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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; | |
ae9c606e | 31 | #else |
be4c828b DA |
32 | #ifdef APPLE_COMMON_CRYPTO |
33 | #include <CommonCrypto/CommonHMAC.h> | |
34 | #define HMAC_CTX CCHmacContext | |
35 | #define HMAC_Init(hmac, key, len, algo) CCHmacInit(hmac, algo, key, len) | |
36 | #define HMAC_Update CCHmacUpdate | |
37 | #define HMAC_Final(hmac, hash, ptr) CCHmacFinal(hmac, hash) | |
38 | #define HMAC_CTX_cleanup(ignore) | |
39 | #define EVP_md5() kCCHmacAlgMD5 | |
40 | #else | |
ae9c606e HM |
41 | #include <openssl/evp.h> |
42 | #include <openssl/hmac.h> | |
be4c828b | 43 | #endif |
e174744a | 44 | #include <openssl/x509v3.h> |
684ec6c6 | 45 | #endif |
f2561fda | 46 | |
9a2861e3 | 47 | static const char imap_send_usage[] = "git imap-send < <mbox>"; |
f2561fda | 48 | |
d23b1ecf | 49 | #undef DRV_OK |
f2561fda MM |
50 | #define DRV_OK 0 |
51 | #define DRV_MSG_BAD -1 | |
52 | #define DRV_BOX_BAD -2 | |
53 | #define DRV_STORE_BAD -3 | |
54 | ||
55 | static int Verbose, Quiet; | |
56 | ||
28bea9e5 | 57 | __attribute__((format (printf, 1, 2))) |
95c53908 | 58 | static void imap_info(const char *, ...); |
28bea9e5 | 59 | __attribute__((format (printf, 1, 2))) |
95c53908 | 60 | static void imap_warn(const char *, ...); |
f2561fda | 61 | |
95c53908 | 62 | static char *next_arg(char **); |
f2561fda | 63 | |
28bea9e5 | 64 | __attribute__((format (printf, 3, 4))) |
95c53908 | 65 | static int nfsnprintf(char *buf, int blen, const char *fmt, ...); |
f2561fda | 66 | |
19247e55 PH |
67 | static int nfvasprintf(char **strp, const char *fmt, va_list ap) |
68 | { | |
69 | int len; | |
70 | char tmp[8192]; | |
71 | ||
72 | len = vsnprintf(tmp, sizeof(tmp), fmt, ap); | |
73 | if (len < 0) | |
d7530708 | 74 | die("Fatal: Out of memory"); |
19247e55 | 75 | if (len >= sizeof(tmp)) |
d7530708 | 76 | die("imap command overflow!"); |
19247e55 PH |
77 | *strp = xmemdupz(tmp, len); |
78 | return len; | |
79 | } | |
f2561fda | 80 | |
9f1ad541 | 81 | struct imap_server_conf { |
f2561fda MM |
82 | char *name; |
83 | char *tunnel; | |
84 | char *host; | |
85 | int port; | |
86 | char *user; | |
87 | char *pass; | |
684ec6c6 RS |
88 | int use_ssl; |
89 | int ssl_verify; | |
c64d84f1 | 90 | int use_html; |
ae9c606e HM |
91 | char *auth_method; |
92 | }; | |
93 | ||
94 | static struct imap_server_conf server = { | |
95 | NULL, /* name */ | |
96 | NULL, /* tunnel */ | |
97 | NULL, /* host */ | |
98 | 0, /* port */ | |
99 | NULL, /* user */ | |
100 | NULL, /* pass */ | |
101 | 0, /* use_ssl */ | |
102 | 1, /* ssl_verify */ | |
103 | 0, /* use_html */ | |
104 | NULL, /* auth_method */ | |
9f1ad541 | 105 | }; |
f2561fda | 106 | |
9f1ad541 | 107 | struct imap_socket { |
7a7796e9 | 108 | int fd[2]; |
684ec6c6 | 109 | SSL *ssl; |
9f1ad541 | 110 | }; |
f2561fda | 111 | |
9f1ad541 JH |
112 | struct imap_buffer { |
113 | struct imap_socket sock; | |
f2561fda MM |
114 | int bytes; |
115 | int offset; | |
116 | char buf[1024]; | |
9f1ad541 | 117 | }; |
f2561fda MM |
118 | |
119 | struct imap_cmd; | |
120 | ||
9f1ad541 | 121 | struct imap { |
f2561fda | 122 | int uidnext; /* from SELECT responses */ |
f2561fda MM |
123 | unsigned caps, rcaps; /* CAPABILITY results */ |
124 | /* command queue */ | |
125 | int nexttag, num_in_progress, literal_pending; | |
126 | struct imap_cmd *in_progress, **in_progress_append; | |
9f1ad541 JH |
127 | struct imap_buffer buf; /* this is BIG, so put it last */ |
128 | }; | |
f2561fda | 129 | |
9f1ad541 | 130 | struct imap_store { |
636fd66b MH |
131 | /* currently open mailbox */ |
132 | const char *name; /* foreign! maybe preset? */ | |
133 | int uidvalidity; | |
9f1ad541 | 134 | struct imap *imap; |
f2561fda | 135 | const char *prefix; |
9f1ad541 | 136 | }; |
f2561fda MM |
137 | |
138 | struct imap_cmd_cb { | |
9f1ad541 JH |
139 | int (*cont)(struct imap_store *ctx, struct imap_cmd *cmd, const char *prompt); |
140 | void (*done)(struct imap_store *ctx, struct imap_cmd *cmd, int response); | |
f2561fda MM |
141 | void *ctx; |
142 | char *data; | |
143 | int dlen; | |
144 | int uid; | |
145 | unsigned create:1, trycreate:1; | |
146 | }; | |
147 | ||
148 | struct imap_cmd { | |
149 | struct imap_cmd *next; | |
150 | struct imap_cmd_cb cb; | |
151 | char *cmd; | |
152 | int tag; | |
153 | }; | |
154 | ||
155 | #define CAP(cap) (imap->caps & (1 << (cap))) | |
156 | ||
157 | enum CAPABILITY { | |
158 | NOLOGIN = 0, | |
159 | UIDPLUS, | |
160 | LITERALPLUS, | |
161 | NAMESPACE, | |
684ec6c6 | 162 | STARTTLS, |
4b05548f | 163 | AUTH_CRAM_MD5 |
f2561fda MM |
164 | }; |
165 | ||
166 | static const char *cap_list[] = { | |
167 | "LOGINDISABLED", | |
168 | "UIDPLUS", | |
169 | "LITERAL+", | |
170 | "NAMESPACE", | |
684ec6c6 | 171 | "STARTTLS", |
ae9c606e | 172 | "AUTH=CRAM-MD5", |
f2561fda MM |
173 | }; |
174 | ||
175 | #define RESP_OK 0 | |
176 | #define RESP_NO 1 | |
177 | #define RESP_BAD 2 | |
178 | ||
9f1ad541 | 179 | static int get_cmd_result(struct imap_store *ctx, struct imap_cmd *tcmd); |
f2561fda MM |
180 | |
181 | ||
684ec6c6 RS |
182 | #ifndef NO_OPENSSL |
183 | static void ssl_socket_perror(const char *func) | |
184 | { | |
2af202be | 185 | fprintf(stderr, "%s: %s\n", func, ERR_error_string(ERR_get_error(), NULL)); |
684ec6c6 RS |
186 | } |
187 | #endif | |
188 | ||
9f1ad541 | 189 | static void socket_perror(const char *func, struct imap_socket *sock, int ret) |
f2561fda | 190 | { |
684ec6c6 RS |
191 | #ifndef NO_OPENSSL |
192 | if (sock->ssl) { | |
193 | int sslerr = SSL_get_error(sock->ssl, ret); | |
194 | switch (sslerr) { | |
195 | case SSL_ERROR_NONE: | |
196 | break; | |
197 | case SSL_ERROR_SYSCALL: | |
198 | perror("SSL_connect"); | |
199 | break; | |
200 | default: | |
201 | ssl_socket_perror("SSL_connect"); | |
202 | break; | |
203 | } | |
204 | } else | |
205 | #endif | |
206 | { | |
207 | if (ret < 0) | |
208 | perror(func); | |
209 | else | |
210 | fprintf(stderr, "%s: unexpected EOF\n", func); | |
211 | } | |
212 | } | |
213 | ||
1e1fe529 | 214 | #ifdef NO_OPENSSL |
9f1ad541 | 215 | static int ssl_socket_connect(struct imap_socket *sock, int use_tls_only, int verify) |
684ec6c6 | 216 | { |
684ec6c6 RS |
217 | fprintf(stderr, "SSL requested but SSL support not compiled in\n"); |
218 | return -1; | |
1e1fe529 JH |
219 | } |
220 | ||
1e380ddc | 221 | #else |
1e1fe529 | 222 | |
b62fb077 OB |
