Squashed 'cgilite/' changes from c207699..80b3d8c
[confetti] / session.sh
index 93cc2f4..b9cef4d 100755 (executable)
@@ -3,6 +3,13 @@
 [ -n "$include_session" ] && return 0
 include_session="$0"
 
+if ! which uuencode >/dev/null; then
+  uuencode() { busybox uuencode "$@"; }
+fi
+if ! which sha256sum >/dev/null; then
+  sha256sum() { busybox sha256sum "$@"; }
+fi
+
 _DATE="$(date +%s)"
 SESSION_TIMEOUT="${SESSION_TIMEOUT:-7200}"
 
@@ -86,3 +93,20 @@ update_session(){
 SESSION_KEY="$(update_session)"
 SET_COOKIE 0 session="$SESSION_KEY" Path=/ SameSite=Strict HttpOnly
 SESSION_ID="${SESSION_KEY%% *}"
+
+SESSION_BIND() {
+  local key="$1" value="$2"
+  SET_COOKIE session "$key"="${value} $(session_mac "$value" "$SESSION_ID")"
+}
+
+SESSION_VAR() {
+  local key="$1"
+  local value sig
+  value="$(COOKIE "$key")"
+  sig="${value##* }" value="${value% *}"
+  if [ "$sig" = "$(session_mac "$value" "$SESSION_ID")" ]; then
+    printf %s\\n "$value"
+  else
+    return 1
+  fi
+}