - api.executeApiAsync(params, is, os, new IOpenPgpCallback() { - - @Override - public void onReturn(Intent result) { - notifyPgpDecryptionService(message.getConversation().getAccount(), OpenPgpApi.ACTION_ENCRYPT, result); - switch (result.getIntExtra(OpenPgpApi.RESULT_CODE, - OpenPgpApi.RESULT_CODE_ERROR)) { - case OpenPgpApi.RESULT_CODE_SUCCESS: - try { - os.flush(); - StringBuilder encryptedMessageBody = new StringBuilder(); - String[] lines = os.toString().split("\n"); - for (int i = 2; i < lines.length - 1; ++i) { - if (!lines[i].contains("Version")) { - encryptedMessageBody.append(lines[i]); - } - } - message.setEncryptedBody(encryptedMessageBody - .toString()); - callback.success(message); - } catch (IOException e) { - callback.error(R.string.openpgp_error, message); - } - - break; - case OpenPgpApi.RESULT_CODE_USER_INTERACTION_REQUIRED: - callback.userInputRequried((PendingIntent) result - .getParcelableExtra(OpenPgpApi.RESULT_INTENT), - message); - break; - case OpenPgpApi.RESULT_CODE_ERROR: - callback.error(R.string.openpgp_error, message); - break; - } - } - }); - } else { - try { - DownloadableFile inputFile = FileBackend.getFile(message, true); - DownloadableFile outputFile = FileBackend.getFile(message, false); - outputFile.getParentFile().mkdirs(); - outputFile.createNewFile(); - final InputStream is = new FileInputStream(inputFile); - final OutputStream os = new FileOutputStream(outputFile); - api.executeApiAsync(params, is, os, new IOpenPgpCallback() { - - @Override - public void onReturn(Intent result) { - notifyPgpDecryptionService(message.getConversation().getAccount(), OpenPgpApi.ACTION_ENCRYPT, result); - switch (result.getIntExtra(OpenPgpApi.RESULT_CODE, - OpenPgpApi.RESULT_CODE_ERROR)) { - case OpenPgpApi.RESULT_CODE_SUCCESS: - try { - os.flush(); - } catch (IOException ignored) { - //ignored - } - StreamUtil.close(os); - callback.success(message); - break; - case OpenPgpApi.RESULT_CODE_USER_INTERACTION_REQUIRED: - callback.userInputRequried( - (PendingIntent) result - .getParcelableExtra(OpenPgpApi.RESULT_INTENT), - message); - break; - case OpenPgpApi.RESULT_CODE_ERROR: - callback.error(R.string.openpgp_error, message); - break; - } - } - }); - } catch (final IOException e) { - callback.error(R.string.openpgp_error, message); - } - } - } - - public long fetchKeyId(Account account, String status, String signature) { - if ((signature == null) || (api == null)) { - return 0; - } - if (status == null) { - status = ""; - } - final StringBuilder pgpSig = new StringBuilder(); - pgpSig.append("-----BEGIN PGP SIGNED MESSAGE-----"); - pgpSig.append('\n'); - pgpSig.append('\n'); - pgpSig.append(status); - pgpSig.append('\n'); - pgpSig.append("-----BEGIN PGP SIGNATURE-----"); - pgpSig.append('\n'); - pgpSig.append('\n'); - pgpSig.append(signature.replace("\n", "")); - pgpSig.append('\n'); - pgpSig.append("-----END PGP SIGNATURE-----"); - Intent params = new Intent(); - params.setAction(OpenPgpApi.ACTION_DECRYPT_VERIFY); - params.putExtra(OpenPgpApi.EXTRA_REQUEST_ASCII_ARMOR, true); - InputStream is = new ByteArrayInputStream(pgpSig.toString().getBytes()); - ByteArrayOutputStream os = new ByteArrayOutputStream(); - Intent result = api.executeApi(params, is, os); - notifyPgpDecryptionService(account, OpenPgpApi.ACTION_DECRYPT_VERIFY, result); - switch (result.getIntExtra(OpenPgpApi.RESULT_CODE, - OpenPgpApi.RESULT_CODE_ERROR)) { - case OpenPgpApi.RESULT_CODE_SUCCESS: - OpenPgpSignatureResult sigResult = result - .getParcelableExtra(OpenPgpApi.RESULT_SIGNATURE); - if (sigResult != null) { - return sigResult.getKeyId(); - } else { - return 0; - } - case OpenPgpApi.RESULT_CODE_USER_INTERACTION_REQUIRED: - return 0; - case OpenPgpApi.RESULT_CODE_ERROR: - return 0; - } - return 0; - } - - public void chooseKey(final Account account, final UiCallback<Account> callback) { - Intent p = new Intent(); - p.setAction(OpenPgpApi.ACTION_GET_SIGN_KEY_ID); - api.executeApiAsync(p, null, null, new IOpenPgpCallback() { - - @Override - public void