nixpkgs/pkgs/applications/networking/browsers/tor-browser-bundle-bin/default.nix

407 lines
13 KiB
Nix

{ stdenv
, fetchurl
, makeDesktopItem
# Common run-time dependencies
, zlib
# libxul run-time dependencies
, atk
, cairo
, dbus
, dbus-glib
, fontconfig
, freetype
, gdk-pixbuf
, glib
, gtk3
, libxcb
, libX11
, libXext
, libXrender
, libXt
, pango
, audioSupport ? mediaSupport
, pulseaudioSupport ? false
, libpulseaudio
, apulse
# Media support (implies audio support)
, mediaSupport ? false
, ffmpeg
, gmp
# Pluggable transport dependencies
, python27
# Wrapper runtime
, coreutils
, glibcLocales
, gnome3
, runtimeShell
, shared-mime-info
, gsettings-desktop-schemas
# Hardening
, graphene-hardened-malloc
, useHardenedMalloc ? graphene-hardened-malloc != null && builtins.elem stdenv.system graphene-hardened-malloc.meta.platforms
# Whether to disable multiprocess support to work around crashing tabs
# TODO: fix the underlying problem instead of this terrible work-around
, disableContentSandbox ? true
# Extra preferences
, extraPrefs ? ""
# For meta
, tor-browser-bundle
}:
with stdenv.lib;
let
libPath = makeLibraryPath libPkgs;
libPkgs = [
atk
cairo
dbus
dbus-glib
fontconfig
freetype
gdk-pixbuf
glib
gtk3
libxcb
libX11
libXext
libXrender
libXt
pango
stdenv.cc.cc
stdenv.cc.libc
zlib
]
++ optionals pulseaudioSupport [ libpulseaudio ]
++ optionals mediaSupport [
ffmpeg
];
# Library search path for the fte transport
fteLibPath = makeLibraryPath [ stdenv.cc.cc gmp ];
# Upstream source
version = "9.0.2";
lang = "en-US";
srcs = {
x86_64-linux = fetchurl {
url = "https://dist.torproject.org/torbrowser/${version}/tor-browser-linux64-${version}_${lang}.tar.xz";
sha256 = "1xdnqphsj7wzwyv927jwd3fi36srx0minydwl5jg5yyd3m3if9hb";
};
i686-linux = fetchurl {
url = "https://dist.torproject.org/torbrowser/${version}/tor-browser-linux32-${version}_${lang}.tar.xz";
sha256 = "1qk9fg5dvyyvbngsqla00by8a974mpvq9pnm2djif54lr2nfivwf";
};
};
in
stdenv.mkDerivation rec {
pname = "tor-browser-bundle-bin";
inherit version;
src = srcs.${stdenv.hostPlatform.system} or (throw "unsupported system: ${stdenv.hostPlatform.system}");
preferLocalBuild = true;
allowSubstitutes = false;
desktopItem = makeDesktopItem {
name = "torbrowser";
exec = "tor-browser";
icon = "torbrowser";
desktopName = "Tor Browser";
genericName = "Web Browser";
comment = meta.description;
categories = "Network;WebBrowser;Security;";
};
buildCommand = ''
# For convenience ...
TBB_IN_STORE=$out/share/tor-browser
interp=$(< $NIX_CC/nix-support/dynamic-linker)
# Unpack & enter
mkdir -p "$TBB_IN_STORE"
tar xf "${src}" -C "$TBB_IN_STORE" --strip-components=2
pushd "$TBB_IN_STORE"
# Set ELF interpreter
for exe in firefox.real TorBrowser/Tor/tor ; do
echo "Setting ELF interpreter on $exe ..." >&2
patchelf --set-interpreter "$interp" "$exe"
