KDESupport: Add basic support for KIO

BUG: 391924
FIXED-IN: 3.1.0

CMakeLists.txt

@@ -95,10 +95,12 @@ if (PKG_CONFIG_FOUND)
     endif()
 endif()
 
-# Optional: KWallet
+# Optional: KWallet + KIO
 set(KF5_MIN_VERSION "5.27.0")
 find_package(KF5Wallet ${KF5_MIN_VERSION} CONFIG)
-set_package_properties(KF5Wallet PROPERTIES DESCRIPTION "KWallet password backend plugin" TYPE OPTIONAL)
+set_package_properties(KF5Wallet PROPERTIES DESCRIPTION "KDESupport plugin" TYPE OPTIONAL)
+find_package(KF5KIO ${KF5_MIN_VERSION} CONFIG)
+set_package_properties(KF5KIO PROPERTIES DESCRIPTION "KDESupport plugin" TYPE OPTIONAL)
 
 # Optional: PySide2
 find_package(PySide2 "2.0.0")

src/plugins/CMakeLists.txt

@@ -14,8 +14,8 @@ if (GNOME_KEYRING_FOUND)
     add_subdirectory(GnomeKeyringPasswords)
 endif()
 
-if (KF5Wallet_FOUND)
-    add_subdirectory(KWalletPasswords)
+if (KF5Wallet_FOUND AND KF5KIO_FOUND)
+    add_subdirectory(KDESupport)
 endif()
 
 if (ENABLE_PYTHON_PLUGINS)

src/plugins/KDESupport/CMakeLists.txt

@@ -1,6 +1,7 @@
 set(KDESupport_SRCS
     kdesupportplugin.cpp
     kwalletpasswordbackend.cpp
+    kioschemehandler.cpp
 )
 
 ecm_create_qm_loader(KDESupport_SRCS falkon_kdesupport_qt)
@@ -12,4 +13,4 @@ qt5_add_resources(RSCS ${KDESupport_RSCS})
 
 add_library(KDESupport MODULE ${KDESupport_SRCS} ${RSCS})
 install(TARGETS KDESupport DESTINATION ${FALKON_INSTALL_PLUGINDIR})
-target_link_libraries(KDESupport FalkonPrivate KF5::Wallet)
+target_link_libraries(KDESupport FalkonPrivate KF5::Wallet KF5::KIOCore KF5::KIOWidgets)

src/plugins/KDESupport/kdesupportplugin.cpp

@@ -24,6 +24,12 @@
 #include "autofill.h"
 #include "passwordmanager.h"
 #include "desktopfile.h"
+#include "kioschemehandler.h"
+#include "webpage.h"
+
+#include <KProtocolInfo>
+
+#include <QWebEngineProfile>
 
 KDESupportPlugin::KDESupportPlugin()
     : QObject()
@@ -43,12 +49,30 @@ void KDESupportPlugin::init(InitState state, const QString &settingsPath)
 
     m_backend = new KWalletPasswordBackend;
     mApp->autoFill()->passwordManager()->registerBackend(QSL("KWallet"), m_backend);
+
+    const auto protocols = KProtocolInfo::protocols();
+    for (const QString &protocol : protocols) {
+        if (WebPage::internalSchemes().contains(protocol)) {
+            continue;
+        }
+        KIOSchemeHandler *handler = new KIOSchemeHandler(protocol, this);
+        m_kioSchemeHandlers.append(handler);
+        mApp->webProfile()->installUrlSchemeHandler(protocol.toUtf8(), handler);
+        WebPage::addSupportedScheme(protocol);
+    }
 }
 
 void KDESupportPlugin::unload()
 {
     mApp->autoFill()->passwordManager()->unregisterBackend(m_backend);
     delete m_backend;
+
+    for (KIOSchemeHandler *handler : qAsConst(m_kioSchemeHandlers)) {
+        mApp->webProfile()->removeUrlSchemeHandler(handler);
+        WebPage::removeSupportedScheme(handler->protocol());
+        delete handler;
+    }
+    m_kioSchemeHandlers.clear();
 }
 
 bool KDESupportPlugin::testPlugin()

src/plugins/KDESupport/kdesupportplugin.h

@@ -21,6 +21,7 @@
 #include "plugininterface.h"
 
 class KWalletPasswordBackend;
+class KIOSchemeHandler;
 
 class KDESupportPlugin : public QObject, public PluginInterface
 {
@@ -38,7 +39,7 @@ public:
 
 private:
     KWalletPasswordBackend* m_backend;
-
+    QVector<KIOSchemeHandler*> m_kioSchemeHandlers;
 };
 
