U HhRt@sdZddlZddlZddlZddlZddlZddlZddlZddlZddl Z ddl Z ddl Z ddl m Z ddl mZddlmZddlmZddlmZmZmZmZmZmZmZmZmZmZmZmZm Z m!Z!m"Z"dd l#m$Z$dd l%m&Z&dd l'm(Z(m)Z)m*Z*m+Z+d Z,e-Z.d ddZ/ej0dkr2ddZ1ddZddZ2ddZ3dhddZ4ddZ5ddZ6d d!Z7d"d#Z8d$d%Z9d&d'Z:did(d)Z;d*d+Zd0d1Z?d2d3Z@d4d5ZAd6d7ZBd8d9ZCeDd:ZEd;d<ZFd=d>ZGd?d@ZHdAdBZIdCdDZJdEdFZKejLdGdHZMdIdJZNdjdKdLZOdMdNZPdkdPdQZQdRdSZRdTdUZSdVTdWZUeUdXZVeUdYZWdZd[ZXd\d]ZYd^d_ZZe[d`Z\e[daZ]dbdcZ^dddeZ_dfdgZ`dS)lz requests.utils ~~~~~~~~~~~~~~ This module provides utility functions that are used within Requests that are also useful for external consumption. N __version__)certs)to_native_string)parse_http_list)quoteurlparsebytesstr OrderedDictunquote getproxies proxy_bypass urlunparse basestring integer_typesis_py3proxy_bypass_environmentgetproxies_environmentMappingcookiejar_from_dict)CaseInsensitiveDict) InvalidURL InvalidHeaderFileModeWarningUnrewindableBodyError)z.netrc_netrcPi)ZhttpZhttpsZwin32cCsztrddl}nddl}Wntk r0YdSXz6||jd}t||dd}||dd}Wntk r~YdSX|r|sdS| d}|D]T}|dkrd|krd S| dd }| d d }| d d}t ||t j rd SqdS)NrFz;Software\Microsoft\Windows\CurrentVersion\Internet SettingsZ ProxyEnableZ ProxyOverride;z.Tz\.*z.*?)rwinreg_winreg ImportErrorOpenKeyHKEY_CURRENT_USERintZ QueryValueExOSErrorsplitreplacerematchI)hostr$ZinternetSettingsZ proxyEnableZ proxyOverrideZtestr10/usr/lib/python3/dist-packages/requests/utils.pyproxy_bypass_registry/sF      r3cCstrt|St|SdS)zReturn True, if the host should be bypassed. Checks proxy settings gathered from the environment, if specified, or the registry. N)rrr3)r0r1r1r2rVsrcCst|dr|}|S)z/Returns an internal sequence dictionary update.items)hasattrr4)dr1r1r2dict_to_sequencebs r7c Cs4d}d}t|drt|}nbt|dr.|j}nPt|dr~z |}Wntjk rZYn$Xt|j}d|jkr~t dt t|drz | }Wn$t tfk r|dk r|}Yn^Xt|dr|dkrz&|dd | }||pdWnt tfk rd}YnX|dkr&d}td||S) Nr__len__lenfilenoba%Requests has determined the content-length for this request using the binary size of the file: however, the file has been opened in text mode (i.e. without the 'b' flag in the mode). This may lead to an incorrect content-length. In Requests 3.0, support will be removed for files in text mode.tellseek)r5r9r:ioUnsupportedOperationosfstatst_sizemodewarningswarnrr<r*IOErrorr=max)oZ total_lengthZcurrent_positionr:r1r1r2 super_lenksB             rJFc Cszddlm}m}d}tD]J}ztjd|}Wntk rNYWdSXtj|r|}qfq|dkrtWdSt |}|j }z:|| |} | r| drdnd} | | | dfWWSWn|t fk r|rւYnXWnt tfk rYnXdS)z;Returns the Requests tuple auth for a given url from netrc.r)netrcNetrcParseErrorNz~/{}rr>)rKrL NETRC_FILESrApath expanduserformatKeyErrorexistsr hostnameZauthenticatorsrGr&AttributeError) urlZ raise_errorsrKrLZ netrc_pathfZlocZrir0rZlogin_ir1r1r2get_netrc_auths2   rWcCsBt|dd}|r>t|tr>|ddkr>|ddkr>tj|SdS)z0Tries to guess the filename of the given object.nameNr<>)getattr isinstancerrArNbasename)objrXr1r1r2guess_filenames   r`cCstj|r|Stj|\}}|rPtj|sPtj|\}}d||g}q t|s^|St|}||krx|St }tjj|f|d}tj|s|j ||d}|S)zReplace nonexistent paths that look like they refer to a member of a zip archive with the location of an extracted copy of the target, or else just return the provided path unchanged. /)rN) rArNrRr+joinzipfileZ is_zipfileZZipFileZnamelisttempfileZ gettempdirextract)rNarchivememberprefixZzip_fileZtmpZextracted_pathr1r1r2extract_zipped_pathss      ricCs.