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/print_version.h"
  10 #include "sbr/print_help.h"
  11 #include "sbr/error.h"
  12 #include "h/utils.h"
  13 #include "h/fmt_scan.h"
  14 #include "h/done.h"
  15 #include "sbr/m_maildir.h"
  16 #include <fcntl.h>
  17
  18 #define COMP_SWITCHES \
  19     X("draftfolder +folder", 0, DFOLDSW) \
  20     X("draftmessage msg", 0, DMSGSW) \
  21     X("nodraftfolder", 0, NDFLDSW) \
  22     X("editor editor", 0, EDITRSW) \
  23     X("noedit", 0, NEDITSW) \
  24     X("file file", 0, FILESW) \
  25     X("form formfile", 0, FORMSW) \
  26     X("use", 0, USESW) \
  27     X("nouse", 0, NUSESW) \
  28     X("whatnowproc program", 0, WHATSW) \
  29     X("nowhatnowproc", 0, NWHATSW) \
  30     X("build", 5, BILDSW) \
  31     X("version", 0, VERSIONSW) \
  32     X("help", 0, HELPSW) \
  33     X("to address", 0, TOSW) \
  34     X("cc address", 0, CCSW) \
  35     X("from address", 0, FROMSW) \
  36     X("fcc mailbox", 0, FCCSW) \
  37     X("width columns", 0, WIDTHSW) \
  38     X("subject text", 0, SUBJECTSW) \
  39
  40 #define X(sw, minchars, id) id,
  41 DEFINE_SWITCH_ENUM(COMP);
  42 #undef X
  43
  44 #define X(sw, minchars, id) { sw, minchars, id },
  45 DEFINE_SWITCH_ARRAY(COMP, switches);
  46 #undef X
  47
  48 #define DISPO_SWITCHES \
  49     X("quit", 0, NOSW) \
  50     X("replace", 0, YESW) \
  51     X("use", 0, USELSW) \
  52     X("list", 0, LISTDSW) \
  53     X("refile +folder", 0, REFILSW) \
  54     X("new", 0, NEWSW) \
  55
  56 #define X(sw, minchars, id) id,
  57 DEFINE_SWITCH_ENUM(DISPO);
  58 #undef X
  59
  60 #define X(sw, minchars, id) { sw, minchars, id },
  61 DEFINE_SWITCH_ARRAY(DISPO, aqrunl);
  62 #undef X
  63
  64 static struct swit aqrul[] = {
  65     { "quit", 0, NOSW },
  66     { "replace", 0, YESW },
  67     { "use", 0, USELSW },
  68     { "list", 0, LISTDSW },
  69     { "refile", 0, REFILSW },
  70     { NULL, 0, 0 }
  71 };
  72
  73 int
  74 main (int argc, char **argv)
  75 {
  76     int use = NOUSE;
  77     bool nedit = false;
  78     bool nwhat = false;
  79     bool build = false;
  80     int i, in = NOTOK, isdf = 0, out, dat[5], format_len = 0;
  81     int outputlinelen = OUTPUTLINELEN;
  82     char *cp, *cwd, *maildir, *dfolder = NULL;
  83     char *ed = NULL, *file = NULL, *form = NULL;
  84     char *folder = NULL, *msg = NULL, buf[BUFSIZ];
  85     char *to = NULL, *from = NULL, *cc = NULL, *fcc = NULL, *dp;
  86     char *subject = NULL;
  87     char drft[BUFSIZ], **argp, **arguments;
  88     struct msgs *mp = NULL;
  89     struct format *fmt;
  90     struct stat st;
  91
  92     if (nmh_init(argv[0], true, true)) { return 1; }
  93
  94     arguments = getarguments (invo_name, argc, argv, 1);
  95     argp = arguments;
  96
  97     while ((cp = *argp++)) {
  98         if (*cp == '-') {
  99             switch (smatch (++cp, switches)) {
 100                 case AMBIGSW:
 101                     ambigsw (cp, switches);
 102                     done (1);
 103                 case UNKWNSW:
 104                     die("-%s unknown", cp);
 105
 106                 case HELPSW:
 107                     snprintf (buf, sizeof(buf), "%s [+folder] [msg] [switches]",
 108                         invo_name);
 109                     print_help (buf, switches, 1);
 110                     done (0);
 111                 case VERSIONSW:
 112                     print_version(invo_name);
 113                     done (0);
 114
 115                 case EDITRSW:
 116                     if (!(ed = *argp++) || *ed == '-')
 117                         die("missing argument to %s", argp[-2]);
 118                     nedit = false;
 119                     continue;
 120                 case NEDITSW:
 121                     nedit = true;
 122                     continue;
 123
 124                 case WHATSW:
 125                     if (!(whatnowproc = *argp++) || *whatnowproc == '-')
 126                         die("missing argument to %s", argp[-2]);
 127                     nwhat = false;
 128                     continue;
 129
 130                 case BILDSW:
 131                     build = true;
 132                     /* FALLTHRU */
 133                 case NWHATSW:
 134                     nwhat = true;
 135                     continue;
 136
 137                 case FORMSW:
 138                     if (!(form = *argp++) || *form == '-')
 139                         die("missing argument to %s", argp[-2]);
 140                     continue;
 141
 142                 case USESW:
 143                     use++;
 144                     continue;
 145                 case NUSESW:
 146                     use = NOUSE;
 147                     continue;
 148
 149                 case FILESW:    /* compatibility */
 150                     if (file)
 151                         die("only one file at a time!");
 152                     if (!(file = *argp++) || *file == '-')
 153                         die("missing argument to %s", argp[-2]);
 154                     isdf = NOTOK;
 155                     continue;
 156
 157                 case DFOLDSW:
 158                     if (dfolder)
 159                         die("only one draft folder at a time!");
 160                     if (!(cp = *argp++) || *cp == '-')
 161                         die("missing argument to %s", argp[-2]);
 162                     dfolder = path (*cp == '+' || *cp == '@' ? cp + 1 : cp,
 163                             *cp != '@' ? TFOLDER : TSUBCWF);
 164                     continue;
 165                 case DMSGSW:
 166                     if (file)
 167                         die("only one draft message at a time!");
 168                     if (!(file = *argp++) || *file == '-')
 169                         die("missing argument to %s", argp[-2]);
 170                     continue;
 171                 case NDFLDSW:
 172                     dfolder = NULL;
 173                     isdf = NOTOK;
 174                     continue;
 175
 176                 case TOSW:
 177                     if (!(cp = *argp++) || *cp == '-')
 178                         die("missing argument to %s", argp[-2]);
 179                     to = addlist(to, cp);
 180                     continue;
 181
 182                 case CCSW:
 183                     if (!(cp = *argp++) || *cp == '-')
 184                         die("missing argument to %s", argp[-2]);
 185                     cc = addlist(cc, cp);
 186                     continue;
 187
 188                 case FROMSW:
 189                     if (!(cp = *argp++) || *cp == '-')
 190                         die("missing argument to %s", argp[-2]);
 191                     from = addlist(from, cp);
 192                     continue;
 193
 194                 case FCCSW:
 195                     if (!(cp = *argp++) || *cp == '-')
 196                         die("missing argument to %s", argp[-2]);
 197                     dp = NULL;
 198                     if (*cp == '@')
 199                         cp = dp = path(cp + 1, TSUBCWF);
 200                     fcc = addlist(fcc, cp);
 201                     free(dp);
 202                     continue;
 203
 204                 case WIDTHSW:
 205                     if (!(cp = *argp++) || *cp == '-')
 206                         die("missing argument to %s", argp[-2]);
 207                     if ((outputlinelen = atoi(cp)) < 10)
 208                         die("impossible width %d", outputlinelen);
 209                     continue;
 210
 211                 case SUBJECTSW:
 212                     if (!(cp = *argp++) || *cp == '-')
 213                         die("missing argument to %s", argp[-2]);
 214                     subject = cp;
 215                     continue;
 216             }
 217         }
 218         if (*cp == '+' || *cp == '@') {
 219             if (folder)
 220                 die("only one folder at a time!");
 221             folder = pluspath (cp);
 222         } else {
 223             if (msg)
 224                 die("only one message at a time!");
 225             msg = cp;
 226         }
 227     }
 228
 229     cwd = mh_xstrdup(pwd ());
 230
 231     if (!context_find ("path"))
 232         free (path ("./", TFOLDER));
 233
 234     /*
 235      * Check if we are using a draft folder
 236      * and have specified a message in it.
 237      */
 238     if ((dfolder || context_find ("Draft-Folder")) && !folder && msg && !file) {
 239         file = msg;
 240         msg = NULL;
 241     }
 242     if (form && (folder || msg))
 243             die("can't mix forms and folders/msgs");
 244
 245     cp = NULL;
 246
 247     if (folder || msg) {
 248         /*
 249          * Use a message as the "form" for the new message.
