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