Python globals.Response类代码示例

def env(
    a,
    import_models=False,
    c=None,
    f=None,
    dir='',
    extra_request={},
    ):
    """
    Return web2py execution environment for application (a), controller (c),
    function (f).
    If import_models is True the exec all application models into the
    environment.

    extra_request allows you to pass along any extra
    variables to the request object before your models
    get executed. This was mainly done to support
    web2py_utils.test_runner, however you can use it
    with any wrapper scripts that need access to the
    web2py environment.
    """

    request = Request()
    response = Response()
    session = Session()
    request.application = a

    # Populate the dummy environment with sensible defaults.

    if not dir:
        request.folder = os.path.join('applications', a)
    else:
        request.folder = dir
    request.controller = c or 'default'
    request.function = f or 'index'
    response.view = '%s/%s.html' % (request.controller,
                                    request.function)
    request.env.path_info = '/%s/%s/%s' % (a, c, f)
    request.env.http_host = '127.0.0.1:8000'
    request.env.remote_addr = '127.0.0.1'
    request.env.web2py_runtime_gae = settings.global_settings.web2py_runtime_gae

    for k,v in extra_request.items():
        request[k] = v

    # Monkey patch so credentials checks pass.

    def check_credentials(request, other_application='admin'):
        return True

    fileutils.check_credentials = check_credentials

    environment = build_environment(request, response, session)

    if import_models:
        try:
            run_models_in(environment)
        except RestrictedError, e:
            sys.stderr.write(e.traceback+'\n')
            sys.exit(1)

 def switch_mode(self):
     settings, request, response, T = self.settings, current.request, current.response, current.T
     
     _arg0 = request.args(0)
     if not (_arg0 and (EDIT_MODE in _arg0 or PREVIEW_MODE in _arg0 or  REFERENCE_MODE in _arg0)):
         self.view_mode = LIVE_MODE
         return
     else:
         self.view_mode = _arg0
         current_device = None
         for device in self.settings.devices:
             suffix = '_managed_html_%s'%device['name']
             if suffix in _arg0:
                 request.update(**device.get('request_updator', {}))
                 current_device = device
                 break
         
         if request.args and request.args[-1] == 'managed_html.js':
             # Return javascript
             
             from globals import Response, Storage
             _response = Response()
             _response._view_environment = current.globalenv.copy()
             _response._view_environment.update(
                 request=Storage(folder=os.path.join(os.path.dirname(os.path.dirname(request.folder)), APP)),
                 response=_response,
             )
             
             _device_url_base = self.view_mode
             for device in self.settings.devices:
                 _device_url_base = _device_url_base.replace('_managed_html_%s' % device['name'], '')
             for device in self.settings.devices:
                 device.update({'url':self.settings.URL(args=[_device_url_base + '_managed_html_%s' % device['name']] + request.args[1:-1], vars=request.vars)})
             
             _response.headers['Content-Type'] = 'text/javascript; charset=utf-8;'
             raise HTTP(200, _response.render('plugin_managed_html/managed_html_ajax.js',
                         dict(
                             home_url=settings.home_url,
                             home_label=settings.home_label,
                             edit_url=settings.URL(args=[self.view_mode.replace(PREVIEW_MODE, EDIT_MODE).replace(REFERENCE_MODE, EDIT_MODE)] +
                                                         request.args[1:-1], vars=request.vars)
                                         if PREVIEW_MODE in self.view_mode or REFERENCE_MODE in self.view_mode else '',
                             preview_url=settings.URL(args=[self.view_mode.replace(EDIT_MODE, PREVIEW_MODE).replace(REFERENCE_MODE, PREVIEW_MODE)] +
                                                              request.args[1:-1], vars=request.vars)
                                         if EDIT_MODE in self.view_mode or REFERENCE_MODE in self.view_mode else '',
                             reference_url=settings.URL(args=[self.view_mode.replace(EDIT_MODE, REFERENCE_MODE).replace(PREVIEW_MODE, REFERENCE_MODE).replace('_managed_html_%s' % current_device['name'] if current_device else '', '')] +
                                                              request.args[1:-1], vars=request.vars)
                                         if EDIT_MODE in self.view_mode or PREVIEW_MODE in self.view_mode else '',
                             live_url=self.settings.URL(args=request.args[1:-1], vars=request.vars, scheme='http'),
                             show_page_grid=self._show_page_grid_js() if settings.page_grid else '',
                             devices=self.settings.devices,
                             current_device=current_device,
                             is_edit_mode=EDIT_MODE in self.view_mode,
                             is_preview_mode=PREVIEW_MODE in self.view_mode,
                         )),
                        **_response.headers)
         
         response.files.append(URL(args=((request.args or []) + ['managed_html.js'])))
         self.use_grid(args=request.args[:2])

def env(
    a,
    import_models=False,
    c=None,
    f=None,
    dir='',
    ):
    """
    Return web2py execution environment for application (a), controller (c),
    function (f).
    If import_models is True the exec all application models into the
    environment.
    """

    request = Request()
    response = Response()
    session = Session()
    request.application = a

