Wwg}< |dZddlZddlmZddlmZmZddlmZddlm Z ddl m Z m Z m Z mZmZmZddlmZmZgd Zd Z d Zd Zd ZdZdZdQdeedefdZdefdZdQdedefdZdefdZ dRdZ!dSde"fdZ#de"fdZ$dSde"fdZ%edGdd Z&Gd!d"e'Z(Gd#d$e(Z)Gd%d&e)Z*Gd'd(e)Z+Gd)d*e(Z,Gd+d,e)Z-d-Z.Gd.d/eZ/Gd0d1eZ0Gd2d3Z1dd4d5e2d6e fd7Z3ed8Z4ed9Z5ed:Z6d;e e4de6fde e4de e4ddffd?Z8 dQd@ee9e:fde ee9e:ffdAZ;dQd@e9fdBZZ?dFZ@dGZAdHZBde eCgeffdIZDdJeCdefdKZEGdLdMee4ZFdNe e4dee4fdOZGdPZHy)Tz Utility functions for PDF library. Taken from PyPDF2 with modifications and additions, see :ref:`here ` for the original license of the PyPDF2 project. Generally, all of these constitute internal API, except for the exception classes. N) dataclass)datetimetimezone)Enum)BytesIO)Callable GeneratorIterableOptionalTypeVarUnion)CancelableAsyncIteratorConsList)PdfError PdfReadErrorPdfStrictReadError PdfWriteErrorPdfStreamErrorIndirectObjectExpected get_and_apply OrderedEnumStringWithLanguageis_regular_characterread_non_whitespaceread_until_whitespaceread_until_delimiterread_until_regexskip_over_whitespaceskip_over_comment instance_testpeek!assert_writable_and_random_accessprepare_rw_output_streamfinalise_outputDEFAULT_CHUNK_SIZE chunked_writechunked_digest chunk_streamr Singletonrdisoparselift_iterable_asyncict|dS)N)roundxs M/var/www/horilla/myenv/lib/python3.12/site-packages/pyhanko/pdf_utils/misc.pyr39s uQ{cfdS)Nct|SN) isinstance)r1clss r2r3zinstance_test..=sZ3'r4)r9s`r2r r <s ''r4c#Kt|} t|} t|}||f#t$rYywxYw#t$r tdwxYww)NzList has odd number of elements)iternext StopIteration ValueError)lstix1x2s r2 pair_iterrD@sp S A  aB @aB"f      @>? ? @s/ A . =A :A:AAAs s ()<>[]{}/%maxcharsreturnc&tt||S)a Reads non-whitespace characters and returns them. Stops upon encountering whitespace, or, if ``maxchars`` is not ``None``, when maxchars is reached. :param stream: stream to read :param maxchars: maximal number of bytes to read before returning )rE)_read_until_classPDF_WHITESPACE)streamrEs r2rrRs ^Vh GGr4cttttz|}|jdtj |S)z Read until a token delimiter (i.e. a delimiter character or a PDF whitespace character) is encountered, and rewind the stream to the previous character. :param stream: A stream. :return: The bytes read. )rHrIPDF_DELIMITERSseekosSEEK_CUR)rJresults r2rras,~> GF KKBKK Mr4 class_charscNdk(ryfd}dj|S)Nrr4c3Kdnjz}j|kr4jd}|vs|sy|j|kr3yyw)N)tellread)stop_attokrRrErJs r2_buildz!_read_until_class.._builduse"*$ 0H&++-'"9++a.Ck!I &++-'"9sA A%A%#A%)join)rRrJrErZs``` r2rHrHqs%1} 88FH r4 byte_valuec&|tvxr|tvSr7)rIrM)r\s r2rrs ^ + P .0PPr4c8td} |tvr*|s|rytd|jd}|tvr*|dk7rn5|jdtj t |td}m|r |jdtj |S)zQ Finds and reads the next non-whitespace character (ignores whitespace). rr4Stream ended prematurelyrU%rL)rIrrWrNrOrPr)rJ seek_back allow_eofrYs r2rrs  C ^#()CDD++a.C ^# $;  KKBKK ( f % #C  B $ Jr4c(td}d}|tvr[|jd}|s td|dz }|r-|dk(r|dkDS|dk(r|jd}|dk(s|s|dkDSn |tvr[|jdtj |dkDS)a Similar to :func:`read_non_whitespace`, but returns a ``bool`` if more than