copyparty/copyparty/th_srv.py
ed 53f1e3c91d ui option to play video as audio
audio extraction happens serverside to opus or mp3
depending on browser support

remuxing (extracting audio without transcoding)
is currently not supported, and is not planned
2024-07-22 22:30:21 +00:00

919 lines
29 KiB
Python

# coding: utf-8
from __future__ import print_function, unicode_literals
import base64
import hashlib
import logging
import os
import shutil
import subprocess as sp
import threading
import time
from queue import Queue
from .__init__ import ANYWIN, TYPE_CHECKING
from .authsrv import VFS
from .bos import bos
from .mtag import HAVE_FFMPEG, HAVE_FFPROBE, au_unpk, ffprobe
from .util import BytesIO # type: ignore
from .util import (
FFMPEG_URL,
Cooldown,
Daemon,
Pebkac,
afsenc,
fsenc,
min_ex,
runcmd,
statdir,
vsplit,
wrename,
wunlink,
)
if True: # pylint: disable=using-constant-test
from typing import Optional, Union
if TYPE_CHECKING:
from .svchub import SvcHub
HAVE_PIL = False
HAVE_PILF = False
HAVE_HEIF = False
HAVE_AVIF = False
HAVE_WEBP = False
try:
from PIL import ExifTags, Image, ImageFont, ImageOps
HAVE_PIL = True
try:
ImageFont.load_default(size=16)
HAVE_PILF = True
except:
pass
try:
Image.new("RGB", (2, 2)).save(BytesIO(), format="webp")
HAVE_WEBP = True
except:
pass
try:
from pyheif_pillow_opener import register_heif_opener
register_heif_opener()
HAVE_HEIF = True
except:
pass
try:
import pillow_avif # noqa: F401 # pylint: disable=unused-import
HAVE_AVIF = True
except:
pass
logging.getLogger("PIL").setLevel(logging.WARNING)
except:
pass
try:
HAVE_VIPS = True
import pyvips
logging.getLogger("pyvips").setLevel(logging.WARNING)
except:
HAVE_VIPS = False
def thumb_path(histpath: str, rem: str, mtime: float, fmt: str, ffa: set[str]) -> str:
# base16 = 16 = 256
# b64-lc = 38 = 1444
# base64 = 64 = 4096
rd, fn = vsplit(rem)
if not rd:
rd = "\ntop"
# spectrograms are never cropped; strip fullsize flag
ext = rem.split(".")[-1].lower()
if ext in ffa and fmt[:2] in ("wf", "jf"):
fmt = fmt.replace("f", "")
rd += "\n" + fmt
h = hashlib.sha512(afsenc(rd)).digest()
b64 = base64.urlsafe_b64encode(h).decode("ascii")[:24]
rd = ("%s/%s/" % (b64[:2], b64[2:4])).lower() + b64
# could keep original filenames but this is safer re pathlen
h = hashlib.sha512(afsenc(fn)).digest()
fn = base64.urlsafe_b64encode(h).decode("ascii")[:24]
if fmt in ("opus", "caf", "mp3"):
cat = "ac"
else:
fc = fmt[:1]
fmt = "webp" if fc == "w" else "png" if fc == "p" else "jpg"
cat = "th"
return "%s/%s/%s/%s.%x.%s" % (histpath, cat, rd, fn, int(mtime), fmt)
class ThumbSrv(object):
def __init__(self, hub: "SvcHub") -> None:
self.hub = hub
self.asrv = hub.asrv
self.args = hub.args
self.log_func = hub.log
self.poke_cd = Cooldown(self.args.th_poke)
self.mutex = threading.Lock()
self.busy: dict[str, list[threading.Condition]] = {}
self.ram: dict[str, float] = {}
