private static void acquireProxyStatusSDK1_11(
ProxyConfiguration conf, ProxyStatus status, EnumSet<ProxyCheckOptions> checkOptions) {
// API version <= 11 (Older devices)
status.set(ProxyStatusProperties.WIFI_ENABLED, CheckStatusValues.NOT_CHECKED, false, false);
status.set(ProxyStatusProperties.WIFI_SELECTED, CheckStatusValues.NOT_CHECKED, false, false);
LogWrapper.d(TAG, "Checking if proxy is enabled ...");
status.set(isProxyEnabled(conf));
broadCastUpdatedStatus();
if (status.getProperty(ProxyStatusProperties.PROXY_ENABLED).result) {
LogWrapper.d(TAG, "Checking if proxy is valid hostname ...");
status.set(isProxyValidHostname(conf));
broadCastUpdatedStatus();
LogWrapper.d(TAG, "Checking if proxy is valid port ...");
status.set(isProxyValidPort(conf));
broadCastUpdatedStatus();
if (checkOptions.contains(ProxyCheckOptions.ONLINE_CHECK)
&& status.getProperty(ProxyStatusProperties.PROXY_VALID_HOSTNAME).result
&& status.getProperty(ProxyStatusProperties.PROXY_VALID_PORT).result) {
LogWrapper.d(TAG, "Checking if proxy is reachable ...");
status.set(isProxyReachable(conf));
broadCastUpdatedStatus();
} else {
status.set(
ProxyStatusProperties.PROXY_REACHABLE, CheckStatusValues.NOT_CHECKED, false, false);
}
} else {
wifiNotEnabled_DisableChecking(status);
}
}
public static boolean canGetWebResources(ProxyConfiguration proxyConfiguration, int timeout) {
try {
// TODO: add better method to check web resources
int result = testHTTPConnection(new URI("http://www.un.org/"), proxyConfiguration, timeout);
// int rawresult = testHTTPConnection(new URI("http://157.150.34.32"),
// proxyConfiguration, timeout);
switch (result) {
case HttpURLConnection.HTTP_OK:
case HttpURLConnection.HTTP_CREATED:
case HttpURLConnection.HTTP_NO_CONTENT:
case HttpURLConnection.HTTP_NOT_AUTHORITATIVE:
case HttpURLConnection.HTTP_ACCEPTED:
case HttpURLConnection.HTTP_PARTIAL:
case HttpURLConnection.HTTP_RESET:
return true;
default:
return false;
}
} catch (URISyntaxException e) {
LogWrapper.w(TAG, e.toString());
// APL.getEventReport().send(e);
}
return false;
}
public static boolean lowLevelPingHost(Proxy proxy) {
int exitValue;
Runtime runtime = Runtime.getRuntime();
Process proc;
String cmdline = null;
String proxyAddress = null;
try {
InetSocketAddress proxySocketAddress = (InetSocketAddress) proxy.address();
proxyAddress = proxySocketAddress.getAddress().getHostAddress();
} catch (Exception e) {
APL.getEventReport()
.send(
new Exception(
"ProxyUtils.lowLevelPingHost() Exception calling getAddress().getHostAddress() on proxySocketAddress : ",
e));
}
if (proxyAddress == null) {
try {
InetSocketAddress proxySocketAddress = (InetSocketAddress) proxy.address();
proxyAddress = proxySocketAddress.toString();
} catch (Exception e) {
APL.getEventReport()
.send(
new Exception(
"ProxyUtils.lowLevelPingHost() Exception calling toString() on proxySocketAddress",
e));
}
}
if (proxyAddress != null) {
cmdline = "ping -c 1 -w 1 " + proxyAddress;
try {
proc = runtime.exec(cmdline);
proc.waitFor();
exitValue = proc.exitValue();
LogWrapper.d(TAG, "Ping exit value: " + exitValue);
if (exitValue == 0) {
return true;
} else {
return false;
}
} catch (IOException e) {
APL.getEventReport().send(new Exception("ProxyUtils.lowLevelPingHost() IOException", e));
} catch (InterruptedException e) {
APL.getEventReport()
.send(new Exception("ProxyUtils.lowLevelPingHost() InterruptedException", e));
}
}
return false;
}
public static int testHTTPConnection(
URI uri, ProxyConfiguration proxyConfiguration, int timeout) {
int step = 0;
while (step < 5) {
try {
URL url = uri.toURL();
if (proxyConfiguration != null && proxyConfiguration.getProxyType() == Type.HTTP) {
System.setProperty("http.proxyHost", proxyConfiguration.getProxyIPHost());
System.setProperty("http.proxyPort", proxyConfiguration.getProxyPort().toString());
} else {
System.setProperty("http.proxyHost", "");
System.setProperty("http.proxyPort", "");
}
HttpURLConnection httpURLConnection = (HttpURLConnection) url.openConnection();
httpURLConnection.setReadTimeout(timeout);
httpURLConnection.setConnectTimeout(timeout);
int result = httpURLConnection.getResponseCode();
return result;
} catch (Exception e) {
LogWrapper.w(TAG, e.toString());
}
step++;
try {
Thread.sleep(500);
} catch (InterruptedException e) {
APL.getEventReport().send(e);
return -1;
}
}
return -1;
}
/**
* Can take a long time to execute this task. - Check if the proxy is enabled - Check if the proxy
* address is valid - Check if the proxy is reachable (using a PING) - Check if is possible to
* retrieve an URI resource using the proxy
*/
public static void acquireProxyStatus(
ProxyConfiguration conf,
ProxyStatus status,
EnumSet<ProxyCheckOptions> checkOptions,
int timeout) {
status.clear();
status.startchecking();
broadCastUpdatedStatus();
if (Build.VERSION.SDK_INT >= 12) {
acquireProxyStatusSDK12(conf, status, checkOptions);
} else {
acquireProxyStatusSDK1_11(conf, status, checkOptions);
}
if (checkOptions.contains(ProxyCheckOptions.ONLINE_CHECK)) {
// Always check if WEB is reachable
LogWrapper.d(TAG, "Checking if web is reachable ...");
status.set(isWebReachable(conf, timeout));
broadCastUpdatedStatus();
} else {
status.set(ProxyStatusProperties.WEB_REACHABLE, CheckStatusValues.NOT_CHECKED, false, false);
}
}