223 | static int host_matches(const char *host, const char *pattern) |
224 | { | |
225 | if (pattern[0] == '*' && pattern[1] == '.') { | |
226 | pattern += 2; | |
227 | if (!(host = strchr(host, '.'))) | |
228 | return 0; | |
229 | host++; | |
230 | } | |
231 | ||
232 | return *host && *pattern && !strcasecmp(host, pattern); | |
233 | } | |
234 | ||
235 | static int verify_hostname(X509 *cert, const char *hostname) | |
236 | { | |
237 | int len; | |
238 | X509_NAME *subj; | |
239 | char cname[1000]; | |
e174744a OB |
240 | int i, found; |
241 | STACK_OF(GENERAL_NAME) *subj_alt_names; | |
242 | ||
243 | /* try the DNS subjectAltNames */ | |
244 | found = 0; | |
245 | if ((subj_alt_names = X509_get_ext_d2i(cert, NID_subject_alt_name, NULL, NULL))) { | |
246 | int num_subj_alt_names = sk_GENERAL_NAME_num(subj_alt_names); | |
247 | for (i = 0; !found && i < num_subj_alt_names; i++) { | |
248 | GENERAL_NAME *subj_alt_name = sk_GENERAL_NAME_value(subj_alt_names, i); | |
249 | if (subj_alt_name->type == GEN_DNS && | |
250 | strlen((const char *)subj_alt_name->d.ia5->data) == (size_t)subj_alt_name->d.ia5->length && | |
251 | host_matches(hostname, (const char *)(subj_alt_name->d.ia5->data))) | |
252 | found = 1; | |
253 | } | |
254 | sk_GENERAL_NAME_pop_free(subj_alt_names, GENERAL_NAME_free); | |
255 | } | |
256 | if (found) | |
257 | return 0; | |
b62fb077 OB |
258 | |
259 | /* try the common name */ | |
260 | if (!(subj = X509_get_subject_name(cert))) | |
261 | return error("cannot get certificate subject"); | |
262 | if ((len = X509_NAME_get_text_by_NID(subj, NID_commonName, cname, sizeof(cname))) < 0) | |
263 | return error("cannot get certificate common name"); | |
264 | if (strlen(cname) == (size_t)len && host_matches(hostname, cname)) | |
265 | return 0; | |
266 | return error("certificate owner '%s' does not match hostname '%s'", | |
267 | cname, hostname); | |
268 | } | |
269 | ||
1e1fe529 JH |
270 | static int ssl_socket_connect(struct imap_socket *sock, int use_tls_only, int verify) |
271 | { | |
1e380ddc VL |
272 | #if (OPENSSL_VERSION_NUMBER >= 0x10000000L) |
273 | const SSL_METHOD *meth; | |
684ec6c6 RS |
274 | #else |
275 | SSL_METHOD *meth; | |
1e380ddc | 276 | #endif |
684ec6c6 RS |
277 | SSL_CTX *ctx; |
278 | int ret; | |
b62fb077 | 279 | X509 *cert; |
684ec6c6 RS |
280 | |
281 | SSL_library_init(); | |
282 | SSL_load_error_strings(); | |
283 | ||
284 | if (use_tls_only) | |
285 | meth = TLSv1_method(); | |
f2561fda | 286 | else |
684ec6c6 RS |
287 | meth = SSLv23_method(); |
288 | ||
289 | if (!meth) { | |
290 | ssl_socket_perror("SSLv23_method"); | |
291 | return -1; | |
292 | } | |
293 | ||
294 | ctx = SSL_CTX_new(meth); | |
295 | ||
296 | if (verify) | |
297 | SSL_CTX_set_verify(ctx, SSL_VERIFY_PEER, NULL); | |
298 | ||
299 | if (!SSL_CTX_set_default_verify_paths(ctx)) { | |
300 | ssl_socket_perror("SSL_CTX_set_default_verify_paths"); | |
301 | return -1; | |
302 | } | |
303 | sock->ssl = SSL_new(ctx); | |
304 | if (!sock->ssl) { | |
305 | ssl_socket_perror("SSL_new"); | |
306 | return -1; | |
307 | } | |
7a7796e9 EFL |
308 | if (!SSL_set_rfd(sock->ssl, sock->fd[0])) { |
309 | ssl_socket_perror("SSL_set_rfd"); | |
310 | return -1; | |
311 | } | |
312 | if (!SSL_set_wfd(sock->ssl, sock->fd[1])) { | |
313 | ssl_socket_perror("SSL_set_wfd"); | |
684ec6c6 RS |
314 | return -1; |
315 | } | |
316 | ||
698a1ec4 JH |
317 | #ifdef SSL_CTRL_SET_TLSEXT_HOSTNAME |
318 | /* | |
319 | * SNI (RFC4366) | |
320 | * OpenSSL does not document this function, but the implementation | |
321 | * returns 1 on success, 0 on failure after calling SSLerr(). | |
322 | */ | |
323 | ret = SSL_set_tlsext_host_name(sock->ssl, server.host); | |
324 | if (ret != 1) | |
325 | warning("SSL_set_tlsext_host_name(%s) failed.", server.host); | |
326 | #endif | |
327 | ||
684ec6c6 RS |
328 | ret = SSL_connect(sock->ssl); |
329 | if (ret <= 0) { | |
330 | socket_perror("SSL_connect", sock, ret); | |
331 | return -1; | |
332 | } | |
333 | ||
b62fb077 OB |
334 | if (verify) { |
335 | /* make sure the hostname matches that of the certificate */ | |
336 | cert = SSL_get_peer_certificate(sock->ssl); | |
337 | if (!cert) | |
338 | return error("unable to get peer certificate."); | |
339 | if (verify_hostname(cert, server.host) < 0) | |
340 | return -1; | |
341 | } | |
342 | ||
684ec6c6 | 343 | return 0; |
f2561fda | 344 | } |
1e1fe529 | 345 | #endif |
f2561fda | 346 | |
9f1ad541 | 347 | static int socket_read(struct imap_socket *sock, char *buf, int len) |
f2561fda | 348 | { |
684ec6c6 RS |
349 | ssize_t n; |
350 | #ifndef NO_OPENSSL | |
351 | if (sock->ssl) | |
352 | n = SSL_read(sock->ssl, buf, len); | |
353 | else | |
354 | #endif | |
7a7796e9 | 355 | n = xread(sock->fd[0], buf, len); |
f2561fda | 356 | if (n <= 0) { |
95c53908 | 357 | socket_perror("read", sock, n); |
7a7796e9 EFL |
358 | close(sock->fd[0]); |
359 | close(sock->fd[1]); | |
360 | sock->fd[0] = sock->fd[1] = -1; | |
f2561fda MM |
361 | } |
362 | return n; | |
363 | } | |
364 | ||
9f1ad541 | 365 | static int socket_write(struct imap_socket *sock, const char *buf, int len) |
f2561fda | 366 | { |
684ec6c6 RS |
367 | int n; |
368 | #ifndef NO_OPENSSL | |
369 | if (sock->ssl) | |
370 | n = SSL_write(sock->ssl, buf, len); | |
371 | else | |
372 | #endif | |
7a7796e9 | 373 | n = write_in_full(sock->fd[1], buf, len); |
f2561fda | 374 | if (n != len) { |
95c53908 | 375 | socket_perror("write", sock, n); |
7a7796e9 EFL |
376 | close(sock->fd[0]); |
377 | close(sock->fd[1]); | |
378 | sock->fd[0] = sock->fd[1] = -1; | |
f2561fda MM |
379 | } |
380 | return n; | |
381 | } | |
382 | ||
9f1ad541 | 383 | static void socket_shutdown(struct imap_socket *sock) |
684ec6c6 RS |
384 | { |
385 | #ifndef NO_OPENSSL | |
386 | if (sock->ssl) { | |
387 | SSL_shutdown(sock->ssl); | |
388 | SSL_free(sock->ssl); | |
389 | } | |
390 | #endif | |
7a7796e9 EFL |
391 | close(sock->fd[0]); |
392 | close(sock->fd[1]); | |
684ec6c6 RS |
393 | } |
394 | ||
f2561fda | 395 | /* simple line buffering */ |
9f1ad541 | 396 | static int buffer_gets(struct imap_buffer *b, char **s) |
f2561fda MM |
397 | { |
398 | int n; | |
399 | int start = b->offset; | |
400 | ||
401 | *s = b->buf + start; | |
402 | ||
403 | for (;;) { | |
404 | /* make sure we have enough data to read the \r\n sequence */ | |
405 | if (b->offset + 1 >= b->bytes) { | |
406 | if (start) { | |
