KUPnP

"Kew-pin" is a lighter weight Kotlin based UPnP client, based on modern reactive principles.

Work in Progress

• There will be no distribution or support until I hit a stable point.
• API will change regularly.
• Only use for reference until I create hitting versions.

Modules

Discovery

This module handles SSDP (Simple Search Discovery Protocol). At the moment we only support Multicast control point.

Steps

• Finds Active Non-local network interfaces
• Grabs their Addresses (Currently IPv4)
• Creates a MulticastSocket for each Address and binds too it.
• Once bound, sends out 3 SSDP Messages at 200..MX intervals to allow for packet loss and network congestion.

Searching for Devices:

Using SSDPMessage.search(searchString, mx) you can define optional parameters.

• searchString This is the Search String that identifiers, lookup ST in the UPnP spec.
• mx How long a device can wait to respond. This is capped between 1-5 seconds as per spec. (Default 3)

References

• Google Physical Web
• Cling UPnP Client