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Ben Rudiak-Gould points out that we should be using WM_APP as the base for
[sgt/putty] / windows / winpgen.c
1 /*
2 * PuTTY key generation front end (Windows).
3 */
4
5 #include <time.h>
6 #include <stdio.h>
7 #include <stdlib.h>
8
9 #define PUTTY_DO_GLOBALS
10
11 #include "putty.h"
12 #include "ssh.h"
13
14 #include <commctrl.h>
15
16 #ifdef MSVC4
17 #define ICON_BIG 1
18 #endif
19
20 #define WM_DONEKEY (WM_APP + 1)
21
22 #define DEFAULT_KEYSIZE 1024
23
24 static char *cmdline_keyfile = NULL;
25
26 /*
27 * Print a modal (Really Bad) message box and perform a fatal exit.
28 */
29 void modalfatalbox(char *fmt, ...)
30 {
31 va_list ap;
32 char *stuff;
33
34 va_start(ap, fmt);
35 stuff = dupvprintf(fmt, ap);
36 va_end(ap);
37 MessageBox(NULL, stuff, "PuTTYgen Fatal Error",
38 MB_SYSTEMMODAL | MB_ICONERROR | MB_OK);
39 sfree(stuff);
40 exit(1);
41 }
42
43 /* ----------------------------------------------------------------------
44 * Progress report code. This is really horrible :-)
45 */
46 #define PROGRESSRANGE 65535
47 #define MAXPHASE 5
48 struct progress {
49 int nphases;
50 struct {
51 int exponential;
52 unsigned startpoint, total;
53 unsigned param, current, n; /* if exponential */
54 unsigned mult; /* if linear */
55 } phases[MAXPHASE];
56 unsigned total, divisor, range;
57 HWND progbar;
58 };
59
60 static void progress_update(void *param, int action, int phase, int iprogress)
61 {
62 struct progress *p = (struct progress *) param;
63 unsigned progress = iprogress;
64 int position;
65
66 if (action < PROGFN_READY && p->nphases < phase)
67 p->nphases = phase;
68 switch (action) {
69 case PROGFN_INITIALISE:
70 p->nphases = 0;
71 break;
72 case PROGFN_LIN_PHASE:
73 p->phases[phase-1].exponential = 0;
74 p->phases[phase-1].mult = p->phases[phase].total / progress;
75 break;
76 case PROGFN_EXP_PHASE:
77 p->phases[phase-1].exponential = 1;
78 p->phases[phase-1].param = 0x10000 + progress;
79 p->phases[phase-1].current = p->phases[phase-1].total;
80 p->phases[phase-1].n = 0;
81 break;
82 case PROGFN_PHASE_EXTENT:
83 p->phases[phase-1].total = progress;
84 break;
85 case PROGFN_READY:
86 {
87 unsigned total = 0;
88 int i;
89 for (i = 0; i < p->nphases; i++) {
90 p->phases[i].startpoint = total;
91 total += p->phases[i].total;
92 }
93 p->total = total;
94 p->divisor = ((p->total + PROGRESSRANGE - 1) / PROGRESSRANGE);
95 p->range = p->total / p->divisor;
96 SendMessage(p->progbar, PBM_SETRANGE, 0, MAKELPARAM(0, p->range));
97 }
98 break;
99 case PROGFN_PROGRESS:
100 if (p->phases[phase-1].exponential) {
101 while (p->phases[phase-1].n < progress) {
102 p->phases[phase-1].n++;
103 p->phases[phase-1].current *= p->phases[phase-1].param;
104 p->phases[phase-1].current /= 0x10000;
105 }
106 position = (p->phases[phase-1].startpoint +
107 p->phases[phase-1].total - p->phases[phase-1].current);
108 } else {
109 position = (p->phases[phase-1].startpoint +
110 progress * p->phases[phase-1].mult);
111 }
112 SendMessage(p->progbar, PBM_SETPOS, position / p->divisor, 0);
113 break;
114 }
115 }
116
117 extern char ver[];
118
119 #define PASSPHRASE_MAXLEN 512
120
121 struct PassphraseProcStruct {
122 char *passphrase;
123 char *comment;
124 };
125
126 /*
127 * Dialog-box function for the passphrase box.
128 */
129 static int CALLBACK PassphraseProc(HWND hwnd, UINT msg,
130 WPARAM wParam, LPARAM lParam)
131 {
132 static char *passphrase = NULL;
133 struct PassphraseProcStruct *p;
134
135 switch (msg) {
136 case WM_INITDIALOG:
137 SetForegroundWindow(hwnd);
138 SetWindowPos(hwnd, HWND_TOP, 0, 0, 0, 0,
139 SWP_NOMOVE | SWP_NOSIZE | SWP_SHOWWINDOW);
140
141 /*
142 * Centre the window.
143 */
144 { /* centre the window */
145 RECT rs, rd;
146 HWND hw;
147
148 hw = GetDesktopWindow();
149 if (GetWindowRect(hw, &rs) && GetWindowRect(hwnd, &rd))
150 MoveWindow(hwnd,
151 (rs.right + rs.left + rd.left - rd.right) / 2,
152 (rs.bottom + rs.top + rd.top - rd.bottom) / 2,
153 rd.right - rd.left, rd.bottom - rd.top, TRUE);
154 }
155
156 p = (struct PassphraseProcStruct *) lParam;
157 passphrase = p->passphrase;
158 if (p->comment)
159 SetDlgItemText(hwnd, 101, p->comment);
160 *passphrase = 0;
161 SetDlgItemText(hwnd, 102, passphrase);
162 return 0;
163 case WM_COMMAND:
164 switch (LOWORD(wParam)) {
165 case IDOK:
166 if (*passphrase)
167 EndDialog(hwnd, 1);
168 else
169 MessageBeep(0);
170 return 0;
171 case IDCANCEL:
172 EndDialog(hwnd, 0);
173 return 0;
174 case 102: /* edit box */
175 if ((HIWORD(wParam) == EN_CHANGE) && passphrase) {
176 GetDlgItemText(hwnd, 102, passphrase,
177 PASSPHRASE_MAXLEN - 1);
178 passphrase[PASSPHRASE_MAXLEN - 1] = '\0';
179 }
180 return 0;
181 }
182 return 0;
183 case WM_CLOSE:
184 EndDialog(hwnd, 0);
185 return 0;
186 }
187 return 0;
188 }
189
190 /*
191 * Prompt for a key file. Assumes the filename buffer is of size
192 * FILENAME_MAX.
193 */
194 static int prompt_keyfile(HWND hwnd, char *dlgtitle,
195 char *filename, int save, int ppk)
196 {
197 OPENFILENAME of;
198 memset(&of, 0, sizeof(of));
199 of.hwndOwner = hwnd;
200 if (ppk) {
201 of.lpstrFilter = "PuTTY Private Key Files (*.ppk)\0*.ppk\0"
202 "All Files (*.*)\0*\0\0\0";
203 of.lpstrDefExt = ".ppk";
204 } else {
205 of.lpstrFilter = "All Files (*.*)\0*\0\0\0";
206 }
207 of.lpstrCustomFilter = NULL;
208 of.nFilterIndex = 1;
209 of.lpstrFile = filename;
210 *filename = '\0';
211 of.nMaxFile = FILENAME_MAX;
212 of.lpstrFileTitle = NULL;
213 of.lpstrTitle = dlgtitle;
214 of.Flags = 0;
215 return request_file(NULL, &of, FALSE, save);
216 }
217
218 /*
219 * Dialog-box function for the Licence box.
220 */
221 static int CALLBACK LicenceProc(HWND hwnd, UINT msg,
222 WPARAM wParam, LPARAM lParam)
223 {
224 switch (msg) {
225 case WM_INITDIALOG:
226 /*
227 * Centre the window.
