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/read_yes_or_no_if_tty.h"
  10 #include "sbr/concat.h"
  11 #include "sbr/smatch.h"
  12 #include "sbr/remdir.h"
  13 #include "sbr/ssequal.h"
  14 #include "sbr/m_atoi.h"
  15 #include "sbr/getfolder.h"
  16 #include "sbr/ext_hook.h"
  17 #include "sbr/context_save.h"
  18 #include "sbr/context_replace.h"
  19 #include "sbr/context_del.h"
  20 #include "sbr/context_find.h"
  21 #include "sbr/ambigsw.h"
  22 #include "sbr/path.h"
  23 #include "sbr/print_version.h"
  24 #include "sbr/print_help.h"
  25 #include "sbr/error.h"
  26 #include "h/done.h"
  27 #include "h/utils.h"
  28 #include "sbr/m_maildir.h"
  29 #include "sbr/m_mktemp.h"
  30
  31 #define RMF_SWITCHES \
  32     X("interactive", 0, INTRSW) \
  33     X("nointeractive", 0, NINTRSW) \
  34     X("version", 0, VERSIONSW) \
  35     X("help", 0, HELPSW) \
  36
  37 #define X(sw, minchars, id) id,
  38 DEFINE_SWITCH_ENUM(RMF);
  39 #undef X
  40
  41 #define X(sw, minchars, id) { sw, minchars, id },
  42 DEFINE_SWITCH_ARRAY(RMF, switches);
  43 #undef X
  44
  45 /*
  46  * static prototypes
  47  */
  48 static int rmf(char *);
  49 static void rma (char *);
  50
  51
  52 int
  53 main (int argc, char **argv)
  54 {
  55     bool defolder = false;
  56     int interactive = -1;
  57     char *cp, *folder = NULL, newfolder[BUFSIZ];
  58     char buf[BUFSIZ], **argp, **arguments;
  59     char *fp;
  60
  61     if (nmh_init(argv[0], true, true)) { return 1; }
  62
  63     arguments = getarguments (invo_name, argc, argv, 1);
  64     argp = arguments;
  65
  66     while ((cp = *argp++)) {
  67         if (*cp == '-') {
  68             switch (smatch (++cp, switches)) {
  69                 case AMBIGSW:
  70                     ambigsw (cp, switches);
  71                     done (1);
  72                 case UNKWNSW:
  73                     die("-%s unknown", cp);
  74
  75                 case HELPSW:
  76                     snprintf (buf, sizeof(buf), "%s [+folder] [switches]",
  77                         invo_name);
  78                     print_help (buf, switches, 1);
  79                     done (0);
  80                 case VERSIONSW:
  81                     print_version(invo_name);
  82                     done (0);
  83
  84                 case INTRSW:
  85                     interactive = 1;
  86                     continue;
  87                 case NINTRSW:
  88                     interactive = 0;
  89                     continue;
  90             }
  91         }
  92         if (*cp == '+' || *cp == '@') {
  93             if (folder)
  94                 die("only one folder at a time!");
  95             folder = pluspath (cp);
  96         } else {
  97             die("usage: %s [+folder] [switches]", invo_name);
  98         }
  99     }
 100
 101     if (!context_find ("path"))
 102         free (path ("./", TFOLDER));
 103     if (!folder) {
 104         folder = getfolder (1);
 105         defolder = true;
 106     }
 107     fp = m_mailpath(folder);
 108     if (!strcmp(fp, pwd()))
 109         die("sorry, you can't remove the current working directory");
 110     free(fp);
 111
 112     if (interactive == -1)
 113         interactive = defolder;
 114
 115     if (strchr (folder, '/') && (*folder != '/') && (*folder != '.')) {
 116         for (cp = stpcpy(newfolder, folder); cp > newfolder && *cp != '/'; cp--)
 117             continue;
 118         if (cp > newfolder)
 119             *cp = '\0';
 120         else
 121             strncpy (newfolder, getfolder(0), sizeof(newfolder));
 122     } else {
 123         strncpy (newfolder, getfolder(0), sizeof(newfolder));
 124     }
 125
 126     if (interactive) {
 127         cp = concat ("Remove folder \"", folder, "\"? ", NULL);
 128         if (!read_yes_or_no_if_tty (cp))
 129             done (0);
 130         free (cp);
 131     }
 132
 133     if (rmf (folder) == OK) {
 134         char *cfolder = context_find(pfolder);
 135         if (cfolder && strcmp (cfolder, newfolder)) {
 136             printf ("[+%s now current]\n", newfolder);
