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Commit | Line | Data |
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f2561fda MM |
1 | /* |
2 | * git-imap-send - drops patches into an imap Drafts folder | |
3 | * derived from isync/mbsync - mailbox synchronizer | |
4 | * | |
5 | * Copyright (C) 2000-2002 Michael R. Elkins <me@mutt.org> | |
6 | * Copyright (C) 2002-2004 Oswald Buddenhagen <ossi@users.sf.net> | |
7 | * Copyright (C) 2004 Theodore Y. Ts'o <tytso@mit.edu> | |
8 | * Copyright (C) 2006 Mike McCormack | |
9 | * | |
10 | * This program is free software; you can redistribute it and/or modify | |
11 | * it under the terms of the GNU General Public License as published by | |
12 | * the Free Software Foundation; either version 2 of the License, or | |
13 | * (at your option) any later version. | |
14 | * | |
15 | * This program is distributed in the hope that it will be useful, | |
16 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
18 | * GNU General Public License for more details. | |
19 | * | |
20 | * You should have received a copy of the GNU General Public License | |
21 | * along with this program; if not, write to the Free Software | |
22 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
23 | */ | |
24 | ||
25 | #include "cache.h" | |
2fb3f6db | 26 | #include "exec_cmd.h" |
c94d2dd0 | 27 | #include "run-command.h" |
d3c58b83 | 28 | #include "prompt.h" |
684ec6c6 RS |
29 | #ifdef NO_OPENSSL |
30 | typedef void *SSL; | |
31 | #endif | |
f2561fda | 32 | |
9a2861e3 | 33 | static const char imap_send_usage[] = "git imap-send < <mbox>"; |
f2561fda | 34 | |
d23b1ecf | 35 | #undef DRV_OK |
f2561fda MM |
36 | #define DRV_OK 0 |
37 | #define DRV_MSG_BAD -1 | |
38 | #define DRV_BOX_BAD -2 | |
39 | #define DRV_STORE_BAD -3 | |
40 | ||
41 | static int Verbose, Quiet; | |
42 | ||
28bea9e5 | 43 | __attribute__((format (printf, 1, 2))) |
95c53908 | 44 | static void imap_info(const char *, ...); |
28bea9e5 | 45 | __attribute__((format (printf, 1, 2))) |
95c53908 | 46 | static void imap_warn(const char *, ...); |
f2561fda | 47 | |
95c53908 | 48 | static char *next_arg(char **); |
f2561fda | 49 | |
28bea9e5 | 50 | __attribute__((format (printf, 3, 4))) |
95c53908 | 51 | static int nfsnprintf(char *buf, int blen, const char *fmt, ...); |
f2561fda | 52 | |
19247e55 PH |
53 | static int nfvasprintf(char **strp, const char *fmt, va_list ap) |
54 | { | |
55 | int len; | |
56 | char tmp[8192]; | |
57 | ||
58 | len = vsnprintf(tmp, sizeof(tmp), fmt, ap); | |
59 | if (len < 0) | |
d7530708 | 60 | die("Fatal: Out of memory"); |
19247e55 | 61 | if (len >= sizeof(tmp)) |
d7530708 | 62 | die("imap command overflow!"); |
19247e55 PH |
63 | *strp = xmemdupz(tmp, len); |
64 | return len; | |
65 | } | |
f2561fda | 66 | |
9f1ad541 | 67 | struct imap_server_conf { |
f2561fda MM |
68 | char *name; |
69 | char *tunnel; | |
70 | char *host; | |
71 | int port; | |
72 | char *user; | |
73 | char *pass; | |
684ec6c6 RS |
74 | int use_ssl; |
75 | int ssl_verify; | |
c64d84f1 | 76 | int use_html; |
ae9c606e HM |
77 | char *auth_method; |
78 | }; | |
79 | ||
80 | static struct imap_server_conf server = { | |
81 | NULL, /* name */ | |
82 | NULL, /* tunnel */ | |
83 | NULL, /* host */ | |
84 | 0, /* port */ | |
85 | NULL, /* user */ | |
86 | NULL, /* pass */ | |
87 | 0, /* use_ssl */ | |
88 | 1, /* ssl_verify */ | |
89 | 0, /* use_html */ | |
90 | NULL, /* auth_method */ | |
9f1ad541 | 91 | }; |
f2561fda | 92 | |
9f1ad541 | 93 | struct imap_socket { |
7a7796e9 | 94 | int fd[2]; |
684ec6c6 | 95 | SSL *ssl; |
9f1ad541 | 96 | }; |
f2561fda | 97 | |
9f1ad541 JH |
98 | struct imap_buffer { |
99 | struct imap_socket sock; | |
f2561fda MM |
100 | int bytes; |
101 | int offset; | |
102 | char buf[1024]; | |
9f1ad541 | 103 | }; |
f2561fda MM |
104 | |
105 | struct imap_cmd; | |
106 | ||
9f1ad541 | 107 | struct imap { |
f2561fda | 108 | int uidnext; /* from SELECT responses */ |
f2561fda MM |
109 | unsigned caps, rcaps; /* CAPABILITY results */ |
110 | /* command queue */ | |
111 | int nexttag, num_in_progress, literal_pending; | |
112 | struct imap_cmd *in_progress, **in_progress_append; | |
9f1ad541 JH |
113 | struct imap_buffer buf; /* this is BIG, so put it last */ |
114 | }; | |
f2561fda | 115 | |
9f1ad541 | 116 | struct imap_store { |
636fd66b MH |
117 | /* currently open mailbox */ |
118 | const char *name; /* foreign! maybe preset? */ | |
119 | int uidvalidity; | |
9f1ad541 | 120 | struct imap *imap; |
f2561fda | 121 | const char *prefix; |
9f1ad541 | 122 | }; |
f2561fda MM |
123 | |
124 | struct imap_cmd_cb { | |
9f1ad541 JH |
125 | int (*cont)(struct imap_store *ctx, struct imap_cmd *cmd, const char *prompt); |
126 | void (*done)(struct imap_store *ctx, struct imap_cmd *cmd, int response); | |
f2561fda MM |
127 | void *ctx; |
128 | char *data; | |
129 | int dlen; | |
130 | int uid; | |
131 | unsigned create:1, trycreate:1; | |
132 | }; | |
133 | ||
134 | struct imap_cmd { | |
135 | struct imap_cmd *next; | |
136 | struct imap_cmd_cb cb; | |
137 | char *cmd; | |
138 | int tag; | |
139 | }; | |
140 | ||
141 | #define CAP(cap) (imap->caps & (1 << (cap))) | |
142 | ||
143 | enum CAPABILITY { | |
144 | NOLOGIN = 0, | |
145 | UIDPLUS, | |
146 | LITERALPLUS, | |
147 | NAMESPACE, | |
684ec6c6 | 148 | STARTTLS, |
4b05548f | 149 | AUTH_CRAM_MD5 |
f2561fda MM |
150 | }; |
151 | ||
152 | static const char *cap_list[] = { | |
153 | "LOGINDISABLED", | |
154 | "UIDPLUS", | |
155 | "LITERAL+", | |
156 | "NAMESPACE", | |
684ec6c6 | 157 | "STARTTLS", |
ae9c606e | 158 | "AUTH=CRAM-MD5", |
f2561fda MM |
159 | }; |
160 | ||
161 | #define RESP_OK 0 | |
162 | #define RESP_NO 1 | |
163 | #define RESP_BAD 2 | |
164 | ||
9f1ad541 | 165 | static int get_cmd_result(struct imap_store *ctx, struct imap_cmd *tcmd); |
f2561fda MM |
166 | |
167 | ||
684ec6c6 RS |
168 | #ifndef NO_OPENSSL |
169 | static void ssl_socket_perror(const char *func) | |
170 | { | |
2af202be | 171 | fprintf(stderr, "%s: %s\n", func, ERR_error_string(ERR_get_error(), NULL)); |
684ec6c6 RS |
172 | } |
173 | #endif | |
174 | ||
9f1ad541 | 175 | static void socket_perror(const char *func, struct imap_socket *sock, int ret) |
f2561fda | 176 | { |
684ec6c6 RS |
177 | #ifndef NO_OPENSSL |
178 | if (sock->ssl) { | |
179 | int sslerr = SSL_get_error(sock->ssl, ret); | |
180 | switch (sslerr) { | |
181 | case SSL_ERROR_NONE: | |
182 | break; | |
183 | case SSL_ERROR_SYSCALL: | |
184 | perror("SSL_connect"); | |
185 | break; | |
