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sabnzbd/sabnzbd/newsunpack.py

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#!/usr/bin/python3 -OO
# Copyright 2007-2020 The SABnzbd-Team <team@sabnzbd.org>
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
"""
sabnzbd.newsunpack
"""
import os
import sys
import re
import subprocess
import logging
import time
import zlib
import shutil
import functools
import sabnzbd
from sabnzbd.encoding import platform_btou, correct_unknown_encoding, ubtou
import sabnzbd.utils.rarfile as rarfile
from sabnzbd.misc import (
format_time_string,
find_on_path,
int_conv,
get_all_passwords,
calc_age,
cmp,
run_command,
build_and_run_command,
)
from sabnzbd.filesystem import (
make_script_path,
real_path,
globber,
globber_full,
renamer,
clip_path,
long_path,
remove_file,
listdir_full,
setname_from_path,
get_ext,
get_filename,
)
from sabnzbd.sorting import SeriesSorter
import sabnzbd.cfg as cfg
from sabnzbd.constants import Status
# Regex globals
RAR_RE = re.compile(r"\.(?P<ext>part\d*\.rar|rar|r\d\d|s\d\d|t\d\d|u\d\d|v\d\d|\d\d\d?\d)$", re.I)
RAR_RE_V3 = re.compile(r"\.(?P<ext>part\d*)$", re.I)
LOADING_RE = re.compile(r'^Loading "(.+)"')
TARGET_RE = re.compile(r'^(?:File|Target): "(.+)" -')
EXTRACTFROM_RE = re.compile(r"^Extracting\sfrom\s(.+)")
EXTRACTED_RE = re.compile(r"^(Extracting|Creating|...)\s+(.*?)\s+OK\s*$")
SPLITFILE_RE = re.compile(r"\.(\d\d\d?\d$)", re.I)
ZIP_RE = re.compile(r"\.(zip$)", re.I)
SEVENZIP_RE = re.compile(r"\.7z$", re.I)
SEVENMULTI_RE = re.compile(r"\.7z\.\d+$", re.I)
TS_RE = re.compile(r"\.(\d+)\.(ts$)", re.I)
PAR2_COMMAND = None
MULTIPAR_COMMAND = None
RAR_COMMAND = None
NICE_COMMAND = None
ZIP_COMMAND = None
SEVEN_COMMAND = None
IONICE_COMMAND = None
RAR_PROBLEM = False
PAR2_MT = True
RAR_VERSION = 0
def find_programs(curdir):
""" Find external programs """
def check(path, program):
p = os.path.abspath(os.path.join(path, program))
if os.access(p, os.X_OK):
return p
else:
return None
if sabnzbd.DARWIN:
sabnzbd.newsunpack.PAR2_COMMAND = check(curdir, "osx/par2/par2-sl64")
sabnzbd.newsunpack.RAR_COMMAND = check(curdir, "osx/unrar/unrar")
sabnzbd.newsunpack.SEVEN_COMMAND = check(curdir, "osx/7zip/7za")
if sabnzbd.WIN32:
if sabnzbd.WIN64:
# 64 bit versions
sabnzbd.newsunpack.MULTIPAR_COMMAND = check(curdir, "win/multipar/par2j64.exe")
sabnzbd.newsunpack.RAR_COMMAND = check(curdir, "win/unrar/x64/UnRAR.exe")
else:
# 32 bit versions
sabnzbd.newsunpack.MULTIPAR_COMMAND = check(curdir, "win/multipar/par2j.exe")
sabnzbd.newsunpack.RAR_COMMAND = check(curdir, "win/unrar/UnRAR.exe")
sabnzbd.newsunpack.SEVEN_COMMAND = check(curdir, "win/7zip/7za.exe")
else:
if not sabnzbd.newsunpack.PAR2_COMMAND:
sabnzbd.newsunpack.PAR2_COMMAND = find_on_path("par2")
if not sabnzbd.newsunpack.RAR_COMMAND:
sabnzbd.newsunpack.RAR_COMMAND = find_on_path(
(
"unrar",
"rar",
"unrar3",
"rar3",
)
)
sabnzbd.newsunpack.NICE_COMMAND = find_on_path("nice")
sabnzbd.newsunpack.IONICE_COMMAND = find_on_path("ionice")
if not sabnzbd.newsunpack.ZIP_COMMAND:
sabnzbd.newsunpack.ZIP_COMMAND = find_on_path("unzip")
if not sabnzbd.newsunpack.SEVEN_COMMAND:
sabnzbd.newsunpack.SEVEN_COMMAND = find_on_path("7za")
if not sabnzbd.newsunpack.SEVEN_COMMAND:
sabnzbd.newsunpack.SEVEN_COMMAND = find_on_path("7z")
if not (sabnzbd.WIN32 or sabnzbd.DARWIN):
# Run check on rar version
version, original = unrar_check(sabnzbd.newsunpack.RAR_COMMAND)
sabnzbd.newsunpack.RAR_PROBLEM = not original or version < sabnzbd.constants.REC_RAR_VERSION
sabnzbd.newsunpack.RAR_VERSION = version
# Run check on par2-multicore
sabnzbd.newsunpack.PAR2_MT = par2_mt_check(sabnzbd.newsunpack.PAR2_COMMAND)
ENV_NZO_FIELDS = [
"bytes",
"bytes_downloaded",
"bytes_tried",
"cat",
"duplicate",
"encrypted",
"fail_msg",
"filename",
"final_name",
"group",
"nzo_id",
"oversized",
"password",
"pp",
"priority",
"repair",
"script",
"status",
"unpack",
"unwanted_ext",
"url",
]
def external_processing(extern_proc, nzo, complete_dir, nicename, status):
""" Run a user postproc script, return console output and exit value """
failure_url = nzo.nzo_info.get("failure", "")
# Items can be bool or null, causing POpen to fail
command = [
str(extern_proc),
str(complete_dir),
str(nzo.filename),
str(nicename),
"",
str(nzo.cat),
str(nzo.group),
str(status),
str(failure_url),
]
# Add path to original NZB
nzb_paths = globber_full(nzo.workpath, "*.gz")
# Fields not in the NZO directly
extra_env_fields = {
"failure_url": failure_url,
"complete_dir": complete_dir,
"pp_status": status,
"download_time": nzo.nzo_info.get("download_time", ""),
"avg_bps": int(nzo.avg_bps_total / nzo.avg_bps_freq) if nzo.avg_bps_freq else 0,
"age": calc_age(nzo.avg_date),
"orig_nzb_gz": clip_path(nzb_paths[0]) if nzb_paths else "",
}
try:
p = build_and_run_command(command, env=create_env(nzo, extra_env_fields))
# Follow the output, so we can abort it
proc = p.stdout
if p.stdin:
p.stdin.close()
lines = []
while 1:
line = platform_btou(proc.readline())
if not line:
break
line = line.strip()
lines.append(line)
# Show current line in history
nzo.set_action_line(T("Running script"), line)
# Check if we should still continue
if not nzo.pp_active:
p.kill()
lines.append(T("PostProcessing was aborted (%s)") % T("Script"))
# Print at least what we got
output = "\n".join(lines)
return output, 1
except:
logging.debug("Failed script %s, Traceback: ", extern_proc, exc_info=True)
return "Cannot run script %s\r\n" % extern_proc, -1
output = "\n".join(lines)
ret = p.wait()
return output, ret
def unpack_magic(nzo, workdir, workdir_complete, dele, one_folder, joinables, zips, rars, sevens, ts, depth=0):
""" Do a recursive unpack from all archives in 'workdir' to 'workdir_complete' """
if depth > 5:
logging.warning(T("Unpack nesting too deep [%s]"), nzo.final_name)
return False, []
depth += 1
if depth == 1:
# First time, ignore anything in workdir_complete
xjoinables, xzips, xrars, xsevens, xts = build_filelists(workdir)
else:
xjoinables, xzips, xrars, xsevens, xts = build_filelists(workdir, workdir_complete, check_both=dele)
force_rerun = False
newfiles = []
error = None
new_joins = new_ts = None
if cfg.enable_filejoin():
new_joins = [jn for jn in xjoinables if jn not in joinables]
if new_joins:
logging.info("Filejoin starting on %s", workdir)
error, newf = file_join(nzo, workdir, workdir_complete, dele, new_joins)
if newf:
newfiles.extend(newf)
logging.info("Filejoin finished on %s", workdir)
if cfg.enable_unrar():
new_rars = [rar for rar in xrars if rar not in rars]
if new_rars:
logging.info("Unrar starting on %s", workdir)
error, newf = rar_unpack(nzo, workdir, workdir_complete, dele, one_folder, new_rars)
if newf:
newfiles.extend(newf)
logging.info("Unrar finished on %s", workdir)
if cfg.enable_7zip():
new_sevens = [seven for seven in xsevens if seven not in sevens]
if new_sevens:
logging.info("7za starting on %s", workdir)
error, newf = unseven(nzo, workdir, workdir_complete, dele, one_folder, new_sevens)
if newf:
newfiles.extend(newf)
logging.info("7za finished on %s", workdir)
if cfg.enable_unzip():
new_zips = [zip for zip in xzips if zip not in zips]
if new_zips:
logging.info("Unzip starting on %s", workdir)
if SEVEN_COMMAND:
error, newf = unseven(nzo, workdir, workdir_complete, dele, one_folder, new_zips)
else:
error, newf = unzip(nzo, workdir, workdir_complete, dele, one_folder, new_zips)
if newf:
newfiles.extend(newf)
logging.info("Unzip finished on %s", workdir)
if cfg.enable_tsjoin():
new_ts = [_ts for _ts in xts if _ts not in ts]
if new_ts:
logging.info("TS Joining starting on %s", workdir)
