Orphan block fix + other misc improvements

-The block sync will now remove orphaned block data from the txes collecton,  address balances/sent/received data as well as addresstx data and now stores limited info in a new orphans collection
-Added a new optional page for viewing orphaned block data
-The coinbase address now updates sent totals from POS rewards and other transactions that have vout but no vin addresses
-Block and transaction pages now display a warning when viewing an orphaned block or tx
-Added a couple new fields to the coinstats collection for tracking orphaned blocks
-Added new locale strings for the orphaned block feature

README.md

@@ -130,6 +130,7 @@ Table of Contents
       - **getmasternoderewards:** Returns a list of masternode reward transactions for a specific address that arrived after a specific block height *\*only applicable to masternode coins*
       - **getmasternoderewardstotal:** Returns the total number of coins earned in masternode rewards for a specific address that arrived after a specific block height *\*only applicable to masternode coins*
   - **Claim Address:** Allows anyone to set custom display names for wallet addresses that they own using the **Sign Message** feature from their local wallet. Includes *bad word* filter support.
+  - **Orphaned Blocks:** Displays a list of orphaned blocks with links to the next and previous "good" blocks
   - **Block Info:** Displays block summary and list of transactions for a specific block height
   - **Transaction Info:** Displays transaction summary, optional OP_RETURN value, list of input addresses and output addresses for a specific transaction
   - **Address Info:** Displays wallet address summary (balance, total sent, total received, QR code) and a list of latest transactions for a specific wallet address

app.js

@@ -592,6 +592,39 @@ app.use('/ext/getmasternoderewardstotal/:hash/:since', function(req, res) {
     res.end('This method is disabled');
 });
 
+// get the list of orphans from local collection
+app.use('/ext/getorphanlist/:start/:length', function(req, res) {
+  // check the headers to see if it matches an internal ajax request from the explorer itself (TODO: come up with a more secure method of whitelisting ajax calls from the explorer)
+  if (req.headers['x-requested-with'] != null && req.headers['x-requested-with'].toLowerCase() == 'xmlhttprequest' && req.headers.referer != null && req.headers.accept.indexOf('text/javascript') > -1 && req.headers.accept.indexOf('application/json') > -1) {
+    // fix parameters
+    if (typeof req.params.start === 'undefined' || isNaN(req.params.start) || req.params.start < 0)
+      req.params.start = 0;
+    if (typeof req.params.length === 'undefined' || isNaN(req.params.length))
+      req.params.length = 10;
+
+    // get the orphan list from local collection
+    db.get_orphans(req.params.start, req.params.length, function(orphans, count) {
+      var data = [];
+
+      for (i = 0; i < orphans.length; i++) {
+        var row = [];
+
+        row.push(orphans[i].blockindex);
+        row.push(orphans[i].orphan_blockhash);
+        row.push(orphans[i].good_blockhash);
+        row.push(orphans[i].prev_blockhash);
+        row.push(orphans[i].next_blockhash);
+
+        data.push(row);
+      }
+
+      // display data formatted for internal datatable
+      res.json({"data": data, "recordsTotal": count, "recordsFiltered": count});
+    });
+  } else
+    res.end('This method is disabled');
+});
+
 app.use('/ext/getnetworkchartdata', function(req, res) {
   db.get_network_chart_data(function(data) {
     if (data)
@@ -766,6 +799,7 @@ app.set('richlist_page', settings.richlist_page);
 app.set('markets_page', settings.markets_page);
 app.set('api_page', settings.api_page);
 app.set('claim_address_page', settings.claim_address_page);
+app.set('orphans_page', settings.orphans_page);
 app.set('labels', settings.labels);
 app.set('api_cmds', settings.api_cmds);
 app.set('blockchain_specific', settings.blockchain_specific);

lib/database.js

@@ -5,6 +5,7 @@ var mongoose = require('mongoose'),
     Address = require('../models/address'),
     AddressTx = require('../models/addresstx'),
     Tx = require('../models/tx'),
+    Orphans = require('../models/orphans'),
     Richlist = require('../models/richlist'),
     Peers = require('../models/peers'),
     Heavy = require('../models/heavy'),
@@ -403,7 +404,13 @@ module.exports = {
         // collection has data
         // determine if last_usd_price field exists
         check_add_db_field(Stats, 'last_usd_price', 0, function(exists) {
-          return cb(true);
+          // determine if orphan_index field exists
+          check_add_db_field(Stats, 'orphan_index', 0, function(exists) {
+            // determine if orphan_current field exists
+            check_add_db_field(Stats, 'orphan_current', 0, function(exists) {
+              return cb(true);
+            });
+          });
         });
       } else
         return cb(false);
@@ -424,7 +431,9 @@ module.exports = {
     if (!skip) {
       var newStats = new Stats({
         coin: coin,
-        last: 0
+        last: 0,
+        orphan_index: 0,
+        orphan_current: 0
       });
 
