From 04d77ab37661d3f2a5c002226dd279941e0938be Mon Sep 17 00:00:00 2001
From: Jack Robison <jackrobison@lbry.io>
Date: Sun, 6 Aug 2017 19:31:37 -0400
Subject: [PATCH] add getclaimbyid

---
 src/rpc/claimtrie.cpp | 48 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 48 insertions(+)

diff --git a/src/rpc/claimtrie.cpp b/src/rpc/claimtrie.cpp
index 26b71547a..c15020087 100644
--- a/src/rpc/claimtrie.cpp
+++ b/src/rpc/claimtrie.cpp
@@ -349,6 +349,53 @@ UniValue getclaimsforname(const UniValue& params, bool fHelp)
     return ret;
 }
 
+UniValue getclaimbyid(const UniValue& params, bool fHelp)
+{
+    if (fHelp || params.size() != 1)
+        throw std::runtime_error(
+                "getclaimbyid\n"
+                        "Get a claim by claim id\n"
+                        "Arguments: \n"
+                        "1.  \"claimId\"      (string) the claimId of this claim\n"
+                        "Result:\n"
+                        "{\n"
+                        "  \"name\"           (string) the name of the claim\n"
+                        "  \"claimId\"        (string) the claimId of this claim\n"
+                        "  \"txid\"           (string) the hash of the transaction which has successfully claimed this name\n"
+                        "  \"n\"              (numeric) vout value\n"
+                        "  \"amount\"         (numeric) txout value\n"
+                        "  \"height\"         (numeric) the height of the block in which this claim transaction is located\n"
+                        "  \"value\"          (string) claim metadata\n"
+                        "}\n"
+        );
+
+    LOCK(cs_main);
+    uint160 claimId;
+    claimId.SetHex(params[0].get_str());
+
+    std::vector<namedNodeType> nodes = pclaimTrie->flattenTrie();
+    for (std::vector<namedNodeType>::iterator it = nodes.begin(); it != nodes.end(); ++it) {
+        if (!it->second.claims.empty()) {
+            for (std::vector<CClaimValue>::iterator itClaims = it->second.claims.begin();
+                 itClaims != it->second.claims.end(); ++itClaims) {
+                if (claimId == itClaims->claimId) {
+                    UniValue claim(UniValue::VOBJ);
+                    std::string sValue;
+                    getValueForClaim(itClaims->outPoint, sValue);
+                    claim.push_back(Pair("name", it->first));
+                    claim.push_back(Pair("claimId", itClaims->claimId.GetHex()));
+                    claim.push_back(Pair("txid", itClaims->outPoint.hash.GetHex()));
+                    claim.push_back(Pair("n", (int) itClaims->outPoint.n));
+                    claim.push_back(Pair("amount", ValueFromAmount(itClaims->nAmount)));
+                    claim.push_back(Pair("height", itClaims->nHeight));
+                    claim.push_back(Pair("value", sValue));
+                    return claim;
+                }
+            }
+        }
+    }
+    return -1;
+}
 
 UniValue gettotalclaimednames(const UniValue& params, bool fHelp)
 {
@@ -710,6 +757,7 @@ static const CRPCCommand commands[] =
     { "Claimtrie",             "gettotalvalueofclaims",   &gettotalvalueofclaims,   true  },
     { "Claimtrie",             "getclaimsfortx",          &getclaimsfortx,          true  },
     { "Claimtrie",             "getnameproof",            &getnameproof,            true  },
+    { "Claimtrie",             "getclaimbyid",            &getclaimbyid,            true  },
 };
 
 void RegisterClaimTrieRPCCommands(CRPCTable &tableRPC)