1 files changed, 90 insertions, 0 deletions
diff --git a/tools/rust-crates-advisory/default.nix b/tools/rust-crates-advisory/default.nix
new file mode 100644
index 000000000000..c0cd4dc03e05
--- /dev/null
+++ b/tools/rust-crates-advisory/default.nix
@@ -0,0 +1,90 @@
+{ depot, pkgs, lib, ... }:
+
+let
+
+  bins =
+       depot.nix.getBins pkgs.s6-portable-utils [ "s6-ln" "s6-cat" "s6-echo" "s6-mkdir" "s6-test" "s6-touch" ]
+    // depot.nix.getBins pkgs.lr [ "lr" ]
+    ;
+
+  crate-advisories = "${depot.third_party.rustsec-advisory-db}/crates";
+
+  our-crates = lib.filter (v: v ? outPath)
+    (builtins.attrValues depot.third_party.rust-crates);
+
+  check-security-advisory = depot.nix.writers.rustSimple {
+    name = "parse-security-advisory";
+    dependencies = [
+      depot.third_party.rust-crates.toml
+      depot.third_party.rust-crates.semver
+    ];
+  } (builtins.readFile ./check-security-advisory.rs);
+
+  # $1 is the directory with advisories for crate $2 with version $3
+  check-crate-advisory = depot.nix.writeExecline "check-crate-advisory" { readNArgs = 3; } [
+    "pipeline" [ bins.lr "-0" "-t" "depth == 1" "$1" ]
+    "forstdin" "-0" "-Eo" "0" "advisory"
+    "if" [ depot.tools.eprintf "advisory %s\n" "$advisory" ]
+    check-security-advisory "$advisory" "$3"
+  ];
+
+  # Run through everything in the `crate-advisories` repository
+  # and check whether we can parse all the advisories without crashing.
+  test-parsing-all-security-advisories = depot.nix.runExecline "check-all-our-crates" {} [
+    "pipeline" [ bins.lr "-0" "-t" "depth == 1" crate-advisories ]
+    "if" [
+      # this will succeed as long as check-crate-advisory doesn’t `panic!()` (status 101)
+      "forstdin" "-0" "-E" "-x" "101" "crate_advisories"
+      check-crate-advisory "$crate_advisories" "foo" "0.0.0"
+    ]
+    "importas" "out" "out"
+    bins.s6-touch "$out"
+  ];
+
+
+  check-all-our-crates = depot.nix.runExecline "check-all-our-crates" {
+    stdin = lib.concatStrings
+      (map
+        (crate:
+          depot.nix.netstring.fromString
+            ( depot.nix.netstring.fromString crate.crateName
+            + depot.nix.netstring.fromString crate.version ))
+        our-crates);
+  } [
+    "if" [
+      "forstdin" "-o" "0" "-Ed" "" "crateNetstring"
+      "multidefine" "-d" "" "$crateNetstring" [ "crate" "crate_version" ]
+      "if" [ depot.tools.eprintf "checking %s, version %s\n" "$crate" "$crate_version" ]
+
+      "ifthenelse" [ bins.s6-test "-d" "${crate-advisories}/\${crate}" ]
+          [ # also print the full advisory text if it matches
+            "export" "PRINT_ADVISORY" "1"
+            check-crate-advisory "${crate-advisories}/\${crate}" "$crate" "$crate_version"
+          ]
+        [ depot.tools.eprintf "No advisories found for crate %s\n" "$crate" ]
+        "importas" "-ui" "ret" "?"
+        # put a marker in ./failed to read at the end
+        "ifelse" [ bins.s6-test "$ret" "-eq" "1" ]
+          [ bins.s6-touch "./failed" ]
+        "if" [ depot.tools.eprintf "\n" ]
+        "exit" "$ret"
+    ]
+    "ifelse" [ bins.s6-test "-f" "./failed" ]
+      [ "if" [ depot.tools.eprintf "Error: Found active advisories!" ]
+        "exit" "1"
+      ]
+    "importas" "out" "out"
+    bins.s6-touch "$out"
+  ];
+
+in depot.nix.readTree.drvTargets {
+
+  check-all-our-crates =
+    depot.nix.drvSeqL
+      [ test-parsing-all-security-advisories ]
+      check-all-our-crates;
+
+  inherit
+    check-crate-advisory
+    ;
+}