U e5düXã@s¶dZddgZddlZddlmZddlmZddlmZddl m Z e  d ¡Z e  d ¡Z e  d ¡Ze  d ¡Ze  d ¡Zd ZdZeƒZGdd„deƒZGdd„dƒZGdd„deƒZdS)aFeedParser - An email feed parser. The feed parser implements an interface for incrementally parsing an email message, line by line. This has advantages for certain applications, such as those reading email messages off a socket. FeedParser.feed() is the primary interface for pushing new data into the parser. It returns when there's nothing more it can do with the available data. When you have no more data to push into the parser, call .close(). This completes the parsing and returns the root message object. The other advantage of this parser is that it will never raise a parsing exception. Instead, when it finds something unexpected, it adds a 'defect' to the current message. Defects are just instances that live on the message object's .defects attribute. Ú FeedParserÚBytesFeedParseréN)Úerrors)Úcompat32)Údeque)ÚStringIOz \r\n|\r|\nz (\r\n|\r|\n)z(\r\n|\r|\n)\Zz%^(From |[\041-\071\073-\176]*:|[\t ])ÚÚ c@s`eZdZdZdd„Zdd„Zdd„Zdd „Zd d „Zd d „Z dd„Z dd„Z dd„Z dd„Z dS)ÚBufferedSubFileakA file-ish object that can have new data loaded into it. You can also push and pop line-matching predicates onto a stack. When the current predicate matches the current line, a false EOF response (i.e. empty string) is returned instead. This lets the parser adhere to a simple abstraction -- it parses until EOF closes the current message. cCs$tdd|_tƒ|_g|_d|_dS)Nr)ÚnewlineF)rÚ_partialrÚ_linesÚ _eofstackÚ_closed©Úself©rú(/usr/lib64/python3.8/email/feedparser.pyÚ__init__5s zBufferedSubFile.__init__cCs|j |¡dS©N)rÚappend)rZpredrrrÚpush_eof_matcher@sz BufferedSubFile.push_eof_matchercCs |j ¡Sr)rÚpoprrrrÚpop_eof_matcherCszBufferedSubFile.pop_eof_matchercCs<|j d¡| |j ¡¡|j d¡|j ¡d|_dS)NrT)r ÚseekÚ pushlinesÚ readlinesÚtruncaterrrrrÚcloseFs    zBufferedSubFile.closecCsL|js|jrdStS|j ¡}t|jƒD]}||ƒr(|j |¡dSq(|S©Nr)r rÚ NeedMoreDataÚpopleftÚreversedrÚ appendleft)rÚlineZateofrrrÚreadlineNs  zBufferedSubFile.readlinecCs|j |¡dSr)r r#©rr$rrrÚ unreadline`szBufferedSubFile.unreadlinecCsx|j |¡d|kr d|kr dS|j d¡|j ¡}|j d¡|j ¡|d d¡sj|j | ¡¡| |¡dS)z$Push some new data into this object.r ú Nréÿÿÿÿ)r ÚwriterrrÚendswithrr)rÚdataÚpartsrrrÚpushes     zBufferedSubFile.pushcCs|j |¡dSr)r Úextend)rÚlinesrrrrzszBufferedSubFile.pushlinescCs|SrrrrrrÚ__iter__}szBufferedSubFile.__iter__cCs| ¡}|dkrt‚|Sr)r%Ú StopIterationr&rrrÚ__next__€szBufferedSubFile.__next__N)Ú__name__Ú __module__Ú __qualname__Ú__doc__rrrrr%r'r.rr1r3rrrrr -s r c@s`eZdZdZdedœdd„Zdd„Zdd „Zd d „Zd d „Z dd„Z dd„Z dd„Z dd„Z dS)rzA feed-style parser of email.N©ÚpolicycCsž||_d|_|dkr<|jdkr2ddlm}||_qn|j|_n2||_z||jdWntk rld|_YnXtƒ|_g|_ |  ¡j |_ d|_ d|_d|_dS)a_factory is called with no arguments to create a new message obj The policy keyword specifies a policy object that controls a number of aspects of the parser's operation. The default policy maintains backward compatibility. FNr)ÚMessager8T)r9Ú_old_style_factoryZmessage_factoryZ email.messager:Ú_factoryÚ TypeErrorr Ú_inputÚ _msgstackÚ _parsegenr3Ú_parseÚ_curÚ_lastÚ _headersonly)rr<r9r:rrrr‹s$     zFeedParser.