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Code Issues Projects Releases Wiki Activity

Don't create lots of temporary File objects.

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This commit is contained in:
akwizgran
2013-04-25 15:18:36 +01:00
parent 6c4c0926c5
commit 1f8c9cc977
1 changed files with 30 additions and 53 deletions
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83
briar-core/src/net/sf/briar/plugins/tor/TorPlugin.java
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@@ -63,6 +63,8 @@ class TorPlugin implements DuplexPlugin, EventHandler {
private final Context appContext;
private final DuplexPluginCallback callback;
private final long maxLatency, pollingInterval;
private final File torDirectory, torFile, geoIpFile, configFile, doneFile;
private final File cookieFile, hostnameFile;
private volatile boolean running = false;
private volatile Process tor = null;
@@ -76,6 +78,13 @@ class TorPlugin implements DuplexPlugin, EventHandler {
this.callback = callback;
this.maxLatency = maxLatency;
this.pollingInterval = pollingInterval;
torDirectory = appContext.getDir("tor", MODE_PRIVATE);
torFile = new File(torDirectory, "tor");
geoIpFile = new File(torDirectory, "geoip");
configFile = new File(torDirectory, "torrc");
doneFile = new File(torDirectory, "done");
cookieFile = new File(torDirectory, ".tor/control_auth_cookie");
hostnameFile = new File(torDirectory, "hostname");
}
public TransportId getId() {
@@ -97,7 +106,7 @@ class TorPlugin implements DuplexPlugin, EventHandler {
LOG.info("No Tor binary for this architecture");
return false;
}
// Try to connect to an existing Tor process, if any
// Try to connect to an existing Tor process if there is one
Socket s;
try {
s = new Socket("127.0.0.1", CONTROL_PORT); // FIXME: Never closed
@@ -110,21 +119,18 @@ class TorPlugin implements DuplexPlugin, EventHandler {
}
if(LOG.isLoggable(INFO)) LOG.info("Starting Tor");
// Watch for the auth cookie file being created/updated
File cookieFile = getCookieFile();
cookieFile.getParentFile().mkdirs();
cookieFile.createNewFile();
CountDownLatch latch = new CountDownLatch(1);
FileObserver obs = new WriteObserver(cookieFile, latch);
obs.startWatching();
// Start a new Tor process
String torPath = getTorFile().getAbsolutePath();
String configPath = getConfigFile().getAbsolutePath();
String[] command = { torPath, "-f", configPath };
String home = "HOME=" + getTorDirectory().getAbsolutePath();
String[] environment = { home };
File dir = getTorDirectory();
String torPath = torFile.getAbsolutePath();
String configPath = configFile.getAbsolutePath();
String[] cmd = { torPath, "-f", configPath };
String[] env = { "HOME=" + torDirectory.getAbsolutePath() };
try {
tor = Runtime.getRuntime().exec(command, environment, dir);
tor = Runtime.getRuntime().exec(cmd, env, torDirectory);
} catch(SecurityException e1) {
if(LOG.isLoggable(WARNING)) LOG.log(WARNING, e1.toString(), e1);
return false;
@@ -136,7 +142,7 @@ class TorPlugin implements DuplexPlugin, EventHandler {
stdout.close();
}
try {
// Wait for the process to detach successfully
// Wait for the process to detach or exit
int exit = tor.waitFor();
if(exit != 0) {
if(LOG.isLoggable(WARNING))
@@ -147,7 +153,7 @@ class TorPlugin implements DuplexPlugin, EventHandler {
if(!latch.await(COOKIE_TIMEOUT, MILLISECONDS)) {
if(LOG.isLoggable(WARNING))
LOG.warning("Auth cookie not created");
listFiles(getTorDirectory());
listFiles(torDirectory);
return false;
}
} catch(InterruptedException e1) {
@@ -161,7 +167,8 @@ class TorPlugin implements DuplexPlugin, EventHandler {
// Open a control connection and authenticate using the cookie file
TorControlConnection control = new TorControlConnection(s);
control.launchThread(true);
control.authenticate(read(getCookieFile()));
control.authenticate(read(cookieFile));
// Register to receive events from the Tor process
