static apr_status_t htdbm_open(htdbm_t *htdbm)
{
if (htdbm->create)
return apr_dbm_open_ex(&htdbm->dbm, htdbm->type, htdbm->filename, APR_DBM_RWCREATE,
APR_OS_DEFAULT, htdbm->ctx.pool);
else
return apr_dbm_open_ex(&htdbm->dbm, htdbm->type, htdbm->filename,
htdbm->rdonly ? APR_DBM_READONLY : APR_DBM_READWRITE,
APR_OS_DEFAULT, htdbm->ctx.pool);
}
static char *get_dbm_pw(request_rec *r,
char *user,
char *auth_dbmpwfile,
char *dbtype)
{
apr_dbm_t *f;
apr_datum_t d, q;
char *pw = NULL;
apr_status_t retval;
q.dptr = user;
#ifndef NETSCAPE_DBM_COMPAT
q.dsize = strlen(q.dptr);
#else
q.dsize = strlen(q.dptr) + 1;
#endif
retval = apr_dbm_open_ex(&f, dbtype, auth_dbmpwfile, APR_DBM_READONLY,
APR_OS_DEFAULT, r->pool);
if (retval != APR_SUCCESS) {
ap_log_rerror(APLOG_MARK, APLOG_ERR, retval, r,
"could not open dbm (type %s) auth file: %s", dbtype,
auth_dbmpwfile);
return NULL;
}
if (apr_dbm_fetch(f, q, &d) == APR_SUCCESS && d.dptr) {
pw = apr_palloc(r->pool, d.dsize + 1);
strncpy(pw, d.dptr, d.dsize);
pw[d.dsize] = '\0'; /* Terminate the string */
}
apr_dbm_close(f);
return pw;
}
static apr_status_t fetch_dbm_value(const char *dbmtype, const char *dbmfile,
const char *user, char **value,
apr_pool_t *pool)
{
apr_dbm_t *f;
apr_datum_t key, val;
apr_status_t rv;
rv = apr_dbm_open_ex(&f, dbmtype, dbmfile, APR_DBM_READONLY,
APR_OS_DEFAULT, pool);
if (rv != APR_SUCCESS) {
return rv;
}
key.dptr = (char*)user;
#ifndef NETSCAPE_DBM_COMPAT
key.dsize = strlen(key.dptr);
#else
key.dsize = strlen(key.dptr) + 1;
#endif
*value = NULL;
if (apr_dbm_fetch(f, key, &val) == APR_SUCCESS && val.dptr) {
*value = apr_pstrmemdup(pool, val.dptr, val.dsize);
}
apr_dbm_close(f);
return rv;
}
static ftpd_chroot_status_t ftpd_dbm_map_chroot(const request_rec *r,
const char **chroot,
const char **initroot)
{
apr_status_t res;
apr_dbm_t *file;
ftpd_chroot_status_t ret = FTPD_CHROOT_USER_NOT_FOUND;
apr_datum_t key,val = { 0 };
char *value, *tok, *tok_ses;
ftpd_user_rec *ur __attribute__ ((unused))= ftpd_get_user_rec(r);
ftpd_dbm_server_conf *pConfig = ap_get_module_config(r->server->module_config,
&ftpd_dbm_module);
if ((res = apr_dbm_open_ex(&file, pConfig->dbtype, pConfig->chrootdb_path,
APR_DBM_READONLY, APR_OS_DEFAULT, r->pool))
!= APR_SUCCESS) {
ap_log_rerror(APLOG_MARK, APLOG_ERR, res, r,
"Error opening DBM file: %s",pConfig->chrootdb_path);
ret = FTPD_CHROOT_FAIL;
} else {
if (file != NULL) {
/* search the DB */
key.dptr = r->user;
key.dsize = strlen(key.dptr);
if (apr_dbm_exists(file, key)) {
if (apr_dbm_fetch(file, key, &val) == APR_SUCCESS) {
value = apr_pstrndup(r->pool, val.dptr, val.dsize);
tok = apr_strtok(value, ":", &tok_ses);
if (tok != NULL) {
*chroot = apr_pstrdup(r->pool, tok);
tok = apr_strtok(NULL, ":", &tok_ses);
if (tok != NULL) {
*initroot = apr_pstrdup(r->pool, tok);
}
ret = FTPD_CHROOT_USER_FOUND;
} else {
ret = FTPD_CHROOT_FAIL;
}
}
}
apr_dbm_close(file);
} else {
ap_log_rerror(APLOG_MARK, APLOG_ERR, 0, r,
"File open failed: %s",pConfig->chrootdb_path);
ret = FTPD_CHROOT_FAIL;
}
}
return ret;
}
static apr_status_t get_dbm_grp(request_rec *r, char *key1, char *key2,
