added feature to rebuild a transaction from the txid, useful for RBF and double spending :o. Changed donation address. Released as version 1.6

Author: root

README.md

@@ -1,7 +1,7 @@
 coinbin
 =======
 
-A Open Source Browser Based Bitcoin Wallet. Version 1.5 beta by OutCast3k
+A Open Source Browser Based Bitcoin Wallet. Version 1.6 beta by OutCast3k
 
 Live version available at http://coinb.in/ or http://4zpinp6gdkjfplhk.onion
 
@@ -24,12 +24,13 @@ Coinb.in supports a number of key features such as:
 - Brain wallet support.
 - Compatible with bitcoin-qt
 - An offical .onion address for tor users.
-- Offline qrcode creator and scanning tool
-- HD (bip32) support
-- Supports altcoins such as litecoin
-- Replace by fee (RBF) Support
-- Segwit Support
-- Bech32 address support
+- Offline qrcode creator and scanning tool.
+- HD (bip32) support.
+- Supports altcoins such as litecoin.
+- Replace by fee (RBF) Support.
+- Segwit Support.
+- Bech32 address support.
 - Fee calculator - https://coinb.in/#fees
+- Transaction rebuild support for RBF and double spending.
 
-Donate to 3K1oFZMks41C7qDYBsr72SYjapLqDuSYuN to see more development!
+Donate to 33tht1bKDgZVxb39MnZsWa8oxHXHvUYE4G to see more development!

index.html

@@ -643,7 +643,7 @@ <h2>Transaction <small>Create a new transaction</small></h2>
 
 								<label>Replace By Fee (RBF)</label>
 								<p class="checkbox">
-									<label><input type="checkbox" id="txRBF" class="checkbox-inline"> Make this a <a href="https://en.bitcoin.it/wiki/Transaction_replacement" target="_blank">RBF transaction</a>.</label>
+									<label><input type="checkbox" id="txRBF" class="checkbox-inline" checked> Make this a <a href="https://en.bitcoin.it/wiki/Transaction_replacement" target="_blank">RBF transaction</a>.</label>
 								</p>
 
 								<hr>
@@ -1333,7 +1333,7 @@ <h2>Development <small>Javascript framework, API and more</small></h2>
 
 					<div class="tab-pane tab-content" id="about">
 						<h2>About <small>open source bitcoin wallet</small></h2>
-						<p>Version 1.5</p>
+						<p>Version 1.6</p>
 						<p>Compatible with bitcoin core</p>
 						<p>Github <a href="https://github.com/OutCast3k/coinbin/">https://github.com/OutCast3k/coinbin/</a></p>
 						<p>TOR <a href="http://4zpinp6gdkjfplhk.onion">4zpinp6gdkjfplhk.onion</a></p>
@@ -1349,7 +1349,7 @@ <h3>Privacy</h3>
 						<h3>Support</h3>
 						<p>We recommend that you first check our <a href="https://status.coinb.in/" target="_blank">service status</a> page and then <a href="https://blog.coinb.in/" target="_blank">blog</a> page which has multiple <a href="https://blog.coinb.in/guides" target="_blank">guides</a>. However if the problem persists you can contact us by emailing support{at}coinb.in.</p>
 						<h3>Donate</h3>
-						<p>Please donate to <a href="bitcoin:3K1oFZMks41C7qDYBsr72SYjapLqDuSYuN">3K1oFZMks41C7qDYBsr72SYjapLqDuSYuN</a> if you found this project useful or want to see more features!</p>
+						<p>Please donate to <a href="bitcoin:33tht1bKDgZVxb39MnZsWa8oxHXHvUYE4G">33tht1bKDgZVxb39MnZsWa8oxHXHvUYE4G</a> if you found this project useful or want to see more features!</p>
 					</div>
 
 					<div class="tab-pane tab-content" id="settings">
@@ -1475,7 +1475,7 @@ <h2>Settings <small> making coinb.in even better!</small></h2>
 
