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U e5d!@sdZddlZddlZddlZddlZddlZddlZddlZddl Z ddl Z ddl Z ddl Z ddl Z ddlZddlZddlZddlZddlmZmZmZddlmZmZmZmZmZmZmZmZmZm Z m!Z!m"Z"m#Z#m$Z$m%Z%m&Z&m'Z'm(Z(ddl)m*Z*m+Z+z ddl,Z,Wne-k rdZ.YnXdZ.dd d d d d ddddddddddddddddddd d!d"d#d$d%d&d'd(g!Z/d)e j0dd*Z1da2de j3fddddd+d,dZ4d-d Z5gZ6d~d.d%Z7d/d&Z8e 9d0e j:Z;d1d2Zd5d!Z?Gd6d d Z@Gd7dde@ZAGd8d d e@ZBGd9d d e@ZCd:d;ZDGdddeFZGGd?ddeGZHGd@ddZIGdAddeIe@ZJGdBddeIe@ZKejLZMGdCddZNGdDdde@eNZOGdEdde@eNZPGdFdGdGe@ZQGdHddeQZReSejTdIr*GdJdKdKeQZUe/VdKGdLd d e@ZWGdMdde@ZXdNdOZYdPdQZZGdRdde@Z[dSdTZ\GdUdde@Z]GdVdde]Z^GdWdde@Z_dXZ`ejadYkrddZlbmcZcmdZdnd[d#Zcd\d"ZdiZeGd]d'd'ZfGd^d(d(efZgdahd_d`ZidajdadbZkdaldcddZmdandedfZoGdgdhdhZpdidjZqddkdlZrdmdnZse jtdokrddplumvZvmwZwdqdrZxdsdtZydudvZzdwd$Z{n6ejadYkrdxdyZ|dzd$Z{d{d|Z}d}dvZzneqZ{erZzdS)a An extensible library for opening URLs using a variety of protocols The simplest way to use this module is to call the urlopen function, which accepts a string containing a URL or a Request object (described below). It opens the URL and returns the results as file-like object; the returned object has some extra methods described below. The OpenerDirector manages a collection of Handler objects that do all the actual work. Each Handler implements a particular protocol or option. The OpenerDirector is a composite object that invokes the Handlers needed to open the requested URL. For example, the HTTPHandler performs HTTP GET and POST requests and deals with non-error returns. The HTTPRedirectHandler automatically deals with HTTP 301, 302, 303 and 307 redirect errors, and the HTTPDigestAuthHandler deals with digest authentication. urlopen(url, data=None) -- Basic usage is the same as original urllib. pass the url and optionally data to post to an HTTP URL, and get a file-like object back. One difference is that you can also pass a Request instance instead of URL. 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 HTTPErrorContentTooShortError)urlparseurlspliturljoinunwrapquoteunquote _splittype _splithost _splitport _splituser _splitpasswd _splitattr _splitquery _splitvalue _splittag _to_bytesunquote_to_bytes urlunparse) addinfourl addclosehookFTRequestOpenerDirector BaseHandlerHTTPDefaultErrorHandlerHTTPRedirectHandlerHTTPCookieProcessor ProxyHandlerHTTPPasswordMgrHTTPPasswordMgrWithDefaultRealmHTTPPasswordMgrWithPriorAuthAbstractBasicAuthHandlerHTTPBasicAuthHandlerProxyBasicAuthHandlerAbstractDigestAuthHandlerHTTPDigestAuthHandlerProxyDigestAuthHandler HTTPHandler FileHandler FTPHandlerCacheFTPHandler DataHandlerUnknownHandlerHTTPErrorProcessorurlopeninstall_opener build_opener pathname2url url2pathname getproxies urlretrieve urlcleanup URLopenerFancyURLopenerz%d.