wmi-1.3.16 from opsview.com
This commit is contained in:
Are Casilla
@@ -0,0 +1,482 @@
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/*
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Unix SMB/CIFS implementation.
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utility functions for manipulating mpr variables in ejs calls
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Copyright (C) Andrew Tridgell 2005
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include "includes.h"
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#include "lib/appweb/ejs/ejs.h"
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#include "lib/ldb/include/ldb.h"
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#include "scripting/ejs/smbcalls.h"
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/*
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return a default mpr object
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*/
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struct MprVar mprObject(const char *name)
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{
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return ejsCreateObj(name && *name?name:"(NULL)", MPR_DEFAULT_HASH_SIZE);
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}
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/*
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return a empty mpr array
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*/
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struct MprVar mprArray(const char *name)
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{
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return ejsCreateArray(name && *name?name:"(NULL)", 0);
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}
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/*
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find a mpr component, allowing for sub objects, using the '.' convention
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*/
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NTSTATUS mprGetVar(struct MprVar **v, const char *name)
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{
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const char *p = strchr(name, '.');
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char *objname;
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NTSTATUS status;
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if (p == NULL) {
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*v = mprGetProperty(*v, name, NULL);
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if (*v == NULL) {
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DEBUG(1,("mprGetVar unable to find '%s'\n", name));
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return NT_STATUS_INVALID_PARAMETER;
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}
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return NT_STATUS_OK;
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}
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objname = talloc_strndup(mprMemCtx(), name, p-name);
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NT_STATUS_HAVE_NO_MEMORY(objname);
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*v = mprGetProperty(*v, objname, NULL);
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NT_STATUS_HAVE_NO_MEMORY(*v);
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status = mprGetVar(v, p+1);
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talloc_free(objname);
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return status;
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}
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/*
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set a mpr component, allowing for sub objects, using the '.' convention
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destroys 'val' after setting
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*/
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NTSTATUS mprSetVar(struct MprVar *v, const char *name, struct MprVar val)
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{
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const char *p = strchr(name, '.');
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char *objname;
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struct MprVar *v2;
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NTSTATUS status;
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if (p == NULL) {
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v2 = mprSetProperty(v, name, &val);
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if (v2 == NULL) {
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DEBUG(1,("mprSetVar unable to set '%s'\n", name));
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return NT_STATUS_INVALID_PARAMETER_MIX;
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}
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mprDestroyVar(&val);
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return NT_STATUS_OK;
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}
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objname = talloc_strndup(mprMemCtx(), name, p-name);
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if (objname == NULL) {
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return NT_STATUS_NO_MEMORY;
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}
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v2 = mprGetProperty(v, objname, NULL);
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if (v2 == NULL) {
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mprSetVar(v, objname, mprObject(objname));
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v2 = mprGetProperty(v, objname, NULL);
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}
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status = mprSetVar(v2, p+1, val);
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talloc_free(objname);
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return status;
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}
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/*
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add an indexed array element to a property
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*/
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void mprAddArray(struct MprVar *var, int i, struct MprVar v)
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{
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char idx[16];
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mprItoa(i, idx, sizeof(idx));
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mprSetVar(var, idx, v);
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}
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/*
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construct a MprVar from a list
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*/
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struct MprVar mprList(const char *name, const char **list)
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{
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struct MprVar var;
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int i;
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var = mprArray(name);
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for (i=0;list && list[i];i++) {
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mprAddArray(&var, i, mprString(list[i]));
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}
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return var;
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}
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/*
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construct a MprVar from a string, using NULL if needed
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*/
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struct MprVar mprString(const char *s)
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{
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if (s == NULL) {
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return mprCreatePtrVar(NULL);
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}
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return mprCreateStringVar(s, True);
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}
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/*
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construct a string MprVar from a lump of data
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*/
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struct MprVar mprData(const uint8_t *p, size_t length)
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{
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struct MprVar var;
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char *s = talloc_strndup(mprMemCtx(), (const char *)p, length);
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if (s == NULL) {
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return mprCreateUndefinedVar();
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}
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var = mprString(s);
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talloc_free(s);
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return var;
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}
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/*
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turn a ldb_message into a ejs object variable
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*/
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static struct MprVar mprLdbMessage(struct ldb_context *ldb, struct ldb_message *msg)
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{
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struct MprVar var;
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int i;
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/* we force some attributes to always be an array in the
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returned structure. This makes the scripting easier, as you don't
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need a special case for the single value case */
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const char *multivalued[] = { "objectClass", "memberOf", "privilege",
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"member", NULL };
