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sysinfo: cache the ipv4/ipv6 for 5 mins

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reduces burden on our api.cloudron.io servers

initially, i just implemented a simple value cache but the email UI, queries all the
domains in parallel. without the request caching, the cache is hardly ever used.
This commit is contained in:
Girish Ramakrishnan
2023-03-26 18:53:10 +02:00
parent 73d8e71861
commit ff3029f1fb
1 changed files with 30 additions and 10 deletions
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40
src/sysinfo/generic.js
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@@ -13,17 +13,26 @@ const assert = require('assert'),
safe = require('safetydance'),
superagent = require('superagent');
const gCache = { ipv4: {}, ipv6: {} }; // each has { timestamp, value, request }
async function getServerIPv4(config) {
assert.strictEqual(typeof config, 'object');
if (process.env.BOX_ENV === 'test') return '127.0.0.1';
debug('getServerIPv4: getting server IP');
if (gCache.ipv4.value && (Date.now() - gCache.ipv4.timestamp <= 5 * 60 * 1000)) return gCache.ipv4.value;
const [networkError, response] = await safe(superagent.get('https://ipv4.api.cloudron.io/api/v1/helper/public_ip')
.timeout(30 * 1000)
.retry(2)
.ok(() => true));
let request = gCache.ipv4.request; // allow reuse for parallel requests
if (!request) {
debug('getServerIPv4: querying ipv4.api.cloudron.io to get server IPv4');
request = superagent.get('https://ipv4.api.cloudron.io/api/v1/helper/public_ip').timeout(30 * 1000).retry(2).ok(() => true);
gCache.ipv4.request = request;
}
gCache.ipv4.value = null;
const [networkError, response] = await safe(request);
gCache.ipv4.request = null;
if (networkError || response.status !== 200) {
debug('getServerIPv4: Error getting IP', networkError);
@@ -35,6 +44,8 @@ async function getServerIPv4(config) {
throw new BoxError(BoxError.EXTERNAL_ERROR, 'Unable to detect IPv4. No IP found in response');
}
gCache.ipv4.value = response.body.ip;
gCache.ipv4.timestamp = Date.now();
return response.body.ip;
}
@@ -43,12 +54,19 @@ async function getServerIPv6(config) {
if (process.env.BOX_ENV === 'test') return '::1';
debug('getServerIPv6: getting server IP');
if (gCache.ipv6.value && (Date.now() - gCache.ipv6.timestamp <= 5 * 60 * 1000)) return gCache.ipv6.value;
const [networkError, response] = await safe(superagent.get('https://ipv6.api.cloudron.io/api/v1/helper/public_ip')
.timeout(30 * 1000)
.retry(2)
.ok(() => true));
let request = gCache.ipv6.request; // allow reuse for parallel requests
if (!request) {
debug('getServerIPv6: querying ipv6.api.cloudron.io to get server IPv6');
request = superagent.get('https://ipv6.api.cloudron.io/api/v1/helper/public_ip').timeout(30 * 1000).retry(2).ok(() => true);
gCache.ipv6.request = request;
}
gCache.ipv6.value = null;
const [networkError, response] = await safe(request);
gCache.ipv6.request = null;
if (networkError || response.status !== 200) {
debug('getServerIPv6: Error getting IP', networkError);
@@ -60,6 +78,8 @@ async function getServerIPv6(config) {
throw new BoxError(BoxError.EXTERNAL_ERROR, 'Unable to detect IPv6. No IP found in response');
}
gCache.ipv6.value = response.body.ip;
gCache.ipv6.timestamp = Date.now();
return response.body.ip;
}