cmd-resend.c

   1 /*@ S-nail - a mail user agent derived from Berkeley Mail.
   2  *@ All sorts of `reply', `resend', `forward', and similar user commands.
   3  *
   4  * Copyright (c) 2000-2004 Gunnar Ritter, Freiburg i. Br., Germany.
   5  * Copyright (c) 2012 - 2017 Steffen (Daode) Nurpmeso <steffen@sdaoden.eu>.
   6  */
   7 /*
   8  * Copyright (c) 1980, 1993
   9  *      The Regents of the University of California.  All rights reserved.
  10  *
  11  * Redistribution and use in source and binary forms, with or without
  12  * modification, are permitted provided that the following conditions
  13  * are met:
  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.
  22  *
  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
  33  * SUCH DAMAGE.
  34  */
  35 #undef n_FILE
  36 #define n_FILE cmd_resend
  37
  38 #ifndef HAVE_AMALGAMATION
  39 # include "nail.h"
  40 #endif
  41
  42 /* Modify subject we reply to to begin with Re: if it does not already */
  43 static char *a_crese_reedit(char const *subj);
  44
  45 /* Fetch these headers, as appropriate */
  46 static struct name *a_crese_reply_to(struct message *mp);
  47 static struct name *a_crese_mail_followup_to(struct message *mp);
  48
  49 /* We honoured Reply-To: and/or Mail-Followup-To:, but *recipients-in-cc* is
  50  * set so try to keep "secondary" addressees in Cc:, if possible, */
  51 static void a_crese_polite_rt_mft_move(struct message *mp, struct header *hp,
  52                      struct name *np);
  53
  54 /* References and charset, as appropriate */
  55 static void a_crese_make_ref_and_cs(struct message *mp, struct header *head);
  56
  57 /* `reply' and `Lreply' workhorse */
  58 static int a_crese_list_reply(int *msgvec, enum header_flags hf);
  59
  60 /* Get PTF to implementation of command c (i.e., take care for *flipr*) */
  61 static int (*a_crese_reply_or_Reply(char c))(int *, bool_t);
  62
  63 /* Reply to a single message.  Extract each name from the message header and
  64  * send them off to mail1() */
  65 static int a_crese_reply(int *msgvec, bool_t recipient_record);
  66
  67 /* Reply to a series of messages by simply mailing to the senders and not
  68  * messing around with the To: and Cc: lists as in normal reply */
  69 static int a_crese_Reply(int *msgvec, bool_t recipient_record);
  70
  71 /* Forward a message to a new recipient, in the sense of RFC 2822 */
  72 static int a_crese_fwd(char *str, int recipient_record);
  73
  74 /* Modify the subject we are replying to to begin with Fwd: */
  75 static char *a_crese__fwdedit(char *subj);
  76
  77 /* Do the real work of resending */
  78 static int a_crese_resend1(void *v, bool_t add_resent);
  79
  80 static char *
  81 a_crese_reedit(char const *subj){
  82    char *newsubj;
  83    NYD2_ENTER;
  84
  85    newsubj = NULL;
  86
  87    if(subj != NULL && *subj != '\0'){
  88       struct str in, out;
  89       size_t i;
  90       char const *cp;
  91
  92       in.l = strlen(in.s = n_UNCONST(subj));
  93       mime_fromhdr(&in, &out, TD_ISPR | TD_ICONV);
  94
  95       i = strlen(cp = subject_re_trim(out.s)) +1;
  96       /* RFC mandates english "Re: " */
  97       newsubj = n_autorec_alloc(sizeof("Re: ") -1 + i);
  98       memcpy(newsubj, "Re: ", sizeof("Re: ") -1);
  99       memcpy(&newsubj[sizeof("Re: ") -1], cp, i);
 100
 101       free(out.s);
 102    }
 103    NYD2_LEAVE;
 104    return newsubj;
 105 }
 106
 107 static struct name *
 108 a_crese_reply_to(struct message *mp){
 109    char const *cp, *cp2;
 110    struct name *rt, *np;
 111    enum gfield gf;
 112    NYD2_ENTER;
 113
 114    gf = ok_blook(fullnames) ? GFULL | GSKIN : GSKIN;
 115    rt = NULL;
 116
 117    if((cp = ok_vlook(reply_to_honour)) != NULL &&
 118          (cp2 = hfield1("reply-to", mp)) != NULL &&
 119          (rt = checkaddrs(lextract(cp2, GTO | gf), EACM_STRICT, NULL)) != NULL){
 120       char *sp;
 121       size_t l;
