Global Proxy changes to proxy class. (16fb7910) · Commits · e / os / android_frameworks_base

core/java/android/net/Proxy.java

+310 −56

Original line number	Diff line number	Diff line
		@@ -16,32 +16,168 @@

		package android.net;

		import org.apache.http.HttpHost;

		import android.content.ContentResolver;
		import android.content.Context;
		import android.database.ContentObserver;
		import android.os.Handler;
		import android.os.SystemProperties;
		import android.provider.Settings;
		import android.util.Log;

		import java.net.InetAddress;
		import java.net.InetSocketAddress;
		import java.net.SocketAddress;
		import java.net.URI;
		import java.net.UnknownHostException;
		import java.util.concurrent.locks.ReadWriteLock;
		import java.util.concurrent.locks.ReentrantReadWriteLock;
		import java.util.regex.Matcher;
		import java.util.regex.Pattern;

		import junit.framework.Assert;

		import org.apache.http.HttpHost;

		/**
		* A convenience class for accessing the user and default proxy
		* settings.
		*/
		final public class Proxy {
		public final class Proxy {

		// Set to true to enable extra debugging.
		static final private boolean DEBUG = false;
		private static final boolean DEBUG = false;

		static final public String PROXY_CHANGE_ACTION =
		public static final String PROXY_CHANGE_ACTION =
		"android.intent.action.PROXY_CHANGE";

		private static ReadWriteLock sProxyInfoLock = new ReentrantReadWriteLock();

		private static SettingsObserver sGlobalProxyChangedObserver = null;

		private static ProxySpec sGlobalProxySpec = null;

		// Hostname / IP REGEX validation
		// Matches blank input, ips, and domain names
		private static final String NAME_IP_REGEX =
		"[a-zA-Z0-9]+(\\-[a-zA-Z0-9]+)(\\.[a-zA-Z0-9]+(\\-[a-zA-Z0-9]+))*";

		private static final String HOSTNAME_REGEXP = "^$\|^" + NAME_IP_REGEX + "$";

		private static final Pattern HOSTNAME_PATTERN;

		private static final String EXCLLIST_REGEXP = "$\|^(.?" + NAME_IP_REGEX
		+ ")+(,(.?" + NAME_IP_REGEX + "))*$";

		private static final Pattern EXCLLIST_PATTERN;

		static {
		HOSTNAME_PATTERN = Pattern.compile(HOSTNAME_REGEXP);
		EXCLLIST_PATTERN = Pattern.compile(EXCLLIST_REGEXP);
		}

		private static class ProxySpec {
		String[] exclusionList = null;
		InetSocketAddress proxyAddress = null;
		public ProxySpec() { };
		}

		private static boolean isURLInExclusionListReadLocked(String url, String[] exclusionList) {
		if (exclusionList == null) {
		return false;
		}
		Uri u = Uri.parse(url);
		String urlDomain = u.getHost();
		// If the domain is defined as ".android.com" or "android.com", we wish to match
		// http://android.com as well as http://xxx.android.com , but not
		// http://myandroid.com . This code works out the logic.
		for (String excludedDomain : exclusionList) {
		String dotDomain = "." + excludedDomain;
		if (urlDomain.equals(excludedDomain)) {
		return true;
		}
		if (urlDomain.endsWith(dotDomain)) {
		return true;
		}
		}
		// No match
		return false;
		}

		private static String parseHost(String proxySpec) {
		int i = proxySpec.indexOf(':');
		if (i == -1) {
		if (DEBUG) {
		Assert.assertTrue(proxySpec.length() == 0);
		}
		return null;
		}
		return proxySpec.substring(0, i);
		}

		private static int parsePort(String proxySpec) {
		int i = proxySpec.indexOf(':');
		if (i == -1) {
		if (DEBUG) {
		Assert.assertTrue(proxySpec.length() == 0);
		}
		return -1;
		}
		if (DEBUG) {
		Assert.assertTrue(i < proxySpec.length());
		}
		return Integer.parseInt(proxySpec.substring(i+1));
		}

