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