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/fmt_new.h"
  10 #include "whatnowproc.h"
  11 #include "sbr/m_name.h"
  12 #include "sbr/m_gmprot.h"
  13 #include "sbr/getarguments.h"
  14 #include "sbr/read_switch_multiword.h"
  15 #include "sbr/seq_setprev.h"
  16 #include "sbr/seq_save.h"
  17 #include "sbr/showfile.h"
  18 #include "sbr/smatch.h"
  19 #include "sbr/refile.h"
  20 #include "sbr/cpydata.h"
  21 #include "sbr/m_draft.h"
  22 #include "sbr/m_convert.h"
  23 #include "sbr/getfolder.h"
  24 #include "sbr/fdcompare.h"
  25 #include "sbr/folder_read.h"
  26 #include "sbr/context_save.h"
  27 #include "sbr/context_find.h"
  28 #include "sbr/ambigsw.h"
  29 #include "sbr/path.h"
  30 #include "sbr/print_version.h"
  31 #include "sbr/print_help.h"
  32 #include "sbr/error.h"
  33 #include "h/utils.h"
  34 #include "h/fmt_scan.h"
  35 #include "h/done.h"
  36 #include "sbr/m_maildir.h"
  37 #include <fcntl.h>
  38
  39 #define COMP_SWITCHES \
  40     X("draftfolder +folder", 0, DFOLDSW) \
  41     X("draftmessage msg", 0, DMSGSW) \
  42     X("nodraftfolder", 0, NDFLDSW) \
  43     X("editor editor", 0, EDITRSW) \
  44     X("noedit", 0, NEDITSW) \
  45     X("file file", 0, FILESW) \
  46     X("form formfile", 0, FORMSW) \
  47     X("use", 0, USESW) \
  48     X("nouse", 0, NUSESW) \
  49     X("whatnowproc program", 0, WHATSW) \
  50     X("nowhatnowproc", 0, NWHATSW) \
  51     X("build", 5, BILDSW) \
  52     X("version", 0, VERSIONSW) \
  53     X("help", 0, HELPSW) \
  54     X("to address", 0, TOSW) \
  55     X("cc address", 0, CCSW) \
  56     X("from address", 0, FROMSW) \
  57     X("fcc mailbox", 0, FCCSW) \
  58     X("width columns", 0, WIDTHSW) \
  59     X("subject text", 0, SUBJECTSW) \
  60
  61 #define X(sw, minchars, id) id,
  62 DEFINE_SWITCH_ENUM(COMP);
  63 #undef X
  64
  65 #define X(sw, minchars, id) { sw, minchars, id },
  66 DEFINE_SWITCH_ARRAY(COMP, switches);
  67 #undef X
  68
  69 #define DISPO_SWITCHES \
  70     X("quit", 0, NOSW) \
  71     X("replace", 0, YESW) \
  72     X("use", 0, USELSW) \
  73     X("list", 0, LISTDSW) \
  74     X("refile +folder", 0, REFILSW) \
  75     X("new", 0, NEWSW) \
  76
  77 #define X(sw, minchars, id) id,
  78 DEFINE_SWITCH_ENUM(DISPO);
  79 #undef X
  80
  81 #define X(sw, minchars, id) { sw, minchars, id },
  82 DEFINE_SWITCH_ARRAY(DISPO, aqrunl);
  83 #undef X
  84
  85 static struct swit aqrul[] = {
  86     { "quit", 0, NOSW },
  87     { "replace", 0, YESW },
  88     { "use", 0, USELSW },
  89     { "list", 0, LISTDSW },
  90     { "refile", 0, REFILSW },
  91     { NULL, 0, 0 }
  92 };
  93
  94 int
  95 main (int argc, char **argv)
  96 {
  97     int use = NOUSE;
  98     bool nedit = false;
  99     bool nwhat = false;
 100     bool build = false;
 101     int i, in = NOTOK, isdf = 0, out, dat[5], format_len = 0;
 102     int outputlinelen = OUTPUTLINELEN;
 103     char *cp, *cwd, *maildir, *dfolder = NULL;
 104     char *ed = NULL, *file = NULL, *form = NULL;
 105     char *folder = NULL, *msg = NULL, buf[BUFSIZ];
 106     char *to = NULL, *from = NULL, *cc = NULL, *fcc = NULL, *dp;
 107     char *subject = NULL;
 108     char drft[BUFSIZ], **argp, **arguments;
 109     struct msgs *mp = NULL;
 110     struct format *fmt;
 111     struct stat st;
 112
 113     if (nmh_init(argv[0], true, true)) { return 1; }
 114
 115     arguments = getarguments (invo_name, argc, argv, 1);
 116     argp = arguments;
 117
 118     while ((cp = *argp++)) {
 119         if (*cp == '-') {
 120             switch (smatch (++cp, switches)) {
 121                 case AMBIGSW:
 122                     ambigsw (cp, switches);
 123                     done (1);
 124                 case UNKWNSW:
 125                     die("-%s unknown", cp);
 126
 127                 case HELPSW:
 128                     snprintf (buf, sizeof(buf), "%s [+folder] [msg] [switches]",
 129                         invo_name);
 130                     print_help (buf, switches, 1);
 131                     done (0);
 132                 case VERSIONSW:
 133                     print_version(invo_name);
 134                     done (0);
 135
 136                 case EDITRSW:
 137                     if (!(ed = *argp++) || *ed == '-')
 138                         die("missing argument to %s", argp[-2]);
 139                     nedit = false;
 140                     continue;
 141                 case NEDITSW:
 142                     nedit = true;
 143                     continue;
 144
 145                 case WHATSW:
 146                     if (!(whatnowproc = *argp++) || *whatnowproc == '-')
 147                         die("missing argument to %s", argp[-2]);
 148                     nwhat = false;