 #endif // KDESUPPORTPLUGIN_H

src/plugins/KDESupport/kioschemehandler.cpp

@@ -0,0 +1,63 @@
+/* ============================================================
+* KDESupport - KDE support plugin for Falkon
+* Copyright (C) 2018 David Rosca <nowrep@gmail.com>
+*
+* This program is free software: you can redistribute it and/or modify
+* it under the terms of the GNU General Public License as published by
+* the Free Software Foundation, either version 3 of the License, or
+* (at your option) any later version.
+*
+* This program is distributed in the hope that it will be useful,
+* but WITHOUT ANY WARRANTY; without even the implied warranty of
+* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+* GNU General Public License for more details.
+*
+* You should have received a copy of the GNU General Public License
+* along with this program.  If not, see <http://www.gnu.org/licenses/>.
+* ============================================================ */
+#include "kioschemehandler.h"
+
+#include <QBuffer>
+#include <QPointer>
+#include <QNetworkReply>
+#include <QWebEngineUrlRequestJob>
+
+#include <KIO/AccessManager>
+
+Q_GLOBAL_STATIC_WITH_ARGS(KIO::Integration::AccessManager, s_knam, (nullptr))
+
+KIOSchemeHandler::KIOSchemeHandler(const QString &protocol, QObject *parent)
+    : QWebEngineUrlSchemeHandler(parent)
+    , m_protocol(protocol)
+{
+}
+
+QString KIOSchemeHandler::protocol() const
+{
+    return m_protocol;
+}
+
+void KIOSchemeHandler::requestStarted(QWebEngineUrlRequestJob *job)
+{
+    if (job->requestMethod() != QByteArray("GET")) {
+        qWarning() << "Unsupported method" << job->requestMethod();
+        job->fail(QWebEngineUrlRequestJob::RequestFailed);
+        return;
+    }
+
+    QPointer<QWebEngineUrlRequestJob> jobPtr = job;
+    QNetworkReply *reply = s_knam()->get(QNetworkRequest(job->requestUrl()));
+    connect(reply, &QNetworkReply::finished, this, [=]() {
+        if (!jobPtr) {
+            reply->deleteLater();
+            return;
+        }
+        if (reply->error() != QNetworkReply::NoError) {
+            reply->deleteLater();
+            qWarning() << "Error:" << reply->errorString();
+            job->fail(QWebEngineUrlRequestJob::RequestFailed);
+        } else {
+            job->reply(reply->header(QNetworkRequest::ContentTypeHeader).toByteArray(), reply);
+        }
+    });
+}

src/plugins/KDESupport/kioschemehandler.h

@@ -0,0 +1,33 @@
+/* ============================================================
+* KDESupport - KDE support plugin for Falkon
+* Copyright (C) 2018 David Rosca <nowrep@gmail.com>
+*
+* This program is free software: you can redistribute it and/or modify
+* it under the terms of the GNU General Public License as published by
+* the Free Software Foundation, either version 3 of the License, or
+* (at your option) any later version.
+*
+* This program is distributed in the hope that it will be useful,
+* but WITHOUT ANY WARRANTY; without even the implied warranty of
+* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+* GNU General Public License for more details.
+*
+* You should have received a copy of the GNU General Public License
+* along with this program.  If not, see <http://www.gnu.org/licenses/>.
+* ============================================================ */
+#pragma once
+
+#include <QWebEngineUrlSchemeHandler>
+
+class KIOSchemeHandler : public QWebEngineUrlSchemeHandler
+{
+public:
+    explicit KIOSchemeHandler(const QString &protocol, QObject *parent = nullptr);
+
+    QString protocol() const;
+
+    void requestStarted(QWebEngineUrlRequestJob *job) override;
+
+private:
+    QString m_protocol;
+};

src/plugins/KDESupport/metadata.desktop

@@ -1,6 +1,6 @@
 [Desktop Entry]
 Name=KDE Support
-Comment=Provides support for storing passwords in KWallet
+Comment=Provides support for KIO and storing passwords in KWallet
 
 Icon=:kdesupport/data/icon.svg
 Type=Service