142 lines
4.5 KiB
Java
142 lines
4.5 KiB
Java
package fr.gouv.etalab.mastodon.helper;
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import android.content.ClipData;
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import android.content.ClipboardManager;
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import android.content.Context;
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import android.os.AsyncTask;
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import android.text.TextUtils;
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import android.util.Log;
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import android.util.Patterns;
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import android.webkit.URLUtil;
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import org.jsoup.Connection;
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import org.jsoup.Jsoup;
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import org.jsoup.helper.HttpConnection;
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import org.jsoup.nodes.Document;
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import org.jsoup.select.Elements;
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import java.util.ArrayList;
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import java.util.List;
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import java.util.regex.Matcher;
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// TODO: Borrowed wholesale from Tusky
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/**
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* Inspect and get the information from a URL.
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*/
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public class ParserUtils {
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public final static String carriageReturn = System.getProperty("line.separator");
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final private static String QUOTE = "\"";
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private static final String TAG = "ParserUtils";
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private ParserListener parserListener;
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public ParserUtils(ParserListener parserListener) {
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this.parserListener = parserListener;
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}
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// TootActivity : EditText inside the onTextChanged
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public String getPastedURLText(Context context) {
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ClipboardManager clipboard = (ClipboardManager) context.getSystemService(Context.CLIPBOARD_SERVICE);
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String pasteData;
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if (clipboard.hasPrimaryClip()) {
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// get what is in the clipboard
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ClipData.Item item = clipboard.getPrimaryClip().getItemAt(0);
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pasteData = item.getText().toString();
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// If we share with an app, it's not only an url
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List<String> strings = extractUrl(pasteData);
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if (strings.size() > 0) {
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String url = strings.get(0); // we assume that the first url is the good one
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if (URLUtil.isValidUrl(url)) {
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new ThreadHeaderInfo().execute(url);
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}
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}
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}
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return null;
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}
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public void putInClipboardManager(Context context, String string) {
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ClipboardManager clipboard = (ClipboardManager) context.getSystemService(Context.CLIPBOARD_SERVICE);
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ClipData clip = ClipData.newPlainText("", string);
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clipboard.setPrimaryClip(clip);
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}
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/** parse the HTML page */
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private HeaderInfo parsePageHeaderInfo(String urlStr) throws Exception {
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Connection con = Jsoup.connect(urlStr);
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HeaderInfo headerInfo = new HeaderInfo();
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con.userAgent(HttpConnection.DEFAULT_UA);
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Document doc = con.get();
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// get info
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String text;
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Elements metaOgTitle = doc.select("meta[property=og:title]");
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if (metaOgTitle != null) {
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text = metaOgTitle.attr("content");
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} else {
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text = doc.title();
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}
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String imageUrl = null;
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Elements metaOgImage = doc.select("meta[property=og:image]");
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if (metaOgImage != null) {
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imageUrl = metaOgImage.attr("content");
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}
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// set info
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headerInfo.baseUrl = urlStr;
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if (!TextUtils.isEmpty(text)) {
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headerInfo.title = QUOTE + text + QUOTE;
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}
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if (!TextUtils.isEmpty(imageUrl)) {
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headerInfo.image = (imageUrl);
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}
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return headerInfo;
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}
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public interface ParserListener {
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void onReceiveHeaderInfo(HeaderInfo headerInfo);
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void onErrorHeaderInfo();
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}
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public class HeaderInfo {
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public String baseUrl;
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public String title;
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public String image;
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}
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private class ThreadHeaderInfo extends AsyncTask<String, Void, HeaderInfo> {
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protected HeaderInfo doInBackground(String... urls) {
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try {
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String url = urls[0];
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return parsePageHeaderInfo(url);
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} catch (Exception e) {
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Log.e(TAG, "ThreadHeaderInfo#parsePageHeaderInfo() failed." + e.getMessage());
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return null;
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}
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}
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protected void onPostExecute(HeaderInfo headerInfo) {
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if (headerInfo != null) {
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Log.i(TAG, "ThreadHeaderInfo#parsePageHeaderInfo() success." + headerInfo.title + " " + headerInfo.image);
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parserListener.onReceiveHeaderInfo(headerInfo);
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} else {
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parserListener.onErrorHeaderInfo();
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}
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}
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}
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static List<String> extractUrl(String text) {
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List<String> links = new ArrayList<>();
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Matcher m = Patterns.WEB_URL.matcher(text);
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while (m.find()) {
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String url = m.group();
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links.add(url);
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}
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return links;
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}
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}
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