Merge pull request #6058

03c5687 appropriate response when trying to get a block in pruned mode (Jonas Schnelli)
1b2e555 add autoprune information to RPC "getblockchaininfo" (Jonas Schnelli)

Author: laanwj

src/rest.cpp

@@ -197,6 +197,9 @@ static bool rest_block(AcceptedConnection* conn,
             throw RESTERR(HTTP_NOT_FOUND, hashStr + " not found");
 
         pblockindex = mapBlockIndex[hash];
+        if (fHavePruned && !(pblockindex->nStatus & BLOCK_HAVE_DATA) && pblockindex->nTx > 0)
+            throw RESTERR(HTTP_NOT_FOUND, hashStr + " not available (pruned data)");
+
         if (!ReadBlockFromDisk(block, pblockindex))
             throw RESTERR(HTTP_NOT_FOUND, hashStr + " not found");
     }

src/rpcblockchain.cpp

@@ -299,6 +299,9 @@ Value getblock(const Array& params, bool fHelp)
     CBlock block;
     CBlockIndex* pblockindex = mapBlockIndex[hash];
 
+    if (fHavePruned && !(pblockindex->nStatus & BLOCK_HAVE_DATA) && pblockindex->nTx > 0)
+        throw JSONRPCError(RPC_INTERNAL_ERROR, "Block not available (pruned data)");
+
     if(!ReadBlockFromDisk(block, pblockindex))
         throw JSONRPCError(RPC_INTERNAL_ERROR, "Can't read block from disk");
 
@@ -492,6 +495,15 @@ Value getblockchaininfo(const Array& params, bool fHelp)
     obj.push_back(Pair("difficulty",            (double)GetDifficulty()));
     obj.push_back(Pair("verificationprogress",  Checkpoints::GuessVerificationProgress(Params().Checkpoints(), chainActive.Tip())));
     obj.push_back(Pair("chainwork",             chainActive.Tip()->nChainWork.GetHex()));
+    obj.push_back(Pair("pruned",                fPruneMode));
+    if (fPruneMode)
+    {
+        CBlockIndex *block = chainActive.Tip();
+        while (block && block->pprev && (block->pprev->nStatus & BLOCK_HAVE_DATA))
+            block = block->pprev;
+
+        obj.push_back(Pair("pruneheight",        block->nHeight));
+    }
     return obj;
 }