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 "sbr/ambigsw.h"
  10 #include "sbr/path.h"
  11 #include "sbr/print_version.h"
  12 #include "sbr/print_help.h"
  13 #include "sbr/error.h"
  14 #include "h/utils.h"
  15 #include "h/fmt_scan.h"
  16 #include "h/done.h"
  17 #include "sbr/m_maildir.h"
  18 #include <fcntl.h>
  19
  20 #define COMP_SWITCHES \
  21     X("draftfolder +folder", 0, DFOLDSW) \
  22     X("draftmessage msg", 0, DMSGSW) \
  23     X("nodraftfolder", 0, NDFLDSW) \
  24     X("editor editor", 0, EDITRSW) \
  25     X("noedit", 0, NEDITSW) \
  26     X("file file", 0, FILESW) \
  27     X("form formfile", 0, FORMSW) \
  28     X("use", 0, USESW) \
  29     X("nouse", 0, NUSESW) \
  30     X("whatnowproc program", 0, WHATSW) \
  31     X("nowhatnowproc", 0, NWHATSW) \
  32     X("build", 5, BILDSW) \
  33     X("version", 0, VERSIONSW) \
  34     X("help", 0, HELPSW) \
  35     X("to address", 0, TOSW) \
  36     X("cc address", 0, CCSW) \
  37     X("from address", 0, FROMSW) \
  38     X("fcc mailbox", 0, FCCSW) \
  39     X("width columns", 0, WIDTHSW) \
  40     X("subject text", 0, SUBJECTSW) \
  41
  42 #define X(sw, minchars, id) id,
  43 DEFINE_SWITCH_ENUM(COMP);
  44 #undef X
  45
  46 #define X(sw, minchars, id) { sw, minchars, id },
  47 DEFINE_SWITCH_ARRAY(COMP, switches);
  48 #undef X
  49
  50 #define DISPO_SWITCHES \
  51     X("quit", 0, NOSW) \
  52     X("replace", 0, YESW) \
  53     X("use", 0, USELSW) \
  54     X("list", 0, LISTDSW) \
  55     X("refile +folder", 0, REFILSW) \
  56     X("new", 0, NEWSW) \
  57
  58 #define X(sw, minchars, id) id,
  59 DEFINE_SWITCH_ENUM(DISPO);
  60 #undef X
  61
  62 #define X(sw, minchars, id) { sw, minchars, id },
  63 DEFINE_SWITCH_ARRAY(DISPO, aqrunl);
  64 #undef X
  65
  66 static struct swit aqrul[] = {
  67     { "quit", 0, NOSW },
  68     { "replace", 0, YESW },
  69     { "use", 0, USELSW },
  70     { "list", 0, LISTDSW },
  71     { "refile", 0, REFILSW },
  72     { NULL, 0, 0 }
  73 };
  74
  75 int
  76 main (int argc, char **argv)
  77 {
  78     int use = NOUSE;
  79     bool nedit = false;
  80     bool nwhat = false;
  81     bool build = false;
  82     int i, in = NOTOK, isdf = 0, out, dat[5], format_len = 0;
  83     int outputlinelen = OUTPUTLINELEN;
  84     char *cp, *cwd, *maildir, *dfolder = NULL;
  85     char *ed = NULL, *file = NULL, *form = NULL;
  86     char *folder = NULL, *msg = NULL, buf[BUFSIZ];
  87     char *to = NULL, *from = NULL, *cc = NULL, *fcc = NULL, *dp;
  88     char *subject = NULL;
  89     char drft[BUFSIZ], **argp, **arguments;
  90     struct msgs *mp = NULL;
  91     struct format *fmt;
  92     struct stat st;
  93
  94     if (nmh_init(argv[0], true, true)) { return 1; }
  95
  96     arguments = getarguments (invo_name, argc, argv, 1);
  97     argp = arguments;
  98
  99     while ((cp = *argp++)) {
 100         if (*cp == '-') {
 101             switch (smatch (++cp, switches)) {
 102                 case AMBIGSW:
 103                     ambigsw (cp, switches);
 104                     done (1);
 105                 case UNKWNSW:
 106                     die("-%s unknown", cp);
 107
 108                 case HELPSW:
 109                     snprintf (buf, sizeof(buf), "%s [+folder] [msg] [switches]",
 110                         invo_name);
 111                     print_help (buf, switches, 1);
 112                     done (0);
 113                 case VERSIONSW:
 114                     print_version(invo_name);
 115                     done (0);
 116
 117                 case EDITRSW:
 118                     if (!(ed = *argp++) || *ed == '-')
 119                         die("missing argument to %s", argp[-2]);
 120                     nedit = false;
 121                     continue;
 122                 case NEDITSW:
 123                     nedit = true;
 124                     continue;
 125
 126                 case WHATSW:
 127                     if (!(whatnowproc = *argp++) || *whatnowproc == '-')
 128                         die("missing argument to %s", argp[-2]);
 129                     nwhat = false;
 130                     continue;
 131
 132                 case BILDSW:
 133                     build = true;
