Current File : //usr/lib64/python2.7/site-packages/tornado/web.pyc
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features that allow it to scale to large numbers of open connections,
making it ideal for `long polling
<http://en.wikipedia.org/wiki/Push_technology#Long_polling>`_.
Here is a simple "Hello, world" example app:
.. testcode::
import tornado.ioloop
import tornado.web
class MainHandler(tornado.web.RequestHandler):
def get(self):
self.write("Hello, world")
if __name__ == "__main__":
application = tornado.web.Application([
(r"/", MainHandler),
])
application.listen(8888)
tornado.ioloop.IOLoop.current().start()
.. testoutput::
:hide:
See the :doc:`guide` for additional information.
Thread-safety notes
-------------------
In general, methods on `RequestHandler` and elsewhere in Tornado are
not thread-safe. In particular, methods such as
`~RequestHandler.write()`, `~RequestHandler.finish()`, and
`~RequestHandler.flush()` must only be called from the main thread. If
you use multiple threads it is important to use `.IOLoop.add_callback`
to transfer control back to the main thread before finishing the
request.
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Subclasses must define at least one of the methods defined in the
"Entry points" section below.
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Hook for subclass initialization.
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Example::
class ProfileHandler(RequestHandler):
def initialize(self, database):
self.database = database
def get(self, username):
...
app = Application([
(r'/user/(.*)', ProfileHandler, dict(database=database)),
])
N( ( R& ( ( s1 /usr/lib64/python2.7/site-packages/tornado/web.pyR@ � s c C� s
| j j S( s@ An alias for `self.application.settings <Application.settings>`.( R+ t settings( R& ( ( s1 /usr/lib64/python2.7/site-packages/tornado/web.pyRB � s c O� s t d � � d S( Ni� ( t HTTPError( R& t argsRA ( ( s1 /usr/lib64/python2.7/site-packages/tornado/web.pyt head� s c O� s t d � � d S( Ni� ( RC ( R& RD RA ( ( s1 /usr/lib64/python2.7/site-packages/tornado/web.pyt get� s c O� s t d � � d S( Ni� ( RC ( R& RD RA ( ( s1 /usr/lib64/python2.7/site-packages/tornado/web.pyt post� s c O� s t d � � d S( Ni� ( RC ( R& RD RA ( ( s1 /usr/lib64/python2.7/site-packages/tornado/web.pyt delete� s c O� s t d � � d S( Ni� ( RC ( R& RD RA ( ( s1 /usr/lib64/python2.7/site-packages/tornado/web.pyt patch� s c O� s t d � � d S( Ni� ( RC ( R& RD RA ( ( s1 /usr/lib64/python2.7/site-packages/tornado/web.pyt put� s c O� s t d � � d S( Ni� ( RC ( R& RD RA ( ( s1 /usr/lib64/python2.7/site-packages/tornado/web.pyt options� s c C� s d S( s Called at the beginning of a request before `get`/`post`/etc.
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or `.return_future` to make it asynchronous (the
`asynchronous` decorator cannot be used on `prepare`).
If this method returns a `.Future` execution will not proceed
until the `.Future` is done.
.. versionadded:: 3.1
Asynchronous support.
N( ( R& ( ( s1 /usr/lib64/python2.7/site-packages/tornado/web.pyt prepare� s c C� s d S( s Called after the end of a request.
Override this method to perform cleanup, logging, etc.
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N( ( R& ( ( s1 /usr/lib64/python2.7/site-packages/tornado/web.pyt on_finish� s c C� sT t | j � rP | j j j � sP | j j j t j � � | j j j � qP n d S( sF Called in async handlers if the client closed the connection.
Override this to clean up resources associated with
long-lived connections. Note that this method is called only if
the connection was closed during asynchronous processing; if you
need to do cleanup after every request override `on_finish`
instead.
Proxies may keep a connection open for a time (perhaps
indefinitely) after the client has gone away, so this method
may not be called promptly after the end user closes their
connection.
N( t _has_stream_request_bodyt __class__R, t bodyt donet
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c C� s d S( sB Override this to set HTTP headers at the beginning of the request.
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N( ( R& ( ( s1 /usr/lib64/python2.7/site-packages/tornado/web.pyR] # s c C� se | | _ | d k r* t j | � | _ n7 y t j | | _ Wn t k
r` t d | � � n Xd S( s� Sets the status code for our response.
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get_status? s c C� s | j | � | j | <d S( s Sets the given response header name and value.
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N( t _convert_header_valueR\ ( R& t namet value( ( s1 /usr/lib64/python2.7/site-packages/tornado/web.pyt
set_headerC s c C� s | j j | | j | � � d S( s� Adds the given response header and value.
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add_headerL s c C� s | | j k r | j | =n d S( s� Clears an outgoing header, undoing a previous `set_header` call.
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c C� s | j | | | j j | � S( s\ Returns the value of the argument with the given name.
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last value.
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( t
_get_argumentR, t arguments( R& Rj t defaultt strip( ( s1 /usr/lib64/python2.7/site-packages/tornado/web.pyt get_argumentu s c C� s. t | t � s t � | j | | j j | � S( s� Returns a list of the arguments with the given name.
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If the argument appears in the url more than once, we return the
last value.
The returned value is always unicode.
.. versionadded:: 3.2
( R{ R, t body_arguments( R& Rj R} R~ ( ( s1 /usr/lib64/python2.7/site-packages/tornado/web.pyt get_body_argument� s c C� s | j | | j j | � S( s� Returns a list of the body arguments with the given name.
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.. versionadded:: 3.2
( R� R, R� ( R& Rj R~ ( ( s1 /usr/lib64/python2.7/site-packages/tornado/web.pyt get_body_arguments� s c C� s | j | | | j j | � S( s� Returns the value of the argument with the given name
from the request query string.
If default is not provided, the argument is considered to be
required, and we raise a `MissingArgumentError` if it is missing.
If the argument appears in the url more than once, we return the
last value.
The returned value is always unicode.
.. versionadded:: 3.2
( R{ R, t query_arguments( R& Rj R} R~ ( ( s1 /usr/lib64/python2.7/site-packages/tornado/web.pyt get_query_argument� s c C� s | j | | j j | � S( s� Returns a list of the query arguments with the given name.
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.. versionadded:: 3.2
( R� R, R� ( R& Rj R~ ( ( s1 /usr/lib64/python2.7/site-packages/tornado/web.pyt get_query_arguments� s c C� sH | j | | d | �} | s@ | | j k r< t | � � n | S| d S( NR~ i����( R� t _ARG_DEFAULTt MissingArgumentError( R& Rj R} t sourceR~ RD ( ( s1 /usr/lib64/python2.7/site-packages/tornado/web.pyR{ � s c C� s� g } xx | j | g � D]d } | j | d | �} t | t � r[ t j j d | � } n | rp | j � } n | j | � q W| S( NRj t ( RF t decode_argumentRp R R t _remove_control_chars_regext subR~ t append( R& Rj R� R~ t valuest v( ( s1 /usr/lib64/python2.7/site-packages/tornado/web.pyR� � s c C� sI y t | � SWn4 t k
rD t d d | p0 d | d f � � n Xd S( s Decodes an argument from the request.
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a unicode string, but this may be overridden in subclasses.
This method is used as a filter for both `get_argument()` and for
values extracted from the url and passed to `get()`/`post()`/etc.
The name of the argument is provided if known, but may be None
(e.g. for unnamed groups in the url regex).
i� s Invalid unicode in %s: %rt urli( N( R t UnicodeDecodeErrorRC ( R& Rk Rj ( ( s1 /usr/lib64/python2.7/site-packages/tornado/web.pyR� � s
c C� s
| j j S( sR An alias for
`self.request.cookies <.httputil.HTTPServerRequest.cookies>`.( R, t cookies( R& ( ( s1 /usr/lib64/python2.7/site-packages/tornado/web.pyR� � s c C� s9 | j j d k r5 | | j j k r5 | j j | j S| S( s? Gets the value of the cookie with the given name, else default.N( R, R� R2 Rk ( R& Rj R} ( ( s1 /usr/lib64/python2.7/site-packages/tornado/web.pyt
get_cookie� s $t /c K� st t j | � } t j | � } t j d | | � rM t d | | f � � n t | d � sn t j � | _ n | | j k r� | j | =n | | j | <| j | } | r� | | d <n | d k r� | r� t
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for available attributes.
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set_cookie� s2
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C� sH t j j � t j d d � } | j | d d d | d | d | �d S( s; Deletes the cookie with the given name.
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was set (but there is no way to find out on the server side
which values were used for a given cookie).
