Add unachiver support

Based on the following commits from file-roller,
https://git.gnome.org/browse/file-roller/commit/?id=2575177ac037d2a8d8f3056b10685928d80d6275
https://git.gnome.org/browse/file-roller/commit/?id=f26caa6d5b76d406976ea78630fbaae4c8126a2e

1 files changed, 361 insertions, 0 deletions

diff --git a/src/fr-command-unarchiver.c b/src/fr-command-unarchiver.c
new file mode 100644
index 0000000..3e32f25
--- /dev/null
+++ b/src/fr-command-unarchiver.c
@@ -0,0 +1,361 @@
+/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
+
+/*
+ *  File-Roller
+ *
+ *  Copyright (C) 2012 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, see <http://www.gnu.org/licenses/>.
+ */
+
+#define _XOPEN_SOURCE       /* See feature_test_macros(7) */
+#include <time.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <glib.h>
+#include <glib/gi18n.h>
+#include <json-glib/json-glib.h>
+#include "file-data.h"
+#include "file-utils.h"
+#include "gio-utils.h"
+#include "glib-utils.h"
+#include "fr-command.h"
+#include "fr-command-unarchiver.h"
+#include "fr-error.h"
+
+#define LSAR_SUPPORTED_FORMAT 2
+#define LSAR_DATE_FORMAT "%Y-%m-%d %H:%M:%S %z"
+
+static void fr_command_unarchiver_class_init  (FrCommandUnarchiverClass *class);
+static void fr_command_unarchiver_init        (FrCommand         *afile);
+static void fr_command_unarchiver_finalize    (GObject           *object);
+
+/* Parent Class */
+
+static FrCommandClass *parent_class = NULL;
+
+
+/* -- list -- */
+
+
+static void
+process_line (char     *line,
+	      gpointer  data)
+{
+	FrCommandUnarchiver *unar_comm = FR_COMMAND_UNARCHIVER (data);
+	g_memory_input_stream_add_data (G_MEMORY_INPUT_STREAM (unar_comm->stream), line, -1, NULL);
+}
+
+
+static time_t
+mktime_from_string (const char *time_s)
+{
+	struct tm tm = {0, };
+	tm.tm_isdst = -1;
+	strptime (time_s, LSAR_DATE_FORMAT, &tm);
+	return mktime (&tm);
+}
+
+static void
+list_command_completed (gpointer data)
+{
+	FrCommandUnarchiver *unar_comm = FR_COMMAND_UNARCHIVER (data);
+	JsonParser          *parser;
+	GError              *error = NULL;
+
+	parser = json_parser_new ();
+	if (json_parser_load_from_stream (parser, unar_comm->stream, NULL, &error)) {
+		JsonObject *root;
+
+		root = json_node_get_object (json_parser_get_root (parser));
+
+		if (json_object_get_int_member (root, "lsarFormatVersion") == LSAR_SUPPORTED_FORMAT) {
+			JsonArray *content;
+			int        i;
+
+			content = json_object_get_array_member (root, "lsarContents");
+			for (i = 0; i < json_array_get_length (content); i++) {
+				JsonObject *entry;
+				FileData   *fdata;
+				const char *filename;
+
+				entry = json_array_get_object_element (content, i);
+				fdata = file_data_new ();
+				fdata->size = json_object_get_int_member (entry, "XADFileSize");
+				fdata->modified = mktime_from_string (json_object_get_string_member (entry, "XADLastModificationDate"));
+				if (json_object_has_member (entry, "XADIsEncrypted"))
+					fdata->encrypted = json_object_get_int_member (entry, "XADIsEncrypted") == 1;
+
+				filename = json_object_get_string_member (entry, "XADFileName");
+				if (*filename == '/') {
+					fdata->full_path = g_strdup (filename);
+					fdata->original_path = fdata->full_path;
+				}
+				else {
+					fdata->full_path = g_strconcat ("/", filename, NULL);
+					fdata->original_path = fdata->full_path + 1;
+				}
+
+				fdata->link = NULL;
+				if (json_object_has_member (entry, "XADIsDirectory"))
+					fdata->dir = json_object_get_int_member (entry, "XADIsDirectory") == 1;
+				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);
+
+				fr_command_add_file (FR_COMMAND (unar_comm), fdata);
+			}
+		}
+	}
+
+	g_object_unref (parser);
+}
+
+
+static void
+fr_command_unarchiver_list (FrCommand  *comm)
+{
+	FrCommandUnarchiver *unar_comm = FR_COMMAND_UNARCHIVER (comm);
+
+	_g_object_unref (unar_comm->stream);
+	unar_comm->stream = g_memory_input_stream_new ();
+
+	fr_process_set_out_line_func (comm->process, process_line, comm);
+
+	fr_process_begin_command (comm->process, "lsar");
+	fr_process_set_end_func (comm->process, list_command_completed, comm);
+	fr_process_add_arg (comm->process, "-j");
+	if ((comm->password != NULL) && (comm->password[0] != '\0'))
+		fr_process_add_arg_concat (comm->process, "-password=", comm->password, NULL);
+	fr_process_add_arg (comm->process, comm->filename);
+	fr_process_end_command (comm->process);
+
+	fr_process_start (comm->process);
+}
+
+
+static void
+process_line__extract (char     *line,
+		       gpointer  data)
+{
+	FrCommand           *comm = FR_COMMAND (data);
+	FrCommandUnarchiver *unar_comm = FR_COMMAND_UNARCHIVER (comm);
+
+	if (line == NULL)
+		return;
+
+	unar_comm->n_line++;
+
