Пример #1
0
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 exec_environment(
        pyfile='',
        request=Request(),
        response=Response(),
        session=Session(),
):
    """
    .. function:: gluon.shell.exec_environment([pyfile=''[, request=Request()
        [, response=Response[, sessions=Session()]]]])

        Environment builder and module loader.


        Builds a web2py environment and optionally executes a Python
        file into the environment.
        A Storage dictionary containing the resulting environment is returned.
        The working directory must be web2py root -- this is the web2py default.

    """

    if request.folder is None:
        mo = re.match(r'(|.*/)applications/(?P<appname>[^/]+)', pyfile)
        if mo:
            appname = mo.group('appname')
            request.folder = os.path.join('applications', appname)
        else:
            request.folder = ''
    env = build_environment(request, response, session)
    if pyfile:
        pycfile = pyfile + 'c'
        if os.path.isfile(pycfile):
            exec read_pyc(pycfile) in env
        else:
            execfile(pyfile, env)
    return Storage(env)
Пример #3
0
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)
Пример #4
0
from globals import current
from html import *
from validators import *
from http import redirect, HTTP
from dal import DAL, Field
from sqlhtml import SQLFORM, SQLTABLE
from compileapp import LOAD

# Dummy code to enable code completion in IDE's.
if 0:
    from globals import Request, Response, Session
    from cache import Cache
    from languages import translator
    from tools import Auth, Crud, Mail, Service, PluginManager

    # API objects
    request = Request()
    response = Response()
    session = Session()
    cache = Cache(request)
    T = translator(request)

    # Objects commonly defined in application model files
    # (names are conventions only -- not part of API)
    db = DAL()
    auth = Auth(db)
    crud = Crud(db)
    mail = Mail()
    service = Service()
    plugins = PluginManager()
Пример #5
0
def LOAD(c=None, f='index', args=None, vars=None,
         extension=None, target=None,ajax=False,ajax_trap=False,
         url=None,user_signature=False, timeout=None, times=1,
         content='loading...',**attr):
    """  LOAD a component into the action's document

    Timing options:
    -times: An integer or string ("infinity"/"continuous")
    specifies how many times the component is requested
    -timeout (milliseconds): specifies the time to wait before
    starting the request or the frequency if times is greater than
    1 or "infinity".
    Timing options default to the normal behavior. The component
    is added on page loading without delay.
    """
    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.rsplit('.',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)
        # timing options
        if isinstance(times, basestring):
            if times.upper() in ("INFINITY", "CONTINUOUS"):
                times = "Infinity"
            else:
                raise TypeError("Unsupported times argument %s" % times)
        elif isinstance(times, int):
            if times <= 0:
                raise ValueError("Times argument must be greater than zero, 'Infinity' or None")
        else:
            raise TypeError("Unsupported times argument type %s" % type(times))
        if timeout is not None:
            if not isinstance(timeout, (int, long)):
                raise ValueError("Timeout argument must be an integer or None")
            elif timeout <= 0:
                raise ValueError("Timeout argument must be greater than zero or None")
            statement = "web2py_component('%s','%s', %s, %s);" \
            % (url, target, timeout, times)
        else:
            statement = "web2py_component('%s','%s');" % (url, target)
        script = SCRIPT(statement, _type="text/javascript")
        if not content is None:
            return TAG[''](script, DIV(content,**attr))
        else:
            return TAG[''](script)

    else:
        if not isinstance(args,(list,tuple)):
            args = [args]
        c = c or request.controller
        other_request = Storage(request)
        other_request['env'] = Storage(request.env)
        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
            other_response._view_environment.update(page)
            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)
Пример #6
0
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([
                                addrinfo[4][0]
                                for addrinfo in getipaddrinfo(fqdn)
                            ])
                            if env.server_name:
                                local_hosts.add(env.server_name)
                                local_hosts.update([
                                    addrinfo[4][0] for addrinfo in
                                    getipaddrinfo(env.server_name)
                                ])
                        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,
                    is_local = env.remote_addr in local_hosts,
                    is_https = env.wsgi_url_scheme in HTTPS_SCHEMES or \
                        request.env.http_x_forwarded_proto in HTTPS_SCHEMES \
                        or env.https == 'on')
                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(404,
                                   rwthread.routes.error_message %
                                   'invalid request',
                                   web2py_error='invalid application')
                elif not request.is_local and \
                        exists(pjoin(request.folder, 'DISABLED')):
                    raise HTTP(
                        503,
                        "<html><body><h1>Temporarily down for maintenance</h1></body></html>"
                    )