 122       char const *tr;
 123
 124       if((n_psonce & n_PSO_INTERACTIVE) && !(n_pstate & n_PS_ROBOT)){
 125          fprintf(n_stdout, _("Reply-To: header contains:"));
 126          for(np = rt; np != NULL; np = np->n_flink)
 127             fprintf(n_stdout, " %s", np->n_name);
 128          putc('\n', n_stdout);
 129       }
 130
 131       tr = _("Reply-To %s%s");
 132       l = strlen(tr) + strlen(rt->n_name) + 3 +1;
 133       sp = n_lofi_alloc(l);
 134
 135       snprintf(sp, l, tr, rt->n_name, (rt->n_flink != NULL ? "..." : n_empty));
 136       if(quadify(cp, UIZ_MAX, sp, TRU1) <= FAL0)
 137          rt = NULL;
 138
 139       n_lofi_free(sp);
 140    }
 141    NYD2_LEAVE;
 142    return rt;
 143 }
 144
 145 static struct name *
 146 a_crese_mail_followup_to(struct message *mp){
 147    char const *cp, *cp2;
 148    struct name *mft, *np;
 149    enum gfield gf;
 150    NYD2_ENTER;
 151
 152    gf = ok_blook(fullnames) ? GFULL | GSKIN : GSKIN;
 153    mft = NULL;
 154
 155    if((cp = ok_vlook(followup_to_honour)) != NULL &&
 156          (cp2 = hfield1("mail-followup-to", mp)) != NULL &&
 157          (mft = checkaddrs(lextract(cp2, GTO | gf), EACM_STRICT,NULL)) != NULL){
 158       char *sp;
 159       size_t l;
 160       char const *tr;
 161
 162       if((n_psonce & n_PSO_INTERACTIVE) && !(n_pstate & n_PS_ROBOT)){
 163          fprintf(n_stdout, _("Mail-Followup-To: header contains:"));
 164          for(np = mft; np != NULL; np = np->n_flink)
 165             fprintf(n_stdout, " %s", np->n_name);
 166          putc('\n', n_stdout);
 167       }
 168
 169       tr = _("Followup-To %s%s");
 170       l = strlen(tr) + strlen(mft->n_name) + 3 +1;
 171       sp = n_lofi_alloc(l);
 172
 173       snprintf(sp, l, tr, mft->n_name, (mft->n_flink != NULL ? "..." : n_empty));
 174       if(quadify(cp, UIZ_MAX, sp, TRU1) <= FAL0)
 175          mft = NULL;
 176
 177       n_lofi_free(sp);
 178    }
 179    NYD2_LEAVE;
 180    return mft;
 181 }
 182
 183 static void
 184 a_crese_polite_rt_mft_move(struct message *mp, struct header *hp,
 185       struct name *np){
 186    bool_t once;
 187    NYD2_ENTER;
 188    n_UNUSED(mp);
 189
 190    if(np == hp->h_to)
 191       hp->h_to = NULL;
 192    if(np == hp->h_cc)
 193       hp->h_cc = NULL;
 194
 195    /* We may find that in the end To: is empty but Cc: is not, in which case we
 196     * upgrade Cc: to To:, and jump back and redo the thing slightly different */
 197    once = FAL0;
 198 jredo:
 199    while(np != NULL){
 200       enum gfield gf;
 201       struct name *nnp, **xpp, *xp;
 202
 203       nnp = np;
 204       np = np->n_flink;
 205
 206       if(once){
 207          gf = GTO;
 208          xpp = &hp->h_to;
 209       }else{
 210          gf = GCC;
 211          xpp = &hp->h_cc;
 212       }
 213
 214       /* Try primary, then secondary */
 215       for(xp = hp->h_mailx_orig_to; xp != NULL; xp = xp->n_flink)
 216          if(!asccasecmp(xp->n_name, nnp->n_name))
 217             goto jlink;
 218
 219       if(once){
 220          gf = GCC;
 221          xpp = &hp->h_cc;
 222       }
 223
 224       for(xp = hp->h_mailx_orig_cc; xp != NULL; xp = xp->n_flink)
 225          if(!asccasecmp(xp->n_name, nnp->n_name))
 226             goto jlink;
 227
 228       /* If this receiver came in only via R-T: or M-F-T:, place her/him/it in
 229        * To: due to lack of a better place */
 230       gf = GTO;
 231       xpp = &hp->h_to;
 232 jlink:
 233       /* Link it at the end to not loose original sort order */
 234       if((xp = *xpp) != NULL)
 235          while(xp->n_flink != NULL)
 236             xp = xp->n_flink;
 237
 238       if((nnp->n_blink = xp) != NULL)
 239          xp->n_flink = nnp;
 240       else
 241          *xpp = nnp;
 242       nnp->n_flink = NULL;
 243       nnp->n_type = (nnp->n_type & ~GMASK) | gf;
 244    }
 245
 246    /* If afterwards only Cc: data remains, upgrade all of it to To: */
