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 3, 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 #include "gnunet_fs_service.h"
35 static int delete_incomplete;
37 static const struct GNUNET_CONFIGURATION_Handle *cfg;
39 static struct GNUNET_FS_Handle *ctx;
41 static struct GNUNET_FS_DownloadContext *dc;
43 static unsigned int anonymity = 1;
45 static unsigned int parallelism = 16;
47 static unsigned int request_parallelism = 4092;
49 static int do_recursive;
51 static char *filename;
53 static int local_only;
56 cleanup_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
64 shutdown_task (void *cls, 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, const struct GNUNET_FS_ProgressInfo *info)
98 case GNUNET_FS_STATUS_DOWNLOAD_START:
101 _("Starting download `%s'.\n"), info->value.download.filename);
103 case GNUNET_FS_STATUS_DOWNLOAD_PROGRESS:
106 s = GNUNET_STRINGS_relative_time_to_string (info->value.download.eta);
107 t = GNUNET_STRINGS_byte_size_fancy (info->value.download.completed *
109 (info->value.download.
110 duration.rel_value + 1));
112 _("Downloading `%s' at %llu/%llu (%s remaining, %s/s)\n"),
113 info->value.download.filename,
114 (unsigned long long) info->value.download.completed,
115 (unsigned long long) info->value.download.size, s, t);
120 case GNUNET_FS_STATUS_DOWNLOAD_ERROR:
122 _("Error downloading: %s.\n"),
123 info->value.download.specifics.error.message);
124 GNUNET_SCHEDULER_shutdown ();
126 case GNUNET_FS_STATUS_DOWNLOAD_COMPLETED:
127 s = GNUNET_STRINGS_byte_size_fancy (info->value.download.completed * 1000 /
128 (info->value.download.
129 duration.rel_value + 1));
130 fprintf (stdout, _("Downloading `%s' done (%s/s).\n"),
131 info->value.download.filename, s);
133 if (info->value.download.dc == dc)
134 GNUNET_SCHEDULER_shutdown ();
136 case GNUNET_FS_STATUS_DOWNLOAD_STOPPED:
137 if (info->value.download.dc == dc)
138 GNUNET_SCHEDULER_add_continuation (&cleanup_task,
140 GNUNET_SCHEDULER_REASON_PREREQ_DONE);
142 case GNUNET_FS_STATUS_DOWNLOAD_ACTIVE:
143 case GNUNET_FS_STATUS_DOWNLOAD_INACTIVE:
146 fprintf (stderr, _("Unexpected status: %d\n"), info->status);
154 * Main function that will be run by the scheduler.
157 * @param args remaining command-line arguments
158 * @param cfgfile name of the configuration file used (for saving, can be NULL!)
159 * @param c configuration
164 const char *cfgfile, const struct GNUNET_CONFIGURATION_Handle *c)
166 struct GNUNET_FS_Uri *uri;
168 enum GNUNET_FS_DownloadOptions options;
172 fprintf (stderr, _("You need to specify a URI argument.\n"));
175 uri = GNUNET_FS_uri_parse (args[0], &emsg);
178 fprintf (stderr, _("Failed to parse URI: %s\n"), emsg);
183 if ((!GNUNET_FS_uri_test_chk (uri)) && (!GNUNET_FS_uri_test_loc (uri)))
185 fprintf (stderr, _("Only CHK or LOC URIs supported.\n"));
187 GNUNET_FS_uri_destroy (uri);
190 if (NULL == filename)
192 fprintf (stderr, _("Target filename must be specified.\n"));
194 GNUNET_FS_uri_destroy (uri);
198 ctx = GNUNET_FS_start (cfg,
202 GNUNET_FS_FLAGS_NONE,
203 GNUNET_FS_OPTIONS_DOWNLOAD_PARALLELISM,
205 GNUNET_FS_OPTIONS_REQUEST_PARALLELISM,
206 request_parallelism, GNUNET_FS_OPTIONS_END);
209 fprintf (stderr, _("Could not initialize `%s' subsystem.\n"), "FS");
210 GNUNET_FS_uri_destroy (uri);
214 options = GNUNET_FS_DOWNLOAD_OPTION_NONE;
216 options |= GNUNET_FS_DOWNLOAD_OPTION_RECURSIVE;
218 options |= GNUNET_FS_DOWNLOAD_OPTION_LOOPBACK_ONLY;
219 dc = GNUNET_FS_download_start (ctx,
224 GNUNET_FS_uri_chk_get_file_size (uri),
225 anonymity, options, NULL, NULL);
226 GNUNET_FS_uri_destroy (uri);
229 GNUNET_FS_stop (ctx);
233 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_UNIT_FOREVER_REL,
234 &shutdown_task, NULL);
239 * The main function to download GNUnet.
241 * @param argc number of arguments from the command line
242 * @param argv command line arguments
243 * @return 0 ok, 1 on error
246 main (int argc, char *const *argv)
248 static const struct GNUNET_GETOPT_CommandLineOption options[] = {
249 {'a', "anonymity", "LEVEL",
250 gettext_noop ("set the desired LEVEL of receiver-anonymity"),
251 1, &GNUNET_GETOPT_set_uint, &anonymity},
252 {'D', "delete-incomplete", NULL,
253 gettext_noop ("delete incomplete downloads (when aborted with CTRL-C)"),
254 0, &GNUNET_GETOPT_set_one, &delete_incomplete},
255 {'n', "no-network", NULL,
256 gettext_noop ("only search the local peer (no P2P network search)"),
257 1, &GNUNET_GETOPT_set_uint, &local_only},
258 {'o', "output", "FILENAME",
259 gettext_noop ("write the file to FILENAME"),
260 1, &GNUNET_GETOPT_set_string, &filename},
261 {'p', "parallelism", "DOWNLOADS",
263 ("set the maximum number of parallel downloads that is allowed"),
264 1, &GNUNET_GETOPT_set_uint, ¶llelism},
265 {'r', "request-parallelism", "REQUESTS",
267 ("set the maximum number of parallel requests for blocks that is allowed"),
268 1, &GNUNET_GETOPT_set_uint, &request_parallelism},
269 {'R', "recursive", NULL,
270 gettext_noop ("download a GNUnet directory recursively"),
271 0, &GNUNET_GETOPT_set_one, &do_recursive},
272 {'V', "verbose", NULL,
273 gettext_noop ("be verbose (print progress information)"),
274 0, &GNUNET_GETOPT_increment_value, &verbose},
275 GNUNET_GETOPT_OPTION_END
278 GNUNET_PROGRAM_run (argc,
280 "gnunet-download [OPTIONS] URI",
282 ("Download files from GNUnet using a GNUnet CHK or LOC URI (gnunet://fs/chk/...)"),
283 options, &run, NULL)) ? ret : 1;
286 /* end of gnunet-download.c */