1 /* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
2 
3 /*
4  *  File-Roller
5  *
6  *  Copyright (C) 2001 The Free Software Foundation, Inc.
7  *
8  *  This program is free software; you can redistribute it and/or modify
9  *  it under the terms of the GNU General Public License as published by
10  *  the Free Software Foundation; either version 2 of the License, or
11  *  (at your option) any later version.
12  *
13  *  This program is distributed in the hope that it will be useful,
14  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
15  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
16  *  GNU General Public License for more details.
17  *
18  *  You should have received a copy of the GNU General Public License
19  *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
20  */
21 
22 #include <config.h>
23 #include <stdlib.h>
24 #include <string.h>
25 #include <time.h>
26 #include <unistd.h>
27 #include <glib.h>
28 #include "file-data.h"
29 #include "file-utils.h"
30 #include "fr-command.h"
31 #include "fr-command-unstuff.h"
32 #include "glib-utils.h"
33 
34 
35 struct _FrCommandUnstuff
36 {
37 	FrCommand  parent_instance;
38 
39 	char      *target_dir;
40 	FileData  *fdata;
41 };
42 
43 
G_DEFINE_TYPE(FrCommandUnstuff,fr_command_unstuff,fr_command_get_type ())44 G_DEFINE_TYPE (FrCommandUnstuff, fr_command_unstuff, fr_command_get_type ())
45 
46 
47 /* recursive rmdir to remove the left-overs from unstuff */
48 static void
49 recursive_rmdir (const char *path)
50 {
51 	GDir *dir;
52 	const char *dirname;
53 
54 	dir = g_dir_open (path, 0, NULL);
55 	if (dir == NULL)
56 		return;
57 
58 	dirname = g_dir_read_name (dir);
59 	while (dirname != NULL)
60 	{
61 		char *full_path;
62 
63 		if (strcmp (dirname, ".") == 0 || strcmp (dirname, "..") == 0)
64 			continue;
65 
66 		full_path = g_build_filename (path, dirname, NULL);
67 		recursive_rmdir (full_path);
68 		g_free (full_path);
69 
70 		dirname = g_dir_read_name (dir);
71 	}
72 
73 	rmdir (path);
74 
75 	g_dir_close (dir);
76 }
77 
78 
79 /* unstuff doesn't like file paths starting with /, that's so shite */
80 static char *
unstuff_is_shit_with_filenames(const char * orig)81 unstuff_is_shit_with_filenames (const char *orig)
82 {
83 	int i, num_slashes;
84 	char *current_dir, *filename;
85 
86 	g_return_val_if_fail (orig != NULL, NULL);
87 
88 	current_dir = g_get_current_dir ();
89 	i = num_slashes = 0;
90 	while (current_dir[i] != '\0') {
91 		if (current_dir[i]  == '/')
92 			num_slashes++;
93 		i++;
94 	}
95 	g_free (current_dir);
96 
97 	/* 3 characters for each ../ plus filename length plus \0 */
98 	filename = g_malloc (3 * i + strlen (orig) + 1);
99 	i = 0;
100 	for ( ; num_slashes > 0 ; num_slashes--) {
101 		memcpy (filename + i, "../", 3);
102 		i+=3;
103 	}
104 	memcpy (filename + i, orig, strlen (orig) + 1);
105 
106 	return filename;
107 }
108 
109 
110 static void
process_line(char * line,gpointer data)111 process_line (char     *line,
112 	      gpointer  data)
113 {
114 	FrCommand        *comm = FR_COMMAND (data);
115 	FrCommandUnstuff *unstuff_comm = FR_COMMAND_UNSTUFF (comm);
116 	const char       *str_start;
117 	char             *filename, *real_filename;
118 	int               i;
119 	FileData         *fdata;
120 
121 	g_return_if_fail (line != NULL);
122 
123 	if (strstr (line, "progressEvent - ")) {
124 		const char *ssize;
125 		guint size;
126 
127 		ssize = strstr (line, "progressEvent - ")
128 			+ strlen ("progressEvent - ");
129 		if (ssize[0] == '\0')
130 			size = 0;
131 		else
132 			size = g_ascii_strtoull (ssize, NULL, 10);
133 
134 		if (unstuff_comm->fdata != NULL)
135 			unstuff_comm->fdata->size = size;
136 
137 		return;
138 	}
139 
140 	if (strstr (line, "fileEvent") == NULL)
141 		return;
142 	if (strstr (line, unstuff_comm->target_dir + 1) == NULL)
143 		return;
144 
145 	/* Look for the filename, ends with a comma */
146 	str_start = strstr (line, unstuff_comm->target_dir + 1);
147 	str_start = str_start + strlen (unstuff_comm->target_dir) - 1;
148 	if (str_start[0] != '/')
149 		str_start--;
150 	if (str_start[0] == '.')
