�
Ϫ�fV5 � � � d Z g d�ZddlmZ ddlmZmZmZ ddlm Z ddl
m Z dee e
f dee
fd �Z G d
� d e� Z G d � d
e� Z G d� de� Z G d� de� Z G d� de� Z G d� de� Z G d� de� Z G d� de� Z G d� de� Z G d � d e� Z G d � d e� Z G d � d!e� Z G d"� d#e� Z G d$� d%e� Z G d&� d'e� Z y())z+
Exception definitions for L{twisted.web}.
) �Error� PageRedirect�InfiniteRedirection� RenderError�MissingRenderMethod�MissingTemplateLoader�UnexposedMethodError� UnfilledSlot�UnsupportedType�FlattenerError�RedirectWithNoLocation� )�Sequence)�Optional�Union�cast)� nativeString)� RESPONSES�code�returnc �j � t j t | � � S # t t f$ r Y yw xY w)z�
Returns the response message corresponding to an HTTP code, or None
if the code is unknown or unrecognized.
@param code: HTTP status code, for example C{http.NOT_FOUND}.
@return: A string message or none
N)r �get�int�
ValueError�AttributeError)r s �3/usr/lib/python3/dist-packages/twisted/web/error.py�_codeToMessager s1 � ���}�}�S��Y�'�'�� �� '� ���s � �2�2c �| � e Zd ZU dZeed< ee ed< ee ed< d
deeef dee dee ddfd�Z de
fd �Z y) r z�
A basic HTTP error.
@ivar status: Refers to an HTTP status code, for example C{http.NOT_FOUND}.
@param message: A short error message, for example "NOT FOUND".
@ivar response: A complete HTML document for an error page.
�status�message�responseNr r c � � |xs t |� }t j | |||� t |t � rd|fz }n,t |� dk7 s|j
� st d|��� �|| _ || _ || _
y)a-
Initializes a basic exception.
@type code: L{bytes} or L{int}
@param code: Refers to an HTTP status code (for example, 200) either as
an integer or a bytestring representing such. If no C{message} is
given, C{code} is mapped to a descriptive bytestring that is used
instead.
@type message: L{bytes}
@param message: A short error message, for example C{b"NOT FOUND"}.
@type response: L{bytes}
@param response: A complete HTML document for an error page.
s %d� z Not a valid HTTP status code: N) r � Exception�__init__�
isinstancer �len�isdigitr r r r )�selfr r r s r r$ zError.__init__= s{ � �, �1�^�D� 1�����4��w��9� �d�C� � �D�7�?�D�
��Y�!�^�4�<�<�>� � =�d�X� F�G� G��� � �� � ��
� c �l � | j }| j r|d| j z z
}t |� S )N� )r r r )r( �ss r �__str__z
Error.__str__e s/ � � �K�K�� �<�<�
��� � �$� $�A��A�� r) )NN) �__name__�
__module__� __qualname__�__doc__�bytes�__annotations__r r r r$ �strr- � r) r r r . ss � ��
�M�
�e�_� ��u�o� �
$(�$(� &!��C��J� �&!� �%� �&!� �5�/� &!�
� &!�P �� r) r c �b � e Zd ZU dZee ed< d deeef dee dee dee ddf
d�Z y)
r z{
A request resulted in an HTTP redirect.
@ivar location: The location of the redirect which was not followed.
�locationNr r r r c � � t j | |||� | j r|r| j dz |z | _ || _ y)a�
Initializes a page redirect exception.
@type code: L{bytes}
@param code: Refers to an HTTP status code, for example
C{http.NOT_FOUND}. If no C{message} is given, C{code} is mapped to a
descriptive string that is used instead.
@type message: L{bytes}
@param message: A short error message, for example C{b"NOT FOUND"}.
@type response: L{bytes}
@param response: A complete HTML document for an error page.
@type location: L{bytes}
@param location: The location response-header field value. It is an
absolute URI used to redirect the receiver to a location other than
the Request-URI so the request can be completed.
� to N�r r$ r r7 �r( r r r r7 s r r$ zPageRedirect.__init__u s; � �4 ���t�T�7�H�5� �<�<�H� �<�<�'�1�H�<�D�L� ��
r) �NNN�
r. r/ r0 r1 r r2 r3 r r r$ r5 r) r r r l sh � �� �u�o� �
$(�$(�$(� !��C��J� � !� �%� � !� �5�/� !�
�5�/� !�
�
!r) r c �b � e Zd ZU dZee ed< d deeef dee dee dee ddf
d�Z y)
r z�
HTTP redirection is occurring endlessly.
@ivar location: The first URL in the series of redirections which was
not followed.
r7 Nr r r r c � � t j | |||� | j r|r| j dz |z | _ || _ y)at
Initializes an infinite redirection exception.
