improve applefilters + add missing newline in curl 404

* webdav: extend applesan regex with more stuff to exclude
* on macos, set applesan as default `--no-idx` to avoid indexing them
   (they didn't show up in search since they're dotfiles, but still)

README.md

@@ -1028,6 +1028,8 @@ to save some time,  you can provide a regex pattern for filepaths to only index
 
 similarly, you can fully ignore files/folders using `--no-idx [...]` and `:c,noidx=\.iso$`
 
+* when running on macos, all the usual apple metadata files are excluded by default
+
 if you set `--no-hash [...]` globally, you can enable hashing for specific volumes using flag `:c,nohash=`
 
 ### filesystem guards

copyparty/__main__.py

@@ -20,12 +20,13 @@ import time
 import traceback
 import uuid
 
-from .__init__ import ANYWIN, CORES, EXE, PY2, VT100, WINDOWS, E, EnvParams, unicode
+from .__init__ import ANYWIN, CORES, EXE, MACOS, PY2, VT100, WINDOWS, E, EnvParams, unicode
 from .__version__ import CODENAME, S_BUILD_DT, S_VERSION
 from .authsrv import expand_config_file, split_cfg_ln, upgrade_cfg_fmt
 from .cfg import flagcats, onedash
 from .svchub import SvcHub
 from .util import (
+    APPLESAN_TXT,
     DEF_EXP,
     DEF_MTE,
     DEF_MTH,
@@ -1166,6 +1167,7 @@ def add_transcoding(ap):
 
 
 def add_db_general(ap, hcores):
+    noidx = APPLESAN_TXT if MACOS else ""
     ap2 = ap.add_argument_group('general db options')
     ap2.add_argument("-e2d", action="store_true", help="enable up2k database, making files searchable + enables upload deduplication")
     ap2.add_argument("-e2ds", action="store_true", help="scan writable folders for new files on startup; sets \033[33m-e2d\033[0m")
@@ -1175,7 +1177,7 @@ def add_db_general(ap, hcores):
     ap2.add_argument("-e2vp", action="store_true", help="on hash mismatch: panic and quit copyparty")
     ap2.add_argument("--hist", metavar="PATH", type=u, help="where to store volume data (db, thumbs) (volflag=hist)")
     ap2.add_argument("--no-hash", metavar="PTN", type=u, help="regex: disable hashing of matching absolute-filesystem-paths during e2ds folder scans (volflag=nohash)")
-    ap2.add_argument("--no-idx", metavar="PTN", type=u, help="regex: disable indexing of matching absolute-filesystem-paths during e2ds folder scans (volflag=noidx)")
+    ap2.add_argument("--no-idx", metavar="PTN", type=u, default=noidx, help="regex: disable indexing of matching absolute-filesystem-paths during e2ds folder scans (volflag=noidx)")
     ap2.add_argument("--no-dhash", action="store_true", help="disable rescan acceleration; do full database integrity check -- makes the db ~5%% smaller and bootup/rescans 3~10x slower")
     ap2.add_argument("--re-dhash", action="store_true", help="rebuild the cache if it gets out of sync (for example crash on startup during metadata scanning)")
     ap2.add_argument("--no-forget", action="store_true", help="never forget indexed files, even when deleted from disk -- makes it impossible to ever upload the same file twice -- only useful for offloading uploads to a cloud service or something (volflag=noforget)")

copyparty/httpcli.py

@@ -37,6 +37,7 @@ from .star import StreamTar
 from .sutil import StreamArc, gfilter
 from .szip import StreamZip
 from .util import (
+    APPLESAN_RE,
     HTTPCODE,
     META_NOBOTS,
     UTC,
@@ -1384,8 +1385,7 @@ class HttpCli(object):
             return False
 
         vp = "/" + self.vpath
-        ptn = r"/\.(_|DS_Store|Spotlight-|fseventsd|Trashes|AppleDouble)|/__MACOS"
-        if re.search(ptn, vp):
+        if re.search(APPLESAN_RE, vp):
             zt = '<?xml version="1.0" encoding="utf-8"?>\n<D:error xmlns:D="DAV:"><D:lock-token-submitted><D:href>{}</D:href></D:lock-token-submitted></D:error>'
             zb = zt.format(vp).encode("utf-8", "replace")
             self.reply(zb, 423, "text/xml; charset=utf-8")
@@ -3396,7 +3396,7 @@ class HttpCli(object):
             pt = "404 not found  ┐( ´ -`)┌"
 
         if self.ua.startswith("curl/") or self.ua.startswith("fetch"):
-            pt = "# acct: %s\n%s" % (self.uname, pt)
+            pt = "# acct: %s\n%s\n" % (self.uname, pt)
             self.reply(pt.encode("utf-8"), status=rc)
             return True
 

copyparty/util.py

@@ -343,6 +343,11 @@ CMD_EXEB = set(_exestr.encode("utf-8").split())
 CMD_EXES = set(_exestr.split())
 
 
+# mostly from https://github.com/github/gitignore/blob/main/Global/macOS.gitignore
+APPLESAN_TXT = r"/(__MACOS|Icon\r\r)|/\.(_|DS_Store|AppleDouble|LSOverride|DocumentRevisions-|fseventsd|Spotlight-|TemporaryItems|Trashes|VolumeIcon\.icns|com\.apple\.timemachine\.donotpresent|AppleDB|AppleDesktop|apdisk)"
+APPLESAN_RE = re.compile(APPLESAN_TXT)
+
+
 pybin = sys.executable or ""
 if EXE:
     pybin = ""