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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" | |
791643a8 | 26 | #include "credential.h" |
2fb3f6db | 27 | #include "exec_cmd.h" |
c94d2dd0 | 28 | #include "run-command.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; | |
39180571 | 72 | char *folder; |
f2561fda MM |
73 | char *user; |
74 | char *pass; | |
684ec6c6 RS |
75 | int use_ssl; |
76 | int ssl_verify; | |
c64d84f1 | 77 | int use_html; |
ae9c606e HM |
78 | char *auth_method; |
79 | }; | |
80 | ||
81 | static struct imap_server_conf server = { | |
82 | NULL, /* name */ | |
83 | NULL, /* tunnel */ | |
84 | NULL, /* host */ | |
85 | 0, /* port */ | |
39180571 | 86 | NULL, /* folder */ |
ae9c606e HM |
87 | NULL, /* user */ |
88 | NULL, /* pass */ | |
89 | 0, /* use_ssl */ | |
90 | 1, /* ssl_verify */ | |
91 | 0, /* use_html */ | |
92 | NULL, /* auth_method */ | |
9f1ad541 | 93 | }; |
f2561fda | 94 | |
9f1ad541 | 95 | struct imap_socket { |
7a7796e9 | 96 | int fd[2]; |
684ec6c6 | 97 | SSL *ssl; |
9f1ad541 | 98 | }; |
f2561fda | 99 | |
9f1ad541 JH |
100 | struct imap_buffer { |
101 | struct imap_socket sock; | |
f2561fda MM |
102 | int bytes; |
103 | int offset; | |
104 | char buf[1024]; | |
9f1ad541 | 105 | }; |
f2561fda MM |
106 | |
107 | struct imap_cmd; | |
108 | ||
9f1ad541 | 109 | struct imap { |
f2561fda | 110 | int uidnext; /* from SELECT responses */ |
f2561fda MM |
111 | unsigned caps, rcaps; /* CAPABILITY results */ |
112 | /* command queue */ | |
113 | int nexttag, num_in_progress, literal_pending; | |
114 | struct imap_cmd *in_progress, **in_progress_append; | |
9f1ad541 JH |
115 | struct imap_buffer buf; /* this is BIG, so put it last */ |
116 | }; | |
f2561fda | 117 | |
9f1ad541 | 118 | struct imap_store { |
636fd66b MH |
119 | /* currently open mailbox */ |
120 | const char *name; /* foreign! maybe preset? */ | |
121 | int uidvalidity; | |
9f1ad541 | 122 | struct imap *imap; |
f2561fda | 123 | const char *prefix; |
9f1ad541 | 124 | }; |
f2561fda MM |
125 | |
126 | struct imap_cmd_cb { | |
9f1ad541 JH |
127 | int (*cont)(struct imap_store *ctx, struct imap_cmd *cmd, const char *prompt); |
128 | void (*done)(struct imap_store *ctx, struct imap_cmd *cmd, int response); | |
f2561fda MM |
129 | void *ctx; |
130 | char *data; | |
131 | int dlen; | |
132 | int uid; | |
f2561fda MM |
133 | }; |
134 | ||
135 | struct imap_cmd { | |
136 | struct imap_cmd *next; | |
137 | struct imap_cmd_cb cb; | |
138 | char *cmd; | |
139 | int tag; | |
140 | }; | |
141 | ||
142 | #define CAP(cap) (imap->caps & (1 << (cap))) | |
143 | ||
144 | enum CAPABILITY { | |
145 | NOLOGIN = 0, | |
146 | UIDPLUS, | |
147 | LITERALPLUS, | |
148 | NAMESPACE, | |
684ec6c6 | 149 | STARTTLS, |
4b05548f | 150 | AUTH_CRAM_MD5 |
f2561fda MM |
151 | }; |
152 | ||
153 | static const char *cap_list[] = { | |
154 | "LOGINDISABLED", | |
155 | "UIDPLUS", | |
156 | "LITERAL+", | |
157 | "NAMESPACE", | |
684ec6c6 | 158 | "STARTTLS", |
ae9c606e | 159 | "AUTH=CRAM-MD5", |
f2561fda MM |
160 | }; |
161 | ||
162 | #define RESP_OK 0 | |
163 | #define RESP_NO 1 | |
164 | #define RESP_BAD 2 | |
165 | ||
9f1ad541 | 166 | static int get_cmd_result(struct imap_store *ctx, struct imap_cmd *tcmd); |
f2561fda MM |
167 | |
168 | ||
684ec6c6 RS |
169 | #ifndef NO_OPENSSL |
170 | static void ssl_socket_perror(const char *func) | |
171 | { | |
2af202be | 172 | fprintf(stderr, "%s: %s\n", func, ERR_error_string(ERR_get_error(), NULL)); |
684ec6c6 RS |
173 | } |
174 | #endif | |
175 | ||
9f1ad541 | 176 | static void socket_perror(const char *func, struct imap_socket *sock, int ret) |
f2561fda | 177 | { |
684ec6c6 RS |
178 | #ifndef NO_OPENSSL |
179 | if (sock->ssl) { | |
180 | int sslerr = SSL_get_error(sock->ssl, ret); | |
181 | switch (sslerr) { | |
182 | case SSL_ERROR_NONE: | |
183 | break; | |
184 | case SSL_ERROR_SYSCALL: | |
185 | perror("SSL_connect"); | |
186 | break; | |
187 | default: | |
188 | ssl_socket_perror("SSL_connect"); | |
189 | break; | |
190 | } | |
191 | } else | |
192 | #endif | |
193 | { | |
194 | if (ret < 0) | |
195 | perror(func); | |
196 | else | |
197 | fprintf(stderr, "%s: unexpected EOF\n", func); | |
198 | } | |
199 | } | |
200 | ||
1e1fe529 | 201 | #ifdef NO_OPENSSL |
9f1ad541 | 202 | static int ssl_socket_connect(struct imap_socket *sock, int use_tls_only, int verify) |
684ec6c6 | 203 | { |
684ec6c6 RS |
204 | fprintf(stderr, "SSL requested but SSL support not compiled in\n"); |
205 | return -1; | |
1e1fe529 JH |
206 | } |
207 | ||
1e380ddc | 208 | #else |
1e1fe529 | 209 | |
b62fb077 OB |
210 | static int host_matches(const char *host, const char *pattern) |
211 | { | |
212 | if (pattern[0] == '*' && pattern[1] == '.') { | |
213 | pattern += 2; | |
214 | if (!(host = strchr(host, '.'))) | |
215 | return 0; | |
216 | host++; | |
217 | } | |
218 | ||
219 | return *host && *pattern && !strcasecmp(host, pattern); | |
220 | } | |
221 | ||
222 | static int verify_hostname(X509 *cert, const char *hostname) | |
223 | { | |
224 | int len; | |
225 | X509_NAME *subj; | |
226 | char cname[1000]; | |
e174744a OB |
227 | int i, found; |
228 | STACK_OF(GENERAL_NAME) *subj_alt_names; | |
229 | ||
230 | /* try the DNS subjectAltNames */ | |
231 | found = 0; | |
232 | if ((subj_alt_names = X509_get_ext_d2i(cert, NID_subject_alt_name, NULL, NULL))) { | |
233 | int num_subj_alt_names = sk_GENERAL_NAME_num(subj_alt_names); | |
234 | for (i = 0; !found && i < num_subj_alt_names; i++) { | |
235 | GENERAL_NAME *subj_alt_name = sk_GENERAL_NAME_value(subj_alt_names, i); | |
236 | if (subj_alt_name->type == GEN_DNS && | |
237 | strlen((const char *)subj_alt_name->d.ia5->data) == (size_t)subj_alt_name->d.ia5->length && | |
238 | host_matches(hostname, (const char *)(subj_alt_name->d.ia5->data))) | |
239 | found = 1; | |
240 | } | |
241 | sk_GENERAL_NAME_pop_free(subj_alt_names, GENERAL_NAME_free); | |
242 | } | |
243 | if (found) | |
244 | return 0; | |
b62fb077 OB |
245 | |
246 | /* try the common name */ | |
