def get_display(my):

        top = DivWdg()

        hash = my.kwargs.get("hash")
        Container.put("url_hash", hash)

        security = Environment.get_security()
        is_admin = security.check_access("builtin", "view_site_admin", "allow")
        if hash == "/admin" and not is_admin:
            hash = "/index"

        if not hash:
            # NOTE: this really doesn't get call anymore because an empty
            # hash gets remapped to "/index"
            widget = my.get_default_wdg()
            top.add(widget)

        # This would provide a way to get the default index widget.
        #elif hash == "/projects":
        #    widget = my.get_default_wdg()
        #    from tactic_sites.default.modules import IndexWdg
        #    top.add( IndexWdg() )
        else:
            from tactic.ui.panel import HashPanelWdg

            project_code = Project.get_project_code()
            if project_code == 'admin' and hash == '/index':
                widget = my.get_default_wdg()

            else:
                print "HASH: ", hash
                print "project: ", project_code
                from pyasm.security import Site
                print "site: ", Site.get_site()
                widget = HashPanelWdg.get_widget_from_hash(hash, return_none=True)

            if not widget:
                if hash == "/index":
                    widget = my.get_default_wdg()
                elif hash == '/admin':
                    widget = my.get_default_wdg()
                else:
                    widget = HashPanelWdg.get_widget_from_hash("/index", return_none=True)


            top.add(widget)


        return top

    def get_content(my, request_type):
        web = WebContainer.get_web()

        # NOTE: is this needed anymore?
        if request_type in ["upload", "dynamic_file"]:
            print "DEPRECATED: dynamic file in app_server.py"
            widget = Widget()
            page = my.get_page_widget()
            widget.add(page)
            return widget


        # find hash of url
        my.custom_url = None
        if my.hash:
            hash = "/".join(my.hash)
            hash = "/%s" % hash
            from tactic.ui.panel import HashPanelWdg
            my.custom_url = HashPanelWdg.get_url_from_hash(hash)
            if my.custom_url:
                content_type = my.custom_url.get_value("content_type", no_exception=True)
            # TODO: we may want to handle this differently for content types
            # other that text/html




        return my.get_application_wdg()

    def get_display(my):
        div = DivWdg()
        class_path = Common.get_full_class_name(my)

        from tactic.ui.panel import HashPanelWdg
        try:
            widget = HashPanelWdg.get_widget_from_hash("/index", return_none=True)
            div.add(widget)
        except:
            widget = None


        if not widget:
            class_path = class_path.replace("IndexWdg", "IndexWdg2")
            kwargs = {}
            div.add_behavior( {
                'type': 'load',
                'class_path': class_path,
                'kwargs': kwargs,
                'cbjs_action': '''
                spt.dom.load_js(["popup.js"], function() {
                    spt.panel.load(bvr.src_el, bvr.class_path, bvr.kwargs);
                });
                '''
            } )
        return div

    def get_display(self):

        top = DivWdg()

        hash = self.kwargs.get("hash")
        pathname = self.kwargs.get("pathname")

        Container.put("url_hash", hash)

        security = Environment.get_security()
        is_admin = security.check_access("builtin", "view_site_admin", "allow")
        if hash == "/admin" and not is_admin:
            hash = "/index"

        if not hash:
            widget = self.get_default_wdg()
            top.add(widget)

        # This would provide a way to get the default index widget.
        #elif hash == "/projects":
        #    widget = self.get_default_wdg()
        #    from tactic_sites.default.modules import IndexWdg
        #    top.add( IndexWdg() )
        else:
            from tactic.ui.panel import HashPanelWdg

            project_code = Project.get_project_code()
            if project_code == 'admin' and hash == '/index':
                widget = self.get_default_wdg()

            else:
                from pyasm.security import Site
                widget = HashPanelWdg.get_widget_from_hash(hash, return_none=True)

            if not widget:
                if hash == "/index":
                    widget = self.get_default_wdg()
                elif hash == '/admin':
                    widget = self.get_default_wdg()
                else:
                    widget = HashPanelWdg.get_widget_from_hash("/index", return_none=True)


            top.add(widget)


        return top

    def get_display(self):

        top = DivWdg()
        top.set_id('top_of_application')

        top.add_style("overflow: hidden")

        from tactic.ui.panel import HashPanelWdg 
        splash_div = HashPanelWdg.get_widget_from_hash("/splash", return_none=True)
        if not splash_div:

            splash_div = DivWdg()
            splash_div.add_style('text-align: center')
            splash_div.add('<img src="/context/icons/common/indicator_snake.gif" border="0"/>')
            splash_div.add("&nbsp; &nbsp;")
            project = Project.get()
            title = project.get_value("title")
            if not title:
                title = "TACTIC"

