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                                 done(1);
  86                         case UNKWNSW:
  87                                 adios(NULL, "-%s unknown", cp);
  88
  89                         case HELPSW:
  90                                 snprintf(buf, sizeof(buf), "%s [+folder] [msgs] [switches]", invo_name);
  91                                 print_help(buf, switches, 1);
  92                                 done(1);
  93                         case VERSIONSW:
  94                                 print_version(invo_name);
  95                                 done(1);
  96
  97                         case ANNOSW:
  98                                 anot++;
  99                                 continue;
 100                         case NANNOSW:
 101                                 anot = 0;
 102                                 continue;
 103
 104                         case EDITRSW:
 105                                 if (!(ed = *argp++) || *ed == '-')
 106                                         adios(NULL, "missing argument to %s",
 107                                                         argp[-2]);
 108                                 continue;
 109
 110                         case WHATSW:
 111                                 if (!(whatnowproc = *argp++) ||
 112                                                 *whatnowproc == '-')
 113                                         adios(NULL, "missing argument to %s",
 114                                                         argp[-2]);
 115                                 continue;
 116
 117                         case BILDSW:
 118                                 buildsw++;
 119                                 continue;
 120
 121                         case FORMSW:
 122                                 if (!(form = *argp++) || *form == '-')
 123                                         adios(NULL, "missing argument to %s",
 124                                                         argp[-2]);
 125                                 continue;
 126
 127                         case DGSTSW:
 128                                 if (!(digest = *argp++) || *digest == '-')
 129                                         adios(NULL, "missing argument to %s",
 130                                                         argp[-2]);
 131                                 //mime = 0;
 132                                 continue;
 133                         case ISSUESW:
 134                                 if (!(cp = *argp++) || *cp == '-')
 135                                         adios(NULL, "missing argument to %s",
 136                                                         argp[-2]);
 137                                 if ((issue = atoi(cp)) < 1)
 138                                         adios(NULL, "bad argument %s %s",
 139                                                         argp[-2], cp);
 140                                 continue;
 141                         case VOLUMSW:
 142                                 if (!(cp = *argp++) || *cp == '-')
 143                                         adios(NULL, "missing argument to %s",
 144                                                         argp[-2]);
 145                                 if ((volume = atoi(cp)) < 1)
 146                                         adios(NULL, "bad argument %s %s",
 147                                                         argp[-2], cp);
 148                                 continue;
 149                         }
 150                 }
 151                 if (*cp == '+' || *cp == '@') {
 152                         if (folder)
 153                                 adios(NULL, "only one folder at a time!");
 154                         else
 155                                 folder = getcpy(expandfol(cp));
 156                 } else {
 157                         msgs[msgp++] = cp;
 158                 }
 159         }
 160
 161         cwd = getcpy(pwd());
 162         strncpy(drft, buildsw ? toabsdir("draft") : m_draft(seq_beyond),
 163                         sizeof(drft));
 164         /*
 165         ** FIXME: (concerning MHE support (buildsw) only)
 166         ** There's no check if the draft already exists. mmh has removed
 167         ** this case by having the draft folder. I won't add code only to
 168         ** handle this legacy issue for MHE. -- meillo@marmaro.de 2012-05
 169         */
 170
 171         /*
 172         ** Forwarding a message.
 173         */
 174         if (!msgp)
 175                 msgs[msgp++] = seq_cur;
 176         if (!folder)
 177                 folder = getcurfol();
 178         maildir = toabsdir(folder);
 179
 180         if (chdir(maildir) == NOTOK)
 181                 adios(maildir, "unable to change directory to");
 182
 183         /* read folder and create message structure */
 184         if (!(mp = folder_read(folder)))
 185                 adios(NULL, "unable to read folder %s", folder);
 186
 187         /* check for empty folder */
 188         if (mp->nummsg == 0)
 189                 adios(NULL, "no messages in %s", folder);
 190
 191         /* parse all the message ranges/sequences and set SELECTED */
 192         for (msgnum = 0; msgnum < msgp; msgnum++)
 193                 if (!m_convert(mp, msgs[msgnum]))
 194                         done(1);