       newStats.save(function(err) {
@@ -1068,7 +1077,9 @@ module.exports = {
                   supply: (supply ? supply : 0),
                   connections: (connections ? connections : 0),
                   last: (stats.last ? stats.last : 0),
-                  txes: (stats.txes ? stats.txes : 0)
+                  txes: (stats.txes ? stats.txes : 0),
+                  orphan_index: (stats.orphan_index ? stats.orphan_index : 0),
+                  orphan_current: (stats.orphan_current ? stats.orphan_current : 0)
                 });
               });
             } else {
@@ -1511,7 +1522,7 @@ module.exports = {
       if (tx && tx != 'There was an error. Check your console.') {
         lib.prepare_vin(tx, function(vin, tx_type_vin) {
           lib.prepare_vout(tx.vout, txid, vin, ((!settings.blockchain_specific.zksnarks.enabled || typeof tx.vjoinsplit === 'undefined' || tx.vjoinsplit == null) ? [] : tx.vjoinsplit), function(vout, nvin, tx_type_vout) {
-            lib.syncLoop(vin.length, function (loop) {
+            lib.syncLoop(nvin.length, function (loop) {
               var i = loop.iteration();
 
               // check if address is inside an array
@@ -1556,7 +1567,7 @@ module.exports = {
 
                   var newTx = new Tx({
                     txid: tx.txid,
-                    vin: nvin,
+                    vin: (vin == null || vin.length == 0 ? [] : nvin),
                     vout: vout,
                     total: total.toFixed(8),
                     timestamp: tx.time,
@@ -1582,5 +1593,19 @@ module.exports = {
     });
   },
 
+  // get the list of orphans from local collection
+  get_orphans: function(start, length, cb) {
+    // get the count of orphaned blocks
+    Orphans.find({}).countDocuments(function(err, count) {
+      // get the actual orphaned block data
+      Orphans.find({}).sort({blockindex: -1}).skip(Number(start)).limit(Number(length)).exec(function(err, orphans) {
+        if (err)
+          return cb([], count);
+        else
+          return cb(orphans, count);
+      });
+    });
+  },
+
   fs: fs
 };

lib/explorer.js

@@ -1202,7 +1202,27 @@ module.exports = {
             arr_vout[0].amount = arr_vout[0].amount - arr_vin[0].amount;
             arr_vin.shift();
 
-            return cb(arr_vout, arr_vin, tx_type);
+            // check if any vin remains
+            if (arr_vin == null || arr_vin.length == 0) {
+              // empty vin should be linked to coinbase
+              arr_vin = [{coinbase: "coinbase"}];
+
+              var new_vout = [];
+
+              // loop through the arr_vout to create a copy of the data with coin amounts only for use with prepare_vin()
+              for (i = 0; i < arr_vout.length; i++) {
+                new_vout.push({
+                  value: arr_vout[i].amount / 100000000
+                });
+              }
+
+              // call the prepare_vin again to populate the vin data correctly
+              module.exports.prepare_vin({txid: txid, vin: arr_vin, vout: new_vout}, function(return_vin, return_tx_type_vin) {
+                return cb(arr_vout, return_vin, return_tx_type_vin);
+              });
+            } else {
+              return cb(arr_vout, arr_vin, tx_type);
+            }
           } else
             return cb(arr_vout, arr_vin, tx_type);
         } else

lib/locale.js

@@ -16,6 +16,7 @@ exports.menu_movement = "Movement",
 exports.menu_node = "Nodes",
 exports.menu_network = "Network",
 exports.menu_claim_address = "Claim Address",
+exports.menu_orphans = "Orphaned Blocks",
 
 exports.ex_title = "{1} Block Explorer",
 exports.ex_description = "A listing of all verified {1} transactions",
@@ -166,6 +167,16 @@ exports.mkt_select = "Market Select",
 exports.claim_title = "{1} Wallet Address Claim",
 exports.claim_description = "Verify ownership of your {1} wallet address and set a custom display name in the explorer",
 
+// Orphans view
+exports.orphan_title = "{1} Orphaned Blocks",
+exports.orphan_description = "A listing of valid blocks that have been orphaned and do not belong to the main blockchain",
+exports.orphan_block_list = "Orphaned Block List",
+exports.orphan_block_hash = "Orphaned Block Hash",
+exports.orphan_actual_block = "Actual Block",
+exports.orphan_prev_block = "Previous Block",
+exports.orphan_next_block = "Next Block",
+exports.view_orphan = "View Orphaned Block",
+
 // Heavycoin
 exports.heavy_vote = "Vote",
 // Heavycoin rewards view

lib/settings.js

@@ -1184,6 +1184,38 @@ exports.claim_address_page = {
   "enable_bad_word_filter": true
 };
 