    # Populate the dummy environment with sensible defaults.

    if not dir:
        request.folder = os.path.join('applications', a)
    else:
        request.folder = dir
    request.controller = c or 'default'
    request.function = f or 'index'
    response.view = '%s/%s.html' % (request.controller,
                                    request.function)
    request.env.path_info = '/%s/%s/%s' % (a, c, f)
    request.env.http_host = '127.0.0.1:8000'
    request.env.remote_addr = '127.0.0.1'

    # Monkey patch so credentials checks pass.

    def check_credentials(request, other_application='admin'):
        return True

    fileutils.check_credentials = check_credentials

    environment = build_environment(request, response, session)

    if import_models:
        try:
            run_models_in(environment)
        except RestrictedError, e:
            sys.stderr.write(e.traceback+'\n')
            sys.exit(1)

 def switch_mode(self):
     settings, request, response, T = self.settings, current.request, current.response, current.T
     
     _arg0 = request.args(0)
     if not (_arg0 and (EDIT_MODE in _arg0 or PREVIEW_MODE in _arg0)):
         self.view_mode = LIVE_MODE
         return
     else:
         self.view_mode = _arg0
         if request.args and request.args[-1] == 'managed_html.js':
             # Return javascript
             
             from globals import Response, Storage
             _response = Response()
             _response._view_environment = current.globalenv.copy()
             _response._view_environment.update(
                 request=Storage(folder=os.path.join(os.path.dirname(os.path.dirname(request.folder)), APP)),
                 response=_response,
             )
             
             _response.headers['Content-Type'] = 'text/javascript; charset=utf-8;'
             raise HTTP(200, _response.render('plugin_managed_html/managed_html_ajax.js',
                         dict(
                             home_url=settings.home_url,
                             home_label=settings.home_label,
                             edit_url=settings.URL(args=[self.view_mode.replace(PREVIEW_MODE, EDIT_MODE)] +
                                                         request.args[1:-1], vars=request.vars)
                                         if PREVIEW_MODE in self.view_mode else '',
                             preview_url=settings.URL(args=[self.view_mode.replace(EDIT_MODE, PREVIEW_MODE)] +
                                                              request.args[1:-1], vars=request.vars)
                                         if EDIT_MODE in self.view_mode else '',
                             live_url=self.settings.URL(args=request.args[1:-1], vars=request.vars, scheme='http'),
                             show_page_grid=self._show_page_grid_js() if settings.page_grid else '',
                         )),
                        **_response.headers)
                        
         response.files.append(URL(args=((request.args or []) + ['managed_html.js'])))
                       
         self.use_grid(args=request.args[:2])

def wsgibase(environ, responder):
    """
    this is the gluon wsgi application. the first function called when a page
    is requested (static or dynamic). it can be called by paste.httpserver
    or by apache mod_wsgi.

      - fills request with info
      - the environment variables, replacing '.' with '_'
      - adds web2py path and version info
      - compensates for fcgi missing path_info and query_string
      - validates the path in url

    The url path must be either:

    1. for static pages:

      - /<application>/static/<file>

    2. for dynamic pages:

      - /<application>[/<controller>[/<function>[/<sub>]]][.<extension>]
      - (sub may go several levels deep, currently 3 levels are supported:
         sub1/sub2/sub3)

    The naming conventions are:

      - application, controller, function and extension may only contain
        [a-zA-Z0-9_]
      - file and sub may also contain '-', '=', '.' and '/'
    """

    current.__dict__.clear()
    request = Request()
    response = Response()
    session = Session()
    env = request.env
    env.web2py_path = global_settings.applications_parent
    env.web2py_version = web2py_version
    env.update(global_settings)
    static_file = False
    try:
        try:
            try:
                # ##################################################
                # handle fcgi missing path_info and query_string
                # select rewrite parameters
                # rewrite incoming URL
                # parse rewritten header variables
                # parse rewritten URL
                # serve file if static
                # ##################################################

                fixup_missing_path_info(environ)
                (static_file, version, environ) = url_in(request, environ)
                response.status = env.web2py_status_code or response.status

                if static_file:
                    if environ.get('QUERY_STRING', '').startswith(
                            'attachment'):
                        response.headers['Content-Disposition'] \
                            = 'attachment'
                    if version:
                        response.headers['Cache-Control'] = 'max-age=315360000'
                        response.headers[
                            'Expires'] = 'Thu, 31 Dec 2037 23:59:59 GMT'
                    response.stream(static_file, request=request)

                # ##################################################
                # fill in request items
                # ##################################################
                app = request.application  # must go after url_in!

