vb@1513
|
1 |
// This file is under GNU General Public License 3.0
|
vb@1513
|
2 |
// see LICENSE.txt
|
vb@1513
|
3 |
|
vb@125
|
4 |
#include "pEp_internal.h"
|
vb@37
|
5 |
#include "message_api.h"
|
vb@37
|
6 |
|
vb@130
|
7 |
#include "platform.h"
|
vb@220
|
8 |
#include "mime.h"
|
vb@952
|
9 |
#include "sync_fsm.h"
|
vb@85
|
10 |
|
vb@37
|
11 |
#include <assert.h>
|
vb@37
|
12 |
#include <string.h>
|
vb@39
|
13 |
#include <stdlib.h>
|
vb@39
|
14 |
|
vb@926
|
15 |
|
vb@951
|
16 |
#ifndef _MIN
|
vb@951
|
17 |
#define _MIN(A, B) ((B) > (A) ? (A) : (B))
|
vb@190
|
18 |
#endif
|
vb@951
|
19 |
#ifndef _MAX
|
vb@951
|
20 |
#define _MAX(A, B) ((B) > (A) ? (B) : (A))
|
vb@300
|
21 |
#endif
|
vb@190
|
22 |
|
vb@235
|
23 |
|
vb@235
|
24 |
static bool string_equality(const char *s1, const char *s2)
|
vb@235
|
25 |
{
|
vb@235
|
26 |
if (s1 == NULL || s2 == NULL)
|
vb@235
|
27 |
return false;
|
vb@235
|
28 |
|
vb@235
|
29 |
assert(s1 && s2);
|
vb@235
|
30 |
|
vb@235
|
31 |
return strcmp(s1, s2) == 0;
|
vb@235
|
32 |
}
|
vb@235
|
33 |
|
vb@235
|
34 |
static bool is_mime_type(const bloblist_t *bl, const char *mt)
|
vb@235
|
35 |
{
|
vb@235
|
36 |
assert(mt);
|
vb@235
|
37 |
|
vb@235
|
38 |
return bl && string_equality(bl->mime_type, mt);
|
vb@235
|
39 |
}
|
vb@235
|
40 |
|
krista@854
|
41 |
//
|
krista@854
|
42 |
// This function presumes the file ending is a proper substring of the
|
krista@854
|
43 |
// filename (i.e. if bl->filename is "a.pgp" and fe is ".pgp", it will
|
krista@854
|
44 |
// return true, but if bl->filename is ".pgp" and fe is ".pgp", it will
|
krista@854
|
45 |
// return false. This is desired behaviour.
|
krista@854
|
46 |
//
|
vb@235
|
47 |
static bool is_fileending(const bloblist_t *bl, const char *fe)
|
vb@235
|
48 |
{
|
vb@235
|
49 |
assert(fe);
|
krista@1427
|
50 |
|
krista@853
|
51 |
if (bl == NULL || bl->filename == NULL || fe == NULL)
|
vb@235
|
52 |
return false;
|
vb@235
|
53 |
|
vb@235
|
54 |
assert(bl && bl->filename);
|
vb@235
|
55 |
|
vb@235
|
56 |
size_t fe_len = strlen(fe);
|
vb@235
|
57 |
size_t fn_len = strlen(bl->filename);
|
vb@235
|
58 |
|
vb@235
|
59 |
if (fn_len <= fe_len)
|
vb@235
|
60 |
return false;
|
vb@235
|
61 |
|
vb@235
|
62 |
assert(fn_len > fe_len);
|
vb@235
|
63 |
|
vb@235
|
64 |
return strcmp(bl->filename + (fn_len - fe_len), fe) == 0;
|
vb@235
|
65 |
}
|
vb@235
|
66 |
|
vb@952
|
67 |
void add_opt_field(message *msg, const char *name, const char *value)
|
vb@284
|
68 |
{
|
vb@952
|
69 |
assert(msg && name && value);
|
vb@284
|
70 |
|
vb@284
|
71 |
if (msg && name && value) {
|
vb@284
|
72 |
stringpair_t *pair = new_stringpair(name, value);
|
vb@284
|
73 |
if (pair == NULL)
|
vb@284
|
74 |
return;
|
vb@284
|
75 |
|
vb@284
|
76 |
stringpair_list_t *field = stringpair_list_add(msg->opt_fields, pair);
|
vb@284
|
77 |
if (field == NULL)
|
Edouard@833
|
78 |
{
|
Edouard@833
|
79 |
free_stringpair(pair);
|
vb@284
|
80 |
return;
|
Edouard@833
|
81 |
}
|
vb@284
|
82 |
|
vb@284
|
83 |
if (msg->opt_fields == NULL)
|
vb@284
|
84 |
msg->opt_fields = field;
|
vb@284
|
85 |
}
|
vb@284
|
86 |
}
|
vb@284
|
87 |
|
vb@83
|
88 |
static char * combine_short_and_long(const char *shortmsg, const char *longmsg)
|
vb@62
|
89 |
{
|
vb@83
|
90 |
assert(shortmsg);
|
vb@83
|
91 |
assert(strcmp(shortmsg, "pEp") != 0);
|
vb@855
|
92 |
|
vb@857
|
93 |
if (!shortmsg || strcmp(shortmsg, "pEp") == 0) {
|
vb@857
|
94 |
if (!longmsg) {
|
vb@857
|
95 |
return NULL;
|
vb@857
|
96 |
}
|
vb@857
|
97 |
else {
|
vb@857
|
98 |
char *result = strdup(longmsg);
|
vb@857
|
99 |
assert(result);
|
vb@857
|
100 |
return result;
|
vb@857
|
101 |
}
|
vb@857
|
102 |
}
|
krista@1427
|
103 |
|
vb@83
|
104 |
if (longmsg == NULL)
|
vb@63
|
105 |
longmsg = "";
|
vb@63
|
106 |
|
krista@935
|
107 |
const char * const subject = "Subject: ";
|
krista@935
|
108 |
const size_t SUBJ_LEN = 9;
|
krista@935
|
109 |
const char * const newlines = "\n\n";
|
krista@935
|
110 |
const size_t NL_LEN = 2;
|
krista@935
|
111 |
|
roker@1559
|
112 |
const size_t bufsize = SUBJ_LEN + strlen(shortmsg) + NL_LEN + strlen(longmsg) + 1;
|
roker@1559
|
113 |
char * ptext = calloc(1, bufsize);
|
vb@109
|
114 |
assert(ptext);
|
vb@62
|
115 |
if (ptext == NULL)
|
vb@62
|
116 |
return NULL;
|
vb@62
|
117 |
|
krista@935
|
118 |
strlcpy(ptext, subject, bufsize);
|
krista@918
|
119 |
strlcat(ptext, shortmsg, bufsize);
|
krista@935
|
120 |
strlcat(ptext, newlines, bufsize);
|
krista@918
|
121 |
strlcat(ptext, longmsg, bufsize);
|
vb@62
|
122 |
|
vb@62
|
123 |
return ptext;
|
vb@62
|
124 |
}
|
vb@44
|
125 |
|
krista@853
|
126 |
static int separate_short_and_long(const char *src, char **shortmsg, char **longmsg)
|
vb@82
|
127 |
{
|
vb@82
|
128 |
char *_shortmsg = NULL;
|
vb@82
|
129 |
char *_longmsg = NULL;
|
vb@82
|
130 |
|
vb@82
|
131 |
assert(src);
|
vb@82
|
132 |
assert(shortmsg);
|
vb@82
|
133 |
assert(longmsg);
|
krista@1427
|
134 |
|
krista@853
|
135 |
if (src == NULL || shortmsg == NULL || longmsg == NULL)
|
krista@853
|
136 |
return -1;
|
vb@82
|
137 |
|
vb@82
|
138 |
*shortmsg = NULL;
|
vb@82
|
139 |
*longmsg = NULL;
|
vb@82
|
140 |
|
vb@85
|
141 |
if (strncasecmp(src, "subject: ", 9) == 0) {
|
vb@82
|
142 |
char *line_end = strchr(src, '\n');
|
vb@311
|
143 |
|
vb@82
|
144 |
if (line_end == NULL) {
|
vb@82
|
145 |
_shortmsg = strdup(src + 9);
|
vb@469
|
146 |
assert(_shortmsg);
|
vb@82
|
147 |
if (_shortmsg == NULL)
|
vb@82
|
148 |
goto enomem;
|
vb@82
|
149 |
// _longmsg = NULL;
|
vb@82
|
150 |
}
|
vb@82
|
151 |
else {
|
vb@82
|
152 |
size_t n = line_end - src;
|
vb@166
|
153 |
|
vb@82
|
154 |
if (*(line_end - 1) == '\r')
|
vb@166
|
155 |
_shortmsg = strndup(src + 9, n - 10);
|
vb@82
|
156 |
else
|
vb@166
|
157 |
_shortmsg = strndup(src + 9, n - 9);
|
vb@469
|
158 |
assert(_shortmsg);
|
vb@82
|
159 |
if (_shortmsg == NULL)
|
vb@82
|
160 |
goto enomem;
|
vb@166
|
161 |
|
vb@166
|
162 |
while (*(src + n) && (*(src + n) == '\n' || *(src + n) == '\r'))
|
vb@166
|
163 |
++n;
|
vb@166
|
164 |
|
vb@166
|
165 |
if (*(src + n)) {
|
vb@166
|
166 |
_longmsg = strdup(src + n);
|
vb@469
|
167 |
assert(_longmsg);
|
vb@166
|
168 |
if (_longmsg == NULL)
|
vb@166
|
169 |
goto enomem;
|
vb@166
|
170 |
}
|
vb@82
|
171 |
}
|
vb@82
|
172 |
}
|
vb@82
|
173 |
else {
|
vb@113
|
174 |
_shortmsg = strdup("");
|
vb@469
|
175 |
assert(_shortmsg);
|
vb@82
|
176 |
if (_shortmsg == NULL)
|
vb@82
|
177 |
goto enomem;
|
vb@82
|
178 |
_longmsg = strdup(src);
|
vb@469
|
179 |
assert(_longmsg);
|
vb@82
|
180 |
if (_longmsg == NULL)
|
vb@82
|
181 |
goto enomem;
|
vb@82
|
182 |
}
|
vb@311
|
183 |
|
vb@82
|
184 |
*shortmsg = _shortmsg;
|
vb@82
|
185 |
*longmsg = _longmsg;
|
vb@82
|
186 |
|
vb@82
|
187 |
return 0;
|
vb@82
|
188 |
|
vb@82
|
189 |
enomem:
|
vb@82
|
190 |
free(_shortmsg);
|
vb@82
|
191 |
free(_longmsg);
|
vb@82
|
192 |
|
vb@82
|
193 |
return -1;
|
vb@82
|
194 |
}
|
vb@82
|
195 |
|
vb@113
|
196 |
static PEP_STATUS copy_fields(message *dst, const message *src)
|
vb@113
|
197 |
{
|
vb@164
|
198 |
assert(dst);
|
vb@164
|
199 |
assert(src);
|
vb@164
|
200 |
|
Edouard@840
|
201 |
if(!(dst && src))
|
Edouard@840
|
202 |
return PEP_ILLEGAL_VALUE;
|
Edouard@840
|
203 |
|
vb@113
|
204 |
free_timestamp(dst->sent);
|
vb@113
|
205 |
dst->sent = NULL;
|
vb@113
|
206 |
if (src->sent) {
|
vb@113
|
207 |
dst->sent = timestamp_dup(src->sent);
|
vb@113
|
208 |
if (dst->sent == NULL)
|
vb@113
|
209 |
return PEP_OUT_OF_MEMORY;
|
vb@113
|
210 |
}
|
vb@113
|
211 |
|
vb@113
|
212 |
free_timestamp(dst->recv);
|
vb@113
|
213 |
dst->recv = NULL;
|
vb@113
|
214 |
if (src->recv) {
|
vb@113
|
215 |
dst->recv = timestamp_dup(src->recv);
|
vb@113
|
216 |
if (dst->recv == NULL)
|
vb@113
|
217 |
return PEP_OUT_OF_MEMORY;
|
vb@113
|
218 |
}
|
vb@113
|
219 |
|
vb@113
|
220 |
free_identity(dst->from);
|
vb@113
|
221 |
dst->from = NULL;
|
vb@113
|
222 |
if (src->from) {
|
vb@113
|
223 |
dst->from = identity_dup(src->from);
|
vb@113
|
224 |
if (dst->from == NULL)
|
vb@113
|
225 |
return PEP_OUT_OF_MEMORY;
|
vb@113
|
226 |
}
|
vb@113
|
227 |
|
vb@113
|
228 |
free_identity_list(dst->to);
|
vb@113
|
229 |
dst->to = NULL;
|
vb@274
|
230 |
if (src->to && src->to->ident) {
|
vb@113
|
231 |
dst->to = identity_list_dup(src->to);
|
vb@113
|
232 |
if (dst->to == NULL)
|
vb@113
|
233 |
return PEP_OUT_OF_MEMORY;
|
vb@113
|
234 |
}
|
vb@113
|
235 |
|
vb@113
|
236 |
free_identity(dst->recv_by);
|
vb@113
|
237 |
dst->recv_by = NULL;
|
vb@113
|
238 |
if (src->recv_by) {
|
vb@113
|
239 |
dst->recv_by = identity_dup(src->recv_by);
|
vb@113
|
240 |
if (dst->recv_by == NULL)
|
vb@113
|
241 |
return PEP_OUT_OF_MEMORY;
|
vb@113
|
242 |
}
|
vb@113
|
243 |
|
vb@113
|
244 |
free_identity_list(dst->cc);
|
vb@113
|
245 |
dst->cc = NULL;
|
vb@274
|
246 |
if (src->cc && src->cc->ident) {
|
vb@113
|
247 |
dst->cc = identity_list_dup(src->cc);
|
vb@113
|
248 |
if (dst->cc == NULL)
|
vb@113
|
249 |
return PEP_OUT_OF_MEMORY;
|
vb@113
|
250 |
}
|
vb@113
|
251 |
|
vb@113
|
252 |
free_identity_list(dst->bcc);
|
vb@113
|
253 |
dst->bcc = NULL;
|
vb@274
|
254 |
if (src->bcc && src->bcc->ident) {
|
vb@113
|
255 |
dst->bcc = identity_list_dup(src->bcc);
|
vb@113
|
256 |
if (dst->bcc == NULL)
|
vb@113
|
257 |
return PEP_OUT_OF_MEMORY;
|
vb@113
|
258 |
}
|
vb@113
|
259 |
|
vb@113
|
260 |
free_identity_list(dst->reply_to);
|
vb@113
|
261 |
dst->reply_to = NULL;
|
vb@274
|
262 |
if (src->reply_to && src->reply_to->ident) {
|
vb@113
|
263 |
dst->reply_to = identity_list_dup(src->reply_to);
|
vb@113
|
264 |
if (dst->reply_to == NULL)
|
vb@113
|
265 |
return PEP_OUT_OF_MEMORY;
|
vb@113
|
266 |
}
|
vb@113
|
267 |
|
vb@113
|
268 |
free_stringlist(dst->in_reply_to);
|
vb@113
|
269 |
dst->in_reply_to = NULL;
|
vb@274
|
270 |
if (src->in_reply_to && src->in_reply_to->value) {
|
vb@113
|
271 |
dst->in_reply_to = stringlist_dup(src->in_reply_to);
|
vb@113
|
272 |
if (dst->in_reply_to == NULL)
|
vb@113
|
273 |
return PEP_OUT_OF_MEMORY;
|
vb@113
|
274 |
}
|
vb@113
|
275 |
|
vb@113
|
276 |
free_stringlist(dst->references);
|
vb@113
|
277 |
dst->references = NULL;
|
vb@113
|
278 |
if (src->references) {
|
vb@113
|
279 |
dst->references = stringlist_dup(src->references);
|
vb@113
|
280 |
if (dst->references == NULL)
|
vb@113
|
281 |
return PEP_OUT_OF_MEMORY;
|
vb@113
|
282 |
}
|
vb@113
|
283 |
|
vb@113
|
284 |
free_stringlist(dst->keywords);
|
vb@113
|
285 |
dst->keywords = NULL;
|
vb@274
|
286 |
if (src->keywords && src->keywords->value) {
|
vb@113
|
287 |
dst->keywords = stringlist_dup(src->keywords);
|
vb@113
|
288 |
if (dst->keywords == NULL)
|
vb@113
|
289 |
return PEP_OUT_OF_MEMORY;
|
vb@113
|
290 |
}
|
vb@113
|
291 |
|
vb@113
|
292 |
free(dst->comments);
|
vb@113
|
293 |
dst->comments = NULL;
|
vb@113
|
294 |
if (src->comments) {
|
vb@113
|
295 |
dst->comments = strdup(src->comments);
|
vb@113
|
296 |
assert(dst->comments);
|
vb@113
|
297 |
if (dst->comments == NULL)
|
vb@113
|
298 |
return PEP_OUT_OF_MEMORY;
|
vb@113
|
299 |
}
|
vb@113
|
300 |
|
vb@1092
|
301 |
free_stringpair_list(dst->opt_fields);
|
vb@1092
|
302 |
dst->opt_fields = NULL;
|
vb@1092
|
303 |
if (src->opt_fields) {
|
vb@1092
|
304 |
dst->opt_fields = stringpair_list_dup(src->opt_fields);
|
vb@1092
|
305 |
if (dst->opt_fields == NULL)
|
vb@1092
|
306 |
return PEP_OUT_OF_MEMORY;
|
vb@1092
|
307 |
}
|
vb@1092
|
308 |
|
vb@113
|
309 |
return PEP_STATUS_OK;
|
vb@113
|
310 |
}
|
vb@113
|
311 |
|
vb@81
|
312 |
static message * clone_to_empty_message(const message * src)
|
vb@80
|
313 |
{
|
vb@113
|
314 |
PEP_STATUS status;
|
vb@80
|
315 |
message * msg = NULL;
|
vb@80
|
316 |
|
vb@81
|
317 |
assert(src);
|
krista@853
|
318 |
if (src == NULL)
|
krista@853
|
319 |
return NULL;
|
vb@81
|
320 |
|
vb@113
|
321 |
msg = calloc(1, sizeof(message));
|
vb@113
|
322 |
assert(msg);
|
vb@80
|
323 |
if (msg == NULL)
|
vb@80
|
324 |
goto enomem;
|
vb@80
|
325 |
|
vb@82
|
326 |
msg->dir = src->dir;
|
vb@82
|
327 |
|
vb@113
|
328 |
status = copy_fields(msg, src);
|
vb@113
|
329 |
if (status != PEP_STATUS_OK)
|
vb@113
|
330 |
goto enomem;
|
vb@81
|
331 |
|
vb@80
|
332 |
return msg;
|
vb@80
|
333 |
|
vb@80
|
334 |
enomem:
|
vb@113
|
335 |
free_message(msg);
|
vb@80
|
336 |
return NULL;
|
vb@80
|
337 |
}
|
vb@80
|
338 |
|
vb@260
|
339 |
static PEP_STATUS encrypt_PGP_MIME(
|
vb@311
|
340 |
PEP_SESSION session,
|
vb@311
|
341 |
const message *src,
|
vb@311
|
342 |
stringlist_t *keys,
|
krista@1639
|
343 |
message *dst,
|
krista@1639
|
344 |
PEP_encrypt_flags_t flags
|
vb@260
|
345 |
)
|
vb@260
|
346 |
{
|
vb@260
|
347 |
PEP_STATUS status = PEP_STATUS_OK;
|
vb@260
|
348 |
bool free_ptext = false;
|
vb@468
|
349 |
char *ptext = NULL;
|
Edouard@882
|
350 |
char *ctext = NULL;
|
vb@260
|
351 |
char *mimetext = NULL;
|
vb@260
|
352 |
size_t csize;
|
vb@260
|
353 |
assert(dst->longmsg == NULL);
|
vb@260
|
354 |
dst->enc_format = PEP_enc_PGP_MIME;
|
vb@260
|
355 |
|
vb@260
|
356 |
if (src->shortmsg && strcmp(src->shortmsg, "pEp") != 0) {
|
vb@466
|
357 |
if (session->unencrypted_subject) {
|
vb@466
|
358 |
dst->shortmsg = strdup(src->shortmsg);
|
vb@469
|
359 |
assert(dst->shortmsg);
|
vb@466
|
360 |
if (dst->shortmsg == NULL)
|
vb@466
|
361 |
goto enomem;
|
vb@466
|
362 |