self.memcond = threading.Condition(self.mutex)
self.stopping = False
self.nthr = max(1, self.args.th_mt)
self.q: Queue[Optional[tuple[str, str, str, VFS]]] = Queue(self.nthr * 4)
for n in range(self.nthr):
Daemon(self.worker, "thumb-{}-{}".format(n, self.nthr))
want_ff = not self.args.no_vthumb or not self.args.no_athumb
if want_ff and (not HAVE_FFMPEG or not HAVE_FFPROBE):
missing = []
if not HAVE_FFMPEG:
missing.append("FFmpeg")
if not HAVE_FFPROBE:
missing.append("FFprobe")
msg = "cannot create audio/video thumbnails because some of the required programs are not available: "
msg += ", ".join(missing)
self.log(msg, c=3)
if ANYWIN and self.args.no_acode:
self.log("download FFmpeg to fix it:\033[0m " + FFMPEG_URL, 3)
if self.args.th_clean:
Daemon(self.cleaner, "thumb.cln")
self.fmt_pil, self.fmt_vips, self.fmt_ffi, self.fmt_ffv, self.fmt_ffa = [
set(y.split(","))
for y in [
self.args.th_r_pil,
self.args.th_r_vips,
self.args.th_r_ffi,
self.args.th_r_ffv,
self.args.th_r_ffa,
]
]
if not HAVE_HEIF:
for f in "heif heifs heic heics".split(" "):
self.fmt_pil.discard(f)
if not HAVE_AVIF:
for f in "avif avifs".split(" "):
self.fmt_pil.discard(f)
self.thumbable: set[str] = set()
if "pil" in self.args.th_dec:
self.thumbable |= self.fmt_pil
if "vips" in self.args.th_dec:
self.thumbable |= self.fmt_vips
if "ff" in self.args.th_dec:
for zss in [self.fmt_ffi, self.fmt_ffv, self.fmt_ffa]:
self.thumbable |= zss
def log(self, msg: str, c: Union[int, str] = 0) -> None:
self.log_func("thumb", msg, c)
def shutdown(self) -> None:
self.stopping = True
for _ in range(self.nthr):
self.q.put(None)
def stopped(self) -> bool:
with self.mutex:
return not self.nthr
def getres(self, vn: VFS, fmt: str) -> tuple[int, int]:
mul = 3 if "3" in fmt else 1
w, h = vn.flags["thsize"].split("x")
return int(w) * mul, int(h) * mul
def get(self, ptop: str, rem: str, mtime: float, fmt: str) -> Optional[str]:
histpath = self.asrv.vfs.histtab.get(ptop)
if not histpath:
self.log("no histpath for [{}]".format(ptop))
return None
tpath = thumb_path(histpath, rem, mtime, fmt, self.fmt_ffa)
abspath = os.path.join(ptop, rem)
cond = threading.Condition(self.mutex)
do_conv = False
with self.mutex:
try:
self.busy[tpath].append(cond)
self.log("joined waiting room for %s" % (tpath,))
except:
thdir = os.path.dirname(tpath)
bos.makedirs(os.path.join(thdir, "w"))
inf_path = os.path.join(thdir, "dir.txt")
if not bos.path.exists(inf_path):
with open(inf_path, "wb") as f:
f.write(afsenc(os.path.dirname(abspath)))
self.busy[tpath] = [cond]
do_conv = True
if do_conv:
allvols = list(self.asrv.vfs.all_vols.values())
vn = next((x for x in allvols if x.realpath == ptop), None)
if not vn:
self.log("ptop [{}] not in {}".format(ptop, allvols), 3)
vn = self.asrv.vfs.all_aps[0][1]
self.q.put((abspath, tpath, fmt, vn))
self.log("conv {} :{} \033[0m{}".format(tpath, fmt, abspath), c=6)