+	/* the first line is the name of the archive */
+	if (unar_comm->n_line == 1)
+		return;
+
+	if (comm->n_files > 1) {
+		double fraction = (double) ++comm->n_file / (comm->n_files + 1);
+		fr_command_progress (comm, CLAMP (fraction, 0.0, 1.0));
+	}
+	else
+		fr_command_message (comm, line);
+}
+
+
+static void
+fr_command_unarchiver_extract (FrCommand  *comm,
+			       const char *from_file,
+			       GList      *file_list,
+			       const char *dest_dir,
+			       gboolean    overwrite,
+			       gboolean    skip_older,
+			       gboolean    junk_paths)
+{
+	FrCommandUnarchiver *unar_comm = FR_COMMAND_UNARCHIVER (comm);
+	GList               *scan;
+
+	unar_comm->n_line = 0;
+
+	fr_process_use_standard_locale (comm->process, TRUE);
+	fr_process_set_out_line_func (comm->process,
+				      process_line__extract,
+				      comm);
+
+	fr_process_begin_command (comm->process, "unar");
+
+	if (overwrite)
+		fr_process_add_arg (comm->process, "-f");
+	else
+		fr_process_add_arg (comm->process, "-s");
+
+	if (junk_paths)
+		fr_process_add_arg (comm->process, "-D");
+
+	if ((comm->password != NULL) && (comm->password[0] != '\0'))
+		fr_process_add_arg_concat (comm->process, "-password=", comm->password, NULL);
+
+	if (dest_dir != NULL)
+		fr_process_add_arg_concat (comm->process, "-output-directory=", dest_dir, NULL);
+
+	fr_process_add_arg (comm->process, comm->filename);
+
+	for (scan = file_list; scan; scan = scan->next)
+		fr_process_add_arg (comm->process, scan->data);
+
+	fr_process_end_command (comm->process);
+}
+
+
+static void
+fr_command_unarchiver_handle_error (FrCommand   *comm,
+				    FrProcError *error)
+{
+	GList *scan;
+
+#if 0
+	{
+		for (scan = g_list_last (comm->process->err.raw); scan; scan = scan->prev)
+			g_print ("%s\n", (char*)scan->data);
+	}
+#endif
+
+	if (error->type == FR_PROC_ERROR_NONE)
+		return;
+
+	for (scan = g_list_last (comm->process->err.raw); scan; scan = scan->prev) {
+		char *line = scan->data;
+
+		if (strstr (line, "password") != NULL) {
+			error->type = FR_PROC_ERROR_ASK_PASSWORD;
+			break;
+		}
+	}
+}
+
+
+const char *unarchiver_mime_type[] = { "application/x-cbr",
+				       "application/x-rar",
+				       NULL };
+
+
+static const char **
+fr_command_unarchiver_get_mime_types (FrCommand *comm)
+{
+	return unarchiver_mime_type;
+}
+
+
+static FrCommandCap
+fr_command_unarchiver_get_capabilities (FrCommand  *comm,
+					const char *mime_type,
+					gboolean    check_command)
+{
+	FrCommandCap capabilities;
+
+	capabilities = FR_COMMAND_CAN_DO_NOTHING;
+	if (is_program_available ("lsar", check_command) && is_program_available ("unar", check_command))
+		capabilities |= FR_COMMAND_CAN_READ;
+
+	return capabilities;
+}
+
+
+static const char *
+fr_command_unarchiver_get_packages (FrCommand  *comm,
+				    const char *mime_type)
+{
+	return PACKAGES ("unarchiver");
+}
+
+
+static void
+fr_command_unarchiver_class_init (FrCommandUnarchiverClass *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_unarchiver_finalize;
+
+	afc->list             = fr_command_unarchiver_list;
+	afc->extract          = fr_command_unarchiver_extract;
+	afc->handle_error     = fr_command_unarchiver_handle_error;
+	afc->get_mime_types   = fr_command_unarchiver_get_mime_types;
+	afc->get_capabilities = fr_command_unarchiver_get_capabilities;
+	afc->get_packages     = fr_command_unarchiver_get_packages;
+}
+
+
+static void
+fr_command_unarchiver_init (FrCommand *comm)
+{
+	FrCommandUnarchiver *unar_comm;
+
+	comm->propExtractCanAvoidOverwrite = TRUE;
+	comm->propExtractCanSkipOlder      = FALSE;
+	comm->propExtractCanJunkPaths      = TRUE;
+	comm->propPassword                 = TRUE;
+	comm->propTest                     = FALSE;
+	comm->propListFromFile             = FALSE;
+
+	unar_comm = FR_COMMAND_UNARCHIVER (comm);
+	unar_comm->stream = NULL;
+}
+
+
+static void
+fr_command_unarchiver_finalize (GObject *object)
+{
+	FrCommandUnarchiver *unar_comm;
+
+	g_return_if_fail (object != NULL);
+	g_return_if_fail (FR_IS_COMMAND_UNARCHIVER (object));
+
+	unar_comm = FR_COMMAND_UNARCHIVER (object);
+	_g_object_unref (unar_comm->stream);
+
+	/* Chain up */
+	if (G_OBJECT_CLASS (parent_class)->finalize)
+		G_OBJECT_CLASS (parent_class)->finalize (object);
+}
+
+
+GType
+fr_command_unarchiver_get_type ()
+{
+	static GType type = 0;
+
+	if (! type) {
+		GTypeInfo type_info = {
+			sizeof (FrCommandUnarchiverClass),
+			NULL,
+			NULL,
+			(GClassInitFunc) fr_command_unarchiver_class_init,
+			NULL,
+			NULL,
+			sizeof (FrCommandUnarchiver),
+			0,
+			(GInstanceInitFunc) fr_command_unarchiver_init
+		};
+
+		type = g_type_register_static (FR_TYPE_COMMAND,
+					       "FrCommandUnarchiver",
+					       &type_info,
+					       0);
+	}
+
+	return type;
+}