+// orphans_page: a collection of settings that pertain to the orphans page
+exports.orphans_page = {
+  // enabled: Enable/disable the orphans page (true/false)
+  //          If set to false, the orphans page will be completely inaccessible
+  "enabled": false,
+  // show_panels: Determine whether to show the panels configured in the shared_pages.page_header section across the top of this page (true/false)
+  "show_panels": false,
+  // show_nethash_chart: Determine whether to show the network hashrate chart configured in the shared_pages.network_charts.nethash_chart section across the top of this page (true/false)
+  "show_nethash_chart": false,
+  // show_difficulty_chart: Determine whether to show the network difficulty chart configured in the shared_pages.network_charts.difficulty_chart section across the top of this page (true/false)
+  "show_difficulty_chart": false,
+  // page_header: a collection of settings that pertain to the orphans page header
+  "page_header": {
+    // show_img: Determine whether to show the page title image defined in the "shared_pages.page_header.page_title_image" setting (true/false)
+    "show_img": true,
+    // show_title: Determine whether to show the page title as defined in "locale.orphan_title" (true/false)
+    "show_title": true,
+    // show_last_updated: Determine whether to show a label below the page title with the last updated date (true/false)
+    "show_last_updated": true,
+    // show_description: Determine whether to show the page description as defined in "locale.orphan_description" (true/false)
+    "show_description": true
+  },
+  // orphans_table: a collection of settings that pertain to the orphans table on the orphans page
+  //                Table data is populated via the /ext/getorphanlist api
+  "orphans_table": {
+    // page_length_options: An array of page length options that determine how many items/records to display in the table at any given time
+    "page_length_options": [ 10, 25, 50, 75, 100, 250, 500, 1000 ],
+    // items_per_page: The default amount of items/records to display in the table at any given time
+    "items_per_page": 10
+  }
+};
+
 // sync: a collection of settings that pertain to the data synchronization process
 exports.sync = {
   // block_parallel_tasks: Use multiple threads to do blockchain syncing which greatly improves the initial sync speed, but there is a drawback.

locale/en.json

@@ -10,6 +10,7 @@
   "menu_node": "Nodes",
   "menu_network": "Network",
   "menu_claim_address": "Claim Address",
+  "menu_orphans": "Orphaned Blocks",
 
   // explorer view
   "ex_title": "{1} Block Explorer",
@@ -169,6 +170,16 @@
   "claim_title": "{1} Wallet Address Claim",
   "claim_description": "Verify ownership of your {1} wallet address and set a custom display name in the explorer",
 
+  // orphans view
+  "orphan_title": "{1} Orphaned Blocks",
+  "orphan_description": "A listing of valid blocks that have been orphaned and do not belong to the main blockchain",
+  "orphan_block_list": "Orphaned Block List",
+  "orphan_block_hash": "Orphaned Block Hash",
+  "orphan_actual_block": "Actual Block",
+  "orphan_prev_block": "Previous Block",
+  "orphan_next_block": "Next Block",
+  "view_orphan": "View Orphaned Block",
+
   // heavycoin rewards view
   "heavy_title": "{1} Reward/Voting Details",
   "heavy_description": "Viewing {1} voting data and coin reward change details",

models/orphans.js

@@ -0,0 +1,12 @@
+var mongoose = require('mongoose'),
+   Schema = mongoose.Schema;
+
+var OrphanSchema = new Schema({
+  blockindex: {type: Number, default: 0, index: true},
+  orphan_blockhash: {type: String, unique: true, index: true},
+  good_blockhash: {type: String, index: true},
+  prev_blockhash: {type: String, index: true},
+  next_blockhash: {type: String, index: true}
+}, {id: false});
+
+module.exports = mongoose.model('Orphan', OrphanSchema);

models/stats.js

@@ -15,7 +15,9 @@ var StatsSchema = new Schema({
   masternodes_last_updated: { type: Number, default: 0 },
   network_last_updated: { type: Number, default: 0 },
   richlist_last_updated: { type: Number, default: 0 },
-  markets_last_updated: { type: Number, default: 0 }
+  markets_last_updated: { type: Number, default: 0 },
+  orphan_index: { type: Number, default: 0 },
+  orphan_current: { type: Number, default: 0 }
 });
 
 module.exports = mongoose.model('coinstats', StatsSchema);

