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/error.h"
  10 #include "h/utils.h"
  11 #include "h/fmt_scan.h"
  12 #include "h/done.h"
  13 #include "sbr/m_maildir.h"
  14 #include <fcntl.h>
  15
  16 #define COMP_SWITCHES \
  17     X("draftfolder +folder", 0, DFOLDSW) \
  18     X("draftmessage msg", 0, DMSGSW) \
  19     X("nodraftfolder", 0, NDFLDSW) \
  20     X("editor editor", 0, EDITRSW) \
  21     X("noedit", 0, NEDITSW) \
  22     X("file file", 0, FILESW) \
  23     X("form formfile", 0, FORMSW) \
  24     X("use", 0, USESW) \
  25     X("nouse", 0, NUSESW) \
  26     X("whatnowproc program", 0, WHATSW) \
  27     X("nowhatnowproc", 0, NWHATSW) \
  28     X("build", 5, BILDSW) \
  29     X("version", 0, VERSIONSW) \
  30     X("help", 0, HELPSW) \
  31     X("to address", 0, TOSW) \
  32     X("cc address", 0, CCSW) \
  33     X("from address", 0, FROMSW) \
  34     X("fcc mailbox", 0, FCCSW) \
  35     X("width columns", 0, WIDTHSW) \
  36     X("subject text", 0, SUBJECTSW) \
  37
  38 #define X(sw, minchars, id) id,
  39 DEFINE_SWITCH_ENUM(COMP);
  40 #undef X
  41
  42 #define X(sw, minchars, id) { sw, minchars, id },
  43 DEFINE_SWITCH_ARRAY(COMP, switches);
  44 #undef X
  45
  46 #define DISPO_SWITCHES \
  47     X("quit", 0, NOSW) \
  48     X("replace", 0, YESW) \
  49     X("use", 0, USELSW) \
  50     X("list", 0, LISTDSW) \
  51     X("refile +folder", 0, REFILSW) \
  52     X("new", 0, NEWSW) \
  53
  54 #define X(sw, minchars, id) id,
  55 DEFINE_SWITCH_ENUM(DISPO);
  56 #undef X
  57
  58 #define X(sw, minchars, id) { sw, minchars, id },
  59 DEFINE_SWITCH_ARRAY(DISPO, aqrunl);
  60 #undef X
  61
  62 static struct swit aqrul[] = {
  63     { "quit", 0, NOSW },
  64     { "replace", 0, YESW },
  65     { "use", 0, USELSW },
  66     { "list", 0, LISTDSW },
  67     { "refile", 0, REFILSW },
  68     { NULL, 0, 0 }
  69 };
  70
  71 int
  72 main (int argc, char **argv)
  73 {
  74     int use = NOUSE;
  75     bool nedit = false;
  76     bool nwhat = false;
  77     bool build = false;
  78     int i, in = NOTOK, isdf = 0, out, dat[5], format_len = 0;
  79     int outputlinelen = OUTPUTLINELEN;
  80     char *cp, *cwd, *maildir, *dfolder = NULL;
  81     char *ed = NULL, *file = NULL, *form = NULL;
  82     char *folder = NULL, *msg = NULL, buf[BUFSIZ];
  83     char *to = NULL, *from = NULL, *cc = NULL, *fcc = NULL, *dp;
  84     char *subject = NULL;
  85     char drft[BUFSIZ], **argp, **arguments;
  86     struct msgs *mp = NULL;
  87     struct format *fmt;
  88     struct stat st;
  89
  90     if (nmh_init(argv[0], true, true)) { return 1; }
  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                     die("-%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                         die("missing argument to %s", argp[-2]);
 116                     nedit = false;
 117                     continue;
 118                 case NEDITSW:
 119                     nedit = true;
 120                     continue;
 121
 122                 case WHATSW:
 123                     if (!(whatnowproc = *argp++) || *whatnowproc == '-')
 124                         die("missing argument to %s", argp[-2]);
 125                     nwhat = false;
 126                     continue;
 127
 128                 case BILDSW:
 129                     build = true;
 130                     /* FALLTHRU */
 131                 case NWHATSW:
 132                     nwhat = true;
 133                     continue;
 134
 135                 case FORMSW:
 136                     if (!(form = *argp++) || *form == '-')
 137                         die("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                         die("only one file at a time!");
 150                     if (!(file = *argp++) || *file == '-')
 151                         die("missing argument to %s", argp[-2]);
 152                     isdf = NOTOK;
 153                     continue;
 154
 155                 case DFOLDSW:
 156                     if (dfolder)
 157                         die("only one draft folder at a time!");
 158                     if (!(cp = *argp++) || *cp == '-')
 159                         die("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                         die("only one draft message at a time!");
 166                     if (!(file = *argp++) || *file == '-')
 167                         die("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                         die("missing argument to %s", argp[-2]);
 177                     to = addlist(to, cp);
 178                     continue;
 179
 180                 case CCSW:
 181                     if (!(cp = *argp++) || *cp == '-')
 182                         die("missing argument to %s", argp[-2]);
 183                     cc = addlist(cc, cp);
 184                     continue;
 185
 186                 case FROMSW:
 187                     if (!(cp = *argp++) || *cp == '-')
 188                         die("missing argument to %s", argp[-2]);
 189                     from = addlist(from, cp);
 190                     continue;
 191
 192                 case FCCSW:
 193                     if (!(cp = *argp++) || *cp == '-')
 194                         die("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                     free(dp);
 200                     continue;
 201
 202                 case WIDTHSW:
 203                     if (!(cp = *argp++) || *cp == '-')
 204                         die("missing argument to %s", argp[-2]);
