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PdfParser.cpython-310.pyc
o Z#a @ s d dl Z d dlZd dlZd dlZd dlZd dlZd dlZd dlZdd Zi dddddd d d d d ddddddddddddddd d d d d d!d"d#d$d%i d&d'd(d)d*d+d,d-d.d/d0d1d2d3d4d5d6d7d8d9d:d;d<d=d>d?d@dAdBdCdDdEdFdGdHdIdJdKdLdMdNdOZ dPdQ Z G dRdS dSe Z dTdU Z G dVdW dWedXdYdZgZG d[d\ d\eZG d]d^ d^ZG d_d` d`ZG dadb dbeZG dcdd ddejZG dedf dfZG dgdh dhZdidj ZG dkdl dlZdS )m Nc C s t j| d S )N utf_16_be)codecs BOM_UTF16_BEencode)s r //usr/lib/python3/dist-packages/PIL/PdfParser.py encode_text r u ˘ u ˇ u ˆ u ˙ u ˝ u ˛ u ˚ u ˜ u • u † u ‡ u … u — u – u ƒ u ⁄ u ‹ u › u − u ‰ u „ u “ u ” u ‘ u ’ u ‚ u ™ u fi u fl u Ł u Œ u Š u Ÿu Žu ıu łu œu šu žu €) c C sD | d t tj tjkr| t tjd dS ddd | D S )Nr c s s | ] }t |t|V qd S N)PDFDocEncodinggetchr).0byter r r <genexpr>B s z decode_text.<locals>.<genexpr>)lenr r decodejoin)br r r decode_text> s rA c @ s e Zd ZdZdS )PdfFormatErrorz\An error that probably indicates a syntactic or semantic error in the PDF file structureN)__name__ __module__ __qualname____doc__r r r r rB E s rB c C s | st |d S r6 )rB ) condition error_messager r r check_format_conditionL s rI c @ s4 e Zd Zdd Zdd Zdd Zdd Zd d Zd S ) IndirectReferencec C d| S )Nz%s %s Rr selfr r r __str__T zIndirectReference.__str__c C s | dS Nus-ascii)rN r rL r r r __bytes__W s zIndirectReference.__bytes__c C s$ |j | j u o|j| jko|j| jkS r6 ) __class__ object_id generationrM otherr r r __eq__Z s zIndirectReference.__eq__c C s | |k S r6 r rV r r r __ne__a zIndirectReference.__ne__c C s t | j| jfS r6 )hashrT rU rL r r r __hash__d r zIndirectReference.__hash__N)rC rD rE rN rR rX rY r\ r r r r rJ Q s rJ IndirectReferenceTuplerT rU c @ e Zd Zdd ZdS )IndirectObjectDefc C rK )Nz %s %s objr rL r r r rN i rO zIndirectObjectDef.__str__N)rC rD rE rN r r r r r_ h r_ c @ sL e Zd Zdd Zdd Zdd Zdd Zd d Zd d Zd d Z dd Z dS ) XrefTablec C s i | _ i | _ddi| _d| _d S )Nr i F)existing_entries new_entriesdeleted_entriesreading_finishedrL r r r __init__n s zXrefTable.__init__c C s6 | j r || j|< n|| j|< || jv r| j|= d S d S r6 )re rc rb rd rM keyvaluer r r __setitem__t s zXrefTable.__setitem__c C s* z| j | W S ty | j| Y S w r6 )rc KeyErrorrb rM rh r r r __getitem__| s zXrefTable.__getitem__c C s || j v r| j | d d }| j |= || j|< d S || jv r.| j| d d }|| j|< d S || jv r:| j| }d S tdt| d )N z object ID z+ cannot be deleted because it doesn't exist)rc rd rb IndexErrorstr)rM rh rU r r r __delitem__ s zXrefTable.__delitem__c C s || j v p || jv S r6 )rb rc rl r r r __contains__ zXrefTable.__contains__c C s. t t| j t| j B t| j B S r6 )r= setrb keysrc rd rL r r r __len__ s zXrefTable.__len__c C s* t | j t | j t | j B S r6 )rt rb ru rd rc rL r r r ru s zXrefTable.keysc C sF t t| j t| j B }t t| j }| }|d |rd }t|D ] \}}|d u s8|d |kr;|}q*|d | }||d } n|}d }|d|d t|f |D ]B} | | jv rn|d| j| q\| d} t | | kd| d| z|d } W n t y d} Y nw |d| | j| f q\|s$|S ) Ns xref rn s %d %d r s %010d %05d n z*expected the next deleted object ID to be z, instead found s %010d %05d f ) sortedrt rc ru rd tellwrite enumerater= poprI ro ) rM fru deleted_keys startxrefprevindexrh contiguous_keysrT this_deleted_object_idnext_in_linked_listr r r ry sJ zXrefTable.writeN) rC rD rE rf rj rm rq rr rv ru ry r r r r ra m s ra c @ sd e Zd Zdd Zdd Zdd Zdd Zd d Zed d Z e e d ddd dD Z dd Z dS )PdfNamec C s: t |tr |j| _d S t |tr|| _d S |d| _d S rP ) isinstancer namebytesr )rM r r r r rf s zPdfName.