routes/index.js

@@ -24,7 +24,10 @@ function route_get_block(res, blockhash) {
             page_title_prefix: settings.coin.name + ' Genesis Block'
           }
         );
-      else {
+      else if (block.confirmations == -1) {
+        // this is an orphaned block, so get the data from the wallet directly
+        get_block_data_from_wallet(block, res, true);
+      } else {
         db.get_txs(block, function(txs) {
           if (txs.length > 0)
             res.render(
@@ -43,45 +46,7 @@ function route_get_block(res, blockhash) {
             );
           else {
             // cannot find block in local database so get the data from the wallet directly
-            var ntxs = [];
-
-            lib.syncLoop(block.tx.length, function (loop) {
-              var i = loop.iteration();
-
-              lib.get_rawtransaction(block.tx[i], function(tx) {
-                if (tx && tx != 'There was an error. Check your console.') {
-                  lib.prepare_vin(tx, function(vin, tx_type_vin) {
-                    lib.prepare_vout(tx.vout, block.tx[i], vin, ((!settings.blockchain_specific.zksnarks.enabled || typeof tx.vjoinsplit === 'undefined' || tx.vjoinsplit == null) ? [] : tx.vjoinsplit), function(vout, nvin, tx_type_vout) {
-                      lib.calculate_total(vout, function(total) {
-                        ntxs.push({
-                          txid: block.tx[i],
-                          vout: vout,
-                          total: total.toFixed(8)
-                        });
-
-                        loop.next();
-                      });
-                    });
-                  });
-                } else
-                  loop.next();
-              });
-            }, function() {
-              res.render(
-                'block',
-                {
-                  active: 'block',
-                  block: block,
-                  confirmations: settings.shared_pages.confirmations,
-                  txs: ntxs,
-                  showSync: db.check_show_sync_message(),
-                  customHash: get_file_timestamp('./public/css/custom.scss'),
-                  styleHash: get_file_timestamp('./public/css/style.scss'),
-                  themeHash: get_file_timestamp('./public/css/themes/' + settings.shared_pages.theme.toLowerCase() + '/bootstrap.min.css'),
-                  page_title_prefix: settings.coin.name + ' Block ' + block.height
-                }
-              );
-            });
+            get_block_data_from_wallet(block, res, false);
           }
         });
       }
@@ -157,48 +122,57 @@ function route_get_tx(res, txid) {
               lib.prepare_vout(rtx.vout, rtx.txid, vin, ((!settings.blockchain_specific.zksnarks.enabled || typeof rtx.vjoinsplit === 'undefined' || rtx.vjoinsplit == null) ? [] : rtx.vjoinsplit), function(rvout, rvin, tx_type_vout) {
                 lib.calculate_total(rvout, function(total) {
                   if (!rtx.confirmations > 0) {
-                    var utx = {
-                      txid: rtx.txid,
-                      vin: rvin,
-                      vout: rvout,
-                      total: total.toFixed(8),
-                      timestamp: rtx.time,
-                      blockhash: '-',
-                      blockindex: -1
-                    };
+                    lib.get_block(rtx.blockhash, function(block) {
+                      if (block && block != 'There was an error. Check your console.') {
+                        var utx = {
+                          txid: rtx.txid,
+                          vin: rvin,
+                          vout: rvout,
+                          total: total.toFixed(8),
+                          timestamp: (rtx.time == null ? block.time : rtx.time),
+                          blockhash: (rtx.blockhash == null ? '-' : rtx.blockhash),
+                          blockindex: block.height
+                        };
 
