3 \O@sjdZddlmZddlmZddlmZddlmZGdddZGdd d Z Gd d d e Z d d Z GdddZ Gddde ZGdddZGdddeZGdddZGdddeZGdddeZGdddeZGdddZGd d!d!ZGd"d#d#eZGd$d%d%eZGd&d'd'Zeeeeeeeeeeeeeeeeeeed(ZGd)d*d*Zd+S),a;Representing and manipulating email headers via custom objects. This module provides an implementation of the HeaderRegistry API. The implementation is designed to flexibly follow RFC5322 rules. Eventually HeaderRegistry will be a public API, but it isn't yet, and will probably change some before that happens. )MappingProxyType)utils)errors)_header_value_parserc@s^eZdZdddZeddZeddZed d Zed d Zd dZ ddZ ddZ dS)AddressNcCsl|dk rV|s|rtdtj|\}}|r:tdj|||jrJ|jd|j}|j}||_||_ ||_ dS)aCreate an object representing a full email address. An address can have a 'display_name', a 'username', and a 'domain'. In addition to specifying the username and domain separately, they may be specified together by using the addr_spec keyword *instead of* the username and domain keywords. If an addr_spec string is specified it must be properly quoted according to RFC 5322 rules; an error will be raised if it is not. An Address object has display_name, username, domain, and addr_spec attributes, all of which are read-only. The addr_spec and the string value of the object are both quoted according to RFC5322 rules, but without any Content Transfer Encoding. Nz=addrspec specified when username and/or domain also specifiedz6Invalid addr_spec; only '{}' could be parsed from '{}'r) TypeErrorparserZ get_addr_spec ValueErrorformat all_defects local_partdomain _display_name _username_domain)self display_nameusernamer addr_specZa_srestr&/usr/lib64/python3.6/headerregistry.py__init__s  zAddress.__init__cCs|jS)N)r)rrrrr7szAddress.display_namecCs|jS)N)r)rrrrr;szAddress.usernamecCs|jS)N)r)rrrrr?szAddress.domaincCsTt|j}t|t|tjkr.tj|j}n|j}|jrH|d|jS|sPdS|S)zThe addr_spec (username@domain) portion of the address, quoted according to RFC 5322 rules, but with no Content Transfer Encoding. @z<>)setrlenr Z DOT_ATOM_ENDS quote_stringr)rnamesetZlprrrrCs zAddress.addr_speccCsdj|jj|j|j|jS)Nz1{}(display_name={!r}, username={!r}, domain={!r}))r __class____name__rrr)rrrr__repr__SszAddress.__repr__cCs^t|j}t|t|tjkr.tj|j}n|j}|rX|jdkrFdn|j}dj||S|jS)Nz<>rz{} <{}>)rrrr SPECIALSrrr )rrdisprrrr__str__Xs  zAddress.__str__cCs8t|t|krdS|j|jko6|j|jko6|j|jkS)NF)typerrr)rotherrrr__eq__cs   zAddress.__eq__)rrrN) r __module__ __qualname__rpropertyrrrrr!r$r'rrrrrs %     rc@sFeZdZdddZeddZeddZdd Zd d Zd d Z dS)GroupNcCs||_|rt|nt|_dS)aCreate an object representing an address group. 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N)rtuple _addresses)rr addressesrrrrmszGroup.__init__cCs|jS)N)r)rrrrrszGroup.display_namecCs|jS)N)r-)rrrrr.szGroup.addressescCsdj|jj|j|jS)Nz${}(display_name={!r}, addresses={!r})r rr rr.)rrrrr!szGroup.__repr__cCs|jdkr&t|jdkr&t|jdS|j}|dk r\t|}t|t|tjkr\tj|}djdd|jD}|r~d|n|}dj ||S)Nrz, css|]}t|VqdS)N)str).0xrrr sz Group.__str__.. z{}:{};) rrr.r0rr r"rjoinr )rr#rZadrstrrrrr$s z Group.__str__cCs,t|t|krdS|j|jko*|j|jkS)NF)r%rr.)rr&rrrr's z Group.__eq__)NN) r r(r)rr*rr.r!r$r'rrrrr+ks     r+c@sTeZdZdZddZddZeddZedd Zd d Z e d d Z ddZ dS) BaseHeadera|Base class for message headers. Implements generic behavior and provides tools for subclasses. A subclass must define a classmethod named 'parse' that takes an unfolded value string and a dictionary as its arguments. The dictionary will contain one key, 'defects', initialized to an empty list. After the call the dictionary must contain two additional keys: parse_tree, set to the parse tree obtained from parsing the header, and 'decoded', set to the