Add option to set captcha language.

package.json

@@ -25,7 +25,7 @@
       "*://www.4chan.org/feedback",
       "https://www.google.com/recaptcha/api2/anchor?k=6Ldp2bsSAAAAAAJ5uyx_lx34lJeEpTLVkP5k04qc*",
       "https://www.google.com/recaptcha/api2/frame?*&k=6Ldp2bsSAAAAAAJ5uyx_lx34lJeEpTLVkP5k04qc*",
-      "*://www.google.com/recaptcha/api/fallback?k=6Ldp2bsSAAAAAAJ5uyx_lx34lJeEpTLVkP5k04qc"
+      "*://www.google.com/recaptcha/api/fallback?k=6Ldp2bsSAAAAAAJ5uyx_lx34lJeEpTLVkP5k04qc*"
     ],
     "suffix": {
       "stable": "",

src/General/Config.coffee

@@ -741,6 +741,8 @@ Config =
       #options:"sage";boards:jp;always
     """
 
+  captchaLanguage: ''
+
   time: '%m/%d/%y(%a)%H:%M:%S'
 
   backlink: '>>%id'

src/General/Main.coffee

@@ -10,6 +10,10 @@ Main =
 
     if location.hostname is 'www.4chan.org'
       $.onExists d.documentElement, 'body', false, -> $.addStyle Main.cssWWW
+      Conf = {'captchaLanguage': Config.captchaLanguage}
+      $.get Conf, (items) ->
+        $.extend Conf, items
+        Captcha.language.fixPage()
       return
 
     g.threads = new SimpleDict()
@@ -310,6 +314,7 @@ Main =
 
   features: [
     ['Polyfill',                  Polyfill]
+    ['Captcha Language',          Captcha.language]
     ['Redirect',                  Redirect]
     ['Header',                    Header]
     ['Catalog Links',             CatalogLinks]

src/General/Settings.coffee

@@ -315,7 +315,7 @@ Settings =
 
     items = {}
     inputs = {}
-    for name in ['boardnav', 'time', 'backlink', 'fileInfo', 'favicon', 'usercss', 'customCooldown']
+    for name in ['captchaLanguage', 'boardnav', 'time', 'backlink', 'fileInfo', 'favicon', 'usercss', 'customCooldown']
       input = $ "[name='#{name}']", section
       items[name]  = Conf[name]
       inputs[name] = input
@@ -324,9 +324,9 @@ Settings =
       else if name is 'favicon'
         $.on input, 'change', $.cb.value
         $.on input, 'change', Settings[name]
-       else
+      else
         $.on input, 'input', $.cb.value
-        $.on input, 'input', Settings[name]
+        $.on input, 'input', Settings[name] if name of Settings
 
     # Quick Reply Personas
     ta = $ '.personafield', section
@@ -339,8 +339,8 @@ Settings =
       for key, val of items
         input = inputs[key]
         input.value = val
-        continue if key in ['usercss', 'customCooldown']
-        Settings[key].call input
+        if key of Settings and key isnt 'usercss'
+          Settings[key].call input
       return
 
     interval  = $ 'input[name="Interval"]',   section

src/General/html/Settings/Advanced.html

@@ -12,6 +12,12 @@
   </table>
 </fieldset>
 
+<fieldset>
+  <legend>Captcha Language</legend>
+  <div>Choose from <a href="https://developers.google.com/recaptcha/docs/language">list of language codes</a>. Leave blank to autoselect.</div>
+  <div><input name="captchaLanguage" class="field" spellcheck="false"></div>
+</fieldset>
+
 <fieldset>
   <legend>Custom Board Navigation</legend>
   <div><textarea name="boardnav" class="field" spellcheck="false"></textarea></div>

src/Miscellaneous/Report.coffee

@@ -3,6 +3,7 @@ Report =
 
   init: ->
     return unless /\bmode=report\b/.test(location.search) and match = location.search.match /\bno=(\d+)/
+    Captcha.language.fixPage()
     @postID = +match[1]
     $.ready @ready
 

src/Posting/Captcha.language.coffee

@@ -0,0 +1,17 @@
+Captcha.language =
+  init: ->
+    return unless Conf['captchaLanguage'].trim() and d.cookie.indexOf('pass_enabled=1') < 0 and !Conf['Hide Original Post Form']
+    $.onExists doc, '#captchaFormPart', true, (node) ->
+      $.onExists node, 'iframe', true, Captcha.language.fixIframe
+
+  fixPage: ->
+    return unless Conf['captchaLanguage'].trim() and d.cookie.indexOf('pass_enabled=1') < 0
+    $.onExists doc, 'iframe', true, Captcha.language.fixIframe
+
+  fixIframe: (el) ->
+    return unless lang = Conf['captchaLanguage'].trim()
+    src = if /[?&]hl=/.test el.src
+      el.src.replace(/([?&]hl=)[^&]*/, '$1' + encodeURIComponent lang)
+    else
+      el.src + "&hl=#{encodeURIComponent lang}"
+    el.src = src unless el.src is src

src/Posting/Captcha.v2.coffee

@@ -1,6 +1,5 @@
 Captcha.v2 =
   lifetime: 2 * $.MINUTE
-  noscriptURL: '//www.google.com/recaptcha/api/fallback?k=<%= meta.recaptchaKey %>'
 
   init: ->
     return if d.cookie.indexOf('pass_enabled=1') >= 0
@@ -34,6 +33,12 @@ Captcha.v2 =
   timeouts: {}
   postsCount: 0
 
+  noscriptURL: ->
+    url = '//www.google.com/recaptcha/api/fallback?k=<%= meta.recaptchaKey %>'
+    if lang = Conf['captchaLanguage'].trim()
+      url += "&hl=#{encodeURIComponent lang}"
+    url
+
   needed: ->
     captchaCount = @captchas.length
     captchaCount++ if QR.req
@@ -83,7 +88,7 @@ Captcha.v2 =
   setupNoscript: ->
     iframe = $.el 'iframe',
       id: 'qr-captcha-iframe'
-      src: @noscriptURL
+      src: @noscriptURL()
     $.add @nodes.container, iframe
     @conn.target = iframe.contentWindow
 
@@ -120,7 +125,7 @@ Captcha.v2 =
     return
 
   setupIFrame: (iframe) ->
-    @setupTime = Date.now()
+    Captcha.language.fixIframe iframe
     $.addClass QR.nodes.el, 'captcha-open'
     if QR.nodes.el.getBoundingClientRect().bottom > doc.clientHeight
       QR.nodes.el.style.top    = null
@@ -202,7 +207,7 @@ Captcha.v2 =
 
   reload: ->
     if @noscript
-      $('iframe', @nodes.container).src = @noscriptURL
+      $('iframe', @nodes.container).src = @noscriptURL()
     else
       $.globalEval '''
         (function() {