		/**
		* Return the proxy object to be used for the URL given as parameter.
		* @param ctx A Context used to get the settings for the proxy host.
		* @param url A URL to be accessed. Used to evaluate exclusion list.
		* @return Proxy (java.net) object containing the host name. If the
		* user did not set a hostname it returns the default host.
		* A null value means that no host is to be used.
		* {@hide}
		*/
		public static final java.net.Proxy getProxy(Context ctx, String url) {
		sProxyInfoLock.readLock().lock();
		try {
		if (sGlobalProxyChangedObserver == null) {
		registerContentObserversReadLocked(ctx);
		parseGlobalProxyInfoReadLocked(ctx);
		}
		if (sGlobalProxySpec != null) {
		// Proxy defined - Apply exclusion rules
		if (isURLInExclusionListReadLocked(url, sGlobalProxySpec.exclusionList)) {
		// Return no proxy
		return java.net.Proxy.NO_PROXY;
		}
		java.net.Proxy retProxy =
		new java.net.Proxy(java.net.Proxy.Type.HTTP, sGlobalProxySpec.proxyAddress);
		sProxyInfoLock.readLock().unlock();
		if (isLocalHost(url)) {
		return java.net.Proxy.NO_PROXY;
		}
		sProxyInfoLock.readLock().lock();
		return retProxy;
		} else {
		// If network is WiFi, return no proxy.
		// Otherwise, return the Mobile Operator proxy.
		if (!isNetworkWifi(ctx)) {
		java.net.Proxy retProxy = getDefaultProxy(url);
		sProxyInfoLock.readLock().unlock();
		if (isLocalHost(url)) {
		return java.net.Proxy.NO_PROXY;
		}
		sProxyInfoLock.readLock().lock();
		return retProxy;
		} else {
		return java.net.Proxy.NO_PROXY;
		}
		}
		} finally {
		sProxyInfoLock.readLock().unlock();
		}
		}

		// TODO: deprecate this function
		/**
		* Return the proxy host set by the user.
		* @param ctx A Context used to get the settings for the proxy host.
		@@ -49,58 +185,53 @@ final public class Proxy {
		* name it returns the default host. A null value means that no
		* host is to be used.
		*/
		static final public String getHost(Context ctx) {
		ContentResolver contentResolver = ctx.getContentResolver();
		Assert.assertNotNull(contentResolver);
		String host = Settings.Secure.getString(
		contentResolver,
		Settings.Secure.HTTP_PROXY);
		if (host != null) {
		int i = host.indexOf(':');
		if (i == -1) {
		if (DEBUG) {
		Assert.assertTrue(host.length() == 0);
		}
		return null;
		public static final String getHost(Context ctx) {
		sProxyInfoLock.readLock().lock();
		try {
		if (sGlobalProxyChangedObserver == null) {
		registerContentObserversReadLocked(ctx);
		parseGlobalProxyInfoReadLocked(ctx);
		}
		return host.substring(0, i);
		if (sGlobalProxySpec != null) {
		InetSocketAddress sa = sGlobalProxySpec.proxyAddress;
		return sa.getHostName();
		}
		return getDefaultHost();
		} finally {
		sProxyInfoLock.readLock().unlock();
		}
		}

		// TODO: deprecate this function
		/**
		* Return the proxy port set by the user.
		* @param ctx A Context used to get the settings for the proxy port.
		* @return The port number to use or -1 if no proxy is to be used.
		*/
		static final public int getPort(Context ctx) {
		ContentResolver contentResolver = ctx.getContentResolver();
		Assert.assertNotNull(contentResolver);
		String host = Settings.Secure.getString(
		contentResolver,
		Settings.Secure.HTTP_PROXY);
		if (host != null) {
		int i = host.indexOf(':');
		if (i == -1) {
		if (DEBUG) {
		Assert.assertTrue(host.length() == 0);
		}
		return -1;
		}
		if (DEBUG) {
		Assert.assertTrue(i < host.length());
		public static final int getPort(Context ctx) {
		sProxyInfoLock.readLock().lock();
		try {
		if (sGlobalProxyChangedObserver == null) {
		registerContentObserversReadLocked(ctx);
		parseGlobalProxyInfoReadLocked(ctx);
		}
		return Integer.parseInt(host.substring(i+1));
		if (sGlobalProxySpec != null) {
		InetSocketAddress sa = sGlobalProxySpec.proxyAddress;
		return sa.getPort();
		}
		return getDefaultPort();
		} finally {
		sProxyInfoLock.readLock().unlock();
		}
		}

