Do not timeout watch requests

Signed-off-by: Lauri Nevala <lauri.nevala@gmail.com>

patches/http-proxy+1.17.0.patch

@@ -0,0 +1,22 @@
+diff --git a/node_modules/http-proxy/lib/http-proxy/passes/web-incoming.js b/node_modules/http-proxy/lib/http-proxy/passes/web-incoming.js
+index 995a0db..a5c37f5 100644
+--- a/node_modules/http-proxy/lib/http-proxy/passes/web-incoming.js
++++ b/node_modules/http-proxy/lib/http-proxy/passes/web-incoming.js
+@@ -50,7 +50,7 @@ module.exports = {
+    */
+ 
+   timeout: function timeout(req, res, options) {
+-    if(options.timeout) {
++    if(options.timeout || options.timeout === 0) {
+       req.socket.setTimeout(options.timeout);
+     }
+   },
+@@ -134,7 +134,7 @@ module.exports = {
+ 
+     // allow outgoing socket to timeout so that we could
+     // show an error page at the initial request
+-    if(options.proxyTimeout) {
++    if(options.proxyTimeout || options.proxyTimeout === 0) {
+       proxyReq.setTimeout(options.proxyTimeout, function() {
+          proxyReq.abort();
+       });

src/main/context-handler.ts

@@ -102,12 +102,15 @@ export class ContextHandler {
     }
   }
 
-  public async getApiTarget() {
-    if (this.apiTarget) { return this.apiTarget }
+  public async getApiTarget(timeout: number) {
+    if (this.apiTarget) {
+      this.apiTarget.timeout = timeout
+      return this.apiTarget
+    }
 
     this.apiTarget = {
       changeOrigin: true,
-      timeout: 30000,
+      timeout: timeout,
       headers: {
         "Host": this.clusterUrl.hostname
       },

src/main/proxy.ts

@@ -130,7 +130,8 @@ export class LensProxy {
     if (req.url.startsWith("/api-kube/")) {
       delete req.headers.authorization
       req.url = req.url.replace("/api-kube", "")
-      return await contextHandler.getApiTarget()
+      const timeout = req.url.includes("watch=") ? 0 : 30000
+      return await contextHandler.getApiTarget(timeout)
     }
   }