aboutsummaryrefslogtreecommitdiffstats
path: root/src/LocateUri.cxx
diff options
context:
space:
mode:
Diffstat (limited to 'src/LocateUri.cxx')
-rw-r--r--src/LocateUri.cxx120
1 files changed, 120 insertions, 0 deletions
diff --git a/src/LocateUri.cxx b/src/LocateUri.cxx
new file mode 100644
index 000000000..71c8d9093
--- /dev/null
+++ b/src/LocateUri.cxx
@@ -0,0 +1,120 @@
+/*
+ * Copyright (C) 2003-2015 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 "LocateUri.hxx"
+#include "client/Client.hxx"
+#include "fs/AllocatedPath.hxx"
+#include "ls.hxx"
+#include "util/UriUtil.hxx"
+#include "util/StringUtil.hxx"
+#include "util/Error.hxx"
+#include "util/Domain.hxx"
+
+#ifdef ENABLE_DATABASE
+#include "storage/StorageInterface.hxx"
+#endif
+
+const Domain locate_uri_domain("locate_uri");
+
+static LocatedUri
+LocateFileUri(const char *uri, const Client *client,
+#ifdef ENABLE_DATABASE
+ const Storage *storage,
+#endif
+ Error &error)
+{
+ auto path = AllocatedPath::FromUTF8(uri, error);
+ if (path.IsNull())
+ return LocatedUri::Unknown();
+
+#ifdef ENABLE_DATABASE
+ if (storage != nullptr) {
+ const char *suffix = storage->MapToRelativeUTF8(uri);
+ if (suffix != nullptr)
+ /* this path was relative to the music
+ directory */
+ return LocatedUri(LocatedUri::Type::RELATIVE, suffix);
+ }
+#endif
+
+ if (client != nullptr && !client->AllowFile(path, error))
+ return LocatedUri::Unknown();
+
+ return LocatedUri(LocatedUri::Type::PATH, uri, std::move(path));
+}
+
+static LocatedUri
+LocateAbsoluteUri(const char *uri,
+#ifdef ENABLE_DATABASE
+ const Storage *storage,
+#endif
+ Error &error)
+{
+ if (!uri_supported_scheme(uri)) {
+ error.Set(locate_uri_domain, "Unsupported URI scheme");
+ return LocatedUri::Unknown();
+ }
+
+#ifdef ENABLE_DATABASE
+ if (storage != nullptr) {
+ const char *suffix = storage->MapToRelativeUTF8(uri);
+ if (suffix != nullptr)
+ return LocatedUri(LocatedUri::Type::RELATIVE, suffix);
+ }
+#endif
+
+ return LocatedUri(LocatedUri::Type::ABSOLUTE, uri);
+}
+
+LocatedUri
+LocateUri(const char *uri, const Client *client,
+#ifdef ENABLE_DATABASE
+ const Storage *storage,
+#endif
+ Error &error)
+{
+ /* skip the obsolete "file://" prefix */
+ const char *path_utf8 = StringAfterPrefix(uri, "file://");
+ if (path_utf8 != nullptr) {
+ if (!PathTraitsUTF8::IsAbsolute(path_utf8)) {
+ error.Set(locate_uri_domain, "Malformed file:// URI");
+ return LocatedUri::Unknown();
+ }
+
+ return LocateFileUri(path_utf8, client,
+#ifdef ENABLE_DATABASE
+ storage,
+#endif
+ error);
+ } else if (PathTraitsUTF8::IsAbsolute(uri))
+ return LocateFileUri(uri, client,
+#ifdef ENABLE_DATABASE
+ storage,
+#endif
+ error);
+ else if (uri_has_scheme(uri))
+ return LocateAbsoluteUri(uri,
+#ifdef ENABLE_DATABASE
+ storage,
+#endif
+ error);
+ else
+ return LocatedUri(LocatedUri::Type::RELATIVE, uri);
+}