                if not global_settings.local_hosts:
                    local_hosts = set(['127.0.0.1', '::ffff:127.0.0.1', '::1'])
                    if not global_settings.web2py_runtime_gae:
                        try:
                            fqdn = socket.getfqdn()
                            local_hosts.add(socket.gethostname())
                            local_hosts.add(fqdn)
                            local_hosts.update([
                                ip[4][0] for ip in socket.getaddrinfo(
                                    fqdn, 0)])
                            if env.server_name:
                                local_hosts.add(env.server_name)
                                local_hosts.update([
                                    ip[4][0] for ip in socket.getaddrinfo(
                                        env.server_name, 0)])
                        except (socket.gaierror, TypeError):
                            pass
                    global_settings.local_hosts = list(local_hosts)
                else:
                    local_hosts = global_settings.local_hosts
                client = get_client(env)
                x_req_with = str(env.http_x_requested_with).lower()

                request.update(
                    client = client,
                    folder = abspath('applications', app) + os.sep,
                    ajax = x_req_with == 'xmlhttprequest',
                    cid = env.http_web2py_component_element,
#.........这里部分代码省略.........

def render(content="hello world",
           stream=None,
           filename=None,
           path=None,
           context={},
           lexers={},
           delimiters=('{{', '}}')
           ):
    """
    >>> render()
    'hello world'
    >>> render(content='abc')
    'abc'
    >>> render(content='abc\\'')
    "abc'"
    >>> render(content='a"\\'bc')
    'a"\\'bc'
    >>> render(content='a\\nbc')
    'a\\nbc'
    >>> render(content='a"bcd"e')
    'a"bcd"e'
    >>> render(content="'''a\\nc'''")
    "'''a\\nc'''"
    >>> render(content="'''a\\'c'''")
    "'''a\'c'''"
    >>> render(content='{{for i in range(a):}}{{=i}}<br />{{pass}}', context=dict(a=5))
    '0<br />1<br />2<br />3<br />4<br />'
    >>> render(content='{%for i in range(a):%}{%=i%}<br />{%pass%}', context=dict(a=5),delimiters=('{%','%}'))
    '0<br />1<br />2<br />3<br />4<br />'
    >>> render(content="{{='''hello\\nworld'''}}")
    'hello\\nworld'
    >>> render(content='{{for i in range(3):\\n=i\\npass}}')
    '012'
    """
    # here to avoid circular Imports
    try:
        from globals import Response
    except ImportError:
        # Working standalone. Build a mock Response object.
        Response = DummyResponse

        # Add it to the context so we can use it.
        if not 'NOESCAPE' in context:
            context['NOESCAPE'] = NOESCAPE

    # save current response class
    if context and 'response' in context:
        old_response_body = context['response'].body
        context['response'].body = StringIO.StringIO()
    else:
        old_response_body = None
        context['response'] = Response()

    # If we don't have anything to render, why bother?
    if not content and not stream and not filename:
        raise SyntaxError("Must specify a stream or filename or content")

    # Here for legacy purposes, probably can be reduced to
    # something more simple.
    close_stream = False
    if not stream:
        if filename:
            stream = open(filename, 'rb')
            close_stream = True
        elif content:
            stream = StringIO.StringIO(content)

    # Execute the template.
    code = str(TemplateParser(stream.read(
    ), context=context, path=path, lexers=lexers, delimiters=delimiters))
    try:
        exec(code) in context
    except Exception:
        # for i,line in enumerate(code.split('\n')): print i,line
        raise

    if close_stream:
        stream.close()

    # Returned the rendered content.
    text = context['response'].body.getvalue()
    if old_response_body is not None:
        context['response'].body = old_response_body
    return text

def wsgibase(environ, responder):
    """
    this is the gluon wsgi application. the first function called when a page
    is requested (static or dynamic). it can be called by paste.httpserver
    or by apache mod_wsgi.

      - fills request with info
      - the environment variables, replacing '.' with '_'
      - adds web2py path and version info
      - compensates for fcgi missing path_info and query_string
      - validates the path in url

    The url path must be either:

    1. for static pages:

      - /<application>/static/<file>

    2. for dynamic pages:

      - /<application>[/<controller>[/<function>[/<sub>]]][.<extension>]
      - (sub may go several levels deep, currently 3 levels are supported:
         sub1/sub2/sub3)

    The naming conventions are:

      - application, controller, function and extension may only contain
        [a-zA-Z0-9_]
      - file and sub may also contain '-', '=', '.' and '/'
    """

    rewrite.select(environ)
    if rewrite.params.routes_in:
        environ = rewrite.filter_in(environ)

    request = Request()
    response = Response()
    session = Session()
    static_file = False
    try:
        try:

            # ##################################################
            # parse the environment variables
            # ##################################################

            for (key, value) in environ.items():
                request.env[key.lower().replace('.', '_')] = value
            request.env.web2py_path = web2py_path
            request.env.web2py_version = web2py_version
            request.env.update(settings)

            # ##################################################
            # invoke the legacy URL parser and serve static file
            # ##################################################

            static_file = parse_url(request, environ)
            if static_file:
                if request.env.get('query_string', '')[:10] == 'attachment':
                    response.headers['Content-Disposition'] = 'attachment'
                response.stream(static_file, request=request)

