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// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Copyright (C) 2017, Bastien Nocera <hadess@hadess.net>
*/
#include "pps-archive.h"
#include "config.h"
#include <archive.h>
#include <archive_entry.h>
#include <gio/gio.h>
#define BUFFER_SIZE (64 * 1024)
struct _PpsArchive {
GObject parent_instance;
PpsArchiveType type;
/* libarchive */
struct archive *libar;
struct archive_entry *libar_entry;
};
G_DEFINE_TYPE (PpsArchive, pps_archive, G_TYPE_OBJECT);
static void
pps_archive_finalize (GObject *object)
{
PpsArchive *archive = PPS_ARCHIVE (object);
switch (archive->type) {
case PPS_ARCHIVE_TYPE_RAR:
case PPS_ARCHIVE_TYPE_ZIP:
case PPS_ARCHIVE_TYPE_7Z:
case PPS_ARCHIVE_TYPE_TAR:
g_clear_pointer (&archive->libar, archive_free);
break;
default:
break;
}
G_OBJECT_CLASS (pps_archive_parent_class)->finalize (object);
}
static void
pps_archive_class_init (PpsArchiveClass *klass)
{
GObjectClass *object_class = (GObjectClass *) klass;
object_class->finalize = pps_archive_finalize;
}
PpsArchive *
pps_archive_new (void)
{
return g_object_new (PPS_TYPE_ARCHIVE, NULL);
}
static void
libarchive_set_archive_type (PpsArchive *archive,
PpsArchiveType archive_type)
{
archive->type = archive_type;
archive->libar = archive_read_new ();
if (archive_type == PPS_ARCHIVE_TYPE_ZIP)
archive_read_support_format_zip (archive->libar);
else if (archive_type == PPS_ARCHIVE_TYPE_7Z)
archive_read_support_format_7zip (archive->libar);
else if (archive_type == PPS_ARCHIVE_TYPE_TAR)
archive_read_support_format_tar (archive->libar);
else if (archive_type == PPS_ARCHIVE_TYPE_RAR) {
archive_read_support_format_rar (archive->libar);
archive_read_support_format_rar5 (archive->libar);
} else
g_assert_not_reached ();
}
PpsArchiveType
pps_archive_get_archive_type (PpsArchive *archive)
{
g_return_val_if_fail (PPS_IS_ARCHIVE (archive), PPS_ARCHIVE_TYPE_NONE);
return archive->type;
}
gboolean
pps_archive_set_archive_type (PpsArchive *archive,
PpsArchiveType archive_type)
{
g_return_val_if_fail (PPS_IS_ARCHIVE (archive), FALSE);
g_return_val_if_fail (archive->type == PPS_ARCHIVE_TYPE_NONE, FALSE);
libarchive_set_archive_type (archive, archive_type);
return TRUE;
}
gboolean
pps_archive_open_filename (PpsArchive *archive,
const char *path,
GError **error)
{
int r;
g_return_val_if_fail (PPS_IS_ARCHIVE (archive), FALSE);
g_return_val_if_fail (archive->type != PPS_ARCHIVE_TYPE_NONE, FALSE);
g_return_val_if_fail (path != NULL, FALSE);
r = archive_read_open_filename (archive->libar, path, BUFFER_SIZE);
if (r != ARCHIVE_OK) {
g_set_error (error, G_IO_ERROR, G_IO_ERROR_FAILED,
"Error opening archive: %s", archive_error_string (archive->libar));
return FALSE;
}
return TRUE;
}
static gboolean
libarchive_read_next_header (PpsArchive *archive,
GError **error)
{
while (1) {
int r;
r = archive_read_next_header (archive->libar, &archive->libar_entry);
if (r != ARCHIVE_OK) {
if (r != ARCHIVE_EOF)
g_set_error (error, G_IO_ERROR, G_IO_ERROR_FAILED,
"Error reading archive: %s", archive_error_string (archive->libar));
return FALSE;
}
if (archive_entry_filetype (archive->libar_entry) != AE_IFREG) {
g_debug ("Skipping '%s' as it's not a regular file",
archive_entry_pathname (archive->libar_entry));
continue;
}
g_debug ("At header for file '%s'", archive_entry_pathname (archive->libar_entry));
break;
}
return TRUE;
}
gboolean
pps_archive_read_next_header (PpsArchive *archive,
GError **error)
{
g_return_val_if_fail (PPS_IS_ARCHIVE (archive), FALSE);
g_return_val_if_fail (archive->type != PPS_ARCHIVE_TYPE_NONE, FALSE);
return libarchive_read_next_header (archive, error);
}
gboolean
pps_archive_at_entry (PpsArchive *archive)
{
g_return_val_if_fail (PPS_IS_ARCHIVE (archive), FALSE);
g_return_val_if_fail (archive->type != PPS_ARCHIVE_TYPE_NONE, FALSE);
return (archive->libar_entry != NULL);
}
const char *
pps_archive_get_entry_pathname (PpsArchive *archive)
{
g_return_val_if_fail (PPS_IS_ARCHIVE (archive), NULL);
g_return_val_if_fail (archive->type != PPS_ARCHIVE_TYPE_NONE, NULL);
g_return_val_if_fail (archive->libar_entry != NULL, NULL);
return archive_entry_pathname (archive->libar_entry);
}
gint64
pps_archive_get_entry_size (PpsArchive *archive)
{
g_return_val_if_fail (PPS_IS_ARCHIVE (archive), -1);
g_return_val_if_fail (archive->type != PPS_ARCHIVE_TYPE_NONE, -1);
g_return_val_if_fail (archive->libar_entry != NULL, -1);
return archive_entry_size (archive->libar_entry);
}
gboolean
pps_archive_get_entry_is_encrypted (PpsArchive *archive)
{
g_return_val_if_fail (PPS_IS_ARCHIVE (archive), FALSE);
g_return_val_if_fail (archive->type != PPS_ARCHIVE_TYPE_NONE, FALSE);
g_return_val_if_fail (archive->libar_entry != NULL, -1);
return archive_entry_is_encrypted (archive->libar_entry);
}
gssize
pps_archive_read_data (PpsArchive *archive,
void *buf,
gsize count,
GError **error)
{
gssize r = -1;
g_return_val_if_fail (PPS_IS_ARCHIVE (archive), -1);
g_return_val_if_fail (archive->type != PPS_ARCHIVE_TYPE_NONE, -1);
g_return_val_if_fail (archive->libar_entry != NULL, -1);
r = archive_read_data (archive->libar, buf, count);
if (r < 0) {
g_set_error (error, G_IO_ERROR, G_IO_ERROR_FAILED,
"Failed to decompress data: %s", archive_error_string (archive->libar));
}
return r;
}
void
pps_archive_reset (PpsArchive *archive)
{
g_return_if_fail (PPS_IS_ARCHIVE (archive));
g_return_if_fail (archive->type != PPS_ARCHIVE_TYPE_NONE);
g_clear_pointer (&archive->libar, archive_free);
libarchive_set_archive_type (archive, archive->type);
archive->libar_entry = NULL;
}
static void
pps_archive_init (PpsArchive *archive)
{
}
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