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-rw-r--r--src/storage/plugins/SmbclientStorage.cxx212
1 files changed, 212 insertions, 0 deletions
diff --git a/src/storage/plugins/SmbclientStorage.cxx b/src/storage/plugins/SmbclientStorage.cxx
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index 000000000..70a6e16bb
--- /dev/null
+++ b/src/storage/plugins/SmbclientStorage.cxx
@@ -0,0 +1,212 @@
+/*
+ * Copyright (C) 2003-2014 The Music Player Daemon Project
+ * http://www.musicpd.org
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include "config.h"
+#include "SmbclientStorage.hxx"
+#include "storage/StoragePlugin.hxx"
+#include "storage/StorageInterface.hxx"
+#include "storage/FileInfo.hxx"
+#include "lib/smbclient/Init.hxx"
+#include "lib/smbclient/Mutex.hxx"
+#include "fs/Traits.hxx"
+#include "util/Error.hxx"
+#include "thread/Mutex.hxx"
+
+#include <libsmbclient.h>
+
+class SmbclientDirectoryReader final : public StorageDirectoryReader {
+ const std::string base;
+ const unsigned handle;
+
+ const char *name;
+
+public:
+ SmbclientDirectoryReader(std::string &&_base, unsigned _handle)
+ :base(std::move(_base)), handle(_handle) {}
+
+ virtual ~SmbclientDirectoryReader();
+
+ /* virtual methods from class StorageDirectoryReader */
+ const char *Read() override;
+ bool GetInfo(bool follow, FileInfo &info, Error &error) override;
+};
+
+class SmbclientStorage final : public Storage {
+ const std::string base;
+
+ SMBCCTX *const ctx;
+
+public:
+ SmbclientStorage(const char *_base, SMBCCTX *_ctx)
+ :base(_base), ctx(_ctx) {}
+
+ virtual ~SmbclientStorage() {
+ smbclient_mutex.lock();
+ smbc_free_context(ctx, 1);
+ smbclient_mutex.unlock();
+ }
+
+ /* virtual methods from class Storage */
+ bool GetInfo(const char *uri_utf8, bool follow, FileInfo &info,
+ Error &error) override;
+
+ StorageDirectoryReader *OpenDirectory(const char *uri_utf8,
+ Error &error) override;
+
+ std::string MapUTF8(const char *uri_utf8) const override;
+
+ const char *MapToRelativeUTF8(const char *uri_utf8) const override;
+};
+
+std::string
+SmbclientStorage::MapUTF8(const char *uri_utf8) const
+{
+ assert(uri_utf8 != nullptr);
+
+ if (*uri_utf8 == 0)
+ return base;
+
+ return PathTraitsUTF8::Build(base.c_str(), uri_utf8);
+}
+
+const char *
+SmbclientStorage::MapToRelativeUTF8(const char *uri_utf8) const
+{
+ return PathTraitsUTF8::Relative(base.c_str(), uri_utf8);
+}
+
+static bool
+GetInfo(const char *path, FileInfo &info, Error &error)
+{
+ struct stat st;
+ smbclient_mutex.lock();
+ bool success = smbc_stat(path, &st) == 0;
+ smbclient_mutex.unlock();
+ if (!success) {
+ error.SetErrno();
+ return false;
+ }
+
+ if (S_ISREG(st.st_mode))
+ info.type = FileInfo::Type::REGULAR;
+ else if (S_ISDIR(st.st_mode))
+ info.type = FileInfo::Type::DIRECTORY;
+ else
+ info.type = FileInfo::Type::OTHER;
+
+ info.size = st.st_size;
+ info.mtime = st.st_mtime;
+ info.device = st.st_dev;
+ info.inode = st.st_ino;
+ return true;
+}
+
+bool
+SmbclientStorage::GetInfo(const char *uri_utf8, gcc_unused bool follow,
+ FileInfo &info, Error &error)
+{
+ const std::string mapped = MapUTF8(uri_utf8);
+ return ::GetInfo(mapped.c_str(), info, error);
+}
+
+StorageDirectoryReader *
+SmbclientStorage::OpenDirectory(const char *uri_utf8, Error &error)
+{
+ std::string mapped = MapUTF8(uri_utf8);
+ smbclient_mutex.lock();
+ int handle = smbc_opendir(mapped.c_str());
+ smbclient_mutex.unlock();
+ if (handle < 0) {
+ error.SetErrno();
+ return nullptr;
+ }
+
+ return new SmbclientDirectoryReader(std::move(mapped.c_str()), handle);
+}
+
+gcc_pure
+static bool
+SkipNameFS(const char *name)
+{
+ return name[0] == '.' &&
+ (name[1] == 0 ||
+ (name[1] == '.' && name[2] == 0));
+}
+
+SmbclientDirectoryReader::~SmbclientDirectoryReader()
+{
+ smbclient_mutex.lock();
+ smbc_close(handle);
+ smbclient_mutex.unlock();
+}
+
+const char *
+SmbclientDirectoryReader::Read()
+{
+ const ScopeLock protect(smbclient_mutex);
+
+ struct smbc_dirent *e;
+ while ((e = smbc_readdir(handle)) != nullptr) {
+ name = e->name;
+ if (!SkipNameFS(name))
+ return name;
+ }
+
+ return nullptr;
+}
+
+bool
+SmbclientDirectoryReader::GetInfo(gcc_unused bool follow, FileInfo &info,
+ Error &error)
+{
+ const std::string path = PathTraitsUTF8::Build(base.c_str(), name);
+ return ::GetInfo(path.c_str(), info, error);
+}
+
+static Storage *
+CreateSmbclientStorageURI(gcc_unused EventLoop &event_loop, const char *base,
+ Error &error)
+{
+ if (memcmp(base, "smb://", 6) != 0)
+ return nullptr;
+
+ if (!SmbclientInit(error))
+ return nullptr;
+
+ const ScopeLock protect(smbclient_mutex);
+ SMBCCTX *ctx = smbc_new_context();
+ if (ctx == nullptr) {
+ error.SetErrno("smbc_new_context() failed");
+ return nullptr;
+ }
+
+ SMBCCTX *ctx2 = smbc_init_context(ctx);
+ if (ctx2 == nullptr) {
+ error.SetErrno("smbc_init_context() failed");
+ smbc_free_context(ctx, 1);
+ return nullptr;
+ }
+
+ return new SmbclientStorage(base, ctx2);
+}
+
+const StoragePlugin smbclient_storage_plugin = {
+ "smbclient",
+ CreateSmbclientStorageURI,
+};