228 */
229 { /* centre the window */
230 RECT rs, rd;
231 HWND hw;
232
233 hw = GetDesktopWindow();
234 if (GetWindowRect(hw, &rs) && GetWindowRect(hwnd, &rd))
235 MoveWindow(hwnd,
236 (rs.right + rs.left + rd.left - rd.right) / 2,
237 (rs.bottom + rs.top + rd.top - rd.bottom) / 2,
238 rd.right - rd.left, rd.bottom - rd.top, TRUE);
239 }
240
241 return 1;
242 case WM_COMMAND:
243 switch (LOWORD(wParam)) {
244 case IDOK:
245 case IDCANCEL:
246 EndDialog(hwnd, 1);
247 return 0;
248 }
249 return 0;
250 case WM_CLOSE:
251 EndDialog(hwnd, 1);
252 return 0;
253 }
254 return 0;
255 }
256
257 /*
258 * Dialog-box function for the About box.
259 */
260 static int CALLBACK AboutProc(HWND hwnd, UINT msg,
261 WPARAM wParam, LPARAM lParam)
262 {
263 switch (msg) {
264 case WM_INITDIALOG:
265 /*
266 * Centre the window.
267 */
268 { /* centre the window */
269 RECT rs, rd;
270 HWND hw;
271
272 hw = GetDesktopWindow();
273 if (GetWindowRect(hw, &rs) && GetWindowRect(hwnd, &rd))
274 MoveWindow(hwnd,
275 (rs.right + rs.left + rd.left - rd.right) / 2,
276 (rs.bottom + rs.top + rd.top - rd.bottom) / 2,
277 rd.right - rd.left, rd.bottom - rd.top, TRUE);
278 }
279
280 SetDlgItemText(hwnd, 100, ver);
281 return 1;
282 case WM_COMMAND:
283 switch (LOWORD(wParam)) {
284 case IDOK:
285 case IDCANCEL:
286 EndDialog(hwnd, 1);
287 return 0;
288 case 101:
289 EnableWindow(hwnd, 0);
290 DialogBox(hinst, MAKEINTRESOURCE(214), hwnd, LicenceProc);
291 EnableWindow(hwnd, 1);
292 SetActiveWindow(hwnd);
293 return 0;
294 }
295 return 0;
296 case WM_CLOSE:
297 EndDialog(hwnd, 1);
298 return 0;
299 }
300 return 0;
301 }
302
303 /*
304 * Thread to generate a key.
305 */
306 struct rsa_key_thread_params {
307 HWND progressbar; /* notify this with progress */
308 HWND dialog; /* notify this on completion */
309 int keysize; /* bits in key */
310 int is_dsa;
311 struct RSAKey *key;
312 struct dss_key *dsskey;
313 };
314 static DWORD WINAPI generate_rsa_key_thread(void *param)
315 {
316 struct rsa_key_thread_params *params =
317 (struct rsa_key_thread_params *) param;
318 struct progress prog;
319 prog.progbar = params->progressbar;
320
321 progress_update(&prog, PROGFN_INITIALISE, 0, 0);
322
323 if (params->is_dsa)
324 dsa_generate(params->dsskey, params->keysize, progress_update, &prog);
325 else
326 rsa_generate(params->key, params->keysize, progress_update, &prog);
327
328 PostMessage(params->dialog, WM_DONEKEY, 0, 0);
329
330 sfree(params);
331 return 0;
332 }
333
334 struct MainDlgState {
335 int collecting_entropy;
336 int generation_thread_exists;
337 int key_exists;
338 int entropy_got, entropy_required, entropy_size;
339 int keysize;
340 int ssh2, is_dsa;
341 char **commentptr; /* points to key.comment or ssh2key.comment */
342 struct ssh2_userkey ssh2key;
343 unsigned *entropy;
344 struct RSAKey key;
345 struct dss_key dsskey;
346 HMENU filemenu, keymenu, cvtmenu;
347 };
348
349 static void hidemany(HWND hwnd, const int *ids, int hideit)
350 {
351 while (*ids) {
352 ShowWindow(GetDlgItem(hwnd, *ids++), (hideit ? SW_HIDE : SW_SHOW));
353 }
354 }
355
356 static void setupbigedit1(HWND hwnd, int id, int idstatic, struct RSAKey *key)
357 {
358 char *buffer;
359 char *dec1, *dec2;
360
361 dec1 = bignum_decimal(key->exponent);
362 dec2 = bignum_decimal(key->modulus);
363 buffer = dupprintf("%d %s %s %s", bignum_bitcount(key->modulus),
364 dec1, dec2, key->comment);
365 SetDlgItemText(hwnd, id, buffer);
366 SetDlgItemText(hwnd, idstatic,
367 "&Public key for pasting into authorized_keys file:");
368 sfree(dec1);
369 sfree(dec2);
370 sfree(buffer);
371 }
372
373 static void setupbigedit2(HWND hwnd, int id, int idstatic,
374 struct ssh2_userkey *key)
375 {
376 unsigned char *pub_blob;
377 char *buffer, *p;
378 int pub_len;
379 int i;
380
381 pub_blob = key->alg->public_blob(key->data, &pub_len);
382 buffer = snewn(strlen(key->alg->name) + 4 * ((pub_len + 2) / 3) +
383 strlen(key->comment) + 3, char);
384 strcpy(buffer, key->alg->name);
385 p = buffer + strlen(buffer);
386 *p++ = ' ';
387 i = 0;
388 while (i < pub_len) {
389 int n = (pub_len - i < 3 ? pub_len - i : 3);
390 base64_encode_atom(pub_blob + i, n, p);
391 i += n;
392 p += 4;
393 }
394 *p++ = ' ';
395 strcpy(p, key->comment);
396 SetDlgItemText(hwnd, id, buffer);
397 SetDlgItemText(hwnd, idstatic, "&Public key for pasting into "
398 "OpenSSH authorized_keys file:");
399 sfree(pub_blob);
400 sfree(buffer);
401 }
402
403 static int save_ssh1_pubkey(char *filename, struct RSAKey *key)
404 {
405 char *dec1, *dec2;
406 FILE *fp;
407
408 dec1 = bignum_decimal(key->exponent);
409 dec2 = bignum_decimal(key->modulus);
410 fp = fopen(filename, "wb");
411 if (!fp)
412 return 0;
413 fprintf(fp, "%d %s %s %s\n",
414 bignum_bitcount(key->modulus), dec1, dec2, key->comment);
415 fclose(fp);
416 sfree(dec1);
417 sfree(dec2);
418 return 1;
419 }
420
421 /*
422 * Warn about the obsolescent key file format.