__init__c C s | j dS rP )r r> rL r r r name_as_str s zPdfName.name_as_strc C s t |to |j| jkp|| jkS r6 )r r r rV r r r rX s zPdfName.__eq__c C s t | jS r6 )r[ r rL r r r r\ rZ zPdfName.__hash__c C s dt | j dS )NzPdfName())reprr rL r r r __repr__ s zPdfName.__repr__c C s | t |S r6 ) PdfParserinterpret_name)clsdatar r r from_pdf_stream s zPdfName.from_pdf_stream! c C s h | ]}t |qS r )ord)r: cr r r <setcomp> s zPdfName.<setcomp>z #%/()<>[]{}c C s@ t d}| jD ]}|| jv r|| q|d| qt|S )N /s #%02X) bytearrayr allowed_charsappendextendr )rM resultr@ r r r rR s zPdfName.__bytes__N)rC rD rE rf r rX r\ r classmethodr rt ranger rR r r r r r s r c @ r^ )PdfArrayc C s dd dd | D d S )Ns [ c s s | ]}t |V qd S r6 )pdf_repr)r: xr r r r< z%PdfArray.__bytes__.<locals>.<genexpr>s ])r? rL r r r rR zPdfArray.__bytes__N)rC rD rE rR r r r r r r` r c @ s$ e Zd Zdd Zdd Zdd ZdS )PdfDictc C s. |dkrt j| || d S || |d< d S )Nr rQ ) collectionsUserDict __setattr__r rg r r r r s zPdfDict.__setattr__c C s z | | d }W n ty } zt||d }~ww t|tr$t|}|dr|dr4|dd }d}t|dkrZ|d }t |dd d }t|d krZ|t |d d 7 }d d t|d }t |d t|d |}|d v r|d 9 }|dkr|d9 }t t || }|S )NrQ DatezD: Z < z %Y%m%d%H%M%S)+-r )r rk AttributeErrorr r rA endswith startswithr= inttimestrptimegmtimecalendartimegm)rM rh ri e relationshipoffsetformatr r r __getattr__ s2 zPdfDict.__getattr__c C sn t d}| D ]%\}}|d u rqt|}|d |tt| |d || q|d t|S )Ns << r s >>)r itemsr r r r )rM outrh ri r r r rR s zPdfDict.__bytes__N)rC rD rE r r rR r r r r r s r c @ e Zd Zdd Zdd ZdS ) PdfBinaryc C s || _ d S r6 )r )rM r r r r rf % rZ zPdfBinary.__init__c C s dd dd | jD S )Ns <%s> c s s | ]}d | V qdS )s %02XNr r: r@ r r r r< ) r z&PdfBinary.__bytes__.<locals>.<genexpr>)r? r rL r r r rR ( s zPdfBinary.__bytes__N)rC rD rE rf rR r r r r r $ s r c @ r ) PdfStreamc C s || _ || _d S r6 ) dictionarybuf)rM r r r r r rf - s zPdfStream.__init__c C s z| j j}W n ty | j Y S w |dkr5z| j j}W n ty* | j j}Y nw tj| jt|dS t dt | j j d)Ns FlateDecode)bufsizezstream filter z unknown/unsupported) r Filterr r DLLengthzlib decompressr NotImplementedErrorr )rM filterexpected_lengthr r r r> 1 s zPdfStream.decodeN)rC rD rE rf r> r r r r r , s r c C s | du rdS | du r dS | d u rdS t | ttttfr t| S t | tr+t| dS t | t r7t| dS t | t j rJdt d| d d S t | t rUtt| S t | tr`tt| S t | trktt| S t | tr| d d } | d d } | d d} d | d S t| S )NTs trueFs falses nullrQ s (D:z %Y%m%d%H%M%SZ ) \s \\ ( \(s \))r r r r r r r rp r floatr struct_timestrftimedictlistr r replace)r r r r r B s4 r c @ s e Zd ZdZdrddZdd Zd d Zd d Zd d Zdd Z dd Z dd Z dd Z dd Z dd Zdsdd Zd d Zd d Zd!d" Zed#d$ Zd%d& Zdsd'd(Zd)Zd*Zd+Zd,Zed- Zed. Z d/Z d0Z e e e Z e !e d1 e d2 e d3 