how to substitute the https://api.telegram.org end-point with proxy?

[timfong888]

Some clients for other end-points allow me to change the end-point being called with a proxy so that I can instrument each call to the API.

I looked at the conn method but it's private so I cannot access it.

Thoughts?

[atipugin]

Unfortunately, there is no way to do it for now.

[aspotashev]

You can monkey patch like this:

--- /dev/null
+++ b/config/initializers/replace_telegram_api_url.rb
@@ -0,0 +1,16 @@
+module Telegram
+  module Bot
+    class Api
+      def conn
+        url = ENV['TELEGRAM_BOT_API_URL']
+        url ||= 'https://api.telegram.org'
+
+        @conn ||= Faraday.new(url: url) do |faraday|
+          faraday.request :multipart
+          faraday.request :url_encoded
+          faraday.adapter Telegram::Bot.configuration.adapter
+        end
+      end
+    end
+  end
+end

[timfong888]

Could we create a pull request to enable the above but as a config to the method?

[fetsh]

Now we need this!

[atipugin]

Looks like time has come :(

[rikitikitav1]

here we are, guys from Russia)

[aspotashev]

Hey guys,

I don't get how changing the server URL could help fight censorship in Russia. Or are you trying to use an SSH tunnel as a proxy?

For me, replacing real Telegram server (at api.telegram.org) with a mock (at localhost) was necessary in order to run integration tests against the full stack of my Telegram bot.

If you are connecting to a real Telegram but suffer from regional censorship, you can overcome it by

1. Using VPN or
2. Using another type of proxy, e.g. SOCKS5. However Faraday does not support SOCKS5 out of the box. So the easiest way is going to be VPN.

[lenferer]

Hey guys, This https://github.com/atipugin/telegram-bot-ruby/pull/180 resolve problem with proxy. Or you can add to your project same code

require 'socksify'
require 'socksify/http'
module Faraday
  class Adapter
    class NetHttp
      def net_http_connection(env)
        proxy = {uri:  'https://host:port',
                 user: login,
                 password: password,
                 socks: true}
        if proxy
          if proxy[:socks]
            env[:ssl] = {verify: true}
            sock_proxy(proxy)
          else
            env[:ssl] = {verify: false}
            http_proxy(proxy)
          end
        else
          Net::HTTP
        end.new(env[:url].host, env[:url].port)
      end

      private

      def sock_proxy(proxy)
        proxy_uri = URI.parse(proxy[:uri])
        TCPSocket.socks_username = proxy[:user] if proxy[:user]
        TCPSocket.socks_password = proxy[:password] if proxy[:password]
        Net::HTTP::SOCKSProxy(proxy_uri.host, proxy_uri.port)
      end

      def http_proxy(proxy)
        proxy_uri = URI.parse(proxy[:uri])
        Net::HTTP::Proxy(proxy_uri.host,
                         proxy_uri.port,
                         proxy_uri.user,
                         proxy_uri.password)
      end
    end
  end
end

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