 247    if(hp->h_to == NULL){
 248       np = hp->h_cc;
 249       hp->h_cc = NULL;
 250       if(!once){
 251          hp->h_to = NULL;
 252          once = TRU1;
 253          goto jredo;
 254       }
 255       hp->h_to = np;
 256    }
 257    NYD2_LEAVE;
 258 }
 259
 260 static void
 261 a_crese_make_ref_and_cs(struct message *mp, struct header *head) /* TODO ASAP */
 262 {
 263    char *oldref, *oldmsgid, *newref, *cp;
 264    size_t oldreflen = 0, oldmsgidlen = 0, reflen;
 265    unsigned i;
 266    struct name *n;
 267    NYD2_ENTER;
 268
 269    oldref = hfield1("references", mp);
 270    oldmsgid = hfield1("message-id", mp);
 271    if (oldmsgid == NULL || *oldmsgid == '\0') {
 272       head->h_ref = NULL;
 273       goto jleave;
 274    }
 275
 276    reflen = 1;
 277    if (oldref) {
 278       oldreflen = strlen(oldref);
 279       reflen += oldreflen + 2;
 280    }
 281    if (oldmsgid) {
 282       oldmsgidlen = strlen(oldmsgid);
 283       reflen += oldmsgidlen;
 284    }
 285
 286    newref = smalloc(reflen);
 287    if (oldref != NULL) {
 288       memcpy(newref, oldref, oldreflen +1);
 289       if (oldmsgid != NULL) {
 290          newref[oldreflen++] = ',';
 291          newref[oldreflen++] = ' ';
 292          memcpy(newref + oldreflen, oldmsgid, oldmsgidlen +1);
 293       }
 294    } else if (oldmsgid)
 295       memcpy(newref, oldmsgid, oldmsgidlen +1);
 296    n = extract(newref, GREF);
 297    free(newref);
 298
 299    /* Limit number of references TODO better on parser side */
 300    while (n->n_flink != NULL)
 301       n = n->n_flink;
 302    for (i = 1; i <= REFERENCES_MAX; ++i) {
 303       if (n->n_blink != NULL)
 304          n = n->n_blink;
 305       else
 306          break;
 307    }
 308    n->n_blink = NULL;
 309    head->h_ref = n;
 310    if (ok_blook(reply_in_same_charset) &&
 311          (cp = hfield1("content-type", mp)) != NULL){
 312       if((head->h_charset = cp = mime_param_get("charset", cp)) != NULL){
 313          char *cpo, c;
 314
 315          for(cpo = cp; (c = *cpo) != '\0'; ++cpo)
 316             *cpo = lowerconv(c);
 317
 318          head->h_charset = n_charsetalias_expand(cp);
 319       }
 320    }
 321 jleave:
 322    NYD2_LEAVE;
 323 }
 324
 325 static int
 326 a_crese_list_reply(int *msgvec, enum header_flags hf){
 327    struct header head;
 328    struct message *mp;
 329    char const *cp, *cp2;
 330    enum gfield gf;
 331    struct name *rt, *mft, *np;
 332    int *save_msgvec;
 333    NYD2_ENTER;
 334
 335    n_pstate_err_no = n_ERR_NONE;
 336
 337    /* TODO Since we may recur and do stuff with message lists we need to save
 338     * TODO away the argument vector as long as that isn't done by machinery */
 339    /* C99 */{
 340       size_t i;
 341       for(i = 0; msgvec[i] != 0; ++i)
 342          ;
 343       ++i;
 344       save_msgvec = n_lofi_alloc(sizeof(*save_msgvec) * i);
 345       while(i-- > 0)
 346          save_msgvec[i] = msgvec[i];
 347       msgvec = save_msgvec;
 348    }
 349
 350    gf = ok_blook(fullnames) ? GFULL | GSKIN : GSKIN;
 351
 352 jwork_msg:
 353    n_autorec_relax_create();
 354    mp = &message[*msgvec - 1];
 355    touch(mp);
 356    setdot(mp);
 357
 358    memset(&head, 0, sizeof head);
 359    head.h_flags = hf;
 360    head.h_subject = a_crese_reedit(hfield1("subject", mp));
 361    head.h_mailx_command = (hf & HF_LIST_REPLY) ? "Lreply" : "reply";
 362    head.h_mailx_orig_from = lextract(hfield1("from", mp), GIDENT | gf);
 363    head.h_mailx_orig_to = lextract(hfield1("to", mp), GTO | gf);
 364    head.h_mailx_orig_cc = lextract(hfield1("cc", mp), GCC | gf);
 365    head.h_mailx_orig_bcc = lextract(hfield1("bcc", mp), GBCC | gf);
 366
 367    /* First of all check for Reply-To: then Mail-Followup-To:, because these,
 368     * if honoured, take precedence over anything else.  We will join the
 369     * resulting list together if so desired.