error, newf = file_join(nzo, workdir, workdir_complete, dele, new_ts)
if newf:
newfiles.extend(newf)
logging.info("TS Joining finished on %s", workdir)
# Refresh history and set output
nzo.set_action_line()
# Only re-run if something was unpacked and it was success
rerun = error in (False, 0)
# During a Retry we might miss files in the complete folder
# that failed during recursive unpack in the first run
if nzo.reuse and depth == 1 and any(build_filelists(workdir=None, workdir_complete=workdir_complete)):
rerun = True
# We can't recursive unpack on long paths on Windows
# See: https://github.com/sabnzbd/sabnzbd/pull/771
if sabnzbd.WIN32 and len(workdir_complete) > 256:
rerun = False
# Double-check that we didn't miss any files in workdir
# But only if dele=True, otherwise of course there will be files left
if rerun and dele and depth == 1 and any(build_filelists(workdir)):
force_rerun = True
# Clear lists to force re-scan of files
xjoinables, xzips, xrars, xsevens, xts = ([], [], [], [], [])
if rerun and (cfg.enable_recursive() or new_ts or new_joins or force_rerun):
z, y = unpack_magic(
nzo, workdir, workdir_complete, dele, one_folder, xjoinables, xzips, xrars, xsevens, xts, depth
)
if z:
error = z
if y:
newfiles.extend(y)
return error, newfiles
##############################################################################
# Filejoin Functions
##############################################################################
def match_ts(file):
""" Return True if file is a joinable TS file """
match = TS_RE.search(file)
if not match:
return False, "", 0
num = int(match.group(1))
try:
set = file[: match.start()]
set += ".ts"
except:
set = ""
return match, set, num
def clean_up_joinables(names):
""" Remove joinable files and their .1 backups """
for name in names:
if os.path.exists(name):
try:
remove_file(name)
except:
pass
name1 = name + ".1"
if os.path.exists(name1):
try:
remove_file(name1)
except:
pass
def get_seq_number(name):
""" Return sequence number if name as an int """
head, tail = os.path.splitext(name)
if tail == ".ts":
match, set, num = match_ts(name)
else:
num = tail[1:]
if num.isdigit():
return int(num)
else:
return 0
def file_join(nzo, workdir, workdir_complete, delete, joinables):
"""Join and joinable files in 'workdir' to 'workdir_complete' and
when successful, delete originals
"""
newfiles = []
bufsize = 24 * 1024 * 1024
# Create matching sets from the list of files
joinable_sets = {}
joinable_set = None
for joinable in joinables:
head, tail = os.path.splitext(joinable)
if tail == ".ts":
head = match_ts(joinable)[1]
if head not in joinable_sets:
joinable_sets[head] = []
joinable_sets[head].append(joinable)
logging.debug("joinable_sets: %s", joinable_sets)
try:
# Handle each set
for joinable_set in joinable_sets:
current = joinable_sets[joinable_set]
joinable_sets[joinable_set].sort()
# If par2 already did the work, just remove the files
if os.path.exists(joinable_set):
logging.debug("file_join(): Skipping %s, (probably) joined by par2", joinable_set)
if delete:
clean_up_joinables(current)
# done, go to next set
continue
# Only join when there is more than one file
size = len(current)
if size < 2:
continue
# Prepare joined file
filename = joinable_set
if workdir_complete:
filename = filename.replace(workdir, workdir_complete)
logging.debug("file_join(): Assembling %s", filename)
# Join the segments
with open(filename, "ab") as joined_file:
n = get_seq_number(current[0])
seq_error = n > 1
for joinable in current:
if get_seq_number(joinable) != n:
seq_error = True
perc = (100.0 / size) * n
logging.debug("Processing %s", joinable)
nzo.set_action_line(T("Joining"), "%.0f%%" % perc)
with open(joinable, "rb") as f:
shutil.copyfileobj(f, joined_file, bufsize)
if delete:
remove_file(joinable)
n += 1
# Remove any remaining .1 files
clean_up_joinables(current)
# Finish up
newfiles.append(filename)
setname = setname_from_path(joinable_set)
if seq_error:
msg = T("Incomplete sequence of joinable files")
nzo.fail_msg = T("File join of %s failed") % setname
nzo.set_unpack_info("Filejoin", T('[%s] Error "%s" while joining files') % (setname, msg))
logging.error(T('Error "%s" while running file_join on %s'), msg, nzo.final_name)
return True, []
else:
msg = T("[%s] Joined %s files") % (joinable_set, size)
nzo.set_unpack_info("Filejoin", msg, setname)
except:
msg = sys.exc_info()[1]
nzo.fail_msg = T("File join of %s failed") % msg
nzo.set_unpack_info(
"Filejoin", T('[%s] Error "%s" while joining files') % (setname_from_path(joinable_set), msg)
)
logging.error(T('Error "%s" while running file_join on %s'), msg, nzo.final_name)
return True, []
return False, newfiles
##############################################################################
# (Un)Rar Functions
##############################################################################
def rar_unpack(nzo, workdir, workdir_complete, delete, one_folder, rars):
"""Unpack multiple sets 'rars' of RAR files from 'workdir' to 'workdir_complete.
When 'delete' is set, originals will be deleted.
When 'one_folder' is set, all files will be in a single folder
"""
newfiles = extracted_files = []
rar_sets = {}
for rar in rars:
rar_set = setname_from_path(rar)
if RAR_RE_V3.search(rar_set):
# Remove the ".partXX" part
rar_set = os.path.splitext(rar_set)[0]
if rar_set not in rar_sets:
rar_sets[rar_set] = []
rar_sets[rar_set].append(rar)
logging.debug("Rar_sets: %s", rar_sets)
for rar_set in rar_sets:
# Run the RAR extractor
rar_sets[rar_set].sort(key=functools.cmp_to_key(rar_sort))
rarpath = rar_sets[rar_set][0]
if workdir_complete and rarpath.startswith(workdir):
extraction_path = workdir_complete
else:
extraction_path = os.path.split(rarpath)[0]
# Is the direct-unpacker still running? We wait for it
if nzo.direct_unpacker:
wait_count = 0
last_stats = nzo.direct_unpacker.get_formatted_stats()
while nzo.direct_unpacker.is_alive():
logging.debug("DirectUnpacker still alive for %s: %s", nzo.final_name, last_stats)
# Bump the file-lock in case it's stuck
with nzo.direct_unpacker.next_file_lock:
nzo.direct_unpacker.next_file_lock.notify()
time.sleep(2)
# Did something change? Might be stuck
if last_stats == nzo.direct_unpacker.get_formatted_stats():
wait_count += 1
if wait_count > 60:
# We abort after 2 minutes of no changes
nzo.direct_unpacker.abort()
else:
wait_count = 0
last_stats = nzo.direct_unpacker.get_formatted_stats()
# Did we already direct-unpack it? Not when recursive-unpacking
if nzo.direct_unpacker and rar_set in nzo.direct_unpacker.success_sets:
logging.info("Set %s completed by DirectUnpack", rar_set)
fail = False
success = True
rars, newfiles = nzo.direct_unpacker.success_sets.pop(rar_set)
else:
logging.info("Extracting rarfile %s (belonging to %s) to %s", rarpath, rar_set, extraction_path)
try:
fail, newfiles, rars = rar_extract(
rarpath, len(rar_sets[rar_set]), one_folder, nzo, rar_set, extraction_path
)
# Was it aborted?
if not nzo.pp_active:
fail = True
break
success = not fail
except:
success = False
fail = True
msg = sys.exc_info()[1]
nzo.fail_msg = T("Unpacking failed, %s") % msg
setname = nzo.final_name
nzo.set_unpack_info("Unpack", T('[%s] Error "%s" while unpacking RAR files') % (setname, msg))
logging.error(T('Error "%s" while running rar_unpack on %s'), msg, setname)
logging.debug("Traceback: ", exc_info=True)
if success:
logging.debug("rar_unpack(): Rars: %s", rars)
logging.debug("rar_unpack(): Newfiles: %s", newfiles)
extracted_files.extend(newfiles)
# Do not fail if this was a recursive unpack
if fail and rarpath.startswith(workdir_complete):