__init__cCs d|_dS)NT)rDrrrrÚ_set_headersonlyªszFeedParser._set_headersonlycCs|j |¡| ¡dS)zPush more data into the parser.N)r>r.Ú _call_parse©rr,rrrÚfeed­s zFeedParser.feedcCs&z | ¡Wntk r YnXdSr)rAr2rrrrrF²s zFeedParser._call_parsecCsH|j ¡| ¡| ¡}| ¡dkrD| ¡sDt ¡}|j  ||¡|S)zrrFÚ _pop_messageÚget_content_maintypeZ is_multipartrZ!MultipartInvariantViolationDefectr9Ú handle_defect)rÚrootÚdefectrrrr¸s  ÿzFeedParser.closecCsn|jr| ¡}n|j|jd}|jr<|j ¡dkr<| d¡|jrR|jd |¡|j |¡||_||_ dS)Nr8zmultipart/digestzmessage/rfc822r)) r;r<r9rBÚget_content_typeZset_default_typer?ZattachrrC)rÚmsgrrrÚ _new_messageÅs   zFeedParser._new_messagecCs(|j ¡}|jr|jd|_nd|_|S)Nr))r?rrB)rÚretvalrrrrJÒs  zFeedParser._pop_messageccs| ¡g}|jD]Z}|tkr&tVqt |¡sbt |¡s^t ¡}|j  |j |¡|j  |¡qn|  |¡q|  |¡|jrÈg}|j ¡}|tkrœtVq‚|dkr¦q²|  |¡q‚|j  t |¡¡dS|j  ¡dkrŠ|j tj¡| ¡D]}|tkrtVqîq qî| ¡}|j ¡|j ¡}|tkrDtVqqDq|j ¡}|tkrjtVqDqjqD|dkrxq†|j  |¡qØdS|j  ¡dkrÐ| ¡D] }|tkrºtVq¢qÄq¢| ¡dS|j  ¡dkrÔ|j  ¡}|dkrRt ¡}|j  |j |¡g}|jD]$}|tkr.tVq|  |¡q|j  t |¡¡dSt|j  dd¡ƒ ¡dkr†t ¡}|j  |j |¡d|}t  d t !|¡d ¡} d } g} d } d } |j ¡}|tkrÔtVq¶|dkrâqÂ|  |¡}|r´| "d ¡rd } | "d¡} qÂ| rr| r^| d}t# $|¡}|rP|dt%| "d¡ƒ …| d<t | ¡|j _&d } |j  |¡q¶|j ¡}|tkrtVqr|  |¡}|sr|j  |¡q´qr|j | j¡| ¡D] }|tkrâtVqÊqìqÊ|j' ¡dkrT|j'j(}|dkrd|j'_(n:|dk r˜t# $|¡}|r˜t%| "d¡ƒ}|d| …|j'_(nD|j'j)}t*|tƒr˜t# $|¡}|r˜|dt%| "d¡ƒ …}||j'_)|j ¡| ¡|j |_'n |   |¡q¶| r*t +¡}|j  |j |¡|j  t | ¡¡g}|jD]}|tkrütVqüqüt |¡|j _(dS| sLt ,¡}|j  |j |¡dS| rZdg}ng}|jD]$}|tkr|tVqd|  |¡qd|rÂ|d}t- |¡}|rÂ|t%| "d¡ƒd…|d<t |¡|j _(dSg}|jD]$}|tkrötVqÞ|  |¡qÞ|j  t |¡¡dS)Nrzmessage/delivery-statusÚmessagerIzcontent-transfer-encodingÚ8bit)Z7bitrTZbinaryz--z(?Pz4)(?P--)?(?P[ \t]*)(?P\r\n|\r|\n)?$TFÚendÚlinesepr)r).rQr>r ÚheaderREÚmatchÚNLCRErZ MissingHeaderBodySeparatorDefectr9rLrBr'rÚ_parse_headersrDr%Z set_payloadÚ EMPTYSTRINGÚjoinrOrr@rJrrKZ get_boundaryZNoBoundaryInMultipartDefectÚstrÚgetÚlowerZ-InvalidMultipartContentTransferEncodingDefectÚreÚcompileÚescapeÚgroupÚ NLCRE_eolÚsearchÚlenÚpreamblerCÚepilogueZ_payloadÚ isinstanceZStartBoundaryNotFoundDefectZCloseBoundaryNotFoundDefectÚ NLCRE_bol)rZheadersr$rNr0rRrPÚboundaryZ separatorZ boundaryreZcapturing_preamblergrVZclose_boundary_seenÚmoZlastlineZeolmorhrUZpayloadÚ firstlineZbolmorrrr@Ús`                       ÿ ÿÿ                              zFeedParser._parsegenc CsXd}g}t|ƒD]&\}}|ddkrR|sFt |¡}|j |j|¡q| |¡q|rt|jj|j |¡Ždg}}|  d¡rø|dkr¼t   |¡}|r¬|dt |  d¡ƒ …}|j |¡qn<|t |ƒdkrÞ|j |¡dSt |¡}|jj |¡q| d¡}|dkr&t d¡}|jj |¡q|d|…}|g}q|rT|jj|j |¡ŽdS)Nrrz zFrom éú:zMissing header name.)Ú enumeraterZ#FirstHeaderLineIsContinuationDefectr9rLrBrZset_rawZheader_source_parseÚ startswithrdrerfrcZ set_unixfromr>r'ZMisplacedEnvelopeHeaderDefectZdefectsÚfindZInvalidHeaderDefect) rr0Z lastheaderZ lastvalueÚlinenor$rNrlÚirrrrZ×sF             zFeedParser._parse_headers)N)r4r5r6r7rrrErHrFrrQrJr@rZrrrrrˆs  ~cs eZdZdZ‡fdd„Z‡ZS)rz(Like FeedParser, but feed accepts bytes.cstƒ | dd¡¡dS)NÚasciiÚsurrogateescape)ÚsuperrHÚdecoderG©Ú __class__rrrHszBytesFeedParser.feed)r4r5r6r7rHÚ __classcell__rrryrrs)r7Ú__all__r`ZemailrZemail._policybaserÚ collectionsrÚiorrarYrjrdZ NLCRE_crackrWr[ÚNLÚobjectr r rrrrrrÚs(         [