copyparty/copyparty/__main__.py
2021-06-30 01:51:57 +02:00

424 lines
17 KiB
Python

#!/usr/bin/env python
# coding: utf-8
from __future__ import print_function, unicode_literals
"""copyparty: http file sharing hub (py2/py3)"""
__author__ = "ed <copyparty@ocv.me>"
__copyright__ = 2019
__license__ = "MIT"
__url__ = "https://github.com/9001/copyparty/"
import re
import os
import sys
import time
import shutil
import filecmp
import locale
import argparse
import threading
import traceback
from textwrap import dedent
from .__init__ import E, WINDOWS, VT100, PY2
from .__version__ import S_VERSION, S_BUILD_DT, CODENAME
from .svchub import SvcHub
from .util import py_desc, align_tab, IMPLICATIONS, alltrace
HAVE_SSL = True
try:
import ssl
except:
HAVE_SSL = False
class RiceFormatter(argparse.HelpFormatter):
def _get_help_string(self, action):
"""
same as ArgumentDefaultsHelpFormatter(HelpFormatter)
except the help += [...] line now has colors
"""
fmt = "\033[36m (default: \033[35m%(default)s\033[36m)\033[0m"
if not VT100:
fmt = " (default: %(default)s)"
help = action.help
if "%(default)" not in action.help:
if action.default is not argparse.SUPPRESS:
defaulting_nargs = [argparse.OPTIONAL, argparse.ZERO_OR_MORE]
if action.option_strings or action.nargs in defaulting_nargs:
help += fmt
return help
def _fill_text(self, text, width, indent):
"""same as RawDescriptionHelpFormatter(HelpFormatter)"""
return "".join(indent + line + "\n" for line in text.splitlines())
class Dodge11874(RiceFormatter):
def __init__(self, *args, **kwargs):
kwargs["width"] = 9003
super(Dodge11874, self).__init__(*args, **kwargs)
def warn(msg):
print("\033[1mwarning:\033[0;33m {}\033[0m\n".format(msg))
def ensure_locale():
for x in [
"en_US.UTF-8",
"English_United States.UTF8",
"English_United States.1252",
]:
try:
locale.setlocale(locale.LC_ALL, x)
print("Locale:", x)
break
except:
continue
def ensure_cert():
"""
the default cert (and the entire TLS support) is only here to enable the
crypto.subtle javascript API, which is necessary due to the webkit guys
being massive memers (https://www.chromium.org/blink/webcrypto)
i feel awful about this and so should they
"""
cert_insec = os.path.join(E.mod, "res/insecure.pem")
cert_cfg = os.path.join(E.cfg, "cert.pem")
if not os.path.exists(cert_cfg):
shutil.copy2(cert_insec, cert_cfg)
try:
if filecmp.cmp(cert_cfg, cert_insec):
print(
"\033[33m using default TLS certificate; https will be insecure."
+ "\033[36m\n certificate location: {}\033[0m\n".format(cert_cfg)
)
except:
pass
# speaking of the default cert,
# printf 'NO\n.\n.\n.\n.\ncopyparty-insecure\n.\n' | faketime '2000-01-01 00:00:00' openssl req -x509 -sha256 -newkey rsa:2048 -keyout insecure.pem -out insecure.pem -days $((($(printf %d 0x7fffffff)-$(date +%s --date=2000-01-01T00:00:00Z))/(60*60*24))) -nodes && ls -al insecure.pem && openssl x509 -in insecure.pem -text -noout
def configure_ssl_ver(al):
def terse_sslver(txt):
txt = txt.lower()
for c in ["_", "v", "."]:
txt = txt.replace(c, "")
return txt.replace("tls10", "tls1")
# oh man i love openssl
# check this out
# hold my beer
ptn = re.compile(r"^OP_NO_(TLS|SSL)v")
sslver = terse_sslver(al.ssl_ver).split(",")
flags = [k for k in ssl.__dict__ if ptn.match(k)]
# SSLv2 SSLv3 TLSv1 TLSv1_1 TLSv1_2 TLSv1_3
if "help" in sslver:
avail = [terse_sslver(x[6:]) for x in flags]
avail = " ".join(sorted(avail) + ["all"])
print("\navailable ssl/tls versions:\n " + avail)
sys.exit(0)
al.ssl_flags_en = 0
al.ssl_flags_de = 0
for flag in sorted(flags):
ver = terse_sslver(flag[6:])
num = getattr(ssl, flag)
if ver in sslver:
al.ssl_flags_en |= num
else:
al.ssl_flags_de |= num
if sslver == ["all"]:
x = al.ssl_flags_en
al.ssl_flags_en = al.ssl_flags_de
al.ssl_flags_de = x
for k in ["ssl_flags_en", "ssl_flags_de"]:
num = getattr(al, k)
print("{}: {:8x} ({})".format(k, num, num))
# think i need that beer now
def configure_ssl_ciphers(al):
ctx = ssl.create_default_context(ssl.Purpose.CLIENT_AUTH)
if al.ssl_ver:
ctx.options &= ~al.ssl_flags_en