@param code: Refers to an HTTP status code, for example
C{http.NOT_FOUND}. If no C{message} is given, C{code} is mapped to a
descriptive string that is used instead.
@param message: A short error message, for example C{b"NOT FOUND"}.
@param response: A complete HTML document for an error page.
@param location: The location response-header field value. It is an
absolute URI used to redirect the receiver to a location other than
the Request-URI so the request can be completed.
r9 Nr: r; s r r$ z InfiniteRedirection.__init__� s; � �, ���t�T�7�H�5� �<�<�H� �<�<�'�1�H�<�D�L� ��
r) r< r= r5 r) r r r � sh � �� �u�o� �
$(�$(�$(� !��C��J� �!� �%� �!� �5�/� !�
�5�/� !�
�
!r) r c �H � e Zd ZU dZeed< eed< deeef dededdfd�Zy)r z�
Exception passed to L{ResponseFailed} if we got a redirect without a
C{Location} header field.
@type uri: L{bytes}
@ivar uri: The URI which failed to give a proper location header
field.
@since: 11.1
r �urir r Nc �n � t j | ||� | j dz |z | _ || _ y)a
Initializes a page redirect exception when no location is given.
@type code: L{bytes}
@param code: Refers to an HTTP status code, for example
C{http.NOT_FOUND}. If no C{message} is given, C{code} is mapped to
a descriptive string that is used instead.
@type message: L{bytes}
@param message: A short error message.
@type uri: L{bytes}
@param uri: The URI which failed to give a proper location header
field.
r9 N)r r$ r rA )r( r r rA s r r$ z RedirectWithNoLocation.__init__� s0 � � ���t�T�7�+��|�|�g�-��3�� ���r) ) r. r/ r0 r1 r2 r3 r r r$ r5 r) r r r � s= � � � �N� �J��U�5�#�:� .� �� �U� �t� r) r c �& � e Zd ZdZdZd� Zdefd�Zy)�UnsupportedMethoda^
Raised by a resource when faced with a strange request method.
RFC 2616 (HTTP 1.1) gives us two choices when faced with this situation:
If the type of request is known to us, but not allowed for the requested
resource, respond with NOT_ALLOWED. Otherwise, if the request is something
we don't know how to deal with in any case, respond with NOT_IMPLEMENTED.
When this exception is raised by a Resource's render method, the server
will make the appropriate response.
This exception's first argument MUST be a sequence of the methods the
resource *does* support.
r5 c �v � t j | |g|��� || _ t |t � s t d� �y )Nz`First argument must be a sequence of supported methods, but my first argument is not a sequence.)r# r$ �allowedMethodsr% r � TypeError)r( rF �argss r r$ zUnsupportedMethod.__init__� s@ � ����4� �7�$�7� ,����.�(�3��;��
� 4r) r c � � d| j ��S )NzExpected one of )rF �r( s r r- zUnsupportedMethod.__str__� s � �!�$�"5�"5�!8�9�9r) N)r. r/ r0 r1 rF r$ r4 r- r5 r) r rD rD � s � �
� �N��:�� :r) rD c � � e Zd ZdZy)�SchemeNotSupportedzB
The scheme of a URI was not one of the supported values.
N�r. r/ r0 r1 r5 r) r rL rL � � � �r) rL c � � e Zd ZdZy)r z\
Base exception class for all errors which can occur during template
rendering.
NrM r5 r) r r r � � �r) r c �" � e Zd ZdZd� Zdefd�Zy)r z�
Tried to use a render method which does not exist.
@ivar element: The element which did not have the render method.
@ivar renderName: The name of the renderer which could not be found.
c �N � t j | ||� || _ || _ y �N)r r$ �element�
renderName)r( rT rU s r r$ z MissingRenderMethod.__init__ s" � �� � �T�7�J�7� �� �$��r) r c �x � dj | j j | j | j � S )Nz*{!r}: {!r} had no render method named {!r})�format� __class__r. rT rU rJ s r �__repr__z MissingRenderMethod.__repr__ s0 � �;�B�B� �N�N� #� #� �L�L� �O�O�
�
r) N�r. r/ r0 r1 r$ r4 rY r5 r) r r r s � ��%�
�#�
r) r c �" � e Zd ZdZd� Zdefd�Zy)r z�
L{MissingTemplateLoader} is raised when trying to render an Element without
a template loader, i.e. a C{loader} attribute.
