Merge branch 'check-if-listfiles-returns-null' into 'master'

Check whether File#listFiles() returns null

The docs say this can happen if there's an I/O error. Also fixed a throw-in-finally-block warning and renamed an IoUtils method to make its contract clearer.

See merge request !328
This commit is contained in:
Torsten Grote
2016-09-27 16:17:09 +00:00
6 changed files with 32 additions and 10 deletions

View File

@@ -42,14 +42,17 @@ public class AppModule {
this.application = application;
uiCallback = new UiCallback() {
@Override
public int showChoice(String[] options, String... message) {
throw new UnsupportedOperationException();
}
@Override
public boolean showConfirmationMessage(String... message) {
throw new UnsupportedOperationException();
}
@Override
public void showMessage(String... message) {
throw new UnsupportedOperationException();
}
@@ -75,24 +78,29 @@ public class AppModule {
private volatile SecretKey key = null;
@Override
public boolean databaseExists() {
if (!dir.isDirectory()) return false;
File[] files = dir.listFiles();
return files != null && files.length > 0;
}
@Override
public File getDatabaseDirectory() {
return dir;
}
@Override
public void setEncryptionKey(SecretKey key) {
this.key = key;
}
@Override
public SecretKey getEncryptionKey() {
return key;
}
@Override
public long getMaxSize() {
return Long.MAX_VALUE;
}

View File

@@ -248,17 +248,17 @@ class TorPlugin implements DuplexPlugin, EventHandler, EventListener {
// Unzip the Tor binary to the filesystem
in = getTorInputStream();
out = new FileOutputStream(torFile);
IoUtils.copy(in, out);
IoUtils.copyAndClose(in, out);
// Make the Tor binary executable
if (!torFile.setExecutable(true, true)) throw new IOException();
// Unzip the GeoIP database to the filesystem
in = getGeoIpInputStream();
out = new FileOutputStream(geoIpFile);
IoUtils.copy(in, out);
IoUtils.copyAndClose(in, out);
// Copy the config file to the filesystem
in = getConfigInputStream();
out = new FileOutputStream(configFile);
IoUtils.copy(in, out);
IoUtils.copyAndClose(in, out);
doneFile.createNewFile();
} catch (IOException e) {
tryToClose(in);
@@ -306,8 +306,12 @@ class TorPlugin implements DuplexPlugin, EventHandler, EventListener {
}
private void listFiles(File f) {
if (f.isDirectory()) for (File child : f.listFiles()) listFiles(child);
else LOG.info(f.getAbsolutePath());
if (f.isDirectory()) {
File[] children = f.listFiles();
if (children != null) for (File child : children) listFiles(child);
} else {
LOG.info(f.getAbsolutePath());
}
}
private byte[] read(File f) throws IOException {
@@ -322,7 +326,7 @@ class TorPlugin implements DuplexPlugin, EventHandler, EventListener {
}
return b;
} finally {
in.close();
tryToClose(in);
}
}