247 | if (!(subj = X509_get_subject_name(cert))) | |
248 | return error("cannot get certificate subject"); | |
249 | if ((len = X509_NAME_get_text_by_NID(subj, NID_commonName, cname, sizeof(cname))) < 0) | |
250 | return error("cannot get certificate common name"); | |
251 | if (strlen(cname) == (size_t)len && host_matches(hostname, cname)) | |
252 | return 0; | |
253 | return error("certificate owner '%s' does not match hostname '%s'", | |
254 | cname, hostname); | |
255 | } | |
256 | ||
1e1fe529 JH |
257 | static int ssl_socket_connect(struct imap_socket *sock, int use_tls_only, int verify) |
258 | { | |
1e380ddc VL |
259 | #if (OPENSSL_VERSION_NUMBER >= 0x10000000L) |
260 | const SSL_METHOD *meth; | |
684ec6c6 RS |
261 | #else |
262 | SSL_METHOD *meth; | |
1e380ddc | 263 | #endif |
684ec6c6 RS |
264 | SSL_CTX *ctx; |
265 | int ret; | |
b62fb077 | 266 | X509 *cert; |
684ec6c6 RS |
267 | |
268 | SSL_library_init(); | |
269 | SSL_load_error_strings(); | |
270 | ||
271 | if (use_tls_only) | |
272 | meth = TLSv1_method(); | |
f2561fda | 273 | else |
684ec6c6 RS |
274 | meth = SSLv23_method(); |
275 | ||
276 | if (!meth) { | |
277 | ssl_socket_perror("SSLv23_method"); | |
278 | return -1; | |
279 | } | |
280 | ||
281 | ctx = SSL_CTX_new(meth); | |
282 | ||
283 | if (verify) | |
284 | SSL_CTX_set_verify(ctx, SSL_VERIFY_PEER, NULL); | |
285 | ||
286 | if (!SSL_CTX_set_default_verify_paths(ctx)) { | |
287 | ssl_socket_perror("SSL_CTX_set_default_verify_paths"); | |
288 | return -1; | |
289 | } | |
290 | sock->ssl = SSL_new(ctx); | |
291 | if (!sock->ssl) { | |
292 | ssl_socket_perror("SSL_new"); | |
293 | return -1; | |
294 | } | |
7a7796e9 EFL |
295 | if (!SSL_set_rfd(sock->ssl, sock->fd[0])) { |
296 | ssl_socket_perror("SSL_set_rfd"); | |
297 | return -1; | |
298 | } | |
299 | if (!SSL_set_wfd(sock->ssl, sock->fd[1])) { | |
300 | ssl_socket_perror("SSL_set_wfd"); | |
684ec6c6 RS |
301 | return -1; |
302 | } | |
303 | ||
698a1ec4 JH |
304 | #ifdef SSL_CTRL_SET_TLSEXT_HOSTNAME |
305 | /* | |
306 | * SNI (RFC4366) | |
307 | * OpenSSL does not document this function, but the implementation | |
308 | * returns 1 on success, 0 on failure after calling SSLerr(). | |
309 | */ | |
310 | ret = SSL_set_tlsext_host_name(sock->ssl, server.host); | |
311 | if (ret != 1) | |
312 | warning("SSL_set_tlsext_host_name(%s) failed.", server.host); | |
313 | #endif | |
314 | ||
684ec6c6 RS |
315 | ret = SSL_connect(sock->ssl); |
316 | if (ret <= 0) { | |
317 | socket_perror("SSL_connect", sock, ret); | |
318 | return -1; | |
319 | } | |
320 | ||
b62fb077 OB |
321 | if (verify) { |
322 | /* make sure the hostname matches that of the certificate */ | |
323 | cert = SSL_get_peer_certificate(sock->ssl); | |
324 | if (!cert) | |
325 | return error("unable to get peer certificate."); | |
326 | if (verify_hostname(cert, server.host) < 0) | |
327 | return -1; | |
328 | } | |
329 | ||
684ec6c6 | 330 | return 0; |
f2561fda | 331 | } |
1e1fe529 | 332 | #endif |
f2561fda | 333 | |
9f1ad541 | 334 | static int socket_read(struct imap_socket *sock, char *buf, int len) |
f2561fda | 335 | { |
684ec6c6 RS |
336 | ssize_t n; |
337 | #ifndef NO_OPENSSL | |
338 | if (sock->ssl) | |
339 | n = SSL_read(sock->ssl, buf, len); | |
340 | else | |
341 | #endif | |
7a7796e9 | 342 | n = xread(sock->fd[0], buf, len); |
f2561fda | 343 | if (n <= 0) { |
95c53908 | 344 | socket_perror("read", sock, n); |
7a7796e9 EFL |
345 | close(sock->fd[0]); |
346 | close(sock->fd[1]); | |
347 | sock->fd[0] = sock->fd[1] = -1; | |
f2561fda MM |
348 | } |
349 | return n; | |
350 | } | |
351 | ||
9f1ad541 | 352 | static int socket_write(struct imap_socket *sock, const char *buf, int len) |
f2561fda | 353 | { |
684ec6c6 RS |
354 | int n; |
355 | #ifndef NO_OPENSSL | |
356 | if (sock->ssl) | |
357 | n = SSL_write(sock->ssl, buf, len); | |
358 | else | |
359 | #endif | |
7a7796e9 | 360 | n = write_in_full(sock->fd[1], buf, len); |
f2561fda | 361 | if (n != len) { |
95c53908 | 362 | socket_perror("write", sock, n); |
7a7796e9 EFL |
363 | close(sock->fd[0]); |
364 | close(sock->fd[1]); | |
365 | sock->fd[0] = sock->fd[1] = -1; | |
f2561fda MM |
366 | } |
367 | return n; | |
368 | } | |
369 | ||
9f1ad541 | 370 | static void socket_shutdown(struct imap_socket *sock) |
684ec6c6 RS |
371 | { |
372 | #ifndef NO_OPENSSL | |
373 | if (sock->ssl) { | |
374 | SSL_shutdown(sock->ssl); | |
375 | SSL_free(sock->ssl); | |
376 | } | |
377 | #endif | |
7a7796e9 EFL |
378 | close(sock->fd[0]); |
379 | close(sock->fd[1]); | |
684ec6c6 RS |
380 | } |
381 | ||
f2561fda | 382 | /* simple line buffering */ |
9f1ad541 | 383 | static int buffer_gets(struct imap_buffer *b, char **s) |
f2561fda MM |
384 | { |
385 | int n; | |
386 | int start = b->offset; | |
387 | ||
388 | *s = b->buf + start; | |
389 | ||
390 | for (;;) { | |
391 | /* make sure we have enough data to read the \r\n sequence */ | |
392 | if (b->offset + 1 >= b->bytes) { | |
393 | if (start) { | |
394 | /* shift down used bytes */ | |
395 | *s = b->buf; | |
396 | ||
95c53908 | 397 | assert(start <= b->bytes); |
f2561fda MM |
398 | n = b->bytes - start; |
399 | ||
400 | if (n) | |
173a9cbe | 401 | memmove(b->buf, b->buf + start, n); |
f2561fda MM |
402 | b->offset -= start; |
403 | b->bytes = n; | |
404 | start = 0; | |
405 | } | |
406 | ||
95c53908 RS |
407 | n = socket_read(&b->sock, b->buf + b->bytes, |
408 | sizeof(b->buf) - b->bytes); | |
f2561fda MM |
409 | |
410 | if (n <= 0) | |
411 | return -1; | |
412 | ||
413 | b->bytes += n; | |
414 | } | |
415 | ||
416 | if (b->buf[b->offset] == '\r') { | |
95c53908 | 417 | assert(b->offset + 1 < b->bytes); |
f2561fda MM |
418 | if (b->buf[b->offset + 1] == '\n') { |
419 | b->buf[b->offset] = 0; /* terminate the string */ | |
420 | b->offset += 2; /* next line */ | |
421 | if (Verbose) | |
95c53908 | 422 | puts(*s); |
f2561fda MM |
423 | return 0; |
424 | } | |
425 | } | |
426 | ||
427 | b->offset++; | |
428 | } | |
429 | /* not reached */ | |
430 | } | |
431 | ||
95c53908 | 432 | static void imap_info(const char *msg, ...) |
