Refactor FastCGI server and compiler, enhance HTTP header parsing, and add WebSocket support

- Refactored FastCGIServer class to improve socket handling and added shutdown functionality.
- Updated compiler functions to streamline HTML and text literal processing.
- Enhanced split_kv function to support uppercase keys and added split_http_headers for better HTTP header parsing.
- Introduced new session management functions to validate and handle session IDs.
- Added WebSocket frame parsing and handling in the URI module.
- Created systemd service scripts for easier deployment and management of the UCE FastCGI runtime.
- Added new test cases for header handling, time parsing, and WebSocket functionality.

scripts/systemd/manage-uce-service.sh

@@ -0,0 +1,50 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+if [[ ${EUID:-0} -ne 0 ]]; then
+	echo "This script must run as root." >&2
+	exit 1
+fi
+
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+REPO_ROOT="$(cd "$SCRIPT_DIR/../.." && pwd)"
+UNIT_NAME="uce.service"
+UNIT_SOURCE="$SCRIPT_DIR/uce.service"
+UNIT_DEST="/etc/systemd/system/$UNIT_NAME"
+CONFIG_SOURCE="$REPO_ROOT/etc/uce/settings.cfg"
+CONFIG_DEST="/etc/uce/settings.cfg"
+
+action="${1:-setup}"
+
+install_unit() {
+	install -D -m 0644 "$UNIT_SOURCE" "$UNIT_DEST"
+	if [[ ! -f "$CONFIG_DEST" ]]; then
+		install -D -m 0644 "$CONFIG_SOURCE" "$CONFIG_DEST"
+	fi
+	systemctl daemon-reload
+}
+
+case "$action" in
+	install)
+		install_unit
+		;;
+	setup)
+		install_unit
+		systemctl enable --now "$UNIT_NAME"
+		;;
+	enable)
+		install_unit
+		systemctl enable "$UNIT_NAME"
+		;;
+	start|stop|restart|status)
+		systemctl "$action" "$UNIT_NAME"
+		;;
+	logs)
+		lines="${2:-100}"
+		journalctl -u "$UNIT_NAME" -n "$lines" --no-pager
+		;;
+	*)
+		echo "Usage: $0 [install|setup|enable|start|stop|restart|status|logs [lines]]" >&2
+		exit 1
+		;;
+esac

scripts/systemd/uce.service

@@ -0,0 +1,22 @@
+[Unit]
+Description=UCE FastCGI Runtime
+After=network-online.target mariadb.service memcached.service
+Wants=network-online.target
+
+[Service]
+Type=simple
+WorkingDirectory=/Code/uce.openfu.com/uce
+ExecStartPre=/usr/bin/mkdir -p /tmp/uce/work /tmp/uce/uploads /tmp/uce/sessions
+ExecStartPre=/usr/bin/rm -f /run/uce.sock
+ExecStartPre=/usr/bin/bash /Code/uce.openfu.com/uce/scripts/build_linux.sh
+ExecStart=/Code/uce.openfu.com/uce/bin/uce_fastcgi.linux.bin
+ExecStopPost=/usr/bin/rm -f /run/uce.sock
+Restart=always
+RestartSec=2
+TimeoutStopSec=15
+KillMode=mixed
+StandardOutput=journal
+StandardError=journal
+
+[Install]
+WantedBy=multi-user.target