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 <h/utils.h>
  10 #include <h/fmt_scan.h>
  11 #include "../sbr/m_maildir.h"
  12 #include <fcntl.h>
  13
  14 #define COMP_SWITCHES \
  15     X("draftfolder +folder", 0, DFOLDSW) \
  16     X("draftmessage msg", 0, DMSGSW) \
  17     X("nodraftfolder", 0, NDFLDSW) \
  18     X("editor editor", 0, EDITRSW) \
  19     X("noedit", 0, NEDITSW) \
  20     X("file file", 0, FILESW) \
  21     X("form formfile", 0, FORMSW) \
  22     X("use", 0, USESW) \
  23     X("nouse", 0, NUSESW) \
  24     X("whatnowproc program", 0, WHATSW) \
  25     X("nowhatnowproc", 0, NWHATSW) \
  26     X("build", 5, BILDSW) \
  27     X("version", 0, VERSIONSW) \
  28     X("help", 0, HELPSW) \
  29     X("to address", 0, TOSW) \
  30     X("cc address", 0, CCSW) \
  31     X("from address", 0, FROMSW) \
  32     X("fcc mailbox", 0, FCCSW) \
  33     X("width columns", 0, WIDTHSW) \
  34     X("subject text", 0, SUBJECTSW) \
  35
  36 #define X(sw, minchars, id) id,
  37 DEFINE_SWITCH_ENUM(COMP);
  38 #undef X
  39
  40 #define X(sw, minchars, id) { sw, minchars, id },
  41 DEFINE_SWITCH_ARRAY(COMP, switches);
  42 #undef X
  43
  44 #define DISPO_SWITCHES \
  45     X("quit", 0, NOSW) \
  46     X("replace", 0, YESW) \
  47     X("use", 0, USELSW) \
  48     X("list", 0, LISTDSW) \
  49     X("refile +folder", 0, REFILSW) \
  50     X("new", 0, NEWSW) \
  51
  52 #define X(sw, minchars, id) id,
  53 DEFINE_SWITCH_ENUM(DISPO);
  54 #undef X
  55
  56 #define X(sw, minchars, id) { sw, minchars, id },
  57 DEFINE_SWITCH_ARRAY(DISPO, aqrunl);
  58 #undef X
  59
  60 static struct swit aqrul[] = {
  61     { "quit", 0, NOSW },
  62     { "replace", 0, YESW },
  63     { "use", 0, USELSW },
  64     { "list", 0, LISTDSW },
  65     { "refile", 0, REFILSW },
  66     { NULL, 0, 0 }
  67 };
  68
  69 int
  70 main (int argc, char **argv)
  71 {
  72     int use = NOUSE, nedit = 0, nwhat = 0, build = 0;
  73     int i, in = NOTOK, isdf = 0, out, dat[5], format_len = 0;
  74     int outputlinelen = OUTPUTLINELEN;
  75     char *cp, *cwd, *maildir, *dfolder = NULL;
  76     char *ed = NULL, *file = NULL, *form = NULL;
  77     char *folder = NULL, *msg = NULL, buf[BUFSIZ];
  78     char *to = NULL, *from = NULL, *cc = NULL, *fcc = NULL, *dp;
  79     char *subject = NULL;
  80     char drft[BUFSIZ], **argp, **arguments;
  81     struct msgs *mp = NULL;
  82     struct format *fmt;
  83     struct stat st;
  84
  85     if (nmh_init(argv[0], 1)) { return 1; }
  86
  87     arguments = getarguments (invo_name, argc, argv, 1);
  88     argp = arguments;
  89
  90     while ((cp = *argp++)) {
  91         if (*cp == '-') {
  92             switch (smatch (++cp, switches)) {
  93                 case AMBIGSW:
  94                     ambigsw (cp, switches);
  95                     done (1);
  96                 case UNKWNSW:
  97                     adios (NULL, "-%s unknown", cp);
  98
  99                 case HELPSW:
 100                     snprintf (buf, sizeof(buf), "%s [+folder] [msg] [switches]",
 101                         invo_name);
 102                     print_help (buf, switches, 1);
 103                     done (0);
 104                 case VERSIONSW:
 105                     print_version(invo_name);
 106                     done (0);
 107
 108                 case EDITRSW:
 109                     if (!(ed = *argp++) || *ed == '-')
 110                         adios (NULL, "missing argument to %s", argp[-2]);
 111                     nedit = 0;
 112                     continue;
 113                 case NEDITSW:
 114                     nedit++;
 115                     continue;
 116
 117                 case WHATSW:
 118                     if (!(whatnowproc = *argp++) || *whatnowproc == '-')
 119                         adios (NULL, "missing argument to %s", argp[-2]);
 120                     nwhat = 0;
 121                     continue;
 122
 123                 case BILDSW:
 124                     build++;
 125                     /* FALLTHRU */
 126                 case NWHATSW:
 127                     nwhat++;
 128                     continue;
 129
 130                 case FORMSW:
 131                     if (!(form = *argp++) || *form == '-')
 132                         adios (NULL, "missing argument to %s", argp[-2]);
 133                     continue;
 134
 135                 case USESW:
 136                     use++;
 137                     continue;
 138                 case NUSESW:
 139                     use = NOUSE;
 140                     continue;
 141
 142                 case FILESW:    /* compatibility */
 143                     if (file)
 144                         adios (NULL, "only one file at a time!");
 145                     if (!(file = *argp++) || *file == '-')
 146                         adios (NULL, "missing argument to %s", argp[-2]);
 147                     isdf = NOTOK;
 148                     continue;
 149
 150                 case DFOLDSW:
 151                     if (dfolder)
 152                         adios (NULL, "only one draft folder at a time!");
 153                     if (!(cp = *argp++) || *cp == '-')
 154                         adios (NULL, "missing argument to %s", argp[-2]);
 155                     dfolder = path (*cp == '+' || *cp == '@' ? cp + 1 : cp,
 156                             *cp != '@' ? TFOLDER : TSUBCWF);
 157                     continue;
 158                 case DMSGSW:
 159                     if (file)
 160                         adios (NULL, "only one draft message at a time!");
 161                     if (!(file = *argp++) || *file == '-')
 162                         adios (NULL, "missing argument to %s", argp[-2]);
 163                     continue;
 164                 case NDFLDSW:
 165                     dfolder = NULL;
 166                     isdf = NOTOK;
 167                     continue;
 168
 169                 case TOSW:
 170                     if (!(cp = *argp++) || *cp == '-')
 171                         adios (NULL, "missing argument to %s", argp[-2]);
 172                     to = addlist(to, cp);
 173                     continue;
 174
 175                 case CCSW:
 176                     if (!(cp = *argp++) || *cp == '-')
 177                         adios (NULL, "missing argument to %s", argp[-2]);
 178                     cc = addlist(cc, cp);
 179                     continue;
 180
 181                 case FROMSW:
 182                     if (!(cp = *argp++) || *cp == '-')
 183                         adios (NULL, "missing argument to %s", argp[-2]);
 184                     from = addlist(from, cp);
 185                     continue;
 186
 187                 case FCCSW:
 188                     if (!(cp = *argp++) || *cp == '-')
 189                         adios (NULL, "missing argument to %s", argp[-2]);
 190                     dp = NULL;
 191                     if (*cp == '@')
 192                         cp = dp = path(cp + 1, TSUBCWF);
 193                     fcc = addlist(fcc, cp);
 194                     mh_xfree(dp);
 195                     continue;
 196
 197                 case WIDTHSW:
 198                     if (!(cp = *argp++) || *cp == '-')
 199                         adios (NULL, "missing argument to %s", argp[-2]);
 200                     if ((outputlinelen = atoi(cp)) < 10)
 201                         adios (NULL, "impossible width %d", outputlinelen);
 202                     continue;
 203
 204                 case SUBJECTSW:
 205                     if (!(cp = *argp++) || *cp == '-')
 206                         adios (NULL, "missing argument to %s", argp[-2]);
 207                     subject = cp;
 208                     continue;
 209             }
 210         }
 211         if (*cp == '+' || *cp == '@') {
 212             if (folder)
 213                 adios (NULL, "only one folder at a time!");
 214             else
 215                 folder = pluspath (cp);
 216         } else {
 217             if (msg)
 218                 adios (NULL, "only one message at a time!");
 219             else
 220                 msg = cp;
 221         }
 222     }
 223
 224     cwd = mh_xstrdup(pwd ());
 225
 226     if (!context_find ("path"))
 227         free (path ("./", TFOLDER));
 228
 229     /*
 230      * Check if we are using a draft folder
 231      * and have specified a message in it.
 232      */
 233     if ((dfolder || context_find ("Draft-Folder")) && !folder && msg && !file) {
 234         file = msg;
 235         msg = NULL;
 236     }
 237     if (form && (folder || msg))
 238             adios (NULL, "can't mix forms and folders/msgs");
 239
 240     cp = NULL;
 241
 242     if (folder || msg) {
 243         /*
 244          * Use a message as the "form" for the new message.
