From f6523fcc2151b49fe88b9380a2b7fa6039ea0473 Mon Sep 17 00:00:00 2001
From: Taylor Helsper <tehelsper@gmail.com>
Date: Sat, 29 Jun 2019 21:08:19 -0500
Subject: [PATCH] Add ability to change alias

---
 rootfs/standard/usr/bin/mynode_startup.sh     |  2 +-
 rootfs/standard/var/www/mynode/lnd.py         | 35 +++++++++++++-
 .../var/www/mynode/templates/lnd.html         | 47 ++++++++++++++++++-
 3 files changed, 81 insertions(+), 3 deletions(-)

diff --git a/rootfs/standard/usr/bin/mynode_startup.sh b/rootfs/standard/usr/bin/mynode_startup.sh
index 92712caf..3ff9487f 100755
--- a/rootfs/standard/usr/bin/mynode_startup.sh
+++ b/rootfs/standard/usr/bin/mynode_startup.sh
@@ -82,7 +82,7 @@ fi
 
 # Setup LND Node Name
 if [ ! -f /home/bitcoin/.mynode/.lndalias ]; then
-    echo "mynodebtc.com [myNode]"> /home/bitcoin/.mynode/.lndalias
+    echo "mynodebtc.com [myNode]" > /home/bitcoin/.mynode/.lndalias
 fi
 
 
diff --git a/rootfs/standard/var/www/mynode/lnd.py b/rootfs/standard/var/www/mynode/lnd.py
index 933392ec..69322304 100644
--- a/rootfs/standard/var/www/mynode/lnd.py
+++ b/rootfs/standard/var/www/mynode/lnd.py
@@ -3,6 +3,7 @@ from pprint import pprint, pformat
 from threading import Timer
 from bitcoin_info import *
 from lightning_info import *
+from settings import reboot_device
 import base64
 import subprocess
 import json
@@ -10,7 +11,7 @@ import pam
 import time
 import re
 import requests
-import os.path
+import os
 
 
 mynode_lnd = Blueprint('mynode_lnd',__name__)
@@ -234,3 +235,35 @@ def page_lnd_lndconnect():
         "lndconnect_remote_rest_img": lndconnect_remote_rest_img
     }
     return render_template('lndconnect.html', **templateData)
+
+
+@mynode_lnd.route("/lnd/change_alias", methods=["POST"])
+def page_lnd_change_alias():
+    # Load page
+    p = pam.pam()
+    pw = request.form.get('password_change_alias')
+    if pw == None or p.authenticate("admin", pw) == False:
+        return redirect(url_for(".page_lnd", error_message="Invalid Password"))
+
+    # Change alias
+    alias = request.form.get('alias')
+    if alias == None or alias == "":
+        return redirect(url_for(".page_lnd", error_message="Empty Alias"))
+    if len(alias) > 35:
+        return redirect(url_for(".page_lnd", error_message="Invalid Alias"))
+    with open("/home/bitcoin/.mynode/.lndalias", "w") as f:
+        utf8_alias = alias.decode('utf-8', 'ignore')
+        f.write(utf8_alias)
+        f.close()
+
+    # Reboot
+    t = Timer(1.0, reboot_device)
+    t.start()
+
+    # Wait until device is restarted
+    templateData = {
+        "title": "myNode Reboot",
+        "header_text": "Restarting",
+        "subheader_text": "This will take several minutes..."
+    }
+    return render_template('reboot.html', **templateData)
diff --git a/rootfs/standard/var/www/mynode/templates/lnd.html b/rootfs/standard/var/www/mynode/templates/lnd.html
index a42219ba..91c684f4 100644
--- a/rootfs/standard/var/www/mynode/templates/lnd.html
+++ b/rootfs/standard/var/www/mynode/templates/lnd.html
@@ -14,6 +14,8 @@
 
         <script>
             $(document).ready(function() {
+
+                alias="{{alias}}"
     
                 function downloadMacaroon() {
                     $("#download_macaroon_form").submit();
@@ -43,6 +45,32 @@
                     download_macaroon_dialog.dialog( "close" );
                 });
 
+                function change_alias() {
+                    $("#change_alias_form").submit();
+                    change_alias_dialog.dialog( "close" );
+                }
+                change_alias_dialog = $( "#change-alias-dialog" ).dialog({
+                    autoOpen: false,
+                    resizable: false,
+                    height: "auto",
+                    width: 600,
+                    modal: true,
+                    position: { my: "center top", at: "center top", of: window, collision: "none" },
+                    buttons: {
+                        "Save": change_alias,
+                        Cancel: function() {
+                            change_alias_dialog.dialog( "close" );
+                        }
+                    },
+                    open: function() {
+                        $("#alias").val(alias)
+                        $("#password_change_alias").val("")
+                    }
+                });
+                $("#change_alias").on("click", function() {
+                    change_alias_dialog.dialog( "open" );
+                });
+
                 function lndconnect() {
                     $("#lndconnect_form").submit();
                     lndconnect_dialog.dialog( "close" );
@@ -148,7 +176,7 @@
             </div>
             <div class="info_tile">
                 <div class="info_tile_header">Alias</div>
-                <div class="info_tile_contents">{{alias}}</div>
+                <div class="info_tile_contents">{{alias}} <a class="ui-button ui-widget ui-corner-all mynode_button_small" id="change_alias" href="#"><span class="ui-icon ui-icon-gear"></a></div>
             </div>
             <div class="info_tile">
                 <div class="info_tile_header">Num Peers</div>
@@ -249,6 +277,23 @@
             </form>
         </div>
 
+        <div id="change-alias-dialog" title="Change LND Alias" style="display:none;">
+            <form id="change_alias_form" name="change_alias_form" action="/lnd/change_alias" method="POST">
+                <p>The LND alias is a public name for your lightning node and you can modify it with the form below. Changing the alias will restart your myNode to take effect.</p>
+                <p>Please enter a new alias and your current password.</p>
+                <b>New Alias:</b>
+                <br/>
+                <input type="text" name="alias" id="alias" value="" class="text ui-widget-content ui-corner-all" size="35" maxlength="35">
+                <br/><br/>
+                <b>Password:</b>
+                <br/>
+                <input type="password" name="password_change_alias" id="password_change_alias" value="" class="text ui-widget-content ui-corner-all">
+            
+                <!-- Allow form submission with keyboard without duplicating the dialog button -->
+                <input type="submit" tabindex="-1" style="position:absolute; top:-1000px">
+            </form>
+        </div>
+
         <div id="lndconnect-dialog" title="LND Connect Access" style="display:none;">
             <form id="lndconnect_form" name="lndconnect_form" action="/lnd/lndconnect" method="POST">
                 <p>LND Connect info will allow access to your Lightning Wallet! Do not share this info with others