186 | default: | |
187 | ssl_socket_perror("SSL_connect"); | |
188 | break; | |
189 | } | |
190 | } else | |
191 | #endif | |
192 | { | |
193 | if (ret < 0) | |
194 | perror(func); | |
195 | else | |
196 | fprintf(stderr, "%s: unexpected EOF\n", func); | |
197 | } | |
198 | } | |
199 | ||
1e1fe529 | 200 | #ifdef NO_OPENSSL |
9f1ad541 | 201 | static int ssl_socket_connect(struct imap_socket *sock, int use_tls_only, int verify) |
684ec6c6 | 202 | { |
684ec6c6 RS |
203 | fprintf(stderr, "SSL requested but SSL support not compiled in\n"); |
204 | return -1; | |
1e1fe529 JH |
205 | } |
206 | ||
1e380ddc | 207 | #else |
1e1fe529 | 208 | |
b62fb077 OB |
209 | static int host_matches(const char *host, const char *pattern) |
210 | { | |
211 | if (pattern[0] == '*' && pattern[1] == '.') { | |
212 | pattern += 2; | |
213 | if (!(host = strchr(host, '.'))) | |
214 | return 0; | |
215 | host++; | |
216 | } | |
217 | ||
218 | return *host && *pattern && !strcasecmp(host, pattern); | |
219 | } | |
220 | ||
221 | static int verify_hostname(X509 *cert, const char *hostname) | |
222 | { | |
223 | int len; | |
224 | X509_NAME *subj; | |
225 | char cname[1000]; | |
e174744a OB |
226 | int i, found; |
227 | STACK_OF(GENERAL_NAME) *subj_alt_names; | |
228 | ||
229 | /* try the DNS subjectAltNames */ | |
230 | found = 0; | |
231 | if ((subj_alt_names = X509_get_ext_d2i(cert, NID_subject_alt_name, NULL, NULL))) { | |
232 | int num_subj_alt_names = sk_GENERAL_NAME_num(subj_alt_names); | |
233 | for (i = 0; !found && i < num_subj_alt_names; i++) { | |
234 | GENERAL_NAME *subj_alt_name = sk_GENERAL_NAME_value(subj_alt_names, i); | |
235 | if (subj_alt_name->type == GEN_DNS && | |
236 | strlen((const char *)subj_alt_name->d.ia5->data) == (size_t)subj_alt_name->d.ia5->length && | |
237 | host_matches(hostname, (const char *)(subj_alt_name->d.ia5->data))) | |
238 | found = 1; | |
239 | } | |
240 | sk_GENERAL_NAME_pop_free(subj_alt_names, GENERAL_NAME_free); | |
241 | } | |
242 | if (found) | |
243 | return 0; | |
b62fb077 OB |
244 | |
245 | /* try the common name */ | |
246 | if (!(subj = X509_get_subject_name(cert))) | |
247 | return error("cannot get certificate subject"); | |
248 | if ((len = X509_NAME_get_text_by_NID(subj, NID_commonName, cname, sizeof(cname))) < 0) | |
249 | return error("cannot get certificate common name"); | |
250 | if (strlen(cname) == (size_t)len && host_matches(hostname, cname)) | |
251 | return 0; | |
252 | return error("certificate owner '%s' does not match hostname '%s'", | |
253 | cname, hostname); | |
254 | } | |
255 | ||
1e1fe529 JH |
256 | static int ssl_socket_connect(struct imap_socket *sock, int use_tls_only, int verify) |
257 | { | |
1e380ddc VL |
258 | #if (OPENSSL_VERSION_NUMBER >= 0x10000000L) |
259 | const SSL_METHOD *meth; | |
684ec6c6 RS |
260 | #else |
261 | SSL_METHOD *meth; | |
1e380ddc | 262 | #endif |
684ec6c6 RS |
263 | SSL_CTX *ctx; |
264 | int ret; | |
b62fb077 | 265 | X509 *cert; |
684ec6c6 RS |
266 | |
267 | SSL_library_init(); | |
268 | SSL_load_error_strings(); | |
269 | ||
270 | if (use_tls_only) | |
271 | meth = TLSv1_method(); | |
f2561fda | 272 | else |
684ec6c6 RS |
273 | meth = SSLv23_method(); |
274 | ||
275 | if (!meth) { | |
276 | ssl_socket_perror("SSLv23_method"); | |
277 | return -1; | |
278 | } | |
279 | ||
280 | ctx = SSL_CTX_new(meth); | |
281 | ||
282 | if (verify) | |
283 | SSL_CTX_set_verify(ctx, SSL_VERIFY_PEER, NULL); | |
284 | ||
285 | if (!SSL_CTX_set_default_verify_paths(ctx)) { | |
286 | ssl_socket_perror("SSL_CTX_set_default_verify_paths"); | |
287 | return -1; | |
288 | } | |
289 | sock->ssl = SSL_new(ctx); | |
290 | if (!sock->ssl) { | |
291 | ssl_socket_perror("SSL_new"); | |
292 | return -1; | |
293 | } | |
7a7796e9 EFL |
294 | if (!SSL_set_rfd(sock->ssl, sock->fd[0])) { |
295 | ssl_socket_perror("SSL_set_rfd"); | |
296 | return -1; | |
297 | } | |
298 | if (!SSL_set_wfd(sock->ssl, sock->fd[1])) { | |
299 | ssl_socket_perror("SSL_set_wfd"); | |
684ec6c6 RS |
300 | return -1; |
301 | } | |
302 | ||
698a1ec4 JH |
303 | #ifdef SSL_CTRL_SET_TLSEXT_HOSTNAME |
304 | /* | |
305 | * SNI (RFC4366) | |
306 | * OpenSSL does not document this function, but the implementation | |
307 | * returns 1 on success, 0 on failure after calling SSLerr(). | |
308 | */ | |
309 | ret = SSL_set_tlsext_host_name(sock->ssl, server.host); | |
310 | if (ret != 1) | |
311 | warning("SSL_set_tlsext_host_name(%s) failed.", server.host); | |
312 | #endif | |
313 | ||
684ec6c6 RS |
314 | ret = SSL_connect(sock->ssl); |
315 | if (ret <= 0) { | |
316 | socket_perror("SSL_connect", sock, ret); | |
317 | return -1; | |
318 | } | |
319 | ||
b62fb077 OB |
320 | if (verify) { |
321 | /* make sure the hostname matches that of the certificate */ | |
322 | cert = SSL_get_peer_certificate(sock->ssl); | |
323 | if (!cert) | |
324 | return error("unable to get peer certificate."); | |
325 | if (verify_hostname(cert, server.host) < 0) | |
326 | return -1; | |
327 | } | |
328 | ||
684ec6c6 | 329 | return 0; |
f2561fda | 330 | } |
1e1fe529 | 331 | #endif |
f2561fda | 332 | |
9f1ad541 | 333 | static int socket_read(struct imap_socket *sock, char *buf, int len) |
f2561fda | 334 | { |
684ec6c6 RS |
335 | ssize_t n; |
336 | #ifndef NO_OPENSSL | |
337 | if (sock->ssl) | |
338 | n = SSL_read(sock->ssl, buf, len); | |
339 | else | |
340 | #endif | |
7a7796e9 | 341 | n = xread(sock->fd[0], buf, len); |
f2561fda | 342 | if (n <= 0) { |
95c53908 | 343 | socket_perror("read", sock, n); |
7a7796e9 EFL |
344 | close(sock->fd[0]); |
345 | close(sock->fd[1]); | |
346 | sock->fd[0] = sock->fd[1] = -1; | |
f2561fda MM |
347 | } |
348 | return n; | |
349 | } | |
350 | ||
9f1ad541 | 351 | static int socket_write(struct imap_socket *sock, const char *buf, int len) |
f2561fda | 352 | { |
684ec6c6 RS |
353 | int n; |
354 | #ifndef NO_OPENSSL | |
355 | if (sock->ssl) | |
356 | n = SSL_write(sock->ssl, buf, len); | |
357 | else | |
358 | #endif | |
7a7796e9 | 359 | n = write_in_full(sock->fd[1], buf, len); |
f2561fda | 360 | if (n != len) { |
95c53908 | 361 | socket_perror("write", sock, n); |
7a7796e9 EFL |
362 | close(sock->fd[0]); |
363 | close(sock->fd[1]); | |
364 | sock->fd[0] = sock->fd[1] = -1; | |
f2561fda MM |
365 | } |
366 | return n; | |
367 | } | |
368 | ||
9f1ad541 | 369 | static void socket_shutdown(struct imap_socket *sock) |
684ec6c6 RS |
370 | { |
371 | #ifndef NO_OPENSSL | |
372 | if (sock->ssl) { | |
373 | SSL_shutdown(sock->ssl); | |
374 | SSL_free(sock->ssl); | |