		// TODO: deprecate this function
		/**
		* Return the default proxy host specified by the carrier.
		* @return String containing the host name or null if there is no proxy for
		* this carrier.
		*/
		static final public String getDefaultHost() {
		public static final String getDefaultHost() {
		String host = SystemProperties.get("net.gprs.http-proxy");
		if (host != null) {
		Uri u = Uri.parse(host);
		@@ -111,12 +242,13 @@ final public class Proxy {
		}
		}

		// TODO: deprecate this function
		/**
		* Return the default proxy port specified by the carrier.
		* @return The port number to be used with the proxy host or -1 if there is
		* no proxy for this carrier.
		*/
		static final public int getDefaultPort() {
		public static final int getDefaultPort() {
		String host = SystemProperties.get("net.gprs.http-proxy");
		if (host != null) {
		Uri u = Uri.parse(host);
		@@ -126,6 +258,20 @@ final public class Proxy {
		}
		}

		private static final java.net.Proxy getDefaultProxy(String url) {
		// TODO: This will go away when information is collected from ConnectivityManager...
		// There are broadcast of network proxies, so they are parse manually.
		String host = SystemProperties.get("net.gprs.http-proxy");
		if (host != null) {
		Uri u = Uri.parse(host);
		return new java.net.Proxy(java.net.Proxy.Type.HTTP,
		new InetSocketAddress(u.getHost(), u.getPort()));
		} else {
		return java.net.Proxy.NO_PROXY;
		}
		}

		// TODO: remove this function / deprecate
		/**
		* Returns the preferred proxy to be used by clients. This is a wrapper
		* around {@link android.net.Proxy#getHost()}. Currently no proxy will
		@@ -138,26 +284,23 @@ final public class Proxy {
		* android.permission.ACCESS_NETWORK_STATE
		* @return The preferred proxy to be used by clients, or null if there
		* is no proxy.
		*
		* {@hide}
		*/
		static final public HttpHost getPreferredHttpHost(Context context,
		public static final HttpHost getPreferredHttpHost(Context context,
		String url) {
		if (!isLocalHost(url) && !isNetworkWifi(context)) {
		final String proxyHost = Proxy.getHost(context);
		if (proxyHost != null) {
		return new HttpHost(proxyHost, Proxy.getPort(context), "http");
		}
		}

		java.net.Proxy prefProxy = getProxy(context, url);
		if (prefProxy.equals(java.net.Proxy.NO_PROXY)) {
		return null;
		} else {
		InetSocketAddress sa = (InetSocketAddress)prefProxy.address();
		return new HttpHost(sa.getHostName(), sa.getPort(), "http");
		}
		}

		static final private boolean isLocalHost(String url) {
		private static final boolean isLocalHost(String url) {
		if (url == null) {
		return false;
		}

		try {
		final URI uri = URI.create(url);
		final String host = uri.getHost();
		@@ -174,15 +317,13 @@ final public class Proxy {
		} catch (IllegalArgumentException iex) {
		// Ignore (URI.create)
		}

		return false;
		}

		static final private boolean isNetworkWifi(Context context) {
		private static final boolean isNetworkWifi(Context context) {
		if (context == null) {
		return false;
		}

		final ConnectivityManager connectivity = (ConnectivityManager)
		context.getSystemService(Context.CONNECTIVITY_SERVICE);
		if (connectivity != null) {
		@@ -192,7 +333,120 @@ final public class Proxy {
		return true;
		}
		}

		return false;
		}
		};

		private static class SettingsObserver extends ContentObserver {

		private Context mContext;

		SettingsObserver(Context ctx) {
		super(new Handler());
		mContext = ctx;
		}

		@Override
		public void onChange(boolean selfChange) {
		sProxyInfoLock.readLock().lock();
		parseGlobalProxyInfoReadLocked(mContext);
		sProxyInfoLock.readLock().unlock();
		}
		}

		private static final void registerContentObserversReadLocked(Context ctx) {
		Uri uriGlobalProxy = Settings.Secure.getUriFor(Settings.Secure.HTTP_PROXY);
		Uri uriGlobalExclList =
		Settings.Secure.getUriFor(Settings.Secure.HTTP_PROXY_EXCLUSION_LIST);

