global.jsp

来自「Jive是基于JSP/JAVA技术构架的一个大型BBS论坛系统,这是Jive论坛」· JSP 代码 · 共 478 行 · 第 1/2 页

<%
/**
 *	$RCSfile: global.jsp,v $
 *	$Revision: 1.19 $
 *	$Date: 2002/08/09 22:39:46 $
 */
%>
<%@ page import="java.text.*,
                 java.util.*,
                 com.jivesoftware.util.*,
                 com.jivesoftware.forum.*,
                 com.jivesoftware.forum.util.*"
%>

<%! // global variables

    // default number of threads to show
    static final int DEFAULT_THREAD_RANGE = 15;
    // default number of messages to show
    static final int DEFAULT_MESSAGE_RANGE = 15;

    // possible values for a thread range
    static final int[] THREAD_RANGES = {15, 30, 50, 100};
    // possible values for message ranges
    static final int[] MESSAGE_RANGES = {5, 15, 30, 50, 100};

    // Date constants
    static final long MONTH = JiveGlobals.DAY * 30;
%>

<%  // Get the Jive locale:
    Locale locale = JiveGlobals.getLocale();

    // Check to see if Jive Forums is properly installed
    if (!"true".equals(JiveGlobals.getJiveProperty("setup"))) {
        throw new Exception(SkinUtils.getLocalizedString("skin.default.global.jive_not_setup",locale));
    }

    // Check to see if a Jive authorization token exists
    Authorization authToken = null;
    try {
        authToken = AuthorizationFactory.getAuthorization(request, response);
    }
    catch (UnauthorizedException ue) {
        authToken = AuthorizationFactory.getAnonymousAuthorization();
    }
    // Indicate if the user is a guest:
    boolean isGuest = authToken.isAnonymous();
    // Get the forum factory object.
    ForumFactory forumFactory = ForumFactory.getInstance(authToken);
    // Get the user of this page
    User pageUser = null;
    if (!isGuest) {
	    pageUser = forumFactory.getUserManager().getUser(authToken.getUserID());
        // Check if the user has a custom locale specified:
        if ("true".equals(JiveGlobals.getJiveProperty("skin.default.usersChooseLocale"))) {
            Locale userLocale = SkinUtils.localeCodeToLocale(pageUser.getProperty("jiveLocale"));
            if (userLocale != null) {
                locale = userLocale;
            }
        }
    }
    else {
        // See if the guest has a custom locale specified:
        if ("true".equals(JiveGlobals.getJiveProperty("skin.default.usersChooseLocale"))) {
            Cookie cookie = SkinUtils.getCookie(request,"jiveLocale");
            if (cookie != null) {
                Locale userLocale = SkinUtils.localeCodeToLocale(cookie.getValue());
                if (userLocale != null) {
                    locale = userLocale;
                }
            }
        }
    }

    // The last time the user visited this page
    Date lastVisited = new Date(SkinUtils.getLastVisited(request,response));

    // The number of messages a user wants to show per page
    int userMessageRange = getMessageRange(request,response,pageUser);
%>

<%! // global methods

    // Returns the URL path of the JiveServlet
    private static String getPathToJiveServlet(HttpServletRequest request) {
        String uri = request.getRequestURI();
        String serv = request.getServletPath();
        int pos = uri.indexOf(serv);
        String path = null;
        if (pos == -1) {
            pos = uri.lastIndexOf("/");
            if (pos > -1) {
                path = uri.substring(0, uri.lastIndexOf("/"));
            } else {
                path = "/";
            }
        } else {
            path = uri.substring(0, pos);
        }
        return path;
    }

    // Sets the URL we should redirect to in the session:
    private static void setRedirectURL(HttpServletRequest request) {
        StringBuffer fullURL = HttpUtils.getRequestURL(request);
        if (request.getQueryString() != null) {
            fullURL.append("?").append(request.getQueryString());
        }
        request.getSession().setAttribute("jive.redirect", fullURL.toString());
    }

