superagentをプロキシ対応するパッチ(SSL対応:要 tunnel モジュール) original from https://gist.github.com/2914780

superagent-proxy-patch.diff

--- node_modules/tower/node_modules/superagent/lib/node/index.js.org    2012-06-03 04:27:15.000000000 +0900
+++ node_modules/tower/node_modules/superagent/lib/node/index.js        2012-06-13 10:07:53.142584979 +0900
@@ -458,6 +458,29 @@
   // initiate request
   var mod = exports.protocols[url.protocol];

+  // use proxy
+  if(process.env.http_proxy) {
+    var proxy = parse(process.env.http_proxy);
+    if (url.protocol === 'http:') {
+      options.port = proxy.port;
+      options.path = this.url;
+      options.host = proxy.hostname;
+    } else if (url.protocol === 'https:') {
+      // need node-tunnel module for SSL proxy
+      // for global install use 'sudo npm install -g tunnel'
+      try {
+       options.agent = require('tunnel').httpsOverHttp({
+         proxy: {
+           host: proxy.hostname,
+           port: proxy.port
+         }
+       });
+      } catch(e) {
+       console.error(e.message);
+      }
+    }
+  }
+
   // request
   var req = this.req = mod.request(options);