%d)cafilecapath cadefaultcontextc Cs|s |s |rfddl}|dtd|dk r2tdts>tdtjtjj||d}t |d}t |} n0|r~t |d}t |} nt dkrt 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. See Request for details. urllib.request module uses HTTP/1.1 and includes a "Connection:close" header in its HTTP requests. The optional *timeout* parameter specifies a timeout in seconds for blocking operations like the connection attempt (if not specified, the global default timeout setting will be used). This only works for HTTP, HTTPS and FTP connections. If *context* is specified, it must be a ssl.SSLContext instance describing the various SSL options. See HTTPSConnection for more details. The optional *cafile* and *capath* parameters specify a set of trusted CA certificates for HTTPS requests. cafile should point to a single file containing a bundle of CA certificates, whereas capath should point to a directory of hashed certificate files. More information can be found in ssl.SSLContext.load_verify_locations(). The *cadefault* parameter is ignored. 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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This function supports Basic authentication only.rmrHr[Z retry_proxy_rINrJrLrLrLrMrns:      zFancyURLopener.http_error_407cCst|\}}d||}|jd}t|\}} t| \} } | dd} | | d} || || \} } | sr| srdSdt| ddt| dd| f} d| | |jd<|dkr||S|||SdS)Nhttp://rrrV%s:%s@%srrrr r&r rget_user_passwdr rGrrHr9rIrzrrrrrZ proxyselectorrr r1rLrLrMretry_proxy_http_basic_auths$         z*FancyURLopener.retry_proxy_http_basic_authcCst|\}}d||}|jd}t|\}} t| \} } | dd} | | d} || || \} } | sr| srdSdt| ddt| dd| f} d| | |jd<|dkr||S|||SdS)Nhttps://rrrVrNrrrrOrQrLrLrMretry_proxy_https_basic_auths$         z+FancyURLopener.retry_proxy_https_basic_authc Cst|\}}|dd}||d}||||\}}|sD|sDdSdt|ddt|dd|f}d||} |dkr|| S|| |SdS)NrrVrNrrrrMr rrPr rG rrHr9rIrzrrr r1rrLrLrMr\ s      z$FancyURLopener.retry_http_basic_authc Cst|\}}|dd}||d}||||\}}|sD|sDdSdt|ddt|dd|f}d||} |dkr|| S|| |SdS)NrrVrNrrrrSrUrVrLrLrMretry_https_basic_auth s      z%FancyURLopener.retry_https_basic_authrcCs`|d|}||jkr2|r(|j|=n |j|S|||\}}|sJ|rX||f|j|<||fS)Nr)rxrAprompt_user_passwd)rrzr9rrr r1rLrLrMrP s   zFancyURLopener.get_user_passwdcCsXddl}z.td||f}|d|||f}||fWStk rRtYdSXdS)z#Override this in a GUI environment!rNzEnter username for %s at %s: z#Enter password for %s in %s at %s: r<)getpassinputKeyboardInterruptprint)rrzr9rYr r1rLrLrMrX) s z!FancyURLopener.prompt_user_passwd)N)N)N)N)NF)NF)N)N)N)N)r)rrrrrrrrErrrrkrnrRrTr\rWrPrXrLrLrLrMr9bs(           cCstdkrtdatS)z8Return the IP address of the magic hostname 'localhost'.Nr) _localhostrrrLrLrLrMr9 s rcCsPtdkrLztttdaWn(tjk rJttddaYnXtS)z,Return the IP addresses of the current host.Nr:r) _thishostr8rrrrrLrLrLrMr4A s r4cCstdkrddl}|jatS)z1Return the set of errors raised by the FTP class.Nr) _ftperrorsrr)rrLrLrMr7L sr7cCstdkrtdatS)z%Return an empty email Message object.Nrr) _noheadersrrrLrLrLrM noheadersU s rac@sJeZdZdZdddZddZdd Zd d Zd d ZddZ ddZ dS)rz;Class used by open_ftp() for cache of open FTP connections.NTcCsX||_||_||_||_||_||_d|_||_z |Wn| YnXdSro) r r1rzrCrrJrefcount keepaliveinitr)rr r1rzrCrrJrrLrLrMrb s zftpwrapper.__init__cCs\ddl}d|_||_|j|j|j|j|j|j |j d |j }|j |dS)Nrr )rbusyZFTPr ZconnectrzrCrJZloginr r1rrcwd)rrZ_targetrLrLrMrdr s  zftpwrapper.initc Csddl}||dkr"d}d}n d|}d}z|j|Wn*|jk rh||j|YnXd}|r|szd|}|j|\}}WnR|jk r}z2t|dddkrt d | t d W5d}~XYnX|s|jd|rl|j } zJz|j|Wn4|jk rN}zt d ||W5d}~XYnXW5|j| Xd |}nd }|j|\}}d|_t|d |j} |jd7_|| |fS)Nr)rrzTYPE ArVzTYPE zRETR rSZ550rr:zLIST ZLISTr)r endtransferr ZvoidcmdrrdZ ntransfercmdZ error_permrrrrrpwdrfrerZmakefile file_closerbr) rrOrrcmdisdirrrrrhZftpobjrLrLrMr{ sP    $ zftpwrapper.retrfilecCs d|_dSro)rerrLrLrMrg szftpwrapper.endtransfercCsd|_|jdkr|dS)NFr)rcrb real_closerrLrLrMr s zftpwrapper.closecCs2||jd8_|jdkr.