done
# firefox is a wrapper that checks for a more recent libstdc++ & appends it to the ld path
mv firefox.real firefox
# The final libPath. Note, we could split this into firefoxLibPath
# and torLibPath for accuracy, but this is more convenient ...
libPath=${libPath}:$TBB_IN_STORE:$TBB_IN_STORE/TorBrowser/Tor
# apulse uses a non-standard library path. For now special-case it.
${optionalString (audioSupport && !pulseaudioSupport) ''
libPath=${apulse}/lib/apulse:$libPath
''}
# Fixup paths to pluggable transports.
sed -i TorBrowser/Data/Tor/torrc-defaults \
-e "s,./TorBrowser,$TBB_IN_STORE/TorBrowser,g"
# Fixup obfs transport. Work around patchelf failing to set
# interpreter for pre-compiled Go binaries by invoking the interpreter
# directly.
sed -i TorBrowser/Data/Tor/torrc-defaults \
-e "s|\(ClientTransportPlugin meek_lite,obfs2,obfs3,obfs4,scramblesuit\) exec|\1 exec $interp|"
# Similarly fixup snowflake
sed -i TorBrowser/Data/Tor/torrc-defaults \
-e "s|\(ClientTransportPlugin snowflake\) exec|\1 exec $interp|"
# Prepare for autoconfig.
#
# See https://developer.mozilla.org/en-US/Firefox/Enterprise_deployment
cat >defaults/pref/autoconfig.js <<EOF
//
pref("general.config.filename", "mozilla.cfg");
pref("general.config.obscure_value", 0);
EOF
# Hard-coded Firefox preferences.
cat >mozilla.cfg <<EOF
// First line must be a comment
// Always update via Nixpkgs
lockPref("app.update.auto", false);
lockPref("app.update.enabled", false);
lockPref("extensions.update.autoUpdateDefault", false);
lockPref("extensions.update.enabled", false);
lockPref("extensions.torbutton.versioncheck_enabled", false);
// User should never change these. Locking prevents these
// values from being written to prefs.js, avoiding Store
// path capture.
lockPref("extensions.torlauncher.torrc-defaults_path", "$TBB_IN_STORE/TorBrowser/Data/Tor/torrc-defaults");
lockPref("extensions.torlauncher.tor_path", "$TBB_IN_STORE/TorBrowser/Tor/tor");
// Reset pref that captures store paths.
clearPref("extensions.xpiState");
// Stop obnoxious first-run redirection.
lockPref("noscript.firstRunRedirection", false);
// Insist on using IPC for communicating with Tor
//
// Defaults to creating \$TBB_HOME/TorBrowser/Data/Tor/{socks,control}.socket
lockPref("extensions.torlauncher.control_port_use_ipc", true);
lockPref("extensions.torlauncher.socks_port_use_ipc", true);
// Optionally disable multiprocess support. We always set this to ensure that
// toggling the pref takes effect.
lockPref("browser.tabs.remote.autostart.2", ${if disableContentSandbox then "false" else "true"});
// Allow sandbox access to sound devices if using ALSA directly
${if (audioSupport && !pulseaudioSupport) then ''
pref("security.sandbox.content.write_path_whitelist", "/dev/snd/");
'' else ''
clearPref("security.sandbox.content.write_path_whitelist");
''}
${optionalString (extraPrefs != "") ''
${extraPrefs}
''}
EOF
# Hard-code path to TBB fonts; see also FONTCONFIG_FILE in
# the wrapper below.
FONTCONFIG_FILE=$TBB_IN_STORE/TorBrowser/Data/fontconfig/fonts.conf
sed -i "$FONTCONFIG_FILE" \
-e "s,<dir>fonts</dir>,<dir>$TBB_IN_STORE/fonts</dir>,"
# Preload extensions by moving into the runtime instead of storing under the
# user's profile directory.
mkdir -p "$TBB_IN_STORE/browser/extensions"
mv "$TBB_IN_STORE/TorBrowser/Data/Browser/profile.default/extensions/"* \
"$TBB_IN_STORE/browser/extensions"
