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Raises a URLError (subclass of OSError); for HTTP errors, raises an HTTPError, which can also be treated as a valid response. build_opener -- Function that creates a new OpenerDirector instance. Will install the default handlers. Accepts one or more Handlers as arguments, either instances or Handler classes that it will instantiate. If one of the argument is a subclass of the default handler, the argument will be installed instead of the default. install_opener -- Installs a new opener as the default opener. objects of interest: OpenerDirector -- Sets up the User Agent as the Python-urllib client and manages the Handler classes, while dealing with requests and responses. Request -- An object that encapsulates the state of a request. The state can be as simple as the URL. It can also include extra HTTP headers, e.g. a User-Agent. BaseHandler -- internals: BaseHandler and parent _call_chain conventions Example usage: import urllib.request # set up authentication info authinfo = urllib.request.HTTPBasicAuthHandler() authinfo.add_password(realm='PDQ Application', uri='https://mahler:8092/site-updates.py', user='klem', passwd='geheim$parole') proxy_support = urllib.request.ProxyHandler({"http" : "http://ahad-haam:3128"}) # build a new opener that adds authentication and caching FTP handlers opener = urllib.request.build_opener(proxy_support, authinfo, urllib.request.CacheFTPHandler) # install it urllib.request.install_opener(opener) f = urllib.request.urlopen('http://www.python.org/') � N)�URLError� HTTPError�ContentTooShortError)�urlparse�urlsplit�urljoin�unwrap�quote�unquote� splittype� splithost� splitport� splituser� splitpasswd� splitattr� splitquery� splitvalue�splittag�to_bytes�unquote_to_bytes� urlunparse)� addinfourl� addclosehookFT�Request�OpenerDirector� BaseHandler�HTTPDefaultErrorHandler�HTTPRedirectHandler�HTTPCookieProcessor� ProxyHandler�HTTPPasswordMgr� HTTPPasswordMgrWithDefaultRealm� HTTPPasswordMgrWithPriorAuth�AbstractBasicAuthHandler�HTTPBasicAuthHandler�ProxyBasicAuthHandler�AbstractDigestAuthHandler�HTTPDigestAuthHandler�ProxyDigestAuthHandler� HTTPHandler� FileHandler� FTPHandler�CacheFTPHandler� DataHandler�UnknownHandler�HTTPErrorProcessor�urlopen�install_opener� build_opener� pathname2url� url2pathname� getproxies� urlretrieve� urlcleanup� URLopener�FancyURLopenerz%d.%d� )�cafile�capath� cadefault�contextc C s� |s |s |rfddl }|�dtd� |dk r2td��ts>td��tjtjj||d�}t |d�}t |�} n0|r~t |d�}t |�} nt dkr�t � a } nt } | � | ||�S ) a$ Open the URL url, which can be either a string or a Request object. *data* must be an object specifying additional data to be sent to the server, or None if no such data is needed. 