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/path.h"
  10 #include "sbr/print_version.h"
  11 #include "sbr/print_help.h"
  12 #include "sbr/error.h"
  13 #include "h/utils.h"
  14 #include "h/fmt_scan.h"
  15 #include "h/done.h"
  16 #include "sbr/m_maildir.h"
  17 #include <fcntl.h>
  18
  19 #define COMP_SWITCHES \
  20     X("draftfolder +folder", 0, DFOLDSW) \
  21     X("draftmessage msg", 0, DMSGSW) \
  22     X("nodraftfolder", 0, NDFLDSW) \
  23     X("editor editor", 0, EDITRSW) \
  24     X("noedit", 0, NEDITSW) \
  25     X("file file", 0, FILESW) \
  26     X("form formfile", 0, FORMSW) \
  27     X("use", 0, USESW) \
  28     X("nouse", 0, NUSESW) \
  29     X("whatnowproc program", 0, WHATSW) \
  30     X("nowhatnowproc", 0, NWHATSW) \
  31     X("build", 5, BILDSW) \
  32     X("version", 0, VERSIONSW) \
  33     X("help", 0, HELPSW) \
  34     X("to address", 0, TOSW) \
  35     X("cc address", 0, CCSW) \
  36     X("from address", 0, FROMSW) \
  37     X("fcc mailbox", 0, FCCSW) \
  38     X("width columns", 0, WIDTHSW) \
  39     X("subject text", 0, SUBJECTSW) \
  40
  41 #define X(sw, minchars, id) id,
  42 DEFINE_SWITCH_ENUM(COMP);
  43 #undef X
  44
  45 #define X(sw, minchars, id) { sw, minchars, id },
  46 DEFINE_SWITCH_ARRAY(COMP, switches);
  47 #undef X
  48
  49 #define DISPO_SWITCHES \
  50     X("quit", 0, NOSW) \
  51     X("replace", 0, YESW) \
  52     X("use", 0, USELSW) \
  53     X("list", 0, LISTDSW) \
  54     X("refile +folder", 0, REFILSW) \
  55     X("new", 0, NEWSW) \
  56
  57 #define X(sw, minchars, id) id,
  58 DEFINE_SWITCH_ENUM(DISPO);
  59 #undef X
  60
  61 #define X(sw, minchars, id) { sw, minchars, id },
  62 DEFINE_SWITCH_ARRAY(DISPO, aqrunl);
  63 #undef X
  64
  65 static struct swit aqrul[] = {
  66     { "quit", 0, NOSW },
  67     { "replace", 0, YESW },
  68     { "use", 0, USELSW },
  69     { "list", 0, LISTDSW },
  70     { "refile", 0, REFILSW },
  71     { NULL, 0, 0 }
  72 };
  73
  74 int
  75 main (int argc, char **argv)
  76 {
  77     int use = NOUSE;
  78     bool nedit = false;
  79     bool nwhat = false;
  80     bool build = false;
  81     int i, in = NOTOK, isdf = 0, out, dat[5], format_len = 0;
  82     int outputlinelen = OUTPUTLINELEN;
  83     char *cp, *cwd, *maildir, *dfolder = NULL;
  84     char *ed = NULL, *file = NULL, *form = NULL;
  85     char *folder = NULL, *msg = NULL, buf[BUFSIZ];
  86     char *to = NULL, *from = NULL, *cc = NULL, *fcc = NULL, *dp;
  87     char *subject = NULL;
  88     char drft[BUFSIZ], **argp, **arguments;
  89     struct msgs *mp = NULL;
  90     struct format *fmt;
  91     struct stat st;
  92
  93     if (nmh_init(argv[0], true, true)) { return 1; }
  94
  95     arguments = getarguments (invo_name, argc, argv, 1);
  96     argp = arguments;
  97
  98     while ((cp = *argp++)) {
  99         if (*cp == '-') {
 100             switch (smatch (++cp, switches)) {
 101                 case AMBIGSW:
 102                     ambigsw (cp, switches);
 103                     done (1);
 104                 case UNKWNSW:
 105                     die("-%s unknown", cp);
 106
 107                 case HELPSW:
 108                     snprintf (buf, sizeof(buf), "%s [+folder] [msg] [switches]",
 109                         invo_name);
 110                     print_help (buf, switches, 1);
 111                     done (0);
 112                 case VERSIONSW:
 113                     print_version(invo_name);
 114                     done (0);
 115
 116                 case EDITRSW:
 117                     if (!(ed = *argp++) || *ed == '-')
 118                         die("missing argument to %s", argp[-2]);
 119                     nedit = false;
 120                     continue;
 121                 case NEDITSW:
 122                     nedit = true;
 123                     continue;
 124
 125                 case WHATSW:
 126                     if (!(whatnowproc = *argp++) || *whatnowproc == '-')
 127                         die("missing argument to %s", argp[-2]);
 128                     nwhat = false;
 129                     continue;
 130
 131                 case BILDSW:
 132                     build = true;
 133                     /* FALLTHRU */
 134                 case NWHATSW:
 135                     nwhat = true;
 136                     continue;
 137
 138                 case FORMSW:
 139                     if (!(form = *argp++) || *form == '-')
 140                         die("missing argument to %s", argp[-2]);
 141                     continue;
 142
 143                 case USESW:
 144                     use++;
 145                     continue;
 146                 case NUSESW:
 147                     use = NOUSE;
 148                     continue;
 149
 150                 case FILESW:    /* compatibility */
 151                     if (file)
 152                         die("only one file at a time!");
 153                     if (!(file = *argp++) || *file == '-')
 154                         die("missing argument to %s", argp[-2]);
 155                     isdf = NOTOK;
 156                     continue;
 157
 158                 case DFOLDSW:
 159                     if (dfolder)
 160                         die("only one draft folder at a time!");
 161                     if (!(cp = *argp++) || *cp == '-')
 162                         die("missing argument to %s", argp[-2]);
