As hex link added to tx details

https://github.com/moneroexamples/onion-monero-blockchain-explorer/issues/133

main.cpp

@@ -309,6 +309,11 @@ main(int ac, const char* av[])
         return crow::response(xmrblocks.show_tx(remove_bad_chars(tx_hash)));
     });
 
+    CROW_ROUTE(app, "/txhex/<string>")
+    ([&](const crow::request& req, string tx_hash) {
+        return crow::response(xmrblocks.show_tx_hex(remove_bad_chars(tx_hash)));
+    });
+
     CROW_ROUTE(app, "/tx/<string>/<uint>")
     ([&](string tx_hash, uint16_t with_ring_signatures)
      {

src/page.h

@@ -1595,6 +1595,48 @@ public:
         return mstch::render(template_file["tx"], context, partials);
     }
 
+    string
+    show_tx_hex(string tx_hash_str)
+    {
+        crypto::hash tx_hash;
+
+        if (!epee::string_tools::hex_to_pod(tx_hash_str, tx_hash))
+        {
+            string msg = fmt::format("Cant parse {:s} as tx hash!", tx_hash_str);
+            cerr << msg << endl;
+            return msg;
+        }
+
+        // get transaction
+        transaction tx;
+
+        if (!mcore->get_tx(tx_hash, tx))
+        {
+            cerr << "Cant get tx in blockchain: " << tx_hash
+                 << ". \n Check mempool now" << endl;
+
+            vector<MempoolStatus::mempool_tx> found_txs;
+
+            search_mempool(tx_hash, found_txs);
+
+            if (found_txs.empty())
+            {
+                // tx is nowhere to be found :-(
+                return string("Cant get tx: " + tx_hash_str);
+            }
+        }
+
+        try
+        {
+            return tx_to_hex(tx);
+        }
+        catch (std::exception const& e)
+        {
+            cerr << e.what() << endl;
+            return string {"Failed to obtain hex of tx due to: "} + e.what();
+        }
+    }
+
     string
     show_my_outputs(string tx_hash_str,
                     string xmr_address_str,

src/templates/partials/tx_details.html

@@ -531,7 +531,10 @@
 {{^have_raw_tx}}
     {{^with_ring_signatures}}
         {{#show_more_details_link}}
-            <h5 style="margin-top:1px"><a href="/tx/{{tx_hash}}/1">More details</a></h5>
+            <h5 style="margin-top:1px">
+                <a href="/tx/{{tx_hash}}/1">More details</a>
+                | <a href="/txhex/{{tx_hash}}">As hex</a>
+            </h5>
         {{/show_more_details_link}}
     {{/with_ring_signatures}}
     {{#with_ring_signatures}}

src/tools.cpp

@@ -1266,4 +1266,10 @@ pause_execution(uint64_t no_seconds, const string& text)
     cout << endl;
 }
 
+string
+tx_to_hex(transaction const& tx)
+{
+    return epee::string_tools::buff_to_hex_nodelimer(t_serializable_object_to_blob(tx));
+}
+
 }

src/tools.h

@@ -370,7 +370,8 @@ calc_median(It it_begin, It it_end)
 void
 pause_execution(uint64_t no_seconds, const string& text = "now");
 
-
+string
+tx_to_hex(transaction const& tx);
 }
 
 #endif //XMREG01_TOOLS_H