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#!/bin/bash
PROGRAM="$(basename $0)"
source $AK_LIBDIR/_ak_logit
source $AK_LIBDIR/_ak_ipfs
source $AK_LIBDIR/_ak_gpg
if [ ! -d $AK_WORKDIR/ipfs ]
then
mkdir $AK_WORKDIR/ipfs
fi
if [ ! -z "$1" ] && [ ! -z "$2" ]
then
echo -n "$1" | grep -e 'Qm.\{44\}' >/dev/null
if [ "$?" -ne 0 ]
then
logit "ERROR" "Invalid hash format for $1"
exit 1
fi
_ak_ipfs_cat $1 > /dev/null
if [ "$?" -ne 0 ]
then
logit "ERROR" "Error while reading $1"
exit 1
fi
_ak_ipfs_cat $1 | jq -M > /dev/null
if [ "$?" -ne 0 ]
then
logit "ERROR" "Error while parsing JSON for $1"
exit 1
fi
_ak_ipfs_cat $1 | jq | grep ipfs > /dev/null
if [ "$?" -ne 0 ]
then
logit "ERROR" "Error while extracting data from JSON for $1"
exit 1
fi
DATA="$(_ak_ipfs_cat $1 | jq | grep ipfs | sed -e 's/"ipfs": "//g; s/[",]//g; s/ //g')"
if [ "$?" -ne 0 ]
then
logit "ERROR" "Error while extracting data from JSON for $1"
exit 1
fi
_ak_ipfs_cat $1 | jq | grep detach > /dev/null
if [ "$?" -ne 0 ]
then
logit "ERROR" "Error while extracting data from JSON for $1"
exit 1
fi
DETACH="$(_ak_ipfs_cat $1 | jq | grep detach | sed -e 's/"detach": "//g; s/[",]//g; s/ //g')"
if [ "$?" -ne 0 ]
then
logit "ERROR" "Error while extracting data from JSON for $1"
exit 1
fi
echo -n "$2" | grep -e 'Qm.\{44\}' >/dev/null
if [ "$?" -ne 0 ]
then
logit "ERROR" "Invalid hash format for $2"
exit 1
fi
gpg="$2"
_ak_ipfs_get $gpg > /dev/null 2>&1
if [ "$?" -ne 0 ]
then
logit "ERROR" "Could not get GPG key: $gpg"
exit 1
fi
_ak_gpg_key_import_from_file $gpg > /dev/null 2>&1
if [ "$?" -ne 0 ]
then
logit "ERROR" "Could not import GPG key: $gpg"
exit 1
fi
_ak_ipfs_get $DETACH > /dev/null 2>&1
if [ "$?" -ne 0 ]
then
logit "ERROR" "Error while getting signature: $DETACH for data: $DATA"
exit 1
fi
mv $DETACH $DATA.asc
logit "INFO" "Block signature downloaded"
_ak_ipfs_get $DATA > /dev/null 2>&1
if [ "$?" -ne 0 ]
then
logit "ERROR" "Error while getting data: $DATA"
exit 1
fi
logit "INFO" "Data downloaded: $DATA"
_ak_gpg_verify_signature $DATA.asc $DATA > /dev/null 2>&1
if [ "$?" -ne 0 ]
then
logit "ERROR" "Error while verifying signature for $DATA"
exit 1
fi
mv $DATA $AK_WORKDIR/ipfs
logit "INFO" "Block signature verified"
echo -n '"data":"'$1'","'$1'":'$(_ak_ipfs_cat $1|jq -M -c)','
exit 0
else
echo "Usage: $PROGRAM HASH GPG"
exit 1
fi
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