ptext = src->longmsg;
|
vb@466
|
363 |
}
|
vb@466
|
364 |
else {
|
vb@466
|
365 |
ptext = combine_short_and_long(src->shortmsg, src->longmsg);
|
vb@466
|
366 |
if (ptext == NULL)
|
vb@466
|
367 |
goto enomem;
|
vb@466
|
368 |
free_ptext = true;
|
vb@466
|
369 |
}
|
vb@260
|
370 |
}
|
vb@260
|
371 |
else if (src->longmsg) {
|
vb@260
|
372 |
ptext = src->longmsg;
|
vb@260
|
373 |
}
|
vb@260
|
374 |
else {
|
vb@260
|
375 |
ptext = "pEp";
|
vb@260
|
376 |
}
|
vb@260
|
377 |
|
vb@260
|
378 |
message *_src = calloc(1, sizeof(message));
|
vb@260
|
379 |
assert(_src);
|
vb@260
|
380 |
if (_src == NULL)
|
vb@260
|
381 |
goto enomem;
|
vb@260
|
382 |
_src->longmsg = ptext;
|
vb@260
|
383 |
_src->longmsg_formatted = src->longmsg_formatted;
|
vb@260
|
384 |
_src->attachments = src->attachments;
|
vb@260
|
385 |
_src->enc_format = PEP_enc_none;
|
vb@260
|
386 |
status = mime_encode_message(_src, true, &mimetext);
|
vb@260
|
387 |
assert(status == PEP_STATUS_OK);
|
krista@853
|
388 |
if (status != PEP_STATUS_OK)
|
krista@853
|
389 |
goto pep_error;
|
krista@1427
|
390 |
|
Edouard@371
|
391 |
if (free_ptext){
|
vb@260
|
392 |
free(ptext);
|
Edouard@371
|
393 |
free_ptext=0;
|
Edouard@371
|
394 |
}
|
vb@260
|
395 |
free(_src);
|
vb@260
|
396 |
assert(mimetext);
|
vb@260
|
397 |
if (mimetext == NULL)
|
vb@260
|
398 |
goto pep_error;
|
vb@260
|
399 |
|
krista@1639
|
400 |
if (flags & PEP_encrypt_flag_force_unsigned)
|
krista@1639
|
401 |
status = encrypt_only(session, keys, mimetext, strlen(mimetext),
|
krista@1639
|
402 |
&ctext, &csize);
|
krista@1639
|
403 |
else
|
krista@1639
|
404 |
status = encrypt_and_sign(session, keys, mimetext, strlen(mimetext),
|
krista@1639
|
405 |
&ctext, &csize);
|
vb@260
|
406 |
free(mimetext);
|
vb@260
|
407 |
if (ctext == NULL)
|
vb@260
|
408 |
goto pep_error;
|
vb@260
|
409 |
|
vb@260
|
410 |
dst->longmsg = strdup("this message was encrypted with p≡p "
|
lix@487
|
411 |
"https://pEp-project.org");
|
vb@469
|
412 |
assert(dst->longmsg);
|
vb@260
|
413 |
if (dst->longmsg == NULL)
|
vb@260
|
414 |
goto enomem;
|
vb@260
|
415 |
|
vb@260
|
416 |
char *v = strdup("Version: 1");
|
vb@469
|
417 |
assert(v);
|
vb@260
|
418 |
if (v == NULL)
|
vb@260
|
419 |
goto enomem;
|
vb@260
|
420 |
|
roker@801
|
421 |
bloblist_t *_a = new_bloblist(v, strlen(v), "application/pgp-encrypted", NULL);
|
vb@260
|
422 |
if (_a == NULL)
|
vb@260
|
423 |
goto enomem;
|
vb@260
|
424 |
dst->attachments = _a;
|
vb@288
|
425 |
|
Edouard@882
|
426 |
_a = bloblist_add(_a, ctext, csize, "application/octet-stream",
|
Edouard@427
|
427 |
"msg.asc");
|
vb@260
|
428 |
if (_a == NULL)
|
vb@260
|
429 |
goto enomem;
|
vb@260
|
430 |
|
vb@260
|
431 |
return PEP_STATUS_OK;
|
vb@260
|
432 |
|
vb@260
|
433 |
enomem:
|
vb@260
|
434 |
status = PEP_OUT_OF_MEMORY;
|
vb@260
|
435 |
|
vb@260
|
436 |
pep_error:
|
vb@260
|
437 |
if (free_ptext)
|
vb@260
|
438 |
free(ptext);
|
Edouard@882
|
439 |
free(ctext);
|
vb@260
|
440 |
return status;
|
vb@260
|
441 |
}
|
vb@260
|
442 |
|
vb@260
|
443 |
static PEP_STATUS encrypt_PGP_in_pieces(
|
vb@311
|
444 |
PEP_SESSION session,
|
vb@311
|
445 |
const message *src,
|
vb@311
|
446 |
stringlist_t *keys,
|
krista@1639
|
447 |
message *dst,
|
krista@1639
|
448 |
PEP_encrypt_flags_t flags
|
vb@260
|
449 |
)
|
vb@260
|
450 |
{
|
vb@260
|
451 |
PEP_STATUS status = PEP_STATUS_OK;
|
Edouard@882
|
452 |
char *ctext = NULL;
|
vb@260
|
453 |
size_t csize;
|
vb@468
|
454 |
char *ptext = NULL;
|
vb@466
|
455 |
bool free_ptext = false;
|
vb@260
|
456 |
|
vb@260
|
457 |
assert(dst->longmsg == NULL);
|
vb@260
|
458 |
assert(dst->attachments == NULL);
|
vb@260
|
459 |
|
vb@260
|
460 |
dst->enc_format = PEP_enc_pieces;
|
vb@260
|
461 |
|
krista@1639
|
462 |
bool nosign = (flags & PEP_encrypt_flag_force_unsigned);
|
krista@1639
|
463 |
|
vb@320
|
464 |
if (src->shortmsg && src->shortmsg[0] && strcmp(src->shortmsg, "pEp") != 0) {
|
vb@466
|
465 |
if (session->unencrypted_subject) {
|
vb@466
|
466 |
dst->shortmsg = strdup(src->shortmsg);
|
vb@469
|
467 |
assert(dst->shortmsg);
|
vb@466
|
468 |
if (dst->shortmsg == NULL)
|
vb@466
|
469 |
goto enomem;
|
vb@466
|
470 |
ptext = src->longmsg;
|
vb@466
|
471 |
}
|
vb@466
|
472 |
else {
|
vb@466
|
473 |
ptext = combine_short_and_long(src->shortmsg, src->longmsg);
|
vb@466
|
474 |
if (ptext == NULL)
|
vb@466
|
475 |
goto enomem;
|
vb@466
|
476 |
free_ptext = true;
|
vb@466
|
477 |
}
|
vb@260
|
478 |
|
krista@1639
|
479 |
if (nosign)
|
krista@1639
|
480 |
status = encrypt_only(session, keys, ptext, strlen(ptext), &ctext,
|
krista@1639
|
481 |
&csize);
|
krista@1639
|
482 |
else
|
krista@1639
|
483 |
status = encrypt_and_sign(session, keys, ptext, strlen(ptext), &ctext,
|
krista@1639
|
484 |
&csize);
|
vb@466
|
485 |
if (free_ptext)
|
vb@466
|
486 |
free(ptext);
|
vb@466
|
487 |
free_ptext = false;
|
vb@288
|
488 |
if (ctext) {
|
Edouard@882
|
489 |
dst->longmsg = ctext;
|
vb@288
|
490 |
}
|
vb@288
|
491 |
else {
|
vb@260
|
492 |
goto pep_error;
|
vb@288
|
493 |
}
|
vb@260
|
494 |
}
|
vb@320
|
495 |
else if (src->longmsg && src->longmsg[0]) {
|
vb@466
|
496 |
ptext = src->longmsg;
|
krista@1639
|
497 |
if (nosign)
|
krista@1639
|
498 |
status = encrypt_only(session, keys, ptext, strlen(ptext), &ctext,
|
krista@1639
|
499 |
&csize);
|
krista@1639
|
500 |
else
|
krista@1639
|
501 |
status = encrypt_and_sign(session, keys, ptext, strlen(ptext), &ctext,
|
krista@1639
|
502 |
&csize);
|
vb@288
|
503 |
if (ctext) {
|
Edouard@882
|
504 |
dst->longmsg = ctext;
|
vb@288
|
505 |
}
|
vb@288
|
506 |
else {
|
vb@260
|
507 |
goto pep_error;
|
vb@288
|
508 |
}
|
vb@284
|
509 |
}
|
vb@284
|
510 |
else {
|
vb@284
|
511 |
dst->longmsg = strdup("");
|
vb@469
|
512 |
assert(dst->longmsg);
|
vb@284
|
513 |
if (dst->longmsg == NULL)
|
vb@284
|
514 |
goto enomem;
|
vb@260
|
515 |
}
|
vb@260
|
516 |
|
vb@320
|
517 |
if (src->longmsg_formatted && src->longmsg_formatted[0]) {
|
vb@466
|
518 |
ptext = src->longmsg_formatted;
|
krista@1639
|
519 |
if (nosign)
|
krista@1639
|
520 |
status = encrypt_only(session, keys, ptext, strlen(ptext), &ctext,
|
krista@1639
|
521 |
&csize);
|
krista@1639
|
522 |
else
|
krista@1639
|
523 |
status = encrypt_and_sign(session, keys, ptext, strlen(ptext), &ctext,
|
krista@1639
|
524 |
&csize);
|
vb@260
|
525 |
if (ctext) {
|
vb@288
|
526 |
|
Edouard@882
|
527 |
bloblist_t *_a = bloblist_add(dst->attachments, ctext, csize,
|
vb@311
|
528 |
"application/octet-stream", "PGPexch.htm.pgp");
|
vb@284
|
529 |
if (_a == NULL)
|
vb@260
|
530 |
goto enomem;
|
vb@284
|
531 |
if (dst->attachments == NULL)
|
vb@284
|
532 |
dst->attachments = _a;
|
vb@260
|
533 |
}
|
vb@260
|
534 |
else {
|
vb@260
|
535 |
goto pep_error;
|
vb@260
|
536 |
}
|
vb@260
|
537 |
}
|
vb@260
|
538 |
|
vb@260
|
539 |
if (src->attachments) {
|
vb@284
|
540 |
if (dst->attachments == NULL) {
|
vb@284
|
541 |
dst->attachments = new_bloblist(NULL, 0, NULL, NULL);
|
vb@284
|
542 |
if (dst->attachments == NULL)
|
vb@284
|
543 |
goto enomem;
|
vb@284
|
544 |
}
|
vb@260
|
545 |
|
vb@284
|
546 |
bloblist_t *_s = src->attachments;
|
vb@284
|
547 |
bloblist_t *_d = dst->attachments;
|
vb@284
|
548 |
|
Edouard@754
|
549 |
for (int n = 0; _s; _s = _s->next) {
|
Edouard@754
|
550 |
if (_s->value == NULL && _s->size == 0) {
|
Edouard@754
|
551 |
_d = bloblist_add(_d, NULL, 0, _s->mime_type, _s->filename);
|
vb@260
|
552 |
if (_d == NULL)
|
vb@260
|
553 |
goto enomem;
|
vb@260
|
554 |
}
|
vb@260
|
555 |
else {
|
Edouard@754
|
556 |
size_t psize = _s->size;
|
Edouard@754
|
557 |
ptext = _s->value;
|
krista@1639
|
558 |
if (nosign)
|
krista@1639
|
559 |
status = encrypt_only(session, keys, ptext, psize, &ctext,
|
krista@1639
|
560 |
&csize);
|
krista@1639
|
561 |
else
|
krista@1639
|
562 |
status = encrypt_and_sign(session, keys, ptext, psize, &ctext,
|
krista@1639
|
563 |
&csize);
|
Edouard@754
|
564 |
if (ctext) {
|
Edouard@754
|
565 |
char *filename = NULL;
|
Edouard@754
|
566 |
|
Edouard@754
|
567 |
if (_s->filename) {
|
Edouard@754
|
568 |
size_t len = strlen(_s->filename);
|
krista@975
|
569 |
size_t bufsize = len + 5; // length of .pgp extension + NUL
|
krista@975
|
570 |
filename = calloc(1, bufsize);
|
Edouard@754
|
571 |
if (filename == NULL)
|
Edouard@754
|
572 |
goto enomem;
|
Edouard@754
|
573 |
|
krista@975
|
574 |
strlcpy(filename, _s->filename, bufsize);
|
krista@975
|
575 |
strlcat(filename, ".pgp", bufsize);
|
Edouard@754
|
576 |
}
|
Edouard@754
|
577 |
else {
|
Edouard@754
|
578 |
filename = calloc(1, 20);
|
Edouard@754
|
579 |
if (filename == NULL)
|
Edouard@754
|
580 |
goto enomem;
|
Edouard@754
|
581 |
|
Edouard@754
|
582 |
++n;
|
Edouard@754
|
583 |
n &= 0xffff;
|
Edouard@754
|
584 |
snprintf(filename, 20, "Attachment%d.pgp", n);
|
Edouard@754
|
585 |
}
|
Edouard@754
|
586 |
|
Edouard@882
|
587 |
_d = bloblist_add(_d, ctext, csize, "application/octet-stream",
|
Edouard@754
|
588 |
filename);
|
roker@866
|
589 |
free(filename);
|
Edouard@754
|
590 |
if (_d == NULL)
|
Edouard@754
|
591 |
goto enomem;
|
Edouard@754
|
592 |
}
|
Edouard@754
|
593 |
else {
|
Edouard@754
|
594 |
goto pep_error;
|
Edouard@754
|
595 |
}
|
vb@260
|
596 |
}
|
vb@260
|
597 |
}
|
vb@260
|
598 |
}
|
vb@260
|
599 |
|
vb@260
|
600 |
return PEP_STATUS_OK;
|
vb@260
|
601 |
|
vb@260
|
602 |
enomem:
|
vb@260
|
603 |
status = PEP_OUT_OF_MEMORY;
|
vb@260
|
604 |
|
vb@260
|
605 |
pep_error:
|
vb@466
|
606 |
if (free_ptext)
|
vb@466
|
607 |
free(ptext);
|
vb@260
|
608 |
return status;
|
vb@260
|
609 |
}
|
vb@260
|
610 |
|
vb@311
|
611 |
static char * keylist_to_string(const stringlist_t *keylist)
|
vb@311
|
612 |
{
|
vb@311
|
613 |
if (keylist) {
|
vb@311
|
614 |
size_t size = stringlist_length(keylist);
|
vb@311
|
615 |
|
vb@311
|
616 |
const stringlist_t *_kl;
|
vb@311
|
617 |
for (_kl = keylist; _kl && _kl->value; _kl = _kl->next) {
|
vb@311
|
618 |
size += strlen(_kl->value);
|
vb@311
|
619 |
}
|
vb@311
|
620 |
|
vb@311
|
621 |
char *result = calloc(1, size);
|
vb@311
|
622 |
if (result == NULL)
|
vb@311
|
623 |
return NULL;
|
vb@311
|
624 |
|
vb@311
|
625 |
char *_r = result;
|
vb@311
|
626 |
for (_kl = keylist; _kl && _kl->value; _kl = _kl->next) {
|
vb@311
|
627 |
_r = stpcpy(_r, _kl->value);
|
vb@311
|
628 |
if (_kl->next && _kl->next->value)
|
vb@311
|
629 |
_r = stpcpy(_r, ",");
|
vb@311
|
630 |
}
|
vb@311
|
631 |
|
vb@311
|
632 |
return result;
|
vb@311
|
633 |
}
|
vb@311
|
634 |
else {
|
vb@311
|
635 |
return NULL;
|
vb@311
|
636 |
}
|
vb@311
|
637 |
}
|
vb@311
|
638 |
|
vb@1004
|
639 |
static const char * rating_to_string(PEP_rating rating)
|
vb@311
|
640 |
{
|
vb@1004
|
641 |
switch (rating) {
|
vb@311
|
642 |
case PEP_rating_cannot_decrypt:
|
vb@311
|
643 |
return "cannot_decrypt";
|
vb@311
|
644 |
case PEP_rating_have_no_key:
|
vb@311
|
645 |
return "have_no_key";
|
vb@311
|
646 |
case PEP_rating_unencrypted:
|
vb@311
|
647 |
return "unencrypted";
|
vb@486
|
648 |
case PEP_rating_unencrypted_for_some:
|
vb@486
|
649 |
return "unencrypted_for_some";
|
vb@311
|
650 |
case PEP_rating_unreliable:
|
vb@311
|
651 |
return "unreliable";
|
vb@311
|
652 |
case PEP_rating_reliable:
|
vb@311
|
653 |
return "reliable";
|
vb@311
|
654 |
case PEP_rating_trusted:
|
vb@311
|
655 |
return "trusted";
|
vb@311
|
656 |
case PEP_rating_trusted_and_anonymized:
|
vb@311
|
657 |
return "trusted_and_anonymized";
|
vb@311
|
658 |
case PEP_rating_fully_anonymous:
|
vb@311
|
659 |
return "fully_anonymous";
|
Edouard@442
|
660 |
case PEP_rating_mistrust:
|
Edouard@442
|
661 |
return "mistrust";
|
Edouard@442
|
662 |
case PEP_rating_b0rken:
|
Edouard@442
|
663 |
return "b0rken";
|
vb@311
|
664 |
case PEP_rating_under_attack:
|
krista@961
|
665 |
return "under_attack";
|
vb@311
|
666 |
default:
|
vb@311
|
667 |
return "undefined";
|
vb@311
|
668 |
}
|
vb@311
|
669 |
}
|
vb@311
|
670 |
|
vb@311
|
671 |
static void decorate_message(
|
vb@311
|
672 |
message *msg,
|
vb@1004
|
673 |
PEP_rating rating,
|
vb@311
|
674 |
stringlist_t *keylist
|
vb@311
|
675 |
)
|
vb@311
|
676 |
{
|
vb@311
|
677 |
assert(msg);
|
vb@311
|
678 |
|
krista@942
|
679 |
add_opt_field(msg, "X-pEp-Version", PEP_VERSION);
|
krista@1427
|
680 |
|
vb@1004
|
681 |
if (rating != PEP_rating_undefined)
|
vb@1004
|
682 |
add_opt_field(msg, "X-EncStatus", rating_to_string(rating));
|
vb@311
|
683 |
|
vb@311
|
684 |
if (keylist) {
|
vb@311
|
685 |
char *_keylist = keylist_to_string(keylist);
|
vb@311
|
686 |
add_opt_field(msg, "X-KeyList", _keylist);
|
vb@311
|
687 |
free(_keylist);
|
vb@311
|
688 |
}
|
vb@311
|
689 |
}
|
vb@311
|
690 |
|
vb@1004
|
691 |
static PEP_rating _rating(PEP_comm_type ct, PEP_rating rating)
|
vb@311
|
692 |
{
|
vb@311
|
693 |
if (ct == PEP_ct_unknown)
|
vb@311
|
694 |
return PEP_rating_undefined;
|
krista@1427
|
695 |
|
krista@1243
|
696 |
else if (ct == PEP_ct_key_not_found)
|
krista@1243
|
697 |
return PEP_rating_have_no_key;
|
krista@1427
|
698 |
|
vb@311
|
699 |
else if (ct == PEP_ct_compromized)
|
vb@311
|
700 |
return PEP_rating_under_attack;
|
vb@311
|
701 |
|
Edouard@442
|
702 |
else if (ct == PEP_ct_mistrusted)
|
Edouard@442
|
703 |
return PEP_rating_mistrust;
|
krista@1427
|
704 |
|
vb@1004
|
705 |
if (rating == PEP_rating_unencrypted_for_some)