e d4 e d5 e d6 e j"Z#e !ed1 e d7 e d3 e d4 e d5 e e j"Z$d8d9 Z%d:d; Z&e !eZ'e !ed< e d= Z(e !ed> Z)e !ed? e Z*e+d@dA Z,e !dBZ-e+dtdDdEZ.e !edF e d= Z/e !edG e d= Z0e !edH e d= Z1e !edI e d= Z2e !edJ e d= Z3e !edK Z4e !edL Z5e !edM e dN Z6e !edO Z7e !edP e dP e dQ e d= Z8e !edP e dP e dR e d= Z9e !edS e d= Z:e !dTe dU e dV Z;e !edW Z<e !edX e d= Z=e+dudZd[Z>e !d\Z?i d]d^d_d`dadbdcdddedfdTdTd=d=dgdge@d]d^e@d_d`e@dadbe@dcdde@dedfe@dTdTe@d=d=e@dgdgZAe+dhdi ZBe !edj e ZCe !ed4 e d4 e e ZDe !dkZEdldm ZFdvdndoZGdsdpdqZHdS )wr z|Based on https://www.adobe.com/content/dam/acom/en/devnet/acrobat/pdfs/PDF32000_2008.pdf Supports PDF up to 1.4 Nr rbc C s |r|rt d|| _|| _|| _|| _d| _d| _|d ur-|d u r-t|| | _}d| _|d urG| | | _}d| _|sGt |drG|j | _i | _ |rQ| n*d | _ | _t | _d | _t | _d | _i | _g | _g | _d | _d | _i | _t | _d| j_ |r| d S d S )Nz4specify buf or f or filename, but not both buf and fFTr r ) RuntimeErrorfilenamer r| start_offsetshould_close_bufshould_close_fileopenget_buf_from_filehasattrr cached_objects read_pdf_infofile_size_totalfile_size_thisr rootroot_refinfoinfo_refpage_tree_rootpages orig_pages pages_reflast_xref_section_offset trailer_dictra xref_tablere seek_end)rM r r| r r moder r r rf g sF zPdfParser.__init__c C s | S r6 r rL r r r __enter__ s zPdfParser.__enter__c C s | dS )NF)close)rM exc_type exc_value tracebackr r r __exit__ s zPdfParser.__exit__c C s | | d S r6 ) close_bufr rL r r r start_writing s zPdfParser.start_writingc C s, z| j W n ty Y nw d | _ d S r6 )r r r rL r r r r s zPdfParser.close_bufc C s: | j r| | jd ur| jr| j d | _d S d S d S r6 )r r r| r r rL r r r r s zPdfParser.closec C s | j dtj d S )Nr )r| seekosSEEK_ENDrL r r r r rs zPdfParser.seek_endc C s | j d d S )Ns %PDF-1.4 )r| ry rL r r r write_header r zPdfParser.write_headerc C s | j d| d d S )Nz% )r| ry r )rM r r r r write_comment r zPdfParser.write_commentc C sl | | | j | _| d| _| | j| jtd| jd | j| jtdt | j | j d | jS )Nr Catalog)TypePages Pages)r CountKids) del_rootnext_object_idr| rx r r rewrite_pages write_objr r= r rL r r r write_catalog s zPdfParser.write_catalogc C s g }t | jD ]N\}}| j| }| j|j= ||td || jvr$qi }| D ] \}}||| < q*| j |d< | j di |}t | jD ] \} } | |krT|| j| < qGq|D ] } | rt| j| } | j| jv rl| j| j= | dd } | s\qXg | _d S )Ns ParentParentr6 ) rz r r r rT r r r r r r write_pager8 ) rM pages_tree_nodes_to_deleteipage_ref page_infostringified_page_inforh ri new_page_refj cur_page_refpages_tree_node_refpages_tree_noder r r r s4 zPdfParser.rewrite_pagesc C s |r | || _| jr| d | j| _| j| j}t| j}| j|d}| j d ur0| j |d< | jr8| j|d< || _ | jdt t | d| d S )N) Root Size Prev Infos trailer s startxref %d %%%%EOF) r r r r r r ry r| r= r r r )rM new_root_ref start_xref num_entriesr r r r write_xref_and_trailer s( z PdfParser.write_xref_and_trailerc O sR t |tr | j| }d|vrtd|d< d|vr | j|d< | j|g|R i |S )Nr Pager )r r r r r r )rM refobjsdict_objr r r r s zPdfParser.write_pagec O s | j }|d u r| | }n | |jf| j|j< |tt| | dd }|d ur3t ||d< |r<|t | |D ] }|t | q>|d ur[|d || |d |d |S )Nstreamr s stream