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header.cpython-33.pyc
� �� f�^ c @ s^ d Z d d d g Z d d l Z d d l Z d d l Z d d l Z d d l m Z d d l m Z e j Z d Z d Z d Z d Z d Z d Z d Z e d � Z e d � Z e j d e j e j Be j B� Z e j d � Z e j d � Z e j j Z d d � Z d d d d d � Z Gd d � d � Z! Gd d � d � Z" Gd d � d e# � Z$ d S( u+ Header encoding and decoding functionality.u Headeru decode_headeru make_headeri N( u HeaderParseError( u charsetu u s i u iN u u us-asciiu utf-8ui =\? # 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 ?= u [\041-\176]+:$u \n[^ \t]+:c C s� t | d � r# d d � | j D� St j | � s? | d f g Sg } x� | j � D]� } t j | � } d } x� | r| j d � } | r� | j � } d } n | r� | j | d d f � n | rp | j d � j � } | j d � j � } | j d � } | j | | | f � qp qp WqR Wd d l } g } xn t | � D]` \ } } | d k r>| d r>| | d d r>| | d d j � r>| j | d � q>q>Wx t | � D] } | | =q�Wg } x | D]\ } } } | d k r�| j | | f � q�| d k r2t j j | � } | j | | f � q�| d k r�t | � d } | ro| d d d | � 7} n y t j j | � } Wn! t j k r�t d � � Yq�X| j | | f � q�t d | � � q�Wg } d } } x� | D]� \ } } t | t � rt | d � } n | d k r2| } | } q�| | k r`| j | | f � | } | } q�| d k r}| t | 7} q�| | 7} q�W| j | | f � | S( u; Decode a message header value without converting charset. Returns a list of (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. header may be a string that may or may not contain RFC2047 encoded words, or it may be a Header object. An email.errors.HeaderParseError may be raised when certain decoding error occurs (e.g. a base64 decoding exception). u _chunksc S s: g | ]0 \ } } t j | t | � � t | � f � q S( ( u _charsetu _encodeu str( u .0u stringu charset( ( u1 /opt/alt/python33/lib64/python3.3/email/header.pyu <listcomp>M s u! decode_header.<locals>.<listcomp>i Ni i u qu bi u ===u Base64 decoding erroru Unexpected encoding: u raw-unicode-escapeTF( u hasattru _chunksu ecreu searchu Noneu splitlinesu splitu Trueu popu lstripu Falseu appendu loweru sysu enumerateu isspaceu reversedu emailu quoprimimeu header_decodeu lenu base64mimeu decodeu binasciiu Erroru HeaderParseErroru AssertionErroru isinstanceu stru bytesu BSPACE( u headeru wordsu lineu partsu firstu unencodedu charsetu encodingu encodedu sysu droplistu nu wu du decoded_wordsu encoded_stringu wordu paderru collapsedu last_wordu last_charset( ( u1 /opt/alt/python33/lib64/python3.3/email/header.pyu decode_header= s| ! @ c C sq t d | d | d | � } xO | D]G \ } } | d k rY t | t � rY t | � } n | j | | � q" W| S( u� 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. u maxlinelenu header_nameu continuation_wsN( u Headeru Noneu isinstanceu Charsetu append( u decoded_sequ maxlinelenu header_nameu continuation_wsu hu su charset( ( u1 /opt/alt/python33/lib64/python3.3/email/header.pyu make_header� s c B s� | Ee Z d Z d d d d d d d d � Z d d � Z d d � Z d d � Z d d d d � Z d d � Z d d d d d � Z d d � Z d S( u Headeru u strictc C s� | d k r t } n t | t � s3 t | � } n | | _ | | _ g | _ | d k rp | j | | | � n | d k r� t } n | | _ | d k r� d | _ n t | � d | _ d S( uD 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 explicitly 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 78 as recommended by RFC 2822. 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. i i N( u Noneu USASCIIu isinstanceu Charsetu _charsetu _continuation_wsu _chunksu appendu MAXLINELENu _maxlinelenu _headerlenu len( u selfu su charsetu maxlinelenu header_nameu continuation_wsu errors( ( u1 /opt/alt/python33/lib64/python3.3/email/header.pyu __init__� s u Header.