nixpkgs/pkgs/tools/security/tor/update.nix

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{ lib
, writeScript
, common-updater-scripts
, bash
, coreutils
, curl
, gnugrep
, gnupg
, gnused
, nix
}:
with lib;
let
downloadPageUrl = "https://dist.torproject.org";
# See https://www.torproject.org/docs/signing-keys.html
signingKeys = [
# Roger Dingledine
"B117 2656 DFF9 83C3 042B C699 EB5A 896A 2898 8BF5"
"F65C E37F 04BA 5B36 0AE6 EE17 C218 5258 19F7 8451"
# Nick Mathewson
"2133 BC60 0AB1 33E1 D826 D173 FE43 009C 4607 B1FB"
"B117 2656 DFF9 83C3 042B C699 EB5A 896A 2898 8BF5"
];
in
writeScript "update-tor" ''
#! ${bash}/bin/bash
set -eu -o pipefail
export PATH=${makeBinPath [
common-updater-scripts
coreutils
curl
gnugrep
gnupg
gnused
nix
]}
srcBase=$(curl -L --list-only -- "${downloadPageUrl}" \
| grep -Eo 'tor-([[:digit:]]+\.?)+\.tar\.gz' \
| sort -Vu \
| tail -n1)
srcFile=$srcBase
srcUrl=${downloadPageUrl}/$srcBase
srcName=''${srcBase/.tar.gz/}
srcVers=(''${srcName//-/ })
version=''${srcVers[1]}
sigUrl=$srcUrl.asc
sigFile=''${sigUrl##*/}
# upstream does not support byte ranges ...
[[ -e "$srcFile" ]] || curl -L -o "$srcFile" -- "$srcUrl"
[[ -e "$sigFile" ]] || curl -L -o "$sigFile" -- "$sigUrl"
export GNUPGHOME=$PWD/gnupg
mkdir -m 700 -p "$GNUPGHOME"
gpg --batch --recv-keys ${concatStringsSep " " (map (x: "'${x}'") signingKeys)}
gpg --batch --verify "$sigFile" "$srcFile"
sha256=$(nix-hash --type sha256 --flat --base32 "$srcFile")
update-source-version tor "$version" "$sha256"
''