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� ?I�Qc @� s� d Z d d l m Z d d l Z d d l m Z d d l m Z d d l m Z m Z d d l m Z d d l m Z m Z d e f d � � YZ d � Z d � Z d � Z d � Z d e f d � � YZ d e f d � � YZ d S( s� flask.ctx ~~~~~~~~~ Implements the objects required to keep the context. :copyright: (c) 2011 by Armin Ronacher. :license: BSD, see LICENSE for more details. i����( t with_statementN( t update_wrapper( t HTTPExceptioni ( t _request_ctx_stackt _app_ctx_stack( t blueprint_is_module( t appcontext_pushedt appcontext_poppedt _AppCtxGlobalsc B� s5 e Z d Z d d � Z d � Z d � Z d � Z RS( s A plain object.c C� s | j j | | � S( N( t __dict__t get( t selft namet default( ( s8 /opt/imh-python/lib/python2.7/site-packages/flask/ctx.pyR s c C� s | | j k S( N( R ( R t item( ( s8 /opt/imh-python/lib/python2.7/site-packages/flask/ctx.pyt __contains__ s c C� s t | j � S( N( t iterR ( R ( ( s8 /opt/imh-python/lib/python2.7/site-packages/flask/ctx.pyt __iter__! s c C� s0 t j } | d k r# d | j j St j | � S( Ns <flask.g of %r>( R t topt Nonet appR t objectt __repr__( R R ( ( s8 /opt/imh-python/lib/python2.7/site-packages/flask/ctx.pyR $ s N( t __name__t __module__t __doc__R R R R R ( ( ( s8 /opt/imh-python/lib/python2.7/site-packages/flask/ctx.pyR s c C� s t j j j | � | S( s� Executes a function after this request. This is useful to modify response objects. The function is passed the response object and has to return the same or a new one. Example:: @app.route('/') def index(): @after_this_request def add_header(response): response.headers['X-Foo'] = 'Parachute' return response return 'Hello World!' This is more useful if a function other than the view function wants to modify a response. For instance think of a decorator that wants to add some headers without converting the return value into a response object. .. versionadded:: 0.9 ( R R t _after_request_functionst append( t f( ( s8 /opt/imh-python/lib/python2.7/site-packages/flask/ctx.pyt after_this_request+ s c � sO t j } | d k r$ t d � � n | j � � � � f d � } t | � � S( s� A helper function that decorates a function to retain the current request context. This is useful when working with greenlets. The moment the function is decorated a copy of the request context is created and then pushed when the function is called. Example:: import gevent from flask import copy_current_request_context @app.route('/') def index(): @copy_current_request_context def do_some_work(): # do some work here, it can access flask.request like you # would otherwise in the view function. ... gevent.spawn(do_some_work) return 'Regular response' .. versionadded:: 0.10 s| This decorator can only be used at local scopes when a request context is on the stack. For instance within view functions.c � s � � � | | � SWd QXd S( N( ( t argst kwargs( R t reqctx( s8 /opt/imh-python/lib/python2.7/site-packages/flask/ctx.pyt wrappera s N( R R R t RuntimeErrort copyR ( R R R! ( ( R R s8 /opt/imh-python/lib/python2.7/site-packages/flask/ctx.pyt copy_current_request_contextD s c C� s t j d k S( s� If you have code that wants to test if a request context is there or not this function can be used. For instance, you may want to take advantage of request information if the request object is available, but fail silently if it is unavailable. :: class User(db.Model): def __init__(self, username, remote_addr=None): self.username = username if remote_addr is None and has_request_context(): remote_addr = request.remote_addr self.remote_addr = remote_addr Alternatively