151 		str_start--;
152 	i = 0;
153 	while (str_start[i] != '\0' && str_start[i] != ',') {
154 		i++;
155 	}
156 	/* This is not supposed to happen */
157 	g_return_if_fail (str_start[i] != '\0');
158 	filename = g_strndup (str_start, i);
159 
160 	/* Same thing with the real filename */
161 	str_start = strstr (line, unstuff_comm->target_dir);
162 	i = 0;
163 	while (str_start[i] != '\0' && str_start[i] != ',') {
164 		i++;
165 	}
166 	real_filename = g_strndup (str_start, i);
167 
168 	fdata = file_data_new ();
169 	fdata->full_path = filename;
170 	fdata->original_path = filename;
171 	fdata->link = NULL;
172 	fdata->name = g_strdup (_g_path_get_basename (fdata->full_path));
173 	fdata->path = _g_path_remove_level (fdata->full_path);
174 
175 	fdata->size = 0;
176 	fdata->modified = time (NULL);
177 
178 	unstuff_comm->fdata = fdata;
179 	fr_archive_add_file (FR_ARCHIVE (comm), fdata);
180 
181 	unlink (real_filename);
182 	g_free (real_filename);
183 }
184 
185 
186 static void
list__begin(gpointer data)187 list__begin (gpointer data)
188 {
189 	FrCommandUnstuff *comm = data;
190 
191 	comm->fdata = NULL;
192 }
193 
194 
195 static gboolean
fr_command_unstuff_list(FrCommand * comm)196 fr_command_unstuff_list (FrCommand *comm)
197 {
198 	char *arg, *path;
199 	char *filename;
200 	char *path_dots;
201 
202 	fr_process_set_out_line_func (comm->process, process_line, comm);
203 
204 	fr_process_begin_command (comm->process, "unstuff");
205 	fr_process_set_begin_func (comm->process, list__begin, comm);
206 	fr_process_add_arg (comm->process, "--trace");
207 
208 	/* Actually unpack everything in a temporary directory */
209 	path = _g_path_get_temp_work_dir (NULL);
210 	path_dots = unstuff_is_shit_with_filenames (path);
211 	g_free (path);
212 
213 	arg = g_strdup_printf ("-d=%s", path_dots);
214 	FR_COMMAND_UNSTUFF (comm)->target_dir = path_dots;
215 	fr_process_add_arg (comm->process, arg);
216 	g_free (arg);
217 
218 	filename = unstuff_is_shit_with_filenames (comm->filename);
219 	fr_process_add_arg (comm->process, filename);
220 	g_free (filename);
221 	fr_process_end_command (comm->process);
222 
223 	return TRUE;
224 }
225 
226 
227 static void
fr_command_unstuff_extract(FrCommand * comm,const char * from_file,GList * file_list,const char * dest_dir,gboolean overwrite,gboolean skip_older,gboolean junk_paths)228 fr_command_unstuff_extract (FrCommand  *comm,
229 			    const char  *from_file,
230 			    GList      *file_list,
231 			    const char *dest_dir,
232 			    gboolean    overwrite,
233 			    gboolean    skip_older,
234 			    gboolean    junk_paths)
235 {
236 #if 0
237 	GList *scan;
238 #endif
239 	char  *filename;
240 
241 	fr_process_begin_command (comm->process, "unstuff");
242 
243 	if (dest_dir != NULL) {
244 		char *dest_dir_dots;
245 		char *arg;
246 
247 		dest_dir_dots = unstuff_is_shit_with_filenames (dest_dir);
248 		arg = g_strdup_printf ("-d=%s", dest_dir_dots);
249 		fr_process_add_arg (comm->process, arg);
250 		FR_COMMAND_UNSTUFF (comm)->target_dir = NULL;
251 		g_free (arg);
252 		g_free (dest_dir_dots);
253 	}
254 
255 	fr_process_add_arg (comm->process, "--trace");
256 
257 	/* unstuff doesn't like file paths starting with /, that's so shite */
258 	filename = unstuff_is_shit_with_filenames (comm->filename);
259 	fr_process_add_arg (comm->process, filename);
260 	g_free (filename);
261 
262 	/* FIXME it is not possible to unpack only some files */
263 #if 0
264 	for (scan = file_list; scan; scan = scan->next)
265 		fr_process_add_arg (comm->process, scan->data);