		// No lock upgrading (from read to write) allowed
		sProxyInfoLock.readLock().unlock();
		sProxyInfoLock.writeLock().lock();
		sGlobalProxyChangedObserver = new SettingsObserver(ctx);
		// Downgrading locks (from write to read) is allowed
		sProxyInfoLock.readLock().lock();
		sProxyInfoLock.writeLock().unlock();
		ctx.getContentResolver().registerContentObserver(uriGlobalProxy, false,
		sGlobalProxyChangedObserver);
		ctx.getContentResolver().registerContentObserver(uriGlobalExclList, false,
		sGlobalProxyChangedObserver);
		}

		private static final void parseGlobalProxyInfoReadLocked(Context ctx) {
		ContentResolver contentResolver = ctx.getContentResolver();
		String proxyHost = Settings.Secure.getString(
		contentResolver,
		Settings.Secure.HTTP_PROXY);
		if (proxyHost == null) {
		return;
		}
		String exclusionListSpec = Settings.Secure.getString(
		contentResolver,
		Settings.Secure.HTTP_PROXY_EXCLUSION_LIST);
		String host = parseHost(proxyHost);
		int port = parsePort(proxyHost);
		if (proxyHost != null) {
		sGlobalProxySpec = new ProxySpec();
		sGlobalProxySpec.proxyAddress = new InetSocketAddress(host, port);
		if (exclusionListSpec != null) {
		String[] exclusionListEntries = exclusionListSpec.toLowerCase().split(",");
		String[] processedEntries = new String[exclusionListEntries.length];
		for (int i = 0; i < exclusionListEntries.length; i++) {
		String entry = exclusionListEntries[i].trim();
		if (entry.startsWith(".")) {
		entry = entry.substring(1);
		}
		processedEntries[i] = entry;
		}
		sProxyInfoLock.readLock().unlock();
		sProxyInfoLock.writeLock().lock();
		sGlobalProxySpec.exclusionList = processedEntries;
		} else {
		sProxyInfoLock.readLock().unlock();
		sProxyInfoLock.writeLock().lock();
		sGlobalProxySpec.exclusionList = null;
		}
		} else {
		sProxyInfoLock.readLock().unlock();
		sProxyInfoLock.writeLock().lock();
		sGlobalProxySpec = null;
		}
		sProxyInfoLock.readLock().lock();
		sProxyInfoLock.writeLock().unlock();
		}

		/**
		* Validate syntax of hostname, port and exclusion list entries
		* {@hide}
		*/
		public static void validate(String hostname, String port, String exclList) {
		Matcher match = HOSTNAME_PATTERN.matcher(hostname);
		Matcher listMatch = EXCLLIST_PATTERN.matcher(exclList);

		if (!match.matches()) {
		throw new IllegalArgumentException();
		}

		if (!listMatch.matches()) {
		throw new IllegalArgumentException();
		}

		if (hostname.length() > 0 && port.length() == 0) {
		throw new IllegalArgumentException();
		}

		if (port.length() > 0) {
		if (hostname.length() == 0) {
		throw new IllegalArgumentException();
		}
		int portVal = -1;
		try {
		portVal = Integer.parseInt(port);
		} catch (NumberFormatException ex) {
		throw new IllegalArgumentException();
		}
		if (portVal <= 0 \|\| portVal > 0xFFFF) {
		throw new IllegalArgumentException();
		}
		}
		}
		}

core/java/android/provider/Settings.java

+16 −1

Original line number	Diff line number	Diff line
		@@ -2321,10 +2321,25 @@ public final class Settings {
		public static final String DISABLED_SYSTEM_INPUT_METHODS = "disabled_system_input_methods";

		/**
		* Host name and port for a user-selected proxy.
		* Host name and port for global proxy.
		*/
		public static final String HTTP_PROXY = "http_proxy";

		/**
		* Exclusion list for global proxy. This string contains a list of comma-separated
		* domains where the global proxy does not apply. Domains should be listed in a comma-
		* separated list. Example of acceptable formats: ".domain1.com,my.domain2.com"
		* @hide
		*/
		public static final String HTTP_PROXY_EXCLUSION_LIST = "http_proxy_exclusion_list";

		/**
		* Enables the UI setting to allow the user to specify the global HTTP proxy
		* and associated exclusion list.
		* @hide
		*/
		public static final String SET_GLOBAL_HTTP_PROXY = "set_global_http_proxy";

		/**
		* Whether the package installer should allow installation of apps downloaded from
		* sources other than the Android Market (vending machine).