summaryrefslogtreecommitdiffstats
path: root/libtdenetwork/libgpgme-copy/gpgme/import.c
blob: 03967f745a72da352415604fccaf981d35c68a8b (plain)
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
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
/* import.c - Import a key.
   Copyright (C) 2000 Werner Koch (dd9jn)
   Copyright (C) 2001, 2002, 2003, 2004 g10 Code GmbH

   This file is part of GPGME.
 
   GPGME is free software; you can redistribute it and/or modify it
   under the terms of the GNU Lesser General Public License as
   published by the Free Software Foundation; either version 2.1 of
   the License, or (at your option) any later version.
   
   GPGME 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
   Lesser General Public License for more details.
   
   You should have received a copy of the GNU Lesser General Public
   License along with this program; if not, write to the Free Software
   Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
   02110-1301, USA.  */

#if HAVE_CONFIG_H
#include <config.h>
#endif
#include <stdlib.h>
#include <errno.h>
#include <string.h>

#include "gpgme.h"
#include "context.h"
#include "ops.h"


typedef struct
{
  struct _gpgme_op_import_result result;

  /* A pointer to the next pointer of the last import status in the
     list.  This makes appending new imports painless while preserving
     the order.  */
  gpgme_import_status_t *lastp;
} *op_data_t;


static void
release_op_data (void *hook)
{
  op_data_t opd = (op_data_t) hook;
  gpgme_import_status_t import = opd->result.imports;

  while (import)
    {
      gpgme_import_status_t next = import->next;
      free (import->fpr);
      free (import);
      import = next;
    }
}


gpgme_import_result_t
gpgme_op_import_result (gpgme_ctx_t ctx)
{
  void *hook;
  op_data_t opd;
  gpgme_error_t err;

  err = _gpgme_op_data_lookup (ctx, OPDATA_IMPORT, &hook, -1, NULL);
  opd = hook;
  if (err || !opd)
    return NULL;

  return &opd->result;
}


static gpgme_error_t
parse_import (char *args, gpgme_import_status_t *import_status, int problem)
{
  gpgme_import_status_t import;
  char *tail;
  long int nr;

  import = malloc (sizeof (*import));
  if (!import)
    return gpg_error_from_errno (errno);
  import->next = NULL;

  errno = 0;
  nr = strtol (args, &tail, 0);
  if (errno || args == tail || *tail != ' ')
    {
      /* The crypto backend does not behave.  */
      free (import);
      return gpg_error (GPG_ERR_INV_ENGINE);
    }
  args = tail;

  if (problem)
    {
      switch (nr)
	{
	case 0:
	case 4:
	default:
	  import->result = gpg_error (GPG_ERR_GENERAL);
	  break;

	case 1:
	  import->result = gpg_error (GPG_ERR_BAD_CERT);
	  break;

	case 2:
	  import->result = gpg_error (GPG_ERR_MISSING_CERT);
	  break;

	case 3:
	  import->result = gpg_error (GPG_ERR_BAD_CERT_CHAIN);
	  break;
	}
      import->status = 0;
    }
  else
    {
      import->result = gpg_error (GPG_ERR_NO_ERROR);
      import->status = nr;
    }

  while (*args == ' ')
    args++;
  tail = strchr (args, ' ');
  if (tail)
    *tail = '\0';

  import->fpr = strdup (args);
  if (!import->fpr)
    {
      int saved_errno = errno;
      free (import);
      return gpg_error_from_errno (saved_errno);
    }

  *import_status = import;
  return 0;
}



gpgme_error_t
parse_import_res (char *args, gpgme_import_result_t result)
{
  char *tail;

  errno = 0;

#define PARSE_NEXT(x)					\
  (x) = strtol (args, &tail, 0);			\
  if (errno || args == tail || *tail != ' ')		\
    /* The crypto backend does not behave.  */		\
    return gpg_error (GPG_ERR_INV_ENGINE);		\
  args = tail;

  PARSE_NEXT (result->considered);
  PARSE_NEXT (result->no_user_id);
  PARSE_NEXT (result->imported);
  PARSE_NEXT (result->imported_rsa);
  PARSE_NEXT (result->unchanged);
  PARSE_NEXT (result->new_user_ids);
  PARSE_NEXT (result->new_sub_keys);
  PARSE_NEXT (result->new_signatures);
  PARSE_NEXT (result->new_revocations);
  PARSE_NEXT (result->secret_read);
  PARSE_NEXT (result->secret_imported);
  PARSE_NEXT (result->secret_unchanged);
  PARSE_NEXT (result->skipped_new_keys);
  PARSE_NEXT (result->not_imported);

  return 0;
}


static gpgme_error_t
import_status_handler (void *priv, gpgme_status_code_t code, char *args)
{
  gpgme_ctx_t ctx = (gpgme_ctx_t) priv;
  gpgme_error_t err;
  void *hook;
  op_data_t opd;

  err = _gpgme_op_data_lookup (ctx, OPDATA_IMPORT, &hook, -1, NULL);
  opd = hook;
  if (err)
    return err;

  switch (code)
    {
    case GPGME_STATUS_IMPORT_OK:
    case GPGME_STATUS_IMPORT_PROBLEM:
      err = parse_import (args, opd->lastp,
			  code == GPGME_STATUS_IMPORT_OK ? 0 : 1);
      if (err)
	return err;

      opd->lastp = &(*opd->lastp)->next;
      break;

    case GPGME_STATUS_IMPORT_RES:
      err = parse_import_res (args, &opd->result);
      break;

    default:
      break;
    }
  return 0;
}


static gpgme_error_t
_gpgme_op_import_start (gpgme_ctx_t ctx, int synchronous, gpgme_data_t keydata)
{
  gpgme_error_t err;
  void *hook;
  op_data_t opd;

  err = _gpgme_op_reset (ctx, synchronous);
  if (err)
    return err;

  err = _gpgme_op_data_lookup (ctx, OPDATA_IMPORT, &hook,
			       sizeof (*opd), release_op_data);
  opd = hook;
  if (err)
    return err;
  opd->lastp = &opd->result.imports;

  if (!keydata)
    return gpg_error (GPG_ERR_NO_DATA);

  _gpgme_engine_set_status_handler (ctx->engine, import_status_handler, ctx);

  return _gpgme_engine_op_import (ctx->engine, keydata);
}


gpgme_error_t
gpgme_op_import_start (gpgme_ctx_t ctx, gpgme_data_t keydata)
{
  return _gpgme_op_import_start (ctx, 0, keydata);
}


/* Import the key in KEYDATA into the keyring.  */
gpgme_error_t
gpgme_op_import (gpgme_ctx_t ctx, gpgme_data_t keydata)
{
  gpgme_error_t err = _gpgme_op_import_start (ctx, 1, keydata);
  if (!err)
    err = _gpgme_wait_one (ctx);
  return err;
}


gpgme_error_t
gpgme_op_import_ext (gpgme_ctx_t ctx, gpgme_data_t keydata, int *nr)
{
  gpgme_error_t err = gpgme_op_import (ctx, keydata);
  if (!err && nr)
    {
      gpgme_import_result_t result = gpgme_op_import_result (ctx);
      *nr = result->considered;
    }
  return err;
}