const char *dbmgrpfile, const char *dbtype,
const char ** out)
{
char *grp_colon, *val;
apr_status_t retval;
apr_dbm_t *f;
retval = apr_dbm_open_ex(&f, dbtype, dbmgrpfile, APR_DBM_READONLY,
APR_OS_DEFAULT, r->pool);
if (retval != APR_SUCCESS) {
return retval;
}
/* Try key2 only if key1 failed */
if (!(val = get_dbm_entry_as_str(r->pool, f, key1))) {
val = get_dbm_entry_as_str(r->pool, f, key2);
}
apr_dbm_close(f);
if (val && (grp_colon = ap_strchr(val, ':')) != NULL) {
char *grp_colon2 = ap_strchr(++grp_colon, ':');
if (grp_colon2) {
*grp_colon2 = '\0';
}
*out = grp_colon;
}
else {
*out = val;
}
return retval;
}
int main(int argc, const char *const argv[])
{
apr_pool_t *pool;
apr_status_t rv = APR_SUCCESS;
apr_getopt_t *opt;
const char *opt_arg;
char ch;
apr_file_t *infile;
apr_dbm_t *outdbm;
apr_app_initialize(&argc, &argv, NULL);
atexit(apr_terminate);
verbose = 0;
format = NULL;
input = NULL;
output = NULL;
apr_pool_create(&pool, NULL);
if (argc) {
shortname = apr_filepath_name_get(argv[0]);
}
else {
shortname = "httxt2dbm";
}
apr_file_open_stderr(&errfile, pool);
rv = apr_getopt_init(&opt, pool, argc, argv);
if (rv != APR_SUCCESS) {
apr_file_printf(errfile, "Error: apr_getopt_init failed."NL NL);
return 1;
}
if (argc <= 1) {
usage();
return 1;
}
while ((rv = apr_getopt(opt, "vf::i::o::", &ch, &opt_arg)) == APR_SUCCESS) {
switch (ch) {
case 'v':
if (verbose) {
apr_file_printf(errfile, "Error: -v can only be passed once" NL NL);
usage();
return 1;
}
verbose = 1;
break;
case 'f':
if (format) {
apr_file_printf(errfile, "Error: -f can only be passed once" NL NL);
usage();
return 1;
}
format = apr_pstrdup(pool, opt_arg);
break;
case 'i':
if (input) {
apr_file_printf(errfile, "Error: -i can only be passed once" NL NL);
usage();
return 1;
}
input = apr_pstrdup(pool, opt_arg);
break;
case 'o':
if (output) {
apr_file_printf(errfile, "Error: -o can only be passed once" NL NL);
usage();
return 1;
}
output = apr_pstrdup(pool, opt_arg);
break;
}
}
if (rv != APR_EOF) {
apr_file_printf(errfile, "Error: Parsing Arguments Failed" NL NL);
usage();
return 1;
}
if (!input) {
apr_file_printf(errfile, "Error: No input file specified." NL NL);
usage();
return 1;
}
if (!output) {
apr_file_printf(errfile, "Error: No output DBM specified." NL NL);
usage();
return 1;
}
if (!format) {
format = "default";
}
if (verbose) {
apr_file_printf(errfile, "DBM Format: %s"NL, format);
}
if (!strcmp(input, "-")) {
rv = apr_file_open_stdin(&infile, pool);
}
else {
rv = apr_file_open(&infile, input, APR_READ|APR_BUFFERED,
APR_OS_DEFAULT, pool);
}
if (rv != APR_SUCCESS) {
apr_file_printf(errfile,
"Error: Cannot open input file '%s': (%d) %s" NL NL,
input, rv, apr_strerror(rv, errbuf, sizeof(errbuf)));
return 1;
}
if (verbose) {
apr_file_printf(errfile, "Input File: %s"NL, input);
}
rv = apr_dbm_open_ex(&outdbm, format, output, APR_DBM_RWCREATE,
APR_OS_DEFAULT, pool);
if (APR_STATUS_IS_ENOTIMPL(rv)) {
apr_file_printf(errfile,
"Error: The requested DBM Format '%s' is not available." NL NL,
format);
return 1;
}
if (rv != APR_SUCCESS) {