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This function always returns an object which can work as a context manager and has methods such as * geturl() - return the URL of the resource retrieved, commonly used to determine if a redirect was followed * info() - return the meta-information of the page, such as headers, in the form of an email.message_from_string() instance (see Quick Reference to HTTP Headers) * getcode() - return the HTTP status code of the response. Raises URLError on errors. For HTTP and HTTPS URLs, this function returns a http.client.HTTPResponse object slightly modified. In addition to the three new methods above, the msg attribute contains the same information as the reason attribute --- the reason phrase returned by the server --- instead of the response headers as it is specified in the documentation for HTTPResponse. For FTP, file, and data URLs and requests explicitly handled by legacy URLopener and FancyURLopener classes, this function returns a urllib.response.addinfourl object. 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The last 30x error message was: N) r� r� r� r� r� r� r �http_error_301�http_error_303�http_error_307r� rL rL rL rM r � s &< c C s� t | �\}}|�d�s d}| }n:|�d�s6td| ��|�dd�}|dkrNd}|d|� }t|�\}}|dk r|t|�\}}nd }}||||fS )a Return (scheme, user, password, host/port) given a URL or an authority. If a URL is supplied, it must have an authority (host:port) component. 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Derived class can override this, or provide specific handlers named http_error_DDD where DDD is the 3-digit error code.z http_error_%dN)r� r� r� ) r rH rc �errcode�errmsgrd rI rZ r~ rf rL rL rM r� � s zURLopener.http_errorc C s |� � t||||d��dS )z>Default error handler: close the connection and raise OSError.N)r� r )r rH rc r� r� rd rL rL rM r� � s z URLopener.http_error_defaultc C s t jj|| j| jd�S )N)r� r� )r� r� r� r� r� )r ru rL rL rM �_https_connection� s zURLopener._https_connectionc C s | � | j||�S )zUse HTTPS protocol.)r� r� )r rH rI rL rL rM � open_https� s zURLopener.open_httpsc C s^ t |t�std��|dd� dkrP|dd� dkrP|dd� �� dkrPtd ��n | �|�S dS ) z/Use local file or FTP depending on form of URL.zEfile error: proxy support for file protocol currently not implementedNr: z//r6 r� � z localhost/z-file:// scheme is supported only on localhost)r� r� r rs rB r� )r rH rL rL rM � open_file� s 4 zURLopener.open_filec C s\ ddl }ddl}t|�\}}t|�}yt�|�}W n0 tk rb } zt|j|j ��W dd}~X Y nX |j } |j j |j dd�} |�|�d } |�d| p�d| | f �} |s�|} |dd� dkr�d | } tt|d �| | �S t|�\}}|�sPt�|�t� ft� k�rP|} |dd� dk�r d | } n |dd � d k�r>td | ��tt|d �| | �S td��dS )zUse local file.r NT)r� z6Content-Type: %s Content-Length: %d Last-modified: %s z text/plainrR r� zfile://r� r: z./zAlocal file url may start with / or file:. Unknown url of type: %sz#local file error: not on local host)r� r� r r4 rV r� rl r �strerrorra r� r� r� r� r� r� r rG r r� r� r� �thishostrB )r rH r� r� ru rN Z localnamer� �erh r� r� rd Zurlfiler) rL rL rM r� � s: zURLopener.open_local_filec C s� t |t�std��ddl}t|�\}}|s2td��t|�\}}t|�\}}|r\t|�\}}nd}t|�}t|ppd�}t|p|d�}t � |�}|s�ddl }|j }nt |�}t|�\}} t|�}|�d�} | dd� | d } } | r�| d s�| dd� } | �r | d �s d| d< |||d�| �f} t| j�tk�rfx8t| j�D ]*} | | k�r8| j| }| j| = |�� �q8W y�| | jk�r�t||||| �| j| < | �s�d }nd }x:| D ]2}t|�\}}|�� d k�r�|d k�r�|�� }�q�W | j| �| |�\}}|�d | �d }d}|�r|d| 7 }|dk �r4|dk�r4|d| 7 }t � |�}t ||d | �S t � k �r� } z td| �� t!