423 */
424 void old_keyfile_warning(void)
425 {
426 static const char mbtitle[] = "PuTTY Key File Warning";
427 static const char message[] =
428 "You are loading an SSH-2 private key which has an\n"
429 "old version of the file format. This means your key\n"
430 "file is not fully tamperproof. Future versions of\n"
431 "PuTTY may stop supporting this private key format,\n"
432 "so we recommend you convert your key to the new\n"
433 "format.\n"
434 "\n"
435 "Once the key is loaded into PuTTYgen, you can perform\n"
436 "this conversion simply by saving it again.";
437
438 MessageBox(NULL, message, mbtitle, MB_OK);
439 }
440
441 static int save_ssh2_pubkey(char *filename, struct ssh2_userkey *key)
442 {
443 unsigned char *pub_blob;
444 char *p;
445 int pub_len;
446 int i, column;
447 FILE *fp;
448
449 pub_blob = key->alg->public_blob(key->data, &pub_len);
450
451 fp = fopen(filename, "wb");
452 if (!fp)
453 return 0;
454
455 fprintf(fp, "---- BEGIN SSH2 PUBLIC KEY ----\n");
456
457 fprintf(fp, "Comment: \"");
458 for (p = key->comment; *p; p++) {
459 if (*p == '\\' || *p == '\"')
460 fputc('\\', fp);
461 fputc(*p, fp);
462 }
463 fprintf(fp, "\"\n");
464
465 i = 0;
466 column = 0;
467 while (i < pub_len) {
468 char buf[5];
469 int n = (pub_len - i < 3 ? pub_len - i : 3);
470 base64_encode_atom(pub_blob + i, n, buf);
471 i += n;
472 buf[4] = '\0';
473 fputs(buf, fp);
474 if (++column >= 16) {
475 fputc('\n', fp);
476 column = 0;
477 }
478 }
479 if (column > 0)
480 fputc('\n', fp);
481
482 fprintf(fp, "---- END SSH2 PUBLIC KEY ----\n");
483 fclose(fp);
484 sfree(pub_blob);
485 return 1;
486 }
487
488 enum {
489 controlidstart = 100,
490 IDC_QUIT,
491 IDC_TITLE,
492 IDC_BOX_KEY,
493 IDC_NOKEY,
494 IDC_GENERATING,
495 IDC_PROGRESS,
496 IDC_PKSTATIC, IDC_KEYDISPLAY,
497 IDC_FPSTATIC, IDC_FINGERPRINT,
498 IDC_COMMENTSTATIC, IDC_COMMENTEDIT,
499 IDC_PASSPHRASE1STATIC, IDC_PASSPHRASE1EDIT,
500 IDC_PASSPHRASE2STATIC, IDC_PASSPHRASE2EDIT,
501 IDC_BOX_ACTIONS,
502 IDC_GENSTATIC, IDC_GENERATE,
503 IDC_LOADSTATIC, IDC_LOAD,
504 IDC_SAVESTATIC, IDC_SAVE, IDC_SAVEPUB,
505 IDC_BOX_PARAMS,
506 IDC_TYPESTATIC, IDC_KEYSSH1, IDC_KEYSSH2RSA, IDC_KEYSSH2DSA,
507 IDC_BITSSTATIC, IDC_BITS,
508 IDC_ABOUT,
509 IDC_GIVEHELP,
510 IDC_IMPORT, IDC_EXPORT_OPENSSH, IDC_EXPORT_SSHCOM
511 };
512
513 static const int nokey_ids[] = { IDC_NOKEY, 0 };
514 static const int generating_ids[] = { IDC_GENERATING, IDC_PROGRESS, 0 };
515 static const int gotkey_ids[] = {
516 IDC_PKSTATIC, IDC_KEYDISPLAY,
517 IDC_FPSTATIC, IDC_FINGERPRINT,
518 IDC_COMMENTSTATIC, IDC_COMMENTEDIT,
519 IDC_PASSPHRASE1STATIC, IDC_PASSPHRASE1EDIT,
520 IDC_PASSPHRASE2STATIC, IDC_PASSPHRASE2EDIT, 0
521 };
522
523 /*
524 * Small UI helper function to switch the state of the main dialog
525 * by enabling and disabling controls and menu items.
526 */
527 void ui_set_state(HWND hwnd, struct MainDlgState *state, int status)
528 {
529 int type;
530
531 switch (status) {
532 case 0: /* no key */
533 hidemany(hwnd, nokey_ids, FALSE);
534 hidemany(hwnd, generating_ids, TRUE);
535 hidemany(hwnd, gotkey_ids, TRUE);
536 EnableWindow(GetDlgItem(hwnd, IDC_GENERATE), 1);
537 EnableWindow(GetDlgItem(hwnd, IDC_LOAD), 1);
538 EnableWindow(GetDlgItem(hwnd, IDC_SAVE), 0);
539 EnableWindow(GetDlgItem(hwnd, IDC_SAVEPUB), 0);
540 EnableWindow(GetDlgItem(hwnd, IDC_KEYSSH1), 1);
541 EnableWindow(GetDlgItem(hwnd, IDC_KEYSSH2RSA), 1);
542 EnableWindow(GetDlgItem(hwnd, IDC_KEYSSH2DSA), 1);
543 EnableWindow(GetDlgItem(hwnd, IDC_BITS), 1);
544 EnableMenuItem(state->filemenu, IDC_LOAD, MF_ENABLED|MF_BYCOMMAND);
545 EnableMenuItem(state->filemenu, IDC_SAVE, MF_GRAYED|MF_BYCOMMAND);
546 EnableMenuItem(state->filemenu, IDC_SAVEPUB, MF_GRAYED|MF_BYCOMMAND);
547 EnableMenuItem(state->keymenu, IDC_GENERATE, MF_ENABLED|MF_BYCOMMAND);
548 EnableMenuItem(state->keymenu, IDC_KEYSSH1, MF_ENABLED|MF_BYCOMMAND);
549 EnableMenuItem(state->keymenu, IDC_KEYSSH2RSA, MF_ENABLED|MF_BYCOMMAND);
550 EnableMenuItem(state->keymenu, IDC_KEYSSH2DSA, MF_ENABLED|MF_BYCOMMAND);
551 EnableMenuItem(state->cvtmenu, IDC_IMPORT, MF_ENABLED|MF_BYCOMMAND);
552 EnableMenuItem(state->cvtmenu, IDC_EXPORT_OPENSSH,
553 MF_GRAYED|MF_BYCOMMAND);
554 EnableMenuItem(state->cvtmenu, IDC_EXPORT_SSHCOM,
555 MF_GRAYED|MF_BYCOMMAND);
556 break;
557 case 1: /* generating key */
558 hidemany(hwnd, nokey_ids, TRUE);
559 hidemany(hwnd, generating_ids, FALSE);
560 hidemany(hwnd, gotkey_ids, TRUE);
561 EnableWindow(GetDlgItem(hwnd, IDC_GENERATE), 0);
562 EnableWindow(GetDlgItem(hwnd, IDC_LOAD), 0);
563 EnableWindow(GetDlgItem(hwnd, IDC_SAVE), 0);
564 EnableWindow(GetDlgItem(hwnd, IDC_SAVEPUB), 0);
565 EnableWindow(GetDlgItem(hwnd, IDC_KEYSSH1), 0);
566 EnableWindow(GetDlgItem(hwnd, IDC_KEYSSH2RSA), 0);
567 EnableWindow(GetDlgItem(hwnd, IDC_KEYSSH2DSA), 0);
568 EnableWindow(GetDlgItem(hwnd, IDC_BITS), 0);
569 EnableMenuItem(state->filemenu, IDC_LOAD, MF_GRAYED|MF_BYCOMMAND);
570 EnableMenuItem(state->filemenu, IDC_SAVE, MF_GRAYED|MF_BYCOMMAND);
571 EnableMenuItem(state->filemenu, IDC_SAVEPUB, MF_GRAYED|MF_BYCOMMAND);
572 EnableMenuItem(state->keymenu, IDC_GENERATE, MF_GRAYED|MF_BYCOMMAND);
573 EnableMenuItem(state->keymenu, IDC_KEYSSH1, MF_GRAYED|MF_BYCOMMAND);
574 EnableMenuItem(state->keymenu, IDC_KEYSSH2RSA, MF_GRAYED|MF_BYCOMMAND);
575 EnableMenuItem(state->keymenu, IDC_KEYSSH2DSA, MF_GRAYED|MF_BYCOMMAND);
576 EnableMenuItem(state->cvtmenu, IDC_IMPORT, MF_GRAYED|MF_BYCOMMAND);
577 EnableMenuItem(state->cvtmenu, IDC_EXPORT_OPENSSH,
578 MF_GRAYED|MF_BYCOMMAND);
579 EnableMenuItem(state->cvtmenu, IDC_EXPORT_SSHCOM,