while not self.stopping:
with self.mutex:
if tpath not in self.busy:
break
with cond:
cond.wait(3)
try:
st = bos.stat(tpath)
if st.st_size:
self.poke(tpath)
return tpath
except:
pass
return None
def getcfg(self) -> dict[str, set[str]]:
return {
"thumbable": self.thumbable,
"pil": self.fmt_pil,
"vips": self.fmt_vips,
"ffi": self.fmt_ffi,
"ffv": self.fmt_ffv,
"ffa": self.fmt_ffa,
}
def wait4ram(self, need: float, ttpath: str) -> None:
ram = self.args.th_ram_max
if need > ram * 0.99:
t = "file too big; need %.2f GiB RAM, but --th-ram-max is only %.1f"
raise Exception(t % (need, ram))
while True:
with self.mutex:
used = sum([v for k, v in self.ram.items() if k != ttpath]) + need
if used < ram:
# self.log("XXX self.ram: %s" % (self.ram,), 5)
self.ram[ttpath] = need
return
with self.memcond:
# self.log("at RAM limit; used %.2f GiB, need %.2f more" % (used-need, need), 1)
self.memcond.wait(3)
def worker(self) -> None:
while not self.stopping:
task = self.q.get()
if not task:
break
abspath, tpath, fmt, vn = task
ext = abspath.split(".")[-1].lower()
png_ok = False
funs = []
if ext in self.args.au_unpk:
ap_unpk = au_unpk(self.log, self.args.au_unpk, abspath, vn)
else:
ap_unpk = abspath
if not bos.path.exists(tpath):
want_mp3 = tpath.endswith(".mp3")
want_opus = tpath.endswith(".opus") or tpath.endswith(".caf")
want_png = tpath.endswith(".png")
want_au = want_mp3 or want_opus
for lib in self.args.th_dec:
can_au = lib == "ff" and (ext in self.fmt_ffa or ext in self.fmt_ffv)
if lib == "pil" and ext in self.fmt_pil:
funs.append(self.conv_pil)
elif lib == "vips" and ext in self.fmt_vips:
funs.append(self.conv_vips)
elif can_au and (want_png or want_au):
if want_opus:
funs.append(self.conv_opus)
elif want_mp3:
funs.append(self.conv_mp3)
elif want_png:
funs.append(self.conv_waves)
png_ok = True
elif lib == "ff" and (ext in self.fmt_ffi or ext in self.fmt_ffv):
funs.append(self.conv_ffmpeg)
elif lib == "ff" and ext in self.fmt_ffa and not want_au:
funs.append(self.conv_spec)
tdir, tfn = os.path.split(tpath)
ttpath = os.path.join(tdir, "w", tfn)
try:
wunlink(self.log, ttpath, vn.flags)
except:
pass
for fun in funs:
try:
if not png_ok and tpath.endswith(".png"):
raise Exception("png only allowed for waveforms")
fun(ap_unpk, ttpath, fmt, vn)
break
except Exception as ex:
msg = "{} could not create thumbnail of {}\n{}"
msg = msg.format(fun.__name__, abspath, min_ex())
c: Union[str, int] = 1 if "<Signals.SIG" in msg else "90"
self.log(msg, c)
if getattr(ex, "returncode", 0) != 321:
if fun == funs[-1]:
with open(ttpath, "wb") as _:
pass
else:
# ffmpeg may spawn empty files on windows
try:
wunlink(self.log, ttpath, vn.flags)
except:
pass
if abspath != ap_unpk:
wunlink(self.log, ap_unpk, vn.flags)
try:
wrename(self.log, ttpath, tpath, vn.flags)
except:
pass
with self.mutex:
subs = self.busy[tpath]
del self.busy[tpath]