apr_file_printf(errfile,
"Error: Cannot open output DBM '%s': (%d) %s" NL NL,
output, rv, apr_strerror(rv, errbuf, sizeof(errbuf)));
return 1;
}
if (verbose) {
apr_file_printf(errfile, "DBM File: %s"NL, output);
}
rv = to_dbm(outdbm, infile, pool);
if (rv != APR_SUCCESS) {
apr_file_printf(errfile,
"Error: Converting to DBM: (%d) %s" NL NL,
rv, apr_strerror(rv, errbuf, sizeof(errbuf)));
return 1;
}
apr_dbm_close(outdbm);
if (verbose) {
apr_file_printf(errfile, "Conversion Complete." NL);
}
return 0;
}
APU_DECLARE(apr_status_t) apr_dbm_open(apr_dbm_t **pdb, const char *pathname,
apr_int32_t mode, apr_fileperms_t perm,
apr_pool_t *pool)
{
return apr_dbm_open_ex(pdb, DBM_NAME, pathname, mode, perm, pool);
}
static int xlate_name(request_rec *r)
{
int i;
const char *name;
char *backend;
apr_dbm_t *db;
apr_status_t rv;
apr_datum_t key, val;
struct proxy_alias *ralias;
proxy_dir_conf *dconf;
express_server_conf *sconf;
sconf = ap_get_module_config(r->server->module_config, &proxy_express_module);
dconf = ap_get_module_config(r->per_dir_config, &proxy_module);
if (!sconf->enabled) {
return DECLINED;
}
ap_log_rerror(APLOG_MARK, APLOG_DEBUG, 0, r, APLOGNO(01001) "proxy_express: Enabled");
if (!sconf->dbmfile || (r->filename && strncmp(r->filename, "proxy:", 6) == 0)) {
/* it should be go on as an internal proxy request */
return DECLINED;
}
ap_log_rerror(APLOG_MARK, APLOG_DEBUG, 0, r, APLOGNO(01002)
"proxy_express: Opening DBM file: %s (%s)",
sconf->dbmfile, sconf->dbmtype);
rv = apr_dbm_open_ex(&db, sconf->dbmtype, sconf->dbmfile, APR_DBM_READONLY,
APR_OS_DEFAULT, r->pool);
if (rv != APR_SUCCESS) {
return DECLINED;
}
name = ap_get_server_name(r);
ap_log_rerror(APLOG_MARK, APLOG_DEBUG, 0, r, APLOGNO(01003)
"proxy_express: looking for %s", name);
key.dptr = (char *)name;
key.dsize = strlen(key.dptr);
rv = apr_dbm_fetch(db, key, &val);
apr_dbm_close(db);
if (rv != APR_SUCCESS) {
return DECLINED;
}
backend = apr_pstrmemdup(r->pool, val.dptr, val.dsize);
if (!backend) {
return DECLINED;
}
ap_log_rerror(APLOG_MARK, APLOG_DEBUG, 0, r, APLOGNO(01004)
"proxy_express: found %s -> %s", name, backend);
r->filename = apr_pstrcat(r->pool, "proxy:", backend, r->uri, NULL);
r->handler = "proxy-server";
r->proxyreq = PROXYREQ_REVERSE;
ap_log_rerror(APLOG_MARK, APLOG_DEBUG, 0, r, APLOGNO(01005)
"proxy_express: rewritten as: %s", r->filename);
ralias = (struct proxy_alias *)dconf->raliases->elts;
/*
* See if we have already added a ProxyPassReverse entry
* for this host... If so, don't do it again.
*/
/*
* NOTE: dconf is process specific so this wil only
* work as long as we maintain that this process
* or thread is handling the backend
*/
for (i = 0; i < dconf->raliases->nelts; i++, ralias++) {
if (strcasecmp(backend, ralias->real) == 0) {
ralias = NULL;
break;
}
}
/* Didn't find one... add it */
if (!ralias) {
ap_log_rerror(APLOG_MARK, APLOG_DEBUG, 0, r, APLOGNO(01006)
"proxy_express: adding PPR entry");
ralias = apr_array_push(dconf->raliases);
ralias->fake = "/";
ralias->real = apr_pstrdup(dconf->raliases->pool, backend);
ralias->flags = 0;
}
return OK;
}