�"� d ��W dd}~X Y nX dS )zUse FTP protocol.zCftp error: proxy support for ftp protocol currently not implementedr Nzftp error: no host givenrm r� rQ rR r� rK r� )r� r� r� rK rs r� zftp:zContent-Type: %s zContent-Length: %d z ftp error %rr: )#r� r� r r� r r r r r r� r� r� r� r] r r; r� r_ r� � MAXFTPCACHEr� r� r� r rs r� r� r� r� r� r � ftperrorsr� r� r� )r rH r� ru rW r) r r r� r� r� rN r� r� r� r� r� r� rc r� r� rd r� rL rL rM �open_ftp� sp zURLopener.open_ftpc C s< t |t�std��y|�dd�\}}W n tk rD tdd��Y nX |sNd}|�d�}|dkr�d ||d � kr�||d d � }|d |� }nd }g }|�d t� d t� t�� �� � |�d| � |dkr�t � |� d���d�}nt|�}|�dt|� � |�d � |�|� d�|�}t�|�}t�|�}t|||�S )zUse "data" URL.zEdata error: proxy support for data protocol currently not implementedrk rR z data errorz bad data URLztext/plain;charset=US-ASCII�;r r� Nrm zDate: %sz%a, %d %b %Y %H:%M:%S GMTzContent-type: %sr r zlatin-1zContent-Length: %d� )r� r� r r; rB rl �rfindr\ r] ZstrftimeZgmtimer r� r r r r_ r� r� r� r� �StringIOr ) r rH rI r� Zsemir� r� rd �frL rL rM � open_data3 s6 zURLopener.open_data)N)N)N)N)NNN)N)N)N)N)r� r� r� r� r� r� r� r� r� r� r� r� rG r� r� r� r� r� r� r� rC r� r� r� r� r� r� rL rL rL rM r8 � s. $ A\ :c @ s� e Zd ZdZdd� Zdd� Zd#dd�Zd d � Zd$d d �Zd%d d�Z d&dd�Z d'dd�Z d(dd�Z d)dd�Z d*dd�Zd+dd�Zd,d d �Zd-d d �Zd!d"� ZdS ).r9 z?Derived class with handlers for errors we can handle (perhaps).c O s( t j| f|�|� i | _d| _d| _d S )Nr r� )r8 r� � auth_cache�tries�maxtries)r r� r/ rL rL rM r� ` s zFancyURLopener.__init__c C s t ||d| |�S )z3Default error handling -- don't raise an exception.zhttp:)r )r rH rc r� r� rd rL rL rM r� f s z!FancyURLopener.http_error_defaultNc C sn | j d7 _ zR| jrJ| j | jkrJt| d�r4| j}n| j}|||dd|�S | �||||||�}|S d| _ X dS )z%Error 302 -- relocated (temporarily).rR �http_error_500i� z)Internal Server Error: Redirect RecursionNr )r r r� r r� �redirect_internal) r rH rc r� r� rd rI r� rf rL rL rM r j s z FancyURLopener.http_error_302c C sx d|kr|d }nd|kr$|d }nd S |� � t| jd | |�}t|�}|jdkrnt|||d| ||��| �|�S )Nr� r� r� )r� r� r� rm z( Redirection to url '%s' is not allowed.)r� r r� r r� r rG ) r rH rc r� r� rd rI r� r rL rL rM r | s z FancyURLopener.redirect_internalc C s | � ||||||�S )z*Error 301 -- also relocated (permanently).)r )r rH rc r� r� rd rI rL rL rM r � s z FancyURLopener.http_error_301c C s | � ||||||�S )z;Error 303 -- also relocated (essentially identical to 302).)r )r rH rc r� r� rd rI rL rL rM r � s z FancyURLopener.http_error_303c C s2 |dkr | � ||||||�S | �|||||�S dS )z1Error 307 -- relocated, but turn POST into error.N)r r� )r rH rc r� r� rd rI rL rL rM r � s z FancyURLopener.http_error_307Fc C s� d|kr t �| |||||� |d }t�d|�} | sHt �| |||||� | �� \} } | �� dkrtt �| |||||� |s�t �| |||||� d| j d } |dkr�t| | �|| �S t| | �|| |�S dS )z_Error 401 -- authentication required. This function supports Basic authentication only.zwww-authenticatez![ ]*([^ ]+)[ ]+realm="([^"]*)"r> Zretry_� _basic_authN)r8 r� rI �matchr9 rs r� r� ) r rH rc r� r� rd rI rt �stuffr r� r rZ rL rL rM rM � s& z FancyURLopener.http_error_401c C s� d|kr t �| |||||� |d }t�d|�} | sHt �| |||||� | �� \} } | �� dkrtt �| |||||� |s�t �| |||||� d| j d } |dkr�t| | �|| �S t| | �|| |�S dS )zeError 407 -- proxy authentication required. This function supports Basic authentication only.zproxy-authenticatez![ ]*([^ ]+)[ ]+realm="([^"]*)"r> Z retry_proxy_r N)r8 r� rI r r9 rs r� r� ) r rH rc r� r� rd rI rt r r r� r rZ rL rL rM rN � s& z FancyURLopener.http_error_407c C s� t |�\}}d| | }| jd }t|�\}} t | �\} } | �d�d } | | d � } | �| || �\} } | sr| srd S dt| dd�t| dd�| f } d| | | jd< |d kr�| �|�S | �||�S d S )Nzhttp://r� �@rR z%s:%s@%srm )r� )r r r r� �get_user_passwdr rG )r rH r rI ru r� r� r r� r� � proxyselectorr� r r rL rL rM �retry_proxy_http_basic_auth� s z*FancyURLopener.retry_proxy_http_basic_authc C s� t |�\}}d| | }| jd }t|�\}} t | �\} } | �d�d } | | d � } | �| || �\} } | sr| srd S dt| dd�t| dd�| f } d| | | jd< |d kr�| �|�S | �||�S d S )Nzhttps://r� r rR z%s:%s@%srm )r� )r r r r� r r rG )r rH r rI ru r� r� r r� r� r r� r r rL rL rM � retry_proxy_https_basic_auth� s z+FancyURLopener.retry_proxy_https_basic_authc C s� t |�\}}|�d�d }||d � }| �|||�\}}|sD|sDd S dt|dd�t|dd�|f }d| | } |d kr�| �| �S | �| |�S d S )Nr rR z%s:%s@%srm )r� zhttp://)r r� r r rG ) r rH r rI ru r� r� r r r� rL rL rM r? � s z$FancyURLopener.retry_http_basic_authc C s� t |�\}}|�d�d }||d � }| �|||�\}}|sD|sDd S dt|dd�t|dd�|f }d| | } |d kr�| �| �S | �| |�S d S )Nr rR z%s:%s@%srm )r� zhttps://)r r� r r rG ) r rH r rI ru r� r� r r r� rL rL rM �retry_https_basic_auth s z%FancyURLopener.retry_https_basic_authr c C s` |d |� � }|| jkr2|r(| j|= n | j| S | �||�\}}|sJ|rX||f| j|< ||fS )Nr )rs r �prompt_user_passwd)r ru r r� r� r r rL rL rM r s z FancyURLopener.get_user_passwdc C sT ddl }y,td||f �}|� d|||f �}||fS tk rN t� dS X dS )z#Override this in a GUI environment!r Nz Enter username for %s at %s: z#Enter password for %s in %s at %s: )NN)�getpass�input�KeyboardInterrupt�print)r ru r r r r rL rL rM r $ s z!FancyURLopener.prompt_user_passwd)N)N)N)N)NF)NF)N)N)N)N)r )r� r� r� r� r� r� r r r r r rM rN r r r? r r r rL rL rL rM r9 ] s$ c C s t dkrt�d�a t S )z8Return the IP address of the magic hostname 'localhost'.Nr� )� _localhostr� r� rL rL rL rM r� 4 s r� c C sP t dkrLytt�t�� �d �a W n( tjk rJ tt�d�d �a Y nX t S )z,Return the IP addresses of the current host.Nr: r� )� _thishostr r� r� r� r� rL rL rL rM r� < s r� c C s t dkrddl} | ja t S )z1Return the set of errors raised by the FTP class.Nr )� _ftperrorsr� r� )r� rL rL rM r� G s r� c C s t dkrt�d�a t S )z%Return an empty email Message object.Nrm )� _noheadersr� r� rL rL rL rM � noheadersP s r c @ sJ e Zd ZdZddd�Zdd� Zdd � Zd d � Zd d � Zdd� Z dd� Z dS )r� z;Class used by open_ftp() for cache of open FTP connections.NTc C sX || _ || _|| _|| _|| _|| _d| _|| _y | �� W n | � � � Y nX d S )Nr ) r r ru r) r� rJ �refcount� keepalive�initr� )r r r ru r) r� rJ r� rL rL rM r� ] s zftpwrapper.