R� im Rk t R� R� R� N( Rv R� R� R� ( R& Rj R� R� R� ( ( s1 /usr/lib64/python2.7/site-packages/tornado/web.pyt clear_cookie& s c C� s4 x- | j j D] } | j | d | d | �q
Wd S( s� Deletes all the cookies the user sent with this request.
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parameters.
.. versionchanged:: 3.2
Added the ``path`` and ``domain`` parameters.
R� R� N( R, R� R� ( R& R� R� Rj ( ( s1 /usr/lib64/python2.7/site-packages/tornado/web.pyt clear_all_cookies2 s
i c K� s/ | j | | j | | d | �d | | �d S( s Signs and timestamps a cookie so it cannot be forged.
You must specify the ``cookie_secret`` setting in your Application
to use this method. It should be a long, random sequence of bytes
to be used as the HMAC secret for the signature.
To read a cookie set with this method, use `get_secure_cookie()`.
Note that the ``expires_days`` parameter sets the lifetime of the
cookie in the browser, but is independent of the ``max_age_days``
parameter to `get_secure_cookie`.
Secure cookies may contain arbitrary byte values, not just unicode
strings (unlike regular cookies)
.. versionchanged:: 3.2.1
Added the ``version`` argument. Introduced cookie version 2
and made it the default.
RY R� N( R� t create_signed_value( R& Rj Rk R� RY RA ( ( s1 /usr/lib64/python2.7/site-packages/tornado/web.pyt set_secure_cookie? s c C� s� | j d d � | j j d } d } t | t � rr | j j j d � d k r_ t d � � n | j j d } n t | | | d | d | �S( s� Signs and timestamps a string so it cannot be forged.
Normally used via set_secure_cookie, but provided as a separate
method for non-cookie uses. To decode a value not stored
as a cookie use the optional value argument to get_secure_cookie.
.. versionchanged:: 3.2.1
Added the ``version`` argument. Introduced cookie version 2
and made it the default.
t
cookie_secrets secure cookiest key_versions5 key_version setting must be used for secret_key dictsRY N( t require_settingR+ RB R2 Rp t dictRF t ExceptionR� ( R& Rj Rk RY t secretR� ( ( s1 /usr/lib64/python2.7/site-packages/tornado/web.pyR� Y s i c C� sT | j d d � | d k r. | j | � } n t | j j d | | d | d | �S( sK Returns the given signed cookie if it validates, or None.
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`get_cookie`).
.. versionchanged:: 3.2.1
Added the ``min_version`` argument. Introduced cookie version 2;
both versions 1 and 2 are accepted by default.
R� s secure cookiest max_age_dayst min_versionN( R� R2 R� t decode_signed_valueR+ RB ( R& Rj Rk R� R� ( ( s1 /usr/lib64/python2.7/site-packages/tornado/web.pyt get_secure_cookiep s c C� s8 | j d d � | d k r. | j | � } n t | � S( sg Returns the signing key version of the secure cookie.
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R� s secure cookiesN( R� R2 R� t get_signature_key_version( R& Rj Rk ( ( s1 /usr/lib64/python2.7/site-packages/tornado/web.pyt get_secure_cookie_key_version� s c C� s� | j r t d � � n | d k r9 | r0 d n d } n1 t | t � rd d | k o_ d k n sj t � | j | � | j d t | � � | j � d S( s: Sends a redirect to the given (optionally relative) URL.
If the ``status`` argument is specified, that value is used as the
HTTP status code; otherwise either 301 (permanent) or 302
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s/ Cannot redirect after headers have been writteni- i. i, i� t LocationN(
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| � d S( s� Writes the given chunk to the output buffer.
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the Content-Type of the response to be ``application/json``.
(if you want to send JSON as a different ``Content-Type``, call
set_header *after* calling write()).
Note that lists are not converted to JSON because of a potential
cross-site security vulnerability. All JSON output should be
wrapped in a dictionary. More details at
http://haacked.com/archive/2009/06/25/json-hijacking.aspx/ and
https://github.com/facebook/tornado/issues/1009
s Cannot write() after finish()s5 write() only accepts bytes, unicode, and dict objectss| . Lists not accepted for security reasons; see http://www.tornadoweb.org/en/stable/web.html#tornado.web.RequestHandler.writes Content-Types application/json; charset=UTF-8N( R/ t RuntimeErrorRp Rq R R� t listRw R t json_encodeRl R R^ R� ( R& t chunkt message( ( s1 /usr/lib64/python2.7/site-packages/tornado/web.pyt write� s
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j � } | rO | j t | � � qO qO Wd � } | rHg } t � } xU | D]M } | | � s�| j | � } n | | k r�| j | � | j | � q�q�Wd j d � | D� � } | j d � } | | t | � d | | } n | r�d d j | � d } | j d � } | | | d | | } n | rIg } t � } xU | D]M } | | � s�| j | � } n | | k r�| j | � | j | � q�q�Wd j d � | D� � } | j d
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S( s> Renders the template with the given arguments as the response.t _active_modulesc � s# t � f d � d d d g D� � S( Nc 3� s | ] } � j | � Vq d S( N( t
startswith( R# t x( R� ( s1 /usr/lib64/python2.7/site-packages/tornado/web.pys <genexpr>� s R� s http:s https:( t any( R� ( ( R� s1 /usr/lib64/python2.7/site-packages/tornado/web.pyt is_absolute� s R� c s� s& | ] } d t j | � d Vq d S( s
<script src="s" " type="text/javascript"></script>N( R t xhtml_escape( R# t p( ( s1 /usr/lib64/python2.7/site-packages/tornado/web.pys <genexpr>� s s </body>s
s, <script type="text/javascript">
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</script>c s� s& | ] } d t j | � d Vq d S( s <link href="s$ " type="text/css" rel="stylesheet"/>N( R R� ( R# R� ( ( s1 /usr/lib64/python2.7/site-packages/tornado/web.pys <genexpr> s s </head>s <style type="text/css">
s
</style>N( t
render_stringt getattrR� t embedded_javascriptR� R t javascript_filesRp R Rq t extendt embedded_csst css_filest html_headt html_bodyt sett
static_urlRm t joint rindext indexR� ( R& t
template_nameRA t htmlt js_embedt js_filest css_embedR� t
html_headst html_bodiest modulet
embed_partt file_partt head_partt body_partR� t pathst unique_pathsR� t jst sloct csst hloc( ( s1 /usr/lib64/python2.7/site-packages/tornado/web.pyt render� s�
#
# &&c K� s� | j � } | sj t j d � } | j j } x | j j | k rN | j } q0 Wt j j | j j � } n t j
�@ | t j k r� | j | � } | t j | <n
t j | } Wd QX| j
| � } | j � } | j | � | j | � S( s� Generate the given template with the given arguments.
We return the generated byte string (in utf8). To generate and
write a template as a response, use render() above.
i N( t get_template_patht syst _getframet f_codet co_filenamet f_backt osR� t dirnameR t _template_loader_lockt _template_loaderst create_template_loadert loadt get_template_namespacet updatet generate( R& R� RA t
template_patht framet web_filet loadert tt namespace( ( s1 /usr/lib64/python2.7/site-packages/tornado/web.pyR� s
c C� sq t d | d | j d | j d | j d | j j d | j j d | j d | j d | j � } | j | j
� | S(
sB Returns a dictionary to be used as the default template namespace.
May be overridden by subclasses to add or modify values.
The results of this method will be combined with additional
defaults in the `tornado.template` module and keyword arguments
to `render` or `render_string`.
t handlerR, t current_userR t _t pgettextR� t xsrf_form_htmlt reverse_url( R� R, R R t translateR R� R R
R� R9 ( R& R ( ( s1 /usr/lib64/python2.7/site-packages/tornado/web.pyR� , s c C� sS | j j } d | k r | d Si } d | k rC | d | d <n t j | | � S( s8 Returns a new template loader for the given path.
May be overridden by subclasses. By default returns a
directory-based loader on the given path, using the
``autoescape`` application setting. If a ``template_loader``
application setting is supplied, uses that instead.
t template_loadert
autoescape( R+ RB R t Loader( R& R� RB RA ( ( s1 /usr/lib64/python2.7/site-packages/tornado/web.pyR� C s c C� sz d j | j � } g | _ | j s t | _ x> | j D]3 } | j | j | j | | � \ | _ | _ } q7 W| j j d k r� d } n t | d � r� x3 | j j
� D] } | j d | j d � � q� Wn t j d | j | j � } | j j j | | j | d | �Sx# | j D] } | j | | � } qW| j j d k r\| j j j | d | �St � } | j d � | Sd S( s� Flushes the current output buffer to the network.
The ``callback`` argument, if given, can be used for flow control:
it will be run when all flushed data has been written to the socket.
