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
  15
  16 #define IFORMAT  "digest-issue-%s"
  17 #define VFORMAT  "digest-volume-%s"
  18
  19 static struct swit switches[] = {
  20 #define ANNOSW  0
  21         { "annotate", 0 },
  22 #define NANNOSW  1
  23         { "noannotate", 2 },
  24 #define EDITRSW  2
  25         { "editor editor", 0 },
  26 #define FORMSW  3
  27         { "form formfile", 0 },
  28 #define DGSTSW  4
  29         { "digest list", 0 },
  30 #define ISSUESW  5
  31         { "issue number", 0 },
  32 #define VOLUMSW  6
  33         { "volume number", 0 },
  34 #define WHATSW  7
  35         { "whatnowproc program", 0 },
  36 #define VERSIONSW  8
  37         { "Version", 0 },
  38 #define HELPSW  9
  39         { "help", 0 },
  40 #define BILDSW  10
  41         { "build", 5 },  /* interface from mhe */
  42         { NULL, 0 }
  43 };
  44
  45 static char drft[BUFSIZ];
  46 static struct msgs *mp = NULL;
  47
  48
  49 /*
  50 ** static prototypes
  51 */
  52 static void add_forw_hdr(char *);
  53 static int build_form(char *, char *, int, int);
  54
  55
  56 int
  57 main(int argc, char **argv)
  58 {
  59         int msgp = 0, anot = 0;
  60         int issue = 0, volume = 0;
  61         int in;
  62         int out, msgnum;
  63         char *cp, *cwd, *maildir;
  64         char *digest = NULL, *ed = NULL;
  65         char *folder = NULL;
  66         char *form = NULL, buf[BUFSIZ], value[10];
  67         char **argp, **arguments, *msgs[MAXARGS];
  68         char *fmtstr;
  69         int buildsw = 0;
  70
  71         setlocale(LC_ALL, "");
  72         invo_name = mhbasename(argv[0]);
  73
  74         /* read user profile/context */
  75         context_read();
  76
  77         arguments = getarguments(invo_name, argc, argv, 1);
  78         argp = arguments;
  79
  80         while ((cp = *argp++)) {
  81                 if (*cp == '-') {
  82                         switch (smatch(++cp, switches)) {
  83                         case AMBIGSW:
  84                                 ambigsw(cp, switches);
  85                                 /* sysexits.h EX_USAGE */
  86                                 exit(1);
  87                         case UNKWNSW:
  88                                 adios(NULL, "-%s unknown", cp);
  89
  90                         case HELPSW:
  91                                 snprintf(buf, sizeof(buf), "%s [+folder] [msgs] [switches]", invo_name);
  92                                 print_help(buf, switches, 1);
  93                                 exit(0);
  94                         case VERSIONSW:
  95                                 print_version(invo_name);
  96                                 exit(0);
  97
  98                         case ANNOSW:
  99                                 anot++;
 100                                 continue;
 101                         case NANNOSW:
 102                                 anot = 0;
 103                                 continue;
 104
 105                         case EDITRSW:
 106                                 if (!(ed = *argp++) || *ed == '-')
 107                                         adios(NULL, "missing argument to %s",
 108                                                         argp[-2]);
 109                                 continue;
 110
 111                         case WHATSW:
 112                                 if (!(whatnowproc = *argp++) ||
 113                                                 *whatnowproc == '-')
 114                                         adios(NULL, "missing argument to %s",
 115                                                         argp[-2]);
 116                                 continue;
 117
 118                         case BILDSW:
 119                                 buildsw++;
 120                                 continue;
 121
 122                         case FORMSW:
 123                                 if (!(form = *argp++) || *form == '-')
 124                                         adios(NULL, "missing argument to %s",
 125                                                         argp[-2]);
 126                                 continue;
 127
 128                         case DGSTSW:
 129                                 if (!(digest = *argp++) || *digest == '-')
 130                                         adios(NULL, "missing argument to %s",
 131                                                         argp[-2]);
 132                                 //mime = 0;
 133                                 continue;
 134                         case ISSUESW:
 135                                 if (!(cp = *argp++) || *cp == '-')
 136                                         adios(NULL, "missing argument to %s",
 137                                                         argp[-2]);
 138                                 if ((issue = atoi(cp)) < 1)
 139                                         adios(NULL, "bad argument %s %s",
 140                                                         argp[-2], cp);
 141                                 continue;
 142                         case VOLUMSW:
 143                                 if (!(cp = *argp++) || *cp == '-')
 144                                         adios(NULL, "missing argument to %s",
 145                                                         argp[-2]);
 146                                 if ((volume = atoi(cp)) < 1)
 147                                         adios(NULL, "bad argument %s %s",
 148                                                         argp[-2], cp);
 149                                 continue;
 150                         }
 151                 }
 152                 if (*cp == '+' || *cp == '@') {
 153                         if (folder)
 154                                 adios(NULL, "only one folder at a time!");
 155                         else
 156                                 folder = getcpy(expandfol(cp));
 157                 } else {
 158                         msgs[msgp++] = cp;
 159                 }
 160         }
 161
 162         cwd = getcpy(pwd());
 163         strncpy(drft, buildsw ? toabsdir("draft") : m_draft(seq_beyond),
 164                         sizeof(drft));
 165         /*
 166         ** FIXME: (concerning MHE support (buildsw) only)
 167         ** There's no check if the draft already exists. mmh has removed
 168         ** this case by having the draft folder. I won't add code only to
 169         ** handle this legacy issue for MHE. -- meillo@marmaro.de 2012-05
 170         */
 171
 172         /*
 173         ** Forwarding a message.
