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Diffstat (limited to 'src/main/java/eu/siacs/conversations/http/HttpDownloadConnection.java')
-rw-r--r--src/main/java/eu/siacs/conversations/http/HttpDownloadConnection.java269
1 files changed, 269 insertions, 0 deletions
diff --git a/src/main/java/eu/siacs/conversations/http/HttpDownloadConnection.java b/src/main/java/eu/siacs/conversations/http/HttpDownloadConnection.java
new file mode 100644
index 00000000..6fcd8c87
--- /dev/null
+++ b/src/main/java/eu/siacs/conversations/http/HttpDownloadConnection.java
@@ -0,0 +1,269 @@
+package eu.siacs.conversations.http;
+
+import android.content.Intent;
+import android.net.Uri;
+import android.os.SystemClock;
+import android.util.Log;
+
+import java.io.BufferedInputStream;
+import java.io.IOException;
+import java.io.OutputStream;
+import java.net.HttpURLConnection;
+import java.net.MalformedURLException;
+import java.net.URL;
+import java.util.Arrays;
+
+import javax.net.ssl.HttpsURLConnection;
+import javax.net.ssl.SSLHandshakeException;
+
+import eu.siacs.conversations.Config;
+import eu.siacs.conversations.R;
+import eu.siacs.conversations.entities.Transferable;
+import eu.siacs.conversations.entities.DownloadableFile;
+import eu.siacs.conversations.entities.Message;
+import eu.siacs.conversations.services.XmppConnectionService;
+import eu.siacs.conversations.utils.CryptoHelper;
+
+public class HttpDownloadConnection implements Transferable {
+
+ private HttpConnectionManager mHttpConnectionManager;
+ private XmppConnectionService mXmppConnectionService;
+
+ private URL mUrl;
+ private Message message;
+ private DownloadableFile file;
+ private int mStatus = Transferable.STATUS_UNKNOWN;
+ private boolean acceptedAutomatically = false;
+ private int mProgress = 0;
+ private long mLastGuiRefresh = 0;
+
+ public HttpDownloadConnection(HttpConnectionManager manager) {
+ this.mHttpConnectionManager = manager;
+ this.mXmppConnectionService = manager.getXmppConnectionService();
+ }
+
+ @Override
+ public boolean start() {
+ if (mXmppConnectionService.hasInternetConnection()) {
+ if (this.mStatus == STATUS_OFFER_CHECK_FILESIZE) {
+ checkFileSize(true);
+ } else {
+ new Thread(new FileDownloader(true)).start();
+ }
+ return true;
+ } else {
+ return false;
+ }
+ }
+
+ public void init(Message message) {
+ init(message, false);
+ }
+
+ public void init(Message message, boolean interactive) {
+ this.message = message;
+ this.message.setTransferable(this);
+ try {
+ mUrl = new URL(message.getBody());
+ String[] parts = mUrl.getPath().toLowerCase().split("\\.");
+ String lastPart = parts.length >= 1 ? parts[parts.length - 1] : null;
+ String secondToLast = parts.length >= 2 ? parts[parts.length -2] : null;
+ if ("pgp".equals(lastPart) || "gpg".equals(lastPart)) {
+ this.message.setEncryption(Message.ENCRYPTION_PGP);
+ } else if (message.getEncryption() != Message.ENCRYPTION_OTR) {
+ this.message.setEncryption(Message.ENCRYPTION_NONE);
+ }
+ String extension;
+ if (Arrays.asList(VALID_CRYPTO_EXTENSIONS).contains(lastPart)) {
+ extension = secondToLast;
+ } else {
+ extension = lastPart;
+ }
+ message.setRelativeFilePath(message.getUuid()+"."+extension);
+ this.file = mXmppConnectionService.getFileBackend().getFile(message, false);
+ String reference = mUrl.getRef();
+ if (reference != null && reference.length() == 96) {
+ this.file.setKey(CryptoHelper.hexToBytes(reference));
+ }
+
+ if (this.message.getEncryption() == Message.ENCRYPTION_OTR
+ && this.file.getKey() == null) {
+ this.message.setEncryption(Message.ENCRYPTION_NONE);
+ }
+ checkFileSize(true);
+ } catch (MalformedURLException e) {
+ this.cancel();
+ }
+ }
+
+ private void checkFileSize(boolean interactive) {
+ new Thread(new FileSizeChecker(interactive)).start();
+ }
+
+ public void cancel() {
+ mHttpConnectionManager.finishConnection(this);
+ message.setTransferable(null);
+ mXmppConnectionService.updateConversationUi();
+ }
+
+ private void finish() {
+ Intent intent = new Intent(Intent.ACTION_MEDIA_SCANNER_SCAN_FILE);
+ intent.setData(Uri.fromFile(file));
+ mXmppConnectionService.sendBroadcast(intent);
+ message.setTransferable(null);
+ mHttpConnectionManager.finishConnection(this);
+ mXmppConnectionService.updateConversationUi();
+ if (acceptedAutomatically) {
