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Improve error handling and reporting in setup-lens-proxy

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Signed-off-by: Sebastian Malton <sebastian@malton.name>
This commit is contained in:
Sebastian Malton 2023-01-13 11:07:16 -05:00
parent de1e3919eb
commit 73469c4833
1 changed files with 59 additions and 47 deletions
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106
src/main/start-main-application/runnables/setup-lens-proxy.injectable.ts
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@ -12,68 +12,80 @@ import { beforeApplicationIsLoadingInjectionToken } from "../runnable-tokens/bef
import buildVersionInjectable from "../../vars/build-version/build-version.injectable";
import initializeBuildVersionInjectable from "../../vars/build-version/init.injectable";
import lensFetchInjectable from "../../../common/fetch/lens-fetch.injectable";
import initAuthHeaderStateInjectable from "../../../features/auth-header/main/init-state.injectable";
import { hasTypedProperty, isObject, isString, json } from "../../../common/utils";
const setupLensProxyInjectable = getInjectable({
id: "setup-lens-proxy",
instantiate: (di) => {
const lensProxy = di.inject(lensProxyInjectable);
const exitApp = di.inject(exitAppInjectable);
const logger = di.inject(loggerInjectable);
const isWindows = di.inject(isWindowsInjectable);
const showErrorPopup = di.inject(showErrorPopupInjectable);
const buildVersion = di.inject(buildVersionInjectable);
const lensFetch = di.inject(lensFetchInjectable);
instantiate: (di) => ({
id: "setup-lens-proxy",
run: async () => {
const lensProxy = di.inject(lensProxyInjectable);
const exitApp = di.inject(exitAppInjectable);
const logger = di.inject(loggerInjectable);
const isWindows = di.inject(isWindowsInjectable);
const showErrorPopup = di.inject(showErrorPopupInjectable);
const buildVersion = di.inject(buildVersionInjectable);
const lensFetch = di.inject(lensFetchInjectable);
return {
id: "setup-lens-proxy",
run: async () => {
try {
logger.info("🔌 Starting LensProxy");
await lensProxy.listen(); // lensProxy.port available
} catch (error) {
const message = error instanceof Error ? error.message : "unknown error";
const showProxyError = (error: string) => {
const hostsPath = isWindows
? "C:\\windows\\system32\\drivers\\etc\\hosts"
: "/etc/hosts";
const message = [
`Failed connection test: ${error}`,
"Check to make sure that no other versions of Lens are running",
`Check ${hostsPath} to make sure that it is clean and that the localhost loopback is at the top and set to 127.0.0.1`,
"If you have HTTP_PROXY or http_proxy set in your environment, make sure that the localhost and the ipv4 loopback address 127.0.0.1 are added to the NO_PROXY environment variable.",
].join("\n\n");
showErrorPopup("Lens Error", `Could not start proxy: ${message}`);
logger.error(`🛑 LensProxy: failed connection test: ${error}`);
showErrorPopup("Lens Proxy Error", message);
exitApp();
};
return exitApp();
}
try {
logger.info("🔌 Starting LensProxy");
await lensProxy.listen(); // lensProxy.port available
} catch (error) {
const message = error instanceof Error ? error.message : "unknown error";
// test proxy connection
try {
logger.info("🔎 Testing LensProxy connection ...");
const versionResponse = await lensFetch("/version");
showErrorPopup("Lens Error", `Could not start proxy: ${message}`);
exitApp();
const { version: versionFromProxy } = await versionResponse.json() as { version: string };
return;
}
if (buildVersion.get() !== versionFromProxy) {
logger.error("Proxy server responded with invalid response");
logger.info("🔎 Testing LensProxy connection ...");
const versionResponse = await lensFetch("/version");
return exitApp();
}
if (versionResponse.status !== 200) {
return showProxyError(`failed to GET /version: ${versionResponse.statusText}`);
}
logger.info("⚡ LensProxy connection OK");
} catch (error) {
logger.error(`🛑 LensProxy: failed connection test: ${error}`);
const body = await versionResponse.text();
const { isOk, value, error } = json.parse(body);
const hostsPath = isWindows
? "C:\\windows\\system32\\drivers\\etc\\hosts"
: "/etc/hosts";
const message = [
`Failed connection test: ${error}`,
"Check to make sure that no other versions of Lens are running",
`Check ${hostsPath} to make sure that it is clean and that the localhost loopback is at the top and set to 127.0.0.1`,
"If you have HTTP_PROXY or http_proxy set in your environment, make sure that the localhost and the ipv4 loopback address 127.0.0.1 are added to the NO_PROXY environment variable.",
];
if (!isOk) {
return showProxyError(`failed to parse response body ${error.cause} for "${error.text}"`);
}
showErrorPopup("Lens Proxy Error", message.join("\n\n"));
if (!isObject(value) || !hasTypedProperty(value, "version", isString)) {
return showProxyError(`invalid data returned: "${body}"`);
}
return exitApp();
}
},
runAfter: di.inject(initializeBuildVersionInjectable),
};
},
if (buildVersion.get() !== value.version) {
return showProxyError("Proxy server response with unexpeced version");
}
logger.info("⚡ LensProxy connection OK");
},
runAfter: [
di.inject(initializeBuildVersionInjectable),
di.inject(initAuthHeaderStateInjectable),
],
}),
injectionToken: beforeApplicationIsLoadingInjectionToken,
});