diplodocus.org Git - nmh/blob - uip/rmf.c

   1 /* rmf.c -- remove a folder
   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/smatch.h"
  10 #include "sbr/remdir.h"
  11 #include "sbr/ssequal.h"
  12 #include "sbr/m_atoi.h"
  13 #include "sbr/getfolder.h"
  14 #include "sbr/ext_hook.h"
  15 #include "sbr/context_save.h"
  16 #include "sbr/context_replace.h"
  17 #include "sbr/context_del.h"
  18 #include "sbr/context_find.h"
  19 #include "sbr/ambigsw.h"
  20 #include "sbr/path.h"
  21 #include "sbr/print_version.h"
  22 #include "sbr/print_help.h"
  23 #include "sbr/error.h"
  24 #include "h/done.h"
  25 #include "h/utils.h"
  26 #include "sbr/m_maildir.h"
  27 #include "sbr/m_mktemp.h"
  28
  29 #define RMF_SWITCHES \
  30     X("interactive", 0, INTRSW) \
  31     X("nointeractive", 0, NINTRSW) \
  32     X("version", 0, VERSIONSW) \
  33     X("help", 0, HELPSW) \
  34
  35 #define X(sw, minchars, id) id,
  36 DEFINE_SWITCH_ENUM(RMF);
  37 #undef X
  38
  39 #define X(sw, minchars, id) { sw, minchars, id },
  40 DEFINE_SWITCH_ARRAY(RMF, switches);
  41 #undef X
  42
  43 /*
  44  * static prototypes
  45  */
  46 static int rmf(char *);
  47 static void rma (char *);
  48
  49
  50 int
  51 main (int argc, char **argv)
  52 {
  53     bool defolder = false;
  54     int interactive = -1;
  55     char *cp, *folder = NULL, newfolder[BUFSIZ];
  56     char buf[BUFSIZ], **argp, **arguments;
  57     char *fp;
  58
  59     if (nmh_init(argv[0], true, true)) { return 1; }
  60
  61     arguments = getarguments (invo_name, argc, argv, 1);
  62     argp = arguments;
  63
  64     while ((cp = *argp++)) {
  65         if (*cp == '-') {
  66             switch (smatch (++cp, switches)) {
  67                 case AMBIGSW:
  68                     ambigsw (cp, switches);
  69                     done (1);
  70                 case UNKWNSW:
  71                     die("-%s unknown", cp);
  72
  73                 case HELPSW:
  74                     snprintf (buf, sizeof(buf), "%s [+folder] [switches]",
  75                         invo_name);
  76                     print_help (buf, switches, 1);
  77                     done (0);
  78                 case VERSIONSW:
  79                     print_version(invo_name);
  80                     done (0);
  81
  82                 case INTRSW:
  83                     interactive = 1;
  84                     continue;
  85                 case NINTRSW:
  86                     interactive = 0;
  87                     continue;
  88             }
  89         }
  90         if (*cp == '+' || *cp == '@') {
  91             if (folder)
  92                 die("only one folder at a time!");
  93             folder = pluspath (cp);
  94         } else {
  95             die("usage: %s [+folder] [switches]", invo_name);
  96         }
  97     }
  98
  99     if (!context_find ("path"))
 100         free (path ("./", TFOLDER));
 101     if (!folder) {
 102         folder = getfolder (1);
 103         defolder = true;
 104     }
 105     fp = m_mailpath(folder);
 106     if (!strcmp(fp, pwd()))
 107         die("sorry, you can't remove the current working directory");
 108     free(fp);
 109
 110     if (interactive == -1)
 111         interactive = defolder;
 112
 113     if (strchr (folder, '/') && (*folder != '/') && (*folder != '.')) {
 114         for (cp = stpcpy(newfolder, folder); cp > newfolder && *cp != '/'; cp--)
 115             continue;
 116         if (cp > newfolder)
 117             *cp = '\0';
 118         else
 119             strncpy (newfolder, getfolder(0), sizeof(newfolder));
 120     } else {
 121         strncpy (newfolder, getfolder(0), sizeof(newfolder));
 122     }
 123
 124     if (interactive) {
 125         cp = concat ("Remove folder \"", folder, "\"? ", NULL);
 126         if (!read_yes_or_no_if_tty (cp))
 127             done (0);
 128         free (cp);
 129     }
 130
 131     if (rmf (folder) == OK) {
 132         char *cfolder = context_find(pfolder);
 133         if (cfolder && strcmp (cfolder, newfolder)) {
 134             printf ("[+%s now current]\n", newfolder);