self.ram.pop(ttpath, None)
for x in subs:
with x:
x.notify_all()
with self.memcond:
self.memcond.notify_all()
with self.mutex:
self.nthr -= 1
def fancy_pillow(self, im: "Image.Image", fmt: str, vn: VFS) -> "Image.Image":
# exif_transpose is expensive (loads full image + unconditional copy)
res = self.getres(vn, fmt)
r = max(*res) * 2
im.thumbnail((r, r), resample=Image.LANCZOS)
try:
k = next(k for k, v in ExifTags.TAGS.items() if v == "Orientation")
exif = im.getexif()
rot = int(exif[k])
del exif[k]
except:
rot = 1
rots = {8: Image.ROTATE_90, 3: Image.ROTATE_180, 6: Image.ROTATE_270}
if rot in rots:
im = im.transpose(rots[rot])
if "f" in fmt:
im.thumbnail(res, resample=Image.LANCZOS)
else:
iw, ih = im.size
dw, dh = res
res = (min(iw, dw), min(ih, dh))
im = ImageOps.fit(im, res, method=Image.LANCZOS)
return im
def conv_pil(self, abspath: str, tpath: str, fmt: str, vn: VFS) -> None:
self.wait4ram(0.2, tpath)
with Image.open(fsenc(abspath)) as im:
try:
im = self.fancy_pillow(im, fmt, vn)
except Exception as ex:
self.log("fancy_pillow {}".format(ex), "90")
im.thumbnail(self.getres(vn, fmt))
fmts = ["RGB", "L"]
args = {"quality": 40}
if tpath.endswith(".webp"):
# quality 80 = pillow-default
# quality 75 = ffmpeg-default
# method 0 = pillow-default, fast
# method 4 = ffmpeg-default
# method 6 = max, slow
fmts.extend(("RGBA", "LA"))
args["method"] = 6
else:
# default q = 75
args["progressive"] = True
if im.mode not in fmts:
# print("conv {}".format(im.mode))
im = im.convert("RGB")
im.save(tpath, **args)
def conv_vips(self, abspath: str, tpath: str, fmt: str, vn: VFS) -> None:
self.wait4ram(0.2, tpath)
crops = ["centre", "none"]
if "f" in fmt:
crops = ["none"]
w, h = self.getres(vn, fmt)
kw = {"height": h, "size": "down", "intent": "relative"}
for c in crops:
try:
kw["crop"] = c
img = pyvips.Image.thumbnail(abspath, w, **kw)
break
except:
if c == crops[-1]:
raise
assert img # type: ignore
img.write_to_file(tpath, Q=40)
def conv_ffmpeg(self, abspath: str, tpath: str, fmt: str, vn: VFS) -> None:
self.wait4ram(0.2, tpath)
ret, _ = ffprobe(abspath, int(vn.flags["convt"] / 2))
if not ret:
return
ext = abspath.rsplit(".")[-1].lower()
if ext in ["h264", "h265"] or ext in self.fmt_ffi:
seek: list[bytes] = []
else:
dur = ret[".dur"][1] if ".dur" in ret else 4
seek = [b"-ss", "{:.0f}".format(dur / 3).encode("utf-8")]
scale = "scale={0}:{1}:force_original_aspect_ratio="
if "f" in fmt:
scale += "decrease,setsar=1:1"
else:
scale += "increase,crop={0}:{1},setsar=1:1"
res = self.getres(vn, fmt)
bscale = scale.format(*list(res)).encode("utf-8")
# fmt: off
cmd = [
b"ffmpeg",
b"-nostdin",
b"-v", b"error",
b"-hide_banner"
]
cmd += seek
cmd += [
b"-i", fsenc(abspath),
b"-map", b"0:v:0",
b"-vf", bscale,
b"-frames:v", b"1",
b"-metadata:s:v:0", b"rotate=0",
]
# fmt: on
if tpath.endswith(".jpg"):
cmd += [
b"-q:v",
b"6", # default=??
