filters.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 832 行 · 第 1/3 页

<%
/**
 *	$RCSfile: filters.jsp,v $
 *	$Revision: 1.8 $
 *	$Date: 2002/08/09 22:46:01 $
 */
%>

<%@ page import="java.beans.*,
                 java.util.*,
                 com.jivesoftware.util.*,
                 com.jivesoftware.forum.*,
                 com.jivesoftware.forum.database.*,
                 com.jivesoftware.forum.util.*,
                 java.lang.reflect.Method"
    errorPage="error.jsp"
%>

<%@ include file="global.jsp" %>

<%! // Global variables/methods for this page
    private boolean isInstalledFilter(FilterManager filterManager,
            ForumMessageFilter filter)
    {
        try {
            int filterCount = filterManager.getFilterCount();
            if (filter == null) {
                return false;
            }
            if (filterCount < 1) {
                return false;
            }
            String filterClassname = filter.getClass().getName();
            for (int i=0; i<filterCount; i++) {
                ForumMessageFilter installedFilter = filterManager.getFilter(i);
                if (filterClassname.equals(installedFilter.getClass().getName())) {
                    return true;
                }
            }
        } catch (Exception e) {}
        return false;
    }

    private String getHTML(ForumMessageFilter filter, PropertyDescriptor descriptor)
    {
        // HTML of the customizer for this property
        StringBuffer html = new StringBuffer(50);
        // Get the name of the property (this becomes the name of the form element)
        String propName = descriptor.getName();
        // Get the current value of the property
        Object propValue = null;
        try {
            propValue = descriptor.getReadMethod().invoke(filter,null);
        }
        catch (Exception e) {e.printStackTrace();}

        // Get the classname of this property
        String className = descriptor.getPropertyType().getName();

        // HTML form elements for number values (rendered as small textfields)
        if ("int".equals(className)
            || "double".equals(className)
            || "long".equals(className))
        {
            html.append("<input type=\"text\" name=\"").append(propName).append("\" size=\"6\" maxlength=\"10\"");
            if (propValue != null) {
                html.append(" value=\"").append(propValue.toString()).append("\"");
            }
            html.append(">");
        }
        // HTML form elements for boolean values (rendered as Yes/No radio buttons)
        else if ("boolean".equals(className)) {
            boolean value = false;
            if ("true".equals(propValue.toString())) {
                value = true;
            }
            html.append("<input type=\"radio\" name=\"").append(propName).append("\" id=\"rb").append(propName).append("1\" ");
            html.append("value=\"true\"");
            html.append((value)?" checked":"");
            html.append("> <label for=\"rb").append(propName).append("1\">Yes</label> ");
            html.append("<input type=\"radio\" name=\"").append(propName).append("\" id=\"rb").append(propName).append("2\" ");
            html.append("value=\"false\"");
            html.append((!value)?" checked":"");
            html.append("> <label for=\"rb").append(propName).append("2\">No</label> ");
        }
        else if ("java.lang.String".equals(className)) {
            // HTML elements for a String or String[] (rendered as a single-line textarea)
            if (descriptor.getPropertyType().isArray()) {
                // Print out a customizer for a String array:
                String[] valArray = (String[])propValue;
                for (int i=0; i<valArray.length; i++) {
                    html.append("<textarea name=\"")
                        .append(propName).append(i)
                        .append("\" cols=\"25\" rows=\"1\">")
                        .append(escapeHTML(valArray[i]))
                        .append("</textarea>")
                        .append("<input type=\"submit\" name=\"deletePropEntry")
                        .append(i).append("\" value=\"Delete\">")
                        .append("<br>");
                }
                html.append("<br>");
                html.append("<textarea name=\"addNewProp").append(propName);
                html.append("\" ").append("cols=\"25\" rows=\"1\"></textarea>");
                html.append("<input type=\"hidden\" name=\"addNewPropName");
                html.append("\" value=\"").append(propName).append("\">");
                html.append("<input type=\"submit\" name=\"addNewProp\" ");
                html.append("value=\"Add\">");
                html.append("<input type=\"hidden\" name=\"deletePropertyName");
                html.append("\" value=\"").append(propName).append("\">");
            }
            // Else, it's just a POS (plain old String) :)
            else {
                /*
                if (propName.toLowerCase().equals("password")) {
                    html.append("<input type=\"password\"");
                }
                else {
                    html.append("<input type=\"text\"");
                }
                html.append(" name=\"").append(propName).append("\" size=\"30\" maxlength=\"150\"");
                if (propValue != null) {
                    html.append(" value=\"").append(escapeHTML(propValue.toString())).append("\"");
                }
                html.append(">");
                */
                if (propName.toLowerCase().equals("password")) {
                    html.append("<input type=\"password\"").append(" name=\"").append(propName);
                    html.append("\" size=\"30\" maxlength=\"150\"");
                    if (propValue != null) {
                        html.append(" value=\"").append(escapeHTML(propValue.toString())).append("\"");
                    }
                    html.append(">");
                }
                else {
                    html.append("<textarea name=\"").append(propName).append("\" ");
                    html.append(" cols=\"25\" rows=\"1\">");
                    if (propValue != null) {
                        html.append(escapeHTML(propValue.toString()));
                    }
                    html.append("</textarea>");
                }
            }
        }
        if (html.length() == 0) {
            html.append("&nbsp;");
        }
        return html.toString();
    }

