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So the only Cache-Control parameters we look at are: no-cache only-if-cached max-age min-fresh �STALE�pragmazno-cacher� � TRANSPARENTr� �only-if-cached�FRESH�dater zmax-age�expiresNz min-fresh) r� rv r� �calendar�timegm�email�utils� parsedate_tz�time�max�int� ValueError) �response_headers�request_headersr� �cc� cc_responser� �now� current_age�freshness_lifetimer� � min_freshr r r �_entry_disposition* sb %�#�!� � � � �r� c C s� |}d}| � |d �}tjtfi |��}z:|dv rKz |t� ��|d�}W n ttjfy8 |t � ��|d�}Y nw t t |��| d< | � |�| d< W |S W |S ttjfyc d}t td�| | |��w )N�content-encoding)�gzip�deflate�zlibr �content-lengthz-content-encodingrU zDContent purported to be compressed with %s but failed to decompress.)r] � functools�partialr r � consume_bytes�IOErrorr� re r rA rc �popr �_)r` � new_content� limit_kwargs�content�encoding_header�encoding� limit_wrapr r r �_decompressContentu s4 � �����r� c s � fdd�}|S )Nc s� � � � D ]4\}}td| d| jd� t|tj�r%t|j| jd�| jd� qtj|| jd|d�}t|�� | jd� qt| jd� d S )Nz%s:r� )�end�file)� maxlinelen)r� r� )r� �charset� header_name)r� �print�_fpr@ r �Headerr� � _maxheaderlen)�self�h�vr� ��msgr r �_write_headers� s z+_bind_write_headers.<locals>._write_headersr )r� r� r r� r �_bind_write_headers� s r� c C sH |r�t | �}t |�}d|v sd|v r|�|� d S tj�� }|�� D ] \}} |dvr.| ||< q"|�dd �} | r\| �� �dd�� d�} | D ]} d| }z| | ||< W qD t y[ Y qDw |j } | dkred } d | }z|� � }W n t y� t|d t|�� |� � }Y nw t�d d |�}d�|�d�|�d�|g�}|�||� d S d S )Nzno-store)�statusr� r( �varyr� rU rV � -varied-%s�0 �� z status: %d r� z (?! )|(?<! ) z � r� )r� �deleter� �message�Messager� r] rv �replacer^ �KeyErrorr� � as_string�UnicodeEncodeError�setattrr� �rer� rw r� �set)r� r� r� �cache�cachekeyr� r� �infor� r� r� � vary_headersr r� � status_header� header_str�textr r r � _updateCache� sD � � � �r� c C s8 t dt�� dd� td�D �f �d���� } | d d� S )N�%s:%sc S s g | ] }d t �dd� �qS )� 0123456789r � )�random� randrange)rQ �ir r r rS � s z_cnonce.<locals>.<listcomp>� r� � )r� r� �ctime�ranger� r� )�digr r r �_cnonce� s "�� r c C s, t �td| ||f �d���� ��� �d�S )Nz%s%s%sr� )�base64� b64encode�_shar� �digestrO r� )�cnonce�iso_now�passwordr r r �_wsse_username_token� s *�r c @ sl e Zd Zdd� Zdd� Zdd� Zdd� Zd d � Zd d � Zd d� Z dd� Z dd� Z dd� Z dd� Z dd� ZdS )�Authenticationc C s. t |�\}} } } } | | _|| _|| _|| _d S �N)rr rz �host� credentials�http) r� r r r} r� r` r� r rx ry rz r{ r| r r r �__init__� s zAuthentication.__init__c C s* t |�\}}}}}|t| j�d � �d�S )Nrs )rr rc rz �count)r� r} rx ry rz r{ r| r r r �depth� s zAuthentication.depthc C s( t |�\}}}}}|| jko|�| j�S r )rr r � startswithrz )r� r r} rx ry rz r{ r| r r r �inscope� s zAuthentication.inscopec C � dS )znModify the request headers to add the appropriate Authorization header. Over-rise this in sub-classes.Nr �r� �methodr} r� r� r r r �request� s zAuthentication.requestc C r )a Gives us a chance to update with new nonces or such returned from the last authorized response. Over-rise this in sub-classes if necessary. Return TRUE is the request is to be retried, for example Digest may return stale=true. Fr )r� r` r� r r r r` � s zAuthentication.responsec C r �NFr �r� r r r r �__eq__� � zAuthentication.