__init__c C s\ dd l }d| _|�� | _| j�| j| j| j� | j�| j | j � d� | j �}| j� |� d S )Nr r� )r� �busyZFTPr� Zconnectru r) rJ Zloginr r r� r� �cwd)r r� Z_targetrL rL rM r m s zftpwrapper.initc C s� dd l }| �� |dkr"d}d}n d| }d}y| j�|� W n* |jk rh | �� | j�|� Y nX d }|r�|s�y d| }| j�|�\}}W nR |jk r� } z2t|�d d� dkr�t d | �� t � � d ��W d d }~X Y nX |�s�| j�d� |�rl| j� � } zJy| j�|� W n4 |jk �rN } zt d | �|�W d d }~X Y nX W d | j�| � X d | }nd }| j�|�\}}d| _t|�d �| j�} | jd7 _|�� | |fS )Nr )rs r� zTYPE ArR zTYPE zRETR r6 Z550z ftp error: %rr: zLIST ZLISTr� )r� � endtransferr� Zvoidcmdr� r Z ntransfercmdZ error_permr� r r� r� r� �pwdr r r Zmakefile� file_closer r� ) r rN r� r� �cmd�isdirr� r� r� r ZftpobjrL rL rM r� v sN $ zftpwrapper.retrfilec C s d| _ d S )Nr )r )r rL rL rM r � s zftpwrapper.endtransferc C s d| _ | jdkr| �� d S )NFr )r r � real_close)r rL rL rM r� � s zftpwrapper.closec C s2 | � � | jd8 _| jdkr.| js.| �� d S )NrR r )r r r r" )r rL rL rM r � s zftpwrapper.file_closec C s2 | � � y| j�� W n t� k r, Y nX d S )N)r r� r� r� )r rL rL rM r" � s zftpwrapper.real_close)NT) r� r� r� r� r� r r� r r� r r" rL rL rL rM r� Z s -r� c C s� i } xBt j�� D ]4\}}|�� }|r|dd� dkr|| |dd� < qW dt jkr^| �dd� xXt j�� D ]J\}}|dd� dkrj|�� }|r�|| |dd� < qj| �|dd� d� qjW | S )a Return a dictionary of scheme -> proxy server URL mappings. Scan the environment for variables named <scheme>_proxy; this seems to be the standard convention. If you need a different way, you can pass a proxies dictionary to the [Fancy]URLopener constructor. i����N�_proxyZREQUEST_METHODr� )rV �environrz rs r� )r rZ r� rL rL rM �getproxies_environment� s r% c C s� |dkrt � }y |d }W n tk r. dS X |dkr<dS | �� } t| �\}}xd|�d�D ]V}|�� }|r\|�d�}|�� }||ks�| |kr�dS d| }|�|�s�| �|�r\dS q\W dS )z�Test if proxies should not be used for a particular host. Checks the proxy dict for the value of no_proxy, which should be a list of comma separated DNS suffixes, or '*' for all hosts. NZnoF�*Trk �.)r% rl rs r r; rG �lstripr� )ru r Zno_proxy�hostonlyr) rZ rL rL rM �proxy_bypass_environment� s* r* c C s ddl m } t| �\}}dd� }d| kr4|d r4dS d}x�|�d d �D ]�}|sPqFt�d |�}|dk �r|dkr�yt�|�}||�}W n tk r� wFY nX ||�d ��} |�d �} | dkr�d|�d �� d�d } nt | d d� �} d| } || ? | | ? k�rdS qF|| |�rFdS qFW dS )aj Return True iff this host shouldn't be accessed using a proxy This function uses the MacOSX framework SystemConfiguration to fetch the proxy information. proxy_settings come from _scproxy._get_proxy_settings or get mocked ie: { 'exclude_simple': bool, 'exceptions': ['foo.bar', '*.bar.com', '127.0.0.1', '10.1', '10.0/16'] } r )�fnmatchc S sh | � d�}ttt|��}t|�dkr<|ddddg d d� }|d d> |d d> B |d d> B |d B S ) Nr' r� r � rR r\ r: r[ r6 )r; r� r� r] r_ )ZipAddrr( rL rL rM �ip2num s z,_proxy_bypass_macosx_sysconf.