375 | } | |
376 | #endif | |
7a7796e9 EFL |
377 | close(sock->fd[0]); |
378 | close(sock->fd[1]); | |
684ec6c6 RS |
379 | } |
380 | ||
f2561fda | 381 | /* simple line buffering */ |
9f1ad541 | 382 | static int buffer_gets(struct imap_buffer *b, char **s) |
f2561fda MM |
383 | { |
384 | int n; | |
385 | int start = b->offset; | |
386 | ||
387 | *s = b->buf + start; | |
388 | ||
389 | for (;;) { | |
390 | /* make sure we have enough data to read the \r\n sequence */ | |
391 | if (b->offset + 1 >= b->bytes) { | |
392 | if (start) { | |
393 | /* shift down used bytes */ | |
394 | *s = b->buf; | |
395 | ||
95c53908 | 396 | assert(start <= b->bytes); |
f2561fda MM |
397 | n = b->bytes - start; |
398 | ||
399 | if (n) | |
173a9cbe | 400 | memmove(b->buf, b->buf + start, n); |
f2561fda MM |
401 | b->offset -= start; |
402 | b->bytes = n; | |
403 | start = 0; | |
404 | } | |
405 | ||
95c53908 RS |
406 | n = socket_read(&b->sock, b->buf + b->bytes, |
407 | sizeof(b->buf) - b->bytes); | |
f2561fda MM |
408 | |
409 | if (n <= 0) | |
410 | return -1; | |
411 | ||
412 | b->bytes += n; | |
413 | } | |
414 | ||
415 | if (b->buf[b->offset] == '\r') { | |
95c53908 | 416 | assert(b->offset + 1 < b->bytes); |
f2561fda MM |
417 | if (b->buf[b->offset + 1] == '\n') { |
418 | b->buf[b->offset] = 0; /* terminate the string */ | |
419 | b->offset += 2; /* next line */ | |
420 | if (Verbose) | |
95c53908 | 421 | puts(*s); |
f2561fda MM |
422 | return 0; |
423 | } | |
424 | } | |
425 | ||
426 | b->offset++; | |
427 | } | |
428 | /* not reached */ | |
429 | } | |
430 | ||
95c53908 | 431 | static void imap_info(const char *msg, ...) |
f2561fda MM |
432 | { |
433 | va_list va; | |
434 | ||
435 | if (!Quiet) { | |
95c53908 RS |
436 | va_start(va, msg); |
437 | vprintf(msg, va); | |
438 | va_end(va); | |
439 | fflush(stdout); | |
f2561fda MM |
440 | } |
441 | } | |
442 | ||
95c53908 | 443 | static void imap_warn(const char *msg, ...) |
f2561fda MM |
444 | { |
445 | va_list va; | |
446 | ||
447 | if (Quiet < 2) { | |
95c53908 RS |
448 | va_start(va, msg); |
449 | vfprintf(stderr, msg, va); | |
450 | va_end(va); | |
f2561fda MM |
451 | } |
452 | } | |
453 | ||
95c53908 | 454 | static char *next_arg(char **s) |
f2561fda MM |
455 | { |
456 | char *ret; | |
457 | ||
458 | if (!s || !*s) | |
5142db69 | 459 | return NULL; |
95c53908 | 460 | while (isspace((unsigned char) **s)) |
f2561fda MM |
461 | (*s)++; |
462 | if (!**s) { | |
5142db69 RS |
463 | *s = NULL; |
464 | return NULL; | |
f2561fda MM |
465 | } |
466 | if (**s == '"') { | |
467 | ++*s; | |
468 | ret = *s; | |
95c53908 | 469 | *s = strchr(*s, '"'); |
f2561fda MM |
470 | } else { |
471 | ret = *s; | |
95c53908 | 472 | while (**s && !isspace((unsigned char) **s)) |
f2561fda MM |
473 | (*s)++; |
474 | } | |
475 | if (*s) { | |
476 | if (**s) | |
477 | *(*s)++ = 0; | |
478 | if (!**s) | |
5142db69 | 479 | *s = NULL; |
f2561fda MM |
480 | } |
481 | return ret; | |
482 | } | |
483 | ||
95c53908 | 484 | static int nfsnprintf(char *buf, int blen, const char *fmt, ...) |
f2561fda MM |
485 | { |
486 | int ret; | |
487 | va_list va; | |
488 | ||
95c53908 RS |
489 | va_start(va, fmt); |
490 | if (blen <= 0 || (unsigned)(ret = vsnprintf(buf, blen, fmt, va)) >= (unsigned)blen) | |
d7530708 | 491 | die("Fatal: buffer too small. Please report a bug."); |
95c53908 | 492 | va_end(va); |
f2561fda MM |
493 | return ret; |
494 | } | |
495 | ||
9f1ad541 | 496 | static struct imap_cmd *v_issue_imap_cmd(struct imap_store *ctx, |
95c53908 RS |
497 | struct imap_cmd_cb *cb, |
498 | const char *fmt, va_list ap) | |
f2561fda | 499 | { |
9f1ad541 | 500 | struct imap *imap = ctx->imap; |
f2561fda MM |
501 | struct imap_cmd *cmd; |
502 | int n, bufl; | |
503 | char buf[1024]; | |
504 | ||
95c53908 RS |
505 | cmd = xmalloc(sizeof(struct imap_cmd)); |
506 | nfvasprintf(&cmd->cmd, fmt, ap); | |
f2561fda MM |
507 | cmd->tag = ++imap->nexttag; |
508 | ||
509 | if (cb) | |
510 | cmd->cb = *cb; | |
511 | else | |
95c53908 | 512 | memset(&cmd->cb, 0, sizeof(cmd->cb)); |
f2561fda MM |
513 | |
514 | while (imap->literal_pending) | |
95c53908 | 515 | get_cmd_result(ctx, NULL); |
f2561fda | 516 | |
1702b138 ÆAB |
517 | if (!cmd->cb.data) |
518 | bufl = nfsnprintf(buf, sizeof(buf), "%d %s\r\n", cmd->tag, cmd->cmd); | |
519 | else | |
520 | bufl = nfsnprintf(buf, sizeof(buf), "%d %s{%d%s}\r\n", | |
521 | cmd->tag, cmd->cmd, cmd->cb.dlen, | |
522 | CAP(LITERALPLUS) ? "+" : ""); | |
f2561fda | 523 | |
f2561fda MM |
524 | if (Verbose) { |
525 | if (imap->num_in_progress) | |
95c53908 RS |
526 | printf("(%d in progress) ", imap->num_in_progress); |
527 | if (memcmp(cmd->cmd, "LOGIN", 5)) | |
528 | printf(">>> %s", buf); | |
f2561fda | 529 | else |
95c53908 | 530 | printf(">>> %d LOGIN <user> <pass>\n", cmd->tag); |
f2561fda | 531 | } |
95c53908 RS |
532 | if (socket_write(&imap->buf.sock, buf, bufl) != bufl) { |
533 | free(cmd->cmd); | |
534 | free(cmd); | |
8e0f7003 | 535 | if (cb) |
95c53908 | 536 | free(cb->data); |
f2561fda MM |
537 | return NULL; |
538 | } | |
539 | if (cmd->cb.data) { | |
540 | if (CAP(LITERALPLUS)) { | |
95c53908 RS |
541 | n = socket_write(&imap->buf.sock, cmd->cb.data, cmd->cb.dlen); |
542 | free(cmd->cb.data); | |
f2561fda | 543 | if (n != cmd->cb.dlen || |
8e76bf3f | 544 | socket_write(&imap->buf.sock, "\r\n", 2) != 2) { |
95c53908 RS |
545 | free(cmd->cmd); |
546 | free(cmd); | |
f2561fda MM |
547 | return NULL; |
548 | } | |
5142db69 | 549 | cmd->cb.data = NULL; |
f2561fda MM |
550 | } else |
551 | imap->literal_pending = 1; | |
552 | } else if (cmd->cb.cont) | |
553 | imap->literal_pending = 1; | |
5142db69 | 554 | cmd->next = NULL; |
f2561fda MM |
555 | *imap->in_progress_append = cmd; |
556 | imap->in_progress_append = &cmd->next; | |
557 | imap->num_in_progress++; | |
558 | return cmd; | |
559 | } | |
560 | ||
28bea9e5 | 561 | __attribute__((format (printf, 3, 4))) |
9f1ad541 | 562 | static struct imap_cmd *issue_imap_cmd(struct imap_store *ctx, |
95c53908 RS |
563 | struct imap_cmd_cb *cb, |
564 | const char *fmt, ...) | |
f2561fda MM |
565 | { |
566 | struct imap_cmd *ret; | |
567 | va_list ap; | |
568 | ||
95c53908 RS |
569 | va_start(ap, fmt); |
570 | ret = v_issue_imap_cmd(ctx, cb, fmt, ap); | |
571 | va_end(ap); | |
f2561fda MM |
572 | return ret; |
573 | } | |
574 | ||
28bea9e5 | 575 | __attribute__((format (printf, 3, 4))) |
9f1ad541 | 576 | static int imap_exec(struct imap_store *ctx, struct imap_cmd_cb *cb, |
