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quoprimime.pyc
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� { fc @ s5 d Z d d d d d d d d d d d d d d g Z d d l Z d d l m Z d d l m Z d Z d Z d Z e j d � Z e j d � Z d � Z d � Z d � Z d � Z d d � Z d � Z d � Z d e d! e d" � Z e d! e d# � Z e Z e Z e d$ � Z e Z e Z d% � Z d& � Z d S(' sF Quoted-printable content transfer encoding per RFCs 2045-2047. This module handles the content transfer encoding method defined in RFC 2045 to encode US ASCII-like 8-bit data called `quoted-printable'. It is used to safely encode text that is in a character set similar to the 7-bit US ASCII character set, but that includes some 8-bit characters that are normally not allowed in email bodies or headers. Quoted-printable is very space-inefficient for encoding binary files; use the email.base64mime module for that instead. This module provides an interface to encode and decode both headers and bodies with quoted-printable encoding. RFC 2045 defines a method for including character set information in an `encoded-word' in a header. This method is commonly used for 8-bit real names in To:/From:/Cc: etc. fields, as well as Subject: lines. This module does not do the line wrapping or end-of-line character conversion necessary for proper internationalized headers; it only does dumb encoding and decoding. To deal with the various line wrapping issues, use the email.header module. t body_decodet body_encodet body_quopri_checkt body_quopri_lent decodet decodestringt encodet encodestringt header_decodet header_encodet header_quopri_checkt header_quopri_lent quotet unquotei����N( t hexdigits( t fix_eolss s i s [^-a-zA-Z0-9!*+/ ]s [^ !-<>-~\t]c C s t t j | � � S( sB Return True if the character should be escaped with header quopri.( t boolt hqret match( t c( ( s( /usr/lib64/python2.7/email/quoprimime.pyR ? s c C s t t j | � � S( s@ Return True if the character should be escaped with body quopri.( R t bqreR ( R ( ( s( /usr/lib64/python2.7/email/quoprimime.pyR D s c C sA d } x4 | D], } t j | � r/ | d 7} q | d 7} q W| S( s? Return the length of str when it is encoded with header quopri.i i i ( R R ( t st countR ( ( s( /usr/lib64/python2.7/email/quoprimime.pyR I s c C sA d } x4 | D], } t j | � r/ | d 7} q | d 7} q W| S( s= Return the length of str when it is encoded with body quopri.i i i ( R R ( t strR R ( ( s( /usr/lib64/python2.7/email/quoprimime.pyR T s t c C sj | s | j | j � � nJ t | d � t | � | k rS | d c | | 7<n | j | j � � d S( Ni����( t appendt lstript len( t LR t maxlent extra( ( s( /usr/lib64/python2.7/email/quoprimime.pyt _max_append_ s c C s t t | d d !d � � S( sD Turn a string in the form =AB to the ASCII character with value 0xabi i i ( t chrt int( R ( ( s( /usr/lib64/python2.7/email/quoprimime.pyR h s c C s d t | � S( Ns =%02X( t ord( R ( ( s( /usr/lib64/python2.7/email/quoprimime.pyR m s s iso-8859-1iL c C s� | s | S| s t | � } n g } | d k r: d } n | t | � t d } xi | D]a } | d k r~ t | d | � qY t j | � s� t | | | � qY t | d t | � | � qY W| d } | j g | D] } d | | f ^ q� � S( s� Encode a single header line with quoted-printable (like) encoding. Defined in RFC 2045, this `Q' encoding is similar to quoted-printable, but used specifically for email header fields to allow charsets with mostly 7 bit characters (and some 8 bit) to remain more or less readable in non-RFC 2045 aware mail clients. charset names the character set to use to encode the header. It defaults to iso-8859-1. The resulting string will be in the form: "=?charset?q?I_f=E2rt_in_your_g=E8n=E8ral_dire=E7tion?\n =?charset?q?Silly_=C8nglish_Kn=EEghts?=" with each line wrapped safely at, at most, maxlinelen characters (defaults to 76 characters). If maxlinelen is None, the entire string is encoded in one chunk with no splitting. End-of-line characters (\r, \n, \r\n) will be automatically converted to the canonical email line separator \r\n unless the keep_eols parameter is True (the default is False). Each line of the header will be terminated in the value of eol, which defaults to "\n". Set this to "\r\n" if you are using the result of this function directly in email. i�� i t t _s =%02Xs =?%s?q?%s?=N( R t NoneR t MISC_LENR R R R" t join( t headert charsett keep_eolst maxlinelent eolt quotedt max_encodedR t joinert line( ( s( /usr/lib64/python2.7/email/quoprimime.pyR r s c C sF | s | S| s t | � } n d } d } | j d � } x| D]�} | j t � rc | d } n | d t k r� | d } n | d 7} d } d } t | � } x� t | � D]� } | | } | } t j | � r� t | � } n5 | d | k r| d k r | | 7} n | } q� n t | � t | � | k rO| | d | 7} d } n | | 7} q� W| r�| d k r�| d t | � k r�t | � } t | � t | � | k r�| | d | | 7} q�| | | 7} n | | | d | 7} d } n | | j t � s | | d t k r.| | | 7} n | | 7} d } qA W| S( s� Encode with quoted-printable, wrapping at maxlinelen characters. If binary is False (the default), end-of-line characters will be converted to the canonical email end-of-line sequence \r\n. Otherwise they will be left verbatim. Each line of encoded text will end with eol, which defaults to "\n". Set this to "\r\n" if you will be using the result of this function directly in an email. Each line will be wrapped at, at most, maxlinelen characters (defaults to 76 characters). Long lines will have the `soft linefeed' quoted-printable character "=" appended to them, so the decoded text will be identical to the original text. R i����i i����s t =N( R t splitlinest endswitht CRLFR% R t rangeR R R ( t bodyt binaryR+ R, t encoded_bodyt linenot linesR0 t encoded_linet prevt linelent jR ( ( s( /usr/lib64/python2.7/email/quoprimime.pyR � sV ' c C sx | s | Sd } x5| j � D]'} | j � } | sE | | 7} q n d } t | � } x� | | k rC| | } | d k r� | | 7} | d 7} n� | d | k r� | d 7} qZ nt | d | k r| | d t k r| | d t k r| t | | | d !� 7} | d 7} n | | 7} | d 7} | | k rZ | | 7} qZ qZ Wq W| j | � rt| j | � rt| d } n | S( s_ Decode a quoted-printable string. Lines are separated with eol, which defaults to \n. R i R1 i i i i����( R2 t rstripR R R R3 ( t encodedR, t decodedR0 t it nR ( ( s( /usr/lib64/python2.7/email/quoprimime.pyR s8 8 c C s | j d � } t | � S( sC Turn a match in the form =AB to the ASCII character with value 0xabi ( t groupR ( R R ( ( s( /usr/lib64/python2.7/email/quoprimime.pyt _unquote_matchA s c C s% | j d d � } t j d t | � S( s Decode a string encoded with RFC 2045 MIME header `Q' encoding. This function does not parse a full MIME header value encoded with quoted-printable (like =?iso-8859-1?q?Hello_World?=) -- please use the high level email.header class for that functionality. R$ R# s =[a-fA-F0-9]{2}( t replacet ret subRE ( R ( ( s( /usr/lib64/python2.7/email/quoprimime.pyR H s ( t __doc__t __all__RG t stringR t email.utilsR R4 t NLR& t compileR R R R R R R R R t FalseR R R R R R R RE R ( ( ( s( /usr/lib64/python2.7/email/quoprimime.pyt <module> sN ?S 0