Merge pull request #1587 from atom/agent-as-attribute

Allow User Agent on WebView to be set as an attribute

atom/browser/api/atom_api_web_contents.cc

@@ -418,6 +418,10 @@ void WebContents::LoadURL(const GURL& url, const mate::Dictionary& options) {
     params.referrer = content::Referrer(http_referrer.GetAsReferrer(),
                                         blink::WebReferrerPolicyDefault);
 
+  std::string user_agent;
+  if (options.Get("useragent", &user_agent))
+    SetUserAgent(user_agent);
+
   params.transition_type = ui::PAGE_TRANSITION_TYPED;
   params.should_clear_history_list = true;
   params.override_user_agent = content::NavigationController::UA_OVERRIDE_TRUE;

atom/browser/lib/guest-view-manager.coffee

@@ -57,11 +57,13 @@ createGuest = (embedder, params) ->
     min = width: params.minwidth, height: params.minheight
     max = width: params.maxwidth, height: params.maxheight
     @setAutoSize params.autosize, min, max
+
     if params.src
-      if params.httpreferrer
-        @loadUrl params.src, {httpreferrer: params.httpreferrer}
-      else
-        @loadUrl params.src
+      opts = {}
+      opts.httpreferrer = params.httpreferrer if params.httpreferrer
+      opts.useragent = params.useragent if params.useragent
+      @loadUrl params.src, opts
+
     if params.allowtransparency?
       @setAllowTransparency params.allowtransparency
 

atom/renderer/lib/web-view/web-view-attributes.coffee

@@ -158,15 +158,26 @@ class SrcAttribute extends WebViewAttribute
       return
 
     # Navigate to |this.src|.
+    opts = {}
     httpreferrer = @webViewImpl.attributes[webViewConstants.ATTRIBUTE_HTTPREFERRER].getValue()
-    urlOptions = if httpreferrer then {httpreferrer} else {}
-    remote.getGuestWebContents(@webViewImpl.guestInstanceId).loadUrl @getValue(), urlOptions
+    if httpreferrer then opts.httpreferrer = httpreferrer
+
+    useragent = @webViewImpl.attributes[webViewConstants.ATTRIBUTE_USERAGENT].getValue()
+    if useragent then opts.useragent = useragent
+
+    guestContents = remote.getGuestWebContents(@webViewImpl.guestInstanceId)
+    guestContents.loadUrl @getValue(), opts
 
 # Attribute specifies HTTP referrer.
 class HttpReferrerAttribute extends WebViewAttribute
   constructor: (webViewImpl) ->
     super webViewConstants.ATTRIBUTE_HTTPREFERRER, webViewImpl
 
+# Attribute specifies user agent
+class UserAgentAttribute extends WebViewAttribute
+  constructor: (webViewImpl) ->
+    super webViewConstants.ATTRIBUTE_USERAGENT, webViewImpl
+
 # Attribute that set preload script.
 class PreloadAttribute extends WebViewAttribute
   constructor: (webViewImpl) ->
@@ -190,6 +201,7 @@ WebViewImpl::setupWebViewAttributes = ->
   @attributes[webViewConstants.ATTRIBUTE_PARTITION] = new PartitionAttribute(this)
   @attributes[webViewConstants.ATTRIBUTE_SRC] = new SrcAttribute(this)
   @attributes[webViewConstants.ATTRIBUTE_HTTPREFERRER] = new HttpReferrerAttribute(this)
+  @attributes[webViewConstants.ATTRIBUTE_USERAGENT] = new UserAgentAttribute(this)
   @attributes[webViewConstants.ATTRIBUTE_NODEINTEGRATION] = new BooleanAttribute(webViewConstants.ATTRIBUTE_NODEINTEGRATION, this)
   @attributes[webViewConstants.ATTRIBUTE_PLUGINS] = new BooleanAttribute(webViewConstants.ATTRIBUTE_PLUGINS, this)
   @attributes[webViewConstants.ATTRIBUTE_DISABLEWEBSECURITY] = new BooleanAttribute(webViewConstants.ATTRIBUTE_DISABLEWEBSECURITY, this)

atom/renderer/lib/web-view/web-view-constants.coffee

@@ -14,6 +14,7 @@ module.exports =
   ATTRIBUTE_PLUGINS: 'plugins'
   ATTRIBUTE_DISABLEWEBSECURITY: 'disablewebsecurity'
   ATTRIBUTE_PRELOAD: 'preload'
+  ATTRIBUTE_USERAGENT: 'useragent'
 
   # Internal attribute.
   ATTRIBUTE_INTERNALINSTANCEID: 'internalinstanceid'

docs/api/web-view-tag.md

@@ -112,6 +112,14 @@ after this script has done execution.
 
 Sets the referrer URL for the guest page.
 
+### useragent
+
+```html
+<webview src="https://www.github.com/" useragent="Mozilla/5.0 (Windows NT 6.1; WOW64; Trident/7.0; AS; rv:11.0) like Gecko"></webview>
+```
+
+Sets the user agent for the guest page before the page is navigated to. Once the page is loaded, use the `setUserAgent` method to change the user agent.
+
 ### disablewebsecurity
 
 ```html

spec/fixtures/pages/useragent.html

@@ -0,0 +1,7 @@
+<html>
+<body>
+<script type="text/javascript" charset="utf-8">
+  console.log(navigator.userAgent);
+</script>
+</body>
+</html>

spec/webview-spec.coffee

@@ -99,6 +99,18 @@ describe '<webview> tag', ->
       webview.src = "file://#{fixtures}/pages/referrer.html"
       document.body.appendChild webview
 
+  describe 'useragent attribute', ->
+    it 'sets the user agent', (done) ->
+      referrer = 'Mozilla/5.0 (Windows NT 6.1; WOW64; Trident/7.0; AS; rv:11.0) like Gecko'
+      listener = (e) ->
+        assert.equal e.message, referrer
+        webview.removeEventListener 'console-message', listener
+        done()
+      webview.addEventListener 'console-message', listener
+      webview.setAttribute 'useragent', referrer
+      webview.src = "file://#{fixtures}/pages/useragent.html"
+      document.body.appendChild webview
+
   describe 'disablewebsecurity attribute', ->
     it 'does not disable web security when not set', (done) ->
       src = "