New submission from Jozef Cernak <jozefcer...@gmail.com>:
Hi, in the short program, that works well for password of 4 character, when I change password length I got this error (parameter MAXD) Traceback (most recent call last): File "p33.py", line 54, in <module> zf.extractall( pwd=password.encode('cp850','replace')) File "/usr/lib/python3.5/zipfile.py", line 1347, in extractall self.extract(zipinfo, path, pwd) File "/usr/lib/python3.5/zipfile.py", line 1335, in extract return self._extract_member(member, path, pwd) File "/usr/lib/python3.5/zipfile.py", line 1399, in _extract_member shutil.copyfileobj(source, target) File "/usr/lib/python3.5/shutil.py", line 73, in copyfileobj buf = fsrc.read(length) File "/usr/lib/python3.5/zipfile.py", line 844, in read data = self._read1(n) File "/usr/lib/python3.5/zipfile.py", line 934, in _read1 self._update_crc(data) File "/usr/lib/python3.5/zipfile.py", line 862, in _update_crc raise BadZipFile("Bad CRC-32 for file %r" % self.name) zipfile.BadZipFile: Bad CRC-32 for file '11_02_2019.pdf' program: import string, zipfile, zlib from zipfile import ZipFile zf= ZipFile('11_02_2019.pdf.zip') MAXD=6 upper_case=string.ascii_uppercase uc=list(upper_case) n=len(uc) print (n) pos=[] for k in range(0,MAXD): pos.append(0) print (pos) for let in range(0,n): print (let, uc[let]) let=0 koniec=0; k3=0 p=0 while koniec != MAXD : k=0 password='' for k2 in range(0,MAXD): password=password+uc[pos[k2]] print (password) try: with zipfile.ZipFile('11_02_2019.pdf.zip') as zf: zf.extractall( pwd=password.encode('cp850','replace')) print ("Password found:" + password) exit(0) except RuntimeError: pass except zlib.error: pass #print "ppppppppppppppppppppppppp",p, paswd pos[0]=pos[0]+1 for k2 in range(0,MAXD-1): if pos[k2]>=n: pos[k2]=0 pos[k2+1]=pos[k2+1]+1 koniec=0 for k2 in range(0,MAXD): if pos[k2] >= n-1: koniec=koniec+1 Similar behaviuor I observed in older version of python (2.7) and correspondig library. The zip archive is procted by simple password 'ABCD', the file is not big less tha 1MB. Best regards Jozef ---------- components: Library (Lib) messages: 339722 nosy: Jozef Cernak priority: normal severity: normal status: open title: zipfile zipfile.BadZipFile: Bad CRC-32 for file '11_02_2019.pdf' type: crash versions: Python 3.5 _______________________________________ Python tracker <rep...@bugs.python.org> <https://bugs.python.org/issue36573> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com