 370     * So if we shall honour R-T: or M-F-T:, then these are our receivers! */
 371    rt = a_crese_reply_to(mp);
 372    mft = a_crese_mail_followup_to(mp);
 373
 374    if(rt != NULL || mft != NULL){
 375       np = cat(rt, mft);
 376       if(mft != NULL)
 377          head.h_mft = namelist_dup(np, GTO | gf); /* xxx GTO: no "clone"! */
 378
 379       /* Optionally do not propagate a receiver that originally was in
 380        * secondary Cc: to the primary To: list */
 381       if(ok_blook(recipients_in_cc)){
 382          a_crese_polite_rt_mft_move(mp, &head, np);
 383
 384          head.h_mailx_raw_cc = namelist_dup(head.h_cc, GCC | gf);
 385          head.h_cc = n_alternates_remove(head.h_cc, FAL0);
 386       }else
 387          head.h_to = np;
 388
 389       head.h_mailx_raw_to = namelist_dup(head.h_to, GTO | gf);
 390       head.h_to = n_alternates_remove(head.h_to, FAL0);
 391 #ifdef HAVE_DEVEL
 392       for(np = head.h_to; np != NULL; np = np->n_flink)
 393          assert((np->n_type & GMASK) == GTO);
 394       for(np = head.h_cc; np != NULL; np = np->n_flink)
 395          assert((np->n_type & GMASK) == GCC);
 396 #endif
 397       goto jrecipients_done;
 398    }
 399
 400    /* Otherwise do the normal From: / To: / Cc: dance */
 401
 402    if((cp2 = hfield1("from", mp)) == NULL)
 403       cp2 = nameof(mp, 1);
 404
 405    /* Cc: */
 406    np = NULL;
 407    if(ok_blook(recipients_in_cc) && (cp = hfield1("to", mp)) != NULL)
 408       np = lextract(cp, GCC | gf);
 409    if((cp = hfield1("cc", mp)) != NULL){
 410       struct name *x;
 411
 412       if((x = lextract(cp, GCC | gf)) != NULL)
 413          np = cat(np, x);
 414    }
 415    if(np != NULL){
 416       head.h_mailx_raw_cc = namelist_dup(np, GCC | gf);
 417       head.h_cc = n_alternates_remove(np, FAL0);
 418    }
 419
 420    /* To: */
 421    np = NULL;
 422    if(cp2 != NULL)
 423       np = lextract(cp2, GTO | gf);
 424    if(!ok_blook(recipients_in_cc) && (cp = hfield1("to", mp)) != NULL){
 425       struct name *x;
 426
 427       if((x = lextract(cp, GTO | gf)) != NULL)
 428          np = cat(np, x);
 429    }
 430    /* Delete my name from reply list, and with it, all my alternate names */
 431    if(np != NULL){
 432       head.h_mailx_raw_to = namelist_dup(np, GTO | gf);
 433       np = n_alternates_remove(np, FAL0);
 434       /* The user may have send this to himself, don't ignore that */
 435       if(count(np) == 0){
 436          np = lextract(cp2, GTO | gf);
 437          head.h_mailx_raw_to = namelist_dup(np, GTO | gf);
 438       }
 439    }
 440    head.h_to = np;
 441
 442 jrecipients_done:
 443
 444    /* For list replies we want to automatically recognize the list address
 445     * given in the List-Post: header, so that we will not throw away a possible
 446     * corresponding receiver: temporarily "`mlist' the List-Post: address" */
 447    if((hf & HF_LIST_REPLY) && (cp = hfield1("list-post", mp)) != NULL){
 448       struct name *x;
 449
 450       if((x = lextract(cp, GEXTRA | GSKIN)) == NULL || x->n_flink != NULL ||
 451             (cp = url_mailto_to_address(x->n_name)) == NULL ||
 452             /* XXX terribly wasteful to create a new name, and can't we find
 453              * XXX a way to mitigate that?? */
 454             is_addr_invalid(x = nalloc(cp, GEXTRA | GSKIN), EACM_STRICT)){
 455          if(n_poption & n_PO_D_V)
 456             n_err(_("Message contains invalid List-Post: header\n"));
 457       }else{
 458          /* A special case has been seen on e.g. ietf-announce@ietf.org:
 459           * these usually post to multiple groups, with ietf-announce@
 460           * in List-Post:, but with Reply-To: set to ietf@ietf.org (since
 461           * -announce@ is only used for announcements, say).
