mirror of
https://github.com/ilyakooo0/urbit.git
synced 2024-12-27 00:44:27 +03:00
174 lines
5.4 KiB
Plaintext
174 lines
5.4 KiB
Plaintext
:: eth-watcher: ethereum event log collector
|
|
::
|
|
/- spider, *eth-watcher
|
|
/+ strandio, ethio, azimuth
|
|
=, ethereum-types
|
|
=, jael
|
|
::
|
|
:: Main loop: get updates since last checked
|
|
::
|
|
|= args=vase
|
|
|^
|
|
=+ !<([~ pup=watchpup] args)
|
|
=/ m (strand:strandio ,vase)
|
|
^- form:m
|
|
;< =latest=block bind:m (get-latest-block:ethio url.pup)
|
|
;< pup=watchpup bind:m (zoom pup number.id.latest-block)
|
|
=| vows=disavows
|
|
;< pup=watchpup bind:m (fetch-batches pup)
|
|
::?. eager.pup
|
|
(pure:m !>([vows pup]))
|
|
:: |- ^- form:m
|
|
:: =* loop $
|
|
:: ?: (gth number.pup number.id.latest-block)
|
|
:: (pure:m !>([vows pup]))
|
|
:: ;< =block bind:m (get-block-by-number:ethio url.pup number.pup)
|
|
:: ;< [=new=disavows pup=watchpup] bind:m (take-block pup block)
|
|
:: %= loop
|
|
:: pup pup
|
|
:: vows (weld vows new-disavows)
|
|
:: ==
|
|
::
|
|
:: Process a block, detecting and handling reorgs
|
|
::
|
|
++ take-block
|
|
|= [pup=watchpup =block]
|
|
=/ m (strand:strandio ,[disavows watchpup])
|
|
^- form:m
|
|
:: if this next block isn't direct descendant of our logs, reorg happened
|
|
?: &(?=(^ blocks.pup) !=(parent-hash.block hash.id.i.blocks.pup))
|
|
(rewind pup block)
|
|
=/ contracts (weld contracts.pup batchers.pup)
|
|
;< =new=loglist bind:m :: oldest first
|
|
(get-logs-by-hash:ethio url.pup hash.id.block contracts topics.pup)
|
|
%- pure:m
|
|
:- ~
|
|
%_ pup
|
|
number +(number.id.block)
|
|
pending-logs (~(put by pending-logs.pup) number.id.block new-loglist)
|
|
blocks [block blocks.pup]
|
|
==
|
|
::
|
|
:: Reorg detected, so rewind until we're back in sync
|
|
::
|
|
++ rewind
|
|
:: block: wants to be head of blocks.pup, but might not match
|
|
|= [pup=watchpup =block]
|
|
=/ m (strand:strandio ,[disavows watchpup])
|
|
=* blocks blocks.pup
|
|
=| vows=disavows
|
|
|- ^- form:m
|
|
=* loop $
|
|
:: if we have no further history to rewind, we're done
|
|
?~ blocks
|
|
(pure:m (flop vows) pup(blocks [block blocks]))
|
|
:: if target block is directly after "latest", we're done
|
|
?: =(parent-hash.block hash.id.i.blocks)
|
|
(pure:m (flop vows) pup(blocks [block blocks]))
|
|
:: next-block: the new target block
|
|
;< =next=^block bind:m
|
|
(get-block-by-number:ethio url.pup number.id.i.blocks)
|
|
=. pending-logs.pup (~(del by pending-logs.pup) number.id.i.blocks)
|
|
=. vows [id.block vows]
|
|
loop(block next-block, blocks t.blocks)
|
|
::
|
|
:: Zoom forward to near a given block number.
|
|
::
|
|
:: Zooming doesn't go forward one block at a time. As a
|
|
:: consequence, it cannot detect and handle reorgs. Only use it
|
|
:: at a safe distance -- 100 blocks ago is probably sufficient.
|
|
::
|
|
++ zoom
|
|
|= [pup=watchpup =latest=number:block]
|
|
=/ m (strand:strandio ,watchpup)
|
|
^- form:m
|
|
=/ zoom-margin=number:block 0 :: TODO: 30!
