search support for block heights, block hashes, and txids

app/rpcApi.js

@@ -108,6 +108,22 @@ function getBlocksByHeight(blockHeights) {
 	});
 }
 
+function getBlockByHash(blockHash) {
+	console.log("getBlockByHash: " + blockHash);
+
+	return new Promise(function(resolve, reject) {
+		var client = global.client;
+		
+		client.cmd('getblock', blockHash, function(err, result, resHeaders) {
+			if (err) {
+				console.log("Error 0u2fgewue: " + err);
+			}
+
+			resolve(result);
+		});
+	});
+}
+
 function getTransactionInputs(rpcClient, transaction) {
 	console.log("getTransactionInputs: " + transaction.txid);
 
@@ -246,6 +262,7 @@ module.exports = {
 	getInfo: getInfo,
 	getBlockByHeight: getBlockByHeight,
 	getBlocksByHeight: getBlocksByHeight,
+	getBlockByHash: getBlockByHash,
 	getTransactionInputs: getTransactionInputs,
 	getBlockData: getBlockData,
 	getRawTransaction: getRawTransaction,

routes/baseActionsRouter.js

@@ -125,6 +125,54 @@ router.get("/blocks", function(req, res) {
 	});
 });
 
+router.post("/search", function(req, res) {
+	if (!req.body.query) {
+		req.session.userMessage = "Enter a block height, block hash, or transaction id.";
+
+		res.redirect("/");
+
+		return;
+	}
+
+	var query = req.body.query;
+
+	rpcApi.getRawTransaction(query).then(function(tx) {
+		if (tx) {
+			res.redirect("/tx/" + query);
+
+			return;
+		}
+
+		rpcApi.getBlockByHash(query).then(function(blockByHash) {
+			if (blockByHash) {
+				res.redirect("/block/" + query);
+
+				return;
+			}
+
+			if (isNaN(query)) {
+				req.session.userMessage = "No results found for query: " + query;
+
+				res.redirect("/");
+
+				return;
+			}
+
+			rpcApi.getBlockByHeight(parseInt(query)).then(function(blockByHeight) {
+				if (blockByHeight) {
+					res.redirect("/block-height/" + query);
+
+					return;
+				}
+
+				req.session.userMessage = "No results found for query: " + query;
+
+				res.redirect("/");
+			});
+		});
+	});
+});
+
 router.get("/block-height/:blockHeight", function(req, res) {
 	var client = global.client;
 

views/layout.pug

@@ -30,9 +30,12 @@ html
 							span BTC RPC Explorer
 				div(class="collapse navbar-collapse", id="navbarNav")
 					if (client)
-						ul(class="navbar-nav")
+						ul(class="navbar-nav mr-auto")
 							li(class="nav-item")
 								a(href="/terminal", class="nav-link") RPC Terminal
+						form(method="post", action="/search", class="form-inline")
+							input(class="form-control form-control-sm mr-sm-2", type="text", name="query", placeholder="block height, block hash, txid", style="width: 300px;")
+							button(class="btn btn-primary btn-sm", type="submit") Search
 			
 		div(class="container")
 			if (userMessage)