7 files changed, 617 insertions, 0 deletions
diff --git a/src/storage/FileInfo.hxx b/src/storage/FileInfo.hxx
new file mode 100644
index 000000000..8dd152c0a
--- /dev/null
+++ b/src/storage/FileInfo.hxx
@@ -0,0 +1,62 @@
+/*
+ * 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.
+ */
+
+#ifndef MPD_STORAGE_FILE_INFO_HXX
+#define MPD_STORAGE_FILE_INFO_HXX
+
+#include "check.h"
+
+#include <time.h>
+#include <stdint.h>
+
+struct FileInfo {
+	enum class Type : uint8_t {
+		OTHER,
+		REGULAR,
+		DIRECTORY,
+	};
+
+	Type type;
+
+	/**
+	 * The file size in bytes.  Only valid for #Type::REGULAR.
+	 */
+	uint64_t size;
+
+	/**
+	 * The modification time.  0 means unknown / not applicable.
+	 */
+	time_t mtime;
+
+	/**
+	 * Device id and inode number.  0 means unknown / not
+	 * applicable.
+	 */
+	unsigned device, inode;
+
+	bool IsRegular() const {
+		return type == Type::REGULAR;
+	}
+
+	bool IsDirectory() const {
+		return type == Type::DIRECTORY;
+	}
+};
+
+#endif
diff --git a/src/storage/StorageInterface.cxx b/src/storage/StorageInterface.cxx
new file mode 100644
index 000000000..93c50a8ac
--- /dev/null
+++ b/src/storage/StorageInterface.cxx
@@ -0,0 +1,37 @@
+/*
+ * 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 "StorageInterface.hxx"
+#include "fs/AllocatedPath.hxx"
+#include "fs/Traits.hxx"
+
+AllocatedPath
+Storage::MapFS(gcc_unused const char *uri_utf8) const
+{
+	return AllocatedPath::Null();
+}
+
+AllocatedPath
+Storage::MapChildFS(const char *uri_utf8,
+		    const char *child_utf8) const
+{
+	const auto uri2 = PathTraitsUTF8::Build(uri_utf8, child_utf8);
+	return MapFS(uri2.c_str());
+}
diff --git a/src/storage/StorageInterface.hxx b/src/storage/StorageInterface.hxx
new file mode 100644
index 000000000..18bee8cfd
--- /dev/null
+++ b/src/storage/StorageInterface.hxx
@@ -0,0 +1,73 @@
+/*
+ * 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.
+ */
+
+#ifndef MPD_STORAGE_INTERFACE_HXX
+#define MPD_STORAGE_INTERFACE_HXX
+
+#include "check.h"
+#include "fs/AllocatedPath.hxx"
+#include "fs/DirectoryReader.hxx"
+
+#include <string>
+
+struct FileInfo;
+class AllocatedPath;
+
+class StorageDirectoryReader {
+public:
+	StorageDirectoryReader() = default;
+	StorageDirectoryReader(const StorageDirectoryReader &) = delete;
+	virtual ~StorageDirectoryReader() {}
+
+	virtual const char *Read() = 0;
+	virtual bool GetInfo(bool follow, FileInfo &info, Error &error) = 0;
+};
+
+class Storage {
+public:
+	Storage() = default;
+	Storage(const Storage &) = delete;
+	virtual ~Storage() {}
+
+	virtual bool GetInfo(const char *uri_utf8, bool follow, FileInfo &info,
+			     Error &error) = 0;
+
+	virtual StorageDirectoryReader *OpenDirectory(const char *uri_utf8,
+						      Error &error) = 0;
+
+	/**
+	 * Map the given relative URI to an absolute URI.
+	 */
+	gcc_pure
+	virtual std::string MapUTF8(const char *uri_utf8) const = 0;
+
+	/**
+	 * Map the given relative URI to a local file path.  Returns
+	 * AllocatedPath::Null() on error or if this storage does not
+	 * support local files.
