118 lines
4.1 KiB
Nix
118 lines
4.1 KiB
Nix
{ stdenv
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, jshon
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, enablePepperFlash ? false
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, enableWideVine ? false
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, upstream-info
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}:
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with stdenv.lib;
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let
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# Generate a shell fragment that emits flags appended to the
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# final makeWrapper call for wrapping the browser's main binary.
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#
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# Note that this is shell-escaped so that only the variable specified
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# by the "output" attribute is substituted.
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mkPluginInfo = { output ? "out", allowedVars ? [ output ]
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, flags ? [], envVars ? {}
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}: let
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shSearch = ["'"] ++ map (var: "@${var}@") allowedVars;
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shReplace = ["'\\''"] ++ map (var: "'\"\${${var}}\"'") allowedVars;
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# We need to triple-escape "val":
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# * First because makeWrapper doesn't do any quoting of its arguments by
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# itself.
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# * Second because it's passed to the makeWrapper call separated by IFS but
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# not by the _real_ arguments, for example the Widevine plugin flags
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# contain spaces, so they would end up as separate arguments.
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# * Third in order to be correctly quoted for the "echo" call below.
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shEsc = val: "'${replaceStrings ["'"] ["'\\''"] val}'";
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mkSh = val: "'${replaceStrings shSearch shReplace (shEsc val)}'";
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mkFlag = flag: ["--add-flags" (shEsc flag)];
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mkEnvVar = key: val: ["--set" (shEsc key) (shEsc val)];
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envList = mapAttrsToList mkEnvVar envVars;
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quoted = map mkSh (flatten ((map mkFlag flags) ++ envList));
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in ''
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mkdir -p "''$${output}/nix-support"
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echo ${toString quoted} > "''$${output}/nix-support/wrapper-flags"
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'';
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plugins = stdenv.mkDerivation {
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name = "chromium-binary-plugins";
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src = upstream-info.binary;
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phases = [ "unpackPhase" "patchPhase" "installPhase" "checkPhase" ];
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outputs = [ "flash" "widevine" ];
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out = "flash"; # outputs TODO: is this a hack?
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unpackCmd = let
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chan = if upstream-info.channel == "dev" then "chrome-unstable"
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else if upstream-info.channel == "stable" then "chrome"
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else "chrome-${upstream-info.channel}";
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in ''
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mkdir -p plugins
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ar p "$src" data.tar.xz | tar xJ -C plugins --strip-components=4 \
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./opt/google/${chan}/PepperFlash \
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./opt/google/${chan}/libwidevinecdm.so \
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./opt/google/${chan}/libwidevinecdmadapter.so
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'';
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doCheck = true;
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checkPhase = ''
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! find -iname '*.so' -exec ldd {} + | grep 'not found'
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'';
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patchPhase = let
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rpaths = [ stdenv.cc.cc ];
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mkrpath = p: "${makeSearchPathOutput "lib" "lib64" p}:${makeLibraryPath p}";
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in ''
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for sofile in PepperFlash/libpepflashplayer.so \
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libwidevinecdm.so libwidevinecdmadapter.so; do
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chmod +x "$sofile"
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patchelf --set-rpath "${mkrpath rpaths}" "$sofile"
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done
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patchelf --set-rpath "$widevine/lib:${mkrpath rpaths}" \
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libwidevinecdmadapter.so
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'';
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installPhase = let
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wvName = "Widevine Content Decryption Module";
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wvDescription = "Playback of encrypted HTML audio/video content";
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wvMimeTypes = "application/x-ppapi-widevine-cdm";
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wvModule = "@widevine@/lib/libwidevinecdmadapter.so";
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wvInfo = "#${wvName}#${wvDescription};${wvMimeTypes}";
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in ''
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flashVersion="$(
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"${jshon}/bin/jshon" -F PepperFlash/manifest.json -e version -u
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)"
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install -vD PepperFlash/libpepflashplayer.so \
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"$flash/lib/libpepflashplayer.so"
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${mkPluginInfo {
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output = "flash";
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allowedVars = [ "flash" "flashVersion" ];
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flags = [
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"--ppapi-flash-path=@flash@/lib/libpepflashplayer.so"
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"--ppapi-flash-version=@flashVersion@"
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];
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}}
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install -vD libwidevinecdm.so \
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"$widevine/lib/libwidevinecdm.so"
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install -vD libwidevinecdmadapter.so \
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"$widevine/lib/libwidevinecdmadapter.so"
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${mkPluginInfo {
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output = "widevine";
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flags = [ "--register-pepper-plugins=${wvModule}${wvInfo}" ];
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envVars.NIX_CHROMIUM_PLUGIN_PATH_WIDEVINE = "@widevine@/lib";
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}}
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'';
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passthru.enabled = optional enablePepperFlash plugins.flash
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++ optional enableWideVine plugins.widevine;
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};
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in plugins
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