rpc: output all hash preimages in 'decodepsbt'

2 files changed, 58 insertions, 2 deletions

diff --git a/src/rpc/rawtransaction.cpp b/src/rpc/rawtransaction.cpp
index 12ade466da..f2e8104e14 100644
--- a/src/rpc/rawtransaction.cpp
+++ b/src/rpc/rawtransaction.cpp
@@ -1154,7 +1154,23 @@ static RPCHelpMan decodepsbt()
                                 {
                                     {RPCResult::Type::STR_HEX, "", "hex-encoded witness data (if any)"},
                                 }},
-                                {RPCResult::Type::OBJ_DYN, "unknown", /*optional=*/true, "The unknown global fields",
+                                {RPCResult::Type::OBJ_DYN, "ripemd160_preimages", /*optional=*/ true, "",
+                                {
+                                    {RPCResult::Type::STR, "hash", "The hash and preimage that corresponds to it."},
+                                }},
+                                {RPCResult::Type::OBJ_DYN, "sha256_preimages", /*optional=*/ true, "",
+                                {
+                                    {RPCResult::Type::STR, "hash", "The hash and preimage that corresponds to it."},
+                                }},
+                                {RPCResult::Type::OBJ_DYN, "hash160_preimages", /*optional=*/ true, "",
+                                {
+                                    {RPCResult::Type::STR, "hash", "The hash and preimage that corresponds to it."},
+                                }},
+                                {RPCResult::Type::OBJ_DYN, "hash256_preimages", /*optional=*/ true, "",
+                                {
+                                    {RPCResult::Type::STR, "hash", "The hash and preimage that corresponds to it."},
+                                }},
+                                {RPCResult::Type::OBJ_DYN, "unknown", /*optional=*/ true, "The unknown input fields",
                                 {
                                     {RPCResult::Type::STR_HEX, "key", "(key-value pair) An unknown key-value pair"},
                                 }},
@@ -1373,6 +1389,42 @@ static RPCHelpMan decodepsbt()
             in.pushKV("final_scriptwitness", txinwitness);
         }
 
+        // Ripemd160 hash preimages
+        if (!input.ripemd160_preimages.empty()) {
+            UniValue ripemd160_preimages(UniValue::VOBJ);
+            for (const auto& [hash, preimage] : input.ripemd160_preimages) {
+                ripemd160_preimages.pushKV(HexStr(hash), HexStr(preimage));
+            }
+            in.pushKV("ripemd160_preimages", ripemd160_preimages);
+        }
+
+        // Sha256 hash preimages
+        if (!input.sha256_preimages.empty()) {
+            UniValue sha256_preimages(UniValue::VOBJ);
+            for (const auto& [hash, preimage] : input.sha256_preimages) {
+                sha256_preimages.pushKV(HexStr(hash), HexStr(preimage));
+            }
+            in.pushKV("sha256_preimages", sha256_preimages);
+        }
+
+        // Hash160 hash preimages
+        if (!input.hash160_preimages.empty()) {
+            UniValue hash160_preimages(UniValue::VOBJ);
+            for (const auto& [hash, preimage] : input.hash160_preimages) {
+                hash160_preimages.pushKV(HexStr(hash), HexStr(preimage));
+            }
+            in.pushKV("hash160_preimages", hash160_preimages);
+        }
+
+        // Hash256 hash preimages
+        if (!input.hash256_preimages.empty()) {
+            UniValue hash256_preimages(UniValue::VOBJ);
+            for (const auto& [hash, preimage] : input.hash256_preimages) {
+                hash256_preimages.pushKV(HexStr(hash), HexStr(preimage));
+            }
+            in.pushKV("hash256_preimages", hash256_preimages);
+        }
+
         // Proprietary
         if (!input.m_proprietary.empty()) {
             UniValue proprietary(UniValue::VARR);
diff --git a/test/functional/data/rpc_psbt.json b/test/functional/data/rpc_psbt.json
index dd24dce94d..8672400a92 100644
--- a/test/functional/data/rpc_psbt.json
+++ b/test/functional/data/rpc_psbt.json
@@ -39,7 +39,11 @@
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-        "cHNidP8BAJoCAAAAAljoeiG1ba8MI76OcHBFbDNvfLqlyHV5JPVFiHuyq911AAAAAAD/////g40EJ9DsZQpoqka7CwmK6kQiwHGyyng1Kgd5WdB86h0BAAAAAP////8CcKrwCAAAAAAWABTYXCtx0AYLCcmIauuBXlCZHdoSTQDh9QUAAAAAFgAUAK6pouXw+HaliN9VRuh0LR2HAI8AAAAATwEENYfPAAAAAAAAAAAAG3t93NmzqdwlifBjtWBRnFrHYkoMdmriSG1s74PiZ8ID3+4wNJ18fPeMDsRRe9iTAopsKogDQfxLmL6Kgj07xScE2QxqTwAAAAAA"
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     ],
     "creator" : [
         {