ej ~dZddlZddlZddlZddlZddlZddlZddl Z ddl m Z Gddej j ZdS)z8Utilities for using Motor with Tornado web applications.N) _hash_gridoutc:eZdZdZd dZdZd dZdZdZd Z d S) GridFSHandlera\A handler that can serve content from GridFS, very similar to :class:`tornado.web.StaticFileHandler`. .. code-block:: python db = motor.MotorClient().my_database application = web.Application([ (r"/static/(.*)", web.GridFSHandler, {"database": db}), ]) By default, requests' If-Modified-Since headers are honored, but no specific cache-control timeout is sent to clients. Thus each request for a GridFS file requires a quick check of the file's ``uploadDate`` in MongoDB. Override :meth:`get_cache_time` in a subclass to customize this. fsc"||_||_dS)N)databaseroot_collection)selfrr s M/var/www/app.qaans.com/backend/venv/lib/python3.11/site-packages/motor/web.py initializezGridFSHandler.initialize6s  .c,||S)a#Overridable method to choose a GridFS file to serve at a URL. By default, if a URL pattern like ``"/static/(.*)"`` is mapped to this ``GridFSHandler``, then the trailing portion of the URL is used as the filename, so a request for "/static/image.png" results in a call to :meth:`MotorGridFSBucket.open_download_stream_by_name` with "image.png" as the ``filename`` argument. To customize the mapping of path to GridFS file, override ``get_gridfs_file`` and return a Future :class:`~motor.MotorGridOut` from it. For example, to retrieve the file by ``_id`` instead of filename:: class CustomGridFSHandler(motor.web.GridFSHandler): def get_gridfs_file(self, bucket, filename, request): # Path is interpreted as _id instead of name. # Return a Future MotorGridOut. return fs.open_download_stream(file_id=ObjectId(path)) :Parameters: - `bucket`: A :class:`~motor.motor_tornado.MotorGridFSBucket` - `filename`: A string, the matched group of the URL pattern - `request`: An :class:`tornado.httputil.HTTPServerRequest` .. versionchanged:: 1.0 **BREAKING CHANGE**: Now takes a :class:`~motor.motor_tornado.MotorGridFSBucket`, not a ``MotorGridFS``. Also takes an additional ``request`` parameter. .. versionchanged:: 0.2 ``get_gridfs_file`` no longer accepts a callback, instead returns a Future. )open_download_stream_by_name)r bucketfilenamerequests r get_gridfs_filezGridFSHandler.get_gridfs_file:sD228<<> OO8,33558JS]8^8^8^^    OOOZ#j//-I J J J J OOOX 6 6 6 tW---L(,,-@AA  ..y99J (66t{:7N7NOOWWXH8##$$$|#''88   38 ; ; OOC F ('.999  2++D11 1 1 1 1 1 1 1 s "A/A5c0||dS)NF)r=)r0)r r<s r headzGridFSHandler.headsxx5x111r cdS)zOverride to customize cache control behavior. Return a positive number of seconds to trigger aggressive caching or 0 to mark resource as cacheable, only. 0 is the default. r)r r<r?rAs r r)zGridFSHandler.get_cache_times qr cdS)z1For subclass to add extra headers to the responseNrK)r r<r>s r r.zGridFSHandler.set_extra_headerss r N)r)T) __name__ __module__ __qualname____doc__r rr0rIr)r.rKr r rr%s ////"="="=HDDDDL222     r r)rPr* email.utilsr1r'r5r tornado.webr rmotor.motor_gridfsrr!RequestHandlerrrKr r rUs?>  ,,,,,,M M M M M GK.M M M M M r