[Feature request] add selfhosted webinterface for jdownloader

[milahu]

Idea

the java gui is too ugly / too heavy for my taste and the VNC tunnel does not make it better

so i scraped the webapp at my.jdownloader.org and made it work on localhost in my myjdownloader to get a selfhosted webinterface for jdownloader

see also My.JDownloader over localhost local web interface on LAN

one problem is that my.jdownloader.org is closed-source so this would require some maintenance to keep it working

im running jdownloader in bubblewrap which is more lightweight than docker

jdownloader-install-and-run.sh

```sh #!/usr/bin/env bash dir="$(dirname "$0")" src="https://github.com/milahu/jdownloader-installed" # TODO better? ~/.cache? ~/.local? ~/.jdownloader? dst="$HOME/.config/jdownloader" if ! [ -e "$dst" ]; then echo "creating $dst" git clone --depth=1 "$src" "$dst" else echo "keeping $dst" fi # patch jdownloader # dont require MyJDownloader login for headless mode # so we can run our own MyJDownloader service "$dir"/jdownloader-patch-core.sh "$dst" # https://my.jdownloader.org/developers/ # My.JDownloader API Documentation # Pro Tip: It's possible to access the JDownloader API directly (Bypass our server) # by enabling the so called 'Deprecated API' in the Advanced Options. # -> jd will listen on port 3128 -> http://localhost:3128/help cfg="$dst"/cfg/org.jdownloader.api.RemoteAPIConfig.json if [ "$(cat "$cfg" | jq -r .deprecatedapienabled)" = "false" ]; then cat "$cfg" | jq -c '. * { "deprecatedapienabled": true }' | sponge "$cfg" fi jre=$(nix-build --no-out-link '' -A jre) bubblewrap=$(nix-build --no-out-link '' -A bubblewrap) a=($bubblewrap/bin/bwrap) # FIXME add only required /nix/store paths a+=(--ro-bind /nix /nix) # TODO better a+=(--proc /proc) a+=(--dev /dev) a+=(--unshare-pid) # ? a+=(--new-session) # ? a+=(--unshare-all) a+=(--share-net) a+=(--ro-bind /etc/resolv.conf /etc/resolv.conf) a+=(--die-with-parent) #a+=(--dir /run/user/$UID) # tmpfs #a+=(--dir "$dst") # give access to JDownloader.jar etc a+=(--bind "$dst" "$dst") # give access to JDownloader.jar etc a+=(--bind "$HOME/Downloads/jdownloader" "/output") # give access to JDownloader.jar etc #a+=() a+=($jre/bin/java) # see also # https://aur.archlinux.org/cgit/aur.git/tree/JDownloaderHeadless?h=jdownloader2 # headless mode requires username and password in # $dst/cfg/org.jdownloader.api.myjdownloader.MyJDownloaderSettings.json a+=(-Djava.awt.headless=true) a+=(-jar "$dst/JDownloader.jar") # no. with "-norestart" jd does not restart after update #a+=(-norestart) set -x exec "${a[@]}" ```

running jdownloader in headless mode without a my.jdownloader.org account requires binary patching of the Core.jar file

jdownloader-patch-core.sh

```sh #!/usr/bin/env bash # patch jdownloader # dont require MyJDownloader login for headless mode # based on # https://github.com/NixOS/nixpkgs/pull/136998/files#r720864456 set -eux recaf=$(NIXPKGS_ALLOW_UNFREE=1 nix-build --no-out-link '' -A nur.repos.milahu.recaf-bin) export PATH="$recaf/bin:$PATH" now=$(date --utc +%Y%m%dT%H%M%SZ) jdownloader_path="$HOME/.config/jdownloader" if [ $# != 0 ]; then jdownloader_path="$1" fi jar_path="$jdownloader_path/Core.jar" bak_jar_path="$jar_path.bak.$now" class="org/jdownloader/api/myjdownloader/MyJDownloaderController" method="isAlwaysConnectRequired()Z" # note: no whitespace in paths temp_base=/run/user/$UID/recaf-jdownloader-MyJDownloaderController-isAlwaysConnectRequired asm_path=$temp_base.asm recaf_script_path=$temp_base.recaf temp_jar_path=$temp_base.patched.jar # disassemble the method to patch cat >$recaf_script_path <$recaf_script_path <