| 1 |
/* wptGPGUtil.cpp - GPG util functions |
| 2 |
* Copyright (C) 2005, 2006 Timo Schulz |
| 3 |
* Copyright (C) 2005 g10 Code GmbH |
| 4 |
* |
| 5 |
* This file is part of WinPT. |
| 6 |
* |
| 7 |
* WinPT is free software; you can redistribute it and/or modify |
| 8 |
* it under the terms of the GNU General Public License as published by |
| 9 |
* the Free Software Foundation; either version 2 of the License, or |
| 10 |
* (at your option) any later version. |
| 11 |
* |
| 12 |
* WinPT is distributed in the hope that it will be useful, |
| 13 |
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 |
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 15 |
* GNU General Public License for more details. |
| 16 |
*/ |
| 17 |
#ifdef HAVE_CONFIG_H |
| 18 |
#include <config.h> |
| 19 |
#endif |
| 20 |
|
| 21 |
#include <windows.h> |
| 22 |
#include <sys/stat.h> |
| 23 |
#include <string.h> |
| 24 |
#include <errno.h> |
| 25 |
|
| 26 |
#include "gpgme.h" |
| 27 |
#include "wptTypes.h" |
| 28 |
#include "wptErrors.h" |
| 29 |
#include "wptW32API.h" |
| 30 |
#include "wptGPG.h" |
| 31 |
#include "wptRegistry.h" |
| 32 |
#include "StringBuffer.h" |
| 33 |
#include "openpgp.h" |
| 34 |
|
| 35 |
|
| 36 |
static char* |
| 37 |
char_alloc (size_t n) |
| 38 |
{ |
| 39 |
char *p; |
| 40 |
|
| 41 |
p = new char[n]; |
| 42 |
if (!p) |
| 43 |
BUG (0); |
| 44 |
memset (p, 0, n); |
| 45 |
return p; |
| 46 |
} |
| 47 |
|
| 48 |
|
| 49 |
#define NROFHEXDIGITS 2 |
| 50 |
/* Convert two hexadecimal digits from STR to the value they |
| 51 |
represent. Returns -1 if one of the characters is not a |
| 52 |
hexadecimal digit. */ |
| 53 |
static int |
| 54 |
hextobyte (const unsigned char *str) |
| 55 |
{ |
| 56 |
int val = 0; |
| 57 |
int i; |
| 58 |
|
| 59 |
for (i = 0; i < NROFHEXDIGITS; i++) { |
| 60 |
if (*str >= '0' && *str <= '9') |
| 61 |
val += *str - '0'; |
| 62 |
else if (*str >= 'A' && *str <= 'F') |
| 63 |
val += 10 + *str - 'A'; |
| 64 |
else if (*str >= 'a' && *str <= 'f') |
| 65 |
val += 10 + *str - 'a'; |
| 66 |
else |
| 67 |
return -1; |
| 68 |
if (i < NROFHEXDIGITS - 1) |
| 69 |
val *= 16; |
| 70 |
str++; |
| 71 |
} |
| 72 |
return val; |
| 73 |
} |
| 74 |
|
| 75 |
/* Decode the C formatted string @src and store the result in the |
| 76 |
buffer @destp which is @len bytes long. If @len is zero, then a |
| 77 |
large enough buffer is allocated with malloc and @destp is set to |
| 78 |
the result. Currently, @len is only used to specify if allocation |
| 79 |
is desired or not, the caller is expected to make sure that @destp |
| 80 |
is large enough if @len is not zero. */ |
| 81 |
gpgme_error_t |
| 82 |
gpg_decode_c_string (const char *src, char **destp, size_t len) |
| 83 |
{ |
| 84 |
char *dest; |
| 85 |
|
| 86 |
/* Set up the destination buffer. */ |
| 87 |
if (len) { |
| 88 |
if (len < strlen (src) + 1) |
| 89 |
return gpg_error (GPG_ERR_TOO_SHORT); |
| 90 |
dest = *destp; |
| 91 |
} |
| 92 |
else { |
| 93 |
/* The converted string will never be larger than the original string. */ |
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dest = char_alloc (strlen (src) + 1); |
| 95 |
*destp = dest; |
| 96 |
} |
| 97 |
|
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/* Convert the string. */ |
| 99 |
while (*src) { |
| 100 |
if (*src != '\\') { |
| 101 |
*(dest++) = *(src++); |
| 102 |
continue; |
| 103 |
} |
| 104 |
|
| 105 |
switch (src[1]) { |
| 106 |
#define DECODE_ONE(match,result) \ |
| 107 |
case match: \ |
