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Harden environment lookup

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Shivam Mathur
2026-05-16 00:07:19 +05:30
parent 27b75bd953
commit b76777ed55
3 changed files with 18 additions and 9 deletions
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6
__tests__/utils.test.ts
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@@ -11,6 +11,12 @@ describe('Utils tests', () => {
expect(await utils.readEnv('TEST')).toBe('setup-php');
expect(await utils.readEnv('test_hyphen')).toBe('setup-php');
expect(await utils.readEnv('TEST_HYPHEN')).toBe('setup-php');
expect(await utils.readEnv('test invalid')).toBe('');
process.env['conflict_hyphen'] = 'setup-php';
process.env['conflict-hyphen'] = 'wrong';
expect(await utils.readEnv('conflict_hyphen')).toBe('setup-php');
delete process.env['conflict_hyphen'];
delete process.env['conflict-hyphen'];
expect(await utils.readEnv('undefined')).toBe('');
});

2
dist/index.js vendored
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File diff suppressed because one or more lines are too long

19
src/utils.ts
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@@ -9,16 +9,19 @@ import * as fetch from './fetch';
* @param property
*/
export async function readEnv(property: string): Promise<string> {
if (!/^[A-Za-z0-9_-]+$/.test(property)) {
return '';
}
const property_lc: string = property.toLowerCase();
const property_uc: string = property.toUpperCase();
return (
process.env[property] ||
process.env[property_lc] ||
process.env[property_uc] ||
process.env[property_lc.replace('_', '-')] ||
process.env[property_uc.replace('_', '-')] ||
''
);
const candidates = [
property,
property_lc,
property_uc,
property_lc.replace('_', '-'),
property_uc.replace('_', '-')
].filter((value, index, array) => array.indexOf(value) === index);
return candidates.map(name => process.env[name] || '').find(Boolean) || '';
}
/**