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#!/bin/bash
################################################################################
# Authors: @jytou (https://git.duniter.org/jytou)
# Modified by Fred (support@qo-op.com) to modifiy silkaj constant with best server
# Version: 0.1
# License: AGPL-3.0 (https://choosealicense.com/licenses/agpl-3.0/)
################################################################################
# Checks the current block number of nodes.txt (is run in parallel) and output random (from last synchronized) node
# pip3 install duniterpy
# pip3 install silkaj --user
checkonenode()
{
# Timeout in seconds for https nodes
httpsTimeout=1
# Timeout in seconds for http nodes
httpTimeout=1
node=$1
watched=$2
outfile=$3
# Curl: -m timeout, -k ignore SSL certificate errors
cur=`echo "$( { curl -m $httpsTimeout -k https://$node/blockchain/current; } 2>&1 )"`
n=$node
if [[ "$cur" != *issuersFrameVar* ]]
then
# It failed in https, maybe try http?
cur=`echo "$( { curl -m $httpTimeout http://$node/blockchain/current; } 2>&1 )"`
if [[ "$cur" == *issuersFrameVar* ]]
then
# Indicate that the node is http
n="$n-(http)"
fi
fi
if [[ "$cur" != *issuersFrameVar* ]]
then
# The node didn't respond on time
cur="ERROR"
else
# The node did respond - grab the block number and hash of the block as key
cur="`echo "$cur"|grep '^ "number": '|awk '{print $2}'|awk -F, '{print $1}'`-`echo "$cur"|grep '^ "hash": '|awk '{print $2}'|awk '{print substr($1,2,13)}'`"
fi
if [[ $watched =~ .*#$node#.* ]]
then
# The node is a watched node, add some bold
n="\e[1m$n\e[0m"
fi
# Put the result into the file
echo "$cur $n">$outfile
# Notify that we're done here
touch $outfile.done
}
# Temp dir where results are stored
DIR=/tmp/gnodewatch
export DIR
mkdir -p $DIR/chains
###########
# BANNISH DUNITER NODE?
# TODO: silkaj evolution!! Better CLI integration to make!
# Duniter Node is too slow or behave badly, remove it from nodes.txt list
BAN=$1
if [[ "$BAN" == "BAN" ]]; then
# Get actual Duniter node used by silkaj
SERVER=$(cat ./silkaj/src/constants.py | grep G1_DEFAULT_ENDPOINT | awk '{print $3}' | sed s/\"\,//g | sed s/\"//g)
[[ ! $(grep $SERVER:443 shell/bad.nodes.txt) ]] && echo $SERVER:443 >> shell/bad.nodes.txt
sed -i "/$SERVER:443/d" ./shell/good.nodes.txt
echo "$SERVER:443 IS NOW in ./shell/bad.nodes.txt"
fi
### nodes.txt EMPTYNESS CARE
NBgood=$(cat ./shell/good.nodes.txt | wc -l)
NBbad=$(cat ./shell/bad.nodes.txt | wc -l)
if [[ $NBgood -le $NBbad ]]; then
echo "" > ./shell/good.nodes.txt
echo "" > ./shell/bad.nodes.txt
# TODO: Each decentralized App must have a source for its confidence to be UP and running and publishing latest code for our concensus behaviour!
echo "___ REFRESH ./shell/nodes.txt from g1.duniter.org:443 ___"
curl -s https://g1.duniter.org/network/peers | jq '.peers[] | .endpoints' | grep BMAS | awk '{print $2,$3}' | sed s/\"//g | sed s/\,//g | sed s/\ /:/g > "./shell/nodes.txt"
echo $(cat "./shell/nodes.txt")
fi
###########
# CONTINUE
# Grab the nodes we are actively watching - they will be in bold in the final output
watched=`grep -v "#" ./shell/nodes.txt|egrep "\!$"|awk '{print "#" $1 "#"}'`
# All nodes we are watching
nodes=`grep -v "#" ./shell/nodes.txt|awk '{print $1}'`
# The index to generate separate file names
index=0
# Wipe out the output directory
rm $DIR/*out $DIR/*done $DIR/chains/* $DIR/NODE.* 2>/dev/null
# Query all nodes in parallel
for node in $nodes
do
checkonenode $node "$watched" $DIR/$index.out &
((index++))
done
# Wait a little for the first files to be created
sleep 1s
# Wait for all the threads to report they are done
while [ `ls $DIR/*done|wc -l` -lt $index ]
do
sleep 1s
done
# Grab all results
curs=`cat $DIR/*out|sort`
# Extract all forks, excluding all errors
chains="`echo "$curs"|grep -v ERROR|awk '{print $1}'|sort -r|uniq`"
# Count the number of chains and output most recent consensus to "good.nodes.txt"
nb=0
for chain in $chains
do
echo "$curs" | egrep "^$chain " | awk '{print $2}' >> $DIR/chains/$nb;
((nb++))
done
longchain=$(ls -S /tmp/gnodewatch/chains/ | head -n 1)
cp /tmp/gnodewatch/chains/$longchain "./shell/good.nodes.txt"
#####################################################################################
# ASK peers to all good.nodes.txt
#for node in $(cat ./shell/good.nodes.txt); do
# NANODATE=$(date +%s%N);
# DUN="https://$(echo $node| cut -d ":" -f 1)";
# curl -s -o $DIR/NODE.$NANODATE.$node ${DUN}/network/peers;
#done
# REFRESH from all known peers NEW nodes.txt
#cat /tmp/gnodewatch/NODE.* | jq '.peers[] | .endpoints' | grep BMAS | awk '{print $2,$3}' | sed s/\"//g | sed s/\,//g | sed s/\ /:/g | sort | uniq > "./shell/nodes.txt"
#####################################################################################
# Output Random actual best node
# Compare with ./shell/bad.nodes.txt
while [[ "$BAD" == "$DUNITER" ]]; do
DUNITER=$(shuf "./shell/good.nodes.txt" | head -n 1)
BAD=$(grep -Rw "$DUNITER" ./shell/bad.nodes.txt)
done
################# MODIFY silkaj constants.py
silkaj=$(echo $DUNITER | cut -d ":" -f 1)
if [[ "$silkaj" != "" && "$silkaj" != "https" ]]; then
#echo "PUT $silkaj SILKAJ PARAM"
cat ./silkaj/src/constants.default.py | sed s/duniter-g1.p2p.legal/$silkaj/g > ./silkaj/src/constants.py
else
echo "RESTORE DEFAULT SILKAJ PARAM"
cp -f ./silkaj/src/constants.default.py ./silkaj/src/constants.py
fi
echo $DUNITER