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src += 2; \ |
| 109 |
*(dest++) = result; \ |
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break; |
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|
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DECODE_ONE ('\'', '\''); |
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DECODE_ONE ('\"', '\"'); |
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DECODE_ONE ('\?', '\?'); |
| 115 |
DECODE_ONE ('\\', '\\'); |
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DECODE_ONE ('a', '\a'); |
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DECODE_ONE ('b', '\b'); |
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DECODE_ONE ('f', '\f'); |
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DECODE_ONE ('n', '\n'); |
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DECODE_ONE ('r', '\r'); |
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DECODE_ONE ('t', '\t'); |
| 122 |
DECODE_ONE ('v', '\v'); |
| 123 |
|
| 124 |
case 'x': { |
| 125 |
int val = hextobyte ((unsigned char*)&src[2]); |
| 126 |
if (val == -1) { /* Should not happen. */ |
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*(dest++) = *(src++); |
| 128 |
*(dest++) = *(src++); |
| 129 |
if (*src) |
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*(dest++) = *(src++); |
| 131 |
if (*src) |
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*(dest++) = *(src++); |
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} |
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else { |
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if (!val) { |
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/* A binary zero is not representable in a C string. */ |
| 137 |
*(dest++) = '\\'; |
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*(dest++) = '0'; |
| 139 |
} |
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else |
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*((unsigned char *) dest++) = val; |
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src += 4; |
| 143 |
} |
| 144 |
} |
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|
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default: /* Should not happen. */ |
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{ |
| 148 |
*(dest++) = *(src++); |
| 149 |
*(dest++) = *(src++); |
| 150 |
} |
| 151 |
} |
| 152 |
} |
| 153 |
*(dest++) = 0; |
| 154 |
return 0; |
| 155 |
} |
| 156 |
|
| 157 |
|
| 158 |
static char* |
| 159 |
read_gpg_program (void) |
| 160 |
{ |
| 161 |
return get_reg_entry (HKEY_CURRENT_USER, |
| 162 |
"Software\\GNU\\GnuPG", "gpgProgram"); |
| 163 |
} |
| 164 |
|
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|
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/* Create a temp file based on the name of @name. |
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Return value: handle to the file in case of success. */ |
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static HANDLE |
| 169 |
create_tmpfile (const char *name) |
| 170 |
{ |
| 171 |
HANDLE out; |
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SECURITY_ATTRIBUTES sec_attr; |
| 173 |
char tmp[MAX_PATH+64]; |
| 174 |
|
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memset (&sec_attr, 0, sizeof (sec_attr)); |
| 176 |
sec_attr.bInheritHandle = TRUE; |
| 177 |
sec_attr.lpSecurityDescriptor = NULL; |
| 178 |
sec_attr.nLength = sizeof (sec_attr); |
| 179 |
|
