at.bitfire.davdroid.ui.setup.QueryServerDialogFragment.java Source code

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Here is the source code for at.bitfire.davdroid.ui.setup.QueryServerDialogFragment.java

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/*
 * Copyright  2013  2015 Ricki Hirner (bitfire web engineering).
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the GNU Public License v3.0
 * which accompanies this distribution, and is available at
 * http://www.gnu.org/licenses/gpl.html
 */
package at.bitfire.davdroid.ui.setup;

import android.app.DialogFragment;
import android.app.Fragment;
import android.app.LoaderManager.LoaderCallbacks;
import android.content.AsyncTaskLoader;
import android.content.Context;
import android.content.Loader;
import android.os.Bundle;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Toast;

import org.apache.commons.lang3.exception.ExceptionUtils;
import org.apache.http.HttpException;

import java.io.IOException;
import java.net.URI;
import java.net.URISyntaxException;
import java.security.cert.CertPathValidatorException;

import at.bitfire.davdroid.R;
import at.bitfire.davdroid.resource.DavResourceFinder;
import at.bitfire.davdroid.resource.LocalTaskList;
import at.bitfire.davdroid.resource.ServerInfo;
import at.bitfire.davdroid.webdav.DavException;
import lombok.Cleanup;

public class QueryServerDialogFragment extends DialogFragment implements LoaderCallbacks<ServerInfo> {
    private static final String TAG = "davdroid.QueryServer";
    public static final String EXTRA_BASE_URI = "base_uri", EXTRA_USER_NAME = "user_name",
            EXTRA_PASSWORD = "password", EXTRA_AUTH_PREEMPTIVE = "auth_preemptive";

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setStyle(DialogFragment.STYLE_NO_TITLE, android.R.style.Theme_Holo_Light_Dialog);
        setCancelable(false);

        Loader<ServerInfo> loader = getLoaderManager().initLoader(0, getArguments(), this);
        if (savedInstanceState == null) // http://code.google.com/p/android/issues/detail?id=14944
            loader.forceLoad();
    }

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
        return inflater.inflate(R.layout.setup_query_server, container, false);
    }

    @Override
    public Loader<ServerInfo> onCreateLoader(int id, Bundle args) {
        Log.i(TAG, "onCreateLoader");
        return new ServerInfoLoader(getActivity(), args);
    }

    @Override
    public void onLoadFinished(Loader<ServerInfo> loader, ServerInfo serverInfo) {
        if (serverInfo.getErrorMessage() != null)
            Toast.makeText(getActivity(), serverInfo.getErrorMessage(), Toast.LENGTH_LONG).show();
        else {
            ((AddAccountActivity) getActivity()).serverInfo = serverInfo;

            Fragment nextFragment;
            if (!serverInfo.getTodoLists().isEmpty() && !LocalTaskList.isAvailable(getActivity()))
                nextFragment = new InstallAppsFragment();
            else
                nextFragment = new SelectCollectionsFragment();

            getFragmentManager().beginTransaction().replace(R.id.right_pane, nextFragment).addToBackStack(null)
                    .commitAllowingStateLoss();
        }

        getDialog().dismiss();
    }

    @Override
    public void onLoaderReset(Loader<ServerInfo> arg0) {
    }

    static class ServerInfoLoader extends AsyncTaskLoader<ServerInfo> {
        private static final String TAG = "davdroid.ServerInfoLoader";
        final Bundle args;
        final Context context;

        public ServerInfoLoader(Context context, Bundle args) {
            super(context);
            this.context = context;
            this.args = args;
        }

        @Override
        public ServerInfo loadInBackground() {
            ServerInfo serverInfo = new ServerInfo(URI.create(args.getString(EXTRA_BASE_URI)),
                    args.getString(EXTRA_USER_NAME), args.getString(EXTRA_PASSWORD),
                    args.getBoolean(EXTRA_AUTH_PREEMPTIVE));

            try {
                @Cleanup
                DavResourceFinder finder = new DavResourceFinder(context);
                finder.findResources(serverInfo);
            } catch (URISyntaxException e) {
                serverInfo.setErrorMessage(getContext().getString(R.string.exception_uri_syntax, e.getMessage()));
            } catch (IOException e) {
                // general message
                serverInfo.setErrorMessage(getContext().getString(R.string.exception_io, e.getLocalizedMessage()));
                // overwrite by more specific message, if possible
                if (ExceptionUtils.indexOfType(e, CertPathValidatorException.class) != -1)
                    serverInfo.setErrorMessage(
                            getContext().getString(R.string.exception_cert_path_validation, e.getMessage()));
            } catch (HttpException e) {
                Log.e(TAG, "HTTP error while querying server info", e);
                serverInfo
                        .setErrorMessage(getContext().getString(R.string.exception_http, e.getLocalizedMessage()));
            } catch (DavException e) {
                Log.e(TAG, "DAV error while querying server info", e);
                serverInfo.setErrorMessage(
                        getContext().getString(R.string.exception_incapable_resource, e.getLocalizedMessage()));
            }

            return serverInfo;
        }

    }
}