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var = mprObject(ldb_dn_alloc_linearized(msg, msg->dn));
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for (i=0;i<msg->num_elements;i++) {
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struct ldb_message_element *el = &msg->elements[i];
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struct MprVar val;
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const struct ldb_attrib_handler *attr;
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struct ldb_val v;
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attr = ldb_attrib_handler(ldb, el->name);
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if (attr == NULL) {
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goto failed;
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}
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if (el->num_values == 1 &&
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!str_list_check_ci(multivalued, el->name)) {
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if (attr->ldif_write_fn(ldb, msg, &el->values[0], &v) != 0) {
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goto failed;
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}
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/* FIXME: nasty hack, remove me when ejs will support
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* arbitrary string and does not truncate on \0 */
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if (strlen((char *)v.data) != v.length) {
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val = mprDataBlob(v);
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} else {
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val = mprData(v.data, v.length);
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}
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} else {
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int j;
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val = mprArray(el->name);
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for (j=0;j<el->num_values;j++) {
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if (attr->ldif_write_fn(ldb, msg,
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&el->values[j], &v) != 0) {
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goto failed;
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}
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/* FIXME: nasty hack, remove me when ejs will support
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* arbitrary string and does not truncate on \0 */
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if (strlen((char *)v.data) != v.length) {
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mprAddArray(&val, j, mprDataBlob(v));
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} else {
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mprAddArray(&val, j, mprData(v.data, v.length));
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}
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}
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}
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mprSetVar(&var, el->name, val);
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}
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/* add the dn if it is not already specified */
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if (mprGetProperty(&var, "dn", 0) == 0) {
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mprSetVar(&var, "dn", mprString(ldb_dn_alloc_linearized(msg, msg->dn)));
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}
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return var;
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failed:
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return mprCreateUndefinedVar();
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}
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/*
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turn an array of ldb_messages into a ejs object variable
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*/
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struct MprVar mprLdbArray(struct ldb_context *ldb,
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struct ldb_message **msg, int count, const char *name)
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{
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struct MprVar res;
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int i;
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res = mprArray(name);
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for (i=0;i<count;i++) {
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mprAddArray(&res, i, mprLdbMessage(ldb, msg[i]));
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}
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return res;
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}
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/*
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turn a MprVar string variable into a const char *
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*/
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const char *mprToString(struct MprVar *v)
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{
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if (v->trigger) {
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mprReadProperty(v, 0);
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}
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if (!mprVarIsString(v->type)) return NULL;
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return v->string;
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}
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/*
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turn a MprVar integer variable into an int
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*/
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int mprToInt(struct MprVar *v)
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{
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if (v->trigger) {
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mprReadProperty(v, 0);
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}
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if (!mprVarIsNumber(v->type)) return 0;
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return mprVarToNumber(v);
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}
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/*
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turn a MprVar object variable into a string list
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this assumes the object variable consists only of strings
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*/
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const char **mprToList(TALLOC_CTX *mem_ctx, struct MprVar *v)
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{
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const char **list = NULL;
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struct MprVar *el;
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if (v->type != MPR_TYPE_OBJECT ||
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v->properties == NULL) {
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return NULL;
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}
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for (el=mprGetFirstProperty(v, MPR_ENUM_DATA);
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el;
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el=mprGetNextProperty(v, el, MPR_ENUM_DATA)) {
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const char *s = mprToString(el);
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if (s) {
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list = str_list_add(list, s);
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}
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}
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talloc_steal(mem_ctx, list);
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return list;
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}
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/*
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turn a MprVar object variable into a string list
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this assumes the object variable is an array of strings
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*/
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const char **mprToArray(TALLOC_CTX *mem_ctx, struct MprVar *v)
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{
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const char **list = NULL;
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struct MprVar *len;
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int length, i;
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len = mprGetProperty(v, "length", NULL);
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if (len == NULL) {
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return NULL;
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}
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length = mprToInt(len);
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for (i=0;i<length;i++) {
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char idx[16];
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struct MprVar *vs;
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mprItoa(i, idx, sizeof(idx));
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vs = mprGetProperty(v, idx, NULL);
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if (vs == NULL || vs->type != MPR_TYPE_STRING) {
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talloc_free(list);
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return NULL;
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}
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list = str_list_add(list, mprToString(vs));
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}
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talloc_steal(mem_ctx, list);
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return list;
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}
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/*
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turn a NTSTATUS into a MprVar object with lots of funky properties
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*/
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struct MprVar mprNTSTATUS(NTSTATUS status)