            # ##################################################
            # build missing folder
            # ##################################################

            if not request.env.web2py_runtime_gae:
                for subfolder in ['models','views','controllers', 'databases',
                                  'modules','cron','errors','sessions',
                                  'languages','static','private','uploads']:
                    path =  os.path.join(request.folder,subfolder)
                    if not os.path.exists(path):
                        os.mkdir(path)

            # ##################################################
            # get the GET and POST data
            # ##################################################

            parse_get_post_vars(request, environ)

            # ##################################################
            # expose wsgi hooks for convenience
            # ##################################################

            request.wsgi.environ = environ_aux(environ,request)
            request.wsgi.start_response = lambda status='200', headers=[], \
                exec_info=None, response=response: \
                start_response_aux(status, headers, exec_info, response)
            request.wsgi.middleware = lambda *a: middleware_aux(request,response,*a)

            # ##################################################
            # load cookies
            # ##################################################

            if request.env.http_cookie:
                try:
                    request.cookies.load(request.env.http_cookie)
                except Cookie.CookieError, e:
                    pass # invalid cookies

#.........这里部分代码省略.........

def wsgibase(environ, responder):
    """
    this is the gluon wsgi application. the first function called when a page
    is requested (static or dynamic). it can be called by paste.httpserver
    or by apache mod_wsgi.

      - fills request with info
      - the environment variables, replacing '.' with '_'
      - adds web2py path and version info
      - compensates for fcgi missing path_info and query_string
      - validates the path in url

    The url path must be either:

    1. for static pages:

      - /<application>/static/<file>

    2. for dynamic pages:

      - /<application>[/<controller>[/<function>[/<sub>]]][.<extension>]
      - (sub may go several levels deep, currently 3 levels are supported:
         sub1/sub2/sub3)

    The naming conventions are:

      - application, controller, function and extension may only contain
        [a-zA-Z0-9_]
      - file and sub may also contain '-', '=', '.' and '/'
    """

    request = Request()
    response = Response()
    session = Session()
    request.env.web2py_path = global_settings.applications_parent
    request.env.web2py_version = web2py_version
    request.env.update(global_settings)
    static_file = False
    try:
        try:
            try:
                # ##################################################
                # handle fcgi missing path_info and query_string
                # select rewrite parameters
                # rewrite incoming URL
                # parse rewritten header variables
                # parse rewritten URL
                # serve file if static
                # ##################################################

                if not environ.get('PATH_INFO',None) and environ.get('REQUEST_URI',None):
                    # for fcgi, get path_info and query_string from request_uri
                    items = environ['REQUEST_URI'].split('?')
                    environ['PATH_INFO'] = items[0]
                    if len(items) > 1:
                        environ['QUERY_STRING'] = items[1]
                    else:
                        environ['QUERY_STRING'] = ''
                (static_file, environ) = rewrite.url_in(request, environ)
                if static_file:
                    if request.env.get('query_string', '')[:10] == 'attachment':
                        response.headers['Content-Disposition'] = 'attachment'
                    response.stream(static_file, request=request)

                # ##################################################
                # fill in request items
                # ##################################################

                request.client = get_client(request.env)
                request.folder = os.path.join(request.env.applications_parent,
                        'applications', request.application) + '/'
                request.ajax = str(request.env.http_x_requested_with).lower() == 'xmlhttprequest'
                request.cid = request.env.http_web2py_component_element

                # ##################################################
                # access the requested application
                # ##################################################

                if not os.path.exists(request.folder):
                    if request.application == rewrite.thread.routes.default_application and request.application != 'welcome':
                        request.application = 'welcome'
                        redirect(Url(r=request))
                    elif rewrite.thread.routes.error_handler:
                        redirect(Url(rewrite.thread.routes.error_handler['application'],
                                     rewrite.thread.routes.error_handler['controller'],
                                     rewrite.thread.routes.error_handler['function'],
                                     args=request.application))
                    else:
                        raise HTTP(404,
                                   rewrite.thread.routes.error_message % 'invalid request',
                                   web2py_error='invalid application')
                request.url = Url(r=request, args=request.args,
                                       extension=request.raw_extension)

                # ##################################################
                # build missing folders
                # ##################################################

                create_missing_app_folders(request)

#.........这里部分代码省略.........

def wsgibase(environ, responder):
    """
    this is the gluon wsgi application. the first function called when a page
    is requested (static or dynamic). it can be called by paste.httpserver
    or by apache mod_wsgi.

