Files
wechat-dump/legacy/decrypt-db.sh
T
2020-06-26 19:01:18 -07:00

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#!/bin/bash -e
# File: decrypt-db.sh
# Date: Tue Jun 16 22:23:13 2015 +0800
source compatibility.sh
MSGDB=$1
imei=$2
uin=$3
output=decrypted.db
if [[ -z "$1" || -z "$2" || -z "$3" ]]; then
echo "Usage: $0 <path to EnMicroMsg.db> <imei> <uin>"
exit 1
fi
if [[ -f $output ]]; then
echo -n "$output already exists. removed? (y/n)"
read r
[[ $r == "y" ]] && rm -v $output || exit 1
fi
KEY=$(echo -n "$imei$uin" | $MD5SUM | cut -b 1-7)
echo "KEY: $KEY"
echo "Dump decrypted database... "
# https://github.com/sqlcipher/sqlcipher/commit/e4b66d6cc8a2b7547a32ff2c3ac52f148eba3516
sqlcipher "$MSGDB" << EOF
PRAGMA key='$KEY';
PRAGMA cipher_compatibility = 1;
ATTACH DATABASE "$output" AS db KEY "";
SELECT sqlcipher_export("db");
DETACH DATABASE db;
EOF
echo "Database successfully dumped to $output"