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98568e191a
* Enforce preserving parent proc return values across ui_act call stacks (#53964) All ui_act procs should call parent by default. All procs should preserve the value of the parent proc when it's TRUTHY and pass it down the call stack. No UI should be interactible when its flags or state indicate it should not be, except when explicity overriden by child procs intentionally disregarding parent return values to achieve a specific goal. * Enforce preserving parent proc return values across ui_act call stacks Co-authored-by: Timberpoes <silent_insomnia_pp@hotmail.co.uk>
142 lines
4.9 KiB
Plaintext
142 lines
4.9 KiB
Plaintext
// Relays don't handle any actual communication. Global NTNet datum does that, relays only tell the datum if it should or shouldn't work.
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/obj/machinery/ntnet_relay
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name = "NTNet Quantum Relay"
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desc = "A very complex router and transmitter capable of connecting electronic devices together. Looks fragile."
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use_power = ACTIVE_POWER_USE
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active_power_usage = 10000 //10kW, apropriate for machine that keeps massive cross-Zlevel wireless network operational. Used to be 20 but that actually drained the smes one round
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idle_power_usage = 100
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icon = 'icons/obj/machines/telecomms.dmi'
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icon_state = "bus"
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density = TRUE
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circuit = /obj/item/circuitboard/machine/ntnet_relay
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var/datum/ntnet/NTNet = null // This is mostly for backwards reference and to allow varedit modifications from ingame.
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///On / off status for the relay machine, toggleable by the user.
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var/relay_enabled = TRUE
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///(D)DoS-attack-related failure causing it not to be operational any longer.
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var/dos_failure = FALSE
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var/list/dos_sources = list() // Backwards reference for qdel() stuff
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var/uid
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var/static/gl_uid = 1
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// Denial of Service attack variables
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var/dos_overload = 0 // Amount of DoS "packets" in this relay's buffer
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var/dos_capacity = 500 // Amount of DoS "packets" in buffer required to crash the relay
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var/dos_dissipate = 0.5 // Amount of DoS "packets" dissipated over time.
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///Proc called to change the value of the `relay_enabled` variable and append behavior related to its change.
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/obj/machinery/ntnet_relay/proc/set_relay_enabled(new_value)
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if(new_value == relay_enabled)
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return
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. = relay_enabled
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relay_enabled = new_value
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if(.) //Turned off
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set_is_operational(FALSE)
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else if(!dos_failure && !(machine_stat & (NOPOWER|BROKEN|MAINT))) //Turned on
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set_is_operational(TRUE)
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///Proc called to change the value of the `dos_failure` variable and append behavior related to its change.
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/obj/machinery/ntnet_relay/proc/set_dos_failure(new_value)
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if(new_value == dos_failure)
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return
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. = dos_failure
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dos_failure = new_value
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if(.) //Failure ended
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if(relay_enabled && !(machine_stat & (NOPOWER|BROKEN|MAINT)))
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set_is_operational(TRUE)
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else //Failure started
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set_is_operational(FALSE)
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/obj/machinery/ntnet_relay/on_set_machine_stat(old_value)
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if(old_value & (NOPOWER|BROKEN|MAINT))
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if(relay_enabled && !dos_failure && !(machine_stat & (NOPOWER|BROKEN|MAINT))) //From off to on.
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set_is_operational(TRUE)
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else if(machine_stat & (NOPOWER|BROKEN|MAINT)) //From on to off.
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set_is_operational(FALSE)
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/obj/machinery/ntnet_relay/update_icon_state()
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if(is_operational)
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icon_state = "bus"
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else
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icon_state = "bus_off"
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/obj/machinery/ntnet_relay/process(delta_time)
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if(is_operational)
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use_power = ACTIVE_POWER_USE
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else
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use_power = IDLE_POWER_USE
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update_icon()
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if(dos_overload > 0)
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dos_overload = max(0, dos_overload - dos_dissipate * delta_time)
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// If DoS traffic exceeded capacity, crash.
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if((dos_overload > dos_capacity) && !dos_failure)
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set_dos_failure(TRUE)
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update_icon()
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SSnetworks.station_network.add_log("Quantum relay switched from normal operation mode to overload recovery mode.")
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// If the DoS buffer reaches 0 again, restart.
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if((dos_overload == 0) && dos_failure)
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set_dos_failure(FALSE)
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update_icon()
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SSnetworks.station_network.add_log("Quantum relay switched from overload recovery mode to normal operation mode.")
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..()
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/obj/machinery/ntnet_relay/ui_interact(mob/user, datum/tgui/ui)
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ui = SStgui.try_update_ui(user, src, ui)
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if(!ui)
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ui = new(user, src, "NtnetRelay")
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ui.open()
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/obj/machinery/ntnet_relay/ui_data(mob/user)
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var/list/data = list()
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data["enabled"] = relay_enabled
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data["dos_capacity"] = dos_capacity
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data["dos_overload"] = dos_overload
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data["dos_crashed"] = dos_failure
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return data
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/obj/machinery/ntnet_relay/ui_act(action, params)
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. = ..()
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if(.)
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return
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switch(action)
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if("restart")
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dos_overload = 0
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set_dos_failure(FALSE)
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update_icon()
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SSnetworks.station_network.add_log("Quantum relay manually restarted from overload recovery mode to normal operation mode.")
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return TRUE
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if("toggle")
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set_relay_enabled(!relay_enabled)
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SSnetworks.station_network.add_log("Quantum relay manually [relay_enabled ? "enabled" : "disabled"].")
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update_icon()
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return TRUE
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/obj/machinery/ntnet_relay/Initialize()
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uid = gl_uid++
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component_parts = list()
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if(SSnetworks.station_network)
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SSnetworks.station_network.relays.Add(src)
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NTNet = SSnetworks.station_network
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SSnetworks.station_network.add_log("New quantum relay activated. Current amount of linked relays: [NTNet.relays.len]")
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. = ..()
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/obj/machinery/ntnet_relay/Destroy()
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if(SSnetworks.station_network)
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SSnetworks.station_network.relays.Remove(src)
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SSnetworks.station_network.add_log("Quantum relay connection severed. Current amount of linked relays: [NTNet.relays.len]")
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NTNet = null
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for(var/datum/computer_file/program/ntnet_dos/D in dos_sources)
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D.target = null
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D.error = "Connection to quantum relay severed"
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return ..()
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