|
vb@486
|
706 |
return PEP_rating_unencrypted_for_some;
|
vb@486
|
707 |
|
vb@486
|
708 |
if (ct == PEP_ct_no_encryption || ct == PEP_ct_no_encrypted_channel ||
|
vb@486
|
709 |
ct == PEP_ct_my_key_not_included) {
|
vb@1004
|
710 |
if (rating > PEP_rating_unencrypted_for_some)
|
vb@486
|
711 |
return PEP_rating_unencrypted_for_some;
|
vb@486
|
712 |
else
|
vb@486
|
713 |
return PEP_rating_unencrypted;
|
vb@486
|
714 |
}
|
vb@486
|
715 |
|
vb@1004
|
716 |
if (rating == PEP_rating_unencrypted)
|
vb@486
|
717 |
return PEP_rating_unencrypted_for_some;
|
vb@486
|
718 |
|
vb@486
|
719 |
if (ct >= PEP_ct_confirmed_enc_anon)
|
vb@311
|
720 |
return PEP_rating_trusted_and_anonymized;
|
vb@311
|
721 |
|
vb@311
|
722 |
else if (ct >= PEP_ct_strong_encryption)
|
vb@311
|
723 |
return PEP_rating_trusted;
|
vb@311
|
724 |
|
vb@311
|
725 |
else if (ct >= PEP_ct_strong_but_unconfirmed && ct < PEP_ct_confirmed)
|
vb@311
|
726 |
return PEP_rating_reliable;
|
vb@311
|
727 |
|
vb@311
|
728 |
else
|
vb@311
|
729 |
return PEP_rating_unreliable;
|
vb@311
|
730 |
}
|
vb@311
|
731 |
|
vb@311
|
732 |
static bool is_encrypted_attachment(const bloblist_t *blob)
|
vb@311
|
733 |
{
|
vb@311
|
734 |
assert(blob);
|
vb@311
|
735 |
|
krista@853
|
736 |
if (blob == NULL || blob->filename == NULL)
|
vb@311
|
737 |
return false;
|
krista@1427
|
738 |
|
roker@1559
|
739 |
char *ext = strrchr(blob->filename, '.');
|
vb@311
|
740 |
if (ext == NULL)
|
vb@311
|
741 |
return false;
|
vb@311
|
742 |
|
vb@320
|
743 |
if (strcmp(blob->mime_type, "application/octet-stream") == 0) {
|
vb@311
|
744 |
if (strcmp(ext, ".pgp") == 0 || strcmp(ext, ".gpg") == 0 ||
|
vb@311
|
745 |
strcmp(ext, ".asc") == 0)
|
vb@311
|
746 |
return true;
|
vb@311
|
747 |
}
|
vb@320
|
748 |
else if (strcmp(blob->mime_type, "text/plain") == 0) {
|
vb@311
|
749 |
if (strcmp(ext, ".asc") == 0)
|
vb@311
|
750 |
return true;
|
vb@311
|
751 |
}
|
vb@311
|
752 |
|
vb@311
|
753 |
return false;
|
vb@311
|
754 |
}
|
vb@311
|
755 |
|
vb@311
|
756 |
static bool is_encrypted_html_attachment(const bloblist_t *blob)
|
vb@311
|
757 |
{
|
vb@311
|
758 |
assert(blob);
|
vb@311
|
759 |
assert(blob->filename);
|
krista@853
|
760 |
if (blob == NULL || blob->filename == NULL)
|
krista@853
|
761 |
return false;
|
vb@311
|
762 |
|
vb@311
|
763 |
if (strncmp(blob->filename, "PGPexch.htm.", 12) == 0) {
|
vb@311
|
764 |
if (strcmp(blob->filename + 11, ".pgp") == 0 ||
|
vb@311
|
765 |
strcmp(blob->filename + 11, ".asc") == 0)
|
vb@311
|
766 |
return true;
|
vb@311
|
767 |
}
|
vb@311
|
768 |
|
vb@311
|
769 |
return false;
|
vb@311
|
770 |
}
|
vb@311
|
771 |
|
vb@311
|
772 |
static char * without_double_ending(const char *filename)
|
vb@311
|
773 |
{
|
vb@311
|
774 |
assert(filename);
|
krista@853
|
775 |
if (filename == NULL)
|
krista@853
|
776 |
return NULL;
|
krista@1427
|
777 |
|
roker@862
|
778 |
char *ext = strrchr(filename, '.');
|
vb@311
|
779 |
if (ext == NULL)
|
vb@311
|
780 |
return NULL;
|
vb@311
|
781 |
|
vb@469
|
782 |
char *result = strndup(filename, ext - filename);
|
vb@469
|
783 |
assert(result);
|
vb@469
|
784 |
return result;
|
vb@311
|
785 |
}
|
vb@311
|
786 |
|
vb@1004
|
787 |
static PEP_rating decrypt_rating(PEP_STATUS status)
|
vb@311
|
788 |
{
|
vb@311
|
789 |
switch (status) {
|
vb@311
|
790 |
case PEP_UNENCRYPTED:
|
vb@311
|
791 |
case PEP_VERIFIED:
|
vb@311
|
792 |
case PEP_VERIFY_NO_KEY:
|
vb@311
|
793 |
case PEP_VERIFIED_AND_TRUSTED:
|
vb@311
|
794 |
return PEP_rating_unencrypted;
|
vb@311
|
795 |
|
vb@311
|
796 |
case PEP_DECRYPTED:
|
vb@311
|
797 |
return PEP_rating_unreliable;
|
vb@311
|
798 |
|
vb@311
|
799 |
case PEP_DECRYPTED_AND_VERIFIED:
|
vb@311
|
800 |
return PEP_rating_reliable;
|
vb@311
|
801 |
|
vb@311
|
802 |
case PEP_DECRYPT_NO_KEY:
|
vb@311
|
803 |
return PEP_rating_have_no_key;
|
vb@311
|
804 |
|
vb@311
|
805 |
case PEP_DECRYPT_WRONG_FORMAT:
|
vb@311
|
806 |
case PEP_CANNOT_DECRYPT_UNKNOWN:
|
vb@311
|
807 |
return PEP_rating_cannot_decrypt;
|
vb@311
|
808 |
|
vb@311
|
809 |
default:
|
vb@311
|
810 |
return PEP_rating_undefined;
|
vb@311
|
811 |
}
|
vb@311
|
812 |
}
|
vb@311
|
813 |
|
vb@1004
|
814 |
static PEP_rating key_rating(PEP_SESSION session, const char *fpr)
|
vb@311
|
815 |
{
|
vb@311
|
816 |
|
vb@311
|
817 |
assert(session);
|
vb@311
|
818 |
assert(fpr);
|
krista@1427
|
819 |
|
krista@853
|
820 |
if (session == NULL || fpr == NULL)
|
krista@853
|
821 |
return PEP_rating_undefined;
|
vb@311
|
822 |
|
edouard@1632
|
823 |
|
edouard@1632
|
824 |
PEP_comm_type bare_comm_type = PEP_ct_unknown;
|
krista@1615
|
825 |
PEP_STATUS status = get_key_rating(session, fpr, &bare_comm_type);
|
vb@311
|
826 |
if (status != PEP_STATUS_OK)
|
vb@311
|
827 |
return PEP_rating_undefined;
|
vb@311
|
828 |
|
krista@1615
|
829 |
PEP_comm_type least_trust_type = PEP_ct_unknown;
|
edouard@1632
|
830 |
least_trust(session, fpr, &least_trust_type);
|
edouard@1632
|
831 |
|
edouard@1632
|
832 |
if (least_trust_type == PEP_ct_unknown) {
|
edouard@1632
|
833 |
return _rating(bare_comm_type, PEP_rating_undefined);
|
edouard@1632
|
834 |
} else {
|
edouard@1632
|
835 |
return _rating(least_trust_type, PEP_rating_undefined);
|
edouard@1632
|
836 |
}
|
vb@311
|
837 |
}
|
vb@311
|
838 |
|
krista@1579
|
839 |
static PEP_rating worst_rating(PEP_rating rating1, PEP_rating rating2) {
|
krista@1579
|
840 |
return ((rating1 < rating2) ? rating1 : rating2);
|
krista@1579
|
841 |
}
|
krista@1579
|
842 |
|
vb@1004
|
843 |
static PEP_rating keylist_rating(PEP_SESSION session, stringlist_t *keylist)
|
vb@311
|
844 |
{
|
krista@1610
|
845 |
PEP_rating rating = PEP_rating_undefined;
|
vb@311
|
846 |
|
vb@311
|
847 |
assert(keylist && keylist->value);
|
vb@311
|
848 |
if (keylist == NULL || keylist->value == NULL)
|
vb@486
|
849 |
return PEP_rating_undefined;
|
vb@311
|
850 |
|
vb@311
|
851 |
stringlist_t *_kl;
|
krista@1610
|
852 |
bool first = true;
|
vb@311
|
853 |
for (_kl = keylist; _kl && _kl->value; _kl = _kl->next) {
|
vb@311
|
854 |
PEP_comm_type ct;
|
vb@311
|
855 |
PEP_STATUS status;
|
vb@311
|
856 |
|
vb@1004
|
857 |
PEP_rating _rating_ = key_rating(session, _kl->value);
|
krista@1579
|
858 |
|
vb@1004
|
859 |
if (_rating_ <= PEP_rating_mistrust)
|
vb@1004
|
860 |
return _rating_;
|
krista@1610
|
861 |
|
krista@1610
|
862 |
if (first) {
|
krista@1610
|
863 |
rating = _rating_;
|
krista@1610
|
864 |
first = false;
|
krista@1610
|
865 |
}
|
krista@1610
|
866 |
else if (rating == PEP_rating_undefined)
|
krista@1579
|
867 |
rating = worst_rating(rating, _rating_);
|
vb@486
|
868 |
|
vb@1004
|
869 |
if (_rating_ >= PEP_rating_reliable) {
|
vb@311
|
870 |
status = least_trust(session, _kl->value, &ct);
|
vb@311
|
871 |
if (status != PEP_STATUS_OK)
|
vb@311
|
872 |
return PEP_rating_undefined;
|
edouard@1156
|
873 |
if (ct == PEP_ct_unknown){
|
krista@1615
|
874 |
/* per edouard, we reduce reliable+ ratings to reliable because
|
krista@1615
|
875 |
ct unknown */
|
edouard@1156
|
876 |
if (rating >= PEP_rating_reliable){
|
krista@1615
|
877 |
rating = PEP_rating_reliable;
|
edouard@1156
|
878 |
}
|
edouard@1156
|
879 |
}
|
edouard@1156
|
880 |
else{
|
krista@1579
|
881 |
rating = worst_rating(rating, _rating(ct, rating));
|
edouard@1156
|
882 |
}
|
vb@486
|
883 |
}
|
vb@1004
|
884 |
else if (_rating_ == PEP_rating_unencrypted) {
|
vb@1004
|
885 |
if (rating > PEP_rating_unencrypted_for_some)
|
krista@1579
|
886 |
rating = worst_rating(rating, PEP_rating_unencrypted_for_some);
|
vb@311
|
887 |
}
|
vb@311
|
888 |
}
|
vb@311
|
889 |
|
vb@1004
|
890 |
return rating;
|
vb@311
|
891 |
}
|
vb@311
|
892 |
|
vb@311
|
893 |
static PEP_comm_type _get_comm_type(
|
vb@311
|
894 |
PEP_SESSION session,
|
vb@311
|
895 |
PEP_comm_type max_comm_type,
|
vb@311
|
896 |
pEp_identity *ident
|
vb@311
|
897 |
)
|
vb@311
|
898 |
{
|
vb@311
|
899 |
PEP_STATUS status = update_identity(session, ident);
|
vb@311
|
900 |
|
vb@311
|
901 |
if (max_comm_type == PEP_ct_compromized)
|
vb@311
|
902 |
return PEP_ct_compromized;
|
krista@1427
|
903 |
|
Edouard@510
|
904 |
if (max_comm_type == PEP_ct_mistrusted)
|
Edouard@510
|
905 |
return PEP_ct_mistrusted;
|
vb@311
|
906 |
|
vb@311
|
907 |
if (status == PEP_STATUS_OK) {
|
vb@311
|
908 |
if (ident->comm_type == PEP_ct_compromized)
|
vb@311
|
909 |
return PEP_ct_compromized;
|
Edouard@510
|
910 |
else if (ident->comm_type == PEP_ct_mistrusted)
|
Edouard@510
|
911 |
return PEP_ct_mistrusted;
|
vb@311
|
912 |
else
|
vb@951
|
913 |
return _MIN(max_comm_type, ident->comm_type);
|
vb@311
|
914 |
}
|
vb@311
|
915 |
else {
|
vb@311
|
916 |
return PEP_ct_unknown;
|
vb@311
|
917 |
}
|
vb@311
|
918 |
}
|
vb@311
|
919 |
|
vb@731
|
920 |
static void free_bl_entry(bloblist_t *bl)
|
vb@731
|
921 |
{
|
vb@731
|
922 |
if (bl) {
|
vb@731
|
923 |
free(bl->value);
|
vb@731
|
924 |
free(bl->mime_type);
|
vb@731
|
925 |
free(bl->filename);
|
vb@731
|
926 |
free(bl);
|
vb@731
|
927 |
}
|
vb@731
|
928 |
}
|
vb@731
|
929 |
|
vb@731
|
930 |
static bool is_key(const bloblist_t *bl)
|
vb@731
|
931 |
{
|
Edouard@728
|
932 |
return (// workaround for Apple Mail bugs
|
Edouard@728
|
933 |
(is_mime_type(bl, "application/x-apple-msg-attachment") &&
|
Edouard@728
|
934 |
is_fileending(bl, ".asc")) ||
|
Edouard@728
|
935 |
// as binary, by file name
|
Edouard@728
|
936 |
((bl->mime_type == NULL ||
|
Edouard@728
|
937 |
is_mime_type(bl, "application/octet-stream")) &&
|
Edouard@728
|
938 |
(is_fileending(bl, ".pgp") || is_fileending(bl, ".gpg") ||
|
Edouard@728
|
939 |
is_fileending(bl, ".key") || is_fileending(bl, ".asc"))) ||
|
krista@1427
|
940 |
// explicit mime type
|
Edouard@728
|
941 |
is_mime_type(bl, "application/pgp-keys") ||
|
Edouard@728
|
942 |
// as text, by file name
|
Edouard@728
|
943 |
(is_mime_type(bl, "text/plain") &&
|
Edouard@728
|
944 |
(is_fileending(bl, ".pgp") || is_fileending(bl, ".gpg") ||
|
Edouard@728
|
945 |
is_fileending(bl, ".key") || is_fileending(bl, ".asc")))
|
Edouard@728
|
946 |
);
|
vb@731
|
947 |
}
|
vb@731
|
948 |
|
vb@731
|
949 |
static void remove_attached_keys(message *msg)
|
vb@731
|
950 |
{
|
vb@731
|
951 |
if (msg) {
|
vb@731
|
952 |
bloblist_t *last = NULL;
|
vb@731
|
953 |
for (bloblist_t *bl = msg->attachments; bl && bl->value; ) {
|
vb@731
|
954 |
bloblist_t *next = bl->next;
|
vb@731
|
955 |
|
vb@731
|
956 |
if (is_key(bl)) {
|
vb@731
|
957 |
if (last) {
|
vb@731
|
958 |
last->next = next;
|
vb@731
|
959 |
}
|
vb@731
|
960 |
else {
|
vb@731
|
961 |
msg->attachments = next;
|
vb@731
|
962 |
}
|
vb@731
|
963 |
free_bl_entry(bl);
|
vb@731
|
964 |
}
|
vb@731
|
965 |
else {
|
vb@731
|
966 |
last = bl;
|
vb@731
|
967 |
}
|
vb@731
|
968 |
bl = next;
|
vb@731
|
969 |
}
|
vb@731
|
970 |
}
|
vb@731
|
971 |
}
|
vb@731
|
972 |
|
Edouard@734
|
973 |
bool import_attached_keys(
|
krista@1427
|
974 |
PEP_SESSION session,
|
Edouard@728
|
975 |
const message *msg,
|
Edouard@728
|
976 |
identity_list **private_idents
|
Edouard@728
|
977 |
)
|
vb@311
|
978 |
{
|
vb@311
|
979 |
assert(session);
|
vb@311
|
980 |
assert(msg);
|
krista@1427
|
981 |
|
krista@853
|
982 |
if (session == NULL || msg == NULL)
|
krista@853
|
983 |
return false;
|
vb@311
|
984 |
|
vb@731
|
985 |
bool remove = false;
|
vb@731
|
986 |
|
vb@908
|
987 |
int i = 0;
|
roker@1559
|
988 |
for (bloblist_t *bl = msg->attachments; i < MAX_KEYS_TO_IMPORT && bl && bl->value;
|
krista@1427
|
989 |
bl = bl->next, i++)
|
Edouard@747
|
990 |
{
|
vb@908
|
991 |
if (bl && bl->value && bl->size && bl->size < MAX_KEY_SIZE
|
krista@1427
|
992 |
&& is_key(bl))
|
Edouard@728
|
993 |
{
|
Edouard@728
|
994 |
import_key(session, bl->value, bl->size, private_idents);
|
vb@731
|
995 |
remove = true;
|
vb@311
|
996 |
}
|
vb@311
|
997 |
}
|
vb@731
|
998 |
return remove;
|
vb@311
|
999 |
}
|
vb@311
|
1000 |
|
Edouard@694
|
1001 |
|
Edouard@694
|
1002 |
PEP_STATUS _attach_key(PEP_SESSION session, const char* fpr, message *msg)
|
vb@311
|
1003 |
{
|
roker@1559
|
1004 |
char *keydata = NULL;
|
vb@311
|
1005 |
size_t size;
|
vb@311
|
1006 |
|
Edouard@694
|
1007 |
PEP_STATUS status = export_key(session, fpr, &keydata, &size);
|
Edouard@694
|
1008 |
assert(status == PEP_STATUS_OK);
|
Edouard@694
|
1009 |
if (status != PEP_STATUS_OK)
|
Edouard@694
|
1010 |
return status;
|
Edouard@694
|
1011 |
assert(size);
|
krista@1427
|
1012 |
|
roker@1559
|
1013 |
bloblist_t *bl = bloblist_add(msg->attachments, keydata, size, "application/pgp-keys",
|
Edouard@694
|
1014 |
"pEpkey.asc");
|
krista@1427
|
1015 |
|
Edouard@694
|
1016 |
if (msg->attachments == NULL && bl)
|
Edouard@694
|
1017 |
msg->attachments = bl;
|
Edouard@694
|
1018 |
|
Edouard@694
|
1019 |
return PEP_STATUS_OK;
|
Edouard@694
|
1020 |
}
|
Edouard@694
|
1021 |
|
Edouard@694
|
1022 |
#define ONE_WEEK (7*24*3600)
|
Edouard@694
|
1023 |
|
Edouard@694
|
1024 |
void attach_own_key(PEP_SESSION session, message *msg)
|
Edouard@694
|
1025 |
{
|
vb@311
|
1026 |
assert(session);
|
vb@311
|
1027 |
assert(msg);
|
krista@1427
|
1028 |
|
Edouard@558
|
1029 |
if (msg->dir == PEP_dir_incoming)
|
Edouard@558
|
1030 |
return;
|
Edouard@558
|
1031 |
|
vb@311
|
1032 |
assert(msg->from && msg->from->fpr);
|
vb@311
|
1033 |
if (msg->from == NULL || msg->from->fpr == NULL)
