diplodocus.org Git - nmh/blob - uip/comp.c

   1
   2 /*
   3  * comp.c -- compose a message
   4  *
   5  * This code is Copyright (c) 2002, by the authors of nmh.  See the
   6  * COPYRIGHT file in the root directory of the nmh distribution for
   7  * complete copyright information.
   8  */
   9
  10 #include <h/mh.h>
  11 #include <h/utils.h>
  12 #include <h/fmt_scan.h>
  13 #include <fcntl.h>
  14
  15 #define COMP_SWITCHES \
  16     X("draftfolder +folder", 0, DFOLDSW) \
  17     X("draftmessage msg", 0, DMSGSW) \
  18     X("nodraftfolder", 0, NDFLDSW) \
  19     X("editor editor", 0, EDITRSW) \
  20     X("noedit", 0, NEDITSW) \
  21     X("file file", 0, FILESW) \
  22     X("form formfile", 0, FORMSW) \
  23     X("use", 0, USESW) \
  24     X("nouse", 0, NUSESW) \
  25     X("whatnowproc program", 0, WHATSW) \
  26     X("nowhatnowproc", 0, NWHATSW) \
  27     X("build", 5, BILDSW) \
  28     X("version", 0, VERSIONSW) \
  29     X("help", 0, HELPSW) \
  30     X("to address", 0, TOSW) \
  31     X("cc address", 0, CCSW) \
  32     X("from address", 0, FROMSW) \
  33     X("fcc mailbox", 0, FCCSW) \
  34     X("width colums", 0, WIDTHSW) \
  35     X("subject text", 0, SUBJECTSW) \
  36
  37 #define X(sw, minchars, id) id,
  38 DEFINE_SWITCH_ENUM(COMP);
  39 #undef X
  40
  41 #define X(sw, minchars, id) { sw, minchars, id },
  42 DEFINE_SWITCH_ARRAY(COMP, switches);
  43 #undef X
  44
  45 #define DISPO_SWITCHES \
  46     X("quit", 0, NOSW) \
  47     X("replace", 0, YESW) \
  48     X("use", 0, USELSW) \
  49     X("list", 0, LISTDSW) \
  50     X("refile +folder", 0, REFILSW) \
  51     X("new", 0, NEWSW) \
  52
  53 #define X(sw, minchars, id) id,
  54 DEFINE_SWITCH_ENUM(DISPO);
  55 #undef X
  56
  57 #define X(sw, minchars, id) { sw, minchars, id },
  58 DEFINE_SWITCH_ARRAY(DISPO, aqrunl);
  59 #undef X
  60
  61 static struct swit aqrul[] = {
  62     { "quit", 0, NOSW },
  63     { "replace", 0, YESW },
  64     { "use", 0, USELSW },
  65     { "list", 0, LISTDSW },
  66     { "refile", 0, REFILSW },
  67     { NULL, 0, 0 }
  68 };
  69
  70 int
  71 main (int argc, char **argv)
  72 {
  73     int use = NOUSE, nedit = 0, nwhat = 0, build = 0;
  74     int i, in = NOTOK, isdf = 0, out, dat[5], format_len = 0;
  75     int outputlinelen = OUTPUTLINELEN;
  76     char *cp, *cwd, *maildir, *dfolder = NULL;
  77     char *ed = NULL, *file = NULL, *form = NULL;
  78     char *folder = NULL, *msg = NULL, buf[BUFSIZ];
  79     char *to = NULL, *from = NULL, *cc = NULL, *fcc = NULL, *dp;
  80     char *subject = NULL;
  81     char drft[BUFSIZ], **argp, **arguments;
  82     struct msgs *mp = NULL;
  83     struct format *fmt;
  84     struct stat st;
  85
  86 #ifdef LOCALE
  87     setlocale(LC_ALL, "");
  88 #endif
  89     invo_name = r1bindex (argv[0], '/');
  90
  91     /* read user profile/context */
  92     context_read();
  93
  94     arguments = getarguments (invo_name, argc, argv, 1);
  95     argp = arguments;
  96
  97     while ((cp = *argp++)) {
  98         if (*cp == '-') {
  99             switch (smatch (++cp, switches)) {
 100                 case AMBIGSW:
 101                     ambigsw (cp, switches);
 102                     done (1);
 103                 case UNKWNSW:
 104                     adios (NULL, "-%s unknown", cp);
 105
 106                 case HELPSW:
 107                     snprintf (buf, sizeof(buf), "%s [+folder] [msg] [switches]",
 108                         invo_name);
 109                     print_help (buf, switches, 1);
 110                     done (0);
 111                 case VERSIONSW:
 112                     print_version(invo_name);
 113                     done (0);
 114
 115                 case EDITRSW:
 116                     if (!(ed = *argp++) || *ed == '-')
 117                         adios (NULL, "missing argument to %s", argp[-2]);
 118                     nedit = 0;
 119                     continue;
 120                 case NEDITSW:
 121                     nedit++;
 122                     continue;
 123
 124                 case WHATSW:
 125                     if (!(whatnowproc = *argp++) || *whatnowproc == '-')
 126                         adios (NULL, "missing argument to %s", argp[-2]);
 127                     nwhat = 0;
 128                     continue;
 129
 130                 case BILDSW:
 131                     build++;
 132                     /* fall through */
 133                 case NWHATSW:
 134                     nwhat++;
 135                     continue;
 136
 137                 case FORMSW:
 138                     if (!(form = *argp++) || *form == '-')
