2019-03-07 00:50:43 +01:00
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{ stdenv, fetchurl, dpkg }:
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stdenv.mkDerivation rec {
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pname = "fx_cast_bridge";
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2020-02-28 06:59:14 +01:00
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version = "0.0.6";
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2019-03-07 00:50:43 +01:00
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src = fetchurl {
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2019-09-07 20:12:20 +02:00
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url = "https://github.com/hensm/fx_cast/releases/download/v${version}/${pname}-${version}-x64.deb";
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2020-02-28 06:59:14 +01:00
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sha256 = "1mjpwd27b0cpigz4cc2mdl97d78rj5ikn2bqfdic50lqjciaqi1b";
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2019-03-07 00:50:43 +01:00
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};
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nativeBuildInputs = [ dpkg ];
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unpackPhase = ''
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runHook preUnpack
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2019-08-20 14:02:46 +02:00
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dpkg-deb -xv $src ./
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2019-03-07 00:50:43 +01:00
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runHook postUnpack
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'';
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dontBuild = true;
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dontPatchELF = true;
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installPhase = ''
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2019-09-07 20:12:20 +02:00
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install -DT {opt/fx_cast,$out/bin}/${pname}
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install -DT {usr,$out}/lib/mozilla/native-messaging-hosts/${pname}.json
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2019-03-07 00:50:43 +01:00
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2019-09-07 20:12:20 +02:00
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substituteInPlace $out/lib/mozilla/native-messaging-hosts/${pname}.json \
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--replace {/opt/fx_cast,$out/bin}/${pname}
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2019-03-07 00:50:43 +01:00
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'';
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# See now-cli/default.nix
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dontStrip = true;
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preFixup = let
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2019-08-20 15:54:26 +02:00
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libPath = stdenv.lib.makeLibraryPath [stdenv.cc.cc stdenv.cc.libc];
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2019-09-07 20:12:20 +02:00
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bin = "$out/bin/${pname}";
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2019-03-07 00:50:43 +01:00
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in ''
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orig_size=$(stat --printf=%s ${bin})
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patchelf --set-interpreter "${stdenv.cc.bintools.dynamicLinker}" ${bin}
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patchelf --set-rpath ${libPath} ${bin}
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chmod +x ${bin}
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new_size=$(stat --printf=%s ${bin})
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###### zeit-pkg fixing starts here.
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# we're replacing plaintext js code that looks like
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# PAYLOAD_POSITION = '1234 ' | 0
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# [...]
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# PRELUDE_POSITION = '1234 ' | 0
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# ^-----20-chars-----^^------22-chars------^
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# ^-- grep points here
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#
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# var_* are as described above
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# shift_by seems to be safe so long as all patchelf adjustments occur
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# before any locations pointed to by hardcoded offsets
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var_skip=20
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var_select=22
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shift_by=$(expr $new_size - $orig_size)
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function fix_offset {
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# $1 = name of variable to adjust
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location=$(grep -obUam1 "$1" ${bin} | cut -d: -f1)
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location=$(expr $location + $var_skip)
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value=$(dd if=${bin} iflag=count_bytes,skip_bytes skip=$location \
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bs=1 count=$var_select status=none)
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value=$(expr $shift_by + $value)
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echo -n $value | dd of=${bin} bs=1 seek=$location conv=notrunc
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}
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fix_offset PAYLOAD_POSITION
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fix_offset PRELUDE_POSITION
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'';
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meta = with stdenv.lib; {
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description = "Implementation of the Chrome Sender API (Chromecast) within Firefox";
|
2020-04-01 03:11:51 +02:00
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homepage = "https://hensm.github.io/fx_cast/";
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2019-03-07 00:50:43 +01:00
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license = licenses.mit;
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maintainers = with maintainers; [ dtzWill ];
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};
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}
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