f2561fda MM |
433 | { |
434 | va_list va; | |
435 | ||
436 | if (!Quiet) { | |
95c53908 RS |
437 | va_start(va, msg); |
438 | vprintf(msg, va); | |
439 | va_end(va); | |
440 | fflush(stdout); | |
f2561fda MM |
441 | } |
442 | } | |
443 | ||
95c53908 | 444 | static void imap_warn(const char *msg, ...) |
f2561fda MM |
445 | { |
446 | va_list va; | |
447 | ||
448 | if (Quiet < 2) { | |
95c53908 RS |
449 | va_start(va, msg); |
450 | vfprintf(stderr, msg, va); | |
451 | va_end(va); | |
f2561fda MM |
452 | } |
453 | } | |
454 | ||
95c53908 | 455 | static char *next_arg(char **s) |
f2561fda MM |
456 | { |
457 | char *ret; | |
458 | ||
459 | if (!s || !*s) | |
5142db69 | 460 | return NULL; |
95c53908 | 461 | while (isspace((unsigned char) **s)) |
f2561fda MM |
462 | (*s)++; |
463 | if (!**s) { | |
5142db69 RS |
464 | *s = NULL; |
465 | return NULL; | |
f2561fda MM |
466 | } |
467 | if (**s == '"') { | |
468 | ++*s; | |
469 | ret = *s; | |
95c53908 | 470 | *s = strchr(*s, '"'); |
f2561fda MM |
471 | } else { |
472 | ret = *s; | |
95c53908 | 473 | while (**s && !isspace((unsigned char) **s)) |
f2561fda MM |
474 | (*s)++; |
475 | } | |
476 | if (*s) { | |
477 | if (**s) | |
478 | *(*s)++ = 0; | |
479 | if (!**s) | |
5142db69 | 480 | *s = NULL; |
f2561fda MM |
481 | } |
482 | return ret; | |
483 | } | |
484 | ||
95c53908 | 485 | static int nfsnprintf(char *buf, int blen, const char *fmt, ...) |
f2561fda MM |
486 | { |
487 | int ret; | |
488 | va_list va; | |
489 | ||
95c53908 RS |
490 | va_start(va, fmt); |
491 | if (blen <= 0 || (unsigned)(ret = vsnprintf(buf, blen, fmt, va)) >= (unsigned)blen) | |
d7530708 | 492 | die("Fatal: buffer too small. Please report a bug."); |
95c53908 | 493 | va_end(va); |
f2561fda MM |
494 | return ret; |
495 | } | |
496 | ||
e0d8e308 TF |
497 | static struct imap_cmd *issue_imap_cmd(struct imap_store *ctx, |
498 | struct imap_cmd_cb *cb, | |
499 | const char *fmt, va_list ap) | |
f2561fda | 500 | { |
9f1ad541 | 501 | struct imap *imap = ctx->imap; |
f2561fda MM |
502 | struct imap_cmd *cmd; |
503 | int n, bufl; | |
504 | char buf[1024]; | |
505 | ||
95c53908 RS |
506 | cmd = xmalloc(sizeof(struct imap_cmd)); |
507 | nfvasprintf(&cmd->cmd, fmt, ap); | |
f2561fda MM |
508 | cmd->tag = ++imap->nexttag; |
509 | ||
510 | if (cb) | |
511 | cmd->cb = *cb; | |
512 | else | |
95c53908 | 513 | memset(&cmd->cb, 0, sizeof(cmd->cb)); |
f2561fda MM |
514 | |
515 | while (imap->literal_pending) | |
95c53908 | 516 | get_cmd_result(ctx, NULL); |
f2561fda | 517 | |
1702b138 ÆAB |
518 | if (!cmd->cb.data) |
519 | bufl = nfsnprintf(buf, sizeof(buf), "%d %s\r\n", cmd->tag, cmd->cmd); | |
520 | else | |
521 | bufl = nfsnprintf(buf, sizeof(buf), "%d %s{%d%s}\r\n", | |
522 | cmd->tag, cmd->cmd, cmd->cb.dlen, | |
523 | CAP(LITERALPLUS) ? "+" : ""); | |
f2561fda | 524 | |
f2561fda MM |
525 | if (Verbose) { |
526 | if (imap->num_in_progress) | |
95c53908 | 527 | printf("(%d in progress) ", imap->num_in_progress); |
ba9b9e12 | 528 | if (!starts_with(cmd->cmd, "LOGIN")) |
95c53908 | 529 | printf(">>> %s", buf); |
f2561fda | 530 | else |
95c53908 | 531 | printf(">>> %d LOGIN <user> <pass>\n", cmd->tag); |
f2561fda | 532 | } |
95c53908 RS |
533 | if (socket_write(&imap->buf.sock, buf, bufl) != bufl) { |
534 | free(cmd->cmd); | |
535 | free(cmd); | |
8e0f7003 | 536 | if (cb) |
95c53908 | 537 | free(cb->data); |
f2561fda MM |
538 | return NULL; |
539 | } | |
540 | if (cmd->cb.data) { | |
541 | if (CAP(LITERALPLUS)) { | |
95c53908 RS |
542 | n = socket_write(&imap->buf.sock, cmd->cb.data, cmd->cb.dlen); |
543 | free(cmd->cb.data); | |
f2561fda | 544 | if (n != cmd->cb.dlen || |
8e76bf3f | 545 | socket_write(&imap->buf.sock, "\r\n", 2) != 2) { |
95c53908 RS |
546 | free(cmd->cmd); |
547 | free(cmd); | |
f2561fda MM |
548 | return NULL; |
549 | } | |
5142db69 | 550 | cmd->cb.data = NULL; |
f2561fda MM |
551 | } else |
552 | imap->literal_pending = 1; | |
553 | } else if (cmd->cb.cont) | |
554 | imap->literal_pending = 1; | |
5142db69 | 555 | cmd->next = NULL; |
f2561fda MM |
556 | *imap->in_progress_append = cmd; |
557 | imap->in_progress_append = &cmd->next; | |
558 | imap->num_in_progress++; | |
559 | return cmd; | |
560 | } | |
561 | ||
28bea9e5 | 562 | __attribute__((format (printf, 3, 4))) |
9f1ad541 | 563 | static int imap_exec(struct imap_store *ctx, struct imap_cmd_cb *cb, |
95c53908 | 564 | const char *fmt, ...) |
f2561fda MM |
565 | { |
566 | va_list ap; | |
567 | struct imap_cmd *cmdp; | |
568 | ||
95c53908 | 569 | va_start(ap, fmt); |
e0d8e308 | 570 | cmdp = issue_imap_cmd(ctx, cb, fmt, ap); |
95c53908 | 571 | va_end(ap); |
f2561fda MM |
572 | if (!cmdp) |
573 | return RESP_BAD; | |
574 | ||
95c53908 | 575 | return get_cmd_result(ctx, cmdp); |
f2561fda MM |
576 | } |
577 | ||
28bea9e5 | 578 | __attribute__((format (printf, 3, 4))) |
9f1ad541 | 579 | static int imap_exec_m(struct imap_store *ctx, struct imap_cmd_cb *cb, |
95c53908 | 580 | const char *fmt, ...) |
f2561fda MM |
581 | { |
582 | va_list ap; | |
583 | struct imap_cmd *cmdp; | |
584 | ||
95c53908 | 585 | va_start(ap, fmt); |
e0d8e308 | 586 | cmdp = issue_imap_cmd(ctx, cb, fmt, ap); |
95c53908 | 587 | va_end(ap); |
f2561fda MM |
588 | if (!cmdp) |
589 | return DRV_STORE_BAD; | |
590 | ||
95c53908 | 591 | switch (get_cmd_result(ctx, cmdp)) { |
f2561fda MM |
592 | case RESP_BAD: return DRV_STORE_BAD; |
593 | case RESP_NO: return DRV_MSG_BAD; | |
594 | default: return DRV_OK; | |
595 | } | |
596 | } | |
597 | ||
3648b4d9 | 598 | static int skip_imap_list_l(char **sp, int level) |
f2561fda | 599 | { |
3648b4d9 | 600 | char *s = *sp; |
f2561fda MM |
601 | |
602 | for (;;) { | |
95c53908 | 603 | while (isspace((unsigned char)*s)) |
f2561fda MM |
604 | s++; |
605 | if (level && *s == ')') { | |
606 | s++; | |
607 | break; | |
608 | } | |
f2561fda MM |
609 | if (*s == '(') { |
610 | /* sublist */ | |
611 | s++; | |
3648b4d9 | 612 | if (skip_imap_list_l(&s, level + 1)) |
f2561fda MM |
613 | goto bail; |
614 | } else if (*s == '"') { | |