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

                create_missing_app_folders(request)

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

                # ##################################################
                # try load session or create new session file
                # ##################################################

                if not env.web2py_disable_session:
                    session.connect(request, response)

                # ##################################################
                # run controller
                # ##################################################

                if global_settings.debugging and app != "admin":
                    import gluon.debug
                    # activate the debugger
                    gluon.debug.dbg.do_debug(mainpyfile=request.folder)

                serve_controller(request, response, session)

            except HTTP, http_response:

                if static_file:
                    return http_response.to(responder, env=env)

                if request.body:
                    request.body.close()

                # ##################################################
                # on success, try store session in database
                # ##################################################
                session._try_store_in_db(request, response)

                # ##################################################
                # on success, commit database
                # ##################################################

                if response.do_not_commit is True:
                    BaseAdapter.close_all_instances(None)
                # elif response._custom_commit:
                #     response._custom_commit()
                elif response.custom_commit:
                    BaseAdapter.close_all_instances(response.custom_commit)
                else:
                    BaseAdapter.close_all_instances('commit')

                # ##################################################
                # if session not in db try store session on filesystem
                # this must be done after trying to commit database!
                # ##################################################

                session._try_store_in_cookie_or_file(request, response)

                if request.cid:
                    if response.flash:
                        http_response.headers['web2py-component-flash'] = \
                            urllib2.quote(xmlescape(response.flash)\
                                              .replace('\n',''))
                    if response.js:
                        http_response.headers['web2py-component-command'] = \
                            urllib2.quote(response.js.replace('\n',''))

                # ##################################################
                # store cookies in headers
                # ##################################################

                rcookies = response.cookies
                if session._forget and response.session_id_name in rcookies:
                    del rcookies[response.session_id_name]
                elif session._secure:
                    rcookies[response.session_id_name]['secure'] = True
                http_response.cookies2headers(rcookies)
                ticket = None

            except RestrictedError, e:

                if request.body:
                    request.body.close()

                # ##################################################
                # on application error, rollback database
                # ##################################################

                ticket = e.log(request) or 'unknown'
                if response._custom_rollback:
                    response._custom_rollback()
                else:
                    BaseAdapter.close_all_instances('rollback')

                http_response = \
                    HTTP(500, rwthread.routes.error_message_ticket %
                         dict(ticket=ticket),
                         web2py_error='ticket %s' % ticket)
Пример #7
0
def render(content="hello world",
           stream=None,
           filename=None,
           path=None,
           context={},
           lexers={},
           delimiters=('{{', '}}'),
           writer='response.write'):
    """
    >>> 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
    return text
Пример #8
0
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:
        # Working standalone. Build a mock Response object.
        class Response():
            def __init__(self):
                self.body = cStringIO.StringIO()

            def write(self, data, escape=True):
                if not escape:
                    self.body.write(str(data))
                elif hasattr(data, 'xml') and callable(data.xml):
                    self.body.write(data.xml())
                else:
                    # make it a string
                    if not isinstance(data, (str, unicode)):
                        data = str(data)
                    elif isinstance(data, unicode):
                        data = data.encode('utf8', 'xmlcharrefreplace')
                    data = cgi.escape(data, True).replace("'", "&#x27;")
                    self.body.write(data)

        # A little helper to avoid escaping.
        class NOESCAPE():
            def __init__(self, text):
                self.text = text

            def xml(self):
                return self.text

        # Add it to the context so we can use it.
        context['NOESCAPE'] = NOESCAPE

    # 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 = cStringIO.StringIO(content)

    # Get a response class.
    context['response'] = Response()

    # 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.
    return context['response'].body.getvalue()
Пример #9
0
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 request.env.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 += [socket.gethostname(),
                                    socket.gethostbyname(http_host)]
                request.client = get_client(request.env)
                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()

