Merge pull request #2539 from DarkLordZach/bcat

bcat: Implement BCAT service and connect to yuzu Boxcat server

4 files changed, 99 insertions, 0 deletions

diff --git a/src/core/file_sys/bis_factory.cpp b/src/core/file_sys/bis_factory.cpp
index 8f758d6d9..0af44f340 100644
--- a/src/core/file_sys/bis_factory.cpp
+++ b/src/core/file_sys/bis_factory.cpp
@@ -136,4 +136,9 @@ u64 BISFactory::GetFullNANDTotalSpace() const {
     return static_cast<u64>(Settings::values.nand_total_size);
 }
 
+VirtualDir BISFactory::GetBCATDirectory(u64 title_id) const {
+    return GetOrCreateDirectoryRelative(nand_root,
+                                        fmt::format("/system/save/bcat/{:016X}", title_id));
+}
+
 } // namespace FileSys
diff --git a/src/core/file_sys/bis_factory.h b/src/core/file_sys/bis_factory.h
index bdfe728c9..8f0451c98 100644
--- a/src/core/file_sys/bis_factory.h
+++ b/src/core/file_sys/bis_factory.h
@@ -61,6 +61,8 @@ public:
     u64 GetUserNANDTotalSpace() const;
     u64 GetFullNANDTotalSpace() const;
 
+    VirtualDir GetBCATDirectory(u64 title_id) const;
+
 private:
     VirtualDir nand_root;
     VirtualDir load_root;
diff --git a/src/core/file_sys/vfs_libzip.cpp b/src/core/file_sys/vfs_libzip.cpp
new file mode 100644
index 000000000..8bdaa7e4a
--- /dev/null
+++ b/src/core/file_sys/vfs_libzip.cpp
@@ -0,0 +1,79 @@
+// Copyright 2019 yuzu emulator team
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#include <string>
+#include <zip.h>
+#include "common/logging/backend.h"
+#include "core/file_sys/vfs.h"
+#include "core/file_sys/vfs_libzip.h"
+#include "core/file_sys/vfs_vector.h"
+
+namespace FileSys {
+
+VirtualDir ExtractZIP(VirtualFile file) {
+    zip_error_t error{};
+
+    const auto data = file->ReadAllBytes();
+    std::unique_ptr<zip_source_t, decltype(&zip_source_close)> src{
+        zip_source_buffer_create(data.data(), data.size(), 0, &error), zip_source_close};
+    if (src == nullptr)
+        return nullptr;
+
+    std::unique_ptr<zip_t, decltype(&zip_close)> zip{zip_open_from_source(src.get(), 0, &error),
+                                                     zip_close};
+    if (zip == nullptr)
+        return nullptr;
+
+    std::shared_ptr<VectorVfsDirectory> out = std::make_shared<VectorVfsDirectory>();
+
+    const auto num_entries = zip_get_num_entries(zip.get(), 0);
+
+    zip_stat_t stat{};
+    zip_stat_init(&stat);
+
+    for (std::size_t i = 0; i < num_entries; ++i) {
+        const auto stat_res = zip_stat_index(zip.get(), i, 0, &stat);
+        if (stat_res == -1)
+            return nullptr;
+
+        const std::string name(stat.name);
+        if (name.empty())
+            continue;
+
+        if (name.back() != '/') {
+            std::unique_ptr<zip_file_t, decltype(&zip_fclose)> file{
+                zip_fopen_index(zip.get(), i, 0), zip_fclose};
+
+            std::vector<u8> buf(stat.size);
+            if (zip_fread(file.get(), buf.data(), buf.size()) != buf.size())
+                return nullptr;
+
+            const auto parts = FileUtil::SplitPathComponents(stat.name);
+            const auto new_file = std::make_shared<VectorVfsFile>(buf, parts.back());
+
+            std::shared_ptr<VectorVfsDirectory> dtrv = out;
+            for (std::size_t j = 0; j < parts.size() - 1; ++j) {
+                if (dtrv == nullptr)
+                    return nullptr;
+                const auto subdir = dtrv->GetSubdirectory(parts[j]);
+                if (subdir == nullptr) {
+                    const auto temp = std::make_shared<VectorVfsDirectory>(
+                        std::vector<VirtualFile>{}, std::vector<VirtualDir>{}, parts[j]);
+                    dtrv->AddDirectory(temp);
+                    dtrv = temp;
+                } else {
+                    dtrv = std::dynamic_pointer_cast<VectorVfsDirectory>(subdir);
+                }
+            }
+
+            if (dtrv == nullptr)
+                return nullptr;
+            dtrv->AddFile(new_file);
+        }
+    }
+
+    return out;
+}
+
+} // namespace FileSys
diff --git a/src/core/file_sys/vfs_libzip.h b/src/core/file_sys/vfs_libzip.h
new file mode 100644
index 000000000..f68af576a
--- /dev/null
+++ b/src/core/file_sys/vfs_libzip.h
@@ -0,0 +1,13 @@
+// Copyright 2019 yuzu emulator team
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include "core/file_sys/vfs_types.h"
+
+namespace FileSys {
+
+VirtualDir ExtractZIP(VirtualFile zip);
+
+} // namespace FileSys