+ mXmppConnectionService.getNotificationService().push(message);
+ }
+ }
+
+ private void changeStatus(int status) {
+ this.mStatus = status;
+ mXmppConnectionService.updateConversationUi();
+ }
+
+ private class FileSizeChecker implements Runnable {
+
+ private boolean interactive = false;
+
+ public FileSizeChecker(boolean interactive) {
+ this.interactive = interactive;
+ }
+
+ @Override
+ public void run() {
+ long size;
+ try {
+ size = retrieveFileSize();
+ } catch (SSLHandshakeException e) {
+ changeStatus(STATUS_OFFER_CHECK_FILESIZE);
+ HttpDownloadConnection.this.acceptedAutomatically = false;
+ HttpDownloadConnection.this.mXmppConnectionService.getNotificationService().push(message);
+ return;
+ } catch (IOException e) {
+ Log.d(Config.LOGTAG, "io exception in http file size checker: " + e.getMessage());
+ if (interactive) {
+ mXmppConnectionService.showErrorToastInUi(R.string.file_not_found_on_remote_host);
+ }
+ cancel();
+ return;
+ }
+ file.setExpectedSize(size);
+ if (size <= mHttpConnectionManager.getAutoAcceptFileSize()) {
+ HttpDownloadConnection.this.acceptedAutomatically = true;
+ new Thread(new FileDownloader(interactive)).start();
+ } else {
+ changeStatus(STATUS_OFFER);
+ HttpDownloadConnection.this.acceptedAutomatically = false;
+ HttpDownloadConnection.this.mXmppConnectionService.getNotificationService().push(message);
+ }
+ }
+
+ private long retrieveFileSize() throws IOException {
+ Log.d(Config.LOGTAG,"retrieve file size. interactive:"+String.valueOf(interactive));
+ changeStatus(STATUS_CHECKING);
+ HttpURLConnection connection = (HttpURLConnection) mUrl.openConnection();
+ connection.setRequestMethod("HEAD");
+ if (connection instanceof HttpsURLConnection) {
+ mHttpConnectionManager.setupTrustManager((HttpsURLConnection) connection, interactive);
+ }
+ connection.connect();
+ String contentLength = connection.getHeaderField("Content-Length");
+ if (contentLength == null) {
+ throw new IOException();
+ }
+ try {
+ return Long.parseLong(contentLength, 10);
+ } catch (NumberFormatException e) {
+ throw new IOException();
+ }
+ }
+
+ }
+
+ private class FileDownloader implements Runnable {
+
+ private boolean interactive = false;
+
+ public FileDownloader(boolean interactive) {
+ this.interactive = interactive;
+ }
+
+ @Override
+ public void run() {
+ try {
+ changeStatus(STATUS_DOWNLOADING);
+ download();
+ updateImageBounds();
+ finish();
+ } catch (SSLHandshakeException e) {
+ changeStatus(STATUS_OFFER);
+ } catch (IOException e) {
+ mXmppConnectionService.showErrorToastInUi(R.string.file_not_found_on_remote_host);
+ cancel();
+ }
+ }
+
+ private void download() throws SSLHandshakeException, IOException {
+ HttpURLConnection connection = (HttpURLConnection) mUrl.openConnection();
+ if (connection instanceof HttpsURLConnection) {
+ mHttpConnectionManager.setupTrustManager((HttpsURLConnection) connection, interactive);
+ }
+ connection.connect();
+ BufferedInputStream is = new BufferedInputStream(connection.getInputStream());
+ file.getParentFile().mkdirs();
+ file.createNewFile();
+ OutputStream os = file.createOutputStream();
+ if (os == null) {
+ throw new IOException();
+ }
+ long transmitted = 0;
+ long expected = file.getExpectedSize();
+ int count = -1;
+ byte[] buffer = new byte[1024];
+ while ((count = is.read(buffer)) != -1) {
+ transmitted += count;
+ os.write(buffer, 0, count);
+ updateProgress((int) ((((double) transmitted) / expected) * 100));
+ }
+ os.flush();
+ os.close();
+ is.close();
+ }
+
+ private void updateImageBounds() {
+ message.setType(Message.TYPE_FILE);
+ mXmppConnectionService.getFileBackend().updateFileParams(message, mUrl);
+ mXmppConnectionService.updateMessage(message);
+ }
+
+ }
+
+ public void updateProgress(int i) {
+ this.mProgress = i;
+ if (SystemClock.elapsedRealtime() - this.mLastGuiRefresh > Config.PROGRESS_UI_UPDATE_INTERVAL) {
+ this.mLastGuiRefresh = SystemClock.elapsedRealtime();
+ mXmppConnectionService.updateConversationUi();
+ }
+ }
+
+ @Override
+ public int getStatus() {
+ return this.mStatus;
+ }
+
+ @Override
+ public long getFileSize() {
+ if (this.file != null) {
+ return this.file.getExpectedSize();
+ } else {
+ return 0;
+ }
+ }
+
+ @Override
+ public int getProgress() {
+ return this.mProgress;
+ }
+}