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This is a web server which integrates with the twisted.internet infrastructure.
@var NOT_DONE_YET: A token value which L{twisted.web.resource.IResource.render}
implementations can return to indicate that the application will later call
C{.write} and C{.finish} to complete the request, and that the HTTP
connection should be left open.
@type NOT_DONE_YET: Opaque; do not depend on any particular type for this
value.
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An HTTP request.
@ivar defaultContentType: A L{bytes} giving the default I{Content-Type}
value to send in responses if no other value is set. L{None} disables
the default.
@ivar _insecureSession: The L{Session} object representing state that will
be transmitted over plain-text HTTP.
@ivar _secureSession: The L{Session} object representing the state that
will be transmitted only over HTTPS.
� text/htmlN�prepath�postpathzunusednames=issuerFc O s* t jj| g|�R i |�� tj�| � d S �N)r r �__init__r �
Componentized)�selfr1 �kwr3 r3 r4 rD s s zRequest.__init__c C s� | j �� }|d= |d= |d= |d= | j�dd� | j�� |d< t|| �|d< t|d �|d< t|d �|d < t|d
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< |S ) N� transport�channel�content�siter � content_data�remoter9 �client�requestHeaders) �__dict__�copyrJ �seek�readr r? �list�getAllRawHeaders)rF �issuer�xr3 r3 r4 �getStateToCopyForw s
zRequest.getStateToCopyForc C s | j r t| j �d | S |S )z�
Return the text that links to a sibling of the requested resource.
@param name: The sibling resource
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� ../)rB �len)rF r< r3 r3 r4 �sibLink� s
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Return the text that links to a child of the requested resource.
@param name: The child resource
@type name: C{bytes}
@return: A relative URL.
@rtype: C{bytes}
r rY ���� /)rZ rB rA )rF r< �lppr3 r3 r4 � childLink� s
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Called when HTTP channel got length of content in this request.
This method is not intended for users.
@param length: The length of the request body, as indicated by the
request headers. L{None} if the request headers do not indicate a
length.
N)rI rK �getContentFile�AttributeErrorr r � gotLengthrJ )rF �lengthr` r3 r3 r4 rb � s
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Process a request.
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and call L{self.render()<Request.render()>} with it.
@see: L{Site.getResourceFor()}
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Write data to the transport (if not responding to a HEAD request).
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Override C{http.Request.finish} for possible encoding.
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zRequest.finishc C sZ z|� | �}W n� ty� } z�|j}| jdkr\d|v r\| jjd|d� d| _d| _|� | �}|tu r;| jjd|d� n | �ddt |�f � d | _d| _| �
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Ask a resource to render itself.
If the resource does not support the requested method,
generate a C{NOT IMPLEMENTED} or C{NOT ALLOWED} response.
@param resrc: The resource to render.
@type resrc: L{twisted.web.resource.IResource}
@see: L{IResource.render()<twisted.web.resource.IResource.render()>}
r+ r* z,Using GET to fake a HEAD request for {resrc})rt TzBTried to fake a HEAD request for {resrc}, but it got away from me.rx � %dF� N� Allows , zzYour browser approached me (at %(URI)s) with the method "%(method)s". I only allow the method%(plural)s %(allowed)s here.r �s� z, c S s g | ]}t |��qS r3 )r )�.0rW r3 r3 r4 �
<listcomp>O s z"Request.render.<locals>.<listcomp>)�URI�method�plural�allowedzMethod Not AllowedzHuh?z'I don't know how to treat a %s request.r, z Request did not return bytesz Request: z<br />z
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Finish this request with an indication that processing failed and
possibly display a traceback.
@param reason: Reason this request has failed.
@type reason: L{twisted.python.failure.Failure}
@return: The reason passed to this method.