s endstream s endobj ) r| r rx rU r rT ry r r_ r{ r= r )rM r' r( r) r| r* objr r r r s$ zPdfParser.write_objc C s. | j d u rd S | j| j j= | j| jd j= d S )Nr )r r rT r rL r r r r s zPdfParser.del_rootc C sR t | dr | S t | dr| S z tj| dtjdW S ty( Y dS w )N getbuffergetvaluer )accessr )r r, r- mmapfileno ACCESS_READ ValueError)r| r r r r s zPdfParser.get_buf_from_filec C s t | j| _| j| j | _| | jd | _| jdd | _ t | | j| _ | j d u r2t | _ n t | | j | _ td| j v d t| j d dkd td| j v d tt| j d td | j d | _| | j| _| | j| _| jd d | _d S ) Nr r! Typez/Type missing in Rootr z /Type in Root is not /Catalogr z/Pages missing in Rootz+/Pages in Root is not an indirect reference)r= r r r r read_trailerr r r8 r r read_indirectr r rI r rJ r r linearize_page_treer r rL r r r r s, zPdfParser.read_pdf_infoc C sV zt t| j d d}W n ty t dd}Y nw |d ur)|df| j|j< |S )Nrn r )rJ maxr ru r2 rT )rM r referencer r r r 9 s zPdfParser.next_object_ids [][()<>{}/%]s$ [][()<>{}/%\000\011\012\014\015\040]s [\000\011\012\014\015\040]s# [\000\011\012\014\015\0400-9a-fA-F] * +s [\000\011\014\040]*s [\r\n]+s trailers \<\<(.*\>\>)s startxrefs ([0-9]+)s %%EOF $s \<\<(.*?\>\>)c C s t | jd }|| jk r| j}| j| j|}t|d |}|r0|}| j| j| d }|s |s4|}|d}t|d| _ | || _ t | _ | j| j d d| j v ra| | j d d S d S )N @ ztrailer end not found rn r xref_section_offsetr )r= r r re_trailer_endsearchrI startgroupr r interpret_trailerr ra r read_xref_tableread_prev_trailer)rM search_start_offsetm last_match trailer_datar r r r4 k s( zPdfParser.read_trailerc C sz | j |d}| j| j||d }t|d |d}tt|d|kd | |}d|v r;| |d d S d S )Nr> r< zprevious trailer not foundrn r zGxref section offset in previous trailer doesn't match what was expectedr ) rE re_trailer_prevrA r rI rC r rD rF )rM r? trailer_offsetrH rJ r r r r rF s zPdfParser.read_prev_trailers /([!-$&'*-.0-;=?-Z\\^-z|~]+)(?=r s \<\<s \>\>c C s i }d} | j ||}|s+| j||}t|o | t|kdt||d n| |d}| || \}}|||< qtd|v oMt |d t d td|v o[t |d t d |S ) Nr Tz+name not found in trailer, remaining data: rn r z&/Size not in trailer or not an integerr z1/Root not in trailer or not an indirect reference) re_namematch re_dict_endrI endr= r r rC get_valuer r rJ )r rJ trailerr rH rh ri r r r rD s4 zPdfParser.interpret_trailers ([^#]*)(#([0-9a-fA-F]{2}))?Fc C sj d}| j |D ]!}|dr"||dt|dd 7 }q||d7 }q|r1|dS t|S )Nr rn rQ zutf-8)re_hashes_in_namefinditerrC r fromhexr> r )r rawas_textr rH r r r r s & zPdfParser.interpret_names null(?=s true(?=s false(?=s ([-+]?[0-9]+)(?=s) ([-+]?([0-9]+\.[0-9]*|[0-9]*\.[0-9]+))(?=s \[ ]s \<(s *)\>r s ([-+]?[0-9]+)s R(?=s obj(?=s endobj(?=r s %[^\r\n]*s )*s stream\r?\ns endstream(?=r c C s |dkrdS | j ||}|r| }| j||}|rttt|ddkd tt|ddkd t|d u pI|tt|dt|dkd | j|| |d d\}}|d u rb|d fS | j ||}t|d || fS t| d | j ||}|rtt|ddkd tt|ddkd tt|dt|d| fS | j ||}|ra| }i }| j ||}|s| j|||d d\}}|d u r|d fS | j|||d d\} }| ||< |d u r|d fS | j ||}|r| }| j ||}|rYzt|d } W n tttfy- } z td|d d | d } ~ ww || | | } | j|| | }t|d | }tt|| }||fS t|}||fS | j||}|r| }g }| j||}|s| j|||d d\} }|| |d u r|d fS | j||}|r{|| fS | j||}|rd | fS | j||}|rd| fS | j||}|rd| fS | j ||}|rt | |d| fS | j ||}|rt|d| fS | j ||}|rt!