Note that only one flush callback can be outstanding at a time;
if another flush occurs before the previous flush's callback
has been run, the previous callback will be discarded.
.. versionchanged:: 4.0
Now returns a `.Future` if no callback is given.
R� R R� s
Set-Cookiet callbackN( R� R^ R. R0 R3 t transform_first_chunkR_ R\ R, t methodR2 R� R� R� Rn t OutputStringR t ResponseStartLineRa R= t
write_headerst transform_chunkR� R t
set_result( R& t include_footersR R� t transformt cookiet
start_linet future( ( s1 /usr/lib64/python2.7/site-packages/tornado/web.pyt flushU s2
c C� s~ | j r t d � � n | d k r4 | j | � n | j s| j d k r� | j j d
k r� d | j k r� | j � | j
� r� g | _ | j d � q� n | j d k r� | j s� t
d � � | j � qd | j k rt d � | j D� � } | j d | � qn t | j d
� r7| j j j d � n | j d t � | j j � | j � t | _ | j � d | _ d S( s0 Finishes this response, ending the HTTP request.s finish() called twicei� R R t Etagi0 s Cannot send body with 304s Content-Lengthc s� s | ] } t | � Vq d S( N( Rx ( R# t part( ( s1 /usr/lib64/python2.7/site-packages/tornado/web.pys <genexpr>� s R= R N( R s HEAD( R/ R� R2 R� R. R_ R, R R\ t set_etag_headert check_etag_headerR^ Rg R� t _clear_headers_for_304t sumRl R� R= R> R R0 R� t _logRM R9 ( R& R� t content_length( ( s1 /usr/lib64/python2.7/site-packages/tornado/web.pyR� � s4
i� c K� s | j r[ t j d � | j sW y | j � WqW t k
rS t j d d t �qW Xn d S| j � | j d � } d | k r� | d d } t | t
� r� | j r� | j } q� n | j | d | �y | j
| | � Wn$ t k
rt j d d t �n X| j s| j � n d S( s� Sends the given HTTP error code to the browser.
If `flush()` has already been called, it is not possible to send
an error, so this method will simply terminate the response.
If output has been written but not yet flushed, it will be discarded
and replaced with the error page.
Override `write_error()` to customize the error page that is returned.
Additional keyword arguments are passed through to `write_error`.
s0 Cannot send error response after headers writtens Failed to flush partial responset exc_infoNRf i s! Uncaught exception in write_error( R. R t errorR/ R� R� R0 R< RF Rp RC Rf Rg t write_errorR
( R& Re RA Rf RT ( ( s1 /usr/lib64/python2.7/site-packages/tornado/web.pyt
send_error� s,
c K� s� | j j d � rf d | k rf | j d d � x( t j | d � D] } | j | � qB W| j � n" | j d i | d 6| j d 6� d S( s� Override to implement custom error pages.
``write_error`` may call `write`, `render`, `set_header`, etc
to produce output as usual.
If this error was caused by an uncaught exception (including
HTTPError), an ``exc_info`` triple will be available as
``kwargs["exc_info"]``. Note that this exception may not be
the "current" exception for purposes of methods like
``sys.exc_info()`` or ``traceback.format_exc``.
t serve_tracebackR% s Content-Types
text/plainsS <html><title>%(code)d: %(message)s</title><body>%(code)d: %(message)s</body></html>t codeR� N( RB RF Rl t tracebackt format_exceptionR� R� Ra ( R& Re RA t line( ( s1 /usr/lib64/python2.7/site-packages/tornado/web.pyR' � s
c C� sR t | d � sK | j � | _ | j sK | j � | _ | j sH t � qK n | j S( s^ The locale for the current session.
Determined by either `get_user_locale`, which you can override to
set the locale based on, e.g., a user preference stored in a
database, or `get_browser_locale`, which uses the ``Accept-Language``
header.
.. versionchanged: 4.1
Added a property setter.
t _locale( R� t get_user_localeR. t get_browser_localeR� ( R& ( ( s1 /usr/lib64/python2.7/site-packages/tornado/web.pyR � s c C� s
| | _ d S( N( R. ( R& Rk ( ( s1 /usr/lib64/python2.7/site-packages/tornado/web.pyR s c C� s d S( s Override to determine the locale from the authenticated user.
If None is returned, we fall back to `get_browser_locale()`.
This method should return a `tornado.locale.Locale` object,
most likely obtained via a call like ``tornado.locale.get("en")``
N( R2 ( R& ( ( s1 /usr/lib64/python2.7/site-packages/tornado/web.pyR/ s t en_USc C� s- d | j j k r | j j d j d � } g } x� | D]� } | j � j d � } t | � d k r� | d j d � r� y t | d d � } Wq� t t f k
r� d } q� Xn d } | j | d | f � q8 W| r | j
d
d � d t � g | D] } | d ^ q� } t j
| � Sn t j
| � S(
s� Determines the user's locale from ``Accept-Language`` header.
See http://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html#sec14.4
s Accept-Languaget ,t ;i s q=i g g �?i t keyc S� s | d S( Ni ( ( t pair( ( s1 /usr/lib64/python2.7/site-packages/tornado/web.pyt <lambda>" s t reverse( R, t headerst splitR~ Rx R� t floatRd Rw R� t sortR0 R RF ( R& R} t languagest localest languaget partst scoret lt codes( ( s1 /usr/lib64/python2.7/site-packages/tornado/web.pyR0 s"
%
c C� s( t | d � s! | j � | _ n | j S( ss The authenticated user for this request.
This is a cached version of `get_current_user`, which you can
override to set the user based on, e.g., a cookie. If that
method is not overridden, this method always returns None.
We lazy-load the current user the first time this method is called
and cache the result after that.
t
_current_user( R� t get_current_userRC ( R& ( ( s1 /usr/lib64/python2.7/site-packages/tornado/web.pyR ' s c C� s
| | _ d S( N( RC ( R& Rk ( ( s1 /usr/lib64/python2.7/site-packages/tornado/web.pyR 6 s c C� s d S( s< Override to determine the current user from, e.g., a cookie.N( R2 ( R& ( ( s1 /usr/lib64/python2.7/site-packages/tornado/web.pyRD : s c C� s | j d d � | j j d S( s� Override to customize the login URL based on the request.
By default, we use the ``login_url`` application setting.
t login_urls @tornado.web.authenticated( R� R+ RB ( R& ( ( s1 /usr/lib64/python2.7/site-packages/tornado/web.pyt
get_login_url> s c C� s | j j j d � S( s� Override to customize template path for each handler.
By default, we use the ``template_path`` application setting.
Return None to load templates relative to the calling file.
R� ( R+ RB RF ( R& ( ( s1 /usr/lib64/python2.7/site-packages/tornado/web.pyR� F s c C� s t | d � s| j � \ } } } | j j d d � } | d k rZ t j | � | _ nx | d k r� t j d � } d j d t j | � t j t
| | � � t t t
| � � � g � | _ n t d | � � | d k r| j r� d n d } | j d
| j d | �qn | j S(
sl The XSRF-prevention token for the current user/session.
To prevent cross-site request forgery, we set an '_xsrf' cookie
and include the same '_xsrf' value as an argument with all POST
requests. If the two do not match, we reject the form submission
as a potential forgery.
See http://en.wikipedia.org/wiki/Cross-site_request_forgery
.. versionchanged:: 3.2.2
The xsrf token will now be have a random mask applied in every
request, which makes it safe to include the token in pages
that are compressed. See http://breachattack.com for more
information on the issue fixed by this change. Old (version 1)
cookies will be converted to version 2 when this method is called
unless the ``xsrf_cookie_version`` `Application` setting is
set to 1.
t _xsrf_tokent xsrf_cookie_versioni i i t |t 2s unknown xsrf cookie version %di t _xsrfR� N( R� t _get_raw_xsrf_tokenRB RF t binasciit b2a_hexRG R� t urandomR� R R Ru R� Rd R2 R R� ( R& RY t tokent timestampt output_versiont maskR� ( ( s1 /usr/lib64/python2.7/site-packages/tornado/web.pyt
xsrf_tokenN s& $
c C� s� t | d � s� | j d � } | r? | j | � \ } } } n d \ } } } | d k r~ d } t j d � } t j � } n | | | f | _ n | j S( s� Read or generate the xsrf token in its raw form.
The raw_xsrf_token is a tuple containing:
* version: the version of the cookie from which this token was read,
or None if we generated a new token in this request.
* token: the raw token data; random (non-ascii) bytes.
