o
    hI]                     @   s   d dl Z d dlZd dlZd dlZd dlZd dlZd dlZd dlZd dl	Zd dl
ZddlmZ ddlmZmZmZ ddlmZmZmZ ddlmZmZmZ ddlmZ dd	lmZ ed
ZdedefddZ G dd de j!Z"G dd deZ#G dd dZ$dS )    N   )AsyncNetworkStream)ConnectionNotAvailableLocalProtocolErrorRemoteProtocolError)OriginRequestResponse)	AsyncLockAsyncSemaphoreAsyncShieldCancellation)Trace   )AsyncConnectionInterfacezhttpcore.http2requestreturnc                 C   s   t dd | jD S )Nc                 s   s,    | ]\}}|  d kp|  dkV  qdS )s   content-length   transfer-encodingNlower.0kv r   U/var/www/html/flask_server/venv/lib/python3.10/site-packages/httpcore/_async/http2.py	<genexpr>   s
    
z#has_body_headers.<locals>.<genexpr>)anyheaders)r   r   r   r   has_body_headers   s   r   c                   @   s   e Zd ZdZdZdZdS )HTTPConnectionStater   r      N)__name__
__module____qualname__ACTIVEIDLECLOSEDr   r   r   r   r   "   s    r   c                   @   sz  e Zd ZdZejjddZ	dDdede	de
je fdd	Zd
edefddZd
eddfddZd
ededdfddZd
ededdfddZd
edededdfddZd
ededdfddZd
edede
jee
je
jeef  f fddZd
edede
je fddZd
edede
jejjejj ejj!f fddZ"	dDd
ede
je ddfd d!Z#d"ejj$ddfd#d$Z%deddfd%d&Z&dEd'd(Z'd
ede
jejj$ fd)d*Z(d
eddfd+d,Z)d
ededefd-d.Z*dede+fd/d0Z,de+fd1d2Z-de+fd3d4Z.de+fd5d6Z/de+fd7d8Z0de1fd9d:Z2de1fd;d<Z3dFd=d>Z4			dGd?e
je
j5e6  d@e
je6 dAe
je7j8 ddfdBdCZ9dS )HAsyncHTTP2Connection   F)validate_inbound_headersNoriginstreamkeepalive_expiryc                 C   s   || _ || _|| _tjj| jd| _tj	| _
d | _d| _t | _t | _t | _t | _d| _d| _d| _i | _d | _d | _d | _d S )N)configr   F)_origin_network_stream_keepalive_expiryh2
connectionH2ConnectionCONFIG	_h2_stater   r%   _state
_expire_at_request_countr
   
_init_lock_state_lock
_read_lock_write_lock_sent_connection_init_used_all_stream_ids_connection_error_events_connection_terminated_read_exception_write_exception)selfr*   r+   r,   r   r   r   __init__,   s(   
zAsyncHTTP2Connection.__init__r   r   c           
         sD  |  |jjstd|jj d| j | j4 I d H & | jtjtj	fv r5|  j
d7  _
d | _tj| _nt W d   I d H  n1 I d H sHw   Y  | j4 I d H  | jsz2d|i}tdt||4 I d H  | jdi |I d H  W d   I d H  n1 I d H sw   Y  W n) ty } zt  |  I d H  W d    |1 sw   Y  |d }~ww d| _d| _| jjj}t|| _t|| j D ]
}| j I d H  qW d   I d H  n1 I d H sw   Y  | j I d H  z| j }g | j|< W n tj j!y   d| _"|  j
d8  _
t w z||d}tdt||4 I d H  | j#||dI d H  W d   I d H  n1 I d H sDw   Y  td	t||4 I d H  | j$||dI d H  W d   I d H  n1 I d H spw   Y  td
t||4 I d H }| j%||dI d H \}}	||	f|_&W d   I d H  n1 I d H sw   Y  t'||	t(| ||dd| j)|ddW S  ty! } zZt 7 d|i}tdt||4 I d H  | j*|dI d H  W d   I d H  n1 I d H sw   Y  W d    n	1 sw   Y  t+|tj j,r| j-rt.| j-t/||d }~ww )NzAttempted to send request to z on connection to r   r   send_connection_initTr   	stream_idsend_request_headerssend_request_bodyreceive_response_headersrH   s   HTTP/2)http_versionnetwork_streamrH   )statusr   content
extensionsrH   response_closedr   )0can_handle_requesturlr*   RuntimeErrorr.   r:   r6   r   r$   r%   r8   r7   r   r9   r=   r   logger_send_connection_initBaseExceptionr   aclose_max_streamsr5   local_settingsmax_concurrent_streamsr   _max_streams_semaphorerangeacquireget_next_available_stream_idr@   r1   
exceptionsNoAvailableStreamIDErrorr>   _send_request_headers_send_request_body_receive_responsereturn_valuer	   HTTP2ConnectionByteStreamr/   _response_closed
isinstanceProtocolErrorrA   r   r   )
rD   r   kwargsexclocal_settings_max_streams_rH   tracerO   r   r   r   r   handle_async_requestU   s   
((

