mirror of
https://github.com/9001/copyparty.git
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98 lines
2.9 KiB
Python
Executable file
98 lines
2.9 KiB
Python
Executable file
#!/usr/bin/env python3
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import os
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import threading
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import subprocess as sp
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_ = r"""
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use copyparty as a file downloader by POSTing URLs as
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application/x-www-form-urlencoded (for example using the
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📟 message-to-server-log in the web-ui)
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this hook is a modified copy of wget.py, modified to
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make it import-safe so it can be run with the 'I' flag,
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which speeds up the startup time of the hook by 140x
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example usage as global config:
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--xm aw,I,bin/hooks/wget-i.py
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parameters explained,
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xm = execute on message-to-server-log
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aw = only users with write-access can use this
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I = import; do not fork / subprocess
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example usage as a volflag (per-volume config):
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-v srv/inc:inc:r:rw,ed:c,xm=aw,I,bin/hooks/wget.py
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^^^^^^^^^^^^^^^^^^^^^^^^^^^
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(share filesystem-path srv/inc as volume /inc,
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readable by everyone, read-write for user 'ed',
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running this plugin on all messages with the params explained above)
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example usage as a volflag in a copyparty config file:
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[/inc]
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srv/inc
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accs:
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r: *
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rw: ed
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flags:
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xm: aw,I,bin/hooks/wget.py
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the volflag examples only kicks in if you send the message
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while you're in the /inc folder (or any folder below there)
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IMPORTANT NOTE:
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because this hook uses the 'I' flag to run inside copyparty,
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many other flags will not work (f,j,c3,t3600 as seen in the
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original wget.py), and furthermore + more importantly we
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need to be EXCEPTIONALLY CAREFUL to avoid side-effects, so
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the os.chdir has been replaced with cwd=dirpath for example
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"""
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def do_stuff(inf):
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"""
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worker function which is executed in another thread to
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avoid blocking copyparty while the download is running,
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since we cannot use the 'f,t3600' hook-flags with 'I'
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"""
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# first things first; grab the logger-function which copyparty is letting us borrow
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log = inf["log"]
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url = inf["txt"]
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if "://" not in url:
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url = "https://" + url
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proto = url.split("://")[0].lower()
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if proto not in ("http", "https", "ftp", "ftps"):
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raise Exception("bad proto {}".format(proto))
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dirpath = inf["ap"]
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name = url.split("?")[0].split("/")[-1]
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msg = "-- DOWNLOADING " + name
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log(msg)
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tfn = os.path.join(dirpath, msg)
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open(tfn, "wb").close()
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cmd = ["wget", "--trust-server-names", "-nv", "--", url]
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try:
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# two things to note here:
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# - cannot use the `c3` hook-flag with `I` so mute output with stdout=sp.DEVNULL instead;
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# - MUST NOT use os.chdir with 'I' so use cwd=dirpath instead
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sp.check_call(cmd, cwd=dirpath, stdout=sp.DEVNULL)
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except:
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t = "-- FAILED TO DOWNLOAD " + name
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log(t, 3) # 3=yellow=warning
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open(os.path.join(dirpath, t), "wb").close()
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raise # have copyparty scream about the details in the log
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os.unlink(tfn)
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def main(inf):
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threading.Thread(target=do_stuff, args=(inf,), daemon=True).start()
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