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package cgeo.geocaching;
import org.apache.commons.lang3.StringUtils;
import android.content.SharedPreferences;
import android.util.Log;
import java.net.URLConnection;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
/**
* Handle cookies obtained from web sites.
*
* No other place should touch cookies directly, as we want to make sure
* that the stored information is up-to-date.
*
*/
final public class CookieJar {
static private boolean cookiesLoaded = false;
final static private HashMap<String, String> cookies = new HashMap<String, String>();
static private String cache = null; // Cache information, or null if it has been invalidated
static private void loadCookiesIfNeeded(final SharedPreferences prefs) {
if (!cookiesLoaded) {
cookies.clear();
for (final Map.Entry<String, ?> entry : prefs.getAll().entrySet()) {
if (entry.getKey().startsWith("cookie_")) {
cookies.put(entry.getKey().substring(7), (String) entry.getValue());
}
}
cookiesLoaded = true;
}
}
static public synchronized void setCookie(final SharedPreferences prefs, final String name, final String value) {
loadCookiesIfNeeded(prefs);
if (!cookies.containsKey(name) || !cookies.get(name).equals(value)) {
final SharedPreferences.Editor editor = prefs.edit();
cookies.put(name, value);
editor.putString(name, value);
cache = null;
editor.commit();
}
}
static public synchronized void setCookie(final SharedPreferences prefs, final String headerField) {
final int semiIndex = headerField.indexOf(';');
final String cookie = semiIndex == -1 ? headerField : headerField.substring(0, semiIndex);
final int equalIndex = headerField.indexOf('=');
if (equalIndex > 0) {
setCookie(prefs, cookie.substring(0, equalIndex), cookie.substring(equalIndex + 1));
} else {
Log.w(cgSettings.tag, "CookieJar.setCookie: ignoring header " + headerField);
}
}
static public synchronized void setCookies(final SharedPreferences prefs, final URLConnection uc) {
final Map<String, List<String>> headers = uc.getHeaderFields();
for (final Map.Entry<String, List<String>> entry : headers.entrySet()) {
if ("set-cookie".equalsIgnoreCase(entry.getKey())) {
for (final String field : entry.getValue()) {
setCookie(prefs, field);
}
}
}
}
static public synchronized String getCookiesAsString(final SharedPreferences prefs) {
if (cache == null) {
loadCookiesIfNeeded(prefs);
final ArrayList<String> built = new ArrayList<String>();
for (final Map.Entry<String, String> entry : cookies.entrySet()) {
built.add(entry.getKey() + "=" + entry.getValue());
}
cache = StringUtils.join(built, ';');
}
return cache;
}
static public synchronized void deleteCookies(final SharedPreferences prefs) {
loadCookiesIfNeeded(prefs);
final SharedPreferences.Editor editor = prefs.edit();
for (final String key : cookies.keySet()) {
editor.remove("cookie_" + key);
}
editor.commit();
cookies.clear();
cache = "";
}
}
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