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path: root/source4/scripting/ejs/smbcalls.c
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/* 
   Unix SMB/CIFS implementation.

   provide hooks into smbd C calls from ejs scripts

   Copyright (C) Andrew Tridgell 2005
   Copyright (C) Tim Potter 2005
   
   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 2 of the License, or
   (at your option) any later version.
   
   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.
   
   You should have received a copy of the GNU General Public License
   along with this program; if not, write to the Free Software
   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/

#include "includes.h"
#include "lib/ejs/ejs.h"
#include "auth/auth.h"
#include "scripting/ejs/smbcalls.h"

/*
  return the type of a variable
*/
static int ejs_typeof(MprVarHandle eid, int argc, struct MprVar **argv)
{
	const struct {
		MprType type;
		const char *name;
	} types[] = {
		{ MPR_TYPE_UNDEFINED,        "undefined" },
		{ MPR_TYPE_NULL,             "object" },
		{ MPR_TYPE_BOOL,             "boolean" },
		{ MPR_TYPE_CFUNCTION,        "function" },
		{ MPR_TYPE_FLOAT,            "number" },
		{ MPR_TYPE_INT,              "number" },
		{ MPR_TYPE_INT64,            "number" },
		{ MPR_TYPE_OBJECT,           "object" },
		{ MPR_TYPE_FUNCTION,         "function" },
		{ MPR_TYPE_STRING,           "string" },
		{ MPR_TYPE_STRING_CFUNCTION, "function" },
		{ MPR_TYPE_PTR,              "C pointer" }
	};
	int i;
	const char *type = NULL;

	if (argc != 1) return -1;
	
	for (i=0;i<ARRAY_SIZE(types);i++) {
		if (argv[0]->type == types[i].type) {
			type = types[i].name;
			break;
		}
	}
	if (type == NULL) return -1;

	mpr_ReturnString(eid, type);
	return 0;
}

/*
  setup a return of a string list
*/
void ejs_returnlist(int eid, const char *name, const char **list)
{
	mpr_Return(eid, mprList(name, list));
}

static int ejs_systemAuth(TALLOC_CTX *tmp_ctx, struct MprVar *auth, const char *username, const char *password, const char *domain, const char *remote_host)
{
	struct auth_usersupplied_info *user_info = NULL;
	struct auth_serversupplied_info *server_info = NULL;
	struct auth_context *auth_context;
	const char *auth_unix[] = { "unix", NULL };
	NTSTATUS nt_status;
	DATA_BLOB pw_blob;

	/*
	  darn, we need some way to get the right event_context here
	*/
	nt_status = auth_context_create(tmp_ctx, auth_unix, &auth_context, NULL);
	if (!NT_STATUS_IS_OK(nt_status)) {
		mprSetPropertyValue(auth, "result", mprCreateBoolVar(False));
		mprSetPropertyValue(auth, "report", mprCreateStringVar("Auth System Failure", 1));
		goto done;
	}

	pw_blob = data_blob(password, strlen(password)+1),
	make_user_info(tmp_ctx, username, username,
				domain, domain,
				remote_host, remote_host,
				NULL, NULL,
				NULL, NULL,
				&pw_blob, False,
				USER_INFO_CASE_INSENSITIVE_USERNAME |
				USER_INFO_DONT_CHECK_UNIX_ACCOUNT,
				&user_info);
	nt_status = auth_check_password(auth_context, tmp_ctx, user_info, &server_info);
	if (!NT_STATUS_IS_OK(nt_status)) {
		mprSetPropertyValue(auth, "result", mprCreateBoolVar(False));
		mprSetPropertyValue(auth, "report", mprCreateStringVar("Login Failed", 1));
		goto done;
	}

	mprSetPropertyValue(auth, "result", mprCreateBoolVar(server_info->authenticated));
	mprSetPropertyValue(auth, "username", mprCreateStringVar(server_info->account_name, 1));
	mprSetPropertyValue(auth, "domain", mprCreateStringVar(server_info->domain_name, 1));

done:
	return 0;
}

/*
  perform user authentication, returning an array of results

  syntax:
    var authinfo = new Object();
    authinfo.username = myname;
    authinfo.password = mypass;
    authinfo.domain = mydom;
    authinfo.rhost = request['REMOTE_HOST'];
    auth = userAuth(authinfo);
*/
static int ejs_userAuth(MprVarHandle eid, int argc, struct MprVar **argv)
{
	TALLOC_CTX *tmp_ctx;
	const char *username;
	const char *password;
	const char *domain;
	const char *remote_host;
	struct MprVar auth;

	if (argc != 1 || argv[0]->type != MPR_TYPE_OBJECT) {
		ejsSetErrorMsg(eid, "userAuth invalid arguments, this function requires an object.");
		return -1;
	}

	username = mprToString(mprGetProperty(argv[0], "username", NULL));
	password = mprToString(mprGetProperty(argv[0], "password", NULL));
	domain = mprToString(mprGetProperty(argv[0], "domain", NULL));
	remote_host = mprToString(mprGetProperty(argv[0], "rhost", NULL));

 	tmp_ctx = talloc_new(mprMemCtx());	
	auth = mprCreateObjVar("auth", MPR_DEFAULT_HASH_SIZE);

	if (domain && strcmp("System User", domain) == 0) {

		ejs_systemAuth(tmp_ctx, &auth, username, password, domain, remote_host);
	}  else {

		mprSetPropertyValue(&auth, "result", mprCreateBoolVar(False));
		mprSetPropertyValue(&auth, "report", mprCreateStringVar("Unknown Domain", 1));
	}

	mpr_Return(eid, auth);
	talloc_free(tmp_ctx);
	return 0;
}

static int ejs_domain_list(MprVarHandle eid, int argc, char **argv)
{
	struct MprVar list;

	if (argc != 0) {
		ejsSetErrorMsg(eid, "domList invalid arguments");
		return -1;
	}

	list = mprCreateObjVar("list", MPR_DEFAULT_HASH_SIZE);
	mprSetVar(&list, "0", mprCreateStringVar("System User", 1));

	mpr_Return(eid, list);

	return 0;
}


/*
  setup C functions that be called from ejs
*/
void smb_setup_ejs_functions(void)
{
	smb_setup_ejs_config();
	smb_setup_ejs_ldb();
	smb_setup_ejs_nbt();
	smb_setup_ejs_cli();
	smb_setup_ejs_rpc();

	ejsDefineCFunction(-1, "typeof", ejs_typeof, NULL, MPR_VAR_SCRIPT_HANDLE);
	ejsDefineStringCFunction(-1, "getDomainList", ejs_domain_list, NULL, MPR_VAR_SCRIPT_HANDLE);
	ejsDefineCFunction(-1, "userAuth", ejs_userAuth, NULL, MPR_VAR_SCRIPT_HANDLE);
}

/*
  setup constants that can be used from ejs
*/
void smb_setup_ejs_constants(int eid)
{
	smb_setup_ejs_rpc_constants(eid);
}