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