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https://github.com/NixOS/nixpkgs.git
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3cd8ce3bce
Naive concatenation of $LD_LIBRARY_PATH can result in an empty colon-delimited segment; this tells glibc to load libraries from the current directory, which is definitely wrong, and may be a security vulnerability if the current directory is untrusted. (See #67234, for example.) Fix this throughout the tree. Signed-off-by: Anders Kaseorg <andersk@mit.edu>
103 lines
3.6 KiB
Nix
103 lines
3.6 KiB
Nix
# The actual Plex package that we run is a FHS userenv of the "raw" package.
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{ stdenv
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, buildFHSUserEnv
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, writeScript
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, plexRaw
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# Old argument for overriding the Plex data directory; not used for this
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# version of Plex, but still around for backwards-compatibility.
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, dataDir ? "/var/lib/plex"
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}:
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buildFHSUserEnv {
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name = "plexmediaserver";
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inherit (plexRaw) meta;
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# This script is run when we start our Plex binary
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runScript = writeScript "plex-run-script" ''
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#!${stdenv.shell}
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set -eu
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# The root path to our Plex installation
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root=${plexRaw}/lib/plexmediaserver
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# Path to where we're storing our Plex data files. We default to storing
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# them in the user's home directory under the XDG-compatible location, but
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# allow overriding with an environment variable so the location can be
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# configured in our NixOS module.
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#
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# NOTE: the old version of Plex used /var/lib/plex as the default location,
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# but this package shouldn't assume that we're going to run Plex with the
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# ability to write to /var/lib, so using a subdirectory of $HOME when none
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# is specified feels less likely to have permission errors.
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if [[ -z "''${PLEX_DATADIR:-}" ]]; then
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PLEX_DATADIR="$HOME/.local/share/plex"
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fi
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if [[ ! -d "$PLEX_DATADIR" ]]; then
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echo "Creating Plex data directory: $PLEX_DATADIR"
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mkdir -p "$PLEX_DATADIR"
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fi
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# The database is stored under the given directory
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db="$PLEX_DATADIR/.skeleton/com.plexapp.plugins.library.db"
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# If we don't have a database in the expected path, then create one by
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# copying our base database to that location.
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if ! test -f "$db"; then
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echo "Copying base database file to: $db"
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mkdir -p "$(dirname "$db")"
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cat "${plexRaw.basedb}" > "$db"
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fi
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# Set up symbolic link at '/db', which is linked to by our Plex package
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# (see the 'plexRaw' package).
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ln -s "$db" /db
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# If we have a plugin list (set by our NixOS module), we create plugins in
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# the data directory as expected. This is a colon-separated list of paths.
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if [[ -n "''${PLEX_PLUGINS:-}" ]]; then
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echo "Preparing plugin directory"
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pluginDir="$PLEX_DATADIR/Plex Media Server/Plug-ins"
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test -d "$pluginDir" || mkdir -p "$pluginDir"
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# First, remove all of the symlinks in the plugins directory.
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echo "Removing old symlinks"
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for f in $(ls "$pluginDir/"); do
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if [[ -L "$pluginDir/$f" ]]; then
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echo "Removing plugin symlink: $pluginDir/$f"
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rm "$pluginDir/$f"
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fi
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done
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echo "Symlinking plugins"
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IFS=':' read -ra pluginsArray <<< "$PLEX_PLUGINS"
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for path in "''${pluginsArray[@]}"; do
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dest="$pluginDir/$(basename "$path")"
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if [[ ! -d "$path" ]]; then
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echo "Error symlinking plugin from $path: no such directory"
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elif [[ -d "$dest" || -L "$dest" ]]; then
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echo "Error symlinking plugin from $path to $dest: file or directory already exists"
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else
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echo "Symlinking plugin at: $path"
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ln -s "$path" "$dest"
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fi
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done
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fi
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# Tell Plex to use the data directory as the "Application Support"
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# directory, otherwise it tries to write things into the user's home
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# directory.
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export PLEX_MEDIA_SERVER_APPLICATION_SUPPORT_DIR="$PLEX_DATADIR"
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# Tell Plex where the 'home' directory for itself is.
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export PLEX_MEDIA_SERVER_HOME="${plexRaw}/lib/plexmediaserver"
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# Actually run Plex, prepending LD_LIBRARY_PATH with the libraries from
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# the Plex package.
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LD_LIBRARY_PATH=$LD_LIBRARY_PATH''${LD_LIBRARY_PATH:+:}$root exec "$root/Plex Media Server"
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'';
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}
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