 163                     dfolder = path (*cp == '+' || *cp == '@' ? cp + 1 : cp,
 164                             *cp != '@' ? TFOLDER : TSUBCWF);
 165                     continue;
 166                 case DMSGSW:
 167                     if (file)
 168                         die("only one draft message at a time!");
 169                     if (!(file = *argp++) || *file == '-')
 170                         die("missing argument to %s", argp[-2]);
 171                     continue;
 172                 case NDFLDSW:
 173                     dfolder = NULL;
 174                     isdf = NOTOK;
 175                     continue;
 176
 177                 case TOSW:
 178                     if (!(cp = *argp++) || *cp == '-')
 179                         die("missing argument to %s", argp[-2]);
 180                     to = addlist(to, cp);
 181                     continue;
 182
 183                 case CCSW:
 184                     if (!(cp = *argp++) || *cp == '-')
 185                         die("missing argument to %s", argp[-2]);
 186                     cc = addlist(cc, cp);
 187                     continue;
 188
 189                 case FROMSW:
 190                     if (!(cp = *argp++) || *cp == '-')
 191                         die("missing argument to %s", argp[-2]);
 192                     from = addlist(from, cp);
 193                     continue;
 194
 195                 case FCCSW:
 196                     if (!(cp = *argp++) || *cp == '-')
 197                         die("missing argument to %s", argp[-2]);
 198                     dp = NULL;
 199                     if (*cp == '@')
 200                         cp = dp = path(cp + 1, TSUBCWF);
 201                     fcc = addlist(fcc, cp);
 202                     free(dp);
 203                     continue;
 204
 205                 case WIDTHSW:
 206                     if (!(cp = *argp++) || *cp == '-')
 207                         die("missing argument to %s", argp[-2]);
 208                     if ((outputlinelen = atoi(cp)) < 10)
 209                         die("impossible width %d", outputlinelen);
 210                     continue;
 211
 212                 case SUBJECTSW:
 213                     if (!(cp = *argp++) || *cp == '-')
 214                         die("missing argument to %s", argp[-2]);
 215                     subject = cp;
 216                     continue;
 217             }
 218         }
 219         if (*cp == '+' || *cp == '@') {
 220             if (folder)
 221                 die("only one folder at a time!");
 222             folder = pluspath (cp);
 223         } else {
 224             if (msg)
 225                 die("only one message at a time!");
 226             msg = cp;
 227         }
 228     }
 229
 230     cwd = mh_xstrdup(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             die("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             die("unable to read folder %s", folder);
 264
 265         /* check for empty folder */
 266         if (mp->nummsg == 0)
 267             die("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             die("only one message at a time!");
 277
 278         if ((in = open (form = mh_xstrdup(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 = read_switch_multiword ("\nDisposition? ",
 345                                                 isdf ? aqrunl : aqrul)))
 346                 done (1);
 347             switch (i = smatch (*argp, isdf ? aqrunl : aqrul)) {
 348                 case NOSW:
 349                     done (0);
 350                 case NEWSW:
 351                     file = NULL;
 352                     use = NOUSE;
 353                     goto try_it_again;
 354                 case YESW:
 355                     break;
 356                 case USELSW:
 357                     use++;
 358                     goto edit_it;
 359                 case LISTDSW:
 360                     showfile (++argp, drft);
 361                     break;
 362                 case REFILSW:
 363                     if (refile (++argp, drft) == 0)
 364                         i = YESW;
 365                     break;
 366                 default:
 367                     inform("say what?");
 368                     break;
 369             }
 370         }
 371     } else {
 372         if (use)
 373             adios (drft, "unable to open");
 374     }
 375
 376     if ((out = creat (drft, m_gmprot ())) == NOTOK)
 377         adios (drft, "unable to create");
 378     if (cp) {
 379         charstring_t scanl;
 380
 381         i = format_len + 1024;
 382         scanl = charstring_create (i + 2);
 383         dat[0] = 0;
 384         dat[1] = 0;
 385         dat[2] = 0;
 386         dat[3] = outputlinelen;
 387         dat[4] = 0;
 388         fmt_scan(fmt, scanl, i, dat, NULL);
 389         if (write(out, charstring_buffer (scanl),
 390                   charstring_bytes (scanl)) < 0) {
 391             advise (drft, "write");
 392         }
 393         charstring_free(scanl);
 394     } else {
 395         cpydata (in, out, form, drft);
 396         close (in);
 397     }
 398     close (out);
 399
 400 edit_it:
 401     context_save ();    /* save the context file */
 402
 403     if (nwhat)
 404         done (0);
 405     what_now (ed, nedit, use, drft, NULL, 0, NULL, NULL, 0, cwd, 0);
 406     done (1);
 407     return 1;
 408 }