615 | /* quoted string */ | |
616 | s++; | |
f2561fda MM |
617 | for (; *s != '"'; s++) |
618 | if (!*s) | |
619 | goto bail; | |
f2561fda | 620 | s++; |
f2561fda MM |
621 | } else { |
622 | /* atom */ | |
95c53908 | 623 | for (; *s && !isspace((unsigned char)*s); s++) |
f2561fda MM |
624 | if (level && *s == ')') |
625 | break; | |
f2561fda MM |
626 | } |
627 | ||
628 | if (!level) | |
629 | break; | |
630 | if (!*s) | |
631 | goto bail; | |
632 | } | |
633 | *sp = s; | |
f2561fda MM |
634 | return 0; |
635 | ||
9f1ad541 | 636 | bail: |
f2561fda MM |
637 | return -1; |
638 | } | |
639 | ||
3648b4d9 | 640 | static void skip_list(char **sp) |
f2561fda | 641 | { |
3648b4d9 | 642 | skip_imap_list_l(sp, 0); |
f2561fda MM |
643 | } |
644 | ||
9f1ad541 | 645 | static void parse_capability(struct imap *imap, char *cmd) |
f2561fda MM |
646 | { |
647 | char *arg; | |
648 | unsigned i; | |
649 | ||
650 | imap->caps = 0x80000000; | |
95c53908 | 651 | while ((arg = next_arg(&cmd))) |
f2561fda | 652 | for (i = 0; i < ARRAY_SIZE(cap_list); i++) |
95c53908 | 653 | if (!strcmp(cap_list[i], arg)) |
f2561fda MM |
654 | imap->caps |= 1 << i; |
655 | imap->rcaps = imap->caps; | |
656 | } | |
657 | ||
9f1ad541 | 658 | static int parse_response_code(struct imap_store *ctx, struct imap_cmd_cb *cb, |
95c53908 | 659 | char *s) |
f2561fda | 660 | { |
9f1ad541 | 661 | struct imap *imap = ctx->imap; |
f2561fda MM |
662 | char *arg, *p; |
663 | ||
664 | if (*s != '[') | |
665 | return RESP_OK; /* no response code */ | |
666 | s++; | |
95c53908 RS |
667 | if (!(p = strchr(s, ']'))) { |
668 | fprintf(stderr, "IMAP error: malformed response code\n"); | |
f2561fda MM |
669 | return RESP_BAD; |
670 | } | |
671 | *p++ = 0; | |
95c53908 RS |
672 | arg = next_arg(&s); |
673 | if (!strcmp("UIDVALIDITY", arg)) { | |
636fd66b | 674 | if (!(arg = next_arg(&s)) || !(ctx->uidvalidity = atoi(arg))) { |
95c53908 | 675 | fprintf(stderr, "IMAP error: malformed UIDVALIDITY status\n"); |
f2561fda MM |
676 | return RESP_BAD; |
677 | } | |
95c53908 RS |
678 | } else if (!strcmp("UIDNEXT", arg)) { |
679 | if (!(arg = next_arg(&s)) || !(imap->uidnext = atoi(arg))) { | |
680 | fprintf(stderr, "IMAP error: malformed NEXTUID status\n"); | |
f2561fda MM |
681 | return RESP_BAD; |
682 | } | |
95c53908 RS |
683 | } else if (!strcmp("CAPABILITY", arg)) { |
684 | parse_capability(imap, s); | |
685 | } else if (!strcmp("ALERT", arg)) { | |
f2561fda MM |
686 | /* RFC2060 says that these messages MUST be displayed |
687 | * to the user | |
688 | */ | |
95c53908 RS |
689 | for (; isspace((unsigned char)*p); p++); |
690 | fprintf(stderr, "*** IMAP ALERT *** %s\n", p); | |
691 | } else if (cb && cb->ctx && !strcmp("APPENDUID", arg)) { | |
636fd66b | 692 | if (!(arg = next_arg(&s)) || !(ctx->uidvalidity = atoi(arg)) || |
9f1ad541 | 693 | !(arg = next_arg(&s)) || !(*(int *)cb->ctx = atoi(arg))) { |
95c53908 | 694 | fprintf(stderr, "IMAP error: malformed APPENDUID status\n"); |
f2561fda MM |
695 | return RESP_BAD; |
696 | } | |
697 | } | |
698 | return RESP_OK; | |
699 | } | |
700 | ||
9f1ad541 | 701 | static int get_cmd_result(struct imap_store *ctx, struct imap_cmd *tcmd) |
f2561fda | 702 | { |
9f1ad541 | 703 | struct imap *imap = ctx->imap; |
e0d8e308 TF |
704 | struct imap_cmd *cmdp, **pcmdp; |
705 | char *cmd, *arg, *arg1; | |
f2561fda MM |
706 | int n, resp, resp2, tag; |
707 | ||
708 | for (;;) { | |
95c53908 | 709 | if (buffer_gets(&imap->buf, &cmd)) |
f2561fda MM |
710 | return RESP_BAD; |
711 | ||
95c53908 | 712 | arg = next_arg(&cmd); |
f2561fda | 713 | if (*arg == '*') { |
95c53908 | 714 | arg = next_arg(&cmd); |
f2561fda | 715 | if (!arg) { |
95c53908 | 716 | fprintf(stderr, "IMAP error: unable to parse untagged response\n"); |
f2561fda MM |
717 | return RESP_BAD; |
718 | } | |
719 | ||
95c53908 | 720 | if (!strcmp("NAMESPACE", arg)) { |
3648b4d9 MH |
721 | /* rfc2342 NAMESPACE response. */ |
722 | skip_list(&cmd); /* Personal mailboxes */ | |
723 | skip_list(&cmd); /* Others' mailboxes */ | |
724 | skip_list(&cmd); /* Shared mailboxes */ | |
95c53908 RS |
725 | } else if (!strcmp("OK", arg) || !strcmp("BAD", arg) || |
726 | !strcmp("NO", arg) || !strcmp("BYE", arg)) { | |
727 | if ((resp = parse_response_code(ctx, NULL, cmd)) != RESP_OK) | |
f2561fda | 728 | return resp; |
1efee7ff | 729 | } else if (!strcmp("CAPABILITY", arg)) { |
95c53908 | 730 | parse_capability(imap, cmd); |
1efee7ff MH |
731 | } else if ((arg1 = next_arg(&cmd))) { |
732 | ; /* | |
733 | * Unhandled response-data with at least two words. | |
734 | * Ignore it. | |
735 | * | |
736 | * NEEDSWORK: Previously this case handled '<num> EXISTS' | |
737 | * and '<num> RECENT' but as a probably-unintended side | |
738 | * effect it ignores other unrecognized two-word | |
739 | * responses. imap-send doesn't ever try to read | |
740 | * messages or mailboxes these days, so consider | |
741 | * eliminating this case. | |
742 | */ | |
f2561fda | 743 | } else { |
95c53908 | 744 | fprintf(stderr, "IMAP error: unable to parse untagged response\n"); |
f2561fda MM |
745 | return RESP_BAD; |
746 | } | |
747 | } else if (!imap->in_progress) { | |
95c53908 | 748 | fprintf(stderr, "IMAP error: unexpected reply: %s %s\n", arg, cmd ? cmd : ""); |
f2561fda MM |
749 | return RESP_BAD; |
750 | } else if (*arg == '+') { | |
751 | /* This can happen only with the last command underway, as | |
752 | it enforces a round-trip. */ | |
753 | cmdp = (struct imap_cmd *)((char *)imap->in_progress_append - | |
754 | offsetof(struct imap_cmd, next)); | |
755 | if (cmdp->cb.data) { | |
95c53908 RS |
756 | n = socket_write(&imap->buf.sock, cmdp->cb.data, cmdp->cb.dlen); |
757 | free(cmdp->cb.data); | |
5142db69 | 758 | cmdp->cb.data = NULL; |
f2561fda MM |
759 | if (n != (int)cmdp->cb.dlen) |
760 | return RESP_BAD; | |
761 | } else if (cmdp->cb.cont) { | |
95c53908 | 762 | if (cmdp->cb.cont(ctx, cmdp, cmd)) |
f2561fda MM |
763 | return RESP_BAD; |
764 | } else { | |
95c53908 | 765 | fprintf(stderr, "IMAP error: unexpected command continuation request\n"); |
