newblock feature to watch by txid, to be notified on fundchannel

2025-12-18 21:25:06 +01:00 · 2019-01-29 21:03:24 -05:00
parent 8017002069
commit c8480a071f
11 changed files with 358 additions and 7 deletions
--- a/proxy_docker/app/script/callbacks_txid.sh
+++ b/proxy_docker/app/script/callbacks_txid.sh
@@ -0,0 +1,129 @@
+#!/bin/sh
+
+. ./trace.sh
+. ./sql.sh
+
+do_callbacks_txid() {
+  (
+  flock -x 200 || return 0
+
+  trace "Entering do_callbacks_txid()..."
+
+  # Let's fetch all the watching txid still being watched but not called back
+  local callbacks=$(sql 'SELECT id, txid, callback1conf, 1 FROM watching_by_txid WHERE watching AND callback1conf NOT NULL AND NOT calledback1conf')
+  trace "[do_callbacks_txid] callbacks1conf=${callbacks}"
+
+  local returncode
+  local address
+  local url
+  local IFS=$'\n'
+  for row in ${callbacks}
+  do
+    build_callback_txid ${row}
+    returncode=$?
+    trace_rc ${returncode}
+    if [ "${returncode}" -eq 0 ]; then
+      txid=$(echo "${row}" | cut -d '|' -f2)
+      sql "UPDATE watching_by_txid SET calledback1conf=1 WHERE txid=\"${txid}\""
+      trace_rc $?
+    fi
+  done
+
+  local callbacks=$(sql 'SELECT id, txid, callbackxconf, nbxconf FROM watching_by_txid WHERE watching AND calledback1conf AND callbackxconf NOT NULL AND NOT calledbackxconf')
+  trace "[do_callbacks_txid] callbacksxconf=${callbacks}"
+
+  for row in ${callbacks}
+  do
+    build_callback_txid ${row}
+    returncode=$?
+    if [ "${returncode}" -eq 0 ]; then
+      txid=$(echo "${row}" | cut -d '|' -f2)
+      sql "UPDATE watching_by_txid SET calledbackxconf=1, watching=0 WHERE txid=\"${txid}\""
+      trace_rc $?
+    fi
+  done
+
+  ) 200>./.callbacks.lock
+}
+
+build_callback_txid() {
+  trace "Entering build_callback_txid()..."
+
+  local row=$@
+  local id
+  local txid
+  local url
+  local nbxconf
+  local blockhash
+  local blockheight
+  local confirmations
+  local data
+  local tx_raw_details
+
+  # id, txid, url, nbconf
+
+  trace "[build_callback_txid] row=${row}"
+  id=$(echo "${row}" | cut -d '|' -f1)
+  trace "[build_callback_txid] id=${id}"
+  txid=$(echo "${row}" | cut -d '|' -f2)
+  trace "[build_callback_txid] txid=${txid}"
+  url=$(echo "${row}" | cut -d '|' -f3)
+  trace "[build_callback_txid] url=${url}"
+  nbxconf=$(echo "${row}" | cut -d '|' -f4)
+  trace "[build_callback_txid] nbxconf=${nbxconf}"
+
+  tx_raw_details=$(get_rawtransaction ${txid})
+  returncode=$?
+  trace_rc ${returncode}
+
+  if [ "${returncode}" -eq "0" ]; then
+    confirmations=$(echo "${tx_raw_details}" | jq '.result.confirmations')
+    trace "[build_callback_txid] confirmations=${confirmations}"
+
+    if [ "${confirmations}" -ge "${nbxconf}" ]; then
+      trace "[build_callback_txid] Number of confirmations for tx is at least what we're looking for, callback time!"
+      # Number of confirmations for transaction is at least what we want
+      # Let's prepare the callback!
+
+  #    blockhash=$(echo "${tx_raw_details}" | jq '.result.blockhash')
+  #    trace "[build_callback_txid] blockhash=${blockhash}"
+  #    blockheight=$(get_block_info $(echo "${blockhash}" | tr -d '"') | jq '.result.height')
+  #    trace "[build_callback_txid] blockheight=${blockheight}"
+
+      data="{\"id\":\"${id}\","
+      data="${data}\"txid\":\"${txid}\","
+      data="${data}\"confirmations\":${confirmations}"
+      data="${data}}"
+      trace "[build_callback_txid] data=${data}"
+
+      curl_callback_txid "${url}" "${data}"
+      return $?
+    else
+      trace "[build_callback_txid] Number of confirmations for tx is not enough to call back."
+    fi
+  fi
+}
+
+curl_callback_txid() {
+  trace "Entering curl_callback_txid()..."
+
+  local url=${1}
+  local data=${2}
+  local returncode
+
+  trace "[curl_callback_txid] curl -w \"%{http_code}\" -H \"Content-Type: application/json\" -H \"X-Forwarded-Proto: https\" -d \"${data}\" ${url}"
+  rc=$(curl -w "%{http_code}" -H "Content-Type: application/json" -H "X-Forwarded-Proto: https" -d "${data}" ${url})
+  returncode=$?
+  trace "[curl_callback_txid] HTTP return code=${rc}"
+  trace_rc ${returncode}
+
+  if [ "${returncode}" -eq "0" ]; then
+    if [ "${rc}" -lt "400" ]; then
+      return 0
+    else
+      return ${rc}
+    fi
+  else
+    return ${returncode}
+  fi
+}