* timestamp: the time this token was generated (will not be accurate
for version 1 cookies)
t _raw_xsrf_tokenRK i N( NNN( R� R� t _decode_xsrf_tokenR2 R� RO R[ RU ( R& R RY RP RQ ( ( s1 /usr/lib64/python2.7/site-packages/tornado/web.pyRL w s c C� sI y t j t | � � } | r� t | j d � � } | d k r� | j d � \ } } } } t j t | � � } t | t j t | � � � } t | � } | | | f St d � � ng d } y t j t | � � } Wn& t j
t f k
r� t | � } n Xt t j � � } | | | f SWn% t k
rDt
j d d t �d SXd S( s_ Convert a cookie string into a the tuple form returned by
_get_raw_xsrf_token.
i i RI s Unknown xsrf cookie versions( Uncaught exception in _decode_xsrf_tokenR% N( NNN( t _signed_value_version_ret matchR R� t groupR9 RM t a2b_hexR R� t ErrorRw R[ R t debugR0 R2 ( R& R R% RY R RS t masked_tokenRQ RP ( ( s1 /usr/lib64/python2.7/site-packages/tornado/web.pyRV � s.
c C� s� | j d d � p9 | j j j d � p9 | j j j d � } | sT t d d � � n | j | � \ } } } | j � \ } } } t t | � t | � � s� t d d � � n d S( s� Verifies that the ``_xsrf`` cookie matches the ``_xsrf`` argument.
To prevent cross-site request forgery, we set an ``_xsrf``
cookie and include the same value as a non-cookie
field with all ``POST`` requests. If the two do not match, we
reject the form submission as a potential forgery.
The ``_xsrf`` value may be set as either a form field named ``_xsrf``
or in a custom HTTP header named ``X-XSRFToken`` or ``X-CSRFToken``
(the latter is accepted for compatibility with Django).
See http://en.wikipedia.org/wiki/Cross-site_request_forgery
Prior to release 1.1.1, this check was ignored if the HTTP header
``X-Requested-With: XMLHTTPRequest`` was present. This exception
has been shown to be insecure and has been removed. For more
information please see
http://www.djangoproject.com/weblog/2011/feb/08/security/
http://weblog.rubyonrails.org/2011/2/8/csrf-protection-bypass-in-ruby-on-rails
.. versionchanged:: 3.2.2
Added support for cookie version 2. Both versions 1 and 2 are
supported.
RK s X-Xsrftokens X-Csrftokeni� s" '_xsrf' argument missing from POSTs( XSRF cookie does not match POST argumentN(
R R2 R, R8 RF RC RV RL t _time_independent_equalsR ( R& RP R t expected_token( ( s1 /usr/lib64/python2.7/site-packages/tornado/web.pyt check_xsrf_cookie� s c C� s d t j | j � d S( s� An HTML ``<input/>`` element to be included with all POST forms.
It defines the ``_xsrf`` input value, which we check on all POST
requests to prevent cross-site request forgery. If you have set
the ``xsrf_cookies`` application setting, you must include this
HTML within all of your HTML forms.
In a template, this method should be called with ``{% module
xsrf_form_html() %}``
See `check_xsrf_cookie()` above for more information.
s) <input type="hidden" name="_xsrf" value="s "/>( R R� RT ( R& ( ( s1 /usr/lib64/python2.7/site-packages/tornado/web.pyR � s c K� s� | j d d � | j j d t � j } | d k rI t | d t � } n | rl | j j d | j j
} n d } | | | j | | � S( s� Returns a static URL for the given relative static file path.
This method requires you set the ``static_path`` setting in your
application (which specifies the root directory of your static
files).
This method returns a versioned url (by default appending
``?v=<signature>``), which allows the static files to be
cached indefinitely. This can be disabled by passing
``include_version=False`` (in the default implementation;
other static file implementations are not required to support
this, but they may support other options).
By default this method returns URLs relative to the current
host, but if ``include_host`` is true the URL returned will be
absolute. If this handler has an ``include_host`` attribute,
that value will be used as the default for all `static_url`
calls that do not pass ``include_host`` as a keyword argument.
t static_pathR� t static_handler_classt include_hosts ://R� N( R� RB RF t StaticFileHandlert make_static_urlR2 R� R- R, t protocolt host( R& R� Rc RA t get_urlt base( ( s1 /usr/lib64/python2.7/site-packages/tornado/web.pyR� � s s this featurec C� s2 | j j j | � s. t d | | f � � n d S( s< Raises an exception if the given app setting is not defined.s> You must define the '%s' setting in your application to use %sN( R+ RB RF R� ( R& Rj t feature( ( s1 /usr/lib64/python2.7/site-packages/tornado/web.pyR� s c G� s | j j | | � S( s$ Alias for `Application.reverse_url`.( R+ R
( R& Rj RD ( ( s1 /usr/lib64/python2.7/site-packages/tornado/web.pyR
s c C� s; t j � } x | j D] } | j | � q Wd | j � S( s Computes the etag header to be used for this request.
By default uses a hash of the content written so far.
May be overridden to provide custom etag implementations,
or may return None to disable tornado's default etag support.
s "%s"( t hashlibt sha1R^ R� t hexdigest( R& t hasherR ( ( s1 /usr/lib64/python2.7/site-packages/tornado/web.pyt compute_etag s c C� s/ | j � } | d k r+ | j d | � n d S( s� Sets the response's Etag header using ``self.compute_etag()``.
Note: no header will be set if ``compute_etag()`` returns ``None``.
This method is called automatically when the request is finished.
R N( Ro R2 Rl ( R& t etag( ( s1 /usr/lib64/python2.7/site-packages/tornado/web.pyR s c C� s� t | j j d d � � } t j d t | j j j d d � � � } | sS | rW t St } | d d k rv t } n< d � } x0 | D]( } | | � | | � k r� t } Pq� q� W| S( s� Checks the ``Etag`` header against requests's ``If-None-Match``.
Returns ``True`` if the request's Etag matches and a 304 should be
returned. For example::
self.set_etag_header()
if self.check_etag_header():
self.set_status(304)
return
This method is called automatically when the request is finished,
but may be called earlier for applications that override
`compute_etag` and want to do an early check for ``If-None-Match``
before completing the request. The ``Etag`` header should be set
(perhaps with `set_etag_header`) before calling this method.
R R� s \*|(?:W/)?"[^"]*"s
If-None-Matchi t *c S� s | j d � r | d S| S( Ns W/i ( R� ( R� ( ( s1 /usr/lib64/python2.7/site-packages/tornado/web.pyR6 K s ( R R\ RF R� t findallR, R8 R- R0 ( R& t
computed_etagt etagsRX t valRp ( ( s1 /usr/lib64/python2.7/site-packages/tornado/web.pyR + s !
c C� s< y t | | | f � Wn t k
r7 | j | � n Xt S( N( R R� t _handle_request_exceptionR0 ( R& t typeRk R+ ( ( s1 /usr/lib64/python2.7/site-packages/tornado/web.pyt _stack_context_handle_exceptionR s
c /� sa | � _ y�� j j � j k r0 t d � � n g | D] } � j | � ^ q7 � _ t � f d � | j � D� � � _ � j j d k r� � j
j j d � r� � j
� n � j � } t | � r� | V} n | d k r� t d | � � n � j d k r� j j d � n � j r d St � j � rWy � j j VWqWt j k
rSd SXn t � � j j j � � } | � j � j � } t | � r�| V} n | d k r�t d | � � n � j r�� j r�� j � n Wn} t k
r\} y � j | � Wn$ t k
r&t j! d d
t" �n X� j d k r]� j j# � r]� j j d � q]n Xd S( s7 Executes this request with the given output transforms.i� c 3� s0 | ]& \ } } | � j | d | �f Vq d S( Rj N( R� ( R# R� R� ( R& ( s1 /usr/lib64/python2.7/site-packages/tornado/web.pys <genexpr>e s R R R! t xsrf_cookiess Expected None, got %rNs Exception in exception handlerR% ( s GETs HEADR! ($ R3 R, R t SUPPORTED_METHODSRC R� R5 R� R8 R6 R+ RB RF R` RL R R2 Rw R4 R R/ RN RO RP R
RS R� t lowerR1 R� R� Rv R
R& R0 RQ ( R& t
transformsRD RA t argt resultR t e( ( R& s1 /usr/lib64/python2.7/site-packages/tornado/web.pyt _execute] sP %
c C� s
t � � d S( sw Implement this method to handle streamed request data.
Requires the `.stream_request_body` decorator.
N( t NotImplementedError( R& R� ( ( s1 /usr/lib64/python2.7/site-packages/tornado/web.pyt
data_received� s c C� s | j j | � d S( s� Logs the current request.
Sort of deprecated since this functionality was moved to the
Application, but left in place for the benefit of existing apps
that have overridden this method.