 		<div id="footer">
 			<div class="container text-right">
-	        		<p class="text-muted">Version 1.5</p>
+	        		<p class="text-muted">Version 1.6</p>
 			</div>
 		</div>
 

js/coin.js

@@ -19,7 +19,7 @@
 	coinjs.compressed = false;
 
 	/* other vars */
-	coinjs.developer = '3K1oFZMks41C7qDYBsr72SYjapLqDuSYuN'; //bitcoin
+	coinjs.developer = '33tht1bKDgZVxb39MnZsWa8oxHXHvUYE4G'; //bitcoin
 
 	/* bit(coinb.in) api vars */
 	coinjs.hostname	= ((document.location.hostname.split(".")[(document.location.hostname.split(".")).length-1]) == 'onion') ? '4zpinp6gdkjfplhk.onion' : 'coinb.in';
@@ -1067,6 +1067,11 @@
 			coinjs.ajax(coinjs.host+'?uid='+coinjs.uid+'&key='+coinjs.key+'&setmodule=addresses&request=unspent&address='+address+'&r='+Math.random(), callback, "GET");
 		}
 
+		/* list transaction data */
+		r.getTransaction = function(txid, callback) {
+			coinjs.ajax(coinjs.host+'?uid='+coinjs.uid+'&key='+coinjs.key+'&setmodule=bitcoin&request=gettransaction&txid='+txid+'&r='+Math.random(), callback, "GET");
+		}
+
 		/* add unspent to transaction */
 		r.addUnspent = function(address, callback, script, segwit, sequence){
 			var self = this;

js/coinbin.js

@@ -881,7 +881,7 @@ $(document).ready(function() {
 		$("#redeemFromStatus, #redeemFromAddress").addClass('hidden');
 
 		if(redeem.from=='multisigAddress'){
-			$("#redeemFromStatus").removeClass('hidden').html('<span class="glyphicon glyphicon-exclamation-sign"></span> You should use the redeem script, not the multisig address!');
+			$("#redeemFromStatus").removeClass('hidden').html('<span class="glyphicon glyphicon-exclamation-sign"></span> You should use the redeem script, not its address!');
 			return false;
 		}
 
@@ -973,9 +973,15 @@ $(document).ready(function() {
 				r.redeemscript = true;
 				r.decodescript = decodeRs;
 			} else { // something else
-				r.addr = '';
-				r.from = 'other';
-				r.redeemscript = false;
+				if(string.match(/^[a-f0-9]{64}$/i)){
+					r.addr = string;
+					r.from = 'txid';
+					r.redeemscript = false;
+				} else {
+					r.addr = '';
+					r.from = 'other';
+					r.redeemscript = false;
+				}
 			}
 		}
 		return r;
@@ -1042,9 +1048,61 @@ $(document).ready(function() {
 		}
 	}
 
