Show calendar based on IP Address accessed

[sdetweil]

@MMRIZE and that module calls its own rest call publishes the address in its getDom() result, with id= on div

and then cal module can use synchronous document.getElementsById()

to get that value.

[sdetweil]

@MMRIZE @Spinster

so the little module is

https://github.com/sdetweil/getip

and it does correctly return the ip address of the client… tested from 4 different systems to the same MM…

see later post for final solution

[Spinster]

@sdetweil @MMRIZE

Wow, you are quick, you have given me some homework. Will use your code and get back with the result.

Thank you so much for your patience and understanding.

[Spinster]

@sdetweil

I tried your code, but find that once I include getip module in config.js, I am not seeing any output for calendar. Is this the expected output. Without getip module, I find that client_ip = document.getElementById("getip is returning null.Please advice

[sdetweil]

@Spinstersee later post

[MMRIZE]

@Spinster
By the way, which client are you using? Electron? Or Browser?

[Spinster]

@MMRIZE Browser as of now.

I also tried using express ipfilter, but the problem is I don’t know how to use it in module.js, it is throwing error saying ipfilter not known etc

[sdetweil]

@Spinster well, here is a working example, in addition to the other code already

watch out if using address AND MM host system not included. as it won’t show either…
one could make the ipaddress in cal a list (of ip addresses) similar to what @MMRIZE does…
I don’t like adding the extra block,
just add the var to the thing that matters…

see later post

[MMRIZE]

@Spinster
With getip of @sdetweil and MMM-ModuleMonkeyPatch, I did it. (You don’t have to modify the original source code for future-proof.)

Example.
Server is running on 192.168.178.63 and I run 2 clients on 192.168.178.22 and 192.168.178.63.
Both 2 clients can show different set of calendars.

{
	module: "MMM-ModuleMonkeyPatch",
	config: {
		patches: [
			{
				module: "calendar",
				method: "socketNotificationReceived",
				patch: async function (original, args) {
					const [ notification, payload ] = args
					if (notification === "CALENDAR_EVENTS") {
						const calendarName = this.config.calendars.find((cal) => cal.url === payload?.url)?.name
						const r = await fetch('http://192.168.178.63:8080/modules/getip')
						const ip = JSON.parse(await r.text())?.[ 'address' ] ?? null
						if (!this.config.clientMap?.[ ip ]?.includes(calendarName)) {
							return original(notification, { ...payload, events: [] })
						}
					}
					return original(notification, payload)
				}
			}
		]
	}
},
{
	module: "getip",
},
{
	module: "calendar",
	header: "US Holidays",
	position: "top_left",
	config: {
		clientMap: {
			"192.168.178.63": [ "cal1", "cal2", "cal3" ],
			"192.168.178.22": ["cal3", "cal4", "cal5"]
		},
		calendars: [
			{
				url: "...",
				name: "cal1",
			},
			{
				url: "...",
				name: "cal2",
			},
			{
				url: "...",
				name: "cal3",
			},

			{
				url: "...",
				name: "cal4",
			},
			{
				url: "...",
				name: "cal5",
			}
		]
	}
},

TO Improve
Whenever notification CALENDAR_EVENTS coming, getip is called. After first execution, to store IP on the localStorage or cookie would be better.

[Spinster]

@sdetweil will express ipfilter be useful? Similar to whitelist, can we try something