 462           * So our desire is to honour this request and actively overwrite
 463           * List-Post: for our purpose; but only if its a single address.
 464           * However, to avoid ambiguities with users that place themselve in
 465           * Reply-To: and mailing lists which don't overwrite this (or only
 466           * extend this, shall such exist), only do so if reply_to exists of
 467           * a single address which points to the same domain as List-Post: */
 468          if(rt != NULL && rt->n_flink == NULL &&
 469                name_is_same_domain(x, rt))
 470             cp = rt->n_name; /* rt is EACM_STRICT tested */
 471          else
 472             cp = x->n_name;
 473
 474          if(is_mlist(cp, FAL0) == MLIST_OTHER)
 475             head.h_list_post = cp;
 476       }
 477    }
 478
 479    /* In case of list replies we actively sort out any non-list recipient */
 480    if(hf & HF_LIST_REPLY){
 481       struct name **nhpp, *nhp, *tail;
 482
 483       cp = head.h_list_post;
 484
 485       nhp = *(nhpp = &head.h_to);
 486       head.h_to = NULL;
 487 j_lt_redo:
 488       for(tail = NULL; nhp != NULL;){
 489          np = nhp;
 490          nhp = nhp->n_flink;
 491
 492          if((cp != NULL && !asccasecmp(cp, np->n_name)) ||
 493                is_mlist(np->n_name, FAL0) != MLIST_OTHER){
 494             if((np->n_blink = tail) != NULL)
 495                tail->n_flink = np;
 496             else
 497                *nhpp = np;
 498             np->n_flink = NULL;
 499             tail = np;
 500          }
 501       }
 502       if(nhpp == &head.h_to){
 503          nhp = *(nhpp = &head.h_cc);
 504          head.h_cc = NULL;
 505          goto j_lt_redo;
 506       }
 507
 508       /* For `Lreply' only, fail immediately with DESTADDRREQ if there are no
 509        * receivers at all! */
 510       if(head.h_to == NULL && head.h_cc == NULL){
 511          n_err(_("No recipients specified for `Lreply'\n"));
 512          if(msgvec[1] == 0){
 513             n_pstate_err_no = n_ERR_DESTADDRREQ;
 514             msgvec = NULL;
 515             goto jleave;
 516          }
 517          goto jskip_to_next;
 518       }
 519    }
 520
 521    /* Move Cc: to To: as appropriate! */
 522    if(head.h_to == NULL && (np = head.h_cc) != NULL){
 523       head.h_cc = NULL;
 524       for(head.h_to = np; np != NULL; np = np->n_flink)
 525          np->n_type = (np->n_type & ~GMASK) | GTO;
 526    }
 527
 528    a_crese_make_ref_and_cs(mp, &head);
 529
 530    if(ok_blook(quote_as_attachment)){
 531       head.h_attach = csalloc(1, sizeof *head.h_attach);
 532       head.h_attach->a_msgno = *msgvec;
 533       head.h_attach->a_content_description = _("Original message content");
 534    }
 535
 536    if(mail1(&head, 1, mp, NULL, !!(hf & HF_RECIPIENT_RECORD), 0) != OKAY){
 537       msgvec = NULL;
 538       goto jleave;
 539    }
 540    if(ok_blook(markanswered) && !(mp->m_flag & MANSWERED))
 541       mp->m_flag |= MANSWER | MANSWERED;
 542    n_autorec_relax_gut();
 543
 544 jskip_to_next:
 545    if(*++msgvec != 0){
 546       /* TODO message (error) ring.., less sleep */
 547       if(n_psonce & n_PSO_INTERACTIVE){
 548          fprintf(n_stdout,
 549             _("Waiting a second before proceeding to the next message..\n"));
 550          fflush(n_stdout);
 551          n_msleep(1000, FAL0);
 552       }
 553       goto jwork_msg;
 554    }
 555
 556 jleave:
 557    n_lofi_free(save_msgvec);
 558    NYD2_LEAVE;