(

***
*

z)AsyncHTTP2Connection.handle_async_requestc                    sn   t jjdt jjjdt jjjdt jjjdid| j_| jjt jjj	= | j
  | jd | |I dH  dS )z
        The HTTP/2 connection requires some initial setup before we can start
        using individual request/response streams on it.
        Tr   d   r(   )clientinitial_values   N)r1   settingsSettingsSettingCodesENABLE_PUSHMAX_CONCURRENT_STREAMSMAX_HEADER_LIST_SIZEr5   r[   ENABLE_CONNECT_PROTOCOLinitiate_connectionincrement_flow_control_window_write_outgoing_data)rD   r   r   r   r   rW      s   




z*AsyncHTTP2Connection._send_connection_initrH   c                    s   t | }dd |jD d }d|jfd|fd|jjfd|jjfgdd |jD  }| jj|||d	 | jjd
|d | 	|I dH  dS )z@
        Send the request headers to a given stream ID.
        c                 S   s    g | ]\}}|  d kr|qS )   hostr   r   r   r   r   
<listcomp>   s     z>AsyncHTTP2Connection._send_request_headers.<locals>.<listcomp>r   s   :methods
   :authoritys   :schemes   :pathc                 S   s(   g | ]\}}|  d vr|  |fqS ))r   r   r   r   r   r   r   r      s    
)
end_streamrt   rL   N)
r   r   methodrT   schemetargetr5   send_headersr}   r~   )rD   r   rH   r   	authorityr   r   r   r   rc      s   


z*AsyncHTTP2Connection._send_request_headersc                    s`   t |sdS t|jtjsJ |j2 z3 dH W }| |||I dH  q6 | ||I dH  dS )zP
        Iterate over the request body sending it to a given stream ID.
        N)r   ri   r+   typingAsyncIterable_send_stream_data_send_end_stream)rD   r   rH   datar   r   r   rd      s   z'AsyncHTTP2Connection._send_request_bodyr   c                    sj   |r3|  ||I dH }tt||}|d| ||d }}| j|| | |I dH  |sdS dS )zI
        Send a single chunk of data in one or more data frames.
        N)_wait_for_outgoing_flowminlenr5   	send_datar~   )rD   r   rH   r   max_flow
chunk_sizechunkr   r   r   r     s   z&AsyncHTTP2Connection._send_stream_datac                    s"   | j | | |I dH  dS )z`
        Send an empty data frame on on a given stream ID with the END_STREAM flag set.
        N)r5   r   r~   )rD   r   rH   r   r   r   r     s   z%AsyncHTTP2Connection._send_end_streamc                    s|   	 |  ||I dH }t|tjjrnqd}g }|jD ]\}}|dkr-t|jddd}q|ds9|	||f q||fS )	zT
        Return the response status code and headers for a given stream ID.
        TN   s   :statusasciiignore)errors   :)
_receive_stream_eventri   r1   eventsResponseReceivedr   intdecode
startswithappend)rD   r   rH   eventstatus_coder   r   r   r   r   r   re     s   
z&AsyncHTTP2Connection._receive_responsec                 C  sf   	 |  ||I dH }t|tjjr)|j}| j|| | |I dH  |j	V  n	t|tjj
r2dS q)z]
        Iterator that returns the bytes of the response body for a given stream ID.
        TN)r   ri   r1   r   DataReceivedflow_controlled_lengthr5   acknowledge_received_datar~   r   StreamEnded)rD   r   rH   r   amountr   r   r   _receive_response_body2  s   
z+AsyncHTTP2Connection._receive_response_bodyc                    sV   | j |s| ||I dH  | j |r| j | d}t|tjjr)t||S )z
        Return the next available event for a given stream ID.