ctx.options |= al.ssl_flags_de
is_help = al.ciphers == "help"
if al.ciphers and not is_help:
try:
ctx.set_ciphers(al.ciphers)
except:
print("\n\033[1;31mfailed to set ciphers\033[0m\n")
if not hasattr(ctx, "get_ciphers"):
print("cannot read cipher list: openssl or python too old")
else:
ciphers = [x["description"] for x in ctx.get_ciphers()]
print("\n ".join(["\nenabled ciphers:"] + align_tab(ciphers) + [""]))
if is_help:
sys.exit(0)
def sighandler(sig=None, frame=None):
msg = [""] * 5
for th in threading.enumerate():
msg.append(str(th))
msg.extend(traceback.format_stack(sys._current_frames()[th.ident]))
msg.append("\n")
print("\n".join(msg))
def stackmon(fp, ival):
ctr = 0
while True:
ctr += 1
time.sleep(ival)
st = "{}, {}\n{}".format(ctr, time.time(), alltrace())
with open(fp, "wb") as f:
f.write(st.encode("utf-8", "replace"))
def run_argparse(argv, formatter):
ap = argparse.ArgumentParser(
formatter_class=formatter,
prog="copyparty",
description="http file sharing hub v{} ({})".format(S_VERSION, S_BUILD_DT),
epilog=dedent(
"""
-a takes username:password,
-v takes src:dst:permset:permset:cflag:cflag:...
where "permset" is accesslevel followed by username (no separator)
and "cflag" is config flags to set on this volume
list of cflags:
"cnodupe" rejects existing files (instead of symlinking them)
"ce2d" sets -e2d (all -e2* args can be set using ce2* cflags)
"cd2t" disables metadata collection, overrides -e2t*
"cd2d" disables all database stuff, overrides -e2*
example:\033[35m
-a ed:hunter2 -v .::r:aed -v ../inc:dump:w:aed:cnodupe \033[36m
mount current directory at "/" with
* r (read-only) for everyone
* a (read+write) for ed
mount ../inc at "/dump" with
* w (write-only) for everyone
* a (read+write) for ed
* reject duplicate files \033[0m
if no accounts or volumes are configured,
current folder will be read/write for everyone
consider the config file for more flexible account/volume management,
including dynamic reload at runtime (and being more readable w)
values for --urlform:
"stash" dumps the data to file and returns length + checksum
"save,get" dumps to file and returns the page like a GET
"print,get" prints the data in the log and returns GET
(leave out the ",get" to return an error instead)
values for --ls:
"USR" is a user to browse as; * is anonymous, ** is all users
"VOL" is a single volume to scan, default is * (all vols)
"FLAG" is flags;
"v" in addition to realpaths, print usernames and vpaths
"ln" only prints symlinks leaving the volume mountpoint
"p" exits 1 if any such symlinks are found
"r" resumes startup after the listing
examples:
--ls '**' # list all files which are possible to read
--ls '**,*,ln' # check for dangerous symlinks
--ls '**,*,ln,p,r' # check, then start normally if safe
\033[0m
"""
),
)
# fmt: off
ap.add_argument("-c", metavar="PATH", type=str, action="append", help="add config file")
ap.add_argument("-nc", metavar="NUM", type=int, default=64, help="max num clients")
ap.add_argument("-j", metavar="CORES", type=int, default=1, help="max num cpu cores")
ap.add_argument("-a", metavar="ACCT", type=str, action="append", help="add account, USER:PASS; example [ed:wark")
ap.add_argument("-v", metavar="VOL", type=str, action="append", help="add volume, SRC:DST:FLAG; example [.::r], [/mnt/nas/music:/music:r:aed")
ap.add_argument("-ed", action="store_true", help="enable ?dots")
ap.add_argument("-emp", action="store_true", help="enable markdown plugins")
ap.add_argument("-mcr", metavar="SEC", type=int, default=60, help="md-editor mod-chk rate")
ap.add_argument("--dotpart", action="store_true", help="dotfile incomplete uploads")
ap.add_argument("--sparse", metavar="MiB", type=int, default=4, help="up2k min.size threshold (mswin-only)")
ap.add_argument("--urlform", metavar="MODE", type=str, default="print,get", help="how to handle url-forms; examples: [stash], [save,get]")
ap2 = ap.add_argument_group('network options')
ap2.add_argument("-i", metavar="IP", type=str, default="0.0.0.0", help="ip to bind (comma-sep.)")