@rtype: L{twisted.python.failure.Failure}
r� )r s� <html><head><title>web.Server Traceback (most recent call last)</title></head><body><b>web.Server Traceback (most recent call last):</b>
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zRequest.processingFailedc C � | � |� dS )z(Remote version of write; same interface.N)r� )rF rV r� r3 r3 r4 �
view_write� � zRequest.view_writec C s | � � dS )z)Remote version of finish; same interface.N)r� �rF rV r3 r3 r4 � view_finish� s zRequest.view_finishc K s | j ||fi |�� dS )z,Remote version of addCookie; same interface.N)� addCookie)rF rV �k�vr2 r3 r3 r4 �view_addCookie� s zRequest.view_addCookiec C � | � ||� dS )z,Remote version of setHeader; same interface.N)re )rF rV r� r� r3 r3 r4 �view_setHeader� s zRequest.view_setHeaderc C r� )z2Remote version of setLastModified; same interface.N)�setLastModified)rF rV �whenr3 r3 r4 �view_setLastModified� r� z Request.view_setLastModifiedc C r� )z*Remote version of setETag; same interface.N)�setETag)rF rV �tagr3 r3 r4 � view_setETag� r� zRequest.view_setETagc C r� )zD
Remote version of setResponseCode; same interface.
N)r� )rF rV r{ �messager3 r3 r4 �view_setResponseCode� � z Request.view_setResponseCodec C s | � t|�|� dS )zbRemote version of registerProducer; same interface.
(requires a remote producer.)
N)�registerProducer�_RemoteProducerWrapper)rF rV �producer� streamingr3 r3 r4 �view_registerProducer� s z Request.view_registerProducerc C s | � � d S rC )�unregisterProducerr� r3 r3 r4 �view_unregisterProducer� � z Request.view_unregisterProducerc C s | � � r| jS | jS )a�
If a session has already been created or looked up with
L{Request.getSession}, this will return that object. (This will always
be the session that matches the security of the request; so if
C{forceNotSecure} is used on a secure request, this will not return
that session.)
@return: the session attribute
@rtype: L{Session} or L{None}
)�isSecure�_secureSession�_insecureSession�rF r3 r3 r4 �session� s zRequest.sessionc C s� | � � o| }|sd}d}nd}d}t| |�}|dur/z|�� W n
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Check if there is a session cookie, and if not, create it.
By default, the cookie with be secure for HTTPS requests and not secure
for HTTP requests. If for some reason you need access to the insecure
cookie from a secure request you can set C{forceNotSecure = True}.
@param forceNotSecure: Should we retrieve a session that will be
transmitted over HTTP, even if this L{Request} was delivered over
HTTPS?
@type forceNotSecure: L{bool}
s TWISTED_SESSIONr� s TWISTED_SECURE_SESSIONr� N� _r] )rh �secure)r� �getattr�touchr
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getSession�KeyError� makeSessionr� �uid�setattr� getComponent) rF �sessionInterface�forceNotSecurer� � cookieString�sessionAttributer� �
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zRequest.getSessionc C st | � � j}| �� r d}nd}||krd}nd| }td| �� r!dp"dt| �� �|f �}d�dd � |D ��}|| S )
Ni� �P r� z:%dzhttp%s://%s%s/r� r] c S s g | ]}t |d d��qS )r� )�safer )r� �segmentr3 r3 r4 r� ' s z'Request._prePathURL.<locals>.<listcomp>)�getHostr: r� r r �getRequestHostnamer� )rF rA r: �default�hostport�prefixrh r3 r3 r4 � _prePathURL s"
���zRequest._prePathURLc C s | � | j�S rC )r� rA r� r3 r3 r4 �
prePathURL* r� zRequest.prePathURLc C s ddl m} |j�| �S )Nr )�urlpath)�twisted.pythonr� �URLPath� fromRequest)rF r� r3 r3 r4 r� - s zRequest.URLPathc C s | � | jdd� �}|| _dS )z_
Remember the currently-processed part of the URL for later
recalling.
Nr\ )r� rA �
appRootURL)rF �urlr3 r3 r4 �rememberRootURL2 s
zRequest.rememberRootURLc C s | j S )zn
Get a previously-remembered URL.
@return: An absolute URL.
@rtype: L{bytes}
)r� r� r3 r3 r4 �
getRootURL: s zRequest.getRootURLc C sH | j dkr | �tj� n | �tj� | �dd� | �dd� | �� dS )a�
Handle receiving a request whose path is '*'.
