void
Item::ensure_integrity()
{
if (_ensured)
return;
static const Glib::ustring _empty("Empty title");
if (_link.empty() && !_guid.empty())
_link = _guid;
if (_title.empty())
_title = _empty;
const Glib::ustring s = _description;
remove_markup (s, _description);
bool rd_is_valid = false;
if (!_rcvdate.empty())
{
Glib::Date my;
int y, m, d;
sscanf (_rcvdate.c_str(), "%d-%d-%d", &y, &m, &d);
my.set_day (d);
my.set_year (y);
my.set_month (Glib::Date::JANUARY);
my.add_months (m-1);
rd_is_valid = my.valid();
}
if (!rd_is_valid)
{
g_warning ("Invalid date: %s ... fixing", _rcvdate.c_str());
Glib::Date now;
now.set_time_current();
_rcvdate = now.format_string ("%Y-%m-%d");
}
_ensured = true;
}
/** Limit an attribute's possible values, using either an enum or a
* regexp /limit.
* \verbatim
* Given a name, restriction type and string for an attribute,
* set its data value to said data and set a flag for limit or
* enum.
*
* For an enum, the attr's data will be set to
* <delim><pattern><delim>, so a simple strstr() can be used when
* matching the pattern.
*
* An optional delimiter can be provided on the left hand side by using
* @attr/enum <delim> <attrname>=<enum list>
* \endverbatim
* \param player the enactor.
* \param name the attribute name.
* \param type AF_RLIMIT for regexp, AF_ENUM for enum.
* \param pattern The allowed pattern for the attribute.
*/
void
do_attribute_limit(dbref player, char *name, int type, char *pattern)
{
ATTR *ap;
char buff[BUFFER_LEN];
char *ptr, *bp;
char delim = ' ';
pcre *re;
const char *errptr;
int erroffset;
int unset = 0;
if (pattern && *pattern) {
if (type == AF_RLIMIT) {
/* Compile to regexp. */
re = pcre_compile(remove_markup(pattern, NULL), PCRE_CASELESS,
&errptr, &erroffset, tables);
if (!re) {
notify(player, T("Invalid Regular Expression."));
return;
}
/* We only care if it's valid, we're not using it. */
free(re);
/* Copy it to buff to be placed into ap->data. */
snprintf(buff, BUFFER_LEN, "%s", pattern);
} else if (type == AF_ENUM) {
ptr = name;
/* Check for a delimiter: @attr/enum | attrname=foo */
if ((name = strchr(ptr, ' ')) != NULL) {
*(name++) = '\0';
if (strlen(ptr) > 1) {
notify(player, T("Delimiter must be one character."));
return;
}
delim = *ptr;
} else {
name = ptr;
delim = ' ';
}
/* For speed purposes, we require the pattern to begin and end with
* a delimiter. */
snprintf(buff, BUFFER_LEN, "%c%s%c", delim, pattern, delim);
buff[BUFFER_LEN - 1] = '\0';
/* For sanity's sake, we'll enforce a properly delimited enum
* with a quick and dirty squish().