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get_temp_name (tmp, DIM (tmp)-1, name); |
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out = CreateFile (tmp, GENERIC_READ|GENERIC_WRITE, |
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FILE_SHARE_WRITE, &sec_attr, |
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OPEN_ALWAYS, FILE_FLAG_DELETE_ON_CLOSE, NULL); |
| 184 |
if (out == INVALID_HANDLE_VALUE) |
| 185 |
log_debug ("create_tmpfile: CreateFile failed ec=%d\r\n", |
| 186 |
(int)GetLastError ()); |
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return out; |
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} |
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|
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|
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/* Create a pipe with a readable remote end and |
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write the data from @dat to the local end. |
| 193 |
Return value: read handle on success. */ |
| 194 |
static HANDLE |
| 195 |
create_in_pipe (const char *dat) |
| 196 |
{ |
| 197 |
HANDLE r, w; |
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SECURITY_ATTRIBUTES sec_attr; |
| 199 |
DWORD n; |
| 200 |
|
| 201 |
memset (&sec_attr, 0, sizeof sec_attr); |
| 202 |
sec_attr.bInheritHandle = TRUE; |
| 203 |
sec_attr.nLength = sizeof sec_attr; |
| 204 |
|
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if (!CreatePipe (&r, &w, &sec_attr, 4096)) { |
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log_debug ("create_in_pipe: CreatePipeFailed ec=%d\r\n", |
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(int)GetLastError ()); |
| 208 |
return NULL; |
| 209 |
} |
| 210 |
|
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WriteFile (w, dat, strlen (dat), &n, NULL); |
| 212 |
CloseHandle (w); |
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|
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return r; |
| 215 |
} |
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|
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|
| 218 |
/* Map the contents of the file handle @out to |
| 219 |
a buffer and return it. */ |
| 220 |
static char* |
| 221 |
map_tmpfile (HANDLE out, DWORD *nread) |
| 222 |
{ |
| 223 |
DWORD n; |
| 224 |
char *p; |
| 225 |
|
| 226 |
FlushFileBuffers (out); |
| 227 |
SetFilePointer (out, 0, NULL, FILE_BEGIN); |
| 228 |
n = GetFileSize (out, NULL); |
| 229 |
p = char_alloc (n+1); |
| 230 |
ReadFile (out, p, n, &n, NULL); |
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p[n] = 0; |
| 232 |
if (nread) |
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*nread = n; |
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return p; |
| 235 |
} |
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|
| 237 |
|
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/* Create a process from the command line in @cmd. |
| 239 |
If @out is != NULL, the output of the process will |
| 240 |
be redirected to @out. If @in is != NULL the input |
| 241 |
will be read from @in. |
| 242 |
Return value: 0 on success. */ |
| 243 |
static int |
| 244 |
create_process (const char *cmd, HANDLE in, HANDLE out, HANDLE err) |
| 245 |
{ |
| 246 |
STARTUPINFO si; |
| 247 |
PROCESS_INFORMATION pi; |
| 248 |
|
| 249 |
memset (&si, 0, sizeof (si)); |
| 250 |
si.cb = sizeof si; |
| 251 |
if (in || out || err) |
| 252 |
si.dwFlags = STARTF_USESTDHANDLES; |
| 253 |
if (out) |
| 254 |
si.hStdOutput = out; |
| 255 |