# Do not delete the files, leave it to user!
logging.info("Ignoring failure to do recursive unpack of %s", rarpath)
fail = 0
success = True
newfiles = []
# Do not fail if this was maybe just some duplicate fileset
# Multipar and par2tbb will detect and log them, par2cmdline will not
if fail and rar_set.endswith((".1", ".2")):
# Just in case, we leave the raw files
logging.info("Ignoring failure of unpack for possible duplicate file %s", rarpath)
fail = 0
success = True
newfiles = []
# Delete the old files if we have to
if success and delete and newfiles:
for rar in rars:
try:
remove_file(rar)
except OSError:
if os.path.exists(rar):
logging.warning(T("Deleting %s failed!"), rar)
brokenrar = "%s.1" % rar
if os.path.exists(brokenrar):
logging.info("Deleting %s", brokenrar)
try:
remove_file(brokenrar)
except OSError:
if os.path.exists(brokenrar):
logging.warning(T("Deleting %s failed!"), brokenrar)
return fail, extracted_files
def rar_extract(rarfile_path, numrars, one_folder, nzo, setname, extraction_path):
"""Unpack single rar set 'rarfile' to 'extraction_path',
with password tries
Return fail==0(ok)/fail==1(error)/fail==2(wrong password), new_files, rars
"""
fail = 0
new_files = None
rars = []
passwords = get_all_passwords(nzo)
for password in passwords:
if password:
logging.debug('Trying unrar with password "%s"', password)
msg = T('Trying unrar with password "%s"') % password
nzo.fail_msg = msg
nzo.set_unpack_info("Unpack", msg, setname)
fail, new_files, rars = rar_extract_core(
rarfile_path, numrars, one_folder, nzo, setname, extraction_path, password
)
if fail != 2:
break
if fail == 2:
logging.error("%s (%s)", T("Unpacking failed, archive requires a password"), get_filename(rarfile_path))
return fail, new_files, rars
def rar_extract_core(rarfile_path, numrars, one_folder, nzo, setname, extraction_path, password):
"""Unpack single rar set 'rarfile_path' to 'extraction_path'
Return fail==0(ok)/fail==1(error)/fail==2(wrong password)/fail==3(crc-error), new_files, rars
"""
start = time.time()
logging.debug("rar_extract(): Extractionpath: %s", extraction_path)
if password:
password_command = "-p%s" % password
else:
password_command = "-p-"
############################################################################
if one_folder or cfg.flat_unpack():
action = "e"
else:
action = "x"
if cfg.overwrite_files():
overwrite = "-o+" # Enable overwrite
rename = "-o+" # Dummy
else:
overwrite = "-o-" # Disable overwrite
rename = "-or" # Auto renaming
if sabnzbd.WIN32:
# For Unrar to support long-path, we need to cricumvent Python's list2cmdline
# See: https://github.com/sabnzbd/sabnzbd/issues/1043
command = [
"%s" % RAR_COMMAND,
action,
"-idp",
overwrite,
rename,
"-ai",
password_command,
"%s" % clip_path(rarfile_path),
"%s\\" % long_path(extraction_path),
]
elif RAR_PROBLEM:
# Use only oldest options (specifically no "-or")
command = [
"%s" % RAR_COMMAND,
action,
"-idp",
overwrite,
password_command,
"%s" % rarfile_path,
"%s/" % extraction_path,
]
else:
# Don't use "-ai" (not needed for non-Windows)
command = [
"%s" % RAR_COMMAND,
action,
"-idp",
overwrite,
rename,
password_command,
"%s" % rarfile_path,
"%s/" % extraction_path,
]
if cfg.ignore_unrar_dates():
command.insert(3, "-tsm-")
# Get list of all the volumes part of this set
logging.debug("Analyzing rar file ... %s found", rarfile.is_rarfile(rarfile_path))
p = build_and_run_command(command, flatten_command=True)
proc = p.stdout
if p.stdin:
p.stdin.close()
nzo.set_action_line(T("Unpacking"), "00/%02d" % numrars)
# Loop over the output from rar!
curr = 0
extracted = []
rarfiles = []
fail = 0
inrecovery = False
lines = []
while 1:
line = platform_btou(proc.readline())
if not line:
break
# Check if we should still continue
if not nzo.pp_active:
p.kill()
msg = T("PostProcessing was aborted (%s)") % T("Unpack")
nzo.fail_msg = msg
nzo.set_unpack_info("Unpack", msg, setname)
nzo.status = Status.FAILED
return fail, (), ()
line = line.strip()
lines.append(line)
if line.startswith("Extracting from"):
filename = re.search(EXTRACTFROM_RE, line).group(1)
if filename not in rarfiles:
rarfiles.append(filename)
curr += 1
nzo.set_action_line(T("Unpacking"), "%02d/%02d" % (curr, numrars))
elif line.find("recovery volumes found") > -1:
inrecovery = True # and thus start ignoring "Cannot find volume" for a while
logging.debug("unrar recovery start: %s" % line)
elif line.startswith("Reconstruct"):
# end of reconstruction: 'Reconstructing... 100%' or 'Reconstructing... ' (both success), or 'Reconstruction impossible'
inrecovery = False
logging.debug("unrar recovery result: %s" % line)
elif line.startswith("Cannot find volume") and not inrecovery:
filename = os.path.basename(line[19:])
msg = T("Unpacking failed, unable to find %s") % filename
nzo.fail_msg = msg
nzo.set_unpack_info("Unpack", msg, setname)
logging.warning(T('ERROR: unable to find "%s"'), filename)
fail = 1
elif line.endswith("- CRC failed"):
msg = T("Unpacking failed, CRC error")
nzo.fail_msg = msg
nzo.set_unpack_info("Unpack", msg, setname)
logging.warning(T('ERROR: CRC failed in "%s"'), setname)
fail = 2 # Older unrar versions report a wrong password as a CRC error
elif line.startswith("File too large"):
msg = T("Unpacking failed, file too large for filesystem (FAT?)")
nzo.fail_msg = msg
nzo.set_unpack_info("Unpack", msg, setname)
# ERROR: File too large for file system (bigfile-5000MB)
logging.error(T("ERROR: File too large for filesystem (%s)"), setname)
fail = 1
elif line.startswith("Write error"):
msg = T("Unpacking failed, write error or disk is full?")
nzo.fail_msg = msg
nzo.set_unpack_info("Unpack", msg, setname)
logging.error(T("ERROR: write error (%s)"), line[11:])
fail = 1
elif line.startswith("Cannot create"):
line2 = platform_btou(proc.readline())
if "must not exceed 260" in line2:
msg = "%s: %s" % (T("Unpacking failed, path is too long"), line[13:])
nzo.fail_msg = msg
logging.error(T("ERROR: path too long (%s)"), line[13:])
else:
msg = "%s: %s" % (T("Unpacking failed, write error or disk is full?"), line[13:])
nzo.fail_msg = msg
logging.error(T("ERROR: write error (%s)"), line[13:])
nzo.set_unpack_info("Unpack", msg, setname)
fail = 1
# Kill the process (can stay in endless loop on Windows Server)
p.kill()
elif line.startswith("ERROR: "):
msg = T("ERROR: %s") % line[7:]
nzo.fail_msg = msg
logging.warning(msg)
nzo.set_unpack_info("Unpack", msg, setname)
fail = 1
elif (
"The specified password is incorrect" in line
or "Incorrect password" in line
or ("ncrypted file" in line and (("CRC failed" in line) or ("Checksum error" in line)))
):
# unrar 3.x: "Encrypted file: CRC failed in oLKQfrcNVivzdzSG22a2xo7t001.part1.rar (password incorrect ?)"
# unrar 4.x: "CRC failed in the encrypted file oLKQfrcNVivzdzSG22a2xo7t001.part1.rar. Corrupt file or wrong password."
# unrar 5.x: "Checksum error in the encrypted file oLKQfrcNVivzdzSG22a2xo7t001.part1.rar. Corrupt file or wrong password."
# unrar 5.01: "The specified password is incorrect."
# unrar 5.80: "Incorrect password for oLKQfrcNVivzdzSG22a2xo7t001.part1.rar"
msg = T("Unpacking failed, archive requires a password")
nzo.fail_msg = msg
nzo.set_unpack_info("Unpack", msg, setname)
fail = 2
elif "is not RAR archive" in line:
# Unrecognizable RAR file
msg = T("Unusable RAR file")
nzo.fail_msg = msg
nzo.set_unpack_info("Unpack", msg, setname)
fail = 3
elif "checksum error" in line or "Unexpected end of archive" in line:
# Corrupt archive or passworded, we can't know
# packed data checksum error in volume FILE
msg = T("Corrupt RAR file")
nzo.fail_msg = msg
nzo.set_unpack_info("Unpack", msg, setname)
fail = 3
else:
m = re.search(EXTRACTED_RE, line)
if m:
# In case of flat-unpack, UnRar still prints the whole path (?!)
unpacked_file = m.group(2)
if cfg.flat_unpack():
unpacked_file = os.path.basename(unpacked_file)
extracted.append(real_path(extraction_path, unpacked_file))
if fail:
if proc:
proc.close()
p.wait()
logging.debug("UNRAR output %s", "\n".join(lines))
return fail, (), ()
if proc:
proc.close()
p.wait()
# Which files did we use to extract this?
rarfiles = rar_volumelist(rarfile_path, password, rarfiles)
logging.debug("UNRAR output %s", "\n".join(lines))
nzo.fail_msg = ""
msg = T("Unpacked %s files/folders in %s") % (str(len(extracted)), format_time_string(time.time() - start))
nzo.set_unpack_info("Unpack", msg, setname)
logging.info("%s", msg)
return 0, extracted, rarfiles
##############################################################################
# (Un)Zip Functions
##############################################################################
def unzip(nzo, workdir, workdir_complete, delete, one_folder, zips):
"""Unpack multiple sets 'zips' of ZIP files from 'workdir' to 'workdir_complete.
When 'delete' is ste, originals will be deleted.
