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python2.7
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email
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header.pyc
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� �mec@s6dZdddgZddlZddlZddlZddlZddlmZddl m Z dZd Zd Z d dZdZd Ze d�Ze d�ZejdejejBejB�Zejd�Zejd�ZejjZd�Zeed d�Zdfd��YZd�Z d�Z!dS(s+Header encoding and decoding functionality.tHeadert decode_headertmake_headeri����N(tHeaderParseError(tCharsets t u iuiLsus-asciisutf-8s� =\? # literal =? (?P<charset>[^?]*?) # non-greedy up to the next ? is the charset \? # literal ? (?P<encoding>[qb]) # either a "q" or a "b", case insensitive \? # literal ? (?P<encoded>.*?) # non-greedy up to the next ?= is the encoded string \?= # literal ?= (?=[ \t]|$) # whitespace or the end of the string s[\041-\176]+:$s \n[^ \t]+:cCsGt|�}tj|�s(|dfgSg}d}x|j�D]�}tj|�so|j|df�qAntj|�}x�|r>|jd�j�}|r�|r�|dddkr�|ddt |df|d<q�|j|df�n|r1g|dd!D]}|j �^q \}}|d} d}|dkrXtjj | �}nm|dkr�t| �d} | r�| d d| 7} nytjj| �}Wq�tjk r�t�q�Xn|dkr�| }n|r|dd|kr|dd||ddf|d<q1|j||f�n|dd 5q�WqAW|S(s�Decode a message header value without converting charset. Returns a list of (decoded_string, charset) pairs containing each of the decoded parts of the header. Charset is None for non-encoded parts of the header, otherwise a lower-case string containing the name of the character set specified in the encoded string. An email.errors.HeaderParseError may be raised when certain decoding error occurs (e.g. a base64 decoding exception). tii����iitqtbis===iN(tstrtecretsearchtNonet splitlinestappendtsplittpoptstriptSPACEtlowertemailt quoprimimet header_decodetlent base64mimetdecodetbinasciitErrorR(theadertdecodedtdectlinetpartstunenctstcharsettencodingtencodedtpaderr((s$/usr/lib64/python2.7/email/header.pyR=sJ #, 'cCsqtd|d|d|�}xO|D]G\}}|dk rYt|t�rYt|�}n|j||�q"W|S(s�Create a Header from a sequence of pairs as returned by decode_header() decode_header() takes a header value string and returns a sequence of pairs of the format (decoded_string, charset) where charset is the string name of the character set. This function takes one of those sequence of pairs and returns a Header instance. Optional maxlinelen, header_name, and continuation_ws are as in the Header constructor. t maxlinelentheader_nametcontinuation_wsN(RRt isinstanceRR(tdecoded_seqR'R(R)thR"R#((s$/usr/lib64/python2.7/email/header.pyRys cBs}eZd d d d ddd�Zd�Zd�Zd�Zd�Zd dd�Zd�Z d �Z d �Zdd�ZRS(RtstrictcCs�|dkrt}nt|t�s3t|�}n||_||_t|jdt��}g|_ |dk r�|j |||�n|dkr�t}n|dkr�||_n|t|�d|_|||_ dS(s Create a MIME-compliant header that can contain many character sets. Optional s is the initial header value. If None, the initial header value is not set. You can later append to the header with .append() method calls. s may be a byte string or a Unicode string, but see the .append() documentation for semantics. Optional charset serves two purposes: it has the same meaning as the charset argument to the .append() method. It also sets the default character set for all subsequent .append() calls that omit the charset argument. If charset is not provided in the constructor, the us-ascii charset is used both as s's initial charset and as the default for subsequent .append() calls. The maximum line length can be specified explicit via maxlinelen. For splitting the first line to a shorter value (to account for the field header which isn't included in s, e.g. `Subject') pass in the name of the field in header_name. The default maxlinelen is 76. continuation_ws must be RFC 2822 compliant folding whitespace (usually either a space or a hard tab) which will be prepended to continuation lines. errors is passed through to the .append() call. s iN(RtUSASCIIR*Rt_charsett_continuation_wsRtreplacetSPACE8t_chunksRt MAXLINELENt _firstlinelent_maxlinelen(tselfR"R#R'R(R)terrorstcws_expanded_len((s$/usr/lib64/python2.7/email/header.pyt__init__�s cCs |j�S(sA synonym for self.encode().