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Diffstat (limited to '')
-rw-r--r-- | src/input/ArchiveInputPlugin.cxx | 93 |
1 files changed, 93 insertions, 0 deletions
diff --git a/src/input/ArchiveInputPlugin.cxx b/src/input/ArchiveInputPlugin.cxx new file mode 100644 index 000000000..0d856527f --- /dev/null +++ b/src/input/ArchiveInputPlugin.cxx @@ -0,0 +1,93 @@ +/* + * Copyright (C) 2003-2013 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 "ArchiveInputPlugin.hxx" +#include "ArchiveLookup.hxx" +#include "ArchiveList.hxx" +#include "ArchivePlugin.hxx" +#include "ArchiveFile.hxx" +#include "InputPlugin.hxx" + +#include <glib.h> + +/** + * select correct archive plugin to handle the input stream + * may allow stacking of archive plugins. for example for handling + * tar.gz a gzip handler opens file (through inputfile stream) + * then it opens a tar handler and sets gzip inputstream as + * parent_stream so tar plugin fetches file data from gzip + * plugin and gzip fetches file from disk + */ +static struct input_stream * +input_archive_open(const char *pathname, + Mutex &mutex, Cond &cond, + GError **error_r) +{ + const struct archive_plugin *arplug; + char *archive, *filename, *suffix, *pname; + struct input_stream *is; + + if (!g_path_is_absolute(pathname)) + return NULL; + + pname = g_strdup(pathname); + // archive_lookup will modify pname when true is returned + if (!archive_lookup(pname, &archive, &filename, &suffix)) { + g_debug("not an archive, lookup %s failed\n", pname); + g_free(pname); + return NULL; + } + + //check which archive plugin to use (by ext) + arplug = archive_plugin_from_suffix(suffix); + if (!arplug) { + g_warning("can't handle archive %s\n",archive); + g_free(pname); + return NULL; + } + + auto file = archive_file_open(arplug, archive, error_r); + if (file == NULL) { + g_free(pname); + return NULL; + } + + //setup fileops + is = file->OpenStream(filename, mutex, cond, error_r); + g_free(pname); + file->Close(); + + return is; +} + +const struct input_plugin input_plugin_archive = { + "archive", + nullptr, + nullptr, + input_archive_open, + nullptr, + nullptr, + nullptr, + nullptr, + nullptr, + nullptr, + nullptr, + nullptr, +}; |