 245          */
 246         if (!msg)
 247             msg = "cur";
 248         if (!folder)
 249             folder = getfolder (1);
 250         maildir = m_maildir (folder);
 251
 252         if (chdir (maildir) == NOTOK)
 253             adios (maildir, "unable to change directory to");
 254
 255         /* read folder and create message structure */
 256         if (!(mp = folder_read (folder, 1)))
 257             adios (NULL, "unable to read folder %s", folder);
 258
 259         /* check for empty folder */
 260         if (mp->nummsg == 0)
 261             adios (NULL, "no messages in %s", folder);
 262
 263         /* parse the message range/sequence/name and set SELECTED */
 264         if (!m_convert (mp, msg))
 265             done (1);
 266         seq_setprev (mp);       /* set the previous-sequence */
 267         seq_save (mp);
 268
 269         if (mp->numsel > 1)
 270             adios (NULL, "only one message at a time!");
 271
 272         if ((in = open (form = mh_xstrdup(m_name (mp->lowsel)), O_RDONLY)) == NOTOK)
 273             adios (form, "unable to open message");
 274     } else {
 275         struct comp *cptr;
 276
 277         if (! form)
 278             form = components;
 279
 280         cp = new_fs(form, NULL, NULL);
 281         format_len = strlen(cp);
 282         fmt_compile(cp, &fmt, 1);
 283
 284         /*
 285          * Set up any components that were fed to us on the command line
 286          */
 287
 288         if (from) {
 289             cptr = fmt_findcomp("from");
 290             if (cptr)
 291                 cptr->c_text = from;
 292         }
 293         if (to) {
 294             cptr = fmt_findcomp("to");
 295             if (cptr)
 296                 cptr->c_text = to;
 297         }
 298         if (cc) {
 299             cptr = fmt_findcomp("cc");
 300             if (cptr)
 301                 cptr->c_text = cc;
 302         }
 303         if (fcc) {
 304             cptr = fmt_findcomp("fcc");
 305             if (cptr)
 306                 cptr->c_text = fcc;
 307         }
 308         if (subject) {
 309             cptr = fmt_findcomp("subject");
 310             if (cptr)
 311                 cptr->c_text = subject;
 312         }
 313     }
 314
 315 try_it_again:
 316     strncpy (drft, build ? m_maildir ("draft")
 317                         : m_draft (dfolder, file, use, &isdf), sizeof(drft));
 318
 319     /*
 320      * Check if we have an existing draft
 321      */
 322     if (!build && (out = open (drft, O_RDONLY)) != NOTOK) {
 323         i = fdcompare (in, out);
 324         close (out);
 325
 326         /*
 327          * If we have given -use flag, or if the
 328          * draft is just the same as the components
 329          * file, then no need to ask any questions.
 330          */
 331         if (use || i)
 332             goto edit_it;
 333
 334         if (stat (drft, &st) == NOTOK)
 335             adios (drft, "unable to stat");
 336         printf ("Draft \"%s\" exists (%ld bytes).", drft, (long) st.st_size);
 337         for (i = LISTDSW; i != YESW;) {
 338             if (!(argp = read_switch_multiword ("\nDisposition? ",
 339                                                 isdf ? aqrunl : aqrul)))
 340                 done (1);
 341             switch (i = smatch (*argp, isdf ? aqrunl : aqrul)) {
 342                 case NOSW:
 343                     done (0);
 344                 case NEWSW:
 345                     file = NULL;
 346                     use = NOUSE;
 347                     goto try_it_again;
 348                 case YESW:
 349                     break;
 350                 case USELSW:
 351                     use++;
 352                     goto edit_it;
 353                 case LISTDSW:
 354                     showfile (++argp, drft);
 355                     break;
 356                 case REFILSW:
 357                     if (refile (++argp, drft) == 0)
 358                         i = YESW;
 359                     break;
 360                 default:
 361                     inform("say what?");
 362                     break;
 363             }
 364         }
 365     } else {
 366         if (use)
 367             adios (drft, "unable to open");
 368     }
 369
 370     if ((out = creat (drft, m_gmprot ())) == NOTOK)
 371         adios (drft, "unable to create");
 372     if (cp) {
 373         charstring_t scanl;
 374
 375         i = format_len + 1024;
 376         scanl = charstring_create (i + 2);
 377         dat[0] = 0;
 378         dat[1] = 0;
 379         dat[2] = 0;
 380         dat[3] = outputlinelen;
 381         dat[4] = 0;
 382         fmt_scan(fmt, scanl, i, dat, NULL);
 383         if (write(out, charstring_buffer (scanl),
 384                   charstring_bytes (scanl)) < 0) {
 385             advise (drft, "write");
 386         }
 387         charstring_free(scanl);
 388     } else {
 389         cpydata (in, out, form, drft);
 390         close (in);
 391     }
 392     close (out);
 393
 394 edit_it:
 395     context_save ();    /* save the context file */
 396
 397     if (nwhat)
 398         done (0);
 399     what_now (ed, nedit, use, drft, NULL, 0, NULL, NULL, 0, cwd, 0);
 400     done (1);
 401     return 1;
 402 }