1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
|
#!/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 $1}')"
PROGRAM="$(basename $0)"
set -xe
# Logging patch
logit(){
ak-logthis "<$PROGRAM>" "$1" "$2"
}
# Below, the usage information
usage(){
echo ""
echo "Usage:"
echo "$PROGRAM <action> <data_file>"
echo ""
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 ""
echo "#TODO:"
echo "implement flags to change the inputs so we can manufacture"
echo "zblocks directly from IPFS hashes refering to blocks."
}
main(){
# We check firstly if the encapsulated value of the "ipfs" key has already
# appeared in the zchain.
TO_CHECK="$(cat $MESSAGE | jq | grep ipfs | awk '{print $2}' | sed -e 's/"//g;s/,//g')"
ak-enter | jq | grep ipfs | awk '{print $2}' | sed -e 's/"//g;s/,//g' | sort | uniq > tempisalreadythere
while IFS="" read -r p || [ -n "$p" ]
do
if [ "$p" == "$TO_CHECK" ]
then
logit "[ERROR]" "Value $TO_CHECK already mentioned on the zchain"
exit 1
fi
done < tempisalreadythere
rm tempisalreadythere
logit "[INFO]" "We are doing" $ACTION "with content" $MESSAGE
# We add it to IPFS
MESSAGE_HASH=$(ak-ipfs-add $MESSAGE)
# We create a detached and armor signature of it
MESSAGE_SIGN_FILE=$MESSAGE".asc"
gpg2 --detach-sign --sign-with $FINGERPRINT --armor --output $MESSAGE_SIGN_FILE $MESSAGE
# We add the signature to IPFS
MESSAGE_SIGNATURE=$(ak-ipfs-add $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 $FINGERPRINT
GPG_PUB_KEY=$(ak-ipfs-add $KEY)
# Acquire last block of information, to chain this one with previous posted
PREVIOUS=$(ak-ipfs-files-stat /zlatest | head -n 1)
# We create a block of json like this:
printf '{"timestamp":"%s","action":"%s","data":"%s","detach":"%s","gpg":"%s","previous":"%s"}' $(date -u +%s) $ACTION $MESSAGE_HASH $MESSAGE_SIGNATURE $GPG_PUB_KEY $PREVIOUS > block
BLOCK="block"
BLOCK_SIG=$BLOCK".asc"
# We have a block now, so we sign it
gpg2 --detach-sign --sign-with $FINGERPRINT --armor --output $BLOCK_SIG $BLOCK
# We now add the signature to IPFS
BLOCK_SIGNATURE=$(ak-ipfs-add $BLOCK_SIG)
# We also add the block!
BLOCK=$(ak-ipfs-add $BLOCK)
# So we now do the think almost again
printf '{"block":"%s","block_signature":"%s"}' $BLOCK $BLOCK_SIGNATURE > zblock
ZBL="zblock"
# and we add it on IPFS
ZBLOCK=$(ak-ipfs-add $ZBL)
echo $ZBLOCK
}
if [ ! -z $2 ];
then
MESSAGE="$2"
ACTION="$1"
if [ -f "$MESSAGE" ]; then
main
else
logit "[ERROR]" "File does not exist. Aborting..."
exit 1
fi
# cat $PWD/zblock | jq -M
# Optional or extending with
# python send_as_ak_tx $ZBLOCK
# or for "offline" use
echo $ZBLOCK > $ZLATEST
ak-ipfs-name-publish --key=zchain $ZBLOCK > /dev/null 2>&1
if [ "$?" -ne 0 ]
then
logit "[ERROR]" "Failed publishing ZBLOCK: $ZBLOCK"
exit 1
fi
ak-ipfs-files-ls /zarchive > /dev/null 2>&1
if [ "$?" -ne 0 ]
then
logit "[WARNING]" "/zarchive does not exist"
ak-ipfs-files-mkdir /zarchive > /dev/null 2>&1
if [ "$?" -ne 0 ]
then
logit "[ERROR]" "Could not create /zarchive directory. Aborting."
exit 1
fi
fi
ak-ipfs-files-cp /zlatest /zarchive/$(date -u +%s)-$(ak-ipfs-files-stat /zlatest | head -n 1) > /dev/null 2>&1
if [ "$?" -ne 0 ]
then
logit "[ERROR]" "Could not back up previous /zlatest"
exit 1
fi
ak-ipfs-files-rm /zlatest > /dev/null 2>&1
if [ "$?" -ne 0 ]
then
logit "[ERROR]" "Could not remove previous /zlatest"
exit 1
fi
ak-ipfs-files-cp /ipfs/$ZBLOCK /zlatest > /dev/null 2>&1
if [ "$?" -ne 0 ]
then
logit "[ERROR]" "Could not copy $ZBLOCK to /zlatest"
exit 1
fi
else
usage
exit 0
fi
|