+	 */
+	gcc_pure
+	virtual AllocatedPath MapFS(const char *uri_utf8) const;
+
+	gcc_pure
+	AllocatedPath MapChildFS(const char *uri_utf8,
+				 const char *child_utf8) const;
+};
+
+#endif
diff --git a/src/storage/plugins/LocalStorage.cxx b/src/storage/plugins/LocalStorage.cxx
new file mode 100644
index 000000000..0d45c9dcc
--- /dev/null
+++ b/src/storage/plugins/LocalStorage.cxx
@@ -0,0 +1,146 @@
+/*
+ * 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 "LocalStorage.hxx"
+#include "storage/FileInfo.hxx"
+#include "util/Error.hxx"
+#include "fs/FileSystem.hxx"
+
+static bool
+Stat(Path path, bool follow, FileInfo &info, Error &error)
+{
+	struct stat st;
+	if (!StatFile(path, st, follow)) {
+		error.SetErrno();
+
+		const auto path_utf8 = path.ToUTF8();
+		error.FormatPrefix("Failed to stat %s: ", path_utf8.c_str());
+		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;
+}
+
+std::string
+LocalStorage::MapUTF8(const char *uri_utf8) const
+{
+	assert(uri_utf8 != nullptr);
+
+	if (*uri_utf8 == 0)
+		return base_utf8;
+
+	return PathTraitsUTF8::Build(base_utf8.c_str(), uri_utf8);
+}
+
+AllocatedPath
+LocalStorage::MapFS(const char *uri_utf8, Error &error) const
+{
+	assert(uri_utf8 != nullptr);
+
+	if (*uri_utf8 == 0)
+		return base_fs;
+
+	AllocatedPath path_fs = AllocatedPath::FromUTF8(uri_utf8, error);
+	if (!path_fs.IsNull())
+		path_fs = AllocatedPath::Build(base_fs, path_fs);
+
+	return path_fs;
+}
+
+AllocatedPath
+LocalStorage::MapFS(const char *uri_utf8) const
+{
+	return MapFS(uri_utf8, IgnoreError());
+}
+
+bool
+LocalStorage::GetInfo(const char *uri_utf8, bool follow, FileInfo &info,
+		      Error &error)
+{
+	AllocatedPath path_fs = MapFS(uri_utf8, error);
+	if (path_fs.IsNull())
+		return false;
+
+	return Stat(path_fs, follow, info, error);
+}
+
+StorageDirectoryReader *
+LocalStorage::OpenDirectory(const char *uri_utf8, Error &error)
+{
+	AllocatedPath path_fs = MapFS(uri_utf8, error);
+	if (path_fs.IsNull())
+		return nullptr;
+
+	LocalDirectoryReader *reader =
+		new LocalDirectoryReader(std::move(path_fs));
+	if (reader->HasFailed()) {
+		error.FormatErrno("Failed to open '%s'", uri_utf8);
+		delete reader;
+		return nullptr;
+	}
+
+	return reader;
+}
+
+gcc_pure
+static bool
+SkipNameFS(const char *name_fs)
+{
+	return name_fs[0] == '.' &&
+		(name_fs[1] == 0 ||
+		 (name_fs[1] == '.' && name_fs[2] == 0));
+}
+
+const char *
+LocalDirectoryReader::Read()
+{
+	while (reader.ReadEntry()) {
+		const Path name_fs = reader.GetEntry();
+		if (SkipNameFS(name_fs.c_str()))
+			continue;
+
+		name_utf8 = name_fs.ToUTF8();
+		if (name_utf8.empty())
+			continue;
+
+		return name_utf8.c_str();
+	}
+
+	return nullptr;
+}
+
+bool
+LocalDirectoryReader::GetInfo(bool follow, FileInfo &info, Error &error)
+{
+	const AllocatedPath path_fs =
+		AllocatedPath::Build(base_fs, reader.GetEntry());
+	return Stat(path_fs, follow, info, error);
+}
diff --git a/src/storage/plugins/LocalStorage.hxx b/src/storage/plugins/LocalStorage.hxx
new file mode 100644
index 000000000..bcbced3eb
--- /dev/null
+++ b/src/storage/plugins/LocalStorage.hxx
@@ -0,0 +1,74 @@
+/*
+ * 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.
