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/*
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* Copyright © 2013 – 2015 Ricki Hirner (bitfire web engineering).
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* All rights reserved. This program and the accompanying materials
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* are made available under the terms of the GNU Public License v3.0
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* which accompanies this distribution, and is available at
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* http://www.gnu.org/licenses/gpl.html
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*/
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package at.bitfire.davdroid;
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import android.accounts.Account;
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import android.content.Context;
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import android.os.Build;
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import android.support.annotation.NonNull;
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import android.support.annotation.Nullable;
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import java.io.IOException;
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import java.text.SimpleDateFormat;
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import java.util.Date;
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import java.util.Locale;
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import java.util.concurrent.TimeUnit;
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import java.util.logging.Level;
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import java.util.logging.Logger;
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import at.bitfire.dav4android.BasicDigestAuthHandler;
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import okhttp3.Interceptor;
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import okhttp3.OkHttpClient;
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import okhttp3.Request;
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import okhttp3.Response;
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import okhttp3.logging.HttpLoggingInterceptor;
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public class HttpClient {
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private static final OkHttpClient client = new OkHttpClient();
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private static final UserAgentInterceptor userAgentInterceptor = new UserAgentInterceptor();
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private static final String userAgent;
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static {
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String date = new SimpleDateFormat("yyyy/MM/dd", Locale.US).format(new Date(BuildConfig.buildTime));
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userAgent = "DAVdroid/" + BuildConfig.VERSION_NAME + " (" + date + "; dav4android; okhttp3) Android/" + Build.VERSION.RELEASE;
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}
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private HttpClient() {
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}
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public static OkHttpClient create(@Nullable Context context, @NonNull Account account, @NonNull final Logger logger) throws InvalidAccountException {
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OkHttpClient.Builder builder = defaultBuilder(context, logger);
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// use account settings for authentication
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AccountSettings settings = new AccountSettings(context, account);
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builder = addAuthentication(builder, null, settings.username(), settings.password());
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return builder.build();
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}
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public static OkHttpClient create(@NonNull Context context, @NonNull Logger logger) {
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return defaultBuilder(context, logger).build();
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}
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public static OkHttpClient create(@NonNull Context context, @NonNull Account account) throws InvalidAccountException {
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return create(context, account, App.log);
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}
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public static OkHttpClient create(@Nullable Context context) {
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return create(context, App.log);
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}
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private static OkHttpClient.Builder defaultBuilder(@Nullable Context context, @NonNull final Logger logger) {
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OkHttpClient.Builder builder = client.newBuilder();
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// use MemorizingTrustManager to manage self-signed certificates
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if (context != null) {
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App app = (App)context.getApplicationContext();
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if (App.getSslSocketFactoryCompat() != null && app.getCertManager() != null)
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builder.sslSocketFactory(App.getSslSocketFactoryCompat(), app.getCertManager());
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if (App.getHostnameVerifier() != null)
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builder.hostnameVerifier(App.getHostnameVerifier());
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}
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// set timeouts
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builder.connectTimeout(30, TimeUnit.SECONDS);
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builder.writeTimeout(30, TimeUnit.SECONDS);
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builder.readTimeout(120, TimeUnit.SECONDS);
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// don't allow redirects, because it would break PROPFIND handling
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builder.followRedirects(false);
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// add User-Agent to every request
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builder.addNetworkInterceptor(userAgentInterceptor);
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// add cookie store for non-persistent cookies (some services like Horde use cookies for session tracking)
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builder.cookieJar(new MemoryCookieStore());
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// add network logging, if requested
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if (logger.isLoggable(Level.FINEST)) {
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HttpLoggingInterceptor loggingInterceptor = new HttpLoggingInterceptor(new HttpLoggingInterceptor.Logger() {
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@Override
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public void log(String message) {
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logger.finest(message);
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}
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});
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loggingInterceptor.setLevel(HttpLoggingInterceptor.Level.BODY);
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builder.addInterceptor(loggingInterceptor);
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}
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return builder;
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}
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private static OkHttpClient.Builder addAuthentication(@NonNull OkHttpClient.Builder builder, @Nullable String host, @NonNull String username, @NonNull String password) {
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BasicDigestAuthHandler authHandler = new BasicDigestAuthHandler(host, username, password);
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return builder
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.addNetworkInterceptor(authHandler)
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.authenticator(authHandler);
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}
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public static OkHttpClient addAuthentication(@NonNull OkHttpClient client, @NonNull String username, @NonNull String password) {
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OkHttpClient.Builder builder = client.newBuilder();
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addAuthentication(builder, null, username, password);
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return builder.build();
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}
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public static OkHttpClient addAuthentication(@NonNull OkHttpClient client, @NonNull String host, @NonNull String username, @NonNull String password) {
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OkHttpClient.Builder builder = client.newBuilder();
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addAuthentication(builder, host, username, password);
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return builder.build();
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}
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static class UserAgentInterceptor implements Interceptor {
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@Override
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public Response intercept(Chain chain) throws IOException {
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Locale locale = Locale.getDefault();
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Request request = chain.request().newBuilder()
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.header("User-Agent", userAgent)
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.header("Accept-Language", locale.getLanguage() + "-" + locale.getCountry() + ", " + locale.getLanguage() + ";q=0.7, *;q=0.5")
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.build();
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return chain.proceed(request);
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}
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}
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}
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