76 lines
2.7 KiB
Java
76 lines
2.7 KiB
Java
/* Copyright 2017 Thomas Schneider
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*
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* This file is a part of Mastalab
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*
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* This program is free software; you can redistribute it and/or modify it under the terms of the
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* GNU General Public License as published by the Free Software Foundation; either version 3 of the
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* License, or (at your option) any later version.
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*
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* Mastalab is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even
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* the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
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* Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along with Mastalab; if not,
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* see <http://www.gnu.org/licenses>. */
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package fr.gouv.etalab.mastodon.asynctasks;
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import android.os.AsyncTask;
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import org.jsoup.Jsoup;
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import org.jsoup.nodes.Document;
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import org.jsoup.select.Elements;
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import java.io.IOException;
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import fr.gouv.etalab.mastodon.interfaces.OnRetrieveMetaDataInterface;
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/**
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* Created by Thomas on 02/09/2017.
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* Retrieves metadata of a remote page
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*/
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public class RetrieveMetaDataAsyncTask extends AsyncTask<Void, Void, Void> {
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private OnRetrieveMetaDataInterface listener;
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private String url;
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private boolean error = false;
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private String image, title, description;
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public RetrieveMetaDataAsyncTask(String url, OnRetrieveMetaDataInterface onRetrieveRemoteAccountInterface){
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this.url = url;
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this.listener = onRetrieveRemoteAccountInterface;
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}
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@Override
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protected Void doInBackground(Void... params) {
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String userAgent = "Mozilla/5.0 (Windows NT 6.2; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/32.0.1667.0 Safari/537.36";
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try {
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Document document = Jsoup.connect(url).userAgent(userAgent).get();
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Elements metaOgTitle = document.select("meta[property=og:title]");
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if (metaOgTitle != null) {
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title = metaOgTitle.attr("content");
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} else {
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title = document.title();
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}
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Elements metaOgDescription = document.select("meta[property=og:description]");
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if (metaOgDescription != null) {
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description = metaOgDescription.attr("content");
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} else {
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description = "";
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}
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Elements metaOgImage = document.select("meta[property=og:image]");
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if (metaOgImage != null) {
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image = metaOgImage.attr("content");
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}
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} catch (IOException | IndexOutOfBoundsException e) {
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error = true;
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}
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return null;
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}
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@Override
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protected void onPostExecute(Void result) {
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listener.onRetrieveMetaData(error, image, title, description);
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}
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}
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