 134                     /* FALLTHRU */
 135                 case NWHATSW:
 136                     nwhat = true;
 137                     continue;
 138
 139                 case FORMSW:
 140                     if (!(form = *argp++) || *form == '-')
 141                         die("missing argument to %s", argp[-2]);
 142                     continue;
 143
 144                 case USESW:
 145                     use++;
 146                     continue;
 147                 case NUSESW:
 148                     use = NOUSE;
 149                     continue;
 150
 151                 case FILESW:    /* compatibility */
 152                     if (file)
 153                         die("only one file at a time!");
 154                     if (!(file = *argp++) || *file == '-')
 155                         die("missing argument to %s", argp[-2]);
 156                     isdf = NOTOK;
 157                     continue;
 158
 159                 case DFOLDSW:
 160                     if (dfolder)
 161                         die("only one draft folder at a time!");
 162                     if (!(cp = *argp++) || *cp == '-')
 163                         die("missing argument to %s", argp[-2]);
 164                     dfolder = path (*cp == '+' || *cp == '@' ? cp + 1 : cp,
 165                             *cp != '@' ? TFOLDER : TSUBCWF);
 166                     continue;
 167                 case DMSGSW:
 168                     if (file)
 169                         die("only one draft message at a time!");
 170                     if (!(file = *argp++) || *file == '-')
 171                         die("missing argument to %s", argp[-2]);
 172                     continue;
 173                 case NDFLDSW:
 174                     dfolder = NULL;
 175                     isdf = NOTOK;
 176                     continue;
 177
 178                 case TOSW:
 179                     if (!(cp = *argp++) || *cp == '-')
 180                         die("missing argument to %s", argp[-2]);
 181                     to = addlist(to, cp);
 182                     continue;
 183
 184                 case CCSW:
 185                     if (!(cp = *argp++) || *cp == '-')
 186                         die("missing argument to %s", argp[-2]);
 187                     cc = addlist(cc, cp);
 188                     continue;
 189
 190                 case FROMSW:
 191                     if (!(cp = *argp++) || *cp == '-')
 192                         die("missing argument to %s", argp[-2]);
 193                     from = addlist(from, cp);
 194                     continue;
 195
 196                 case FCCSW:
 197                     if (!(cp = *argp++) || *cp == '-')
 198                         die("missing argument to %s", argp[-2]);
 199                     dp = NULL;
 200                     if (*cp == '@')
 201                         cp = dp = path(cp + 1, TSUBCWF);
 202                     fcc = addlist(fcc, cp);
 203                     free(dp);
 204                     continue;
 205
 206                 case WIDTHSW:
 207                     if (!(cp = *argp++) || *cp == '-')
 208                         die("missing argument to %s", argp[-2]);
 209                     if ((outputlinelen = atoi(cp)) < 10)
 210                         die("impossible width %d", outputlinelen);
 211                     continue;
 212
 213                 case SUBJECTSW:
 214                     if (!(cp = *argp++) || *cp == '-')
 215                         die("missing argument to %s", argp[-2]);
 216                     subject = cp;
 217                     continue;
 218             }
 219         }
 220         if (*cp == '+' || *cp == '@') {
 221             if (folder)
 222                 die("only one folder at a time!");
 223             folder = pluspath (cp);
 224         } else {
 225             if (msg)
 226                 die("only one message at a time!");
 227             msg = cp;
 228         }
 229     }
 230
 231     cwd = mh_xstrdup(pwd ());
 232
 233     if (!context_find ("path"))
 234         free (path ("./", TFOLDER));
 235
 236     /*
 237      * Check if we are using a draft folder
 238      * and have specified a message in it.