    /**
     * Returns true if the page user is a moderator.
     */
    private boolean isModerator(ForumFactory factory, Forum forum) {
        boolean isModerator = false;
        if (factory.hasPermission(ForumPermissions.SYSTEM_ADMIN)
                || factory.hasPermission(ForumPermissions.FORUM_ADMIN)
                || factory.hasPermission(ForumPermissions.MODERATE_THREADS)
                || factory.hasPermission(ForumPermissions.MODERATE_MESSAGES))
        {
            isModerator = true;
        }
        else if (forum.hasPermission(ForumPermissions.SYSTEM_ADMIN)
                || forum.hasPermission(ForumPermissions.FORUM_ADMIN)
                || forum.hasPermission(ForumPermissions.MODERATE_THREADS)
                || forum.hasPermission(ForumPermissions.MODERATE_MESSAGES))
        {
            isModerator = true;
        }
        if (!isModerator) {
            // Check the category as a final check:
            ForumCategory cat = forum.getForumCategory();
            if (cat.hasPermission(ForumPermissions.SYSTEM_ADMIN)
                || cat.hasPermission(ForumPermissions.CATEGORY_ADMIN)
                || cat.hasPermission(ForumPermissions.FORUM_ADMIN)
                || cat.hasPermission(ForumPermissions.MODERATE_THREADS)
                || cat.hasPermission(ForumPermissions.MODERATE_MESSAGES))
            {
                isModerator = true;
            }
        }
        return isModerator;
    }

	// Returns the number of threads per forum listing to display for the user
	private static int getThreadRange(HttpServletRequest request,
			HttpServletResponse response, User user)
	{
		int threadRange = ParamUtils.getIntParameter(request,"thRange",-1);
		if (threadRange > -1) {
			return threadRange;
		} else {
			threadRange = DEFAULT_THREAD_RANGE;
			if (user != null) {
				try {
					threadRange = Integer.parseInt(user.getProperty("jiveThreadRange"));
				} catch (Exception e) {}
			}
			else {
				try {
                    threadRange = Integer.parseInt(SkinUtils.getCookie(request,"jiveThreadRange").getValue().trim());
				} catch (Exception e) {}
			}
			return threadRange;
		}
	}

	// Returns the number of messages to display.
	private static int getMessageRange(HttpServletRequest request,
			HttpServletResponse response, User user)
	{
		int messageRange = ParamUtils.getIntParameter(request,"msRange",-1);
		if (messageRange > -1) {
			return messageRange;
		} else {
			messageRange = DEFAULT_MESSAGE_RANGE;
			if (user != null) {
				try {
					messageRange = Integer.parseInt(user.getProperty("jiveMessageRange"));
				} catch (Exception e) {}
			}
			else {
				try {
                    messageRange = Integer.parseInt(SkinUtils.getCookie(request,"jiveMessageRange").getValue().trim());
				} catch (Exception e) {}
			}
			return messageRange;
		}
	}

	// Prints out a group of links to paginate through thread listings, ie:
	// "X page(s) [ 1 2 3 4 5 ... 30 | > ]"
	private static String getForumPaginator(long forumID, int topicCount,
			int numPages, int start, int range, Locale locale)
	{
        // If there is only one page, we won't show any pagination:
        if (numPages == 1) {
            return "";
        }

		StringBuffer buf = new StringBuffer();

		// "["
        buf.append(" ");
		buf.append(SkinUtils.getLocalizedString("skin.default.global.left_bracket",locale));
        buf.append(" ");

		// Print out a left arrow if necessary
		if (start > 0) {
			buf.append("<a href=\"forum.jsp?forum=");
			buf.append(forumID);
			buf.append("&start=");
			buf.append((start-range));
			buf.append("&thRange=");
			buf.append(range);
			buf.append("\" class=\"forum\" title=\"");
            buf.append(SkinUtils.getLocalizedString("skin.default.global.previous_page",locale));
            buf.append("\">");
            buf.append("<img src=\"images/prev.gif\" width=\"10\" height=\"10\" hspace=\"2\" border=\"0\">");
            buf.append("</a>");
            buf.append("<img src=\"images/blank.gif\" width=\"5\" height=\"1\" border=\"0\">");
		}

		// Calculate the starting point & end points (the range of pages to display)
		int currentPage = (start/range)+1;
		int lo = currentPage - 5;
		if (lo <= 0) {
			lo = 1;
		}
		int hi = currentPage + 5;

		// print out a link to the first page if we're beyond that page
		if (lo > 2) {
			buf.append("<a href=\"forum.jsp?forum=");
			buf.append(forumID);
			buf.append("&start=0\" class=\"forum\" title=\"");
            buf.append(SkinUtils.getLocalizedString("skin.default.thread.go_first_page",locale));