* We already know we start with a delim, hence the +1 =). */
for (ptr = buff + 1, bp = buff + 1; *ptr; ptr++) {
if (!(*ptr == delim && *(ptr - 1) == delim)) {
*(bp++) = *ptr;
}
}
*bp = '\0';
} else {
/* Err, we got called with the wrong limit type? */
notify(player, T("Unknown limit type?"));
return;
}
} else {
unset = 1;
}
/* Parse name and perms */
if (!name || !*name) {
notify(player, T("Which attribute do you mean?"));
return;
}
upcasestr(name);
if (*name == '@')
name++;
/* Is this attribute already in the table? */
ap = (ATTR *) ptab_find_exact(&ptab_attrib, name);
if (!ap) {
notify(player,
T
("I don't know that attribute. Please use @attribute/access to create it, first."));
return;
}
if (AF_Internal(ap)) {
/* Don't muck with internal attributes */
notify(player, T("That attribute's permissions cannot be changed."));
return;
}
/* All's good, set the data and the AF_RLIMIT or AF_ENUM flag. */
if (ap->data != NULL_CHUNK_REFERENCE) {
chunk_delete(ap->data);
}
/* Clear any extant rlimit or enum flags */
ap->flags &= ~(AF_RLIMIT | AF_ENUM);
if (unset) {
if (ap->data != NULL_CHUNK_REFERENCE) {
ap->data = NULL_CHUNK_REFERENCE;
notify_format(player, T("%s -- Attribute limit or enum unset."), name);
} else {
notify_format(player,
T("%s -- Attribute limit or enum already unset."), name);
}
} else {
unsigned char *t = compress(buff);
ap->data = chunk_create(t, u_strlen(t), 0);
free(t);
ap->flags |= type;
notify_format(player,
T("%s -- Attribute %s set to: %s"), name,
type == AF_RLIMIT ? "limit" : "enum", display_attr_limit(ap));
}
}
/** Check an attribute's value against /limit or /enum restrictions.
* \param player Player attempting to set the attribute. Used for notify()
* \param name the attribute name.
* \param value The desired attribute value.
* \retval The new value to set if valid, NULL if not.
*/
const char *
check_attr_value(dbref player, const char *name, const char *value)
{
/* Check for attribute limits and enums. */
ATTR *ap;
char *attrval;
pcre *re;
int subpatterns;
const char *errptr;
int erroffset;
char *ptr, *ptr2;
char delim;
int len;
static char buff[BUFFER_LEN];
char vbuff[BUFFER_LEN];
if (!name || !*name)
return value;
if (!value)
return value;
upcasestr((char *) name);
ap = (ATTR *) ptab_find_exact(&ptab_attrib, name);
if (!ap)
return value;
attrval = atr_value(ap);
if (!attrval) {
return value;
}
if (ap->flags & AF_RLIMIT) {
re = pcre_compile(remove_markup(attrval, NULL), PCRE_CASELESS,
&errptr, &erroffset, tables);
if (!re)
return value;
subpatterns = pcre_exec(re, default_match_limit(), value, strlen(value),
0, 0, NULL, 0);
free(re);
if (subpatterns >= 0) {
return value;
} else {
notify(player, T("Attribute value does not match the /limit regexp."));
return NULL;
}
} else if (ap->flags & AF_ENUM) {
/* Delimiter is always the first character of the enum string.
* and the value cannot have the delimiter in it. */
delim = *attrval;
if (!*value || strchr(value, delim)) {
notify_format(player,
T("Value for %s needs to be one of: %s"),
ap->name, display_attr_limit(ap));
return NULL;
}
/* We match the enum case-insensitively, BUT we use the case
* that is defined in the enum, so we copy the attr value
* to buff and use that. */
snprintf(buff, BUFFER_LEN, "%s", attrval);
upcasestr(buff);
len = strlen(value);
snprintf(vbuff, BUFFER_LEN, "%c%s%c", delim, value, delim);
upcasestr(vbuff);
ptr = strstr(buff, vbuff);
if (!ptr) {
*(vbuff + len + 1) = '\0'; /* Remove the second delim */
ptr = strstr(buff, vbuff);
}
/* Do we have a match? */
if (ptr) {
/* ptr is pointing at the delim before the value. */
ptr++;
ptr2 = strchr(ptr, delim);
if (!ptr2)
return NULL; /* Shouldn't happen, but sanity check. */
/* Now we need to copy over the _original case_ version of the
* enumerated string. Nasty pointer arithmetic. */
strncpy(buff, attrval + (ptr - buff), (int) (ptr2 - ptr));
buff[ptr2 - ptr] = '\0';
return buff;
} else {
notify_format(player,
T("Value for %s needs to be one of: %s"),
ap->name, display_attr_limit(ap));
return NULL;
}
}
return value;
}
