Example usage for android.content Context openFileInput

Introduction

In this page you can find the example usage for android.content Context openFileInput.

Prototype

public abstract FileInputStream openFileInput(String name) throws FileNotFoundException;

Source Link

Document

Open a private file associated with this Context's application package for reading.

Usage

From source file:net.tawacentral.roger.secrets.FileUtils.java

/**
 * Gets the salt and rounds already in use on this device, or null if none
 * exists./*from   w  w  w. j av a 2  s.  com*/
 *
 * @param context Activity context in which the save is called.
 * @param path The file to read the salt and rounds from.  Can either be the
 *     string SECRETS_FILE_NAME_SDCARD, SECRETS_FILE_NAME, or the  name of a
 *     restore point.
 * @return the salt and rounds
 */
public static SaltAndRounds getSaltAndRounds(Context context, String path) {
    // The salt is stored as a byte array at the start of the secrets file.
    FileInputStream input = null;
    try {
        input = SECRETS_FILE_NAME_SDCARD.equals(path) ? new FileInputStream(path) : context.openFileInput(path);
        return getSaltAndRounds(input);
    } catch (Exception ex) {
        Log.e(LOG_TAG, "getSaltAndRounds", ex);
    } finally {
        try {
            if (null != input)
                input.close();
        } catch (IOException ex) {
        }
    }
    return new SaltAndRounds(null, 0);
}

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From source file:com.rcythr.masq.keymanagement.KeyManager.java

/**
 * Returns a file in stream for a keystore. It will use the settings loaded to determine where it is.
 * @param context the context to use/*  ww w  . jav  a 2 s.  c om*/
 * @return the opened FileInputStream 
 * 
 * @throws FileNotFoundException if the file is not found
 */
private FileInputStream getAssociatedInFileStream(Context context) throws FileNotFoundException {
    if (internalStorage) {
        return context.openFileInput(KEYSTORE);
    } else {
        return new FileInputStream(getSDCardFile());
    }
}

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From source file:com.mhise.util.MHISEUtil.java

public static PrivateKey readKey(Context context) throws Exception {

    String keyFile = "privateKey.key";
    FileInputStream fis = context.openFileInput(keyFile);
    int kl = fis.available();
    byte[] kb = new byte[kl];
    fis.read(kb);/*  w ww  .  j a va  2 s  .c o m*/
    fis.close();
    KeyFactory kf = KeyFactory.getInstance("RSA", "BC");
    PKCS8EncodedKeySpec ks = new PKCS8EncodedKeySpec(kb);
    PrivateKey pk = kf.generatePrivate(ks);

    return pk;
}

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From source file:com.denayer.ovsr.MyFTPClient.java

public boolean ftpUpload(String srcFilePath, String desFileName, String desDirectory, Context context) {
    boolean status = false;
    try {//from  w w  w. j ava2  s .com
        // FileInputStream srcFileStream = new FileInputStream(srcFilePath);

        FileInputStream srcFileStream = context.openFileInput(srcFilePath);

        // change working directory to the destination directory
        //if (ftpChangeDirectory(desDirectory)) {
        status = mFTPClient.storeFile(desFileName, srcFileStream);
        //}

        srcFileStream.close();
        return status;
    } catch (Exception e) {
        Log.d(TAG, "upload failed: " + e);
    }

    return status;
}

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From source file:org.onepf.opfmaps.osmdroid.model.BitmapDescriptor.java

@NonNull
private InputStream createStream(@NonNull final Context context) throws IOException {
    if (path == null) {
        throw new IllegalArgumentException("Path can't be null");
    }/*from ww w  .ja  v  a  2s .  c  o  m*/

    switch (source) {
    case ASSET:
        return context.getAssets().open(path);
    case FILE_NAME:
        return context.openFileInput(path);
    }

    throw new IllegalArgumentException("Wrong source : " + source);
}

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From source file:net.tawacentral.roger.secrets.FileUtils.java

/**
 * Opens the secrets file using the password retrieved from the user.
 *
 * @param context Activity context in which the load is called.
 * @param fileName Name of file to be loaded
 * @param info CipherInfo// w  ww  . j a v  a2 s.  c o  m
 * @return A list of loaded secrets.
 */
public static ArrayList<Secret> loadSecrets(Context context, String fileName, CipherInfo info) {
    Log.d(LOG_TAG, "FileUtils.loadSecrets");

    if (null == info)
        return null;

    ArrayList<Secret> secrets = null;
    InputStream input = null;

    try {
        input = SECRETS_FILE_NAME_SDCARD.equals(fileName) ? new FileInputStream(fileName)
                : context.openFileInput(fileName);
        secrets = readSecrets(input, info.decryptCipher, info.salt, info.rounds);
    } catch (Exception ex) {
        Log.e(LOG_TAG, "loadSecrets", ex);
    } finally {
        try {
            if (null != input)
                input.close();
        } catch (IOException ex) {
        }
    }
    Log.d(LOG_TAG, "FileUtils.loadSecrets: done");
    return secrets;
}