N( R+ t log_request( R& ( ( s1 /usr/lib64/python2.7/site-packages/tornado/web.pyR# � s c C� s# d | j j | j j | j j f S( Ns
%s %s (%s)( R, R t urit remote_ip( R& ( ( s1 /usr/lib64/python2.7/site-packages/tornado/web.pyt _request_summary� s c C� s
t | t � r) | j s% | j � n d Sy | j t j � � Wn$ t k
rf t j d d t
�n X| j rt d St | t � r� | j t
j k r� | j r� t j d | j � | j d d t j � �q| j | j d t j � �n | j d d t j � �d S( Ns Error in exception loggerR% s Bad HTTP status code: %di� ( Rp t FinishR/ R� t
log_exceptionR� R% R� R
R& R0 RC Re R R` Rf R R( ( R& R ( ( s1 /usr/lib64/python2.7/site-packages/tornado/web.pyRv � s
c C� s� t | t � r] | j r� d | j } | j | j � g t | j � } t j | | � q� n+ t j
d | j � | j d | | | f �d S( sK Override to customize logging of uncaught exceptions.
By default logs instances of `HTTPError` as warnings without
stack traces (on the ``tornado.general`` logger), and all
other exceptions as errors with stack traces (on the
``tornado.application`` logger).
.. versionadded:: 3.1
s %d %s: s Uncaught exception %s
%rR% N( Rp RC t log_messageRe R� R� RD R t warningR
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c � s � � � f d � } | S( Nc � s] t � d � s i � _ n � � j k r@ � � � � j � <n � j � j | | � } | S( NR� ( R� R� R� ( RD RA t rendered( R� Rj R& ( s1 /usr/lib64/python2.7/site-packages/tornado/web.pyR� � s ( ( R& Rj R� R� ( ( R� Rj R& s1 /usr/lib64/python2.7/site-packages/tornado/web.pyt
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V 0 ) '
) $ # #
' :
c � s5 d d l m � t j � � � � f d � � } | S( s Wrap request handler methods with this if they are asynchronous.
This decorator is for callback-style asynchronous methods; for
coroutines, use the ``@gen.coroutine`` decorator without
``@asynchronous``. (It is legal for legacy reasons to use the two
decorators together provided ``@asynchronous`` is first, but
``@asynchronous`` will be ignored in this case)
This decorator should only be applied to the :ref:`HTTP verb
methods <verbs>`; its behavior is undefined for any other method.
This decorator does not *make* a method asynchronous; it tells
the framework that the method *is* asynchronous. For this decorator
to be useful the method must (at least sometimes) do something
asynchronous.
If this decorator is given, the response is not finished when the
method returns. It is up to the request handler to call
`self.finish() <RequestHandler.finish>` to finish the HTTP
request. Without this decorator, the request is automatically
finished when the ``get()`` or ``post()`` method returns. Example:
.. testcode::
class MyRequestHandler(RequestHandler):
@asynchronous
def get(self):
http = httpclient.AsyncHTTPClient()
http.fetch("http://friendfeed.com/", self._on_download)
def _on_download(self, response):
self.write("Downloaded!")
self.finish()
.. testoutput::
:hide:
.. versionadded:: 3.1
The ability to use ``@gen.coroutine`` without ``@asynchronous``.
i ( t IOLoopc � sq t � _ t j � j � �P � � | | � } t | � rc � f d � } � j � j | | � d S| SWd QXd S( Nc � s$ | j � � j s � j � n d S( N( R~ R/ R� ( t f( R& ( s1 /usr/lib64/python2.7/site-packages/tornado/web.pyt future_complete+ s
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This decorator implies the following changes:
* `.HTTPServerRequest.body` is undefined, and body arguments will not
be included in `RequestHandler.get_argument`.
* `RequestHandler.prepare` is called when the request headers have been
read instead of after the entire body has been read.
* The subclass must define a method ``data_received(self, data):``, which
will be called zero or more times as data is available. Note that
if the request has an empty body, ``data_received`` may not be called.
* ``prepare`` and ``data_received`` may return Futures (such as via
``@gen.coroutine``, in which case the next method will not be called
until those futures have completed.
* The regular HTTP method (``post``, ``put``, etc) will be called after
the entire body has been read.
There is a subtle interaction between ``data_received`` and asynchronous
``prepare``: The first call to ``data_received`` may occur at any point
after the call to ``prepare`` has returned *or yielded*.
s+ expected subclass of RequestHandler, got %r( t
issubclassR Rw R0 t _stream_request_body( t cls( ( s1 /usr/lib64/python2.7/site-packages/tornado/web.pyt stream_request_body: s c C� s1 t | t � s! t d | � � n t | d t � S( Ns+ expected subclass of RequestHandler, got %rR� ( R� R Rw R� R- ( R� ( ( s1 /usr/lib64/python2.7/site-packages/tornado/web.pyRN V s c � s" t j � � � f d � � } | S( s# Use this decorator to remove trailing slashes from the request path.
For example, a request to ``/foo/`` would redirect to ``/foo`` with this
decorator. Your request handler mapping should use a regular expression
like ``r'/foo/*'`` in conjunction with using the decorator.
c � s� | j j j d � r� | j j d k r | j j j d � } | r� | j j re | d | j j 7} n | j | d t �d Sq� t d � � n � | | | � S( NR� R R t ?R� i� ( s GETs HEAD( R, R� t endswithR t rstript queryR� R0 RC ( R& RD RA R� ( R ( s1 /usr/lib64/python2.7/site-packages/tornado/web.pyR� c s ( R� R� ( R R� ( ( R s1 /usr/lib64/python2.7/site-packages/tornado/web.pyt removeslash\ s
c � s" t j � � � f d � � } | S( s& Use this decorator to add a missing trailing slash to the request path.
For example, a request to ``/foo`` would redirect to ``/foo/`` with this
decorator. Your request handler mapping should use a regular expression
like ``r'/foo/?'`` in conjunction with using the decorator.
c � s� | j j j d � s� | j j d k rq | j j d } | j j rZ | d | j j 7} n | j | d t �d St d � � n � | | | � S( NR� R R R� R� i� ( s GETs HEAD( R, R� R� R R� R� R0 RC ( R& RD RA R� ( R ( s1 /usr/lib64/python2.7/site-packages/tornado/web.pyR� z s ( R� R� ( R R� ( ( R s1 /usr/lib64/python2.7/site-packages/tornado/web.pyt addslashs s t Applicationc B� s} e Z d Z d
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d � Z RS( sa A collection of request handlers that make up a web application.
Instances of this class are callable and can be passed directly to
HTTPServer to serve the application::
application = web.Application([
(r"/", MainPageHandler),
])
http_server = httpserver.HTTPServer(application)
http_server.listen(8080)
ioloop.IOLoop.current().start()
The constructor for this class takes in a list of `URLSpec` objects
or (regexp, request_class) tuples. When we receive requests, we
iterate over the list in order and instantiate an instance of the
first request class whose regexp matches the request path.
The request class can be specified as either a class object or a
(fully-qualified) name.
Each tuple can contain additional elements, which correspond to the
arguments to the `URLSpec` constructor. (Prior to Tornado 3.2, this
only tuples of two or three elements were allowed).
A dictionary may be passed as the third element of the tuple,
which will be used as keyword arguments to the handler's
constructor and `~RequestHandler.initialize` method. This pattern
is used for the `StaticFileHandler` in this example (note that a
`StaticFileHandler` can be installed automatically with the
static_path setting described below)::
application = web.Application([
(r"/static/(.*)", web.StaticFileHandler, {"path": "/var/www"}),
])
We support virtual hosts with the `add_handlers` method, which takes in
a host regular expression as the first argument::
application.add_handlers(r"www\.myhost\.com", [
(r"/article/([0-9]+)", ArticleHandler),
])
You can serve static files by sending the ``static_path`` setting
as a keyword argument. We will serve those files from the
``/static/`` URI (this is configurable with the
``static_url_prefix`` setting), and we will serve ``/favicon.ico``
and ``/robots.txt`` from the same directory. A custom subclass of
`StaticFileHandler` can be specified with the
``static_handler_class`` setting.
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c K� s3 d d l m } | | | � } | j | | � d S( sx Starts an HTTP server for this application on the given port.
This is a convenience alias for creating an `.HTTPServer`
object and calling its listen method. Keyword arguments not
supported by `HTTPServer.listen <.TCPServer.listen>` are passed to the
`.HTTPServer` constructor. For advanced uses
(e.g. multi-process mode), do not use this method; create an
`.HTTPServer` and call its
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c G� s7 | | j k r# | j | j | � St d | � � d S( s3 Returns a URL path for handler named ``name``
The handler must be added to the application as a named `URLSpec`.
Args will be substituted for capturing groups in the `URLSpec` regex.