"""
try:
i = 0
unzip_failed = False
tms = time.time()
# For file-bookkeeping
orig_dir_content = listdir_full(workdir_complete)
for _zip in zips:
logging.info("Starting extract on zipfile: %s ", _zip)
nzo.set_action_line(T("Unpacking"), "%s" % setname_from_path(_zip))
if workdir_complete and _zip.startswith(workdir):
extraction_path = workdir_complete
else:
extraction_path = os.path.split(_zip)[0]
if ZIP_Extract(_zip, extraction_path, one_folder):
unzip_failed = True
else:
i += 1
msg = T("%s files in %s") % (str(i), format_time_string(time.time() - tms))
nzo.set_unpack_info("Unpack", msg)
# What's new?
new_files = list(set(orig_dir_content + listdir_full(workdir_complete)))
# Delete the old files if we have to
if delete and not unzip_failed:
i = 0
for _zip in zips:
try:
remove_file(_zip)
i += 1
except OSError:
logging.warning(T("Deleting %s failed!"), _zip)
brokenzip = "%s.1" % _zip
if os.path.exists(brokenzip):
try:
remove_file(brokenzip)
i += 1
except OSError:
logging.warning(T("Deleting %s failed!"), brokenzip)
return unzip_failed, new_files
except:
msg = sys.exc_info()[1]
nzo.fail_msg = T("Unpacking failed, %s") % msg
logging.error(T('Error "%s" while running unzip() on %s'), msg, nzo.final_name)
return True, []
def ZIP_Extract(zipfile, extraction_path, one_folder):
""" Unzip single zip set 'zipfile' to 'extraction_path' """
command = ["%s" % ZIP_COMMAND, "-o", "-Pnone", "%s" % clip_path(zipfile), "-d%s" % extraction_path]
if one_folder or cfg.flat_unpack():
command.insert(3, "-j") # Unpack without folders
p = build_and_run_command(command)
output = platform_btou(p.stdout.read())
ret = p.wait()
logging.debug("unzip output: \n%s", output)
return ret
##############################################################################
# 7Zip Functions
##############################################################################
def unseven(nzo, workdir, workdir_complete, delete, one_folder, sevens):
"""Unpack multiple sets '7z' of 7Zip files from 'workdir' to 'workdir_complete.
When 'delete' is set, originals will be deleted.
"""
i = 0
unseven_failed = False
new_files = []
tms = time.time()
# Find multi-volume sets, because 7zip will not provide actual set members
sets = {}
for seven in sevens:
name, ext = os.path.splitext(seven)
ext = ext.strip(".")
if not ext.isdigit():
name = seven
ext = None
if name not in sets:
sets[name] = []
if ext:
sets[name].append(ext)
# Unpack each set
for seven in sets:
extensions = sets[seven]
logging.info("Starting extract on 7zip set/file: %s ", seven)
nzo.set_action_line(T("Unpacking"), "%s" % setname_from_path(seven))
if workdir_complete and seven.startswith(workdir):
extraction_path = workdir_complete
else:
extraction_path = os.path.split(seven)[0]
res, new_files_set, msg = seven_extract(nzo, seven, extensions, extraction_path, one_folder, delete)
if res:
unseven_failed = True
nzo.set_unpack_info("Unpack", msg, setname_from_path(seven))
else:
i += 1
new_files.extend(new_files_set)
if not unseven_failed:
msg = T("%s files in %s") % (str(i), format_time_string(time.time() - tms))
nzo.set_unpack_info("Unpack", msg)
return unseven_failed, new_files
def seven_extract(nzo, sevenset, extensions, extraction_path, one_folder, delete):
"""Unpack single set 'sevenset' to 'extraction_path', with password tries
Return fail==0(ok)/fail==1(error)/fail==2(wrong password), new_files, sevens
"""
# Before we start, make sure the 7z binary SEVEN_COMMAND is defined
if not SEVEN_COMMAND:
msg = T('No 7za binary found, cannot unpack "%s"') % os.path.basename(sevenset)
logging.error(msg)
return 1, [], msg
fail = 0
passwords = get_all_passwords(nzo)
for password in passwords:
if password:
msg = T('Trying 7zip with password "%s"') % password
logging.debug(msg)
nzo.fail_msg = msg
nzo.set_unpack_info("Unpack", msg, setname_from_path(sevenset))
fail, new_files, msg = seven_extract_core(sevenset, extensions, extraction_path, one_folder, delete, password)
if fail != 2:
break
nzo.fail_msg = ""
if fail == 2:
msg = "%s (%s)" % (T("Unpacking failed, archive requires a password"), os.path.basename(sevenset))
if fail > 0:
nzo.fail_msg = msg
nzo.status = Status.FAILED
logging.error(msg)
return fail, new_files, msg
def seven_extract_core(sevenset, extensions, extraction_path, one_folder, delete, password):
"""Unpack single 7Z set 'sevenset' to 'extraction_path'
Return fail==0(ok)/fail==1(error)/fail==2(wrong password), new_files, message
"""
if one_folder:
method = "e" # Unpack without folders
else:
method = "x" # Unpack with folders
if sabnzbd.WIN32 or sabnzbd.DARWIN:
case = "-ssc-" # Case insensitive
else:
case = "-ssc" # Case sensitive
if cfg.overwrite_files():
overwrite = "-aoa"
else:
overwrite = "-aou"
if password:
password = "-p%s" % password
else:
password = "-p"
if len(extensions) > 0:
name = "%s.001" % sevenset
parm = "-tsplit"
else:
name = sevenset
parm = "-tzip" if sevenset.lower().endswith(".zip") else "-t7z"
if not os.path.exists(name):
return 1, [], T('7ZIP set "%s" is incomplete, cannot unpack') % setname_from_path(sevenset)
# For file-bookkeeping
orig_dir_content = listdir_full(extraction_path)
command = [SEVEN_COMMAND, method, "-y", overwrite, parm, case, password, "-o%s" % extraction_path, name]
p = build_and_run_command(command)
output = platform_btou(p.stdout.read())
logging.debug("7za output: %s", output)
ret = p.wait()
# Return-code for CRC and Password is the same
if ret == 2 and "ERROR: CRC Failed" in output:
# We can output a more general error
ret = 1
msg = T('ERROR: CRC failed in "%s"') % setname_from_path(sevenset)
else:
# Default message
msg = T("Could not unpack %s") % setname_from_path(sevenset)
# What's new?
new_files = list(set(orig_dir_content + listdir_full(extraction_path)))
if ret == 0 and delete:
if extensions:
for ext in extensions:
path = "%s.%s" % (sevenset, ext)
try:
remove_file(path)
except:
logging.warning(T("Deleting %s failed!"), path)
else:
try:
remove_file(sevenset)
except:
logging.warning(T("Deleting %s failed!"), sevenset)
# Always return an error message, even when return code is 0
return ret, new_files, msg
##############################################################################
# PAR2 Functions
##############################################################################
def par2_repair(parfile_nzf, nzo, workdir, setname, single):
""" Try to repair a set, return readd or correctness """
# Check if file exists, otherwise see if another is done
parfile_path = os.path.join(workdir, parfile_nzf.filename)
if not os.path.exists(parfile_path) and nzo.extrapars[setname]:
for new_par in nzo.extrapars[setname]:
test_parfile = os.path.join(workdir, new_par.filename)
if os.path.exists(test_parfile):
parfile_nzf = new_par
break
else:
# No file was found, we assume this set already finished
return False, True
parfile = os.path.join(workdir, parfile_nzf.filename)
old_dir_content = os.listdir(workdir)
used_joinables = ()
joinables = ()
used_for_repair = ()
result = readd = False
# Need to copy now, gets pop-ed during repair
setpars = nzo.extrapars[setname][:]
# Start QuickCheck
nzo.status = Status.QUICK_CHECK
nzo.set_action_line(T("Repair"), T("Quick Checking"))
qc_result = quick_check_set(setname, nzo)
if qc_result:
logging.info("Quick-check for %s is OK, skipping repair", setname)
nzo.set_unpack_info("Repair", T("[%s] Quick Check OK") % setname)
result = True
if not result and cfg.enable_all_par():
# Download all par2 files that haven't been downloaded yet
readd = False
for extrapar in nzo.extrapars[setname][:]:
# Make sure we only get new par2 files
if extrapar not in nzo.finished_files and extrapar not in nzo.files:
nzo.add_parfile(extrapar)
readd = True
if readd:
return readd, result
if not result:
nzo.status = Status.REPAIRING
result = False
readd = False
try:
nzo.set_action_line(T("Repair"), T("Starting Repair"))
logging.info('Scanning "%s"', parfile)
joinables, zips, rars, sevens, ts = build_filelists(workdir, check_rar=False)
# Multipar on Windows, par2 on the other platforms
if sabnzbd.WIN32:
finished, readd, datafiles, used_joinables, used_for_repair = MultiPar_Verify(
parfile, nzo, setname, joinables, single=single
)
else:
finished, readd, datafiles, used_joinables, used_for_repair = PAR_Verify(
parfile, nzo, setname, joinables, single=single
)
if finished:
result = True
logging.info("Par verify finished ok on %s!", parfile)
# Remove this set so we don't try to check it again
nzo.remove_parset(parfile_nzf.setname)
else:
logging.info("Par verify failed on %s!", parfile)
if not readd:
# Failed to repair -> remove this set
nzo.remove_parset(parfile_nzf.setname)
return readd, False
except:
msg = sys.exc_info()[1]
nzo.fail_msg = T("Repairing failed, %s") % msg
logging.error(T("Error %s while running par2_repair on set %s"), msg, setname)
logging.info("Traceback: ", exc_info=True)
return readd, result
try:
if cfg.enable_par_cleanup():
deletables = []
new_dir_content = os.listdir(workdir)
# Remove extra files created during repair and par2 base files
for path in new_dir_content:
if os.path.splitext(path)[1] == ".1" and path not in old_dir_content:
deletables.append(os.path.join(workdir, path))
deletables.append(os.path.join(workdir, setname + ".par2"))
deletables.append(os.path.join(workdir, setname + ".PAR2"))
deletables.append(parfile)
# Add output of par2-repair to remove
deletables.extend(used_joinables)
deletables.extend([os.path.join(workdir, f) for f in used_for_repair])
# Delete pars of the set
deletables.extend([os.path.join(workdir, nzf.filename) for nzf in setpars])
for filepath in deletables:
if filepath in joinables:
joinables.remove(filepath)
if os.path.exists(filepath):
try:
remove_file(filepath)
except OSError:
logging.warning(T("Deleting %s failed!"), filepath)
except:
msg = sys.exc_info()[1]
nzo.fail_msg = T("Repairing failed, %s") % msg
logging.error(T('Error "%s" while running par2_repair on set %s'), msg, setname, exc_info=True)
return readd, result
_RE_BLOCK_FOUND = re.compile(r'File: "([^"]+)" - found \d+ of \d+ data blocks from "([^"]+)"')
_RE_IS_MATCH_FOR = re.compile(r'File: "([^"]+)" - is a match for "([^"]+)"')
_RE_LOADING_PAR2 = re.compile(r'Loading "([^"]+)"\.')
