Forwarded Header Parser
标准 Forwarded 头
解析 RFC 7239 的 Forwarded 代理链，查看 for / by / host / proto 每一跳的值。
Hop #1
for203.0.113.43
protohttps
hostapp.geekformat.com
Hop #2
for10.0.0.9
byingress
X-Forwarded-* 兼容头
很多网关仍然在用 X-Forwarded-For / Host / Proto。这里会按链路顺序拆出客户端和代理地址。
2 个 X-Forwarded-For 节点这类头部只有在可信代理链中才有意义，不能直接当成真实客户端 IP。
#1203.0.113.43
#210.0.0.9
JSON 预览
{
"standardized": [
{
"index": 0,
"pairs": {
"for": "203.0.113.43",
"proto": "https",
"host": "app.geekformat.com"
}
},
{
"index": 1,
"pairs": {
"for": "10.0.0.9",
"by": "ingress"
}
}
],
"legacy": {
"x-forwarded-for": [
"203.0.113.43, 10.0.0.9"
],
"x-forwarded-proto": [
"https"
],
"x-forwarded-host": [
"app.geekformat.com"
]
}
}在线拆代理链路，先把转发头看明白。