|
vb@311
|
1034 |
return;
|
vb@311
|
1035 |
|
Edouard@694
|
1036 |
if(_attach_key(session, msg->from->fpr, msg) != PEP_STATUS_OK)
|
vb@311
|
1037 |
return;
|
krista@1427
|
1038 |
|
Edouard@694
|
1039 |
char *revoked_fpr = NULL;
|
Edouard@694
|
1040 |
uint64_t revocation_date = 0;
|
krista@1427
|
1041 |
|
Edouard@694
|
1042 |
if(get_revoked(session, msg->from->fpr,
|
Edouard@694
|
1043 |
&revoked_fpr, &revocation_date) == PEP_STATUS_OK &&
|
Edouard@694
|
1044 |
revoked_fpr != NULL)
|
Edouard@694
|
1045 |
{
|
Edouard@694
|
1046 |
time_t now = time(NULL);
|
krista@1427
|
1047 |
|
Edouard@694
|
1048 |
if (now < (time_t)revocation_date + ONE_WEEK)
|
Edouard@694
|
1049 |
{
|
Edouard@694
|
1050 |
_attach_key(session, revoked_fpr, msg);
|
Edouard@694
|
1051 |
}
|
Edouard@694
|
1052 |
}
|
Edouard@694
|
1053 |
free(revoked_fpr);
|
vb@311
|
1054 |
}
|
vb@311
|
1055 |
|
vb@311
|
1056 |
PEP_cryptotech determine_encryption_format(message *msg)
|
vb@311
|
1057 |
{
|
vb@311
|
1058 |
assert(msg);
|
krista@1427
|
1059 |
|
vb@311
|
1060 |
if (is_PGP_message_text(msg->longmsg)) {
|
vb@311
|
1061 |
msg->enc_format = PEP_enc_pieces;
|
vb@311
|
1062 |
return PEP_crypt_OpenPGP;
|
vb@311
|
1063 |
}
|
vb@311
|
1064 |
else if (msg->attachments && msg->attachments->next &&
|
vb@311
|
1065 |
is_mime_type(msg->attachments, "application/pgp-encrypted") &&
|
vb@311
|
1066 |
is_PGP_message_text(msg->attachments->next->value)
|
vb@311
|
1067 |
) {
|
vb@311
|
1068 |
msg->enc_format = PEP_enc_PGP_MIME;
|
vb@311
|
1069 |
return PEP_crypt_OpenPGP;
|
vb@311
|
1070 |
}
|
edouard@1557
|
1071 |
else if (msg->attachments && msg->attachments->next &&
|
edouard@1557
|
1072 |
is_mime_type(msg->attachments->next, "application/pgp-encrypted") &&
|
edouard@1557
|
1073 |
is_PGP_message_text(msg->attachments->value)
|
edouard@1557
|
1074 |
) {
|
edouard@1557
|
1075 |
msg->enc_format = PEP_enc_PGP_MIME_Outlook1;
|
edouard@1557
|
1076 |
return PEP_crypt_OpenPGP;
|
edouard@1557
|
1077 |
}
|
vb@311
|
1078 |
else {
|
vb@311
|
1079 |
msg->enc_format = PEP_enc_none;
|
vb@311
|
1080 |
return PEP_crypt_none;
|
vb@311
|
1081 |
}
|
vb@311
|
1082 |
}
|
vb@311
|
1083 |
|
vb@48
|
1084 |
DYNAMIC_API PEP_STATUS encrypt_message(
|
vb@37
|
1085 |
PEP_SESSION session,
|
vb@113
|
1086 |
message *src,
|
vb@37
|
1087 |
stringlist_t * extra,
|
vb@38
|
1088 |
message **dst,
|
vb@939
|
1089 |
PEP_enc_format enc_format,
|
vb@939
|
1090 |
PEP_encrypt_flags_t flags
|
vb@37
|
1091 |
)
|
vb@37
|
1092 |
{
|
vb@37
|
1093 |
PEP_STATUS status = PEP_STATUS_OK;
|
vb@63
|
1094 |
message * msg = NULL;
|
vb@63
|
1095 |
stringlist_t * keys = NULL;
|
vb@37
|
1096 |
|
vb@37
|
1097 |
assert(session);
|
vb@37
|
1098 |
assert(src);
|
vb@37
|
1099 |
assert(dst);
|
Edouard@558
|
1100 |
assert(enc_format != PEP_enc_none);
|
vb@81
|
1101 |
|
Edouard@558
|
1102 |
if (!(session && src && dst && enc_format != PEP_enc_none))
|
vb@191
|
1103 |
return PEP_ILLEGAL_VALUE;
|
vb@191
|
1104 |
|
Edouard@550
|
1105 |
if (src->dir == PEP_dir_incoming)
|
Edouard@550
|
1106 |
return PEP_ILLEGAL_VALUE;
|
krista@1427
|
1107 |
|
vb@259
|
1108 |
determine_encryption_format(src);
|
vb@260
|
1109 |
if (src->enc_format != PEP_enc_none)
|
vb@260
|
1110 |
return PEP_ILLEGAL_VALUE;
|
vb@259
|
1111 |
|
vb@37
|
1112 |
*dst = NULL;
|
vb@67
|
1113 |
|
vb@236
|
1114 |
status = myself(session, src->from);
|
vb@236
|
1115 |
if (status != PEP_STATUS_OK)
|
vb@236
|
1116 |
goto pep_error;
|
Edouard@558
|
1117 |
|
vb@80
|
1118 |
keys = new_stringlist(src->from->fpr);
|
vb@63
|
1119 |
if (keys == NULL)
|
vb@63
|
1120 |
goto enomem;
|
vb@37
|
1121 |
|
vb@39
|
1122 |
stringlist_t *_k = keys;
|
vb@39
|
1123 |
|
vb@39
|
1124 |
if (extra) {
|
vb@39
|
1125 |
_k = stringlist_append(_k, extra);
|
vb@63
|
1126 |
if (_k == NULL)
|
vb@63
|
1127 |
goto enomem;
|
vb@37
|
1128 |
}
|
vb@39
|
1129 |
|
vb@299
|
1130 |
bool dest_keys_found = true;
|
Edouard@510
|
1131 |
PEP_comm_type max_comm_type = PEP_ct_pEp;
|
vb@299
|
1132 |
|
vb@37
|
1133 |
identity_list * _il;
|
krista@1427
|
1134 |
|
Edouard@545
|
1135 |
if ((_il = src->bcc) && _il->ident)
|
Edouard@545
|
1136 |
{
|
Edouard@545
|
1137 |
// BCC limited support:
|
Edouard@545
|
1138 |
// - App splits mails with BCC in multiple mails.
|
Edouard@545
|
1139 |
// - Each email is encrypted separately
|
krista@1427
|
1140 |
|
Edouard@789
|
1141 |
if(_il->next || (src->to && src->to->ident) || (src->cc && src->cc->ident))
|
Edouard@545
|
1142 |
{
|
Edouard@545
|
1143 |
// Only one Bcc with no other recipient allowed for now
|
Edouard@545
|
1144 |
return PEP_ILLEGAL_VALUE;
|
Edouard@545
|
1145 |
}
|
krista@1427
|
1146 |
|
vb@299
|
1147 |
PEP_STATUS _status = update_identity(session, _il->ident);
|
vb@299
|
1148 |
if (_status != PEP_STATUS_OK) {
|
vb@299
|
1149 |
status = _status;
|
vb@63
|
1150 |
goto pep_error;
|
vb@299
|
1151 |
}
|
krista@1427
|
1152 |
|
vb@299
|
1153 |
if (_il->ident->fpr && _il->ident->fpr[0]) {
|
vb@39
|
1154 |
_k = stringlist_add(_k, _il->ident->fpr);
|
vb@63
|
1155 |
if (_k == NULL)
|
vb@63
|
1156 |
goto enomem;
|
Edouard@510
|
1157 |
max_comm_type = _get_comm_type(session, max_comm_type,
|
Edouard@510
|
1158 |
_il->ident);
|
vb@37
|
1159 |
}
|
vb@299
|
1160 |
else {
|
vb@299
|
1161 |
dest_keys_found = false;
|
vb@37
|
1162 |
status = PEP_KEY_NOT_FOUND;
|
krista@1427
|
1163 |
}
|
vb@299
|
1164 |
}
|
Edouard@545
|
1165 |
else
|
Edouard@545
|
1166 |
{
|
Edouard@545
|
1167 |
for (_il = src->to; _il && _il->ident; _il = _il->next) {
|
Edouard@545
|
1168 |
PEP_STATUS _status = update_identity(session, _il->ident);
|
Edouard@545
|
1169 |
if (_status != PEP_STATUS_OK) {
|
Edouard@545
|
1170 |
status = _status;
|
Edouard@545
|
1171 |
goto pep_error;
|
Edouard@545
|
1172 |
}
|
vb@299
|
1173 |
|
Edouard@545
|
1174 |
if (_il->ident->fpr && _il->ident->fpr[0]) {
|
Edouard@545
|
1175 |
_k = stringlist_add(_k, _il->ident->fpr);
|
Edouard@545
|
1176 |
if (_k == NULL)
|
Edouard@545
|
1177 |
goto enomem;
|
Edouard@545
|
1178 |
max_comm_type = _get_comm_type(session, max_comm_type,
|
Edouard@545
|
1179 |
_il->ident);
|
Edouard@545
|
1180 |
}
|
Edouard@545
|
1181 |
else {
|
Edouard@545
|
1182 |
dest_keys_found = false;
|
Edouard@545
|
1183 |
status = PEP_KEY_NOT_FOUND;
|
Edouard@545
|
1184 |
}
|
vb@299
|
1185 |
}
|
vb@299
|
1186 |
|
Edouard@545
|
1187 |
for (_il = src->cc; _il && _il->ident; _il = _il->next) {
|
Edouard@545
|
1188 |
PEP_STATUS _status = update_identity(session, _il->ident);
|
Edouard@545
|
1189 |
if (_status != PEP_STATUS_OK)
|
Edouard@545
|
1190 |
{
|
Edouard@545
|
1191 |
status = _status;
|
Edouard@545
|
1192 |
goto pep_error;
|
Edouard@545
|
1193 |
}
|
Edouard@545
|
1194 |
|
Edouard@545
|
1195 |
if (_il->ident->fpr && _il->ident->fpr[0]) {
|
Edouard@545
|
1196 |
_k = stringlist_add(_k, _il->ident->fpr);
|
Edouard@545
|
1197 |
if (_k == NULL)
|
Edouard@545
|
1198 |
goto enomem;
|
Edouard@545
|
1199 |
max_comm_type = _get_comm_type(session, max_comm_type,
|
Edouard@545
|
1200 |
_il->ident);
|
Edouard@545
|
1201 |
}
|
Edouard@545
|
1202 |
else {
|
Edouard@545
|
1203 |
dest_keys_found = false;
|
Edouard@545
|
1204 |
status = PEP_KEY_NOT_FOUND;
|
Edouard@545
|
1205 |
}
|
vb@299
|
1206 |
}
|
vb@37
|
1207 |
}
|
krista@1427
|
1208 |
|
Edouard@510
|
1209 |
if (!dest_keys_found ||
|
krista@1640
|
1210 |
stringlist_length(keys) == 0 ||
|
Edouard@510
|
1211 |
_rating(max_comm_type,
|
Edouard@510
|
1212 |
PEP_rating_undefined) < PEP_rating_reliable)
|
Edouard@510
|
1213 |
{
|
vb@301
|
1214 |
free_stringlist(keys);
|
krista@1640
|
1215 |
if (!session->passive_mode && !(flags & PEP_encrypt_flag_force_no_attached_key))
|
vb@465
|
1216 |
attach_own_key(session, src);
|
vb@301
|
1217 |
return PEP_UNENCRYPTED;
|
vb@301
|
1218 |
}
|
vb@301
|
1219 |
else {
|
vb@299
|
1220 |
msg = clone_to_empty_message(src);
|
vb@299
|
1221 |
if (msg == NULL)
|
vb@299
|
1222 |
goto enomem;
|
vb@299
|
1223 |
|
krista@1640
|
1224 |
if (!(flags & PEP_encrypt_flag_force_no_attached_key))
|
krista@1640
|
1225 |
attach_own_key(session, src);
|
Edouard@428
|
1226 |
|
vb@81
|
1227 |
switch (enc_format) {
|
vb@260
|
1228 |
case PEP_enc_PGP_MIME:
|
vb@336
|
1229 |
case PEP_enc_PEP: // BUG: should be implemented extra
|
krista@1639
|
1230 |
status = encrypt_PGP_MIME(session, src, keys, msg, flags);
|
vb@260
|
1231 |
break;
|
vb@62
|
1232 |
|
vb@62
|
1233 |
case PEP_enc_pieces:
|
krista@1639
|
1234 |
status = encrypt_PGP_in_pieces(session, src, keys, msg, flags);
|
vb@38
|
1235 |
break;
|
vb@38
|
1236 |
|
vb@336
|
1237 |
/* case PEP_enc_PEP:
|
vb@81
|
1238 |
// TODO: implement
|
vb@336
|
1239 |
NOT_IMPLEMENTED */
|
vb@81
|
1240 |
|
vb@38
|
1241 |
default:
|
vb@38
|
1242 |
assert(0);
|
vb@63
|
1243 |
status = PEP_ILLEGAL_VALUE;
|
vb@63
|
1244 |
goto pep_error;
|
vb@37
|
1245 |
}
|
krista@1427
|
1246 |
|
Edouard@392
|
1247 |
if (status == PEP_OUT_OF_MEMORY)
|
Edouard@392
|
1248 |
goto enomem;
|
krista@1427
|
1249 |
|
vb@480
|
1250 |
if (status != PEP_STATUS_OK)
|
Edouard@392
|
1251 |
goto pep_error;
|
vb@37
|
1252 |
}
|
vb@37
|
1253 |
|
vb@37
|
1254 |
free_stringlist(keys);
|
vb@63
|
1255 |
|
vb@469
|
1256 |
if (msg && msg->shortmsg == NULL) {
|
vb@64
|
1257 |
msg->shortmsg = strdup("pEp");
|
vb@469
|
1258 |
assert(msg->shortmsg);
|
krista@853
|
1259 |
if (msg->shortmsg == NULL)
|
krista@853
|
1260 |
goto enomem;
|
vb@469
|
1261 |
}
|
vb@64
|
1262 |
|
edouard@1542
|
1263 |
if (msg) {
|
vb@311
|
1264 |
decorate_message(msg, PEP_rating_undefined, NULL);
|
edouard@1542
|
1265 |
if (src->id) {
|
edouard@1542
|
1266 |
msg->id = strdup(src->id);
|
edouard@1542
|
1267 |
assert(msg->id);
|
edouard@1542
|
1268 |
if (msg->id == NULL)
|
edouard@1542
|
1269 |
goto enomem;
|
edouard@1542
|
1270 |
}
|
edouard@1542
|
1271 |
}
|
vb@311
|
1272 |
|
vb@63
|
1273 |
*dst = msg;
|
vb@299
|
1274 |
return status;
|
vb@63
|
1275 |
|
vb@63
|
1276 |
enomem:
|
vb@63
|
1277 |
status = PEP_OUT_OF_MEMORY;
|
vb@63
|
1278 |
|
vb@63
|
1279 |
pep_error:
|
vb@63
|
1280 |
free_stringlist(keys);
|
vb@63
|
1281 |
free_message(msg);
|
vb@63
|
1282 |
|
vb@37
|
1283 |
return status;
|
vb@37
|
1284 |
}
|
vb@37
|
1285 |
|
krista@995
|
1286 |
DYNAMIC_API PEP_STATUS encrypt_message_for_self(
|
krista@992
|
1287 |
PEP_SESSION session,
|
krista@992
|
1288 |
pEp_identity* target_id,
|
krista@992
|
1289 |
message *src,
|
krista@992
|
1290 |
message **dst,
|
markus@1633
|
1291 |
PEP_enc_format enc_format,
|
markus@1633
|
1292 |
PEP_encrypt_flags_t flags
|
krista@992
|
1293 |
)
|
krista@992
|
1294 |
{
|
krista@992
|
1295 |
PEP_STATUS status = PEP_STATUS_OK;
|
krista@992
|
1296 |
message * msg = NULL;
|
krista@992
|
1297 |
stringlist_t * keys = NULL;
|
krista@992
|
1298 |
|
krista@992
|
1299 |
assert(session);
|
krista@992
|
1300 |
assert(src);
|
krista@992
|
1301 |
assert(dst);
|
krista@992
|
1302 |
assert(enc_format != PEP_enc_none);
|
krista@992
|
1303 |
|
krista@992
|
1304 |
if (!(session && src && dst && enc_format != PEP_enc_none))
|
krista@992
|
1305 |
return PEP_ILLEGAL_VALUE;
|
krista@992
|
1306 |
|
krista@992
|
1307 |
if (src->dir == PEP_dir_incoming)
|
krista@992
|
1308 |
return PEP_ILLEGAL_VALUE;
|
krista@1427
|
1309 |
|
krista@992
|
1310 |
determine_encryption_format(src);
|
krista@992
|
1311 |
if (src->enc_format != PEP_enc_none)
|
krista@992
|
1312 |
return PEP_ILLEGAL_VALUE;
|
krista@992
|
1313 |
|
krista@995
|
1314 |
status = myself(session, target_id);
|
krista@995
|
1315 |
if (status != PEP_STATUS_OK)
|
krista@995
|
1316 |
goto pep_error;
|
krista@995
|
1317 |
|
krista@992
|
1318 |
*dst = NULL;
|
krista@992
|
1319 |
|
krista@1427
|
1320 |
|
krista@992
|
1321 |
PEP_STATUS _status = update_identity(session, target_id);
|
krista@992
|
1322 |
if (_status != PEP_STATUS_OK) {
|
krista@992
|
1323 |
status = _status;
|
krista@992
|
1324 |
goto pep_error;
|
krista@992
|
1325 |
}
|
krista@992
|
1326 |
|
krista@994
|
1327 |
char* target_fpr = target_id->fpr;
|
krista@994
|
1328 |
if (!target_fpr)
|
krista@994
|
1329 |
return PEP_KEY_NOT_FOUND; // FIXME: Error condition
|
krista@1685
|
1330 |
|
krista@994
|
1331 |
keys = new_stringlist(target_fpr);
|
krista@1685
|
1332 |
|
krista@1640
|
1333 |
/* KG: did we ever do this??? */
|
krista@1640
|
1334 |
if (!(flags & PEP_encrypt_flag_force_no_attached_key))
|
krista@1685
|
1335 |
_attach_key(session, target_fpr, src);
|
krista@1427
|
1336 |
|
krista@992
|
1337 |
msg = clone_to_empty_message(src);
|
krista@992
|
1338 |
if (msg == NULL)
|
krista@992
|
1339 |
goto enomem;
|
krista@992
|
1340 |
|
krista@992
|
1341 |
switch (enc_format) {
|
krista@992
|
1342 |
case PEP_enc_PGP_MIME:
|
krista@992
|
1343 |
case PEP_enc_PEP: // BUG: should be implemented extra
|
krista@1639
|
1344 |
status = encrypt_PGP_MIME(session, src, keys, msg, flags);
|
krista@992
|
1345 |
break;
|
krista@992
|
1346 |
|
krista@992
|
1347 |
case PEP_enc_pieces:
|
krista@1639
|
1348 |
status = encrypt_PGP_in_pieces(session, src, keys, msg, flags);
|
krista@992
|
1349 |
break;
|
krista@992
|
1350 |
|
krista@992
|
1351 |
/* case PEP_enc_PEP:
|
krista@1641
|
1352 |
NOT_IMPLEMENTED */
|
krista@992
|
1353 |
// TODO: implement
|
krista@992
|
1354 |
|
krista@992
|
1355 |
default:
|
krista@992
|
1356 |
assert(0);
|