|dkr dSt|ttttfr&tdt|S)aTake an object and test to see if it can be represented as a dictionary. Unless it can not be represented as such, return an OrderedDict, e.g., :: >>> from_key_val_list([('key', 'val')]) OrderedDict([('key', 'val')]) >>> from_key_val_list('string') ValueError: cannot encode objects that are not 2-tuples >>> from_key_val_list({'key': 'val'}) OrderedDict([('key', 'val')]) :rtype: OrderedDict N+cannot encode objects that are not 2-tuples)r]r r boolr) ValueErrorr valuer1r1r2from_key_val_lists rocCs@|dkr dSt|ttttfr&tdt|tr8|}t|S)aTake an object and test to see if it can be represented as a dictionary. If it can be, return a list of tuples, e.g., :: >>> to_key_val_list([('key', 'val')]) [('key', 'val')] >>> to_key_val_list({'key': 'val'}) [('key', 'val')] >>> to_key_val_list('string') ValueError: cannot encode objects that are not 2-tuples. :rtype: list Nrj) r]r r rkr)rlrr4listrmr1r1r2to_key_val_lists rqcCsXg}t|D]F}|dd|ddkr4dkrHnnt|dd}||q |S)aParse lists as described by RFC 2068 Section 2. In particular, parse comma-separated lists where the elements of the list may include quoted-strings. A quoted-string could contain a comma. A non-quoted string could have quotes in the middle. Quotes are removed automatically after parsing. It basically works like :func:`parse_set_header` just that items may appear multiple times and case sensitivity is preserved. The return value is a standard :class:`list`: >>> parse_list_header('token, "quoted value"') ['token', 'quoted value'] To create a header from the :class:`list` again, use the :func:`dump_header` function. :param value: a string with a list header. :return: :class:`list` :rtype: list NrrZ")_parse_list_headerunquote_header_valueappend)rnresultitemr1r1r2parse_list_header2s  ( rxcCsxi}t|D]f}d|kr"d||<q |dd\}}|dd|ddkrVdkrjnnt|dd}|||<q |S)a^Parse lists of key, value pairs as described by RFC 2068 Section 2 and convert them into a python dict: >>> d = parse_dict_header('foo="is a fish", bar="as well"') >>> type(d) is dict True >>> sorted(d.items()) [('bar', 'as well'), ('foo', 'is a fish')] If there is no value for a key it will be `None`: >>> parse_dict_header('key_without_value') {'key_without_value': None} To create a header from the :class:`dict` again, use the :func:`dump_header` function. :param value: a string with a dict header. :return: :class:`dict` :rtype: dict =NrrZrr)rsr+rt)rnrvrwrXr1r1r2parse_dict_headerRs ( rzcCs\|rX|d|dkr dkrXnn4|dd}|rD|dddkrX|ddd dS|S) zUnquotes a header value. (Reversal of :func:`quote_header_value`). This does not use the real unquoting but what browsers are actually using for quoting. :param value: the header value to unquote. :rtype: str rrZrrrNr>z\\\z\")r,)rnZ is_filenamer1r1r2rtus $ rtcCsi}|D]}|j||j<q|S)zReturns a key/value dictionary from a CookieJar. :param cj: CookieJar object to extract cookies from. :rtype: dict )rnrX)cj cookie_dictZcookier1r1r2dict_from_cookiejarsr~cCs t||S)zReturns a CookieJar from a key/value dictionary. :param cj: CookieJar to insert cookies into. :param cookie_dict: Dict of key/values to insert into CookieJar. :rtype: CookieJar r)r|r}r1r1r2add_dict_to_cookiejarsrcCsTtdttjdtjd}tjdtjd}td}||||||S)zlReturns encodings from given content string. :param content: bytestring to extract encodings from. zIn requests 3.0, get_encodings_from_content will be removed. For more information, please see the discussion on issue #2266. (This warning should only appear once.)z!])flagsz+]z$^<\?xml.*?encoding=["\']*(.+?)