one whitespace character was read. Will return the cursor to before the first non-whitespace character encountered, or after the first end-of-line sequence if one is encountered. rrUr_  rL)rIrWrrNrOrP)rJstop_after_eolrYcntnxts r2rrs  C C  kk!n !;< < q e|Qwkk!n%$>?r4r7)r|r}r~r rrrrs@r2rrs@HSM@@r4rc eZdZy)rNrr:r4r2rrrr4rc eZdZy)rNrr:r4r2rrrr4rcPttfd}|fS)Nc3.KEd{y7wr7r:)firstitrsr2_itrzpeek.._itr"s s )r<r=)rrrs` @r2r!r!s( s)C IE $&=r4c(eZdZdZdZdZdZdZy)rz6 Ordered enum (from the Python documentation) cp|j|jur|j|jk\Str7rruNotImplementedErrorrzothers r2__ge__zOrderedEnum.__ge__.+ >>U__ ,::, ,!!r4cp|j|jur|j|jkDStr7rrs r2__gt__zOrderedEnum.__gt__3+ >>U__ ,:: + +!!r4cp|j|jur|j|jkStr7rrs r2__le__zOrderedEnum.__le__8rr4cp|j|jur|j|jkStr7rrs r2__lt__zOrderedEnum.__lt__=rr4Nr|r}r~rrrrrr:r4r2rr)s" " " "r4rc(eZdZdZdZdZdZdZy) VersionEnumz Ordered enum with support for ``None``, for future-proofing version-based enums. 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Intended to be used for writing & updating signed files: when producing a signature, we render the PDF to a byte buffer with placeholder values for the signature data, or straight to the provided output stream if possible. More precisely: this function will return the original output stream if it is writable, readable and seekable. If the ``output`` parameter is ``None``, not readable or not seekable, this function will return a :class:`.BytesIO` instance instead. If the ``output`` parameter is not ``None`` and not writable, :class:`.IOError` will be raised. :param output: A writable file-like object, or ``None``. :return: A file-like object that supports reading, writing and seeking. )rr"rs r2r#r#s-(~ M18YF Mr4c|I||urEt|tsJ|j}|j||j |S|S)z Several internal APIs transparently replaces non-readable/seekable buffers with BytesIO for signing operations, but we don't want to expose that to the public API user. This internal API function handles the unwrapping. )r8r getbufferrrelease) orig_outputreturned_outputraw_bufs r2r$r$sS;o#E/7333!++-'" r4cR ddlm}|S#t$rtjcYSwxYw)Nr)r+)dateutil.parserr+ ImportErrorr fromisoformat)parses r2 _get_isoparser s,&5 &%%%&s  &&dt_strct}||}|j |jtj}|S)N)tzinfo)rrreplacerutc)rrdts r2r+r+s5'4E vB yy ZZx||Z , Ir4c0eZdZdefdZdZdeefdZy)_LiftedIterablerFc4Kt|jSwr7)r=rArys r2 __anext__z_LiftedIterable.__anext__"sDFF|sc Kywr7r:rys r2cancelz_LiftedIterable.cancel%s srAc$t||_yr7)r<rA)rzrAs r2rz_LiftedIterable.__init__(s ar4N)r|r}r~rrrr rr:r4r2rr!s#(1+r4rrAct|Sr7)r)rAs r2r,r,,s 1 r4c|D]}||cSyr7r:)rargs r2coalescer 0s  ?J r4r7)FF)F)IrrO dataclassesrrrenumriortypingrr r r r r pyhanko_certvalidator.utilrr__all__r%r*r rDrIrMintbytesrrrHrrboolrrrr Exceptionrrrrrrr!rrrdictrrrrrr bytearrayrr(r'r&rr)r"r#r$rrr+rr,r r:r4r2rs !'JJH B( " HHSM HU H E  5 E QSQ2$>2@ $   %y%  8   @\@  H  \ "$"45"$5"p,,IMd8 CL CL CL 1dA: &.sAv&6q$zx{yD$7 AEy*,- eIz)*+2  y 3$:$ &xx0 &SX-a08A;+B1+Er4