1 /*@ S-nail - a mail user agent derived from Berkeley Mail.
2 *@ All sorts of `reply', `resend', `forward', and similar user commands.
4 * Copyright (c) 2000-2004 Gunnar Ritter, Freiburg i. Br., Germany.
5 * Copyright (c) 2012 - 2017 Steffen (Daode) Nurpmeso <steffen@sdaoden.eu>.
8 * Copyright (c) 1980, 1993
9 * The Regents of the University of California. All rights reserved.
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
14 * 1. Redistributions of source code must retain the above copyright
15 * notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 * notice, this list of conditions and the following disclaimer in the
18 * documentation and/or other materials provided with the distribution.
19 * 3. Neither the name of the University nor the names of its contributors
20 * may be used to endorse or promote products derived from this software
21 * without specific prior written permission.
23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
36 #define n_FILE cmd_resend
38 #ifndef HAVE_AMALGAMATION
42 /* Modify subject we reply to to begin with Re: if it does not already */
43 static char *a_crese_reedit(char const *subj
);
45 static void make_ref_and_cs(struct message
*mp
, struct header
*head
);
47 /* `reply' and `Lreply' workhorse */
48 static int _list_reply(int *msgvec
, enum header_flags hf
);
50 /* Get PTF to implementation of command c (i.e., take care for *flipr*) */
51 static int (* _reply_or_Reply(char c
))(int *, bool_t
);
53 /* Reply to a single message. Extract each name from the message header and
54 * send them off to mail1() */
55 static int _reply(int *msgvec
, bool_t recipient_record
);
57 /* Reply to a series of messages by simply mailing to the senders and not
58 * messing around with the To: and Cc: lists as in normal reply */
59 static int _Reply(int *msgvec
, bool_t recipient_record
);
61 /* Forward a message to a new recipient, in the sense of RFC 2822 */
62 static int _fwd(char *str
, int recipient_record
);
64 /* Modify the subject we are replying to to begin with Fwd: */
65 static char * __fwdedit(char *subj
);
67 /* Do the real work of resending */
68 static int _resend1(void *v
, bool_t add_resent
);
71 a_crese_reedit(char const *subj
){
77 if(subj
!= NULL
&& *subj
!= '\0'){
82 in
.l
= strlen(in
.s
= n_UNCONST(subj
));
83 mime_fromhdr(&in
, &out
, TD_ISPR
| TD_ICONV
);
85 i
= strlen(cp
= subject_re_trim(out
.s
)) +1;
86 /* RFC mandates english "Re: " */
87 newsubj
= salloc(sizeof("Re: ") -1 + i
);
88 memcpy(newsubj
, "Re: ", sizeof("Re: ") -1);
89 memcpy(&newsubj
[sizeof("Re: ") -1], cp
, i
);
98 make_ref_and_cs(struct message
*mp
, struct header
*head
) /* TODO rewrite FAST */
100 char *oldref
, *oldmsgid
, *newref
, *cp
;
101 size_t oldreflen
= 0, oldmsgidlen
= 0, reflen
;
106 oldref
= hfield1("references", mp
);
107 oldmsgid
= hfield1("message-id", mp
);
108 if (oldmsgid
== NULL
|| *oldmsgid
== '\0') {
115 oldreflen
= strlen(oldref
);
116 reflen
+= oldreflen
+ 2;
119 oldmsgidlen
= strlen(oldmsgid
);
120 reflen
+= oldmsgidlen
;
123 newref
= smalloc(reflen
);
124 if (oldref
!= NULL
) {
125 memcpy(newref
, oldref
, oldreflen
+1);
126 if (oldmsgid
!= NULL
) {
127 newref
[oldreflen
++] = ',';
128 newref
[oldreflen
++] = ' ';
129 memcpy(newref
+ oldreflen
, oldmsgid
, oldmsgidlen
+1);
132 memcpy(newref
, oldmsgid
, oldmsgidlen
+1);
133 n
= extract(newref
, GREF
);
136 /* Limit number of references TODO better on parser side */
137 while (n
->n_flink
!= NULL
)
139 for (i
= 1; i
<= REFERENCES_MAX
; ++i
) {
140 if (n
->n_blink
!= NULL
)
147 if (ok_blook(reply_in_same_charset
) &&
148 (cp