ap2.add_argument("-p", metavar="PORT", type=str, default="3923", help="ports to bind (comma/range)")
ap2.add_argument("--rproxy", metavar="DEPTH", type=int, default=1, help="which ip to keep; 0 = tcp, 1 = origin (first x-fwd), 2 = cloudflare, 3 = nginx, -1 = closest proxy")
ap2 = ap.add_argument_group('SSL/TLS options')
ap2.add_argument("--http-only", action="store_true", help="disable ssl/tls")
ap2.add_argument("--https-only", action="store_true", help="disable plaintext")
ap2.add_argument("--ssl-ver", metavar="LIST", type=str, help="set allowed ssl/tls versions; [help] shows available versions; default is what your python version considers safe")
ap2.add_argument("--ciphers", metavar="LIST", help="set allowed ssl/tls ciphers; [help] shows available ciphers")
ap2.add_argument("--ssl-dbg", action="store_true", help="dump some tls info")
ap2.add_argument("--ssl-log", metavar="PATH", help="log master secrets")
ap2 = ap.add_argument_group('opt-outs')
ap2.add_argument("-nw", action="store_true", help="disable writes (benchmark)")
ap2.add_argument("-nih", action="store_true", help="no info hostname")
ap2.add_argument("-nid", action="store_true", help="no info disk-usage")
ap2.add_argument("--no-zip", action="store_true", help="disable download as zip/tar")
ap2 = ap.add_argument_group('safety options')
ap2.add_argument("--ls", metavar="U[,V[,F]]", help="scan all volumes; arguments USER,VOL,FLAGS; example [**,*,ln,p,r]")
ap2.add_argument("--salt", type=str, default="hunter2", help="up2k file-hash salt")
ap2 = ap.add_argument_group('logging options')
ap2.add_argument("-q", action="store_true", help="quiet")
ap2.add_argument("--log-conn", action="store_true", help="print tcp-server msgs")
ap2.add_argument("--ihead", metavar="HEADER", action='append', help="dump incoming header")
ap2.add_argument("--lf-url", metavar="RE", type=str, default=r"^/\.cpr/|\?th=[wj]$", help="dont log URLs matching")
ap2 = ap.add_argument_group('admin panel options')
ap2.add_argument("--no-rescan", action="store_true", help="disable ?scan (volume reindexing)")
ap2.add_argument("--no-stack", action="store_true", help="disable ?stack (list all stacks)")
ap2 = ap.add_argument_group('thumbnail options')
ap2.add_argument("--no-thumb", action="store_true", help="disable all thumbnails")
ap2.add_argument("--no-vthumb", action="store_true", help="disable video thumbnails")
ap2.add_argument("--th-size", metavar="WxH", default="320x256", help="thumbnail res")
ap2.add_argument("--th-no-crop", action="store_true", help="dynamic height; show full image")
ap2.add_argument("--th-no-jpg", action="store_true", help="disable jpg output")
ap2.add_argument("--th-no-webp", action="store_true", help="disable webp output")
ap2.add_argument("--th-ff-jpg", action="store_true", help="force jpg for video thumbs")
ap2.add_argument("--th-poke", metavar="SEC", type=int, default=300, help="activity labeling cooldown")
ap2.add_argument("--th-clean", metavar="SEC", type=int, default=43200, help="cleanup interval")
ap2.add_argument("--th-maxage", metavar="SEC", type=int, default=604800, help="max folder age")
ap2.add_argument("--th-covers", metavar="N,N", type=str, default="folder.png,folder.jpg,cover.png,cover.jpg", help="folder thumbnails to stat for")
ap2 = ap.add_argument_group('database options')
ap2.add_argument("-e2d", action="store_true", help="enable up2k database")
ap2.add_argument("-e2ds", action="store_true", help="enable up2k db-scanner, sets -e2d")
