[file-roller] Use dpkg-deb to view and extract .deb files
- From: Paolo Bacchilega <paobac src gnome org>
- To: commits-list gnome org
- Cc:
- Subject: [file-roller] Use dpkg-deb to view and extract .deb files
- Date: Thu, 10 Jun 2010 07:33:46 +0000 (UTC)
commit a36e13942b9e57bfe5f35a00e6dcb0f0f5124fbb
Author: Josselin Mouette <joss malsain org>
Date: Thu Jun 10 09:31:18 2010 +0200
Use dpkg-deb to view and extract .deb files
Currently file-roller can open .deb files using ar and tar, but it has two
important drawbacks:
- It requires binutils installed, which is not the case on standard
installations.
- It only shows the ar archive, which is not really useful, and should
directly show the full contents instead.
Therefore it would be really nice if file-roller could use the dpkg-deb command
(which is always here on Debian systems) to view and extract .deb files
(creating is also possible this way, but not really useful).
[bug #576436]
src/Makefile.am | 2 +
src/fr-command-dpkg.c | 314 +++++++++++++++++++++++++++++++++++++++++++++++++
src/fr-command-dpkg.h | 53 ++++++++
src/main.c | 2 +
4 files changed, 371 insertions(+), 0 deletions(-)
---
diff --git a/src/Makefile.am b/src/Makefile.am
index 523fde8..019a7ac 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -103,6 +103,8 @@ file_roller_SOURCES = \
fr-command-cfile.h \
fr-command-cpio.c \
fr-command-cpio.h \
+ fr-command-dpkg.c \
+ fr-command-dpkg.h \
fr-command-iso.c \
fr-command-iso.h \
fr-command-jar.h \
diff --git a/src/fr-command-dpkg.c b/src/fr-command-dpkg.c
new file mode 100644
index 0000000..8c2c012
--- /dev/null
+++ b/src/fr-command-dpkg.c
@@ -0,0 +1,314 @@
+/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
+
+/*
+ * File-Roller
+ *
+ * Copyright (C) 2001 The Free Software Foundation, Inc.
+ *
+ * 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., 59 Temple Street #330, Boston, MA 02111-1307, USA.
+ */
+
+#include <config.h>
+#include <stdlib.h>
+#include <string.h>
+#include <time.h>
+
+#include <glib.h>
+
+#include "file-data.h"
+#include "file-utils.h"
+#include "glib-utils.h"
+#include "fr-command.h"
+#include "fr-command-dpkg.h"
+
+static void fr_command_dpkg_class_init (FrCommandDpkgClass *class);
+static void fr_command_dpkg_init (FrCommand *afile);
+static void fr_command_dpkg_finalize (GObject *object);
+
+/* Parent Class */
+
+static FrCommandClass *parent_class = NULL;
+
+static void
+process_metadata_line (char *line,
+ FrCommand *comm)
+{
+ FileData *fdata;
+ char **fields;
+ char *name;
+
+ g_return_if_fail (line != NULL);
+
+ fields = split_line (line, 6);
+ if (!fields[1] || !g_str_equal (fields[1], "bytes,")) {
+ g_strfreev (fields);
+ return;
+ }
+
+ fdata = file_data_new ();
+ fdata->size = g_ascii_strtoull (fields[0], NULL, 10);
+
+ if (fields[5] && g_str_equal (fields[4],"*")) {
+ name = g_strdup (fields[5]);
+ } else {
+ name = g_strdup (get_last_field (line, 5));
+ }
+ g_strstrip (name);
+
+ fdata->full_path = g_strconcat ("/DEBIAN/", name, NULL);
+ fdata->original_path = fdata->full_path + 1;
+
+ g_strfreev (fields);
+ g_free (name);
+
+ fdata->name = g_strdup (name);
+ fdata->path = g_strdup ("DEBIAN");
+ fr_command_add_file (comm, fdata);
+}
+
+static void
+process_data_line (char *line,
+ gpointer data)
+{
+ FileData *fdata;
+ FrCommand *comm = FR_COMMAND (data);
+ char **fields;
+ char **tmfields;
+ struct tm tm = {0, };
+ const char *name;
+
+ g_return_if_fail (line != NULL);
+
+ if (line[0] == ' ') {
+ /* This is the output of dpkg-deb -I */
+ process_metadata_line (line, comm);
+ return;
+ }
+
+ fdata = file_data_new ();
+
+ fields = split_line (line, 5);
+ fdata->size = g_ascii_strtoull (fields[2], NULL, 10);
+ tmfields = g_strsplit(fields[3], "-", 3);
+ if (tmfields[2]) {