        Will read more data from the network if required.
        Nr   )	r@   get_receive_eventspopri   r1   r   StreamResetr   )rD   r   rH   r   r   r   r   r   B  s   
z*AsyncHTTP2Connection._receive_stream_eventc                    sz  | j 4 I dH  | jdur)| jj}|r$|r$||kr$|  jd8  _t t| j|du s3| j|s| |I dH }|D ]`}t	|t
jjrrtdt|4 I dH }| |I dH  ||_W d  I dH  n1 I dH slw   Y  q=t	|t
jjt
jjt
jjt
jjfr|j| jv r| j|j | q=t	|t
jjr|| _q=W d  I dH  n1 I dH sw   Y  | |I dH  dS )zp
        Read some data from the network until we see one or more events
        for a given stream ID.
        Nr   receive_remote_settings)r;   rA   last_stream_idr8   r   r   r@   r   _read_incoming_datari   r1   r   RemoteSettingsChangedr   rV   _receive_remote_settings_changerf   r   r   r   r   rH   r   ConnectionTerminatedr~   )rD   r   rH   r   r   r   ro   r   r   r   r   S  sH   

(	('z$AsyncHTTP2Connection._receive_eventsr   c                    s   |j tjjj}|rPt|j| jj	j
}|rR|| jkrT|| jkr5| j I d H  |  jd7  _|| jks!|| jk rV| j I d H  |  jd8  _|| jk s:d S d S d S d S d S )Nr   )changed_settingsr   r1   ru   rw   ry   r   	new_valuer5   r[   r\   rZ   r]   releaser_   )rD   r   r\   new_max_streamsr   r   r   r     s*   


z4AsyncHTTP2Connection._receive_remote_settings_changec              	      s  | j  I d H  | j|= | j4 I d H l | jr#| js#|  I d H  n<| jtjkrT| jsjtj	| _| j
d ur?t }|| j
 | _| jru|  I d H  W d   I d H  d S W d   I d H  d S W d   I d H  d S W d   I d H  d S W d   I d H  d S 1 I d H sw   Y  d S N)r]   r   r@   r:   rA   rY   r6   r   r$   r%   r0   time	monotonicr7   r>   )rD   rH   nowr   r   r   rh     s,   
	.z%AsyncHTTP2Connection._response_closedc                    s(   | j   tj| _| j I d H  d S r   )r5   close_connectionr   r&   r6   r/   rY   rD   r   r   r   rY     s   
zAsyncHTTP2Connection.aclosec              
      s   |j di }|dd }| jd ur| jz| j| j|I d H }|dkr*tdW n ty? } z|| _d| _|d }~ww | j	
|}|S )Ntimeoutread    zServer disconnectedT)rQ   r   rB   r/   r   READ_NUM_BYTESr   	Exceptionr?   r5   receive_data)rD   r   timeoutsr   r   rl   r   r   r   r   r     s$   
	z(AsyncHTTP2Connection._read_incoming_datac                    s   |j di }|dd }| j4 I d H : | j }| jd ur#| jz| j||I d H  W n tyC } z|| _d| _	|d }~ww W d   I d H  d S 1 I d H sUw   Y  d S )Nr   writeT)
rQ   r   r<   r5   data_to_sendrC   r/   r   r   r?   )rD   r   r   r   r   rl   r   r   r   r~     s"   

	.z)AsyncHTTP2Connection._write_outgoing_datac                    sb   | j |}| j j}t||}|dkr/| |I dH  | j |}| j j}t||}|dks|S )a  
        Returns the maximum allowable outgoing flow for a given stream.