                # ##################################################
                # 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:
                        _handler = rewrite.thread.routes.error_handler
                        redirect(Url(_handler['application'],
                                     _handler['controller'],
                                     _handler['function'],
                                     args=request.application))
                    else:
                        raise HTTP(404, rewrite.thread.routes.error_message \
                                       % 'invalid request',
                                   web2py_error='invalid application')
                elif not request.is_local and \
                        os.path.exists(os.path.join(request.folder,'DISABLED')):
                    raise HTTP(200, "<html><body><h1>Down for maintenance</h1></body></html>")
                request.url = Url(r=request, args=request.args,
                                       extension=request.raw_extension)

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

                create_missing_app_folders(request)

                # ##################################################
                # 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

                # ##################################################
                # try load session or create new session file
                # ##################################################

                session.connect(request, response)

                # ##################################################
                # set no-cache headers
                # ##################################################

                response.headers['Content-Type'] = \
                    contenttype('.'+request.extension)
                response.headers['Cache-Control'] = \
                    'no-store, no-cache, must-revalidate, post-check=0, pre-check=0'
                response.headers['Expires'] = \
                    time.strftime('%a, %d %b %Y %H:%M:%S GMT', time.gmtime())
                response.headers['Pragma'] = 'no-cache'

                # ##################################################
                # run controller
                # ##################################################

                serve_controller(request, response, session)

            except HTTP, http_response:
                if static_file:
                    return http_response.to(responder)

                if request.body:
                    request.body.close()

                # ##################################################
                # on success, try store session in database
                # ##################################################
                session._try_store_in_db(request, response)

                # ##################################################
                # on success, commit database
                # ##################################################

                if response.do_not_commit is True:
                    BaseAdapter.close_all_instances(None)
                elif response._custom_commit:
                    response._custom_commit()
                else:
                    BaseAdapter.close_all_instances('commit')

                # ##################################################
                # if session not in db try store session on filesystem
                # this must be done after trying to commit database!
                # ##################################################

                session._try_store_on_disk(request, response)

                # ##################################################
                # store cookies in headers
                # ##################################################

                if request.cid:

                    if response.flash and not 'web2py-component-flash' in http_response.headers:
                        http_response.headers['web2py-component-flash'] = \
                            str(response.flash).replace('\n','')
                    if response.js and not 'web2py-component-command' in http_response.headers:
                        http_response.headers['web2py-component-command'] = \
                            response.js.replace('\n','')
                if session._forget and \
                        response.session_id_name in response.cookies:
                    del response.cookies[response.session_id_name]
                elif session._secure:
                    response.cookies[response.session_id_name]['secure'] = True
                if len(response.cookies)>0:
                    http_response.headers['Set-Cookie'] = \
                        [str(cookie)[11:] for cookie in response.cookies.values()]
                ticket=None

            except RestrictedError, e:

                if request.body:
                    request.body.close()

                # ##################################################
                # on application error, rollback database
                # ##################################################

                ticket = e.log(request) or 'unknown'
                if response._custom_rollback:
                    response._custom_rollback()
                else:
                    BaseAdapter.close_all_instances('rollback')

                http_response = \
                    HTTP(500, rewrite.thread.routes.error_message_ticket % \
                             dict(ticket=ticket),
                         web2py_error='ticket %s' % ticket)
Пример #10
0
    def __call__(
            self,
            args=[],
            user_signature=True,
            hmac_key=None,
            onsuccess=None,  # def onsuccess(affected_node_ids): ...
    ):
        request = current.request

        def url(**b):
            b['args'] = args + b.get('args', [])
            b['user_signature'] = user_signature
            b['hmac_key'] = hmac_key
            return URL(**b)

        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)))
Пример #11
0
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('\\', '/')

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

            match = regex_static.match(regex_space.sub('_', path))
            if match and 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
            # ##################################################

            path = re.sub('%20', ' ', path)
            match = regex_url.match(path)
            if not match or match.group('c') == 'static':
                raise HTTP(400,
                           rewrite.params.error_message,
                           web2py_error='invalid path')

