From 90890e7d27c544e3557bed2f6624614141db0fc4 Mon Sep 17 00:00:00 2001
From: Fabian Vogt <fabian@ritter-vogt.de>
Date: Sat, 29 Sep 2018 15:34:43 +0200
Subject: [PATCH] Reintroduce the username field reading with webkit-options.d

Use WebChannel to spy on the input fields.
Use the old UserAgent to make sure the selectors match.
---
 src/browser-request.cpp | 11 +++++++++++
 src/qml/WebView.qml     | 36 ++++++++++++++++++++++++++++++++++++
 2 files changed, 47 insertions(+)

diff --git a/src/browser-request.cpp b/src/browser-request.cpp
index 1895d59..e58f302 100644
--- a/src/browser-request.cpp
+++ b/src/browser-request.cpp
@@ -31,6 +31,7 @@
 #include <QStandardPaths>
 #include <QTimer>
 #include <SignOn/uisessiondata_priv.h>
+#include <QSettings>
 
 using namespace SignOnUi;
 using namespace SignOnUi::QQuick;
@@ -43,8 +44,10 @@ class BrowserRequestPrivate: public QObject
     Q_DECLARE_PUBLIC(BrowserRequest)
     Q_PROPERTY(QUrl pageComponentUrl READ pageComponentUrl CONSTANT)
     Q_PROPERTY(QUrl currentUrl READ currentUrl WRITE setCurrentUrl)
+    Q_PROPERTY(QString username MEMBER m_username)
     Q_PROPERTY(QUrl startUrl READ startUrl CONSTANT)
     Q_PROPERTY(QUrl finalUrl READ finalUrl CONSTANT)
+    Q_PROPERTY(QString usernameSelector READ usernameSelector CONSTANT)
 
 public:
     BrowserRequestPrivate(BrowserRequest *request);
@@ -58,6 +61,7 @@ public:
     QUrl startUrl() const { return m_startUrl; }
     QUrl finalUrl() const { return m_finalUrl; }
     QUrl responseUrl() const { return m_responseUrl; }
+    QString usernameSelector() const { return m_settings->value("UsernameField").toString(); }
 
 public Q_SLOTS:
     void cancel();
@@ -77,6 +81,8 @@ private:
     QUrl m_startUrl;
     QUrl m_finalUrl;
     QUrl m_responseUrl;
+    QString m_username;
+    QSettings *m_settings;
     QTimer m_failTimer;
     mutable BrowserRequest *q_ptr;
 };
@@ -116,6 +122,9 @@ void BrowserRequestPrivate::start()
 
     m_finalUrl = params.value(SSOUI_KEY_FINALURL).toString();
     m_startUrl = params.value(SSOUI_KEY_OPENURL).toString();
+
+    m_settings = new QSettings("signon-ui/webkit-options.d/" + m_startUrl.host(), QString(), this);
+
     buildDialog(params);
 
     QObject::connect(m_dialog, SIGNAL(finished(int)),
@@ -231,6 +240,8 @@ void BrowserRequestPrivate::onFinished()
     QVariantMap reply;
     QUrl url = m_responseUrl.isEmpty() ? m_currentUrl : m_responseUrl;
     reply[SSOUI_KEY_URLRESPONSE] = url.toString();
+    if (!m_username.isEmpty())
+        reply[SSOUI_KEY_USERNAME] = m_username;
 
     m_dialog->close();
 
diff --git a/src/qml/WebView.qml b/src/qml/WebView.qml
index 33462b8..3af0239 100644
--- a/src/qml/WebView.qml
+++ b/src/qml/WebView.qml
@@ -1,4 +1,5 @@
 import QtQuick 2.0
+import QtWebChannel 1.0
 import QtWebEngine 1.1
 
 WebEngineView {
@@ -25,8 +26,43 @@ WebEngineView {
     profile: WebEngineProfile {
         cachePath: rootDir
         persistentStoragePath: rootDir
+        // For compatibility with the webkit-options.d values
+        httpUserAgent: "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.21 (KHTML, like Gecko) Safari/537.21"
     }
 
+    QtObject {
+        id: commProxy
+        WebChannel.id: "comm"
+        property string username: ""
+        property string selector: signonRequest.usernameSelector
+        onUsernameChanged: signonRequest.username = username
+    }
+
+    WebChannel {
+        id: chan
+        registeredObjects: [commProxy]
+    }
+    webChannel: chan
+
+    WebEngineScript {
+        id: qwebchannel
+        injectionPoint: WebEngineScript.DocumentCreation
+        sourceUrl: "qrc:/qtwebchannel/qwebchannel.js"
+        worldId: WebEngineScript.MainWorld
+    }
+
+    WebEngineScript {
+        id: commScript
+        injectionPoint: WebEngineScript.DocumentReady
+        sourceCode: "new QWebChannel(window.qt.webChannelTransport, function(channel) {" +
+                    "    var elem = document.querySelector(channel.objects.comm.selector);" +
+                    "    elem.addEventListener('keyup', function() { channel.objects.comm.username = elem.value; });" +
+                    "});"
+        worldId: WebEngineScript.MainWorld
+    }
+
+    userScripts: [qwebchannel, commScript]
+
     ProgressBar {
         anchors.top: parent.top
         anchors.left: parent.left
-- 
2.18.0