f2561fda MM |
766 | return RESP_BAD; |
767 | } | |
95c53908 | 768 | if (socket_write(&imap->buf.sock, "\r\n", 2) != 2) |
f2561fda MM |
769 | return RESP_BAD; |
770 | if (!cmdp->cb.cont) | |
771 | imap->literal_pending = 0; | |
772 | if (!tcmd) | |
773 | return DRV_OK; | |
774 | } else { | |
95c53908 | 775 | tag = atoi(arg); |
f2561fda MM |
776 | for (pcmdp = &imap->in_progress; (cmdp = *pcmdp); pcmdp = &cmdp->next) |
777 | if (cmdp->tag == tag) | |
778 | goto gottag; | |
95c53908 | 779 | fprintf(stderr, "IMAP error: unexpected tag %s\n", arg); |
f2561fda | 780 | return RESP_BAD; |
9f1ad541 | 781 | gottag: |
f2561fda MM |
782 | if (!(*pcmdp = cmdp->next)) |
783 | imap->in_progress_append = pcmdp; | |
784 | imap->num_in_progress--; | |
785 | if (cmdp->cb.cont || cmdp->cb.data) | |
786 | imap->literal_pending = 0; | |
95c53908 RS |
787 | arg = next_arg(&cmd); |
788 | if (!strcmp("OK", arg)) | |
f2561fda MM |
789 | resp = DRV_OK; |
790 | else { | |
e0d8e308 | 791 | if (!strcmp("NO", arg)) |
f2561fda | 792 | resp = RESP_NO; |
e0d8e308 | 793 | else /*if (!strcmp("BAD", arg))*/ |
f2561fda | 794 | resp = RESP_BAD; |
95c53908 | 795 | fprintf(stderr, "IMAP command '%s' returned response (%s) - %s\n", |
ba9b9e12 | 796 | !starts_with(cmdp->cmd, "LOGIN") ? |
f2561fda MM |
797 | cmdp->cmd : "LOGIN <user> <pass>", |
798 | arg, cmd ? cmd : ""); | |
799 | } | |
95c53908 | 800 | if ((resp2 = parse_response_code(ctx, &cmdp->cb, cmd)) > resp) |
f2561fda | 801 | resp = resp2; |
f2561fda | 802 | if (cmdp->cb.done) |
95c53908 RS |
803 | cmdp->cb.done(ctx, cmdp, resp); |
804 | free(cmdp->cb.data); | |
805 | free(cmdp->cmd); | |
806 | free(cmdp); | |
f2561fda MM |
807 | if (!tcmd || tcmd == cmdp) |
808 | return resp; | |
809 | } | |
810 | } | |
811 | /* not reached */ | |
812 | } | |
813 | ||
9f1ad541 | 814 | static void imap_close_server(struct imap_store *ictx) |
f2561fda | 815 | { |
9f1ad541 | 816 | struct imap *imap = ictx->imap; |
f2561fda | 817 | |
7a7796e9 | 818 | if (imap->buf.sock.fd[0] != -1) { |
95c53908 RS |
819 | imap_exec(ictx, NULL, "LOGOUT"); |
820 | socket_shutdown(&imap->buf.sock); | |
f2561fda | 821 | } |
95c53908 | 822 | free(imap); |
f2561fda MM |
823 | } |
824 | ||
fe47e1df | 825 | static void imap_close_store(struct imap_store *ctx) |
f2561fda | 826 | { |
fe47e1df | 827 | imap_close_server(ctx); |
95c53908 | 828 | free(ctx); |
f2561fda MM |
829 | } |
830 | ||
ae9c606e HM |
831 | #ifndef NO_OPENSSL |
832 | ||
833 | /* | |
834 | * hexchar() and cram() functions are based on the code from the isync | |
835 | * project (http://isync.sf.net/). | |
836 | */ | |
837 | static char hexchar(unsigned int b) | |
f2561fda | 838 | { |
ae9c606e | 839 | return b < 10 ? '0' + b : 'a' + (b - 10); |
f2561fda MM |
840 | } |
841 | ||
ae9c606e HM |
842 | #define ENCODED_SIZE(n) (4*((n+2)/3)) |
843 | static char *cram(const char *challenge_64, const char *user, const char *pass) | |
f2561fda | 844 | { |
ae9c606e HM |
845 | int i, resp_len, encoded_len, decoded_len; |
846 | HMAC_CTX hmac; | |
847 | unsigned char hash[16]; | |
848 | char hex[33]; | |
849 | char *response, *response_64, *challenge; | |
850 | ||
851 | /* | |
852 | * length of challenge_64 (i.e. base-64 encoded string) is a good | |
853 | * enough upper bound for challenge (decoded result). | |
854 | */ | |
855 | encoded_len = strlen(challenge_64); | |
856 | challenge = xmalloc(encoded_len); | |
857 | decoded_len = EVP_DecodeBlock((unsigned char *)challenge, | |
858 | (unsigned char *)challenge_64, encoded_len); | |
859 | if (decoded_len < 0) | |
860 | die("invalid challenge %s", challenge_64); | |
861 | HMAC_Init(&hmac, (unsigned char *)pass, strlen(pass), EVP_md5()); | |
862 | HMAC_Update(&hmac, (unsigned char *)challenge, decoded_len); | |
863 | HMAC_Final(&hmac, hash, NULL); | |
864 | HMAC_CTX_cleanup(&hmac); | |
865 | ||
866 | hex[32] = 0; | |
867 | for (i = 0; i < 16; i++) { | |
868 | hex[2 * i] = hexchar((hash[i] >> 4) & 0xf); | |
869 | hex[2 * i + 1] = hexchar(hash[i] & 0xf); | |
870 | } | |
871 | ||
872 | /* response: "<user> <digest in hex>" */ | |
873 | resp_len = strlen(user) + 1 + strlen(hex) + 1; | |
874 | response = xmalloc(resp_len); | |
875 | sprintf(response, "%s %s", user, hex); | |
876 | ||
877 | response_64 = xmalloc(ENCODED_SIZE(resp_len) + 1); | |
878 | encoded_len = EVP_EncodeBlock((unsigned char *)response_64, | |
879 | (unsigned char *)response, resp_len); | |
880 | if (encoded_len < 0) | |
881 | die("EVP_EncodeBlock error"); | |
882 | response_64[encoded_len] = '\0'; | |
883 | return (char *)response_64; | |
884 | } | |
885 | ||
886 | #else | |
887 | ||
888 | static char *cram(const char *challenge_64, const char *user, const char *pass) | |
889 | { | |
890 | die("If you want to use CRAM-MD5 authenticate method, " | |
891 | "you have to build git-imap-send with OpenSSL library."); | |
892 | } | |
893 | ||
894 | #endif | |
895 | ||
896 | static int auth_cram_md5(struct imap_store *ctx, struct imap_cmd *cmd, const char *prompt) | |
897 | { | |
898 | int ret; | |
899 | char *response; | |
900 | ||
901 | response = cram(prompt, server.user, server.pass); | |
902 | ||
903 | ret = socket_write(&ctx->imap->buf.sock, response, strlen(response)); | |
904 | if (ret != strlen(response)) | |
82247e9b | 905 | return error("IMAP error: sending response failed"); |
ae9c606e HM |
906 | |
907 | free(response); | |
908 | ||
909 | return 0; | |
910 | } | |
911 | ||
e0d8e308 | 912 | static struct imap_store *imap_open_store(struct imap_server_conf *srvc, char *folder) |
f2561fda | 913 | { |
791643a8 | 914 | struct credential cred = CREDENTIAL_INIT; |
9f1ad541 JH |
915 | struct imap_store *ctx; |
916 | struct imap *imap; | |
f2561fda | 917 | char *arg, *rsp; |
c94d2dd0 | 918 | int s = -1, preauth; |
f2561fda | 919 | |
3345c0f5 | 920 | ctx = xcalloc(1, sizeof(*ctx)); |
f2561fda | 921 | |
693eb02a | 922 | ctx->imap = imap = xcalloc(1, sizeof(*imap)); |
7a7796e9 | 923 | imap->buf.sock.fd[0] = imap->buf.sock.fd[1] = -1; |
f2561fda MM |
