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src/BrowserExtension.cpp

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+#include "BrowserExtension.hpp"
+
+#include "singletons/NativeMessaging.hpp"
+
+#include <QStringList>
+#include <QTimer>
+#include <fstream>
+#include <iostream>
+#include <memory>
+
+#ifdef Q_OS_WIN
+#include <fcntl.h>
+#include <io.h>
+#include <stdio.h>
+#endif
+
+namespace chatterino {
+
+namespace {
+void initFileMode()
+{
+#ifdef Q_OS_WIN
+    _setmode(_fileno(stdin), _O_BINARY);
+    _setmode(_fileno(stdout), _O_BINARY);
+#endif
+}
+
+void runLoop(NativeMessagingClient &client)
+{
+    while (true) {
+        char size_c[4];
+        std::cin.read(size_c, 4);
+
+        if (std::cin.eof()) {
+            break;
+        }
+
+        uint32_t size = *reinterpret_cast<uint32_t *>(size_c);
+
+#if 0
+    bool bigEndian = isBigEndian();
+        // To avoid breaking strict-aliasing rules and potentially inducing undefined behaviour, the following code can be run instead
+        uint32_t size = 0;
+        if (bigEndian) {
+            size = size_c[3] | static_cast<uint32_t>(size_c[2]) << 8 |
+                   static_cast<uint32_t>(size_c[1]) << 16 | static_cast<uint32_t>(size_c[0]) << 24;
+        } else {
+            size = size_c[0] | static_cast<uint32_t>(size_c[1]) << 8 |
+                   static_cast<uint32_t>(size_c[2]) << 16 | static_cast<uint32_t>(size_c[3]) << 24;
+        }
+#endif
+
+        std::unique_ptr<char[]> b(new char[size + 1]);
+        std::cin.read(b.get(), size);
+        *(b.get() + size) = '\0';
+
+        client.sendMessage(QByteArray::fromRawData(b.get(), static_cast<int32_t>(size)));
+    }
+}
+}  // namespace
+
+bool shouldRunBrowserExtensionHost(const QStringList &args)
+{
+    return args.size() > 0 &&
+           (args[0].startsWith("chrome-extension://") || args[0].endsWith(".json"));
+}
+
+void runBrowserExtensionHost()
+{
+    initFileMode();
+
+    std::atomic<bool> ping(false);
+
+    QTimer timer;
+    QObject::connect(&timer, &QTimer::timeout, [&ping] {
+        if (!ping.exchange(false)) {
+            _Exit(0);
+        }
+    });
+    timer.setInterval(11000);
+    timer.start();
+
+    NativeMessagingClient client;
+
+    runLoop(client);
+}
+
+}  // namespace chatterino