            request.application = \
                regex_space.sub('_', match.group('a') or 'init')
            request.controller = \
                regex_space.sub('_', match.group('c') or 'default')
            request.function = \
                regex_space.sub('_', match.group('f') or 'index')
            group_e = match.group('e')
            raw_extension = group_e and regex_space.sub('_', group_e) or None
            request.extension = raw_extension or 'html'
            request.raw_args = match.group('r')
            request.args = List([])
            if request.application in rewrite.params.routes_apps_raw:
                # application is responsible for parsing args
                request.args = None
            elif request.raw_args:
                match = regex_args.match(request.raw_args)
                if match:
                    group_s = match.group('s')
                    request.args = \
                        List((group_s and group_s.split('/')) or [])
                else:
                    raise HTTP(400,
                               rewrite.params.error_message,
                               web2py_error='invalid path')
            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 request.application == 'init':
                    request.application = 'welcome'
                    redirect(URL(r=request))
                elif rewrite.params.error_handler:
                    redirect(
                        URL(rewrite.params.error_handler['application'],
                            rewrite.params.error_handler['controller'],
                            rewrite.params.error_handler['function'],
                            args=request.application))
                else:
                    raise HTTP(400,
                               rewrite.params.error_message,
                               web2py_error='invalid application')
            request.url = URL(r=request,
                              args=request.args,
                              extension=raw_extension)

            # ##################################################
            # 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

            # ##################################################
            # try load session or create new session file
            # ##################################################

            session.connect(request, response)

            # ##################################################
            # set no-cache headers
            # ##################################################

            response.headers['Content-Type'] = contenttype('.' +
                                                           request.extension)
            response.headers['Cache-Control'] = \
                'no-store, no-cache, must-revalidate, post-check=0, pre-check=0'
            response.headers['Expires'] = \
                time.strftime('%a, %d %b %Y %H:%M:%S GMT', time.gmtime())
            response.headers['Pragma'] = 'no-cache'

            # ##################################################
            # run controller
            # ##################################################

            serve_controller(request, response, session)

        except HTTP, http_response:

            if request.body:
                request.body.close()

            # ##################################################
            # on success, try store session in database
            # ##################################################
            session._try_store_in_db(request, response)

            # ##################################################
            # on success, commit database
            # ##################################################

            if response._custom_commit:
                response._custom_commit()
            else:
                BaseAdapter.close_all_instances(BaseAdapter.commit)

            # ##################################################
            # if session not in db try store session on filesystem
            # this must be done after trying to commit database!
            # ##################################################

            session._try_store_on_disk(request, response)

            # ##################################################
            # store cookies in headers
            # ##################################################

            if session._forget:
                del response.cookies[response.session_id_name]
            elif session._secure:
                response.cookies[response.session_id_name]['secure'] = True
            if len(response.cookies) > 0:
                http_response.headers['Set-Cookie'] = \
                    [str(cookie)[11:] for cookie in response.cookies.values()]
            ticket = None
Пример #12
0
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))

            # ## parse GET vars, even if POST

            dget = cgi.parse_qsl(request.env.query_string, keep_blank_values=1)
            for (key, value) in dget:
                if request.vars.has_key(key):
                    if isinstance(request.vars[key], list):
                        request.vars[key].append(value)
                    else:
                        request.vars[key] = [request.vars[key], value]
                else:
                    request.vars[key] = value
                request.get_vars[key] = request.vars[key]

            # ## parse POST vars if any

            if request.env.request_method in ['POST', 'BOTH']:
                dpost = cgi.FieldStorage(fp=request.body,
                                         environ=environ,
                                         keep_blank_values=1)
                request.body.seek(0)
                try:
                    keys = dpost.keys()
                except TypeError:
                    keys = []
                for key in keys:
                    dpk = dpost[key]
                    if isinstance(dpk, list):
                        value = [x.value for x in dpk]
                    elif not dpk.filename:
                        value = dpk.value
                    else:
                        value = dpk
                    request.post_vars[key] = request.vars[key] = value

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

            request.cookies = Cookie.SimpleCookie()
            response.cookies = Cookie.SimpleCookie()
            if request.env.http_cookie:
                request.cookies.load(request.env.http_cookie)

            # ##################################################
            # try load session or create new session file
            # ##################################################

            session.connect(request, response)

            # ##################################################
            # set no-cache headers
            # ##################################################

            response.headers['Cache-Control'] = \
                'no-store, no-cache, must-revalidate, post-check=0, pre-check=0'
            response.headers['Expires'] = \
                time.strftime('%a, %d %b %Y %H:%M:%S GMT',
                              time.gmtime())
            response.headers['Pragma'] = 'no-cache'

