cmd-write.c

   1 /*@ S-nail - a mail user agent derived from Berkeley Mail.
   2  *@ User commands which save, copy, write (parts of) messages.
   3  *
   4  * Copyright (c) 2000-2004 Gunnar Ritter, Freiburg i. Br., Germany.
   5  * Copyright (c) 2012 - 2018 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_write
  37
  38 #ifndef HAVE_AMALGAMATION
  39 # include "nail.h"
  40 #endif
  41
  42 /* Save/copy the indicated messages at the end of the passed file name.
  43  * If mark is true, mark the message "saved" */
  44 static int     save1(char *str, int domark, char const *cmd,
  45                   struct n_ignore const *itp, int convert, int sender_record,
  46                   int domove);
  47
  48 /* Snarf the file from the end of the command line and return a pointer to it.
  49  * If there is no file attached, return the mbox file.  Put a null in front of
  50  * the file name so that the message list processing won't see it, unless the
  51  * file name is the only thing on the line, in which case, return 0 in the
  52  * reference flag variable */
  53 static char *  snarf(char *linebuf, bool_t *flag, bool_t usembox);
  54
  55 static int
  56 save1(char *str, int domark, char const *cmd, struct n_ignore const *itp,
  57    int convert, int sender_record, int domove)
  58 {
  59    ui64_t mstats[1], tstats[2];
  60    enum n_fopen_state fs;
  61    int last, *msgvec, *ip;
  62    struct message *mp;
  63    char *file, *cp, *cq;
  64    char const *disp, *shell;
  65    FILE *obuf;
  66    bool_t success, isflag;
  67    NYD_ENTER;
  68
  69    success = FAL0;
  70    last = 0;
  71    shell = NULL;
  72    file = NULL;
  73
  74    msgvec = n_autorec_alloc((msgCount + 2) * sizeof *msgvec);
  75    if (sender_record) {
  76       for (cp = str; *cp != '\0' && spacechar(*cp); ++cp)
  77          ;
  78       isflag = (*cp != '\0');
  79    } else {
  80       if ((file = snarf(str, &isflag, convert != SEND_TOFILE)) == NULL)
  81          goto jleave;
  82       while(spacechar(*file))
  83          ++file;
  84       if (*file == '|') {
  85          ++file;
  86          shell = ok_vlook(SHELL);
  87       }
  88    }
  89
  90    if (!isflag) {
  91       *msgvec = first(0, MMNORM);
  92       msgvec[1] = 0;
  93    } else if (getmsglist(str, msgvec, 0) < 0)
  94       goto jleave;
  95    if (*msgvec == 0) {
  96       if (n_pstate & (n_PS_HOOK_MASK | n_PS_ROBOT)) {
  97          success = TRU1;
  98          goto jleave;
  99       }
 100       fprintf(n_stdout, _("No messages to %s.\n"), cmd);
 101       goto jleave;
 102    }
 103
 104    if (sender_record) {
 105       struct name *np;
 106
 107       if((cp = n_header_senderfield_of(message + *msgvec - 1)) == NULL ||
 108             (np = lextract(cp, GTO | GSKIN)) == NULL){
 109          n_err(_("Cannot determine message sender to %s.\n"), cmd);
 110          goto jleave;
 111       }
 112       cp = np->n_name;
 113
 114       for (cq = cp; *cq != '\0' && *cq != '@'; cq++)
 115          ;
 116       *cq = '\0';
 117       if (ok_blook(outfolder)) {
 118          size_t sz = strlen(cp) +1;
 119          file = n_autorec_alloc(sz + 1);
 120          file[0] = '+';
 121          memcpy(file + 1, cp, sz);
 122       } else
 123          file = cp;
 124    }
 125
 126    /* Pipe target is special TODO hacked in later, normalize flow! */
 127    if (shell != NULL) {
 128       if ((obuf = Popen(file, "w", shell, NULL, 1)) == NULL) {
 129          int esave;
 130
 131          esave = n_err_no;
 132          n_perr(file, esave);
 133          n_err_no = esave;
 134          goto jleave;
 135       }
 136       isflag = FAL0;
 137       disp = A_("[Piped]");
 138       goto jsend;
 139    }
 140
 141    if ((file = fexpand(file, FEXP_FULL)) == NULL)
 142       goto jleave;
 143
 144    /* TODO all this should be URL and Mailbox-"VFS" based, and then finally
 145     * TODO end up as Mailbox()->append().  Unless SEND_TOFILE, of course.