 174         */
 175         if (!msgp)
 176                 msgs[msgp++] = seq_cur;
 177         if (!folder)
 178                 folder = getcurfol();
 179         maildir = toabsdir(folder);
 180
 181         if (chdir(maildir) == NOTOK)
 182                 adios(maildir, "unable to change directory to");
 183
 184         /* read folder and create message structure */
 185         if (!(mp = folder_read(folder)))
 186                 adios(NULL, "unable to read folder %s", folder);
 187
 188         /* check for empty folder */
 189         if (mp->nummsg == 0)
 190                 adios(NULL, "no messages in %s", folder);
 191
 192         /* parse all the message ranges/sequences and set SELECTED */
 193         for (msgnum = 0; msgnum < msgp; msgnum++) {
 194                 if (!m_convert(mp, msgs[msgnum])) {
 195                         /* sysexits.h EX_USAGE */
 196                         exit(1);
 197                 }
 198         }
 199         seq_setprev(mp);  /* set the previous sequence */
 200
 201         if ((out = creat(drft, m_gmprot())) == NOTOK)
 202                 adios(drft, "unable to create");
 203
 204         /* Open form (component) file. */
 205         if (digest) {
 206                 if (issue == 0) {
 207                         snprintf(buf, sizeof(buf), IFORMAT, digest);
 208                         if (volume == 0 && (cp = context_find(buf))
 209                                         && ((issue = atoi(cp)) < 0))
 210                                 issue = 0;
 211                         issue++;
 212                 }
 213                 if (volume == 0) {
 214                         snprintf(buf, sizeof(buf), VFORMAT, digest);
 215                         if ((cp = context_find(buf)) == NULL ||
 216                                         (volume = atoi(cp)) <= 0)
 217                                 volume = 1;
 218                 }
 219                 if (!form)
 220                         form = digestcomps;
 221                 in = build_form(form, digest, volume, issue);
 222                 cpydata(in, out, form, drft);
 223                 close(in);
 224         } else {
 225                 fmtstr = new_fs(form, forwcomps);
 226                 if (write(out, fmtstr, strlen(fmtstr)) != (int)strlen(fmtstr)) {
 227                         adios(drft, "error writing");
 228                 }
 229         }
 230         close(out);
 231
 232         add_forw_hdr(drft);
 233
 234         if (digest) {
 235                 snprintf(buf, sizeof(buf), IFORMAT, digest);
 236                 snprintf(value, sizeof(value), "%d", issue);
 237                 context_replace(buf, getcpy(value));
 238                 snprintf(buf, sizeof(buf), VFORMAT, digest);
 239                 snprintf(value, sizeof(value), "%d", volume);
 240                 context_replace(buf, getcpy(value));
 241         }
 242
 243         context_replace(curfolder, folder); /* update current folder */
 244         seq_setcur(mp, mp->lowsel);  /* update current message */
 245         seq_save(mp);  /* synchronize sequences */
 246         context_save();  /* save the context file */
 247
 248         if (buildsw)
 249                 exit(0);
 250         what_now(ed, NOUSE, drft, NULL, 0, mp,
 251                 anot ? "Forwarded" : NULL, cwd);
 252         /* sysexits.h EX_SOFTWARE */
 253         return 1;
 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(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         register char *fmtstr;
 302         char *line, tmpfil[BUFSIZ];
 303         FILE *tmp;
 304         register 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 = getcpy(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) adios("forw", "unable to create temporary file");
 331         strncpy(tmpfil, cp, sizeof(tmpfil));
 332         unlink(tmpfil);
 333         if ((in = dup(fileno(tmp))) == NOTOK)
 334                 adios("dup", "unable to");
 335
 336         line = mh_xmalloc((unsigned) fmtsize);
 337         fmt_scan(fmt, line, fmtsize, dat);
 338         fputs(line, tmp);
 339         free(line);
 340         if (fclose(tmp))
 341                 adios(tmpfil, "error writing");
 342
 343         lseek(in, (off_t) 0, SEEK_SET);
 344         return in;
 345 }