aboutsummaryrefslogtreecommitdiffstats
path: root/apps/app_privacy.c
blob: c8bd81179bea30a1c44141ab3004abeabb709b86 (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
/*
 * Asterisk -- An open source telephony toolkit.
 *
 * Copyright (C) 1999 - 2005, Digium, Inc.
 *
 * Mark Spencer <markster@digium.com>
 *
 * See http://www.asterisk.org for more information about
 * the Asterisk project. Please do not directly contact
 * any of the maintainers of this project for assistance;
 * the project provides a web site, mailing lists and IRC
 * channels for your use.
 *
 * This program is free software, distributed under the terms of
 * the GNU General Public License Version 2. See the LICENSE file
 * at the top of the source tree.
 */

/*! \file
 *
 * \brief Block all calls without Caller*ID, require phone # to be entered
 *
 * \author Mark Spencer <markster@digium.com>
 * 
 * \ingroup applications
 */

#include "asterisk.h"

ASTERISK_FILE_VERSION(__FILE__, "$Revision$")

#include "asterisk/lock.h"
#include "asterisk/file.h"
#include "asterisk/utils.h"
#include "asterisk/channel.h"
#include "asterisk/pbx.h"
#include "asterisk/module.h"
#include "asterisk/translate.h"
#include "asterisk/image.h"
#include "asterisk/callerid.h"
#include "asterisk/app.h"
#include "asterisk/config.h"

static char *app = "PrivacyManager";

static char *synopsis = "Require phone number to be entered, if no CallerID sent";

static char *descrip =
  "  PrivacyManager([maxretries][,minlength]): If no Caller*ID \n"
  "is sent, PrivacyManager answers the channel and asks the caller to\n"
  "enter their phone number. The caller is given 'maxretries' attempts to do so.\n"
  "The application does nothing if Caller*ID was received on the channel.\n"
  "   maxretries  default 3  -maximum number of attempts the caller is allowed \n"
  "               to input a callerid.\n"
  "   minlength   default 10 -minimum allowable digits in the input callerid number.\n"
  "The application sets the following channel variable upon completion: \n"
  "PRIVACYMGRSTATUS  The status of the privacy manager's attempt to collect \n"
  "                  a phone number from the user. A text string that is either:\n" 
  "          SUCCESS | FAILED \n"
;


static int privacy_exec (struct ast_channel *chan, void *data)
{
	int res=0;
	int retries;
	int maxretries = 3;
	int minlength = 10;
	int x = 0;
	char phone[30];
	char *parse = NULL;
	AST_DECLARE_APP_ARGS(args,
		AST_APP_ARG(maxretries);
		AST_APP_ARG(minlength);
		AST_APP_ARG(options);
	);

	if (!ast_strlen_zero(chan->cid.cid_num)) {
		ast_verb(3, "CallerID Present: Skipping\n");
	} else {
		/*Answer the channel if it is not already*/
		if (chan->_state != AST_STATE_UP) {
			if ((res = ast_answer(chan)))
				return -1;
		}

		if (!ast_strlen_zero(data)) {
			parse = ast_strdupa(data);
			
			AST_STANDARD_APP_ARGS(args, parse);

			if (args.maxretries) {
				if (sscanf(args.maxretries, "%30d", &x) == 1)
					maxretries = x;
				else
					ast_log(LOG_WARNING, "Invalid max retries argument\n");
			}
			if (args.minlength) {
				if (sscanf(args.minlength, "%30d", &x) == 1)
					minlength = x;
				else
					ast_log(LOG_WARNING, "Invalid min length argument\n");
			}

		}		

		/* Play unidentified call */
		res = ast_safe_sleep(chan, 1000);
		if (!res)
			res = ast_streamfile(chan, "privacy-unident", chan->language);
		if (!res)
			res = ast_waitstream(chan, "");

		/* Ask for 10 digit number, give 3 attempts */
		for (retries = 0; retries < maxretries; retries++) {
			if (!res)
				res = ast_streamfile(chan, "privacy-prompt", chan->language);
			if (!res)
				res = ast_waitstream(chan, "");

			if (!res ) 
				res = ast_readstring(chan, phone, sizeof(phone) - 1, /* digit timeout ms */ 3200, /* first digit timeout */ 5000, "#");

			if (res < 0)
				break;

			/* Make sure we get at least digits */
			if (strlen(phone) >= minlength ) 
				break;
			else {
				res = ast_streamfile(chan, "privacy-incorrect", chan->language);
				if (!res)
					res = ast_waitstream(chan, "");
			}
		}
		
		/* Got a number, play sounds and send them on their way */
		if ((retries < maxretries) && res >= 0 ) {
			res = ast_streamfile(chan, "privacy-thankyou", chan->language);
			if (!res)
				res = ast_waitstream(chan, "");

			ast_set_callerid (chan, phone, "Privacy Manager", NULL); 

			/* Clear the unavailable presence bit so if it came in on PRI
			 * the caller id will now be passed out to other channels
			 */
			chan->cid.cid_pres &= (AST_PRES_UNAVAILABLE ^ 0xFF);

			ast_verb(3, "Changed Caller*ID to %s, callerpres to %d\n",phone,chan->cid.cid_pres);

			pbx_builtin_setvar_helper(chan, "PRIVACYMGRSTATUS", "SUCCESS");
		} else {
			pbx_builtin_setvar_helper(chan, "PRIVACYMGRSTATUS", "FAILED");
		}
	}

	return 0;
}

static int unload_module(void)
{
	return ast_unregister_application (app);
}

static int load_module(void)
{
	return ast_register_application(app, privacy_exec, synopsis, descrip);
}

AST_MODULE_INFO_STANDARD(ASTERISK_GPL_KEY, "Require phone number to be entered, if no CallerID sent");