580 MF_GRAYED|MF_BYCOMMAND);
581 break;
582 case 2:
583 hidemany(hwnd, nokey_ids, TRUE);
584 hidemany(hwnd, generating_ids, TRUE);
585 hidemany(hwnd, gotkey_ids, FALSE);
586 EnableWindow(GetDlgItem(hwnd, IDC_GENERATE), 1);
587 EnableWindow(GetDlgItem(hwnd, IDC_LOAD), 1);
588 EnableWindow(GetDlgItem(hwnd, IDC_SAVE), 1);
589 EnableWindow(GetDlgItem(hwnd, IDC_SAVEPUB), 1);
590 EnableWindow(GetDlgItem(hwnd, IDC_KEYSSH1), 1);
591 EnableWindow(GetDlgItem(hwnd, IDC_KEYSSH2RSA), 1);
592 EnableWindow(GetDlgItem(hwnd, IDC_KEYSSH2DSA), 1);
593 EnableWindow(GetDlgItem(hwnd, IDC_BITS), 1);
594 EnableMenuItem(state->filemenu, IDC_LOAD, MF_ENABLED|MF_BYCOMMAND);
595 EnableMenuItem(state->filemenu, IDC_SAVE, MF_ENABLED|MF_BYCOMMAND);
596 EnableMenuItem(state->filemenu, IDC_SAVEPUB, MF_ENABLED|MF_BYCOMMAND);
597 EnableMenuItem(state->keymenu, IDC_GENERATE, MF_ENABLED|MF_BYCOMMAND);
598 EnableMenuItem(state->keymenu, IDC_KEYSSH1, MF_ENABLED|MF_BYCOMMAND);
599 EnableMenuItem(state->keymenu, IDC_KEYSSH2RSA,MF_ENABLED|MF_BYCOMMAND);
600 EnableMenuItem(state->keymenu, IDC_KEYSSH2DSA,MF_ENABLED|MF_BYCOMMAND);
601 EnableMenuItem(state->cvtmenu, IDC_IMPORT, MF_ENABLED|MF_BYCOMMAND);
602 /*
603 * Enable export menu items if and only if the key type
604 * supports this kind of export.
605 */
606 type = state->ssh2 ? SSH_KEYTYPE_SSH2 : SSH_KEYTYPE_SSH1;
607 #define do_export_menuitem(x,y) \
608 EnableMenuItem(state->cvtmenu, x, MF_BYCOMMAND | \
609 (import_target_type(y)==type?MF_ENABLED:MF_GRAYED))
610 do_export_menuitem(IDC_EXPORT_OPENSSH, SSH_KEYTYPE_OPENSSH);
611 do_export_menuitem(IDC_EXPORT_SSHCOM, SSH_KEYTYPE_SSHCOM);
612 #undef do_export_menuitem
613 break;
614 }
615 }
616
617 void load_key_file(HWND hwnd, struct MainDlgState *state,
618 Filename filename, int was_import_cmd)
619 {
620 char passphrase[PASSPHRASE_MAXLEN];
621 int needs_pass;
622 int type, realtype;
623 int ret;
624 const char *errmsg = NULL;
625 char *comment;
626 struct PassphraseProcStruct pps;
627 struct RSAKey newkey1;
628 struct ssh2_userkey *newkey2 = NULL;
629
630 type = realtype = key_type(&filename);
631 if (type != SSH_KEYTYPE_SSH1 &&
632 type != SSH_KEYTYPE_SSH2 &&
633 !import_possible(type)) {
634 char *msg = dupprintf("Couldn't load private key (%s)",
635 key_type_to_str(type));
636 message_box(msg, "PuTTYgen Error", MB_OK | MB_ICONERROR,
637 HELPCTXID(errors_cantloadkey));
638 sfree(msg);
639 return;
640 }
641
642 if (type != SSH_KEYTYPE_SSH1 &&
643 type != SSH_KEYTYPE_SSH2) {
644 realtype = type;
645 type = import_target_type(type);
646 }
647
648 comment = NULL;
649 if (realtype == SSH_KEYTYPE_SSH1)
650 needs_pass = rsakey_encrypted(&filename, &comment);
651 else if (realtype == SSH_KEYTYPE_SSH2)
652 needs_pass =
653 ssh2_userkey_encrypted(&filename, &comment);
654 else
655 needs_pass = import_encrypted(&filename, realtype,
656 &comment);
657 pps.passphrase = passphrase;
658 pps.comment = comment;
659 do {
660 if (needs_pass) {
661 int dlgret;
662 dlgret = DialogBoxParam(hinst,
663 MAKEINTRESOURCE(210),
664 NULL, PassphraseProc,
665 (LPARAM) &pps);
666 if (!dlgret) {
667 ret = -2;
668 break;
669 }
670 } else
671 *passphrase = '\0';
672 if (type == SSH_KEYTYPE_SSH1) {
673 if (realtype == type)
674 ret = loadrsakey(&filename, &newkey1,
675 passphrase, &errmsg);
676 else
677 ret = import_ssh1(&filename, realtype,
678 &newkey1, passphrase, &errmsg);
679 } else {
680 if (realtype == type)
681 newkey2 = ssh2_load_userkey(&filename,
682 passphrase, &errmsg);
683 else
684 newkey2 = import_ssh2(&filename, realtype,
685 passphrase, &errmsg);
686 if (newkey2 == SSH2_WRONG_PASSPHRASE)
687 ret = -1;
688 else if (!newkey2)
689 ret = 0;
690 else
691 ret = 1;
692 }
693 } while (ret == -1);
694 if (comment)
695 sfree(comment);
696 if (ret == 0) {
697 char *msg = dupprintf("Couldn't load private key (%s)", errmsg);
698 message_box(msg, "PuTTYgen Error", MB_OK | MB_ICONERROR,
699 HELPCTXID(errors_cantloadkey));
700 sfree(msg);
701 } else if (ret == 1) {
702 /*
703 * Now update the key controls with all the
704 * key data.
705 */
706 {
707 SetDlgItemText(hwnd, IDC_PASSPHRASE1EDIT,
708 passphrase);
709 SetDlgItemText(hwnd, IDC_PASSPHRASE2EDIT,
710 passphrase);
711 if (type == SSH_KEYTYPE_SSH1) {
712 char buf[128];
713 char *savecomment;
714
715 state->ssh2 = FALSE;
716 state->commentptr = &state->key.comment;
717 state->key = newkey1;
718
719 /*
720 * Set the key fingerprint.
721 */
722 savecomment = state->key.comment;
723 state->key.comment = NULL;
724 rsa_fingerprint(buf, sizeof(buf),
725 &state->key);
726 state->key.comment = savecomment;
727
728 SetDlgItemText(hwnd, IDC_FINGERPRINT, buf);
729 /*
730 * Construct a decimal representation
731 * of the key, for pasting into
732 * .ssh/authorized_keys on a Unix box.
733 */
734 setupbigedit1(hwnd, IDC_KEYDISPLAY,
735 IDC_PKSTATIC, &state->key);
736 } else {
737 char *fp;
738 char *savecomment;
739
740 state->ssh2 = TRUE;
741 state->commentptr =
742 &state->ssh2key.comment;
743 state->ssh2key = *newkey2; /* structure copy */
744 sfree(newkey2);
745
746 savecomment = state->ssh2key.comment;
747 state->ssh2key.comment = NULL;
748 fp =
749 state->ssh2key.alg->
750 fingerprint(state->ssh2key.data);
751 state->ssh2key.comment = savecomment;
752
753 SetDlgItemText(hwnd, IDC_FINGERPRINT, fp);
754 sfree(fp);
755
756 setupbigedit2(hwnd, IDC_KEYDISPLAY,
757 IDC_PKSTATIC, &state->ssh2key);
758 }
759 SetDlgItemText(hwnd, IDC_COMMENTEDIT,
760 *state->commentptr);
761 }
762 /*
763 * Finally, hide the progress bar and show
764 * the key data.
