proxy 代理异常，报错连接超时

[charles-liming]

使用了proxy 功能，一直连接超时，下边是日志，就是显示已经走了代理，proxy IP: http://8ec525e5ed1f4586:30102906103665@49.70.150.136:31149, 但是超时，然后我实际测试了代理地址是可用的，测试方式是curl -x http://8ec525e5ed1f4586:158295654881503@117.68.38.165:49668 -I http://47.93.177.135/123.jpg 是可以用的。

2024/05/16 23:41:28 [error] 6#6: *30 lua tcp socket read timed out, client: 172.17.208.11, server: _, request: "GET /?url=http://47.93.177.135/123.jpg HTTP/1.1", host: "172.17.243.208"
2024/05/16 23:41:28 [error] 6#6: *30 [lua] proxy_request.lua:179: proxy_request(): failed to request via proxy: timeout, proxy IP: http://8ec525e5ed1f4586:30102906103665@49.70.150.136:31149, client: 172.17.208.11, server: _, request: "GET /?url=http://47.93.177.135/123.jpg HTTP/1.1", host: "172.17.243.208"
2024/05/16 23:42:28 [error] 6#6: *30 lua tcp socket read timed out, client: 172.17.208.11, server: _, request: "GET /?url=http://47.93.177.135/123.jpg HTTP/1.1", host: "172.17.243.208"
2024/05/16 23:42:28 [error] 6#6: *30 [lua] proxy_request.lua:179: proxy_request(): failed to request via proxy: timeout, proxy IP: http://8ec525e5ed1f4586:250299687038506@180.118.241.215:34324, client: 172.17.208.11, server: _, request: "GET /?url=http://47.93.177.135/123.jpg HTTP/1.1", host: "172.17.243.208"
{ "timestamp": "2024-05-16T23:42:28+08:00", "remote_addr": "172.17.208.11", "body_bytes_sent": 57, "request_time": 121.731, "response_status": 200, "request": "GET /?url=http://47.93.177.135/123.jpg HTTP/1.1", "request_method": "GET", "host": "172.17.243.208","upstream_addr": "","args": "url=http://47.93.177.135/123.jpg","http_x_forwarded_for": "","http_referrer": "", "http_user_agent": "curl/7.61.1", "http_version": "HTTP/1.1", "proxy_ip": "http://8ec525e5ed1f4586:250299687038506@180.118.241.215:34324", "nginx_access": true }
2024/05/16 23:42:28 [error] 6#6: *30 attempt to set status 500 via ngx.exit after sending out the response status 200, client: 172.17.208.11, server: _, request: "GET /?url=http://47.93.177.135/123.jpg HTTP/1.1", host: "172.17.243.208"

[charles-liming]

我的代码，如下
144 local user, pass, host, port = string.match(proxy_ip.http, "http://([^:]+):([^@]+)@([^:]+):(%d+)")
145
146 -- 确保端口号是数字
147 port = tonumber(port)
148 if not port then
149 ngx.log(ngx.ERR, "Invalid port number.")
150 return
151 end
152
153 -- 创建代理认证字符串
154 local credentials = ngx.encode_base64(user .. ":" .. pass)
155 local proxy_auth = "Basic " .. credentials
156
157 -- 设置代理
158 httpc:set_proxy_options({
159 http_proxy = "http://" .. host .. ":" .. port,
160 http_proxy_authorization = proxy_auth
161 })
162
163
164 local res, err = httpc:request_uri(upstream_url, {
165 method = method,
166 headers = {
167 ["Host"] = host,
168 ["User-Agent"] = "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/58.0.3029.110 Safari/537.3",
169 ["Accept"] = "/",
170 ["Referer"] = upstream_url,
171 ["Connection"] = "keep-alive",
172 },
173 body = ngx.req.get_body_data(),
174 ssl_verify = false,
175 -- proxy = proxy_ip.http -- Assuming you want to use the HTTP proxy
176 })