= hfield1("content-type", mp
)) != NULL
){
149 if((head
->h_charset
= cp
= mime_param_get("charset", cp
)) != NULL
){
152 for(cpo
= cp
; (c
= *cpo
) != '\0'; ++cpo
)
155 head
->h_charset
= n_charsetalias_expand(cp
);
163 _list_reply(int *msgvec
, enum header_flags hf
)
167 char const *reply_to
, *rcv
, *cp
;
169 struct name
*rt
, *mft
, *np
;
173 /* TODO Since we may recur and do stuff with message lists we need to save
174 * TODO away the argument vector as long as that isn't done by machinery */
177 for (i
= 0; msgvec
[i
] != 0; ++i
)
180 save_msgvec
= ac_alloc(sizeof(*save_msgvec
) * i
);
182 save_msgvec
[i
] = msgvec
[i
];
183 msgvec
= save_msgvec
;
187 mp
= message
+ *msgvec
- 1;
191 memset(&head
, 0, sizeof head
);
194 head
.h_subject
= a_crese_reedit(hfield1("subject", mp
));
195 gf
= ok_blook(fullnames
) ? GFULL
: GSKIN
;
199 if ((reply_to
= hfield1("reply-to", mp
)) != NULL
&&
200 (cp
= ok_vlook(reply_to_honour
)) != NULL
&&
201 (rt
= checkaddrs(lextract(reply_to
, GTO
| gf
), EACM_STRICT
, NULL
)
203 char const *tr
= _("Reply-To %s%s");
204 size_t l
= strlen(tr
) + strlen(rt
->n_name
) + 3 +1;
205 char *sp
= salloc(l
);
207 snprintf(sp
, l
, tr
, rt
->n_name
, (rt
->n_flink
!= NULL
? "..." : n_empty
));
208 if (quadify(cp
, UIZ_MAX
, sp
, TRU1
) > FAL0
)
212 if (rcv
== NULL
&& (rcv
= hfield1("from", mp
)) == NULL
)
217 if (ok_blook(recipients_in_cc
) && (cp
= hfield1("to", mp
)) != NULL
)
218 np
= lextract(cp
, GCC
| gf
);
219 if ((cp
= hfield1("cc", mp
)) != NULL
)
220 np
= cat(np
, lextract(cp
, GCC
| gf
));
222 head
.h_cc
= delete_alternates(np
);
227 np
= (rcv
== reply_to
) ? namelist_dup(rt
, GTO
| gf
)
228 : lextract(rcv
, GTO
| gf
);
229 if (!ok_blook(recipients_in_cc
) && (cp
= hfield1("to", mp
)) != NULL
)
230 np
= cat(np
, lextract(cp
, GTO
| gf
));
231 /* Delete my name from reply list, and with it, all my alternate names */
232 np
= delete_alternates(np
);
234 np
= lextract(rcv
, GTO
| gf
);
237 /* The user may have send this to himself, don't ignore that */
238 namelist_vaporise_head(&head
, EACM_NORMAL
, FAL0
, NULL
);
239 if (head
.h_to
== NULL
)
242 /* Mail-Followup-To: */
244 if (ok_vlook(followup_to_honour
) != NULL
&&
245 (cp
= hfield1("mail-followup-to", mp
)) != NULL
&&
246 (mft
= np
= checkaddrs(lextract(cp
, GTO
| gf
), EACM_STRICT
, NULL
)
248 char const *tr
= _("Followup-To %s%s");
249 size_t l
= strlen(tr
) + strlen(np
->n_name
) + 3 +1;
250 char *sp
= salloc(l
);
252 snprintf(sp
, l
, tr
, np
->n_name
, (np
->n_flink
!= NULL
? "..." : n_empty
));
253 if (quadify(ok_vlook(followup_to_honour
), UIZ_MAX
, sp
, TRU1
) > FAL0
) {
257 mft
= namelist_vaporise_head(&head
, EACM_STRICT
, FAL0
, NULL
);
262 /* Special massage for list (follow-up) messages */
263 if (mft
!= NULL
|| (hf
& HF_LIST_REPLY
) || ok_blook(followup_to
)) {
264 /* Learn about a possibly sending mailing list; use do for break; */
265 if ((cp
= hfield1("list-post", mp
)) != NULL
) do {
268 if ((x
= lextract(cp
, GEXTRA
| GSKIN
)) == NULL
|| x
->n_flink
!= NULL
||
269 (cp
= url_mailto_to_address(x
->n_name
)) == NULL
||
270 /* XXX terribly wasteful to create a new name, and can't we find
271 * XXX a way to mitigate that?? */
272 is_addr_invalid(x
= nalloc(cp
, GEXTRA
| GSKIN
), EACM_STRICT
)) {
273 if(n_poption
& n_PO_D_V
)
274 n_err(_("Message contains invalid List-Post: header\n"));
280 /* A special case has been seen on e.g. ietf-announce@ietf.org:
281 * these usually post to multiple groups, with ietf-announce@
282 * in List-Post:, but with Reply-To: set to ietf@ietf.org (since
283 * -announce@ is only used for announcements, say).
