本文为转载
原文链接:https://my.oschina.net/catandpaperball/blog/483315?nocache=1524498352107
现在工作电脑是Ubuntu14.04的,平常使用的数据库客户端工具是navicat(不喜欢mysql workbench),但navicat是一款商业软件,premium版在安装14天后就无法使用了,将个人目录下的.navicat目录删掉才行(网上也有人说将.navicat目录下的system.reg删掉即可,我试过不行),但一些配置信息也会一同删掉,得重新配置,不胜其烦,决定试试看能不能修改navicat的过期时间。
进入.navicat目录,逐步查看,编辑和删除system.reg, user.reg, userdef.reg,最终将目标锁定在user.reg文件,下面一段代码记录了时间信息。
[Software\\Classes\\CLSID\\{34333022-E79C-57CB-721A-AC00E0CF8464}\\Info] 1437704549
"3433"="CE"
[Software\\Classes\\CLSID\\{4B436C50-3D26-316A-ADF7-0D0ABE54702D}\\Info] 1437704549
"4B43"="88"
[Software\\Classes\\CLSID\\{6F154612-5C6D-8BA8-3B84-6C8A1AB59144}\\Info] 1437704549
"6F15"="D3"
[Software\\Classes\\CLSID\\{746E91AB-0CD9-7ACD-EA69-DB12798BFDA2}\\Info] 1437704549
"746E"=""
[Software\\Classes\\CLSID\\{7EDC6314-1F7D-6E46-04EE-4733B89DE9FB}\\Info] 1437704549
"7EDC"="EB"
[Software\\Classes\\CLSID\\{987C4F4A-4DE6-82AE-1735-6A414C7DDE35}\\Info] 1437704549
"987C"=""
[Software\\Classes\\CLSID\\{D84DDFBD-0FCF-9793-B20E-59220F8DBCC7}\\Info] 1437704549
"D84D"="FF"
[Software\\Classes\\CLSID\\{DCB766E2-1DD6-B071-F5F1-DAD7DEB25281}\\Info] 1437704549
"DCB7"="FF"
[Software\\Classes\\CLSID\\{F39D6149-C8C8-9DA7-6C2B-764E443E0BF4}\\Info] 1437704549
"F39D"="D1"
[Software\\Classes\\CLSID\\{FD9023CC-F5C6-DDD1-8986-C51B9A3B3957}\\Info] 1437704549
"FD90"="3D"
提取了两个例子,如下:
"3433"="8F"
"4B43"="C8"
"6F15"="41"
"746E"=""
"7EDC"="BF"
"987C"=""
"D84D"="38"
"DCB7"="80"
"F39D"="BF"
"FD90"="4D"
安装时间:2015-07-24(1437667200,十六进制:0X55B10F80)
过期时间:2015-08-07(1438876800,十六进制:0X55C38480)
"3433"="CE"
"4B43"="88"
"6F15"="D3"
"746E"=""
"7EDC"="EB"
"987C"=""
"D84D"="5B"
"DCB7"="FF"
"F39D"="D1"
"FD90"="3D"
安装时间:2015-07-20(1437321600,十六进制:0X55ABC980)
过期时间:2015-08-03(1438531200,十六进制:0X55BE3E80)
貌似需要花点时间从上面的例子中找出过期日期的逻辑,先记录下来等以后再处理。
临时的做法:写了个python脚本,先重命名原本的user.reg,启动navicat再关闭,将新生成的user.reg中关于日期的代码复制出来替换到旧文件,旧文件再覆盖新文件即可。重新启动navicat,可以发现过期时间会是当前的14天后。代码如下:
#!/usr/bin/env python
# encoding: utf-8
import subprocess, time, re, os
def main():
new_file = "/path/to/.navicat/user.reg"
bak_file = "/path/to/.navicat/user.reg.bak"
if os.path.isfile(new_file):
os.rename(new_file, bak_file)
#os.remove(new_filed)
pid = get_navicat_pid()
if pid > 0 and kill_navicat(pid):
time.sleep(3)
if os.path.isfile(new_file) and os.path.isfile(bak_file):
new = open(new_file, "r")
old = open(bak_file, "r")
new_data = new.read()
old_data = old.read()
new.close()
old.close()
p_list = ['"3433"=".*"', '"4B43"=".*"', '"6F15"=".*"', '"7EDC"=".*"', '"D84D"=".*"', '"DCB7"=".*"', '"F39D"=".*"', '"FD90"=".*"']
for p in p_list:
res = re.findall(p, new_data)
if len(res) > 0:
old_data = re.sub(p, res[0], old_data)
new = open(new_file, "w")
new.write(old_data)
new.close()
# 获取navicat进程pid
def get_navicat_pid(flag=False):
start_cmd = "/path/to/navicat"
command = "ps -ef|grep -v grep|grep /path/to/navicat111_premium_cs/Navicat/Navicat.exe|awk '{print $2}'"
sub = subprocess.Popen(command, shell=True, stdout=subprocess.PIPE, stderr=subprocess.STDOUT)
out, err = sub.communicate()
pid = 0
if err is None and len(out)>0:
pattern = re.compile(r"\s*")
out_list = pattern.split(out.strip())
if 1 == len(out_list) and out_list[0].isdigit():
pid = int(out_list[0])
elif flag is False:
sub = subprocess.Popen(start_cmd, shell=True, stdout=open("/dev/null", "w"), stderr=subprocess.STDOUT)
out, err = sub.communicate()
time.sleep(5)
return get_navicat_pid(flag=True)
return pid
# 结束navicat进程
def kill_navicat(pid):
cmd = "kill "+str(pid)
sub = subprocess.Popen(cmd, shell=True, stdout=subprocess.PIPE, stderr=subprocess.STDOUT)
out, err = sub.communicate()
return True if err is None else False
if __name__ == "__main__":
main()