__init__c C s( | j � g } d } d } x� | j D]� \ } } | } | t j k rn | j d d � } | j d d � } n | r� | o� | j | d � } | d k r� | d k r� | r� | j t � d } q� q� | d k r� | r� | j t � q� n | o| j | d � } | } | j | � q& Wt j | � S( u& Return the string value of the header.u asciiu surrogateescapeu replacei u us-asciii N( Nu us-ascii( Nu us-ascii( Nu us-asciii����( u _normalizeu Noneu _chunksu _charsetu UNKNOWN8BITu encodeu decodeu _nonctextu appendu SPACEu EMPTYSTRINGu join( u selfu uchunksu lastcsu lastspaceu stringu charsetu nextcsu original_bytesu hasspace( ( u1 /opt/alt/python33/lib64/python3.3/email/header.pyu __str__� s* u Header.__str__c C s | t | � k S( N( u str( u selfu other( ( u1 /opt/alt/python33/lib64/python3.3/email/header.pyu __eq__ s u Header.__eq__c C s | | k S( N( ( u selfu other( ( u1 /opt/alt/python33/lib64/python3.3/email/header.pyu __ne__ s u Header.__ne__c C s | d k r | j } n t | t � s6 t | � } n t | t � s� | j pQ d } | t j k rx | j d d � } q� | j | | � } n | j p� d } | t j k r� y | j | | � Wq� t k r� | d k r� � n t } Yq� Xn | j j | | f � d S( u. 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 false), 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 either case, when producing an RFC 2822 compliant header using RFC 2047 rules, the string will be encoded using the output codec of the charset. If the string cannot be encoded to the output codec, a UnicodeError will be raised. Optional `errors' is passed as the errors argument to the decode call if s is a byte string. u us-asciiu surrogateescapeN( u Noneu _charsetu isinstanceu Charsetu stru input_codecu UNKNOWN8BITu decodeu output_codecu encodeu UnicodeEncodeErroru UTF8u _chunksu append( u selfu su charsetu errorsu input_charsetu output_charset( ( u1 /opt/alt/python33/lib64/python3.3/email/header.pyu append s$ u Header.appendc C s | j � p | d k S( u= True if string s is not a ctext character of RFC822. u (u )u \( u (u )u \( u isspace( u selfu s( ( u1 /opt/alt/python33/lib64/python3.3/email/header.pyu _nonctext8 s u Header._nonctextu ;, u c C sh | j � | d k r" | j } n | d k r7 d } n t | j | | j | � } d } d } } x�| j D]�\ } } | d k r� | o� | j | d � } d d l } | d k r� | s� | d k r� | j � q� q� | d k r� | r� | j � q� n | o| j | d � } | } d } | j � } | rL| j d | d | � n | j d d | � x� | d d � D]� } | j � | j d k r�| j | j d | j � | � qp| j � } | d t | � t | � � } | j | | | � qpWt | � d k rl | j � ql ql W| j r.| j � n | j | � } t j | � rdt d j | � � � n | S( u� 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. Optional maxlinelen specifies the maximum length of each generated line, exclusive of the linesep string. Individual lines may be longer than maxlinelen if a folding point cannot be found. The first line will be shorter by the length of the header name plus ": " if a header name was specified at Header construction time. The default value for maxlinelen is determined at header construction time. Optional splitchars is a string containing characters which should be given extra weight by the splitting algorithm during normal header wrapping. This is in very rough support of RFC 2822's `higher level syntactic breaks': split points preceded by a splitchar are preferred during line splitting, with the characters preferred in the order in which they appear in the string. Space and tab may be included in the string to indicate whether preference should be given to one over the other as a split point when other split chars do not appear in the line being split. Splitchars does not affect RFC 2047 encoded lines. Optional