Introduce QHttpServer

QHttpServer provides a simplified interface to QAbstractHttpServer and
QHttpServerRouter.

Change-Id: I884204aa8140bbab4c0d6a8ab4c798e0b2470e29
Reviewed-by: Paul Wicking <paul.wicking@qt.io>
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>

4 files changed, 138 insertions, 0 deletions

diff --git a/examples/examples.pro b/examples/examples.pro
new file mode 100644
index 0000000..68d9ed3
--- /dev/null
+++ b/examples/examples.pro
@@ -0,0 +1,4 @@
+TEMPLATE = subdirs
+
+SUBDIRS = \
+    httpserver
diff --git a/examples/httpserver/httpserver.pro b/examples/httpserver/httpserver.pro
new file mode 100644
index 0000000..b9fe1d4
--- /dev/null
+++ b/examples/httpserver/httpserver.pro
@@ -0,0 +1,5 @@
+TEMPLATE = subdirs
+
+SUBDIRS = \
+    simple
+
diff --git a/examples/httpserver/simple/main.cpp b/examples/httpserver/simple/main.cpp
new file mode 100644
index 0000000..410d6fe
--- /dev/null
+++ b/examples/httpserver/simple/main.cpp
@@ -0,0 +1,118 @@
+/****************************************************************************
+**
+** Copyright (C) 2018 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the QtHttpServer module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:BSD$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** BSD License Usage
+** Alternatively, you may use this file under the terms of the BSD license
+** as follows:
+**
+** "Redistribution and use in source and binary forms, with or without
+** modification, are permitted provided that the following conditions are
+** met:
+**   * Redistributions of source code must retain the above copyright
+**     notice, this list of conditions and the following disclaimer.
+**   * Redistributions in binary form must reproduce the above copyright
+**     notice, this list of conditions and the following disclaimer in
+**     the documentation and/or other materials provided with the
+**     distribution.
+**   * Neither the name of The Qt Company Ltd nor the names of its
+**     contributors may be used to endorse or promote products derived
+**     from this software without specific prior written permission.
+**
+**
+** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QtCore>
+#include <QtHttpServer>
+
+static inline QString host(const QHttpServerRequest &request)
+{
+    return request.headers()[QStringLiteral("Host")].toString();
+}
+
+int main(int argc, char *argv[])
+{
+    QCoreApplication app(argc, argv);
+
+    QHttpServer httpServer;
+    httpServer.route("/", []() {
+        return "Hello world";
+    });
+
+    httpServer.route("/query", [] (const QHttpServerRequest &request) {
+        return QString("%1/query/").arg(host(request));
+    });
+
+    httpServer.route("/query/", [] (qint32 id, const QHttpServerRequest &request) {
+        return QString("%1/query/%2").arg(host(request)).arg(id);
+    });
+
+    httpServer.route("/query/<arg>/log", [] (qint32 id, const QHttpServerRequest &request) {
+        return QString("%1/query/%2/log").arg(host(request)).arg(id);
+    });
+
+    httpServer.route("/query/<arg>/log/", [] (qint32 id, float threshold,
+                                              const QHttpServerRequest &request) {
+        return QString("%1/query/%2/log/%3").arg(host(request)).arg(id).arg(threshold);
+    });
+
+    httpServer.route("/user/", [] (const qint32 id) {
+        return QString("User %1").arg(id);
+    });
+
+    httpServer.route("/user/<arg>/detail", [] (const qint32 id) {
+        return QString("User %1 detail").arg(id);
+    });
+
+    httpServer.route("/user/<arg>/detail/", [] (const qint32 id, const qint32 year) {
+        return QString("User %1 detail year - %2").arg(id).arg(year);
+    });
+
+    httpServer.route("/json/", [] {
+        return QJsonObject{
+            {
+                {"key1", "1"},
+                {"key2", "2"},
+                {"key3", "3"}
+            }
+        };
+    });
+
+    const auto port = httpServer.listen(QHostAddress::Any);
+    if (port == -1) {
+        qDebug() << QCoreApplication::translate(
+                "QHttpServerExample", "Could not run on http://127.0.0.1:%1/").arg(port);
+        return 0;
+    }
+
+    qDebug() << QCoreApplication::translate(
+            "QHttpServerExample", "Running on http://127.0.0.1:%1/ (Press CTRL+C to quit)").arg(port);
+
+    return app.exec();
+}
diff --git a/examples/httpserver/simple/simple.pro b/examples/httpserver/simple/simple.pro
new file mode 100644
index 0000000..d1f0889
--- /dev/null
+++ b/examples/httpserver/simple/simple.pro
@@ -0,0 +1,11 @@
+requires(qtHaveModule(httpserver))
+
+TEMPLATE = app
+
+QT += httpserver
+
+SOURCES += \
+    main.cpp
+
+target.path = $$[QT_INSTALL_EXAMPLES]/httpserver/simple
+INSTALLS += target