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96 lines
2.6 KiB
Plaintext
96 lines
2.6 KiB
Plaintext
:: To traverse NAT, we need the response to come back from someone
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:: we've sent a message to. We ping our sponsor so that they know
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:: where we are. However, we also need to ping our galaxy because if
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:: the other ship tries to respond directly, it may be blocked by our
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:: firewall or NAT. Thus, the response must come from a ship we've
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:: messaged direclty, and the only one we can guarantee is our galaxy.
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:: Note this issue manifests itself even for bootstrapping a planet to
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:: talk to its own star.
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::
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/+ default-agent
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=* point point:able:kale
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::
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=> |%
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+$ card card:agent:gall
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:: +print-error: maybe +slog
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::
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++ print-error
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|= [=tape error=(unit tang)]
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^+ same
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?~ error same
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%- (slog leaf+tape u.error) same
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:: +set-timer: send a card to behn to set a timer
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::
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++ set-timer
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|= [now=@da n=@ud]
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^- (list card)
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[%pass /ping-wait/(scot %ud n) %arvo %b %wait `@da`(add ~s30 now)]~
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:: +send-ping: scry our sponsor from jael and poke their %ping app
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::
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++ send-ping
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|= [our=@p now=@da n=@ud]
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^- (list card)
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::
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=/ sponsor=ship (snag n (saxo:title our now our))
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::
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~> %slog.0^leaf/"ping: {<our>} -> {<sponsor>}"
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[%pass /ping-send/(scot %ud n) %agent [sponsor %ping] %poke %noun !>(~)]~
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--
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^- agent:gall
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|_ =bowl:gall
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+* this .
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def ~(. (default-agent this %|) bowl)
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::
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:: +on-init: initializing on startup
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::
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++ on-init
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^- [(list card) _this]
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:: first load; galaxies no-op; everyone else pings sponsor
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::
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:_ this
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~> %slog.0^leaf/"ping: prep {<our.bowl>}"
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=/ saxo (tail (saxo:title our.bowl now.bowl our.bowl))
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%- zing
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%+ turn (gulf 1 (lent saxo))
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|= n=@ud
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(send-ping our.bowl now.bowl n)
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::
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++ on-save on-save:def
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++ on-load :: on-load:def
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|= vase
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on-init
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:: +on-poke: positively acknowledge pokes
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::
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++ on-poke
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|= [=mark =vase]
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`this
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::
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++ on-watch on-watch:def
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++ on-leave on-leave:def
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++ on-peek on-peek:def
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:: +on-agent: handle ames ack
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::
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++ on-agent
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|= [=wire =sign:agent:gall]
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^- [(list card) _this]
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?> ?=([%ping-send @ ~] wire)
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?> ?=(%poke-ack -.sign)
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:_ this
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::
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%- (print-error "ping: ack" p.sign)
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(set-timer now.bowl (slav %ud i.t.wire))
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:: +on-arvo: handle timer firing
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::
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++ on-arvo
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|= [=wire =sign-arvo]
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^- [(list card) _this]
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?> ?=([%ping-wait @ ~] wire)
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?> ?=(%wake +<.sign-arvo)
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:_ this
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~! error.sign-arvo
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%- (print-error "ping: wake" error.sign-arvo)
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(send-ping our.bowl now.bowl (slav %ud i.t.wire))
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::
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++ on-fail on-fail:def
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--
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