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

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