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From source file:net.tawacentral.roger.secrets.FileUtils.java

/**
 * See previous method for description.//  ww w.j a  v  a 2  s  .  c  o m
 *
 * @param context
 *          Activity context in which the load is called.
 * @param fileName Name of file to be loaded
 * @param info CipherInfo
 * @return A list of loaded secrets.
 */
public static ArrayList<Secret> loadSecretsV3(Context context, CipherInfo info, String fileName) {
    Log.d(LOG_TAG, "FileUtils.loadSecretsV3");

    if (null == info)
        return null;

    ArrayList<Secret> secrets = null;
    InputStream input = null;

    try {
        input = SECRETS_FILE_NAME_SDCARD.equals(fileName) ? new FileInputStream(fileName)
                : context.openFileInput(fileName);
        secrets = readSecretsV2(input, info.decryptCipher, info.salt, info.rounds);
    } catch (Exception ex) {
        Log.e(LOG_TAG, "loadSecretsV3", ex);
    } finally {
        try {
            if (null != input)
                input.close();
        } catch (IOException ex) {
        }
    }
    Log.d(LOG_TAG, "FileUtils.loadSecretsv3: done");
    return secrets;
}

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From source file:net.tawacentral.roger.secrets.FileUtils.java

/**
 * See previous method for description.//from w ww .  j  a v a 2 s  .c  om
 * 
 * @param context Activity context in which the load is called.
 * @param cipher Decryption cipher for old encryption.
 * @param fileName Name of file to be loaded
 * @return A list of loaded secrets.
 */
@SuppressWarnings("unchecked")
public static ArrayList<Secret> loadSecretsV1(Context context, Cipher cipher, String fileName) {
    Log.d(LOG_TAG, "FileUtils.loadSecretsV1");
    if (null == cipher)
        return null;

    ArrayList<Secret> secrets = null;
    ObjectInputStream input = null;

    try {
        InputStream fis = SECRETS_FILE_NAME_SDCARD.equals(fileName) ? new FileInputStream(fileName)
                : context.openFileInput(fileName);
        input = new ObjectInputStream(new CipherInputStream(fis, cipher));
        secrets = (ArrayList<Secret>) input.readObject();
    } catch (Exception ex) {
        Log.e(LOG_TAG, "loadSecretsV1", ex);
    } finally {
        try {
            if (null != input)
                input.close();
        } catch (IOException ex) {
        }
    }
    Log.d(LOG_TAG, "FileUtils.loadSecretsV1: done");
    return secrets;
}

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From source file:net.tawacentral.roger.secrets.FileUtils.java

/**
 * See previous method for description.// ww w  . j a  v  a  2  s.  co m
 *
 * @param context Activity context in which the load is called.
 * @param fileName Name of file to be loaded
 * @param cipher Decryption cipher for old encryption.
 * @param salt The salt to use when creating the encryption key.
 * @param rounds The number of rounds for bcrypt.
 * @return A list of loaded secrets.
 */
public static ArrayList<Secret> loadSecretsV2(Context context, String fileName, Cipher cipher, byte[] salt,
        int rounds) {
    Log.d(LOG_TAG, "FileUtils.loadSecretsV2");
    if (null == cipher)
        return null;
    ArrayList<Secret> secrets = null;
    InputStream input = null;

    try {
        input = SECRETS_FILE_NAME_SDCARD.equals(fileName) ? new FileInputStream(fileName)
                : context.openFileInput(fileName);
        secrets = readSecretsV2(input, cipher, salt, rounds);
    } catch (Exception ex) {
        Log.e(LOG_TAG, "loadSecretsV2", ex);
    } finally {
        try {
            if (null != input)
                input.close();
        } catch (IOException ex) {
        }
    }

    return secrets;
}

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From source file:org.blanco.techmun.android.cproviders.MensajesFetcher.java

private List<Mensaje> tryToLoadFromCache(Context context, boolean forceCacheLoad) {
    Long lastCache = PreferenceManager.getDefaultSharedPreferences(context).getLong("mensajes_last_cache", 1);
    long diff = System.currentTimeMillis() - lastCache;
    if (diff < 180000 && !forceCacheLoad) {
        //if the cache of the mensajes is greater than 3 minutes launch a new refresh
        return null;
    }/*from w  w w  . j av  a  2 s. c om*/
    try {
        FileInputStream mesasFIS = context.openFileInput("mensajes.df");
        ObjectInputStream mesasOIS = new ObjectInputStream(mesasFIS);
        List<Mensaje> result = (List<Mensaje>) mesasOIS.readObject();
        mesasOIS.close();
        return result;
    } catch (IOException e) {
        Log.e("tachmun",
                "Error opening cache file for mesas in content provider. " + "No cache will be restored", e);
        return null;
    } catch (ClassNotFoundException e) {
        Log.e("tachmun", "Error in cache file for mesas in content provider. "
                + "Something is there but is not a Mesas object. Cache no restored", e);
        return null;
    }
}

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