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
228
229
230
231
|
/*
This file is part of GNUnet.
(C) 2010, 2011 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 3, 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/fs_misc.c
* @brief misc. functions related to file-sharing in general
* @author Christian Grothoff
*/
#include "platform.h"
#include "gnunet_constants.h"
#include "gnunet_fs_service.h"
#include "fs_api.h"
/**
* Suggest a filename based on given metadata.
*
* @param md given meta data
* @return NULL if meta data is useless for suggesting a filename
*/
char *
GNUNET_FS_meta_data_suggest_filename (const struct GNUNET_CONTAINER_MetaData
*md)
{
static const char *mimeMap[][2] = {
{"application/bz2", ".bz2"},
{"application/gnunet-directory", ".gnd"},
{"application/java", ".class"},
{"application/msword", ".doc"},
{"application/ogg", ".ogg"},
{"application/pdf", ".pdf"},
{"application/pgp-keys", ".key"},
{"application/pgp-signature", ".pgp"},
{"application/postscript", ".ps"},
{"application/rar", ".rar"},
{"application/rtf", ".rtf"},
{"application/xml", ".xml"},
{"application/x-debian-package", ".deb"},
{"application/x-dvi", ".dvi"},
{"applixation/x-flac", ".flac"},
{"applixation/x-gzip", ".gz"},
{"application/x-java-archive", ".jar"},
{"application/x-java-vm", ".class"},
{"application/x-python-code", ".pyc"},
{"application/x-redhat-package-manager", ".rpm"},
{"application/x-rpm", ".rpm"},
{"application/x-tar", ".tar"},
{"application/x-tex-pk", ".pk"},
{"application/x-texinfo", ".texinfo"},
{"application/x-xcf", ".xcf"},
{"application/x-xfig", ".xfig"},
{"application/zip", ".zip"},
{"audio/midi", ".midi"},
{"audio/mpeg", ".mp3"},
{"audio/real", ".rm"},
{"audio/x-wav", ".wav"},
{"image/gif", ".gif"},
{"image/jpeg", ".jpg"},
{"image/pcx", ".pcx"},
{"image/png", ".png"},
{"image/tiff", ".tiff"},
{"image/x-ms-bmp", ".bmp"},
{"image/x-xpixmap", ".xpm"},
{"text/css", ".css"},
{"text/html", ".html"},
{"text/plain", ".txt"},
{"text/rtf", ".rtf"},
{"text/x-c++hdr", ".h++"},
{"text/x-c++src", ".c++"},
{"text/x-chdr", ".h"},
{"text/x-csrc", ".c"},
{"text/x-java", ".java"},
{"text/x-moc", ".moc"},
{"text/x-pascal", ".pas"},
{"text/x-perl", ".pl"},
{"text/x-python", ".py"},
{"text/x-tex", ".tex"},
{"video/avi", ".avi"},
{"video/mpeg", ".mpeg"},
{"video/quicktime", ".qt"},
{"video/real", ".rm"},
{"video/x-msvideo", ".avi"},
{NULL, NULL},
};
char *ret;
unsigned int i;
char *mime;
char *base;
const char *ext;
ret =
GNUNET_CONTAINER_meta_data_get_by_type (md,
EXTRACTOR_METATYPE_GNUNET_ORIGINAL_FILENAME);
if (ret != NULL)
return ret;
ext = NULL;
mime =
GNUNET_CONTAINER_meta_data_get_by_type (md, EXTRACTOR_METATYPE_MIMETYPE);
if (mime != NULL)
{
i = 0;
while ((mimeMap[i][0] != NULL) && (0 != strcmp (mime, mimeMap[i][0])))
i++;
if (mimeMap[i][1] == NULL)
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG | GNUNET_ERROR_TYPE_BULK,
_("Did not find mime type `%s' in extension list.\n"), mime);
else
ext = mimeMap[i][1];
GNUNET_free (mime);
}
base =
GNUNET_CONTAINER_meta_data_get_first_by_types (md,
EXTRACTOR_METATYPE_TITLE,
EXTRACTOR_METATYPE_BOOK_TITLE,
EXTRACTOR_METATYPE_ORIGINAL_TITLE,
EXTRACTOR_METATYPE_PACKAGE_NAME,
EXTRACTOR_METATYPE_URL,
EXTRACTOR_METATYPE_URI,
EXTRACTOR_METATYPE_DESCRIPTION,
EXTRACTOR_METATYPE_ISRC,
EXTRACTOR_METATYPE_JOURNAL_NAME,
EXTRACTOR_METATYPE_AUTHOR_NAME,
EXTRACTOR_METATYPE_SUBJECT,
EXTRACTOR_METATYPE_ALBUM,
EXTRACTOR_METATYPE_ARTIST,
EXTRACTOR_METATYPE_KEYWORDS,
EXTRACTOR_METATYPE_COMMENT,
EXTRACTOR_METATYPE_UNKNOWN,
-1);
if ((base == NULL) && (ext == NULL))
return NULL;
if (base == NULL)
return GNUNET_strdup (ext);
if (ext == NULL)
return base;
GNUNET_asprintf (&ret, "%s%s", base, ext);
GNUNET_free (base);
return ret;
}
/**
* Return the current year (i.e. '2011').
*/
unsigned int
GNUNET_FS_get_current_year ()
{
time_t tp;
struct tm *t;
tp = time (NULL);
t = gmtime (&tp);
if (t == NULL)
return 0;
return t->tm_year + 1900;
}
/**
* Convert a year to an expiration time of January 1st of that year.
*
* @param year a year (after 1970, please ;-)).
* @return absolute time for January 1st of that year.
*/
struct GNUNET_TIME_Absolute
GNUNET_FS_year_to_time (unsigned int year)
{
struct GNUNET_TIME_Absolute ret;
time_t tp;
struct tm t;
memset (&t, 0, sizeof (t));
if (year < 1900)
{
GNUNET_break (0);
return GNUNET_TIME_absolute_get (); /* now */
}
t.tm_year = year - 1900;
t.tm_mday = 1;
t.tm_mon = 1;
t.tm_wday = 1;
t.tm_yday = 1;
tp = mktime (&t);
GNUNET_break (tp != (time_t) - 1);
ret.abs_value = tp * 1000LL; /* seconds to ms */
return ret;
}
/**
* Convert an expiration time to the respective year (rounds)
*
* @param at absolute time
* @return year a year (after 1970), 0 on error
*/
unsigned int
GNUNET_FS_time_to_year (struct GNUNET_TIME_Absolute at)
{
struct tm *t;
time_t tp;
tp = at.abs_value / 1000; /* ms to seconds */
t = gmtime (&tp);
if (t == NULL)
return 0;
return t->tm_year + 1900;
}
/* end of fs_misc.c */
|
