Fixed issue #1292 - Don't use proxy on localhost addresses.

app/assets/javascripts/app/controllers/_settings/area_proxy.coffee

@@ -2,7 +2,7 @@ class App.SettingsAreaProxy extends App.Controller
   events:
     'submit form': 'update'
     'click .js-submit': 'update'
-    'click .js-test': 'test2'
+    'click .js-test': 'testConnection'
 
   constructor: ->
     super
@@ -14,20 +14,21 @@ class App.SettingsAreaProxy extends App.Controller
       proxy: App.Setting.get('proxy')
       proxy_username: App.Setting.get('proxy_username')
       proxy_password: App.Setting.get('proxy_password')
+      proxy_no: App.Setting.get('proxy_no')
     )
 
   update: (e) =>
     e.preventDefault()
     @formDisable(e)
     params = @formParam(e)
-    console.log('params', params)
     App.Setting.set('proxy', params.proxy)
     App.Setting.set('proxy_username', params.proxy_username)
     App.Setting.set('proxy_password', params.proxy_password)
+    App.Setting.set('proxy_no', params.proxy_no)
     @formEnable(e)
     @render()
 
-  test2: (e) =>
+  testConnection: (e) =>
     e.preventDefault()
     params = @formParam(e)
     @ajax(

app/assets/javascripts/app/views/settings/proxy.jst.eco

@@ -18,6 +18,12 @@
       <input type="text" name="proxy_password" value="<%= @proxy_password %>" class="form-control">
     </div>
   </div>
+  <p class="help-text"><%- @T('No proxy for the following hosts.') %></p>
+  <div class="horizontal end">
+    <div class="form-item flex">
+      <input type="text" name="proxy_no" value="<%= @proxy_no %>" placeholder="localhost,127.0.0.1" class="form-control">
+    </div>
+  </div>
   <div class="horizontal justify-end form-controls">
     <button class="btn btn js-test"><%- @T('Test Connection') %></button>
     <button class="btn btn--primary js-submit hide"><%- @T('Submit') %></button>

db/migrate/20170727000001_setting_proxy.rb

@@ -1,4 +1,4 @@
-class AddProxySettings439 < ActiveRecord::Migration
+class SettingProxy < ActiveRecord::Migration
   def up
 
     # return if it's a new setup
@@ -53,30 +53,61 @@ class AddProxySettings439 < ActiveRecord::Migration
       },
       frontend: false
     )
+    # fix typo
+    setting = Setting.find_by(name: 'proxy_password')
+    if setting
+      setting.options[:form][0][:name] = 'proxy_password'
+      setting.save!
+    else
+      Setting.create_if_not_exists(
+        title: 'Proxy Password',
+        name: 'proxy_password',
+        area: 'System::Network',
+        description: 'Password for proxy connection.',
+        options: {
+          form: [
+            {
+              display: '',
+              null: false,
+              name: 'proxy_password',
+              tag: 'input',
+            },
+          ],
+        },
+        state: '',
+        preferences: {
+          disabled: true,
+          online_service_disable: true,
+          prio: 3,
+          permission: ['admin.system'],
+        },
+        frontend: false
+      )
+    end
     Setting.create_if_not_exists(
-      title: 'Proxy Password',
-      name: 'proxy_password',
+      title: 'No Proxy',
+      name: 'proxy_no',
       area: 'System::Network',
-      description: 'Password for proxy connection.',
+      description: 'No proxy for the following hosts.',
       options: {
         form: [
           {
             display: '',
             null: false,
-            name: 'proxy_passowrd',
+            name: 'proxy_no',
             tag: 'input',
           },
         ],
       },
-      state: '',
+      state: 'localhost,127.0.0.0,::1',
       preferences: {
         disabled: true,
         online_service_disable: true,
-        prio: 3,
+        prio: 4,
         permission: ['admin.system'],
       },
       frontend: false
     )
-
   end
+
 end

db/seeds/settings.rb

@@ -479,7 +479,7 @@ Setting.create_if_not_exists(
       {
         display: '',
         null: false,
-        name: 'proxy_passowrd',
+        name: 'proxy_password',
         tag: 'input',
       },
     ],
@@ -493,6 +493,30 @@ Setting.create_if_not_exists(
   },
   frontend: false
 )
+Setting.create_if_not_exists(
+  title: 'No Proxy',
+  name: 'proxy_no',
+  area: 'System::Network',
+  description: 'No proxy for the following hosts.',
+  options: {
+    form: [
+      {
+        display: '',
+        null: false,
+        name: 'proxy_no',
+        tag: 'input',
+      },
+    ],
+  },
+  state: 'localhost,127.0.0.0,::1',
+  preferences: {
+    disabled: true,
+    online_service_disable: true,
+    prio: 4,
+    permission: ['admin.system'],
+  },
+  frontend: false
+)
 
 Setting.create_if_not_exists(
   title: 'Send client stats',

lib/user_agent.rb

@@ -264,7 +264,10 @@ returns
   def self.get_http(uri, options)
 
     proxy = options['proxy'] || Setting.get('proxy')
-    if proxy.present?
+    proxy_no = options['proxy_no'] || Setting.get('proxy_no') || ''
+    proxy_no = proxy_no.split(',').map(&:strip) || []
+    proxy_no.push('localhost', '127.0.0.1', '::1')
+    if proxy.present? && !proxy_no.include?(uri.host.downcase)
       if proxy =~ /^(.+?):(.+?)$/
         proxy_host = $1
         proxy_port = $2