Return new apiTarget with long timeout for watch requests

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

patches/http-proxy+1.17.0.patch

@@ -1,22 +0,0 @@
-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

@@ -102,13 +102,20 @@ export class ContextHandler {
     }
   }
 
-  public async getApiTarget(timeout: number) {
+  public async getApiTarget(isWatchRequest = false) {
-    if (this.apiTarget) {
+    if (this.apiTarget && !isWatchRequest) {
-      this.apiTarget.timeout = timeout
       return this.apiTarget
     }
+    const timeout = isWatchRequest ? 4 * 60 * 60 * 1000 : 30000 // 4 hours for watch request, 30 seconds for the rest
+    const apiTarget = await this.newApiTarget(timeout)
+    if (!isWatchRequest) {
+      this.apiTarget = apiTarget
+    }
+    return apiTarget
+  }
 
-    this.apiTarget = {
+  protected async newApiTarget(timeout: number) {
+    return {
       changeOrigin: true,
       timeout: timeout,
       headers: {
@@ -121,8 +128,6 @@ export class ContextHandler {
         path: this.clusterUrl.path
       },
     }
-
-    return this.apiTarget
   }
 
   protected async resolveProxyPort(): Promise<number> {

src/main/proxy.ts

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