initial commit

proxy.ts

@@ -0,0 +1,43 @@
+import * as url from 'url';
+
+export function getProxyUrl(reqUrl: url.Url): url.Url {
+    let usingSsl = reqUrl.protocol === 'https:';
+
+    let noProxy: string = process.env["no_proxy"] || 
+                            process.env["NO_PROXY"];
+
+    let bypass: boolean;
+    if (noProxy && typeof noProxy === 'string') {
+        let bypassList = noProxy.split(',');
+        for (let i=0; i < bypassList.length; i++) {
+            let item = bypassList[i];
+            if (item && 
+                typeof item === "string" && 
+                reqUrl.host.toLocaleLowerCase() == item.trim().toLocaleLowerCase()) {
+                    bypass = true;
+                    break;
+            }
+        }            
+    }
+
+    let proxyUrl: url.Url;
+    if (bypass) {
+        return proxyUrl;
+    }
+    
+    let proxyVar: string;
+    if (usingSsl) {
+        proxyVar = process.env["https_proxy"] ||
+                    process.env["HTTPS_PROXY"];
+        
+    } else {
+        proxyVar = process.env["http_proxy"] ||
+                    process.env["HTTP_PROXY"];
+    }
+    
+    if (proxyVar) {
+        proxyUrl = url.parse(proxyVar);
+    }
+
+    return proxyUrl;
+}