      - fills request with info
      - the environment variables, replacing '.' with '_'
      - adds web2py path and version info
      - compensates for fcgi missing path_info and query_string
      - validates the path in url

    The url path must be either:

    1. for static pages:

      - /<application>/static/<file>

    2. for dynamic pages:

      - /<application>[/<controller>[/<function>[/<sub>]]][.<extension>]
      - (sub may go several levels deep, currently 3 levels are supported:
         sub1/sub2/sub3)

    The naming conventions are:

      - application, controller, function and extension may only contain
        [a-zA-Z0-9_]
      - file and sub may also contain '-', '=', '.' and '/'
    """

    if rewrite.params.routes_in:
        environ = rewrite.filter_in(environ)

    request = Request()
    response = Response()
    session = Session()
    try:
        try:

            # ##################################################
            # parse the environment variables
            # ##################################################

            for (key, value) in environ.items():
                request.env[key.lower().replace('.', '_')] = value
            request.env.web2py_path = web2py_path
            request.env.web2py_version = web2py_version
            request.env.update(settings)

            # ##################################################
            # validate the path in url
            # ##################################################

            if not request.env.path_info and request.env.request_uri:
                # for fcgi, decode path_info and query_string
                items = request.env.request_uri.split('?')
                request.env.path_info = items[0]
                if len(items) > 1:
                    request.env.query_string = items[1]
                else:
                    request.env.query_string = ''
            path = request.env.path_info.replace('\\', '/')
            path = regex_space.sub('_', path)
            match = regex_url.match(path)
            if not match:
                raise HTTP(400,
                           rewrite.params.error_message,
                           web2py_error='invalid path')

            # ##################################################
            # serve if a static file
            # ##################################################

            if match.group('c') == 'static':
                raise HTTP(400, rewrite.params.error_message)
            if match.group('x'):
                static_file = os.path.join(request.env.web2py_path,
                                           'applications', match.group('b'),
                                           'static', match.group('x'))
                if request.env.get('query_string', '')[:10] == 'attachment':
                    response.headers['Content-Disposition'] = 'attachment'
                response.stream(static_file, request=request)

            # ##################################################
            # parse application, controller and function
            # ##################################################

            request.application = match.group('a') or 'init'
            request.controller = match.group('c') or 'default'
            request.function = match.group('f') or 'index'
            raw_extension = match.group('e')
            request.extension = raw_extension or 'html'
            request.args = \
                List((match.group('s') and match.group('s').split('/')) or [])
            request.client = get_client(request.env)
            request.folder = os.path.join(request.env.web2py_path,
                    'applications', request.application) + '/'

            # ##################################################
#.........这里部分代码省略.........

def LOAD(c=None, f='index', args=None, vars=None,
         extension=None, target=None,ajax=False,ajax_trap=False,
         url=None,user_signature=False, content='loading...',**attr):
    from html import TAG, DIV, URL, SCRIPT, XML
    if args is None: args = []
    vars = Storage(vars or {})
    target = target or 'c'+str(random.random())[2:]
    attr['_id']=target
    request = current.request
    if '.' in f:
        f, extension = f.split('.',1)
    if url or ajax:
        url = url or URL(request.application, c, f, r=request,
                         args=args, vars=vars, extension=extension,
                         user_signature=user_signature)
        script = SCRIPT('web2py_component("%s","%s")' % (url, target),
                             _type="text/javascript")
        return TAG[''](script, DIV(content,**attr))
    else:
        if not isinstance(args,(list,tuple)):
            args = [args]
        c = c or request.controller        
        other_request = Storage()
        for key, value in request.items():
            other_request[key] = value
        other_request['env'] = Storage()
        for key, value in request.env.items():
            other_request.env['key'] = value
        other_request.controller = c
        other_request.function = f
        other_request.extension = extension or request.extension
        other_request.args = List(args)
        other_request.vars = vars
        other_request.get_vars = vars
        other_request.post_vars = Storage()
        other_response = Response()
        other_request.env.path_info = '/' + \
            '/'.join([request.application,c,f] + \
                         map(str, other_request.args))
        other_request.env.query_string = \
            vars and URL(vars=vars).split('?')[1] or ''
        other_request.env.http_web2py_component_location = \
            request.env.path_info
        other_request.cid = target
        other_request.env.http_web2py_component_element = target
        other_response.view = '%s/%s.%s' % (c,f, other_request.extension)

        other_environment = copy.copy(current.globalenv) ### NASTY

        other_response._view_environment = other_environment
        other_response.generic_patterns = \
            copy.copy(current.response.generic_patterns)
        other_environment['request'] = other_request
        other_environment['response'] = other_response
        
        ## some magic here because current are thread-locals
        
        original_request, current.request = current.request, other_request
        original_response, current.response = current.response, other_response
        page = run_controller_in(c, f, other_environment)
        if isinstance(page, dict):
            other_response._vars = page
            for key in page:
                other_response._view_environment[key] = page[key]
            run_view_in(other_response._view_environment)
            page = other_response.body.getvalue()
        current.request, current.response = original_request, original_response
        js = None
        if ajax_trap:
            link = URL(request.application, c, f, r=request,
                            args=args, vars=vars, extension=extension,
                            user_signature=user_signature)
            js = "web2py_trap_form('%s','%s');" % (link, target)
        script = js and SCRIPT(js,_type="text/javascript") or ''
        return TAG[''](DIV(XML(page),**attr),script)

def render(
    content="hello world",
    stream=None,
    filename=None,
    path=None,
    context={},
    lexers={},
    delimiters=("{{", "}}"),
    writer="response.write",
):
    """
    Generic render function

