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#!/bin/bash
# This file describe the structure of the ArchingKaos messages in their basis.
#
# As previously thought, we exchange one IPFS hash through whatever means we can.
#
# GPG is mentioned as a signing algorithm for encryption, decryption and signing.
# Let's say we have a file named as `example`
#
# We can extend this with calling the encoder and further send the transaction
#
#FINGERPRINT="CHANGE THIS TO YOUR DEFAULT FINGERPRINT"
# We acquire the GPG fingerprint by email address
# The following example finds kaos@kaos.kaos' GPG fingerprint like this
# FINGERPRINT="$(gpg2 --list-keys | grep kaos@kaos.kaos -1 | head -n1 | awk '{print $1}')"
# Below, the usage information
usage(){
title
echo "$0 - action data_file"
echo "Creates and publishes a ZBLOCK based on ACTION and DATA file."
echo ""
echo "action An action for the render to grasp"
echo "data_file A data file that according to the action is valid"
echo ""
}
main(){
logthis "We are doing" $ACTION "with content" $MESSAGE
# We add it to IPFS
MESSAGE_HASH=$(ipfs add -q $MESSAGE)
# We create a detached and armor signature of it
MESSAGE_SIGN_FILE=$MESSAGE".asc"
gpg2 --detach-sign --sign-with $FINGERPRINT --armor --output $MESSAGE_SIGN_FILE $MESSAGE
# We add the signature to IPFS
MESSAGE_SIGNATURE=$(ipfs add -q $MESSAGE_SIGN_FILE)
# We will be using our public key also to put it in the block later
KEY="gpg.pub"
gpg2 --armour --output $KEY --export $FINGERPRINT
GPG_PUB_KEY=$(ipfs add -q $KEY)
# Acquire last block of information, to chain this one with previous posted
PREVIOUS=$(ipfs files stat /zlatest | head -n 1)
# We create a block of json like this:
cat > block <<EOF
{
"timestamp":"$(date -u +%s)",
"action":"$ACTION",
"data":"$MESSAGE_HASH",
"detach":"$MESSAGE_SIGNATURE",
"gpg":"$GPG_PUB_KEY",
"previous":"$PREVIOUS"
}
EOF
BLOCK="block"
BLOCK_SIG=$BLOCK".asc"
# We have a block now, so we sign it
gpg2 --detach-sign --sign-with $FINGERPRINT --armor --output $BLOCK_SIG $BLOCK
# We now add the signature to IPFS
BLOCK_SIGNATURE=$(ipfs add -q $BLOCK_SIG)
# We also add the block!
BLOCK=$(ipfs add -q $BLOCK)
# So we now do the think almost again
cat > zblock << EOF
{
"block":"$BLOCK",
"block_signature":"$BLOCK_SIGNATURE"
}
EOF
ZBL="zblock"
# and we add it on IPFS
ZBLOCK=$(ipfs add -q $ZBL)
echo $ZBLOCK
}
title(){
echo "AK zblock creator"
echo "================="
}
if [ ! -z $2 ];
then
PWD="$(pwd)"
MESSAGE="$PWD/$2"
ACTION="$1"
if [ -f "$MESSAGE" ]; then
main
else
logthis "File does not exist. Aborting..."
exit 1
fi
# cat $PWD/zblock | json_pp
# Optional or extending with
# python send_as_ak_tx $ZBLOCK
# or for "offline" use
echo $ZBLOCK > $ZLATEST
ipfs name publish --key=zchain $ZBLOCK > /dev/null 2>&1
ipfs files mkdir /zarchive > /dev/null 2>&1
ipfs files cp /zlatest /zarchive/$(date -u +%s)-$(ipfs files stat /zlatest | head -n 1) > /dev/null 2>&1
ipfs files rm /zlatest > /dev/null 2>&1
ipfs files cp /ipfs/$ZBLOCK /zlatest > /dev/null 2>&1
else
usage
exit 0
fi
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