 149                     continue;
 150
 151                 case BILDSW:
 152                     build = true;
 153                     /* FALLTHRU */
 154                 case NWHATSW:
 155                     nwhat = true;
 156                     continue;
 157
 158                 case FORMSW:
 159                     if (!(form = *argp++) || *form == '-')
 160                         die("missing argument to %s", argp[-2]);
 161                     continue;
 162
 163                 case USESW:
 164                     use++;
 165                     continue;
 166                 case NUSESW:
 167                     use = NOUSE;
 168                     continue;
 169
 170                 case FILESW:    /* compatibility */
 171                     if (file)
 172                         die("only one file at a time!");
 173                     if (!(file = *argp++) || *file == '-')
 174                         die("missing argument to %s", argp[-2]);
 175                     isdf = NOTOK;
 176                     continue;
 177
 178                 case DFOLDSW:
 179                     if (dfolder)
 180                         die("only one draft folder at a time!");
 181                     if (!(cp = *argp++) || *cp == '-')
 182                         die("missing argument to %s", argp[-2]);
 183                     dfolder = path (*cp == '+' || *cp == '@' ? cp + 1 : cp,
 184                             *cp != '@' ? TFOLDER : TSUBCWF);
 185                     continue;
 186                 case DMSGSW:
 187                     if (file)
 188                         die("only one draft message at a time!");
 189                     if (!(file = *argp++) || *file == '-')
 190                         die("missing argument to %s", argp[-2]);
 191                     continue;
 192                 case NDFLDSW:
 193                     dfolder = NULL;
 194                     isdf = NOTOK;
 195                     continue;
 196
 197                 case TOSW:
 198                     if (!(cp = *argp++) || *cp == '-')
 199                         die("missing argument to %s", argp[-2]);
 200                     to = addlist(to, cp);
 201                     continue;
 202
 203                 case CCSW:
 204                     if (!(cp = *argp++) || *cp == '-')
 205                         die("missing argument to %s", argp[-2]);
 206                     cc = addlist(cc, cp);
 207                     continue;
 208
 209                 case FROMSW:
 210                     if (!(cp = *argp++) || *cp == '-')
 211                         die("missing argument to %s", argp[-2]);
 212                     from = addlist(from, cp);
 213                     continue;
 214
 215                 case FCCSW:
 216                     if (!(cp = *argp++) || *cp == '-')
 217                         die("missing argument to %s", argp[-2]);
 218                     dp = NULL;
 219                     if (*cp == '@')
 220                         cp = dp = path(cp + 1, TSUBCWF);
 221                     fcc = addlist(fcc, cp);
 222                     free(dp);
 223                     continue;
 224
 225                 case WIDTHSW:
 226                     if (!(cp = *argp++) || *cp == '-')
 227                         die("missing argument to %s", argp[-2]);
 228                     if ((outputlinelen = atoi(cp)) < 10)
 229                         die("impossible width %d", outputlinelen);
 230                     continue;
 231
 232                 case SUBJECTSW:
 233                     if (!(cp = *argp++) || *cp == '-')
 234                         die("missing argument to %s", argp[-2]);
 235                     subject = cp;
 236                     continue;
 237             }
 238         }
 239         if (*cp == '+' || *cp == '@') {
 240             if (folder)
 241                 die("only one folder at a time!");
 242             folder = pluspath (cp);
 243         } else {
 244             if (msg)
 245                 die("only one message at a time!");
 246             msg = cp;
 247         }
 248     }
 249
 250     cwd = mh_xstrdup(pwd ());
 251
 252     if (!context_find ("path"))
 253         free (path ("./", TFOLDER));
 254
 255     /*
 256      * Check if we are using a draft folder
 257      * and have specified a message in it.
 258      */
 259     if ((dfolder || context_find ("Draft-Folder")) && !folder && msg && !file) {
 260         file = msg;
 261         msg = NULL;
 262     }
 263     if (form && (folder || msg))
 264             die("can't mix forms and folders/msgs");
 265
 266     cp = NULL;
 267
 268     if (folder || msg) {
 269         /*
 270          * Use a message as the "form" for the new message.