            splash_div.add('''Loading "%s" ....'''% title)
            splash_div.add_style("font-size: 1.5em")
            splash_div.add_style("margin: 200 0 500 0")


        splash_div.add_behavior( {
            'type': 'load',
            'hash': self.hash,
            'cbjs_action': '''
            if (bvr.hash) {
                spt.hash.hash = "/" + bvr.hash;
            }
            else {
                spt.hash.hash = "/index";
            }
            spt.hash.set_index_hash("link/_startup");
            '''
        } )


        top.add(splash_div)

        return top

    def get_display(my):

        top = DivWdg()

        hash = my.kwargs.get("hash")
        Container.put("url_hash", hash)


        if not hash:
            # NOTE: this really doesn't get call anymore because an empty
            # hash gets remapped to "/index"
            widget = my.get_default_wdg()
            top.add(widget)

        # This would provide a way to get the default index widget.
        #elif hash == "/projects":
        #    widget = my.get_default_wdg()
        #    from tactic_sites.default.modules import IndexWdg
        #    top.add( IndexWdg() )
        else:
            from tactic.ui.panel import HashPanelWdg

            project_code = Project.get_project_code()
            if project_code == 'admin' and hash == '/index':
                widget = my.get_default_wdg()
            else:
                widget = HashPanelWdg.get_widget_from_hash(hash, return_none=True)

            if hash == "/index" and not widget:
                widget = my.get_default_wdg()
            elif hash == '/admin' and not widget:
                widget = my.get_default_wdg()


            top.add(widget)


        return top

    def init(my):

        link = my.kwargs.get('link')
        hash = my.kwargs.get('hash')
        
        my.widget = None

        if link:
            from tactic.ui.panel import SideBarBookmarkMenuWdg
            personal = False
            if '.' in link:
                personal = True

            config = SideBarBookmarkMenuWdg.get_config("SideBarWdg", link, personal=personal)
            options = config.get_display_options(link)

            # this is vital for view saving
            element_name = link
            attr_dict = config.get_element_attributes(link)
            title = attr_dict.get('title')

            hash = "/tab/%s" % link

           
            config = '''
            <config>
            <application>
            <element name="left_nav">
              <display class="tactic.ui.panel.SideBarPanelWdg">
              </display>
            </element>

            <element name="main_body">
              <display class="tactic.ui.panel.HashPanelWdg">
                <hash>%s</hash>
                <element_name>%s</element_name>
                <title>%s</title>
              </display>
              <web/>
            </element>
            </application>
            </config>
            ''' % (hash, element_name, title)


        elif hash:
            from tactic.ui.panel import HashPanelWdg
            my.widget = HashPanelWdg.get_widget_from_hash(hash, force_no_index=True)
            config = None
 
        else:
            security = Environment.get_security()
            start_link = security.get_start_link()
            if start_link:
                my.kwargs['link'] = start_link
                return my.init()



            # search for a defined welcome view
            search = Search("config/widget_config")
            search.add_filter("category", "top_layout")
            search.add_filter("view", "welcome")
            config_sobj = search.get_sobject()
            if config_sobj:
                config = config_sobj.get_value("config")

            else:
                config = WidgetSettings.get_value_by_key("top_layout")


        if not config:
            config = my.get_default_config()


        my.config_xml = Xml()
        my.config_xml.read_string(config)

                try:
                    if current_project != "default":
                        project = Project.get_by_code(current_project)
                        assert project
                except Exception, e:
                    web_wdg = None
                else:

                    # custom login widget
                    if not current_project or current_project == "default":
                        current_project = Project.get_default_project()
                    if current_project and current_project != "default":
                        Project.set_project(current_project)

                        try:
                            web_wdg = HashPanelWdg.get_widget_from_hash("/login", return_none=True)
                        except Exception, e:
                            print "WARNING: ", e
                            raise
                            from pyasm.widget import ExceptionMinimalWdg
                            web_wdg = ExceptionMinimalWdg(e)
                            web_wdg.add_style("margin: 50px auto")


                        if web_wdg:
                            web_wdg = web_wdg.get_buffer_display()
                            top.add(web_wdg)
                    else:
                        web_wdg = None

