git.marmaro.de Git - mmh/blob - uip/forw.c

   1 /*
   2 ** forw.c -- forward a message, or group of messages.
   3 **
   4 ** This code is Copyright (c) 2002, by the authors of nmh.  See the
   5 ** COPYRIGHT file in the root directory of the nmh distribution for
   6 ** complete copyright information.
   7 */
   8
   9 #include <h/mh.h>
  10 #include <fcntl.h>
  11 #include <h/fmt_scan.h>
  12 #include <h/tws.h>
  13 #include <h/utils.h>
  14 #include <unistd.h>
  15 #include <locale.h>
  16 #include <sysexits.h>
  17
  18 #define IFORMAT  "digest-issue-%s"
  19 #define VFORMAT  "digest-volume-%s"
  20
  21 static struct swit switches[] = {
  22 #define ANNOSW  0
  23         { "annotate", 0 },
  24 #define NANNOSW  1
  25         { "noannotate", 2 },
  26 #define EDITRSW  2
  27         { "editor editor", 0 },
  28 #define FORMSW  3
  29         { "form formfile", 0 },
  30 #define DGSTSW  4
  31         { "digest list", 0 },
  32 #define ISSUESW  5
  33         { "issue number", 0 },
  34 #define VOLUMSW  6
  35         { "volume number", 0 },
  36 #define WHATSW  7
  37         { "whatnowproc program", 0 },
  38 #define VERSIONSW  8
  39         { "Version", 0 },
  40 #define HELPSW  9
  41         { "help", 0 },
  42 #define BILDSW  10
  43         { "build", 5 },  /* interface from mhe */
  44         { NULL, 0 }
  45 };
  46
  47 char *version=VERSION;
  48
  49 static char drft[BUFSIZ];
  50 static struct msgs *mp = NULL;
  51
  52
  53 /*
  54 ** static prototypes
  55 */
  56 static void add_forw_hdr(char *);
  57 static int build_form(char *, char *, int, int);
  58
  59
  60 int
  61 main(int argc, char **argv)
  62 {
  63         int msgp = 0, anot = 0;
  64         int issue = 0, volume = 0;
  65         int in;
  66         int out, msgnum;
  67         char *cp, *cwd, *maildir;
  68         char *digest = NULL, *ed = NULL;
  69         char *folder = NULL;
  70         char *form = NULL, buf[BUFSIZ], value[10];
  71         char **argp, **arguments, *msgs[MAXARGS];
  72         char *fmtstr;
  73         int buildsw = 0;
  74
  75         setlocale(LC_ALL, "");
  76         invo_name = mhbasename(argv[0]);
  77
  78         /* read user profile/context */
  79         context_read();
  80
  81         arguments = getarguments(invo_name, argc, argv, 1);
  82         argp = arguments;
  83
  84         while ((cp = *argp++)) {
  85                 if (*cp == '-') {
  86                         switch (smatch(++cp, switches)) {
  87                         case AMBIGSW:
  88                                 ambigsw(cp, switches);
  89                                 exit(EX_USAGE);
  90                         case UNKWNSW:
  91                                 adios(EX_USAGE, NULL, "-%s unknown", cp);
  92
  93                         case HELPSW:
  94                                 snprintf(buf, sizeof(buf), "%s [+folder] [msgs] [switches]", invo_name);
  95                                 print_help(buf, switches, 1);
  96                                 exit(argc == 2 ? EX_OK : EX_USAGE);
  97                         case VERSIONSW:
  98                                 print_version(invo_name);
  99                                 exit(argc == 2 ? EX_OK : EX_USAGE);
 100
 101                         case ANNOSW:
 102                                 anot++;
 103                                 continue;
 104                         case NANNOSW:
 105                                 anot = 0;
 106                                 continue;
 107
 108                         case EDITRSW:
 109                                 if (!(ed = *argp++) || *ed == '-')
 110                                         adios(EX_USAGE, NULL, "missing argument to %s",
 111                                                         argp[-2]);
 112                                 continue;
 113
 114                         case WHATSW:
 115                                 if (!(whatnowproc = *argp++) ||
 116                                                 *whatnowproc == '-')
 117                                         adios(EX_USAGE, NULL, "missing argument to %s",
 118                                                         argp[-2]);
 119                                 continue;
 120
 121                         case BILDSW:
 122                                 buildsw++;
 123                                 continue;
 124
 125                         case FORMSW:
 126                                 if (!(form = *argp++) || *form == '-')
 127                                         adios(EX_USAGE, NULL, "missing argument to %s",
 128                                                         argp[-2]);
 129                                 continue;
 130
 131                         case DGSTSW:
 132                                 if (!(digest = *argp++) || *digest == '-')
 133                                         adios(EX_USAGE, NULL, "missing argument to %s",
 134                                                         argp[-2]);
 135                                 continue;
 136                         case ISSUESW:
 137                                 if (!(cp = *argp++) || *cp == '-')
 138                                         adios(EX_USAGE, NULL, "missing argument to %s",
 139                                                         argp[-2]);
