showauthenticationschemesdispatchaction.java

这是linux下ssl vpn的实现程序

        ActionMessages mesgs = new ActionMessages();
        if (defaultScheme == id) {
            List allSchemes = CoreServlet.getServlet().getSystemDatabase().getAuthenticationSchemeSequences();
            // Look for the next enabled scheme
            int nextEnabled = -1;
            for (Iterator i = allSchemes.iterator(); i.hasNext();) {
                AuthenticationSchemeSequence oseq = (AuthenticationSchemeSequence) i.next();
                if (!oseq.equals(seq) && oseq.getEnabled()) {
                    nextEnabled = oseq.getResourceId();
                }
            }
            if (nextEnabled == -1) {
                mesgs.add(Globals.ERROR_KEY, new ActionMessage("authenticationSchemes.error.mustHaveOneEnabledScheme"));
                saveErrors(request, mesgs);
                return list(mapping, form, request, response);
            } else {
                PropertyUtil.getPropertyUtil().setProperty(0, null, "authenticationScheme.default", String.valueOf(nextEnabled),
                                getSessionInfo());
            }
        }
        doRemove(mapping, form, request, response);
        PolicyUtil.detachResourceFromPolicyList(seq, getSessionInfo());
        CoreServlet.getServlet().getSystemDatabase().deleteAuthenticationSchemeSequence(id);
        mesgs.add(Globals.MESSAGE_KEY, new ActionMessage("authenticationSchemes.message.schemeDeleted", seq.getResourceName()));
        saveMessages(request, mesgs);
        return mapping.findForward("refresh");
    }

    /**
     * Disable the selected authentication scheme.
     * 
     * @param mapping mapping
     * @param form form
     * @param request request
     * @param response response
     * @return forward
     * @throws Exception on any error
     */
    public ActionForward disable(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response)
                    throws Exception {
        PolicyUtil.checkPermission(PolicyConstants.AUTHENTICATION_SCHEMES_RESOURCE_TYPE, PolicyConstants.PERM_EDIT_AND_ASSIGN,
                        request);
        AuthenticationSchemesForm schemesForm = (AuthenticationSchemesForm) form;
        int id = schemesForm.getSelectedResource();
        int defaultScheme = CoreServlet.getServlet().getPropertyDatabase().getPropertyInt(0, null, "authenticationScheme.default");
        AuthenticationSchemeSequence seq = CoreServlet.getServlet().getSystemDatabase().getAuthenticationSchemeSequence(id);
        if (seq == null) {
            throw new Exception("No scheme with Id of " + id + ".");
        }
        ActionMessages mesgs = new ActionMessages();
        List authSchemes = CoreServlet.getServlet().getSystemDatabase().getAuthenticationSchemeSequences();
        int enabled = 0;
        for (Iterator i = authSchemes.iterator(); i.hasNext();) {
            AuthenticationSchemeSequence oseq = (AuthenticationSchemeSequence) i.next();
            if (oseq.getResourceId() == id && !oseq.getEnabled()) {
                throw new Exception("Scheme already disabled.");
            }
            if (oseq.getEnabled()) {
                enabled++;
            }
        }
        if (enabled == 1) {
            mesgs.add(Globals.ERROR_KEY, new ActionMessage("authenticationSchemes.error.cantDisableLastEnabledScheme"));
            saveErrors(request, mesgs);
            return list(mapping, form, request, response);
        }
        if (defaultScheme == id) {
            mesgs.add(Globals.ERROR_KEY, new ActionMessage("authenticationSchemes.error.cantDisableDefaultScheme"));
            saveErrors(request, mesgs);
            return list(mapping, form, request, response);
        }
        seq.setEnabled(false);
        CoreServlet.getServlet().getSystemDatabase().updateAuthenticationSchemeSequence(seq);
        mesgs.add(Globals.MESSAGE_KEY, new ActionMessage("authenticationSchemes.message.schemeDisabled", seq.getResourceName()));
        saveMessages(request, mesgs);
        return list(mapping, form, request, response);
    }