 559    return (msgvec == NULL);
 560 }
 561
 562 static int
 563 (*a_crese_reply_or_Reply(char c))(int *, bool_t){
 564    int (*rv)(int*, bool_t);
 565    NYD2_ENTER;
 566
 567    rv = (ok_blook(flipr) ^ (c == 'R')) ? &a_crese_Reply : &a_crese_reply;
 568    NYD2_LEAVE;
 569    return rv;
 570 }
 571
 572 static int
 573 a_crese_reply(int *msgvec, bool_t recipient_record){
 574    int rv;
 575    NYD2_ENTER;
 576
 577    rv = a_crese_list_reply(msgvec,
 578          (recipient_record ? HF_RECIPIENT_RECORD : HF_NONE));
 579    NYD2_LEAVE;
 580    return rv;
 581 }
 582
 583 static int
 584 a_crese_Reply(int *msgvec, bool_t recipient_record){
 585    struct header head;
 586    struct message *mp;
 587    int *ap;
 588    enum gfield gf;
 589    NYD2_ENTER;
 590
 591    memset(&head, 0, sizeof head);
 592    gf = ok_blook(fullnames) ? GFULL | GSKIN : GSKIN;
 593
 594    for(ap = msgvec; *ap != 0; ++ap){
 595       struct name *np;
 596
 597       mp = &message[*ap - 1];
 598       touch(mp);
 599       setdot(mp);
 600
 601       if((np = a_crese_reply_to(mp)) == NULL){
 602          char *cp;
 603
 604          if((cp = hfield1("from", mp)) == NULL)
 605             cp = nameof(mp, 2);
 606          np = lextract(cp, GTO | gf);
 607       }
 608       head.h_to = cat(head.h_to, np);
 609    }
 610
 611    mp = &message[msgvec[0] - 1];
 612    head.h_subject = hfield1("subject", mp);
 613    head.h_subject = a_crese_reedit(head.h_subject);
 614    a_crese_make_ref_and_cs(mp, &head);
 615    head.h_mailx_command = "Reply";
 616    head.h_mailx_orig_from = lextract(hfield1("from", mp), GIDENT | gf);
 617    head.h_mailx_orig_to = lextract(hfield1("to", mp), GTO | gf);
 618    head.h_mailx_orig_cc = lextract(hfield1("cc", mp), GCC | gf);
 619    head.h_mailx_orig_bcc = lextract(hfield1("bcc", mp), GBCC | gf);
 620
 621    if(ok_blook(recipients_in_cc)){
 622       a_crese_polite_rt_mft_move(mp, &head, head.h_to);
 623
 624       head.h_mailx_raw_cc = namelist_dup(head.h_cc, GCC | gf);
 625       head.h_cc = n_alternates_remove(head.h_cc, FAL0);
 626    }
 627    head.h_mailx_raw_to = namelist_dup(head.h_to, GTO | gf);
 628    head.h_to = n_alternates_remove(head.h_to, FAL0);
 629
 630    if(ok_blook(quote_as_attachment)){
 631       head.h_attach = csalloc(1, sizeof *head.h_attach);
 632       head.h_attach->a_msgno = *msgvec;
 633       head.h_attach->a_content_description = _("Original message content");
 634    }
 635
 636    if(mail1(&head, 1, mp, NULL, recipient_record, 0) != OKAY){
 637       msgvec = NULL;
 638       goto jleave;
 639    }
 640
 641    if(ok_blook(markanswered) && !(mp->m_flag & MANSWERED))
 642       mp->m_flag |= MANSWER | MANSWERED;
 643 jleave:
 644    NYD2_LEAVE;
 645    return (msgvec == NULL);
 646 }
 647
 648 static int
 649 a_crese_fwd(char *str, int recipient_record){
 650    struct header head;
 651    struct message *mp;
 652    enum gfield gf;
 653    bool_t f, forward_as_attachment;
 654    char *recipient;
 655    int rv, *msgvec;
 656    NYD2_ENTER;
 657
 658    rv = 1;
 659
 660    if((recipient = laststring(str, &f, TRU1)) == NULL){
 661       n_err(_("No recipient specified.\n"));
 662       n_pstate_err_no = n_ERR_DESTADDRREQ;
 663       goto jleave;
 664    }
 665
 666    forward_as_attachment = ok_blook(forward_as_attachment);
 667    gf = ok_blook(fullnames) ? GFULL | GSKIN : GSKIN;
 668    msgvec = n_autorec_alloc((msgCount + 2) * sizeof *msgvec);
 669
 670    n_pstate_err_no = n_ERR_NODATA;
 671    if(!f){