+ tm.tm_year = atoi (tmfields[0]) - 1900;
+ tm.tm_mon = atoi (tmfields[1]);
+ tm.tm_mday = atoi (tmfields[2]);
+ }
+ g_strfreev (tmfields);
+ tmfields = g_strsplit (fields[4], ":", 2);
+ if (tmfields[1]) {
+ tm.tm_hour = atoi (tmfields[0]);
+ tm.tm_min = atoi (tmfields[1]);
+ }
+ g_strfreev (tmfields);
+ fdata->modified = mktime (&tm);
+ g_strfreev (fields);
+
+ name = get_last_field (line, 6);
+ fields = g_strsplit (name, " -> ", 2);
+
+ fdata->dir = line[0] == 'd';
+ name = fields[0];
+ if (g_str_has_prefix (name, "./")) { /* Should generally be the case */
+ fdata->full_path = g_strdup (name + 1);
+ fdata->original_path = fdata->full_path + 1;
+ } else if (name[0] == '/') {
+ fdata->full_path = g_strdup (name);
+ fdata->original_path = fdata->full_path;
+ } else {
+ fdata->full_path = g_strconcat ("/", name, NULL);
+ fdata->original_path = fdata->full_path + 1;
+ }
+ if (fdata->dir && (name[strlen (name) - 1] != '/')) {
+ char *old_full_path = fdata->full_path;
+ fdata->full_path = g_strconcat (old_full_path, "/", NULL);
+ g_free (old_full_path);
+ fdata->original_path = g_strdup (name);
+ fdata->free_original_path = TRUE;
+ }
+
+ if (fields[1] != NULL)
+ fdata->link = g_strdup (fields[1]);
+ g_strfreev (fields);
+
+ if (fdata->dir)
+ fdata->name = dir_name_from_path (fdata->full_path);
+ else
+ fdata->name = g_strdup (file_name_from_path (fdata->full_path));
+ fdata->path = remove_level_from_path (fdata->full_path);
+
+ if (*fdata->name == 0)
+ file_data_free (fdata);
+ else
+ fr_command_add_file (comm, fdata);
+}
+
+
+static void
+fr_command_dpkg_list (FrCommand *comm)
+{
+ fr_process_set_out_line_func (comm->process, process_data_line, comm);
+
+ fr_process_begin_command (comm->process, "dpkg-deb");
+ fr_process_add_arg (comm->process, "-I");
+ fr_process_add_arg (comm->process, comm->filename);
+ fr_process_end_command (comm->process);
+ fr_process_start (comm->process);
+
+ fr_process_begin_command (comm->process, "dpkg-deb");
+ fr_process_add_arg (comm->process, "-c");
+ fr_process_add_arg (comm->process, comm->filename);
+ fr_process_end_command (comm->process);
+ fr_process_start (comm->process);
+}
+
+
+static void
+fr_command_dpkg_extract (FrCommand *comm,
+ const char *from_file,
+ GList *file_list,
+ const char *dest_dir,
+ gboolean overwrite,
+ gboolean skip_older,
+ gboolean junk_paths)
+{
+ fr_process_begin_command (comm->process, "dpkg-deb");
+ fr_process_add_arg (comm->process, "-x");
+ fr_process_add_arg (comm->process, comm->filename);
+ if (dest_dir != NULL) {
+ fr_process_add_arg (comm->process, dest_dir);
+ } else {
+ fr_process_add_arg (comm->process, ".");
+ }
+ /* FIXME it is not possible to unpack only some files */
+ fr_process_end_command (comm->process);
+
+ /* Also extract metadata in DEBIAN/ */
+ fr_process_begin_command (comm->process, "dpkg-deb");
+ if (dest_dir != NULL) {
+ fr_process_set_working_dir (comm->process, dest_dir);
+ }
+ fr_process_add_arg (comm->process, "-e");
+ fr_process_add_arg (comm->process, comm->filename);
+ fr_process_end_command (comm->process);
+
+ fr_process_start (comm->process);
+}
+
+
+const char *dpkg_mime_type[] = { "application/x-deb", NULL };
+
+
+const char **
+fr_command_dpkg_get_mime_types (FrCommand *comm)
+{
+ return dpkg_mime_type;
+}
+
+
+FrCommandCap
+fr_command_dpkg_get_capabilities (FrCommand *comm,
+ const char *mime_type,
+ gboolean check_command)
+{
+ FrCommandCap capabilities;
+
+ capabilities = FR_COMMAND_CAN_ARCHIVE_MANY_FILES;
+ if (is_program_available ("dpkg-deb", check_command))
+ capabilities |= FR_COMMAND_CAN_READ;
+
+ return capabilities;
+}
+
+
+static const char *
+fr_command_dpkg_get_packages (FrCommand *comm,
+ const char *mime_type)
+{
+ return PACKAGES ("dpkg");
+}