you can also just test any of the context bound objects (such as :class:`request` or :class:`g` for truthness):: class User(db.Model): def __init__(self, username, remote_addr=None): self.username = username if remote_addr is None and request: remote_addr = request.remote_addr self.remote_addr = remote_addr .. versionadded:: 0.7 N( R R R ( ( ( s8 /opt/imh-python/lib/python2.7/site-packages/flask/ctx.pyt has_request_contextg s c C� s t j d k S( s� Works like :func:`has_request_context` but for the application context. You can also just do a boolean check on the :data:`current_app` object instead. .. versionadded:: 0.9 N( R R R ( ( ( s8 /opt/imh-python/lib/python2.7/site-packages/flask/ctx.pyt has_app_context� s t AppContextc B� s> e Z d Z d � Z d � Z d d � Z d � Z d � Z RS( s] The application context binds an application object implicitly to the current thread or greenlet, similar to how the :class:`RequestContext` binds request information. The application context is also implicitly created if a request context is created but the application is not on top of the individual application context. c C� s7 | | _ | j d � | _ | j � | _ d | _ d S( Ni ( R t create_url_adapterR t url_adaptert app_ctx_globals_classt gt _refcnt( R R ( ( s8 /opt/imh-python/lib/python2.7/site-packages/flask/ctx.pyt __init__� s c C� s0 | j d 7_ t j | � t j | j � d S( s- Binds the app context to the current context.i N( R, R t pushR t sendR ( R ( ( s8 /opt/imh-python/lib/python2.7/site-packages/flask/ctx.pyR. � s c C� sp | j d 8_ | j d k rP | d k r= t j � d } n | j j | � n t j � } t j | j � d S( s Pops the app context.i i N( R, R t syst exc_infoR t do_teardown_appcontextR t popR R/ ( R t exct rv( ( s8 /opt/imh-python/lib/python2.7/site-packages/flask/ctx.pyR3 � s c C� s | j � | S( N( R. ( R ( ( s8 /opt/imh-python/lib/python2.7/site-packages/flask/ctx.pyt __enter__� s c C� s | j | � d S( N( R3 ( R t exc_typet exc_valuet tb( ( s8 /opt/imh-python/lib/python2.7/site-packages/flask/ctx.pyt __exit__� s N( R R R R- R. R R3 R6 R: ( ( ( s8 /opt/imh-python/lib/python2.7/site-packages/flask/ctx.pyR' � s t RequestContextc B� s� e Z d Z d d � Z d � Z d � Z e e e � Z [ [ d � Z d � Z d � Z d d � Z d � Z d � Z d � Z d � Z RS( s� The request context contains all request relevant information. It is created at the beginning of the request and pushed to the `_request_ctx_stack` and removed at the end of it. It will create the URL adapter and request object for the WSGI environment provided. Do not attempt to use this class directly, instead use :meth:`~flask.Flask.test_request_context` and :meth:`~flask.Flask.request_context` to create this object. When the request context is popped, it will evaluate all the functions registered on the application for teardown execution (:meth:`~flask.Flask.teardown_request`). The request context is automatically popped at the end of the request for you. In debug mode the request context is kept around if exceptions happen so that interactive debuggers have a chance to introspect the data. With 0.4 this can also be forced for requests that did not fail and outside of `DEBUG` mode. By setting ``'flask._preserve_context'`` to `True` on the WSGI environment the context will not pop itself at the end of the request. This is used by the :meth:`~flask.Flask.test_client` for example to implement the deferred cleanup functionality. You might find this helpful for unittests where you need the information from the context local around for a little longer. Make sure to properly :meth:`~werkzeug.LocalStack.pop` the stack yourself in that situation, otherwise your unittests will leak memory. c C� s� | | _ | d k r' | j | � } n | | _ | j | j � | _ d | _ d | _ g | _ t | _ d | _ g | _ | j � | j j } | d k r� | j j | � } | d k r� t | � r� t | j _ q� n d S( N( R R t request_classt requestR( R) t flashest sessiont _implicit_app_ctx_stackt Falset preservedt _preserved_excR t match_requestt blueprintt blueprintsR R t Truet _is_old_module( R R t environR= RE t bp( ( s8 /opt/imh-python/lib/python2.7/site-packages/flask/ctx.pyR- � s" c C� s t j j S( N( R R R+ ( R ( ( s8 /opt/imh-python/lib/python2.7/site-packages/flask/ctx.pyt _get_g s c C� s | t j _ d S( N( R R R+ ( R t value( ( s8 /opt/imh-python/lib/python2.7/site-packages/flask/ctx.pyt _set_g s c C� s% | j | j d | j j d | j �S( sr Creates a copy of this request context with the same request object. This can be used to move a request context to a different greenlet. Because the actual request object is the same this cannot be used to move a request context to a different thread unless access to the request object is locked. .. versionadded:: 0.10 RI R= ( t __class__R R= RI ( R ( ( s8 /opt/imh-python/lib/python2.7/site-packages/flask/ctx.pyR# s c C� sW y1 | j j d t � \ } | j _ | | j _ Wn t k rR } | | j _ n Xd S( sZ Can be overridden by a subclass to hook into the matching of the request. t return_ruleN( R) t matchRG R= t view_argst url_ruleR t routing_exception( R RR t e( ( s8 /opt/imh-python/lib/python2.7/site-packages/flask/ctx.pyRD s !c C� s� t j } | d k r1 | j r1 | j | j � n t j } | d k sX | j | j k r� | j j � } | j � | j j | � n | j j d � t j | � | j j | j � | _ | j d k r� | j j � | _ n d S( s1 Binds the request context to the current context.N( R R R RB R3 RC R R t app_contextR. R@ R t open_sessionR= R? t make_null_session( R R t app_ctx( ( s8 /opt/imh-python/lib/python2.7/site-packages/flask/ctx.pyR. # s c C� s� | j j � } t } | j s� t | _ d | _ | d k rO t j � d } n | j j | � t t d � r{ t j � n t | j d d � } | d k r� | � n t } n t j � } | r� d | j j d <n | d k r� | j | � n d S( s Pops the request context and unbinds it by doing that. This will also trigger the execution of functions registered by the :meth:`~flask.Flask.teardown_request` decorator. .. versionchanged:: 0.9 Added the `exc` argument. i t exc_cleart closes werkzeug.requestN( R@ R3 RA RB R RC R0 R1 R t do_teardown_requestt hasattrRY t getattrR= RG R RI ( R R4 RX t clear_requestt request_closeR5 ( ( s8 /opt/imh-python/lib/python2.7/site-packages/flask/ctx.pyR3 E s& c C� sS | j j j d � s- | d k rB | j j rB t | _ | | _ n | j | � d S( Ns flask._preserve_context( R= RI R R R t preserve_context_on_exceptionRG RB RC R3 ( R R4 ( ( s8 /opt/imh-python/lib/python2.7/site-packages/flask/ctx.pyt auto_popp s c C� s | j � | S( N( R. ( R ( ( s8 /opt/imh-python/lib/python2.7/site-packages/flask/ctx.pyR6 x s c C� s | j | � d S( N( Ra ( R R7 R8 R9 ( ( s8 /opt/imh-python/lib/python2.7/site-packages/flask/ctx.pyR: | s c C� s, d | j j | j j | j j | j j f S( Ns <%s '%s' [%s] of %s>( RN R R= t urlt methodR R ( R ( ( s8 /opt/imh-python/lib/python2.7/site-packages/flask/ctx.pyR � s N( R R R R R- RK RM t propertyR+ R# RD R. R3 Ra R6 R: R ( ( ( s8 /opt/imh-python/lib/python2.7/site-packages/flask/ctx.pyR; � s ( " + ( R t __future__R R0 t functoolsR t werkzeug.exceptionsR t globalsR R t moduleR t signalsR R R R R R$ R% R& R' R; ( ( ( s8 /opt/imh-python/lib/python2.7/site-packages/flask/ctx.pyt <module> s # ,
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