detect os in browser and show proper download link

We add a class to the html element based on the detected os and use that to pick which download link should be visible.

If we detect an os that is not supported we display a deactivated download link instead with all alternatives.

5 files changed, 158 insertions, 5 deletions

diff --git a/core/app/assets/javascripts/platform.js b/core/app/assets/javascripts/platform.js
new file mode 100644
index 0000000..3ab77d7
--- /dev/null
+++ b/core/app/assets/javascripts/platform.js
@@ -0,0 +1,92 @@
+/* Inspired by mozillas platform detection:
+  https://github.com/mozilla/bedrock/tree/master/media/js/base
+*/
+ (function () {
+   'use strict';
+   function getPlatform() {
+     var ua = navigator.userAgent,
+         pf = navigator.platform;
+     if (/Win(16|9[x58]|NT( [1234]| 5\.0| [^0-9]|[^ -]|$))/.test(ua) ||
+       /Windows ([MC]E|9[x58]|3\.1|4\.10|NT( [1234]| 5\.0| [^0-9]|[^ ]|$))/.test(ua) ||
+       /Windows_95/.test(ua)) {
+       /**
+        * Officially unsupported platforms are Windows 95, 98, ME, NT 4.x, 2000
+        * These regular expressions match:
+        *  - Win16
+        *  - Win9x
+        *  - Win95
+        *  - Win98
+        *  - WinNT (not followed by version or followed by version <= 5)
+        *  - Windows ME
+        *  - Windows CE
+        *  - Windows 9x
+        *  - Windows 95
+        *  - Windows 98
+        *  - Windows 3.1
+        *  - Windows 4.10
+        *  - Windows NT (not followed by version or followed by version <= 5)
+        *  - Windows_95
+        */
+       return 'oldwin';
+     }
+     if (ua.indexOf("MSIE 6.0") !== -1 &&
+       ua.indexOf("Windows NT 5.1") !== -1 &&
+       ua.indexOf("SV1") === -1) {
+       // Windows XP SP1
+       return 'oldwin';
+     }
+     if (pf.indexOf("Win32") !== -1 ||
+       pf.indexOf("Win64") !== -1) {
+       return 'windows';
+     }
+     if (/android/i.test(ua)) {
+       return 'android';
+     }
+     if (/armv[6-7]l/.test(pf)) {
+       return 'android';
+     }
+     if (pf.indexOf("Linux") !== -1) {
+       if (pf.indexOf("64") !== -1) {
+         return 'linux64';
+       } else {
+         return 'linux32';
+       }
+     }
+     if (pf.indexOf("MacPPC") !== -1) {
+       return 'oldmac';
+     }
+     if (/Mac OS X 10.[0-5]/.test(ua)) {
+       return 'oldmac';
+     }
+     if (pf.indexOf('iPhone') !== -1 ||
+       pf.indexOf('iPad') !== -1 ||
+       pf.indexOf('iPod') !== -1 ) {
+       return 'ios';
+     }
+     if (ua.indexOf("Mac OS X") !== -1) {
+       return 'osx';
+     }
+     if (ua.indexOf("MSIE 5.2") !== -1) {
+       return 'oldmac';
+     }
+     if (pf.indexOf("Mac") !== -1) {
+       return 'oldmac';
+     }
+     if (navigator.platform === '' &&
+       navigator.userAgent.indexOf("Firefox") !== -1 &&
+       navigator.userAgent.indexOf("Mobile") !== -1) {
+       return 'fxos';
+     }
+
+     return 'other';
+   }
+   (function () {
+     // Immediately set the platform classname on the html-element
+     // to avoid lots of flickering
+     var h = document.documentElement;
+     window.site = {
+       platform : getPlatform()
+     };
+     h.className = window.site.platform;
+   })();
+ })();
diff --git a/core/app/helpers/core_helper.rb b/core/app/helpers/core_helper.rb
index a496144..29a4700 100644
--- a/core/app/helpers/core_helper.rb
+++ b/core/app/helpers/core_helper.rb
@@ -10,4 +10,40 @@ module CoreHelper
     render 'common/home_page_buttons'
   end
 
