summaryrefslogtreecommitdiff
path: root/source4/scripting/ejs/smbcalls.c
blob: 664bb74df32d3c6403435252fa3baa45a220aa10 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
/* 
   Unix SMB/CIFS implementation.

   provide hooks into smbd C calls from ejs scripts

   Copyright (C) Andrew Tridgell 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 "param/loadparm.h"
#include "lib/ldb/include/ldb.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, "null" },
		{ MPR_TYPE_BOOL, "boolean" },
		{ MPR_TYPE_CFUNCTION, "function" },
		{ MPR_TYPE_FLOAT, "float" },
		{ MPR_TYPE_INT, "int" },
		{ MPR_TYPE_INT64, "int64" },
		{ MPR_TYPE_OBJECT, "object" },
		{ MPR_TYPE_FUNCTION, "function" },
		{ MPR_TYPE_STRING, "string" },
		{ MPR_TYPE_STRING_CFUNCTION, "function" }
	};
	int i;
	const char *type = "unknown";

	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;
		}
	}

	ejsSetReturnString(eid, type);
	return 0;
}

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

/*
  return a list of defined services
*/
static int ejs_lpServices(MprVarHandle eid, int argc, char **argv)
{
	int i;
	const char **list = NULL;
	if (argc != 0) return -1;
	
	for (i=0;i<lp_numservices();i++) {
		list = str_list_add(list, lp_servicename(i));
	}
	talloc_steal(mprMemCtx(), list);
	ejs_returnlist(eid, "services", list);
	return 0;
}


/*
  allow access to loadparm variables from inside ejs scripts in swat
  
  can be called in 4 ways:

    v = lpGet("type:parm");             gets a parametric variable
    v = lpGet("share", "type:parm");    gets a parametric variable on a share
    v = lpGet("parm");                  gets a global variable
    v = lpGet("share", "parm");         gets a share variable

  the returned variable is a ejs object. It is an array object for lists.  
*/
static int ejs_lpGet(MprVarHandle eid, int argc, char **argv)
{
	struct parm_struct *parm = NULL;
	void *parm_ptr = NULL;
	int i;

	if (argc < 1) return -1;

	if (argc == 2) {
		/* its a share parameter */
		int snum = lp_servicenumber(argv[0]);
		if (snum == -1) {
			return -1;
		}
		if (strchr(argv[1], ':')) {
			/* its a parametric option on a share */
			const char *type = talloc_strndup(mprMemCtx(), 
							  argv[1], 
							  strcspn(argv[1], ":"));
			const char *option = strchr(argv[1], ':') + 1;
			const char *value;
			if (type == NULL || option == NULL) return -1;
			value = lp_get_parametric(snum, type, option);
			if (value == NULL) return -1;
			ejsSetReturnString(eid, value);
			return 0;
		}

		parm = lp_parm_struct(argv[1]);
		if (parm == NULL || parm->class == P_GLOBAL) {
			return -1;
		}
		parm_ptr = lp_parm_ptr(snum, parm);
	} else if (strchr(argv[0], ':')) {
		/* its a global parametric option */
		const char *type = talloc_strndup(mprMemCtx(), 
						  argv[0], strcspn(argv[0], ":"));
		const char *option = strchr(argv[0], ':') + 1;
		const char *value;
		if (type == NULL || option == NULL) return -1;
		value = lp_get_parametric(-1, type, option);
		if (value == NULL) return -1;
		ejsSetReturnString(eid, value);
		return 0;
	} else {
		/* its a global parameter */
		parm = lp_parm_struct(argv[0]);
		if (parm == NULL) return -1;
		parm_ptr = parm->ptr;
	}

	if (parm == NULL || parm_ptr == NULL) {
		return -1;
	}

	/* construct and return the right type of ejs object */
	switch (parm->type) {
	case P_STRING:
	case P_USTRING:
		ejsSetReturnString(eid, *(char **)parm_ptr);
		break;
	case P_BOOL:
		ejsSetReturnValue(eid, mprCreateBoolVar(*(BOOL *)parm_ptr));
		break;
	case P_INTEGER:
		ejsSetReturnValue(eid, mprCreateIntegerVar(*(int *)parm_ptr));
		break;
	case P_ENUM:
		for (i=0; parm->enum_list[i].name; i++) {
			if (*(int *)parm_ptr == parm->enum_list[i].value) {
				ejsSetReturnString(eid, parm->enum_list[i].name);
				return 0;
			}
		}
		return -1;	
	case P_LIST: 
		ejs_returnlist(eid, parm->label, *(const char ***)parm_ptr);
		break;
	case P_SEP:
		return -1;
	}
	return 0;
}


/*
  perform an ldb search, returning an array of results

  syntax:
     ldbSearch("dbfile", "expression");
     var attrs = new Array("attr1", "attr2", "attr3");
     ldbSearch("dbfile", "expression", attrs);
*/
static int ejs_ldbSearch(MprVarHandle eid, int argc, struct MprVar **argv)
{
	const char **attrs = NULL;
	const char *expression, *dbfile;
	TALLOC_CTX *tmp_ctx = talloc_new(mprMemCtx());
	struct ldb_context *ldb;
	int ret;
	struct ldb_message **res;

	/* validate arguments */
	if (argc < 2 || argc > 3 ||
	    argv[0]->type != MPR_TYPE_STRING) {
		ejsSetErrorMsg(eid, "ldbSearch invalid arguments");
		goto failed;
	}
	if (argc == 3 && argv[2]->type != MPR_TYPE_OBJECT) {
		ejsSetErrorMsg(eid, "ldbSearch attributes must be an object");
		goto failed;
	}

	dbfile     = mprToString(argv[0]);
	expression = mprToString(argv[1]);
	if (argc > 2) {
		attrs = mprToList(tmp_ctx, argv[2]);
	}
	if (dbfile == NULL || expression == NULL) {
		ejsSetErrorMsg(eid, "ldbSearch invalid arguments");
		goto failed;
	}

	ldb = ldb_wrap_connect(tmp_ctx, dbfile, 0, NULL);
	if (ldb == NULL) {
		ejsSetErrorMsg(eid, "ldbSearch failed to open %s", dbfile);
		goto failed;
	}

	ret = ldb_search(ldb, NULL, LDB_SCOPE_DEFAULT, expression, attrs, &res);
	if (ret == -1) {
		ejsSetErrorMsg(eid, "ldbSearch failed - %s", ldb_errstring(ldb));
		goto failed;
	}

	ejsSetReturnValue(eid, mprLdbArray(res, ret, "ldb_message"));

	talloc_free(tmp_ctx);
	return 0;

failed:
	talloc_free(tmp_ctx);
	return -1;
}


/*
  setup the C functions that be called from ejs
*/
void smb_setup_ejs_functions(void)
{
	ejsDefineStringCFunction(-1, "lpGet", ejs_lpGet, NULL, 0);
	ejsDefineStringCFunction(-1, "lpServices", ejs_lpServices, NULL, 0);
	ejsDefineCFunction(-1, "typeof", ejs_typeof, NULL, 0);
	ejsDefineCFunction(-1, "ldbSearch", ejs_ldbSearch, NULL, 0);
}