 271          */
 272         if (!msg)
 273             msg = "cur";
 274         if (!folder)
 275             folder = getfolder (1);
 276         maildir = m_maildir (folder);
 277
 278         if (chdir (maildir) == NOTOK)
 279             adios (maildir, "unable to change directory to");
 280
 281         /* read folder and create message structure */
 282         if (!(mp = folder_read (folder, 1)))
 283             die("unable to read folder %s", folder);
 284
 285         /* check for empty folder */
 286         if (mp->nummsg == 0)
 287             die("no messages in %s", folder);
 288
 289         /* parse the message range/sequence/name and set SELECTED */
 290         if (!m_convert (mp, msg))
 291             done (1);
 292         seq_setprev (mp);       /* set the previous-sequence */
 293         seq_save (mp);
 294
 295         if (mp->numsel > 1)
 296             die("only one message at a time!");
 297
 298         if ((in = open (form = mh_xstrdup(m_name (mp->lowsel)), O_RDONLY)) == NOTOK)
 299             adios (form, "unable to open message");
 300     } else {
 301         struct comp *cptr;
 302
 303         if (! form)
 304             form = components;
 305
 306         cp = new_fs(form, NULL, NULL);
 307         format_len = strlen(cp);
 308         fmt_compile(cp, &fmt, 1);
 309
 310         /*
 311          * Set up any components that were fed to us on the command line
 312          */
 313
 314         if (from) {
 315             cptr = fmt_findcomp("from");
 316             if (cptr)
 317                 cptr->c_text = from;
 318         }
 319         if (to) {
 320             cptr = fmt_findcomp("to");
 321             if (cptr)
 322                 cptr->c_text = to;
 323         }
 324         if (cc) {
 325             cptr = fmt_findcomp("cc");
 326             if (cptr)
 327                 cptr->c_text = cc;
 328         }
 329         if (fcc) {
 330             cptr = fmt_findcomp("fcc");
 331             if (cptr)
 332                 cptr->c_text = fcc;
 333         }
 334         if (subject) {
 335             cptr = fmt_findcomp("subject");
 336             if (cptr)
 337                 cptr->c_text = subject;
 338         }
 339     }
 340
 341 try_it_again:
 342     strncpy (drft, build ? m_maildir ("draft")
 343                         : m_draft (dfolder, file, use, &isdf), sizeof(drft));
 344
 345     /*
 346      * Check if we have an existing draft
 347      */
 348     if (!build && (out = open (drft, O_RDONLY)) != NOTOK) {
 349         i = fdcompare (in, out);
 350         close (out);
 351
 352         /*
 353          * If we have given -use flag, or if the
 354          * draft is just the same as the components
 355          * file, then no need to ask any questions.
 356          */
 357         if (use || i)
 358             goto edit_it;
 359
 360         if (stat (drft, &st) == NOTOK)
 361             adios (drft, "unable to stat");
 362         printf ("Draft \"%s\" exists (%ld bytes).", drft, (long) st.st_size);
 363         for (i = LISTDSW; i != YESW;) {
 364             if (!(argp = read_switch_multiword ("\nDisposition? ",
 365                                                 isdf ? aqrunl : aqrul)))
 366                 done (1);
 367             switch (i = smatch (*argp, isdf ? aqrunl : aqrul)) {
 368                 case NOSW:
 369                     done (0);
 370                 case NEWSW:
 371                     file = NULL;
 372                     use = NOUSE;
 373                     goto try_it_again;
 374                 case YESW:
 375                     break;
 376                 case USELSW:
 377                     use++;
 378                     goto edit_it;
 379                 case LISTDSW:
 380                     showfile (++argp, drft);
 381                     break;
 382                 case REFILSW:
 383                     if (refile (++argp, drft) == 0)
 384                         i = YESW;
 385                     break;
 386                 default:
 387                     inform("say what?");
 388                     break;
 389             }
 390         }
 391     } else {
 392         if (use)
 393             adios (drft, "unable to open");
 394     }
 395
 396     if ((out = creat (drft, m_gmprot ())) == NOTOK)
 397         adios (drft, "unable to create");
 398     if (cp) {
 399         charstring_t scanl;
 400
 401         i = format_len + 1024;
 402         scanl = charstring_create (i + 2);
 403         dat[0] = 0;
 404         dat[1] = 0;
 405         dat[2] = 0;
 406         dat[3] = outputlinelen;
 407         dat[4] = 0;
 408         fmt_scan(fmt, scanl, i, dat, NULL);
 409         if (write(out, charstring_buffer (scanl),
 410                   charstring_bytes (scanl)) < 0) {
 411             advise (drft, "write");
 412         }
 413         charstring_free(scanl);
 414     } else {
 415         cpydata (in, out, form, drft);
 416         close (in);
 417     }
 418     close (out);
 419
 420 edit_it:
 421     context_save ();    /* save the context file */
 422
 423     if (nwhat)
 424         done (0);
 425     what_now (ed, nedit, use, drft, NULL, 0, NULL, NULL, 0, cwd, 0);
 426     done (1);
 427     return 1;
 428 }