From 811544620f903b137aeb7660183ca9d6bb0d7590 Mon Sep 17 00:00:00 2001
From: Brian Potchik <brian@vector35.com>
Date: Wed, 20 Jun 2018 16:03:27 -0400
Subject: Add DownloadProvider Support.

---
 downloadprovider.cpp | 135 +++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 135 insertions(+)
 create mode 100644 downloadprovider.cpp

(limited to 'downloadprovider.cpp')

diff --git a/downloadprovider.cpp b/downloadprovider.cpp
new file mode 100644
index 00000000..0e3483df
--- /dev/null
+++ b/downloadprovider.cpp
@@ -0,0 +1,135 @@
+#include "binaryninjaapi.h"
+
+using namespace BinaryNinja;
+using namespace std;
+
+
+DownloadInstance::DownloadInstance(DownloadProvider* provider)
+{
+	BNDownloadInstanceCallbacks cb;
+	cb.context = this;
+	cb.destroyInstance = DestroyInstanceCallback;
+	cb.performRequest = PerformRequestCallback;
+	m_object = BNInitDownloadInstance(provider->GetObject(), &cb);
+}
+
+
+DownloadInstance::DownloadInstance(BNDownloadInstance* instance)
+{
+	m_object = instance;
+}
+
+
+void DownloadInstance::DestroyInstanceCallback(void* ctxt)
+{
+	DownloadInstance* instance = (DownloadInstance*)ctxt;
+	instance->DestroyInstance();
+}
+
+
+int DownloadInstance::PerformRequestCallback(void* ctxt, const char* url)
+{
+	DownloadInstance* instance = (DownloadInstance*)ctxt;
+	return instance->PerformRequest(url);
+}
+
+
+string DownloadInstance::GetError() const
+{
+	char* str = BNGetErrorForDownloadInstance(m_object);
+	string result = str;
+	BNFreeString(str);
+	return result;
+}
+
+
+void DownloadInstance::SetError(const string& error)
+{
+	BNSetErrorForDownloadInstance(m_object, error.c_str());
+}
+
+
+int DownloadInstance::PerformRequest(const string& url, BNDownloadInstanceOutputCallbacks* callbacks)
+{
+	return BNPerformDownloadRequest(m_object, url.c_str(), callbacks);
+}
+
+
+void DownloadInstance::DestroyInstance()
+{
+}
+
+
+CoreDownloadInstance::CoreDownloadInstance(BNDownloadInstance* instance): DownloadInstance(instance)
+{
+}
+
+
+int CoreDownloadInstance::PerformRequest(const std::string& url)
+{
+	(void)url;
+	return -1;
+}
+
+
+DownloadProvider::DownloadProvider(const string& name): m_nameForRegister(name)
+{
+}
+
+
+DownloadProvider::DownloadProvider(BNDownloadProvider* provider)
+{
+	m_object = provider;
+}
+
+
+BNDownloadInstance* DownloadProvider::CreateInstanceCallback(void* ctxt)
+{
+	DownloadProvider* provider = (DownloadProvider*)ctxt;
+	Ref<DownloadInstance> instance = provider->CreateNewInstance();
+	return instance ? BNNewDownloadInstanceReference(instance->GetObject()) : nullptr;
+}
+
+
+vector<Ref<DownloadProvider>> DownloadProvider::GetList()
+{
+	size_t count;
+	BNDownloadProvider** list = BNGetDownloadProviderList(&count);
+	vector<Ref<DownloadProvider>> result;
+	for (size_t i = 0; i < count; i++)
+		result.push_back(new CoreDownloadProvider(list[i]));
+	BNFreeDownloadProviderList(list);
+	return result;
+}
+
+
+Ref<DownloadProvider> DownloadProvider::GetByName(const string& name)
+{
+	BNDownloadProvider* result = BNGetDownloadProviderByName(name.c_str());
+	if (!result)
+		return nullptr;
+	return new CoreDownloadProvider(result);
+}
+
+
+void DownloadProvider::Register(DownloadProvider* provider)
+{
+	BNDownloadProviderCallbacks cb;
+	cb.context = provider;
+	cb.createInstance = CreateInstanceCallback;
+	provider->m_object = BNRegisterDownloadProvider(provider->m_nameForRegister.c_str(), &cb);
+}
+
+
+CoreDownloadProvider::CoreDownloadProvider(BNDownloadProvider* provider): DownloadProvider(provider)
+{
+}
+
+
+Ref<DownloadInstance> CoreDownloadProvider::CreateNewInstance()
+{
+	BNDownloadInstance* result = BNCreateDownloadProviderInstance(m_object);
+	if (!result)
+		return nullptr;
+	return new CoreDownloadInstance(result);
+}
-- 
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