├── tests ├── test.docx ├── test.pptx └── test.xlsx ├── tests.py ├── ziptools.py ├── README.md ├── constants.py ├── .gitignore ├── unoffice.py ├── zipupdate.py └── LICENSE /tests/test.docx: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/elmoiv/unoffice/HEAD/tests/test.docx -------------------------------------------------------------------------------- /tests/test.pptx: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/elmoiv/unoffice/HEAD/tests/test.pptx -------------------------------------------------------------------------------- /tests/test.xlsx: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/elmoiv/unoffice/HEAD/tests/test.xlsx -------------------------------------------------------------------------------- /tests.py: -------------------------------------------------------------------------------- 1 | from unoffice import unlock 2 | import os 3 | 4 | os.chdir(os.path.dirname(os.path.realpath(__file__))) 5 | 6 | for ext in ['docx', 'pptx', 'xlsx']: 7 | unlock( 8 | os.path.join( 9 | 'tests', 10 | 'test.' + ext 11 | ) 12 | ) -------------------------------------------------------------------------------- /ziptools.py: -------------------------------------------------------------------------------- 1 | from zipupdate import UpdateableZipFile, ZipFile, shutil 2 | 3 | # Extract file from zip 4 | def extract_archive(org, zip_dist, file_dist): 5 | with ZipFile(org) as z: 6 | with z.open(zip_dist) as zf, open(file_dist, 'wb') as f: 7 | shutil.copyfileobj(zf, f) 8 | 9 | # Extract all files inside zip folder 10 | def extract_archive_all(org, zip_dist): 11 | with ZipFile(org) as z: 12 | for _file in filter(lambda i: i.startswith(zip_dist), z.namelist()): 13 | with z.open(_file) as zf, open(_file.split('/')[-1], 'wb') as f: 14 | shutil.copyfileobj(zf, f) 15 | 16 | # Add the extracted file again safely 17 | def update_archive(org, _file, zip_dist): 18 | with UpdateableZipFile(org, "a") as o: 19 | o.write(_file, zip_dist) -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # unoffice 2 | Tiny read-only unlocker for MS Office documents 3 | 4 | # Features 5 | Unoffice can remove the read-only protection of: 6 | - Full and partial protected Word files. 7 | - Full Excel file and partially protected sheets 8 | - PowerPoint protected files. 9 | 10 | # Usage 11 | - via script: 12 | ```python 13 | from unoffice import unlock 14 | 15 | unlock('path\\to\\file.docx') 16 | ``` 17 | - via terminal: 18 | ``` 19 | python unoffice.py "first-path" "second-path" ... "nth-path" 20 | ``` 21 | 22 | # Tests 23 | You can `python tests.py` to see unoffice results 24 | 25 | ## Contributing 26 | Please contribute! If you want to fix a bug, suggest improvements, or add new features to the project, just [open an issue](https://github.com/elmoiv/unoffice/issues/new/choose) or send me a [pull request](https://github.com/elmoiv/unoffice/pulls). 27 | -------------------------------------------------------------------------------- /constants.py: -------------------------------------------------------------------------------- 1 | HELP = ''' 2 | Usage: 3 | - Script version: 4 | 5 | python unoffice.py "path\\to\\example.docx" "path\\to\\example2.xlsx" ... 6 | 7 | - Binary version: 8 | 9 | unoffice "path\\to\\example.docx" "path\\to\\example2.xlsx" ... 10 | 11 | or for (Powershell) 12 | 13 | ./unoffice "path\\to\\example.docx" "path\\to\\example2.xlsx" ... 14 | ''' 15 | 16 | DOCX = ( 17 | # Path inside MS Word archive 18 | 'word/settings.xml', 19 | # Partial Read-only and Full Read-only 20 | r'()?()?' 21 | ) 22 | 23 | PPTX = ( 24 | 'ppt/presentation.xml', 25 | r'' 26 | ) 27 | 28 | XLSX = ( 29 | 'xl/workbook.xml', 30 | r'()?()?' 