RFC 7231 defines an OPTIONS * request as being something that a client
can send as a low-effort way to probe server capabilities or readiness.
Rather than bother the user with this, we simply fast-path it back to
an empty 200 OK. Any non-OPTIONS verb gets a 405 Method Not Allowed
telling the client they can only use OPTIONS.
s OPTIONSr� s Content-Lengthry N)r� r� r �OKr� re r� r� r3 r3 r4 rj C s
zRequest._handleStarrC )NF)0�__name__�
__module__� __qualname__�__doc__r� rK r� rA r r r� �__annotations__rB �
__pychecker__r� ro r r� rD rX r[ r_ rb rv r� r� rp rr r� r� r� r� r� r� r� r� r� r� r� �propertyr� r� r� r� r� r� r� rj r3 r3 r3 r4 r X sR
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@cvar compressLevel: The compression level used by the compressor, default
to 9 (highest).
@since: 12.3
s (:?^|[\s,])gzip(:?$|[\s,])� c C sf d� |j�dg ��}| j�|�r1|j�d�}|r!d� |dg �}nd}|j�d|g� t| j|�S dS )zo
Check the headers if the client accepts gzip encoding, and encodes the
request if so.
� ,s accept-encodings content-encodings gzipN) r� rO r �_gzipCheckRegex�searchr~ r� � _GzipEncoder�
compressLevel)rF �request�
acceptHeaders�encodingr3 r3 r4 �encoderForRequeste s � �z$GzipEncoderFactory.encoderForRequestN) r� r� r� r� �re�compiler� r� r r3 r3 r3 r4 r% Y s
r% c @ s, e Zd ZdZdZdd� Zdd� Zdd� ZdS ) r� z�
An encoder which supports gzip.
@ivar _zlibCompressor: The zlib compressor instance used to compress the
stream.
@ivar _request: A reference to the originating request.
@since: 12.3
Nc C s" t �|t jdt j �| _|| _d S )N� )�zlib� compressobj�DEFLATED� MAX_WBITS�_zlibCompressor�_request)rF r� r� r3 r3 r4 rD � s �
z_GzipEncoder.__init__c C s" | j js | j j�d� | j�|�S )zR
Write to the request, automatically compressing data on the fly.
rx )r rz r~ � removeHeaderr �compressr� r3 r3 r4 r/ � s z_GzipEncoder.encodec C s | j �� }d| _ |S )zf
Finish handling the request request, flushing any data from the zlib
buffer.
N)r �flush)rF �remainr3 r3 r4 r� � s
z_GzipEncoder.finish)r� r� r� r� r rD r/ r� r3 r3 r3 r4 r� x s
r� c @ s e Zd Zdd� ZdS )r� c C s( |� d�| _|� d�| _|� d�| _d S )N�resumeProducing�pauseProducing�
stopProducing)� remoteMethodr r r )rF rM r3 r3 r4 rD � s z _RemoteProducerWrapper.__init__N)r� r� r� rD r3 r3 r3 r4 r� � s r� c sJ e Zd ZdZdZdZd� fdd� Zdd� Zdd � Zd
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A user's session with a system.
This utility class contains no functionality, but is used to
represent a session.
@ivar site: The L{Site} that generated the session.
@type site: L{Site}
@ivar uid: A unique identifier for the session.
@type uid: L{bytes}
@ivar _reactor: An object providing L{IReactorTime} to use for scheduling
expiration.
@ivar sessionTimeout: Time after last modification the session will expire,
in seconds.
@type sessionTimeout: L{float}
@ivar lastModified: Time the C{touch()} method was last called (or time the
session was created). A UNIX timestamp as returned by
L{IReactorTime.seconds()}.
@type lastModified: L{float}
i� Nc sB t � �� |du r |j}|| _|| _|| _g | _| �� i | _dS )z�
Initialize a session with a unique ID for that session.
@param reactor: L{IReactorTime} used to schedule expiration of the
session. If C{None}, the reactor associated with I{site} is used.
N) �superrD �reactor�_reactorrK r� �expireCallbacksr� �sessionNamespaces)rF rK r� r �� __class__r3 r4 rD � s
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Start expiration tracking.