95c53908 | 577 | const char *fmt, ...) |
f2561fda MM |
578 | { |
579 | va_list ap; | |
580 | struct imap_cmd *cmdp; | |
581 | ||
95c53908 RS |
582 | va_start(ap, fmt); |
583 | cmdp = v_issue_imap_cmd(ctx, cb, fmt, ap); | |
584 | va_end(ap); | |
f2561fda MM |
585 | if (!cmdp) |
586 | return RESP_BAD; | |
587 | ||
95c53908 | 588 | return get_cmd_result(ctx, cmdp); |
f2561fda MM |
589 | } |
590 | ||
28bea9e5 | 591 | __attribute__((format (printf, 3, 4))) |
9f1ad541 | 592 | static int imap_exec_m(struct imap_store *ctx, struct imap_cmd_cb *cb, |
95c53908 | 593 | const char *fmt, ...) |
f2561fda MM |
594 | { |
595 | va_list ap; | |
596 | struct imap_cmd *cmdp; | |
597 | ||
95c53908 RS |
598 | va_start(ap, fmt); |
599 | cmdp = v_issue_imap_cmd(ctx, cb, fmt, ap); | |
600 | va_end(ap); | |
f2561fda MM |
601 | if (!cmdp) |
602 | return DRV_STORE_BAD; | |
603 | ||
95c53908 | 604 | switch (get_cmd_result(ctx, cmdp)) { |
f2561fda MM |
605 | case RESP_BAD: return DRV_STORE_BAD; |
606 | case RESP_NO: return DRV_MSG_BAD; | |
607 | default: return DRV_OK; | |
608 | } | |
609 | } | |
610 | ||
3648b4d9 | 611 | static int skip_imap_list_l(char **sp, int level) |
f2561fda | 612 | { |
3648b4d9 | 613 | char *s = *sp; |
f2561fda MM |
614 | |
615 | for (;;) { | |
95c53908 | 616 | while (isspace((unsigned char)*s)) |
f2561fda MM |
617 | s++; |
618 | if (level && *s == ')') { | |
619 | s++; | |
620 | break; | |
621 | } | |
f2561fda MM |
622 | if (*s == '(') { |
623 | /* sublist */ | |
624 | s++; | |
3648b4d9 | 625 | if (skip_imap_list_l(&s, level + 1)) |
f2561fda MM |
626 | goto bail; |
627 | } else if (*s == '"') { | |
628 | /* quoted string */ | |
629 | s++; | |
f2561fda MM |
630 | for (; *s != '"'; s++) |
631 | if (!*s) | |
632 | goto bail; | |
f2561fda | 633 | s++; |
f2561fda MM |
634 | } else { |
635 | /* atom */ | |
95c53908 | 636 | for (; *s && !isspace((unsigned char)*s); s++) |
f2561fda MM |
637 | if (level && *s == ')') |
638 | break; | |
f2561fda MM |
639 | } |
640 | ||
641 | if (!level) | |
642 | break; | |
643 | if (!*s) | |
644 | goto bail; | |
645 | } | |
646 | *sp = s; | |
f2561fda MM |
647 | return 0; |
648 | ||
9f1ad541 | 649 | bail: |
f2561fda MM |
650 | return -1; |
651 | } | |
652 | ||
3648b4d9 | 653 | static void skip_list(char **sp) |
f2561fda | 654 | { |
3648b4d9 | 655 | skip_imap_list_l(sp, 0); |
f2561fda MM |
656 | } |
657 | ||
9f1ad541 | 658 | static void parse_capability(struct imap *imap, char *cmd) |
f2561fda MM |
659 | { |
660 | char *arg; | |
661 | unsigned i; | |
662 | ||
663 | imap->caps = 0x80000000; | |
95c53908 | 664 | while ((arg = next_arg(&cmd))) |
f2561fda | 665 | for (i = 0; i < ARRAY_SIZE(cap_list); i++) |
95c53908 | 666 | if (!strcmp(cap_list[i], arg)) |
f2561fda MM |
667 | imap->caps |= 1 << i; |
668 | imap->rcaps = imap->caps; | |
669 | } | |
670 | ||
9f1ad541 | 671 | static int parse_response_code(struct imap_store *ctx, struct imap_cmd_cb *cb, |
95c53908 | 672 | char *s) |
f2561fda | 673 | { |
9f1ad541 | 674 | struct imap *imap = ctx->imap; |
f2561fda MM |
675 | char *arg, *p; |
676 | ||
677 | if (*s != '[') | |
678 | return RESP_OK; /* no response code */ | |
679 | s++; | |
95c53908 RS |
680 | if (!(p = strchr(s, ']'))) { |
681 | fprintf(stderr, "IMAP error: malformed response code\n"); | |
f2561fda MM |
682 | return RESP_BAD; |
683 | } | |
684 | *p++ = 0; | |
95c53908 RS |
685 | arg = next_arg(&s); |
686 | if (!strcmp("UIDVALIDITY", arg)) { | |
636fd66b | 687 | if (!(arg = next_arg(&s)) || !(ctx->uidvalidity = atoi(arg))) { |
95c53908 | 688 | fprintf(stderr, "IMAP error: malformed UIDVALIDITY status\n"); |
f2561fda MM |
689 | return RESP_BAD; |
690 | } | |
95c53908 RS |
691 | } else if (!strcmp("UIDNEXT", arg)) { |
692 | if (!(arg = next_arg(&s)) || !(imap->uidnext = atoi(arg))) { | |
693 | fprintf(stderr, "IMAP error: malformed NEXTUID status\n"); | |
f2561fda MM |
694 | return RESP_BAD; |
695 | } | |
95c53908 RS |
696 | } else if (!strcmp("CAPABILITY", arg)) { |
697 | parse_capability(imap, s); | |
698 | } else if (!strcmp("ALERT", arg)) { | |
f2561fda MM |
699 | /* RFC2060 says that these messages MUST be displayed |
700 | * to the user | |
701 | */ | |
95c53908 RS |
702 | for (; isspace((unsigned char)*p); p++); |
703 | fprintf(stderr, "*** IMAP ALERT *** %s\n", p); | |
704 | } else if (cb && cb->ctx && !strcmp("APPENDUID", arg)) { | |
636fd66b | 705 | if (!(arg = next_arg(&s)) || !(ctx->uidvalidity = atoi(arg)) || |
9f1ad541 | 706 | !(arg = next_arg(&s)) || !(*(int *)cb->ctx = atoi(arg))) { |
95c53908 | 707 | fprintf(stderr, "IMAP error: malformed APPENDUID status\n"); |
f2561fda MM |
708 | return RESP_BAD; |
709 | } | |
710 | } | |
711 | return RESP_OK; | |
712 | } | |
713 | ||
9f1ad541 | 714 | static int get_cmd_result(struct imap_store *ctx, struct imap_cmd *tcmd) |
f2561fda | 715 | { |
9f1ad541 | 716 | struct imap *imap = ctx->imap; |
f2561fda MM |
717 | struct imap_cmd *cmdp, **pcmdp, *ncmdp; |
718 | char *cmd, *arg, *arg1, *p; | |
719 | int n, resp, resp2, tag; | |
720 | ||
721 | for (;;) { | |
95c53908 | 722 | if (buffer_gets(&imap->buf, &cmd)) |
f2561fda MM |
723 | return RESP_BAD; |
724 | ||
95c53908 | 725 | arg = next_arg(&cmd); |
f2561fda | 726 | if (*arg == '*') { |
95c53908 | 727 | arg = next_arg(&cmd); |
f2561fda | 728 | if (!arg) { |
95c53908 | 729 | fprintf(stderr, "IMAP error: unable to parse untagged response\n"); |
f2561fda MM |
730 | return RESP_BAD; |
731 | } | |
732 | ||
95c53908 | 733 | if (!strcmp("NAMESPACE", arg)) { |
3648b4d9 MH |
734 | /* rfc2342 NAMESPACE response. */ |
735 | skip_list(&cmd); /* Personal mailboxes */ | |
736 | skip_list(&cmd); /* Others' mailboxes */ | |
737 | skip_list(&cmd); /* Shared mailboxes */ | |
95c53908 RS |
738 | } else if (!strcmp("OK", arg) || !strcmp("BAD", arg) || |
739 | !strcmp("NO", arg) || !strcmp("BYE", arg)) { | |
740 | if ((resp = parse_response_code(ctx, NULL, cmd)) != RESP_OK) | |
f2561fda | 741 | return resp; |
1efee7ff | 742 | } else if (!strcmp("CAPABILITY", arg)) { |
95c53908 | 743 | parse_capability(imap, cmd); |
1efee7ff MH |
744 | } else if ((arg1 = next_arg(&cmd))) { |
745 | ; /* | |
746 | * Unhandled response-data with at least two words. | |
747 | * Ignore it. | |
748 | * | |
749 | * NEEDSWORK: Previously this case handled '<num> EXISTS' | |
750 | * and '<num> RECENT' but as a probably-unintended side | |
751 | * effect it ignores other unrecognized two-word | |
752 | * responses. imap-send doesn't ever try to read | |
753 | * messages or mailboxes these days, so consider | |