if (in) |
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si.hStdInput = in; |
| 257 |
if (err) |
| 258 |
si.hStdError = err; |
| 259 |
si.dwFlags |= STARTF_USESHOWWINDOW; |
| 260 |
si.wShowWindow = SW_HIDE; |
| 261 |
if (!CreateProcess (NULL, (char*)cmd, NULL, NULL, TRUE, 0, |
| 262 |
NULL, NULL, &si, &pi)) { |
| 263 |
log_debug ("create_process: CreateProcess failed ec=%d\r\n", |
| 264 |
(int)GetLastError ()); |
| 265 |
return -1; |
| 266 |
} |
| 267 |
WaitForSingleObject (pi.hProcess, INFINITE); |
| 268 |
CloseHandle (pi.hProcess); |
| 269 |
CloseHandle (pi.hThread); |
| 270 |
return 0; |
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} |
| 272 |
|
| 273 |
|
| 274 |
|
| 275 |
/* We execute gpg and check the process return code. |
| 276 |
A return code != 0 indicates a problem (error). */ |
| 277 |
int |
| 278 |
gpg_check_return_code (const char *args) |
| 279 |
{ |
| 280 |
STARTUPINFO si; |
| 281 |
PROCESS_INFORMATION pi; |
| 282 |
StringBuffer cmd; |
| 283 |
char *p; |
| 284 |
DWORD ec; |
| 285 |
|
| 286 |
memset (&si, 0, sizeof (si)); |
| 287 |
si.cb = sizeof (si); |
| 288 |
si.dwFlags = STARTF_USESHOWWINDOW; |
| 289 |
si.wShowWindow = SW_HIDE; |
| 290 |
|
| 291 |
p = read_gpg_program (); |
| 292 |
if (!p) |
| 293 |
return 1; /* general error */ |
| 294 |
cmd = p; |
| 295 |
cmd = cmd + " " + args; |
| 296 |
free_if_alloc (p); |
| 297 |
|
| 298 |
if (!CreateProcess (NULL, (char*)cmd.getBuffer (), NULL, NULL, |
| 299 |
FALSE, 0, NULL, NULL, &si, &pi)) |
| 300 |
return 1; /* general error */ |
| 301 |
|
| 302 |
WaitForSingleObject (pi.hProcess, INFINITE); |
| 303 |
GetExitCodeProcess (pi.hProcess, &ec); |
| 304 |
|
| 305 |
CloseHandle (pi.hProcess); |
| 306 |
CloseHandle (pi.hThread); |
| 307 |
return (int)ec; |
| 308 |
} |
| 309 |
|
| 310 |
|
| 311 |
/* Export a GPG secret key given by @keyid into the file @outfile. |
| 312 |
Return value: 0 on success. */ |
| 313 |
gpgme_error_t |
| 314 |
gpg_export_seckey (const char *keyid, const char *outfile) |
| 315 |
{ |
| 316 |
gpgme_error_t err = gpg_error (GPG_ERR_NO_ERROR); |
| 317 |
struct stat st; |
| 318 |
char *p; |
| 319 |
StringBuffer cmd; |
| 320 |
|
| 321 |
p = read_gpg_program (); |
| 322 |
if (!p) |
| 323 |
return gpg_error (GPG_ERR_INV_ARG); |
| 324 |
cmd = p; |
| 325 |
cmd = cmd + " --armor --yes --output \"" + outfile + "\""; |
| 326 |
cmd = cmd + " --export-secret-key " + keyid; |
| 327 |
|
| 328 |
if (create_process (cmd.getBuffer (), NULL, NULL, NULL)) |
| 329 |
err = gpg_error (GPG_ERR_MODULE_NOT_FOUND); |
| 330 |
|
| 331 |
if (stat (outfile, &st) == -1 || st.st_size == 0) |
| 332 |
err = gpg_error (GPG_ERR_NO_DATA); |
| 333 |
|
| 334 |
free_if_alloc (p); |
| 335 |
return err; |
| 336 |
} |
| 337 |
|
| 338 |
|
| 339 |
/* If @export is 1, export the ownertrust data to the |
| 340 |
buffer @data. Otherwise import the ownertrust data from @data. |
| 341 |
Return value: 0 on success. */ |
| 342 |
gpgme_error_t |
| 343 |
gpg_manage_ownertrust (char **data, int do_export) |
| 344 |
{ |
| 345 |
gpgme_error_t err = gpg_error (GPG_ERR_NO_ERROR); |
| 346 |
HANDLE out = NULL, in = NULL; |
| 347 |
StringBuffer cmd; |
| 348 |
char *p; |
| 349 |
|
| 350 |
p = read_gpg_program (); |
| 351 |
if (!p) |
| 352 |
return gpg_error (GPG_ERR_INV_ARG); |
| 353 |
|
| 354 |
cmd = p; |
| 355 |
cmd = cmd + (do_export? " --export-ownertrust" : " --import-ownertrust"); |
| 356 |
|
| 357 |
if (do_export) |
| 358 |
out = create_tmpfile ("tmp_gpg_ot_out"); |
| 359 |
else { |