@return: L{None}
N)r � callLater�sessionTimeout�expire� _expireCallr� r3 r3 r4 �startCheckingExpiration� s z Session.startCheckingExpirationc C s | j �|� dS )zJ
Call this callback when the session expires or logs out.
N)r �append)rF �callbackr3 r3 r4 �notifyOnExpire� r� zSession.notifyOnExpirec C sP | j j| j= | jD ]}|� q g | _| jr$| j�� r&| j�� d| _dS dS dS )z/
Expire/logout of the session.
N)rK �sessionsr� r r �active�cancel)rF �cr3 r3 r4 r � s
�zSession.expirec C s, | j �� | _| jdur| j�| j� dS dS )zN
Mark the session as modified, which resets expiration timer.
N)r �seconds� lastModifiedr �resetr r� r3 r3 r4 r� � s
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Session.touchrC ) r� r� r� r� r r rD r r r r� �
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A web site: manage log, sessions, and resources.
@ivar requestFactory: A factory which is called with (channel)
and creates L{Request} instances. Default to L{Request}.
@ivar displayTracebacks: If set, unhandled exceptions raised during
rendering are returned to the client as HTML. Default to C{False}.
@ivar sessionFactory: factory for sessions objects. Default to L{Session}.
@ivar sessions: Mapping of session IDs to objects returned by
C{sessionFactory}.
@type sessions: L{dict} mapping L{bytes} to L{Session} given the default
C{sessionFactory}
@ivar counter: The number of sessions that have been generated.
@type counter: L{int}
@ivar sessionCheckTime: Deprecated and unused. See
L{Session.sessionTimeout} instead.
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@param resource: The root of the resource hierarchy. All request
traversal for requests received by this factory will begin at this
resource.
@type resource: L{IResource} provider
@param requestFactory: Overwrite for default requestFactory.
@type requestFactory: C{callable} or C{class}.
@see: L{twisted.web.http.HTTPFactory.__init__}
N)r rD r! r �requestFactory)rF r r) r1 r2 r r3 r4 rD s
�z
Site.__init__c C s( ddl m} |�tj�|�tj�|��S )Nr )�logfile)r� r* �LogFile�osrh �basename�dirname)rF rh r* r3 r3 r4 � _openLogFile1 s zSite._openLogFilec C s | j �� }i |d< |S )Nr! )rP rQ )rF �dr3 r3 r4 � __getstate__6 s
zSite.__getstate__c C s | j d | _ t| �d��S )zP
(internal) Generate an opaque, unique ID for a user's session.
r � )�counterr �_entropyr� r3 r3 r4 �_mkuid; s z Site._mkuidc C s* | � � }| �| |� }| j|< |�� |S )zU
Generate a new Session instance, and store it for future reference.
)r5 �sessionFactoryr! r )rF r� r� r3 r3 r4 r� B s zSite.makeSessionc C s
| j | S )z�
Get a previously generated session.
@param uid: Unique ID of the session.
@type uid: L{bytes}.
@raise KeyError: If the session is not found.
)r! )rF r� r3 r3 r4 r� K s
zSite.getSessionc s t � �|�}| j|_| |_|S )z;
Generate a channel attached to this site.
)r �
buildProtocolr) rK )rF r> rI r r3 r4 r7 V s zSite.buildProtocolc C s |� |�� d � |�� dS )z@
Redirect because a Site is always a directory.
r] N)�redirectr� r� �rF r� r3 r3 r4 rp a s z Site.renderc C s | |_ | j�||�S )z7
Emulate a resource's getChild method.
)rK r �getChildWithDefault)rF �pathElr� r3 r3 r4 r: h s zSite.getChildWithDefaultc C s" | |_ t�|j�|_t�| j|�S )z�
Get a resource for a request.
This iterates through the resource hierarchy, calling
getChildWithDefault on each resource it finds for a path element,
stopping when it hits an element where isLeaf is true.
)rK rQ rA r� r �getChildForRequestr9 r3 r3 r4 rk o s zSite.getResourceForc C s dg}t jr |�dd� |S )z2
Protocols this server can speak.
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