added share button to account details

1 files changed, 226 insertions, 0 deletions

diff --git a/src/main/java/eu/siacs/conversations/services/BarcodeProvider.java b/src/main/java/eu/siacs/conversations/services/BarcodeProvider.java
new file mode 100644
index 00000000..ccaa65c9
--- /dev/null
+++ b/src/main/java/eu/siacs/conversations/services/BarcodeProvider.java
@@ -0,0 +1,226 @@
+package eu.siacs.conversations.services;
+
+import android.annotation.TargetApi;
+import android.content.ComponentName;
+import android.content.ContentProvider;
+import android.content.ContentValues;
+import android.content.Context;
+import android.content.Intent;
+import android.content.ServiceConnection;
+import android.database.Cursor;
+import android.graphics.Bitmap;
+import android.graphics.Color;
+import android.net.Uri;
+import android.os.Build;
+import android.os.CancellationSignal;
+import android.os.IBinder;
+import android.os.ParcelFileDescriptor;
+import android.support.annotation.Nullable;
+import android.util.Log;
+
+import com.google.zxing.BarcodeFormat;
+import com.google.zxing.EncodeHintType;
+import com.google.zxing.aztec.AztecWriter;
+import com.google.zxing.common.BitMatrix;
+
+import java.io.BufferedOutputStream;
+import java.io.File;
+import java.io.FileNotFoundException;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.util.Hashtable;
+
+import eu.siacs.conversations.Config;
+import eu.siacs.conversations.entities.Account;
+import eu.siacs.conversations.utils.CryptoHelper;
+import eu.siacs.conversations.xmpp.jid.InvalidJidException;
+import eu.siacs.conversations.xmpp.jid.Jid;
+
+public class BarcodeProvider extends ContentProvider implements ServiceConnection {
+
+    private static final String AUTHORITY = "eu.siacs.conversations.barcodes";
+
+    private final Object lock = new Object();
+
+    private XmppConnectionService mXmppConnectionService;
+
+    @Override
+    public boolean onCreate() {
+        File barcodeDirectory = new File(getContext().getCacheDir().getAbsolutePath() + "/barcodes/");
+        if (barcodeDirectory.exists() && barcodeDirectory.isDirectory()) {
+            for (File file : barcodeDirectory.listFiles()) {
+                if (file.isFile() && !file.isHidden()) {
+                    Log.d(Config.LOGTAG, "deleting old barcode file " + file.getAbsolutePath());
+                    file.delete();
+                }
+            }
+        }
+        return true;
+    }
+
+    @Nullable
+    @Override
+    public Cursor query(Uri uri, String[] projection, String selection, String[] selectionArgs, String sortOrder) {
+        return null;
+    }
+
+    @Nullable
+    @Override
+    public String getType(Uri uri) {
+        return "image/png";
+    }
+
+    @Nullable
+    @Override
+    public Uri insert(Uri uri, ContentValues values) {
+        return null;
+    }
+
+    @Override
+    public int delete(Uri uri, String selection, String[] selectionArgs) {
+        return 0;
+    }
+
+    @Override
+    public int update(Uri uri, ContentValues values, String selection, String[] selectionArgs) {
+        return 0;
+    }
+
+    @Override
+    public ParcelFileDescriptor openFile(Uri uri, String mode) throws FileNotFoundException {
+        return openFile(uri, mode, null);
+    }
+
+    @Override
+    public ParcelFileDescriptor openFile(Uri uri, String mode, CancellationSignal signal) throws FileNotFoundException {
+        Log.d(Config.LOGTAG, "opening file with uri (normal): " + uri.toString());
+        String path = uri.getPath();
+        if (path != null && path.endsWith(".png") && path.length() >= 5) {
+            String jid = path.substring(1).substring(0, path.length() - 4);
+            Log.d(Config.LOGTAG, "account:" + jid);
+            if (connectAndWait()) {
+                Log.d(Config.LOGTAG, "connected to background service");
+                try {
+                    Account account = mXmppConnectionService.findAccountByJid(Jid.fromString(jid));
+                    if (account != null) {
+                        String shareableUri = account.getShareableUri();
+                        String hash = CryptoHelper.getFingerprint(shareableUri);
+                        File file = new File(getContext().getCacheDir().getAbsolutePath() + "/barcodes/" + hash);