string value of the idealized representation of the data from the value. (That is, encoded words are decoded, and values that have canonical representations are so represented.) The defects key is intended to collect parsing defects, which the message parser will subsequently dispose of as appropriate. The parser should not, insofar as practical, raise any errors. Defects should be added to the list instead. The standard header parsers register defects for RFC compliance issues, for obsolete RFC syntax, and for unrecoverable parsing errors. The parse method may add additional keys to the dictionary. In this case the subclass must define an 'init' method, which will be passed the dictionary as its keyword arguments. The method should use (usually by setting them as the value of similarly named attributes) and remove all the extra keys added by its parse method, and then use super to call its parent class with the remaining arguments and keywords. The subclass should also make sure that a 'max_count' attribute is defined that is either None or 1. XXX: need to better define this API. cCs\dgi}|j||tj|dr4tj|d|d<tj||d}|d=|j|f||S)Ndefectsdecoded)parserZ_has_surrogates _sanitizer0__new__init)clsnamevaluekwdsrrrrr;s zBaseHeader.__new__cCs||_||_||_dS)N)_name _parse_tree_defects)rr> parse_treer7rrrr<szBaseHeader.initcCs|jS)N)rA)rrrrr>szBaseHeader.namecCs t|jS)N)r,rC)rrrrr7szBaseHeader.defectscCst|jj|jjt|f|jfS)N)_reconstruct_headerrr __bases__r0__dict__)rrrr __reduce__s zBaseHeader.__reduce__cCs tj||S)N)r0r;)r=r?rrr _reconstructszBaseHeader._reconstructcCs`tjtjtj|jdtjddgg}|jrH|jtjtjddg|j|j|j |dS)atFold header according to policy. 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The string includes the header name and the ': ' separator. z header-name:z header-sepr4Zfws)policy) r ZHeaderZ HeaderLabelZ ValueTerminalr>rBappendZCFWSListZWhiteSpaceTerminalfold)rrKheaderrrrrMs  zBaseHeader.foldN) r r(r)__doc__r;r<r*r>r7rH classmethodrIrMrrrrr6s     r6cCst||ij|S)N)r%rI)Zcls_namebasesr?rrrrEsrEc@s&eZdZdZeejZeddZ dS)UnstructuredHeaderNcCs"|j||d<t|d|d<dS)NrDr8) value_parserr0)r=r?r@rrrr9szUnstructuredHeader.parse) r r(r) max_count staticmethodr get_unstructuredrSrPr9rrrrrR s rRc@seZdZdZdS)UniqueUnstructuredHeaderr/N)r r(r)rTrrrrrWsrWcsFeZdZdZdZeejZe ddZ fddZ e ddZ ZS) DateHeaderaHeader whose value consists of a single timestamp. Provides an additional attribute, datetime, which is either an aware datetime using a timezone, or a naive datetime if the timezone in the input string is -0000. Also accepts a datetime as input. The 'value' attribute is the normalized form of the timestamp, which means it is the output of format_datetime on the datetime. NcCsz|s6|djtjd|d<d|d<tj|d<dSt|trJtj|}||d<tj |d|d<|j |d|d<dS)Nr7datetimerr8rD) rLrZHeaderMissingRequiredValuer Z TokenList isinstancer0rZparsedate_to_datetimeZformat_datetimerS)r=r?r@rrrr9)s   zDateHeader.parsecs|jd|_tj||dS)NrY)pop _datetimesuperr<)rargskw)rrrr<7s zDateHeader.initcCs|jS)N)r\)rrrrrY;szDateHeader.datetime)r r(r)rOrTrUr rVrSrPr9r<r*rY __classcell__rr)rrrXs     rXc@seZdZdZdS)UniqueDateHeaderr/N)r r(r)rTrrrrra@sracsPeZdZdZeddZeddZfddZe dd Z e d d Z Z S) AddressHeaderNcCstj|\}}|S)N)r Zget_address_list)r? address_listrrrrSIszAddressHeader.value_parsercCst|trZ|j||d<}g}x,|jD]"}|jt|jdd|jDq(Wt|j }n"t |dsj|g}dd|D}g}||d<||d<dj d d|D|d <d|kr|j|d |d<dS) NrDcSs*g|]"}t|jpd|jpd|jp"dqS)r)rrr r)r1Zmbrrr Xsz'AddressHeader.parse..