linesep is a string to be used to separate the lines of the value. The default value is the most useful for typical Python applications, but it can be set to \r\n to produce RFC-compliant line separators when needed. i i@B Nu us-asciii u u u8 header value appears to contain an embedded header: {!r}( Nu us-ascii( Nu us-ascii( Nu us-asciii����F( u _normalizeu Noneu _maxlinelenu _ValueFormatteru _headerlenu _continuation_wsu _chunksu _nonctextu sysu add_transitionu Falseu splitlinesu feedu newlineu header_encodingu lstripu lenu _stru _embeded_headeru searchu HeaderParseErroru format( u selfu splitcharsu maxlinelenu linesepu formatteru lastcsu hasspaceu lastspaceu stringu charsetu sysu linesu lineu slineu fwsu value( ( u1 /opt/alt/python33/lib64/python3.3/email/header.pyu encode= sT ! u Header.encodec C s� g } d } g } xm | j D]b \ } } | | k rD | j | � q | d k ro | j t j | � | f � n | g } | } q W| r� | j t j | � | f � n | | _ d S( N( u Noneu _chunksu appendu SPACEu join( u selfu chunksu last_charsetu last_chunku stringu charset( ( u1 /opt/alt/python33/lib64/python3.3/email/header.pyu _normalize� s u Header._normalizeN( u __name__u __module__u __qualname__u Noneu __init__u __str__u __eq__u __ne__u appendu _nonctextu encodeu _normalize( u __locals__( ( u1 /opt/alt/python33/lib64/python3.3/email/header.pyu Header� s - + Qc B s� | Ee Z d Z d d � Z d d � Z d d � Z d d � Z d d � Z d d � Z d d � Z d d � Z d d � Z d S( u _ValueFormatterc C sF | | _ | | _ t | � | _ | | _ g | _ t | � | _ d S( N( u _maxlenu _continuation_wsu lenu _continuation_ws_lenu _splitcharsu _linesu _Accumulatoru _current_line( u selfu headerlenu maxlenu continuation_wsu splitchars( ( u1 /opt/alt/python33/lib64/python3.3/email/header.pyu __init__� s u _ValueFormatter.__init__c C s | j � | j | j � S( N( u newlineu joinu _lines( u selfu linesep( ( u1 /opt/alt/python33/lib64/python3.3/email/header.pyu _str� s u _ValueFormatter._strc C s | j t � S( N( u _stru NL( u self( ( u1 /opt/alt/python33/lib64/python3.3/email/header.pyu __str__� s u _ValueFormatter.__str__c C s� | j j � } | d k r. | j j | � n t | j � d k r� | j j � ro | j d t | j � 7<q� | j j t | j � � n | j j � d S( Nu u i i ( u u i����( u _current_lineu popu pushu lenu is_onlywsu _linesu stru appendu reset( u selfu end_of_line( ( u1 /opt/alt/python33/lib64/python3.3/email/header.pyu newline� s u _ValueFormatter.newlinec C s | j j d d � d S( Nu u ( u _current_lineu push( u self( ( u1 /opt/alt/python33/lib64/python3.3/email/header.pyu add_transition� s u _ValueFormatter.add_transitionc C s | j d k r) | j | | | j � d S| j | | j � � } y | j d � } Wn t k rl d SYn X| d k r� | j | | � n y | j � } Wn t k r� d SYn X| j � | j j | j | � x% | D] } | j j | j | � q� Wd S( Ni ( u header_encodingu Noneu _ascii_splitu _splitcharsu header_encode_linesu _maxlengthsu popu IndexErroru _append_chunku newlineu _current_lineu pushu _continuation_wsu _linesu append( u selfu fwsu stringu charsetu encoded_linesu first_lineu last_lineu line( ( u1 /opt/alt/python33/lib64/python3.3/email/header.pyu feed� s$ u _ValueFormatter.feedc c s. | j t | j � Vx | j | j Vq d S( N( u _maxlenu lenu _current_lineu _continuation_ws_len( u self( ( u1 /opt/alt/python33/lib64/python3.3/email/header.pyu _maxlengths� s u _ValueFormatter._maxlengthsc C s� t j d t d | | � } | d r> d g | d d � <n | j d � x7 t t | � g d � D] \ } } | j | | � qe Wd S( Nu ([u ]+)i u i ( u reu splitu FWSu popu zipu iteru _append_chunk( u selfu fwsu stringu splitcharsu partsu part( ( u1 /opt/alt/python33/lib64/python3.3/email/header.pyu _ascii_split� s &u _ValueFormatter._ascii_splitc C sr | j j | | � t | j � | j k rnx| j D]� } x� t | j j � d d d � D]o } | j � r� | j | d } | r� | d | k r� Pq� n | j | d d } | r[ | d | k r[ Pq[ q[ Wq5 Pq5 W| j j � \ } } | j j d k r| j � | sd } qn | j j | | � d S| j j | � } | j j t | j � � | j j | � n d S( Ni i u i����i����( u _current_lineu pushu lenu _maxlenu _splitcharsu rangeu part_countu isspaceu popu _initial_sizeu newlineu pop_fromu _linesu appendu stru reset( u selfu fwsu stringu chu iu prevpartu partu remainder( ( u1 /opt/alt/python33/lib64/python3.3/email/header.pyu _append_chunk s. & u _ValueFormatter._append_chunkN( u __name__u __module__u __qualname__u __init__u _stru __str__u newlineu add_transitionu feedu _maxlengthsu _ascii_splitu _append_chunk( u __locals__( ( u1 /opt/alt/python33/lib64/python3.3/email/header.pyu _ValueFormatter� s % u _ValueFormatterc s� | Ee Z d Z d � f d d � Z d d � Z d d d � Z � f d d � Z d d � Z d d � Z d d d � Z d d � Z � f d d � Z � S( u _Accumulatori c s | | _ t � j � d S( N( u _initial_sizeu superu __init__( u selfu initial_size( u __class__( u1 /opt/alt/python33/lib64/python3.3/email/header.pyu __init__$ s u _Accumulator.__init__c C s | j | | f � d S( N( u append( u selfu fwsu string( ( u1 /opt/alt/python33/lib64/python3.3/email/header.pyu push( s u _Accumulator.pushc C s$ | | d � } g | | d � <| S( N( ( u selfu iu popped( ( u1 /opt/alt/python33/lib64/python3.3/email/header.pyu pop_from+ s u _Accumulator.pop_fromc s# | j � d k r d St � j � S( Ni u ( u u ( u part_countu superu pop( u self( u __class__( u1 /opt/alt/python33/lib64/python3.3/email/header.pyu pop0 s u _Accumulator.popc C s t d d � | D� | j � S( Nc s s+ | ]! \ } } t | � t | � Vq d S( N( u len( u .0u fwsu part( ( u1 /opt/alt/python33/lib64/python3.3/email/header.pyu <genexpr>6 s u' _Accumulator.__len__.<locals>.<genexpr>( u sumu _initial_size( u self( ( u1 /opt/alt/python33/lib64/python3.3/email/header.pyu __len__5 s u _Accumulator.__len__c C s t j d d � | D� � S( Nc s s* | ] \ } } t j | | f � Vq d S( N( u EMPTYSTRINGu join( u .0u fwsu part( ( u1 /opt/alt/python33/lib64/python3.3/email/header.pyu <genexpr>: s u' _Accumulator.__str__.<locals>.<genexpr>( u EMPTYSTRINGu join( u self( ( u1 /opt/alt/python33/lib64/python3.3/email/header.pyu __str__9 s u _Accumulator.__str__c C s2 | d k r g } n | | d d � <d | _ d S( Ni ( u Noneu _initial_size( u selfu startval( ( u1 /opt/alt/python33/lib64/python3.3/email/header.pyu reset= s u _Accumulator.resetc C s& | j d k o% | p% t | � j � S( Ni ( u _initial_sizeu stru isspace( u self( ( u1 /opt/alt/python33/lib64/python3.3/email/header.pyu is_onlywsC s u _Accumulator.is_onlywsc s t � j � S( N( u superu __len__( u self( u __class__( u1 /opt/alt/python33/lib64/python3.3/email/header.pyu part_countF s u _Accumulator.part_countN( u __name__u __module__u __qualname__u __init__u pushu pop_fromu popu __len__u __str__u Noneu resetu is_onlywsu part_count( u __locals__( ( u __class__u1 /opt/alt/python33/lib64/python3.3/email/header.pyu _Accumulator" s u _Accumulatoru (% u __doc__u __all__u reu binasciiu email.quoprimimeu emailu email.base64mimeu email.errorsu HeaderParseErroru charsetu _charsetu Charsetu NLu SPACEu BSPACEu SPACE8u EMPTYSTRINGu MAXLINELENu FWSu USASCIIu UTF8u compileu VERBOSEu IGNORECASEu MULTILINEu ecreu fcreu _embeded_headeru quoprimimeu _max_appendu decode_headeru Noneu make_headeru Headeru _ValueFormatteru listu _Accumulator( ( ( u1 /opt/alt/python33/lib64/python3.3/email/header.pyu <module> s< `��
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