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