    Args:
        content: default content
        stream: file-like obj to read template from
        filename: where to find template
        path: base path for templates
        context: env
        lexers: custom lexers to use
        delimiters: opening and closing tags
        writer: where to inject the resulting stream

    Example::
        >>> render()
        'hello world'
        >>> render(content='abc')
        'abc'
        >>> render(content="abc'")
        "abc'"
        >>> render(content=''''a"'bc''')
        'a"'bc'
        >>> render(content='a\\nbc')
        'a\\nbc'
        >>> render(content='a"bcd"e')
        'a"bcd"e'
        >>> render(content="'''a\\nc'''")
        "'''a\\nc'''"
        >>> render(content="'''a\\'c'''")
        "'''a\'c'''"
        >>> render(content='{{for i in range(a):}}{{=i}}<br />{{pass}}', context=dict(a=5))
        '0<br />1<br />2<br />3<br />4<br />'
        >>> render(content='{%for i in range(a):%}{%=i%}<br />{%pass%}', context=dict(a=5),delimiters=('{%','%}'))
        '0<br />1<br />2<br />3<br />4<br />'
        >>> render(content="{{='''hello\\nworld'''}}")
        'hello\\nworld'
        >>> render(content='{{for i in range(3):\\n=i\\npass}}')
        '012'

    """
    # here to avoid circular Imports
    try:
        from globals import Response
    except ImportError:
        # Working standalone. Build a mock Response object.
        Response = DummyResponse

        # Add it to the context so we can use it.
        if not "NOESCAPE" in context:
            context["NOESCAPE"] = NOESCAPE

    # save current response class
    if context and "response" in context:
        old_response_body = context["response"].body
        context["response"].body = StringIO.StringIO()
    else:
        old_response_body = None
        context["response"] = Response()

    # If we don't have anything to render, why bother?
    if not content and not stream and not filename:
        raise SyntaxError("Must specify a stream or filename or content")

    # Here for legacy purposes, probably can be reduced to
    # something more simple.
    close_stream = False
    if not stream:
        if filename:
            stream = open(filename, "rb")
            close_stream = True
        elif content:
            stream = StringIO.StringIO(content)

    # Execute the template.
    code = str(
        TemplateParser(stream.read(), context=context, path=path, lexers=lexers, delimiters=delimiters, writer=writer)
    )
    try:
        exec(code) in context
    except Exception:
        # for i,line in enumerate(code.split('\n')): print i,line
        raise

    if close_stream:
        stream.close()

    # Returned the rendered content.
    text = context["response"].body.getvalue()
    if old_response_body is not None:
        context["response"].body = old_response_body
#.........这里部分代码省略.........

#.........这里部分代码省略.........
        def check_authorization():
            if not URL.verify(request, user_signature=user_signature, hmac_key=hmac_key):
                raise HTTP(403)
                
        action = request.args and request.args[-1]
      
        if action == 'new':
            check_authorization()
            vars = request.post_vars
            if not vars.name or vars.name == '---':
                raise HTTP(406)
            node_id = self.tree_model.insert_node(vars.target, name=vars.name)
            if onsuccess:
                onsuccess([])
            raise HTTP(200, node_id)
            
        elif action == 'edit':
            check_authorization()
            vars = request.post_vars
            if not vars.name or vars.name == '---':
                raise HTTP(406)
            node = self.tree_model.get_node(vars.id)
            if not node:
                raise HTTP(404)
            if node.name == vars.name:
                raise HTTP(406)
            node.update_record(name=vars.name)
            if onsuccess:
                onsuccess([])
            raise HTTP(200)
            
        elif action == 'delete':
            check_authorization()
            vars = request.post_vars
            node = self.tree_model.get_node(vars.id)
            if not self.tree_model.is_leaf_node(node) or not node:
                raise HTTP(404)
            affected_node_ids = [_node.id for _node in self.tree_model.ancestors_from_node(node).select()]

            self.tree_model.delete_node(node)
            if onsuccess:
                onsuccess(affected_node_ids)
            raise HTTP(200)
            
        elif action == 'move':
            check_authorization()
            vars = request.post_vars
            node = self.tree_model.get_node(vars.id)
            if self.tree_model.is_root_node(node):
                raise HTTP(406)
            affected_node_ids = [_node.id for _node in self.tree_model.ancestors_from_node(node).select()]
            
            parent_node = self.tree_model.get_node(vars.parent)
            position = int(vars.position)
            
            target_child = self.tree_model.get_first_child(parent_node)
            if target_child:
                tmp = None
                end_flag = False
                for i in range(position):
                    tmp = self.tree_model.get_next_sibling(target_child)
                    if tmp is False:
                        self.tree_model.move_node(node, target_child, 'right')
                        end_flag = True
                    target_child = tmp
                if end_flag is False:
                    self.tree_model.move_node(node, target_child, 'left')
            else:
                self.tree_model.move_node(node, parent_node)
                
            affected_node_ids += [_node.id for _node in self.tree_model.ancestors_from_node(node).select()]
            if onsuccess:
                onsuccess(list(set(affected_node_ids)))
                