# Hard-code paths to geoip data files. TBB resolves the geoip files
# relative to torrc-defaults_path but if we do not hard-code them
# here, these paths end up being written to the torrc in the user's
# state dir.
cat >>TorBrowser/Data/Tor/torrc-defaults <<EOF
GeoIPFile $TBB_IN_STORE/TorBrowser/Data/Tor/geoip
GeoIPv6File $TBB_IN_STORE/TorBrowser/Data/Tor/geoip6
EOF
WRAPPER_LD_PRELOAD=${optionalString useHardenedMalloc
"${graphene-hardened-malloc}/lib/libhardened_malloc.so"}
WRAPPER_XDG_DATA_DIRS=${concatMapStringsSep ":" (x: "${x}/share") [
gnome3.adwaita-icon-theme
shared-mime-info
]}
WRAPPER_XDG_DATA_DIRS+=":"${concatMapStringsSep ":" (x: "${x}/share/gsettings-schemas/${x.name}") [
glib
gsettings-desktop-schemas
gtk3
]};
# Generate wrapper
mkdir -p $out/bin
cat > "$out/bin/tor-browser" << EOF
#! ${runtimeShell}
set -o errexit -o nounset
PATH=${makeBinPath [ coreutils ]}
export LC_ALL=C
export LOCALE_ARCHIVE=${glibcLocales}/lib/locale/locale-archive
# Enter local state directory.
REAL_HOME=\$HOME
TBB_HOME=\''${TBB_HOME:-''${XDG_DATA_HOME:-\$REAL_HOME/.local/share}/tor-browser}
HOME=\$TBB_HOME
mkdir -p "\$HOME"
cd "\$HOME"
# Initialize empty TBB local state directory hierarchy. We
# intentionally mirror the layout that TBB would see if executed from
# the unpacked bundle dir.
mkdir -p "\$HOME/TorBrowser" "\$HOME/TorBrowser/Data"
# Initialize the Tor data directory.
mkdir -p "\$HOME/TorBrowser/Data/Tor"
# TBB will fail if ownership is too permissive
chmod 0700 "\$HOME/TorBrowser/Data/Tor"
# Initialize the browser profile state. Note that the only data
# copied from the Store payload is the initial bookmark file, which is
# never updated once created. All other files under user's profile
# dir are generated by TBB.
mkdir -p "\$HOME/TorBrowser/Data/Browser/profile.default"
cp -u --no-preserve=mode,owner "$TBB_IN_STORE/TorBrowser/Data/Browser/profile.default/bookmarks.html" \
"\$HOME/TorBrowser/Data/Browser/profile.default/bookmarks.html"
# Clear out some files that tend to capture store references but are
# easily generated by firefox at startup.
rm -f "\$HOME/TorBrowser/Data/Browser/profile.default"/{addonStartup.json.lz4,compatibility.ini,extensions.ini,extensions.json}
rm -f "\$HOME/TorBrowser/Data/Browser/profile.default"/startupCache/*
# XDG
: "\''${XDG_RUNTIME_DIR:=/run/user/\$(id -u)}"
: "\''${XDG_CONFIG_HOME:=\$REAL_HOME/.config}"
${optionalString pulseaudioSupport ''
# Figure out some envvars for pulseaudio
: "\''${PULSE_SERVER:=\$XDG_RUNTIME_DIR/pulse/native}"
: "\''${PULSE_COOKIE:=\$XDG_CONFIG_HOME/pulse/cookie}"
''}
# Font cache files capture store paths; clear them out on the off
# chance that TBB would continue using old font files.
rm -rf "\$HOME/.cache/fontconfig"