    private Map getFilterPropertyValues(HttpServletRequest request,
            FilterManager filterManager, ForumMessageFilter filter)
    {
        // Map of filter property name/value pairs
        Map map = new HashMap();
        try {
            // Property descriptors
            PropertyDescriptor[] descriptors = BeanUtils.getPropertyDescriptors(filter.getClass());
            // Loop through the properties, get the value of the property as a
            // parameter from the HttpRequest object
            for (int i=0; i<descriptors.length; i++) {
                // Don't set any array properties:
                if (!descriptors[i].getPropertyType().isArray()) {
                    String propName = descriptors[i].getName();
                    String propValue = ParamUtils.getParameter(request,propName);
                    map.put(propName, propValue);
                }
            }
        } catch (Exception e) {}
        return map;
    }

    private String escapeHTML(String html) {
        html = StringUtils.replace(html, "\"", "&quot;");
        return StringUtils.escapeHTMLTags(html);
    }
%>

<%	// Get parameters
	long forumID = ParamUtils.getLongParameter(request,"forum",-1);
    String classname = ParamUtils.getParameter(request,"filters");
    boolean install = ParamUtils.getBooleanParameter(request,"install");
    boolean remove = ParamUtils.getBooleanParameter(request,"remove");
    int position = ParamUtils.getIntParameter(request,"pos",-1);
    boolean edit = ParamUtils.getBooleanParameter(request,"edit");
    boolean addFilter = ParamUtils.getBooleanParameter(request,"addFilter");
    String newClassname = ParamUtils.getParameter(request,"newClassname");
    boolean saveProperties = ParamUtils.getBooleanParameter(request,"saveProperties");
    int filterIndex = ParamUtils.getIntParameter(request,"filterIndex",-1);
    boolean changePosition = ParamUtils.getBooleanParameter(request,"changePos");
    boolean up = ParamUtils.getBooleanParameter(request,"up");
    boolean down = ParamUtils.getBooleanParameter(request,"down");
    String deletePropertyName = ParamUtils.getParameter(request,"deletePropertyName");
    boolean addNewProp = request.getParameter("addNewProp") != null;

    // Determine if we need to delete a String[] property entry
    boolean deletePropEntry = false;
    int deleteIndex = -1;
    for (Enumeration enum=request.getParameterNames(); enum.hasMoreElements(); )
    {
        String name = (String)enum.nextElement();
        if (name.startsWith("deletePropEntry")) {
            try {
                int pos = "deletePropEntry".length();
                deleteIndex = Integer.parseInt(
                        name.substring(pos, name.length())
                );
            }
            catch (Exception ignored) {}
            if (deleteIndex > -1) {
                deletePropEntry = true;
                break;
            }
        }
    }

    // Indicate if we're doing global filters
    boolean isGlobal = (forumID == -1L);

    // Security check
    if (isGlobal) {
        if (!isSystemAdmin) {
            throw new UnauthorizedException("You don't have admin privileges to perform this operation.");
        }
    }
    else {
        if (!isSystemAdmin && !isForumAdmin) {
            throw new UnauthorizedException("You don't have admin privileges to perform this operation.");
        }
    }

    // Load the forum
    Forum forum = null;
    if (forumID > 0L) {
        forum = forumFactory.getForum(forumID);
    }

    // Get the filter manager
    FilterManager filterManager = null;
    if (forum != null) {
        filterManager = forum.getFilterManager();
    }
    else {
        filterManager = forumFactory.getFilterManager();
    }

    // Check for the case that there is a global, uncacheable filter.
    boolean globalHasUncacheableFilters = false;
    if (!isGlobal) {
        // Get the global filter manager
        FilterManager globalFilterManager = forumFactory.getFilterManager();
        globalHasUncacheableFilters = globalFilterManager.hasUncacheableFilters();
    }

    // Add a new property for a String[] property type:
    if (addNewProp) {
        // Get the name of the filter for the new property:
        String newPropName = ParamUtils.getParameter(request,"addNewPropName");
        if (newPropName != null) {
            // Get the value of the new property:
            String newPropValue = ParamUtils.getParameter(request,"addNewProp" + newPropName);
            if (newPropValue != null) {
                // The filter we're working with:
                ForumMessageFilter filter = filterManager.getFilter(filterIndex);
                PropertyDescriptor[] descriptors = (Introspector.getBeanInfo(filter.getClass())).getPropertyDescriptors();
                PropertyDescriptor propDescriptor = null;
                // Look for the property specified
                for (int i=0; i<descriptors.length; i++) {
                    if (descriptors[i].getName().equals(newPropName)) {
                        propDescriptor = descriptors[i];
                        break;
                    }
                }
                if (propDescriptor != null) {
                    // Get both the read and write methods:
                    Method readMethod = propDescriptor.getReadMethod();
                    Method writeMethod = propDescriptor.getWriteMethod();
                    // Get the String[] via the read method:
                    String[] entries = (String[])readMethod.invoke(filter, null);