ap2.add_argument("-e2dsa", action="store_true", help="scan all folders (for search), sets -e2ds")
ap2.add_argument("-e2t", action="store_true", help="enable metadata indexing")
ap2.add_argument("-e2ts", action="store_true", help="enable metadata scanner, sets -e2t")
ap2.add_argument("-e2tsr", action="store_true", help="rescan all metadata, sets -e2ts")
ap2.add_argument("--hist", metavar="PATH", type=str, help="where to store volume state")
ap2.add_argument("--no-hash", action="store_true", help="disable hashing during e2ds folder scans")
ap2.add_argument("--no-mutagen", action="store_true", help="use ffprobe for tags instead")
ap2.add_argument("--no-mtag-mt", action="store_true", help="disable tag-read parallelism")
ap2.add_argument("-mtm", metavar="M=t,t,t", action="append", type=str, help="add/replace metadata mapping")
ap2.add_argument("-mte", metavar="M,M,M", type=str, help="tags to index/display (comma-sep.)",
default="circle,album,.tn,artist,title,.bpm,key,.dur,.q,.vq,.aq,ac,vc,res,.fps")
ap2.add_argument("-mtp", metavar="M=[f,]bin", action="append", type=str, help="read tag M using bin")
ap2.add_argument("--srch-time", metavar="SEC", type=int, default=30, help="search deadline")
ap2 = ap.add_argument_group('appearance options')
ap2.add_argument("--css-browser", metavar="L", help="URL to additional CSS to include")
ap2 = ap.add_argument_group('debug options')
ap2.add_argument("--no-sendfile", action="store_true", help="disable sendfile")
ap2.add_argument("--no-scandir", action="store_true", help="disable scandir")
ap2.add_argument("--no-fastboot", action="store_true", help="wait for up2k indexing")
ap2.add_argument("--stackmon", metavar="P,S", help="write stacktrace to Path every S second")
return ap.parse_args(args=argv[1:])
# fmt: on
def main(argv=None):
time.strptime("19970815", "%Y%m%d") # python#7980
if WINDOWS:
os.system("rem") # enables colors
if argv is None:
argv = sys.argv
desc = py_desc().replace("[", "\033[1;30m[")
f = '\033[36mcopyparty v{} "\033[35m{}\033[36m" ({})\n{}\033[0m\n'
print(f.format(S_VERSION, CODENAME, S_BUILD_DT, desc))
ensure_locale()
if HAVE_SSL:
ensure_cert()
deprecated = [["-e2s", "-e2ds"]]
for dk, nk in deprecated:
try:
idx = argv.index(dk)
except:
continue
msg = "\033[1;31mWARNING:\033[0;1m\n {} \033[0;33mwas replaced with\033[0;1m {} \033[0;33mand will be removed\n\033[0m"
print(msg.format(dk, nk))
argv[idx] = nk
time.sleep(2)
try:
al = run_argparse(argv, RiceFormatter)
except AssertionError:
al = run_argparse(argv, Dodge11874)
if al.stackmon:
fp, f = al.stackmon.rsplit(",", 1)
f = int(f)
t = threading.Thread(
target=stackmon,
args=(fp, f),
)
t.daemon = True
t.start()
# propagate implications
for k1, k2 in IMPLICATIONS:
if getattr(al, k1):
setattr(al, k2, True)
al.i = al.i.split(",")
try:
if "-" in al.p:
lo, hi = [int(x) for x in al.p.split("-")]
al.p = list(range(lo, hi + 1))
else:
al.p = [int(x) for x in al.p.split(",")]
except:
raise Exception("invalid value for -p")
if HAVE_SSL:
if al.ssl_ver:
configure_ssl_ver(al)
if al.ciphers:
configure_ssl_ciphers(al)
else:
warn("ssl module does not exist; cannot enable https")
if PY2 and WINDOWS and al.e2d:
warn(
"windows py2 cannot do unicode filenames with -e2d\n"
+ " (if you crash with codec errors then that is why)"
)
if sys.version_info < (3, 6):
al.no_scandir = True
# signal.signal(signal.SIGINT, sighandler)
SvcHub(al).run()
if __name__ == "__main__":
main()