407 | /* shift down used bytes */ | |
408 | *s = b->buf; | |
409 | ||
95c53908 | 410 | assert(start <= b->bytes); |
f2561fda MM |
411 | n = b->bytes - start; |
412 | ||
413 | if (n) | |
173a9cbe | 414 | memmove(b->buf, b->buf + start, n); |
f2561fda MM |
415 | b->offset -= start; |
416 | b->bytes = n; | |
417 | start = 0; | |
418 | } | |
419 | ||
95c53908 RS |
420 | n = socket_read(&b->sock, b->buf + b->bytes, |
421 | sizeof(b->buf) - b->bytes); | |
f2561fda MM |
422 | |
423 | if (n <= 0) | |
424 | return -1; | |
425 | ||
426 | b->bytes += n; | |
427 | } | |
428 | ||
429 | if (b->buf[b->offset] == '\r') { | |
95c53908 | 430 | assert(b->offset + 1 < b->bytes); |
f2561fda MM |
431 | if (b->buf[b->offset + 1] == '\n') { |
432 | b->buf[b->offset] = 0; /* terminate the string */ | |
433 | b->offset += 2; /* next line */ | |
434 | if (Verbose) | |
95c53908 | 435 | puts(*s); |
f2561fda MM |
436 | return 0; |
437 | } | |
438 | } | |
439 | ||
440 | b->offset++; | |
441 | } | |
442 | /* not reached */ | |
443 | } | |
444 | ||
95c53908 | 445 | static void imap_info(const char *msg, ...) |
f2561fda MM |
446 | { |
447 | va_list va; | |
448 | ||
449 | if (!Quiet) { | |
95c53908 RS |
450 | va_start(va, msg); |
451 | vprintf(msg, va); | |
452 | va_end(va); | |
453 | fflush(stdout); | |
f2561fda MM |
454 | } |
455 | } | |
456 | ||
95c53908 | 457 | static void imap_warn(const char *msg, ...) |
f2561fda MM |
458 | { |
459 | va_list va; | |
460 | ||
461 | if (Quiet < 2) { | |
95c53908 RS |
462 | va_start(va, msg); |
463 | vfprintf(stderr, msg, va); | |
464 | va_end(va); | |
f2561fda MM |
465 | } |
466 | } | |
467 | ||
95c53908 | 468 | static char *next_arg(char **s) |
f2561fda MM |
469 | { |
470 | char *ret; | |
471 | ||
472 | if (!s || !*s) | |
5142db69 | 473 | return NULL; |
95c53908 | 474 | while (isspace((unsigned char) **s)) |
f2561fda MM |
475 | (*s)++; |
476 | if (!**s) { | |
5142db69 RS |
477 | *s = NULL; |
478 | return NULL; | |
f2561fda MM |
479 | } |
480 | if (**s == '"') { | |
481 | ++*s; | |
482 | ret = *s; | |
95c53908 | 483 | *s = strchr(*s, '"'); |
f2561fda MM |
484 | } else { |
485 | ret = *s; | |
95c53908 | 486 | while (**s && !isspace((unsigned char) **s)) |
f2561fda MM |
487 | (*s)++; |
488 | } | |
489 | if (*s) { | |
490 | if (**s) | |
491 | *(*s)++ = 0; | |
492 | if (!**s) | |
5142db69 | 493 | *s = NULL; |
f2561fda MM |
494 | } |
495 | return ret; | |
496 | } | |
497 | ||
95c53908 | 498 | static int nfsnprintf(char *buf, int blen, const char *fmt, ...) |
f2561fda MM |
499 | { |
500 | int ret; | |
501 | va_list va; | |
502 | ||
95c53908 RS |
503 | va_start(va, fmt); |
504 | if (blen <= 0 || (unsigned)(ret = vsnprintf(buf, blen, fmt, va)) >= (unsigned)blen) | |
d7530708 | 505 | die("Fatal: buffer too small. Please report a bug."); |
95c53908 | 506 | va_end(va); |
f2561fda MM |
507 | return ret; |
508 | } | |
509 | ||
9f1ad541 | 510 | static struct imap_cmd *v_issue_imap_cmd(struct imap_store *ctx, |
95c53908 RS |
511 | struct imap_cmd_cb *cb, |
512 | const char *fmt, va_list ap) | |
f2561fda | 513 | { |
9f1ad541 | 514 | struct imap *imap = ctx->imap; |
f2561fda MM |
515 | struct imap_cmd *cmd; |
516 | int n, bufl; | |
517 | char buf[1024]; | |
518 | ||
95c53908 RS |
519 | cmd = xmalloc(sizeof(struct imap_cmd)); |
520 | nfvasprintf(&cmd->cmd, fmt, ap); | |
f2561fda MM |
521 | cmd->tag = ++imap->nexttag; |
522 | ||
523 | if (cb) | |
524 | cmd->cb = *cb; | |
525 | else | |
95c53908 | 526 | memset(&cmd->cb, 0, sizeof(cmd->cb)); |
f2561fda MM |
527 | |
528 | while (imap->literal_pending) | |
95c53908 | 529 | get_cmd_result(ctx, NULL); |
f2561fda | 530 | |
1702b138 ÆAB |
531 | if (!cmd->cb.data) |
532 | bufl = nfsnprintf(buf, sizeof(buf), "%d %s\r\n", cmd->tag, cmd->cmd); | |
533 | else | |
534 | bufl = nfsnprintf(buf, sizeof(buf), "%d %s{%d%s}\r\n", | |
535 | cmd->tag, cmd->cmd, cmd->cb.dlen, | |
536 | CAP(LITERALPLUS) ? "+" : ""); | |
f2561fda | 537 | |
f2561fda MM |
538 | if (Verbose) { |
539 | if (imap->num_in_progress) | |
95c53908 RS |
540 | printf("(%d in progress) ", imap->num_in_progress); |
541 | if (memcmp(cmd->cmd, "LOGIN", 5)) | |
542 | printf(">>> %s", buf); | |
f2561fda | 543 | else |
95c53908 | 544 | printf(">>> %d LOGIN <user> <pass>\n", cmd->tag); |
f2561fda | 545 | } |
95c53908 RS |
546 | if (socket_write(&imap->buf.sock, buf, bufl) != bufl) { |
547 | free(cmd->cmd); | |
548 | free(cmd); | |
8e0f7003 | 549 | if (cb) |
95c53908 | 550 | free(cb->data); |
f2561fda MM |
551 | return NULL; |
552 | } | |
553 | if (cmd->cb.data) { | |
554 | if (CAP(LITERALPLUS)) { | |
95c53908 RS |
555 | n = socket_write(&imap->buf.sock, cmd->cb.data, cmd->cb.dlen); |
556 | free(cmd->cb.data); | |
f2561fda | 557 | if (n != cmd->cb.dlen || |
8e76bf3f | 558 | socket_write(&imap->buf.sock, "\r\n", 2) != 2) { |
95c53908 RS |
559 | free(cmd->cmd); |
560 | free(cmd); | |
f2561fda MM |
561 | return NULL; |
562 | } | |
5142db69 | 563 | cmd->cb.data = NULL; |
f2561fda MM |
564 | } else |
565 | imap->literal_pending = 1; | |
566 | } else if (cmd->cb.cont) | |
567 | imap->literal_pending = 1; | |
5142db69 | 568 | cmd->next = NULL; |
f2561fda MM |
569 | *imap->in_progress_append = cmd; |
570 | imap->in_progress_append = &cmd->next; | |
571 | imap->num_in_progress++; | |
572 | return cmd; | |
573 | } | |
574 | ||
28bea9e5 | 575 | __attribute__((format (printf, 3, 4))) |
9f1ad541 | 576 | static struct imap_cmd *issue_imap_cmd(struct imap_store *ctx, |
95c53908 RS |
577 | struct imap_cmd_cb *cb, |
578 | const char *fmt, ...) | |
f2561fda MM |
579 | { |
580 | struct imap_cmd *ret; | |
581 | va_list ap; | |
582 | ||
95c53908 RS |
583 | va_start(ap, fmt); |
584 | ret = v_issue_imap_cmd(ctx, cb, fmt, ap); | |
585 | va_end(ap); | |
f2561fda MM |
586 | return ret; |
587 | } | |
588 | ||
28bea9e5 | 589 | __attribute__((format (printf, 3, 4))) |
9f1ad541 | 590 | static int imap_exec(struct imap_store *ctx, struct imap_cmd_cb *cb, |
95c53908 | 591 | const char *fmt, ...) |
f2561fda MM |
592 | { |
593 | va_list ap; | |
594 | struct imap_cmd *cmdp; | |
595 | ||
95c53908 RS |
596 | va_start(ap, fmt); |
597 | cmdp = v_issue_imap_cmd(ctx, cb, fmt, ap); | |
598 | va_end(ap); | |
f2561fda MM |
599 | if (!cmdp) |
600 | return RESP_BAD; | |
601 | ||
95c53908 | 602 | return get_cmd_result(ctx, cmdp); |
f2561fda MM |
603 | } |
604 | ||
28bea9e5 | 605 | __attribute__((format (printf, 3, 4))) |