 139                         adios (NULL, "missing argument to %s", argp[-2]);
 140                     continue;
 141
 142                 case USESW:
 143                     use++;
 144                     continue;
 145                 case NUSESW:
 146                     use = NOUSE;
 147                     continue;
 148
 149                 case FILESW:    /* compatibility */
 150                     if (file)
 151                         adios (NULL, "only one file at a time!");
 152                     if (!(file = *argp++) || *file == '-')
 153                         adios (NULL, "missing argument to %s", argp[-2]);
 154                     isdf = NOTOK;
 155                     continue;
 156
 157                 case DFOLDSW:
 158                     if (dfolder)
 159                         adios (NULL, "only one draft folder at a time!");
 160                     if (!(cp = *argp++) || *cp == '-')
 161                         adios (NULL, "missing argument to %s", argp[-2]);
 162                     dfolder = path (*cp == '+' || *cp == '@' ? cp + 1 : cp,
 163                             *cp != '@' ? TFOLDER : TSUBCWF);
 164                     continue;
 165                 case DMSGSW:
 166                     if (file)
 167                         adios (NULL, "only one draft message at a time!");
 168                     if (!(file = *argp++) || *file == '-')
 169                         adios (NULL, "missing argument to %s", argp[-2]);
 170                     continue;
 171                 case NDFLDSW:
 172                     dfolder = NULL;
 173                     isdf = NOTOK;
 174                     continue;
 175
 176                 case TOSW:
 177                     if (!(cp = *argp++) || *cp == '-')
 178                         adios (NULL, "missing argument to %s", argp[-2]);
 179                     to = addlist(to, cp);
 180                     continue;
 181
 182                 case CCSW:
 183                     if (!(cp = *argp++) || *cp == '-')
 184                         adios (NULL, "missing argument to %s", argp[-2]);
 185                     cc = addlist(cc, cp);
 186                     continue;
 187
 188                 case FROMSW:
 189                     if (!(cp = *argp++) || *cp == '-')
 190                         adios (NULL, "missing argument to %s", argp[-2]);
 191                     from = addlist(from, cp);
 192                     continue;
 193
 194                 case FCCSW:
 195                     if (!(cp = *argp++) || *cp == '-')
 196                         adios (NULL, "missing argument to %s", argp[-2]);
 197                     dp = NULL;
 198                     if (*cp == '@')
 199                         cp = dp = path(cp + 1, TSUBCWF);
 200                     fcc = addlist(fcc, cp);
 201                     if (dp)
 202                         free(dp);
 203                     continue;
 204
 205                 case WIDTHSW:
 206                     if (!(cp = *argp++) || *cp == '-')
 207                         adios (NULL, "missing argument to %s", argp[-2]);
 208                     if ((outputlinelen = atoi(cp)) < 10)
 209                         adios (NULL, "impossible width %d", outputlinelen);
 210                     continue;
 211
 212                 case SUBJECTSW:
 213                     if (!(cp = *argp++) || *cp == '-')
 214                         adios (NULL, "missing argument to %s", argp[-2]);
 215                     subject = cp;
 216                     continue;
 217             }
 218         }
 219         if (*cp == '+' || *cp == '@') {
 220             if (folder)
 221                 adios (NULL, "only one folder at a time!");
 222             else
 223                 folder = pluspath (cp);
 224         } else {
 225             if (msg)
 226                 adios (NULL, "only one message at a time!");
 227             else
 228                 msg = cp;
 229         }
 230     }
 231
 232     cwd = getcpy (pwd ());
 233
 234     if (!context_find ("path"))
 235         free (path ("./", TFOLDER));
 236
 237     /*
 238      * Check if we are using a draft folder
 239      * and have specified a message in it.
 240      */
 241     if ((dfolder || context_find ("Draft-Folder")) && !folder && msg && !file) {
 242         file = msg;
 243         msg = NULL;
 244     }
 245     if (form && (folder || msg))
 246             adios (NULL, "can't mix forms and folders/msgs");
 247
 248     cp = NULL;
 249
 250     if (folder || msg) {
 251         /*
 252          * Use a message as the "form" for the new message.