_RE_LOADED_PAR2 = re.compile(r"Loaded (\d+) new packets")
def PAR_Verify(parfile, nzo, setname, joinables, single=False):
""" Run par2 on par-set """
used_joinables = []
used_for_repair = []
# set the current nzo status to "Verifying...". Used in History
nzo.status = Status.VERIFYING
start = time.time()
options = cfg.par_option().strip()
command = [str(PAR2_COMMAND), "r", options, parfile]
# Append the wildcard for this set
parfolder = os.path.split(parfile)[0]
if single or len(globber(parfolder, setname + "*")) < 2:
# Support bizarre naming conventions
wildcard = "*"
else:
# Normal case, everything is named after set
wildcard = setname + "*"
if sabnzbd.WIN32 or sabnzbd.DARWIN:
command.append(os.path.join(parfolder, wildcard))
else:
# For Unix systems, remove folders, due to bug in some par2cmdline versions
flist = [item for item in globber_full(parfolder, wildcard) if os.path.isfile(item)]
command.extend(flist)
# We need to check for the bad par2cmdline that skips blocks
# Or the one that complains about basepath
# Only if we're not doing multicore
if not sabnzbd.WIN32 and not sabnzbd.DARWIN:
par2text = run_command([command[0], "-h"])
if "No data skipping" in par2text:
logging.info("Detected par2cmdline version that skips blocks, adding -N parameter")
command.insert(2, "-N")
if "Set the basepath" in par2text:
logging.info("Detected par2cmdline version that needs basepath, adding -B<path> parameter")
command.insert(2, "-B")
command.insert(3, parfolder)
# par2multicore wants to see \\.\ paths on Windows
# See: https://github.com/sabnzbd/sabnzbd/pull/771
if sabnzbd.WIN32:
command = [clip_path(x) if x.startswith("\\\\?\\") else x for x in command]
# Run the external command
p = build_and_run_command(command)
proc = p.stdout
if p.stdin:
p.stdin.close()
# Set up our variables
lines = []
datafiles = []
renames = {}
reconstructed = []
linebuf = ""
finished = 0
readd = False
verifynum = 1
verifytotal = 0
verified = 0
in_verify_repaired = False
# Loop over the output, whee
while 1:
char = platform_btou(proc.read(1))
if not char:
break
# Line not complete yet
if char not in ("\n", "\r"):
linebuf += char
continue
line = linebuf.strip()
linebuf = ""
# Check if we should still continue
if not nzo.pp_active:
p.kill()
msg = T("PostProcessing was aborted (%s)") % T("Repair")
nzo.fail_msg = msg
nzo.set_unpack_info("Repair", msg, setname)
nzo.status = Status.FAILED
readd = False
break
# Skip empty lines
if line == "":
continue
if "Repairing:" not in line:
lines.append(line)
if line.startswith(("Invalid option specified", "Invalid thread option", "Cannot specify recovery file count")):
msg = T("[%s] PAR2 received incorrect options, check your Config->Switches settings") % setname
nzo.set_unpack_info("Repair", msg)
nzo.status = Status.FAILED
logging.error(msg)
elif line.startswith("All files are correct"):
msg = T("[%s] Verified in %s, all files correct") % (setname, format_time_string(time.time() - start))
nzo.set_unpack_info("Repair", msg)
logging.info("Verified in %s, all files correct", format_time_string(time.time() - start))
finished = 1
elif line.startswith("Repair is required"):
msg = T("[%s] Verified in %s, repair is required") % (setname, format_time_string(time.time() - start))
nzo.set_unpack_info("Repair", msg)
logging.info("Verified in %s, repair is required", format_time_string(time.time() - start))
start = time.time()
verified = 1
# Reset to use them again for verification of repair
verifytotal = 0
verifynum = 0
elif line.startswith("Main packet not found") or "The recovery file does not exist" in line:
# Initialparfile probably didn't decode properly or bad user parameters
# We will try to get another par2 file, but 99% of time it's user parameters
msg = T("Invalid par2 files or invalid PAR2 parameters, cannot verify or repair")
logging.info(msg)
logging.info("Extra pars = %s", nzo.extrapars[setname])
# Look for the smallest par2file
block_table = {}
for nzf in nzo.extrapars[setname]:
if not nzf.completed:
block_table[nzf.blocks] = nzf
if block_table:
nzf = block_table[min(block_table.keys())]
logging.info("Found new par2file %s", nzf.filename)
# Move from extrapar list to files to be downloaded
# and remove it from the extrapars list
nzo.add_parfile(nzf)
readd = True
else:
nzo.fail_msg = msg
nzo.set_unpack_info("Repair", msg, setname)
nzo.status = Status.FAILED
elif line.startswith("You need"):
# We need more blocks, but are they available?
chunks = line.split()
needed_blocks = int(chunks[2])
# Check if we have enough blocks
added_blocks = nzo.get_extra_blocks(setname, needed_blocks)
if added_blocks:
msg = T("Fetching %s blocks...") % str(added_blocks)
nzo.set_action_line(T("Fetching"), msg)
readd = True
else:
# Failed
msg = T("Repair failed, not enough repair blocks (%s short)") % str(needed_blocks)
nzo.fail_msg = msg
nzo.set_unpack_info("Repair", msg, setname)
nzo.status = Status.FAILED
elif line.startswith("Repair is possible"):
start = time.time()
nzo.set_action_line(T("Repairing"), "%2d%%" % 0)
elif line.startswith("Repairing:"):
chunks = line.split()
per = float(chunks[-1][:-1])
nzo.set_action_line(T("Repairing"), "%2d%%" % per)
nzo.status = Status.REPAIRING
elif line.startswith("Repair complete"):
msg = T("[%s] Repaired in %s") % (setname, format_time_string(time.time() - start))
nzo.set_unpack_info("Repair", msg)
logging.info("Repaired in %s", format_time_string(time.time() - start))
finished = 1
elif verified and line.endswith(("are missing.", "exist but are damaged.")):
# Files that will later be verified after repair
chunks = line.split()
verifytotal += int(chunks[0])
elif line.startswith("Verifying repaired files"):
in_verify_repaired = True
nzo.set_action_line(T("Verifying repair"), "%02d/%02d" % (verifynum, verifytotal))
elif in_verify_repaired and line.startswith("Target"):
verifynum += 1
if verifynum <= verifytotal:
nzo.set_action_line(T("Verifying repair"), "%02d/%02d" % (verifynum, verifytotal))
elif line.startswith("File:") and line.find("data blocks from") > 0:
m = _RE_BLOCK_FOUND.search(line)
if m:
workdir = os.path.split(parfile)[0]
old_name = m.group(1)
new_name = m.group(2)
if joinables:
# Find out if a joinable file has been used for joining
for jn in joinables:
if line.find(os.path.split(jn)[1]) > 0:
used_joinables.append(jn)
break
# Special case of joined RAR files, the "of" and "from" must both be RAR files
# This prevents the joined rars files from being seen as an extra rar-set
if ".rar" in old_name.lower() and ".rar" in new_name.lower():
used_joinables.append(os.path.join(workdir, old_name))
else:
logging.debug('PAR2 will reconstruct "%s" from "%s"', new_name, old_name)
reconstructed.append(os.path.join(workdir, old_name))
elif "Could not write" in line and "at offset 0:" in line:
# If there are joinables, this error will only happen in case of 100% complete files
# We can just skip the retry, because par2cmdline will fail in those cases
# becauses it refuses to scan the ".001" file
if joinables:
finished = 1
used_joinables = []
elif " cannot be renamed to " in line:
msg = line.strip()
nzo.fail_msg = msg
nzo.set_unpack_info("Repair", msg, setname)
nzo.status = Status.FAILED
elif "There is not enough space on the disk" in line:
# Oops, disk is full!
msg = T("Repairing failed, %s") % T("Disk full")
nzo.fail_msg = msg
nzo.set_unpack_info("Repair", msg, setname)