# Lift-off
#
# XAUTHORITY and DISPLAY are required for TBB to work at all.
#
# DBUS_SESSION_BUS_ADDRESS is inherited to avoid auto-launch; to
# prevent that, set it to an empty/invalid value prior to running
# tor-browser.
#
# PULSE_SERVER is necessary for audio playback.
#
# Setting FONTCONFIG_FILE is required to make fontconfig read the TBB
# fonts.conf; upstream uses FONTCONFIG_PATH, but FC_DEBUG=1024
# indicates the system fonts.conf being used instead.
#
# XDG_DATA_DIRS is set to prevent searching system dirs (looking for .desktop & icons)
exec env -i \
LD_PRELOAD=$WRAPPER_LD_PRELOAD \
\
TZ=":" \
TZDIR="\''${TZDIR:-}" \
LOCALE_ARCHIVE="\$LOCALE_ARCHIVE" \
\
TMPDIR="\''${TMPDIR:-/tmp}" \
HOME="\$HOME" \
XAUTHORITY="\''${XAUTHORITY:-\$HOME/.Xauthority}" \
DISPLAY="\$DISPLAY" \
DBUS_SESSION_BUS_ADDRESS="\''${DBUS_SESSION_BUS_ADDRESS:-unix:path=\$XDG_RUNTIME_DIR/bus}" \\
\
XDG_DATA_HOME="\$HOME/.local/share" \
XDG_DATA_DIRS="$WRAPPER_XDG_DATA_DIRS" \
\
PULSE_SERVER="\''${PULSE_SERVER:-}" \
PULSE_COOKIE="\''${PULSE_COOKIE:-}" \
\
APULSE_PLAYBACK_DEVICE="\''${APULSE_PLAYBACK_DEVICE:-plug:dmix}" \
\
TOR_SKIP_LAUNCH="\''${TOR_SKIP_LAUNCH:-}" \
TOR_CONTROL_PORT="\''${TOR_CONTROL_PORT:-}" \
TOR_SOCKS_PORT="\''${TOR_SOCKS_PORT:-}" \
\
FONTCONFIG_FILE="$FONTCONFIG_FILE" \
\
LD_LIBRARY_PATH="$libPath" \
\
"$TBB_IN_STORE/firefox" \
--class "Tor Browser" \
-no-remote \
-profile "\$HOME/TorBrowser/Data/Browser/profile.default" \
"\''${@}"
EOF
chmod +x $out/bin/tor-browser
# Easier access to docs
mkdir -p $out/share/doc
ln -s $TBB_IN_STORE/TorBrowser/Docs $out/share/doc/tor-browser
# Install .desktop item
mkdir -p $out/share/applications
cp $desktopItem/share/applications"/"* $out/share/applications
sed -i $out/share/applications/torbrowser.desktop \
-e "s,Exec=.*,Exec=$out/bin/tor-browser," \
-e "s,Icon=.*,Icon=tor-browser,"
for i in 16 32 48 64 128; do
mkdir -p $out/share/icons/hicolor/''${i}x''${i}/apps/
ln -s $out/share/tor-browser/browser/chrome/icons/default/default$i.png $out/share/icons/hicolor/''${i}x''${i}/apps/tor-browser.png
done
# Check installed apps
echo "Checking bundled Tor ..."
LD_LIBRARY_PATH=$libPath $TBB_IN_STORE/TorBrowser/Tor/tor --version >/dev/null
echo "Checking tor-browser wrapper ..."
DISPLAY="" XAUTHORITY="" DBUS_SESSION_BUS_ADDRESS="" TBB_HOME=$(mktemp -d) \
$out/bin/tor-browser --version >/dev/null
'';
meta = with stdenv.lib; {
description = "Tor Browser Bundle built by torproject.org";
longDescription = tor-browser-bundle.meta.longDescription;
homepage = "https://www.torproject.org/";
platforms = attrNames srcs;
maintainers = with maintainers; [ offline matejc doublec thoughtpolice joachifm hax404 cap ];
hydraPlatforms = [];
# MPL2.0+, GPL+, &c. While it's not entirely clear whether
# the compound is "libre" in a strict sense (some components place certain
# restrictions on redistribution), it's free enough for our purposes.
license = licenses.free;
};
}