754 | * eliminating this case. | |
755 | */ | |
f2561fda | 756 | } else { |
95c53908 | 757 | fprintf(stderr, "IMAP error: unable to parse untagged response\n"); |
f2561fda MM |
758 | return RESP_BAD; |
759 | } | |
760 | } else if (!imap->in_progress) { | |
95c53908 | 761 | fprintf(stderr, "IMAP error: unexpected reply: %s %s\n", arg, cmd ? cmd : ""); |
f2561fda MM |
762 | return RESP_BAD; |
763 | } else if (*arg == '+') { | |
764 | /* This can happen only with the last command underway, as | |
765 | it enforces a round-trip. */ | |
766 | cmdp = (struct imap_cmd *)((char *)imap->in_progress_append - | |
767 | offsetof(struct imap_cmd, next)); | |
768 | if (cmdp->cb.data) { | |
95c53908 RS |
769 | n = socket_write(&imap->buf.sock, cmdp->cb.data, cmdp->cb.dlen); |
770 | free(cmdp->cb.data); | |
5142db69 | 771 | cmdp->cb.data = NULL; |
f2561fda MM |
772 | if (n != (int)cmdp->cb.dlen) |
773 | return RESP_BAD; | |
774 | } else if (cmdp->cb.cont) { | |
95c53908 | 775 | if (cmdp->cb.cont(ctx, cmdp, cmd)) |
f2561fda MM |
776 | return RESP_BAD; |
777 | } else { | |
95c53908 | 778 | fprintf(stderr, "IMAP error: unexpected command continuation request\n"); |
f2561fda MM |
779 | return RESP_BAD; |
780 | } | |
95c53908 | 781 | if (socket_write(&imap->buf.sock, "\r\n", 2) != 2) |
f2561fda MM |
782 | return RESP_BAD; |
783 | if (!cmdp->cb.cont) | |
784 | imap->literal_pending = 0; | |
785 | if (!tcmd) | |
786 | return DRV_OK; | |
787 | } else { | |
95c53908 | 788 | tag = atoi(arg); |
f2561fda MM |
789 | for (pcmdp = &imap->in_progress; (cmdp = *pcmdp); pcmdp = &cmdp->next) |
790 | if (cmdp->tag == tag) | |
791 | goto gottag; | |
95c53908 | 792 | fprintf(stderr, "IMAP error: unexpected tag %s\n", arg); |
f2561fda | 793 | return RESP_BAD; |
9f1ad541 | 794 | gottag: |
f2561fda MM |
795 | if (!(*pcmdp = cmdp->next)) |
796 | imap->in_progress_append = pcmdp; | |
797 | imap->num_in_progress--; | |
798 | if (cmdp->cb.cont || cmdp->cb.data) | |
799 | imap->literal_pending = 0; | |
95c53908 RS |
800 | arg = next_arg(&cmd); |
801 | if (!strcmp("OK", arg)) | |
f2561fda MM |
802 | resp = DRV_OK; |
803 | else { | |
95c53908 RS |
804 | if (!strcmp("NO", arg)) { |
805 | if (cmdp->cb.create && cmd && (cmdp->cb.trycreate || !memcmp(cmd, "[TRYCREATE]", 11))) { /* SELECT, APPEND or UID COPY */ | |
806 | p = strchr(cmdp->cmd, '"'); | |
28bea9e5 | 807 | if (!issue_imap_cmd(ctx, NULL, "CREATE \"%.*s\"", (int)(strchr(p + 1, '"') - p + 1), p)) { |
f2561fda MM |
808 | resp = RESP_BAD; |
809 | goto normal; | |
810 | } | |
811 | /* not waiting here violates the spec, but a server that does not | |
812 | grok this nonetheless violates it too. */ | |
813 | cmdp->cb.create = 0; | |
95c53908 | 814 | if (!(ncmdp = issue_imap_cmd(ctx, &cmdp->cb, "%s", cmdp->cmd))) { |
f2561fda MM |
815 | resp = RESP_BAD; |
816 | goto normal; | |
817 | } | |
95c53908 RS |
818 | free(cmdp->cmd); |
819 | free(cmdp); | |
f2561fda MM |
820 | if (!tcmd) |
821 | return 0; /* ignored */ | |
822 | if (cmdp == tcmd) | |
823 | tcmd = ncmdp; | |
824 | continue; | |
825 | } | |
826 | resp = RESP_NO; | |
95c53908 | 827 | } else /*if (!strcmp("BAD", arg))*/ |
f2561fda | 828 | resp = RESP_BAD; |
95c53908 RS |
829 | fprintf(stderr, "IMAP command '%s' returned response (%s) - %s\n", |
830 | memcmp(cmdp->cmd, "LOGIN", 5) ? | |
f2561fda MM |
831 | cmdp->cmd : "LOGIN <user> <pass>", |
832 | arg, cmd ? cmd : ""); | |
833 | } | |
95c53908 | 834 | if ((resp2 = parse_response_code(ctx, &cmdp->cb, cmd)) > resp) |
f2561fda | 835 | resp = resp2; |
9f1ad541 | 836 | normal: |
f2561fda | 837 | if (cmdp->cb.done) |
95c53908 RS |
838 | cmdp->cb.done(ctx, cmdp, resp); |
839 | free(cmdp->cb.data); | |
840 | free(cmdp->cmd); | |
841 | free(cmdp); | |
f2561fda MM |
842 | if (!tcmd || tcmd == cmdp) |
843 | return resp; | |
844 | } | |
845 | } | |
846 | /* not reached */ | |
847 | } | |
848 | ||
9f1ad541 | 849 | static void imap_close_server(struct imap_store *ictx) |
f2561fda | 850 | { |
9f1ad541 | 851 | struct imap *imap = ictx->imap; |
f2561fda | 852 | |
7a7796e9 | 853 | if (imap->buf.sock.fd[0] != -1) { |
95c53908 RS |
854 | imap_exec(ictx, NULL, "LOGOUT"); |
855 | socket_shutdown(&imap->buf.sock); | |
f2561fda | 856 | } |
95c53908 | 857 | free(imap); |
f2561fda MM |
858 | } |
859 | ||
fe47e1df | 860 | static void imap_close_store(struct imap_store *ctx) |
f2561fda | 861 | { |
fe47e1df | 862 | imap_close_server(ctx); |
95c53908 | 863 | free(ctx); |
f2561fda MM |
864 | } |
865 | ||
ae9c606e HM |
866 | #ifndef NO_OPENSSL |
867 | ||
868 | /* | |
869 | * hexchar() and cram() functions are based on the code from the isync | |
870 | * project (http://isync.sf.net/). | |
871 | */ | |
872 | static char hexchar(unsigned int b) | |
f2561fda | 873 | { |
ae9c606e | 874 | return b < 10 ? '0' + b : 'a' + (b - 10); |
f2561fda MM |
875 | } |
876 | ||
ae9c606e HM |
877 | #define ENCODED_SIZE(n) (4*((n+2)/3)) |
878 | static char *cram(const char *challenge_64, const char *user, const char *pass) | |
f2561fda | 879 | { |
ae9c606e HM |
880 | int i, resp_len, encoded_len, decoded_len; |
881 | HMAC_CTX hmac; | |
882 | unsigned char hash[16]; | |
883 | char hex[33]; | |
884 | char *response, *response_64, *challenge; | |
885 | ||
886 | /* | |
887 | * length of challenge_64 (i.e. base-64 encoded string) is a good | |
888 | * enough upper bound for challenge (decoded result). | |
889 | */ | |
890 | encoded_len = strlen(challenge_64); | |
891 | challenge = xmalloc(encoded_len); | |
892 | decoded_len = EVP_DecodeBlock((unsigned char *)challenge, | |
893 | (unsigned char *)challenge_64, encoded_len); | |
894 | if (decoded_len < 0) | |
895 | die("invalid challenge %s", challenge_64); | |
896 | HMAC_Init(&hmac, (unsigned char *)pass, strlen(pass), EVP_md5()); | |
897 | HMAC_Update(&hmac, (unsigned char *)challenge, decoded_len); | |
898 | HMAC_Final(&hmac, hash, NULL); | |
899 | HMAC_CTX_cleanup(&hmac); | |
900 | ||
901 | hex[32] = 0; | |
902 | for (i = 0; i < 16; i++) { | |
903 | hex[2 * i] = hexchar((hash[i] >> 4) & 0xf); | |
904 | hex[2 * i + 1] = hexchar(hash[i] & 0xf); | |
905 | } | |
906 | ||
907 | /* response: "<user> <digest in hex>" */ | |
908 | resp_len = strlen(user) + 1 + strlen(hex) + 1; | |
909 | response = xmalloc(resp_len); | |
910 | sprintf(response, "%s %s", user, hex); | |
911 | ||
912 | response_64 = xmalloc(ENCODED_SIZE(resp_len) + 1); | |
913 | encoded_len = EVP_EncodeBlock((unsigned char *)response_64, | |
914 | (unsigned char *)response, resp_len); | |