control.setEventHandler(this);
control.setEvents(Arrays.asList("NOTICE", "WARN", "ERR"));
running = true;
@@ -175,7 +182,7 @@ class TorPlugin implements DuplexPlugin, EventHandler {
}
private boolean isInstalled() {
return getDoneFile().exists();
return doneFile.exists();
}
private boolean install() {
@@ -184,25 +191,24 @@ class TorPlugin implements DuplexPlugin, EventHandler {
try {
// Unzip the Tor binary to the filesystem
in = getTorInputStream();
out = new FileOutputStream(getTorFile());
out = new FileOutputStream(torFile);
copy(in, out);
// Unzip the GeoIP database to the filesystem
in = getGeoIpInputStream();
out = new FileOutputStream(getGeoIpFile());
out = new FileOutputStream(geoIpFile);
copy(in, out);
// Copy the config file to the filesystem
in = getConfigInputStream();
out = new FileOutputStream(getConfigFile());
out = new FileOutputStream(configFile);
copy(in, out);
// Make the Tor binary executable
if(!setExecutable(getTorFile())) {
if(!setExecutable(torFile)) {
if(LOG.isLoggable(WARNING))
LOG.warning("Could not make Tor executable");
return false;
}
// Create a file to indicate that installation succeeded
File done = getDoneFile();
done.createNewFile();
doneFile.createNewFile();
return true;
} catch(IOException e) {
if(LOG.isLoggable(WARNING)) LOG.log(WARNING, e.toString(), e);
@@ -339,7 +345,6 @@ class TorPlugin implements DuplexPlugin, EventHandler {
private void publishHiddenService(final String port) {
if(!running) return;
File hostnameFile = getHostnameFile();
if(!hostnameFile.exists()) {
if(LOG.isLoggable(INFO)) LOG.info("Creating hidden service");
try {
@@ -350,21 +355,21 @@ class TorPlugin implements DuplexPlugin, EventHandler {
FileObserver obs = new WriteObserver(hostnameFile, latch);
obs.startWatching();
// Open a control connection and update the Tor config
String dir = getTorDirectory().getAbsolutePath();
List<String> config = Arrays.asList("HiddenServiceDir " + dir,
List<String> config = Arrays.asList(
"HiddenServiceDir " + torDirectory.getAbsolutePath(),
"HiddenServicePort 80 127.0.0.1:" + port);
// FIXME: Socket isn't closed
Socket s = new Socket("127.0.0.1", CONTROL_PORT);
TorControlConnection control = new TorControlConnection(s);
control.launchThread(true);
control.authenticate(read(getCookieFile()));
control.authenticate(read(cookieFile));
control.setConf(config);
control.saveConf();
// Wait for the hostname file to be created/updated
if(!latch.await(HOSTNAME_TIMEOUT, MILLISECONDS)) {
if(LOG.isLoggable(WARNING))
LOG.warning("Hidden service not created");
listFiles(getTorDirectory());
listFiles(torDirectory);
return;
}
if(!running) return;
@@ -414,7 +419,7 @@ class TorPlugin implements DuplexPlugin, EventHandler {
Socket s = new Socket("127.0.0.1", CONTROL_PORT);
TorControlConnection control = new TorControlConnection(s);
control.launchThread(true);
control.authenticate(read(getCookieFile()));
control.authenticate(read(cookieFile));
control.shutdownTor("TERM");
} catch(IOException e) {
if(LOG.isLoggable(WARNING)) LOG.log(WARNING, e.toString(), e);
@@ -489,34 +494,6 @@ class TorPlugin implements DuplexPlugin, EventHandler {
throw new UnsupportedOperationException();
}
private File getTorFile() {
return new File(getTorDirectory(), "tor");
}
private File getGeoIpFile() {
return new File(getTorDirectory(), "geoip");
}
private File getConfigFile() {
return new File(getTorDirectory(), "torrc");
}
private File getDoneFile() {
return new File(getTorDirectory(), "done");
}
private File getCookieFile() {
return new File(getTorDirectory(), ".tor/control_auth_cookie");
}
private File getHostnameFile() {
return new File(getTorDirectory(), "hostname");
}
private File getTorDirectory() {
return appContext.getDir("tor", MODE_PRIVATE);
}
private void listFiles(File f) {
if(f.isDirectory()) for(File f1 : f.listFiles()) listFiles(f1);
else if(LOG.isLoggable(INFO)) LOG.info(f.getAbsolutePath());