924 | imap->in_progress_append = &imap->in_progress; |
925 | ||
926 | /* open connection to IMAP server */ | |
927 | ||
928 | if (srvc->tunnel) { | |
d3180279 | 929 | struct child_process tunnel = CHILD_PROCESS_INIT; |
f2561fda | 930 | |
c94d2dd0 | 931 | imap_info("Starting tunnel '%s'... ", srvc->tunnel); |
f2561fda | 932 | |
f9dc5d65 | 933 | argv_array_push(&tunnel.args, srvc->tunnel); |
ac0ba18d | 934 | tunnel.use_shell = 1; |
c94d2dd0 EFL |
935 | tunnel.in = -1; |
936 | tunnel.out = -1; | |
937 | if (start_command(&tunnel)) | |
f9dc5d65 | 938 | die("cannot start proxy %s", srvc->tunnel); |
f2561fda | 939 | |
c94d2dd0 EFL |
940 | imap->buf.sock.fd[0] = tunnel.out; |
941 | imap->buf.sock.fd[1] = tunnel.in; | |
f2561fda | 942 | |
95c53908 | 943 | imap_info("ok\n"); |
f2561fda | 944 | } else { |
94ad2437 BK |
945 | #ifndef NO_IPV6 |
946 | struct addrinfo hints, *ai0, *ai; | |
947 | int gai; | |
948 | char portstr[6]; | |
949 | ||
1702b138 | 950 | snprintf(portstr, sizeof(portstr), "%d", srvc->port); |
94ad2437 BK |
951 | |
952 | memset(&hints, 0, sizeof(hints)); | |
953 | hints.ai_socktype = SOCK_STREAM; | |
954 | hints.ai_protocol = IPPROTO_TCP; | |
f2561fda | 955 | |
94ad2437 BK |
956 | imap_info("Resolving %s... ", srvc->host); |
957 | gai = getaddrinfo(srvc->host, portstr, &hints, &ai); | |
958 | if (gai) { | |
959 | fprintf(stderr, "getaddrinfo: %s\n", gai_strerror(gai)); | |
960 | goto bail; | |
f2561fda | 961 | } |
94ad2437 | 962 | imap_info("ok\n"); |
f2561fda | 963 | |
94ad2437 BK |
964 | for (ai0 = ai; ai; ai = ai->ai_next) { |
965 | char addr[NI_MAXHOST]; | |
f2561fda | 966 | |
94ad2437 BK |
967 | s = socket(ai->ai_family, ai->ai_socktype, |
968 | ai->ai_protocol); | |
969 | if (s < 0) | |
970 | continue; | |
f2561fda | 971 | |
94ad2437 BK |
972 | getnameinfo(ai->ai_addr, ai->ai_addrlen, addr, |
973 | sizeof(addr), NULL, 0, NI_NUMERICHOST); | |
974 | imap_info("Connecting to [%s]:%s... ", addr, portstr); | |
975 | ||
976 | if (connect(s, ai->ai_addr, ai->ai_addrlen) < 0) { | |
977 | close(s); | |
978 | s = -1; | |
979 | perror("connect"); | |
980 | continue; | |
981 | } | |
982 | ||
983 | break; | |
984 | } | |
985 | freeaddrinfo(ai0); | |
986 | #else /* NO_IPV6 */ | |
987 | struct hostent *he; | |
988 | struct sockaddr_in addr; | |
989 | ||
95c53908 RS |
990 | memset(&addr, 0, sizeof(addr)); |
991 | addr.sin_port = htons(srvc->port); | |
f2561fda MM |
992 | addr.sin_family = AF_INET; |
993 | ||
95c53908 RS |
994 | imap_info("Resolving %s... ", srvc->host); |
995 | he = gethostbyname(srvc->host); | |
f2561fda | 996 | if (!he) { |
95c53908 | 997 | perror("gethostbyname"); |
f2561fda MM |
998 | goto bail; |
999 | } | |
95c53908 | 1000 | imap_info("ok\n"); |
f2561fda MM |
1001 | |
1002 | addr.sin_addr.s_addr = *((int *) he->h_addr_list[0]); | |
1003 | ||
95c53908 | 1004 | s = socket(PF_INET, SOCK_STREAM, 0); |
f2561fda | 1005 | |
95c53908 RS |
1006 | imap_info("Connecting to %s:%hu... ", inet_ntoa(addr.sin_addr), ntohs(addr.sin_port)); |
1007 | if (connect(s, (struct sockaddr *)&addr, sizeof(addr))) { | |
1008 | close(s); | |
94ad2437 | 1009 | s = -1; |
95c53908 | 1010 | perror("connect"); |
94ad2437 BK |
1011 | } |
1012 | #endif | |
1013 | if (s < 0) { | |
1014 | fputs("Error: unable to connect to server.\n", stderr); | |
f2561fda MM |
1015 | goto bail; |
1016 | } | |
f2561fda | 1017 | |
7a7796e9 EFL |
1018 | imap->buf.sock.fd[0] = s; |
1019 | imap->buf.sock.fd[1] = dup(s); | |
f2561fda | 1020 | |
684ec6c6 RS |
1021 | if (srvc->use_ssl && |
1022 | ssl_socket_connect(&imap->buf.sock, 0, srvc->ssl_verify)) { | |
1023 | close(s); | |
1024 | goto bail; | |
1025 | } | |
95c53908 | 1026 | imap_info("ok\n"); |
f2561fda MM |
1027 | } |
1028 | ||
1029 | /* read the greeting string */ | |
95c53908 RS |
1030 | if (buffer_gets(&imap->buf, &rsp)) { |
1031 | fprintf(stderr, "IMAP error: no greeting response\n"); | |
f2561fda MM |
1032 | goto bail; |
1033 | } | |
95c53908 RS |
1034 | arg = next_arg(&rsp); |
1035 | if (!arg || *arg != '*' || (arg = next_arg(&rsp)) == NULL) { | |
1036 | fprintf(stderr, "IMAP error: invalid greeting response\n"); | |
f2561fda MM |
1037 | goto bail; |
1038 | } | |
1039 | preauth = 0; | |
95c53908 | 1040 | if (!strcmp("PREAUTH", arg)) |
f2561fda | 1041 | preauth = 1; |
95c53908 RS |
1042 | else if (strcmp("OK", arg) != 0) { |
1043 | fprintf(stderr, "IMAP error: unknown greeting response\n"); | |
f2561fda MM |
1044 | goto bail; |
1045 | } | |
95c53908 RS |
1046 | parse_response_code(ctx, NULL, rsp); |
1047 | if (!imap->caps && imap_exec(ctx, NULL, "CAPABILITY") != RESP_OK) | |
f2561fda MM |
1048 | goto bail; |
1049 | ||
1050 | if (!preauth) { | |
684ec6c6 RS |
1051 | #ifndef NO_OPENSSL |
1052 | if (!srvc->use_ssl && CAP(STARTTLS)) { | |
d27da38a | 1053 | if (imap_exec(ctx, NULL, "STARTTLS") != RESP_OK) |
684ec6c6 RS |
1054 | goto bail; |
1055 | if (ssl_socket_connect(&imap->buf.sock, 1, | |
1056 | srvc->ssl_verify)) | |
1057 | goto bail; | |
1058 | /* capabilities may have changed, so get the new capabilities */ | |
d27da38a | 1059 | if (imap_exec(ctx, NULL, "CAPABILITY") != RESP_OK) |
684ec6c6 RS |
1060 | goto bail; |
1061 | } | |
1062 | #endif | |
95c53908 | 1063 | imap_info("Logging in...\n"); |
791643a8 DA |
1064 | if (!srvc->user || !srvc->pass) { |
1065 | cred.protocol = xstrdup(srvc->use_ssl ? "imaps" : "imap"); | |
1066 | cred.host = xstrdup(srvc->host); | |
1067 | ||
1068 | if (srvc->user) | |
1069 | cred.username = xstrdup(srvc->user); | |
1070 | if (srvc->pass) | |
1071 | cred.password = xstrdup(srvc->pass); | |
1072 | ||
1073 | credential_fill(&cred); | |
1074 | ||
1075 | if (!srvc->user) | |
1076 | srvc->user = xstrdup(cred.username); | |
1077 | if (!srvc->pass) | |
1078 | srvc->pass = xstrdup(cred.password); | |
f2561fda | 1079 | } |
791643a8 | 1080 | |
f2561fda | 1081 | if (CAP(NOLOGIN)) { |
95c53908 | 1082 | fprintf(stderr, "Skipping account %s@%s, server forbids LOGIN\n", srvc->user, srvc->host); |
f2561fda MM |
1083 | goto bail; |
1084 | } | |
ae9c606e HM |
1085 | |