krista@992
|
1357 |
status = PEP_ILLEGAL_VALUE;
|
krista@992
|
1358 |
goto pep_error;
|
krista@992
|
1359 |
}
|
krista@1427
|
1360 |
|
krista@992
|
1361 |
if (status == PEP_OUT_OF_MEMORY)
|
krista@992
|
1362 |
goto enomem;
|
krista@1427
|
1363 |
|
krista@992
|
1364 |
if (status != PEP_STATUS_OK)
|
krista@992
|
1365 |
goto pep_error;
|
krista@992
|
1366 |
|
krista@994
|
1367 |
if (msg && msg->shortmsg == NULL) {
|
krista@994
|
1368 |
msg->shortmsg = strdup("pEp");
|
krista@994
|
1369 |
assert(msg->shortmsg);
|
krista@994
|
1370 |
if (msg->shortmsg == NULL)
|
krista@994
|
1371 |
goto enomem;
|
krista@994
|
1372 |
}
|
krista@992
|
1373 |
|
edouard@1542
|
1374 |
if (msg) {
|
edouard@1542
|
1375 |
if (src->id) {
|
edouard@1542
|
1376 |
msg->id = strdup(src->id);
|
edouard@1542
|
1377 |
assert(msg->id);
|
edouard@1542
|
1378 |
if (msg->id == NULL)
|
edouard@1542
|
1379 |
goto enomem;
|
edouard@1542
|
1380 |
}
|
edouard@1542
|
1381 |
}
|
edouard@1542
|
1382 |
|
krista@992
|
1383 |
*dst = msg;
|
krista@992
|
1384 |
return status;
|
krista@992
|
1385 |
|
krista@992
|
1386 |
enomem:
|
krista@992
|
1387 |
status = PEP_OUT_OF_MEMORY;
|
krista@992
|
1388 |
|
krista@992
|
1389 |
pep_error:
|
krista@992
|
1390 |
free_stringlist(keys);
|
krista@992
|
1391 |
free_message(msg);
|
krista@992
|
1392 |
|
krista@992
|
1393 |
return status;
|
krista@992
|
1394 |
}
|
krista@992
|
1395 |
|
vb@781
|
1396 |
static bool is_a_pEpmessage(const message *msg)
|
vb@781
|
1397 |
{
|
vb@781
|
1398 |
for (stringpair_list_t *i = msg->opt_fields; i && i->value ; i=i->next) {
|
vb@781
|
1399 |
if (strcasecmp(i->value->key, "X-pEp-Version") == 0)
|
vb@781
|
1400 |
return true;
|
vb@781
|
1401 |
}
|
vb@781
|
1402 |
return false;
|
vb@781
|
1403 |
}
|
vb@781
|
1404 |
|
vb@781
|
1405 |
// update comm_type to pEp_ct_pEp if needed
|
vb@781
|
1406 |
|
Edouard@858
|
1407 |
static PEP_STATUS _update_identity_for_incoming_message(
|
vb@781
|
1408 |
PEP_SESSION session,
|
vb@781
|
1409 |
const message *src
|
vb@781
|
1410 |
)
|
vb@781
|
1411 |
{
|
Edouard@858
|
1412 |
PEP_STATUS status;
|
Edouard@858
|
1413 |
if (src->from && src->from->address) {
|
Edouard@858
|
1414 |
status = update_identity(session, src->from);
|
krista@1192
|
1415 |
if (status == PEP_STATUS_OK
|
Edouard@858
|
1416 |
&& is_a_pEpmessage(src)
|
vb@781
|
1417 |
&& src->from->comm_type >= PEP_ct_OpenPGP_unconfirmed
|
vb@781
|
1418 |
&& src->from->comm_type != PEP_ct_pEp_unconfirmed
|
vb@781
|
1419 |
&& src->from->comm_type != PEP_ct_pEp)
|
vb@781
|
1420 |
{
|
vb@781
|
1421 |
src->from->comm_type |= PEP_ct_pEp_unconfirmed;
|
Edouard@858
|
1422 |
status = update_identity(session, src->from);
|
vb@781
|
1423 |
}
|
Edouard@858
|
1424 |
return status;
|
vb@781
|
1425 |
}
|
Edouard@858
|
1426 |
return PEP_ILLEGAL_VALUE;
|
vb@781
|
1427 |
}
|
vb@781
|
1428 |
|
krista@1397
|
1429 |
|
krista@1397
|
1430 |
PEP_STATUS _get_detached_signature(message* msg, bloblist_t** signature_blob) {
|
krista@1397
|
1431 |
bloblist_t* attach_curr = msg->attachments;
|
krista@1427
|
1432 |
|
krista@1427
|
1433 |
*signature_blob = NULL;
|
krista@1427
|
1434 |
|
krista@1397
|
1435 |
while (attach_curr) {
|
krista@1427
|
1436 |
if (strcasecmp(attach_curr->mime_type, "application/pgp-signature") == 0) {
|
krista@1397
|
1437 |
*signature_blob = attach_curr;
|
krista@1397
|
1438 |
break;
|
krista@1397
|
1439 |
}
|
krista@1397
|
1440 |
attach_curr = attach_curr->next;
|
krista@1397
|
1441 |
}
|
krista@1427
|
1442 |
|
krista@1427
|
1443 |
return PEP_STATUS_OK;
|
krista@1427
|
1444 |
}
|
krista@1427
|
1445 |
|
krista@1427
|
1446 |
PEP_STATUS _get_signed_text(const char* ptext, const size_t psize,
|
krista@1427
|
1447 |
char** stext, size_t* ssize) {
|
krista@1427
|
1448 |
|
krista@1427
|
1449 |
char* signed_boundary = NULL;
|
krista@1427
|
1450 |
char* signpost = strstr(ptext, "Content-Type: multipart/signed");
|
krista@1427
|
1451 |
|
krista@1427
|
1452 |
*ssize = 0;
|
krista@1427
|
1453 |
*stext = NULL;
|
krista@1427
|
1454 |
|
krista@1427
|
1455 |
if (!signpost)
|
krista@1427
|
1456 |
return PEP_UNKNOWN_ERROR;
|
krista@1427
|
1457 |
|
krista@1427
|
1458 |
char* curr_line = signpost;
|
krista@1427
|
1459 |
// const char* end_text = ptext + psize;
|
krista@1427
|
1460 |
const char* boundary_key = "boundary=\"";
|
krista@1427
|
1461 |
const size_t BOUNDARY_KEY_SIZE = 10;
|
krista@1427
|
1462 |
|
krista@1427
|
1463 |
char* start_boundary = strstr(curr_line, boundary_key);
|
krista@1427
|
1464 |
if (!start_boundary)
|
krista@1427
|
1465 |
return PEP_UNKNOWN_ERROR;
|
krista@1427
|
1466 |
|
krista@1427
|
1467 |
start_boundary += BOUNDARY_KEY_SIZE;
|
krista@1427
|
1468 |
|
krista@1427
|
1469 |
char* end_boundary = strstr(start_boundary, "\"");
|
krista@1427
|
1470 |
|
krista@1427
|
1471 |
if (!end_boundary)
|
krista@1427
|
1472 |
return PEP_UNKNOWN_ERROR;
|
krista@1427
|
1473 |
|
krista@1427
|
1474 |
size_t boundary_strlen = (end_boundary - start_boundary) + 2;
|
krista@1427
|
1475 |
|
krista@1427
|
1476 |
signed_boundary = calloc(1, boundary_strlen + 1);
|
krista@1427
|
1477 |
strlcpy(signed_boundary, "--", boundary_strlen + 1);
|
krista@1427
|
1478 |
strlcat(signed_boundary, start_boundary, boundary_strlen + 1);
|
krista@1427
|
1479 |
|
krista@1427
|
1480 |
start_boundary = strstr(end_boundary, signed_boundary);
|
krista@1427
|
1481 |
|
krista@1427
|
1482 |
if (!start_boundary)
|
krista@1427
|
1483 |
return PEP_UNKNOWN_ERROR;
|
krista@1427
|
1484 |
|
krista@1427
|
1485 |
start_boundary += boundary_strlen;
|
krista@1427
|
1486 |
|
krista@1427
|
1487 |
while (*start_boundary == '\n')
|
krista@1427
|
1488 |
start_boundary++;
|
krista@1427
|
1489 |
|
krista@1427
|
1490 |
end_boundary = strstr(start_boundary + boundary_strlen, signed_boundary);
|
krista@1427
|
1491 |
|
krista@1427
|
1492 |
if (!end_boundary)
|
krista@1427
|
1493 |
return PEP_UNKNOWN_ERROR;
|
krista@1427
|
1494 |
|
krista@1427
|
1495 |
end_boundary--; // See RFC3156 section 5...
|
krista@1427
|
1496 |
|
krista@1427
|
1497 |
*ssize = end_boundary - start_boundary;
|
krista@1427
|
1498 |
*stext = start_boundary;
|
krista@1427
|
1499 |
free(signed_boundary);
|
krista@1427
|
1500 |
|
krista@1397
|
1501 |
return PEP_STATUS_OK;
|
krista@1397
|
1502 |
}
|
krista@1397
|
1503 |
|
krista@1484
|
1504 |
PEP_STATUS combine_keylists(PEP_SESSION session, stringlist_t** verify_in,
|
krista@1484
|
1505 |
stringlist_t** keylist_in_out,
|
krista@1484
|
1506 |
pEp_identity* from) {
|
krista@1484
|
1507 |
|
krista@1484
|
1508 |
if (!verify_in || !(*verify_in)) // this isn't really a problem.
|
krista@1484
|
1509 |
return PEP_STATUS_OK;
|
krista@1484
|
1510 |
|
krista@1484
|
1511 |
stringlist_t* orig_verify = *verify_in;
|
krista@1484
|
1512 |
|
roker@1559
|
1513 |
stringlist_t* verify_curr = NULL;
|
roker@1559
|
1514 |
stringlist_t* from_keys = NULL;
|
krista@1484
|
1515 |
|
krista@1484
|
1516 |
/* FIXME: what to do if head needs to be null */
|
krista@1484
|
1517 |
PEP_STATUS status = find_keys(session, from->address, &from_keys);
|
krista@1484
|
1518 |
|
krista@1484
|
1519 |
stringlist_t* from_fpr_node = NULL;
|
krista@1484
|
1520 |
stringlist_t* from_curr;
|
krista@1484
|
1521 |
|
krista@1484
|
1522 |
for (from_curr = from_keys; from_curr; from_curr = from_curr->next) {
|
krista@1484
|
1523 |
for (verify_curr = orig_verify; verify_curr; verify_curr = verify_curr->next) {
|
krista@1484
|
1524 |
if (from_curr->value && verify_curr->value &&
|
edouard@1573
|
1525 |
_same_fpr(from_curr->value, strlen(from_curr->value),
|
edouard@1573
|
1526 |
verify_curr->value, strlen(verify_curr->value))) {
|
krista@1484
|
1527 |
from_fpr_node = from_curr;
|
krista@1484
|
1528 |
break;
|
krista@1484
|
1529 |
}
|
krista@1484
|
1530 |
}
|
krista@1484
|
1531 |
}
|
krista@1484
|
1532 |
|
krista@1484
|
1533 |
if (!from_fpr_node) {
|
krista@1484
|
1534 |
status = PEP_KEY_NOT_FOUND;
|
krista@1484
|
1535 |
goto free;
|
krista@1484
|
1536 |
}
|
krista@1484
|
1537 |
|
krista@1484
|
1538 |
verify_curr = orig_verify;
|
krista@1484
|
1539 |
|
krista@1484
|
1540 |
/* put "from" signer at the beginning of the list */
|
edouard@1573
|
1541 |
if (!_same_fpr(orig_verify->value, strlen(orig_verify->value),
|
edouard@1573
|
1542 |
from_fpr_node->value, strlen(from_fpr_node->value))) {
|
krista@1484
|
1543 |
orig_verify = stringlist_delete(orig_verify, from_fpr_node->value);
|
krista@1484
|
1544 |
verify_curr = new_stringlist(from_fpr_node->value);
|
krista@1484
|
1545 |
verify_curr->next = orig_verify;
|
krista@1484
|
1546 |
}
|
krista@1484
|
1547 |
|
krista@1484
|
1548 |
/* append keylist to signers */
|
krista@1484
|
1549 |
if (keylist_in_out && *keylist_in_out && (*keylist_in_out)->value) {
|
krista@1484
|
1550 |
stringlist_t** tail_pp = &verify_curr->next;
|
krista@1484
|
1551 |
|
krista@1484
|
1552 |
while (*tail_pp) {
|
krista@1484
|
1553 |
tail_pp = &((*tail_pp)->next);
|
krista@1484
|
1554 |
}
|
krista@1615
|
1555 |
stringlist_t* second_list = *keylist_in_out;
|
krista@1615
|
1556 |
if (second_list) {
|
krista@1615
|
1557 |
char* listhead_val = second_list->value;
|
krista@1615
|
1558 |
if (!listhead_val || listhead_val[0] == '\0') {
|
krista@1615
|
1559 |
/* remove head, basically. This can happen when,
|
krista@1615
|
1560 |
for example, the signature is detached and
|
krista@1615
|
1561 |
verification is not seen directly after
|
krista@1615
|
1562 |
decryption, so no signer is presumed in
|
krista@1615
|
1563 |
the first construction of the keylist */
|
krista@1615
|
1564 |
*keylist_in_out = (*keylist_in_out)->next;
|
krista@1615
|
1565 |
second_list->next = NULL;
|
krista@1615
|
1566 |
free_stringlist(second_list);
|
krista@1615
|
1567 |
}
|
krista@1615
|
1568 |
}
|
krista@1484
|
1569 |
*tail_pp = *keylist_in_out;
|
krista@1484
|
1570 |
}
|
krista@1484
|
1571 |
|
krista@1484
|
1572 |
*keylist_in_out = verify_curr;
|
krista@1484
|
1573 |
|
krista@1484
|
1574 |
status = PEP_STATUS_OK;
|
krista@1484
|
1575 |
|
krista@1484
|
1576 |
free:
|
krista@1484
|
1577 |
free_stringlist(from_keys);
|
roker@1559
|
1578 |
return status;
|
krista@1484
|
1579 |
}
|
krista@1484
|
1580 |
|
krista@1484
|
1581 |
|
Edouard@741
|
1582 |
DYNAMIC_API PEP_STATUS _decrypt_message(
|
vb@37
|
1583 |
PEP_SESSION session,
|
vb@113
|
1584 |
message *src,
|
vb@241
|
1585 |
message **dst,
|
vb@251
|
1586 |
stringlist_t **keylist,
|
vb@1004
|
1587 |
PEP_rating *rating,
|
krista@1427
|
1588 |
PEP_decrypt_flags_t *flags,
|
Edouard@741
|
1589 |
identity_list **private_il
|
vb@37
|
1590 |
)
|
vb@37
|
1591 |
{
|
vb@37
|
1592 |
PEP_STATUS status = PEP_STATUS_OK;
|
vb@261
|
1593 |
PEP_STATUS decrypt_status = PEP_CANNOT_DECRYPT_UNKNOWN;
|
vb@73
|
1594 |
message *msg = NULL;
|
vb@112
|
1595 |
char *ctext;
|
vb@112
|
1596 |
size_t csize;
|
vb@269
|
1597 |
char *ptext = NULL;
|
vb@112
|
1598 |
size_t psize;
|
vb@241
|
1599 |
stringlist_t *_keylist = NULL;
|
vb@37
|
1600 |
|
vb@74
|
1601 |
assert(session);
|
vb@74
|
1602 |
assert(src);
|
vb@74
|
1603 |
assert(dst);
|
vb@241
|
1604 |
assert(keylist);
|
vb@1004
|
1605 |
assert(rating);
|
Edouard@739
|
1606 |
assert(flags);
|
vb@73
|
1607 |
|
vb@1004
|
1608 |
if (!(session && src && dst && keylist && rating && flags))
|
vb@191
|
1609 |
return PEP_ILLEGAL_VALUE;
|
vb@191
|
1610 |
|
Edouard@739
|
1611 |
*flags = 0;
|
Edouard@739
|
1612 |
|
Edouard@734
|
1613 |
// Private key in unencrypted mail are ignored -> NULL
|
Edouard@734
|
1614 |
bool imported_keys = import_attached_keys(session, src, NULL);
|
Edouard@728
|
1615 |
|
Edouard@728
|
1616 |
// Update src->from in case we just imported a key
|
Edouard@728
|
1617 |
// we would need to check signature
|
Edouard@858
|
1618 |
status = _update_identity_for_incoming_message(session, src);
|
Edouard@858
|
1619 |
if(status != PEP_STATUS_OK)
|
Edouard@858
|
1620 |
return status;
|
Edouard@858
|
1621 |
|
krista@1397
|
1622 |
// Get detached signature, if any
|
krista@1397
|
1623 |
bloblist_t* detached_sig = NULL;
|
krista@1397
|
1624 |
char* dsig_text = NULL;
|
krista@1397
|
1625 |
size_t dsig_size = 0;
|
krista@1397
|
1626 |
status = _get_detached_signature(src, &detached_sig);
|
krista@1397
|
1627 |
if (detached_sig) {
|
krista@1397
|
1628 |
dsig_text = detached_sig->value;
|
krista@1397
|
1629 |
dsig_size = detached_sig->size;
|
krista@1397
|
1630 |
}
|
krista@1427
|
1631 |
|
vb@259
|
1632 |
PEP_cryptotech crypto = determine_encryption_format(src);
|
vb@259
|
1633 |
|
vb@74
|
1634 |
*dst = NULL;
|
vb@251
|
1635 |
*keylist = NULL;
|
vb@1004
|
1636 |
*rating = PEP_rating_undefined;
|
krista@1427
|
1637 |
|
vb@261
|
1638 |
switch (src->enc_format) {
|
vb@269
|
1639 |
case PEP_enc_none:
|
vb@1004
|
1640 |
*rating = PEP_rating_unencrypted;
|
vb@731
|
1641 |
if (imported_keys)
|
vb@731
|
1642 |
remove_attached_keys(src);
|
edouard@1603
|
1643 |
if(session->sync_session->inject_sync_msg){
|
edouard@1165
|
1644 |
status = receive_DeviceState_msg(session, src, *rating, *keylist);
|
krista@1427
|
1645 |
if (status == PEP_MESSAGE_CONSUME ||
|
edouard@1369
|
1646 |
status == PEP_MESSAGE_IGNORE) {
|
vb@1134
|
1647 |
free_message(msg);
|
vb@1134
|
1648 |
msg = NULL;
|
edouard@1369
|
1649 |
*flags |= (status == PEP_MESSAGE_IGNORE) ?
