Java tutorial
/*************************************************************************** * Copyright (C) 2003-2008 eXo Platform SAS. * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU Affero General Public License * as published by the Free Software Foundation; either version 3 * of the License, or (at your option) any later version. * * This program 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 General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, see<http://www.gnu.org/licenses/>. ***************************************************************************/ package org.exoplatform.ks.ext.impl; import java.util.ArrayList; import java.util.List; import java.util.regex.Matcher; import java.util.regex.Pattern; import org.apache.commons.lang.StringUtils; /** * copied * @see org.exoplatform.forum.ForumTransformHTML */ public class ForumTransformHTML { public static String cleanHtmlCode(String sms, List<String> bbcs) { if (sms == null || sms.trim().length() <= 0) return ""; sms = StringUtils.replace(sms, "\n", " "); // clean bbcode List<String> bbcList = new ArrayList<String>(); bbcList.addAll(bbcs); for (String bbc : bbcs) { bbcList.add(bbc.toLowerCase()); } int lastIndex = 0; int tagIndex = 0; String start, end; for (String bbc : bbcList) { start = "[" + bbc; end = "[/" + bbc + "]"; lastIndex = 0; tagIndex = 0; while ((tagIndex = sms.indexOf(start, lastIndex)) != -1) { lastIndex = tagIndex + 1; try { int clsIndex = sms.indexOf(end, tagIndex); String content = sms.substring(tagIndex, clsIndex); String content_ = content.substring(content.indexOf("]") + 1); sms = StringUtils.replace(sms, content + end, content_); } catch (Exception e) { continue; } } } sms = StringUtils.replace(sms, "[U]", ""); sms = StringUtils.replace(sms, "[/U]", ""); sms = StringUtils.replace(sms, "[u]", ""); sms = StringUtils.replace(sms, "[/u]", ""); // Clean html code String scriptregex = "<(script|style)[^>]*>[^<]*</(script|style)>"; Pattern p1 = Pattern.compile(scriptregex, Pattern.CASE_INSENSITIVE); Matcher m1 = p1.matcher(sms); sms = m1.replaceAll(""); String tagregex = "<[^>]*>"; Pattern p2 = Pattern.compile(tagregex); Matcher m2 = p2.matcher(sms); sms = m2.replaceAll(""); String multiplenewlines = "(\\n{1,2})(\\s*\\n)+"; sms = sms.replaceAll(multiplenewlines, "$1"); return sms; } public static String getTitleInHTMLCode(String s, List<String> bbcs) { if (s == null || s.trim().length() == 0) return ""; if (s.length() > 500) s = s.substring(0, 500); s = s.replaceAll(" ", " ").replaceAll(" ", " ").replaceAll(" ", " ") .replaceAll("<br/>", " "); s = StringUtils.replace(s, " ", " "); s = cleanHtmlCode(s, bbcs); s = removeCharterStrange(s); return s; } public static String removeCharterStrange(String s) { if (s == null || s.length() <= 0) return ""; int i = 0; StringBuilder builder = new StringBuilder(); while (i < s.length()) { if (s.codePointAt(i) > 31) { builder.append(s.charAt(i)); } ++i; } return builder.toString(); } public static String enCodeHTML(String s) { StringBuffer buffer = new StringBuffer(); if (s != null) { s = s.replaceAll("(<p>((\\ )*)(\\s*)?</p>)|(<p>((\\ )*)?(\\s*)</p>)", "<br/>").trim(); s = s.replaceFirst("(<br/>)*", ""); s = s.replaceAll("(\\w|\\$)(>?,?\\.?\\*?\\!?\\&?\\%?\\]?\\)?\\}?)(<br/><br/>)*", "$1$2"); for (int j = 0; j < s.trim().length(); j++) { char c = s.charAt(j); if ((int) c == 60) { buffer.append("<"); } else if ((int) c == 62) { buffer.append(">"); } else if (c == '\'') { buffer.append("'"); } else { buffer.append(c); } } } return buffer.toString(); } public static String fixAddBBcodeAction(String b) { int tagIndex = 0; int lastIndex = 0; String start; String end; String text_ = ""; StringBuilder builder = new StringBuilder(); String[] tagBBcode = new String[] { "quote", "code", "QUOTE", "CODE" }; for (int i = 0; i < tagBBcode.length; i++) { start = "[" + tagBBcode[i]; end = "[/" + tagBBcode[i] + "]"; while ((tagIndex = b.indexOf(start, lastIndex)) != -1) { lastIndex = tagIndex + 1; try { int clsIndex = b.indexOf(end, tagIndex); String text = b.substring(tagIndex, clsIndex); if (text == null || text.trim().length() == 0) continue; text_ = text; builder = new StringBuilder(); if (text.indexOf('<' + "p") > text.indexOf('<' + "/p")) { text = StringUtils.replaceOnce(text, "</p>", ""); int t = text.lastIndexOf('<' + "p>"); builder.append(text.substring(0, t)); if (text.length() > (t + 3)) { builder.append(text.substring(t + 3)); } } text = builder.toString(); if (text != null && text.length() > 0) { b = StringUtils.replace(b, text_, text); text_ = text; } else text = text_; builder = new StringBuilder(); if (text.indexOf('<' + "span") > text.indexOf('<' + "/span")) { text = StringUtils.replaceOnce(text, "</span>", ""); int t = text.lastIndexOf('<' + "span"); builder.append(text.substring(0, t)); if (text.length() > (t + 6)) { builder.append(text.substring((t + 6))); } } text = builder.toString(); if (text != null && text.length() > 0) { b = StringUtils.replace(b, text_, text); } } catch (Exception e) { continue; } } } return b; } }