]
else:
cmd += [
b"-q:v",
b"50", # default=75
b"-compression_level:v",
b"6", # default=4, 0=fast, 6=max
]
cmd += [fsenc(tpath)]
self._run_ff(cmd, vn)
def _run_ff(self, cmd: list[bytes], vn: VFS, oom: int = 400) -> None:
# self.log((b" ".join(cmd)).decode("utf-8"))
ret, _, serr = runcmd(cmd, timeout=vn.flags["convt"], nice=True, oom=oom)
if not ret:
return
c: Union[str, int] = "90"
t = "FFmpeg failed (probably a corrupt video file):\n"
if (
(not self.args.th_ff_jpg or time.time() - int(self.args.th_ff_jpg) < 60)
and cmd[-1].lower().endswith(b".webp")
and (
"Error selecting an encoder" in serr
or "Automatic encoder selection failed" in serr
or "Default encoder for format webp" in serr
or "Please choose an encoder manually" in serr
)
):
self.args.th_ff_jpg = time.time()
t = "FFmpeg failed because it was compiled without libwebp; enabling --th-ff-jpg to force jpeg output:\n"
ret = 321
c = 1
if (
not self.args.th_ff_swr or time.time() - int(self.args.th_ff_swr) < 60
) and (
"Requested resampling engine is unavailable" in serr
or "output pad on Parsed_aresample_" in serr
):
self.args.th_ff_swr = time.time()
t = "FFmpeg failed because it was compiled without libsox; enabling --th-ff-swr to force swr resampling:\n"
ret = 321
c = 1
lines = serr.strip("\n").split("\n")
if len(lines) > 50:
lines = lines[:25] + ["[...]"] + lines[-25:]
txt = "\n".join(["ff: " + str(x) for x in lines])
if len(txt) > 5000:
txt = txt[:2500] + "...\nff: [...]\nff: ..." + txt[-2500:]
self.log(t + txt, c=c)
raise sp.CalledProcessError(ret, (cmd[0], b"...", cmd[-1]))
def conv_waves(self, abspath: str, tpath: str, fmt: str, vn: VFS) -> None:
ret, _ = ffprobe(abspath, int(vn.flags["convt"] / 2))
if "ac" not in ret:
raise Exception("not audio")
# jt_versi.xm: 405M/839s
dur = ret[".dur"][1] if ".dur" in ret else 300
need = 0.2 + dur / 3000
speedup = b""
if need > self.args.th_ram_max * 0.7:
self.log("waves too big (need %.2f GiB); trying to optimize" % (need,))
need = 0.2 + dur / 4200 # only helps about this much...
speedup = b"aresample=8000,"
if need > self.args.th_ram_max * 0.96:
raise Exception("file too big; cannot waves")
self.wait4ram(need, tpath)
flt = b"[0:a:0]" + speedup
flt += (
b"compand=.3|.3:1|1:-90/-60|-60/-40|-40/-30|-20/-20:6:0:-90:0.2"
b",volume=2"
b",showwavespic=s=2048x64:colors=white"
b",convolution=1 1 1 1 1 1 1 1 1:1 1 1 1 1 1 1 1 1:1 1 1 1 1 1 1 1 1:1 -1 1 -1 5 -1 1 -1 1" # idk what im doing but it looks ok
)
# fmt: off
cmd = [
b"ffmpeg",
b"-nostdin",
b"-v", b"error",
b"-hide_banner",
b"-i", fsenc(abspath),
b"-filter_complex", flt,
b"-frames:v", b"1",
]
# fmt: on
cmd += [fsenc(tpath)]
self._run_ff(cmd, vn)
if "pngquant" in vn.flags:
wtpath = tpath + ".png"
cmd = [
b"pngquant",
b"--strip",
b"--nofs",
b"--output",
fsenc(wtpath),
fsenc(tpath),
]
ret = runcmd(cmd, timeout=vn.flags["convt"], nice=True, oom=400)[0]
if ret:
try:
wunlink(self.log, wtpath, vn.flags)
except:
pass
else:
wrename(self.log, wtpath, tpath, vn.flags)
def conv_spec(self, abspath: str, tpath: str, fmt: str, vn: VFS) -> None:
ret, _ = ffprobe(abspath, int(vn.flags["convt"] / 2))
if "ac" not in ret:
raise Exception("not audio")
# https://trac.ffmpeg.org/ticket/10797
# expect 1 GiB every 600 seconds when duration is tricky;
# simple filetypes are generally safer so let's special-case those
safe = ("flac", "wav", "aif", "aiff", "opus")
coeff = 1800 if abspath.split(".")[-1].lower() in safe else 600
dur = ret[".dur"][1] if ".dur" in ret else 300
need = 0.2 + dur / coeff
self.wait4ram(need, tpath)
fc = "[0:a:0]aresample=48000{},showspectrumpic=s="
if "3" in fmt:
fc += "1280x1024,crop=1420:1056:70:48[o]"
else:
fc += "640x512,crop=780:544:70:48[o]"
if self.args.th_ff_swr:
fco = ":filter_size=128:cutoff=0.877"
else:
fco = ":resampler=soxr"
fc = fc.format(fco)
# fmt: off
cmd = [
b"ffmpeg",
b"-nostdin",
b"-v", b"error",
b"-hide_banner",
b"-i", fsenc(abspath),
b"-filter_complex", fc.encode("utf-8"),
b"-map", b"[o]",
b"-frames:v", b"1",
]
# fmt: on
if tpath.endswith(".jpg"):
cmd += [
b"-q:v",
b"6", # default=??