1086 | if (srvc->auth_method) { | |
1087 | struct imap_cmd_cb cb; | |
1088 | ||
1089 | if (!strcmp(srvc->auth_method, "CRAM-MD5")) { | |
1090 | if (!CAP(AUTH_CRAM_MD5)) { | |
1091 | fprintf(stderr, "You specified" | |
1092 | "CRAM-MD5 as authentication method, " | |
1093 | "but %s doesn't support it.\n", srvc->host); | |
1094 | goto bail; | |
1095 | } | |
1096 | /* CRAM-MD5 */ | |
1097 | ||
1098 | memset(&cb, 0, sizeof(cb)); | |
1099 | cb.cont = auth_cram_md5; | |
1100 | if (imap_exec(ctx, &cb, "AUTHENTICATE CRAM-MD5") != RESP_OK) { | |
1101 | fprintf(stderr, "IMAP error: AUTHENTICATE CRAM-MD5 failed\n"); | |
1102 | goto bail; | |
1103 | } | |
1104 | } else { | |
1105 | fprintf(stderr, "Unknown authentication method:%s\n", srvc->host); | |
1106 | goto bail; | |
1107 | } | |
1108 | } else { | |
10439d89 CW |
1109 | if (!imap->buf.sock.ssl) |
1110 | imap_warn("*** IMAP Warning *** Password is being " | |
1111 | "sent in the clear\n"); | |
ae9c606e HM |
1112 | if (imap_exec(ctx, NULL, "LOGIN \"%s\" \"%s\"", srvc->user, srvc->pass) != RESP_OK) { |
1113 | fprintf(stderr, "IMAP error: LOGIN failed\n"); | |
1114 | goto bail; | |
1115 | } | |
f2561fda MM |
1116 | } |
1117 | } /* !preauth */ | |
1118 | ||
791643a8 DA |
1119 | if (cred.username) |
1120 | credential_approve(&cred); | |
1121 | credential_clear(&cred); | |
1122 | ||
e0d8e308 TF |
1123 | /* check the target mailbox exists */ |
1124 | ctx->name = folder; | |
1125 | switch (imap_exec(ctx, NULL, "EXAMINE \"%s\"", ctx->name)) { | |
1126 | case RESP_OK: | |
1127 | /* ok */ | |
1128 | break; | |
1129 | case RESP_BAD: | |
1130 | fprintf(stderr, "IMAP error: could not check mailbox\n"); | |
1131 | goto out; | |
1132 | case RESP_NO: | |
1133 | if (imap_exec(ctx, NULL, "CREATE \"%s\"", ctx->name) == RESP_OK) { | |
1134 | imap_info("Created missing mailbox\n"); | |
1135 | } else { | |
1136 | fprintf(stderr, "IMAP error: could not create missing mailbox\n"); | |
1137 | goto out; | |
1138 | } | |
1139 | break; | |
1140 | } | |
1141 | ||
f2561fda | 1142 | ctx->prefix = ""; |
fe47e1df | 1143 | return ctx; |
f2561fda | 1144 | |
9f1ad541 | 1145 | bail: |
791643a8 DA |
1146 | if (cred.username) |
1147 | credential_reject(&cred); | |
1148 | credential_clear(&cred); | |
1149 | ||
e0d8e308 | 1150 | out: |
fe47e1df | 1151 | imap_close_store(ctx); |
5142db69 | 1152 | return NULL; |
f2561fda MM |
1153 | } |
1154 | ||
3691031c MH |
1155 | /* |
1156 | * Insert CR characters as necessary in *msg to ensure that every LF | |
1157 | * character in *msg is preceded by a CR. | |
1158 | */ | |
f035ab62 | 1159 | static void lf_to_crlf(struct strbuf *msg) |
f2561fda | 1160 | { |
67d17630 | 1161 | char *new; |
3691031c MH |
1162 | size_t i, j; |
1163 | char lastc; | |
1164 | ||
1165 | /* First pass: tally, in j, the size of the new string: */ | |
1166 | for (i = j = 0, lastc = '\0'; i < msg->len; i++) { | |
1167 | if (msg->buf[i] == '\n' && lastc != '\r') | |
1168 | j++; /* a CR will need to be added here */ | |
1169 | lastc = msg->buf[i]; | |
1170 | j++; | |
f2561fda | 1171 | } |
67d17630 | 1172 | |
3691031c MH |
1173 | new = xmalloc(j + 1); |
1174 | ||
1175 | /* | |
1176 | * Second pass: write the new string. Note that this loop is | |
1177 | * otherwise identical to the first pass. | |
1178 | */ | |
1179 | for (i = j = 0, lastc = '\0'; i < msg->len; i++) { | |
1180 | if (msg->buf[i] == '\n' && lastc != '\r') | |
67d17630 | 1181 | new[j++] = '\r'; |
3691031c | 1182 | lastc = new[j++] = msg->buf[i]; |
f2561fda | 1183 | } |
3691031c | 1184 | strbuf_attach(msg, new, j, j + 1); |
67d17630 | 1185 | } |
f2561fda | 1186 | |
f035ab62 MH |
1187 | /* |
1188 | * Store msg to IMAP. Also detach and free the data from msg->data, | |
1189 | * leaving msg->data empty. | |
1190 | */ | |
fe47e1df | 1191 | static int imap_store_msg(struct imap_store *ctx, struct strbuf *msg) |
f2561fda | 1192 | { |
9f1ad541 | 1193 | struct imap *imap = ctx->imap; |
f2561fda | 1194 | struct imap_cmd_cb cb; |
f2561fda | 1195 | const char *prefix, *box; |
719125c5 | 1196 | int ret; |
f2561fda | 1197 | |
cbc60761 | 1198 | lf_to_crlf(msg); |
95c53908 | 1199 | memset(&cb, 0, sizeof(cb)); |
f2561fda | 1200 | |
cbc60761 MH |
1201 | cb.dlen = msg->len; |
1202 | cb.data = strbuf_detach(msg, NULL); | |
f2561fda | 1203 | |
636fd66b | 1204 | box = ctx->name; |
3a7cba95 | 1205 | prefix = !strcmp(box, "INBOX") ? "" : ctx->prefix; |
719125c5 | 1206 | ret = imap_exec_m(ctx, &cb, "APPEND \"%s%s\" ", prefix, box); |
f2561fda MM |
1207 | imap->caps = imap->rcaps; |
1208 | if (ret != DRV_OK) | |
1209 | return ret; | |
f2561fda MM |
1210 | |
1211 | return DRV_OK; | |
1212 | } | |
1213 | ||
f035ab62 | 1214 | static void wrap_in_html(struct strbuf *msg) |
c64d84f1 JW |
1215 | { |
1216 | struct strbuf buf = STRBUF_INIT; | |
c64d84f1 JW |
1217 | static char *content_type = "Content-Type: text/html;\n"; |
1218 | static char *pre_open = "<pre>\n"; | |
1219 | static char *pre_close = "</pre>\n"; | |
118a68f9 MH |
1220 | const char *body = strstr(msg->buf, "\n\n"); |
1221 | ||
1222 | if (!body) | |
1223 | return; /* Headers but no body; no wrapping needed */ | |
1224 | ||
1225 | body += 2; | |
1226 | ||
1227 | strbuf_add(&buf, msg->buf, body - msg->buf - 1); | |
1228 | strbuf_addstr(&buf, content_type); | |
1229 | strbuf_addch(&buf, '\n'); | |
1230 | strbuf_addstr(&buf, pre_open); | |
1231 | strbuf_addstr_xml_quoted(&buf, body); | |
c64d84f1 | 1232 | strbuf_addstr(&buf, pre_close); |
118a68f9 | 1233 | |
f035ab62 MH |
1234 | strbuf_release(msg); |
1235 | *msg = buf; | |
c64d84f1 JW |
1236 | } |
1237 | ||
f2561fda MM |
1238 | #define CHUNKSIZE 0x1000 |
1239 | ||
3a34e626 | 1240 | static int read_message(FILE *f, struct strbuf *all_msgs) |
f2561fda | 1241 | { |
635d043f | 1242 | do { |
3a34e626 | 1243 | if (strbuf_fread(all_msgs, CHUNKSIZE, f) <= 0) |
f2561fda | 1244 | break; |
635d043f PH |
1245 | } while (!feof(f)); |
1246 | ||
6360bee4 | 1247 | return ferror(f) ? -1 : 0; |
f2561fda MM |
1248 | } |
1249 | ||
3a34e626 | 1250 | static int count_messages(struct strbuf *all_msgs) |
