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import { isCsrfOriginAllowed } from './csrf-protection'
describe('isCsrfOriginAllowed', () => {
it('should return true when allowedOrigins contains originDomain', () => {
expect(isCsrfOriginAllowed('vercel.com', ['vercel.com'])).toBe(true)
expect(isCsrfOriginAllowed('www.vercel.com', ['www.vercel.com'])).toBe(true)
})
it('should return true when allowedOrigins contains originDomain with matching pattern', () => {
expect(isCsrfOriginAllowed('asdf.vercel.com', ['*.vercel.com'])).toBe(true)
expect(isCsrfOriginAllowed('asdf.vercel.com', ['**.vercel.com'])).toBe(true)
expect(isCsrfOriginAllowed('asdf.jkl.vercel.com', ['**.vercel.com'])).toBe(
true
)
})
it("should correctly handle origins that don't have a TLD (eg for localhost)", () => {
// Single level wildcard
expect(isCsrfOriginAllowed('subdomain.localhost', ['*.localhost'])).toBe(
true
)
expect(isCsrfOriginAllowed('localhost', ['*.localhost'])).toBe(false)
// Multi-level wildcard
expect(isCsrfOriginAllowed('subdomain.localhost', ['**.localhost'])).toBe(
true
)
expect(isCsrfOriginAllowed('a.b.localhost', ['**.localhost'])).toBe(true)
expect(isCsrfOriginAllowed('localhost', ['**.localhost'])).toBe(false)
// Exact match
expect(isCsrfOriginAllowed('localhost', ['localhost'])).toBe(true)
expect(isCsrfOriginAllowed('subdomain.localhost', ['localhost'])).toBe(
false
)
// Multiple patterns
expect(
isCsrfOriginAllowed('subdomain.localhost', ['localhost', '*.localhost'])
).toBe(true)
expect(
isCsrfOriginAllowed('a.b.localhost', [
'localhost',
'*.localhost',
'**.localhost',
])
).toBe(true)
})
it('should return false when allowedOrigins contains originDomain with non-matching pattern', () => {
expect(isCsrfOriginAllowed('asdf.vercel.com', ['*.vercel.app'])).toBe(false)
expect(isCsrfOriginAllowed('asdf.jkl.vercel.com', ['*.vercel.com'])).toBe(
false
)
expect(isCsrfOriginAllowed('asdf.jkl.vercel.app', ['**.vercel.com'])).toBe(
false
)
})
it('should return false when allowedOrigins does not contain originDomain', () => {
expect(isCsrfOriginAllowed('vercel.com', ['nextjs.org'])).toBe(false)
})
it('should return false when allowedOrigins is undefined', () => {
expect(isCsrfOriginAllowed('vercel.com', undefined)).toBe(false)
})
it('should return false when allowedOrigins is empty', () => {
expect(isCsrfOriginAllowed('vercel.com', [])).toBe(false)
})
it('should return false when allowedOrigins is empty string', () => {
expect(isCsrfOriginAllowed('vercel.com', [''])).toBe(false)
})
it('wildcards are only supported below the domain level', () => {
expect(isCsrfOriginAllowed('vercel.com', ['*'])).toBe(false)
expect(isCsrfOriginAllowed('vercel.com', ['**'])).toBe(false)
})
})
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