|
|
=/ zoom-step=number:block 100.000
|
|
?: (lth latest-number (add number.pup zoom-margin))
|
|
(pure:m pup)
|
|
=/ up-to-number=number:block
|
|
(min (add 10.000.000 number.pup) (sub latest-number zoom-margin))
|
|
|-
|
|
=* loop $
|
|
?: (gth number.pup up-to-number)
|
|
(pure:m pup(blocks ~))
|
|
=/ to-number=number:block
|
|
=; step
|
|
(min up-to-number (add number.pup step))
|
|
:: Between "launch" (6.784.800) and "public" (7.033.765) blocks,
|
|
:: there are a lot events belonging to all the pre-ethereum ships
|
|
:: being established on-chain. By reducing the step, we avoid crashing.
|
|
::
|
|
?. =(contracts:azimuth mainnet-contracts:azimuth)
|
|
zoom-step
|
|
?: ?| &((gte number.pup 6.951.132) (lth number.pup 6.954.242))
|
|
&((gte number.pup 7.011.857) (lth number.pup 7.021.881))
|
|
==
|
|
50
|
|
?: ?& (gte number.pup launch:mainnet-contracts:azimuth)
|
|
(lth number.pup public:mainnet-contracts:azimuth)
|
|
==
|
|
500
|
|
zoom-step
|
|
;< =loglist bind:m :: oldest first
|
|
%: get-logs-by-range:ethio
|
|
url.pup
|
|
(weld contracts.pup batchers.pup)
|
|
topics.pup
|
|
number.pup
|
|
to-number
|
|
==
|
|
=? pending-logs.pup ?=(^ loglist)
|
|
(~(put by pending-logs.pup) to-number loglist)
|
|
loop(number.pup +(to-number))
|
|
:: Fetch input for any logs in batchers.pup
|
|
::
|
|
++ fetch-batches
|
|
|= pup=watchpup
|
|
=/ m (strand:strandio ,watchpup)
|
|
=| res=(list [number:block loglist])
|
|
=/ pending=(list [=number:block =loglist]) ~(tap by pending-logs.pup)
|
|
|- ^- form:m
|
|
=* loop $
|
|
?~ pending
|
|
(pure:m pup(pending-logs (malt res)))
|
|
;< logs=(list event-log:rpc:ethereum) bind:m
|
|
(fetch-inputs pup loglist.i.pending)
|
|
=. res [[number.i.pending logs] res]
|
|
loop(pending t.pending)
|
|
:: Fetch inputs for a list of logs
|
|
::
|
|
++ fetch-inputs
|
|
|= [pup=watchpup logs=(list event-log:rpc:ethereum)]
|
|
=/ m (strand:strandio ,(list event-log:rpc:ethereum))
|
|
=| res=(list event-log:rpc:ethereum)
|
|
|- ^- form:m
|
|
=* loop $
|
|
?~ logs
|
|
(pure:m (flop res))
|
|
;< log=event-log:rpc:ethereum bind:m (fetch-input pup i.logs)
|
|
=. res [log res]
|
|
loop(logs t.logs)
|
|
:: Fetch input for a log
|
|
::
|
|
++ fetch-input
|
|
|= [pup=watchpup log=event-log:rpc:ethereum]
|
|
=/ m (strand:strandio ,event-log:rpc:ethereum)
|
|
^- form:m
|
|
?~ mined.log
|
|
(pure:m log)
|
|
?^ input.u.mined.log
|
|
(pure:m log)
|
|
?. (lien batchers.pup |=(=@ux =(ux address.log)))
|
|
(pure:m log)
|
|
;< res=transaction-result:rpc:ethereum bind:m
|
|
(get-tx-by-hash:ethio url.pup transaction-hash.u.mined.log)
|
|
(pure:m log(input.u.mined `(data-to-hex input.res)))
|
|
::
|
|
++ data-to-hex
|
|
|= data=@t
|
|
?~ data *@ux
|
|
?: =(data '0x') *@ux
|
|
(hex-to-num:ethereum data)
|
|
--
|