284 * So our desire is to honour this request and actively overwrite
285 * List-Post: for our purpose; but only if its a single address.
286 * However, to avoid ambiguities with users that place themselve in
287 * Reply-To: and mailing lists which don't overwrite this (or only
288 * extend this, shall such exist), only do so if reply_to exists of
289 * a single address which points to the same domain as List-Post: */
290 if (reply_to
!= NULL
&& rt
->n_flink
== NULL
&&
291 name_is_same_domain(x
, rt
))
292 cp
= rt
->n_name
; /* rt is EACM_STRICT tested */
294 /* "Automatically `mlist'" the List-Post: address temporarily */
295 if (is_mlist(cp
, FAL0
) == MLIST_OTHER
)
296 head
.h_list_post
= cp
;
301 /* In case of list replies we actively sort out any non-list recipient,
302 * but _only_ if we did not honour a MFT:, assuming that members of MFT
303 * were there for a reason; cp is still List-Post:/eqivalent */
304 if ((hf
& HF_LIST_REPLY
) && mft
== NULL
) {
305 struct name
*nhp
= head
.h_to
;
308 while (nhp
!= NULL
) {
312 if ((cp
!= NULL
&& !asccasecmp(cp
, np
->n_name
)) ||
313 is_mlist(np
->n_name
, FAL0
) != MLIST_OTHER
) {
314 np
->n_type
= (np
->n_type
& ~GMASK
) | GTO
;
315 np
->n_flink
= head
.h_to
;
319 if ((nhp
= head
.h_cc
) != NULL
) {
326 make_ref_and_cs(mp
, &head
);
328 if (ok_blook(quote_as_attachment
)) {
329 head
.h_attach
= csalloc(1, sizeof *head
.h_attach
);
330 head
.h_attach
->a_msgno
= *msgvec
;
331 head
.h_attach
->a_content_description
= _("Original message content");
334 if (mail1(&head
, 1, mp
, NULL
, !!(hf
& HF_RECIPIENT_RECORD
), 0) != OKAY
) {
338 if(ok_blook(markanswered
) && !(mp
->m_flag
& MANSWERED
))
339 mp
->m_flag
|= MANSWER
| MANSWERED
;
341 if (*++msgvec
!= 0) {
342 /* TODO message (error) ring.., less sleep */
343 if(n_psonce
& n_PSO_INTERACTIVE
){
345 _("Waiting a second before proceeding to the next message..\n"));
347 n_msleep(1000, FAL0
);
353 ac_free(save_msgvec
);
355 return (msgvec
== NULL
);
359 (*_reply_or_Reply(char c
))(int *, bool_t
)
361 int (*rv
)(int*, bool_t
);
364 rv
= (ok_blook(flipr
) ^ (c
== 'R')) ? &_Reply
: &_reply
;
370 _reply(int *msgvec
, bool_t recipient_record
)
375 rv
= _list_reply(msgvec
, recipient_record
? HF_RECIPIENT_RECORD
: HF_NONE
);
381 _Reply(int *msgvec
, bool_t recipient_record
)
390 memset(&head
, 0, sizeof head
);
391 gf
= ok_blook(fullnames
) ? GFULL
: GSKIN
;
393 for (ap
= msgvec
; *ap
!= 0; ++ap
) {
397 mp
= message
+ *ap
- 1;
401 if ((rp
= hfield1("reply-to", mp
)) != NULL
&&
402 (cp
= ok_vlook(reply_to_honour
)) != NULL
&&
403 (rt
= checkaddrs(lextract(rp
, GTO
| gf
), EACM_STRICT
, NULL
)
405 char const *tr
= _("Reply-To %s%s");
406 size_t l
= strlen(tr
) + strlen(rt
->n_name
) + 3 +1;
407 char *sp
= salloc(l
);
409 snprintf(sp
, l
, tr
, rt
->n_name
, (rt
->n_flink
!= NULL
? "..."