|
edouard@1369
|
1650 |
PEP_decrypt_flag_ignore :
|
edouard@1369
|
1651 |
PEP_decrypt_flag_consume;
|
vb@1134
|
1652 |
}
|
vb@1134
|
1653 |
else if (status != PEP_STATUS_OK) {
|
vb@1134
|
1654 |
return status;
|
vb@1134
|
1655 |
}
|
vb@1099
|
1656 |
}
|
krista@1484
|
1657 |
|
krista@1484
|
1658 |
char* slong = src->longmsg;
|
krista@1484
|
1659 |
char* sform = src->longmsg_formatted;
|
krista@1484
|
1660 |
bloblist_t* satt = src->attachments;
|
roker@1563
|
1661 |
|
krista@1484
|
1662 |
if ((!slong || slong[0] == '\0')
|
krista@1484
|
1663 |
&& (!sform || sform[0] == '\0')) {
|
krista@1484
|
1664 |
if (satt) {
|
krista@1484
|
1665 |
const char* inner_mime_type = satt->mime_type;
|
krista@1484
|
1666 |
if (strcasecmp(inner_mime_type, "text/plain") == 0) {
|
krista@1484
|
1667 |
free(slong); /* in case of "" */
|
roker@1563
|
1668 |
src->longmsg = strndup(satt->value, satt->size); // N.B.: longmsg might be shorter, if attachment contains NUL bytes which are not allowed in text/plain!
|
roker@1563
|
1669 |
|
krista@1484
|
1670 |
bloblist_t* next_node = satt->next;
|
krista@1484
|
1671 |
if (next_node) {
|
krista@1484
|
1672 |
inner_mime_type = next_node->mime_type;
|
krista@1484
|
1673 |
if (strcasecmp(inner_mime_type, "text/html") == 0) {
|
krista@1484
|
1674 |
free(sform);
|
roker@1563
|
1675 |
src->longmsg_formatted = strndup(next_node->value, next_node->size); // N.B.: longmsg might be shorter, if attachment contains NUL bytes which are not allowed in text/plain!
|
krista@1484
|
1676 |
}
|
krista@1484
|
1677 |
}
|
krista@1484
|
1678 |
}
|
krista@1484
|
1679 |
else if (strcasecmp(inner_mime_type, "text/html") == 0) {
|
krista@1484
|
1680 |
free(sform);
|
roker@1563
|
1681 |
src->longmsg_formatted = strndup(satt->value, satt->size); // N.B.: longmsg might be shorter, if attachment contains NUL bytes which are not allowed in text/plain!
|
roker@1563
|
1682 |
}
|
krista@1484
|
1683 |
}
|
roker@1563
|
1684 |
}
|
krista@1484
|
1685 |
|
vb@301
|
1686 |
return PEP_UNENCRYPTED;
|
vb@269
|
1687 |
|
vb@261
|
1688 |
case PEP_enc_PGP_MIME:
|
vb@301
|
1689 |
ctext = src->attachments->next->value;
|
vb@269
|
1690 |
csize = src->attachments->next->size;
|
vb@261
|
1691 |
break;
|
vb@261
|
1692 |
|
edouard@1557
|
1693 |
case PEP_enc_PGP_MIME_Outlook1:
|
edouard@1557
|
1694 |
ctext = src->attachments->value;
|
edouard@1557
|
1695 |
csize = src->attachments->size;
|
edouard@1557
|
1696 |
break;
|
edouard@1557
|
1697 |
|
vb@261
|
1698 |
case PEP_enc_pieces:
|
vb@261
|
1699 |
ctext = src->longmsg;
|
vb@261
|
1700 |
csize = strlen(ctext);
|
vb@261
|
1701 |
break;
|
vb@261
|
1702 |
|
vb@261
|
1703 |
default:
|
vb@261
|
1704 |
NOT_IMPLEMENTED
|
vb@259
|
1705 |
}
|
Edouard@431
|
1706 |
status = cryptotech[crypto].decrypt_and_verify(session, ctext,
|
krista@1427
|
1707 |
csize, dsig_text, dsig_size,
|
krista@1397
|
1708 |
&ptext, &psize, &_keylist);
|
edouard@1195
|
1709 |
if (status > PEP_CANNOT_DECRYPT_UNKNOWN){
|
edouard@1271
|
1710 |
goto pep_error;
|
edouard@1271
|
1711 |
}
|
edouard@1271
|
1712 |
|
edouard@1273
|
1713 |
decrypt_status = status;
|
edouard@1273
|
1714 |
|
edouard@1271
|
1715 |
if (status == PEP_DECRYPT_NO_KEY){
|
edouard@1299
|
1716 |
PEP_STATUS sync_status = inject_DeviceState_event(session, CannotDecrypt, NULL, NULL);
|
edouard@1299
|
1717 |
if (sync_status == PEP_OUT_OF_MEMORY){
|
edouard@1299
|
1718 |
status = PEP_OUT_OF_MEMORY;
|
edouard@1273
|
1719 |
goto pep_error;
|
edouard@1299
|
1720 |
}
|
edouard@1195
|
1721 |
}
|
vb@113
|
1722 |
|
krista@1427
|
1723 |
bool imported_private_key_address = false;
|
Edouard@728
|
1724 |
|
vb@256
|
1725 |
if (ptext) {
|
vb@256
|
1726 |
switch (src->enc_format) {
|
vb@256
|
1727 |
case PEP_enc_PGP_MIME:
|
edouard@1557
|
1728 |
case PEP_enc_PGP_MIME_Outlook1:
|
vb@269
|
1729 |
status = mime_decode_message(ptext, psize, &msg);
|
vb@113
|
1730 |
if (status != PEP_STATUS_OK)
|
roker@1563
|
1731 |
goto pep_error;
|
krista@1484
|
1732 |
|
krista@1484
|
1733 |
char* mlong = msg->longmsg;
|
krista@1484
|
1734 |
char* mform = msg->longmsg_formatted;
|
krista@1484
|
1735 |
bloblist_t* matt = msg->attachments;
|
roker@1563
|
1736 |
|
krista@1484
|
1737 |
if ((!mlong || mlong[0] == '\0')
|
krista@1484
|
1738 |
&& (!mform || mform[0] == '\0')) {
|
krista@1484
|
1739 |
if (matt) {
|
krista@1484
|
1740 |
const char* inner_mime_type = matt->mime_type;
|
krista@1484
|
1741 |
if (strcasecmp(inner_mime_type, "text/plain") == 0) {
|
krista@1484
|
1742 |
free(mlong); /* in case of "" */
|
roker@1563
|
1743 |
msg->longmsg = strndup(matt->value, matt->size);
|
roker@1563
|
1744 |
|
krista@1484
|
1745 |
bloblist_t* next_node = matt->next;
|
krista@1484
|
1746 |
if (next_node) {
|
krista@1484
|
1747 |
inner_mime_type = next_node->mime_type;
|
krista@1484
|
1748 |
if (strcasecmp(inner_mime_type, "text/html") == 0) {
|
krista@1484
|
1749 |
free(mform);
|
roker@1563
|
1750 |
msg->longmsg_formatted = strndup(next_node->value, next_node->size);
|
krista@1484
|
1751 |
}
|
krista@1484
|
1752 |
}
|
krista@1484
|
1753 |
}
|
krista@1484
|
1754 |
else if (strcasecmp(inner_mime_type, "text/html") == 0) {
|
krista@1484
|
1755 |
free(mform);
|
roker@1563
|
1756 |
msg->longmsg_formatted = strndup(matt->value, matt->size);
|
roker@1563
|
1757 |
}
|
krista@1484
|
1758 |
}
|
krista@1484
|
1759 |
if (msg->shortmsg) {
|
krista@1484
|
1760 |
free(src->shortmsg);
|
krista@1484
|
1761 |
src->shortmsg = strdup(msg->shortmsg);
|
krista@1484
|
1762 |
}
|
roker@1563
|
1763 |
}
|
krista@1484
|
1764 |
|
krista@1484
|
1765 |
if (decrypt_status != PEP_DECRYPTED_AND_VERIFIED) {
|
krista@1484
|
1766 |
status = _get_detached_signature(msg, &detached_sig);
|
krista@1484
|
1767 |
if (decrypt_status == PEP_DECRYPTED && detached_sig) {
|
krista@1484
|
1768 |
dsig_text = detached_sig->value;
|
krista@1484
|
1769 |
dsig_size = detached_sig->size;
|
krista@1484
|
1770 |
size_t ssize = 0;
|
krista@1484
|
1771 |
char* stext = NULL;
|
krista@1484
|
1772 |
|
krista@1484
|
1773 |
status = _get_signed_text(ptext, psize, &stext, &ssize);
|
krista@1484
|
1774 |
stringlist_t *_verify_keylist = NULL;
|
krista@1484
|
1775 |
|
krista@1484
|
1776 |
if (ssize > 0 && stext) {
|
krista@1484
|
1777 |
status = cryptotech[crypto].verify_text(session, stext,
|
krista@1484
|
1778 |
ssize, dsig_text, dsig_size,
|
krista@1484
|
1779 |
&_verify_keylist);
|
krista@1484
|
1780 |
|
krista@1484
|
1781 |
if (status == PEP_VERIFIED || status == PEP_VERIFIED_AND_TRUSTED)
|
krista@1484
|
1782 |
decrypt_status = PEP_DECRYPTED_AND_VERIFIED;
|
krista@1484
|
1783 |
|
krista@1484
|
1784 |
status = combine_keylists(session, &_verify_keylist, &_keylist, src->from);
|
krista@1484
|
1785 |
}
|
krista@1427
|
1786 |
}
|
krista@1427
|
1787 |
}
|
vb@256
|
1788 |
break;
|
vb@256
|
1789 |
|
vb@256
|
1790 |
case PEP_enc_pieces:
|
vb@256
|
1791 |
msg = clone_to_empty_message(src);
|
vb@256
|
1792 |
if (msg == NULL)
|
vb@113
|
1793 |
goto enomem;
|
vb@113
|
1794 |
|
Edouard@882
|
1795 |
msg->longmsg = ptext;
|
Edouard@882
|
1796 |
ptext = NULL;
|
vb@256
|
1797 |
|
vb@256
|
1798 |
bloblist_t *_m = msg->attachments;
|
vb@320
|
1799 |
if (_m == NULL && src->attachments && src->attachments->value) {
|
vb@320
|
1800 |
msg->attachments = new_bloblist(NULL, 0, NULL, NULL);
|
vb@320
|
1801 |
_m = msg->attachments;
|
vb@320
|
1802 |
}
|
vb@320
|
1803 |
|
vb@256
|
1804 |
bloblist_t *_s;
|
Edouard@754
|
1805 |
for (_s = src->attachments; _s; _s = _s->next) {
|
Edouard@754
|
1806 |
if (_s->value == NULL && _s->size == 0){
|
Edouard@754
|
1807 |
_m = bloblist_add(_m, NULL, 0, _s->mime_type, _s->filename);
|
Edouard@754
|
1808 |
if (_m == NULL)
|
Edouard@754
|
1809 |
goto enomem;
|
Edouard@754
|
1810 |
|
Edouard@754
|
1811 |
}
|
Edouard@754
|
1812 |
else if (is_encrypted_attachment(_s)) {
|
vb@256
|
1813 |
stringlist_t *_keylist = NULL;
|
roker@862
|
1814 |
char *attctext = _s->value;
|
roker@862
|
1815 |
size_t attcsize = _s->size;
|
Edouard@431
|
1816 |
|
Edouard@842
|
1817 |
free(ptext);
|
Edouard@842
|
1818 |
ptext = NULL;
|
Edouard@842
|
1819 |
|
krista@1397
|
1820 |
// FIXME: What about attachments with separate sigs???
|
Edouard@431
|
1821 |
status = decrypt_and_verify(session, attctext, attcsize,
|
krista@1397
|
1822 |
NULL, 0,
|
krista@1397
|
1823 |
&ptext, &psize, &_keylist);
|
krista@1484
|
1824 |
free_stringlist(_keylist); // FIXME: Why do we do this?
|
vb@256
|
1825 |
|
vb@289
|
1826 |
if (ptext) {
|
vb@289
|
1827 |
if (is_encrypted_html_attachment(_s)) {
|
Edouard@882
|
1828 |
msg->longmsg_formatted = ptext;
|
Edouard@882
|
1829 |
ptext = NULL;
|
vb@289
|
1830 |
}
|
vb@289
|
1831 |
else {
|
roker@862
|
1832 |
static const char * const mime_type = "application/octet-stream";
|
roker@864
|
1833 |
char * const filename =
|
vb@289
|
1834 |
without_double_ending(_s->filename);
|
vb@289
|
1835 |
if (filename == NULL)
|
vb@289
|
1836 |
goto enomem;
|
vb@289
|
1837 |
|
Edouard@882
|
1838 |
_m = bloblist_add(_m, ptext, psize, mime_type,
|
vb@289
|
1839 |
filename);
|
roker@862
|
1840 |
free(filename);
|
vb@290
|
1841 |
if (_m == NULL)
|
vb@289
|
1842 |
goto enomem;
|
vb@290
|
1843 |
|
Edouard@882
|
1844 |
ptext = NULL;
|
Edouard@882
|
1845 |
|
vb@290
|
1846 |
if (msg->attachments == NULL)
|
vb@290
|
1847 |
msg->attachments = _m;
|
vb@289
|
1848 |
}
|
vb@256
|
1849 |
}
|
vb@256
|
1850 |
else {
|
vb@320
|
1851 |
char *copy = malloc(_s->size);
|
vb@350
|
1852 |
assert(copy);
|
vb@350
|
1853 |
if (copy == NULL)
|
vb@350
|
1854 |
goto enomem;
|
vb@320
|
1855 |
memcpy(copy, _s->value, _s->size);
|
vb@320
|
1856 |
_m = bloblist_add(_m, copy, _s->size, _s->mime_type, _s->filename);
|
vb@256
|
1857 |
if (_m == NULL)
|
vb@256
|
1858 |
goto enomem;
|
vb@256
|
1859 |
}
|
vb@256
|
1860 |
}
|
vb@320
|
1861 |
else {
|
vb@320
|
1862 |
char *copy = malloc(_s->size);
|
vb@350
|
1863 |
assert(copy);
|
vb@350
|
1864 |
if (copy == NULL)
|
vb@350
|
1865 |
goto enomem;
|
vb@320
|
1866 |
memcpy(copy, _s->value, _s->size);
|
vb@320
|
1867 |
_m = bloblist_add(_m, copy, _s->size, _s->mime_type, _s->filename);
|
vb@320
|
1868 |
if (_m == NULL)
|
vb@320
|
1869 |
goto enomem;
|
vb@320
|
1870 |
}
|
vb@256
|
1871 |
}
|
vb@256
|
1872 |
|
vb@256
|
1873 |
break;
|
vb@256
|
1874 |
|
vb@256
|
1875 |
default:
|
vb@256
|
1876 |
// BUG: must implement more
|
vb@256
|
1877 |
NOT_IMPLEMENTED
|
vb@256
|
1878 |
}
|
krista@1427
|
1879 |
|
vb@256
|
1880 |
switch (src->enc_format) {
|
vb@256
|
1881 |
case PEP_enc_PGP_MIME:
|
vb@256
|
1882 |
case PEP_enc_pieces:
|
edouard@1557
|
1883 |
case PEP_enc_PGP_MIME_Outlook1:
|
vb@256
|
1884 |
status = copy_fields(msg, src);
|
vb@256
|
1885 |
if (status != PEP_STATUS_OK)
|
vb@256
|
1886 |
goto pep_error;
|
vb@256
|
1887 |
|
vb@280
|
1888 |
if (src->shortmsg == NULL || strcmp(src->shortmsg, "pEp") == 0)
|
vb@256
|
1889 |
{
|
vb@256
|
1890 |
char * shortmsg;
|
vb@256
|
1891 |
char * longmsg;
|
vb@256
|
1892 |
|
krista@853
|
1893 |
int r = separate_short_and_long(msg->longmsg, &shortmsg,
|
vb@256
|
1894 |
&longmsg);
|
vb@256
|
1895 |
if (r == -1)
|
vb@256
|
1896 |
goto enomem;
|
vb@256
|
1897 |
|
vb@256
|
1898 |
free(msg->shortmsg);
|
vb@256
|
1899 |
free(msg->longmsg);
|
vb@256
|
1900 |
|
vb@256
|
1901 |
msg->shortmsg = shortmsg;
|
vb@256
|
1902 |
msg->longmsg = longmsg;
|
vb@256
|
1903 |
}
|
vb@256
|
1904 |
else {
|
vb@256
|
1905 |
msg->shortmsg = strdup(src->shortmsg);
|
vb@469
|
1906 |
assert(msg->shortmsg);
|
vb@256
|
1907 |
if (msg->shortmsg == NULL)
|
vb@256
|
1908 |
goto enomem;
|
vb@256
|
1909 |
}
|
vb@256
|
1910 |
break;
|
vb@256
|
1911 |
default:
|
krista@1484
|
1912 |
// BUG: must implement more
|
krista@1484
|
1913 |
NOT_IMPLEMENTED
|
vb@256
|
1914 |
}
|
krista@1427
|
1915 |
|
Edouard@734
|
1916 |
// check for private key in decrypted message attachement while inporting
|
Edouard@741
|
1917 |
identity_list *_private_il = NULL;
|
Edouard@741
|
1918 |
imported_keys = import_attached_keys(session, msg, &_private_il);
|
krista@1427
|
1919 |
if (_private_il &&
|
Edouard@741
|
1920 |
identity_list_length(_private_il) == 1 &&
|
Edouard@741
|
1921 |
_private_il->ident->address)
|
Edouard@728
|
1922 |
{
|
Edouard@741
|
1923 |
imported_private_key_address = true;
|
Edouard@728
|
1924 |
}
|
Edouard@741
|
1925 |
|
Edouard@741
|
1926 |
if(private_il && imported_private_key_address){
|
Edouard@741
|
1927 |
*private_il = _private_il;
|
Edouard@741
|
1928 |
}else{
|
Edouard@741
|
1929 |
free_identity_list(_private_il);
|
Edouard@741
|
1930 |
}
|
krista@1427
|
1931 |
|
Edouard@694
|
1932 |
if(decrypt_status == PEP_DECRYPTED){
|
Edouard@728
|
1933 |
|
Edouard@728
|
1934 |
// TODO optimize if import_attached_keys didn't import any key
|
krista@1427
|
1935 |
|
Edouard@431
|
1936 |
// In case message did decrypt, but no valid signature could be found
|
Edouard@431
|
1937 |
// then retry decrypt+verify after importing key.
