1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
|
/*
This file is part of GNUnet.
(C) 2001, 2002, 2004, 2005, 2006, 2007, 2009 Christian Grothoff (and other contributing authors)
GNUnet is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published
by the Free Software Foundation; either version 2, or (at your
option) any later version.
GNUnet is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU General Public License
along with GNUnet; see the file COPYING. If not, write to the
Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA.
*/
/**
* @file fs/gnunet-search.c
* @brief searching for files on GNUnet
* @author Christian Grothoff
* @author Krista Bennett
* @author James Blackwell
* @author Igor Wronsky
*
* TODO:
* - add many options (timeout, namespace search, etc.)
*/
#include "platform.h"
#include "gnunet_fs_service.h"
static int ret;
static const struct GNUNET_CONFIGURATION_Handle *cfg;
static struct GNUNET_FS_Handle *ctx;
static struct GNUNET_FS_SearchContext *sc;
static unsigned int anonymity = 1;
static int verbose;
static int
item_printer (void *cls,
EXTRACTOR_KeywordType type,
const char *data)
{
printf ("\t%20s: %s\n",
dgettext (LIBEXTRACTOR_GETTEXT_DOMAIN,
EXTRACTOR_getKeywordTypeAsString (type)),
data);
return GNUNET_OK;
}
/**
* Called by FS client to give information about the progress of an
* operation.
*
* @param cls closure
* @param info details about the event, specifying the event type
* and various bits about the event
* @return client-context (for the next progress call
* for this operation; should be set to NULL for
* SUSPEND and STOPPED events). The value returned
* will be passed to future callbacks in the respective
* field in the GNUNET_FS_ProgressInfo struct.
*/
static void *
progress_cb (void *cls,
const struct GNUNET_FS_ProgressInfo *info)
{
char *uri;
char *dotdot;
char *filename;
switch (info->status)
{
case GNUNET_FS_STATUS_SEARCH_START:
break;
case GNUNET_FS_STATUS_SEARCH_RESULT:
uri = GNUNET_FS_uri_to_string (info->value.search.specifics.result.uri);
printf ("%s:\n", uri);
filename =
GNUNET_CONTAINER_meta_data_get_by_type (info->value.search.specifics.result.meta,
EXTRACTOR_FILENAME);
if (filename != NULL)
{
while (NULL != (dotdot = strstr (filename, "..")))
dotdot[0] = dotdot[1] = '_';
printf ("gnunet-download -o \"%s\" %s\n",
filename,
uri);
}
else
printf ("gnunet-download %s\n", uri);
if (verbose)
GNUNET_CONTAINER_meta_data_get_contents (info->value.search.specifics.result.meta,
&item_printer,
NULL);
printf ("\n");
fflush(stdout);
GNUNET_free_non_null (filename);
GNUNET_free (uri);
break;
case GNUNET_FS_STATUS_SEARCH_UPDATE:
break;
case GNUNET_FS_STATUS_SEARCH_ERROR:
fprintf (stderr,
_("Error searching: %s.\n"),
info->value.search.specifics.error.message);
GNUNET_FS_search_stop (sc);
break;
case GNUNET_FS_STATUS_SEARCH_STOPPED:
GNUNET_FS_stop (ctx);
break;
default:
fprintf (stderr,
_("Unexpected status: %d\n"),
info->status);
break;
}
return NULL;
}
/**
* Main function that will be run by the scheduler.
*
* @param cls closure
* @param sched the scheduler to use
* @param args remaining command-line arguments
* @param cfgfile name of the configuration file used (for saving, can be NULL!)
* @param c configuration
*/
static void
run (void *cls,
struct GNUNET_SCHEDULER_Handle *sched,
char *const *args,
const char *cfgfile,
const struct GNUNET_CONFIGURATION_Handle *c)
{
struct GNUNET_FS_Uri *uri;
unsigned int argc;
argc = 0;
while (NULL != args[argc])
argc++;
uri = GNUNET_FS_uri_ksk_create_from_args (argc,
(const char **) args);
if (NULL == uri)
{
fprintf (stderr,
_("Could not create keyword URI from arguments.\n"));
ret = 1;
GNUNET_FS_uri_destroy (uri);
return;
}
cfg = c;
ctx = GNUNET_FS_start (sched,
cfg,
"gnunet-search",
&progress_cb,
NULL,
GNUNET_FS_FLAGS_NONE,
GNUNET_FS_OPTIONS_END);
if (NULL == ctx)
{
fprintf (stderr,
_("Could not initialize `%s' subsystem.\n"),
"FS");
GNUNET_FS_uri_destroy (uri);
GNUNET_FS_stop (ctx);
ret = 1;
return;
}
sc = GNUNET_FS_search_start (ctx,
uri,
anonymity,
NULL);
GNUNET_FS_uri_destroy (uri);
if (NULL == sc)
{
fprintf (stderr,
_("Could not start searching.\n"));
ret = 1;
return;
}
}
/**
* gnunet-search command line options
*/
static struct GNUNET_GETOPT_CommandLineOption options[] = {
{'a', "anonymity", "LEVEL",
gettext_noop ("set the desired LEVEL of receiver-anonymity"),
1, &GNUNET_GETOPT_set_uint, &anonymity},
// FIXME: options!
GNUNET_GETOPT_OPTION_END
};
/**
* The main function to search GNUnet.
*
* @param argc number of arguments from the command line
* @param argv command line arguments
* @return 0 ok, 1 on error
*/
int
main (int argc, char *const *argv)
{
return (GNUNET_OK ==
GNUNET_PROGRAM_run (argc,
argv,
"gnunet-search",
gettext_noop
("Search GNUnet."),
options, &run, NULL)) ? ret : 1;
}
/* end of gnunet-search.c */
|