915 | if (encoded_len < 0) | |
916 | die("EVP_EncodeBlock error"); | |
917 | response_64[encoded_len] = '\0'; | |
918 | return (char *)response_64; | |
919 | } | |
920 | ||
921 | #else | |
922 | ||
923 | static char *cram(const char *challenge_64, const char *user, const char *pass) | |
924 | { | |
925 | die("If you want to use CRAM-MD5 authenticate method, " | |
926 | "you have to build git-imap-send with OpenSSL library."); | |
927 | } | |
928 | ||
929 | #endif | |
930 | ||
931 | static int auth_cram_md5(struct imap_store *ctx, struct imap_cmd *cmd, const char *prompt) | |
932 | { | |
933 | int ret; | |
934 | char *response; | |
935 | ||
936 | response = cram(prompt, server.user, server.pass); | |
937 | ||
938 | ret = socket_write(&ctx->imap->buf.sock, response, strlen(response)); | |
939 | if (ret != strlen(response)) | |
82247e9b | 940 | return error("IMAP error: sending response failed"); |
ae9c606e HM |
941 | |
942 | free(response); | |
943 | ||
944 | return 0; | |
945 | } | |
946 | ||
fe47e1df | 947 | static struct imap_store *imap_open_store(struct imap_server_conf *srvc) |
f2561fda | 948 | { |
9f1ad541 JH |
949 | struct imap_store *ctx; |
950 | struct imap *imap; | |
f2561fda | 951 | char *arg, *rsp; |
c94d2dd0 | 952 | int s = -1, preauth; |
f2561fda | 953 | |
95c53908 | 954 | ctx = xcalloc(sizeof(*ctx), 1); |
f2561fda | 955 | |
95c53908 | 956 | ctx->imap = imap = xcalloc(sizeof(*imap), 1); |
7a7796e9 | 957 | imap->buf.sock.fd[0] = imap->buf.sock.fd[1] = -1; |
f2561fda MM |
958 | imap->in_progress_append = &imap->in_progress; |
959 | ||
960 | /* open connection to IMAP server */ | |
961 | ||
962 | if (srvc->tunnel) { | |
ac0ba18d | 963 | const char *argv[] = { srvc->tunnel, NULL }; |
c2e86add | 964 | struct child_process tunnel = {NULL}; |
f2561fda | 965 | |
c94d2dd0 | 966 | imap_info("Starting tunnel '%s'... ", srvc->tunnel); |
f2561fda | 967 | |
c94d2dd0 | 968 | tunnel.argv = argv; |
ac0ba18d | 969 | tunnel.use_shell = 1; |
c94d2dd0 EFL |
970 | tunnel.in = -1; |
971 | tunnel.out = -1; | |
972 | if (start_command(&tunnel)) | |
973 | die("cannot start proxy %s", argv[0]); | |
f2561fda | 974 | |
c94d2dd0 EFL |
975 | imap->buf.sock.fd[0] = tunnel.out; |
976 | imap->buf.sock.fd[1] = tunnel.in; | |
f2561fda | 977 | |
95c53908 | 978 | imap_info("ok\n"); |
f2561fda | 979 | } else { |
94ad2437 BK |
980 | #ifndef NO_IPV6 |
981 | struct addrinfo hints, *ai0, *ai; | |
982 | int gai; | |
983 | char portstr[6]; | |
984 | ||
1702b138 | 985 | snprintf(portstr, sizeof(portstr), "%d", srvc->port); |
94ad2437 BK |
986 | |
987 | memset(&hints, 0, sizeof(hints)); | |
988 | hints.ai_socktype = SOCK_STREAM; | |
989 | hints.ai_protocol = IPPROTO_TCP; | |
f2561fda | 990 | |
94ad2437 BK |
991 | imap_info("Resolving %s... ", srvc->host); |
992 | gai = getaddrinfo(srvc->host, portstr, &hints, &ai); | |
993 | if (gai) { | |
994 | fprintf(stderr, "getaddrinfo: %s\n", gai_strerror(gai)); | |
995 | goto bail; | |
f2561fda | 996 | } |
94ad2437 | 997 | imap_info("ok\n"); |
f2561fda | 998 | |
94ad2437 BK |
999 | for (ai0 = ai; ai; ai = ai->ai_next) { |
1000 | char addr[NI_MAXHOST]; | |
f2561fda | 1001 | |
94ad2437 BK |
1002 | s = socket(ai->ai_family, ai->ai_socktype, |
1003 | ai->ai_protocol); | |
1004 | if (s < 0) | |
1005 | continue; | |
f2561fda | 1006 | |
94ad2437 BK |
1007 | getnameinfo(ai->ai_addr, ai->ai_addrlen, addr, |
1008 | sizeof(addr), NULL, 0, NI_NUMERICHOST); | |
1009 | imap_info("Connecting to [%s]:%s... ", addr, portstr); | |
1010 | ||
1011 | if (connect(s, ai->ai_addr, ai->ai_addrlen) < 0) { | |
1012 | close(s); | |
1013 | s = -1; | |
1014 | perror("connect"); | |
1015 | continue; | |
1016 | } | |
1017 | ||
1018 | break; | |
1019 | } | |
1020 | freeaddrinfo(ai0); | |
1021 | #else /* NO_IPV6 */ | |
1022 | struct hostent *he; | |
1023 | struct sockaddr_in addr; | |
1024 | ||
95c53908 RS |
1025 | memset(&addr, 0, sizeof(addr)); |
1026 | addr.sin_port = htons(srvc->port); | |
f2561fda MM |
1027 | addr.sin_family = AF_INET; |
1028 | ||
95c53908 RS |
1029 | imap_info("Resolving %s... ", srvc->host); |
1030 | he = gethostbyname(srvc->host); | |
f2561fda | 1031 | if (!he) { |
95c53908 | 1032 | perror("gethostbyname"); |
f2561fda MM |
1033 | goto bail; |
1034 | } | |
95c53908 | 1035 | imap_info("ok\n"); |
f2561fda MM |
1036 | |
1037 | addr.sin_addr.s_addr = *((int *) he->h_addr_list[0]); | |
1038 | ||
95c53908 | 1039 | s = socket(PF_INET, SOCK_STREAM, 0); |
f2561fda | 1040 | |
95c53908 RS |
1041 | imap_info("Connecting to %s:%hu... ", inet_ntoa(addr.sin_addr), ntohs(addr.sin_port)); |
1042 | if (connect(s, (struct sockaddr *)&addr, sizeof(addr))) { | |
1043 | close(s); | |
94ad2437 | 1044 | s = -1; |
95c53908 | 1045 | perror("connect"); |
94ad2437 BK |
1046 | } |
1047 | #endif | |
1048 | if (s < 0) { | |
1049 | fputs("Error: unable to connect to server.\n", stderr); | |
f2561fda MM |
1050 | goto bail; |
1051 | } | |
f2561fda | 1052 | |
7a7796e9 EFL |
1053 | imap->buf.sock.fd[0] = s; |
1054 | imap->buf.sock.fd[1] = dup(s); | |
f2561fda | 1055 | |
684ec6c6 RS |
1056 | if (srvc->use_ssl && |
1057 | ssl_socket_connect(&imap->buf.sock, 0, srvc->ssl_verify)) { | |
1058 | close(s); | |
1059 | goto bail; | |
1060 | } | |
95c53908 | 1061 | imap_info("ok\n"); |
f2561fda MM |
1062 | } |
1063 | ||
1064 | /* read the greeting string */ | |
95c53908 RS |
1065 | if (buffer_gets(&imap->buf, &rsp)) { |
1066 | fprintf(stderr, "IMAP error: no greeting response\n"); | |
f2561fda MM |
1067 | goto bail; |
1068 | } | |
95c53908 RS |
1069 | arg = next_arg(&rsp); |
1070 | if (!arg || *arg != '*' || (arg = next_arg(&rsp)) == NULL) { | |
1071 | fprintf(stderr, "IMAP error: invalid greeting response\n"); | |
f2561fda MM |
1072 | goto bail; |
1073 | } | |
1074 | preauth = 0; | |
95c53908 | 1075 | if (!strcmp("PREAUTH", arg)) |
f2561fda | 1076 | preauth = 1; |
95c53908 RS |
1077 | else if (strcmp("OK", arg) != 0) { |
1078 | fprintf(stderr, "IMAP error: unknown greeting response\n"); | |
f2561fda MM |
1079 | goto bail; |
1080 | } | |
95c53908 RS |
1081 | parse_response_code(ctx, NULL, rsp); |
1082 | if (!imap->caps && imap_exec(ctx, NULL, "CAPABILITY") != RESP_OK) | |
f2561fda MM |
1083 | goto bail; |
1084 | ||
1085 | if (!preauth) { | |
684ec6c6 RS |
1086 | #ifndef NO_OPENSSL |
1087 | if (!srvc->use_ssl && CAP(STARTTLS)) { | |
d27da38a | 1088 | if (imap_exec(ctx, NULL, "STARTTLS") != RESP_OK) |
684ec6c6 RS |
1089 | goto bail; |
1090 | if (ssl_socket_connect(&imap->buf.sock, 1, | |
