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smaller improvments to threadwatcher

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This commit is contained in:
Alexander Bocken 2021-04-07 16:48:07 +02:00
parent e99cbf38a5
commit 5bca850d03
Signed by: Alexander
GPG Key ID: 1D237BE83F9B05E8
1 changed files with 36 additions and 13 deletions
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49
.local/bin/threadwatcher
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@ -3,7 +3,7 @@
#It uses the file name used by the uploader.
#consider using it in a cronjob intermittently with something like
#*/10 * * * * /home/<yourname>/.local/bin/threadwatcher scan
THREADWATCHER_DIR=URLFILE=${XDG_DATA_HOME-:$HOME/.local/share}/4chan_watcher
THREADWATCHER_DIR=${XDG_DATA_HOME:-$HOME/.local/share}/4chan_watcher
URLFILE="$THREADWATCHER_DIR/threads"
TMP_URLFILE=/tmp/4chan_thread_watcher_tmp$$
@ -11,11 +11,18 @@ TMP_URLFILE=/tmp/4chan_thread_watcher_tmp$$
[ -f "$URLFILE" ] || touch "$URLFILE"
scan(){
echo "SCANNING"
if [ $(wc -l "$URLFILE"| cut -d ' ' -f1) -gt 0 ]; then
echo "scanning threads..."
else
echo "no threads to watch over currently"
exit
fi
while read -r line; do
running_dls=0
url="$(echo "$line" | cut -f1)"
echo "scanning $url"
dl_location="$(echo "$line" | cut -f2)"
mkdir -p "$dl_location"
echo "downloading to $dl_location"
mkdir -p "$dl_location"
json_url="$(echo "$url" | sed -E 's/boards\.(4chan|4channel)/a.4cdn/; s/$/.json/')"
@ -27,31 +34,41 @@ scan(){
else
echo "$line" >> "$TMP_URLFILE"
fi
files_json="$(jq '.posts[] | if has("filename") then {filename: "\(.filename)\(.ext)", location: "\(.tim)\(.ext)", md5: .md5} else null end ' < /tmp/content$$ | grep -vE '^null$')"
files_json="$(jq '.posts[] | if has("filename") then {filename: "\(.no)_\(.filename)\(.ext)", location: "\(.tim)\(.ext)", md5: .md5} else null end ' < /tmp/content$$ | grep -vE '^null$')"
echo "$files_json" | jq '.filename' | tr -d '"' >> /tmp/filename$$
echo "$files_json" | jq '.location' | tr -d '"' >> /tmp/location$$
echo "$files_json" | jq '.md5' | tr -d '"' >> /tmp/md5$$
paste /tmp/filename$$ /tmp/location$$ >> /tmp/tmp$$
files="$(paste /tmp/tmp$$ /tmp/md5$$)"
rm /tmp/tmp$$ /tmp/md5$$ /tmp/location$$ /tmp/filename$$ /tmp/content$$
#echo "$files"
echo "$files" | while read -r file_line; do
filename="$(echo "$file_line" | cut -f1)"
master_location="$(echo "$file_line" | cut -f2 | tr -d '"')"
filelocation="$dl_location/$filename"
correct_md5="$(echo "$file_line" | cut -f3)"
[ -f "$filelocation" ] && slave_md5="$(openssl dgst -md5 -binary "$filelocation" | openssl enc -base64)"
board="$(echo "$url" | cut -d '/' -f4)"
file_url="https://i.4cdn.org/$board/$master_location"
mkdir -p "$dl_location"
#TODO: implement actual md5 checksum check instead of just looking whether the file exists
if [ -f "$filelocation" ]; then
if [ -f "$filelocation" ] && [ "$correct_md5" = "$slave_md5" ]; then
true
else
touch "$filelocation" #to keep atime order correct?
if [ "$correct_md5" != "$slave_md5" ] && [ -f "$filelocation" ]; then
rm "$filelocation"
echo "removed $filename because of incorrect checksum, redownloading."
fi
[ -f "$filelocation" ] ||
touch "$filelocation" #to keep atime order correct?
#limit concurrent dls
if [ $running_dls -gt 25 ]; then
wait
running_dls=0
fi
wget -q -O "$filelocation" "$file_url" &
echo downloading "$filelocation"
((running_dls=running_dls+1))
fi
done
wait
done<"$URLFILE"
mv "$TMP_URLFILE" "$URLFILE"
}
@ -61,12 +78,18 @@ case "$1" in
else
dl_location="$HOME/$3"
fi
if grep -q "^$2\t" "$URLFILE"; then
dl_location_already="$(grep "^$2\t" "$URLFILE" | cut -f2)"
if grep -qP "^$2\t" "$URLFILE"; then
dl_location_already="$(grep -P "^$2\t" "$URLFILE" | cut -f2)"
notify-send "threadwatcher" "Thread already being watched. currently downloads to $dl_location_already"
new_location="$(dmenuinput "If you want to change location of thread to download, please insert new directory now:")"
sed -i "s|$dl_location_already|$new_location" "$URLFILE|"
mv "$dl_location_already" "$new_location"
choice="$(dmenuinput "If you want to change location of thread to download, please insert new directory now:")"
if echo "$choice" | grep -qE '^/'; then
new_location="$3"
else
new_location="$HOME/$3"
fi
[ -z "$new_location" ] && exit
sed -i "s|$dl_location_already|$new_location|" "$URLFILE"
mv $dl_location_already/* "$new_location"
notify-send "threadwatcher" "already downloaded files moved to $new_location. New files will also be downloaded there"
else
printf "%s\t%s\n" "$2" "$dl_location" | tee -ai "$URLFILE"