@ivar element: The Element which did not have a document factory.
c �> � t j | |� || _ y rS )r r$ rT )r( rT s r r$ z MissingTemplateLoader.__init__) s � �� � �T�7�+� �� r) r c �N � | j j �d| j �d�S )N�: z had no loader)rX r. rT rJ s r rY z MissingTemplateLoader.__repr__- s% � ��.�.�)�)�,�B�t�|�|�.>�n�M�Mr) NrZ r5 r) r r r ! s � �� �N�#� Nr) r c � � e Zd ZdZy)r zK
Raised on any attempt to get a method which has not been exposed.
NrM r5 r) r r r 1 rN r) r c � � e Zd ZdZy)r zL
During flattening, a slot with no associated data was encountered.
NrM r5 r) r r r 7 rN r) r c � � e Zd ZdZy)r
z_
During flattening, an object of a type which cannot be flattened was
encountered.
NrM r5 r) r r
r
= rP r) r
c � � e Zd ZdZy)�ExcessiveBufferingErrorz�
The HTTP/2 protocol has been forced to buffer an excessive amount of
outbound data, and has therefore closed the connection and dropped all
outbound data.
NrM r5 r) r rc rc D s � �r) rc c �4 � e Zd ZdZd� Zd� Zdefd�Zdefd�Zy)r a
An error occurred while flattening an object.
@ivar _roots: A list of the objects on the flattener's stack at the time
the unflattenable object was encountered. The first element is least
deeply nested object and the last element is the most deeply nested.
c �^ � || _ || _ || _ t j | |||� y rS )�
_exception�_roots�
_tracebackr# r$ )r( � exception�roots� tracebacks r r$ zFlattenerError.__init__U s+ � �#����� �#������4��E�9�=r) c � � ddl m} t |t t f� rEt |� dkD r,t |t � rd}nd}t
|dd |z |dd z � S t
|� S t ||� rO|j �d |j z d
z S d |j |j |j |j fz S t
|� S ) a�
Convert an object from C{self._roots} to a string suitable for
inclusion in a render-traceback (like a normal Python traceback, but
can include "frame" source locations which are not in Python source
files).
@param obj: Any object which can be a render step I{root}.
Typically, L{Tag}s, strings, and other simple Python types.
@return: A string representation of C{obj}.
@rtype: L{str}
r
)�Tag�( z<...>s <...>N� i��zTag <�>z&File "%s", line %d, column %d, in "%s") �twisted.web.templaterm r% r2 r4 r& �ascii�filename�tagName�
lineNumber� columnNumber)r( �objrm �ellipsiss r � _formatRootzFlattenerError._formatRoot[ s� � � -� �c�E�3�<� (� �3�x�"�}� �c�3�'� &�H� '�H� �S��"�X�� 0�3�s�t�9� <�=�=� �S�z�!�
��S�
!��|�|�#� ����,�s�2�2�?��L�L��N�N��$�$��K�K� C� � � ��:� r) r c � � ddl m} | j r?ddj | j D �cg c] }| j |� �� c}� z dz }nd}| j
rJdj || j
� D ��cg c] }|j
� D ] }|�� � c}}� dz }nd}t t d|z |z | j j j z dz t | j � z dz � S c c}w c c}}w ) z�
Present a string representation which includes a template traceback, so
we can tell where this error occurred in the template, as well as in
Python.
r
)� format_listz z
�
� z Exception while flattening:
r^ ) rk r{ rg �joinry rh �
splitlinesr r4 rf rX r. )r( r{ �rrj �entry�linerk s r rY zFlattenerError.__repr__� s" � � *� �;�;��v�{�{����#M�A�D�$4�$4�Q�$7�#M�N�N�QU�U�
� �E� �?�?�� � � &1�� � �%A�� !�$)�$4�$4�$6�� !� �� ��� ��
� �I�� �/���� � �/�/�+�+�4�4�5� � �
�d�o�o�&� '� �
�
�
��# $N��s �C?
� D
c � � t | � S rS )�reprrJ s r r- zFlattenerError.__str__� s � ��D�z�r) N) r. r/ r0 r1 r$ ry r4 rY r- r5 r) r r r L s+ � ��>� * �X)
�#� )
�V�� r) r c � � e Zd ZdZy)�UnsupportedSpecialHeaderzz
A HTTP/2 request was received that contained a HTTP/2 pseudo-header field
that is not recognised by Twisted.
NrM r5 r) r r� r� � rP r) r� N) r1 �__all__�collections.abcr �typingr r r �twisted.python.compatr �twisted.web._responsesr r r2 r r# r r r r rD rL r r r r r r
rc r r� r5 r) r �<module>r� s ��
� �� %� (� (� .� ,� ��s�E�z�*� �x��� � ; �I� ; �|&!�5� &!�R#!�%� #!�L!�U� !�H :� � :�@�� � �)� �
�+�
�*
N�K�
N� �9� � �9� � �i� ��i� �g�Y� g�T�y� r) |