-                    if (settings.claim_address_page.enabled == true) {
-                      db.populate_claim_address_names(utx, function(utx) {
-                        res.render(
-                          'tx',
-                          {
-                            active: 'tx',
-                            tx: utx,
-                            confirmations: settings.shared_pages.confirmations,
-                            blockcount: -1,
-                            showSync: db.check_show_sync_message(),
-                            customHash: get_file_timestamp('./public/css/custom.scss'),
-                            styleHash: get_file_timestamp('./public/css/style.scss'),
-                            themeHash: get_file_timestamp('./public/css/themes/' + settings.shared_pages.theme.toLowerCase() + '/bootstrap.min.css'),
-                            page_title_prefix: settings.coin.name + ' Transaction ' + utx.txid
-                          }
-                        );
-                      });
-                    } else
-                      res.render(
-                        'tx',
-                        {
-                          active: 'tx',
-                          tx: utx,
-                          confirmations: settings.shared_pages.confirmations,
-                          blockcount: -1,
-                          showSync: db.check_show_sync_message(),
-                          customHash: get_file_timestamp('./public/css/custom.scss'),
-                          styleHash: get_file_timestamp('./public/css/style.scss'),
-                          themeHash: get_file_timestamp('./public/css/themes/' + settings.shared_pages.theme.toLowerCase() + '/bootstrap.min.css'),
-                          page_title_prefix: settings.coin.name + ' Transaction ' + utx.txid
-                        }
-                      );
+                        if (settings.claim_address_page.enabled == true) {
+                          db.populate_claim_address_names(utx, function(utx) {
+                            res.render(
+                              'tx',
+                              {
+                                orphan: true,
+                                active: 'tx',
+                                tx: utx,
+                                confirmations: settings.shared_pages.confirmations,
+                                blockcount: (block.height - 1),
+                                showSync: db.check_show_sync_message(),
+                                customHash: get_file_timestamp('./public/css/custom.scss'),
+                                styleHash: get_file_timestamp('./public/css/style.scss'),
+                                themeHash: get_file_timestamp('./public/css/themes/' + settings.shared_pages.theme.toLowerCase() + '/bootstrap.min.css'),
+                                page_title_prefix: settings.coin.name + ' Transaction ' + utx.txid
+                              }
+                            );
+                          });
+                        } else
+                          res.render(
+                            'tx',
+                            {
+                              orphan: true,
+                              active: 'tx',
+                              tx: utx,
+                              confirmations: settings.shared_pages.confirmations,
+                              blockcount: (block.height - 1),
+                              showSync: db.check_show_sync_message(),
+                              customHash: get_file_timestamp('./public/css/custom.scss'),
+                              styleHash: get_file_timestamp('./public/css/style.scss'),
+                              themeHash: get_file_timestamp('./public/css/themes/' + settings.shared_pages.theme.toLowerCase() + '/bootstrap.min.css'),
+                              page_title_prefix: settings.coin.name + ' Transaction ' + utx.txid
+                            }
+                          );
+                      } else {
+                        // cannot load tx
+                        route_get_index(res, null);
+                      }
+                    });
                   } else {
                     // check if blockheight exists
                     if (!rtx.blockheight && rtx.blockhash) {
@@ -418,6 +392,62 @@ function route_get_claim_form(res, hash) {
     route_get_address(res, hash);
 }
 
+function get_last_updated_date(show_last_updated, last_updated_field, cb) {
+  // check if the last updated date is needed
+  if (show_last_updated == true) {
+    // lookup the stats record
+    db.get_stats(settings.coin.name, function (stats) {
+      // return the last updated date
+      return cb(stats[last_updated_field]);
+    });
+  } else {
+    return cb(null);
+  }
+}
+
+function get_block_data_from_wallet(block, res, orphan) {
+  var ntxs = [];
+
+  lib.syncLoop(block.tx.length, function (loop) {
+    var i = loop.iteration();
+
+    lib.get_rawtransaction(block.tx[i], function(tx) {
+      if (tx && tx != 'There was an error. Check your console.') {
+        lib.prepare_vin(tx, function(vin, tx_type_vin) {
+          lib.prepare_vout(tx.vout, block.tx[i], vin, ((!settings.blockchain_specific.zksnarks.enabled || typeof tx.vjoinsplit === 'undefined' || tx.vjoinsplit == null) ? [] : tx.vjoinsplit), function(vout, nvin, tx_type_vout) {
+            lib.calculate_total(vout, function(total) {
+              ntxs.push({
+                txid: block.tx[i],
+                vout: vout,
+                total: total.toFixed(8)
+              });
+
+              loop.next();
+            });
+          });
+        });
+      } else
+        loop.next();
+    });
+  }, function() {
+    res.render(
+      'block',
+      {
+        orphan: orphan,
+        active: 'block',
+        block: block,
+        confirmations: settings.shared_pages.confirmations,
+        txs: ntxs,
+        showSync: db.check_show_sync_message(),
+        customHash: get_file_timestamp('./public/css/custom.scss'),
+        styleHash: get_file_timestamp('./public/css/style.scss'),
+        themeHash: get_file_timestamp('./public/css/themes/' + settings.shared_pages.theme.toLowerCase() + '/bootstrap.min.css'),
+        page_title_prefix: settings.coin.name + ' Block ' + block.height
+      }
+    );
+  });
+}
+
 /* GET home page. */
 
 router.get('/', function(req, res) {
@@ -770,6 +800,30 @@ router.get('/address/:hash', function(req, res) {
   route_get_address(res, req.params.hash);
 });
 
