38 lines
1022 B
Plaintext
38 lines
1022 B
Plaintext
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// @flow
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import {
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parse as parseUrl,
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} from 'url';
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import matcher from 'matcher';
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import {
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UnexpectedStateError,
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} from '../errors';
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export default (subjectUrl: string, noProxy: string) => {
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const subjectUrlTokens = parseUrl(subjectUrl);
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const rules = noProxy.split(/[\s,]+/);
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for (const rule of rules) {
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const ruleMatch = rule
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.replace(/^(?<leadingDot>\.)/, '*')
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.match(/^(?<hostname>.+?)(?::(?<port>\d+))?$/);
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if (!ruleMatch || !ruleMatch.groups) {
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throw new UnexpectedStateError('Invalid NO_PROXY pattern.');
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}
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if (!ruleMatch.groups.hostname) {
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throw new UnexpectedStateError('NO_PROXY entry pattern must include hostname. Use * to match any hostname.');
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}
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const hostnameIsMatch = matcher.isMatch(subjectUrlTokens.hostname, ruleMatch.groups.hostname);
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if (hostnameIsMatch && (!ruleMatch.groups || !ruleMatch.groups.port || subjectUrlTokens.port && subjectUrlTokens.port === ruleMatch.groups.port)) {
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return true;
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}
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}
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return false;
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};
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