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transcendental

Goal: to write a very simple server which will synchronize all clipboard messages of clients.

Authentification: via a small user-chosen token (yes, isn't that secure)

Transport Security: Future:tls over tcp ? Currently: the java-stl-implementation of AES/ECB/PKCS5Padding

planned Clients:

  • Linux
  • Windows
  • Android
  • (macOS, iOS) - not possible (yet) because i don't have any apple devices at hand

supported Server-OS: anything where Go can compile and run

Status:

  • started
  • fully implement a simple server
    • make it accessible by providing commandline options
    • a bit of documentation (how to start, build, use)
  • a simple example client implemented (send/rcv)
    • read from clipboard + detect changes
    • write to clipboard
  • specify the client
  • implement a Simple Java client which supports lazy-transmit and more data flavours
  • write tests

Possible Future Features:

  • be able to transmit more than just text
    • Look up specifications on Windows, Android and X11 Clipboard Mechanisms with different MIME-types
  • [_] make it more secure (mostly auth)
    • not yet really secure (no tests, no audit)
  • save clipboard messages
    • commandline client with direct access to the server
  • save/transmit a history of messages

Links:

build:

Dependencies:

  • go

To build the server, run

$ go get github.com/mqus/transcendental/transcendental-server
$ go install github.com/mqus/transcendental/transcendental-server

this will compile a binary and will place it in $GOPATH/bin (typically $HOME/go/bin)

run:

simply running it will launch a server, which listens on incoming tcp-connections from all interfaces on port 19192.

$ $GOPATH/bin/transcendental-server
2018/02/14 21:24:19 starting up transcendental-server v0.2
2018/02/14 21:24:19 listening on [::]:19192

this can be changed by simply providing the listening address as the first argument to the program, e.g.:

$GOPATH/bin/transcendental-server :1790

to listen on port 1790, or

$GOPATH/bin/transcendental-server localhost:0

to accept connections only from localhost and get a random port assigned.

The running programm won't create or need any files.