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/seq_setprev.h"
  10 #include "sbr/seq_save.h"
  11 #include "sbr/showfile.h"
  12 #include "sbr/smatch.h"
  13 #include "sbr/refile.h"
  14 #include "sbr/cpydata.h"
  15 #include "sbr/m_draft.h"
  16 #include "sbr/m_convert.h"
  17 #include "sbr/getfolder.h"
  18 #include "sbr/fdcompare.h"
  19 #include "sbr/folder_read.h"
  20 #include "sbr/context_save.h"
  21 #include "sbr/context_find.h"
  22 #include "sbr/ambigsw.h"
  23 #include "sbr/path.h"
  24 #include "sbr/print_version.h"
  25 #include "sbr/print_help.h"
  26 #include "sbr/error.h"
  27 #include "h/utils.h"
  28 #include "h/fmt_scan.h"
  29 #include "h/done.h"
  30 #include "sbr/m_maildir.h"
  31 #include <fcntl.h>
  32
  33 #define COMP_SWITCHES \
  34     X("draftfolder +folder", 0, DFOLDSW) \
  35     X("draftmessage msg", 0, DMSGSW) \
  36     X("nodraftfolder", 0, NDFLDSW) \
  37     X("editor editor", 0, EDITRSW) \
  38     X("noedit", 0, NEDITSW) \
  39     X("file file", 0, FILESW) \
  40     X("form formfile", 0, FORMSW) \
  41     X("use", 0, USESW) \
  42     X("nouse", 0, NUSESW) \
  43     X("whatnowproc program", 0, WHATSW) \
  44     X("nowhatnowproc", 0, NWHATSW) \
  45     X("build", 5, BILDSW) \
  46     X("version", 0, VERSIONSW) \
  47     X("help", 0, HELPSW) \
  48     X("to address", 0, TOSW) \
  49     X("cc address", 0, CCSW) \
  50     X("from address", 0, FROMSW) \
  51     X("fcc mailbox", 0, FCCSW) \
  52     X("width columns", 0, WIDTHSW) \
  53     X("subject text", 0, SUBJECTSW) \
  54
  55 #define X(sw, minchars, id) id,
  56 DEFINE_SWITCH_ENUM(COMP);
  57 #undef X
  58
  59 #define X(sw, minchars, id) { sw, minchars, id },
  60 DEFINE_SWITCH_ARRAY(COMP, switches);
  61 #undef X
  62
  63 #define DISPO_SWITCHES \
  64     X("quit", 0, NOSW) \
  65     X("replace", 0, YESW) \
  66     X("use", 0, USELSW) \
  67     X("list", 0, LISTDSW) \
  68     X("refile +folder", 0, REFILSW) \
  69     X("new", 0, NEWSW) \
  70
  71 #define X(sw, minchars, id) id,
  72 DEFINE_SWITCH_ENUM(DISPO);
  73 #undef X
  74
  75 #define X(sw, minchars, id) { sw, minchars, id },
  76 DEFINE_SWITCH_ARRAY(DISPO, aqrunl);
  77 #undef X
  78
  79 static struct swit aqrul[] = {
  80     { "quit", 0, NOSW },
  81     { "replace", 0, YESW },
  82     { "use", 0, USELSW },
  83     { "list", 0, LISTDSW },
  84     { "refile", 0, REFILSW },
  85     { NULL, 0, 0 }
  86 };
  87
  88 int
  89 main (int argc, char **argv)
  90 {
  91     int use = NOUSE;
  92     bool nedit = false;
  93     bool nwhat = false;
  94     bool build = false;
  95     int i, in = NOTOK, isdf = 0, out, dat[5], format_len = 0;
  96     int outputlinelen = OUTPUTLINELEN;
  97     char *cp, *cwd, *maildir, *dfolder = NULL;
  98     char *ed = NULL, *file = NULL, *form = NULL;
  99     char *folder = NULL, *msg = NULL, buf[BUFSIZ];
 100     char *to = NULL, *from = NULL, *cc = NULL, *fcc = NULL, *dp;
 101     char *subject = NULL;
 102     char drft[BUFSIZ], **argp, **arguments;
 103     struct msgs *mp = NULL;
 104     struct format *fmt;
 105     struct stat st;
 106
 107     if (nmh_init(argv[0], true, true)) { return 1; }
 108
 109     arguments = getarguments (invo_name, argc, argv, 1);
 110     argp = arguments;
 111
 112     while ((cp = *argp++)) {
 113         if (*cp == '-') {
 114             switch (smatch (++cp, switches)) {
 115                 case AMBIGSW:
 116                     ambigsw (cp, switches);
 117                     done (1);
 118                 case UNKWNSW:
 119                     die("-%s unknown", cp);
 120
 121                 case HELPSW:
 122                     snprintf (buf, sizeof(buf), "%s [+folder] [msg] [switches]",
 123                         invo_name);
 124                     print_help (buf, switches, 1);
 125                     done (0);
 126                 case VERSIONSW:
 127                     print_version(invo_name);
 128                     done (0);
 129
 130                 case EDITRSW:
 131                     if (!(ed = *argp++) || *ed == '-')
 132                         die("missing argument to %s", argp[-2]);
 133                     nedit = false;
 134                     continue;
 135                 case NEDITSW:
 136                     nedit = true;
 137                     continue;
 138
 139                 case WHATSW:
 140                     if (!(whatnowproc = *argp++) || *whatnowproc == '-')
 141                         die("missing argument to %s", argp[-2]);
 142                     nwhat = false;
 143                     continue;
 144
 145                 case BILDSW:
 146                     build = true;
 147                     /* FALLTHRU */
 148                 case NWHATSW:
 149                     nwhat = true;
 150                     continue;
 151
 152                 case FORMSW:
 153                     if (!(form = *argp++) || *form == '-')
 154                         die("missing argument to %s", argp[-2]);
 155                     continue;
 156
 157                 case USESW:
 158                     use++;
 159                     continue;
 160                 case NUSESW:
 161                     use = NOUSE;
 162                     continue;
 163
 164                 case FILESW:    /* compatibility */
 165                     if (file)
 166                         die("only one file at a time!");
 167                     if (!(file = *argp++) || *file == '-')
 168                         die("missing argument to %s", argp[-2]);
 169                     isdf = NOTOK;
 170                     continue;
 171
 172                 case DFOLDSW:
 173                     if (dfolder)
 174                         die("only one draft folder at a time!");
 175                     if (!(cp = *argp++) || *cp == '-')
 176                         die("missing argument to %s", argp[-2]);
 177                     dfolder = path (*cp == '+' || *cp == '@' ? cp + 1 : cp,
 178                             *cp != '@' ? TFOLDER : TSUBCWF);
 179                     continue;
 180                 case DMSGSW:
 181                     if (file)
 182                         die("only one draft message at a time!");
 183                     if (!(file = *argp++) || *file == '-')
 184                         die("missing argument to %s", argp[-2]);
 185                     continue;
 186                 case NDFLDSW:
 187                     dfolder = NULL;
 188                     isdf = NOTOK;
 189                     continue;
 190
 191                 case TOSW:
 192                     if (!(cp = *argp++) || *cp == '-')
 193                         die("missing argument to %s", argp[-2]);
 194                     to = addlist(to, cp);
 195                     continue;
 196
 197                 case CCSW:
 198                     if (!(cp = *argp++) || *cp == '-')
 199                         die("missing argument to %s", argp[-2]);
 200                     cc = addlist(cc, cp);
 201                     continue;
 202
 203                 case FROMSW:
 204                     if (!(cp = *argp++) || *cp == '-')
 205                         die("missing argument to %s", argp[-2]);
 206                     from = addlist(from, cp);
 207                     continue;
 208
 209                 case FCCSW:
 210                     if (!(cp = *argp++) || *cp == '-')
 211                         die("missing argument to %s", argp[-2]);
 212                     dp = NULL;
 213                     if (*cp == '@')
 214                         cp = dp = path(cp + 1, TSUBCWF);
 215                     fcc = addlist(fcc, cp);
 216                     free(dp);
 217                     continue;
 218
 219                 case WIDTHSW:
 220                     if (!(cp = *argp++) || *cp == '-')
 221                         die("missing argument to %s", argp[-2]);
 222                     if ((outputlinelen = atoi(cp)) < 10)
 223                         die("impossible width %d", outputlinelen);
 224                     continue;
 225
 226                 case SUBJECTSW:
 227                     if (!(cp = *argp++) || *cp == '-')
 228                         die("missing argument to %s", argp[-2]);
 229                     subject = cp;
 230                     continue;
 231             }
 232         }
 233         if (*cp == '+' || *cp == '@') {
 234             if (folder)
 235                 die("only one folder at a time!");
 236             folder = pluspath (cp);
 237         } else {
 238             if (msg)
 239                 die("only one message at a time!");
 240             msg = cp;
 241         }
 242     }
 243
 244     cwd = mh_xstrdup(pwd ());
 245
 246     if (!context_find ("path"))
 247         free (path ("./", TFOLDER));
 248
 249     /*
 250      * Check if we are using a draft folder
 251      * and have specified a message in it.
 252      */
 253     if ((dfolder || context_find ("Draft-Folder")) && !folder && msg && !file) {
 254         file = msg;
 255         msg = NULL;
 256     }
 257     if (form && (folder || msg))
 258             die("can't mix forms and folders/msgs");
 259
 260     cp = NULL;
 261
 262     if (folder || msg) {
 263         /*
 264          * Use a message as the "form" for the new message.
