import?os
import?struct
from?shutil?import?copy
from?subprocess?import?check_output?STDOUT?CalledProcessError
from?utils?import?fnd?fnd_all?add_outlines?fnd_rvrs?fnd_unuse_no

KDH_PASSPHRASE?=?b“FZHMEI“


class?CAJParser（object）:
????def?__init__（self?filename）:
????????self.filename?=?filename
????????try:
????????????with?open（filename?“rb“）?as?caj:
????????????????fmt?=?struct.unpack（“4s“?caj.read（4））[0].replace（b‘\x00‘?b‘‘）.decode（“gb18030“）
????????????if?fmt?==?“CAJ“:
????????????????self.format?=?“CAJ“
????????????????self._PAGE_NUMBER_OFFSET?=?0x10
????????????????self._TOC_NUMBER_OFFSET?=?0x110
????????????elif?fmt?==?“HN“:
????????????????self.format?=?“HN“
????????????????self._PAGE_NUMBER_OFFSET?=?0x90
????????????????self._TOC_NUMBER_OFFSET?=?0x158
????????????elif?fmt?==?“%PDF“:
????????????????self.format?=?“PDF“
????????????elif?fmt?==?“KDH?“:
????????????????self.format?=?“KDH“
????????????else:
????????????????self.format?=?None
????????????????raise?SystemExit（“Unknown?file?type.“）
????????except?UnicodeDecodeError:
????????????raise?SystemExit（“Unknown?file?type.“）

????@property
????def?page_num（self）:
????????with?open（self.filename?“rb“）?as?caj:
????????????caj.seek（self._PAGE_NUMBER_OFFSET）
????????????[page_num]?=?struct.unpack（“i“?caj.read（4））
????????????return?page_num

????@property
????def?toc_num（self）:
????????with?open（self.filename?“rb“）?as?caj:
????????????caj.seek（self._TOC_NUMBER_OFFSET）
????????????[toc_num]?=?struct.unpack（“i“?caj.read（4））
????????????return?toc_num

????def?get_toc（self）:
????????toc?=?[]
????????with?open（self.filename?“rb“）?as?caj:
????????????for?i?in?range（self.toc_num）:
????????????????caj.seek（self._TOC_NUMBER_OFFSET?+?4?+?0x134?*?i）
????????????????toc_bytes?=?struct.unpack（“256s24s12s12si“?caj.read（0x134））
????????????????ttl_end?=?toc_bytes[0].find（b“\x00“）
????????????????title?=?toc_bytes[0][0:ttl_end].decode（“gb18030“）.encode（“utf-8“）
????????????????pg_end?=?toc_bytes[2].find（b“\x00“）
????????????????page?=?int（toc_bytes[2][0:pg_end]）
????????????????level?=?toc_bytes[4]
????????????????toc_entry?=?{“title“:?title?“page“:?page?“l(fā)evel“:?level}
????????????????toc.append（toc_entry）
????????return?toc

????def?output_toc（self?dest）:
????????toc_items?=?self.get_toc（）
????????with?open（dest?“wb“）?as?f:
????????????for?toc?in?toc_items:
????????????????f.write（b‘????‘?*?（toc[“l(fā)evel“]?-?1）?+?toc[“title“]
????????????????????????+?b‘????‘?+?str（toc[“page“]）.encode（“utf-8“）?+?b‘\n‘）

????def?convert（self?dest）:
????????if?self.format?==?“CAJ“:
????????????self._convert_caj（dest）
????????elif?self.format?==?“HN“:
????????????self._convert_hn（dest）
????????elif?self.format?==?“PDF“:
????????????self._convert_pdf（dest）
????????elif?self.format?==?“KDH“:
????????????self._convert_kdh（dest）

????def?_convert_caj（self?dest）:
????????caj?=?open（self.filename?“rb“）

????????#?Extract?original?PDF?data?（and?add?header）
????????caj.seek（self._PAGE_NUMBER_OFFSET?+?4）
??????

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件????1274316??2020-12-08?20:28??caj2pdf-master\.github\111.caj

????.......????????30??2020-01-18?22:00??caj2pdf-master\.github\FUNDING.yml

????.......??????1774??2020-01-18?22:00??caj2pdf-master\.gitignore

?????文件????????464??2020-12-08?20:45??caj2pdf-master\.idea\caj2pdf-master.iml

?????文件????????174??2020-12-08?20:45??caj2pdf-master\.idea\inspectionProfiles\profiles_settings.xml

?????文件????????204??2020-12-08?20:45??caj2pdf-master\.idea\misc.xml

?????文件????????287??2020-12-08?20:45??caj2pdf-master\.idea\modules.xml

?????文件???????3194??2020-12-08?21:09??caj2pdf-master\.idea\workspace.xml

?????文件???????1965??2020-12-08?21:09??caj2pdf-master\caj2pdf

?????文件??????11354??2020-12-08?21:00??caj2pdf-master\cajparser.py

????.......???????958??2020-01-18?22:00??caj2pdf-master\LICENSE

?????文件???37354496??2020-10-07?19:31??caj2pdf-master\mutool.exe

????.......??????3199??2020-01-18?22:00??caj2pdf-master\README.md

????.......??????5894??2020-01-18?22:00??caj2pdf-master\utils.py

?????文件???????7870??2020-12-08?21:00??caj2pdf-master\__pycache__\cajparser.cpython-37.pyc

?????文件???????5934??2020-12-08?20:48??caj2pdf-master\__pycache__\utils.cpython-37.pyc

?????目錄??????????0??2020-12-08?20:45??caj2pdf-master\.idea\inspectionProfiles

?????目錄??????????0??2020-12-08?20:47??caj2pdf-master\.github

?????目錄??????????0??2020-12-08?21:09??caj2pdf-master\.idea

?????目錄??????????0??2020-12-08?21:00??caj2pdf-master\__pycache__

?????目錄??????????0??2020-12-08?21:09??caj2pdf-master

-----------?---------??----------?-----??----

?????????????38672113????????????????????21