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ViewCommon.java
Package: jforum-2.1.8-src.zip [view]
Upload User: gdxydsw
Upload Date: 2019-01-29
Package Size: 16721k
Code Size: 8k
Category:
Java Develop
Development Platform:
Java
- /*
- * Copyright (c) JForum Team
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms,
- * with or without modification, are permitted provided
- * that the following conditions are met:
- *
- * 1) Redistributions of source code must retain the above
- * copyright notice, this list of conditions and the
- * following disclaimer.
- * 2) Redistributions in binary form must reproduce the
- * above copyright notice, this list of conditions and
- * the following disclaimer in the documentation and/or
- * other materials provided with the distribution.
- * 3) Neither the name of "Rafael Steil" nor
- * the names of its contributors may be used to endorse
- * or promote products derived from this software without
- * specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT
- * HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
- * EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
- * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
- * THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES
- * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
- * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
- * OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
- * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
- * IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
- * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
- * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE
- *
- * This file creation date: 02/04/2004 - 20:31:35
- * The JForum Project
- * http://www.jforum.net
- */
- package net.jforum.view.forum.common;
- import java.io.UnsupportedEncodingException;
- import java.net.URI;
- import java.net.URLEncoder;
- import java.text.SimpleDateFormat;
- import java.util.Date;
- import org.apache.commons.lang.StringUtils;
- import net.jforum.JForumExecutionContext;
- import net.jforum.context.RequestContext;
- import net.jforum.entities.User;
- import net.jforum.exceptions.ForumException;
- import net.jforum.util.preferences.ConfigKeys;
- import net.jforum.util.preferences.SystemGlobals;
- import net.jforum.util.preferences.TemplateKeys;
- import freemarker.template.SimpleHash;
- /**
- * @author Rafael Steil
- * @version $Id: ViewCommon.java,v 1.32 2007/09/20 16:07:08 rafaelsteil Exp $
- */
- public final class ViewCommon
- {
- /**
- * Prepared the user context to use data pagination.
- * The following variables are set to the context:
- * <p>
- * <ul>
- * <li> <i>totalPages</i> - total number of pages
- * <li> <i>recordsPerPage</i> - how many records will be shown on each page
- * <li> <i>totalRecords</i> - number of records fount
- * <li> <i>thisPage</i> - the current page being shown
- * <li> <i>start</i> -
- * </ul>
- * </p>
- * @param start int
- * @param totalRecords int
- * @param recordsPerPage int
- */
- public static void contextToPagination(int start, int totalRecords, int recordsPerPage)
- {
- SimpleHash context = JForumExecutionContext.getTemplateContext();
- context.put("totalPages", new Double(Math.ceil((double) totalRecords / (double) recordsPerPage)));
- context.put("recordsPerPage", new Integer(recordsPerPage));
- context.put("totalRecords", new Integer(totalRecords));
- context.put("thisPage", new Double(Math.ceil((double) (start + 1) / (double) recordsPerPage)));
- context.put("start", new Integer(start));
- }
- /**
- * Prepares the template context to show the login page, using the current URI as return path.
- * @return TemplateKeys.USER_LOGIN
- */
- public static String contextToLogin()
- {
- RequestContext request = JForumExecutionContext.getRequest();
- String uri = request.getRequestURI();
- String query = request.getQueryString();
- String returnPath = query == null ? uri : uri + "?" + query;
- return contextToLogin(returnPath);
- }
- /**
- * Prepares the template context to show the login page, using "returnPath" as return path
- * @param returnPath the URI to use as return path
- * @return TemplateKeys.USER_LOGIN
- */
- public static String contextToLogin(String returnPath)
- {
- JForumExecutionContext.getTemplateContext().put("returnPath", returnPath);
- if (ConfigKeys.TYPE_SSO.equals(SystemGlobals.getValue(ConfigKeys.AUTHENTICATION_TYPE))) {
- String redirect = SystemGlobals.getValue(ConfigKeys.SSO_REDIRECT);
- if (!StringUtils.isEmpty(redirect)) {
- URI redirectUri = URI.create(redirect);
- if (!redirectUri.isAbsolute()) {
- throw new ForumException("SSO redirect URL should start with a scheme");
- }
- try {
- returnPath = URLEncoder.encode( ViewCommon.getForumLink() + returnPath, "UTF-8");
- }
- catch (UnsupportedEncodingException e) {}
- if (redirect.indexOf('?') == -1) {
- redirect += "?";
- }
- else {
- redirect += "&";
- }
- redirect += "returnUrl=" + returnPath;
- JForumExecutionContext.setRedirect(redirect);
- }
- }
- return TemplateKeys.USER_LOGIN;
- }
- /**
- * Returns the initial page to start fetching records from.
