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,
57 const struct GNUNET_SCHEDULER_TaskContext *tc)
65 shutdown_task (void *cls,
66 const struct GNUNET_SCHEDULER_TaskContext *tc)
68 struct GNUNET_FS_DownloadContext *d;
74 GNUNET_FS_download_stop (d, delete_incomplete);
80 * Called by FS client to give information about the progress of an
84 * @param info details about the event, specifying the event type
85 * and various bits about the event
86 * @return client-context (for the next progress call
87 * for this operation; should be set to NULL for
88 * SUSPEND and STOPPED events). The value returned
89 * will be passed to future callbacks in the respective
90 * field in the GNUNET_FS_ProgressInfo struct.
93 progress_cb (void *cls,
94 const struct GNUNET_FS_ProgressInfo *info)
101 case GNUNET_FS_STATUS_DOWNLOAD_START:
104 _("Starting download `%s'.\n"),
105 info->value.download.filename);
107 case GNUNET_FS_STATUS_DOWNLOAD_PROGRESS:
110 s = GNUNET_STRINGS_relative_time_to_string(info->value.download.eta);
111 t = GNUNET_STRINGS_byte_size_fancy(info->value.download.completed * 1000LL / (info->value.download.duration.rel_value + 1));
113 _("Downloading `%s' at %llu/%llu (%s remaining, %s/s)\n"),
114 info->value.download.filename,
115 (unsigned long long) info->value.download.completed,
116 (unsigned long long) info->value.download.size,
123 case GNUNET_FS_STATUS_DOWNLOAD_ERROR:
125 _("Error downloading: %s.\n"),
126 info->value.download.specifics.error.message);
127 GNUNET_SCHEDULER_shutdown ();
129 case GNUNET_FS_STATUS_DOWNLOAD_COMPLETED:
130 s = GNUNET_STRINGS_byte_size_fancy(info->value.download.completed * 1000 / (info->value.download.duration.rel_value + 1));
132 _("Downloading `%s' done (%s/s).\n"),
133 info->value.download.filename,
136 if (info->value.download.dc == dc)
137 GNUNET_SCHEDULER_shutdown ();
139 case GNUNET_FS_STATUS_DOWNLOAD_STOPPED:
140 if (info->value.download.dc == dc)
141 GNUNET_SCHEDULER_add_continuation (&cleanup_task,
143 GNUNET_SCHEDULER_REASON_PREREQ_DONE);
145 case GNUNET_FS_STATUS_DOWNLOAD_ACTIVE:
146 case GNUNET_FS_STATUS_DOWNLOAD_INACTIVE:
150 _("Unexpected status: %d\n"),
159 * Main function that will be run by the scheduler.
162 * @param args remaining command-line arguments
163 * @param cfgfile name of the configuration file used (for saving, can be NULL!)
164 * @param c configuration
170 const struct GNUNET_CONFIGURATION_Handle *c)
172 struct GNUNET_FS_Uri *uri;
174 enum GNUNET_FS_DownloadOptions options;
179 _("You need to specify a URI argument.\n"));
182 uri = GNUNET_FS_uri_parse (args[0],
187 _("Failed to parse URI: %s\n"),
193 if ( (! GNUNET_FS_uri_test_chk (uri)) &&
194 (! GNUNET_FS_uri_test_loc (uri)) )
197 _("Only CHK or LOC URIs supported.\n"));
199 GNUNET_FS_uri_destroy (uri);
202 if (NULL == filename)
205 _("Target filename must be specified.\n"));
207 GNUNET_FS_uri_destroy (uri);
211 ctx = GNUNET_FS_start (cfg,
215 GNUNET_FS_FLAGS_NONE,
216 GNUNET_FS_OPTIONS_DOWNLOAD_PARALLELISM,
218 GNUNET_FS_OPTIONS_REQUEST_PARALLELISM,
220 GNUNET_FS_OPTIONS_END);
224 _("Could not initialize `%s' subsystem.\n"),
226 GNUNET_FS_uri_destroy (uri);
230 options = GNUNET_FS_DOWNLOAD_OPTION_NONE;
232 options |= GNUNET_FS_DOWNLOAD_OPTION_RECURSIVE;
234 options |= GNUNET_FS_DOWNLOAD_OPTION_LOOPBACK_ONLY;
235 dc = GNUNET_FS_download_start (ctx,
240 GNUNET_FS_uri_chk_get_file_size (uri),
245 GNUNET_FS_uri_destroy (uri);
248 GNUNET_FS_stop (ctx);
252 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_UNIT_FOREVER_REL,
259 * The main function to download GNUnet.
261 * @param argc number of arguments from the command line
262 * @param argv command line arguments
263 * @return 0 ok, 1 on error
266 main (int argc, char *const *argv)
268 static const struct GNUNET_GETOPT_CommandLineOption options[] = {
269 {'a', "anonymity", "LEVEL",
270 gettext_noop ("set the desired LEVEL of receiver-anonymity"),
271 1, &GNUNET_GETOPT_set_uint, &anonymity},
272 {'D', "delete-incomplete", NULL,
273 gettext_noop ("delete incomplete downloads (when aborted with CTRL-C)"),
274 0, &GNUNET_GETOPT_set_one, &delete_incomplete},
275 {'n', "no-network", NULL,
276 gettext_noop ("only search the local peer (no P2P network search)"),
277 1, &GNUNET_GETOPT_set_uint, &local_only},
278 {'o', "output", "FILENAME",
279 gettext_noop ("write the file to FILENAME"),
280 1, &GNUNET_GETOPT_set_string, &filename},
281 {'p', "parallelism", "DOWNLOADS",
283 ("set the maximum number of parallel downloads that is allowed"),
284 1, &GNUNET_GETOPT_set_uint, ¶llelism},
285 {'r', "request-parallelism", "REQUESTS",
287 ("set the maximum number of parallel requests for blocks that is allowed"),
288 1, &GNUNET_GETOPT_set_uint, &request_parallelism},
289 {'R', "recursive", NULL,
290 gettext_noop ("download a GNUnet directory recursively"),
291 0, &GNUNET_GETOPT_set_one, &do_recursive},
292 {'V', "verbose", NULL,
293 gettext_noop ("be verbose (print progress information)"),
294 0, &GNUNET_GETOPT_increment_value, &verbose},
295 GNUNET_GETOPT_OPTION_END
298 GNUNET_PROGRAM_run (argc,
300 "gnunet-download [OPTIONS] URI",
302 ("Download files from GNUnet using a GNUnet CHK or LOC URI (gnunet://fs/chk/...)"),
303 options, &run, NULL)) ? ret : 1;
306 /* end of gnunet-download.c */