summaryrefslogtreecommitdiffstats
path: root/libkdenetwork/libgpgme-copy/gpgme/genkey.c
blob: daaeb284814c13051c1785811e1664a1bf64a2e5 (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
/* genkey.c - Key generation.
   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 <string.h>
#include <errno.h>

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


typedef struct
{
  struct _gpgme_op_genkey_result result;

  /* The key parameters passed to the crypto engine.  */
  gpgme_data_t key_parameter;
} *op_data_t;


static void
release_op_data (void *hook)
{
  op_data_t opd = (op_data_t) hook;
  
  if (opd->result.fpr)
    free (opd->result.fpr);
  if (opd->key_parameter)
    gpgme_data_release (opd->key_parameter);
}


gpgme_genkey_result_t
gpgme_op_genkey_result (gpgme_ctx_t ctx)
{
  void *hook;
  op_data_t opd;
  gpgme_error_t err;

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

  return &opd->result;
}


static gpgme_error_t
genkey_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;

  /* Pipe the status code through the progress status handler.  */
  err = _gpgme_progress_status_handler (ctx, code, args);
  if (err)
    return err;

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

  switch (code)
    {
    case GPGME_STATUS_KEY_CREATED:
      if (args && *args)
	{
	  if (*args == 'B' || *args == 'P')
	    opd->result.primary = 1;
	  if (*args == 'B' || *args == 'S')
	    opd->result.sub = 1;
	  if (args[1] == ' ')
	    {
	      if (opd->result.fpr)
		free (opd->result.fpr);
	      opd->result.fpr = strdup (&args[2]);
	      if (!opd->result.fpr)
		return gpg_error_from_errno (errno);
	    }
	}
      break;

    case GPGME_STATUS_EOF:
      /* FIXME: Should return some more useful error value.  */
      if (!opd->result.primary && !opd->result.sub)
	return gpg_error (GPG_ERR_GENERAL);
      break;

    default:
      break;
    }
  return 0;
}


static gpgme_error_t
get_key_parameter (const char *parms, gpgme_data_t *key_parameter)
{
  const char *content;
  const char *attrib;
  const char *endtag;

  /* Extract the key parameter from the XML structure.  */
  parms = strstr (parms, "<GnupgKeyParms ");
  if (!parms)
    return gpg_error (GPG_ERR_INV_VALUE);

  content = strchr (parms, '>');
  if (!content)
    return gpg_error (GPG_ERR_INV_VALUE);
  content++;

  attrib = strstr (parms, "format=\"internal\"");
  if (!attrib || attrib >= content)
    return gpg_error (GPG_ERR_INV_VALUE);

  endtag = strstr (content, "</GnupgKeyParms>");
  /* FIXME: Check that there are no control statements inside.  */
  while (content[0] == '\n'
	 || (content[0] == '\r' && content[1] == '\n'))
    content++;

  return gpgme_data_new_from_mem (key_parameter, content,
				  endtag - content, 1);
}


static gpgme_error_t
genkey_start (gpgme_ctx_t ctx, int synchronous, const char *parms,
	      gpgme_data_t pubkey, gpgme_data_t seckey)
{
  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_GENKEY, &hook,
			       sizeof (*opd), release_op_data);
  opd = hook;
  if (err)
    return err;

  err = get_key_parameter (parms, &opd->key_parameter);
  if (err)
    return err;

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

  return _gpgme_engine_op_genkey (ctx->engine, opd->key_parameter,
				  ctx->use_armor, pubkey, seckey);
}


/* Generate a new keypair and add it to the keyring.  PUBKEY and
   SECKEY should be null for now.  PARMS specifies what keys should be
   generated.  */
gpgme_error_t
gpgme_op_genkey_start (gpgme_ctx_t ctx, const char *parms,
		       gpgme_data_t pubkey, gpgme_data_t seckey)
{
  return genkey_start (ctx, 0, parms, pubkey, seckey);
}


/* Generate a new keypair and add it to the keyring.  PUBKEY and
   SECKEY should be null for now.  PARMS specifies what keys should be
   generated.  */
gpgme_error_t
gpgme_op_genkey (gpgme_ctx_t ctx, const char *parms, gpgme_data_t pubkey,
		 gpgme_data_t seckey)
{
  gpgme_error_t err;

  err = genkey_start (ctx, 1, parms, pubkey, seckey);
  if (!err)
    err = _gpgme_wait_one (ctx);
  return err;
}