it.attocchi.utils.HtmlUtils.java Source code

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Here is the source code for it.attocchi.utils.HtmlUtils.java

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/*
Copyright (c) 2012,2013 Mirco Attocchi
       
This file is part of WebAppCommon.
    
WebAppCommon is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
    
WebAppCommon is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU Lesser General Public License for more details.
    
You should have received a copy of the GNU Lesser General Public License
along with WebAppCommon.  If not, see <http://www.gnu.org/licenses/>.
 */

package it.attocchi.utils;

import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.net.MalformedURLException;
import java.net.URL;

import org.apache.commons.lang3.StringUtils;
import org.apache.log4j.Logger;
import org.jsoup.Jsoup;

public class HtmlUtils {

    protected static Logger logger = Logger.getLogger(HtmlUtils.class.getName());

    /**
     * 
     * @param uri
     * @return
     * @throws Exception
     */
    // public static String readUrl(String uri) throws Exception {
    // StringBuilder sb = new StringBuilder();
    // URL url = new URL(uri);
    // BufferedReader in = new BufferedReader(new
    // InputStreamReader(url.openStream()));
    //
    // String inputLine;
    // while ((inputLine = in.readLine()) != null) {
    // sb.append(inputLine);
    // }
    // in.close();
    //
    // return sb.toString();
    // }

    public static String callUrl(String url) throws Exception {
        StringBuffer sb = new StringBuffer();

        // try {

        if (StringUtils.isNotEmpty(url)) {
            URL anUrl = new URL(url);
            BufferedReader in = new BufferedReader(new InputStreamReader(anUrl.openStream()));

            String inputLine;
            while ((inputLine = in.readLine()) != null) {
                // System.out.println(inputLine);
                sb.append(inputLine);
            }
            in.close();
        }

        // } catch (Exception ex) {
        // // logger.error("callProc", ex);
        // }

        return sb.toString();
    }

    /**
     * 
     * @param htmlText
     * @param convertHtmlNewLine
     *            if enabled convert <br>
     *            and
     *            <p>
     *            to /n new line
     * @return
     */
    public static String convertoHtmlToJavaString(String htmlText, boolean convertHtmlNewLine) {
        // String res = null;

        // res = htmlText;

        // if (convertHtmlNewLine) {
        // res = res.replaceAll("\\<BR\\>", "\n");
        // }
        // res = res.replaceAll("\\<.*?\\>", "");

        // return Jsoup.parse(htmlText).text();

        String res = null;

        final String tmpPlaceHolder = "#br2n#";

        String tmp = htmlText;

        if (convertHtmlNewLine) {
            tmp = tmp.replaceAll("(?i)<br[^>]*>", tmpPlaceHolder);
            tmp = tmp.replaceAll("(?i)<p[^>]*>", tmpPlaceHolder);
        }

        res = Jsoup.parse(tmp).text();

        if (convertHtmlNewLine)
            res = res.replaceAll(tmpPlaceHolder, "\n");

        return res;

        // return res;
    }

    // public static String HtmlToJavaStringPreserveEnter(String htmlText) {
    // String res = null;
    //
    // final String tmpPlaceHolder = "#br2n#";
    //
    // String tmp = htmlText;
    //
    // tmp = htmlText.replaceAll("(?i)<br[^>]*>", tmpPlaceHolder);
    // tmp = htmlText.replaceAll("(?i)<p[^>]*>", tmpPlaceHolder);
    //
    // res = Jsoup.parse(tmp).text();
    //
    // res = res.replaceAll(tmpPlaceHolder, "\n");
    //
    // return res;
    // }

    // public static String readUrl(String uri) throws Exception {
    // Document doc = Jsoup.connect(uri).get();
    // doc.get
    // }

    /**
     * Funzione che converte
     * 
     * @param aString
     * @return
     */
    public static String encodeForEscape(String aString) {
        String res = aString;

        // if (aString != null) {
        if (StringUtils.isNotEmpty(res)) {
            /*
             * Succede che poi in HTML ho tutte le entita HTML se uso escapeHtml
             */
            // res = aString;
            // res = StringEscapeUtils.escapeHtml(aString);

            /*
             * Per Ultimo questo altrimenti converte <BR> nelle entita' quello
             * fatto prima
             */
            // res = res.replaceAll("\n", "<br/>").replaceAll("\r", "");
            res = res.replaceAll("(\r\n|\n)", "<br />");
        }

        return res;
    }

    public static String encodeWebUrl(String aString) {
        String res = null;

        //      // res = aString.replaceAll("(?:https?|ftps?)://[\\w/%.-]+",
        //      // "<a href='$0'>$0</a>");
        //
        //      String regexp = "(?:https?|ftps?)://[\\w/%.-]+";
        //
        //      /**
        //       * http://www.regexguru.com/2008/11/detecting-urls-in-a-block-of-text/
        //       */
        //      // regexp = "\\b(?:(?:https?|ftp|file)://|www\\.|ftp\\.)[-A-Z0-9+&@#/%=~_|$?!:,.]*[A-Z0-9+&@#/%=~_|$]";
        //
        //      // if (aString != null) {
        //      if (StringUtils.isNotEmpty(aString)) {
        //         res = aString.replaceAll(regexp, "<a href='$0' class='LinkChiaveEsterna' target='_blank'>$0</a>");
        //      }
        //      // res = aString.replaceAll("(?:wwws?)://[\\w/%.-]+",
        //      // "<a href='http://$0'>$0</a>");

        // separate input by spaces ( URLs don't have spaces )
        String[] parts = aString.split("\\s+");
        res = aString;
        // Attempt to convert each item into an URL.
        for (String item : parts)
            try {
                URL url = new URL(item);
                // If possible then replace with anchor...
                res = res.replace(item,
                        "<a href='" + url + "' class='LinkChiaveEsterna' target='_blank'>" + url + "</a>");
            } catch (MalformedURLException e) {
                // If there was an URL that was not it!...
                // System.out.print(item + " ");
            }

        return res;
    }
}