<locals>.ip2numr' Zexclude_simpleTN� exceptionsrL z(\d+(?:\.\d+)*)(/\d+)?rR r: r[ � F) r+ r r� rI r r� r� rl �group�countr] ) ru �proxy_settingsr+ r) r) r- ZhostIPr� r� r* �maskrL rL rM � _proxy_bypass_macosx_sysconf� s: r4 �darwin)�_get_proxy_settings� _get_proxiesc C s t � }t| |�S )N)r6 r4 )ru r2 rL rL rM �proxy_bypass_macosx_sysconf< s r8 c C s t � S )z�Return a dictionary of scheme -> proxy server URL mappings. This function uses the MacOSX framework SystemConfiguration to fetch the proxy information. )r7 rL rL rL rM �getproxies_macosx_sysconf@ s r9 c C s t � }|rt| |�S t| �S dS )z�Return True, if host should be bypassed. Checks proxy settings gathered from the environment, if specified, or from the MacOSX framework SystemConfiguration. N)r% r* r8 )ru r rL rL rM r J s r c C s t � p t� S )N)r% r9 rL rL rL rM r5 W s c C s i } y ddl }W n tk r$ | S X y�|�|jd�}|�|d�d }|r�t|�|d�d �}d|kr�x�|�d�D ]4}|�dd�\}}t�d |�s�d ||f }|| |< qrW n>|dd � d kr�|| d < n$d| | d < d| | d< d| | d< |� � W n t t t fk �r Y nX | S )zxReturn a dictionary of scheme -> proxy server URL mappings. Win32 uses the registry to store proxies. r Nz;Software\Microsoft\Windows\CurrentVersion\Internet Settings� ProxyEnableZ ProxyServerr� r� rR z (?:[^/:]+)://z%s://%srS zhttp:r� z http://%sz https://%sr� zftp://%sr� ) �winreg� ImportError�OpenKey�HKEY_CURRENT_USER� QueryValueExr� r; rI r ZCloserl rB r� )r r; �internetSettings� proxyEnableZ proxyServer�pr� ZaddressrL rL rM �getproxies_registry\ s8 rC c C s t � p t� S )z�Return a dictionary of scheme -> proxy server URL mappings. Returns settings gathered from the environment, if specified, or the registry. )r% rC rL rL rL rM r5 � s c C sx y dd l }W n tk r dS X y6|�|jd�}|�|d�d }t|�|d�d �}W n tk rl dS X |rv|szdS t| �\}}|g} y t� |�}||kr�| � |� W n tk r� Y nX y t� |�}||kr�| � |� W n tk r� Y nX |� d�}xp|D ]h} | dk�r$d|k�r$dS | � dd �} | � d d �} | � d d�} x$| D ] } t�| | tj��rNdS �qNW �qW dS ) Nr z;Software\Microsoft\Windows\CurrentVersion\Internet Settingsr: Z ProxyOverrider� z<local>r' rR z\.r& z.*�?)r; r< r= r> r? r� rl r r� r� r\ Zgetfqdnr; r� rI r rK ) ru r; r@ rA Z proxyOverrideZrawHostr) ZaddrZfqdnr+ r� rL rL rM �proxy_bypass_registry� sR rE c C s t � }|rt| |�S t| �S dS )z�Return True, if host should be bypassed. Checks proxy settings gathered from the environment, if specified, or the registry. N)r% r* rE )ru r rL rL rM r � s )NNN)N)~r� r r� r� r_ Z http.clientr� r� rV � posixpathrI r� r� r� r] rY rS r? Z urllib.errorr r r Z urllib.parser r r r r r r r r r r r r r r r r r Zurllib.responser r rD r< rC �__all__� version_infor� rF r� r0 r1 r[ r6 r7 rJ �ASCIIrq rv r r r2 r r/ r r r r r r! r" r# r$ r% �urandomr^ r& r' r( ru r) r� r� rE r\ r r. rU rW r* r� r+ r, r- r� rZ Z nturl2pathr4 r3 r� r8 r9 r r� r r� r r� r r r� r% r* r4 �platformZ_scproxyr6 r7 r8 r9 r r5 rC rE rL rL rL rM �<module>D s� P T ?n $q *@ o v +3:5! @ W _ %< - 2
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