 253          */
 254         if (!msg)
 255             msg = "cur";
 256         if (!folder)
 257             folder = getfolder (1);
 258         maildir = m_maildir (folder);
 259
 260         if (chdir (maildir) == NOTOK)
 261             adios (maildir, "unable to change directory to");
 262
 263         /* read folder and create message structure */
 264         if (!(mp = folder_read (folder, 1)))
 265             adios (NULL, "unable to read folder %s", folder);
 266
 267         /* check for empty folder */
 268         if (mp->nummsg == 0)
 269             adios (NULL, "no messages in %s", folder);
 270
 271         /* parse the message range/sequence/name and set SELECTED */
 272         if (!m_convert (mp, msg))
 273             done (1);
 274         seq_setprev (mp);       /* set the previous-sequence */
 275         seq_save (mp);
 276
 277         if (mp->numsel > 1)
 278             adios (NULL, "only one message at a time!");
 279
 280         if ((in = open (form = getcpy (m_name (mp->lowsel)), O_RDONLY)) == NOTOK)
 281             adios (form, "unable to open message");
 282     } else {
 283         struct comp *cptr;
 284
 285         if (! form)
 286             form = components;
 287
 288         cp = new_fs(form, NULL, NULL);
 289         format_len = strlen(cp);
 290         fmt_compile(cp, &fmt, 1);
 291
 292         /*
 293          * Set up any components that were fed to us on the command line
 294          */
 295
 296         if (from) {
 297             cptr = fmt_findcomp("from");
 298             if (cptr)
 299                 cptr->c_text = from;
 300         }
 301         if (to) {
 302             cptr = fmt_findcomp("to");
 303             if (cptr)
 304                 cptr->c_text = to;
 305         }
 306         if (cc) {
 307             cptr = fmt_findcomp("cc");
 308             if (cptr)
 309                 cptr->c_text = cc;
 310         }
 311         if (fcc) {
 312             cptr = fmt_findcomp("fcc");
 313             if (cptr)
 314                 cptr->c_text = fcc;
 315         }
 316         if (subject) {
 317             cptr = fmt_findcomp("subject");
 318             if (cptr)
 319                 cptr->c_text = subject;
 320         }
 321     }
 322
 323 try_it_again:
 324     strncpy (drft, build ? m_maildir ("draft")
 325                         : m_draft (dfolder, file, use, &isdf), sizeof(drft));
 326
 327     /*
 328      * Check if we have an existing draft
 329      */
 330     if (!build && (out = open (drft, O_RDONLY)) != NOTOK) {
 331         i = fdcompare (in, out);
 332         close (out);
 333
 334         /*
 335          * If we have given -use flag, or if the
 336          * draft is just the same as the components
 337          * file, then no need to ask any questions.
 338          */
 339         if (use || i)
 340             goto edit_it;
 341
 342         if (stat (drft, &st) == NOTOK)
 343             adios (drft, "unable to stat");
 344         printf ("Draft \"%s\" exists (%ld bytes).", drft, (long) st.st_size);
 345         for (i = LISTDSW; i != YESW;) {
 346             if (!(argp = getans ("\nDisposition? ", isdf ? aqrunl : aqrul)))
 347                 done (1);
 348             switch (i = smatch (*argp, isdf ? aqrunl : aqrul)) {
 349                 case NOSW:
 350                     done (0);
 351                 case NEWSW:
 352                     file = NULL;
 353                     use = NOUSE;
 354                     goto try_it_again;
 355                 case YESW:
 356                     break;
 357                 case USELSW:
 358                     use++;
 359                     goto edit_it;
 360                 case LISTDSW:
 361                     showfile (++argp, drft);
 362                     break;
 363                 case REFILSW:
 364                     if (refile (++argp, drft) == 0)
 365                         i = YESW;
 366                     break;
 367                 default:
 368                     advise (NULL, "say what?");
 369                     break;
 370             }
 371         }
 372     } else {
 373         if (use)
 374             adios (drft, "unable to open");
 375     }
 376
 377     if ((out = creat (drft, m_gmprot ())) == NOTOK)
 378         adios (drft, "unable to create");
 379     if (cp) {
 380         char *scanl;
 381
 382         i = format_len + 1024;
 383         scanl = mh_xmalloc((size_t) i + 2);
 384         dat[0] = 0;
 385         dat[1] = 0;
 386         dat[2] = 0;
 387         dat[3] = outputlinelen;
 388         dat[4] = 0;
 389         fmt_scan(fmt, scanl, i + 1, i, dat, NULL);
 390         write(out, scanl, strlen(scanl));
 391         free(scanl);
 392     } else {
 393         cpydata (in, out, form, drft);
 394         close (in);
 395     }
 396     close (out);
 397
 398 edit_it:
 399     context_save ();    /* save the context file */
 400
 401     if (nwhat)
 402         done (0);
 403     what_now (ed, nedit, use, drft, NULL, 0, NULLMP, NULL, 0, cwd, 0);
 404     done (1);
 405     return 1;
 406 }