nzo.status = Status.FAILED
# File: "oldname.rar" - is a match for "newname.rar".
elif "is a match for" in line:
m = _RE_IS_MATCH_FOR.search(line)
if m:
old_name = m.group(1)
new_name = m.group(2)
logging.debug('PAR2 will rename "%s" to "%s"', old_name, new_name)
renames[new_name] = old_name
# Show progress
if verifytotal == 0 or verifynum < verifytotal:
verifynum += 1
nzo.set_action_line(T("Verifying"), "%02d/%02d" % (verifynum, verifytotal))
elif "Scanning extra files" in line:
# Obfuscated post most likely, so reset counter to show progress
verifynum = 1
elif "No details available for recoverable file" in line:
msg = line.strip()
nzo.fail_msg = msg
nzo.set_unpack_info("Repair", msg, setname)
nzo.status = Status.FAILED
elif line.startswith("Repair Failed."):
# Unknown repair problem
msg = T("Repairing failed, %s") % line
nzo.fail_msg = msg
nzo.set_unpack_info("Repair", msg, setname)
nzo.status = Status.FAILED
finished = 0
elif not verified:
if line.startswith("Verifying source files"):
nzo.set_action_line(T("Verifying"), "01/%02d" % verifytotal)
nzo.status = Status.VERIFYING
elif line.startswith("Scanning:"):
pass
# Target files
m = TARGET_RE.match(line)
if m:
nzo.status = Status.VERIFYING
verifynum += 1
if verifytotal == 0 or verifynum < verifytotal:
nzo.set_action_line(T("Verifying"), "%02d/%02d" % (verifynum, verifytotal))
else:
nzo.set_action_line(T("Checking extra files"), "%02d" % verifynum)
# Remove redundant extra files that are just duplicates of original ones
if "duplicate data blocks" in line:
used_for_repair.append(m.group(1))
else:
datafiles.append(m.group(1))
continue
# Verify done
m = re.match(r"There are (\d+) recoverable files", line)
if m:
verifytotal = int(m.group(1))
p.wait()
# Also log what is shown to user in history
if nzo.fail_msg:
logging.info(nzo.fail_msg)
logging.debug("PAR2 output was\n%s", "\n".join(lines))
# If successful, add renamed files to the collection
if finished and renames:
nzo.renamed_file(renames)
# If successful and files were reconstructed, remove incomplete original files
if finished and reconstructed:
# Use 'used_joinables' as a vehicle to get rid of the files
used_joinables.extend(reconstructed)
return finished, readd, datafiles, used_joinables, used_for_repair
_RE_FILENAME = re.compile(r'"([^"]+)"')
def MultiPar_Verify(parfile, nzo, setname, joinables, single=False):
""" Run par2 on par-set """
parfolder = os.path.split(parfile)[0]
used_joinables = []
used_for_repair = []
# set the current nzo status to "Verifying...". Used in History
nzo.status = Status.VERIFYING
start = time.time()
# Caching of verification implemented by adding:
# But not really required due to prospective-par2
command = [str(MULTIPAR_COMMAND), "r", "-vs2", "-vd%s" % parfolder, parfile]
# Check if there are maybe par2cmdline/par2tbb commands supplied
if "-t" in cfg.par_option() or "-p" in cfg.par_option():
logging.info("Removing old par2cmdline/par2tbb options for MultiPar")
cfg.par_option.set("")
# Only add user-options if supplied
options = cfg.par_option().strip()
if options:
# We wrongly instructed users to use /x parameter style instead of -x
options = options.replace("/", "-", 1)
command.insert(2, options)
# Append the wildcard for this set
if single or len(globber(parfolder, setname + "*")) < 2:
# Support bizarre naming conventions
wildcard = "*"
else:
# Normal case, everything is named after set
wildcard = setname + "*"
command.append(os.path.join(parfolder, wildcard))
# Run MultiPar
p = build_and_run_command(command)
proc = p.stdout
if p.stdin:
p.stdin.close()
# Set up our variables
lines = []
datafiles = []
renames = {}
reconstructed = []
linebuf = ""
finished = 0
readd = False
verifynum = 0
verifytotal = 0
in_check = False
in_verify = False
in_repair = False
in_verify_repaired = False
misnamed_files = False
old_name = None
# Loop over the output, whee
while 1:
char = platform_btou(proc.read(1))
if not char:
break
# Line not complete yet
if char not in ("\n", "\r"):
linebuf += char
continue
line = linebuf.strip()
linebuf = ""
# Check if we should still continue
if not nzo.pp_active:
p.kill()
msg = T("PostProcessing was aborted (%s)") % T("Repair")
nzo.fail_msg = msg
nzo.set_unpack_info("Repair", msg, setname)
nzo.status = Status.FAILED
readd = False
break
# Skip empty lines
if line == "":
continue
# Save it all
lines.append(line)
# ----------------- Startup
if line.startswith("invalid option"):
# Option error
msg = T("[%s] PAR2 received incorrect options, check your Config->Switches settings") % setname
nzo.set_unpack_info("Repair", msg)
nzo.status = Status.FAILED
logging.error(msg)
elif line.startswith("valid file is not found"):
# Initialparfile probably didn't decode properly, or bad user parameters
# We will try to get another par2 file, but 99% of time it's user parameters
msg = T("Invalid par2 files or invalid PAR2 parameters, cannot verify or repair")
logging.info(msg)
logging.info("Extra pars = %s", nzo.extrapars[setname])
# Look for the smallest par2file
block_table = {}
for nzf in nzo.extrapars[setname]:
if not nzf.completed:
block_table[nzf.blocks] = nzf
if block_table:
nzf = block_table[min(block_table.keys())]
logging.info("Found new par2file %s", nzf.filename)
# Move from extrapar list to files to be downloaded
# and remove it from the extrapars list
nzo.add_parfile(nzf)
readd = True
else:
nzo.fail_msg = msg
nzo.set_unpack_info("Repair", msg, setname)
nzo.status = Status.FAILED
elif line.startswith("There is not enough space on the disk"):
msg = T("Repairing failed, %s") % T("Disk full")
nzo.fail_msg = msg
nzo.set_unpack_info("Repair", msg, setname)
nzo.status = Status.FAILED
# ----------------- Start check/verify stage
elif line.startswith("Recovery Set ID"):
# Remove files were MultiPar stores verification result when repaired succesfull
recovery_id = line.split()[-1]
used_for_repair.append("2_%s.bin" % recovery_id)
used_for_repair.append("2_%s.ini" % recovery_id)
elif line.startswith("Input File total count"):
# How many files will it try to find?
verifytotal = int(line.split()[-1])
# ----------------- Misnamed-detection stage
# Misnamed files
elif line.startswith("Searching misnamed file"):
# We are in the misnamed files block
misnamed_files = True
verifynum = 0
elif misnamed_files and "Found" in line:
# First it reports the current filename
m = _RE_FILENAME.search(line)
if m:
verifynum += 1
nzo.set_action_line(T("Checking"), "%02d/%02d" % (verifynum, verifytotal))
old_name = m.group(1)
elif misnamed_files and "Misnamed" in line:
# Then it finds the actual
m = _RE_FILENAME.search(line)
if m and old_name:
new_name = m.group(1)
logging.debug('MultiPar will rename "%s" to "%s"', old_name, new_name)
renames[new_name] = old_name
# New name is also part of data!
datafiles.append(new_name)
reconstructed.append(old_name)
# ----------------- Checking stage
# Checking input files
elif line.startswith("Complete file count"):
in_check = False
verifynum = 0
old_name = None
elif line.startswith("Verifying Input File"):
in_check = True
nzo.status = Status.VERIFYING
elif in_check:
m = _RE_FILENAME.search(line)
if m:
# Only increase counter if it was really the detection line
if line.startswith("= ") or "%" not in line:
verifynum += 1
nzo.set_action_line(T("Checking"), "%02d/%02d" % (verifynum, verifytotal))
old_name = m.group(1)
# ----------------- Verify stage
# Which files need extra verification?
elif line.startswith("Damaged file count"):
verifytotal = int(line.split()[-1])
elif line.startswith("Missing file count"):
verifytotal += int(line.split()[-1])
# Actual verification
elif line.startswith("Input File Slice found"):
# End of verification AND end of misnamed file search
in_verify = False
misnamed_files = False
old_name = None
elif line.startswith("Finding available slice"):
# The actual scanning of the files
in_verify = True
nzo.set_action_line(T("Verifying"), T("Checking"))
elif in_verify:
m = _RE_FILENAME.search(line)
if m:
# It prints the filename couple of times, so we save it to check
# 'datafiles' will not contain all data-files in par-set, only the
# ones that got scanned, but it's ouput is never used!
nzo.status = Status.VERIFYING
if line.split()[1] in ("Damaged", "Found"):
verifynum += 1
datafiles.append(m.group(1))
# Set old_name in case it was misnamed and found (not when we are joining)
old_name = None
if line.split()[1] == "Found" and not joinables:
old_name = m.group(1)
# Sometimes we don't know the total (filejoin)
if verifytotal <= 1:
nzo.set_action_line(T("Verifying"), "%02d" % verifynum)
else:
nzo.set_action_line(T("Verifying"), "%02d/%02d" % (verifynum, verifytotal))
elif old_name and old_name != m.group(1):
# Hey we found another misnamed one!
new_name = m.group(1)
logging.debug('MultiPar will rename "%s" to "%s"', old_name, new_name)
renames[new_name] = old_name
# Put it back with it's new name!
datafiles.pop()
datafiles.append(new_name)
# Need to remove the old file after repair (Multipar keeps it)
used_for_repair.append(old_name)
# Need to reset it to avoid collision
old_name = None
else:
# It's scanning extra files that don't belong to the set
# For damaged files it reports the filename twice, so only then start
verifynum += 1
if verifynum / 2 > verifytotal:
nzo.set_action_line(T("Checking extra files"), "%02d" % verifynum)
if joinables:
# Find out if a joinable file has been used for joining
for jn in joinables:
if line.find(os.path.split(jn)[1]) > 0:
used_joinables.append(jn)
datafiles.append(m.group(1))
break
elif line.startswith("Need"):
# We need more blocks, but are they available?
chunks = line.split()
needed_blocks = int(chunks[1])
# Check if we have enough blocks
added_blocks = nzo.get_extra_blocks(setname, needed_blocks)
if added_blocks:
msg = T("Fetching %s blocks...") % str(added_blocks)
nzo.set_action_line(T("Fetching"), msg)
readd = True
else:
# Failed
msg = T("Repair failed, not enough repair blocks (%s short)") % str(needed_blocks)
nzo.fail_msg = msg
nzo.set_unpack_info("Repair", msg, setname)
nzo.status = Status.FAILED
# MultiPar can say 'PAR File(s) Incomplete' also when it needs more blocks
# But the Need-more-blocks message is always last, so force failure
finished = 0
# Result of verification
elif line.startswith("All Files Complete") or line.endswith("PAR File(s) Incomplete"):