9f1ad541 | 606 | static int imap_exec_m(struct imap_store *ctx, struct imap_cmd_cb *cb, |
95c53908 | 607 | const char *fmt, ...) |
f2561fda MM |
608 | { |
609 | va_list ap; | |
610 | struct imap_cmd *cmdp; | |
611 | ||
95c53908 RS |
612 | va_start(ap, fmt); |
613 | cmdp = v_issue_imap_cmd(ctx, cb, fmt, ap); | |
614 | va_end(ap); | |
f2561fda MM |
615 | if (!cmdp) |
616 | return DRV_STORE_BAD; | |
617 | ||
95c53908 | 618 | switch (get_cmd_result(ctx, cmdp)) { |
f2561fda MM |
619 | case RESP_BAD: return DRV_STORE_BAD; |
620 | case RESP_NO: return DRV_MSG_BAD; | |
621 | default: return DRV_OK; | |
622 | } | |
623 | } | |
624 | ||
3648b4d9 | 625 | static int skip_imap_list_l(char **sp, int level) |
f2561fda | 626 | { |
3648b4d9 | 627 | char *s = *sp; |
f2561fda MM |
628 | |
629 | for (;;) { | |
95c53908 | 630 | while (isspace((unsigned char)*s)) |
f2561fda MM |
631 | s++; |
632 | if (level && *s == ')') { | |
633 | s++; | |
634 | break; | |
635 | } | |
f2561fda MM |
636 | if (*s == '(') { |
637 | /* sublist */ | |
638 | s++; | |
3648b4d9 | 639 | if (skip_imap_list_l(&s, level + 1)) |
f2561fda MM |
640 | goto bail; |
641 | } else if (*s == '"') { | |
642 | /* quoted string */ | |
643 | s++; | |
f2561fda MM |
644 | for (; *s != '"'; s++) |
645 | if (!*s) | |
646 | goto bail; | |
f2561fda | 647 | s++; |
f2561fda MM |
648 | } else { |
649 | /* atom */ | |
95c53908 | 650 | for (; *s && !isspace((unsigned char)*s); s++) |
f2561fda MM |
651 | if (level && *s == ')') |
652 | break; | |
f2561fda MM |
653 | } |
654 | ||
655 | if (!level) | |
656 | break; | |
657 | if (!*s) | |
658 | goto bail; | |
659 | } | |
660 | *sp = s; | |
f2561fda MM |
661 | return 0; |
662 | ||
9f1ad541 | 663 | bail: |
f2561fda MM |
664 | return -1; |
665 | } | |
666 | ||
3648b4d9 | 667 | static void skip_list(char **sp) |
f2561fda | 668 | { |
3648b4d9 | 669 | skip_imap_list_l(sp, 0); |
f2561fda MM |
670 | } |
671 | ||
9f1ad541 | 672 | static void parse_capability(struct imap *imap, char *cmd) |
f2561fda MM |
673 | { |
674 | char *arg; | |
675 | unsigned i; | |
676 | ||
677 | imap->caps = 0x80000000; | |
95c53908 | 678 | while ((arg = next_arg(&cmd))) |
f2561fda | 679 | for (i = 0; i < ARRAY_SIZE(cap_list); i++) |
95c53908 | 680 | if (!strcmp(cap_list[i], arg)) |
f2561fda MM |
681 | imap->caps |= 1 << i; |
682 | imap->rcaps = imap->caps; | |
683 | } | |
684 | ||
9f1ad541 | 685 | static int parse_response_code(struct imap_store *ctx, struct imap_cmd_cb *cb, |
95c53908 | 686 | char *s) |
f2561fda | 687 | { |
9f1ad541 | 688 | struct imap *imap = ctx->imap; |
f2561fda MM |
689 | char *arg, *p; |
690 | ||
691 | if (*s != '[') | |
692 | return RESP_OK; /* no response code */ | |
693 | s++; | |
95c53908 RS |
694 | if (!(p = strchr(s, ']'))) { |
695 | fprintf(stderr, "IMAP error: malformed response code\n"); | |
f2561fda MM |
696 | return RESP_BAD; |
697 | } | |
698 | *p++ = 0; | |
95c53908 RS |
699 | arg = next_arg(&s); |
700 | if (!strcmp("UIDVALIDITY", arg)) { | |
636fd66b | 701 | if (!(arg = next_arg(&s)) || !(ctx->uidvalidity = atoi(arg))) { |
95c53908 | 702 | fprintf(stderr, "IMAP error: malformed UIDVALIDITY status\n"); |
f2561fda MM |
703 | return RESP_BAD; |
704 | } | |
95c53908 RS |
705 | } else if (!strcmp("UIDNEXT", arg)) { |
706 | if (!(arg = next_arg(&s)) || !(imap->uidnext = atoi(arg))) { | |
707 | fprintf(stderr, "IMAP error: malformed NEXTUID status\n"); | |
f2561fda MM |
708 | return RESP_BAD; |
709 | } | |
95c53908 RS |
710 | } else if (!strcmp("CAPABILITY", arg)) { |
711 | parse_capability(imap, s); | |
712 | } else if (!strcmp("ALERT", arg)) { | |
f2561fda MM |
713 | /* RFC2060 says that these messages MUST be displayed |
714 | * to the user | |
715 | */ | |
95c53908 RS |
716 | for (; isspace((unsigned char)*p); p++); |
717 | fprintf(stderr, "*** IMAP ALERT *** %s\n", p); | |
718 | } else if (cb && cb->ctx && !strcmp("APPENDUID", arg)) { | |
636fd66b | 719 | if (!(arg = next_arg(&s)) || !(ctx->uidvalidity = atoi(arg)) || |
9f1ad541 | 720 | !(arg = next_arg(&s)) || !(*(int *)cb->ctx = atoi(arg))) { |
95c53908 | 721 | fprintf(stderr, "IMAP error: malformed APPENDUID status\n"); |
f2561fda MM |
722 | return RESP_BAD; |
723 | } | |
724 | } | |
725 | return RESP_OK; | |
726 | } | |
727 | ||
9f1ad541 | 728 | static int get_cmd_result(struct imap_store *ctx, struct imap_cmd *tcmd) |
f2561fda | 729 | { |
9f1ad541 | 730 | struct imap *imap = ctx->imap; |
f2561fda MM |
731 | struct imap_cmd *cmdp, **pcmdp, *ncmdp; |
732 | char *cmd, *arg, *arg1, *p; | |
733 | int n, resp, resp2, tag; | |
734 | ||
735 | for (;;) { | |
95c53908 | 736 | if (buffer_gets(&imap->buf, &cmd)) |
f2561fda MM |
737 | return RESP_BAD; |
738 | ||
95c53908 | 739 | arg = next_arg(&cmd); |
f2561fda | 740 | if (*arg == '*') { |
95c53908 | 741 | arg = next_arg(&cmd); |
f2561fda | 742 | if (!arg) { |
95c53908 | 743 | fprintf(stderr, "IMAP error: unable to parse untagged response\n"); |
f2561fda MM |
744 | return RESP_BAD; |
745 | } | |
746 | ||
95c53908 | 747 | if (!strcmp("NAMESPACE", arg)) { |
3648b4d9 MH |
748 | /* rfc2342 NAMESPACE response. */ |
749 | skip_list(&cmd); /* Personal mailboxes */ | |
750 | skip_list(&cmd); /* Others' mailboxes */ | |
751 | skip_list(&cmd); /* Shared mailboxes */ | |
95c53908 RS |
752 | } else if (!strcmp("OK", arg) || !strcmp("BAD", arg) || |
753 | !strcmp("NO", arg) || !strcmp("BYE", arg)) { | |
754 | if ((resp = parse_response_code(ctx, NULL, cmd)) != RESP_OK) | |
f2561fda | 755 | return resp; |
1efee7ff | 756 | } else if (!strcmp("CAPABILITY", arg)) { |
95c53908 | 757 | parse_capability(imap, cmd); |
1efee7ff MH |
758 | } else if ((arg1 = next_arg(&cmd))) { |
759 | ; /* | |
760 | * Unhandled response-data with at least two words. | |
761 | * Ignore it. | |
762 | * | |
763 | * NEEDSWORK: Previously this case handled '<num> EXISTS' | |
764 | * and '<num> RECENT' but as a probably-unintended side | |
765 | * effect it ignores other unrecognized two-word | |
766 | * responses. imap-send doesn't ever try to read | |
767 | * messages or mailboxes these days, so consider | |
768 | * eliminating this case. | |
769 | */ | |
f2561fda | 770 | } else { |
95c53908 | 771 | fprintf(stderr, "IMAP error: unable to parse untagged response\n"); |
f2561fda MM |
772 | return RESP_BAD; |
773 | } | |
774 | } else if (!imap->in_progress) { | |
95c53908 | 775 | fprintf(stderr, "IMAP error: unexpected reply: %s %s\n", arg, cmd ? cmd : ""); |
f2561fda MM |
