first commit

cefhook.cpp

@@ -0,0 +1,52 @@
+#include <Windows.h>
+#include "pch.h"
+#include "detours.h"
+#include <string>
+
+
+
+
+typedef cef_v8context_t* (*get_context)();
+
+PVOID v8getcontext_source = NULL;
+
+std::string script;
+
+cef_v8context_t* v8getcontext_hooked() {
+	cef_v8context_t* context = ((get_context)v8getcontext_source)();
+	cef_browser_t* browser = context->get_browser(context);
+	_cef_frame_t* frame = browser->get_main_frame(browser);
+	CefString exec_script = "if(!window.__easyCefInject__){window.__easyCefInject__=true;" + script + "}";
+	CefString url = "libeasycef/inject.js";
+	frame->execute_java_script(frame, exec_script.GetStruct(), url.GetStruct(), 0);
+
+	CefRefPtr<CefV8Context> context = CefV8Context::GetCurrentContext();
+
+
+	//CefRefPtr<CefBrowser> browser = context->GetBrowser();
+	//CefString jsCode = "alert('Hello, World!');";
+	//browser->GetMainFrame()->ExecuteJavaScript(jsCode, browser->GetMainFrame()->GetURL(), 0);
+	return context;
+}
+
+void StartHook()
+{
+	long err;
+	DetourRestoreAfterWith();
+	DetourTransactionBegin();
+	DetourUpdateThread(GetCurrentThread());
+	v8getcontext_source = DetourFindFunction("libcef.dll", "cef_v8context_get_current_context");
+	if (v8getcontext_source) {
+		DetourAttach(&v8getcontext_source, v8getcontext_hooked);
+	}
+	LONG err = DetourTransactionCommit();
+
+}
+
+void EndHook()
+{
+	DetourTransactionBegin();
+	DetourUpdateThread(GetCurrentThread());
+	DetourDetach(&v8getcontext_source, v8getcontext_hooked);
+	DetourTransactionCommit();
+}