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