Fix case-insensitive address search

app.js

@@ -68,7 +68,7 @@ app.use('/ext/getmoneysupply', function(req,res){
 });
 
 app.use('/ext/getaddress/:hash', function(req,res){
-  db.get_address(req.params.hash, function(address){
+  db.get_address(req.params.hash, false, function(address){
     if (address) {
       var a_ext = {
         address: address.a_id,
@@ -85,7 +85,7 @@ app.use('/ext/getaddress/:hash', function(req,res){
 });
 
 app.use('/ext/getbalance/:hash', function(req,res){
-  db.get_address(req.params.hash, function(address){
+  db.get_address(req.params.hash, false, function(address){
     if (address) {
       res.send((address.balance / 100000000).toString().replace(/(^-+)/mg, ''));
     } else {

lib/database.js

@@ -20,14 +20,24 @@ var mongoose = require('mongoose')
   , stex = require('./markets/stex')
   , coindesk = require('./apis/coindesk');
 
-function find_address(hash, cb) {
-  Address.findOne({a_id: { $regex: hash, $options: 'i' }}, function(err, address) {
-    if(address) {
-      return cb(address);
-    } else {
-      return cb();
-    }
-  });
+function find_address(hash, caseSensitive, cb) {
+  if (caseSensitive) {
+    // faster search but only matches exact string including case
+    Address.findOne({a_id: hash}, function(err, address) {
+      if (address)
+        return cb(address);
+      else
+        return cb();
+    });
+  } else {
+    // slower search but matches exact string ignoring case
+    Address.findOne({a_id: {$regex: '^' + hash + '$', $options: 'i'}}, function(err, address) {
+      if (address)
+        return cb(address);
+      else
+        return cb();
+    });
+  }
 }
 
 function find_richlist(coin, cb) {
@@ -42,7 +52,7 @@ function find_richlist(coin, cb) {
 
 function update_address(hash, txid, amount, type, cb) {
   // Check if address exists
-  find_address(hash, function(address) {
+  find_address(hash, true, function(address) {
     if (address) {
       // if coinbase (new coins PoW), update sent only and return cb.
       if ( hash == 'coinbase' ) {
@@ -308,8 +318,8 @@ module.exports = {
     });
   },
 
-  get_address: function(hash, cb) {
-    find_address(hash, function(address){
+  get_address: function(hash, caseSensitive, cb) {
+    find_address(hash, caseSensitive, function(address){
       return cb(address);
     });
   },

routes/index.js

@@ -93,7 +93,7 @@ function route_get_index(res, error) {
 }
 
 function route_get_address(res, hash, count) {
-  db.get_address(hash, function(address) {
+  db.get_address(hash, false, function(address) {
     if (address) {
       var txs = [];
       var hashes = address.txs.reverse();
@@ -252,7 +252,7 @@ router.post('/search', function(req, res) {
       });
     }
   } else {
-    db.get_address(query, function(address) {
+    db.get_address(query, false, function(address) {
       if (address) {
         res.redirect('/address/' + address.a_id);
       } else {