They will be converted to strings if necessary, encoded as utf8,
and url-escaped.
s %s not found in named urlsN( R� R7 Rc ( R& Rj RD ( ( s1 /usr/lib64/python2.7/site-packages/tornado/web.pyR
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% RC c B� s# e Z d Z d d � Z d � Z RS( s An exception that will turn into an HTTP error response.
Raising an `HTTPError` is a convenient alternative to calling
`RequestHandler.send_error` since it automatically ends the
current function.
To customize the response sent with an `HTTPError`, override
`RequestHandler.write_error`.
:arg int status_code: HTTP status code. Must be listed in
`httplib.responses <http.client.responses>` unless the ``reason``
keyword argument is given.
:arg string log_message: Message to be written to the log for this error
(will not be shown to the user unless the `Application` is in debug
mode). May contain ``%s``-style placeholders, which will be filled
in with remaining positional parameters.
:arg string reason: Keyword-only argument. The HTTP "reason" phrase
to pass in the status line along with ``status_code``. Normally
determined automatically from ``status_code``, but can be used
to use a non-standard numeric code.
c O� sY | | _ | | _ | | _ | j d d � | _ | rU | rU | j d d � | _ n d S( NRf t %s %%( Re R� RD RF R2 Rf t replace( R& Re R� RD RA ( ( s1 /usr/lib64/python2.7/site-packages/tornado/web.pyR* � s
c C� sY d | j | j p' t j j | j d � f } | j rQ | d | j | j d S| Sd S( Ns HTTP %d: %st Unknowns (t )( Re Rf R R` RF R� RD ( R& R� ( ( s1 /usr/lib64/python2.7/site-packages/tornado/web.pyt __str__ s % N( R� R� R� R2 R* R ( ( ( s1 /usr/lib64/python2.7/site-packages/tornado/web.pyRC � s R� c B� s e Z d Z RS( s� An exception that ends the request without producing an error response.
When `Finish` is raised in a `RequestHandler`, the request will end
(calling `RequestHandler.finish` if it hasn't already been called),
but the outgoing response will not be modified and the error-handling
methods (including `RequestHandler.write_error`) will not be called.
This can be a more convenient way to implement custom error pages
than overriding ``write_error`` (especially in library code)::
if self.current_user is None:
self.set_status(401)
self.set_header('WWW-Authenticate', 'Basic realm="something"')
raise Finish()
( R� R� R� ( ( ( s1 /usr/lib64/python2.7/site-packages/tornado/web.pyR� s R� c B� s e Z d Z d � Z RS( s� Exception raised by `RequestHandler.get_argument`.
This is a subclass of `HTTPError`, so if it is uncaught a 400 response
code will be used instead of 500 (and a stack trace will not be logged).
.. versionadded:: 3.1
c C� s* t t | � j d d | � | | _ d S( Ni� s Missing argument %s( R) R� R* t arg_name( R& R ( ( s1 /usr/lib64/python2.7/site-packages/tornado/web.pyR* * s ( R� R� R� R* ( ( ( s1 /usr/lib64/python2.7/site-packages/tornado/web.pyR� " s R� c B� s) e Z d Z d � Z d � Z d � Z RS( sB Generates an error response with ``status_code`` for all requests.c C� s | j | � d S( N( Rg ( R& Re ( ( s1 /usr/lib64/python2.7/site-packages/tornado/web.pyR@ 2 s c C� s t | j � � d S( N( RC R_ ( R& ( ( s1 /usr/lib64/python2.7/site-packages/tornado/web.pyRL 5 s c C� s d S( N( ( R& ( ( s1 /usr/lib64/python2.7/site-packages/tornado/web.pyR` 8 s ( R� R� R� R@ RL R` ( ( ( s1 /usr/lib64/python2.7/site-packages/tornado/web.pyR� 0 s R� c B� s# e Z d Z e d � Z d � Z RS( s Redirects the client to the given URL for all GET requests.
You should provide the keyword argument ``url`` to the handler, e.g.::
application = web.Application([
(r"/oldpath", web.RedirectHandler, {"url": "/newpath"}),
])
c C� s | | _ | | _ d S( N( t _urlt
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d � � Z d � Z e
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d d d
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e d � � Z d � Z e
d � � Z e
d � � Z! RS( s� A simple handler that can serve static content from a directory.
A `StaticFileHandler` is configured automatically if you pass the
``static_path`` keyword argument to `Application`. This handler
can be customized with the ``static_url_prefix``, ``static_handler_class``,
and ``static_handler_args`` settings.
To map an additional path to this handler for a static data directory
you would add a line to your application like::
application = web.Application([
(r"/content/(.*)", web.StaticFileHandler, {"path": "/var/www"}),
])
The handler constructor requires a ``path`` argument, which specifies the
local root directory of the content to be served.
Note that a capture group in the regex is required to parse the value for
the ``path`` argument to the get() method (different than the constructor
argument above); see `URLSpec` for details.
To maximize the effectiveness of browser caching, this class supports
versioned urls (by default using the argument ``?v=``). If a version
is given, we instruct the browser to cache this file indefinitely.
`make_static_url` (also available as `RequestHandler.static_url`) can
be used to construct a versioned url.
This handler is intended primarily for use in development and light-duty
file serving; for heavy traffic it will be more efficient to use
a dedicated static file server (such as nginx or Apache). We support
the HTTP ``Accept-Ranges`` mechanism to return partial content (because
some browsers require this functionality to be present to seek in
HTML5 audio or video), but this handler should not be used with
files that are too large to fit comfortably in memory.
**Subclassing notes**
This class is designed to be extensible by subclassing, but because
of the way static urls are generated with class methods rather than
instance methods, the inheritance patterns are somewhat unusual.
Be sure to use the ``@classmethod`` decorator when overriding a
class method. Instance methods may use the attributes ``self.path``
``self.absolute_path``, and ``self.modified``.
Subclasses should only override methods discussed in this section;
overriding other methods is error-prone. Overriding
``StaticFileHandler.get`` is particularly problematic due to the
tight coupling with ``compute_etag`` and other methods.
To change the way static urls are generated (e.g. to match the behavior
of another server or CDN), override `make_static_url`, `parse_url_path`,
`get_cache_time`, and/or `get_version`.
To replace all interaction with the filesystem (e.g. to serve
static content from a database), override `get_content`,
`get_content_size`, `get_modified_time`, `get_absolute_path`, and
`validate_absolute_path`.
.. versionchanged:: 3.1
Many of the methods for subclasses were added in Tornado 3.1.
i�Q im i
c C� s | | _ | | _ d S( N( t roott default_filename( R& R� R ( ( s1 /usr/lib64/python2.7/site-packages/tornado/web.pyR@ � s c C� s | j � i | _ Wd QXd S( N( t _lockt _static_hashes( R� ( ( s1 /usr/lib64/python2.7/site-packages/tornado/web.pyR� � s
c C� s | j | d t �S( Nt include_body( RF R- ( R& R� ( ( s1 /usr/lib64/python2.7/site-packages/tornado/web.pyRE � s c
c� s� | j | � | _ ~ | j | j | j � } | j | j | � | _ | j d k rX d S| j � | _ | j � | j
� r� | j d � d Sd } | j j
j d � } | r� t j | � } n | j � } | r�| \ } } | d k r� | | k s| d k r;| j d � | j d d � | j d d | f � d S| d k r`| d k r`| | 7} n | d k r�| | k r�| } n | | p�| | p�d k r�| j d � | j d t j | | | � � q�n
d } } | d k r�| d k r�| | } n4 | d k r| } n | d k r,| | } n | } | j d
| � | r�| j | j | | � }
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r�d SXq�Wn | j j d k s�t � d S( Ni0 t Rangei i� s Content-Types
text/plains
Content-Ranges
bytes */%si� s Content-LengthR ( t parse_url_pathR� t get_absolute_pathR t validate_absolute_patht
absolute_pathR2 t get_modified_timet modifiedt set_headerst should_return_304Rg R, R8 RF R t _parse_request_ranget get_content_sizeRl t _get_content_ranget get_contentRp Rq R� R R
RS R R� ( R& R� R
R t
request_ranget range_headert sizeR� t endR$ t contentR� ( ( s1 /usr/lib64/python2.7/site-packages/tornado/web.pyRF � sh
$
c C� s' | j | j � } | s d Sd | f S( s Sets the ``Etag`` header based on static url version.
This allows efficient ``If-None-Match`` checks against cached
versions, and sends the correct ``Etag`` for a partial response
(i.e. the same ``Etag`` as the full file).
.. versionadded:: 3.1
s "%s"N( t _get_cached_versionR R2 ( R& t version_hash( ( s1 /usr/lib64/python2.7/site-packages/tornado/web.pyRo � s c C� s� | j d d � | j � | j d
k r? | j d | j � n | j � } | rd | j d | � n | j | j | j | � } | d k r� | j d t j j � t j d | � � | j d d t
| � � n | j | j � d
S( s] Sets the content and caching headers on the response.