|
Edouard@728
|
1938 |
|
Edouard@728
|
1939 |
// Update msg->from in case we just imported a key
|
Edouard@728
|
1940 |
// we would need to check signature
|
vb@781
|
1941 |
|
Edouard@861
|
1942 |
status = _update_identity_for_incoming_message(session, src);
|
Edouard@858
|
1943 |
if(status != PEP_STATUS_OK)
|
Edouard@858
|
1944 |
goto pep_error;
|
krista@1427
|
1945 |
|
Edouard@431
|
1946 |
char *re_ptext = NULL;
|
Edouard@431
|
1947 |
size_t re_psize;
|
krista@1427
|
1948 |
|
Edouard@431
|
1949 |
free_stringlist(_keylist);
|
Edouard@431
|
1950 |
_keylist = NULL;
|
vb@256
|
1951 |
|
Edouard@431
|
1952 |
status = cryptotech[crypto].decrypt_and_verify(session, ctext,
|
krista@1397
|
1953 |
csize, dsig_text, dsig_size, &re_ptext, &re_psize, &_keylist);
|
krista@1427
|
1954 |
|
Edouard@882
|
1955 |
free(re_ptext);
|
krista@1427
|
1956 |
|
Edouard@431
|
1957 |
if (status > PEP_CANNOT_DECRYPT_UNKNOWN)
|
Edouard@431
|
1958 |
goto pep_error;
|
krista@1427
|
1959 |
|
Edouard@431
|
1960 |
decrypt_status = status;
|
Edouard@431
|
1961 |
}
|
krista@1427
|
1962 |
|
vb@1004
|
1963 |
*rating = decrypt_rating(decrypt_status);
|
krista@1427
|
1964 |
|
vb@1004
|
1965 |
if (*rating > PEP_rating_mistrust) {
|
vb@1004
|
1966 |
PEP_rating kl_rating = PEP_rating_undefined;
|
krista@1427
|
1967 |
|
Edouard@431
|
1968 |
if (_keylist)
|
vb@1004
|
1969 |
kl_rating = keylist_rating(session, _keylist);
|
krista@1427
|
1970 |
|
vb@1004
|
1971 |
if (kl_rating <= PEP_rating_mistrust) {
|
vb@1004
|
1972 |
*rating = kl_rating;
|
Edouard@445
|
1973 |
}
|
vb@1004
|
1974 |
else if (*rating >= PEP_rating_reliable &&
|
vb@1004
|
1975 |
kl_rating < PEP_rating_reliable) {
|
vb@1004
|
1976 |
*rating = PEP_rating_unreliable;
|
Edouard@431
|
1977 |
}
|
vb@1004
|
1978 |
else if (*rating >= PEP_rating_reliable &&
|
vb@1004
|
1979 |
kl_rating >= PEP_rating_reliable) {
|
Edouard@431
|
1980 |
if (!(src->from && src->from->user_id && src->from->user_id[0])) {
|
vb@1004
|
1981 |
*rating = PEP_rating_unreliable;
|
Edouard@431
|
1982 |
}
|
Edouard@431
|
1983 |
else {
|
Edouard@431
|
1984 |
char *fpr = _keylist->value;
|
Edouard@431
|
1985 |
pEp_identity *_from = new_identity(src->from->address, fpr,
|
Edouard@431
|
1986 |
src->from->user_id, src->from->username);
|
Edouard@431
|
1987 |
if (_from == NULL)
|
Edouard@431
|
1988 |
goto enomem;
|
edouard@1156
|
1989 |
status = get_trust(session, _from);
|
krista@1615
|
1990 |
if (_from->comm_type != PEP_ct_unknown) {
|
krista@1615
|
1991 |
*rating = worst_rating(_rating(_from->comm_type, PEP_rating_undefined),
|
krista@1615
|
1992 |
kl_rating);
|
krista@1615
|
1993 |
}
|
Edouard@431
|
1994 |
free_identity(_from);
|
edouard@1156
|
1995 |
if (status == PEP_CANNOT_FIND_IDENTITY)
|
edouard@1156
|
1996 |
status = PEP_STATUS_OK;
|
Edouard@431
|
1997 |
if (status != PEP_STATUS_OK)
|
Edouard@431
|
1998 |
goto pep_error;
|
Edouard@431
|
1999 |
}
|
Edouard@431
|
2000 |
}
|
Edouard@431
|
2001 |
}
|
vb@113
|
2002 |
}
|
Edouard@745
|
2003 |
else
|
Edouard@745
|
2004 |
{
|
vb@1004
|
2005 |
*rating = decrypt_rating(decrypt_status);
|
Edouard@745
|
2006 |
goto pep_error;
|
Edouard@745
|
2007 |
}
|
vb@731
|
2008 |
|
Edouard@728
|
2009 |
// Case of own key imported from own trusted message
|
krista@1427
|
2010 |
if (// Message have been reliably decrypted
|
Edouard@728
|
2011 |
msg &&
|
vb@1004
|
2012 |
*rating >= PEP_rating_trusted &&
|
Edouard@728
|
2013 |
imported_private_key_address &&
|
Edouard@728
|
2014 |
// to is [own]
|
Edouard@728
|
2015 |
msg->to->ident->user_id &&
|
krista@1427
|
2016 |
strcmp(msg->to->ident->user_id, PEP_OWN_USERID) == 0
|
Edouard@729
|
2017 |
)
|
Edouard@728
|
2018 |
{
|
Edouard@738
|
2019 |
*flags |= PEP_decrypt_flag_own_private_key;
|
Edouard@728
|
2020 |
}
|
vb@113
|
2021 |
|
vb@731
|
2022 |
if (msg) {
|
vb@1004
|
2023 |
decorate_message(msg, *rating, _keylist);
|
vb@731
|
2024 |
if (imported_keys)
|
vb@731
|
2025 |
remove_attached_keys(msg);
|
edouard@1603
|
2026 |
if (*rating >= PEP_rating_reliable &&
|
edouard@1603
|
2027 |
session->sync_session->inject_sync_msg) {
|
edouard@1165
|
2028 |
status = receive_DeviceState_msg(session, msg, *rating, _keylist);
|
krista@1427
|
2029 |
if (status == PEP_MESSAGE_CONSUME ||
|
edouard@1369
|
2030 |
status == PEP_MESSAGE_IGNORE) {
|
vb@1099
|
2031 |
free_message(msg);
|
vb@1099
|
2032 |
msg = NULL;
|
edouard@1369
|
2033 |
*flags |= (status == PEP_MESSAGE_IGNORE) ?
|
edouard@1369
|
2034 |
PEP_decrypt_flag_ignore :
|
edouard@1369
|
2035 |
PEP_decrypt_flag_consume;
|
edouard@1355
|
2036 |
|
edouard@1355
|
2037 |
status = decrypt_status;
|
vb@1099
|
2038 |
}
|
vb@1099
|
2039 |
else if (status != PEP_STATUS_OK){
|
vb@1099
|
2040 |
goto pep_error;
|
vb@1099
|
2041 |
}
|
vb@1099
|
2042 |
}
|
edouard@1558
|
2043 |
}
|
edouard@1558
|
2044 |
if (msg) {
|
edouard@1542
|
2045 |
if (src->id) {
|
edouard@1542
|
2046 |
msg->id = strdup(src->id);
|
edouard@1542
|
2047 |
assert(msg->id);
|
edouard@1542
|
2048 |
if (msg->id == NULL)
|
edouard@1542
|
2049 |
goto enomem;
|
edouard@1542
|
2050 |
}
|
vb@731
|
2051 |
}
|
vb@235
|
2052 |
|
vb@74
|
2053 |
*dst = msg;
|
vb@241
|
2054 |
*keylist = _keylist;
|
vb@241
|
2055 |
|
vb@953
|
2056 |
return status;
|
vb@73
|
2057 |
|
vb@73
|
2058 |
enomem:
|
vb@73
|
2059 |
status = PEP_OUT_OF_MEMORY;
|
vb@73
|
2060 |
|
vb@73
|
2061 |
pep_error:
|
Edouard@882
|
2062 |
free(ptext);
|
vb@73
|
2063 |
free_message(msg);
|
vb@241
|
2064 |
free_stringlist(_keylist);
|
vb@39
|
2065 |
|
vb@37
|
2066 |
return status;
|
vb@37
|
2067 |
}
|
vb@37
|
2068 |
|
Edouard@741
|
2069 |
DYNAMIC_API PEP_STATUS decrypt_message(
|
Edouard@741
|
2070 |
PEP_SESSION session,
|
Edouard@741
|
2071 |
message *src,
|
Edouard@741
|
2072 |
message **dst,
|
Edouard@741
|
2073 |
stringlist_t **keylist,
|
vb@1004
|
2074 |
PEP_rating *rating,
|
krista@1427
|
2075 |
PEP_decrypt_flags_t *flags
|
Edouard@741
|
2076 |
)
|
Edouard@741
|
2077 |
{
|
vb@1004
|
2078 |
return _decrypt_message( session, src, dst, keylist, rating, flags, NULL );
|
Edouard@741
|
2079 |
}
|
Edouard@741
|
2080 |
|
Edouard@728
|
2081 |
DYNAMIC_API PEP_STATUS own_message_private_key_details(
|
Edouard@728
|
2082 |
PEP_SESSION session,
|
Edouard@728
|
2083 |
message *msg,
|
krista@1427
|
2084 |
pEp_identity **ident
|
Edouard@728
|
2085 |
)
|
Edouard@728
|
2086 |
{
|
Edouard@728
|
2087 |
assert(session);
|
Edouard@728
|
2088 |
assert(msg);
|
Edouard@728
|
2089 |
assert(ident);
|
Edouard@728
|
2090 |
|
Edouard@736
|
2091 |
if (!(session && msg && ident))
|
Edouard@728
|
2092 |
return PEP_ILLEGAL_VALUE;
|
Edouard@728
|
2093 |
|
krista@1427
|
2094 |
message *dst = NULL;
|
krista@956
|
2095 |
stringlist_t *keylist = NULL;
|
vb@1004
|
2096 |
PEP_rating rating;
|
krista@1427
|
2097 |
PEP_decrypt_flags_t flags;
|
Edouard@728
|
2098 |
|
Edouard@729
|
2099 |
*ident = NULL;
|
Edouard@729
|
2100 |
|
Edouard@740
|
2101 |
identity_list *private_il = NULL;
|
vb@1004
|
2102 |
PEP_STATUS status = _decrypt_message(session, msg, &dst, &keylist, &rating, &flags, &private_il);
|
vb@953
|
2103 |
free_message(dst);
|
vb@953
|
2104 |
free_stringlist(keylist);
|
Edouard@728
|
2105 |
|
Edouard@729
|
2106 |
if (status == PEP_STATUS_OK &&
|
Edouard@741
|
2107 |
flags & PEP_decrypt_flag_own_private_key &&
|
Edouard@741
|
2108 |
private_il)
|
Edouard@729
|
2109 |
{
|
Edouard@740
|
2110 |
*ident = identity_dup(private_il->ident);
|
Edouard@729
|
2111 |
}
|
Edouard@729
|
2112 |
|
Edouard@741
|
2113 |
free_identity_list(private_il);
|
Edouard@741
|
2114 |
|
Edouard@728
|
2115 |
return status;
|
Edouard@741
|
2116 |
|
Edouard@728
|
2117 |
}
|
Edouard@728
|
2118 |
|
Edouard@858
|
2119 |
static void _max_comm_type_from_identity_list(
|
krista@1427
|
2120 |
identity_list *identities,
|
Edouard@858
|
2121 |
PEP_SESSION session,
|
Edouard@858
|
2122 |
PEP_comm_type *max_comm_type,
|
Edouard@858
|
2123 |
bool *comm_type_determined
|
Edouard@858
|
2124 |
)
|
Edouard@858
|
2125 |
{
|
Edouard@858
|
2126 |
identity_list * il;
|
Edouard@858
|
2127 |
for (il = identities; il != NULL; il = il->next)
|
Edouard@858
|
2128 |
{
|
Edouard@858
|
2129 |
if (il->ident)
|
Edouard@858
|
2130 |
{
|
edouard@1385
|
2131 |
PEP_STATUS status = update_identity(session, il->ident);
|
Edouard@858
|
2132 |
if (status == PEP_STATUS_OK)
|
Edouard@858
|
2133 |
{
|
Edouard@858
|
2134 |
*max_comm_type = _get_comm_type(session, *max_comm_type,
|
Edouard@858
|
2135 |
il->ident);
|
Edouard@858
|
2136 |
*comm_type_determined = true;
|
Edouard@858
|
2137 |
}
|
Edouard@858
|
2138 |
}
|
Edouard@858
|
2139 |
}
|
Edouard@858
|
2140 |
}
|
Edouard@858
|
2141 |
|
vb@1004
|
2142 |
DYNAMIC_API PEP_STATUS outgoing_message_rating(
|
vb@190
|
2143 |
PEP_SESSION session,
|
vb@190
|
2144 |
message *msg,
|
vb@1004
|
2145 |
PEP_rating *rating
|
vb@190
|
2146 |
)
|
vb@190
|
2147 |
{
|
vb@190
|
2148 |
PEP_comm_type max_comm_type = PEP_ct_pEp;
|
vb@190
|
2149 |
bool comm_type_determined = false;
|
vb@190
|
2150 |
|
vb@190
|
2151 |
assert(session);
|
vb@190
|
2152 |
assert(msg);
|
vb@251
|
2153 |
assert(msg->dir == PEP_dir_outgoing);
|
vb@1004
|
2154 |
assert(rating);
|
vb@190
|
2155 |
|
vb@1004
|
2156 |
if (!(session && msg && rating))
|
vb@191
|
2157 |
return PEP_ILLEGAL_VALUE;
|
vb@191
|
2158 |
|
vb@1360
|
2159 |
if (msg->dir != PEP_dir_outgoing)
|
vb@251
|
2160 |
return PEP_ILLEGAL_VALUE;
|
vb@251
|
2161 |
|
vb@1004
|
2162 |
*rating = PEP_rating_undefined;
|
vb@190
|
2163 |
|
Edouard@858
|
2164 |
_max_comm_type_from_identity_list(msg->to, session,
|
Edouard@858
|
2165 |
&max_comm_type, &comm_type_determined);
|
vb@190
|
2166 |
|
Edouard@858
|
2167 |
_max_comm_type_from_identity_list(msg->cc, session,
|
Edouard@858
|
2168 |
&max_comm_type, &comm_type_determined);
|
krista@1427
|
2169 |
|
Edouard@858
|
2170 |
_max_comm_type_from_identity_list(msg->bcc, session,
|
Edouard@858
|
2171 |
&max_comm_type, &comm_type_determined);
|
vb@190
|
2172 |
|
vb@190
|
2173 |
if (comm_type_determined == false)
|
vb@1004
|
2174 |
*rating = PEP_rating_undefined;
|
vb@190
|
2175 |
else
|
vb@1004
|
2176 |
*rating = _MAX(_rating(max_comm_type, PEP_rating_undefined),
|
vb@486
|
2177 |
PEP_rating_unencrypted);
|
vb@190
|
2178 |
|
vb@190
|
2179 |
return PEP_STATUS_OK;
|
vb@190
|
2180 |
}
|
vb@190
|
2181 |
|
vb@1004
|
2182 |
DYNAMIC_API PEP_STATUS identity_rating(
|
vb@239
|
2183 |
PEP_SESSION session,
|
vb@239
|
2184 |
pEp_identity *ident,
|
vb@1004
|
2185 |
PEP_rating *rating
|
vb@239
|
2186 |
)
|
vb@239
|
2187 |
{
|
vb@239
|
2188 |
PEP_STATUS status = PEP_STATUS_OK;
|
vb@239
|
2189 |
|
vb@239
|
2190 |
assert(session);
|
vb@239
|
2191 |
assert(ident);
|
vb@1004
|
2192 |
assert(rating);
|
vb@239
|
2193 |
|
vb@1004
|
2194 |
if (!(session && ident && rating))
|
vb@239
|
2195 |
return PEP_ILLEGAL_VALUE;
|
vb@239
|
2196 |
|
vb@239
|
2197 |
if (ident->me)
|
edouard@1406
|
2198 |
status = _myself(session, ident, false, true);
|
vb@239
|
2199 |
else
|
vb@239
|
2200 |
status = update_identity(session, ident);
|
vb@239
|
2201 |
|
vb@239
|
2202 |
if (status == PEP_STATUS_OK)
|
vb@1004
|
2203 |
*rating = _rating(ident->comm_type, PEP_rating_undefined);
|
vb@239
|
2204 |
|
vb@239
|
2205 |
return status;
|
vb@239
|
2206 |
}
|
vb@239
|
2207 |
|
vb@507
|
2208 |
DYNAMIC_API PEP_STATUS get_binary_path(PEP_cryptotech tech, const char **path)
|
vb@507
|
2209 |
{
|
vb@507
|
2210 |
PEP_STATUS status = PEP_STATUS_OK;
|
vb@507
|
2211 |
|
vb@507
|
2212 |
assert(path);
|
vb@507
|
2213 |
if (path == NULL)
|
vb@507
|
2214 |
return PEP_ILLEGAL_VALUE;
|
vb@507
|
2215 |
|
vb@507
|
2216 |
if (cryptotech[tech].binary_path == NULL)
|
vb@507
|
2217 |
*path = NULL;
|
vb@507
|
2218 |
else
|
vb@507
|
2219 |
status = cryptotech[tech].binary_path(path);
|
vb@507
|
2220 |
|
vb@507
|
2221 |
return status;
|
vb@507
|
2222 |
}
|
vb@507
|
2223 |
|
vb@1004
|
2224 |
|
vb@1004
|
2225 |
DYNAMIC_API PEP_color color_from_rating(PEP_rating rating)
|
vb@1004
|
2226 |
{
|
krista@1243
|
2227 |
if (rating == PEP_rating_b0rken || rating == PEP_rating_have_no_key)
|
vb@1004
|
2228 |
return PEP_color_no_color;
|
vb@1004
|
2229 |
|
vb@1004
|
2230 |
if (rating < PEP_rating_undefined)
|
vb@1004
|
2231 |
return PEP_color_red;
|
vb@1004
|
2232 |
|
vb@1004
|
2233 |
if (rating < PEP_rating_reliable)
|
vb@1004
|
2234 |
return PEP_color_no_color;
|
vb@1004
|
2235 |
|
vb@1004
|
2236 |
if (rating < PEP_rating_trusted)
|
vb@1004
|
2237 |
return PEP_color_yellow;
|
vb@1004
|
2238 |
|
vb@1004
|
2239 |
if (rating >= PEP_rating_trusted)
|
vb@1004
|
2240 |
return PEP_color_green;
|
vb@1004
|
2241 |
|
vb@1004
|
2242 |
// this should never happen
|
vb@1004
|
2243 |
assert(false);
|
vb@1475
|
2244 |
return PEP_color_no_color;
|
vb@1004
|
2245 |
}
|
vb@1004
|
2246 |
|
krista@1315
|
2247 |
static bool _is_valid_hex(const char* hexstr) {
|
krista@1315
|
2248 |
if (!hexstr)
|
krista@1315
|
2249 |
return false;
|
krista@1427
|
2250 |
|
krista@1315
|
2251 |
const char* curr = hexstr;
|
krista@1315
|
2252 |
char currchar;
|
krista@1427
|
2253 |
|
krista@1315
|
2254 |
for (currchar = *curr; currchar != '\0'; currchar = *(++curr)) {
|
krista@1315
|
2255 |
if ((currchar >= '0' && currchar <= '9') ||
|
krista@1315
|
2256 |
(currchar >= 'a' && currchar <= 'f') ||
|
krista@1427
|
2257 |
(currchar >= 'A' && currchar <= 'F'))
|
krista@1315
|
2258 |
{
|
krista@1315
|
2259 |
continue;
|
krista@1315
|
2260 |
}
|
krista@1315
|
2261 |
return false;
|
krista@1315
|
2262 |
}
|
krista@1427
|
2263 |
return true;
|
krista@1315
|
2264 |
}
|
krista@1315
|
2265 |
|
krista@1312
|
2266 |
// Returns, in comparison: 1 if fpr1 > fpr2, 0 if equal, -1 if fpr1 < fpr2
|
krista@1312
|
2267 |
static PEP_STATUS _compare_fprs(const char* fpr1, const char* fpr2, int* comparison) {
|
krista@1427
|
2268 |
|
krista@1312
|
2269 |
const int _FULL_FINGERPRINT_LENGTH = 40;
|
krista@1312
|
2270 |
const int _ASCII_LOWERCASE_OFFSET = 32;
|
krista@1312
|
2271 |
|
krista@1312
|
2272 |
size_t fpr1_len = strlen(fpr1);
|
krista@1312
|
2273 |
size_t fpr2_len = strlen(fpr2);
|
krista@1427
|
2274 |
|
krista@1312
|
2275 |
if (fpr1_len != _FULL_FINGERPRINT_LENGTH || fpr2_len != _FULL_FINGERPRINT_LENGTH)
|
krista@1312
|
2276 |
return PEP_TRUSTWORDS_FPR_WRONG_LENGTH;
|
krista@1427
|
2277 |
|
krista@1315
|
2278 |
if (!_is_valid_hex(fpr1) || !_is_valid_hex(fpr2))
|
krista@1315
|
2279 |
return PEP_ILLEGAL_VALUE;
|
krista@1427
|
2280 |
|
krista@1312
|
2281 |
const char* fpr1_curr = fpr1;
|
krista@1312
|
2282 |
const char* fpr2_curr = fpr2;
|
krista@1427
|
2283 |
|
krista@1312
|
2284 |
char current;
|
krista@1312
|
2285 |
|
krista@1315
|
2286 |
// Advance past leading zeros.
