Allow binding to specific interface addresses

https://trello.com/c/aWazKGQc/404-allow-binding-to-specified-ip-address

src/NzbDrone.Api/Config/HostConfigModule.cs

@@ -1,4 +1,5 @@
-using System.Linq;
+using System;
+using System.Linq;
 using System.Reflection;
 using FluentValidation;
 using NzbDrone.Common.EnvironmentInfo;
@@ -25,6 +26,8 @@ namespace NzbDrone.Api.Config
 
             SharedValidator.RuleFor(c => c.Branch).NotEmpty().WithMessage("Branch name is required, 'master' is the default");
             SharedValidator.RuleFor(c => c.Port).ValidPort();
+            SharedValidator.RuleFor(c => c.BindAddress).ValidIp4Address().When(c => c.BindAddress != "*");
+            SharedValidator.RuleFor(c => c.Port).InclusiveBetween(1, 65535);
 
             SharedValidator.RuleFor(c => c.Username).NotEmpty().When(c => c.AuthenticationEnabled);
             SharedValidator.RuleFor(c => c.Password).NotEmpty().When(c => c.AuthenticationEnabled);

src/NzbDrone.Api/Config/HostConfigResource.cs

@@ -6,6 +6,7 @@ namespace NzbDrone.Api.Config
 {
     public class HostConfigResource : RestResource
     {
+        public String BindAddress { get; set; }
         public Int32 Port { get; set; }
         public Int32 SslPort { get; set; }
         public Boolean EnableSsl { get; set; }

src/NzbDrone.Core/Configuration/ConfigFileProvider.cs

@@ -23,6 +23,7 @@ namespace NzbDrone.Core.Configuration
         Dictionary<string, object> GetConfigDictionary();
         void SaveConfigDictionary(Dictionary<string, object> configValues);
 
+        string BindAddress { get; }
         int Port { get; }
         int SslPort { get; }
         bool EnableSsl { get; }
@@ -110,6 +111,22 @@ namespace NzbDrone.Core.Configuration
             _eventAggregator.PublishEvent(new ConfigFileSavedEvent());
         }
 
+        public string BindAddress
+        {
+            get
+            {
+                const string defaultValue = "*";
+
+                string bindAddress = GetValue("BindAddress", defaultValue);
+                if (string.IsNullOrWhiteSpace(bindAddress))
+                {
+                    return defaultValue;
+                }
+
+                return bindAddress;
+            }
+        }
+
         public int Port
         {
             get { return GetValueInt("Port", 8989); }

src/NzbDrone.Core/Validation/RuleBuilderExtensions.cs

@@ -1,4 +1,6 @@
-using System.Text.RegularExpressions;
+using System.Net;
+using System.Net.Sockets;
+using System.Text.RegularExpressions;
 using FluentValidation;
 using FluentValidation.Validators;
 using NzbDrone.Core.Parser;
@@ -33,6 +35,21 @@ namespace NzbDrone.Core.Validation
             return ruleBuilder.SetValidator(new InclusiveBetweenValidator(1, 65535));
         }
 
+        public static IRuleBuilderOptions<T, string> ValidIp4Address<T>(this IRuleBuilder<T, string> ruleBuilder)
+        {
+
+            return ruleBuilder.Must(x =>
+            {
+                IPAddress parsedAddress;
+                if (!IPAddress.TryParse(x, out parsedAddress))
+                {
+                    return false;                    
+                }
+
+                return parsedAddress.AddressFamily == AddressFamily.InterNetwork;
+            });
+        }
+
         public static IRuleBuilderOptions<T, Language> ValidLanguage<T>(this IRuleBuilder<T, Language> ruleBuilder)
         {
             return ruleBuilder.SetValidator(new LangaugeValidator());

src/NzbDrone.Host/AccessControl/UrlAclAdapter.cs

@@ -37,30 +37,30 @@ namespace NzbDrone.Host.AccessControl
 
         public void ConfigureUrl()
         {
-            var localHttpUrls = BuildUrls("http", "localhost", _configFileProvider.Port);
+            var localHostHttpUrls = BuildUrls("http", "localhost", _configFileProvider.Port);
-            var wildcardHttpUrls = BuildUrls("http", "*", _configFileProvider.Port);
+            var interfaceHttpUrls = BuildUrls("http", _configFileProvider.BindAddress, _configFileProvider.Port);
 
-            var localHttpsUrls = BuildUrls("https", "localhost", _configFileProvider.SslPort);
+            var localHostHttpsUrls = BuildUrls("https", "localhost", _configFileProvider.SslPort);
-            var wildcardHttpsUrls = BuildUrls("https", "*", _configFileProvider.SslPort);
+            var interfaceHttpsUrls = BuildUrls("https", _configFileProvider.BindAddress, _configFileProvider.SslPort);
 
             if (!_configFileProvider.EnableSsl)
             {
-                localHttpsUrls.Clear();
+                Urls.Clear();
-                wildcardHttpsUrls.Clear();
+                interfaceHttpsUrls.Clear();
             }
 
             if (OsInfo.IsWindows && !_runtimeInfo.IsAdmin)
             {
-                var httpUrls = wildcardHttpUrls.All(IsRegistered) ? wildcardHttpUrls : localHttpUrls;
+                var httpUrls = interfaceHttpUrls.All(IsRegistered) ? interfaceHttpUrls : localHostHttpUrls;
-                var httpsUrls = wildcardHttpsUrls.All(IsRegistered) ? wildcardHttpsUrls : localHttpsUrls;
+                var httpsUrls = interfaceHttpsUrls.All(IsRegistered) ? interfaceHttpsUrls : localHostHttpsUrls;
 
                 Urls.AddRange(httpUrls);
                 Urls.AddRange(httpsUrls);
             }
             else
             {
-                Urls.AddRange(wildcardHttpUrls);
+                Urls.AddRange(interfaceHttpUrls);
-                Urls.AddRange(wildcardHttpsUrls);
+                Urls.AddRange(interfaceHttpsUrls);
 
                 if (OsInfo.IsWindows)
                 {

src/UI/Settings/General/GeneralViewTemplate.hbs

@@ -2,6 +2,18 @@
     <fieldset>
         <legend>Start-Up</legend>
 
+        <div class="form-group advanced-setting">
+            <label class="col-sm-3 control-label">Bind Address</label>
+
+            <div class="col-sm-1 col-sm-push-4 help-inline">
+                <i class="icon-nd-form-warning" title="Requires restart to take effect" />
+            </div>
+
+            <div class="col-sm-4 col-sm-pull-1">
+                <input type="text" placeholder="*" name="bindAddress" class="form-control" />
+            </div>
+        </div>
+
         <div class="form-group">
             <label class="col-sm-3 control-label">Port Number</label>