31 | ) 32 | 33 | EXTS = {'docx': DOCX, 'pptx': PPTX, 'xlsx': XLSX} -------------------------------------------------------------------------------- /.gitignore: -------------------------------------------------------------------------------- 1 | # Byte-compiled / optimized / DLL files 2 | __pycache__/ 3 | *.py[cod] 4 | *$py.class 5 | 6 | # C extensions 7 | *.so 8 | 9 | # Distribution / packaging 10 | .Python 11 | build/ 12 | develop-eggs/ 13 | dist/ 14 | downloads/ 15 | eggs/ 16 | .eggs/ 17 | lib/ 18 | lib64/ 19 | parts/ 20 | sdist/ 21 | var/ 22 | wheels/ 23 | pip-wheel-metadata/ 24 | share/python-wheels/ 25 | *.egg-info/ 26 | .installed.cfg 27 | *.egg 28 | MANIFEST 29 | 30 | # PyInstaller 31 | # Usually these files are written by a python script from a template 32 | # before PyInstaller builds the exe, so as to inject date/other infos into it. 33 | *.manifest 34 | *.spec 35 | 36 | # Installer logs 37 | pip-log.txt 38 | pip-delete-this-directory.txt 39 | 40 | # Unit test / coverage reports 41 | htmlcov/ 42 | .tox/ 43 | .nox/ 44 | .coverage 45 | .coverage.* 46 | .cache 47 | nosetests.xml 48 | coverage.xml 49 | *.cover 50 | *.py,cover 51 | .hypothesis/ 52 | .pytest_cache/ 53 | 54 | # Translations 55 | *.mo 56 | *.pot 57 | 58 | # Django stuff: 59 | *.log 60 | local_settings.py 61 | db.sqlite3 62 | db.sqlite3-journal 63 | 64 | # Flask stuff: 65 | instance/ 66 | .webassets-cache 67 | 68 | # Scrapy stuff: 69 | .scrapy 70 | 71 | # Sphinx documentation 72 | docs/_build/ 73 | 74 | # PyBuilder 75 | target/ 76 | 77 | # Jupyter Notebook 78 | .ipynb_checkpoints 79 | 80 | # IPython 81 | profile_default/ 82 | ipython_config.py 83 | 84 | # pyenv 85 | .python-version 86 | 87 | # pipenv 88 | # According to pypa/pipenv#598, it is recommended to include Pipfile.lock in version control. 89 | # However, in case of collaboration, if having platform-specific dependencies or dependencies 90 | # having no cross-platform support, pipenv may install dependencies that don't work, or not 91 | # install all needed dependencies. 92 | #Pipfile.lock 93 | 94 | # PEP 582; used by e.g. github.com/David-OConnor/pyflow 95 | __pypackages__/ 96 | 97 | # Celery stuff 98 | celerybeat-schedule 99 | celerybeat.pid 100 | 101 | # SageMath parsed files 102 | *.sage.py 103 | 104 | # Environments 105 | .env 106 | .venv 107 | env/ 108 | venv/ 109 | ENV/ 110 | env.bak/ 111 | venv.bak/ 112 | 113 | # Spyder project settings 114 | .spyderproject 115 | .spyproject 116 | 117 | # Rope project settings 118 | .ropeproject 119 | 120 | # mkdocs documentation 121 | /site 122 | 123 | # mypy 124 | .mypy_cache/ 125 | .dmypy.json 126 | dmypy.json 127 | 128 | # Pyre type checker 129 | .pyre/ 130 | -------------------------------------------------------------------------------- /unoffice.py: -------------------------------------------------------------------------------- 1 | from constants import * 2 | from ziptools import update_archive, \ 3 | extract_archive, \ 4 | extract_archive_all 5 | import re, os, shutil, time, sys 6 | 7 | exit = sys.exit 8 | 9 | def timeit(func): 10 | ''' 11 | Decorator for measuring void functions time 12 | ''' 13 | def wrapper(*args, **kwargs): 14 | start = time.time() 15 | func(*args, **kwargs) 16 | print( 17 | f'{os.path.basename(args[0])} Unloc' 18 | f'ked in {time.time() - start:.4f}s' 19 | ) 20 | return wrapper 21 | 22 | def decide(file): 23 | ''' 24 | Detect the extension of input file 25 | 26 | :return: Settings related to this extension 27 | ''' 28 | ext = file.split('.')[-1].lower() 29 | assert ext in EXTS, ext + ' files are not supported!' 30 | return EXTS[ext] 31 | 32 | def omit_protection_code(file, regex): 33 | ''' 34 | Remove protection strings from in office xml files 35 | ''' 36 | locked_xml = re.sub( 37 | regex, 38 | '', 39 | open(file, encoding='utf-8').read() 40 | ) 41 | open(file, 'w', encoding='utf-8').write(locked_xml) 42 | 43 | def handle_xlsx_sheets(file, regex): 44 | ''' 45 | Remove read-only protection for sheets only 46 | ''' 47 | extract_archive_all(file, 'xl/worksheets/') 48 | for sheet in filter(lambda i: i.startswith('sheet'), os.listdir()): 49 | omit_protection_code(sheet, regex) 50 | update_archive(file, sheet, 'xl/worksheets/' + sheet) 51 | os.remove(sheet) 52 | 53 | @timeit 54 | def unlock(file, tmp='tmp'): 55 | ''' 56 | Unlocking read-only protection from office files 57 | ''' 58 | _type = decide(file) 59 | 60 | file = shutil.copy2( 61 | file, 62 | os.path.join( 63 | os.path.dirname(file), 64 | '[UNOFFICE] - ' + os.path.basename(file) 65 | ) 66 | ) 67 | 68 | handle_xlsx_sheets(file, _type[1]) if _type == XLSX else None 69 | extract_archive(file, _type[0], tmp) 70 | omit_protection_code(tmp, _type[1]) 71 | update_archive(file, tmp, _type[0]) 72 | os.remove(tmp) 73 | 74 | def argparse(args=sys.argv[1:]): 75 | ''' 76 | Argument parser for command-line options 77 | ''' 78 | assert len(args), 'Must be 1 or more paths passed' 79 | 80 | valid_paths = list(filter(os.path.exists, args)) 81 | for path in valid_paths: 82 | unlock(path) 83 | 84 | [print, str][valid_paths != []](HELP) 85 | 86 | if __name__ == '__main__': 87 | argparse() -------------------------------------------------------------------------------- /zipupdate.py: -------------------------------------------------------------------------------- 1 | # https://stackoverflow.com/a/35435548/5305953 2 | 3 | import os, shutil, tempfile 4 | from zipfile import * 5 | 6 | class UpdateableZipFile(ZipFile): 7 | """ 8 | Add delete (via remove_file) and update (via writestr and write methods) 9 | To enable update features use UpdateableZipFile with the 'with statement', 10 | Upon __exit__ (if updates were applied) a new zip file will override the exiting one with the updates 11 | """ 12 | 13 | class DeleteMarker(object): 14 | pass 15 | 16 | def __init__(self, file, mode="r", compression=ZIP_STORED, allowZip64=False): 17 | # Init base 18 | super(UpdateableZipFile, self).__init__(file, mode=mode, 19 | compression=compression, 20 | allowZip64=allowZip64) 21 | # track file to override in zip 22 | self._replace = {} 23 | # Whether the with statement was called 24 | self._allow_updates = False 25 | 26 | def writestr(self, zinfo_or_arcname, bytes, compress_type=None): 27 | if isinstance(zinfo_or_arcname, ZipInfo): 28 | name = zinfo_or_arcname.filename 29 | else: 30 | name = zinfo_or_arcname 31 | # If the file exits, and needs to be overridden, 32 | # mark the entry, and create a temp-file for it 33 | # we allow this only if the with statement is used 34 | if self._allow_updates and name in self.namelist(): 35 | temp_file = self._replace[name] = self._replace.get(name, 36 | tempfile.TemporaryFile()) 37 | temp_file.write(bytes) 38 | # Otherwise just act normally 39 | else: 40 | super(UpdateableZipFile, self).writestr(zinfo_or_arcname, 41 | bytes, compress_type=compress_type) 42 | 43 | def write(self, filename, arcname=None, compress_type=None): 44 | arcname = arcname or filename 45 | # If the file exits, and needs to be overridden, 46 | # mark the entry, and create a temp-file for it 47 | # we allow this only if the with statement is used 48 | if self._allow_updates and arcname in self.namelist(): 49 | temp_file = self._replace[arcname] = self._replace.get(arcname, 50 | tempfile.TemporaryFile()) 51 | with open(filename, "rb") as source: 52 | shutil.copyfileobj(source, temp_file) 53 | # Otherwise just act normally 54 | else: 55 | super(UpdateableZipFile, self).write(filename, 56 | arcname=arcname, compress_type=compress_type) 57 | 58 | def __enter__(self): 59 | # Allow updates 60 | self._allow_updates = True 61 | return self 62 | 63 | def __exit__(self, exc_type, exc_val, exc_tb): 64 | # call base to close zip file, organically 65 | try: 66 | super(UpdateableZipFile, self).__exit__(exc_type, exc_val, exc_tb) 67 | if len(self._replace) > 0: 68 | self._rebuild_zip() 69 | finally: 70 | # In case rebuild zip failed, 71 | # be sure to still release all the temp files 72 | self._close_all_temp_files() 73 | self._allow_updates = False 74 | 75 | def _close_all_temp_files(self): 76 | for temp_file in self._replace.values(): 77 | if hasattr(temp_file, 'close'): 78 | temp_file.close() 79 | 80 | def remove_file(self, path): 81 | self._replace[path] = self.DeleteMarker() 82 | 83 | def _rebuild_zip(self): 84 | tempdir = tempfile.mkdtemp() 85 | try: 86 | temp_zip_path = os.path.join(tempdir, 'new.zip') 87 | with ZipFile(self.filename, 'r') as zip_read: 88 | # Create new zip with assigned properties 89 | with ZipFile(temp_zip_path, 'w', compression=self.compression, 90 | allowZip64=self._allowZip64) as zip_write: 91 | for item in zip_read.infolist(): 92 | '''######################### LOADING HERE $$$$$$$$$$$$$$$$$$$$$$$''' 93 | # Check if the file should be replaced / or deleted 94 | replacement = self._replace.get(item.filename, None) 95 | # If marked for deletion, do not copy file to new zipfile 