在 python 中使用 HTTPS 代理发出请求答案

【问题标题】：Make request with HTTPS proxy in python在 python 中使用 HTTPS 代理发出请求
【发布时间】：2021-02-17 17:38:10
【问题描述】：

我的 VPN 提供商 (NordVP) 刚刚关闭了其代理服务器上的所有 HTTP 端口。我可以通过cURL 确认 HTTPS 端口工作正常，例如以下工作：

curl -x https://proxy_server:89 --proxy-user username:password -L url

虽然这刚刚停止工作：

curl -x http://proxy_server:80 --proxy-user username:password -L url

两天前它曾经工作过。在 python 中，我尝试使用 request 模块发出 HTTP 请求：

import requests
proxies = {
  "https":"https://user:password@proxy_server:port"
}

response = requests.get("https://api64.ipify.org?format=json", proxies=proxies)
print(response.text)

但我收到以下 3 个错误：

ConnectionResetError: [WinError 10054] An existing connection was forcibly closed by the remote host

During handling of the above exception, another exception occurred:

...

MaxRetryError: HTTPSConnectionPool(host='api64.ipify.org', port=443): Max retries exceeded with url: /?format=json (Caused by ProxyError('Cannot connect to proxy.', ConnectionResetError(10054, 'An existing connection was forcibly closed by the remote host', None, 10054, None)))

During handling of the above exception, another exception occurred:

...

ProxyError: HTTPSConnectionPool(host='api64.ipify.org', port=443): Max retries exceeded with url: /?format=json (Caused by ProxyError('Cannot connect to proxy.', ConnectionResetError(10054, 'An existing connection was forcibly closed by the remote host', None, 10054, None)))

我看到有一个关于该主题的非常古老的问题，但它似乎不再相关。

【问题讨论】：

标签： python https proxy

【解决方案1】：

这里有一个解决方法：

Authenticator proxyAuthenticator = new Authenticator() {
    @Override public Request authenticate(Route route, Response response) throws IOException {
        String credential = Credentials.basic(username, password);
        return response.request().newBuilder().header("Proxy-Authorization", credential).build();
    }
};

OkHttpClient client = new OkHttpClient.Builder()
        .proxy(new Proxy(Proxy.Type.HTTP, new InetSocketAddress(proxyHost, proxyPort)))
        .proxyAuthenticator(proxyAuthenticator);
        .socketFactory(new DelegatingSocketFactory(SSLSocketFactory.getDefault()))
        .build();

在 Android 上将此添加到您的 gradle：

implementation 'org.conscrypt:conscrypt-android:2.5.0'

这个给你的应用onCreate():

Security.insertProviderAt(Conscrypt.newProvider(), 1);

https://github.com/square/okhttp/issues/6561

【讨论】：