-end
\ No newline at end of file
+  def available_clients
+    CLIENT_AVAILABILITY
+  end
+
+  def alternative_client_links(os = nil)
+    alternative_clients(os).map do |client|
+      link_to(client.capitalize, client_download_url(client))
+    end
+  end
+
+  def alternative_clients(os = nil)
+    CLIENT_AVAILABILITY - [os]
+  end
+
+  def client_download_url(os = nil)
+    client_download_domain(os) + client_download_path(os)
+  end
+
+  def client_download_domain(os)
+    "https://downloads.leap.se"
+  end
+
+  def client_download_path(os)
+    CLIENT_DOWNLOAD_PATHS[os]  || '/client'
+  end
+
+
+  CLIENT_AVAILABILITY = %w/linux32 linux64 mac windows android/
+  CLIENT_DOWNLOAD_PATHS = {
+    android: '/client/android',
+    linux:   '/client/linux',
+    linux32: '/client/linux/Bitmask-linux32-latest.tar.bz2',
+    linux64: '/client/linux/Bitmask-linux64-latest.tar.bz2',
+    osx:     '/client/osx/Bitmask-OSC-latest.dmg',
+    windows: '/client/windows'
+  }.with_indifferent_access
+end
diff --git a/core/app/views/common/_download_for_os.html.haml b/core/app/views/common/_download_for_os.html.haml
new file mode 100644
index 0000000..b7c88ba
--- /dev/null
+++ b/core/app/views/common/_download_for_os.html.haml
@@ -0,0 +1,16 @@
+- os = download_for_os
+%div{:class => "os-#{os}"}
+  %span.link
+    - btn_class = (os == "other") ? "disabled" : "btn-primary"
+    = link_to client_download_url(os), :class => "btn btn-large #{btn_class}" do
+      .pull-left= huge_icon('mask')
+      = t(:download_client)
+      %br/
+      %small= I18n.t("os.#{os}")
+  %span.info
+    = t(:client_info, :provider => content_tag(:b,APP_CONFIG[:domain])).html_safe
+    %br/
+    - if os == "other"
+      = t(:all_downloads_info, :clients => alternative_client_links(os).to_sentence).html_safe
+    - else
+      = t(:other_downloads_info, :clients => alternative_client_links(os).to_sentence).html_safe
diff --git a/core/app/views/common/_home_page_buttons.html.haml b/core/app/views/common/_home_page_buttons.html.haml
index 7eb4c40..b87c867 100644
--- a/core/app/views/common/_home_page_buttons.html.haml
+++ b/core/app/views/common/_home_page_buttons.html.haml
@@ -1,11 +1,10 @@
 - icon_color = :black
 
-.home-buttons
+.home-buttons.linux64
   .row-fluid.first
     .span3
     .download.span6
-      %span.link= link_to(big_icon('arrow-down', icon_color) + t(:download_client), "https://downloads.leap.se/client", :class => 'btn btn-large')
-      %span.info= t(:download_client_info, :provider => content_tag(:b,APP_CONFIG[:domain])).html_safe
+      = render partial: 'common/download_for_os', collection: available_clients + ['other']
     .span3
   .row-fluid.second
     .login.span4
diff --git a/core/config/locales/en.yml b/core/config/locales/en.yml
index 25b377a..344eee4 100644
--- a/core/config/locales/en.yml
+++ b/core/config/locales/en.yml
@@ -21,10 +21,20 @@ en:
   are_you_sure: "Are you sure? This change cannot be undone."
 
   download_client: "Download Bitmask"
-  download_client_info: "The Bitmask application allows you to use %{provider} services. It is available for Linux, Mac, Windows, and Android."
+  client_info: "The Bitmask application allows you to use %{provider} services."
+  all_downloads_info: "It is available for %{clients}."
+  other_downloads_info: "It is also available for %{clients}."
   login_info: "Log in to change your account settings, create support tickets, and manage payments."
   signup_info: "Sign up for a new user account via this website (it is better if you use the Bitmask application to sign up, but this website works too)."
   welcome: "Welcome to %{provider}."
   get_help: "Get Help"
   help_info: "Can't login? Create a new support ticket anonymously."
   example_email: 'user@domain.org'
+  os:
+    linux32: "Linux (32 bit)"
+    linux64: "Linux (64 bit)"
+    windows: "Windows"
+    android: "Android"
+    mac: "Mac OSX"
+    other: "(not available for your OS.)"
+