 135             context_replace (pfolder, newfolder);       /* update current folder */
 136         }
 137     }
 138     context_save ();    /* save the context file */
 139     done (0);
 140     return 1;
 141 }
 142
 143 static int
 144 rmf (char *folder)
 145 {
 146     int i;
 147     bool others;
 148     char *fp;
 149     char *maildir;
 150     char cur[BUFSIZ];
 151     struct dirent *dp;
 152     DIR *dd;
 153
 154     switch (i = chdir (maildir = m_maildir (folder))) {
 155         case OK:
 156             if (access (".", W_OK) != NOTOK && access ("..", W_OK) != NOTOK)
 157                 break;
 158             /* FALLTHRU */
 159
 160         case NOTOK:
 161             fp = m_mailpath(folder);
 162             snprintf (cur, sizeof(cur), "atr-%s-%s", current, fp);
 163             free(fp);
 164             if (!context_del (cur)) {
 165                 printf ("[+%s de-referenced]\n", folder);
 166                 return OK;
 167             }
 168             inform("you have no profile entry for the %s folder +%s",
 169                     i == NOTOK ? "unreadable" : "read-only", folder);
 170             return NOTOK;
 171     }
 172
 173     if ((dd = opendir (".")) == NULL)
 174         die("unable to read folder +%s", folder);
 175     others = false;
 176
 177     /*
 178      *  Run the external delete hook program.
 179      */
 180
 181     (void)ext_hook("del-hook", maildir, NULL);
 182
 183     while ((dp = readdir (dd))) {
 184         switch (dp->d_name[0]) {
 185             case '.':
 186                 if (strcmp (dp->d_name, ".") == 0
 187                         || strcmp (dp->d_name, "..") == 0)
 188                     continue;
 189                 break;
 190
 191             case ',':
 192                 break;
 193
 194             default:
 195                 if (m_atoi (dp->d_name))
 196                     break;
 197                 if (strcmp (dp->d_name, LINK) == 0
 198                         || has_prefix(dp->d_name, BACKUP_PREFIX))
 199                     break;
 200
 201                 inform("file \"%s/%s\" not deleted, continuing...",
 202                         folder, dp->d_name);
 203                 others = true;
 204                 continue;
 205         }
 206         if (m_unlink (dp->d_name) == NOTOK) {
 207             admonish (dp->d_name, "unable to unlink %s:", folder);
 208             others = true;
 209         }
 210     }
 211
 212     closedir (dd);
 213
 214     /*
 215      * Remove any relevant private sequences
 216      * or attributes from context file.
 217      */
 218     rma (folder);
 219
 220     if (chdir ("..") < 0) {
 221         advise ("..", "chdir");
 222     }
 223     if (!others && remdir (maildir))
 224         return OK;
 225
 226     inform("folder +%s not removed", folder);
 227     return NOTOK;
 228 }
 229
 230
 231 /*
 232  * Remove all the (private) sequence information for
 233  * this folder from the profile/context list.
 234  */
 235
 236 static void
 237 rma (char *folder)
 238 {
 239     int alen, j, plen;
 240     char *cp;
 241     struct node *np, *pp;
 242
 243     alen = LEN("atr-");
 244     plen = strlen (cp = m_mailpath (folder)) + 1;
 245
 246     /*
 247      * Search context list for keys that look like
 248      * "atr-something-folderpath", and remove them.
 249      */
 250     for (np = m_defs, pp = NULL; np; np = np->n_next) {
 251         if (ssequal ("atr-", np->n_name)
 252                 && (j = strlen (np->n_name) - plen) > alen
 253                 && *(np->n_name + j) == '-'
 254                 && strcmp (cp, np->n_name + j + 1) == 0) {
 255             if (!np->n_context)
 256                 inform("bug: context_del(key=\"%s\"), continuing...",
 257                     np->n_name);
 258             if (pp) {
 259                 pp->n_next = np->n_next;
 260                 np = pp;
 261             } else {
 262                 m_defs = np->n_next;
 263             }
 264             ctxflags |= CTXMOD;
 265         } else {
 266             pp = np;
 267         }
 268     }
 269
 270     free(cp);
 271 }