776 | return RESP_BAD; |
777 | } else if (*arg == '+') { | |
778 | /* This can happen only with the last command underway, as | |
779 | it enforces a round-trip. */ | |
780 | cmdp = (struct imap_cmd *)((char *)imap->in_progress_append - | |
781 | offsetof(struct imap_cmd, next)); | |
782 | if (cmdp->cb.data) { | |
95c53908 RS |
783 | n = socket_write(&imap->buf.sock, cmdp->cb.data, cmdp->cb.dlen); |
784 | free(cmdp->cb.data); | |
5142db69 | 785 | cmdp->cb.data = NULL; |
f2561fda MM |
786 | if (n != (int)cmdp->cb.dlen) |
787 | return RESP_BAD; | |
788 | } else if (cmdp->cb.cont) { | |
95c53908 | 789 | if (cmdp->cb.cont(ctx, cmdp, cmd)) |
f2561fda MM |
790 | return RESP_BAD; |
791 | } else { | |
95c53908 | 792 | fprintf(stderr, "IMAP error: unexpected command continuation request\n"); |
f2561fda MM |
793 | return RESP_BAD; |
794 | } | |
95c53908 | 795 | if (socket_write(&imap->buf.sock, "\r\n", 2) != 2) |
f2561fda MM |
796 | return RESP_BAD; |
797 | if (!cmdp->cb.cont) | |
798 | imap->literal_pending = 0; | |
799 | if (!tcmd) | |
800 | return DRV_OK; | |
801 | } else { | |
95c53908 | 802 | tag = atoi(arg); |
f2561fda MM |
803 | for (pcmdp = &imap->in_progress; (cmdp = *pcmdp); pcmdp = &cmdp->next) |
804 | if (cmdp->tag == tag) | |
805 | goto gottag; | |
95c53908 | 806 | fprintf(stderr, "IMAP error: unexpected tag %s\n", arg); |
f2561fda | 807 | return RESP_BAD; |
9f1ad541 | 808 | gottag: |
f2561fda MM |
809 | if (!(*pcmdp = cmdp->next)) |
810 | imap->in_progress_append = pcmdp; | |
811 | imap->num_in_progress--; | |
812 | if (cmdp->cb.cont || cmdp->cb.data) | |
813 | imap->literal_pending = 0; | |
95c53908 RS |
814 | arg = next_arg(&cmd); |
815 | if (!strcmp("OK", arg)) | |
f2561fda MM |
816 | resp = DRV_OK; |
817 | else { | |
95c53908 RS |
818 | if (!strcmp("NO", arg)) { |
819 | if (cmdp->cb.create && cmd && (cmdp->cb.trycreate || !memcmp(cmd, "[TRYCREATE]", 11))) { /* SELECT, APPEND or UID COPY */ | |
820 | p = strchr(cmdp->cmd, '"'); | |
28bea9e5 | 821 | if (!issue_imap_cmd(ctx, NULL, "CREATE \"%.*s\"", (int)(strchr(p + 1, '"') - p + 1), p)) { |
f2561fda MM |
822 | resp = RESP_BAD; |
823 | goto normal; | |
824 | } | |
825 | /* not waiting here violates the spec, but a server that does not | |
826 | grok this nonetheless violates it too. */ | |
827 | cmdp->cb.create = 0; | |
95c53908 | 828 | if (!(ncmdp = issue_imap_cmd(ctx, &cmdp->cb, "%s", cmdp->cmd))) { |
f2561fda MM |
829 | resp = RESP_BAD; |
830 | goto normal; | |
831 | } | |
95c53908 RS |
832 | free(cmdp->cmd); |
833 | free(cmdp); | |
f2561fda MM |
834 | if (!tcmd) |
835 | return 0; /* ignored */ | |
836 | if (cmdp == tcmd) | |
837 | tcmd = ncmdp; | |
838 | continue; | |
839 | } | |
840 | resp = RESP_NO; | |
95c53908 | 841 | } else /*if (!strcmp("BAD", arg))*/ |
f2561fda | 842 | resp = RESP_BAD; |
95c53908 RS |
843 | fprintf(stderr, "IMAP command '%s' returned response (%s) - %s\n", |
844 | memcmp(cmdp->cmd, "LOGIN", 5) ? | |
f2561fda MM |
845 | cmdp->cmd : "LOGIN <user> <pass>", |
846 | arg, cmd ? cmd : ""); | |
847 | } | |
95c53908 | 848 | if ((resp2 = parse_response_code(ctx, &cmdp->cb, cmd)) > resp) |
f2561fda | 849 | resp = resp2; |
9f1ad541 | 850 | normal: |
f2561fda | 851 | if (cmdp->cb.done) |
95c53908 RS |
852 | cmdp->cb.done(ctx, cmdp, resp); |
853 | free(cmdp->cb.data); | |
854 | free(cmdp->cmd); | |
855 | free(cmdp); | |
f2561fda MM |
856 | if (!tcmd || tcmd == cmdp) |
857 | return resp; | |
858 | } | |
859 | } | |
860 | /* not reached */ | |
861 | } | |
862 | ||
9f1ad541 | 863 | static void imap_close_server(struct imap_store *ictx) |
f2561fda | 864 | { |
9f1ad541 | 865 | struct imap *imap = ictx->imap; |
f2561fda | 866 | |
7a7796e9 | 867 | if (imap->buf.sock.fd[0] != -1) { |
95c53908 RS |
868 | imap_exec(ictx, NULL, "LOGOUT"); |
869 | socket_shutdown(&imap->buf.sock); | |
f2561fda | 870 | } |
95c53908 | 871 | free(imap); |
f2561fda MM |
872 | } |
873 | ||
fe47e1df | 874 | static void imap_close_store(struct imap_store *ctx) |
f2561fda | 875 | { |
fe47e1df | 876 | imap_close_server(ctx); |
95c53908 | 877 | free(ctx); |
f2561fda MM |
878 | } |
879 | ||
ae9c606e HM |
880 | #ifndef NO_OPENSSL |
881 | ||
882 | /* | |
883 | * hexchar() and cram() functions are based on the code from the isync | |
884 | * project (http://isync.sf.net/). | |
885 | */ | |
886 | static char hexchar(unsigned int b) | |
f2561fda | 887 | { |
ae9c606e | 888 | return b < 10 ? '0' + b : 'a' + (b - 10); |
f2561fda MM |
889 | } |
890 | ||
ae9c606e HM |
891 | #define ENCODED_SIZE(n) (4*((n+2)/3)) |
892 | static char *cram(const char *challenge_64, const char *user, const char *pass) | |
f2561fda | 893 | { |
ae9c606e HM |
894 | int i, resp_len, encoded_len, decoded_len; |
895 | HMAC_CTX hmac; | |
896 | unsigned char hash[16]; | |
897 | char hex[33]; | |
898 | char *response, *response_64, *challenge; | |
899 | ||
900 | /* | |
901 | * length of challenge_64 (i.e. base-64 encoded string) is a good | |
902 | * enough upper bound for challenge (decoded result). | |
903 | */ | |
904 | encoded_len = strlen(challenge_64); | |
905 | challenge = xmalloc(encoded_len); | |
906 | decoded_len = EVP_DecodeBlock((unsigned char *)challenge, | |
907 | (unsigned char *)challenge_64, encoded_len); | |
908 | if (decoded_len < 0) | |
909 | die("invalid challenge %s", challenge_64); | |
910 | HMAC_Init(&hmac, (unsigned char *)pass, strlen(pass), EVP_md5()); | |
911 | HMAC_Update(&hmac, (unsigned char *)challenge, decoded_len); | |
912 | HMAC_Final(&hmac, hash, NULL); | |
913 | HMAC_CTX_cleanup(&hmac); | |
914 | ||
915 | hex[32] = 0; | |
916 | for (i = 0; i < 16; i++) { | |
917 | hex[2 * i] = hexchar((hash[i] >> 4) & 0xf); | |
918 | hex[2 * i + 1] = hexchar(hash[i] & 0xf); | |
919 | } | |
920 | ||
921 | /* response: "<user> <digest in hex>" */ | |
922 | resp_len = strlen(user) + 1 + strlen(hex) + 1; | |
923 | response = xmalloc(resp_len); | |
924 | sprintf(response, "%s %s", user, hex); | |
925 | ||
926 | response_64 = xmalloc(ENCODED_SIZE(resp_len) + 1); | |
927 | encoded_len = EVP_EncodeBlock((unsigned char *)response_64, | |
928 | (unsigned char *)response, resp_len); | |
929 | if (encoded_len < 0) | |
930 | die("EVP_EncodeBlock error"); | |
931 | response_64[encoded_len] = '\0'; | |
932 | return (char *)response_64; | |
933 | } | |
934 | ||
935 | #else | |
936 | ||
937 | static char *cram(const char *challenge_64, const char *user, const char *pass) | |