+
+
+static void
+fr_command_dpkg_class_init (FrCommandDpkgClass *class)
+{
+ GObjectClass *gobject_class = G_OBJECT_CLASS (class);
+ FrCommandClass *afc;
+
+ parent_class = g_type_class_peek_parent (class);
+ afc = (FrCommandClass*) class;
+
+ gobject_class->finalize = fr_command_dpkg_finalize;
+
+ afc->list = fr_command_dpkg_list;
+ afc->extract = fr_command_dpkg_extract;
+ afc->get_mime_types = fr_command_dpkg_get_mime_types;
+ afc->get_capabilities = fr_command_dpkg_get_capabilities;
+ afc->get_packages = fr_command_dpkg_get_packages;
+}
+
+
+static void
+fr_command_dpkg_init (FrCommand *comm)
+{
+ comm->propAddCanUpdate = FALSE;
+ comm->propAddCanReplace = FALSE;
+ comm->propExtractCanAvoidOverwrite = FALSE;
+ comm->propExtractCanSkipOlder = FALSE;
+ comm->propExtractCanJunkPaths = FALSE;
+ comm->propPassword = FALSE;
+ comm->propTest = FALSE;
+}
+
+
+static void
+fr_command_dpkg_finalize (GObject *object)
+{
+ g_return_if_fail (object != NULL);
+ g_return_if_fail (FR_IS_COMMAND_DPKG (object));
+
+ /* Chain up */
+ if (G_OBJECT_CLASS (parent_class)->finalize)
+ G_OBJECT_CLASS (parent_class)->finalize (object);
+}
+
+
+GType
+fr_command_dpkg_get_type ()
+{
+ static GType type = 0;
+
+ if (! type) {
+ GTypeInfo type_info = {
+ sizeof (FrCommandDpkgClass),
+ NULL,
+ NULL,
+ (GClassInitFunc) fr_command_dpkg_class_init,
+ NULL,
+ NULL,
+ sizeof (FrCommandDpkg),
+ 0,
+ (GInstanceInitFunc) fr_command_dpkg_init
+ };
+
+ type = g_type_register_static (FR_TYPE_COMMAND,
+ "FRCommandDpkg",
+ &type_info,
+ 0);
+ }
+
+ return type;
+}
diff --git a/src/fr-command-dpkg.h b/src/fr-command-dpkg.h
new file mode 100644
index 0000000..802eb54
--- /dev/null
+++ b/src/fr-command-dpkg.h
@@ -0,0 +1,53 @@
+/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
+
+/*
+ * File-Roller
+ *
+ * Copyright (C) 2001 The Free Software Foundation, Inc.
+ *
+ * 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., 59 Temple Street #330, Boston, MA 02111-1307, USA.
+ */
+
+#ifndef FR_COMMAND_DPKG_H
+#define FR_COMMAND_DPKG_H
+
+#include <glib.h>
+#include "fr-command.h"
+#include "fr-process.h"
+
+#define FR_TYPE_COMMAND_DPKG (fr_command_dpkg_get_type ())
+#define FR_COMMAND_DPKG(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), FR_TYPE_COMMAND_DPKG, FrCommandDpkg))
+#define FR_COMMAND_DPKG_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), FR_TYPE_COMMAND_DPKG, FrCommandDpkgClass))
+#define FR_IS_COMMAND_DPKG(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), FR_TYPE_COMMAND_DPKG))
+#define FR_IS_COMMAND_DPKG_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), FR_TYPE_COMMAND_DPKG))
+#define FR_COMMAND_DPKG_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS((obj), FR_TYPE_COMMAND_DPKG, FrCommandDpkgClass))
+
+typedef struct _FrCommandDpkg FrCommandDpkg;
+typedef struct _FrCommandDpkgClass FrCommandDpkgClass;
+
+struct _FrCommandDpkg
+{
+ FrCommand __parent;
+ gboolean is_empty;
+};
+
+struct _FrCommandDpkgClass
+{
+ FrCommandClass __parent_class;
+};
+
+GType fr_command_dpkg_get_type (void);
+
+#endif /* FR_COMMAND_DPKG_H */
diff --git a/src/main.c b/src/main.c
index 73ce2fd..1056241 100644
--- a/src/main.c
+++ b/src/main.c
@@ -35,6 +35,7 @@
#include "fr-command-arj.h"
#include "fr-command-cfile.h"
#include "fr-command-cpio.h"
+#include "fr-command-dpkg.h"
#include "fr-command-iso.h"
#include "fr-command-jar.h"
#include "fr-command-lha.h"
@@ -608,6 +609,7 @@ register_commands (void)
register_command (FR_TYPE_COMMAND_TAR);
register_command (FR_TYPE_COMMAND_CFILE);
register_command (FR_TYPE_COMMAND_7Z);
+ register_command (FR_TYPE_COMMAND_DPKG);
register_command (FR_TYPE_COMMAND_ACE);
register_command (FR_TYPE_COMMAND_ALZ);
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