1091 | srvc->ssl_verify)) | |
1092 | goto bail; | |
1093 | /* capabilities may have changed, so get the new capabilities */ | |
d27da38a | 1094 | if (imap_exec(ctx, NULL, "CAPABILITY") != RESP_OK) |
684ec6c6 RS |
1095 | goto bail; |
1096 | } | |
1097 | #endif | |
95c53908 | 1098 | imap_info("Logging in...\n"); |
f2561fda | 1099 | if (!srvc->user) { |
95c53908 | 1100 | fprintf(stderr, "Skipping server %s, no user\n", srvc->host); |
f2561fda MM |
1101 | goto bail; |
1102 | } | |
1103 | if (!srvc->pass) { | |
50d0158f JK |
1104 | struct strbuf prompt = STRBUF_INIT; |
1105 | strbuf_addf(&prompt, "Password (%s@%s): ", srvc->user, srvc->host); | |
1106 | arg = git_getpass(prompt.buf); | |
1107 | strbuf_release(&prompt); | |
f2561fda | 1108 | if (!*arg) { |
95c53908 | 1109 | fprintf(stderr, "Skipping account %s@%s, no password\n", srvc->user, srvc->host); |
f2561fda MM |
1110 | goto bail; |
1111 | } | |
1112 | /* | |
1113 | * getpass() returns a pointer to a static buffer. make a copy | |
1114 | * for long term storage. | |
1115 | */ | |
95c53908 | 1116 | srvc->pass = xstrdup(arg); |
f2561fda MM |
1117 | } |
1118 | if (CAP(NOLOGIN)) { | |
95c53908 | 1119 | fprintf(stderr, "Skipping account %s@%s, server forbids LOGIN\n", srvc->user, srvc->host); |
f2561fda MM |
1120 | goto bail; |
1121 | } | |
ae9c606e HM |
1122 | |
1123 | if (srvc->auth_method) { | |
1124 | struct imap_cmd_cb cb; | |
1125 | ||
1126 | if (!strcmp(srvc->auth_method, "CRAM-MD5")) { | |
1127 | if (!CAP(AUTH_CRAM_MD5)) { | |
1128 | fprintf(stderr, "You specified" | |
1129 | "CRAM-MD5 as authentication method, " | |
1130 | "but %s doesn't support it.\n", srvc->host); | |
1131 | goto bail; | |
1132 | } | |
1133 | /* CRAM-MD5 */ | |
1134 | ||
1135 | memset(&cb, 0, sizeof(cb)); | |
1136 | cb.cont = auth_cram_md5; | |
1137 | if (imap_exec(ctx, &cb, "AUTHENTICATE CRAM-MD5") != RESP_OK) { | |
1138 | fprintf(stderr, "IMAP error: AUTHENTICATE CRAM-MD5 failed\n"); | |
1139 | goto bail; | |
1140 | } | |
1141 | } else { | |
1142 | fprintf(stderr, "Unknown authentication method:%s\n", srvc->host); | |
1143 | goto bail; | |
1144 | } | |
1145 | } else { | |
10439d89 CW |
1146 | if (!imap->buf.sock.ssl) |
1147 | imap_warn("*** IMAP Warning *** Password is being " | |
1148 | "sent in the clear\n"); | |
ae9c606e HM |
1149 | if (imap_exec(ctx, NULL, "LOGIN \"%s\" \"%s\"", srvc->user, srvc->pass) != RESP_OK) { |
1150 | fprintf(stderr, "IMAP error: LOGIN failed\n"); | |
1151 | goto bail; | |
1152 | } | |
f2561fda MM |
1153 | } |
1154 | } /* !preauth */ | |
1155 | ||
1156 | ctx->prefix = ""; | |
fe47e1df | 1157 | return ctx; |
f2561fda | 1158 | |
9f1ad541 | 1159 | bail: |
fe47e1df | 1160 | imap_close_store(ctx); |
5142db69 | 1161 | return NULL; |
f2561fda MM |
1162 | } |
1163 | ||
3691031c MH |
1164 | /* |
1165 | * Insert CR characters as necessary in *msg to ensure that every LF | |
1166 | * character in *msg is preceded by a CR. | |
1167 | */ | |
f035ab62 | 1168 | static void lf_to_crlf(struct strbuf *msg) |
f2561fda | 1169 | { |
67d17630 | 1170 | char *new; |
3691031c MH |
1171 | size_t i, j; |
1172 | char lastc; | |
1173 | ||
1174 | /* First pass: tally, in j, the size of the new string: */ | |
1175 | for (i = j = 0, lastc = '\0'; i < msg->len; i++) { | |
1176 | if (msg->buf[i] == '\n' && lastc != '\r') | |
1177 | j++; /* a CR will need to be added here */ | |
1178 | lastc = msg->buf[i]; | |
1179 | j++; | |
f2561fda | 1180 | } |
67d17630 | 1181 | |
3691031c MH |
1182 | new = xmalloc(j + 1); |
1183 | ||
1184 | /* | |
1185 | * Second pass: write the new string. Note that this loop is | |
1186 | * otherwise identical to the first pass. | |
1187 | */ | |
1188 | for (i = j = 0, lastc = '\0'; i < msg->len; i++) { | |
1189 | if (msg->buf[i] == '\n' && lastc != '\r') | |
67d17630 | 1190 | new[j++] = '\r'; |
3691031c | 1191 | lastc = new[j++] = msg->buf[i]; |
f2561fda | 1192 | } |
3691031c | 1193 | strbuf_attach(msg, new, j, j + 1); |
67d17630 | 1194 | } |
f2561fda | 1195 | |
f035ab62 MH |
1196 | /* |
1197 | * Store msg to IMAP. Also detach and free the data from msg->data, | |
1198 | * leaving msg->data empty. | |
1199 | */ | |
fe47e1df | 1200 | static int imap_store_msg(struct imap_store *ctx, struct strbuf *msg) |
f2561fda | 1201 | { |
9f1ad541 | 1202 | struct imap *imap = ctx->imap; |
f2561fda | 1203 | struct imap_cmd_cb cb; |
f2561fda | 1204 | const char *prefix, *box; |
719125c5 | 1205 | int ret; |
f2561fda | 1206 | |
cbc60761 | 1207 | lf_to_crlf(msg); |
95c53908 | 1208 | memset(&cb, 0, sizeof(cb)); |
f2561fda | 1209 | |
cbc60761 MH |
1210 | cb.dlen = msg->len; |
1211 | cb.data = strbuf_detach(msg, NULL); | |
f2561fda | 1212 | |
636fd66b | 1213 | box = ctx->name; |
3a7cba95 JK |
1214 | prefix = !strcmp(box, "INBOX") ? "" : ctx->prefix; |
1215 | cb.create = 0; | |
719125c5 | 1216 | ret = imap_exec_m(ctx, &cb, "APPEND \"%s%s\" ", prefix, box); |
f2561fda MM |
1217 | imap->caps = imap->rcaps; |
1218 | if (ret != DRV_OK) | |
1219 | return ret; | |
f2561fda MM |
1220 | |
1221 | return DRV_OK; | |
1222 | } | |
1223 | ||
f035ab62 | 1224 | static void wrap_in_html(struct strbuf *msg) |
c64d84f1 JW |
1225 | { |
1226 | struct strbuf buf = STRBUF_INIT; | |
c64d84f1 JW |
1227 | static char *content_type = "Content-Type: text/html;\n"; |
1228 | static char *pre_open = "<pre>\n"; | |
1229 | static char *pre_close = "</pre>\n"; | |
118a68f9 MH |
1230 | const char *body = strstr(msg->buf, "\n\n"); |
1231 | ||
1232 | if (!body) | |
1233 | return; /* Headers but no body; no wrapping needed */ | |
1234 | ||
1235 | body += 2; | |
1236 | ||
1237 | strbuf_add(&buf, msg->buf, body - msg->buf - 1); | |
1238 | strbuf_addstr(&buf, content_type); | |
1239 | strbuf_addch(&buf, '\n'); | |
1240 | strbuf_addstr(&buf, pre_open); | |
1241 | strbuf_addstr_xml_quoted(&buf, body); | |
c64d84f1 | 1242 | strbuf_addstr(&buf, pre_close); |
118a68f9 | 1243 | |
f035ab62 MH |
1244 | strbuf_release(msg); |
1245 | *msg = buf; | |
c64d84f1 JW |
1246 | } |
1247 | ||
f2561fda MM |
1248 | #define CHUNKSIZE 0x1000 |
1249 | ||
3a34e626 | 1250 | static int read_message(FILE *f, struct strbuf *all_msgs) |
f2561fda | 1251 | { |
635d043f | 1252 | do { |
3a34e626 | 1253 | if (strbuf_fread(all_msgs, CHUNKSIZE, f) <= 0) |
f2561fda | 1254 | break; |
635d043f PH |
1255 | } while (!feof(f)); |
1256 | ||
6360bee4 | 1257 | return ferror(f) ? -1 : 0; |
f2561fda MM |
1258 | } |
1259 | ||
3a34e626 | 1260 | static int count_messages(struct strbuf *all_msgs) |
f2561fda MM |
1261 | { |
