2 This file is part of GNUnet.
3 (C) 2001, 2002, 2004, 2005, 2006, 2007, 2009 Christian Grothoff (and other contributing authors)
5 GNUnet is free software; you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published
7 by the Free Software Foundation; either version 2, or (at your
8 option) any later version.
10 GNUnet is distributed in the hope that it will be useful, but
11 WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 General Public License for more details.
15 You should have received a copy of the GNU General Public License
16 along with GNUnet; see the file COPYING. If not, write to the
17 Free Software Foundation, Inc., 59 Temple Place - Suite 330,
18 Boston, MA 02111-1307, USA.
21 * @file fs/gnunet-download.c
22 * @brief downloading for files on GNUnet
23 * @author Christian Grothoff
24 * @author Krista Bennett
25 * @author James Blackwell
26 * @author Igor Wronsky
29 * - many command-line options
32 #include "gnunet_fs_service.h"
38 static int delete_incomplete;
40 static const struct GNUNET_CONFIGURATION_Handle *cfg;
42 static struct GNUNET_FS_Handle *ctx;
44 static struct GNUNET_SCHEDULER_Handle *sched;
46 static struct GNUNET_FS_DownloadContext *dc;
48 static unsigned int anonymity = 1;
50 static char *filename;
54 cleanup_task (void *cls,
55 const struct GNUNET_SCHEDULER_TaskContext *tc)
63 shutdown_task (void *cls,
64 const struct GNUNET_SCHEDULER_TaskContext *tc)
66 struct GNUNET_FS_DownloadContext *d;
72 GNUNET_FS_download_stop (d, delete_incomplete);
78 * Called by FS client to give information about the progress of an
82 * @param info details about the event, specifying the event type
83 * and various bits about the event
84 * @return client-context (for the next progress call
85 * for this operation; should be set to NULL for
86 * SUSPEND and STOPPED events). The value returned
87 * will be passed to future callbacks in the respective
88 * field in the GNUNET_FS_ProgressInfo struct.
91 progress_cb (void *cls,
92 const struct GNUNET_FS_ProgressInfo *info)
99 case GNUNET_FS_STATUS_DOWNLOAD_START:
101 case GNUNET_FS_STATUS_DOWNLOAD_PROGRESS:
104 s = GNUNET_STRINGS_relative_time_to_string(info->value.download.eta);
105 t = GNUNET_STRINGS_byte_size_fancy(info->value.download.completed * 1000 / (info->value.download.duration.value + 1));
107 _("Downloading `%s' at %llu/%llu (%s remaining, %s/s)\n"),
108 info->value.download.filename,
109 (unsigned long long) info->value.download.completed,
110 (unsigned long long) info->value.download.size,
117 case GNUNET_FS_STATUS_DOWNLOAD_ERROR:
119 _("Error downloading: %s.\n"),
120 info->value.download.specifics.error.message);
121 GNUNET_SCHEDULER_shutdown (sched);
123 case GNUNET_FS_STATUS_DOWNLOAD_COMPLETED:
124 s = GNUNET_STRINGS_byte_size_fancy(info->value.download.completed * 1000 / (info->value.download.duration.value + 1));
126 _("Downloading `%s' done (%s/s).\n"),
127 info->value.download.filename,
130 if (info->value.download.dc == dc)
131 GNUNET_SCHEDULER_shutdown (sched);
133 case GNUNET_FS_STATUS_DOWNLOAD_STOPPED:
134 if (info->value.download.dc == dc)
135 GNUNET_SCHEDULER_add_continuation (sched,
138 GNUNET_SCHEDULER_REASON_PREREQ_DONE);
142 _("Unexpected status: %d\n"),
151 * Main function that will be run by the scheduler.
154 * @param s the scheduler to use
155 * @param args remaining command-line arguments
156 * @param cfgfile name of the configuration file used (for saving, can be NULL!)
157 * @param c configuration
161 struct GNUNET_SCHEDULER_Handle *s,
164 const struct GNUNET_CONFIGURATION_Handle *c)
166 struct GNUNET_FS_Uri *uri;
168 enum GNUNET_FS_DownloadOptions options;
171 /* FIXME: check arguments */
172 uri = GNUNET_FS_uri_parse (args[0],
177 _("Failed to parse URI: %s\n"),
183 if (! GNUNET_FS_uri_test_chk (uri))
186 "Only CHK URIs supported right now.\n");
188 GNUNET_FS_uri_destroy (uri);
191 if (NULL == filename)
194 "Target filename must be specified.\n");
196 GNUNET_FS_uri_destroy (uri);
200 ctx = GNUNET_FS_start (sched,
205 GNUNET_FS_FLAGS_NONE,
206 GNUNET_FS_OPTIONS_END);
210 _("Could not initialize `%s' subsystem.\n"),
212 GNUNET_FS_uri_destroy (uri);
216 options = GNUNET_FS_DOWNLOAD_OPTION_NONE;
217 dc = GNUNET_FS_download_start (ctx,
222 GNUNET_FS_uri_chk_get_file_size (uri),
227 GNUNET_FS_uri_destroy (uri);
230 GNUNET_FS_stop (ctx);
234 GNUNET_SCHEDULER_add_delayed (sched,
235 GNUNET_TIME_UNIT_FOREVER_REL,
242 * gnunet-download command line options
244 static struct GNUNET_GETOPT_CommandLineOption options[] = {
245 {'a', "anonymity", "LEVEL",
246 gettext_noop ("set the desired LEVEL of receiver-anonymity"),
247 1, &GNUNET_GETOPT_set_uint, &anonymity},
250 {'d', "directory", NULL,
252 ("download a GNUnet directory that has already been downloaded. Requires that a filename of an existing file is specified instead of the URI. The download will only download the top-level files in the directory unless the `-R' option is also specified."),
253 0, &GNUNET_getopt_configure_set_one, &do_directory},
254 {'D', "delete-incomplete", NULL,
255 gettext_noop ("delete incomplete downloads (when aborted with CTRL-C)"),
256 0, &GNUNET_getopt_configure_set_one, &do_delete_incomplete},
258 {'o', "output", "FILENAME",
259 gettext_noop ("write the file to FILENAME"),
260 1, &GNUNET_GETOPT_set_string, &filename},
262 {'p', "parallelism", "DOWNLOADS",
264 ("set the maximum number of parallel downloads that are allowed"),
265 1, &GNUNET_getopt_configure_set_uint, ¶llelism},
266 {'R', "recursive", NULL,
267 gettext_noop ("download a GNUnet directory recursively"),
268 0, &GNUNET_getopt_configure_set_one, &do_recursive},
270 {'V', "verbose", NULL,
271 gettext_noop ("be verbose (print progress information)"),
272 0, &GNUNET_GETOPT_set_one, &verbose},
273 GNUNET_GETOPT_OPTION_END
278 * The main function to download GNUnet.
280 * @param argc number of arguments from the command line
281 * @param argv command line arguments
282 * @return 0 ok, 1 on error
285 main (int argc, char *const *argv)
288 GNUNET_PROGRAM_run (argc,
292 ("Download files from GNUnet."),
293 options, &run, NULL)) ? ret : 1;
296 /* end of gnunet-download.c */