 140                                 if ((issue = atoi(cp)) < 1)
 141                                         adios(EX_USAGE, NULL, "bad argument %s %s",
 142                                                         argp[-2], cp);
 143                                 continue;
 144                         case VOLUMSW:
 145                                 if (!(cp = *argp++) || *cp == '-')
 146                                         adios(EX_USAGE, NULL, "missing argument to %s",
 147                                                         argp[-2]);
 148                                 if ((volume = atoi(cp)) < 1)
 149                                         adios(EX_USAGE, NULL, "bad argument %s %s",
 150                                                         argp[-2], cp);
 151                                 continue;
 152                         }
 153                 }
 154                 if (*cp == '+' || *cp == '@') {
 155                         if (folder)
 156                                 adios(EX_USAGE, NULL, "only one folder at a time!");
 157                         else
 158                                 folder = mh_xstrdup(expandfol(cp));
 159                 } else {
 160                         msgs[msgp++] = cp;
 161                 }
 162         }
 163
 164         cwd = mh_xstrdup(pwd());
 165         strncpy(drft, buildsw ? toabsdir("draft") : m_draft(seq_beyond),
 166                         sizeof(drft));
 167         /*
 168         ** FIXME: (concerning MHE support (buildsw) only)
 169         ** There's no check if the draft already exists. mmh has removed
 170         ** this case by having the draft folder. I won't add code only to
 171         ** handle this legacy issue for MHE. -- meillo@marmaro.de 2012-05
 172         */
 173
 174         /*
 175         ** Forwarding a message.
 176         */
 177         if (!msgp)
 178                 msgs[msgp++] = seq_cur;
 179         if (!folder)
 180                 folder = getcurfol();
 181         maildir = toabsdir(folder);
 182
 183         if (chdir(maildir) == NOTOK)
 184                 adios(EX_OSERR, maildir, "unable to change directory to");
 185
 186         /* read folder and create message structure */
 187         if (!(mp = folder_read(folder)))
 188                 adios(EX_IOERR, NULL, "unable to read folder %s", folder);
 189
 190         /* check for empty folder */
 191         if (mp->nummsg == 0)
 192                 adios(EX_DATAERR, NULL, "no messages in %s", folder);
 193
 194         /* parse all the message ranges/sequences and set SELECTED */
 195         for (msgnum = 0; msgnum < msgp; msgnum++) {
 196                 if (!m_convert(mp, msgs[msgnum])) {
 197                         exit(EX_SOFTWARE);
 198                 }
 199         }
 200         seq_setprev(mp);  /* set the previous sequence */
 201
 202         if ((out = creat(drft, m_gmprot())) == NOTOK)
 203                 adios(EX_CANTCREAT, drft, "unable to create");
 204
 205         /* Open form (component) file. */
 206         if (digest) {
 207                 if (issue == 0) {
 208                         snprintf(buf, sizeof(buf), IFORMAT, digest);
 209                         if (volume == 0 && (cp = context_find(buf))
 210                                         && ((issue = atoi(cp)) < 0))
 211                                 issue = 0;
 212                         issue++;
 213                 }
 214                 if (volume == 0) {
 215                         snprintf(buf, sizeof(buf), VFORMAT, digest);
 216                         if ((cp = context_find(buf)) == NULL ||
 217                                         (volume = atoi(cp)) <= 0)
 218                                 volume = 1;
 219                 }
 220                 if (!form)
 221                         form = digestcomps;
 222                 in = build_form(form, digest, volume, issue);
 223                 cpydata(in, out, form, drft);
 224                 close(in);
 225         } else {
 226                 fmtstr = new_fs(form, forwcomps);
 227                 if (write(out, fmtstr, strlen(fmtstr)) != (int)strlen(fmtstr)) {
 228                         adios(EX_IOERR, drft, "error writing");
 229                 }
 230         }
 231         close(out);
 232
 233         add_forw_hdr(drft);
 234
 235         if (digest) {
 236                 snprintf(buf, sizeof(buf), IFORMAT, digest);
 237                 snprintf(value, sizeof(value), "%d", issue);
 238                 context_replace(buf, mh_xstrdup(value));
 239                 snprintf(buf, sizeof(buf), VFORMAT, digest);
 240                 snprintf(value, sizeof(value), "%d", volume);
 241                 context_replace(buf, mh_xstrdup(value));
 242         }
 243
 244         context_replace(curfolder, folder); /* update current folder */
 245         seq_setcur(mp, mp->lowsel);  /* update current message */
 246         seq_save(mp);  /* synchronize sequences */
 247         context_save();  /* save the context file */
 248
 249         if (buildsw)
 250                 exit(EX_OK);
 251         what_now(ed, NOUSE, drft, NULL, 0, mp,
 252                 anot ? "Forwarded" : NULL, cwd);
 253         return EX_OSERR;
 254 }
 255
 256
 257 /*
 258 ** Create an attachment header for the to be forward messages.