- *
- * @return The initial page number
- */
- public static int getStartPage()
- {
- String s = JForumExecutionContext.getRequest().getParameter("start");
- int start;
- if (StringUtils.isEmpty(s)) {
- start = 0;
- }
- else {
- start = Integer.parseInt(s);
- if (start < 0) {
- start = 0;
- }
- }
- return start;
- }
- /**
- * Gets the forum base link.
- * The returned link has a trailing slash
- * @return The forum link, with the trailing slash
- */
- public static String getForumLink()
- {
- String forumLink = SystemGlobals.getValue(ConfigKeys.FORUM_LINK);
- if (forumLink.charAt(forumLink.length() - 1) != '/') {
- forumLink += "/";
- }
- return forumLink;
- }
- public static String toUtf8String(String s)
- {
- StringBuffer sb = new StringBuffer();
- for (int i = 0; i < s.length(); i++) {
- char c = s.charAt(i);
- if ((c >= 0) && (c <= 255)) {
- sb.append(c);
- }
- else {
- byte[] b;
- try {
- b = Character.toString(c).getBytes("utf-8");
- }
- catch (Exception ex) {
- System.out.println(ex);
- b = new byte[0];
- }
- for (int j = 0; j < b.length; j++) {
- int k = b[j];
- if (k < 0) {
- k += 256;
- }
- sb.append('%').append(Integer.toHexString(k).toUpperCase());
- }
- }
- }
- return sb.toString();
- }
- /**
- * Formats a date using the pattern defined in the configuration file.
- * The key is the value of {@link net.jforum.util.preferences.ConfigKeys.DATE_TIME_FORMAT}
- * @param date the date to format
- * @return the string with the formated date
- */
- public static String formatDate(Date date)
- {
- SimpleDateFormat df = new SimpleDateFormat(SystemGlobals.getValue(ConfigKeys.DATE_TIME_FORMAT));
- return df.format(date);
- }
- /**
- * Escapes < by &lt; and > by &gt;
- * @param contents the string to parse
- * @return the new string
- */
- public static String espaceHtml(String contents)
- {
- StringBuffer sb = new StringBuffer(contents);
- replaceAll(sb, "<", "<");
- replaceAll(sb, ">", ">");
- return sb.toString();
- }
- /**
- * Replaces some string with another value
- * @param sb the StrinbBuilder with the contents to work on
- * @param what the string to be replaced
- * @param with the new value
- * @return the new string
- */
- public static String replaceAll(StringBuffer sb, String what, String with)
- {
- int pos = sb.indexOf(what);
- while (pos > -1) {
- sb.replace(pos, pos + what.length(), with);
- pos = sb.indexOf(what);
- }
- return sb.toString();
- }
- /**
- * @see #replaceAll(StringBuffer, String, String)
- * @param contents String
- * @param what String
- * @param with String
- * @return String
- */
- public static String replaceAll(String contents, String what, String with)
- {
- return replaceAll(new StringBuffer(contents), what, with);
- }
- /**
- * Parse the user's signature, to make it proper to visualization
- * @param u the user instance
- */
- public static void prepareUserSignature(User u)
- {
- if (u.getSignature() != null) {
- StringBuffer sb = new StringBuffer(u.getSignature());
- replaceAll(sb, "n", "<br />");
- u.setSignature(sb.toString());
- u.setSignature(PostCommon.prepareTextForDisplayExceptCodeTag(u.getSignature(), true, true));
- }
- }
- }