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Change the recursion limit to match grpc's default #3091

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merged 1 commit into from
Sep 6, 2024
Merged

Change the recursion limit to match grpc's default #3091

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2 changes: 1 addition & 1 deletion wire-runtime/src/commonMain/kotlin/com/squareup/wire/ProtoReader.kt
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Original file line number Diff line number Diff line change
Expand Up @@ -522,7 +522,7 @@ open class ProtoReader(private val source: BufferedSource) {

companion object {
/** The standard number of levels of message nesting to allow. */
internal const val RECURSION_LIMIT = 65
internal const val RECURSION_LIMIT = 100

internal const val FIELD_ENCODING_MASK = 0x7
internal const val TAG_FIELD_ENCODING_BITS = 3
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24 changes: 14 additions & 10 deletions wire-tests/src/commonTest/kotlin/com/squareup/wire/ParseTest.kt
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Original file line number Diff line number Diff line change
Expand Up @@ -75,27 +75,31 @@ class ParseTest {

@Test
fun upToRecursionLimit() {
// tag 2: nested message (64 times)
// tag 2: nested message (99 times)
// tag 1: signed varint32 456
val data = (
"127e127c127a12781276127412721270126e126c126a12681266126" +
"412621260125e125c125a12581256125412521250124e124c124a12481246124412421240123e123c123a123" +
"81236123412321230122e122c122a12281226122412221220121e121c121a12181216121412121210120e120" +
"c120a1208120612041202120008c803"
"12e60112e30112e00112dd0112da0112d70112d40112d10112ce0112cb0112c80112c50112c20112bf0112bc" +
"0112b90112b60112b30112b00112ad0112aa0112a70112a40112a101129e01129b01129801129501129201" +
"128f01128c01128901128601128301128001127e127c127a12781276127412721270126e126c126a126812" +
"66126412621260125e125c125a12581256125412521250124e124c124a12481246124412421240123e123c" +
"123a12381236123412321230122e122c122a12281226122412221220121e121c121a121812161214121212" +
"10120e120c120a1208120612041202120008c803"
).decodeHex()
val recursive = Recursive.ADAPTER.decode(data.toByteArray())
assertEquals(456, recursive.value_!!.toInt())
}

@Test
fun overRecursionLimitThrowsIOException() {
// tag 2: nested message (65 times)
// tag 2: nested message (100 times)
// tag 1: signed varint32 456
val data = (
"128001127e127c127a12781276127412721270126e126c126a12681" +
"266126412621260125e125c125a12581256125412521250124e124c124a12481246124412421240123e123c1" +
"23a12381236123412321230122e122c122a12281226122412221220121e121c121a121812161214121212101" +
"20e120c120a1208120612041202120008c803"
"12e90112e60112e30112e00112dd0112da0112d70112d40112d10112ce0112cb0112c80112c50112c20112bf" +
"0112bc0112b90112b60112b30112b00112ad0112aa0112a70112a40112a101129e01129b01129801129501" +
"129201128f01128c01128901128601128301128001127e127c127a12781276127412721270126e126c126a" +
"12681266126412621260125e125c125a12581256125412521250124e124c124a1248124612441242124012" +
"3e123c123a12381236123412321230122e122c122a12281226122412221220121e121c121a121812161214" +
"12121210120e120c120a1208120612041202120008c803"
).decodeHex()
try {
Recursive.ADAPTER.decode(data.toByteArray())
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24 changes: 14 additions & 10 deletions wire-tests/src/jvmJavaTest/java/com/squareup/wire/ParseTest.java
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Original file line number Diff line number Diff line change
Expand Up @@ -100,28 +100,32 @@ public void lastValueWinsForRepeatedValueOfNonrepeatedField() throws Exception {

@Test
public void upToRecursionLimit() throws Exception {
// tag 2: nested message (64 times)
// tag 2: nested message (99 times)
// tag 1: signed varint32 456
ByteString data =
ByteString.decodeHex(
"127e127c127a12781276127412721270126e126c126a12681266126"
+ "412621260125e125c125a12581256125412521250124e124c124a12481246124412421240123e123c123a123"
+ "81236123412321230122e122c122a12281226122412221220121e121c121a12181216121412121210120e120"
+ "c120a1208120612041202120008c803");
"12e60112e30112e00112dd0112da0112d70112d40112d10112ce0112cb0112c80112c50112c20112bf0112bc"
+ "0112b90112b60112b30112b00112ad0112aa0112a70112a40112a101129e01129b01129801129501129201"
+ "128f01128c01128901128601128301128001127e127c127a12781276127412721270126e126c126a126812"
+ "66126412621260125e125c125a12581256125412521250124e124c124a12481246124412421240123e123c"
+ "123a12381236123412321230122e122c122a12281226122412221220121e121c121a121812161214121212"
+ "10120e120c120a1208120612041202120008c803");
Recursive recursive = Recursive.ADAPTER.decode(data.toByteArray());
assertThat(recursive.value.intValue()).isEqualTo(456);
}

@Test
public void overRecursionLimitThrowsIOException() throws Exception {
// tag 2: nested message (65 times)
// tag 2: nested message (100 times)
// tag 1: signed varint32 456
ByteString data =
ByteString.decodeHex(
"128001127e127c127a12781276127412721270126e126c126a12681"
+ "266126412621260125e125c125a12581256125412521250124e124c124a12481246124412421240123e123c1"
+ "23a12381236123412321230122e122c122a12281226122412221220121e121c121a121812161214121212101"
+ "20e120c120a1208120612041202120008c803");
"12e90112e60112e30112e00112dd0112da0112d70112d40112d10112ce0112cb0112c80112c50112c20112bf"
+ "0112bc0112b90112b60112b30112b00112ad0112aa0112a70112a40112a101129e01129b01129801129501"
+ "129201128f01128c01128901128601128301128001127e127c127a12781276127412721270126e126c126a"
+ "12681266126412621260125e125c125a12581256125412521250124e124c124a1248124612441242124012"
+ "3e123c123a12381236123412321230122e122c122a12281226122412221220121e121c121a121812161214"
+ "12121210120e120c120a1208120612041202120008c803");
try {
Recursive.ADAPTER.decode(data.toByteArray());
fail();
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