bin/generate-key-graph new

1 files changed, 125 insertions, 0 deletions

diff --git a/bin/generate-key-graph b/bin/generate-key-graph
new file mode 100755
index 0000000..17e6bd1
--- /dev/null
+++ b/bin/generate-key-graph
@@ -0,0 +1,125 @@
+#!/bin/bash
+
+# shellcheck source=../lib/load-configuration
+. "${0%/*}/../lib/load-configuration"
+
+tmp_dir=$(mktemp -d 'tmp.generate-key-graph.XXXXXXXXXX')
+trap 'rm -rf --one-file-system "${tmp_dir}"' EXIT
+
+# shellcheck disable=SC2016
+{
+  printf 'SELECT DISTINCT '
+  printf 'REPLACE(TO_BASE64(`gpg_keys`.`public_key`),"\\n",""),'
+  printf '`gpg_keys`.`fingerprint`'
+  printf ' FROM `gpg_keys`'
+  mysql_join_gpg_keys_binary_packages
+  mysql_join_binary_packages_binary_packages_in_repositories
+  mysql_join_binary_packages_in_repositories_repositories
+  printf ' AND `repositories`.`is_on_master_mirror`;\n'
+} \
+| mysql_run_query \
+> "${tmp_dir}/packager-keys"
+
+# shellcheck disable=SC2046
+${master_mirror_rsync_command} $(
+  ls_master_mirror pool \
+  | grep '^archlinux32-keyring\(-transition\)\?\(-[^-]\+\)\{3\}\.pkg\.tar\.zst$' \
+  | sed 's#^#'"${master_mirror_rsync_directory}"'/pool/#'
+) "${tmp_dir}/"
+
+GPG='gpg --quiet --batch --no-tty --no-permission-warning --homedir='"${tmp_dir}"'/gnupg'
+
+get_user_info() {
+  ${GPG} --with-colons --list-keys "0x${fp}" \
+  | grep -m1 '^uid:' \
+  | cut -d: -f 10 \
+  | sed 's/^.*<\(\S\+\)>$/\1/'
+}
+
+expiration_color() {
+  local expiration
+  expiration=$(
+    ${GPG} --with-colons --list-keys "0x${fp}" \
+    | grep -m1 '^pub:' \
+    | cut -d: -f 7
+  )
+  if [ -z "${expiration}" ]; then
+    printf '#000000'
+    return
+  fi
+  expiration=$((
+    (expiration - $(date +%s))/60/60/24
+  ))
+  if [ ${expiration} -gt 100 ]; then
+    printf '#000000'
+  elif [ ${expiration} -gt 50 ]; then
+    printf '#808000'
+  elif [ ${expiration} -gt 25 ]; then
+    printf '#ffff00'
+  elif [ ${expiration} -gt 0 ]; then
+    printf '#ff8000'
+  else
+    printf '#ff0000'
+  fi
+}
+
+{
+  printf 'digraph "key-graph" {\n'
+  printf 'rankdir=LR;\n'
+
+  find "${tmp_dir}" -type f -name 'archlinux32-*.pkg.tar*' \
+  | while read -r keyring_package; do
+    mkdir "${tmp_dir}/gnupg"
+
+    {
+      while read -r s _; do
+        printf '%s\n' "${s}" \
+        | base64 -w0 -d
+      done \
+      <"${tmp_dir}/packager-keys"
+      bsdtar -Oxf "${keyring_package}" usr/share/pacman/keyrings/archlinux32.gpg
+    } \
+    | ${GPG} --import
+
+    all_keys=$(
+      cut -f2 \
+      < "${tmp_dir}/packager-keys"
+      bsdtar -Oxf "${keyring_package}" usr/share/pacman/keyrings/archlinux32-trusted \
+      | cut -d: -f1
+    )
+
+    while read -r _ fp; do
+      printf '"%s-%s"[label="packager key %s\\n%s",color="#0000ff",fontcolor="%s"];\n' \
+        "${keyring_package##*/}" \
+        "${fp}" \
+        "${fp:0:8}" \
+        "$(get_user_info "${fp}")" \
+        "$(expiration_color "${fp}")"
+    done \
+    <"${tmp_dir}/packager-keys"
+
+    bsdtar -Oxf "${keyring_package}" usr/share/pacman/keyrings/archlinux32-trusted \
+    | while IFS=: read -r fp _; do
+      printf '"%s-%s"[label="master key %s\\n%s",color="#00ff00",fontcolor="%s"];\n' \
+        "${keyring_package##*/}" \
+        "${fp}" \
+        "${fp:0:8}" \
+        "$(get_user_info "${fp}")" \
+        "$(expiration_color "${fp}")"
+    done
+    for key_id in ${all_keys}; do
+      ${GPG} --list-sigs --with-colons "0x${key_id}" \
+      | grep -wF "${all_keys}" \
+      | grep '^sig:' \
+      | cut -d : -f 13 \
+      | grep -vxF "${key_id}" \
+      | sed 's/^\S\+$/"'"${keyring_package##*/}"'-\0" -> "'"${keyring_package##*/}"'-'"${key_id}"'";/'
+    done \
+    | sort -u
+
+    rm -rf --one-file-system "${tmp_dir}/gnupg"
+  done
+  printf '}\n'
+} \
+| dot -Tpng \
+>"${webserver_directory}/key-graph.png"