mirror of
https://github.com/ilyakooo0/urbit.git
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253 lines
6.3 KiB
Plaintext
253 lines
6.3 KiB
Plaintext
:: btc-provider.hoon
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:: Proxy that serves a BTC full node and ElectRS address indexer
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::
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:: Subscriptions: none
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:: To Subscribers:
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:: current connection state
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:: results/errors of RPC calls
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::
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/+ *btc-provider, dbug, default-agent
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|%
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+$ versioned-state
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$% state-0
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==
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::
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+$ state-0 [%0 =host-info whitelist=(set ship)]
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::
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+$ card card:agent:gall
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::
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--
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%- agent:dbug
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=| state-0
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=* state -
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^- agent:gall
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=<
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|_ =bowl:gall
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+* this .
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def ~(. (default-agent this %|) bowl)
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hc ~(. +> bowl)
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::
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++ on-init
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^- (quip card _this)
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~& > '%btc-provider initialized successfully'
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:: ping every 30s to see whether connected to RPC
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::
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:- ~[(start-ping-timer:hc ~s30)]
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this(host-info [*credentials connected=%.n clients=*(set ship)], whitelist *(set ship))
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++ on-save
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^- vase
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!>(state)
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++ on-load
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|= old-state=vase
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^- (quip card _this)
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~& > '%btc-provider recompiled successfully '
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`this(state !<(versioned-state old-state))
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++ on-poke
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|= [=mark =vase]
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^- (quip card _this)
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:: Only allow clients/authorized to poke
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::
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?> ?|((team:title our.bowl src.bowl) (is-client:hc src.bowl))
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=^ cards state
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?+ mark (on-poke:def mark vase)
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%btc-provider-command
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?> (team:title our.bowl src.bowl)
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(handle-command:hc !<(command vase))
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%btc-provider-action
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(handle-action:hc !<(action vase))
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==
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[cards this]
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++ on-watch
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|= pax=path
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^- (quip card _this)
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?> (is-whitelisted:hc src.bowl)
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~& > "btc-provider: added client {<src.bowl>}"
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`this(clients.host-info (~(put in clients.host-info) src.bowl))
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::
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++ on-leave on-leave:def
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++ on-peek on-peek:def
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++ on-agent on-agent:def
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++ on-arvo
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|= [=wire =sign-arvo]
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^- (quip card _this)
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:: check for connectivity every 30 seconds
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?: ?=([%ping-timer *] wire)
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:_ this
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:~ :* %pass /ping/[(scot %da now.bowl)] %agent
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[our.bowl %btc-provider] %poke
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%btc-provider-action !>([%ping ~])
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==
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(start-ping-timer:hc ~s30)
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==
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=^ cards state
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?+ +<.sign-arvo (on-arvo:def wire sign-arvo)
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%http-response
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(handle-response:hc wire client-response.sign-arvo)
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==
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[cards this]
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::
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++ on-fail on-fail:def
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--
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:: helper core
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|_ =bowl:gall
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++ start-ping-timer
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|= interval=@dr ^- card
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[%pass /ping-timer %arvo %b %wait (add now.bowl interval)]
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++ handle-action
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|= act=action
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|^ ^- (quip card _state)
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?: ?=(%ping -.act)
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~& >> "ping action"
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`state
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?. connected.host-info
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~& >>> "Not connected to RPC"
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[~[(send-update [%| [%not-connected 500]])] state]
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=/ ract=action:rpc
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?- -.act
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%watch-address
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[%erpc %get-address-utxos address.act]
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==
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[~[(req-card ract)] state]
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++ req-card
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|= ract=action:rpc
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=| out=outbound-config:iris
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=/ req=request:http
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(gen-request host-info ract)
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[%pass /[-.act]/[-.ract]/[(scot %da now.bowl)] %arvo %i %request req out]
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--
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++ handle-command
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|= comm=command
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^- (quip card _state)
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?- -.comm
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%set-credentials
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`state(host-info [creds.comm connected=%.y clients=*(set ship)])
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::
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%whitelist-clients
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`state(whitelist (~(uni in whitelist) clients.comm))
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==
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++ handle-response
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|= [=wire response=client-response:iris]
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^- (quip card _state)
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?. ?=(%finished -.response) `state
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=* status status-code.response-header.response
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:: handle error types, in order:
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:: - connection errors
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:: - RPC errors
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::
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=^ conn-err state
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(connection-error status)
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?^ conn-err
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~& >>> conn-err
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[~[(send-update [%| u.conn-err])] state]
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=/ rpc-resp=response:rpc:jstd
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(get-rpc-response response)
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?. ?=([%result *] rpc-resp)
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[~[(send-update [%| [%rpc-error ~]])] state]
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:: no error, so handle returned RPC data
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::
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?+ wire ~|("Unexpected HTTP response" !!)