        If the allowable flow is zero, then waits on the network until
        WindowUpdated frames have increased the flow rate.
        https://tools.ietf.org/html/rfc7540#section-6.9
        r   N)r5   local_flow_control_windowmax_outbound_frame_sizer   r   )rD   r   rH   
local_flowmax_frame_sizeflowr   r   r   r     s   

z,AsyncHTTP2Connection._wait_for_outgoing_flowc                 C   s
   || j kS r   )r.   rD   r*   r   r   r   rS     s   
z'AsyncHTTP2Connection.can_handle_requestc                 C   s2   | j tjko| j o| j o| jjjtj	j
jk S r   )r6   r   r&   r?   r>   r5   state_machinestater1   r2   ConnectionStater   r   r   r   is_available  s   z!AsyncHTTP2Connection.is_availablec                 C   s   t  }| jd uo|| jkS r   )r   r   r7   )rD   r   r   r   r   has_expired  s   z AsyncHTTP2Connection.has_expiredc                 C      | j tjkS r   )r6   r   r%   r   r   r   r   is_idle     zAsyncHTTP2Connection.is_idlec                 C   r   r   )r6   r   r&   r   r   r   r   	is_closed  r   zAsyncHTTP2Connection.is_closedc                 C   s$   t | j}|d| jj d| j S )Nz
, HTTP/2, , Request Count: )strr.   r6   namer8   r   r   r   r   info  s
   
zAsyncHTTP2Connection.infoc              	   C   s6   | j j}t| j}d| d|d| jj d| j d	S )N<z [z, r   z]>)	__class__r!   r   r.   r6   r   r8   )rD   
class_namer*   r   r   r   __repr__  s   
zAsyncHTTP2Connection.__repr__c                    s   | S r   r   r   r   r   r   
__aenter__#  s   zAsyncHTTP2Connection.__aenter__exc_type	exc_value	tracebackc                    s   |   I d H  d S r   )rY   )rD   r   r   r   r   r   r   	__aexit__&  s   zAsyncHTTP2Connection.__aexit__r   r   N)r   r'   )NNN):r!   r"   r#   r   r1   r-   H2Configurationr4   r   r   r   OptionalfloatrE   r   r	   rp   rW   r   rc   rd   bytesr   r   TupleListre   AsyncIteratorr   Unionr   r   r   r   r   r   Eventr   rh   rY   r   r~   r   boolrS   r   r   r   r   r   r   r   r   TyperX   typesTracebackTyper   r   r   r   r   r'   (   s    
)f!
	



0
	


r'   c                   @   sD   e Zd ZdedededdfddZdeje	 fdd	Z
dd
dZdS )rg   r2   r   rH   r   Nc                 C   s   || _ || _|| _d| _d S )NF)_connection_request
_stream_id_closed)rD   r2   r   rH   r   r   r   rE   0  s   
z"HTTP2ConnectionByteStream.__init__c                 C  s   | j | jd}z<tdt| j |4 I d H " | jj| j | jd2 z	3 d H W }|V  q 6 W d   I d H  W d S 1 I d H s=w   Y  W d S  tym } zt  |  I d H  W d    |1 sbw   Y  |d }~ww )NrG   receive_response_body)	r   r   r   rV   r   r   rX   r   rY   )rD   rk   r   rl   r   r   r   	__aiter__8  s&   2
z#HTTP2ConnectionByteStream.__aiter__c              	      s|   | j s<d| _ d| ji}tdt| j|4 I d H  | jj| jdI d H  W d   I d H  d S 1 I d H s5w   Y  d S d S )NTrH   rR   rL   )r   r   r   rV   r   r   rh   )rD   rk   r   r   r   rY   H  s   
.z HTTP2ConnectionByteStream.acloser   )r!   r"   r#   r'   r   r   rE   r   r   r   r   rY   r   r   r   r   rg   /  s    
rg   )%enumloggingr   r   r   	h2.configr1   h2.connection	h2.eventsh2.exceptionsh2.settings_backends.baser   _exceptionsr   r   r   _modelsr   r   r	   _synchronizationr
   r   r   _tracer   
interfacesr   	getLoggerrV   r   r   IntEnumr   r'   rg   r   r   r   r   <module>   s2    
    