descriptor: InferScript, do not return top-level only func as sub des…

…criptor e.g. sh(addr(ADDR)) or sh(raw(HEX)) are invalid descriptors. Making sh and wsh top level functions to return addr/raw descriptors when the subscript inference fails. Github-Pull: bitcoin#28067 Rebased-From: cc781a2
fanquake · Jul 21, 2023 · 6d5a510 · 6d5a510
1 parent 37d9cc6
commit 6d5a510
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Showing 3 changed files with 6 additions and 2 deletions.
diff --git a/src/script/descriptor.cpp b/src/script/descriptor.cpp
@@ -1678,6 +1678,10 @@ std::unique_ptr<DescriptorImpl> InferScript(const CScript& script, ParseScriptCo
         }
     }
 
+    // The following descriptors are all top-level only descriptors.
+    // So if we are not at the top level, return early.
+    if (ctx != ParseScriptContext::TOP) return nullptr;
+
     CTxDestination dest;
     if (ExtractDestination(script, dest)) {
         if (GetScriptForDestination(dest) == script) {

diff --git a/test/functional/data/rpc_decodescript.json b/test/functional/data/rpc_decodescript.json
@@ -69,7 +69,7 @@
             "p2sh": "2N34iiGoUUkVSPiaaTFpJjB1FR9TXQu3PGM",
             "segwit": {
                 "asm": "0 96c2368fc30514a438a8bd909f93c49a1549d77198ccbdb792043b666cb24f42",
-                "desc": "wsh(raw(02eeee))#gtay4y0z",
+                "desc": "addr(bcrt1qjmprdr7rq522gw9ghkgfly7yng25n4m3nrxtmdujqsakvm9jfapqk795l5)#5akkdska",
                 "hex": "002096c2368fc30514a438a8bd909f93c49a1549d77198ccbdb792043b666cb24f42",
                 "address": "bcrt1qjmprdr7rq522gw9ghkgfly7yng25n4m3nrxtmdujqsakvm9jfapqk795l5",
                 "type": "witness_v0_scripthash",

diff --git a/test/functional/rpc_decodescript.py b/test/functional/rpc_decodescript.py
@@ -271,7 +271,7 @@ def decodescript_miniscript(self):
         assert res["segwit"]["desc"] == "wsh(and_v(and_v(v:hash160(ffffffffffffffffffffffffffffffffffffffff),v:pk(0250929b74c1a04954b78b4b6035e97a5e078a5a0f28ec96d547bfee9ace803ac0)),older(1)))#gm8xz4fl"
         # Miniscript-incompatible offered HTLC
         res = self.nodes[0].decodescript("82012088a914ffffffffffffffffffffffffffffffffffffffff882102ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffacb2")
-        assert res["segwit"]["desc"] == "wsh(raw(82012088a914ffffffffffffffffffffffffffffffffffffffff882102ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffacb2))#ra6w2xa7"
+        assert res["segwit"]["desc"] == "addr(bcrt1q73qyfypp47hvgnkjqnav0j3k2lq3v76wg22dk8tmwuz5sfgv66xsvxg6uu)#9p3q328s"
         # Miniscript-compatible multisig bigger than 520 byte P2SH limit.
         res = self.nodes[0].decodescript("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")
         assert_equal(res["segwit"]["desc"], "wsh(or_d(multi(11,020e0338c96a8870479f2396c373cc7696ba124e8635d41b0ea581112b67817261,02675333a4e4b8fb51d9d4e22fa5a8eaced3fdac8a8cbf9be8c030f75712e6af99,02896807d54bc55c24981f24a453c60ad3e8993d693732288068a23df3d9f50d48,029e51a5ef5db3137051de8323b001749932f2ff0d34c82e96a2c2461de96ae56c,02a4e1a9638d46923272c266631d94d36bdb03a64ee0e14c7518e49d2f29bc4010,031c41fdbcebe17bec8d49816e00ca1b5ac34766b91c9f2ac37d39c63e5e008afb,03079e252e85abffd3c401a69b087e590a9b86f33f574f08129ccbd3521ecf516b,03111cf405b627e22135b3b3733a4a34aa5723fb0f58379a16d32861bf576b0ec2,0318f331b3e5d38156da6633b31929c5b220349859cc9ca3d33fb4e68aa0840174,03230dae6b4ac93480aeab26d000841298e3b8f6157028e47b0897c1e025165de1,035abff4281ff00660f99ab27bb53e6b33689c2cd8dcd364bc3c90ca5aea0d71a6,03bd45cddfacf2083b14310ae4a84e25de61e451637346325222747b157446614c,03cc297026b06c71cbfa52089149157b5ff23de027ac5ab781800a578192d17546,03d3bde5d63bdb3a6379b461be64dad45eabff42f758543a9645afd42f6d424828,03ed1e8d5109c9ed66f7941bc53cc71137baa76d50d274bda8d5e8ffbd6e61fe9a),and_v(v:older(4032),multi(2,03aab896d53a8e7d6433137bbba940f9c521e085dd07e60994579b64a6d992cf79,0291b7d0b1b692f8f524516ed950872e5da10fb1b808b5a526dedc6fed1cf29807,0386aa9372fbab374593466bc5451dc59954e90787f08060964d95c87ef34ca5bb))))#7jwwklk4")