1262 | int count = 0; | |
3a34e626 | 1263 | char *p = all_msgs->buf; |
f2561fda MM |
1264 | |
1265 | while (1) { | |
1968d77d | 1266 | if (!prefixcmp(p, "From ")) { |
4916c8f9 RR |
1267 | p = strstr(p+5, "\nFrom: "); |
1268 | if (!p) break; | |
1269 | p = strstr(p+7, "\nDate: "); | |
1270 | if (!p) break; | |
1271 | p = strstr(p+7, "\nSubject: "); | |
1272 | if (!p) break; | |
1273 | p += 10; | |
f2561fda | 1274 | count++; |
f2561fda | 1275 | } |
95c53908 | 1276 | p = strstr(p+5, "\nFrom "); |
f2561fda MM |
1277 | if (!p) |
1278 | break; | |
1279 | p++; | |
1280 | } | |
1281 | return count; | |
1282 | } | |
1283 | ||
f035ab62 MH |
1284 | /* |
1285 | * Copy the next message from all_msgs, starting at offset *ofs, to | |
1286 | * msg. Update *ofs to the start of the following message. Return | |
1287 | * true iff a message was successfully copied. | |
1288 | */ | |
1289 | static int split_msg(struct strbuf *all_msgs, struct strbuf *msg, int *ofs) | |
f2561fda MM |
1290 | { |
1291 | char *p, *data; | |
f035ab62 | 1292 | size_t len; |
f2561fda | 1293 | |
f2561fda MM |
1294 | if (*ofs >= all_msgs->len) |
1295 | return 0; | |
1296 | ||
3a34e626 | 1297 | data = &all_msgs->buf[*ofs]; |
f035ab62 | 1298 | len = all_msgs->len - *ofs; |
f2561fda | 1299 | |
f035ab62 | 1300 | if (len < 5 || prefixcmp(data, "From ")) |
f2561fda MM |
1301 | return 0; |
1302 | ||
95c53908 | 1303 | p = strchr(data, '\n'); |
e0b08307 | 1304 | if (p) { |
f035ab62 MH |
1305 | p++; |
1306 | len -= p - data; | |
1307 | *ofs += p - data; | |
e0b08307 MA |
1308 | data = p; |
1309 | } | |
1310 | ||
95c53908 | 1311 | p = strstr(data, "\nFrom "); |
f2561fda | 1312 | if (p) |
f035ab62 | 1313 | len = &p[1] - data; |
f2561fda | 1314 | |
f035ab62 MH |
1315 | strbuf_add(msg, data, len); |
1316 | *ofs += len; | |
a6080a0a | 1317 | return 1; |
f2561fda MM |
1318 | } |
1319 | ||
f2561fda MM |
1320 | static char *imap_folder; |
1321 | ||
95c53908 | 1322 | static int git_imap_config(const char *key, const char *val, void *cb) |
f2561fda MM |
1323 | { |
1324 | char imap_key[] = "imap."; | |
1325 | ||
95c53908 | 1326 | if (strncmp(key, imap_key, sizeof imap_key - 1)) |
f2561fda | 1327 | return 0; |
3c17c34a | 1328 | |
f2561fda MM |
1329 | key += sizeof imap_key - 1; |
1330 | ||
ace706e2 JH |
1331 | /* check booleans first, and barf on others */ |
1332 | if (!strcmp("sslverify", key)) | |
1333 | server.ssl_verify = git_config_bool(key, val); | |
1334 | else if (!strcmp("preformattedhtml", key)) | |
1335 | server.use_html = git_config_bool(key, val); | |
1336 | else if (!val) | |
1337 | return config_error_nonbool(key); | |
1338 | ||
95c53908 RS |
1339 | if (!strcmp("folder", key)) { |
1340 | imap_folder = xstrdup(val); | |
1341 | } else if (!strcmp("host", key)) { | |
684ec6c6 RS |
1342 | if (!prefixcmp(val, "imap:")) |
1343 | val += 5; | |
1344 | else if (!prefixcmp(val, "imaps:")) { | |
1345 | val += 6; | |
1346 | server.use_ssl = 1; | |
f2561fda | 1347 | } |
1968d77d | 1348 | if (!prefixcmp(val, "//")) |
f2561fda | 1349 | val += 2; |
95c53908 | 1350 | server.host = xstrdup(val); |
9f1ad541 | 1351 | } else if (!strcmp("user", key)) |
95c53908 RS |
1352 | server.user = xstrdup(val); |
1353 | else if (!strcmp("pass", key)) | |
1354 | server.pass = xstrdup(val); | |
1355 | else if (!strcmp("port", key)) | |
1356 | server.port = git_config_int(key, val); | |
1357 | else if (!strcmp("tunnel", key)) | |
1358 | server.tunnel = xstrdup(val); | |
ae9c606e HM |
1359 | else if (!strcmp("authmethod", key)) |
1360 | server.auth_method = xstrdup(val); | |
1361 | ||
f2561fda MM |
1362 | return 0; |
1363 | } | |
1364 | ||
95c53908 | 1365 | int main(int argc, char **argv) |
f2561fda | 1366 | { |
3a34e626 | 1367 | struct strbuf all_msgs = STRBUF_INIT; |
cbc60761 | 1368 | struct strbuf msg = STRBUF_INIT; |
fe47e1df | 1369 | struct imap_store *ctx = NULL; |
f2561fda MM |
1370 | int ofs = 0; |
1371 | int r; | |
1372 | int total, n = 0; | |
a0406b94 | 1373 | int nongit_ok; |
f2561fda | 1374 | |
2fb3f6db | 1375 | git_extract_argv0_path(argv[0]); |
f2561fda | 1376 | |
5e9637c6 ÆAB |
1377 | git_setup_gettext(); |
1378 | ||
9a2861e3 JN |
1379 | if (argc != 1) |
1380 | usage(imap_send_usage); | |
f2561fda | 1381 | |
a0406b94 | 1382 | setup_git_directory_gently(&nongit_ok); |
ef90d6d4 | 1383 | git_config(git_imap_config, NULL); |
f2561fda | 1384 | |
684ec6c6 RS |
1385 | if (!server.port) |
1386 | server.port = server.use_ssl ? 993 : 143; | |
f2561fda MM |
1387 | |
1388 | if (!imap_folder) { | |
95c53908 | 1389 | fprintf(stderr, "no imap store specified\n"); |
f2561fda MM |
1390 | return 1; |
1391 | } | |
5b67b8e2 | 1392 | if (!server.host) { |
34b5cd1f | 1393 | if (!server.tunnel) { |
95c53908 | 1394 | fprintf(stderr, "no imap host specified\n"); |
34b5cd1f JK |
1395 | return 1; |
1396 | } | |
1397 | server.host = "tunnel"; | |
5b67b8e2 | 1398 | } |
f2561fda MM |
1399 | |
1400 | /* read the messages */ | |
6360bee4 MH |
1401 | if (read_message(stdin, &all_msgs)) { |
1402 | fprintf(stderr, "error reading input\n"); | |
1403 | return 1; | |
1404 | } | |
1405 | ||
1406 | if (all_msgs.len == 0) { | |
9f1ad541 | 1407 | fprintf(stderr, "nothing to send\n"); |
f2561fda MM |
1408 | return 1; |
1409 | } | |
1410 | ||
95c53908 | 1411 | total = count_messages(&all_msgs); |
1cd88cc9 | 1412 | if (!total) { |
9f1ad541 | 1413 | fprintf(stderr, "no messages to send\n"); |
f2561fda MM |
1414 | return 1; |
1415 | } | |
1416 | ||
1417 | /* write it to the imap server */ | |
95c53908 | 1418 | ctx = imap_open_store(&server); |
f2561fda | 1419 | if (!ctx) { |
9f1ad541 | 1420 | fprintf(stderr, "failed to open store\n"); |
f2561fda MM |
1421 | return 1; |
1422 | } | |
1423 | ||
9f1ad541 | 1424 | fprintf(stderr, "sending %d message%s\n", total, (total != 1) ? "s" : ""); |
636fd66b | 1425 | ctx->name = imap_folder; |
f2561fda MM |
1426 | while (1) { |
1427 | unsigned percent = n * 100 / total; | |
f035ab62 | 1428 | |
95c53908 | 1429 | fprintf(stderr, "%4u%% (%d/%d) done\r", percent, n, total); |
cbc60761 | 1430 | if (!split_msg(&all_msgs, &msg, &ofs)) |
f2561fda | 1431 | break; |
c64d84f1 | 1432 | if (server.use_html) |
cbc60761 | 1433 | wrap_in_html(&msg); |
3a7cba95 | 1434 | r = imap_store_msg(ctx, &msg); |
9f1ad541 | 1435 | if (r != DRV_OK) |
f2561fda | 1436 | break; |
f2561fda MM |
1437 | n++; |
1438 | } | |
95c53908 | 1439 | fprintf(stderr, "\n"); |
f2561fda | 1440 | |
95c53908 | 1441 | imap_close_store(ctx); |
f2561fda MM |
1442 | |
1443 | return 0; | |
1444 | } |