xcraft-global-agent
Version:
Global HTTP/HTTPS proxy configurable using environment variables.
33 lines (24 loc) • 967 B
text/typescript
import matcher from 'matcher';
import {
UnexpectedStateError,
} from '../errors';
export default (subjectUrl: string, noProxy: string) => {
const subjectUrlTokens = new URL(subjectUrl);
const rules = noProxy.split(/[\s,]+/);
for (const rule of rules) {
const ruleMatch = rule
.replace(/^(?<leadingDot>\.)/, '*')
.match(/^(?<hostname>.+?)(?::(?<port>\d+))?$/);
if (!ruleMatch || !ruleMatch.groups) {
throw new UnexpectedStateError('Invalid NO_PROXY pattern.');
}
if (!ruleMatch.groups.hostname) {
throw new UnexpectedStateError('NO_PROXY entry pattern must include hostname. Use * to match any hostname.');
}
const hostnameIsMatch = matcher.isMatch(subjectUrlTokens.hostname, ruleMatch.groups.hostname);
if (hostnameIsMatch && (!ruleMatch.groups || !ruleMatch.groups.port || subjectUrlTokens.port && subjectUrlTokens.port === ruleMatch.groups.port)) {
return true;
}
}
return false;
};