["\'>])rErFDeprecationWarningr-compiler/findall)contentZ charset_reZ pragma_reZxml_rer1r1r2get_encodings_from_contents rc Cs|d}|d|dd}}i}d}|D]`}|}|r0|d}}|d} | dkr|d| |}|| dd|}|||<q0||fS) zReturns content type and parameters from given header :param header: string :return: tuple containing content type and dictionary of parameters r rrNz"' TryrZ)r+stripfindlower) headertokens content_typeparamsZ params_dictZitems_to_stripparamkeyrnZindex_of_equalsr1r1r2_parse_content_type_headers   rcCsD|d}|sdSt|\}}d|kr4|ddSd|kr@dSdS)z}Returns encodings from given HTTP Header Dict. :param headers: dictionary to extract encoding from. :rtype: str z content-typeNcharsetz'"textz ISO-8859-1)getrr)headersrrr1r1r2get_encoding_from_headerss  rccsj|jdkr|D] }|VqdSt|jdd}|D]}||}|r4|Vq4|jddd}|rf|VdS)zStream decodes a iterator.Nr,errorsT)final)encodingcodecsgetincrementaldecoderdecode)iteratorrrwdecoderchunkrvr1r1r2stream_decode_response_unicodes  rccsHd}|dks|dkrt|}|t|krD||||V||7}qdS)z Iterate over slices of a string.rN)r9)stringZ slice_lengthposr1r1r2 iter_slicess  rcCs~tdtg}t|j}|rLzt|j|WStk rJ||YnXzt|j|ddWSt k rx|jYSXdS)zReturns the requested content back in unicode. :param r: Response object to get unicode content from. Tried: 1. charset from content-type 2. fall back and replace all unicode characters :rtype: str zIn requests 3.0, get_unicode_from_response will be removed. For more information, please see the discussion on issue #2266. (This warning should only appear once.)r,rN) rErFrrrr r UnicodeErrorru TypeError)rZtried_encodingsrr1r1r2get_unicode_from_responses  rzBABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-._~c Cs|d}tdt|D]}||dd}t|dkr|rztt|d}Wn tk rrtd|YnX|tkr|||dd||<qd||||<qd||||<qd |S) zUn-escape any percent-escape sequences in a URI that are unreserved characters. This leaves all reserved, illegal and non-ASCII bytes encoded. :rtype: str %rrr>z%Invalid percent-escape sequence: '%s'N) r+ranger9isalnumchrr)rlrUNRESERVED_SETrb)uripartsihcr1r1r2unquote_unreserved/s rcCs@d}d}ztt||dWStk r:t||dYSXdS)zRe-quote the given URI. This function passes the given URI through an unquote/quote cycle to ensure that it is fully and consistently quoted. :rtype: str z!#$%&'()*+,/:;=?@[]~z!#$&'()*+,/:;=?@[]~)ZsafeN)rrr)rZsafe_with_percentZsafe_without_percentr1r1r2 requote_uriGs rcCsltdt|d}|d\}}tdttt|d}tdt|d|@}||@||@kS)zThis function allows you to check if an IP belongs to a network subnet Example: returns True if ip = 192.168.1.1 and net = 192.168.1.0/24 returns False if ip = 192.168.1.1 and net = 192.168.100.0/24 :rtype: bool z=Lrra)structZunpacksocket inet_atonr+dotted_netmaskr))ZipZnetZipaddrZnetaddrbitsZnetmaskZnetworkr1r1r2address_in_network]s rcCs&ddd|>dA}ttd|S)zConverts mask from /xx format to xxx.xxx.xxx.xxx Example: if mask is 24 function returns 255.255.255.0 :rtype: str lr z>I)rZ inet_ntoarZpack)maskrr1r1r2rlsrcCs,zt|Wntjk r&YdSXdS)z :rtype: bool FT)rrerror)Z string_ipr1r1r2is_ipv4_addressws rcCs|ddkrzt|dd}Wntk r:YdSX|dksL|dkrPdSzt|ddWqtjk rYdSXndSdS)zV Very simple check of the cidr format in no_proxy variable. :rtype: bool rarFrrT)countr)r+rlrrr)Zstring_networkrr1r1r2 is_valid_cidrs rc csT|dk }|r"tj|}|tj|<z dVW5|rN|dkrDtj|=n |tj|<XdS)zSet the environment variable 'env_name' to 'value' Save previous value, yield, and then restore the previous value stored in the environment variable 'env_name'. If 'value' is None, do nothingN)rAenvironr)Zenv_namernZ value_changed old_valuer1r1r2 set_environs    rc Cs*dd}|}|dkr|d}t|}|jdkr2dS|rdd|dd d D}t|jr|D]0}t|rt|j|rdSq`|j|kr`dSq`nB|j}|jr|d |j7}|D] }|j |s| |rdSqt d|6zt |j}Wn t t jfk rd }YnXW5QRX|r&dSd S) zL Returns whether we should bypass proxies or not. :rtype: bool cSstj|ptj|SN)rArrupper)kr1r1r2rz'should_bypass_proxies..Nno_proxyTcss|]}|r|VqdSrr1).0r0r1r1r2 sz(should_bypass_proxies.. r,z:{}F)r rSr,r+rrrZportrPendswithrrrrZgaierror) rUrZ get_proxyZ no_proxy_argparsedZproxy_ipZhost_with_portr0Zbypassr1r1r2should_bypass_proxiess@      rcCst||driStSdS)zA Return a dict of environment proxies. :rtype: dict )rN)rr)rUrr1r1r2get_environ_proxiess rcCst|pi}t|}|jdkr.