(tencode(R7((s$/usr/lib64/python2.7/email/header.pyt__str__�scCs�g}d}x�|jD]�\}}|}|r~|dkr_|dkr{|jt�d}q{q~|dkr~|jt�q~n|}|jt|t|���qWtj|�S(s)Helper for the built-in unicode function.sus-asciiN(Nsus-ascii(Nsus-ascii(Nsus-ascii(RR3RtUSPACEtunicodeR tUEMPTYSTRINGtjoin(R7tuchunkstlastcsR"R#tnextcs((s$/usr/lib64/python2.7/email/header.pyt__unicode__�s cCs||j�kS(N(R;(R7tother((s$/usr/lib64/python2.7/email/header.pyt__eq__�scCs||kS(N((R7RE((s$/usr/lib64/python2.7/email/header.pyt__ne__�scCs)|dkr|j}nt|t�s6t|�}n|dkrt|t�r�|jp]d}t|||�}|jp~d}|j||�qt|t�rxft |t fD]@}y&|jp�d}|j||�}PWq�tk r�q�Xq�Wtst d��qn|jj||f�dS(s>Append a string to the MIME header. Optional charset, if given, should be a Charset instance or the name of a character set (which will be converted to a Charset instance). A value of None (the default) means that the charset given in the constructor is used. s may be a byte string or a Unicode string. If it is a byte string (i.e. isinstance(s, str) is true), then charset is the encoding of that byte string, and a UnicodeError will be raised if the string cannot be decoded with that charset. If s is a Unicode string, then charset is a hint specifying the character set of the characters in the string. In this case, when producing an RFC 2822 compliant header using RFC 2047 rules, the Unicode string will be encoded using the following charsets in order: us-ascii, the charset hint, utf-8. The first character set not to provoke a UnicodeError is used. Optional `errors' is passed as the third argument to any unicode() or ustr.encode() call. t8bitsus-asciisutf-8 conversion failedN(RR/R*RR tinput_codecR>toutput_codecR;R.tUTF8tUnicodeErrortFalsetAssertionErrorR3R(R7R"R#R8tincodectustrtoutcodec((s$/usr/lib64/python2.7/email/header.pyR�s( cCs0|j|�}|j|t�}|j|�}||krI||fgS|dkrb||fgS|dkr�|j||||�S|t|�kr�|}|j|| t�} |j||t�} nt|||�\} } |j| �}|j|t�}||fg} | |j| ||j |�S(NRHsus-ascii( t to_splittabletfrom_splittabletTruetencoded_header_lent_split_asciiRRMt _binsplitt_splitR6(R7R"R#R't splitcharst splittableR%telentsplitpnttfirsttlasttfsplittabletfencodedtchunk((s$/usr/lib64/python2.7/email/header.pyRX s$ cCs8t|||j|j|�}t||gt|��S(N(RVR6R0tzipR(R7R"R#tfirstlenRYtchunks((s$/usr/lib64/python2.7/email/header.pyRVNsc Cs�g}x�|D]�\}}|s%q n|dks@|jdkrI|}n|j|�}|rz|djd�rzd}nd}t||||�q Wt|j}|j|�S(Ni����RR(Rtheader_encodingt header_encodetendswitht_max_appendtNLR0R@( R7t newchunksR'RdRR#R"textratjoiner((s$/usr/lib64/python2.7/email/header.pyt_encode_chunksSs s;, cCs�g}|j}d}x~|jD]s\}}||d}||jd�krW|}n||j||||�7}|d\}} | j|�}qW|j||�} tj| �r�tdj| ���n| S(s�Encode a message header into an RFC-compliant format. There are many issues involved in converting a given string for use in an email header. Only certain character sets are readable in most email clients, and as header strings can only contain a subset of 7-bit ASCII, care must be taken to properly convert and encode (with Base64 or quoted-printable) header strings. In addition, there is a 75-character length limit on any given encoded header field, so line-wrapping must be performed, even with double-byte character sets. This method will do its best to convert the string to the correct character set used in email, and encode and line wrap it safely with the appropriate scheme for that character set. If the given charset is not known or an error occurs during conversion, this function will return the header untouched. Optional splitchars is a string containing characters to split long ASCII lines on, in rough support of RFC 2822's `highest level syntactic breaks'. This doesn't affect RFC 2047 encoded lines. iiRi����s8header value appears to contain an embedded header: {!r}( R5R3RURXRmt_embeded_headerRRtformat(R7RYRjR'tlastlenR"R#t targetlent lastchunktlastcharsettvalue((s$/usr/lib64/python2.7/email/header.pyR;vs N( t__name__t __module__RR:R<RDRFRGRRXRVRmR;(((s$/usr/lib64/python2.7/email/header.pyR�s3 7 . #cCs|g}|}xi|j�D][}|j�}t|�|krV|j|�|}qnx4|D]}||kr]Pq]q]W|j|�|}qtjd|�} |dkr�|} nd} | d}t|�}t|jdt��} g}d}x]| j|�D]L}|t dt|�d�|}t|�}|}|dkr�|r�t|�dkr�t j|d�r�|j|�||7}q|||kr:|r�|j|j|�| �n||kr|dkrt ||||d�}|j|d �|dg}n |g}| t|d�}|}q|j|�||7}qW|r|j|j|��qqW|S( Ns%s\s*s;,RRs iii����(R tlstripRRtretcompileR1R2RtmaxtfcretmatchR@RVtextend(R"RctrestlenR)RYtlinestmaxlenRtchtcreteolRltjoinlentwslentthistlinelentparttcurlentpartlentonfirstlinetsubl((s$/usr/lib64/python2.7/email/header.pyRV�s^ !% c Cs�d}t|�}xf||krz||dd?}|j|| t�}|j|�}||krm|}q|d}qW|j|| t�}|j||t�} || fS(Nii(RRSRTRURM( RZR#R'titjtmRatchunklenR]R^((s$/usr/lib64/python2.7/email/header.pyRW�s ("t__doc__t__all__RxRtemail.quoprimimeRtemail.base64mimetemail.errorsRt email.charsetRRiRR=R2R?R4R.RKRytVERBOSEt IGNORECASEt MULTILINER R{RnRRhRRRRRVRW(((s$/usr/lib64/python2.7/email/header.pyt<module>s: <� F
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