 205                     if ((outputlinelen = atoi(cp)) < 10)
 206                         die("impossible width %d", outputlinelen);
 207                     continue;
 208
 209                 case SUBJECTSW:
 210                     if (!(cp = *argp++) || *cp == '-')
 211                         die("missing argument to %s", argp[-2]);
 212                     subject = cp;
 213                     continue;
 214             }
 215         }
 216         if (*cp == '+' || *cp == '@') {
 217             if (folder)
 218                 die("only one folder at a time!");
 219             folder = pluspath (cp);
 220         } else {
 221             if (msg)
 222                 die("only one message at a time!");
 223             msg = cp;
 224         }
 225     }
 226
 227     cwd = mh_xstrdup(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             die("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, 1)))
 260             die("unable to read folder %s", folder);
 261
 262         /* check for empty folder */
 263         if (mp->nummsg == 0)
 264             die("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         seq_save (mp);
 271
 272         if (mp->numsel > 1)
 273             die("only one message at a time!");
 274
 275         if ((in = open (form = mh_xstrdup(m_name (mp->lowsel)), O_RDONLY)) == NOTOK)
 276             adios (form, "unable to open message");
 277     } else {
 278         struct comp *cptr;
 279
 280         if (! form)
 281             form = components;
 282
 283         cp = new_fs(form, NULL, NULL);
 284         format_len = strlen(cp);
 285         fmt_compile(cp, &fmt, 1);
 286
 287         /*
 288          * Set up any components that were fed to us on the command line
 289          */
 290
 291         if (from) {
 292             cptr = fmt_findcomp("from");
 293             if (cptr)
 294                 cptr->c_text = from;
 295         }
 296         if (to) {
 297             cptr = fmt_findcomp("to");
 298             if (cptr)
 299                 cptr->c_text = to;
 300         }
 301         if (cc) {
 302             cptr = fmt_findcomp("cc");
 303             if (cptr)
 304                 cptr->c_text = cc;
 305         }
 306         if (fcc) {
 307             cptr = fmt_findcomp("fcc");
 308             if (cptr)
 309                 cptr->c_text = fcc;
 310         }
 311         if (subject) {
 312             cptr = fmt_findcomp("subject");
 313             if (cptr)
 314                 cptr->c_text = subject;
 315         }
 316     }
 317
 318 try_it_again:
 319     strncpy (drft, build ? m_maildir ("draft")
 320                         : m_draft (dfolder, file, use, &isdf), sizeof(drft));
 321
 322     /*
 323      * Check if we have an existing draft
 324      */
 325     if (!build && (out = open (drft, O_RDONLY)) != NOTOK) {
 326         i = fdcompare (in, out);
 327         close (out);
 328
 329         /*
 330          * If we have given -use flag, or if the
 331          * draft is just the same as the components
 332          * file, then no need to ask any questions.
 333          */
 334         if (use || i)
 335             goto edit_it;
 336
 337         if (stat (drft, &st) == NOTOK)
 338             adios (drft, "unable to stat");
 339         printf ("Draft \"%s\" exists (%ld bytes).", drft, (long) st.st_size);
 340         for (i = LISTDSW; i != YESW;) {
 341             if (!(argp = read_switch_multiword ("\nDisposition? ",
 342                                                 isdf ? aqrunl : aqrul)))
 343                 done (1);
 344             switch (i = smatch (*argp, isdf ? aqrunl : aqrul)) {
 345                 case NOSW:
 346                     done (0);
 347                 case NEWSW:
 348                     file = NULL;
 349                     use = NOUSE;
 350                     goto try_it_again;
 351                 case YESW:
 352                     break;
 353                 case USELSW:
 354                     use++;
 355                     goto edit_it;
 356                 case LISTDSW:
 357                     showfile (++argp, drft);
 358                     break;
 359                 case REFILSW:
 360                     if (refile (++argp, drft) == 0)
 361                         i = YESW;
 362                     break;
 363                 default:
 364                     inform("say what?");
 365                     break;
 366             }
 367         }
 368     } else {
 369         if (use)
 370             adios (drft, "unable to open");
 371     }
 372
 373     if ((out = creat (drft, m_gmprot ())) == NOTOK)
 374         adios (drft, "unable to create");
 375     if (cp) {
 376         charstring_t scanl;
 377
 378         i = format_len + 1024;
 379         scanl = charstring_create (i + 2);
 380         dat[0] = 0;
 381         dat[1] = 0;
 382         dat[2] = 0;
 383         dat[3] = outputlinelen;
 384         dat[4] = 0;
 385         fmt_scan(fmt, scanl, i, dat, NULL);
 386         if (write(out, charstring_buffer (scanl),
 387                   charstring_bytes (scanl)) < 0) {
 388             advise (drft, "write");
 389         }
 390         charstring_free(scanl);
 391     } else {
 392         cpydata (in, out, form, drft);
 393         close (in);
 394     }
 395     close (out);
 396
 397 edit_it:
 398     context_save ();    /* save the context file */
 399
 400     if (nwhat)
 401         done (0);
 402     what_now (ed, nedit, use, drft, NULL, 0, NULL, NULL, 0, cwd, 0);
 403     done (1);
 404     return 1;
 405 }