            raise HTTP(200)

        root_nodes = self.tree_model.roots().select()
        data = []
        initially_open = []
        for i, root_node in enumerate(root_nodes):
            _data, _initially_open = self.build_tree_objects(root_node)
            data.append(_data)
            initially_open += _initially_open
        
        from gluon.utils import web2py_uuid
        element_id = web2py_uuid()

        from globals import Response, Storage
        _response = Response()
        _response._view_environment = current.globalenv.copy()
        _response._view_environment.update(
            request=Storage(folder=os.path.join(os.path.dirname(os.path.dirname(request.folder)), APP)),
            response=_response,
        )
        return XML(_response.render('plugin_jstree/block.html',
                                   dict(url=url, data=data,
                                        initially_open=initially_open,
                                        tree_crud_buttons=self.render_tree_crud_buttons(),
                                        element_id=element_id,
                                        APP=APP)))

def wsgibase(environ, responder):
    """
    this is the gluon wsgi application. the first function called when a page
    is requested (static or dynamic). it can be called by paste.httpserver
    or by apache mod_wsgi.

      - fills request with info
      - the environment variables, replacing '.' with '_'
      - adds web2py path and version info
      - compensates for fcgi missing path_info and query_string
      - validates the path in url

    The url path must be either:

    1. for static pages:

      - /<application>/static/<file>

    2. for dynamic pages:

      - /<application>[/<controller>[/<function>[/<sub>]]][.<extension>]
      - (sub may go several levels deep, currently 3 levels are supported:
         sub1/sub2/sub3)

    The naming conventions are:

      - application, controller, function and extension may only contain
        [a-zA-Z0-9_]
      - file and sub may also contain '-', '=', '.' and '/'
    """

    current.__dict__.clear()
    request = Request()
    response = Response()
    session = Session()
    env = request.env
    env.web2py_path = global_settings.applications_parent
    env.web2py_version = web2py_version
    env.update(global_settings)
    static_file = False
    try:
        try:
            try:
                # ##################################################
                # handle fcgi missing path_info and query_string
                # select rewrite parameters
                # rewrite incoming URL
                # parse rewritten header variables
                # parse rewritten URL
                # serve file if static
                # ##################################################

                fixup_missing_path_info(environ)
                (static_file, environ) = url_in(request, environ)
                response.status = env.web2py_status_code or response.status

                if static_file:
                    if environ.get("QUERY_STRING", "").startswith("attachment"):
                        response.headers["Content-Disposition"] = "attachment"
                    response.stream(static_file, request=request)

                # ##################################################
                # fill in request items
                # ##################################################
                app = request.application  ## must go after url_in!

                http_host = env.http_host.split(":", 1)[0]
                local_hosts = [http_host, "::1", "127.0.0.1", "::ffff:127.0.0.1"]
                if not global_settings.web2py_runtime_gae:
                    local_hosts.append(socket.gethostname())
                    try:
                        local_hosts.append(socket.gethostbyname(http_host))
                    except socket.gaierror:
                        pass
                client = get_client(env)
                x_req_with = str(env.http_x_requested_with).lower()

                request.update(
                    client=client,
                    folder=abspath("applications", app) + os.sep,
                    ajax=x_req_with == "xmlhttprequest",
                    cid=env.http_web2py_component_element,
                    is_local=env.remote_addr in local_hosts,
                    is_https=env.wsgi_url_scheme in ["https", "HTTPS"] or env.https == "on",
                )
                request.uuid = request.compute_uuid()  # requires client
                request.url = environ["PATH_INFO"]

                # ##################################################
                # access the requested application
                # ##################################################

                if not exists(request.folder):
                    if app == rwthread.routes.default_application and app != "welcome":
                        redirect(URL("welcome", "default", "index"))
                    elif rwthread.routes.error_handler:
                        _handler = rwthread.routes.error_handler
                        redirect(URL(_handler["application"], _handler["controller"], _handler["function"], args=app))
                    else:
                        raise HTTP(
#.........这里部分代码省略.........

def wsgibase(environ, responder):
    """
    this is the gluon wsgi application. the furst function called when a page
    is requested (static or dynamical). it can be called by paste.httpserver
    or by apache mod_wsgi.
    """

    request = Request()
    response = Response()
    session = Session()
    try:
        try:
            session_file = None
            session_new = False

            # ##################################################
            # parse the environment variables - DONE
            # ##################################################

            for (key, value) in environ.items():
                request.env[key.lower().replace('.', '_')] = value
            request.env.web2py_path = web2py_path
            request.env.web2py_version = web2py_version

            # ##################################################
            # valudate the path in url
            # ##################################################

            if not request.env.path_info and request.env.request_uri:

                # for fcgi, decode path_info and query_string

                items = request.env.request_uri.split('?')
                request.env.path_info = items[0]
                if len(items) > 1:
                    request.env.query_string = items[1]
                else:
                    request.env.query_string = ''
            path = request.env.path_info[1:].replace('\\', '/')
            path = regex_space.sub('_', path)
            if not regex_url.match(path):
                raise HTTP(400, error_message,
                           web2py_error='invalid path')
            items = path.split('/')