__eq__c C r �NTr r r r r �__ne__ r zAuthentication.__ne__c C r r r r r r r �__lt__ r zAuthentication.__lt__c C r r r r r r r �__gt__ r zAuthentication.__gt__c C r r r r r r r �__le__ r zAuthentication.__le__c C r r r r r r r �__ge__ r zAuthentication.__ge__c C r r r �r� r r r �__bool__ r zAuthentication.__bool__N)�__name__� __module__� __qualname__r r r r r` r r r! r" r# r$ r& r r r r r � s r c @ � e Zd Zdd� Zdd� ZdS )�BasicAuthenticationc C � t �| |||||||� d S r �r r �r� r r r} r� r` r� r r r r r � z BasicAuthentication.__init__c C s, dt �d| j �d���� �d� |d< dS )�OModify the request headers to add the appropriate Authorization header.zBasic r� r� � authorizationN)r r r r� rO r� r r r r r s � �zBasicAuthentication.requestN�r' r( r) r r r r r r r+ s r+ c @ s* e Zd ZdZdd� Zd dd�Zdd� ZdS ) �DigestAuthenticationzMOnly do qop='auth' and MD5, since that is all Apache currently implementsc C s� t �| |||||||� t�|d�d | _| j�dd�}ddd� |�� D �v r)dp*d | jd< | jd d u r=ttd| ���| j�dd �� � | jd< | jd d kr[ttd | jd ���d � | j d d | jd d | j d g�| _ d| jd< d S )N�www-authenticater �qopr c S rM r rN rP r r r rS ) rT z1DigestAuthentication.__init__.<locals>.<listcomp>z Unsupported value for qop: %s.� algorithm�MD5�$Unsupported value for algorithm: %s.rU r �:�realmr �nc) r r r �_parse_www_authenticate� challenger] r^ r! r� �upperrw r �A1) r� r r r} r� r` r� r r5 r r r r % s $�(z DigestAuthentication.__init__Nc s� dd� � � fdd�}d� |d|g�}|pt� | jd< d|� | j�d| jd d | jd | jd | jd � |�f � }d | jd | jd | jd || jd || jd | jd | jd f |d< | j�d�rr|d d| jd 7 < | jd d7 < dS )�Modify the request headersc S s t | �d���� S r� )r� r� r� )rR r r r �<lambda>6 s z.DigestAuthentication.request.<locals>.<lambda>c s � d| |f �S )Nr� r )r� �d��Hr r rA 7 s rU r9 r z"%s"�%s:%s:%s:%s:%s�noncez%08xr; r5 zoDigest username="%s", realm="%s", nonce="%s", uri="%s", algorithm=%s, response=%s, qop=%s, nc=%08x, cnonce="%s"r r: r6 r1 �opaquez , opaque="%s"r N)rw r r= r? r r] ) r� r r} r� r� r �KD�A2�request_digestr rC r r 4 s< ��� �� z DigestAuthentication.requestc C sz d|vr%t �|d��di �}d|�d�kr#|d | jd< d| jd< d S d S t �|d�}d |v r;|d | jd< d| jd< d S ) Nzauthentication-infor4 r �true�stalerF r r; T� nextnonceF)r r< r] r= �_parse_authentication_info)r� r` r� r= �updated_challenger r r r` X s � z DigestAuthentication.responser )r' r( r) �__doc__r r r` r r r r r3 ! s $r3 c @ s, e Zd ZdZdZdd� Zdd� Zdd� Zd S ) �HmacDigestAuthenticationz@Adapted from Robert Sayre's code and DigestAuthentication above.r c C s� t �| |||||||� t�|d�}|d | _| j�dd�| jd< | jd dvr-d| jd< | j�dd�| jd< | j�d�sCttd ���| j�d d �| jd < | jd d vr_ttd | jd ���| j�dd�| jd< | jd dvr{ttd| jd ���| jd dkr�t| _ nt | _ | jd dkr�t| _ nt | _ d� | j d d| j �d� | j d | jd g���� �� d| jd g�| _| j �| j��� �� | _d S )Nr4 � hmacdigest�reason� unauthorized)rT � integrity�saltrU �snoncezCThe challenge doesn't contain a server nonce, or this one is empty.r6 � HMAC-SHA-1)rX �HMAC-MD5r8 z pw-algorithm�SHA-1)rZ r7 z'Unsupported value for pw-algorithm: %s.rY r7 r r9 r r: )r r r r< r= r] r" r� r� �hashmodr � pwhashmodrw r �newr� rv r� ) r� r r r} r� r` r� r r= r r r r m sH ���(�� z!HmacDigestAuthentication.