jDSSKrSSKrSSKrSSKrSSKJr SSKJr SSKJ r SSK J r SSK Jr SSKJrJr SSKJr SSKJr SS KJr SS KJrJr SS KJr SS KJr SS KJ r \RB"\"5r#"SS\5r$g)N)BytesIO)Path)ZipFile)DefusedXmlException)DoclingDocumentDocumentOrigin)override)DeclarativeDocumentBackend)HTMLDocumentBackend)EpubBackendOptionsHTMLBackendOptions) InputFormat) InputDocument)DocumentLoadErrorc^\rSrSrSrSS\S\\-S\S-4U4Sjjjr Sr S \S \ 4S jr S r S \S\S \4SjrS \S \4Sjr\S \ 4Sj5r\S5r\\S \ 4Sj55r\\S \\4Sj55r\S \4Sj5rSrU=r$)EpubDocumentBackendaBackend for converting EPUB files to DoclingDocument format. EPUB files are essentially ZIP archives containing XHTML content files. This backend extracts the content and delegates to HTMLDocumentBackend for processing the XHTML structure. Note: This module enforces limits when extracting EPUB archives for image processing. These limits prevent malicious EPUBs from exhausting disk space or memory through decompression bombs. Limits can be configured via EpubBackendOptions. Known Limitations: Internal anchor links (e.g., footnote references) are converted but the target anchor IDs are not preserved in the final Markdown output. This is a limitation of the HTML-to-DoclingDocument conversion process. Links like [1](#note-1) will be present, but the corresponding anchor targets may not be accessible in the exported Markdown. Nin_docpath_or_streamoptionsc>Uc [5n[TU] XU5 [R S5 X lSUlSUl/Ul0Ul SUl [UR [5(a[UR S5UlOF[UR [5(a[UR S5UlO [S5eUR!5 SUl[R S[#UR5S35 g![$a7n[R'SU35 [)S UR*S 35UeSnAff=f) NzStarting EpubDocumentBackend...Frz&path_or_stream must be BytesIO or PathTzFound z content files in EPUBz#Failed to initialize EPUB backend: z5Could not initialize EPUB backend for file with hash .)r super__init___logdebugrvalidepub_zip content_filesmetadatatemp_dir isinstancerrr ValueError_parse_epub_structurelen Exceptionerrorr document_hash)selfrrre __class__s Y/home/mande/repo/quber/.venv/lib/python3.13/site-packages/docling/backend/epub_backend.pyrEpubDocumentBackend.__init__0s6 ?(*G 9 45, (, (*(* %)  $--w77 '(;(;S A D//66 '(;(;S A  !IJJ  & & (DJ JJD$6$6 788NO P  JJ:NPQB%**+BBGH !KLL||K0H !GHH}}))(3H}}X.H  " "8 ,$x.//0G#~; z bytes)z'EPUB archive exceeds total size limit (zSuccessfully extracted z members (TzError during EPUB extraction: z Failed to extract EPUB archive: N)rrmax_total_bytesmax_file_bytesmax_member_countinfolistrwarning file_sizefilenameextractrr'r(rB) r*rT total_bytes member_countrYrZr[memberr+s r-_safe_extract_epub&EpubDocumentBackend._safe_extract_epubs}}  ,,6644<<88" N--002! 2LLCDTCUUVW!##n4LL&v&78",,-S0@I!/// 0LLA/ARRYZ! %%f9134 JJ),z+gV  N JJ7s; <!A!EFA M Ns,AE AE !-E ;E F'E<<Fc"SS0nSS0nURSU5nUcgSHInURSU3U5nUcMUR(dM0URURU'MK [R S UR35 g) z#Extract metadata from the OPF file.dcz http://purl.org/dc/elements/1.1/r2r3z.//opf:metadataN)titlecreator publisherdatelanguage identifierzdc:zExtracted metadata: )r;textr!rr)r*rIns_dcrKr!fieldelements r-r=%EpubDocumentBackend._extract_metadatas9:78==!2F;    Emmc%M59G"w|||'.|| e$  )$--9: html_contentcontent_file_pathc^UR(dU$[U5RmU4SjnSn[R"XCU5$)a Convert relative image paths to paths relative to temp directory root. Args: html_content: HTML content with image references content_file_path: Path of the current XHTML file (for resolving relative paths) Returns: HTML content with fixed image paths c8>URS5nURS5(aURS5$T(aTU- nO [U5nSUS3$![a6n[R SUSU35 URS5sSnA$SnAff=f)NrW)zdata:zhttp://zhttps://r7rzsrc=""zFailed to resolve image path : )group startswithrr'rr])matchsrc image_pathr+ content_dirs r-replace_image_src?EpubDocumentBackend._fix_image_paths..replace_image_srcs++a.C~~CDD{{1~%(3. !#Y  &zl!,, & SnAff=f)zClean up resources.Nz Cleaned up temporary directory: z'Failed to clean up temporary directory ry) rcloser#rrr"existsshutilrmtreerrr'r])r*r+s r-unloadEpubDocumentBackend.unload3s == MM   ! 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This method extracts all content files from the EPUB and processes them sequentially using the HTMLDocumentBackend. zConverting EPUB...zCannot convert EPUB with hash z$ because the backend failed to init.filezapplication/epub+zip)r_mimetype binary_hash)nameorigin docling_epub_)prefixz(Extracting EPUB to temporary directory: zOEPUB extraction aborted due to size/count limits. 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