            # ##################################################
            # serve if a static file
            # ##################################################

            if len(items) > 1 and items[1] == 'static':
                if len(items) < 3 or not items[2]:
                    raise HTTP(400, error_message)
                static_file = os.path.join(request.env.web2py_path,
                        'applications', items[0], 'static',
                        '/'.join(items[2:]))
                response.stream(static_file, request=request)

            # ##################################################
            # parse application, controller and function
            # ##################################################

            if len(items) and items[-1] == '':
                del items[-1]
            if len(items) == 0:
                items = ['init']
            if len(items) == 1:
                items.append('default')
            if len(items) == 2:
                items.append('index')
            if len(items) > 3:
                (items, request.args) = (items[:3], items[3:])
            if request.args == None:
                request.args = []
            request.application = items[0]
            request.controller = items[1]
            request.function = items[2]
            request.client = get_client(request.env)
            request.folder = os.path.join(request.env.web2py_path,
                    'applications', request.application) + '/'

            # ##################################################
            # access the requested application
            # ##################################################

            if not os.path.exists(request.folder):
                if items == ['init', 'default', 'index']:
                    items[0] = 'welcome'
                    redirect(html.URL(*items))
                raise HTTP(400, error_message,
                           web2py_error='invalid application')

            # ##################################################
            # get the GET and POST data -DONE
            # ##################################################

            request.body = tempfile.TemporaryFile()
            if request.env.content_length:
                copystream(request.env.wsgi_input, request.body,
                           int(request.env.content_length))

#.........这里部分代码省略.........

def wsgibase(environ, responder):
    """
    this is the gluon wsgi application. the first function called when a page
    is requested (static or dynamic). it can be called by paste.httpserver
    or by apache mod_wsgi.

      - fills request with info
      - the environment variables, replacing '.' with '_'
      - adds web2py path and version info
      - compensates for fcgi missing path_info and query_string
      - validates the path in url

    The url path must be either:

    1. for static pages:

      - /<application>/static/<file>

    2. for dynamic pages:

      - /<application>[/<controller>[/<function>[/<sub>]]][.<extension>]
      - (sub may go several levels deep, currently 3 levels are supported:
         sub1/sub2/sub3)

    The naming conventions are:

      - application, controller, function and extension may only contain
        [a-zA-Z0-9_]
      - file and sub may also contain '-', '=', '.' and '/'
    """

    current.__dict__.clear()
    request = Request()
    response = Response()
    session = Session()
    request.env.web2py_path = global_settings.applications_parent
    request.env.web2py_version = web2py_version
    request.env.update(global_settings)
    static_file = False
    try:
        try:
            try:
                # ##################################################
                # handle fcgi missing path_info and query_string
                # select rewrite parameters
                # rewrite incoming URL
                # parse rewritten header variables
                # parse rewritten URL
                # serve file if static
                # ##################################################

                if not environ.get('PATH_INFO',None) and \
                        environ.get('REQUEST_URI',None):
                    # for fcgi, get path_info and query_string from request_uri
                    items = environ['REQUEST_URI'].split('?')
                    environ['PATH_INFO'] = items[0]
                    if len(items) > 1:
                        environ['QUERY_STRING'] = items[1]
                    else:
                        environ['QUERY_STRING'] = ''
                if not environ.get('HTTP_HOST',None):
                    environ['HTTP_HOST'] = '%s:%s' % (environ.get('SERVER_NAME'),
                                                      environ.get('SERVER_PORT'))

                (static_file, environ) = rewrite.url_in(request, environ)
                if static_file:
                    if environ.get('QUERY_STRING', '')[:10] == 'attachment':
                        response.headers['Content-Disposition'] = 'attachment'
                    response.stream(static_file, request=request)

                # ##################################################
                # fill in request items
                # ##################################################

                http_host = request.env.http_host.split(':',1)[0]

                local_hosts = [http_host,'::1','127.0.0.1','::ffff:127.0.0.1']
                if not global_settings.web2py_runtime_gae:
                    local_hosts.append(socket.gethostname())
                    try: local_hosts.append(socket.gethostbyname(http_host))
                    except socket.gaierror: pass
                request.client = get_client(request.env)
                if not is_valid_ip_address(request.client):
                    raise HTTP(400,"Bad Request (request.client=%s)" % \
                                   request.client)
                request.folder = abspath('applications',
                                         request.application) + os.sep
                x_req_with = str(request.env.http_x_requested_with).lower()
                request.ajax = x_req_with == 'xmlhttprequest'
                request.cid = request.env.http_web2py_component_element
                request.is_local = request.env.remote_addr in local_hosts
                request.is_https = request.env.wsgi_url_scheme \
                    in ['https', 'HTTPS'] or request.env.https == 'on'

                # ##################################################
                # compute a request.uuid to be used for tickets and toolbar
                # ##################################################

                response.uuid = request.compute_uuid()

#.........这里部分代码省略.........