+                        if (!file.exists()) {
+                            file.getParentFile().mkdirs();
+                            file.createNewFile();
+                            Bitmap bitmap = createAztecBitmap(account.getShareableUri(), 1024);
+                            OutputStream outputStream = new FileOutputStream(file);
+                            bitmap.compress(Bitmap.CompressFormat.PNG, 100, outputStream);
+                            outputStream.close();
+                            outputStream.flush();
+                        }
+                        return ParcelFileDescriptor.open(file,ParcelFileDescriptor.MODE_READ_ONLY);
+                    }
+                } catch (Exception e) {
+                    throw new FileNotFoundException();
+                }
+            }
+        }
+        throw new FileNotFoundException();
+    }
+
+    private boolean connectAndWait() {
+        Intent intent = new Intent(getContext(), XmppConnectionService.class);
+        intent.setAction("contact_chooser");
+        Context context = getContext();
+        if (context != null) {
+            context.startService(intent);
+            context.bindService(intent, this, Context.BIND_AUTO_CREATE);
+            try {
+                waitForService();
+                Log.d(Config.LOGTAG, "service initialized");
+                return true;
+            } catch (InterruptedException e) {
+                return false;
+            }
+        } else {
+            Log.d(Config.LOGTAG, "context was null");
+            return false;
+        }
+    }
+
+    @Override
+    public void onServiceConnected(ComponentName name, IBinder service) {
+        XmppConnectionService.XmppConnectionBinder binder = (XmppConnectionService.XmppConnectionBinder) service;
+        mXmppConnectionService = binder.getService();
+        synchronized (this.lock) {
+            lock.notifyAll();
+        }
+    }
+
+    @Override
+    public void onServiceDisconnected(ComponentName name) {
+        mXmppConnectionService = null;
+    }
+
+    private void waitForService() throws InterruptedException {
+        if (mXmppConnectionService == null) {
+            synchronized (this.lock) {
+                lock.wait();
+            }
+        }
+    }
+
+    public static Uri getUriForAccount(Account account) {
+        return Uri.parse("content://" + AUTHORITY + "/" + account.getJid().toBareJid() + ".png");
+    }
+
+    public static Bitmap createAztecBitmap(String input, int size) {
+        try {
+            final AztecWriter AZTEC_WRITER = new AztecWriter();
+            final Hashtable<EncodeHintType, Object> hints = new Hashtable<>();
+            hints.put(EncodeHintType.ERROR_CORRECTION, 10);
+            final BitMatrix result = AZTEC_WRITER.encode(input, BarcodeFormat.AZTEC, size, size, hints);
+            final int width = result.getWidth();
+            final int height = result.getHeight();
+            final int[] pixels = new int[width * height];
+            for (int y = 0; y < height; y++) {
+                final int offset = y * width;
+                for (int x = 0; x < width; x++) {
+                    pixels[offset + x] = result.get(x, y) ? Color.BLACK : Color.TRANSPARENT;
+                }
+            }
+            final Bitmap bitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
+            bitmap.setPixels(pixels, 0, width, 0, 0, width, height);
+            return bitmap;
+        } catch (final Exception e) {
+            return null;
+        }
+    }
+
+    static class TransferThread extends Thread {
+        InputStream in;
+        OutputStream out;
+
+        TransferThread(InputStream in, OutputStream out) {
+            this.in = in;
+            this.out = out;
+        }
+
+        @Override
+        public void run() {
+            byte[] buf = new byte[1024];
+            int len;
+
+            try {
+                while ((len = in.read(buf)) >= 0) {
+                    out.write(buf, 0, len);
+                }
+
+                in.close();
+                out.flush();
+                out.close();
+            } catch (IOException e) {
+                Log.e(Config.LOGTAG, "Exception transferring file", e);
+            }
+        }
+    }
+}