96 | if isinstance(replacement, self.DeleteMarker): 97 | del self._replace[item.filename] 98 | continue 99 | # If marked for replacement, copy temp_file, instead of old file 100 | elif replacement is not None: 101 | del self._replace[item.filename] 102 | # Write replacement to archive, 103 | # and then close it (deleting the temp file) 104 | replacement.seek(0) 105 | data = replacement.read() 106 | replacement.close() 107 | else: 108 | data = zip_read.read(item.filename) 109 | zip_write.writestr(item, data) 110 | # Override the archive with the updated one 111 | shutil.move(temp_zip_path, self.filename) 112 | finally: 113 | shutil.rmtree(tempdir) 114 | -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | GNU GENERAL PUBLIC LICENSE 2 | Version 3, 29 June 2007 3 | 4 | Copyright (C) 2007 Free Software Foundation, Inc. 5 | Everyone is permitted to copy and distribute verbatim copies 6 | of this license document, but changing it is not allowed. 7 | 8 | Preamble 9 | 10 | The GNU General Public License is a free, copyleft license for 11 | software and other kinds of works. 12 | 13 | The licenses for most software and other practical works are designed 14 | to take away your freedom to share and change the works. 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No Surrender of Others' Freedom. 541 | 542 | If conditions are imposed on you (whether by court order, agreement or 543 | otherwise) that contradict the conditions of this License, they do not 544 | excuse you from the conditions of this License. If you cannot convey a 545 | covered work so as to satisfy simultaneously your obligations under this 546 | License and any other pertinent obligations, then as a consequence you may 547 | not convey it at all. For example, if you agree to terms that obligate you 548 | to collect a royalty for further conveying from those to whom you convey 549 | the Program, the only way you could satisfy both those terms and this 550 | License would be to refrain entirely from conveying the Program. 551 | 552 | 13. Use with the GNU Affero General Public License. 553 | 554 | Notwithstanding any other provision of this License, you have 555 | permission to link or combine any covered work with a work licensed 556 | under version 3 of the GNU Affero General Public License into a single 557 | combined work, and to convey the resulting work. The terms of this 558 | License will continue to apply to the part which is the covered work, 559 | but the special requirements of the GNU Affero General Public License, 560 | section 13, concerning interaction through a network will apply to the 561 | combination as such. 562 | 563 | 14. Revised Versions of this License. 564 | 565 | The Free Software Foundation may publish revised and/or new versions of 566 | the GNU General Public License from time to time. Such new versions will 567 | be similar in spirit to the present version, but may differ in detail to 568 | address new problems or concerns. 569 | 570 | Each version is given a distinguishing version number. If the 571 | Program specifies that a certain numbered version of the GNU General 572 | Public License "or any later version" applies to it, you have the 573 | option of following the terms and conditions either of that numbered 574 | version or of any later version published by the Free Software 575 | Foundation. If the Program does not specify a version number of the 576 | GNU General Public License, you may choose any version ever published 577 | by the Free Software Foundation. 578 | 579 | If the Program specifies that a proxy can decide which future 580 | versions of the GNU General Public License can be used, that proxy's 581 | public statement of acceptance of a version permanently authorizes you 582 | to choose that version for the Program. 583 | 584 | Later license versions may give you additional or different 585 | permissions. However, no additional obligations are imposed on any 586 | author or copyright holder as a result of your choosing to follow a 587 | later version. 588 | 589 | 15. Disclaimer of Warranty. 