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Fix NonceUtil.isValidNonce to reject all whitespace, not just spaces #1399

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Fix NonceUtil.isValidNonce to reject all whitespace, not just spaces #1399

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2 changes: 1 addition & 1 deletion facebook-common/src/main/java/com/facebook/login/NonceUtil.kt
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Original file line number Diff line number Diff line change
Expand Up @@ -15,7 +15,7 @@ object NonceUtil {
return false
}

val hasWhiteSpace = nonce.indexOf(' ') >= 0
val hasWhiteSpace = nonce.any { it.isWhitespace() }
return !hasWhiteSpace
}
}
7 changes: 7 additions & 0 deletions facebook-common/src/test/kotlin/com/facebook/login/NonceUtilTest.kt
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Original file line number Diff line number Diff line change
Expand Up @@ -24,6 +24,13 @@ class NonceUtilTest : FacebookPowerMockTestCase() {
assertThat(NonceUtil.isValidNonce("nonce ")).isFalse
}

@Test
fun `test nonce with non-space whitespace is invalid`() {
assertThat(NonceUtil.isValidNonce("nonce\t")).isFalse
assertThat(NonceUtil.isValidNonce("nonce\n")).isFalse
assertThat(NonceUtil.isValidNonce("non\rce")).isFalse
}

@Test
fun `test empty nonce`() {
assertThat(NonceUtil.isValidNonce("")).isFalse
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