765 */
766 ui_set_state(hwnd, state, 2);
767 state->key_exists = TRUE;
768
769 /*
770 * If the user has imported a foreign key
771 * using the Load command, let them know.
772 * If they've used the Import command, be
773 * silent.
774 */
775 if (realtype != type && !was_import_cmd) {
776 char msg[512];
777 sprintf(msg, "Successfully imported foreign key\n"
778 "(%s).\n"
779 "To use this key with PuTTY, you need to\n"
780 "use the \"Save private key\" command to\n"
781 "save it in PuTTY's own format.",
782 key_type_to_str(realtype));
783 MessageBox(NULL, msg, "PuTTYgen Notice",
784 MB_OK | MB_ICONINFORMATION);
785 }
786 }
787 }
788
789 /*
790 * Dialog-box function for the main PuTTYgen dialog box.
791 */
792 static int CALLBACK MainDlgProc(HWND hwnd, UINT msg,
793 WPARAM wParam, LPARAM lParam)
794 {
795 static const char generating_msg[] =
796 "Please wait while a key is generated...";
797 static const char entropy_msg[] =
798 "Please generate some randomness by moving the mouse over the blank area.";
799 struct MainDlgState *state;
800
801 switch (msg) {
802 case WM_INITDIALOG:
803 if (help_path)
804 SetWindowLongPtr(hwnd, GWL_EXSTYLE,
805 GetWindowLongPtr(hwnd, GWL_EXSTYLE) |
806 WS_EX_CONTEXTHELP);
807 else {
808 /*
809 * If we add a Help button, this is where we destroy it
810 * if the help file isn't present.
811 */
812 }
813 requested_help = FALSE;
814 SendMessage(hwnd, WM_SETICON, (WPARAM) ICON_BIG,
815 (LPARAM) LoadIcon(hinst, MAKEINTRESOURCE(200)));
816
817 state = snew(struct MainDlgState);
818 state->generation_thread_exists = FALSE;
819 state->collecting_entropy = FALSE;
820 state->entropy = NULL;
821 state->key_exists = FALSE;
822 SetWindowLongPtr(hwnd, GWLP_USERDATA, (LONG_PTR) state);
823 {
824 HMENU menu, menu1;
825
826 menu = CreateMenu();
827
828 menu1 = CreateMenu();
829 AppendMenu(menu1, MF_ENABLED, IDC_LOAD, "&Load private key");
830 AppendMenu(menu1, MF_ENABLED, IDC_SAVEPUB, "Save p&ublic key");
831 AppendMenu(menu1, MF_ENABLED, IDC_SAVE, "&Save private key");
832 AppendMenu(menu1, MF_SEPARATOR, 0, 0);
833 AppendMenu(menu1, MF_ENABLED, IDC_QUIT, "E&xit");
834 AppendMenu(menu, MF_POPUP | MF_ENABLED, (UINT) menu1, "&File");
835 state->filemenu = menu1;
836
837 menu1 = CreateMenu();
838 AppendMenu(menu1, MF_ENABLED, IDC_GENERATE, "&Generate key pair");
839 AppendMenu(menu1, MF_SEPARATOR, 0, 0);
840 AppendMenu(menu1, MF_ENABLED, IDC_KEYSSH1, "SSH-&1 key (RSA)");
841 AppendMenu(menu1, MF_ENABLED, IDC_KEYSSH2RSA, "SSH-2 &RSA key");
842 AppendMenu(menu1, MF_ENABLED, IDC_KEYSSH2DSA, "SSH-2 &DSA key");
843 AppendMenu(menu, MF_POPUP | MF_ENABLED, (UINT) menu1, "&Key");
844 state->keymenu = menu1;
845
846 menu1 = CreateMenu();
847 AppendMenu(menu1, MF_ENABLED, IDC_IMPORT, "&Import key");
848 AppendMenu(menu1, MF_SEPARATOR, 0, 0);
849 AppendMenu(menu1, MF_ENABLED, IDC_EXPORT_OPENSSH,
850 "Export &OpenSSH key");
851 AppendMenu(menu1, MF_ENABLED, IDC_EXPORT_SSHCOM,
852 "Export &ssh.com key");
853 AppendMenu(menu, MF_POPUP | MF_ENABLED, (UINT) menu1,
854 "Con&versions");
855 state->cvtmenu = menu1;
856
857 menu1 = CreateMenu();
858 AppendMenu(menu1, MF_ENABLED, IDC_ABOUT, "&About");
859 if (help_path)
860 AppendMenu(menu1, MF_ENABLED, IDC_GIVEHELP, "&Help");
861 AppendMenu(menu, MF_POPUP | MF_ENABLED, (UINT) menu1, "&Help");
862
863 SetMenu(hwnd, menu);
864 }
865
866 /*
867 * Centre the window.
868 */
869 { /* centre the window */
870 RECT rs, rd;
871 HWND hw;
872
873 hw = GetDesktopWindow();
874 if (GetWindowRect(hw, &rs) && GetWindowRect(hwnd, &rd))
875 MoveWindow(hwnd,
876 (rs.right + rs.left + rd.left - rd.right) / 2,
877 (rs.bottom + rs.top + rd.top - rd.bottom) / 2,
878 rd.right - rd.left, rd.bottom - rd.top, TRUE);
879 }
880
881 {
882 struct ctlpos cp, cp2;
883
884 /* Accelerators used: acglops1rbd */
885
886 ctlposinit(&cp, hwnd, 4, 4, 4);
887 beginbox(&cp, "Key", IDC_BOX_KEY);
888 cp2 = cp;
889 statictext(&cp2, "No key.", 1, IDC_NOKEY);
890 cp2 = cp;
891 statictext(&cp2, "", 1, IDC_GENERATING);
892 progressbar(&cp2, IDC_PROGRESS);
893 bigeditctrl(&cp,
894 "&Public key for pasting into authorized_keys file:",
895 IDC_PKSTATIC, IDC_KEYDISPLAY, 5);
896 SendDlgItemMessage(hwnd, IDC_KEYDISPLAY, EM_SETREADONLY, 1, 0);
897 staticedit(&cp, "Key f&ingerprint:", IDC_FPSTATIC,
898 IDC_FINGERPRINT, 75);
899 SendDlgItemMessage(hwnd, IDC_FINGERPRINT, EM_SETREADONLY, 1,
900 0);
901 staticedit(&cp, "Key &comment:", IDC_COMMENTSTATIC,
902 IDC_COMMENTEDIT, 75);
903 staticpassedit(&cp, "Key p&assphrase:", IDC_PASSPHRASE1STATIC,
904 IDC_PASSPHRASE1EDIT, 75);
905 staticpassedit(&cp, "C&onfirm passphrase:",
906 IDC_PASSPHRASE2STATIC, IDC_PASSPHRASE2EDIT, 75);
907 endbox(&cp);
908 beginbox(&cp, "Actions", IDC_BOX_ACTIONS);
909 staticbtn(&cp, "Generate a public/private key pair",
910 IDC_GENSTATIC, "&Generate", IDC_GENERATE);
911 staticbtn(&cp, "Load an existing private key file",
912 IDC_LOADSTATIC, "&Load", IDC_LOAD);
913 static2btn(&cp, "Save the generated key", IDC_SAVESTATIC,
914 "Save p&ublic key", IDC_SAVEPUB,
915 "&Save private key", IDC_SAVE);
916 endbox(&cp);
917 beginbox(&cp, "Parameters", IDC_BOX_PARAMS);
918 radioline(&cp, "Type of key to generate:", IDC_TYPESTATIC, 3,
919 "SSH-&1 (RSA)", IDC_KEYSSH1,
920 "SSH-2 &RSA", IDC_KEYSSH2RSA,
921 "SSH-2 &DSA", IDC_KEYSSH2DSA, NULL);
922 staticedit(&cp, "Number of &bits in a generated key:",
923 IDC_BITSSTATIC, IDC_BITS, 20);
924 endbox(&cp);
925 }
926 CheckRadioButton(hwnd, IDC_KEYSSH1, IDC_KEYSSH2DSA, IDC_KEYSSH2RSA);
927 CheckMenuRadioItem(state->keymenu, IDC_KEYSSH1, IDC_KEYSSH2DSA,
928 IDC_KEYSSH2RSA, MF_BYCOMMAND);
929 SetDlgItemInt(hwnd, IDC_BITS, DEFAULT_KEYSIZE, FALSE);
930
931 /*
932 * Initially, hide the progress bar and the key display,
933 * and show the no-key display. Also disable the Save
934 * buttons, because with no key we obviously can't save
935 * anything.