| 360 |
DWORD nw; |
| 361 |
|
| 362 |
in = create_tmpfile ("tmp_gpg_ot_in"); |
| 363 |
WriteFile (in, *data, strlen (*data), &nw, NULL); |
| 364 |
FlushFileBuffers (in); |
| 365 |
} |
| 366 |
if (create_process (cmd.getBuffer (), in, out, NULL)) |
| 367 |
err = gpg_error (GPG_ERR_MODULE_NOT_FOUND); |
| 368 |
|
| 369 |
free_if_alloc (p); |
| 370 |
|
| 371 |
if (in) |
| 372 |
CloseHandle (in); |
| 373 |
if (out) { |
| 374 |
*data = map_tmpfile (out, NULL); |
| 375 |
CloseHandle (out); |
| 376 |
} |
| 377 |
|
| 378 |
return err; |
| 379 |
} |
| 380 |
|
| 381 |
|
| 382 |
/* Call gpg --rebuild-keydb-caches to speed up signature listings. */ |
| 383 |
gpgme_error_t |
| 384 |
gpg_rebuild_cache (char **r_inf) |
| 385 |
{ |
| 386 |
gpgme_error_t err = gpg_error (GPG_ERR_NO_ERROR); |
| 387 |
HANDLE out = NULL; |
| 388 |
StringBuffer cmd; |
| 389 |
char *p; |
| 390 |
|
| 391 |
p = read_gpg_program (); |
| 392 |
if (!p) |
| 393 |
return gpg_error (GPG_ERR_INV_ARG); |
| 394 |
cmd = p; |
| 395 |
cmd = cmd + " --logger-fd=1 --batch --rebuild-keydb-caches"; |
| 396 |
|
| 397 |
if (r_inf) |
| 398 |
out = create_tmpfile ("tmp_gpg_rebuild_cache"); |
| 399 |
|
| 400 |
if (create_process (cmd.getBuffer (), NULL, out, NULL)) |
| 401 |
err = gpg_error (GPG_ERR_MODULE_NOT_FOUND); |
| 402 |
|
| 403 |
if (r_inf) |
| 404 |
*r_inf = map_tmpfile (out, NULL); |
| 405 |
if (out) |
| 406 |
CloseHandle (out); |
| 407 |
free_if_alloc (p); |
| 408 |
return err; |
| 409 |
} |
| 410 |
|
| 411 |
|
| 412 |
/* Call gpg --version to retrieve the 'about' information. */ |
| 413 |
gpgme_error_t |
| 414 |
gpg_get_version (char **r_inf) |
| 415 |
{ |
| 416 |
gpgme_error_t err = gpg_error (GPG_ERR_NO_ERROR); |
| 417 |
HANDLE out; |
| 418 |
StringBuffer cmd; |
| 419 |
char *p; |
| 420 |
|
| 421 |
p = read_gpg_program (); |
| 422 |
if (!p) |
| 423 |
return gpg_error (GPG_ERR_INV_ARG); |
| 424 |
cmd = p; |
| 425 |
cmd = cmd + " --version"; |
| 426 |
|
| 427 |
out = create_tmpfile ("tmp_gpg_out"); |
| 428 |
if (create_process (cmd.getBuffer (), NULL, out, NULL)) |
| 429 |
err = gpg_error (GPG_ERR_MODULE_NOT_FOUND); |
| 430 |
|
| 431 |
free_if_alloc (p); |
| 432 |
|
| 433 |
*r_inf = map_tmpfile (out, NULL); |
| 434 |
CloseHandle (out); |
| 435 |
return err; |
| 436 |
} |
| 437 |
|
| 438 |
|
| 439 |
/* Return the colon file output of the given file @fname in @r_out. |
| 440 |
Return value: 0 on success. */ |
| 441 |
gpgme_error_t |
| 442 |
gpg_import_key_list (const char *fname, char **r_out) |
| 443 |
{ |
| 444 |
gpgme_error_t err = gpg_error (GPG_ERR_NO_ERROR); |
| 445 |
HANDLE out; |
| 446 |
StringBuffer cmd; |
| 447 |
char *p; |
| 448 |
|
| 449 |
p = read_gpg_program (); |
| 450 |
if (!p) |
| 451 |
return gpg_error (GPG_ERR_INV_ARG); |
| 452 |
|
| 453 |
cmd = p; |
| 454 |
cmd = cmd + " --fixed-list-mode --with-colons "; |
| 455 |
cmd = cmd + "\"" + fname + "\""; |
| 456 |
|
| 457 |
out = create_tmpfile ("tmp_gpg_keys"); |
| 458 |
if (create_process (cmd.getBuffer (), NULL, out, NULL)) |
| 459 |
err = gpg_error (GPG_ERR_MODULE_NOT_FOUND); |
| 460 |
|
| 461 |
free_if_alloc (p); |
| 462 |
|
| 463 |
*r_out = map_tmpfile (out, NULL); |
| 464 |
CloseHandle (out); |
| 465 |
return err; |
| 466 |
} |
| 467 |
|
| 468 |
|
| 469 |
/* Generate a revocation certificate for the key with the keyid @keyid. |
| 470 |
@inp_data contains all needed data to answer the questions of the |
| 471 |
command handler. Each separate with a '\n'. |
| 472 |
@r_revcert contains the revocation cert on success. |