 265          */
 266         if (!msg)
 267             msg = "cur";
 268         if (!folder)
 269             folder = getfolder (1);
 270         maildir = m_maildir (folder);
 271
 272         if (chdir (maildir) == NOTOK)
 273             adios (maildir, "unable to change directory to");
 274
 275         /* read folder and create message structure */
 276         if (!(mp = folder_read (folder, 1)))
 277             die("unable to read folder %s", folder);
 278
 279         /* check for empty folder */
 280         if (mp->nummsg == 0)
 281             die("no messages in %s", folder);
 282
 283         /* parse the message range/sequence/name and set SELECTED */
 284         if (!m_convert (mp, msg))
 285             done (1);
 286         seq_setprev (mp);       /* set the previous-sequence */
 287         seq_save (mp);
 288
 289         if (mp->numsel > 1)
 290             die("only one message at a time!");
 291
 292         if ((in = open (form = mh_xstrdup(m_name (mp->lowsel)), O_RDONLY)) == NOTOK)
 293             adios (form, "unable to open message");
 294     } else {
 295         struct comp *cptr;
 296
 297         if (! form)
 298             form = components;
 299
 300         cp = new_fs(form, NULL, NULL);
 301         format_len = strlen(cp);
 302         fmt_compile(cp, &fmt, 1);
 303
 304         /*
 305          * Set up any components that were fed to us on the command line
 306          */
 307
 308         if (from) {
 309             cptr = fmt_findcomp("from");
 310             if (cptr)
 311                 cptr->c_text = from;
 312         }
 313         if (to) {
 314             cptr = fmt_findcomp("to");
 315             if (cptr)
 316                 cptr->c_text = to;
 317         }
 318         if (cc) {
 319             cptr = fmt_findcomp("cc");
 320             if (cptr)
 321                 cptr->c_text = cc;
 322         }
 323         if (fcc) {
 324             cptr = fmt_findcomp("fcc");
 325             if (cptr)
 326                 cptr->c_text = fcc;
 327         }
 328         if (subject) {
 329             cptr = fmt_findcomp("subject");
 330             if (cptr)
 331                 cptr->c_text = subject;
 332         }
 333     }
 334
 335 try_it_again:
 336     strncpy (drft, build ? m_maildir ("draft")
 337                         : m_draft (dfolder, file, use, &isdf), sizeof(drft));
 338
 339     /*
 340      * Check if we have an existing draft
 341      */
 342     if (!build && (out = open (drft, O_RDONLY)) != NOTOK) {
 343         i = fdcompare (in, out);
 344         close (out);
 345
 346         /*
 347          * If we have given -use flag, or if the
 348          * draft is just the same as the components
 349          * file, then no need to ask any questions.
 350          */
 351         if (use || i)
 352             goto edit_it;
 353
 354         if (stat (drft, &st) == NOTOK)
 355             adios (drft, "unable to stat");
 356         printf ("Draft \"%s\" exists (%ld bytes).", drft, (long) st.st_size);
 357         for (i = LISTDSW; i != YESW;) {
 358             if (!(argp = read_switch_multiword ("\nDisposition? ",
 359                                                 isdf ? aqrunl : aqrul)))
 360                 done (1);
 361             switch (i = smatch (*argp, isdf ? aqrunl : aqrul)) {
 362                 case NOSW:
 363                     done (0);
 364                 case NEWSW:
 365                     file = NULL;
 366                     use = NOUSE;
 367                     goto try_it_again;
 368                 case YESW:
 369                     break;
 370                 case USELSW:
 371                     use++;
 372                     goto edit_it;
 373                 case LISTDSW:
 374                     showfile (++argp, drft);
 375                     break;
 376                 case REFILSW:
 377                     if (refile (++argp, drft) == 0)
 378                         i = YESW;
 379                     break;
 380                 default:
 381                     inform("say what?");
 382                     break;
 383             }
 384         }
 385     } else {
 386         if (use)
 387             adios (drft, "unable to open");
 388     }
 389
 390     if ((out = creat (drft, m_gmprot ())) == NOTOK)
 391         adios (drft, "unable to create");
 392     if (cp) {
 393         charstring_t scanl;
 394
 395         i = format_len + 1024;
 396         scanl = charstring_create (i + 2);
 397         dat[0] = 0;
 398         dat[1] = 0;
 399         dat[2] = 0;
 400         dat[3] = outputlinelen;
 401         dat[4] = 0;
 402         fmt_scan(fmt, scanl, i, dat, NULL);
 403         if (write(out, charstring_buffer (scanl),
 404                   charstring_bytes (scanl)) < 0) {
 405             advise (drft, "write");
 406         }
 407         charstring_free(scanl);
 408     } else {
 409         cpydata (in, out, form, drft);
 410         close (in);
 411     }
 412     close (out);
 413
 414 edit_it:
 415     context_save ();    /* save the context file */
 416
 417     if (nwhat)
 418         done (0);
 419     what_now (ed, nedit, use, drft, NULL, 0, NULL, NULL, 0, cwd, 0);
 420     done (1);
 421     return 1;
 422 }