936 */
937 ui_set_state(hwnd, state, 0);
938
939 /*
940 * Load a key file if one was provided on the command line.
941 */
942 if (cmdline_keyfile)
943 load_key_file(hwnd, state, filename_from_str(cmdline_keyfile), 0);
944
945 return 1;
946 case WM_MOUSEMOVE:
947 state = (struct MainDlgState *) GetWindowLongPtr(hwnd, GWLP_USERDATA);
948 if (state->collecting_entropy &&
949 state->entropy && state->entropy_got < state->entropy_required) {
950 state->entropy[state->entropy_got++] = lParam;
951 state->entropy[state->entropy_got++] = GetMessageTime();
952 SendDlgItemMessage(hwnd, IDC_PROGRESS, PBM_SETPOS,
953 state->entropy_got, 0);
954 if (state->entropy_got >= state->entropy_required) {
955 struct rsa_key_thread_params *params;
956 DWORD threadid;
957
958 /*
959 * Seed the entropy pool
960 */
961 random_add_heavynoise(state->entropy, state->entropy_size);
962 memset(state->entropy, 0, state->entropy_size);
963 sfree(state->entropy);
964 state->collecting_entropy = FALSE;
965
966 SetDlgItemText(hwnd, IDC_GENERATING, generating_msg);
967 SendDlgItemMessage(hwnd, IDC_PROGRESS, PBM_SETRANGE, 0,
968 MAKELPARAM(0, PROGRESSRANGE));
969 SendDlgItemMessage(hwnd, IDC_PROGRESS, PBM_SETPOS, 0, 0);
970
971 params = snew(struct rsa_key_thread_params);
972 params->progressbar = GetDlgItem(hwnd, IDC_PROGRESS);
973 params->dialog = hwnd;
974 params->keysize = state->keysize;
975 params->is_dsa = state->is_dsa;
976 params->key = &state->key;
977 params->dsskey = &state->dsskey;
978
979 if (!CreateThread(NULL, 0, generate_rsa_key_thread,
980 params, 0, &threadid)) {
981 MessageBox(hwnd, "Out of thread resources",
982 "Key generation error",
983 MB_OK | MB_ICONERROR);
984 sfree(params);
985 } else {
986 state->generation_thread_exists = TRUE;
987 }
988 }
989 }
990 break;
991 case WM_COMMAND:
992 switch (LOWORD(wParam)) {
993 case IDC_KEYSSH1:
994 case IDC_KEYSSH2RSA:
995 case IDC_KEYSSH2DSA:
996 {
997 state = (struct MainDlgState *)
998 GetWindowLongPtr(hwnd, GWLP_USERDATA);
999 if (!IsDlgButtonChecked(hwnd, LOWORD(wParam)))
1000 CheckRadioButton(hwnd, IDC_KEYSSH1, IDC_KEYSSH2DSA,
1001 LOWORD(wParam));
1002 CheckMenuRadioItem(state->keymenu, IDC_KEYSSH1, IDC_KEYSSH2DSA,
1003 LOWORD(wParam), MF_BYCOMMAND);
1004 }
1005 break;
1006 case IDC_QUIT:
1007 PostMessage(hwnd, WM_CLOSE, 0, 0);
1008 break;
1009 case IDC_COMMENTEDIT:
1010 if (HIWORD(wParam) == EN_CHANGE) {
1011 state = (struct MainDlgState *)
1012 GetWindowLongPtr(hwnd, GWLP_USERDATA);
1013 if (state->key_exists) {
1014 HWND editctl = GetDlgItem(hwnd, IDC_COMMENTEDIT);
1015 int len = GetWindowTextLength(editctl);
1016 if (*state->commentptr)
1017 sfree(*state->commentptr);
1018 *state->commentptr = snewn(len + 1, char);
1019 GetWindowText(editctl, *state->commentptr, len + 1);
1020 if (state->ssh2) {
1021 setupbigedit2(hwnd, IDC_KEYDISPLAY, IDC_PKSTATIC,
1022 &state->ssh2key);
1023 } else {
1024 setupbigedit1(hwnd, IDC_KEYDISPLAY, IDC_PKSTATIC,
1025 &state->key);
1026 }
1027 }
1028 }
1029 break;
1030 case IDC_ABOUT:
1031 EnableWindow(hwnd, 0);
1032 DialogBox(hinst, MAKEINTRESOURCE(213), hwnd, AboutProc);
1033 EnableWindow(hwnd, 1);
1034 SetActiveWindow(hwnd);
1035 return 0;
1036 case IDC_GIVEHELP:
1037 if (HIWORD(wParam) == BN_CLICKED ||
1038 HIWORD(wParam) == BN_DOUBLECLICKED) {
1039 if (help_path) {
1040 WinHelp(hwnd, help_path, HELP_COMMAND,
1041 (DWORD)"JI(`',`puttygen.general')");
1042 requested_help = TRUE;
1043 }
1044 }
1045 return 0;
1046 case IDC_GENERATE:
1047 if (HIWORD(wParam) != BN_CLICKED &&
1048 HIWORD(wParam) != BN_DOUBLECLICKED)
1049 break;
1050 state =
1051 (struct MainDlgState *) GetWindowLongPtr(hwnd, GWLP_USERDATA);
1052 if (!state->generation_thread_exists) {
1053 BOOL ok;
1054 state->keysize = GetDlgItemInt(hwnd, IDC_BITS, &ok, FALSE);
1055 if (!ok)
1056 state->keysize = DEFAULT_KEYSIZE;
1057 /* If we ever introduce a new key type, check it here! */
1058 state->ssh2 = !IsDlgButtonChecked(hwnd, IDC_KEYSSH1);
1059 state->is_dsa = IsDlgButtonChecked(hwnd, IDC_KEYSSH2DSA);
1060 if (state->keysize < 256) {
1061 int ret = MessageBox(hwnd,
1062 "PuTTYgen will not generate a key"
1063 " smaller than 256 bits.\n"
1064 "Key length reset to 256. Continue?",
1065 "PuTTYgen Warning",
1066 MB_ICONWARNING | MB_OKCANCEL);
1067 if (ret != IDOK)
1068 break;
1069 state->keysize = 256;
1070 SetDlgItemInt(hwnd, IDC_BITS, 256, FALSE);
1071 }
1072 ui_set_state(hwnd, state, 1);
1073 SetDlgItemText(hwnd, IDC_GENERATING, entropy_msg);
1074 state->key_exists = FALSE;
1075 state->collecting_entropy = TRUE;
1076
1077 /*
1078 * My brief statistical tests on mouse movements
1079 * suggest that there are about 2.5 bits of
1080 * randomness in the x position, 2.5 in the y
1081 * position, and 1.7 in the message time, making
1082 * 5.7 bits of unpredictability per mouse movement.