 250          */
 251         if (!msg)
 252             msg = "cur";
 253         if (!folder)
 254             folder = getfolder (1);
 255         maildir = m_maildir (folder);
 256
 257         if (chdir (maildir) == NOTOK)
 258             adios (maildir, "unable to change directory to");
 259
 260         /* read folder and create message structure */
 261         if (!(mp = folder_read (folder, 1)))
 262             die("unable to read folder %s", folder);
 263
 264         /* check for empty folder */
 265         if (mp->nummsg == 0)
 266             die("no messages in %s", folder);
 267
 268         /* parse the message range/sequence/name and set SELECTED */
 269         if (!m_convert (mp, msg))
 270             done (1);
 271         seq_setprev (mp);       /* set the previous-sequence */
 272         seq_save (mp);
 273
 274         if (mp->numsel > 1)
 275             die("only one message at a time!");
 276
 277         if ((in = open (form = mh_xstrdup(m_name (mp->lowsel)), O_RDONLY)) == NOTOK)
 278             adios (form, "unable to open message");
 279     } else {
 280         struct comp *cptr;
 281
 282         if (! form)
 283             form = components;
 284
 285         cp = new_fs(form, NULL, NULL);
 286         format_len = strlen(cp);
 287         fmt_compile(cp, &fmt, 1);
 288
 289         /*
 290          * Set up any components that were fed to us on the command line
 291          */
 292
 293         if (from) {
 294             cptr = fmt_findcomp("from");
 295             if (cptr)
 296                 cptr->c_text = from;
 297         }
 298         if (to) {
 299             cptr = fmt_findcomp("to");
 300             if (cptr)
 301                 cptr->c_text = to;
 302         }
 303         if (cc) {
 304             cptr = fmt_findcomp("cc");
 305             if (cptr)
 306                 cptr->c_text = cc;
 307         }
 308         if (fcc) {
 309             cptr = fmt_findcomp("fcc");
 310             if (cptr)
 311                 cptr->c_text = fcc;
 312         }
 313         if (subject) {
 314             cptr = fmt_findcomp("subject");
 315             if (cptr)
 316                 cptr->c_text = subject;
 317         }
 318     }
 319
 320 try_it_again:
 321     strncpy (drft, build ? m_maildir ("draft")
 322                         : m_draft (dfolder, file, use, &isdf), sizeof(drft));
 323
 324     /*
 325      * Check if we have an existing draft
 326      */
 327     if (!build && (out = open (drft, O_RDONLY)) != NOTOK) {
 328         i = fdcompare (in, out);
 329         close (out);
 330
 331         /*
 332          * If we have given -use flag, or if the
 333          * draft is just the same as the components
 334          * file, then no need to ask any questions.
 335          */
 336         if (use || i)
 337             goto edit_it;
 338
 339         if (stat (drft, &st) == NOTOK)
 340             adios (drft, "unable to stat");
 341         printf ("Draft \"%s\" exists (%ld bytes).", drft, (long) st.st_size);
 342         for (i = LISTDSW; i != YESW;) {
 343             if (!(argp = read_switch_multiword ("\nDisposition? ",
 344                                                 isdf ? aqrunl : aqrul)))
 345                 done (1);
 346             switch (i = smatch (*argp, isdf ? aqrunl : aqrul)) {
 347                 case NOSW:
 348                     done (0);
 349                 case NEWSW:
 350                     file = NULL;
 351                     use = NOUSE;
 352                     goto try_it_again;
 353                 case YESW:
 354                     break;
 355                 case USELSW:
 356                     use++;
 357                     goto edit_it;
 358                 case LISTDSW:
 359                     showfile (++argp, drft);
 360                     break;
 361                 case REFILSW:
 362                     if (refile (++argp, drft) == 0)
 363                         i = YESW;
 364                     break;
 365                 default:
 366                     inform("say what?");
 367                     break;
 368             }
 369         }
 370     } else {
 371         if (use)
 372             adios (drft, "unable to open");
 373     }
 374
 375     if ((out = creat (drft, m_gmprot ())) == NOTOK)
 376         adios (drft, "unable to create");
 377     if (cp) {
 378         charstring_t scanl;
 379
 380         i = format_len + 1024;
 381         scanl = charstring_create (i + 2);
 382         dat[0] = 0;
 383         dat[1] = 0;
 384         dat[2] = 0;
 385         dat[3] = outputlinelen;
 386         dat[4] = 0;
 387         fmt_scan(fmt, scanl, i, dat, NULL);
 388         if (write(out, charstring_buffer (scanl),
 389                   charstring_bytes (scanl)) < 0) {
 390             advise (drft, "write");
 391         }
 392         charstring_free(scanl);
 393     } else {
 394         cpydata (in, out, form, drft);
 395         close (in);
 396     }
 397     close (out);
 398
 399 edit_it:
 400     context_save ();    /* save the context file */
 401
 402     if (nwhat)
 403         done (0);
 404     what_now (ed, nedit, use, drft, NULL, 0, NULL, NULL, 0, cwd, 0);
 405     done (1);
 406     return 1;
 407 }