    /**
     * Enable the selected authentication scheme.
     * 
     * @param mapping mapping
     * @param form form
     * @param request request
     * @param response response
     * @return forward
     * @throws Exception on any error
     */
    public ActionForward enable(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response)
                    throws Exception {
        PolicyUtil.checkPermission(PolicyConstants.AUTHENTICATION_SCHEMES_RESOURCE_TYPE, PolicyConstants.PERM_EDIT_AND_ASSIGN,
                        request);
        AuthenticationSchemesForm schemesForm = (AuthenticationSchemesForm) form;
        int id = schemesForm.getSelectedResource();
        AuthenticationSchemeSequence seq = CoreServlet.getServlet().getSystemDatabase().getAuthenticationSchemeSequence(id);
        if (seq == null) {
            throw new Exception("No scheme with Id of " + id + ".");
        }
        if (seq.getEnabled()) {
            throw new Exception("Alreadty enabled.");
        }
        ActionMessages mesgs = new ActionMessages();
        seq.setEnabled(true);
        CoreServlet.getServlet().getSystemDatabase().updateAuthenticationSchemeSequence(seq);
        mesgs.add(Globals.MESSAGE_KEY, new ActionMessage("authenticationSchemes.message.schemeEnabled", seq.getResourceName()));
        saveMessages(request, mesgs);
        return list(mapping, form, request, response);
    }

    /**
     * Edit the selected authentication scheme.
     * 
     * @param mapping mapping
     * @param form form
     * @param request request
     * @param response response
     * @return forward
     * @throws Exception on any error
     */
    public ActionForward edit(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response)
                    throws Exception {
        PolicyUtil.checkPermissions(PolicyConstants.AUTHENTICATION_SCHEMES_RESOURCE_TYPE, new Permission[] {
                        PolicyConstants.PERM_EDIT_AND_ASSIGN, PolicyConstants.PERM_CREATE_EDIT_AND_ASSIGN,
                        PolicyConstants.PERM_ASSIGN }, request);
        AuthenticationSchemesForm schemesForm = (AuthenticationSchemesForm) form;
        int id = schemesForm.getSelectedResource();
        AuthenticationSchemeSequence seq = CoreServlet.getServlet().getSystemDatabase().getAuthenticationSchemeSequence(id);
        if (seq == null) {
            throw new Exception("No scheme with Id of " + id + ".");
        }
        if (seq.isSystemScheme()) {
            throw new Exception("Cannot remove system schemes.");
        }
        request.getSession().setAttribute(
                        Constants.EDITING_RESOURCE,
                        CoreServlet.getServlet().getSystemDatabase().getAuthenticationSchemeSequence(
                                        ((AuthenticationSchemesForm) form).getSelectedResource()));
        return mapping.findForward("edit");
    }

    /**
     * List the authentication schemes configured.
     * 
     * @param mapping mapping
     * @param form form
     * @param request request
     * @param response response
     * @return forward
     * @throws Exception on any error
     */
    public ActionForward list(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response)
                    throws Exception {
        AuthenticationSchemesForm schemesForm = (AuthenticationSchemesForm) form;
        List schemes = CoreServlet.getServlet().getSystemDatabase().getAuthenticationSchemeSequences();
        schemesForm.initialize(request.getSession(), schemes);
        Util.noCache(response);
        return mapping.findForward("display");
    }

    /*
     * (non-Javadoc)
     * 
     * @see com.sslexplorer.core.actions.CoreAction#getNavigationContext(org.apache.struts.action.ActionMapping,
     *      org.apache.struts.action.ActionForm,
     *      javax.servlet.http.HttpServletRequest,
     *      javax.servlet.http.HttpServletResponse)
     */
    public int getNavigationContext(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response) {
        return SessionInfo.MANAGEMENT_CONSOLE_CONTEXT;
    }
}