__init__c s� t � �}d�dd� |D ��}d�� fdd�|D ��}t�dt�� �}t� } d||| | jd |f } t�| j | | j �� � � � } d| j d | jd | jd | ||| |f � d < d S ) r@ rU c S s g | ]}d | �qS )z%s r �rQ �kr r r rS � rT z4HmacDigestAuthentication.request.<locals>.<listcomp>c s g | ]}� | �qS r r r^ r� r r rS � rT �%Y-%m-%dT%H:%M:%SZrE rW zsHMACDigest username="%s", realm="%s", snonce="%s", cnonce="%s", uri="%s", created="%s", response="%s", headers="%s"r r: r1 N)ra rw r� �strftime�gmtimer r= �hmacr] r� r[ r� rv r ) r� r r} r� r� r_ �keylist� headers_val�createdr rJ r r� r r � s$ � �z HmacDigestAuthentication.requestc C s* t �|d��di �}|�d�dv rdS dS )Nr4 rR rS )rU rL TF)r r< r] )r� r` r� r= r r r r` � s z!HmacDigestAuthentication.responseN)r' r( r) rP � __author__r r r` r r r r rQ h s * rQ c @ � e Zd ZdZdd� Zdd� ZdS )�WsseAuthenticationa� This is thinly tested and should not be relied upon. At this time there isn't any third party server to test against. Blogger and TypePad implemented this algorithm at one point but Blogger has since switched to Basic over HTTPS and TypePad has implemented it wrong, by never issuing a 401 challenge but instead requiring your client to telepathically know that their endpoint is expecting WSSE profile="UsernameToken".c C r, r r- r. r r r r � r/ zWsseAuthentication.__init__c C sN d|d< t �dt �� �}t� }t||| jd �}d| jd |||f |d< dS ) r0 z WSSE profile="UsernameToken"r1 r` r zJUsernameToken Username="%s", PasswordDigest="%s", Nonce="%s", Created="%s"r zX-WSSEN)r� ra rb r r r )r� r r} r� r� r r �password_digestr r r r � s �zWsseAuthentication.requestN)r' r( r) rP r r r r r r ri � s ri c @ r* )�GoogleLoginAuthenticationc C s� ddl m} t�| |||||||� | �|d�} | d �dd�} | dkr-|�d�dkr-d} t|d |d | |d d �} | jj d d || �ddid�\} }|� d�} tdd� | D ��}| j dkrcd| _ d S |d | _ d S )Nr )� urlencoder4 � googlelogin�service�xapir� �clr � user-agent)�Email�Passwdrn �sourcez+https://www.google.com/accounts/ClientLogin�POSTz Content-Typez!application/x-www-form-urlencoded)r �bodyr� � c S s g | ] }|rt |�d d���qS )r� r )r� r^ )rQ �liner r r rS � s z6GoogleLoginAuthentication.__init__.<locals>.<listcomp>i� rU �Auth) � urllib.parserl r r r< r] r� r� r r r^ r� ry )r� r r r} r� r` r� r rl r r= rn �resp�linesrB r r r r � s$ � z"GoogleLoginAuthentication.__init__c C s d| j |d< dS )r0 zGoogleLogin Auth=r1 N)ry r r r r r � s z!GoogleLoginAuthentication.requestNr2 r r r r rk � s rk )�basic�wsser rR rm )rR rm r r~ r} c @ s4 e Zd ZdZefdd�Zdd� Zdd� Zdd � Zd S ) � FileCachez�Uses a local directory as a store for cached files. Not really safe to use if multiple threads or processes are going to be running on the same cache. c C s, || _ || _tj�|�st�| j � d S d S r )r� �safe�osrz �exists�makedirs)r� r� r� r r r r s �zFileCache.