 239      */
 240     if ((dfolder || context_find ("Draft-Folder")) && !folder && msg && !file) {
 241         file = msg;
 242         msg = NULL;
 243     }
 244     if (form && (folder || msg))
 245             die("can't mix forms and folders/msgs");
 246
 247     cp = NULL;
 248
 249     if (folder || msg) {
 250         /*
 251          * Use a message as the "form" for the new message.
 252          */
 253         if (!msg)
 254             msg = "cur";
 255         if (!folder)
 256             folder = getfolder (1);
 257         maildir = m_maildir (folder);
 258
 259         if (chdir (maildir) == NOTOK)
 260             adios (maildir, "unable to change directory to");
 261
 262         /* read folder and create message structure */
 263         if (!(mp = folder_read (folder, 1)))
 264             die("unable to read folder %s", folder);
 265
 266         /* check for empty folder */
 267         if (mp->nummsg == 0)
 268             die("no messages in %s", folder);
 269
 270         /* parse the message range/sequence/name and set SELECTED */
 271         if (!m_convert (mp, msg))
 272             done (1);
 273         seq_setprev (mp);       /* set the previous-sequence */
 274         seq_save (mp);
 275
 276         if (mp->numsel > 1)
 277             die("only one message at a time!");
 278
 279         if ((in = open (form = mh_xstrdup(m_name (mp->lowsel)), O_RDONLY)) == NOTOK)
 280             adios (form, "unable to open message");
 281     } else {
 282         struct comp *cptr;
 283
 284         if (! form)
 285             form = components;
 286
 287         cp = new_fs(form, NULL, NULL);
 288         format_len = strlen(cp);
 289         fmt_compile(cp, &fmt, 1);
 290
 291         /*
 292          * Set up any components that were fed to us on the command line
 293          */
 294
 295         if (from) {
 296             cptr = fmt_findcomp("from");
 297             if (cptr)
 298                 cptr->c_text = from;
 299         }
 300         if (to) {
 301             cptr = fmt_findcomp("to");
 302             if (cptr)
 303                 cptr->c_text = to;
 304         }
 305         if (cc) {
 306             cptr = fmt_findcomp("cc");
 307             if (cptr)
 308                 cptr->c_text = cc;
 309         }
 310         if (fcc) {
 311             cptr = fmt_findcomp("fcc");
 312             if (cptr)
 313                 cptr->c_text = fcc;
 314         }
 315         if (subject) {
 316             cptr = fmt_findcomp("subject");
 317             if (cptr)
 318                 cptr->c_text = subject;
 319         }
 320     }
 321
 322 try_it_again:
 323     strncpy (drft, build ? m_maildir ("draft")
 324                         : m_draft (dfolder, file, use, &isdf), sizeof(drft));
 325
 326     /*
 327      * Check if we have an existing draft
 328      */
 329     if (!build && (out = open (drft, O_RDONLY)) != NOTOK) {
 330         i = fdcompare (in, out);
 331         close (out);
 332
 333         /*
 334          * If we have given -use flag, or if the
 335          * draft is just the same as the components
 336          * file, then no need to ask any questions.
 337          */
 338         if (use || i)
 339             goto edit_it;
 340
 341         if (stat (drft, &st) == NOTOK)
 342             adios (drft, "unable to stat");
 343         printf ("Draft \"%s\" exists (%ld bytes).", drft, (long) st.st_size);
 344         for (i = LISTDSW; i != YESW;) {
 345             if (!(argp = read_switch_multiword ("\nDisposition? ",
 346                                                 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                     inform("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         charstring_t scanl;
 381
 382         i = format_len + 1024;
 383         scanl = charstring_create (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, dat, NULL);
 390         if (write(out, charstring_buffer (scanl),
 391                   charstring_bytes (scanl)) < 0) {
 392             advise (drft, "write");
 393         }
 394         charstring_free(scanl);
 395     } else {
 396         cpydata (in, out, form, drft);
 397         close (in);
 398     }
 399     close (out);
 400
 401 edit_it:
 402     context_save ();    /* save the context file */
 403
 404     if (nwhat)
 405         done (0);
 406     what_now (ed, nedit, use, drft, NULL, 0, NULL, NULL, 0, cwd, 0);
 407     done (1);
 408     return 1;
 409 }