938 | { | |
939 | die("If you want to use CRAM-MD5 authenticate method, " | |
940 | "you have to build git-imap-send with OpenSSL library."); | |
941 | } | |
942 | ||
943 | #endif | |
944 | ||
945 | static int auth_cram_md5(struct imap_store *ctx, struct imap_cmd *cmd, const char *prompt) | |
946 | { | |
947 | int ret; | |
948 | char *response; | |
949 | ||
950 | response = cram(prompt, server.user, server.pass); | |
951 | ||
952 | ret = socket_write(&ctx->imap->buf.sock, response, strlen(response)); | |
953 | if (ret != strlen(response)) | |
82247e9b | 954 | return error("IMAP error: sending response failed"); |
ae9c606e HM |
955 | |
956 | free(response); | |
957 | ||
958 | return 0; | |
959 | } | |
960 | ||
fe47e1df | 961 | static struct imap_store *imap_open_store(struct imap_server_conf *srvc) |
f2561fda | 962 | { |
9f1ad541 JH |
963 | struct imap_store *ctx; |
964 | struct imap *imap; | |
f2561fda | 965 | char *arg, *rsp; |
c94d2dd0 | 966 | int s = -1, preauth; |
f2561fda | 967 | |
95c53908 | 968 | ctx = xcalloc(sizeof(*ctx), 1); |
f2561fda | 969 | |
95c53908 | 970 | ctx->imap = imap = xcalloc(sizeof(*imap), 1); |
7a7796e9 | 971 | imap->buf.sock.fd[0] = imap->buf.sock.fd[1] = -1; |
f2561fda MM |
972 | imap->in_progress_append = &imap->in_progress; |
973 | ||
974 | /* open connection to IMAP server */ | |
975 | ||
976 | if (srvc->tunnel) { | |
ac0ba18d | 977 | const char *argv[] = { srvc->tunnel, NULL }; |
c2e86add | 978 | struct child_process tunnel = {NULL}; |
f2561fda | 979 | |
c94d2dd0 | 980 | imap_info("Starting tunnel '%s'... ", srvc->tunnel); |
f2561fda | 981 | |
c94d2dd0 | 982 | tunnel.argv = argv; |
ac0ba18d | 983 | tunnel.use_shell = 1; |
c94d2dd0 EFL |
984 | tunnel.in = -1; |
985 | tunnel.out = -1; | |
986 | if (start_command(&tunnel)) | |
987 | die("cannot start proxy %s", argv[0]); | |
f2561fda | 988 | |
c94d2dd0 EFL |
989 | imap->buf.sock.fd[0] = tunnel.out; |
990 | imap->buf.sock.fd[1] = tunnel.in; | |
f2561fda | 991 | |
95c53908 | 992 | imap_info("ok\n"); |
f2561fda | 993 | } else { |
94ad2437 BK |
994 | #ifndef NO_IPV6 |
995 | struct addrinfo hints, *ai0, *ai; | |
996 | int gai; | |
997 | char portstr[6]; | |
998 | ||
1702b138 | 999 | snprintf(portstr, sizeof(portstr), "%d", srvc->port); |
94ad2437 BK |
1000 | |
1001 | memset(&hints, 0, sizeof(hints)); | |
1002 | hints.ai_socktype = SOCK_STREAM; | |
1003 | hints.ai_protocol = IPPROTO_TCP; | |
f2561fda | 1004 | |
94ad2437 BK |
1005 | imap_info("Resolving %s... ", srvc->host); |
1006 | gai = getaddrinfo(srvc->host, portstr, &hints, &ai); | |
1007 | if (gai) { | |
1008 | fprintf(stderr, "getaddrinfo: %s\n", gai_strerror(gai)); | |
1009 | goto bail; | |
f2561fda | 1010 | } |
94ad2437 | 1011 | imap_info("ok\n"); |
f2561fda | 1012 | |
94ad2437 BK |
1013 | for (ai0 = ai; ai; ai = ai->ai_next) { |
1014 | char addr[NI_MAXHOST]; | |
f2561fda | 1015 | |
94ad2437 BK |
1016 | s = socket(ai->ai_family, ai->ai_socktype, |
1017 | ai->ai_protocol); | |
1018 | if (s < 0) | |
1019 | continue; | |
f2561fda | 1020 | |
94ad2437 BK |
1021 | getnameinfo(ai->ai_addr, ai->ai_addrlen, addr, |
1022 | sizeof(addr), NULL, 0, NI_NUMERICHOST); | |
1023 | imap_info("Connecting to [%s]:%s... ", addr, portstr); | |
1024 | ||
1025 | if (connect(s, ai->ai_addr, ai->ai_addrlen) < 0) { | |
1026 | close(s); | |
1027 | s = -1; | |
1028 | perror("connect"); | |
1029 | continue; | |
1030 | } | |
1031 | ||
1032 | break; | |
1033 | } | |
1034 | freeaddrinfo(ai0); | |
1035 | #else /* NO_IPV6 */ | |
1036 | struct hostent *he; | |
1037 | struct sockaddr_in addr; | |
1038 | ||
95c53908 RS |
1039 | memset(&addr, 0, sizeof(addr)); |
1040 | addr.sin_port = htons(srvc->port); | |
f2561fda MM |
1041 | addr.sin_family = AF_INET; |
1042 | ||
95c53908 RS |
1043 | imap_info("Resolving %s... ", srvc->host); |
1044 | he = gethostbyname(srvc->host); | |
f2561fda | 1045 | if (!he) { |
95c53908 | 1046 | perror("gethostbyname"); |
f2561fda MM |
1047 | goto bail; |
1048 | } | |
95c53908 | 1049 | imap_info("ok\n"); |
f2561fda MM |
1050 | |
1051 | addr.sin_addr.s_addr = *((int *) he->h_addr_list[0]); | |
1052 | ||
95c53908 | 1053 | s = socket(PF_INET, SOCK_STREAM, 0); |
f2561fda | 1054 | |
95c53908 RS |
1055 | imap_info("Connecting to %s:%hu... ", inet_ntoa(addr.sin_addr), ntohs(addr.sin_port)); |
1056 | if (connect(s, (struct sockaddr *)&addr, sizeof(addr))) { | |
1057 | close(s); | |
94ad2437 | 1058 | s = -1; |
95c53908 | 1059 | perror("connect"); |
94ad2437 BK |
1060 | } |
1061 | #endif | |
1062 | if (s < 0) { | |
1063 | fputs("Error: unable to connect to server.\n", stderr); | |
f2561fda MM |
1064 | goto bail; |
1065 | } | |
f2561fda | 1066 | |
7a7796e9 EFL |
1067 | imap->buf.sock.fd[0] = s; |
1068 | imap->buf.sock.fd[1] = dup(s); | |
f2561fda | 1069 | |
684ec6c6 RS |
1070 | if (srvc->use_ssl && |
1071 | ssl_socket_connect(&imap->buf.sock, 0, srvc->ssl_verify)) { | |
1072 | close(s); | |
1073 | goto bail; | |
1074 | } | |
95c53908 | 1075 | imap_info("ok\n"); |
f2561fda MM |
1076 | } |
1077 | ||
1078 | /* read the greeting string */ | |
95c53908 RS |
1079 | if (buffer_gets(&imap->buf, &rsp)) { |
1080 | fprintf(stderr, "IMAP error: no greeting response\n"); | |
f2561fda MM |
1081 | goto bail; |
1082 | } | |
95c53908 RS |
1083 | arg = next_arg(&rsp); |
1084 | if (!arg || *arg != '*' || (arg = next_arg(&rsp)) == NULL) { | |
1085 | fprintf(stderr, "IMAP error: invalid greeting response\n"); | |
f2561fda MM |
1086 | goto bail; |
1087 | } | |
1088 | preauth = 0; | |
95c53908 | 1089 | if (!strcmp("PREAUTH", arg)) |
f2561fda | 1090 | preauth = 1; |
95c53908 RS |
1091 | else if (strcmp("OK", arg) != 0) { |
1092 | fprintf(stderr, "IMAP error: unknown greeting response\n"); | |
f2561fda MM |
1093 | goto bail; |
1094 | } | |
95c53908 RS |
1095 | parse_response_code(ctx, NULL, rsp); |
1096 | if (!imap->caps && imap_exec(ctx, NULL, "CAPABILITY") != RESP_OK) | |
f2561fda MM |
1097 | goto bail; |
1098 | ||
1099 | if (!preauth) { | |
684ec6c6 RS |
1100 | #ifndef NO_OPENSSL |
1101 | if (!srvc->use_ssl && CAP(STARTTLS)) { | |
d27da38a | 1102 | if (imap_exec(ctx, NULL, "STARTTLS") != RESP_OK) |
684ec6c6 RS |
1103 | goto bail; |
1104 | if (ssl_socket_connect(&imap->buf.sock, 1, | |
1105 | srvc->ssl_verify)) | |
1106 | goto bail; | |
1107 | /* capabilities may have changed, so get the new capabilities */ | |
d27da38a | 1108 | if (imap_exec(ctx, NULL, "CAPABILITY") != RESP_OK) |