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[%watch-address %erpc *]
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~& >> +<.wire :: %brpc/%erpc
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~& > rpc-resp
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`state
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==
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::
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++ connection-error
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|= status=@ud
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^- [(unit error) _state]
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?+ status [`[%http-error status] state]
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%200
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[~ state]
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%400
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[`[%bad-request status] state]
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%502
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[`[%not-connected status] state(connected.host-info %.y)]
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%504
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[`[%not-connected status] state(connected.host-info %.n)]
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==
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::
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++ send-update
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|= =update ^- card
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[%give %fact [/clients]~ %btc-provider-update !>(update)]
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::
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++ is-whitelisted
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|= user=ship ^- ?
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?| (~(has in whitelist) user)
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=(our.bowl user)
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==
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++ is-client
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|= user=ship ^- ?
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(~(has in clients.host-info) user)
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::
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++ httr-to-rpc-response
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|= hit=httr:eyre
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^- response:rpc:jstd
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~| hit
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=/ jon=json (need (de-json:html q:(need r.hit)))
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?. =(%2 (div p.hit 100))
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(parse-rpc-error jon)
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=, dejs-soft:format
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^- response:rpc:jstd
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=; dere
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=+ res=((ar dere) jon)
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?~ res (need (dere jon))
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[%batch u.res]
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|= jon=json
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^- (unit response:rpc:jstd)
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=/ res=[id=(unit @t) res=(unit json) err=(unit json)]
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%. jon
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=, dejs:format
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=- (ou -)
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:~ ['id' (uf ~ (mu so))]
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['result' (uf ~ (mu same))]
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['error' (uf ~ (mu same))]
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==
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?: ?=([^ * ~] res)
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`[%result [u.id.res ?~(res.res ~ u.res.res)]]
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~| jon
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`(parse-rpc-error jon)
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::
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++ get-rpc-response
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|= response=client-response:iris
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^- response:rpc:jstd
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?> ?=(%finished -.response)
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%- httr-to-rpc-response
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%+ to-httr:iris
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response-header.response
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full-file.response
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::
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++ parse-rpc-error
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|= =json
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^- response:rpc:jstd
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:- %error
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?~ json ['' '' '']
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%. json
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=, dejs:format
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=- (ou -)
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:~ =- ['id' (uf '' (cu - (mu so)))]
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|*(a=(unit) ?~(a '' u.a))
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:- 'error'
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=- (uf ['' ''] -)
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=- (cu |*(a=(unit) ?~(a ['' ''] u.a)) (mu (ou -)))
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:~ ['code' (uf '' no)]
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['message' (uf '' so)]
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== ==
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::
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:: TODO: BELOW are deprecated. Rip out their functionality
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++ btc-http-response
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|= [status=@ud rpc-resp=response:rpc:jstd]
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^- (quip card _state)
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?. ?=([%result *] rpc-resp)
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~& [%error +.rpc-resp]
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[~ state]
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:: ~& > (parse-response:btc-rpc:blib rpc-resp)
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[~ state]
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::
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++ electrum-http-response
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|= [status=@ud rpc-resp=response:rpc:jstd]
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^- (quip card _state)
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:: ~& >> (to-response (rpc-response [%erpc (parse-response:electrum-rpc:elib rpc-resp)]))
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`state
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::
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--
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