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// SPDX-License-Identifier: Zlib
// SPDX-FileCopyrightText: 2024 CERN (home.cern)
// SPDX-FileContributor: Author: Sylvain Fargier <sylvain.fargier@cern.ch>
import { isNil } from "@cern/nodash";
import d from "debug";
import axios from "axios";
import PTZDevice from "./PTZDevice.js";
const debug = d("cam:ptz:axis");
/**
* @typedef {import('express').Request} Request
* @typedef {import('express').IRouter} expressIRouter
* @typedef {import('express-ws').WithWebsocketMethod & expressIRouter} IRouter
*/
const ControlParams = [ "pan", "tilt", "zoom", "iris", "focus", "brightness" ];
const ExtraControlParams = [
"backlight", "ircutfilter", "imagerotation", "speed", "gotodevicepreset",
"gotopresetname", "auxiliary", "continuousbrightnessmove",
"continuousirismove", "continuousfocusmove", "continuouszoommove",
"continuouspantiltmove", "autoiris", "autofocus", "imageheight", "imagewidth",
"areazoom", "center", "whoami", "camera"
];
class AxisPTZ extends PTZDevice {
/**
*
* @param {any} data
*/
_parseResponse(data) {
return ((typeof data === "string") ? data : "").split("\n").reduce((ret, line) => {
const pos = line.indexOf("=");
if (pos >= 0) {
ret[line.slice(0, pos).trim()] = line.slice(pos + 1).trim();
}
return ret;
}, {});
}
async getLimits() {
const opts = { timeout: 5000 };
if (this.user) {
opts.auth = { username: this.user, password: this.pass };
}
const ret = await axios.get(
`${this.src}/axis-cgi/com/ptz.cgi?query=limits`, opts)
.catch((ret) => {
debug("get limits error: %s", ret?.response?.data ?? "?");
throw new Error("request failed with status: " + ret?.response?.status);
});
return Object.entries(this._parseResponse(ret.data)).reduce(
(ret, [ key, value ]) => {
ret[key] = Number(value);
return ret;
}, {});
}
async getPosition() {
const opts = { timeout: 5000 };
if (this.user) {
opts.auth = { username: this.user, password: this.pass };
}
const ret = await axios.get(
`${this.src}/axis-cgi/com/ptz.cgi?query=position`, opts)
.catch((ret) => {
debug("get position error: %s", ret?.response?.data ?? "?");
throw new Error("request failed with status: " + ret?.response?.status);
});
return Object.entries(this._parseResponse(ret.data)).reduce(
(ret, [ key, v ]) => {
if (key === "autofocus" || key === "autoiris") {
ret[key] = (v === "on");
}
else {
ret[key] = Number(v);
}
return ret;
}, {});
}
/**
* @param {any} params
* @param {any} query
*/
_prepareQuery(params, query) {
(ExtraControlParams ?? []).forEach((p) => {
const value = params[p];
if (isNil(value)) { return; }
else if (value === true || value === false) {
query[p] = value ? "on" : "off";
}
else {
query[p] = value;
}
});
}
async putPosition(params) {
if (!(params instanceof Object)) { throw new Error("invalid arguments: " + params); }
const opts = { timeout: 5000 };
if (this.user) {
opts.auth = { username: this.user, password: this.pass };
}
opts.params = ControlParams.reduce((ret, name) => {
if (!isNil(params[name])) {
ret[name] = params[name];
}
return ret;
}, {});
this._prepareQuery(params, opts.params);
await axios.get(`${this.src}/axis-cgi/com/ptz.cgi`, opts)
.catch((ret) => {
debug("put position error: %s", ret?.response?.data ?? "?");
throw new Error("request failed with status: " + ret?.response?.status);
});
return true;
}
async postPosition(params) {
if (!(params instanceof Object)) { throw new Error("invalid arguments: " + params); }
const opts = { timeout: 5000 };
if (this.user) {
opts.auth = { username: this.user, password: this.pass };
}
opts.params = ControlParams.reduce((ret, name) => {
if (!isNil(params[name])) {
ret["r" + name] = params[name];
}
return ret;
}, {});
this._prepareQuery(params, opts.params);
await axios.get(`${this.src}/axis-cgi/com/ptz.cgi`, opts)
.catch((ret) => {
debug("post position error: %s", ret?.response?.data ?? "?");
throw new Error("request failed with status: " + ret?.response?.status);
});
return true;
}
}
export default AxisPTZ;
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