+router.get('/orphans', function(req, res) {
+  // ensure orphans page is enabled
+  if (settings.orphans_page.enabled == true) {
+    // lookup the last updated date if necessary
+    get_last_updated_date(settings.orphans_page.page_header.show_last_updated, 'blockchain_last_updated', function(last_updated_date) {
+      res.render(
+        'orphans',
+        {
+          active: 'orphans',
+          last_updated: last_updated_date,
+          showSync: db.check_show_sync_message(),
+          customHash: get_file_timestamp('./public/css/custom.scss'),
+          styleHash: get_file_timestamp('./public/css/style.scss'),
+          themeHash: get_file_timestamp('./public/css/themes/' + settings.shared_pages.theme.toLowerCase() + '/bootstrap.min.css'),
+          page_title_prefix: locale.orphan_title.replace('{1}', settings.coin.name)
+        }
+      );
+    });
+  } else {
+    // orphans page is not enabled so default to the index page
+    route_get_index(res, null);
+  }
+});
+
 router.post('/search', function(req, res) {
   if (settings.shared_pages.page_header.search.enabled == true) {
     var query = req.body.search.trim();

settings.json.template

@@ -1268,6 +1268,38 @@
     "enable_bad_word_filter": true
   },
 
+  // orphans_page: a collection of settings that pertain to the orphans page
+  "orphans_page": {
+    // enabled: Enable/disable the orphans page (true/false)
+    //          If set to false, the orphans page will be completely inaccessible
+    "enabled": true,
+    // show_panels: Determine whether to show the panels configured in the shared_pages.page_header section across the top of this page (true/false)
+    "show_panels": false,
+    // show_nethash_chart: Determine whether to show the network hashrate chart configured in the shared_pages.network_charts.nethash_chart section across the top of this page (true/false)
+    "show_nethash_chart": false,
+    // show_difficulty_chart: Determine whether to show the network difficulty chart configured in the shared_pages.network_charts.difficulty_chart section across the top of this page (true/false)
+    "show_difficulty_chart": false,
+    // page_header: a collection of settings that pertain to the orphans page header
+    "page_header": {
+      // show_img: Determine whether to show the page title image defined in the "shared_pages.page_header.page_title_image" setting (true/false)
+      "show_img": true,
+      // show_title: Determine whether to show the page title as defined in "locale.orphan_title" (true/false)
+      "show_title": true,
+      // show_last_updated: Determine whether to show a label below the page title with the last updated date (true/false)
+      "show_last_updated": true,
+      // show_description: Determine whether to show the page description as defined in "locale.orphan_description" (true/false)
+      "show_description": true
+    },
+    // orphans_table: a collection of settings that pertain to the orphans table on the orphans page
+    //                Table data is populated via the /ext/getorphanlist api
+    "orphans_table": {
+      // page_length_options: An array of page length options that determine how many items/records to display in the table at any given time
+      "page_length_options": [ 10, 25, 50, 75, 100, 250, 500, 1000 ],
+      // items_per_page: The default amount of items/records to display in the table at any given time
+      "items_per_page": 10
+    }
+  },
+
   // sync: a collection of settings that pertain to the data synchronization process
   "sync": {
     // block_parallel_tasks: Use multiple threads to do blockchain syncing which greatly improves the initial sync speed, but there is a drawback.

views/block.pug

@@ -30,6 +30,14 @@ block content
         startRotateElement('img#header-img');
     });
   .col-xs-12.col-md-12
+    if orphan != null && orphan == true
+      .col-12
+        .alert.alert-warning.alert-dismissible.fade.show(role='alert')
+          button.btn-close(type='button', data-bs-dismiss='alert')
+          .cardSpacer
+            span.fas.fa-exclamation-triangle(style='margin-right:5px')
+            strong=settings.locale.ex_warning
+          div="This is an orphaned block"
     if settings.block_page.page_header.show_img == true || settings.block_page.page_header.show_title == true || settings.block_page.page_header.show_description == true
       #page-header-container(style='align-items:' + (settings.block_page.page_header.show_img == true && settings.block_page.page_header.show_title == true && settings.block_page.page_header.show_description == true ? 'flex-start' : 'center'))
         if settings.block_page.page_header.show_img == true