                # display default web login

#.........这里部分代码省略.........
                #keys = [key]
                keys = [key, key2]
                access = security.check_access("project", keys, "allow", default=default)
        else:
            # you always have access to the default project
            access = True


        access = True
        if not access:
            if login_name == "guest":
                from pyasm.widget import WebLoginWdg

                msg = web.get_form_value(WebLoginWdg.LOGIN_MSG)
                if not msg:
                    msg = "User [%s] is not allowed to see this project [%s]" % (login_name, project)
                    web.set_form_value(WebLoginWdg.LOGIN_MSG, msg)
                return my.handle_not_logged_in(allow_change_admin=False)

            else:
                from pyasm.widget import WebLicenseWdg, BottomWdg, Error403Wdg
                widget = Widget()
                top = my.get_top_wdg()
                widget.add( top )
                widget.add( Error403Wdg() )
                widget.add( BottomWdg() )
                widget.get_display()
     
                return


        if login_name == 'guest' and guest_mode == "full":
            # some extra security for guest users
            guest_url_allow = Config.get_value("security", "guest_url_allow")
            if guest_url_allow:
                items = guest_url_allow.split("|")
                allowed = False
                if my.hash:
                    url = my.hash[0]
                else:
                    url = "index"
                for item in items:
                    item = item.strip("/")
                    if item == url:
                        allowed = True
                        break
                if not allowed:
                    return my.handle_not_logged_in()



        # some extra precautions in guest mode
        if login_name == 'guest' and guest_mode != "full":
            # show a restricted guest mode
            from pyasm.widget import WebLoginWdg, BottomWdg
            from tactic.ui.app import TitleTopWdg

            from pyasm.biz import Project
            from tactic.ui.panel import HashPanelWdg
            web = WebContainer.get_web()

            widget = Widget()
            top = TitleTopWdg()
            widget.add(top)
            body = top.get_body()
            body.add_gradient("background", "background", 5, -20)
            body.add_color("color", "color")

            # get the project from the url because we are still 
            # in the admin project at this stage
            current_project = web.get_context_name()
            try:
                if current_project != "default":
                    project = Project.get_by_code(current_project)
                    assert project
            except Exception, e:
                web_wdg = None
            else:
                if not current_project or current_project == "default":
                    current_project = Config.get_value("install", "default_project")
                if current_project and current_project != "default":
                    Project.set_project(current_project)

                    web_wdg = HashPanelWdg.get_widget_from_hash("/guest", return_none=True)
                    if web_wdg:
                        web_wdg = web_wdg.get_buffer_display()
                        top.add(web_wdg)
                else:
                    web_wdg = None

            if not web_wdg:
                msg = "No widget for Guest defined"
                web.set_form_value(WebLoginWdg.LOGIN_MSG, msg)
                top.add(WebLoginWdg() )


            # create a web app and run it through the pipeline
            web_app = WebApp()
            web_app.get_display(widget)
            return

    def get_display(my):

        # Custom URLs have the ability to send out different content types
        url = my.kwargs.get("url")


        web = WebContainer.get_web()

        #content_type = my.kwargs.get("content_type")
        #print "content_type: ", content_type

        hash = my.kwargs.get("hash")
        ticket = web.get_form_value("ticket")
        method = web.get_request_method()
        headers = web.get_request_headers()
        accept = headers.get("Accept")


        expression = url.get_value("url")
        kwargs = Common.extract_dict(hash, expression)

        # Does the URL listen to specific Accept values?
        # or does it enforce a return content type ... and how does one
        # know what exactly is supported?  Accept is kind of complicated.
        # Easier to put in as a paramenter ... but should accept both

        # get the widget designated for hash
        kwargs['Accept'] = accept
        kwargs['Method'] = method

        from tactic.ui.panel import HashPanelWdg 
        hash_widget = HashPanelWdg.get_widget_from_hash(hash, kwargs=kwargs)



        # Really, the hash widget should determine what is returned, but
        # should take the Accept into account.  It is not up to this
        # class to determine what is or isn't implemented, not is it the
        # responsibility of this class to convert the data.  So, it
        # returns whatever is given.


        widget = Widget()

        # We need to to get the content-type from the widget ... however
        # it decides to make use of the "Accept" type
        #widget.get_content_type()


        #
        # Example implementation of custom script, run by hash_widget
        #
        if accept == "application/json":
            value = hash_widget.get_display()
            value = jsondumps(value)
            web.set_content_type(accept)

        elif accept == "application/xml":
            from pyasm.common import Xml
            value = hash_widget.get_display()
            if isinstance(value, basestring):
                xml = Xml(value)
                value = xml.to_string()
            elif isinstance(value, Xml):
                value = value.to_string()
            web.set_content_type(accept)


        elif accept == "plain/text":
            from pyasm.common import Xml
            value = hash_widget.get_display()
            value = str(value)

            web.set_content_type(accept)

        else:
            # return text/html
            value = DivWdg()
            if isinstance(hash_widget, basestring):
                value.add(hash_widget)
            else:
                value.add(hash_widget.get_display())
            web.set_content_type("text/html")


        widget.add(value)
        return widget

                            raise


                    # find the guest views
                    # FIXME: this doesn't work!!!  It resets the home page
                    search = Search("config/url")
                    urls = search.get_sobjects()
                    open_hashes = [x.get("url").lstrip("/").split("/")[0] for x in urls]
                    print "open_hashes: ", open_hashes
                    link = "/%s" % "/".join(my.hash)