266 #endif
267 
268 	fr_process_end_command (comm->process);
269 }
270 
271 
272 static void
fr_command_unstuff_handle_error(FrCommand * comm,FrError * error)273 fr_command_unstuff_handle_error (FrCommand   *comm,
274 				 FrError *error)
275 {
276 	if ((error->type != FR_ERROR_NONE)
277 	    && (error->status <= 1))
278 	{
279 		fr_error_clear_gerror (error);
280 	}
281 }
282 
283 
284 const char *unstuff_mime_type[] = { "application/x-stuffit", NULL };
285 
286 
287 static const char **
fr_command_unstuff_get_mime_types(FrArchive * archive)288 fr_command_unstuff_get_mime_types (FrArchive *archive)
289 {
290 	return unstuff_mime_type;
291 }
292 
293 
294 static FrArchiveCap
fr_command_unstuff_get_capabilities(FrArchive * archive,const char * mime_type,gboolean check_command)295 fr_command_unstuff_get_capabilities (FrArchive  *archive,
296 			             const char *mime_type,
297 				     gboolean    check_command)
298 {
299 	FrArchiveCap capabilities;
300 
301 	capabilities = FR_ARCHIVE_CAN_STORE_MANY_FILES;
302 	if (_g_program_is_available ("unstuff", check_command))
303 		capabilities |= FR_ARCHIVE_CAN_READ;
304 
305 	return capabilities;
306 }
307 
308 
309 static const char *
fr_command_unstuff_get_packages(FrArchive * archive,const char * mime_type)310 fr_command_unstuff_get_packages (FrArchive  *archive,
311 			         const char *mime_type)
312 {
313 	return PACKAGES ("unstaff");
314 }
315 
316 
317 static void
fr_command_unstuff_finalize(GObject * object)318 fr_command_unstuff_finalize (GObject *object)
319 {
320 	FrCommandUnstuff *self;
321 
322 	g_return_if_fail (object != NULL);
323 	g_return_if_fail (FR_IS_COMMAND_UNSTUFF (object));
324 
325 	self = FR_COMMAND_UNSTUFF (object);
326 
327 	if (self->target_dir != NULL) {
328 		recursive_rmdir (self->target_dir);
329 		g_free (self->target_dir);
330 	}
331 
332 	if (G_OBJECT_CLASS (fr_command_unstuff_parent_class)->finalize)
333 		G_OBJECT_CLASS (fr_command_unstuff_parent_class)->finalize (object);
334 }
335 
336 
337 static void
fr_command_unstuff_class_init(FrCommandUnstuffClass * klass)338 fr_command_unstuff_class_init (FrCommandUnstuffClass *klass)
339 {
340 	GObjectClass   *gobject_class;
341 	FrArchiveClass *archive_class;
342 	FrCommandClass *command_class;
343 
344 	fr_command_unstuff_parent_class = g_type_class_peek_parent (klass);
345 
346 	gobject_class = G_OBJECT_CLASS (klass);
347 	gobject_class->finalize = fr_command_unstuff_finalize;
348 
349 	archive_class = FR_ARCHIVE_CLASS (klass);
350 	archive_class->get_mime_types   = fr_command_unstuff_get_mime_types;
351 	archive_class->get_capabilities = fr_command_unstuff_get_capabilities;
352 	archive_class->get_packages     = fr_command_unstuff_get_packages;
353 
354 	command_class = FR_COMMAND_CLASS (klass);
355 	command_class->list             = fr_command_unstuff_list;
356 	command_class->extract          = fr_command_unstuff_extract;
357 	command_class->handle_error     = fr_command_unstuff_handle_error;
358 }
359 
360 
361 static void
fr_command_unstuff_init(FrCommandUnstuff * self)362 fr_command_unstuff_init (FrCommandUnstuff *self)
363 {
364 	FrArchive *base = FR_ARCHIVE (self);
365 
366 	base->propAddCanUpdate             = FALSE;
367 	base->propAddCanReplace            = FALSE;
368 	base->propExtractCanAvoidOverwrite = FALSE;
369 	base->propExtractCanSkipOlder      = FALSE;
370 	base->propExtractCanJunkPaths      = FALSE;
371 	base->propPassword                 = TRUE;
372 	base->propTest                     = FALSE;
373 }
374