]
else:
cmd += [
b"-q:v",
b"50", # default=75
b"-compression_level:v",
b"6", # default=4, 0=fast, 6=max
]
cmd += [fsenc(tpath)]
self._run_ff(cmd, vn)
def conv_mp3(self, abspath: str, tpath: str, fmt: str, vn: VFS) -> None:
quality = self.args.q_mp3.lower()
if self.args.no_acode or not quality:
raise Exception("disabled in server config")
self.wait4ram(0.2, tpath)
tags, rawtags = ffprobe(abspath, int(vn.flags["convt"] / 2))
if "ac" not in tags:
raise Exception("not audio")
if quality.endswith("k"):
qk = b"-b:a"
qv = quality.encode("ascii")
else:
qk = b"-q:a"
qv = quality[1:].encode("ascii")
# extremely conservative choices for output format
# (always 2ch 44k1) because if a device is old enough
# to not support opus then it's probably also super picky
# fmt: off
cmd = [
b"ffmpeg",
b"-nostdin",
b"-v", b"error",
b"-hide_banner",
b"-i", fsenc(abspath),
] + self.big_tags(rawtags) + [
b"-map", b"0:a:0",
b"-ar", b"44100",
b"-ac", b"2",
b"-c:a", b"libmp3lame",
qk, qv,
fsenc(tpath)
]
# fmt: on
self._run_ff(cmd, vn, oom=300)
def conv_opus(self, abspath: str, tpath: str, fmt: str, vn: VFS) -> None:
if self.args.no_acode or not self.args.q_opus:
raise Exception("disabled in server config")
self.wait4ram(0.2, tpath)
tags, rawtags = ffprobe(abspath, int(vn.flags["convt"] / 2))
if "ac" not in tags:
raise Exception("not audio")
try:
dur = tags[".dur"][1]
except:
dur = 0
src_opus = abspath.lower().endswith(".opus") or tags["ac"][1] == "opus"
want_caf = tpath.endswith(".caf")
tmp_opus = tpath
if want_caf:
tmp_opus = tpath + ".opus"
try:
wunlink(self.log, tmp_opus, vn.flags)
except:
pass
caf_src = abspath if src_opus else tmp_opus
bq = ("%dk" % (self.args.q_opus,)).encode("ascii")
if not want_caf or not src_opus:
# fmt: off
cmd = [
b"ffmpeg",
b"-nostdin",
b"-v", b"error",
b"-hide_banner",
b"-i", fsenc(abspath),
] + self.big_tags(rawtags) + [
b"-map", b"0:a:0",
b"-c:a", b"libopus",
b"-b:a", bq,
fsenc(tmp_opus)
]
# fmt: on
self._run_ff(cmd, vn, oom=300)
# iOS fails to play some "insufficiently complex" files
# (average file shorter than 8 seconds), so of course we
# fix that by mixing in some inaudible pink noise :^)
# 6.3 sec seems like the cutoff so lets do 7, and
# 7 sec of psyqui-musou.opus @ 3:50 is 174 KiB
if want_caf and (dur < 20 or bos.path.getsize(caf_src) < 256 * 1024):
# fmt: off
cmd = [
b"ffmpeg",
b"-nostdin",
b"-v", b"error",
b"-hide_banner",
b"-i", fsenc(abspath),
b"-filter_complex", b"anoisesrc=a=0.001:d=7:c=pink,asplit[l][r]; [l][r]amerge[s]; [0:a:0][s]amix",
b"-map_metadata", b"-1",
b"-ac", b"2",
b"-c:a", b"libopus",
b"-b:a", bq,
b"-f", b"caf",
fsenc(tpath)
]
# fmt: on
self._run_ff(cmd, vn, oom=300)
elif want_caf:
# simple remux should be safe
# fmt: off
cmd = [
b"ffmpeg",
b"-nostdin",
b"-v", b"error",
b"-hide_banner",
b"-i", fsenc(abspath if src_opus else tmp_opus),
b"-map_metadata", b"-1",
b"-map", b"0:a:0",
b"-c:a", b"copy",
b"-f", b"caf",
fsenc(tpath)
]
# fmt: on
self._run_ff(cmd, vn, oom=300)
if tmp_opus != tpath:
try:
wunlink(self.log, tmp_opus, vn.flags)
except:
pass
def big_tags(self, raw_tags: dict[str, list[str]]) -> list[bytes]:
ret = []
for k, vs in raw_tags.items():
for v in vs:
if len(str(v)) >= 1024:
bv = k.encode("utf-8", "replace")
ret += [b"-metadata", bv + b"="]
break
return ret
def poke(self, tdir: str) -> None:
if not self.poke_cd.poke(tdir):
return
ts = int(time.time())
try:
for _ in range(4):
bos.utime(tdir, (ts, ts))
tdir = os.path.dirname(tdir)
except:
pass
def cleaner(self) -> None:
interval = self.args.th_clean
while True:
time.sleep(interval)
ndirs = 0
for vol, histpath in self.asrv.vfs.histtab.items():
if histpath.startswith(vol):
self.log("\033[Jcln {}/\033[A".format(histpath))
else:
self.log("\033[Jcln {} ({})/\033[A".format(histpath, vol))
try:
ndirs += self.clean(histpath)
except Exception as ex:
self.log("\033[Jcln err in %s: %r" % (histpath, ex), 3)
self.log("\033[Jcln ok; rm {} dirs".format(ndirs))
def clean(self, histpath: str) -> int:
ret = 0
for cat in ["th", "ac"]:
top = os.path.join(histpath, cat)
if not bos.path.isdir(top):
continue
ret += self._clean(cat, top)
return ret
def _clean(self, cat: str, thumbpath: str) -> int:
# self.log("cln {}".format(thumbpath))
exts = ["jpg", "webp", "png"] if cat == "th" else ["opus", "caf", "mp3"]
maxage = getattr(self.args, cat + "_maxage")
now = time.time()
prev_b64 = None
prev_fp = ""
try:
t1 = statdir(self.log_func, not self.args.no_scandir, False, thumbpath)
ents = sorted(list(t1))
except:
return 0
ndirs = 0
for f, inf in ents:
fp = os.path.join(thumbpath, f)
cmp = fp.lower().replace("\\", "/")
# "top" or b64 prefix/full (a folder)
if len(f) <= 3 or len(f) == 24:
age = now - inf.st_mtime
if age > maxage:
with self.mutex:
safe = True
for k in self.busy:
if k.lower().replace("\\", "/").startswith(cmp):
safe = False
break
if safe:
ndirs += 1
self.log("rm -rf [{}]".format(fp))
shutil.rmtree(fp, ignore_errors=True)
else:
ndirs += self._clean(cat, fp)
continue
# thumb file
try:
b64, ts, ext = f.split(".")
if len(b64) != 24 or len(ts) != 8 or ext not in exts:
raise Exception()
except:
if f != "dir.txt":
self.log("foreign file in thumbs dir: [{}]".format(fp), 1)
continue
if b64 == prev_b64:
self.log("rm replaced [{}]".format(fp))
bos.unlink(prev_fp)
if cat != "th" and inf.st_mtime + maxage < now:
self.log("rm expired [{}]".format(fp))
bos.unlink(fp)
prev_b64 = b64
prev_fp = fp
return ndirs