.. versionadded:: 3.1
s
Accept-RangesRq s
Last-Modifieds Content-Typei t Expirest secondss
Cache-Controls max-age=N( Rl R R R2 t get_content_typet get_cache_timeR� Rv R� R� Ru t set_extra_headers( R& t content_typet
cache_time( ( s1 /usr/lib64/python2.7/site-packages/tornado/web.pyR � s
c C� s | j � r t S| j j j d � } | d k r{ t j j | � } | d k r{ t j | d � } | | j
k rx t Sq{ n t S( sg Returns True if the headers indicate that we should return 304.
.. versionadded:: 3.1
s If-Modified-Sincei N( R R0 R, R8 RF R2 t emailt utilst parsedateRv R R- ( R& t ims_valuet
date_tuplet if_since( ( s1 /usr/lib64/python2.7/site-packages/tornado/web.pyR s
c C� s% t j j t j j | | � � } | S( s� Returns the absolute location of ``path`` relative to ``root``.
``root`` is the path configured for this `StaticFileHandler`
(in most cases the ``static_path`` `Application` setting).
This class method may be overridden in subclasses. By default
it returns a filesystem path, but other strings may be used
as long as they are unique and understood by the subclass's
overridden `get_content`.
.. versionadded:: 3.1
( R� R� t abspathR� ( R� R R� R, ( ( s1 /usr/lib64/python2.7/site-packages/tornado/web.pyR
% s !c C� s t j j | � t j j } | t j j j | � sM t d d | j � � n t j j | � r� | j d k r� | j j j
d � s� | j | j j d d t �d St j j
| | j � } n t j j | � s� t d � � n t j j | � s
t d d | j � � n | S( s� Validate and return the absolute path.
``root`` is the configured path for the `StaticFileHandler`,
and ``path`` is the result of `get_absolute_path`
This is an instance method called during request processing,
so it may raise `HTTPError` or use methods like
`RequestHandler.redirect` (return None after redirecting to
halt further processing). This is where 404 errors for missing files
are generated.
This method may modify the path before returning it, but note that
any such modifications will not be understood by `make_static_url`.
In instance methods, this method's result is available as
``self.absolute_path``.
.. versionadded:: 3.1
i� s" %s is not in root static directoryR� R� Ni� s %s is not a file( R� R� R, t sepR� RC t isdirR R2 R, R� R� R0 R� t existst isfile( R& R R ( ( s1 /usr/lib64/python2.7/site-packages/tornado/web.pyR 6 s c c� s� t | d � �� } | d k r. | j | � n | d k rM | | pF d } n d } x� t r� d } | d k r� | | k r� | } n | j | � } | r� | d k r� | t | � 8} n | VqV | d k r� | d k s� t � n d SqV WWd QXd S( sZ Retrieve the content of the requested resource which is located
at the given absolute path.
This class method may be overridden by subclasses. Note that its
signature is different from other overridable class methods
(no ``settings`` argument); this is deliberate to ensure that
``abspath`` is able to stand on its own as a cache key.
This method should either return a byte string or an iterator
of byte strings. The latter is preferred for large files
as it helps reduce memory fragmentation.
.. versionadded:: 3.1
t rbi i@ i Ni ( t openR2 t seekR0 t readRx R� ( R� R, R� R t filet remainingt
chunk_sizeR� ( ( s1 /usr/lib64/python2.7/site-packages/tornado/web.pyR c s$ c C� sb | j | � } t j � } t | t � r: | j | � n x | D] } | j | � qA W| j � S( s� Returns a version string for the resource at the given path.
This class method may be overridden by subclasses. The
default implementation is a hash of the file's contents.
.. versionadded:: 3.1
( R Rk t md5Rp Rq R� Rm ( R� R, R� Rn R� ( ( s1 /usr/lib64/python2.7/site-packages/tornado/web.pyt get_content_version� s
c C� s. t | d � s' t j | j � | _ n | j S( Nt _stat_result( R� R� t statR R: ( R& ( ( s1 /usr/lib64/python2.7/site-packages/tornado/web.pyt _stat� s c C� s | j � } | t j S( s% Retrieve the total size of the resource at the given path.
This method may be overridden by subclasses.
.. versionadded:: 3.1
.. versionchanged:: 4.0
This method is now always called, instead of only when
partial results are requested.
( R< R; t ST_SIZE( R& t stat_result( ( s1 /usr/lib64/python2.7/site-packages/tornado/web.pyR � s c C� s) | j � } t j j | t j � } | S( s� Returns the time that ``self.absolute_path`` was last modified.
May be overridden in subclasses. Should return a `~datetime.datetime`
object or None.
.. versionadded:: 3.1
( R< Rv t utcfromtimestampR; t ST_MTIME( R& R> R ( ( s1 /usr/lib64/python2.7/site-packages/tornado/web.pyR � s c C� s t j | j � \ } } | S( sh Returns the ``Content-Type`` header to be used for this request.
.. versionadded:: 3.1
( t mimetypest
guess_typeR ( R& t mime_typet encoding( ( s1 /usr/lib64/python2.7/site-packages/tornado/web.pyR! � s c C� s d S( s1 For subclass to add extra headers to the responseN( ( R& R� ( ( s1 /usr/lib64/python2.7/site-packages/tornado/web.pyR# � s c C� s d | j j k r | j Sd S( s� Override to customize cache control behavior.
Return a positive number of seconds to make the result
cacheable for that amount of time or 0 to mark resource as
cacheable for an unspecified amount of time (subject to
browser heuristics).
By default returns cache expiry of 10 years for resources requested
with ``v`` argument.
R� i ( R, R| t
CACHE_MAX_AGE( R& R� R RC ( ( s1 /usr/lib64/python2.7/site-packages/tornado/web.pyR" � s c C� sJ | j d d � | } | s | S| j | | � } | s< | Sd | | f S( s Constructs a versioned url for the given path.
This method may be overridden in subclasses (but note that it
is a class method rather than an instance method). Subclasses
are only required to implement the signature
``make_static_url(cls, settings, path)``; other keyword
arguments may be passed through `~RequestHandler.static_url`
but are not standard.
``settings`` is the `Application.settings` dictionary. ``path``
is the static path being requested. The url returned should be
relative to the current host.
``include_version`` determines whether the generated URL should
include the query string containing the version hash of the
file corresponding to the given ``path``.
R� s /static/s %s?v=%s( RF t get_version( R� RB R� t include_versionR� R ( ( s1 /usr/lib64/python2.7/site-packages/tornado/web.pyRe � s c C� s1 t j j d k r- | j d t j j � } n | S( s" Converts a static URL path into a filesystem path.
``url_path`` is the path component of the URL with
``static_url_prefix`` removed. The return value should be
filesystem path relative to ``static_path``.
This is the inverse of `make_static_url`.
R� ( R� R� R- R� ( R& t url_path( ( s1 /usr/lib64/python2.7/site-packages/tornado/web.pyR � s c C� s# | j | d | � } | j | � S( s% Generate the version string to be used in static URLs.
``settings`` is the `Application.settings` dictionary and ``path``
is the relative location of the requested asset on the filesystem.
The returned value should be a string, or ``None`` if no version
could be determined.
.. versionchanged:: 3.1
This method was previously recommended for subclasses to override;
`get_content_version` is now preferred as it allows the base
class to handle caching of the result.
Ra ( R
R ( R� RB R� t abs_path( ( s1 /usr/lib64/python2.7/site-packages/tornado/web.pyRF � s c C� s� | j �{ | j } | | k rg y | j | � | | <Wqg t k
rc t j d | � d | | <qg Xn | j | � } | r� | SWd QXd S( Ns Could not open static file %r( R R R9 R� R R& R2 RF ( R� RI t hashest hsh( ( s1 /usr/lib64/python2.7/site-packages/tornado/web.pyR
s
i�3�i �N(" R� R� R� RE R R� R� R R2 R@ t classmethodR� RE R R� R0 RF Ro R R R
R R R9 R< R R R! R# R" Re R RF R ( ( ( s1 /usr/lib64/python2.7/site-packages/tornado/web.pyRd P s8 = K -$
t FallbackHandlerc B� s e Z d Z d � Z d � Z RS( sM A `RequestHandler` that wraps another HTTP server callback.
