get-ip-from-gw-ZTE-F450G.sh

#!/bin/sh
# ZTE F450G 垃圾， WebUI 有漏洞，LAN 上 ajax 调用的 URI 并不需要认证。
# 
# 获取路由信息的 URI 返回 json 如下:
# {"macAddr":"aa:bb:cc:dd:ee:ff","productClass":"F450G","wanIpAddr":"xxx.xxx.xxx.xxx","swVer":"V2.0.0P1T1sh","flashSize":256,"dnsIpAddr":"xxx.xxx.xxx.xxx","ramSize":467,"Status":"0","lanIpAddr":"192.168.1.1","runTime":"1619682","CmdType":"GET_GW_INFO"}
#
# wanIpAddr 即是我们需要的外部 IP。
# 
# 格式化后:
# {
#   "macAddr": "aa:bb:cc:dd:ee:ff",
#   "productClass": "F450G",
#   "wanIpAddr": "xxx.xxx.xxx.xxx",
#   "swVer": "V2.0.0P1T1sh",
#   "flashSize": 256,
#   "dnsIpAddr": "xxx.xxx.xxx.xxx",
#   "ramSize": 467,
#   "Status": "0",
#   "lanIpAddr": "192.168.1.1",
#   "runTime": "1619707",
#   "CmdType": "GET_GW_INFO"
# }
curl -s -d "jsonCfg=%7B'RPCMethod'%3A'Post'%2C+'Parameter'%3A%7B'CmdType'%3A'GET_GW_INFO'%7D%7D" http://192.168.1.1/common_page/gatewayManage.lua | grep wanIpAddr | sed 's/.*"wanIpAddr":"\([0-9\.]*\)".*/\1/'

差点以为是获取超管密码了