views/layout.pug

@@ -117,6 +117,13 @@ html(lang='en')
           - showNethashChart = true
         if settings.claim_address_page.show_difficulty_chart == true
           - showDifficultyChart = true
+      when 'orphans'
+        if settings.orphans_page.show_panels == true
+          - showPanels = true
+        if settings.orphans_page.show_nethash_chart == true
+          - showNethashChart = true
+        if settings.orphans_page.show_difficulty_chart == true
+          - showDifficultyChart = true
       when 'reward'
         if settings.blockchain_specific.heavycoin.reward_page.show_panels == true
           - showPanels = true
@@ -1135,6 +1142,11 @@ html(lang='en')
                     a.nav-link(href='/claim')
                       span.far.fa-address-card
                       span.margin-left-5 #{settings.locale.menu_claim_address}
+                if settings.orphans_page.enabled == true
+                  li#orphans.nav-item
+                    a.nav-link(href='/orphans')
+                      span.far.fa-window-close
+                      span.margin-left-5 #{settings.locale.menu_orphans}
             if settings.shared_pages.page_header.search.enabled == true && settings.shared_pages.page_header.search.position.toString().toLowerCase() == 'inside-header'
               span#search-header-span(alt='Search', title='Search', data-bs-toggle='tooltip', data-bs-placement='left')
                 button#search-header-button(data-bs-toggle='collapse', data-bs-target='#search-navbar-collapse')
@@ -1247,6 +1259,11 @@ html(lang='en')
                   a.nav-link(href='/claim')
                     span.nav-icon.far.fa-address-card
                     span.margin-left-5 #{settings.locale.menu_claim_address}
+              if settings.orphans_page.enabled == true
+                li#orphans.nav-item(alt=settings.locale.menu_orphans, title=settings.locale.menu_orphans, data-bs-toggle='tooltip', data-bs-placement='right')
+                  a.nav-link(href='/orphans')
+                    span.nav-icon.far.fa-window-close
+                    span.margin-left-5 #{settings.locale.menu_orphans}
         div#side-offcanvas.offcanvas.offcanvas-start(tabindex='-1')
           div.offcanvas-body.d-block.navbar(class=sideBarClasses)
       div#main-container(class=mainContainerClasses)