onReturn(Intent result) { - switch (result.getIntExtra(OpenPgpApi.RESULT_CODE, 0)) { - case OpenPgpApi.RESULT_CODE_SUCCESS: - callback.success(account); - return; - case OpenPgpApi.RESULT_CODE_USER_INTERACTION_REQUIRED: - callback.userInputRequried((PendingIntent) result - .getParcelableExtra(OpenPgpApi.RESULT_INTENT), - account); - return; - case OpenPgpApi.RESULT_CODE_ERROR: - callback.error(R.string.openpgp_error, account); - } - } - }); - } - - public void generateSignature(final Account account, String status, - final UiCallback<Account> callback) { - if (account.getPgpId() == -1) { - return; - } - Intent params = new Intent(); - params.setAction(OpenPgpApi.ACTION_CLEARTEXT_SIGN); - params.putExtra(OpenPgpApi.EXTRA_REQUEST_ASCII_ARMOR, true); - params.putExtra(OpenPgpApi.EXTRA_SIGN_KEY_ID, account.getPgpId()); - InputStream is = new ByteArrayInputStream(status.getBytes()); - final OutputStream os = new ByteArrayOutputStream(); - api.executeApiAsync(params, is, os, new IOpenPgpCallback() { - - @Override - public void onReturn(Intent result) { - notifyPgpDecryptionService(account, OpenPgpApi.ACTION_SIGN, result); - switch (result.getIntExtra(OpenPgpApi.RESULT_CODE, 0)) { - case OpenPgpApi.RESULT_CODE_SUCCESS: - StringBuilder signatureBuilder = new StringBuilder(); - try { - os.flush(); - String[] lines = os.toString().split("\n"); - boolean sig = false; - for (String line : lines) { - if (sig) { - if (line.contains("END PGP SIGNATURE")) { - sig = false; - } else { - if (!line.contains("Version")) { - signatureBuilder.append(line); - } - } - } - if (line.contains("BEGIN PGP SIGNATURE")) { - sig = true; - } - } - } catch (IOException e) { - callback.error(R.string.openpgp_error, account); - return; - } - account.setPgpSignature(signatureBuilder.toString()); - callback.success(account); - return; - case OpenPgpApi.RESULT_CODE_USER_INTERACTION_REQUIRED: - callback.userInputRequried((PendingIntent) result - .getParcelableExtra(OpenPgpApi.RESULT_INTENT), - account); - return; - case OpenPgpApi.RESULT_CODE_ERROR: - callback.error(R.string.openpgp_error, account); - } - } - }); - } - - public void hasKey(final Contact contact, final UiCallback<Contact> callback) { - Intent params = new Intent(); - params.setAction(OpenPgpApi.ACTION_GET_KEY); - params.putExtra(OpenPgpApi.EXTRA_KEY_ID, contact.getPgpKeyId()); - api.executeApiAsync(params, null, null, new IOpenPgpCallback() { - - @Override - public void onReturn(Intent result) { - switch (result.getIntExtra(OpenPgpApi.RESULT_CODE, 0)) { - case OpenPgpApi.RESULT_CODE_SUCCESS: - callback.success(contact); - return; - case OpenPgpApi.RESULT_CODE_USER_INTERACTION_REQUIRED: - callback.userInputRequried((PendingIntent) result - .getParcelableExtra(OpenPgpApi.RESULT_INTENT), - contact); - return; - case OpenPgpApi.RESULT_CODE_ERROR: - callback.error(R.string.openpgp_error, contact); - } - } - }); - } - - public PendingIntent getIntentForKey(Contact contact) { - Intent params = new Intent(); - params.setAction(OpenPgpApi.ACTION_GET_KEY); - params.putExtra(OpenPgpApi.EXTRA_KEY_ID, contact.getPgpKeyId()); - Intent result = api.executeApi(params, null, null); - return (PendingIntent) result - .getParcelableExtra(OpenPgpApi.RESULT_INTENT); - } - - public PendingIntent getIntentForKey(Account account, long pgpKeyId) { - Intent params = new Intent(); - params.setAction(OpenPgpApi.ACTION_GET_KEY); - params.putExtra(OpenPgpApi.EXTRA_KEY_ID, pgpKeyId); - Intent result = api.executeApi(params, null, null); - return (PendingIntent) result - .getParcelableExtra(OpenPgpApi.RESULT_INTENT); - } - - private void notifyPgpDecryptionService(Account account, String action, final Intent result) { - switch (result.getIntExtra(OpenPgpApi.RESULT_CODE, 0)) { - case OpenPgpApi.RESULT_CODE_SUCCESS: - if (OpenPgpApi.ACTION_SIGN.equals(action)) { - account.getPgpDecryptionService().onKeychainUnlocked(); - } - break; - case OpenPgpApi.RESULT_CODE_USER_INTERACTION_REQUIRED: - account.getPgpDecryptionService().onKeychainLocked(); - break; - } - } -} |