1083 * However, other people have told me it's far less
1084 * than that, so I'm going to be stupidly cautious
1085 * and knock that down to a nice round 2. With this
1086 * method, we require two words per mouse movement,
1087 * so with 2 bits per mouse movement we expect 2
1088 * bits every 2 words.
1089 */
1090 state->entropy_required = (state->keysize / 2) * 2;
1091 state->entropy_got = 0;
1092 state->entropy_size = (state->entropy_required *
1093 sizeof(unsigned));
1094 state->entropy = snewn(state->entropy_required, unsigned);
1095
1096 SendDlgItemMessage(hwnd, IDC_PROGRESS, PBM_SETRANGE, 0,
1097 MAKELPARAM(0, state->entropy_required));
1098 SendDlgItemMessage(hwnd, IDC_PROGRESS, PBM_SETPOS, 0, 0);
1099 }
1100 break;
1101 case IDC_SAVE:
1102 case IDC_EXPORT_OPENSSH:
1103 case IDC_EXPORT_SSHCOM:
1104 if (HIWORD(wParam) != BN_CLICKED)
1105 break;
1106 state =
1107 (struct MainDlgState *) GetWindowLongPtr(hwnd, GWLP_USERDATA);
1108 if (state->key_exists) {
1109 char filename[FILENAME_MAX];
1110 char passphrase[PASSPHRASE_MAXLEN];
1111 char passphrase2[PASSPHRASE_MAXLEN];
1112 int type, realtype;
1113
1114 if (state->ssh2)
1115 realtype = SSH_KEYTYPE_SSH2;
1116 else
1117 realtype = SSH_KEYTYPE_SSH1;
1118
1119 if (LOWORD(wParam) == IDC_EXPORT_OPENSSH)
1120 type = SSH_KEYTYPE_OPENSSH;
1121 else if (LOWORD(wParam) == IDC_EXPORT_SSHCOM)
1122 type = SSH_KEYTYPE_SSHCOM;
1123 else
1124 type = realtype;
1125
1126 if (type != realtype &&
1127 import_target_type(type) != realtype) {
1128 char msg[256];
1129 sprintf(msg, "Cannot export an SSH-%d key in an SSH-%d"
1130 " format", (state->ssh2 ? 2 : 1),
1131 (state->ssh2 ? 1 : 2));
1132 MessageBox(hwnd, msg,
1133 "PuTTYgen Error", MB_OK | MB_ICONERROR);
1134 break;
1135 }
1136
1137 GetDlgItemText(hwnd, IDC_PASSPHRASE1EDIT,
1138 passphrase, sizeof(passphrase));
1139 GetDlgItemText(hwnd, IDC_PASSPHRASE2EDIT,
1140 passphrase2, sizeof(passphrase2));
1141 if (strcmp(passphrase, passphrase2)) {
1142 MessageBox(hwnd,
1143 "The two passphrases given do not match.",
1144 "PuTTYgen Error", MB_OK | MB_ICONERROR);
1145 break;
1146 }
1147 if (!*passphrase) {
1148 int ret;
1149 ret = MessageBox(hwnd,
1150 "Are you sure you want to save this key\n"
1151 "without a passphrase to protect it?",
1152 "PuTTYgen Warning",
1153 MB_YESNO | MB_ICONWARNING);
1154 if (ret != IDYES)
1155 break;
1156 }
1157 if (prompt_keyfile(hwnd, "Save private key as:",
1158 filename, 1, (type == realtype))) {
1159 int ret;
1160 FILE *fp = fopen(filename, "r");
1161 if (fp) {
1162 char *buffer;
1163 fclose(fp);
1164 buffer = dupprintf("Overwrite existing file\n%s?",
1165 filename);
1166 ret = MessageBox(hwnd, buffer, "PuTTYgen Warning",
1167 MB_YESNO | MB_ICONWARNING);
1168 sfree(buffer);
1169 if (ret != IDYES)
1170 break;
1171 }
1172
1173 if (state->ssh2) {
1174 Filename fn = filename_from_str(filename);
1175 if (type != realtype)
1176 ret = export_ssh2(&fn, type, &state->ssh2key,
1177 *passphrase ? passphrase : NULL);
1178 else
1179 ret = ssh2_save_userkey(&fn, &state->ssh2key,
1180 *passphrase ? passphrase :
1181 NULL);
1182 } else {
1183 Filename fn = filename_from_str(filename);
1184 if (type != realtype)
1185 ret = export_ssh1(&fn, type, &state->key,
1186 *passphrase ? passphrase : NULL);
1187 else
1188 ret = saversakey(&fn, &state->key,
1189 *passphrase ? passphrase : NULL);
1190 }
1191 if (ret <= 0) {
1192 MessageBox(hwnd, "Unable to save key file",
1193 "PuTTYgen Error", MB_OK | MB_ICONERROR);
1194 }
1195 }
1196 }
1197 break;
1198 case IDC_SAVEPUB:
1199 if (HIWORD(wParam) != BN_CLICKED)
1200 break;
1201 state =
1202 (struct MainDlgState *) GetWindowLongPtr(hwnd, GWLP_USERDATA);
1203 if (state->key_exists) {
1204 char filename[FILENAME_MAX];
1205 if (prompt_keyfile(hwnd, "Save public key as:",
1206 filename, 1, 0)) {
1207 int ret;
1208 FILE *fp = fopen(filename, "r");
1209 if (fp) {
1210 char *buffer;
1211 fclose(fp);
1212 buffer = dupprintf("Overwrite existing file\n%s?",
1213 filename);
1214 ret = MessageBox(hwnd, buffer, "PuTTYgen Warning",
1215 MB_YESNO | MB_ICONWARNING);
1216 sfree(buffer);
1217 if (ret != IDYES)
1218 break;
1219 }
1220 if (state->ssh2) {
1221 ret = save_ssh2_pubkey(filename, &state->ssh2key);
1222 } else {
1223 ret = save_ssh1_pubkey(filename, &state->key);
1224 }
1225 if (ret <= 0) {
1226 MessageBox(hwnd, "Unable to save key file",
1227 "PuTTYgen Error", MB_OK | MB_ICONERROR);
1228 }
1229 }
1230 }
1231 break;
1232 case IDC_LOAD:
1233 case IDC_IMPORT:
1234 if (HIWORD(wParam) != BN_CLICKED)
1235 break;
1236 state =
1237 (struct MainDlgState *) GetWindowLongPtr(hwnd, GWLP_USERDATA);
1238 if (!state->generation_thread_exists) {
1239 char filename[FILENAME_MAX];
1240 if (prompt_keyfile(hwnd, "Load private key:",
1241 filename, 0, LOWORD(wParam)==IDC_LOAD))
1242 load_key_file(hwnd, state, filename_from_str(filename),
1243 LOWORD(wParam) != IDC_LOAD);
1244 }
1245 break;
1246 }
1247 return 0;
1248 case WM_DONEKEY:
1249 state = (struct MainDlgState *) GetWindowLongPtr(hwnd, GWLP_USERDATA);
1250 state->generation_thread_exists = FALSE;
1251 state->key_exists = TRUE;
1252 SendDlgItemMessage(hwnd, IDC_PROGRESS, PBM_SETRANGE, 0,
1253 MAKELPARAM(0, PROGRESSRANGE));
1254 SendDlgItemMessage(hwnd, IDC_PROGRESS, PBM_SETPOS, PROGRESSRANGE, 0);
1255 if (state->ssh2) {
1256 if (state->is_dsa) {
1257 state->ssh2key.data = &state->dsskey;
1258 state->ssh2key.alg = &ssh_dss;
1259 } else {
1260 state->ssh2key.data = &state->key;
1261 state->ssh2key.alg = &ssh_rsa;
1262 }
1263 state->commentptr = &state->ssh2key.comment;
1264 } else {
1265 state->commentptr = &state->key.comment;
1266 }
1267 /*
1268 * Invent a comment for the key. We'll do this by including
1269 * the date in it. This will be so horrifyingly ugly that
1270 * the user will immediately want to change it, which is
1271 * what we want :-)
1272 */
1273 *state->commentptr = snewn(30, char);
1274 {
1275 struct tm tm;
1276 tm = ltime();
1277 if (state->is_dsa)
1278 strftime(*state->commentptr, 30, "dsa-key-%Y%m%d", &tm);
1279 else
1280 strftime(*state->commentptr, 30, "rsa-key-%Y%m%d", &tm);
1281 }
1282
1283 /*
1284 * Now update the key controls with all the key data.