 146     * TODO However, URL parse because that file:// prefix check is a HACK! */
 147    if(convert == SEND_TOFILE && !is_prefix("file://", file))
 148       file = savecat("file://", file);
 149    if((obuf = n_fopen_any(file, "a+", &fs)) == NULL){
 150       n_perr(file, 0);
 151       goto jleave;
 152    }
 153
 154 #if defined HAVE_POP3 && defined HAVE_IMAP
 155    if(mb.mb_type == MB_POP3 && (fs & n_PROTO_MASK) == n_PROTO_IMAP){
 156       Fclose(obuf);
 157       n_err(_("Direct copy from POP3 to IMAP not supported before v15\n"));
 158       goto jleave;
 159    }
 160 #endif
 161
 162    disp = (fs & n_FOPEN_STATE_EXISTS) ? A_("[Appended]") : A_("[New file]");
 163
 164    if((fs & (n_PROTO_MASK | n_FOPEN_STATE_EXISTS)) ==
 165          (n_PROTO_FILE | n_FOPEN_STATE_EXISTS)){
 166       int xerr;
 167
 168       /* TODO RETURN check, but be aware of protocols: v15: Mailbox->lock()!
 169        * TODO BETTER yet: should be returned in lock state already! */
 170       n_file_lock(fileno(obuf), FLT_WRITE, 0,0, UIZ_MAX);
 171
 172       if((xerr = n_folder_mbox_prepare_append(obuf, NULL)) != n_ERR_NONE){
 173          n_perr(file, xerr);
 174          goto jleave;
 175       }
 176    }
 177
 178 jsend:
 179    success = TRU1;
 180    tstats[0] = tstats[1] = 0;
 181 #ifdef HAVE_IMAP
 182    imap_created_mailbox = 0;
 183 #endif
 184
 185    srelax_hold();
 186    for (ip = msgvec; *ip != 0 && UICMP(z, PTR2SIZE(ip - msgvec), <, msgCount);
 187          ++ip) {
 188       mp = &message[*ip - 1];
 189 #ifdef HAVE_IMAP
 190       if((fs & n_PROTO_MASK) == n_PROTO_IMAP &&
 191             !n_ignore_is_any(n_IGNORE_SAVE) && imap_thisaccount(file)){
 192          if(imap_copy(mp, PTR2SIZE(mp - message + 1), file) == STOP){
 193             success = FAL0;
 194             goto jferr;
 195          }
 196          mstats[0] = mp->m_xsize;
 197       }else
 198 #endif
 199       if (sendmp(mp, obuf, itp, NULL, convert, mstats) < 0) {
 200          success = FAL0;
 201          goto jferr;
 202       }
 203       srelax();
 204
 205       touch(mp);
 206       if (domark)
 207          mp->m_flag |= MSAVED;
 208       if (domove) {
 209          mp->m_flag |= MDELETED | MSAVED;
 210          last = *ip;
 211       }
 212
 213       tstats[0] += mstats[0];
 214       tstats[1] += mp->m_lines;/* TODO won't work, need target! v15!! */
 215    }
 216    srelax_rele();
 217
 218    fflush(obuf);
 219
 220    /* TODO Should be a VFS, then n_MBOX knows what to do upon .close()! */
 221    if((fs & n_PROTO_MASK) == n_PROTO_FILE && convert == SEND_MBOX)
 222       n_folder_mbox_prepare_append(obuf, NULL);
 223
 224    if (ferror(obuf)) {
 225 jferr:
 226       n_perr(file, 0);
 227       if (!success)
 228          srelax_rele();
 229       success = FAL0;
 230    }
 231    if (shell != NULL) {
 232       if (!Pclose(obuf, TRU1))
 233          success = FAL0;
 234    } else if (Fclose(obuf) != 0)
 235       success = FAL0;
 236
 237    if (success) {
 238 #ifdef HAVE_IMAP
 239       if((fs & n_PROTO_MASK) == n_PROTO_IMAP){
 240          if(disconnected(file))
 241             disp = A_("[Queued]");
 242          else if(imap_created_mailbox)
 243             disp = A_("[New file]");
 244          else
 245             disp = A_("[Appended]");
 246       }
 247 #endif
 248       fprintf(n_stdout, "%s %s %" /*PRIu64 "/%"*/ PRIu64 " bytes\n",