# Completed without damage!
# 'PAR File(s) Incomplete' is reported for success
# but when there are very similar filenames in the folder
msg = T("[%s] Verified in %s, all files correct") % (setname, format_time_string(time.time() - start))
nzo.set_unpack_info("Repair", msg)
logging.info("Verified in %s, all files correct", format_time_string(time.time() - start))
finished = 1
elif line.startswith(("Ready to repair", "Ready to rejoin")):
# Ready to repair!
# Or we are re-joining a split file when there's no damage but takes time
msg = T("[%s] Verified in %s, repair is required") % (setname, format_time_string(time.time() - start))
nzo.set_unpack_info("Repair", msg)
logging.info("Verified in %s, repair is required", format_time_string(time.time() - start))
start = time.time()
# Set message for user in case of joining
if line.startswith("Ready to rejoin"):
nzo.set_action_line(T("Joining"), "%2d" % len(used_joinables))
else:
# If we are repairing a joinable set, it won't actually
# do the joining. So we can't remove those files!
used_joinables = []
# ----------------- Repair stage
elif "Recovering slice" in line:
# Before this it will calculate matrix, here is where it starts
start = time.time()
in_repair = True
nzo.set_action_line(T("Repairing"), "%2d%%" % 0)
elif in_repair and line.startswith("Verifying repair"):
in_repair = False
in_verify_repaired = True
# How many will be checked?
verifytotal = int(line.split()[-1])
verifynum = 0
elif in_repair:
try:
# Line with percentage of repair (nothing else)
per = float(line[:-1])
nzo.set_action_line(T("Repairing"), "%2d%%" % per)
nzo.status = Status.REPAIRING
except:
# Checksum error
if "checksum" in line:
# Failed due to checksum error of multipar
msg = T("Repairing failed, %s") % line
nzo.fail_msg = msg
nzo.set_unpack_info("Repair", msg, setname)
nzo.status = Status.FAILED
else:
# Not sure, log error
logging.info("Traceback: ", exc_info=True)
elif line.startswith("Repaired successfully"):
msg = T("[%s] Repaired in %s") % (setname, format_time_string(time.time() - start))
nzo.set_unpack_info("Repair", msg)
logging.info("Repaired in %s", format_time_string(time.time() - start))
finished = 1
elif in_verify_repaired and line.startswith("Repaired :"):
# Track verification of repaired files (can sometimes take a while)
verifynum += 1
nzo.set_action_line(T("Verifying repair"), "%02d/%02d" % (verifynum, verifytotal))
elif line.startswith("Failed to repair"):
# Unknown repair problem
msg = T("Repairing failed, %s") % line
nzo.fail_msg = msg
nzo.set_unpack_info("Repair", msg, setname)
nzo.status = Status.FAILED
finished = 0
p.wait()
# Also log what is shown to user in history
if nzo.fail_msg:
logging.info(nzo.fail_msg)
logging.debug("MultiPar output was\n%s", "\n".join(lines))
# Add renamed files to the collection
# MultiPar always(!!) renames automatically whatever it can in the 'Searching misnamed file:'-section
# Even if the repair did not complete fully it will rename those!
# But the ones in 'Finding available slices'-section will only be renamed after succesfull repair
if renames:
# If succes, we also remove the possibly previously renamed ones
if finished:
reconstructed.extend(list(renames.values()))
# Adding to the collection
nzo.renamed_file(renames)
# Remove renamed original files
workdir = os.path.split(parfile)[0]
used_joinables.extend([os.path.join(workdir, name) for name in reconstructed])
return finished, readd, datafiles, used_joinables, used_for_repair
def create_env(nzo=None, extra_env_fields={}):
"""Modify the environment for pp-scripts with extra information
macOS: Return copy of environment without PYTHONPATH and PYTHONHOME
other: return None
"""
env = os.environ.copy()
# Are we adding things?
if nzo:
# Add basic info
for field in ENV_NZO_FIELDS:
try:
field_value = getattr(nzo, field)
# Special filters for Python types
if field_value is None:
env["SAB_" + field.upper()] = ""
elif isinstance(field_value, bool):
env["SAB_" + field.upper()] = str(field_value * 1)
else:
env["SAB_" + field.upper()] = str(field_value)
except:
# Catch key errors
pass
# Always supply basic info
extra_env_fields.update(
{
"program_dir": sabnzbd.DIR_PROG,
"par2_command": sabnzbd.newsunpack.PAR2_COMMAND,
"multipar_command": sabnzbd.newsunpack.MULTIPAR_COMMAND,
"rar_command": sabnzbd.newsunpack.RAR_COMMAND,
"zip_command": sabnzbd.newsunpack.ZIP_COMMAND,
"7zip_command": sabnzbd.newsunpack.SEVEN_COMMAND,
"version": sabnzbd.__version__,
}
)
# Add extra fields
for field in extra_env_fields:
try:
if extra_env_fields[field] is not None:
env["SAB_" + field.upper()] = str(extra_env_fields[field])
else:
env["SAB_" + field.upper()] = ""
except:
# Catch key errors
pass
if sabnzbd.DARWIN:
if "PYTHONPATH" in env:
del env["PYTHONPATH"]
if "PYTHONHOME" in env:
del env["PYTHONHOME"]
elif not nzo:
# No modification
return None
return env
def rar_volumelist(rarfile_path, password, known_volumes):
"""Extract volumes that are part of this rarset
and merge them with existing list, removing duplicates
"""
# UnRar is required to read some RAR files
# RarFile can fail in special cases
try:
rarfile.UNRAR_TOOL = RAR_COMMAND
zf = rarfile.RarFile(rarfile_path)
# setpassword can fail due to bugs in RarFile
if password:
try:
zf.setpassword(password)
except:
pass
zf_volumes = zf.volumelist()
except:
zf_volumes = []
# Remove duplicates
known_volumes_base = [os.path.basename(vol) for vol in known_volumes]
for zf_volume in zf_volumes:
if os.path.basename(zf_volume) not in known_volumes_base:
# Long-path notation just to be sure
known_volumes.append(long_path(zf_volume))
return known_volumes
# Sort the various RAR filename formats properly :\
def rar_sort(a, b):
""" Define sort method for rar file names """
aext = a.split(".")[-1]
bext = b.split(".")[-1]
if aext == "rar" and bext == "rar":
return cmp(a, b)
elif aext == "rar":
return -1
elif bext == "rar":
return 1
else:
return cmp(a, b)
def build_filelists(workdir, workdir_complete=None, check_both=False, check_rar=True):
"""Build filelists, if workdir_complete has files, ignore workdir.
Optionally scan both directories.
Optionally test content to establish RAR-ness
"""
sevens, joinables, zips, rars, ts, filelist = ([], [], [], [], [], [])
if workdir_complete:
filelist.extend(listdir_full(workdir_complete))
if workdir and (not filelist or check_both):
filelist.extend(listdir_full(workdir, recursive=False))
for file in filelist:
# Extra check for rar (takes CPU/disk)
file_is_rar = False
if check_rar:
file_is_rar = rarfile.is_rarfile(file)
# Run through all the checks
if SEVENZIP_RE.search(file) or SEVENMULTI_RE.search(file):
# 7zip
sevens.append(file)
elif SPLITFILE_RE.search(file) and not file_is_rar:
# Joinables, optional with RAR check
joinables.append(file)
elif ZIP_RE.search(file):
# ZIP files
zips.append(file)
elif RAR_RE.search(file):
# RAR files
rars.append(file)
elif TS_RE.search(file):
# TS split files
ts.append(file)
logging.debug("build_filelists(): joinables: %s", joinables)
logging.debug("build_filelists(): zips: %s", zips)
logging.debug("build_filelists(): rars: %s", rars)
logging.debug("build_filelists(): 7zips: %s", sevens)
logging.debug("build_filelists(): ts: %s", ts)
return joinables, zips, rars, sevens, ts
def quick_check_set(set, nzo):
""" Check all on-the-fly md5sums of a set """
md5pack = nzo.md5packs.get(set)
if md5pack is None:
return False
# We use bitwise assigment (&=) so False always wins in case of failure
# This way the renames always get saved!
result = True
nzf_list = nzo.finished_files
renames = {}
# Files to ignore
ignore_ext = cfg.quick_check_ext_ignore()
for file in md5pack:
found = False
file_to_ignore = get_ext(file).replace(".", "") in ignore_ext
for nzf in nzf_list:
# Do a simple filename based check
if file == nzf.filename:
found = True
if (nzf.md5sum is not None) and nzf.md5sum == md5pack[file]:
logging.debug("Quick-check of file %s OK", file)
result &= True
elif file_to_ignore:
# We don't care about these files
logging.debug("Quick-check ignoring file %s", file)
result &= True
else:
logging.info("Quick-check of file %s failed!", file)
result = False
break
# Now lets do obfuscation check
if nzf.md5sum == md5pack[file]:
try:
logging.debug("Quick-check will rename %s to %s", nzf.filename, file)
renamer(os.path.join(nzo.downpath, nzf.filename), os.path.join(nzo.downpath, file))
renames[file] = nzf.filename
nzf.filename = file
result &= True
found = True
break
except IOError:
# Renamed failed for some reason, probably already done
break
if not found:
if file_to_ignore:
# We don't care about these files
logging.debug("Quick-check ignoring missing file %s", file)
continue
logging.info("Cannot Quick-check missing file %s!", file)
result = False
# Save renames
if renames:
nzo.renamed_file(renames)
return result
def unrar_check(rar):
"""Return version number of unrar, where "5.01" returns 501
Also return whether an original version is found
(version, original)
"""
version = 0
original = ""
if rar:
try:
version = run_command([rar])
except:
return version, original
original = "Alexander Roshal" in version
m = re.search(r"RAR\s(\d+)\.(\d+)", version)
if m:
version = int(m.group(1)) * 100 + int(m.group(2))
else:
version = 0
return version, original
def par2_mt_check(par2_path):
""" Detect if we have multicore par2 variants """
try:
par2_version = run_command([par2_path, "-h"])
# Look for a threads option
if "-t<" in par2_version:
return True
except:
pass
return False
def is_sfv_file(myfile):
""" Checks if given file is a SFV file, and returns result as boolean """
# based on https://stackoverflow.com/a/7392391/5235502
textchars = bytearray({7, 8, 9, 10, 12, 13, 27} | set(range(0x20, 0x100)) - {0x7F})
is_ascii_string = lambda input_bytes: not bool(input_bytes.translate(None, textchars))
# first check if it's plain text (ASCII or Unicode)
try:
with open(myfile, "rb") as f:
# get first 10000 bytes to check
myblock = f.read(10000)
if is_ascii_string(myblock):
# ASCII, so store lines for further inspection
try:
lines = ubtou(myblock).split("\n")
except UnicodeDecodeError:
return False
else:
# non-ASCII, so not SFV
return False
except:
# the with-open() went wrong, so not an existing file, so certainly not a SFV file
return False
sfv_info_line_counter = 0
for line in lines:
line = line.strip()
if re.search(r"^[^;].*\ +[A-Fa-f0-9]{8}$", line):
# valid, useful SFV line: some text, then one or more space, and a 8-digit hex number
sfv_info_line_counter += 1
if sfv_info_line_counter >= 10:
# with 10 valid, useful lines we're confident enough
# (note: if we find less lines (even just 1 line), with no negatives, it is OK. See below)
break
elif not line or line.startswith(";"):
# comment line or just spaces, so continue to next line
continue
else:
# not a valid SFV line, so not a SFV file:
return False
# if we get here, no negatives were found, and at least 1 valid line is OK
return sfv_info_line_counter >= 1
def sfv_check(sfvs, nzo, workdir):
""" Verify files using SFV files """
# Update status
nzo.status = Status.VERIFYING
nzo.set_action_line(T("Trying SFV verification"), "...")
# We use bitwise assigment (&=) so False always wins in case of failure
# This way the renames always get saved!
result = True
nzf_list = nzo.finished_files
renames = {}
# Files to ignore
ignore_ext = cfg.quick_check_ext_ignore()
# We need the crc32 of all files
calculated_crc32 = {}
verifytotal = len(nzo.finished_files)
verifynum = 0
for nzf in nzf_list:
verifynum += 1
nzo.set_action_line(T("Verifying"), "%02d/%02d" % (verifynum, verifytotal))
calculated_crc32[nzf.filename] = crc_calculate(os.path.join(workdir, nzf.filename))
sfv_parse_results = {}
nzo.set_action_line(T("Trying SFV verification"), "...")
for sfv in sfvs:
setname = setname_from_path(sfv)
nzo.set_unpack_info("Repair", T("Trying SFV verification"), setname)
# Parse the sfv and add to the already found results
# Duplicates will be replaced
sfv_parse_results.update(parse_sfv(sfv))
for file in sfv_parse_results:
found = False
file_to_ignore = get_ext(file).replace(".", "") in ignore_ext
for nzf in nzf_list:
# Do a simple filename based check
if file == nzf.filename:
found = True
if nzf.filename in calculated_crc32 and calculated_crc32[nzf.filename] == sfv_parse_results[file]:
logging.debug("SFV-check of file %s OK", file)
result &= True
elif file_to_ignore:
# We don't care about these files
logging.debug("SFV-check ignoring file %s", file)
result &= True
else:
logging.info("SFV-check of file %s failed!", file)
result = False
break
# Now lets do obfuscation check
if nzf.filename in calculated_crc32 and calculated_crc32[nzf.filename] == sfv_parse_results[file]:
try:
logging.debug("SFV-check will rename %s to %s", nzf.filename, file)
renamer(os.path.join(nzo.downpath, nzf.filename), os.path.join(nzo.downpath, file))
renames[file] = nzf.filename
nzf.filename = file
result &= True
found = True
break
except IOError:
# Renamed failed for some reason, probably already done
break
if not found:
if file_to_ignore:
# We don't care about these files
logging.debug("SVF-check ignoring missing file %s", file)
continue
logging.info("Cannot SFV-check missing file %s!", file)
result = False
# Save renames
if renames:
nzo.renamed_file(renames)
return result
def parse_sfv(sfv_filename):
""" Parse SFV file and return dictonary of crc32's and filenames """
results = {}
with open(sfv_filename, mode="rb") as sfv_list:
for sfv_item in sfv_list:
sfv_item = sfv_item.strip()
# Ignore comment-lines
if sfv_item.startswith(b";"):
continue
# Parse out the filename and crc32
filename, expected_crc32 = sfv_item.strip().rsplit(maxsplit=1)
# We don't know what encoding is used when it was created
results[correct_unknown_encoding(filename)] = expected_crc32.lower()
return results
def crc_calculate(path):
""" Calculate crc32 of the given file """
crc = 0
with open(path, "rb") as fp:
while 1:
data = fp.read(4096)
if not data:
break
crc = zlib.crc32(data, crc)
return b"%08x" % (crc & 0xFFFFFFFF)
def analyse_show(name):
""" Do a quick SeasonSort check and return basic facts """
job = SeriesSorter(None, name, None, None)
job.match(force=True)
if job.is_match():
job.get_values()
info = job.show_info
show_name = info.get("show_name", "").replace(".", " ").replace("_", " ")
show_name = show_name.replace(" ", " ")
return show_name, info.get("season_num", ""), info.get("episode_num", ""), info.get("ep_name", "")
def pre_queue(nzo, pp, cat):
"""Run pre-queue script (if any) and process results.
pp and cat are supplied seperate since they can change.
"""
def fix(p):
# If added via API, some items can still be "None" (as a string)
if not p or str(p).lower() == "none":
return ""
return str(p)
values = [1, nzo.final_name_with_password, pp, cat, nzo.script, nzo.priority, None]
script_path = make_script_path(cfg.pre_script())
if script_path:
# Basic command-line parameters
command = [
script_path,
nzo.final_name_with_password,
pp,
cat,
nzo.script,
nzo.priority,
str(nzo.bytes),
" ".join(nzo.groups),
]
command.extend(analyse_show(nzo.final_name_with_password))
command = [fix(arg) for arg in command]
# Fields not in the NZO directly
extra_env_fields = {
"groups": " ".join(nzo.groups),
"show_name": command[8],
"show_season": command[9],
"show_episode": command[10],
"show_episode_name": command[11],
}
try:
p = build_and_run_command(command, env=create_env(nzo, extra_env_fields))
except:
logging.debug("Failed script %s, Traceback: ", script_path, exc_info=True)
return values
output = platform_btou(p.stdout.read())
ret = p.wait()
logging.info("Pre-queue script returns %s and output=\n%s", ret, output)
if ret == 0:
n = 0
for line in output.split("\n"):
line = line.strip("\r\n '\"")
if n < len(values) and line:
values[n] = line
n += 1
accept = int_conv(values[0])
if accept < 1:
logging.info("Pre-Q refuses %s", nzo.final_name)
elif accept == 2:
logging.info("Pre-Q accepts&fails %s", nzo.final_name)
else:
logging.info("Pre-Q accepts %s", nzo.final_name)
return values
def list2cmdline(lst):
""" convert list to a cmd.exe-compatible command string """
nlst = []
for arg in lst:
if not arg:
nlst.append('""')
else:
nlst.append('"%s"' % arg)
return " ".join(nlst)
def is_sevenfile(path):
""" Return True if path has proper extension and 7Zip is installed """
return SEVEN_COMMAND and os.path.splitext(path)[1].lower() == ".7z"
class SevenZip:
""" Minimal emulation of ZipFile class for 7Zip """
def __init__(self, path):
self.path = path
def namelist(self):
""" Return list of names in 7Zip """
names = []
# Future extension: use '-sccUTF-8' to get names in UTF8 encoding
command = [SEVEN_COMMAND, "l", "-p", "-y", "-slt", self.path]
output = run_command(command)
re_path = re.compile("^Path = (.+)")
for line in output.split("\n"):
m = re_path.search(line)
if m:
names.append(m.group(1).strip("\r"))
if names:
# Remove name of archive itself
del names[0]
return names
def read(self, name):
""" Read named file from 7Zip and return data """
command = [SEVEN_COMMAND, "e", "-p", "-y", "-so", self.path, name]
# Ignore diagnostic output, otherwise it will be appended to content
p = build_and_run_command(command, stderr=subprocess.DEVNULL)
output = platform_btou(p.stdout.read())
p.wait()
return output
def close(self):
""" Close file """
pass