+ */
+
+#ifndef MPD_STORAGE_LOCAL_HXX
+#define MPD_STORAGE_LOCAL_HXX
+
+#include "check.h"
+#include "storage/StorageInterface.hxx"
+#include "fs/AllocatedPath.hxx"
+#include "fs/DirectoryReader.hxx"
+
+#include <string>
+
+class LocalDirectoryReader final : public StorageDirectoryReader {
+	AllocatedPath base_fs;
+
+	DirectoryReader reader;
+
+	std::string name_utf8;
+
+public:
+	LocalDirectoryReader(AllocatedPath &&_base_fs)
+		:base_fs(std::move(_base_fs)), reader(base_fs) {}
+
+	bool HasFailed() {
+		return reader.HasFailed();
+	}
+
+	/* virtual methods from class StorageDirectoryReader */
+	virtual const char *Read() override;
+	virtual bool GetInfo(bool follow, FileInfo &info,
+			     Error &error) override;
+};
+
+class LocalStorage final : public Storage {
+	const std::string base_utf8;
+	const AllocatedPath base_fs;
+
+public:
+	LocalStorage(const char *_base_utf8, Path _base_fs)
+		:base_utf8(_base_utf8), base_fs(_base_fs) {}
+
+	/* virtual methods from class Storage */
+	virtual bool GetInfo(const char *uri_utf8, bool follow, FileInfo &info,
+			     Error &error) override;
+
+	virtual StorageDirectoryReader *OpenDirectory(const char *uri_utf8,
+						      Error &error) override;
+
+	virtual std::string MapUTF8(const char *uri_utf8) const override;
+
+	virtual AllocatedPath MapFS(const char *uri_utf8) const override;
+
+private:
+	AllocatedPath MapFS(const char *uri_utf8, Error &error) const;
+};
+
+#endif
diff --git a/src/storage/plugins/SmbclientStorage.cxx b/src/storage/plugins/SmbclientStorage.cxx
new file mode 100644
index 000000000..8dafff082
--- /dev/null
+++ b/src/storage/plugins/SmbclientStorage.cxx
@@ -0,0 +1,194 @@
+/*
+ * 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/StorageInterface.hxx"
+#include "storage/FileInfo.hxx"
+#include "lib/smbclient/Init.hxx"
+#include "lib/smbclient/Mutex.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 */
+	virtual const char *Read() override;
+	virtual 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 */
+	virtual bool GetInfo(const char *uri_utf8, bool follow, FileInfo &info,
+			     Error &error) override;
+
+	virtual StorageDirectoryReader *OpenDirectory(const char *uri_utf8,
+						      Error &error) override;
+
+	virtual std::string MapUTF8(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);
+}
+
+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);
+}
+
+Storage *
+CreateSmbclientStorage(const char *base, Error &error)
+{
+	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);
+}
diff --git a/src/storage/plugins/SmbclientStorage.hxx b/src/storage/plugins/SmbclientStorage.hxx
new file mode 100644
index 000000000..3a77ebf1d
--- /dev/null
+++ b/src/storage/plugins/SmbclientStorage.hxx
@@ -0,0 +1,31 @@
+/*
+ * 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.
+ */
+
+#ifndef MPD_STORAGE_SMBCLIENT_HXX
+#define MPD_STORAGE_SMBCLIENT_HXX
+
+#include "check.h"
+
+class Error;
+class Storage;
+
+Storage *
+CreateSmbclientStorage(const char *base, Error &error);
+
+#endif