            # ##################################################
            # run controller
            # ##################################################

            if not items[1] == 'static':
                serve_controller(request, response, session)
        except HTTP, http_response:

            # ##################################################
            # on sucess, try store session in database
            # ##################################################

            session._try_store_in_db(request, response)

            # ##################################################
            # on sucess, committ database
            # ##################################################

            if response._custom_commit:
                response._custom_commit()
            else:
                SQLDB.close_all_instances(SQLDB.commit)

            # ##################################################
            # if session not in db try store session on filesystem
            # ##################################################

            session._try_store_on_disk(request, response)

            # ##################################################
            # store cookies in headers
            # ##################################################

            if session._secure:
                response.cookies[response.session_id_name]['secure'] = \
                    True
            http_response.headers['Set-Cookie'] = [
                str(cookie)[11:] for cookie in response.cookies.values()
            ]

            # ##################################################
            # whatever happens return the intended HTTP response
            # ##################################################

            session._unlock(response)
            return http_response.to(responder)
        except RestrictedError, e:

            # ##################################################
            # on application error, rollback database
            # ##################################################

            if response._custom_rollback:
                response._custom_rollback()
            else:
                SQLDB.close_all_instances(SQLDB.rollback)
            try:
                ticket = e.log(request)
            except:
                ticket = 'unknown'
                logging.error(e.traceback)
            session._unlock(response)
            http_error_status = check_error_route(500, items[0])
            return HTTP(http_error_status,
                        error_message_ticket % dict(ticket=ticket),
                        web2py_error='ticket %s' % ticket).to(responder)
Пример #13
0
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.thread.routes.routes_in:
        environ = rewrite.filter_in(environ)

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

                # ##################################################
                # try load session or create new session file
                # ##################################################

                session.connect(request, response)

                # ##################################################
                # set no-cache headers
                # ##################################################

                response.headers['Content-Type'] = contenttype(
                    '.' + request.extension)
                response.headers['Cache-Control'] = \
                    'no-store, no-cache, must-revalidate, post-check=0, pre-check=0'
                response.headers['Expires'] = \
                    time.strftime('%a, %d %b %Y %H:%M:%S GMT', time.gmtime())
                response.headers['Pragma'] = 'no-cache'

                # ##################################################
                # run controller
                # ##################################################

                serve_controller(request, response, session)

            except HTTP, http_response:
                if static_file:
                    return http_response.to(responder)

                if request.body:
                    request.body.close()

                # ##################################################
                # on success, try store session in database
                # ##################################################
                session._try_store_in_db(request, response)

                # ##################################################
                # on success, commit database
                # ##################################################

                if response._custom_commit:
                    response._custom_commit()
                else:
                    BaseAdapter.close_all_instances(BaseAdapter.commit)

                # ##################################################
                # if session not in db try store session on filesystem
                # this must be done after trying to commit database!
                # ##################################################

                session._try_store_on_disk(request, response)

                # ##################################################
                # store cookies in headers
                # ##################################################

                if request.cid:
                    if response.flash and not 'web2py-component-flash' in http_response.headers:
                        http_response.headers['web2py-component-flash'] = \
                            str(response.flash).replace('\n','')
                    if response.js and not 'web2py-component-command' in http_response.headers:
                        http_response.headers['web2py-component-command'] = \
                            str(response.js).replace('\n','')
                if session._forget:
                    del response.cookies[response.session_id_name]
                elif session._secure:
                    response.cookies[response.session_id_name]['secure'] = True
                if len(response.cookies) > 0:
                    http_response.headers['Set-Cookie'] = \
                        [str(cookie)[11:] for cookie in response.cookies.values()]
                ticket = None

            except RestrictedError, e:

                if request.body:
                    request.body.close()

                # ##################################################
                # on application error, rollback database
                # ##################################################

                ticket = e.log(request) or 'unknown'
                if response._custom_rollback:
                    response._custom_rollback()
                else:
                    BaseAdapter.close_all_instances(BaseAdapter.rollback)

                http_response = \
                    HTTP(500,
                         rewrite.thread.routes.error_message_ticket % dict(ticket=ticket),
                         web2py_error='ticket %s' % ticket)
Пример #14
0
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)