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{
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struct MprVar res;
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res = mprObject("ntstatus");
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mprSetVar(&res, "errstr", mprString(nt_errstr(status)));
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mprSetVar(&res, "v", mprCreateIntegerVar(NT_STATUS_V(status)));
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mprSetVar(&res, "is_ok", mprCreateBoolVar(NT_STATUS_IS_OK(status)));
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mprSetVar(&res, "is_err", mprCreateBoolVar(NT_STATUS_IS_ERR(status)));
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return res;
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}
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/*
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create a data-blob in a mpr variable
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*/
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struct MprVar mprDataBlob(DATA_BLOB blob)
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{
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struct MprVar res;
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struct datablob *pblob = talloc(mprMemCtx(), struct datablob);
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*pblob = data_blob_talloc(pblob, blob.data, blob.length);
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res = mprObject("DATA_BLOB");
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mprSetVar(&res, "size", mprCreateIntegerVar(blob.length));
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mprSetPtrChild(&res, "blob", pblob);
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return res;
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}
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/*
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return a data blob from a mpr var created using mprDataBlob
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*/
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struct datablob *mprToDataBlob(struct MprVar *v)
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{
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return talloc_get_type(mprGetPtr(v, "blob"), struct datablob);
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}
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/*
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turn a WERROR into a MprVar object with lots of funky properties
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*/
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struct MprVar mprWERROR(WERROR status)
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{
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struct MprVar res;
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res = mprObject("werror");
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mprSetVar(&res, "errstr", mprString(win_errstr(status)));
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mprSetVar(&res, "v", mprCreateIntegerVar(W_ERROR_V(status)));
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mprSetVar(&res, "is_ok", mprCreateBoolVar(W_ERROR_IS_OK(status)));
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mprSetVar(&res, "is_err", mprCreateBoolVar(!W_ERROR_IS_OK(status)));
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return res;
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}
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/*
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set a pointer in a existing MprVar
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*/
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void mprSetPtr(struct MprVar *v, const char *propname, const void *p)
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{
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mprSetVar(v, propname, mprCreatePtrVar(discard_const(p)));
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}
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/*
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set a pointer in a existing MprVar, freeing it when the property goes away
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*/
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void mprSetPtrChild(struct MprVar *v, const char *propname, const void *p)
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{
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mprSetVar(v, propname, mprCreatePtrVar(discard_const(p)));
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v = mprGetProperty(v, propname, NULL);
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v->allocatedData = 1;
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talloc_steal(mprMemCtx(), p);
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}
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/*
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get a pointer from a MprVar
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*/
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void *mprGetPtr(struct MprVar *v, const char *propname)
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{
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struct MprVar *val;
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val = mprGetProperty(v, propname, NULL);
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if (val == NULL) {
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return NULL;
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}
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if (val->type != MPR_TYPE_PTR) {
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return NULL;
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}
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return val->ptr;
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}
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/*
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set the return value then free the variable
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*/
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void mpr_Return(int eid, struct MprVar v)
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{
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ejsSetReturnValue(eid, v);
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mprDestroyVar(&v);
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}
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/*
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set the return value then free the variable
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*/
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void mpr_ReturnString(int eid, const char *s)
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{
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mpr_Return(eid, mprString(s));
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}
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/*
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set a C function in a variable
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*/
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void mprSetCFunction(struct MprVar *obj, const char *name, MprCFunction fn)
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{
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mprSetVar(obj, name, mprCreateCFunctionVar(fn, obj, MPR_VAR_SCRIPT_HANDLE));
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}
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/*
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set a string C function in a variable
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*/
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void mprSetStringCFunction(struct MprVar *obj, const char *name, MprStringCFunction fn)
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{
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mprSetVar(obj, name, mprCreateStringCFunctionVar(fn, obj, MPR_VAR_SCRIPT_HANDLE));
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}
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/*
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get a pointer in the current object
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*/
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void *mprGetThisPtr(int eid, const char *name)
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{
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struct MprVar *this = mprGetProperty(ejsGetLocalObject(eid), "this", 0);
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return mprGetPtr(this, name);
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}
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/*
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set a pointer as a child of the local object
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*/
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void mprSetThisPtr(int eid, const char *name, void *ptr)
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{
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struct MprVar *this = mprGetProperty(ejsGetLocalObject(eid), "this", 0);
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mprSetPtrChild(this, name, ptr);
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}
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/*
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used by object xxx_init() routines to allow for the caller
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to supply a pre-existing object to add properties to,
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or create a new object. This makes inheritance easy
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*/
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struct MprVar *mprInitObject(int eid, const char *name, int argc, struct MprVar **argv)
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{
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if (argc > 0 && mprVarIsObject(argv[0]->type)) {
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return argv[0];
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}
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mpr_Return(eid, mprObject(name));
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return ejsGetReturnValue(eid);
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}
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