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