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path: root/pkgs/applications/networking/browsers/firefox-bin/default.nix
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{ lib, stdenv, fetchurl, config, wrapGAppsHook, autoPatchelfHook
, alsa-lib
, curl
, dbus-glib
, gtk3
, libXtst
, libva
, pciutils
, pipewire
, adwaita-icon-theme
, channel
, generated
, writeScript
, writeText
, xidel
, coreutils
, gnused
, gnugrep
, gnupg
, runtimeShell
, systemLocale ? config.i18n.defaultLocale or "en_US"
, patchelfUnstable  # have to use patchelfUnstable to support --no-clobber-old-sections
}:

let

  inherit (generated) version sources;

  binaryName = if channel == "release" then "firefox" else "firefox-${channel}";

  mozillaPlatforms = {
    i686-linux = "linux-i686";
    x86_64-linux = "linux-x86_64";
  };

  arch = mozillaPlatforms.${stdenv.hostPlatform.system};

  isPrefixOf = prefix: string:
    builtins.substring 0 (builtins.stringLength prefix) string == prefix;

  sourceMatches = locale: source:
      (isPrefixOf source.locale locale) && source.arch == arch;

  policies = {
    DisableAppUpdate = true;
  } // config.firefox.policies or {};

  policiesJson = writeText "firefox-policies.json" (builtins.toJSON { inherit policies; });

  defaultSource = lib.findFirst (sourceMatches "en-US") {} sources;

  mozLocale =
    if systemLocale == "ca_ES@valencia"
    then "ca-valencia"
    else lib.replaceStrings ["_"] ["-"] systemLocale;

  source = lib.findFirst (sourceMatches mozLocale) defaultSource sources;

  pname = "firefox-${channel}-bin-unwrapped";
in

stdenv.mkDerivation {
  inherit pname version;

  src = fetchurl { inherit (source) url sha256; };

  nativeBuildInputs = [ wrapGAppsHook autoPatchelfHook patchelfUnstable ];
  buildInputs = [
    gtk3
    adwaita-icon-theme
    alsa-lib
    dbus-glib
    libXtst
  ];
  runtimeDependencies = [
    curl
    libva.out
    pciutils
  ];
  appendRunpaths = [
    "${pipewire}/lib"
  ];
  # Firefox uses "relrhack" to manually process relocations from a fixed offset
  patchelfFlags = [ "--no-clobber-old-sections" ];

  installPhase =
    ''
      mkdir -p "$prefix/lib/firefox-bin-${version}"
      cp -r * "$prefix/lib/firefox-bin-${version}"

      mkdir -p "$out/bin"
      ln -s "$prefix/lib/firefox-bin-${version}/firefox" "$out/bin/${binaryName}"

      # See: https://github.com/mozilla/policy-templates/blob/master/README.md
      mkdir -p "$out/lib/firefox-bin-${version}/distribution";
      ln -s ${policiesJson} "$out/lib/firefox-bin-${version}/distribution/policies.json";
    '';

  passthru = {
    inherit binaryName;
    libName = "firefox-bin-${version}";
    ffmpegSupport = true;
    gssSupport = true;
    gtk3 = gtk3;

    # update with:
    # $ nix-shell maintainers/scripts/update.nix --argstr package firefox-bin-unwrapped
    updateScript = import ./update.nix {
      inherit pname channel lib writeScript xidel coreutils gnused gnugrep gnupg curl runtimeShell;
      baseUrl =
        if channel == "devedition"
          then "https://archive.mozilla.org/pub/devedition/releases/"
          else "https://archive.mozilla.org/pub/firefox/releases/";
    };
  };

  meta = with lib; {
    changelog = "https://www.mozilla.org/en-US/firefox/${version}/releasenotes/";
    description = "Mozilla Firefox, free web browser (binary package)";
    homepage = "https://www.mozilla.org/firefox/";
    license = licenses.mpl20;
    sourceProvenance = with sourceTypes; [ binaryNativeCode ];
    platforms = builtins.attrNames mozillaPlatforms;
    hydraPlatforms = [];
    maintainers = with maintainers; [ taku0 lovesegfault ];
    mainProgram = binaryName;
  };
}