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82ef29a23d
Three new Node-RED trigger nodes in BetterFrame Triggers palette: bf-trigger-motion (red) — fires on MotionAlarm, CellMotionDetector, VideoAnalytics/Motion, FieldDetector topics. Outputs msg.active (true/false) for motion start/stop. Camera ID filter optional. bf-trigger-anpr (blue) — fires on LicensePlateRecognition, Plate, ANPR, LPR, NumberPlate topics. Extracts msg.plate (string) and msg.confidence (number) from vendor-specific payload fields (Hikvision PlateNumber, Dahua plateNumber, etc.). Camera ID filter. bf-trigger-event (green) — generic catch-all. Topic substring filter + camera ID filter. Outputs msg.source + msg.data as key-value objects parsed from ONVIF SimpleItems. Use for line crossing, intrusion, digital input, tamper, audio detection, or any unknown topic. Server side: ONVIF events (source_type=onvif) now additionally forward to the fixed onvif.event route so all three nodes receive events without needing per-topic Node-RED route registration.
89 lines
2.7 KiB
JavaScript
89 lines
2.7 KiB
JavaScript
/**
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* bf-trigger-motion — fires on ONVIF motion detection events.
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*
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* Matches topics containing: MotionAlarm, CellMotionDetector, Motion,
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* VideoAnalytics/Motion. Camera ID filter optional.
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*
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* Output: { topic, kiosk_id, camera_id, active: boolean, payload }
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*/
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const { readJsonBody } = require("./_http-body.js");
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const MOTION_PATTERNS = [
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"MotionAlarm",
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"CellMotionDetector",
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"VideoAnalytics",
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"Motion",
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"FieldDetector",
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];
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module.exports = function (RED) {
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const ROUTE = "/api/internal/onvif.motion";
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function BfTriggerMotionNode(config) {
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RED.nodes.createNode(this, config);
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const node = this;
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const filterCam = config.camera_id ? Number(config.camera_id) : null;
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async function handler(req, res) {
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const body = await readJsonBody(req);
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const topic = String(body.topic || "");
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// Only fire for motion-related topics.
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if (!MOTION_PATTERNS.some((p) => topic.includes(p))) {
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return res.status(200).end();
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}
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const cameraId = body.camera_id ?? body.source_camera_id ?? null;
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if (filterCam !== null && Number(cameraId) !== filterCam) {
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return res.status(200).end();
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}
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// Detect active/inactive from payload data.
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const data = body.payload?.data ?? body.payload ?? {};
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const active = data.IsMotion === "true" || data.State === "true"
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|| data.Value === "true" || data.LogicalState === "true"
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|| data.IsInside === "true";
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const out = {
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topic,
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kiosk_id: body.kiosk_id ?? body.source_kiosk_id ?? null,
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camera_id: cameraId,
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active,
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payload: body.payload ?? body,
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};
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node.status({
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fill: active ? "red" : "green",
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shape: "dot",
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text: active ? "Motion detected" : "Clear",
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});
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node.send(out);
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res.status(200).end();
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}
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RED.httpNode.post(ROUTE, handler);
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// Also listen on the generic onvif event route as fallback.
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const GENERIC_ROUTE = "/api/internal/onvif.event";
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RED.httpNode.post(GENERIC_ROUTE, handler);
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node.on("close", function (done) {
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const stack = RED.httpNode?._router?.stack;
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if (stack) {
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for (let i = stack.length - 1; i >= 0; i--) {
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const layer = stack[i];
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if (!layer?.route) continue;
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if (layer.route.path !== ROUTE && layer.route.path !== GENERIC_ROUTE) continue;
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const inner = layer.route.stack;
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if (Array.isArray(inner)) {
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for (let j = inner.length - 1; j >= 0; j--) {
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if (inner[j]?.handle === handler) inner.splice(j, 1);
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}
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if (inner.length === 0) stack.splice(i, 1);
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}
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}
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}
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done();
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});
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}
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RED.nodes.registerType("bf-trigger-motion", BfTriggerMotionNode);
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};
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