||j|dS|jd|j|jd|jdg}d}|D]}||krV||}qpqV|S)zSelect a proxy for the url, if applicable. :param url: The url being for the request :param proxies: A dictionary of schemes or schemes and hosts to proxy URLs Nallz://zall://)r rSrscheme)rUZproxiesZurlpartsZ proxy_keysproxyZ proxy_keyr1r1r2 select_proxys rpython-requestscCs d|tfS)zO Return a string representing the default user agent. :rtype: str z%s/%sr)rXr1r1r2default_user_agentsrcCsttdddddS)z9 :rtype: requests.structures.CaseInsensitiveDict z, )ZgzipZdeflatez*/*z keep-alive)z User-AgentzAccept-EncodingZAcceptZ Connection)rrrbr1r1r1r2default_headerss rc Csg}d}||}|s|Std|D]}z|dd\}}Wntk r\|d}}YnXd|di}|dD]F}z|d\}}Wntk rYqYnX|||||<qv||q&|S) zReturn a list of parsed link headers proxies. i.e. Link: ; rel=front; type="image/jpeg",; rel=back;type="image/jpeg" :rtype: list z '"z, * '"ry)rr-r+rlru) rnZlinksZ replace_charsvalrUrlinkrrr1r1r2parse_header_links(s&   rasciir>cCs|dd}|tjtjfkr dS|ddtjkr6dS|ddtjtjfkrRdS|t}|dkrhd S|dkr|dddtkrd S|d ddtkrd S|dkr|ddt krd S|d dt krdSdS)z :rtype: str Nzutf-32rz utf-8-sigr>zutf-16rzutf-8z utf-16-berz utf-16-lez utf-32-bez utf-32-le) r BOM_UTF32_LE BOM_UTF32_BEBOM_UTF8 BOM_UTF16_LE BOM_UTF16_BEr_null_null2_null3)dataZsampleZ nullcountr1r1r2guess_json_utfSs*  rcCs8t||\}}}}}}|s$||}}t||||||fS)zGiven a URL that may or may not have a scheme, prepend the given scheme. Does not replace a present scheme with the one provided as an argument. :rtype: str )r r)rUZ new_schemernetlocrNrqueryfragmentr1r1r2prepend_scheme_if_neededss rc CsBt|}zt|jt|jf}Wnttfk r<d}YnX|S)z{Given a url with authentication components, extract them into a tuple of username,password. :rtype: (str,str) )rr)r r ZusernameZpasswordrTr)rUrZauthr1r1r2get_auth_from_urls  rs^\S[^\r\n]*$|^$z^\S[^\r\n]*$|^$c Csf|\}}t|trt}nt}z||s4td|Wn*tk r`td||t|fYnXdS)zVerifies that header value is a string which doesn't contain leading whitespace or return characters. This prevents unintended header injection. :param header: tuple, in the format (name, value). z7Invalid return character or leading space in header: %sz>Value for header {%s: %s} must be of type str or bytes, not %sN)r]r _CLEAN_HEADER_REGEX_BYTE_CLEAN_HEADER_REGEX_STRr.rrtype)rrXrnZpatr1r1r2check_header_validitys   rcCsFt|\}}}}}}|s"||}}|ddd}t|||||dfS)zW Given a url remove the fragment and the authentication part. :rtype: str @rrZr)r rsplitr)rUrrrNrrrr1r1r2 urldefragauths  rc Cs`t|jdd}|dk rTt|jtrTz||jWq\ttfk rPtdYq\XntddS)zfMove file pointer back to its recorded starting position so it can be read again on redirect. r=Nz;An error occurred when rewinding request body for redirect.z+Unable to rewind request body for redirect.)r\Zbodyr]Z_body_positionrrGr*r)Zprepared_requestZ body_seekr1r1r2 rewind_bodysr)F)F)N)r)a__doc__r contextlibr?rAr-rrsysrdrErcrrrZ_internal_utilsrcompatrrsrr r r r r rrrrrrrrrZcookiesrZ structuresr exceptionsrrrrrMwhereZDEFAULT_CA_BUNDLE_PATHZ DEFAULT_PORTSplatformr3r7rJrWr`rirorqrxrzrtr~rrrrrrr frozensetrrrrrrrcontextmanagerrrrrrrrencoderrrrrrrrrrrrr1r1r1r2s    D    '  = -  #   %   =   &