| 473 |
if @desig_revoke is 1, the designated revoker mode is used. |
| 474 |
Return value: 0 on success. */ |
| 475 |
gpgme_error_t |
| 476 |
gpg_revoke_cert (int desig_revoke, const char *inp_data, |
| 477 |
const char *keyid, char **r_revcert) |
| 478 |
{ |
| 479 |
gpgme_error_t err = gpg_error (GPG_ERR_NO_ERROR); |
| 480 |
HANDLE in, out; |
| 481 |
StringBuffer cmd; |
| 482 |
char *rcrt; |
| 483 |
char *p; |
| 484 |
|
| 485 |
p = read_gpg_program (); |
| 486 |
if (!p) |
| 487 |
return gpg_error (GPG_ERR_INV_ARG); |
| 488 |
|
| 489 |
cmd = p; |
| 490 |
cmd = cmd + " --pgp7 --command-fd=0 --status-fd=2 "; |
| 491 |
cmd = cmd + (desig_revoke? "--desig-revoke" : "--gen-revoke"); |
| 492 |
cmd = cmd + " " + keyid; |
| 493 |
|
| 494 |
in = create_in_pipe (inp_data); |
| 495 |
out = create_tmpfile ("tmp_gpg_revcert"); |
| 496 |
if (create_process (cmd.getBuffer (), in, out, NULL)) { |
| 497 |
*r_revcert = NULL; |
| 498 |
err = gpg_error (GPG_ERR_MODULE_NOT_FOUND); |
| 499 |
} |
| 500 |
else { |
| 501 |
rcrt = map_tmpfile (out, NULL); |
| 502 |
*r_revcert = rcrt; |
| 503 |
if (rcrt && strlen (rcrt) == 0) |
| 504 |
err = gpg_error (GPG_ERR_BAD_PASSPHRASE); |
| 505 |
} |
| 506 |
|
| 507 |
free_if_alloc (p); |
| 508 |
|
| 509 |
CloseHandle (in); |
| 510 |
CloseHandle (out); |
| 511 |
return err; |
| 512 |
} |
| 513 |
|
| 514 |
|
| 515 |
/* Return the raw photo-id data combined with the status-fd |
| 516 |
entry in @r_data. If @keyid is set, only the data for this |
| 517 |
key will be returned. |
| 518 |
Return value: 0 on success. */ |
| 519 |
gpgme_error_t |
| 520 |
gpg_get_photoid_data (const char *keyid, char **r_status_data, |
| 521 |
unsigned char **r_data, unsigned long *ndata) |
| 522 |
{ |
| 523 |
gpgme_error_t err = gpg_error (GPG_ERR_NO_ERROR); |
| 524 |
HANDLE herr, hdat; |
| 525 |
StringBuffer cmd; |
| 526 |
char *p; |
| 527 |
|
| 528 |
if (ndata) |
| 529 |
*ndata = 0; |
| 530 |
p = read_gpg_program (); |
| 531 |
if (!p) |
| 532 |
return gpg_error (GPG_ERR_INV_ARG); |
| 533 |
hdat = create_tmpfile ("tmp_gpg_uat_data"); |
| 534 |
herr = create_tmpfile ("tmp_gpg_uat_status"); |
| 535 |
|
| 536 |
/* XXX: add --list-options show-unsuable-uid to display |
| 537 |
revoked attribute IDs */ |
| 538 |
cmd = p; |
| 539 |
cmd = cmd + " --attribute-fd=" + ((int)hdat); |
| 540 |
cmd = cmd + " --status-fd=2 --list-keys "; |
| 541 |
if (keyid != NULL) |
| 542 |
cmd = cmd + keyid; |
| 543 |
|
| 544 |
if (create_process (cmd.getBuffer (), NULL, NULL, herr)) |
| 545 |
err = gpg_error (GPG_ERR_MODULE_NOT_FOUND); |
| 546 |
|
| 547 |
free_if_alloc (p); |
| 548 |
|
| 549 |
*r_data = (BYTE*)map_tmpfile (hdat, ndata); |
| 550 |
*r_status_data = map_tmpfile (herr, NULL); |
| 551 |
CloseHandle (hdat); |
| 552 |
CloseHandle (herr); |
| 553 |
|
| 554 |
return err; |
| 555 |
} |
| 556 |
|
| 557 |
|
| 558 |
/* Extract one or more keys from the key file @keyfile. |
| 559 |
The keys to extract are give in @keys and the size of it is @nkeys. |
| 560 |
@new_keyfile is a file with the extract keys. |
| 561 |
Return value: 0 on success. */ |
| 562 |
gpgme_error_t |
| 563 |
gpg_extract_keys (const char *keyfile, const char **keys, DWORD nkeys, |
| 564 |
char **new_keyfile) |
| 565 |
{ |
| 566 |
gpgme_error_t err = gpg_error (GPG_ERR_NO_ERROR); |
| 567 |
StringBuffer cmd; |
| 568 |
char *p; |
| 569 |
char tmpnam[MAX_PATH], tmpdir[MAX_PATH]; |
| 570 |
int i; |
| 571 |
|
| 572 |
/* copy key file to temp dir. */ |
| 573 |
