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 #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_SCHEDULER_Handle *sched;
43 static struct GNUNET_FS_DownloadContext *dc;
45 static unsigned int anonymity = 1;
47 static unsigned int parallelism = 16;
49 static int do_recursive;
51 static char *filename;
55 cleanup_task (void *cls,
56 const struct GNUNET_SCHEDULER_TaskContext *tc)
64 shutdown_task (void *cls,
65 const struct GNUNET_SCHEDULER_TaskContext *tc)
67 struct GNUNET_FS_DownloadContext *d;
73 GNUNET_FS_download_stop (d, delete_incomplete);
79 * Called by FS client to give information about the progress of an
83 * @param info details about the event, specifying the event type
84 * and various bits about the event
85 * @return client-context (for the next progress call
86 * for this operation; should be set to NULL for
87 * SUSPEND and STOPPED events). The value returned
88 * will be passed to future callbacks in the respective
89 * field in the GNUNET_FS_ProgressInfo struct.
92 progress_cb (void *cls,
93 const struct GNUNET_FS_ProgressInfo *info)
100 case GNUNET_FS_STATUS_DOWNLOAD_START:
102 case GNUNET_FS_STATUS_DOWNLOAD_PROGRESS:
105 s = GNUNET_STRINGS_relative_time_to_string(info->value.download.eta);
106 t = GNUNET_STRINGS_byte_size_fancy(info->value.download.completed * 1000LL / (info->value.download.duration.value + 1));
108 _("Downloading `%s' at %llu/%llu (%s remaining, %s/s)\n"),
109 info->value.download.filename,
110 (unsigned long long) info->value.download.completed,
111 (unsigned long long) info->value.download.size,
118 case GNUNET_FS_STATUS_DOWNLOAD_ERROR:
120 _("Error downloading: %s.\n"),
121 info->value.download.specifics.error.message);
122 GNUNET_SCHEDULER_shutdown (sched);
124 case GNUNET_FS_STATUS_DOWNLOAD_COMPLETED:
125 s = GNUNET_STRINGS_byte_size_fancy(info->value.download.completed * 1000 / (info->value.download.duration.value + 1));
127 _("Downloading `%s' done (%s/s).\n"),
128 info->value.download.filename,
131 if (info->value.download.dc == dc)
132 GNUNET_SCHEDULER_shutdown (sched);
134 case GNUNET_FS_STATUS_DOWNLOAD_STOPPED:
135 if (info->value.download.dc == dc)
136 GNUNET_SCHEDULER_add_continuation (sched,
139 GNUNET_SCHEDULER_REASON_PREREQ_DONE);
143 _("Unexpected status: %d\n"),
152 * Main function that will be run by the scheduler.
155 * @param s the scheduler to use
156 * @param args remaining command-line arguments
157 * @param cfgfile name of the configuration file used (for saving, can be NULL!)
158 * @param c configuration
162 struct GNUNET_SCHEDULER_Handle *s,
165 const struct GNUNET_CONFIGURATION_Handle *c)
167 struct GNUNET_FS_Uri *uri;
169 enum GNUNET_FS_DownloadOptions options;
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_DOWNLOAD_PARALLELISM,
208 GNUNET_FS_OPTIONS_END);
212 _("Could not initialize `%s' subsystem.\n"),
214 GNUNET_FS_uri_destroy (uri);
218 options = GNUNET_FS_DOWNLOAD_OPTION_NONE;
220 options |= GNUNET_FS_DOWNLOAD_OPTION_RECURSIVE;
221 dc = GNUNET_FS_download_start (ctx,
226 GNUNET_FS_uri_chk_get_file_size (uri),
231 GNUNET_FS_uri_destroy (uri);
234 GNUNET_FS_stop (ctx);
238 GNUNET_SCHEDULER_add_delayed (sched,
239 GNUNET_TIME_UNIT_FOREVER_REL,
246 * gnunet-download command line options
248 static 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 {'o', "output", "FILENAME",
256 gettext_noop ("write the file to FILENAME"),
257 1, &GNUNET_GETOPT_set_string, &filename},
258 {'p', "parallelism", "DOWNLOADS",
260 ("set the maximum number of parallel downloads that are allowed"),
261 1, &GNUNET_GETOPT_set_uint, ¶llelism},
262 {'R', "recursive", NULL,
263 gettext_noop ("download a GNUnet directory recursively"),
264 0, &GNUNET_GETOPT_set_one, &do_recursive},
265 {'V', "verbose", NULL,
266 gettext_noop ("be verbose (print progress information)"),
267 0, &GNUNET_GETOPT_set_one, &verbose},
268 GNUNET_GETOPT_OPTION_END
273 * The main function to download GNUnet.
275 * @param argc number of arguments from the command line
276 * @param argv command line arguments
277 * @return 0 ok, 1 on error
280 main (int argc, char *const *argv)
283 GNUNET_PROGRAM_run (argc,
287 ("Download files from GNUnet."),
288 options, &run, NULL)) ? ret : 1;
291 /* end of gnunet-download.c */