684ec6c6 RS |
1109 | goto bail; |
1110 | } | |
1111 | #endif | |
95c53908 | 1112 | imap_info("Logging in...\n"); |
f2561fda | 1113 | if (!srvc->user) { |
95c53908 | 1114 | fprintf(stderr, "Skipping server %s, no user\n", srvc->host); |
f2561fda MM |
1115 | goto bail; |
1116 | } | |
1117 | if (!srvc->pass) { | |
50d0158f JK |
1118 | struct strbuf prompt = STRBUF_INIT; |
1119 | strbuf_addf(&prompt, "Password (%s@%s): ", srvc->user, srvc->host); | |
1120 | arg = git_getpass(prompt.buf); | |
1121 | strbuf_release(&prompt); | |
f2561fda | 1122 | if (!*arg) { |
95c53908 | 1123 | fprintf(stderr, "Skipping account %s@%s, no password\n", srvc->user, srvc->host); |
f2561fda MM |
1124 | goto bail; |
1125 | } | |
1126 | /* | |
1127 | * getpass() returns a pointer to a static buffer. make a copy | |
1128 | * for long term storage. | |
1129 | */ | |
95c53908 | 1130 | srvc->pass = xstrdup(arg); |
f2561fda MM |
1131 | } |
1132 | if (CAP(NOLOGIN)) { | |
95c53908 | 1133 | fprintf(stderr, "Skipping account %s@%s, server forbids LOGIN\n", srvc->user, srvc->host); |
f2561fda MM |
1134 | goto bail; |
1135 | } | |
ae9c606e HM |
1136 | |
1137 | if (srvc->auth_method) { | |
1138 | struct imap_cmd_cb cb; | |
1139 | ||
1140 | if (!strcmp(srvc->auth_method, "CRAM-MD5")) { | |
1141 | if (!CAP(AUTH_CRAM_MD5)) { | |
1142 | fprintf(stderr, "You specified" | |
1143 | "CRAM-MD5 as authentication method, " | |
1144 | "but %s doesn't support it.\n", srvc->host); | |
1145 | goto bail; | |
1146 | } | |
1147 | /* CRAM-MD5 */ | |
1148 | ||
1149 | memset(&cb, 0, sizeof(cb)); | |
1150 | cb.cont = auth_cram_md5; | |
1151 | if (imap_exec(ctx, &cb, "AUTHENTICATE CRAM-MD5") != RESP_OK) { | |
1152 | fprintf(stderr, "IMAP error: AUTHENTICATE CRAM-MD5 failed\n"); | |
1153 | goto bail; | |
1154 | } | |
1155 | } else { | |
1156 | fprintf(stderr, "Unknown authentication method:%s\n", srvc->host); | |
1157 | goto bail; | |
1158 | } | |
1159 | } else { | |
10439d89 CW |
1160 | if (!imap->buf.sock.ssl) |
1161 | imap_warn("*** IMAP Warning *** Password is being " | |
1162 | "sent in the clear\n"); | |
ae9c606e HM |
1163 | if (imap_exec(ctx, NULL, "LOGIN \"%s\" \"%s\"", srvc->user, srvc->pass) != RESP_OK) { |
1164 | fprintf(stderr, "IMAP error: LOGIN failed\n"); | |
1165 | goto bail; | |
1166 | } | |
f2561fda MM |
1167 | } |
1168 | } /* !preauth */ | |
1169 | ||
1170 | ctx->prefix = ""; | |
fe47e1df | 1171 | return ctx; |
f2561fda | 1172 | |
9f1ad541 | 1173 | bail: |
fe47e1df | 1174 | imap_close_store(ctx); |
5142db69 | 1175 | return NULL; |
f2561fda MM |
1176 | } |
1177 | ||
3691031c MH |
1178 | /* |
1179 | * Insert CR characters as necessary in *msg to ensure that every LF | |
1180 | * character in *msg is preceded by a CR. | |
1181 | */ | |
f035ab62 | 1182 | static void lf_to_crlf(struct strbuf *msg) |
f2561fda | 1183 | { |
67d17630 | 1184 | char *new; |
3691031c MH |
1185 | size_t i, j; |
1186 | char lastc; | |
1187 | ||
1188 | /* First pass: tally, in j, the size of the new string: */ | |
1189 | for (i = j = 0, lastc = '\0'; i < msg->len; i++) { | |
1190 | if (msg->buf[i] == '\n' && lastc != '\r') | |
1191 | j++; /* a CR will need to be added here */ | |
1192 | lastc = msg->buf[i]; | |
1193 | j++; | |
f2561fda | 1194 | } |
67d17630 | 1195 | |
3691031c MH |
1196 | new = xmalloc(j + 1); |
1197 | ||
1198 | /* | |
1199 | * Second pass: write the new string. Note that this loop is | |
1200 | * otherwise identical to the first pass. | |
1201 | */ | |
1202 | for (i = j = 0, lastc = '\0'; i < msg->len; i++) { | |
1203 | if (msg->buf[i] == '\n' && lastc != '\r') | |
67d17630 | 1204 | new[j++] = '\r'; |
3691031c | 1205 | lastc = new[j++] = msg->buf[i]; |
f2561fda | 1206 | } |
3691031c | 1207 | strbuf_attach(msg, new, j, j + 1); |
67d17630 | 1208 | } |
f2561fda | 1209 | |
f035ab62 MH |
1210 | /* |
1211 | * Store msg to IMAP. Also detach and free the data from msg->data, | |
1212 | * leaving msg->data empty. | |
1213 | */ | |
fe47e1df | 1214 | static int imap_store_msg(struct imap_store *ctx, struct strbuf *msg) |
f2561fda | 1215 | { |
9f1ad541 | 1216 | struct imap *imap = ctx->imap; |
f2561fda | 1217 | struct imap_cmd_cb cb; |
f2561fda | 1218 | const char *prefix, *box; |
719125c5 | 1219 | int ret; |
f2561fda | 1220 | |
cbc60761 | 1221 | lf_to_crlf(msg); |
95c53908 | 1222 | memset(&cb, 0, sizeof(cb)); |
f2561fda | 1223 | |
cbc60761 MH |
1224 | cb.dlen = msg->len; |
1225 | cb.data = strbuf_detach(msg, NULL); | |
f2561fda | 1226 | |
636fd66b | 1227 | box = ctx->name; |
3a7cba95 JK |
1228 | prefix = !strcmp(box, "INBOX") ? "" : ctx->prefix; |
1229 | cb.create = 0; | |
719125c5 | 1230 | ret = imap_exec_m(ctx, &cb, "APPEND \"%s%s\" ", prefix, box); |
f2561fda MM |
1231 | imap->caps = imap->rcaps; |
1232 | if (ret != DRV_OK) | |
1233 | return ret; | |
f2561fda MM |
1234 | |
1235 | return DRV_OK; | |
1236 | } | |
1237 | ||
f035ab62 | 1238 | static void wrap_in_html(struct strbuf *msg) |
c64d84f1 JW |
1239 | { |
1240 | struct strbuf buf = STRBUF_INIT; | |
c64d84f1 JW |
1241 | static char *content_type = "Content-Type: text/html;\n"; |
1242 | static char *pre_open = "<pre>\n"; | |
1243 | static char *pre_close = "</pre>\n"; | |
118a68f9 MH |
1244 | const char *body = strstr(msg->buf, "\n\n"); |
1245 | ||
1246 | if (!body) | |
1247 | return; /* Headers but no body; no wrapping needed */ | |
1248 | ||
1249 | body += 2; | |
1250 | ||
1251 | strbuf_add(&buf, msg->buf, body - msg->buf - 1); | |
1252 | strbuf_addstr(&buf, content_type); | |
1253 | strbuf_addch(&buf, '\n'); | |
1254 | strbuf_addstr(&buf, pre_open); | |
1255 | strbuf_addstr_xml_quoted(&buf, body); | |
c64d84f1 | 1256 | strbuf_addstr(&buf, pre_close); |
118a68f9 | 1257 | |
f035ab62 MH |
1258 | strbuf_release(msg); |
1259 | *msg = buf; | |
c64d84f1 JW |
1260 | } |
1261 | ||
f2561fda MM |
1262 | #define CHUNKSIZE 0x1000 |
1263 | ||
3a34e626 | 1264 | static int read_message(FILE *f, struct strbuf *all_msgs) |
f2561fda | 1265 | { |
635d043f | 1266 | do { |
3a34e626 | 1267 | if (strbuf_fread(all_msgs, CHUNKSIZE, f) <= 0) |
f2561fda | 1268 | break; |
635d043f PH |
1269 | } while (!feof(f)); |
1270 | ||
6360bee4 | 1271 | return ferror(f) ? -1 : 0; |
f2561fda MM |
1272 | } |
1273 | ||
3a34e626 | 1274 | static int count_messages(struct strbuf *all_msgs) |
f2561fda MM |
1275 | { |
1276 | int count = 0; | |
3a34e626 | 1277 | char *p = all_msgs->buf; |
f2561fda MM |
1278 | |