GetTempPath (MAX_PATH-1, tmpdir); |
| 574 |
get_temp_name (tmpnam, MAX_PATH-1, NULL); |
| 575 |
CopyFile (keyfile, tmpnam, FALSE); |
| 576 |
|
| 577 |
/* create temp file for output. */ |
| 578 |
*new_keyfile = new char[MAX_PATH]; |
| 579 |
if (!*new_keyfile) |
| 580 |
BUG (NULL); |
| 581 |
get_temp_name (*new_keyfile, MAX_PATH-1, "tmp_sel_keys"); |
| 582 |
|
| 583 |
p = read_gpg_program (); |
| 584 |
if (!p) |
| 585 |
return gpg_error (GPG_ERR_INV_ARG); |
| 586 |
|
| 587 |
/* Use the temp key file as a keyring and export the selected |
| 588 |
keys from it. */ |
| 589 |
cmd = p; |
| 590 |
cmd = cmd + " --yes --output " + "\"" + *new_keyfile + "\""; |
| 591 |
cmd = cmd + " --no-options --homedir " + tmpdir + " --keyring " + tmpnam + " --export "; |
| 592 |
for (i=0; i < (int)nkeys; i++) |
| 593 |
cmd = cmd + keys[i] + " "; |
| 594 |
|
| 595 |
if (create_process (cmd.getBuffer (), NULL, NULL, NULL)) |
| 596 |
err = gpgme_error (GPG_ERR_MODULE_NOT_FOUND); |
| 597 |
|
| 598 |
DeleteFile (tmpnam); |
| 599 |
free_if_alloc (p); |
| 600 |
return err; |
| 601 |
} |
| 602 |
|
| 603 |
|
| 604 |
/* Return the validity of the user attribute, informerly known |
| 605 |
as photo-ID. If no uat was found, return 0 for unknown. */ |
| 606 |
gpgme_error_t |
| 607 |
get_uat_validity (const char *keyid, gpgme_validity_t *r_valid) |
| 608 |
{ |
| 609 |
gpgme_error_t err = gpg_error (GPG_ERR_NO_ERROR); |
| 610 |
HANDLE out; |
| 611 |
StringBuffer cmd; |
| 612 |
char *p; |
| 613 |
char *uat; |
| 614 |
|
| 615 |
*r_valid = GPGME_VALIDITY_UNKNOWN; |
| 616 |
p = read_gpg_program (); |
| 617 |
if (!p) |
| 618 |
return gpg_error (GPG_ERR_INV_ARG); |
| 619 |
cmd = p; |
| 620 |
cmd = cmd + " --with-colons --fixed-list-mode"; |
| 621 |
cmd = cmd + " --list-keys " + "\"" + keyid + "\""; |
| 622 |
|
| 623 |
out = create_tmpfile ("tmp_gpg_keys"); |
| 624 |
if (create_process (cmd.getBuffer (), NULL, out, NULL)) |
| 625 |
err = gpg_error (GPG_ERR_MODULE_NOT_FOUND); |
| 626 |
|
| 627 |
free_if_alloc (p); |
| 628 |
|
| 629 |
p = map_tmpfile (out, NULL); |
| 630 |
if ((uat = strstr (p, "uat:"))) { |
| 631 |
switch (*(uat+4)) { |
| 632 |
case 'm': *r_valid = GPGME_VALIDITY_MARGINAL; break; |
| 633 |
case 'f': |
| 634 |
case 'u': *r_valid = GPGME_VALIDITY_FULL; break; |
| 635 |
default : *r_valid = GPGME_VALIDITY_UNDEFINED; break; |
| 636 |
} |
| 637 |
} |
| 638 |
|
| 639 |
free_if_alloc (p); |
| 640 |
CloseHandle (out); |
| 641 |
return err; |
| 642 |
} |
| 643 |
|
| 644 |
|
| 645 |
static gpgme_error_t |
| 646 |
clip_store_data (char *tmp_outname, DWORD outlen) |
| 647 |
{ |
| 648 |
gpgme_data_t in; |
| 649 |
gpgme_error_t err; |
| 650 |
|
| 651 |
get_temp_name (tmp_outname, outlen-1, NULL); |
| 652 |
err = gpg_data_new_from_clipboard (&in, 0); |
| 653 |
if (err) |
| 654 |
return err; |
| 655 |
err = gpg_data_release_and_set_file (in, tmp_outname); |
| 656 |
return err; |
| 657 |
} |
| 658 |
|
| 659 |
|
| 660 |
/* Extract all recipients from the file @file. |
| 661 |
Return value: 0 on success. */ |
| 662 |
static gpgme_error_t |
| 663 |
file_extract_recipient (const char *file, gpgme_recipient_t *r_list) |
| 664 |
{ |
| 665 |
PACKET *pkt; |
| 666 |
PKT_pubkey_enc *enc; |
| 667 |
gpg_iobuf_t inp = NULL; |
| 668 |
armor_filter_context_t afx; |
| 669 |
gpgme_recipient_t l; |
| 670 |
int rc = 0, quit=0; |
| 671 |
|
| 672 |
if (!file || !r_list) { |
| 673 |
log_debug ("do_list_packets: !r_list || !file"); |
| 674 |
return gpgme_error (GPG_ERR_INV_ARG); |