590 | 591 | THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY 592 | APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT 593 | HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY 594 | OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, 595 | THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 596 | PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM 597 | IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF 598 | ALL NECESSARY SERVICING, REPAIR OR CORRECTION. 599 | 600 | 16. Limitation of Liability. 601 | 602 | IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING 603 | WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS 604 | THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY 605 | GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE 606 | USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF 607 | DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD 608 | PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS), 609 | EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF 610 | SUCH DAMAGES. 611 | 612 | 17. Interpretation of Sections 15 and 16. 613 | 614 | If the disclaimer of warranty and limitation of liability provided 615 | above cannot be given local legal effect according to their terms, 616 | reviewing courts shall apply local law that most closely approximates 617 | an absolute waiver of all civil liability in connection with the 618 | Program, unless a warranty or assumption of liability accompanies a 619 | copy of the Program in return for a fee. 620 | 621 | END OF TERMS AND CONDITIONS 622 | 623 | How to Apply These Terms to Your New Programs 624 | 625 | If you develop a new program, and you want it to be of the greatest 626 | possible use to the public, the best way to achieve this is to make it 627 | free software which everyone can redistribute and change under these terms. 628 | 629 | To do so, attach the following notices to the program. It is safest 630 | to attach them to the start of each source file to most effectively 631 | state the exclusion of warranty; and each file should have at least 632 | the "copyright" line and a pointer to where the full notice is found. 633 | 634 | 635 | Copyright (C) 636 | 637 | This program is free software: you can redistribute it and/or modify 638 | it under the terms of the GNU General Public License as published by 639 | the Free Software Foundation, either version 3 of the License, or 640 | (at your option) any later version. 641 | 642 | This program is distributed in the hope that it will be useful, 643 | but WITHOUT ANY WARRANTY; without even the implied warranty of 644 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 645 | GNU General Public License for more details. 646 | 647 | You should have received a copy of the GNU General Public License 648 | along with this program. If not, see . 649 | 650 | Also add information on how to contact you by electronic and paper mail. 651 | 652 | If the program does terminal interaction, make it output a short 653 | notice like this when it starts in an interactive mode: 654 | 655 | Copyright (C) 656 | This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'. 657 | This is free software, and you are welcome to redistribute it 658 | under certain conditions; type `show c' for details. 659 | 660 | The hypothetical commands `show w' and `show c' should show the appropriate 661 | parts of the General Public License. Of course, your program's commands 662 | might be different; for a GUI interface, you would use an "about box". 663 | 664 | You should also get your employer (if you work as a programmer) or school, 665 | if any, to sign a "copyright disclaimer" for the program, if necessary. 666 | For more information on this, and how to apply and follow the GNU GPL, see 667 | . 668 | 669 | The GNU General Public License does not permit incorporating your program 670 | into proprietary programs. If your program is a subroutine library, you 671 | may consider it more useful to permit linking proprietary applications with 672 | the library. If this is what you want to do, use the GNU Lesser General 673 | Public License instead of this License. But first, please read 674 | . 675 | --------------------------------------------------------------------------------