+	/* global function to add inputs to page */
+	function addInput(address, amount) {
+		if($("#recipients .recipient:last .address:last").val() != ""){
+			$("#recipients .addressAddTo:first").click();
+		};
+
+		$("#recipients .address:last").val(address);
+		$("#recipients .amount:last").val(amount);
+	}
+
+
 	/* default function to retreive unspent outputs*/	
 	function listUnspentDefault(redeem){
+
 		var tx = coinjs.transaction();
+
+		// unspent from transaction; double spend and RBF.
+
+		if(redeem.from == 'txid'){
+			tx.getTransaction(redeem.addr, function(data){
+
+				$("#redeemFromAddress").removeClass('hidden').html('<span class="glyphicon glyphicon-info-sign"></span> Attempted to rebuild transaction id <a href="'+explorer_tx+redeem.addr+'" target="_blank">'+redeem.addr+'</a>');
+
+				$.each($(data).find("inputs").children(), function(i,o){
+					var tx = $(o).find("txid").text();
+					var n = $(o).find("output_no").text();
+					var amount = (($(o).find("value").text()*1)).toFixed(8);
+
+					var script = coinjs.script();
+					var s = script.spendToScript($(o).find("address").text());
+					var scr = Crypto.util.bytesToHex(s.buffer);
+
+					addOutput(tx, n, scr, amount);
+
+				});
+
+				$("#recipients .addressRemoveTo").click();
+				$("#recipients .address").val("");
+				$("#recipients .amount").val("");
+
+				$.each($(data).find("outputs").children(), function(i,o){
+					addInput($(o).find("address").text(), $(o).find("value").text());
+				});
+
+				$("#redeemFromBtn").html("Load").attr('disabled',false);
+				totalInputAmount();
+				validateOutputAmount();
+
+			});
+
+			return;
+		}
+
+		// unspent from address
+
 		tx.listUnspent(redeem.addr, function(data){
 			if(redeem.addr) {
 				$("#redeemFromAddress").removeClass('hidden').html('<span class="glyphicon glyphicon-info-sign"></span> Retrieved unspent inputs from address <a href="'+explorer_addr+redeem.addr+'" target="_blank">'+redeem.addr+'</a>');
@@ -1078,10 +1136,9 @@ $(document).ready(function() {
 			},
 			success: function(data) {
 				if (data.address) { // address field will always be present, txrefs is only present if there are UTXOs
-					$("#redeemFromAddress").removeClass('hidden').html(
-						'<span class="glyphicon glyphicon-info-sign"></span> Retrieved unspent inputs from address <a href="'+explorer_addr+redeem.addr+'" target="_blank">'+redeem.addr+'</a>');
+					$("#redeemFromAddress").removeClass('hidden').html('<span class="glyphicon glyphicon-info-sign"></span> Retrieved unspent inputs from address <a href="'+explorer_addr+redeem.addr+'" target="_blank">'+redeem.addr+'</a>');
 					for(var i in data.txrefs){
-                        var o = data.txrefs[i]
+						var o = data.txrefs[i];
 						var tx = ((""+o.tx_hash).match(/.{1,2}/g).reverse()).join("")+'';
 						if(tx.match(/^[a-f0-9]+$/)){
 							var n = o.tx_output_n;

sha1sum

@@ -1,9 +1,9 @@
----- Version 1.5 2020.07.05 ----
+---- Version 1.6 2020.07.06 ----
 77e4519962e2f6a9fc93342137dbb31c33b76b04  ./js/aes.js
 3a09a8fc0cfe828b57fc798d668234d0490ee1a6  ./js/bootstrap-datetimepicker.min.js
 253711c6d825de55a8360552573be950da180614  ./js/bootstrap.min.js
-7708a3771dd2749807f2bfc41af407b68888ae5d  ./js/coinbin.js
-e8a374661d3e0636b9948d34adcd81f6d69684cc  ./js/coin.js
+7dd75e07389808d57261bca630a5bab55ce9faef  ./js/coinbin.js
+228cdcf29d33a5eadd360e85a6220e4853ee4590  ./js/coin.js
 988565bc2cb402d63ed5c5fd7ff47c4278efc2c5  ./js/collapse.js
 9ba5ede3d7f9d4c8fd623395f196adfdcf7e970f  ./js/crypto-min.js
 f7c09f2f5a721371e7d478050119f7e2d58e3ef9  ./js/crypto-sha256-hmac.js
@@ -30,6 +30,6 @@ ca35b697d99cae4d1b60f2d60fcd37771987eb07  ./fonts/glyphicons-halflings-regular.w
 de51a8494180a6db074af2dee2383f0a363c5b08  ./fonts/glyphicons-halflings-regular.svg
 278e49a86e634da6f2a02f3b47dd9d2a8f26210f  ./fonts/glyphicons-halflings-regular.woff
 44bc1850f570972267b169ae18f1cb06b611ffa2  ./fonts/glyphicons-halflings-regular.ttf
-4665ee4d8ca96db25954f6f3587ac367386eb9e8  ./README.md
-e02815b3c834379e883b1e8b8bc6409654582695  ./index.html
+ee481606d8d48f402d152fa632ba9e5f9da7f169  ./README.md
+5054e03cff2cfcd1ce5296fe2659ca2d46d64fe4  ./index.html
 7130b64e3ef4cf6f2f1550e902f081c58dc053de  ./test.html