| 675 |
} |
| 676 |
|
| 677 |
*r_list = NULL; |
| 678 |
inp = gpg_iobuf_open (file); |
| 679 |
if (!inp) |
| 680 |
return gpgme_err_code_from_errno (errno); |
| 681 |
gpg_iobuf_ioctl (inp, 3, 1, NULL); /* disable cache */ |
| 682 |
if (gpg_use_armor_filter (inp)) { |
| 683 |
memset (&afx, 0, sizeof (afx)); |
| 684 |
gpg_iobuf_push_filter (inp, gpg_armor_filter, &afx); |
| 685 |
} |
| 686 |
pkt = (PACKET *)calloc(1, sizeof *pkt); |
| 687 |
gpg_init_packet (pkt); |
| 688 |
while (!quit && (rc = gpg_parse_packet (inp, pkt)) != -1) { |
| 689 |
switch (pkt->pkttype) { |
| 690 |
case PKT_PUBKEY_ENC: |
| 691 |
enc = pkt->pkt.pubkey_enc; |
| 692 |
if (!enc) |
| 693 |
break; |
| 694 |
l = (gpgme_recipient_t)calloc (1, sizeof *l); |
| 695 |
l->keyid = char_alloc (16+1); |
| 696 |
_snprintf (l->keyid, 16, "%08lX%08lX", |
| 697 |
enc->keyid[0], enc->keyid[1]); |
| 698 |
l->pubkey_algo = (gpgme_pubkey_algo_t)enc->pubkey_algo; |
| 699 |
l->status = 0; |
| 700 |
l->next = (*r_list); |
| 701 |
*r_list = l; |
| 702 |
break; |
| 703 |
|
| 704 |
case PKT_ENCRYPTED: |
| 705 |
case PKT_ENCRYPTED_MDC: |
| 706 |
case PKT_PLAINTEXT: |
| 707 |
case PKT_COMPRESSED: |
| 708 |
case PKT_PUBLIC_KEY: |
| 709 |
case PKT_SECRET_KEY: |
| 710 |
quit = 1; |
| 711 |
break; |
| 712 |
|
| 713 |
default: |
| 714 |
break; |
| 715 |
} |
| 716 |
gpg_free_packet (pkt); |
| 717 |
gpg_init_packet (pkt); |
| 718 |
} |
| 719 |
gpg_iobuf_close (inp); |
| 720 |
safe_free (pkt); |
| 721 |
return 0; |
| 722 |
} |
| 723 |
|
| 724 |
|
| 725 |
/* Either extract the list of recipients from the file @file or |
| 726 |
if the string is NULL, try to extract them from the clipboard. |
| 727 |
Return value: 0 on success. */ |
| 728 |
gpgme_error_t |
| 729 |
gpg_get_recipients (const char *file, gpgme_recipient_t *r_list) |
| 730 |
{ |
| 731 |
gpgme_error_t err; |
| 732 |
char tmp[MAX_PATH+1]; |
| 733 |
|
| 734 |
if (!file) { |
| 735 |
clip_store_data (tmp, DIM (tmp)-2); |
| 736 |
err = file_extract_recipient (tmp, r_list); |
| 737 |
DeleteFile (tmp); |
| 738 |
} |
| 739 |
else |
| 740 |
err = file_extract_recipient (file, r_list); |
| 741 |
return err; |
| 742 |
} |
| 743 |
|
| 744 |
|
| 745 |
/* Try to find a subpacket with the given id @subpktid |
| 746 |
inside the key @key. |
| 747 |
Return value: 0 on success. */ |
| 748 |
gpgme_error_t |
| 749 |
gpg_find_key_subpacket (const char *key, int subpktid, char **value) |
| 750 |
{ |
| 751 |
gpgme_error_t err = gpg_error (GPG_ERR_NO_ERROR); |
| 752 |
StringBuffer cmd; |
| 753 |
HANDLE out; |
| 754 |
const char *spk; |
| 755 |
char *p; |
| 756 |
|
| 757 |
*value = NULL; |
| 758 |
p = read_gpg_program (); |
| 759 |
cmd = p; |
| 760 |
cmd = cmd + " --with-colons --no-options --list-options "; |
| 761 |
cmd = cmd + "show-sig-subpackets=" + subpktid + " --list-sigs " + key; |
| 762 |
|
| 763 |
out = create_tmpfile ("tmp_gpg_subpackets"); |
| 764 |
if (create_process (cmd.getBuffer (), NULL, out, NULL)) |
| 765 |
err = gpg_error (GPG_ERR_MODULE_NOT_FOUND); |
| 766 |
|
| 767 |
free_if_alloc (p); |
| 768 |
|
| 769 |
p = map_tmpfile (out, NULL); |
| 770 |
if (p && (spk=strstr (p, "spk"))) { |
| 771 |
char *end = strstr (spk, "\n"); |
| 772 |
|
| 773 |
if (end) { |
| 774 |
*value = char_alloc ((end-spk)+1); |
| 775 |
memcpy (*value, spk, (end-spk)-1); |
| 776 |
} |
| 777 |
} |
| 778 |
|
| 779 |
free_if_alloc (p); |
| 780 |
CloseHandle (out); |
| 781 |
return err; |
| 782 |
} |
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