 195         seq_setprev(mp);  /* set the previous sequence */
 196
 197         if ((out = creat(drft, m_gmprot())) == NOTOK)
 198                 adios(drft, "unable to create");
 199
 200         /* Open form (component) file. */
 201         if (digest) {
 202                 if (issue == 0) {
 203                         snprintf(buf, sizeof(buf), IFORMAT, digest);
 204                         if (volume == 0 && (cp = context_find(buf))
 205                                         && ((issue = atoi(cp)) < 0))
 206                                 issue = 0;
 207                         issue++;
 208                 }
 209                 if (volume == 0) {
 210                         snprintf(buf, sizeof(buf), VFORMAT, digest);
 211                         if ((cp = context_find(buf)) == NULL ||
 212                                         (volume = atoi(cp)) <= 0)
 213                                 volume = 1;
 214                 }
 215                 if (!form)
 216                         form = digestcomps;
 217                 in = build_form(form, digest, volume, issue);
 218                 cpydata(in, out, form, drft);
 219                 close(in);
 220         } else {
 221                 fmtstr = new_fs(form, forwcomps);
 222                 if (write(out, fmtstr, strlen(fmtstr)) != (int)strlen(fmtstr)) {
 223                         adios(drft, "error writing");
 224                 }
 225         }
 226         close(out);
 227
 228         add_forw_hdr(drft);
 229
 230         if (digest) {
 231                 snprintf(buf, sizeof(buf), IFORMAT, digest);
 232                 snprintf(value, sizeof(value), "%d", issue);
 233                 context_replace(buf, getcpy(value));
 234                 snprintf(buf, sizeof(buf), VFORMAT, digest);
 235                 snprintf(value, sizeof(value), "%d", volume);
 236                 context_replace(buf, getcpy(value));
 237         }
 238
 239         context_replace(curfolder, folder); /* update current folder */
 240         seq_setcur(mp, mp->lowsel);  /* update current message */
 241         seq_save(mp);  /* synchronize sequences */
 242         context_save();  /* save the context file */
 243
 244         if (buildsw)
 245                 done(0);
 246         what_now(ed, NOUSE, drft, NULL, 0, mp,
 247                 anot ? "Forwarded" : NULL, cwd);
 248         done(1);
 249         return 1;
 250 }
 251
 252
 253 /*
 254 ** Create an attachment header for the to be forward messages.
 255 */
 256 static void
 257 add_forw_hdr(char *draft)
 258 {
 259         int msgnum;
 260         char buf[BUFSIZ];
 261         char *vec[MAXARGS];
 262         int vecp = 0;
 263
 264         vec[vecp++] = "anno";
 265         vec[vecp++] = "-append";
 266         vec[vecp++] = "-nodate";
 267         vec[vecp++] = draft;
 268         vec[vecp++] = "-comp";
 269         vec[vecp++] = attach_hdr;
 270         vec[vecp++] = "-text";
 271         snprintf(buf, sizeof buf, "+%s", mp->foldpath);
 272         for (msgnum = mp->lowsel; msgnum <= mp->hghsel; msgnum++) {
 273                 if (!is_selected(mp, msgnum)) {
 274                         continue;
 275                 }
 276                 if (strlen(buf) + 1 + strlen(m_name(msgnum)) + 1
 277                                 > sizeof buf) {
 278                         adios(NULL, "Attachment header line too long. "
 279                                         "Forward less messages.");
 280                 }
 281                 strcat(buf, " ");
 282                 strcat(buf, m_name(msgnum));
 283         }
 284         vec[vecp++] = buf;
 285         vec[vecp] = NULL;
 286         if (execprog(*vec, vec) != 0) {
 287                 advise(NULL, "unable to add attachment header");
 288         }
 289 }
 290
 291
 292 static int
 293 build_form(char *form, char *digest, int volume, int issue)
 294 {
 295         int in;
 296         int fmtsize;
 297         register char *fmtstr;
 298         char *line, tmpfil[BUFSIZ];
 299         FILE *tmp;
 300         register struct comp *cptr;
 301         struct format *fmt;
 302         int dat[5];
 303         char *cp = NULL;
 304
 305         /* Get new format string */
 306         fmtstr = new_fs(form, NULL);
 307         fmtsize = strlen(fmtstr) + 256;
 308
 309         /* Compile format string */
 310         fmt_compile(fmtstr, &fmt);
 311
 312         FINDCOMP(cptr, "digest");
 313         if (cptr)
 314                 cptr->c_text = digest;
 315         FINDCOMP(cptr, "date");
 316         if (cptr)
 317                 cptr->c_text = getcpy(dtimenow());
 318
 319         dat[0] = issue;
 320         dat[1] = volume;
 321         dat[2] = 0;
 322         dat[3] = fmtsize;
 323         dat[4] = 0;
 324
 325         cp = m_mktemp2(NULL, invo_name, NULL, &tmp);
 326         if (cp == NULL) adios("forw", "unable to create temporary file");
 327         strncpy(tmpfil, cp, sizeof(tmpfil));
 328         unlink(tmpfil);
 329         if ((in = dup(fileno(tmp))) == NOTOK)
 330                 adios("dup", "unable to");
 331
 332         line = mh_xmalloc((unsigned) fmtsize);
 333         fmt_scan(fmt, line, fmtsize, dat);
 334         fputs(line, tmp);
 335         free(line);
 336         if (fclose(tmp))
 337                 adios(tmpfil, "error writing");
 338
 339         lseek(in, (off_t) 0, SEEK_SET);
 340         return in;
 341 }