|d| fS | j"||}|rIt#dd |dD } t$| d dkr=| t%d t#&| 'd| fS | j(||}|r[| )|| S tdt*|||d )Nr )NNrn z<indirect object definition: object ID must be greater than 0r z;indirect object definition: generation must be non-negativez2indirect object definition different than expected) max_nestingz(indirect object definition end not foundz$indirect object definition not foundz;indirect object reference: object ID must be greater than 0z:indirect object reference: generation must be non-negatives Lengthz)bad or missing Length in stream dict (%r)zstream end not foundTFc s s | ] }|d v r|V qdS )s 0123456789abcdefABCDEFNr r r r r r< a s z&PdfParser.get_value.<locals>.<genexpr> 0rQ zunrecognized object: )+ re_commentrN rP re_indirect_def_startrI r rC rJ rQ re_indirect_def_endre_indirect_reference re_dict_startrO re_stream_start TypeErrorrk r2 rB r8 re_stream_endr r re_array_start re_array_endr re_nullre_truere_falserM r r re_intre_realr re_string_hexr r= r rV r> re_string_litget_literal_stringr )r r r expect_indirectrZ rH objectr rh ri stream_lenr stream_data hex_stringr r r rQ s & zPdfParser.get_valuesF (\\[nrtbf()\\])|(\\[0-9]{1,3})|(\\(\r\n|\r|\n))|(\r\n|\r|\n)|(\()|(\)) nr r t b f r c C s d}t }| j||D ]u}|||| |dr,|| j|dd nQ|drA|t|ddd d n<|drGn6|drR|d n+|dra|d |d7 }n |d r}|dkrtt || f S |d |d8 }| }q t d ) Nr rn r rS r r r zunfinished literal string) r re_lit_str_tokenrU r rB rC escaped_charsr r r rP rB )r r r nesting_depthr rH r r r rn s, z PdfParser.get_literal_strings xrefs+ ([0-9]{10}) ([0-9]{5}) ([fn])( \r| \n|\r\n)c C s d}| j | j|| j }t|d | } | j| j|}|s)t|d |S d}| }t|d}t|d}t ||| D ]@}| j | j|}t|d | }|dd k}t|d} |st|d| f} t|| j vp|| j | | kd | | j |< qDq) NFz xref section start not foundTz xref subsection start not foundrn r zxref entry not foundrS r{ z)xref entry duplicated (and not identical)) re_xref_section_startrN r r rI rP re_xref_subsection_startr rC r re_xref_entryr ) rM r? subsection_foundrH r first_object num_objectsr is_freerU new_entryr r r rE sB zPdfParser.read_xref_tablec C st | j |d \}}t||d kd|d d|d d| d| | j| j|| j t| |dd }|| j|< |S )Nr rn z expected to find generation z for object ID z) in xref table, instead found generation z at offset )ro rZ )r rI rQ r r rJ r )rM r' rZ r rU ri r r r r5 s& zPdfParser.read_indirectc C sj |d u r| j }t|d dkd g }|d D ] }| |}|d dkr)|| q|| j|d q|S )Nr3 r z%/Type of page tree node is not /Pagess Kidsr& )node)r rI r5 r r r6 )rM r r kid kid_objectr r r r6 s z PdfParser.linearize_page_tree)NNNr r r6 )F)Nr )r )IrC rD rE rF rf r r r r r r r r r r r% r r r staticmethodr r r delimiterdelimiter_or_ws whitespacewhitespace_or_hexwhitespace_optionalwhitespace_mandatorywhitespace_optional_no_nl newline_onlynewlinerecompileDOTALLr@ rK r4 rF re_whitespace_optionalrM ra rO r rD rT r rg rh ri rj rk re rf rl rm r` r^ r_ r] rb rd rQ r r r rn r r r rE r5 r6 r r r r r a s % y !r )r r r r/ r r r r r r7 rA r rB rI namedtuplerJ r_ ra r r r r r r r r r r r r r <module> s !"#- ['0