f2561fda MM |
1251 | { |
1252 | int count = 0; | |
3a34e626 | 1253 | char *p = all_msgs->buf; |
f2561fda MM |
1254 | |
1255 | while (1) { | |
59556548 | 1256 | if (starts_with(p, "From ")) { |
4916c8f9 RR |
1257 | p = strstr(p+5, "\nFrom: "); |
1258 | if (!p) break; | |
1259 | p = strstr(p+7, "\nDate: "); | |
1260 | if (!p) break; | |
1261 | p = strstr(p+7, "\nSubject: "); | |
1262 | if (!p) break; | |
1263 | p += 10; | |
f2561fda | 1264 | count++; |
f2561fda | 1265 | } |
95c53908 | 1266 | p = strstr(p+5, "\nFrom "); |
f2561fda MM |
1267 | if (!p) |
1268 | break; | |
1269 | p++; | |
1270 | } | |
1271 | return count; | |
1272 | } | |
1273 | ||
f035ab62 MH |
1274 | /* |
1275 | * Copy the next message from all_msgs, starting at offset *ofs, to | |
1276 | * msg. Update *ofs to the start of the following message. Return | |
1277 | * true iff a message was successfully copied. | |
1278 | */ | |
1279 | static int split_msg(struct strbuf *all_msgs, struct strbuf *msg, int *ofs) | |
f2561fda MM |
1280 | { |
1281 | char *p, *data; | |
f035ab62 | 1282 | size_t len; |
f2561fda | 1283 | |
f2561fda MM |
1284 | if (*ofs >= all_msgs->len) |
1285 | return 0; | |
1286 | ||
3a34e626 | 1287 | data = &all_msgs->buf[*ofs]; |
f035ab62 | 1288 | len = all_msgs->len - *ofs; |
f2561fda | 1289 | |
59556548 | 1290 | if (len < 5 || !starts_with(data, "From ")) |
f2561fda MM |
1291 | return 0; |
1292 | ||
95c53908 | 1293 | p = strchr(data, '\n'); |
e0b08307 | 1294 | if (p) { |
f035ab62 MH |
1295 | p++; |
1296 | len -= p - data; | |
1297 | *ofs += p - data; | |
e0b08307 MA |
1298 | data = p; |
1299 | } | |
1300 | ||
95c53908 | 1301 | p = strstr(data, "\nFrom "); |
f2561fda | 1302 | if (p) |
f035ab62 | 1303 | len = &p[1] - data; |
f2561fda | 1304 | |
f035ab62 MH |
1305 | strbuf_add(msg, data, len); |
1306 | *ofs += len; | |
a6080a0a | 1307 | return 1; |
f2561fda MM |
1308 | } |
1309 | ||
ef7e1d0c | 1310 | static void git_imap_config(void) |
f2561fda | 1311 | { |
ef7e1d0c TA |
1312 | const char *val = NULL; |
1313 | ||
1314 | git_config_get_bool("imap.sslverify", &server.ssl_verify); | |
1315 | git_config_get_bool("imap.preformattedhtml", &server.use_html); | |
5dcdc780 | 1316 | git_config_get_string("imap.folder", &server.folder); |
3c17c34a | 1317 | |
ef7e1d0c TA |
1318 | if (!git_config_get_value("imap.host", &val)) { |
1319 | if (!val) { | |
1320 | git_die_config("imap.host", "Missing value for 'imap.host'"); | |
1321 | } else { | |
1322 | if (starts_with(val, "imap:")) | |
1323 | val += 5; | |
1324 | else if (starts_with(val, "imaps:")) { | |
1325 | val += 6; | |
1326 | server.use_ssl = 1; | |
1327 | } | |
1328 | if (starts_with(val, "//")) | |
1329 | val += 2; | |
1330 | server.host = xstrdup(val); | |
f2561fda | 1331 | } |
ef7e1d0c | 1332 | } |
ae9c606e | 1333 | |
ef7e1d0c TA |
1334 | git_config_get_string("imap.user", &server.user); |
1335 | git_config_get_string("imap.pass", &server.pass); | |
1336 | git_config_get_int("imap.port", &server.port); | |
1337 | git_config_get_string("imap.tunnel", &server.tunnel); | |
1338 | git_config_get_string("imap.authmethod", &server.auth_method); | |
f2561fda MM |
1339 | } |
1340 | ||
95c53908 | 1341 | int main(int argc, char **argv) |
f2561fda | 1342 | { |
3a34e626 | 1343 | struct strbuf all_msgs = STRBUF_INIT; |
cbc60761 | 1344 | struct strbuf msg = STRBUF_INIT; |
fe47e1df | 1345 | struct imap_store *ctx = NULL; |
f2561fda MM |
1346 | int ofs = 0; |
1347 | int r; | |
1348 | int total, n = 0; | |
a0406b94 | 1349 | int nongit_ok; |
f2561fda | 1350 | |
2fb3f6db | 1351 | git_extract_argv0_path(argv[0]); |
f2561fda | 1352 | |
5e9637c6 ÆAB |
1353 | git_setup_gettext(); |
1354 | ||
9a2861e3 JN |
1355 | if (argc != 1) |
1356 | usage(imap_send_usage); | |
f2561fda | 1357 | |
a0406b94 | 1358 | setup_git_directory_gently(&nongit_ok); |
ef7e1d0c | 1359 | git_imap_config(); |
f2561fda | 1360 | |
684ec6c6 RS |
1361 | if (!server.port) |
1362 | server.port = server.use_ssl ? 993 : 143; | |
f2561fda | 1363 | |
39180571 | 1364 | if (!server.folder) { |
95c53908 | 1365 | fprintf(stderr, "no imap store specified\n"); |
f2561fda MM |
1366 | return 1; |
1367 | } | |
5b67b8e2 | 1368 | if (!server.host) { |
34b5cd1f | 1369 | if (!server.tunnel) { |
95c53908 | 1370 | fprintf(stderr, "no imap host specified\n"); |
34b5cd1f JK |
1371 | return 1; |
1372 | } | |
1373 | server.host = "tunnel"; | |
5b67b8e2 | 1374 | } |
f2561fda MM |
1375 | |
1376 | /* read the messages */ | |
6360bee4 MH |
1377 | if (read_message(stdin, &all_msgs)) { |
1378 | fprintf(stderr, "error reading input\n"); | |
1379 | return 1; | |
1380 | } | |
1381 | ||
1382 | if (all_msgs.len == 0) { | |
9f1ad541 | 1383 | fprintf(stderr, "nothing to send\n"); |
f2561fda MM |
1384 | return 1; |
1385 | } | |
1386 | ||
95c53908 | 1387 | total = count_messages(&all_msgs); |
1cd88cc9 | 1388 | if (!total) { |
9f1ad541 | 1389 | fprintf(stderr, "no messages to send\n"); |
f2561fda MM |
1390 | return 1; |
1391 | } | |
1392 | ||
1393 | /* write it to the imap server */ | |
5dcdc780 | 1394 | ctx = imap_open_store(&server, server.folder); |
f2561fda | 1395 | if (!ctx) { |
9f1ad541 | 1396 | fprintf(stderr, "failed to open store\n"); |
f2561fda MM |
1397 | return 1; |
1398 | } | |
1399 | ||
9f1ad541 | 1400 | fprintf(stderr, "sending %d message%s\n", total, (total != 1) ? "s" : ""); |
f2561fda MM |
1401 | while (1) { |
1402 | unsigned percent = n * 100 / total; | |
f035ab62 | 1403 | |
95c53908 | 1404 | fprintf(stderr, "%4u%% (%d/%d) done\r", percent, n, total); |
cbc60761 | 1405 | if (!split_msg(&all_msgs, &msg, &ofs)) |
f2561fda | 1406 | break; |
c64d84f1 | 1407 | if (server.use_html) |
cbc60761 | 1408 | wrap_in_html(&msg); |
3a7cba95 | 1409 | r = imap_store_msg(ctx, &msg); |
9f1ad541 | 1410 | if (r != DRV_OK) |
f2561fda | 1411 | break; |
f2561fda MM |
1412 | n++; |
1413 | } | |
95c53908 | 1414 | fprintf(stderr, "\n"); |
f2561fda | 1415 | |
95c53908 | 1416 | imap_close_store(ctx); |
f2561fda MM |
1417 | |
1418 | return 0; | |
1419 | } |