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