                    # guest views
                    open_hashes = ['register', 'accept', 'thank_you', 'sign_in','pricing', 'change_password']
                    if len(my.hash) >= 1 and my.hash[0] in open_hashes:
                        web_wdg = HashPanelWdg.get_widget_from_hash(link, return_none=True)
                    else:
                        web_wdg = None

                    if not web_wdg:
                        web_wdg = HashPanelWdg.get_widget_from_hash("/guest", return_none=True, kwargs={"hash": link})
                    if web_wdg:
                        if not isinstance(web_wdg, basestring):
                            web_wdg = web_wdg.get_buffer_display()
                        top.add(web_wdg)
                else:
                    web_wdg = None

            if not web_wdg:
                msg = "No default page defined for guest user. Please set up /guest in Custom URL."
                web.set_form_value(WebLoginWdg.LOGIN_MSG, msg)

    def get_error_wdg(self):

        kwargs = {
        }
        from tactic.ui.panel import HashPanelWdg 
        widget = HashPanelWdg.get_widget_from_hash("/error404", return_none=True, kwargs=kwargs)
        if widget:
            return widget

        div = DivWdg()
        error_div = DivWdg()
        error_div.add("<hr/>")
        error_div.add("Error %s" % self.status)
        error_div.add("<hr/>")
        div.add(error_div)
        error_div.add_style("font-size: 18px")
        error_div.add_style("font-weight: bold")
        error_div.add_style("padding: 10px")
        error_div.add_style("width: auto")
        error_div.add_color("background", "background", -3)
        error_div.add_color("color", "color")
        #error_div.add_border()
        error_div.add_style("margin-left: 5px")
        error_div.add_style("margin-right: 5px")
        error_div.add_style("margin-top: -10px")

        div.add("<br/>")


        span = DivWdg()
        #span.add_color("color", "color")
        #span.add_style("color", "#FFF")
        if self.status == 404:
            span.add(HtmlElement.b("You have tried to access a url that is not recognized."))
        else:
            span.add(HtmlElement.b(self.message))
        span.add(HtmlElement.br(2))

        web = WebContainer.get_web()
        root = web.get_site_root()
        if self.message.startswith('No project ['):
            label = 'You may need to correct the default_project setting in the TACTIC config.'
        else:
            label = "Go to the Main page for a list of valid projects"
        span.add(label)
        div.add(span)
        div.add(HtmlElement.br())

        from tactic.ui.widget import ActionButtonWdg
        button_div = DivWdg()
        button_div.add_style("width: 90px")
        button_div.add_style("margin: 0px auto")

        div.add(button_div)
        button = ActionButtonWdg(title="Go to Main", tip='Click to go to main page')
        button_div.add(button)
        
        button.add_behavior( {
        'type': 'click_up',
        'cbjs_action': '''
        document.location = '/';
        '''
        } )
        button.add_event("onmouseup", "document.location='/'")

        return div

#.........这里部分代码省略.........
                return self.handle_not_logged_in(allow_change_admin=False)

            else:
                from pyasm.widget import BottomWdg, Error403Wdg
                widget = Widget()
                top = self.get_top_wdg()
                widget.add( top )
                widget.add( Error403Wdg() )
                widget.add( BottomWdg() )
                widget.get_display()
                if is_upload:
                    print("WARNING: User [%s] is not allowed to upload to project [%s]."%(login_name, project))
                return



        if login_name == 'guest':
            # let the site handle the guest completely
            guest_wdg = site_obj.get_guest_wdg(self.hash)
            if guest_wdg:
                web_app = WebApp()
                web_app.get_display(guest_wdg)
                return



        # some extra precautions in guest mode
        if login_name == 'guest' and guest_mode != "full":
            # show a restricted guest mode
            from pyasm.widget import WebLoginWdg, BottomWdg
            from tactic.ui.app import TitleTopWdg

            from pyasm.biz import Project
            from tactic.ui.panel import HashPanelWdg
            web = WebContainer.get_web()



            widget = Widget()
            top = TitleTopWdg()
            widget.add(top)
            body = top.get_body()
            body.add_color("background", "background")
            body.add_color("color", "color")


            has_site = False

            # use the path to set the project and/or site
            path_info = site_obj.get_request_path_info()
            if path_info:
                path_site = path_info.get("site")

                try:
                    Site.set_site(path_site)
                    has_site = True
                except Exception as e:
                    print("WARNING: ", e)
                    current_project = web.get_context_name()
                else:
                    current_project = path_info.get("project_code")
                    if not current_project:
                        current_project = web.get_context_name()

            else:
                # get the project from the url because we are still