The fallback is a callable object that accepts an
`~.httputil.HTTPServerRequest`, such as an `Application` or
`tornado.wsgi.WSGIContainer`. This is most useful to use both
Tornado ``RequestHandlers`` and WSGI in the same server. Typical
usage::
wsgi_app = tornado.wsgi.WSGIContainer(
django.core.handlers.wsgi.WSGIHandler())
application = tornado.web.Application([
(r"/foo", FooHandler),
(r".*", FallbackHandler, dict(fallback=wsgi_app),
])
c C� s
| | _ d S( N( t fallback( R& RN ( ( s1 /usr/lib64/python2.7/site-packages/tornado/web.pyR@ /
s c C� s | j | j � t | _ d S( N( RN R, R0 R/ ( R& ( ( s1 /usr/lib64/python2.7/site-packages/tornado/web.pyRL 2
s ( R� R� R� R@ RL ( ( ( s1 /usr/lib64/python2.7/site-packages/tornado/web.pyRM
s t OutputTransformc B� s) e Z d Z d � Z d � Z d � Z RS( s� A transform modifies the result of an HTTP request (e.g., GZip encoding)
Applications are not expected to create their own OutputTransforms
or interact with them directly; the framework chooses which transforms
(if any) to apply.
c C� s d S( N( ( R& R, ( ( s1 /usr/lib64/python2.7/site-packages/tornado/web.pyR* >
s c C� s
| | | f S( N( ( R& Re R8 R� t finishing( ( s1 /usr/lib64/python2.7/site-packages/tornado/web.pyR A
s c C� s | S( N( ( R& R� RP ( ( s1 /usr/lib64/python2.7/site-packages/tornado/web.pyR D
s ( R� R� R� R* R R ( ( ( s1 /usr/lib64/python2.7/site-packages/tornado/web.pyRO 7
s R� c B� sV e Z d Z e d d d d d d g � Z d Z d � Z d � Z d
� Z d � Z RS( sI Applies the gzip content encoding to the response.
See http://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html#sec14.11
.. versionchanged:: 4.0
Now compresses all mime types beginning with ``text/``, instead
of just a whitelist. (the whitelist is still used for certain
non-text mime types).
s application/javascripts application/x-javascripts application/xmls application/atom+xmls application/jsons application/xhtml+xmli c C� s" d | j j d d � k | _ d S( NR� s Accept-EncodingR� ( R8 RF t _gzipping( R& R, ( ( s1 /usr/lib64/python2.7/site-packages/tornado/web.pyR* Y
s c C� s | j d � p | | j k S( Ns text/( R� t
CONTENT_TYPES( R& t ctype( ( s1 /usr/lib64/python2.7/site-packages/tornado/web.pyt _compressible_type\
s c C� s( d | k r | d c d 7<n
d | d <| j r� t | j d d � � j d � d } | j | � o� | s� t | � | j k o� d | k | _ n | j rd | d <t � | _ t j
d
d d | j � | _ | j | | � } d
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=qn | | | f S( Nt Varys , Accept-Encodings Accept-Encodings Content-TypeR� R3 i s Content-EncodingR� t modet wt fileobjs Content-Length( RQ R RF R9 RT Rx t
MIN_LENGTHR t _gzip_valueR� t GzipFilet
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c C� sr | j rn | j j | � | r/ | j j � n
| j j � | j j � } | j j d � | j j d � n | S( Ni ( RQ R\ R� t closeR RZ t getvaluet truncateR3 ( R& R� RP ( ( s1 /usr/lib64/python2.7/site-packages/tornado/web.pyR y
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R� R� R� R� RR RY R* RT R R ( ( ( s1 /usr/lib64/python2.7/site-packages/tornado/web.pyR� H
s c � s" t j � � � f d � � } | S( s� Decorate methods with this to require that the user be logged in.
If the user is not logged in, they will be redirected to the configured
`login url <RequestHandler.get_login_url>`.
If you configure a login url with a query parameter, Tornado will
assume you know what you're doing and use it as-is. If not, it
will add a `next` parameter so the login page knows where to send
you once you're logged in.
c � s� | j s� | j j d k r� | j � } d | k r� t j | � j rW | j j � } n | j j } | d t t
d | � � 7} n | j | � d St d � � n � | | | � S( NR R R� t nexti� ( s GETs HEAD(
R R, R RF t urlparset urlsplitt schemet full_urlR� R R� R� RC ( R& RD RA R� t next_url( R ( s1 /usr/lib64/python2.7/site-packages/tornado/web.pyR� �
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s R� c B� sn e Z d Z d � Z e d � � Z d � Z d � Z d � Z d � Z d � Z
d � Z d � Z d
� Z
RS( s2 A re-usable, modular UI unit on a page.
UI modules often execute additional queries, and they can include
additional CSS and JavaScript that will be included in the output
page, which is automatically inserted on page render.
Subclasses of UIModule must override the `render` method.
c C� s1 | | _ | j | _ | j | _ | j | _ d S( N( R R, R9 R ( R& R ( ( s1 /usr/lib64/python2.7/site-packages/tornado/web.pyR* �
s c C� s
| j j S( N( R R ( R& ( ( s1 /usr/lib64/python2.7/site-packages/tornado/web.pyR �
s c O� s
t � � d S( s6 Override in subclasses to return this module's output.N( R� ( R& RD RA ( ( s1 /usr/lib64/python2.7/site-packages/tornado/web.pyR� �
s c C� s d S( sJ Override to return a JavaScript string
to be embedded in the page.N( R2 ( R& ( ( s1 /usr/lib64/python2.7/site-packages/tornado/web.pyR� �
s c C� s d S( s� Override to return a list of JavaScript files needed by this module.
If the return values are relative paths, they will be passed to
`RequestHandler.static_url`; otherwise they will be used as-is.
N( R2 ( R& ( ( s1 /usr/lib64/python2.7/site-packages/tornado/web.pyR� �
s c C� s d S( sJ Override to return a CSS string
that will be embedded in the page.N( R2 ( R& ( ( s1 /usr/lib64/python2.7/site-packages/tornado/web.pyR� �
s c C� s d S( s� Override to returns a list of CSS files required by this module.
If the return values are relative paths, they will be passed to
`RequestHandler.static_url`; otherwise they will be used as-is.
N( R2 ( R& ( ( s1 /usr/lib64/python2.7/site-packages/tornado/web.pyR� �
s c C� s d S( s[ Override to return an HTML string that will be put in the <head/>
element.
N( R2 ( R& ( ( s1 /usr/lib64/python2.7/site-packages/tornado/web.pyR� �
s c C� s d S( sf Override to return an HTML string that will be put at the end of
the <body/> element.
N( R2 ( R& ( ( s1 /usr/lib64/python2.7/site-packages/tornado/web.pyR� �
s c K� s | j j | | � S( s. Renders a template and returns it as a string.( R R� ( R& R� RA ( ( s1 /usr/lib64/python2.7/site-packages/tornado/web.pyR� �
s ( R� R� R� R* R� R R� R� R� R� R� R� R� R� ( ( ( s1 /usr/lib64/python2.7/site-packages/tornado/web.pyR� �
s R� c B� s e Z d � Z RS( c K� s t j | | � S( N( R R� ( R& t textRA ( ( s1 /usr/lib64/python2.7/site-packages/tornado/web.pyR� �
s ( R� R� R� ( ( ( s1 /usr/lib64/python2.7/site-packages/tornado/web.pyR� �
s R� c B� s e Z d � Z RS( c C� s
| j j � S( N( R R ( R& ( ( s1 /usr/lib64/python2.7/site-packages/tornado/web.pyR� �
s ( R� R� R� ( ( ( s1 /usr/lib64/python2.7/site-packages/tornado/web.pyR� �
s R� c B� s_ e Z d Z d � Z d � Z d � Z d � Z d � Z d � Z d � Z d � Z
d � Z RS(
s� UIModule that simply renders the given template.
{% module Template("foo.html") %} is similar to {% include "foo.html" %},
but the module version gets its own namespace (with kwargs passed to
Template()) instead of inheriting the outer template's namespace.
Templates rendered through this module also get access to UIModule's
automatic javascript/css features. Simply call set_resources
inside the template and give it keyword arguments corresponding to
the methods on UIModule: {{ set_resources(js_files=static_url("my.js")) }}
Note that these resources are output once per template file, not once
per instantiation of the template, so they must not depend on
any arguments to the template.
c C� s, t t | � j | � g | _ i | _ d S( N( R) R� R* t _resource_listt _resource_dict( R& R ( ( s1 /usr/lib64/python2.7/site-packages/tornado/web.pyR* �
s c � s( � � f d � } � j � d | | �S( Nc � sU � � j k r/ � j j | � | � j � <n" � j � | k rQ t d � � n d S( NsC set_resources called with different resources for the same templateR� ( Ri Rh R� Rd ( RA ( R� R& ( s1 /usr/lib64/python2.7/site-packages/tornado/web.pyt
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