 249          n_shexp_quote_cp(file, FAL0), disp,
 250          /*tstats[1], TODO v15: lines written */ tstats[0]);
 251    } else if (domark) {
 252       for (ip = msgvec; *ip != 0 &&
 253             UICMP(z, PTR2SIZE(ip - msgvec), <, msgCount); ++ip) {
 254          mp = message + *ip - 1;
 255          mp->m_flag &= ~MSAVED;
 256       }
 257    } else if (domove) {
 258       for (ip = msgvec; *ip != 0 &&
 259             UICMP(z, PTR2SIZE(ip - msgvec), <, msgCount); ++ip) {
 260          mp = message + *ip - 1;
 261          mp->m_flag &= ~(MSAVED | MDELETED);
 262       }
 263    }
 264
 265    if (domove && last && success) {
 266       setdot(message + last - 1);
 267       last = first(0, MDELETED);
 268       setdot(message + (last != 0 ? last - 1 : 0));
 269    }
 270 jleave:
 271    NYD_LEAVE;
 272    return (success == FAL0);
 273 }
 274
 275 static char *
 276 snarf(char *linebuf, bool_t *flag, bool_t usembox)
 277 {
 278    char *cp;
 279    NYD_ENTER;
 280
 281    if ((cp = laststring(linebuf, flag, TRU1)) == NULL) {
 282       if (usembox) {
 283          *flag = FAL0;
 284          cp = fexpand("&", FEXP_NVAR);
 285       } else
 286          n_err(_("No file specified\n"));
 287    }
 288    NYD_LEAVE;
 289    return cp;
 290 }
 291
 292 FL int
 293 c_save(void *v)
 294 {
 295    char *str = v;
 296    int rv;
 297    NYD_ENTER;
 298
 299    rv = save1(str, 1, "save", n_IGNORE_SAVE, SEND_MBOX, 0, 0);
 300    NYD_LEAVE;
 301    return rv;
 302 }
 303
 304 FL int
 305 c_Save(void *v)
 306 {
 307    char *str = v;
 308    int rv;
 309    NYD_ENTER;
 310
 311    rv = save1(str, 1, "save", n_IGNORE_SAVE, SEND_MBOX, 1, 0);
 312    NYD_LEAVE;
 313    return rv;
 314 }
 315
 316 FL int
 317 c_copy(void *v)
 318 {
 319    char *str = v;
 320    int rv;
 321    NYD_ENTER;
 322
 323    rv = save1(str, 0, "copy", n_IGNORE_SAVE, SEND_MBOX, 0, 0);
 324    NYD_LEAVE;
 325    return rv;
 326 }
 327
 328 FL int
 329 c_Copy(void *v)
 330 {
 331    char *str = v;
 332    int rv;
 333    NYD_ENTER;
 334
 335    rv = save1(str, 0, "copy", n_IGNORE_SAVE, SEND_MBOX, 1, 0);
 336    NYD_LEAVE;
 337    return rv;
 338 }
 339
 340 FL int
 341 c_move(void *v)
 342 {
 343    char *str = v;
 344    int rv;
 345    NYD_ENTER;
 346
 347    rv = save1(str, 0, "move", n_IGNORE_SAVE, SEND_MBOX, 0, 1);
 348    NYD_LEAVE;
 349    return rv;
 350 }
 351
 352 FL int
 353 c_Move(void *v)
 354 {
 355    char *str = v;
 356    int rv;
 357    NYD_ENTER;
 358
 359    rv = save1(str, 0, "move", n_IGNORE_SAVE, SEND_MBOX, 1, 1);
 360    NYD_LEAVE;
 361    return rv;
 362 }
 363
 364 FL int
 365 c_decrypt(void *v)
 366 {
 367    char *str = v;
 368    int rv;
 369    NYD_ENTER;
 370
 371    rv = save1(str, 0, "decrypt", n_IGNORE_SAVE, SEND_DECRYPT, 0, 0);
 372    NYD_LEAVE;
 373    return rv;
 374 }
 375
 376 FL int
 377 c_Decrypt(void *v)
 378 {
 379    char *str = v;
 380    int rv;
 381    NYD_ENTER;
 382
 383    rv = save1(str, 0, "decrypt", n_IGNORE_SAVE, SEND_DECRYPT, 1, 0);
 384    NYD_LEAVE;
 385    return rv;
 386 }
 387
 388 FL int
 389 c_write(void *v)
 390 {
 391    char *str = v;
 392    int rv;
 393    NYD_ENTER;
 394
 395    if (str == NULL || *str == '\0')
 396       str = savestr(n_path_devnull);
 397    rv = save1(str, 0, "write", n_IGNORE_ALL, SEND_TOFILE, 0, 0);
 398    NYD_LEAVE;
 399    return rv;
 400 }
 401
 402 /* s-it-mode */