__init__c C sP d }t j�| j| �|��}zt|d�}|�� }|�� W |S ty' Y |S w )N�rb) r� rz rw r� r� �open�read�closer� )r� r� r� � cacheFullPath�fr r r r] s ��z FileCache.getc C s6 t j�| j| �|��}t|d�}|�|� |�� d S )N�wb)r� rz rw r� r� r� �writer� )r� r� r� r� r� r r r r� s z FileCache.setc C s4 t j�| j| �|��}t j�|�rt �|� d S d S r )r� rz rw r� r� r� �remove)r� r� r� r r r r� s �zFileCache.deleteN) r' r( r) rP r� r r] r� r� r r r r r � s r c @ s. e Zd Zdd� Zd dd�Zdd� Zdd � Zd S ) � Credentialsc C � g | _ d S r �r r% r r r r # � zCredentials.__init__rU c C s | j �|�� ||f� d S r �r �appendrv �r� r� r �domainr r r �add& s zCredentials.addc C r� r r� r% r r r �clear) r� zCredentials.clearc c s2 � | j D ]\}}}|dks||kr||fV qd S �NrU r� )r� r� �cdomainr� r r r r �iter, s � ��zCredentials.iterN�rU )r' r( r) r r� r� r� r r r r r� " s r� c @ rh )�KeyCertszNIdentical to Credentials except that name/password are mapped to key/cert.c C s | j �|�� |||f� d S r r� �r� r� �certr� r r r r r� 6 r/ z KeyCerts.addc c s6 � | j D ]\}}}}|dks||kr|||fV qd S r� r� )r� r� r� r� r� r r r r r� 9 s � ��z KeyCerts.iterN)r' r( r) rP r� r� r r r r r� 2 s r� c @ s e Zd ZdS )�AllHostsN)r' r( r) r r r r r� ? s r� c @ sH e Zd ZdZdZ ddd�Zdd� Zd d � Zd d � Zd d� Z dd� Z dS )r z,Collect information required to use a proxy.r TNc C sV t |t�r |�� }t |t�r|�� }|||||||f\| _| _| _| _| _| _| _ dS )a� Args: proxy_type: The type of proxy server. This must be set to one of socks.PROXY_TYPE_XXX constants. For example: p = ProxyInfo(proxy_type=socks.PROXY_TYPE_HTTP, proxy_host='localhost', proxy_port=8000) proxy_host: The hostname or IP address of the proxy server. proxy_port: The port that the proxy server is running on. proxy_rdns: If True (default), DNS queries will not be performed locally, and instead, handed to the proxy to resolve. This is useful if the network does not allow resolution of non-local names. In httplib2 0.9 and earlier, this defaulted to False. proxy_user: The username used to authenticate with the proxy server. proxy_pass: The password used to authenticate with the proxy server. proxy_headers: Additional or modified headers for the proxy connect request. 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NFc C s� || _ || _|| _|| _|| _i | _|r t|t�r t|�| _ n|| _ t � | _ t � | _ g | _d| _t| _ddg| _tt�| _d| _d| _d| _|| _d| _tt t |d�t t | d�t t | d�t t | d�d �} d d � | � � D �| _ d S ) a� If 'cache' is a string then it is used as a directory name for a disk cache. Otherwise it must be an object that supports the same interface as FileCache. All timeouts are in seconds. If None is passed for timeout then Python's default timeout for sockets will be used. See for example the docs of socket.setdefaulttimeout(): http://docs.python.org/library/socket.html#socket.setdefaulttimeout `proxy_info` may be: - a callable that takes the http scheme ('http' or 'https') and returns a ProxyInfo instance per request. By default, uses proxy_info_from_environment. - a ProxyInfo instance (static proxy config). - None (proxy disabled). ca_certs is the path of a file containing root CA certificates for SSL server certificate validation. By default, a CA cert file bundled with httplib2 is used. 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