411 if (quadify(cp
, UIZ_MAX
, sp
, TRU1
) > FAL0
) {
412 head
.h_to
= cat(head
.h_to
, rt
);
417 if ((cp
= hfield1("from", mp
)) == NULL
)
419 head
.h_to
= cat(head
.h_to
, lextract(cp
, GTO
| gf
));
421 if (head
.h_to
== NULL
)
424 mp
= message
+ msgvec
[0] - 1;
425 head
.h_subject
= hfield1("subject", mp
);
426 head
.h_subject
= a_crese_reedit(head
.h_subject
);
427 make_ref_and_cs(mp
, &head
);
429 if (ok_blook(quote_as_attachment
)) {
430 head
.h_attach
= csalloc(1, sizeof *head
.h_attach
);
431 head
.h_attach
->a_msgno
= *msgvec
;
432 head
.h_attach
->a_content_description
= _("Original message content");
435 if (mail1(&head
, 1, mp
, NULL
, recipient_record
, 0) != OKAY
) {
440 if(ok_blook(markanswered
) && !(mp
->m_flag
& MANSWERED
))
441 mp
->m_flag
|= MANSWER
| MANSWERED
;
444 return (msgvec
== NULL
);
448 _fwd(char *str
, int recipient_record
)
454 bool_t f
, forward_as_attachment
;
457 if ((recipient
= laststring(str
, &f
, TRU1
)) == NULL
) {
458 fputs(_("No recipient specified.\n"), n_stdout
);
462 forward_as_attachment
= ok_blook(forward_as_attachment
);
463 msgvec
= salloc((msgCount
+ 2) * sizeof *msgvec
);
466 *msgvec
= first(0, MMNORM
);
468 if (n_pstate
& (n_PS_HOOK_MASK
| n_PS_ROBOT
)) {
472 fprintf(n_stdout
, _("No messages to forward.\n"));
476 } else if (getmsglist(str
, msgvec
, 0) < 0)
480 if (n_pstate
& (n_PS_HOOK_MASK
| n_PS_ROBOT
)) {
484 fprintf(n_stdout
, _("No applicable messages.\n"));
487 if (msgvec
[1] != 0) {
488 fprintf(n_stdout
, _("Cannot forward multiple messages at once\n"));
492 memset(&head
, 0, sizeof head
);
493 if ((head
.h_to
= lextract(recipient
,
494 (GTO
| (ok_blook(fullnames
) ? GFULL
: GSKIN
)))) == NULL
)
497 mp
= message
+ *msgvec
- 1;
499 if (forward_as_attachment
) {
500 head
.h_attach
= csalloc(1, sizeof *head
.h_attach
);
501 head
.h_attach
->a_msgno
= *msgvec
;
502 head
.h_attach
->a_content_description
= _("Forwarded message");
507 head
.h_subject
= hfield1("subject", mp
);
508 head
.h_subject
= __fwdedit(head
.h_subject
);
509 rv
= (mail1(&head
, 1, (forward_as_attachment
? NULL
: mp
), NULL
,
510 recipient_record
, 1) != OKAY
); /* reverse! */
517 __fwdedit(char *subj
)
520 char *newsubj
= NULL
;
523 if (subj
== NULL
|| *subj
== '\0')
528 mime_fromhdr(&in
, &out
, TD_ISPR
| TD_ICONV
);
530 newsubj
= salloc(out
.l
+ 6);
531 memcpy(newsubj
, "Fwd: ", 5); /* XXX localizable */
532 memcpy(newsubj
+ 5, out
.s
, out
.l
+1);
540 _resend1(void *v
, bool_t add_resent
)
543 struct name
*to
, *sn
;
549 msgvec
= salloc((msgCount
+ 2) * sizeof *msgvec
);
550 name
= laststring(str
, &f
, TRU1
);
552 fputs(_("No recipient specified.\n"), n_stdout
);
557 *msgvec
= first(0, MMNORM
);
559 if (n_pstate
& (n_PS_HOOK_MASK
| n_PS_ROBOT
)) {
563 fputs(_("No applicable messages.\n"), n_stdout
);
567 } else if (getmsglist(str
, msgvec
, 0) < 0)
571 if (n_pstate
& (n_PS_HOOK_MASK
| n_PS_ROBOT
)) {
575 fprintf(n_stdout
, "No applicable messages.\n");
579 sn
= nalloc(name
, GTO
| GSKIN
);
580 to
= usermap(sn
, FAL0
);
582 for (ip
= msgvec
; *ip
!= 0 && UICMP(z
, PTR2SIZE(ip
- msgvec
), <, msgCount
);
584 if (resend_msg(message
+ *ip
- 1, to
, add_resent
) != OKAY
)
598 rv
= (*_reply_or_Reply('r'))(v
, FAL0
);
609 rv
= _reply(v
, FAL0
);
615 c_replysender(void *v
)
620 rv
= _Reply(v
, FAL0
);
631 rv
= (*_reply_or_Reply('R'))(v
, FAL0
);
642 rv
= _list_reply(v
, HF_LIST_REPLY
);
653 rv
= (*_reply_or_Reply('r'))(v
, TRU1
);
659 c_followupall(void *v
)
664 rv
= _reply(v
, TRU1
);
670 c_followupsender(void *v
)
675 rv
= _Reply(v
, TRU1
);
686 rv
= (*_reply_or_Reply('R'))(v
, TRU1
);
719 rv
= _resend1(v
, TRU1
);
730 rv
= _resend1(v
, FAL0
);