1279 | while (1) { | |
1968d77d | 1280 | if (!prefixcmp(p, "From ")) { |
4916c8f9 RR |
1281 | p = strstr(p+5, "\nFrom: "); |
1282 | if (!p) break; | |
1283 | p = strstr(p+7, "\nDate: "); | |
1284 | if (!p) break; | |
1285 | p = strstr(p+7, "\nSubject: "); | |
1286 | if (!p) break; | |
1287 | p += 10; | |
f2561fda | 1288 | count++; |
f2561fda | 1289 | } |
95c53908 | 1290 | p = strstr(p+5, "\nFrom "); |
f2561fda MM |
1291 | if (!p) |
1292 | break; | |
1293 | p++; | |
1294 | } | |
1295 | return count; | |
1296 | } | |
1297 | ||
f035ab62 MH |
1298 | /* |
1299 | * Copy the next message from all_msgs, starting at offset *ofs, to | |
1300 | * msg. Update *ofs to the start of the following message. Return | |
1301 | * true iff a message was successfully copied. | |
1302 | */ | |
1303 | static int split_msg(struct strbuf *all_msgs, struct strbuf *msg, int *ofs) | |
f2561fda MM |
1304 | { |
1305 | char *p, *data; | |
f035ab62 | 1306 | size_t len; |
f2561fda | 1307 | |
f2561fda MM |
1308 | if (*ofs >= all_msgs->len) |
1309 | return 0; | |
1310 | ||
3a34e626 | 1311 | data = &all_msgs->buf[*ofs]; |
f035ab62 | 1312 | len = all_msgs->len - *ofs; |
f2561fda | 1313 | |
f035ab62 | 1314 | if (len < 5 || prefixcmp(data, "From ")) |
f2561fda MM |
1315 | return 0; |
1316 | ||
95c53908 | 1317 | p = strchr(data, '\n'); |
e0b08307 | 1318 | if (p) { |
f035ab62 MH |
1319 | p++; |
1320 | len -= p - data; | |
1321 | *ofs += p - data; | |
e0b08307 MA |
1322 | data = p; |
1323 | } | |
1324 | ||
95c53908 | 1325 | p = strstr(data, "\nFrom "); |
f2561fda | 1326 | if (p) |
f035ab62 | 1327 | len = &p[1] - data; |
f2561fda | 1328 | |
f035ab62 MH |
1329 | strbuf_add(msg, data, len); |
1330 | *ofs += len; | |
a6080a0a | 1331 | return 1; |
f2561fda MM |
1332 | } |
1333 | ||
f2561fda MM |
1334 | static char *imap_folder; |
1335 | ||
95c53908 | 1336 | static int git_imap_config(const char *key, const char *val, void *cb) |
f2561fda MM |
1337 | { |
1338 | char imap_key[] = "imap."; | |
1339 | ||
95c53908 | 1340 | if (strncmp(key, imap_key, sizeof imap_key - 1)) |
f2561fda | 1341 | return 0; |
3c17c34a | 1342 | |
f2561fda MM |
1343 | key += sizeof imap_key - 1; |
1344 | ||
ace706e2 JH |
1345 | /* check booleans first, and barf on others */ |
1346 | if (!strcmp("sslverify", key)) | |
1347 | server.ssl_verify = git_config_bool(key, val); | |
1348 | else if (!strcmp("preformattedhtml", key)) | |
1349 | server.use_html = git_config_bool(key, val); | |
1350 | else if (!val) | |
1351 | return config_error_nonbool(key); | |
1352 | ||
95c53908 RS |
1353 | if (!strcmp("folder", key)) { |
1354 | imap_folder = xstrdup(val); | |
1355 | } else if (!strcmp("host", key)) { | |
684ec6c6 RS |
1356 | if (!prefixcmp(val, "imap:")) |
1357 | val += 5; | |
1358 | else if (!prefixcmp(val, "imaps:")) { | |
1359 | val += 6; | |
1360 | server.use_ssl = 1; | |
f2561fda | 1361 | } |
1968d77d | 1362 | if (!prefixcmp(val, "//")) |
f2561fda | 1363 | val += 2; |
95c53908 | 1364 | server.host = xstrdup(val); |
9f1ad541 | 1365 | } else if (!strcmp("user", key)) |
95c53908 RS |
1366 | server.user = xstrdup(val); |
1367 | else if (!strcmp("pass", key)) | |
1368 | server.pass = xstrdup(val); | |
1369 | else if (!strcmp("port", key)) | |
1370 | server.port = git_config_int(key, val); | |
1371 | else if (!strcmp("tunnel", key)) | |
1372 | server.tunnel = xstrdup(val); | |
ae9c606e HM |
1373 | else if (!strcmp("authmethod", key)) |
1374 | server.auth_method = xstrdup(val); | |
1375 | ||
f2561fda MM |
1376 | return 0; |
1377 | } | |
1378 | ||
95c53908 | 1379 | int main(int argc, char **argv) |
f2561fda | 1380 | { |
3a34e626 | 1381 | struct strbuf all_msgs = STRBUF_INIT; |
cbc60761 | 1382 | struct strbuf msg = STRBUF_INIT; |
fe47e1df | 1383 | struct imap_store *ctx = NULL; |
f2561fda MM |
1384 | int ofs = 0; |
1385 | int r; | |
1386 | int total, n = 0; | |
a0406b94 | 1387 | int nongit_ok; |
f2561fda | 1388 | |
2fb3f6db | 1389 | git_extract_argv0_path(argv[0]); |
f2561fda | 1390 | |
5e9637c6 ÆAB |
1391 | git_setup_gettext(); |
1392 | ||
9a2861e3 JN |
1393 | if (argc != 1) |
1394 | usage(imap_send_usage); | |
f2561fda | 1395 | |
a0406b94 | 1396 | setup_git_directory_gently(&nongit_ok); |
ef90d6d4 | 1397 | git_config(git_imap_config, NULL); |
f2561fda | 1398 | |
684ec6c6 RS |
1399 | if (!server.port) |
1400 | server.port = server.use_ssl ? 993 : 143; | |
f2561fda MM |
1401 | |
1402 | if (!imap_folder) { | |
95c53908 | 1403 | fprintf(stderr, "no imap store specified\n"); |
f2561fda MM |
1404 | return 1; |
1405 | } | |
5b67b8e2 | 1406 | if (!server.host) { |
34b5cd1f | 1407 | if (!server.tunnel) { |
95c53908 | 1408 | fprintf(stderr, "no imap host specified\n"); |
34b5cd1f JK |
1409 | return 1; |
1410 | } | |
1411 | server.host = "tunnel"; | |
5b67b8e2 | 1412 | } |
f2561fda MM |
1413 | |
1414 | /* read the messages */ | |
6360bee4 MH |
1415 | if (read_message(stdin, &all_msgs)) { |
1416 | fprintf(stderr, "error reading input\n"); | |
1417 | return 1; | |
1418 | } | |
1419 | ||
1420 | if (all_msgs.len == 0) { | |
9f1ad541 | 1421 | fprintf(stderr, "nothing to send\n"); |
f2561fda MM |
1422 | return 1; |
1423 | } | |
1424 | ||
95c53908 | 1425 | total = count_messages(&all_msgs); |
1cd88cc9 | 1426 | if (!total) { |
9f1ad541 | 1427 | fprintf(stderr, "no messages to send\n"); |
f2561fda MM |
1428 | return 1; |
1429 | } | |
1430 | ||
1431 | /* write it to the imap server */ | |
95c53908 | 1432 | ctx = imap_open_store(&server); |
f2561fda | 1433 | if (!ctx) { |
9f1ad541 | 1434 | fprintf(stderr, "failed to open store\n"); |
f2561fda MM |
1435 | return 1; |
1436 | } | |
1437 | ||
9f1ad541 | 1438 | fprintf(stderr, "sending %d message%s\n", total, (total != 1) ? "s" : ""); |
636fd66b | 1439 | ctx->name = imap_folder; |
f2561fda MM |
1440 | while (1) { |
1441 | unsigned percent = n * 100 / total; | |
f035ab62 | 1442 | |
95c53908 | 1443 | fprintf(stderr, "%4u%% (%d/%d) done\r", percent, n, total); |
cbc60761 | 1444 | if (!split_msg(&all_msgs, &msg, &ofs)) |
f2561fda | 1445 | break; |
c64d84f1 | 1446 | if (server.use_html) |
cbc60761 | 1447 | wrap_in_html(&msg); |
3a7cba95 | 1448 | r = imap_store_msg(ctx, &msg); |
9f1ad541 | 1449 | if (r != DRV_OK) |
f2561fda | 1450 | break; |
f2561fda MM |
1451 | n++; |
1452 | } | |
95c53908 | 1453 | fprintf(stderr, "\n"); |
f2561fda | 1454 | |
95c53908 | 1455 | imap_close_store(ctx); |
f2561fda MM |
1456 | |
1457 | return 0; | |
1458 | } |