__iter__cSs&g|]}t|dstd|gn|qS)r.N)hasattrr+)r1itemrrrrdasgroupsr7z, cSsg|] }t|qSr)r0)r1rgrrrrdgsr8) rZr0rSr.rLr+rZ all_mailboxeslistr rfr5)r=r?r@rcrhZaddrr7rrrr9Os$     zAddressHeader.parsecs(t|jd|_d|_tj||dS)Nrh)r,r[_groupsr-r]r<)rr^r_)rrrr<kszAddressHeader.initcCs|jS)N)rj)rrrrrhpszAddressHeader.groupscCs&|jdkr tdd|jD|_|jS)NcSsg|]}|jD]}|qqSr)r.)r1groupaddressrrrrdwsz+AddressHeader.addresses..)r-r,rj)rrrrr.ts zAddressHeader.addresses) r r(r)rTrUrSrPr9r<r*rhr.r`rr)rrrbEs     rbc@seZdZdZdS)UniqueAddressHeaderr/N)r r(r)rTrrrrrm|srmc@seZdZeddZdS)SingleAddressHeadercCs(t|jdkrtdj|j|jdS)Nr/z9value of single address header {} is not a single addressr)rr.r r r>)rrrrrls zSingleAddressHeader.addressN)r r(r)r*rlrrrrrnsrnc@seZdZdZdS)UniqueSingleAddressHeaderr/N)r r(r)rTrrrrrosrocsZeZdZdZeejZeddZ fddZ e ddZ e dd Z e d d ZZS) MIMEVersionHeaderr/cCs|j||d<}t||d<|dj|j|jdkrr?rrr sz1ParameterizedMIMEHeader.parse..)rSr0rtr ry)r=r?r@rDrrrr9s   zParameterizedMIMEHeader.parsecs|jd|_tj||dS)Nry)r[_paramsr]r<)rr^r_)rrrr<s zParameterizedMIMEHeader.initcCs t|jS)N)rr|)rrrrryszParameterizedMIMEHeader.params) r r(r)rTrPr9r<r*ryr`rr)rrrxs rxcsJeZdZeejZfddZeddZ eddZ eddZ Z S) ContentTypeHeadercs2tj||tj|jj|_tj|jj|_dS)N) r]r<rr:rBmaintype _maintypesubtype_subtype)rr^r_)rrrr<szContentTypeHeader.initcCs|jS)N)r)rrrrr~szContentTypeHeader.maintypecCs|jS)N)r)rrrrrszContentTypeHeader.subtypecCs|jd|jS)N/)r~r)rrrr content_typeszContentTypeHeader.content_type) r r(r)rUr Zparse_content_type_headerrSr<r*r~rrr`rr)rrr}s     r}cs2eZdZeejZfddZeddZ Z S)ContentDispositionHeadercs2tj|||jj}|dkr"|ntj||_dS)N)r]r<rBcontent_dispositionrr:_content_disposition)rr^r_Zcd)rrrr<szContentDispositionHeader.initcCs|jS)N)r)rrrrrsz,ContentDispositionHeader.content_disposition) r r(r)rUr Z parse_content_disposition_headerrSr<r*rr`rr)rrrs  rcsBeZdZdZeejZeddZ fddZ e ddZ Z S)ContentTransferEncodingHeaderr/cCs2|j||d<}t||d<|dj|jdS)NrDr8r7)rSr0rtr )r=r?r@rDrrrr9s z#ContentTransferEncodingHeader.parsecs"tj||tj|jj|_dS)N)r]r<rr:rBcte_cte)rr^r_)rrrr<sz"ContentTransferEncodingHeader.initcCs|jS)N)r)rrrrrsz!ContentTransferEncodingHeader.cte)r r(r)rTrUr Z&parse_content_transfer_encoding_headerrSrPr9r<r*rr`rr)rrrs    r)ZsubjectZdatez resent-datez orig-dateZsenderz resent-senderZtoz resent-toZccz resent-ccZbccz resent-bccfromz resent-fromzreply-toz mime-versionz content-typezcontent-dispositionzcontent-transfer-encodingc@s8eZdZdZeedfddZddZddZd d Z d S) HeaderRegistryz%A header_factory and header registry.TcCs&i|_||_||_|r"|jjtdS)aCreate a header_factory that works with the Policy API. base_class is the class that will be the last class in the created header class's __bases__ list. default_class is the class that will be used if "name" (see __call__) does not appear in the registry. use_default_map controls whether or not the default mapping of names to specialized classes is copied in to the registry when the factory is created. The default is True. N)registry base_class default_classupdate_default_header_map)rrrZuse_default_maprrrr's zHeaderRegistry.__init__cCs||j|j<dS)zLRegister cls as the specialized class for handling "name" headers. N)rrz)rr>r=rrr map_to_type9szHeaderRegistry.map_to_typecCs,|jj|j|j}td|j||jfiS)N_)rgetrzrr%r r)rr>r=rrr __getitem__?szHeaderRegistry.__getitem__cCs||||S)aCreate a header instance for header 'name' from 'value'. Creates a header instance by creating a specialized class for parsing and representing the specified header by combining the factory base_class with a specialized class from the registry or the default_class, and passing the name and value to the constructed class's constructor. r)rr>r?rrr__call__Cs zHeaderRegistry.__call__N) r r(r)rOr6rRrrrrrrrrr#s  rN)rOtypesrZemailrrrr rr+r0r6rErRrWrXrarbrmrnrorprxr}rrrrrrrr sR    [6d '7 %