views/orphans.pug

@@ -0,0 +1,123 @@
+extends layout
+
+block content
+  include ./includes/common.pug
+  script.
+    var setting_txPerPage = parseInt("#{settings.orphans_page.orphans_table.items_per_page}");
+    var lengthMenuOpts = !{JSON.stringify(settings.orphans_page.orphans_table.page_length_options)};
+    var addedLength = false;
+    for (i = 0; i < lengthMenuOpts.length; i++) {
+      if (!addedLength) {
+        if (lengthMenuOpts[i] > setting_txPerPage) {
+          lengthMenuOpts.splice(i, 0, setting_txPerPage);
+          addedLength = true;
+        } else if (lengthMenuOpts[i] == setting_txPerPage)
+          addedLength = true;
+      }
+    }
+    if (!addedLength && setting_txPerPage != lengthMenuOpts[lengthMenuOpts.length - 1])
+      lengthMenuOpts.push(setting_txPerPage);
+    $(document).ready(function() {
+      var otable = $('#orphans-table').dataTable({
+        autoWidth: true,
+        searching: false,
+        ordering: false,
+        lengthChange: true,
+        processing: true,
+        serverSide: true,
+        iDisplayLength: setting_txPerPage,
+        lengthMenu: lengthMenuOpts,
+        scrollX: true,
+        ajax: {
+          url: '/ext/getorphanlist',
+          beforeSend: function(jqXHR, settings) {
+            settings.url = settings.url.substring(0, settings.url.indexOf('?')) + '/' + getParameterByName('start', settings.url) + '/' + getParameterByName('length', settings.url);
+            return true;
+          }
+        },
+        language: {
+          paginate: {
+            previous: '<',
+            next: '>'
+          }
+        },
+        rowCallback: function(row, data, index) {
+          var blockindex = data[0];
+          var orphan_blockhash = data[1];
+          var good_blockhash = data[2];
+          var prev_blockhash = data[3];
+          var next_blockhash = data[4];
+          $("td:eq(0)", row).html('<a href="/block/' + orphan_blockhash + '"><span class="fa fa-eye" data-bs-toggle="tooltip" data-bs-placement="top" title="#{settings.locale.view_orphan}"></span></a>').addClass('text-center d-table-cell d-md-none');
+          $("td:eq(1)", row).html('<a href="/block/' + orphan_blockhash + '">' + orphan_blockhash + '</a>').addClass('breakWord d-none d-md-table-cell');
+          $("td:eq(2)", row).html('<a href="/block/' + good_blockhash + '">' + blockindex.toString() + '</a>').addClass('text-center');
+          $("td:eq(3)", row).html('<a href="/block/' + prev_blockhash + '">' + (blockindex - 1).toString() + '</a>').addClass('text-center');
+
+          if (next_blockhash == null)
+            $("td:eq(4)", row).html('&nbsp;');
+          else
+            $("td:eq(4)", row).html('<a href="/block/' + next_blockhash + '">' + (blockindex + 1).toString() + '</a>').addClass('text-center');
+        },
+        fnDrawCallback: function(settings) {
+          fixDataTableColumns();
+          fixFooterHeightAndPosition();
+          enableTooltips();
+        }
+      });
+
+      if ('#{settings.orphans_page.page_header.show_last_updated}' == 'true') {
+        var lastUpdatedDate = #{(last_updated == null || last_updated == '0' ? 0 : last_updated)};
+
+        if (lastUpdatedDate != 0) {
+          $('span#lastUpdatedDate').html(' ' + format_unixtime(lastUpdatedDate));
+
+          if (#{settings.shared_pages.date_time.enable_alt_timezone_tooltips} == true) {
+            $('span#lastUpdatedDate').attr('data-bs-toggle', 'tooltip').attr('data-bs-placement', 'auto').attr('title', format_unixtime(lastUpdatedDate, true));
+            enableTooltips();
+          }
+        } else
+          $('span#lastUpdatedDate').html(' N/A');
+      }
+      if (#{settings.shared_pages.page_header.page_title_image.enable_animation} == true && #{settings.orphans_page.page_header.show_img} == true)
+        startRotateElement('img#header-img');
+    });
+  .col-md-12
+    if settings.orphans_page.page_header.show_img == true || settings.orphans_page.page_header.show_title == true || settings.orphans_page.page_header.show_last_updated == true || settings.orphans_page.page_header.show_description == true
+      #page-header-container(style='align-items:' + (settings.orphans_page.page_header.show_img == true && settings.orphans_page.page_header.show_title == true && settings.orphans_page.page_header.show_last_updated == true && settings.orphans_page.page_header.show_description == true ? 'flex-start' : 'center'))
+        if settings.orphans_page.page_header.show_img == true
+          #header-img-container
+            img#header-img(src=(settings.shared_pages.page_header.page_title_image == null || settings.shared_pages.page_header.page_title_image.image_path == null || settings.shared_pages.page_header.page_title_image.image_path == '' ? '/img/page-title-img.png' : settings.shared_pages.page_header.page_title_image.image_path))
+        #page-title-container
+          if settings.orphans_page.page_header.show_title == true
+            h3#page-title #{settings.locale.orphan_title.replace('{1}', settings.coin.name)}
+          if settings.orphans_page.page_header.show_last_updated == true
+            if settings.orphans_page.page_header.show_title != true && settings.orphans_page.page_header.show_description != true
+              #page-title-container
+                .sub-page-header
+                  span.fw-bold=settings.locale.last_updated + ':'
+                  span.text-muted#lastUpdatedDate
+            else
+              .sub-page-header(style='margin-bottom:' + (settings.orphans_page.page_header.show_description == true ? '5' : '0') + 'px')
+                span.fw-bold=settings.locale.last_updated + ':'
+                span.text-muted#lastUpdatedDate
+          if settings.orphans_page.page_header.show_description == true
+            if settings.orphans_page.page_header.show_title != true && settings.orphans_page.page_header.show_last_updated != true
+              #page-title-container
+                .sub-page-header.text-muted=settings.locale.orphan_description
+            else
+              .sub-page-header.text-muted=settings.locale.orphan_description
+      .cardSpacer.clearfix
+    .card.card-default.border-0.cardSpacer
+      .card-header
+        strong=settings.locale.orphan_block_list
+      table#orphans-table.table.table-bordered.table-striped.table-paging.table-hover.mobile-border-right
+        - var theadClasses = [];
+        if settings.shared_pages.table_header_bgcolor != null && settings.shared_pages.table_header_bgcolor != ''
+          - theadClasses.push('table-' + settings.shared_pages.table_header_bgcolor);
+        thead
+          tr(class=theadClasses)
+            th.d-table-cell.d-md-none
+            th.d-none.d-md-table-cell #{settings.locale.orphan_block_hash}
+            th.text-center #{settings.locale.orphan_actual_block}
+            th.text-center #{settings.locale.orphan_prev_block}
+            th.text-center #{settings.locale.orphan_next_block}
+        tbody

views/tx.pug

@@ -17,6 +17,14 @@ block content
         startRotateElement('img#header-img');
     });
   .col-xs-12.col-md-12
+    if orphan != null && orphan == true
+      .col-12
+        .alert.alert-warning.alert-dismissible.fade.show(role='alert')
+          button.btn-close(type='button', data-bs-dismiss='alert')
+          .cardSpacer
+            span.fas.fa-exclamation-triangle(style='margin-right:5px')
+            strong=settings.locale.ex_warning
+          div="This is an orphaned transaction"
     if settings.transaction_page.page_header.show_img == true || settings.transaction_page.page_header.show_title == true || settings.transaction_page.page_header.show_description == true
       #page-header-container(style='align-items:' + (settings.transaction_page.page_header.show_img == true && settings.transaction_page.page_header.show_title == true && settings.transaction_page.page_header.show_description == true ? 'flex-start' : 'center'))
         if settings.transaction_page.page_header.show_img == true