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