|js.|dS)NrVr)rgrbrcrlrrLrLrMri szftpwrapper.file_closecCs2|z|jWntk r,YnXdSrN)rgr rr7rrLrLrMrl s zftpwrapper.real_close)NT) rrrrrrdrrgrrirlrLrLrLrMr_ s  -rcCsi}tjD]4\}}|}|r|dddkr|||dd<qdtjkrZ|ddtjD]J\}}|dddkrd|}|r|||dd<qd||dddqd|S)aReturn a dictionary of scheme -> proxy server URL mappings. 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NZnoF*Tr.)rorrxr rXrdlstripr)rzr&Zno_proxyhostonlyrCr_rLrLrMproxy_bypass_environment s*   rtc Cs0ddlm}t|\}}dd}d|kr4|dr4dSd}|d d D]}|sNqDtd |}|dk r|dkrzt|}||}Wntk rYqDYnX||d } |d } | dkrd|d  dd } nt | d d} | dksD| dkrqDd| } || ?| | ?kr*dSqD|||rDdSqDdS)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)fnmatchcSsh|d}ttt|}t|dkr<|ddddgdd}|dd>|dd>B|dd>B|d BS) NrqrrrVr}r:r|rS)rXrrrbrd)ZipAddrrBrLrLrMip2num s   z,_proxy_bypass_macosx_sysconf..ip2numrqZexclude_simpleTN exceptionsrLz(\d+(?:\.\d+)*)(/\d+)?rVr:r| F) rur rrfrKrrrqgroupcountrb) rzproxy_settingsrursrCrwZhostIPrrrDmaskrLrLrM_proxy_bypass_macosx_sysconf s>         r~darwin)_get_proxy_settings _get_proxiescCst}t||SrN)rr~)rzr|rLrLrMproxy_bypass_macosx_sysconfF srcCstS)zReturn a dictionary of scheme -> proxy server URL mappings. This function uses the MacOSX framework SystemConfiguration to fetch the proxy information. )rrLrLrLrMgetproxies_macosx_sysconfJ srcCs t}|rt||St|SdS)zReturn True, if host should be bypassed. Checks proxy settings gathered from the environment, if specified, or from the MacOSX framework SystemConfiguration. N)rortrrzr&rLrLrMr,T s r,cCs tp tSrN)rorrLrLrLrMr5a sc Csi}z ddl}Wntk r(|YSXz||jd}||dd}|rt||dd}d|kr|dD]4}|dd\}}td |sd ||f}|||<qtn>|dd d kr||d <n$d||d <d||d<d||d<| Wnt t t fk rYnX|S)zxReturn a dictionary of scheme -> proxy server URL mappings. Win32 uses the registry to store proxies. rN;Software\Microsoft\Windows\CurrentVersion\Internet Settings ProxyEnableZ ProxyServerrr9rVz (?:[^/:]+)://z%s://%srtr'rz http://%sz https://%srzftp://%sr ) winreg ImportErrorOpenKeyHKEY_CURRENT_USER QueryValueExrrXrfrKZCloserqrBr)r&rinternetSettings proxyEnableZ proxyServerprZaddressrLrLrMgetproxies_registryf sF          rcCs tp tS)zReturn a dictionary of scheme -> proxy server URL mappings. Returns settings gathered from the environment, if specified, or the registry. )rorrLrLrLrMr5 sc Cs|z ddl}Wntk r"YdSXz6||jd}||dd}t||dd}Wntk rpYdSX|rz|s~dSt|\}}|g}z t |}||kr| |Wntk rYnXz t |}||kr| |Wntk rYnX| d}|D]j} | dkr*d|kr*dS| dd } | d d } | d d} |D] } t| | tjrRdSqRq dS) NrrrZ ProxyOverrider9zrqrVz\.rpz.*?)rrrrrrrqr rrraZgetfqdnrXrrfrKrh) rzrrrZ proxyOverrideZrawHostrCZaddrZfqdnrErrLrLrMproxy_bypass_registry s`           rcCs t}|rt||St|SdS)zReturn True, if host should be bypassed. Checks proxy settings gathered from the environment, if specified, or the registry. N)rortrrrLrLrMr, s )NNN)N)~rr-rrrZ http.clientrrr[ posixpathrfrrrr~r^rXr?Z urllib.errorrrrZ urllib.parserrrrr r r r r rrrrrrrrrZurllib.responserrrDrrC__all__ version_inforrFrr0r1r`r6r7rgASCIIrvr{rrr2rr/rrr"rr r!r"r#r$r%urandomrr&r'r(rr)rrrErarr.rvrxr*rr+r,r-r6r_Z nturl2pathr4r3rr8r9r]rr^r4r_r7r`rarrortr~platformZ_scproxyrrrrr,r5rrrLrLrLrMs SP   U ?m$q!+@ o  v  +3:5! @W  _ %A    - 2