 137             context_replace (pfolder, newfolder);       /* update current folder */
 138         }
 139     }
 140     context_save ();    /* save the context file */
 141     done (0);
 142     return 1;
 143 }
 144
 145 static int
 146 rmf (char *folder)
 147 {
 148     int i;
 149     bool others;
 150     char *fp;
 151     char *maildir;
 152     char cur[BUFSIZ];
 153     struct dirent *dp;
 154     DIR *dd;
 155
 156     switch (i = chdir (maildir = m_maildir (folder))) {
 157         case OK:
 158             if (access (".", W_OK) != NOTOK && access ("..", W_OK) != NOTOK)
 159                 break;
 160             /* FALLTHRU */
 161
 162         case NOTOK:
 163             fp = m_mailpath(folder);
 164             snprintf (cur, sizeof(cur), "atr-%s-%s", current, fp);
 165             free(fp);
 166             if (!context_del (cur)) {
 167                 printf ("[+%s de-referenced]\n", folder);
 168                 return OK;
 169             }
 170             inform("you have no profile entry for the %s folder +%s",
 171                     i == NOTOK ? "unreadable" : "read-only", folder);
 172             return NOTOK;
 173     }
 174
 175     if ((dd = opendir (".")) == NULL)
 176         die("unable to read folder +%s", folder);
 177     others = false;
 178
 179     /*
 180      *  Run the external delete hook program.
 181      */
 182
 183     (void)ext_hook("del-hook", maildir, NULL);
 184
 185     while ((dp = readdir (dd))) {
 186         switch (dp->d_name[0]) {
 187             case '.':
 188                 if (strcmp (dp->d_name, ".") == 0
 189                         || strcmp (dp->d_name, "..") == 0)
 190                     continue;
 191                 break;
 192
 193             case ',':
 194                 break;
 195
 196             default:
 197                 if (m_atoi (dp->d_name))
 198                     break;
 199                 if (strcmp (dp->d_name, LINK) == 0
 200                         || has_prefix(dp->d_name, BACKUP_PREFIX))
 201                     break;
 202
 203                 inform("file \"%s/%s\" not deleted, continuing...",
 204                         folder, dp->d_name);
 205                 others = true;
 206                 continue;
 207         }
 208         if (m_unlink (dp->d_name) == NOTOK) {
 209             admonish (dp->d_name, "unable to unlink %s:", folder);
 210             others = true;
 211         }
 212     }
 213
 214     closedir (dd);
 215
 216     /*
 217      * Remove any relevant private sequences
 218      * or attributes from context file.
 219      */
 220     rma (folder);
 221
 222     if (chdir ("..") < 0) {
 223         advise ("..", "chdir");
 224     }
 225     if (!others && remdir (maildir))
 226         return OK;
 227
 228     inform("folder +%s not removed", folder);
 229     return NOTOK;
 230 }
 231
 232
 233 /*
 234  * Remove all the (private) sequence information for
 235  * this folder from the profile/context list.
 236  */
 237
 238 static void
 239 rma (char *folder)
 240 {
 241     int alen, j, plen;
 242     char *cp;
 243     struct node *np, *pp;
 244
 245     alen = LEN("atr-");
 246     plen = strlen (cp = m_mailpath (folder)) + 1;
 247
 248     /*
 249      * Search context list for keys that look like
 250      * "atr-something-folderpath", and remove them.
 251      */
 252     for (np = m_defs, pp = NULL; np; np = np->n_next) {
 253         if (ssequal ("atr-", np->n_name)
 254                 && (j = strlen (np->n_name) - plen) > alen
 255                 && *(np->n_name + j) == '-'
 256                 && strcmp (cp, np->n_name + j + 1) == 0) {
 257             if (!np->n_context)
 258                 inform("bug: context_del(key=\"%s\"), continuing...",
 259                     np->n_name);
 260             if (pp) {
 261                 pp->n_next = np->n_next;
 262                 np = pp;
 263             } else {
 264                 m_defs = np->n_next;
 265             }
 266             ctxflags |= CTXMOD;
 267         } else {
 268             pp = np;
 269         }
 270     }
 271
 272     free(cp);
 273 }