From e20d4e113b78232751a63faf4e59a2665f215d7c Mon Sep 17 00:00:00 2001
From: moneroexamples <moneroexamples@tuta.io>
Date: Sat, 20 Aug 2016 18:08:11 +0800
Subject: [PATCH] does_header_has added to block tor scanner

---
 main.cpp   | 29 +++++++++++++++++++----------
 src/page.h | 24 ++++++++++++++++++++++++
 2 files changed, 43 insertions(+), 10 deletions(-)

diff --git a/main.cpp b/main.cpp
index dd78022..90dce8b 100644
--- a/main.cpp
+++ b/main.cpp
@@ -120,22 +120,31 @@ int main(int ac, const char* av[]) {
     });
 
     CROW_ROUTE(app, "/block/<string>")
-    ([&](string block_hash) {
-        return xmrblocks.show_block(block_hash);
-    });
+    ([&](const crow::request& req, string block_hash) {
+
+        // there is some robot scanning everything
+        // on the explorer. I block it with this
+        if (!xmreg::does_header_has(req, "Accept", "q=.2, */*; q=.2").empty())
+        {
+            return crow::response(400);;
+        }
+
 
-//    CROW_ROUTE(app, "/tx/<string>")
-//    ([&](string tx_hash) {
-//        return xmrblocks.show_tx(tx_hash);
-//    });
+
+        return crow::response(xmrblocks.show_block(block_hash));
+    });
 
     CROW_ROUTE(app, "/tx/<string>")
     ([&](const crow::request& req, string tx_hash) {
 
-        for (const auto& m : req.headers)
-            cout << m.first << ": " << m.second << endl;
+        // there is some robot scanning everything
+        // on the explorer. I block it with this
+        if (!xmreg::does_header_has(req, "Accept", "q=.2, */*; q=.2").empty())
+        {
+            return crow::response(400);
+        }
 
-        return "";
+        return crow::response(xmrblocks.show_tx(tx_hash));
     });
 
     CROW_ROUTE(app, "/tx/<string>/<uint>")
diff --git a/src/page.h b/src/page.h
index 0a3b75e..0469c79 100644
--- a/src/page.h
+++ b/src/page.h
@@ -19,6 +19,7 @@
 #include "tools.h"
 #include "rpccalls.h"
 #include "mylmdb.h"
+#include "../ext/crow/http_request.h"
 
 #include <algorithm>
 #include <limits>
@@ -58,6 +59,29 @@ namespace xmreg {
     DEFINE_MEMBER_GETTER(tx_blob, string)
 
 
+
+    string
+    does_header_has(const crow::request& req,
+                    const string& field = "Accept",
+                    const string& value = "q=.2, */*; q=.2")
+    {
+        string accept = req.get_header_value(field);
+
+        if (!accept.empty())
+        {
+            if (accept.find(value) != std::string::npos)
+            {
+                cout << value << " found" << endl;
+
+                return accept;
+            }
+        }
+
+        return string {};
+    }
+
+
+
     /**
      * @brief The tx_details struct
      *