|
krista@1313
|
2287 |
for (current = *fpr1_curr; current != '0' && current != '\0'; current = *(++fpr1_curr), fpr1_len--);
|
krista@1313
|
2288 |
for (current = *fpr2_curr; current != '0' && current != '\0'; current = *(++fpr2_curr), fpr2_len--);
|
krista@1427
|
2289 |
|
krista@1312
|
2290 |
if (fpr1_len == fpr2_len) {
|
krista@1312
|
2291 |
char digit1;
|
krista@1312
|
2292 |
char digit2;
|
krista@1312
|
2293 |
|
krista@1315
|
2294 |
while (fpr1_curr && *fpr1_curr != '\0') {
|
krista@1312
|
2295 |
digit1 = *fpr1_curr++;
|
krista@1312
|
2296 |
digit2 = *fpr2_curr++;
|
krista@1312
|
2297 |
|
krista@1312
|
2298 |
// Adjust for case-insensitive compare
|
krista@1312
|
2299 |
if (digit1 >= 'a' && digit1 <= 'f')
|
krista@1312
|
2300 |
digit1 -= _ASCII_LOWERCASE_OFFSET;
|
krista@1312
|
2301 |
if (digit2 >= 'a' && digit2 <= 'f')
|
krista@1312
|
2302 |
digit2 -= _ASCII_LOWERCASE_OFFSET;
|
krista@1427
|
2303 |
|
krista@1312
|
2304 |
// We take advantage of the fact that 'a'-'f' are larger
|
krista@1312
|
2305 |
// integer values in the ASCII table than '0'-'9'.
|
krista@1312
|
2306 |
// This allows us to compare digits directly.
|
krista@1312
|
2307 |
if (digit1 > digit2) {
|
krista@1312
|
2308 |
*comparison = 1;
|
krista@1312
|
2309 |
return PEP_STATUS_OK;
|
krista@1312
|
2310 |
} else if (digit1 < digit2) {
|
krista@1312
|
2311 |
*comparison = -1;
|
krista@1312
|
2312 |
return PEP_STATUS_OK;
|
krista@1312
|
2313 |
}
|
krista@1427
|
2314 |
|
krista@1312
|
2315 |
// pointers already advanced above. Keep going.
|
krista@1312
|
2316 |
}
|
krista@1312
|
2317 |
*comparison = 0;
|
krista@1312
|
2318 |
return PEP_STATUS_OK;
|
krista@1312
|
2319 |
}
|
krista@1312
|
2320 |
else if (fpr1_len > fpr2_len) {
|
krista@1312
|
2321 |
*comparison = 1;
|
krista@1312
|
2322 |
return PEP_STATUS_OK;
|
krista@1312
|
2323 |
}
|
krista@1312
|
2324 |
// Otherwise, fpr1_len < fpr2_len
|
krista@1312
|
2325 |
*comparison = -1;
|
krista@1312
|
2326 |
return PEP_STATUS_OK;
|
krista@1312
|
2327 |
}
|
krista@1312
|
2328 |
|
krista@1307
|
2329 |
DYNAMIC_API PEP_STATUS get_trustwords(
|
roker@1509
|
2330 |
PEP_SESSION session, const pEp_identity* id1, const pEp_identity* id2,
|
krista@1307
|
2331 |
const char* lang, char **words, size_t *wsize, bool full
|
krista@1307
|
2332 |
)
|
krista@1307
|
2333 |
{
|
krista@1307
|
2334 |
assert(session);
|
krista@1307
|
2335 |
assert(id1);
|
krista@1307
|
2336 |
assert(id2);
|
krista@1307
|
2337 |
assert(id1->fpr);
|
krista@1307
|
2338 |
assert(id2->fpr);
|
krista@1307
|
2339 |
assert(words);
|
krista@1307
|
2340 |
assert(wsize);
|
krista@1427
|
2341 |
|
krista@1307
|
2342 |
if (!(session && id1 && id2 && words && wsize) ||
|
krista@1307
|
2343 |
!(id1->fpr) || (!id2->fpr))
|
krista@1307
|
2344 |
return PEP_ILLEGAL_VALUE;
|
krista@1427
|
2345 |
|
krista@1307
|
2346 |
const char *source1 = id1->fpr;
|
krista@1307
|
2347 |
const char *source2 = id2->fpr;
|
krista@1427
|
2348 |
|
krista@1307
|
2349 |
*words = NULL;
|
krista@1307
|
2350 |
*wsize = 0;
|
krista@1307
|
2351 |
|
krista@1307
|
2352 |
const size_t SHORT_NUM_TWORDS = 5;
|
krista@1427
|
2353 |
|
krista@1307
|
2354 |
// N.B. THIS will have to be changed once we start checking trustword entropy.
|
krista@1307
|
2355 |
// For now, full is ALL, and otherwise it's 5-per-id.
|
krista@1307
|
2356 |
size_t max_words_per_id = (full ? 0 : SHORT_NUM_TWORDS);
|
krista@1427
|
2357 |
|
krista@1307
|
2358 |
char* first_set = NULL;
|
krista@1307
|
2359 |
char* second_set = NULL;
|
krista@1307
|
2360 |
size_t first_wsize = 0;
|
krista@1307
|
2361 |
size_t second_wsize = 0;
|
krista@1427
|
2362 |
|
krista@1312
|
2363 |
int fpr_comparison = -255;
|
krista@1312
|
2364 |
PEP_STATUS status = _compare_fprs(source1, source2, &fpr_comparison);
|
krista@1312
|
2365 |
if (status != PEP_STATUS_OK)
|
krista@1312
|
2366 |
return status;
|
krista@1312
|
2367 |
|
krista@1307
|
2368 |
char* _retstr = NULL;
|
krista@1312
|
2369 |
|
krista@1312
|
2370 |
switch (fpr_comparison) {
|
krista@1312
|
2371 |
case 1: // source1 > source2
|
krista@1312
|
2372 |
status = trustwords(session, source2, lang, &first_set, &first_wsize, max_words_per_id);
|
krista@1312
|
2373 |
if (status != PEP_STATUS_OK)
|
krista@1312
|
2374 |
goto error_release;
|
krista@1427
|
2375 |
status = trustwords(session, source1, lang, &second_set, &second_wsize, max_words_per_id);
|
krista@1312
|
2376 |
if (status != PEP_STATUS_OK)
|
krista@1312
|
2377 |
goto error_release;
|
krista@1312
|
2378 |
break;
|
krista@1427
|
2379 |
case 0:
|
krista@1312
|
2380 |
case -1: // source1 <= source2
|
krista@1312
|
2381 |
status = trustwords(session, source1, lang, &first_set, &first_wsize, max_words_per_id);
|
krista@1312
|
2382 |
if (status != PEP_STATUS_OK)
|
krista@1312
|
2383 |
goto error_release;
|
krista@1427
|
2384 |
status = trustwords(session, source2, lang, &second_set, &second_wsize, max_words_per_id);
|
krista@1312
|
2385 |
if (status != PEP_STATUS_OK)
|
krista@1312
|
2386 |
goto error_release;
|
krista@1315
|
2387 |
break;
|
krista@1312
|
2388 |
default:
|
krista@1312
|
2389 |
return PEP_UNKNOWN_ERROR; // shouldn't be possible
|
krista@1312
|
2390 |
}
|
krista@1427
|
2391 |
|
krista@1307
|
2392 |
size_t _wsize = first_wsize + second_wsize;
|
krista@1427
|
2393 |
|
krista@1315
|
2394 |
bool needs_space = (first_set[first_wsize - 1] != ' ');
|
krista@1427
|
2395 |
|
krista@1315
|
2396 |
if (needs_space)
|
krista@1315
|
2397 |
_wsize++;
|
krista@1427
|
2398 |
|
krista@1307
|
2399 |
_retstr = calloc(1, _wsize + 1);
|
krista@1427
|
2400 |
|
krista@1307
|
2401 |
size_t len = strlcpy(_retstr, first_set, _wsize);
|
krista@1307
|
2402 |
if (len >= _wsize) {
|
krista@1307
|
2403 |
status = PEP_UNKNOWN_ERROR;
|
krista@1307
|
2404 |
goto error_release;
|
krista@1307
|
2405 |
}
|
krista@1315
|
2406 |
if (needs_space) {
|
krista@1315
|
2407 |
strlcat(_retstr, " ", _wsize);
|
krista@1315
|
2408 |
if (len >= _wsize) {
|
krista@1315
|
2409 |
status = PEP_UNKNOWN_ERROR;
|
krista@1315
|
2410 |
goto error_release;
|
krista@1315
|
2411 |
}
|
krista@1315
|
2412 |
}
|
krista@1307
|
2413 |
strlcat(_retstr, second_set, _wsize);
|
krista@1307
|
2414 |
if (len >= _wsize){
|
krista@1307
|
2415 |
status = PEP_UNKNOWN_ERROR;
|
krista@1307
|
2416 |
goto error_release;
|
krista@1307
|
2417 |
}
|
krista@1427
|
2418 |
|
krista@1307
|
2419 |
*words = _retstr;
|
krista@1307
|
2420 |
*wsize = _wsize;
|
krista@1307
|
2421 |
status = PEP_STATUS_OK;
|
krista@1427
|
2422 |
|
krista@1307
|
2423 |
goto the_end;
|
krista@1427
|
2424 |
|
krista@1307
|
2425 |
error_release:
|
krista@1307
|
2426 |
free(_retstr);
|
krista@1427
|
2427 |
|
krista@1307
|
2428 |
the_end:
|
krista@1307
|
2429 |
free(first_set);
|
krista@1307
|
2430 |
free(second_set);
|
krista@1307
|
2431 |
return status;
|
vb@1309
|
2432 |
}
|
vb@1309
|
2433 |
|
edouard@1553
|
2434 |
DYNAMIC_API PEP_STATUS get_message_trustwords(
|
edouard@1553
|
2435 |
PEP_SESSION session,
|
edouard@1553
|
2436 |
message *msg,
|
edouard@1553
|
2437 |
stringlist_t *keylist,
|
edouard@1553
|
2438 |
pEp_identity* received_by,
|
edouard@1553
|
2439 |
const char* lang, char **words, bool full
|
edouard@1553
|
2440 |
)
|
edouard@1553
|
2441 |
{
|
edouard@1553
|
2442 |
assert(session);
|
edouard@1553
|
2443 |
assert(msg);
|
edouard@1553
|
2444 |
assert(received_by);
|
edouard@1553
|
2445 |
assert(received_by->address);
|
edouard@1553
|
2446 |
assert(lang);
|
edouard@1553
|
2447 |
assert(words);
|
edouard@1553
|
2448 |
|
edouard@1553
|
2449 |
if (!(session &&
|
edouard@1553
|
2450 |
msg &&
|
edouard@1553
|
2451 |
received_by &&
|
edouard@1553
|
2452 |
received_by->address &&
|
edouard@1553
|
2453 |
lang &&
|
edouard@1553
|
2454 |
words))
|
edouard@1553
|
2455 |
return PEP_ILLEGAL_VALUE;
|
edouard@1553
|
2456 |
|
edouard@1557
|
2457 |
pEp_identity* partner = NULL;
|
edouard@1553
|
2458 |
|
edouard@1553
|
2459 |
PEP_STATUS status = PEP_STATUS_OK;
|
edouard@1553
|
2460 |
|
edouard@1553
|
2461 |
*words = NULL;
|
edouard@1553
|
2462 |
|
edouard@1553
|
2463 |
// We want fingerprint of key that did sign the message
|
edouard@1553
|
2464 |
|
edouard@1553
|
2465 |
if (keylist == NULL) {
|
edouard@1553
|
2466 |
|
edouard@1553
|
2467 |
// Message is to be decrypted
|
roker@1554
|
2468 |
message *dst = NULL;
|
edouard@1553
|
2469 |
stringlist_t *_keylist = keylist;
|
edouard@1553
|
2470 |
PEP_rating rating;
|
edouard@1553
|
2471 |
PEP_decrypt_flags_t flags;
|
edouard@1553
|
2472 |
status = decrypt_message( session, msg, &dst, &_keylist, &rating, &flags);
|
edouard@1553
|
2473 |
|
edouard@1553
|
2474 |
if (status != PEP_STATUS_OK) {
|
edouard@1553
|
2475 |
free_message(dst);
|
edouard@1553
|
2476 |
free_stringlist(_keylist);
|
edouard@1553
|
2477 |
return status;
|
edouard@1553
|
2478 |
}
|
edouard@1553
|
2479 |
|
edouard@1553
|
2480 |
if (dst && dst->from && _keylist) {
|
edouard@1553
|
2481 |
partner = identity_dup(dst->from);
|
edouard@1553
|
2482 |
if(partner){
|
edouard@1553
|
2483 |
free(partner->fpr);
|
edouard@1553
|
2484 |
partner->fpr = strdup(_keylist->value);
|
edouard@1553
|
2485 |
if (partner->fpr == NULL)
|
edouard@1553
|
2486 |
status = PEP_OUT_OF_MEMORY;
|
edouard@1553
|
2487 |
} else {
|
edouard@1553
|
2488 |
status = PEP_OUT_OF_MEMORY;
|
edouard@1553
|
2489 |
}
|
edouard@1553
|
2490 |
} else {
|
edouard@1553
|
2491 |
status = PEP_UNKNOWN_ERROR;
|
edouard@1553
|
2492 |
}
|
edouard@1553
|
2493 |
|
edouard@1553
|
2494 |
free_message(dst);
|
edouard@1553
|
2495 |
free_stringlist(_keylist);
|
edouard@1553
|
2496 |
|
edouard@1553
|
2497 |
} else {
|
edouard@1553
|
2498 |
|
edouard@1553
|
2499 |
// Message already decrypted
|
edouard@1553
|
2500 |
if (keylist->value) {
|
edouard@1553
|
2501 |
partner = identity_dup(msg->from);
|
edouard@1553
|
2502 |
if(partner){
|
edouard@1553
|
2503 |
free(partner->fpr);
|
edouard@1553
|
2504 |
partner->fpr = strdup(keylist->value);
|
edouard@1553
|
2505 |
if (partner->fpr == NULL)
|
edouard@1553
|
2506 |
status = PEP_OUT_OF_MEMORY;
|
edouard@1553
|
2507 |
} else {
|
edouard@1553
|
2508 |
status = PEP_OUT_OF_MEMORY;
|
edouard@1553
|
2509 |
}
|
edouard@1553
|
2510 |
} else {
|
edouard@1553
|
2511 |
status = PEP_ILLEGAL_VALUE;
|
edouard@1553
|
2512 |
}
|
edouard@1553
|
2513 |
}
|
edouard@1553
|
2514 |
|
edouard@1553
|
2515 |
if (status != PEP_STATUS_OK) {
|
edouard@1553
|
2516 |
free_identity(partner);
|
edouard@1553
|
2517 |
return status;
|
edouard@1553
|
2518 |
}
|
edouard@1553
|
2519 |
|
edouard@1553
|
2520 |
// Find own identity corresponding to given account address.
|
edouard@1553
|
2521 |
// In that case we want default key attached to own identity
|
edouard@1553
|
2522 |
pEp_identity *stored_identity = NULL;
|
edouard@1553
|
2523 |
status = get_identity(session,
|
edouard@1553
|
2524 |
received_by->address,
|
edouard@1553
|
2525 |
PEP_OWN_USERID,
|
edouard@1553
|
2526 |
&stored_identity);
|
edouard@1553
|
2527 |
|
edouard@1553
|
2528 |
if (status != PEP_STATUS_OK) {
|
edouard@1553
|
2529 |
free_identity(stored_identity);
|
edouard@1553
|
2530 |
return status;
|
edouard@1553
|
2531 |
}
|
edouard@1553
|
2532 |
|
edouard@1553
|
2533 |
// get the trustwords
|
edouard@1553
|
2534 |
size_t wsize;
|
edouard@1553
|
2535 |
status = get_trustwords(session,
|
edouard@1553
|
2536 |
partner, received_by,
|
edouard@1553
|
2537 |
lang, words, &wsize, full);
|
edouard@1553
|
2538 |
|
edouard@1553
|
2539 |
return status;
|
edouard@1553
|
2540 |
}
|
krista@1325
|
2541 |
|
krista@1325
|
2542 |
DYNAMIC_API PEP_STATUS MIME_decrypt_message(
|
krista@1325
|
2543 |
PEP_SESSION session,
|
krista@1325
|
2544 |
const char *mimetext,
|
krista@1325
|
2545 |
size_t size,
|
krista@1325
|
2546 |
char** mime_plaintext,
|
krista@1325
|
2547 |
stringlist_t **keylist,
|
krista@1325
|
2548 |
PEP_rating *rating,
|
krista@1325
|
2549 |
PEP_decrypt_flags_t *flags
|
krista@1427
|
2550 |
)
|
krista@1325
|
2551 |
{
|
roker@1741
|
2552 |
assert(mimetext);
|
roker@1741
|
2553 |
assert(mime_plaintext);
|
roker@1741
|
2554 |
assert(keylist);
|
roker@1741
|
2555 |
assert(rating);
|
roker@1741
|
2556 |
assert(flags);
|
roker@1741
|
2557 |
|
krista@1325
|
2558 |
PEP_STATUS status = PEP_STATUS_OK;
|
krista@1325
|
2559 |
message* tmp_msg = NULL;
|
krista@1325
|
2560 |
message* dec_msg = NULL;
|
krista@1427
|
2561 |
|
krista@1325
|
2562 |
status = mime_decode_message(mimetext, size, &tmp_msg);
|
krista@1325
|
2563 |
if (status != PEP_STATUS_OK)
|
krista@1325
|
2564 |
goto pep_error;
|
krista@1427
|
2565 |
|
krista@1644
|
2566 |
PEP_STATUS decrypt_status = decrypt_message(session,
|
krista@1644
|
2567 |
tmp_msg,
|
krista@1644
|
2568 |
&dec_msg,
|
krista@1644
|
2569 |
keylist,
|
krista@1644
|
2570 |
rating,
|
krista@1644
|
2571 |
flags);
|
krista@1715
|
2572 |
if (decrypt_status > PEP_CANNOT_DECRYPT_UNKNOWN)
|
roker@1708
|
2573 |
{
|
roker@1708
|
2574 |
status = decrypt_status;
|
roker@1708
|
2575 |
goto pep_error;
|
roker@1708
|
2576 |
}
|
roker@1708
|
2577 |
|
roker@1741
|
2578 |
assert(dec_msg);
|
roker@1741
|
2579 |
|
krista@1325
|
2580 |
status = mime_encode_message(dec_msg, false, mime_plaintext);
|
krista@1427
|
2581 |
|
krista@1644
|
2582 |
if (status == PEP_STATUS_OK)
|
roker@1708
|
2583 |
{
|
roker@1708
|
2584 |
free(tmp_msg);
|
krista@1644
|
2585 |
return decrypt_status;
|
roker@1708
|
2586 |
}
|
roker@1708
|
2587 |
|
krista@1325
|
2588 |
pep_error:
|
krista@1325
|
2589 |
free_message(tmp_msg);
|
krista@1325
|
2590 |
free_message(dec_msg);
|
krista@1427
|
2591 |
|
krista@1325
|
2592 |
return status;
|
krista@1325
|
2593 |
}
|
krista@1325
|
2594 |
|
krista@1641
|
2595 |
|
krista@1325
|
2596 |
DYNAMIC_API PEP_STATUS MIME_encrypt_message(
|
|