 672       *msgvec = first(0, MMNORM);
 673       if(*msgvec != 0)
 674          msgvec[1] = 0;
 675    }else if(getmsglist(str, msgvec, 0) < 0)
 676       goto jleave;
 677
 678    if(*msgvec == 0){
 679       n_err(_("No applicable messages.\n"));
 680       goto jleave;
 681    }
 682    if(msgvec[1] != 0){
 683       n_err(_("Cannot forward multiple messages at once\n"));
 684       n_pstate_err_no = n_ERR_NOTSUP;
 685       goto jleave;
 686    }
 687
 688    memset(&head, 0, sizeof head);
 689    head.h_to = lextract(recipient,
 690          (GTO | (ok_blook(fullnames) ? GFULL : GSKIN)));
 691
 692    mp = &message[*msgvec - 1];
 693    touch(mp);
 694    setdot(mp);
 695    head.h_subject = hfield1("subject", mp);
 696    head.h_subject = a_crese__fwdedit(head.h_subject);
 697    head.h_mailx_command = "forward";
 698    head.h_mailx_raw_to = namelist_dup(head.h_to, GTO | gf);
 699    head.h_mailx_orig_from = lextract(hfield1("from", mp), GIDENT | gf);
 700    head.h_mailx_orig_to = lextract(hfield1("to", mp), GTO | gf);
 701    head.h_mailx_orig_cc = lextract(hfield1("cc", mp), GCC | gf);
 702    head.h_mailx_orig_bcc = lextract(hfield1("bcc", mp), GBCC | gf);
 703
 704    if(forward_as_attachment){
 705       head.h_attach = csalloc(1, sizeof *head.h_attach);
 706       head.h_attach->a_msgno = *msgvec;
 707       head.h_attach->a_content_description = _("Forwarded message");
 708    }
 709
 710    rv = (mail1(&head, 1, (forward_as_attachment ? NULL : mp), NULL,
 711          recipient_record, 1) != OKAY); /* reverse! */
 712 jleave:
 713    NYD2_LEAVE;
 714    return rv;
 715 }
 716
 717 static char *
 718 a_crese__fwdedit(char *subj){
 719    struct str in, out;
 720    char *newsubj;
 721    NYD2_ENTER;
 722
 723    newsubj = NULL;
 724
 725    if(subj == NULL || *subj == '\0')
 726       goto jleave;
 727
 728    in.s = subj;
 729    in.l = strlen(subj);
 730    mime_fromhdr(&in, &out, TD_ISPR | TD_ICONV);
 731
 732    newsubj = n_autorec_alloc(out.l + 6);
 733    if(!ascncasecmp(out.s, "Fwd: ", sizeof("Fwd: ") -1)) /* TODO EXTEND SUPP.. */
 734       memcpy(newsubj, out.s, out.l +1);
 735    else{
 736       memcpy(newsubj, "Fwd: ", 5); /* TODO ..a la subject_re_trim()! */
 737       memcpy(&newsubj[5], out.s, out.l +1);
 738    }
 739
 740    free(out.s);
 741 jleave:
 742    NYD2_LEAVE;
 743    return newsubj;
 744 }
 745
 746 static int
 747 a_crese_resend1(void *vp, bool_t add_resent){
 748    struct header head;
 749    struct name *myto, *myrawto;
 750    enum gfield gf;
 751    char *name, *str;
 752    int *ip, *msgvec;
 753    bool_t fail;
 754    NYD2_ENTER;
 755
 756    fail = TRU1;
 757
 758    str = vp;
 759    msgvec = n_autorec_alloc((msgCount + 2) * sizeof *msgvec);
 760    name = laststring(str, &fail, TRU1);
 761    if(name == NULL){
 762       n_err(_("No recipient specified.\n"));
 763       n_pstate_err_no = n_ERR_DESTADDRREQ;
 764       goto jleave;
 765    }
 766
 767    n_pstate_err_no = n_ERR_NODATA;
 768
 769    if(!fail){
 770       *msgvec = first(0, MMNORM);
 771       if(*msgvec != 0)
 772          msgvec[1] = 0;
 773    }else if(getmsglist(str, msgvec, 0) < 0)
 774       goto jleave;
 775
 776    if(*msgvec == 0){
 777       n_err(_("No applicable messages.\n"));
 778       goto jleave;
 779    }
 780
 781    fail = TRU1;
 782    gf = ok_blook(fullnames) ? GFULL | GSKIN : GSKIN;
 783
 784    myrawto = nalloc(name, GTO | gf);
 785    myto = usermap(namelist_dup(myrawto, myrawto->n_type), FAL0);