1285 */
1286 {
1287 char *savecomment;
1288 /*
1289 * Blank passphrase, initially. This isn't dangerous,
1290 * because we will warn (Are You Sure?) before allowing
1291 * the user to save an unprotected private key.
1292 */
1293 SetDlgItemText(hwnd, IDC_PASSPHRASE1EDIT, "");
1294 SetDlgItemText(hwnd, IDC_PASSPHRASE2EDIT, "");
1295 /*
1296 * Set the comment.
1297 */
1298 SetDlgItemText(hwnd, IDC_COMMENTEDIT, *state->commentptr);
1299 /*
1300 * Set the key fingerprint.
1301 */
1302 savecomment = *state->commentptr;
1303 *state->commentptr = NULL;
1304 if (state->ssh2) {
1305 char *fp;
1306 fp = state->ssh2key.alg->fingerprint(state->ssh2key.data);
1307 SetDlgItemText(hwnd, IDC_FINGERPRINT, fp);
1308 sfree(fp);
1309 } else {
1310 char buf[128];
1311 rsa_fingerprint(buf, sizeof(buf), &state->key);
1312 SetDlgItemText(hwnd, IDC_FINGERPRINT, buf);
1313 }
1314 *state->commentptr = savecomment;
1315 /*
1316 * Construct a decimal representation of the key, for
1317 * pasting into .ssh/authorized_keys or
1318 * .ssh/authorized_keys2 on a Unix box.
1319 */
1320 if (state->ssh2) {
1321 setupbigedit2(hwnd, IDC_KEYDISPLAY,
1322 IDC_PKSTATIC, &state->ssh2key);
1323 } else {
1324 setupbigedit1(hwnd, IDC_KEYDISPLAY,
1325 IDC_PKSTATIC, &state->key);
1326 }
1327 }
1328 /*
1329 * Finally, hide the progress bar and show the key data.
1330 */
1331 ui_set_state(hwnd, state, 2);
1332 break;
1333 case WM_HELP:
1334 if (help_path) {
1335 int id = ((LPHELPINFO)lParam)->iCtrlId;
1336 char *topic = NULL;
1337 switch (id) {
1338 case IDC_GENERATING:
1339 case IDC_PROGRESS:
1340 case IDC_GENSTATIC:
1341 case IDC_GENERATE:
1342 topic = "puttygen.generate"; break;
1343 case IDC_PKSTATIC:
1344 case IDC_KEYDISPLAY:
1345 topic = "puttygen.pastekey"; break;
1346 case IDC_FPSTATIC:
1347 case IDC_FINGERPRINT:
1348 topic = "puttygen.fingerprint"; break;
1349 case IDC_COMMENTSTATIC:
1350 case IDC_COMMENTEDIT:
1351 topic = "puttygen.comment"; break;
1352 case IDC_PASSPHRASE1STATIC:
1353 case IDC_PASSPHRASE1EDIT:
1354 case IDC_PASSPHRASE2STATIC:
1355 case IDC_PASSPHRASE2EDIT:
1356 topic = "puttygen.passphrase"; break;
1357 case IDC_LOADSTATIC:
1358 case IDC_LOAD:
1359 topic = "puttygen.load"; break;
1360 case IDC_SAVESTATIC:
1361 case IDC_SAVE:
1362 topic = "puttygen.savepriv"; break;
1363 case IDC_SAVEPUB:
1364 topic = "puttygen.savepub"; break;
1365 case IDC_TYPESTATIC:
1366 case IDC_KEYSSH1:
1367 case IDC_KEYSSH2RSA:
1368 case IDC_KEYSSH2DSA:
1369 topic = "puttygen.keytype"; break;
1370 case IDC_BITSSTATIC:
1371 case IDC_BITS:
1372 topic = "puttygen.bits"; break;
1373 case IDC_IMPORT:
1374 case IDC_EXPORT_OPENSSH:
1375 case IDC_EXPORT_SSHCOM:
1376 topic = "puttygen.conversions"; break;
1377 }
1378 if (topic) {
1379 char *cmd = dupprintf("JI(`',`%s')", topic);
1380 WinHelp(hwnd, help_path, HELP_COMMAND, (DWORD)cmd);
1381 sfree(cmd);
1382 requested_help = TRUE;
1383 } else {
1384 MessageBeep(0);
1385 }
1386 }
1387 break;
1388 case WM_CLOSE:
1389 state = (struct MainDlgState *) GetWindowLongPtr(hwnd, GWLP_USERDATA);
1390 sfree(state);
1391 if (requested_help) {
1392 WinHelp(hwnd, help_path, HELP_QUIT, 0);
1393 requested_help = FALSE;
1394 }
1395 EndDialog(hwnd, 1);
1396 return 0;
1397 }
1398 return 0;
1399 }
1400
1401 void cleanup_exit(int code) { exit(code); }
1402
1403 int WINAPI WinMain(HINSTANCE inst, HINSTANCE prev, LPSTR cmdline, int show)
1404 {
1405 int argc;
1406 char **argv;
1407
1408 InitCommonControls();
1409 hinst = inst;
1410 hwnd = NULL;
1411
1412 /*
1413 * See if we can find our Help file.
1414 */
1415 {
1416 char b[2048], *p, *q, *r;
1417 FILE *fp;
1418 GetModuleFileName(NULL, b, sizeof(b) - 1);
1419 r = b;
1420 p = strrchr(b, '\\');
1421 if (p && p >= r) r = p+1;
1422 q = strrchr(b, ':');
1423 if (q && q >= r) r = q+1;
1424 strcpy(r, PUTTY_HELP_FILE);
1425 if ( (fp = fopen(b, "r")) != NULL) {
1426 help_path = dupstr(b);
1427 fclose(fp);
1428 } else
1429 help_path = NULL;
1430 }
1431
1432 split_into_argv(cmdline, &argc, &argv, NULL);
1433
1434 if (argc > 0) {
1435 if (!strcmp(argv[0], "-pgpfp")) {
1436 pgp_fingerprints();
1437 exit(1);
1438 } else {
1439 /*
1440 * Assume the first argument to be a private key file, and
1441 * attempt to load it.
1442 */
1443 cmdline_keyfile = argv[0];
1444 }
1445 }
1446
1447 random_ref();
1448 return DialogBox(hinst, MAKEINTRESOURCE(201), NULL,
1449 MainDlgProc) != IDOK;
1450 }
Simon Tatham's PuTTY GUI SSH client; import of svn://svn.tartarus.org/sgt/putty