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