NameTrans pfx2dir with 'from' as wildcard?

Question

Hi,
Is it possible to use a wildcard in the 'from' parameter of a pfx2dir NameTrans directive? This is with Web Server 6.1.
I've tried all sorts of ways but nothing seems to work.
What I'm trying to do is convert several permutations of a URI, e.g.:
Instead of several directives such as
... from="/uri" dir="/path/to/uri"
... from="/URI" dir="/path/to/uri"
<etc>just use a single one with a wildcard:
...from="/[uU][rR][iI]" dir="/path/to/uri"At the moment we have hundreds of these directives in obj.conf, and we could get rid of most of them if pfx2dir will accept a wildcarded 'from' parameter

Answer 1

No, it's not possible. The pfx2dir SAF's from parameter specifies a prefix, not a wildcard pattern.
You could probably get the functionality you're looking for using the <Client> tag in combination with the redirect SAF. However, if you have hunderds of such directives, you're probably better off with a custom NSAPI plugin.
The following custom SAF, map-shortcut, seems to do what you want:
#include <string.h>
#include "nsapi.h"
NSAPI_PUBLIC int map_shortcut(pblock *pb, Session *sn, Request *rq)
    pb_param *pp;
    char *from;
    char *dir;
    int fromlen;
    char *suffix;
    /* pp is the partial path (URI) */
    pp = pblock_find("ppath", rq->vars);
    /* from and dir are this SAF's parameters */
    from = pblock_findval("from", pb);
    dir = pblock_findval("dir", pb);
    if ((!from) || (!dir)) {
        log_error(LOG_MISCONFIG, "map-shortcut", sn, rq,
                  "missing parameter (need from and dir)");
        return REQ_ABORTED;
    /* Check for a from prefix match (N.B. case insensitive) */
    fromlen = strlen(from);
    if (strncasecmp(from, pp->value, fromlen))
        return REQ_NOACTION; /* no match */
    /* The from prefix matched; now check that the suffix begins with a '/' */
    suffix = pp->value + fromlen;
    if (*suffix && *suffix != '/')
        return REQ_NOACTION; /* no match */
    /* We matched the from prefix, so everything will be relative to dir */
    pblock_nvinsert("ntrans-base", dir, rq->vars);
    /* Rewrite the partial path so that it begins with dir */
    FREE(pp->value);
    pp->value = (char *)MALLOC(strlen(dir) + strlen(suffix) + 1);
    strcpy(pp->value, dir);
    strcat(pp->value, suffix);
    return REQ_PROCEED;
}