 786    myto = n_alternates_remove(myto, TRU1);
 787    if(myto == NULL){
 788       n_pstate_err_no = n_ERR_DESTADDRREQ;
 789       goto jleave;
 790    }
 791
 792    n_autorec_relax_create();
 793    for(ip = msgvec; *ip != 0 && UICMP(z, PTR2SIZE(ip - msgvec), <, msgCount);
 794          ++ip){
 795       struct message *mp;
 796
 797       mp = &message[*ip - 1];
 798       touch(mp);
 799       setdot(mp);
 800
 801       memset(&head, 0, sizeof head);
 802       head.h_to = myto;
 803       head.h_mailx_command = "resend";
 804       head.h_mailx_raw_to = myrawto;
 805       head.h_mailx_orig_from = lextract(hfield1("from", mp), GIDENT | gf);
 806       head.h_mailx_orig_to = lextract(hfield1("to", mp), GTO | gf);
 807       head.h_mailx_orig_cc = lextract(hfield1("cc", mp), GCC | gf);
 808       head.h_mailx_orig_bcc = lextract(hfield1("bcc", mp), GBCC | gf);
 809
 810       if(resend_msg(mp, &head, add_resent) != OKAY){
 811          /* n_autorec_relax_gut(); XXX but is handled automatically? */
 812          goto jleave;
 813       }
 814       n_autorec_relax_unroll();
 815    }
 816    n_autorec_relax_gut();
 817
 818    fail = FAL0;
 819    n_pstate_err_no = n_ERR_NONE;
 820 jleave:
 821    NYD2_LEAVE;
 822    return (fail != FAL0);
 823 }
 824
 825 FL int
 826 c_reply(void *vp){
 827    int rv;
 828    NYD_ENTER;
 829
 830    rv = (*a_crese_reply_or_Reply('r'))(vp, FAL0);
 831    NYD_LEAVE;
 832    return rv;
 833 }
 834
 835 FL int
 836 c_replyall(void *vp){
 837    int rv;
 838    NYD_ENTER;
 839
 840    rv = a_crese_reply(vp, FAL0);
 841    NYD_LEAVE;
 842    return rv;
 843 }
 844
 845 FL int
 846 c_replysender(void *vp){
 847    int rv;
 848    NYD_ENTER;
 849
 850    rv = a_crese_Reply(vp, FAL0);
 851    NYD_LEAVE;
 852    return rv;
 853 }
 854
 855 FL int
 856 c_Reply(void *vp){
 857    int rv;
 858    NYD_ENTER;
 859
 860    rv = (*a_crese_reply_or_Reply('R'))(vp, FAL0);
 861    NYD_LEAVE;
 862    return rv;
 863 }
 864
 865 FL int
 866 c_Lreply(void *vp){
 867    int rv;
 868    NYD_ENTER;
 869
 870    rv = a_crese_list_reply(vp, HF_LIST_REPLY);
 871    NYD_LEAVE;
 872    return rv;
 873 }
 874
 875 FL int
 876 c_followup(void *vp){
 877    int rv;
 878    NYD_ENTER;
 879
 880    rv = (*a_crese_reply_or_Reply('r'))(vp, TRU1);
 881    NYD_LEAVE;
 882    return rv;
 883 }
 884
 885 FL int
 886 c_followupall(void *vp){
 887    int rv;
 888    NYD_ENTER;
 889
 890    rv = a_crese_reply(vp, TRU1);
 891    NYD_LEAVE;
 892    return rv;
 893 }
 894
 895 FL int
 896 c_followupsender(void *vp){
 897    int rv;
 898    NYD_ENTER;
 899
 900    rv = a_crese_Reply(vp, TRU1);
 901    NYD_LEAVE;
 902    return rv;
 903 }
 904
 905 FL int
 906 c_Followup(void *vp){
 907    int rv;
 908    NYD_ENTER;
 909
 910    rv = (*a_crese_reply_or_Reply('R'))(vp, TRU1);
 911    NYD_LEAVE;
 912    return rv;
 913 }
 914
 915 FL int
 916 c_forward(void *vp){
 917    int rv;
 918    NYD_ENTER;
 919
 920    rv = a_crese_fwd(vp, 0);
 921    NYD_LEAVE;
 922    return rv;
 923 }
 924
 925 FL int
 926 c_Forward(void *vp){
 927    int rv;
 928    NYD_ENTER;
 929
 930    rv = a_crese_fwd(vp, 1);
 931    NYD_LEAVE;
 932    return rv;
 933 }
 934
 935 FL int
 936 c_resend(void *vp){
 937    int rv;
 938    NYD_ENTER;
 939
 940    rv = a_crese_resend1(vp, TRU1);
 941    NYD_LEAVE;
 942    return rv;
 943 }
 944
 945 FL int
 946 c_Resend(void *vp){
 947    int rv;
 948    NYD_ENTER;
 949
 950    rv = a_crese_resend1(vp, FAL0);
 951    NYD_LEAVE;
 952    return rv;
 953 }
 954
 955 /* s-it-mode */