 259 */
 260 static void
 261 add_forw_hdr(char *draft)
 262 {
 263         int msgnum;
 264         char buf[BUFSIZ];
 265         char *vec[MAXARGS];
 266         int vecp = 0;
 267
 268         vec[vecp++] = "anno";
 269         vec[vecp++] = "-append";
 270         vec[vecp++] = "-nodate";
 271         vec[vecp++] = draft;
 272         vec[vecp++] = "-comp";
 273         vec[vecp++] = attach_hdr;
 274         vec[vecp++] = "-text";
 275         snprintf(buf, sizeof buf, "+%s", mp->foldpath);
 276         for (msgnum = mp->lowsel; msgnum <= mp->hghsel; msgnum++) {
 277                 if (!is_selected(mp, msgnum)) {
 278                         continue;
 279                 }
 280                 if (strlen(buf) + 1 + strlen(m_name(msgnum)) + 1
 281                                 > sizeof buf) {
 282                         adios(EX_DATAERR, NULL, "Attachment header line too long. "
 283                                         "Forward less messages.");
 284                 }
 285                 strcat(buf, " ");
 286                 strcat(buf, m_name(msgnum));
 287         }
 288         vec[vecp++] = buf;
 289         vec[vecp] = NULL;
 290         if (execprog(*vec, vec) != 0) {
 291                 advise(NULL, "unable to add attachment header");
 292         }
 293 }
 294
 295
 296 static int
 297 build_form(char *form, char *digest, int volume, int issue)
 298 {
 299         int in;
 300         int fmtsize;
 301         char *fmtstr;
 302         char *line, tmpfil[BUFSIZ];
 303         FILE *tmp;
 304         struct comp *cptr;
 305         struct format *fmt;
 306         int dat[5];
 307         char *cp = NULL;
 308
 309         /* Get new format string */
 310         fmtstr = new_fs(form, NULL);
 311         fmtsize = strlen(fmtstr) + 256;
 312
 313         /* Compile format string */
 314         fmt_compile(fmtstr, &fmt);
 315
 316         FINDCOMP(cptr, "digest");
 317         if (cptr)
 318                 cptr->c_text = digest;
 319         FINDCOMP(cptr, "date");
 320         if (cptr)
 321                 cptr->c_text = mh_xstrdup(dtimenow());
 322
 323         dat[0] = issue;
 324         dat[1] = volume;
 325         dat[2] = 0;
 326         dat[3] = fmtsize;
 327         dat[4] = 0;
 328
 329         cp = m_mktemp2(NULL, invo_name, NULL, &tmp);
 330         if (cp == NULL) {
 331                 adios(EX_CANTCREAT, "forw", "unable to create temporary file");
 332         }
 333         strncpy(tmpfil, cp, sizeof(tmpfil));
 334         unlink(tmpfil);
 335         if ((in = dup(fileno(tmp))) == NOTOK)
 336                 adios(EX_OSERR, "dup", "unable to");
 337
 338         line = mh_xcalloc(fmtsize, sizeof(char));
 339         fmt_scan(fmt, line, fmtsize, dat);
 340         fputs(line, tmp);
 341         mh_free0(&line);
 342         if (fclose(tmp))
 343                 adios(EX_IOERR, tmpfil, "error writing");
 344
 345         lseek(in, (off_t) 0, SEEK_SET);
 346         return in;
 347 }