manager.c

/*
 * Asterisk -- A telephony toolkit for Linux.
 *
 * Channel Management and more
 * 
 * Copyright (C) 1999, Mark Spencer
 *
 * Mark Spencer <markster@linux-support.net>
 *
 * This program is free software, distributed under the terms of
 * the GNU General Public License
 */

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/time.h>
#include <sys/types.h>
#include <netdb.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <netinet/tcp.h>
#include <arpa/inet.h>
#include <signal.h>
#include <errno.h>
#include <unistd.h>
#include <sys/poll.h>
#include <asterisk/channel.h>
#include <asterisk/file.h>
#include <asterisk/manager.h>
#include <asterisk/config.h>
#include <asterisk/lock.h>
#include <asterisk/logger.h>
#include <asterisk/options.h>
#include <asterisk/cli.h>
#include <asterisk/app.h>
#include <asterisk/pbx.h>
#include <asterisk/md5.h>
#include <asterisk/acl.h>
#include <asterisk/utils.h>

struct fast_originate_helper
{
	char tech[256];
	char data[256];
	int timeout;
	char app[256];
	char appdata[256];
	char callerid[256];
	char variable[256];
	char account[256];
	char context[256];
	char exten[256];
	int priority;
};

static int enabled = 0;
static int portno = DEFAULT_MANAGER_PORT;
static int asock = -1;
static pthread_t t;
AST_MUTEX_DEFINE_STATIC(sessionlock);
static int block_sockets = 0;

static struct permalias {
	int num;
	char *label;
} perms[] = {
	{ EVENT_FLAG_SYSTEM, "system" },
	{ EVENT_FLAG_CALL, "call" },
	{ EVENT_FLAG_LOG, "log" },
	{ EVENT_FLAG_VERBOSE, "verbose" },
	{ EVENT_FLAG_COMMAND, "command" },
	{ EVENT_FLAG_AGENT, "agent" },
	{ EVENT_FLAG_USER, "user" },
	{ -1, "all" },
};

static struct mansession *sessions = NULL;
static struct manager_action *first_action = NULL;
AST_MUTEX_DEFINE_STATIC(actionlock);

int ast_carefulwrite(int fd, char *s, int len, int timeoutms) 
{
	/* Try to write string, but wait no more than ms milliseconds
	   before timing out */
	int res=0;
	struct pollfd fds[1];
	while(len) {
		res = write(fd, s, len);
		if ((res < 0) && (errno != EAGAIN)) {
			return -1;
		}
		if (res < 0) res = 0;
		len -= res;
		s += res;
		fds[0].fd = fd;
		fds[0].events = POLLOUT;
		/* Wait until writable again */
		res = poll(fds, 1, timeoutms);
		if (res < 1)
			return -1;
	}
	return res;
}

static char *complete_show_mancmd(char *line, char *word, int pos, int state)
{
	struct manager_action *cur = first_action;
	int which = 0;

	ast_mutex_lock(&actionlock);
	while (cur) { /* Walk the list of actions */
		if (!strncasecmp(word, cur->action, strlen(word))) {
			if (++which > state) {
				char *ret = strdup(cur->action);
				ast_mutex_unlock(&actionlock);
				return ret;
			}
		}
		cur = cur->next;
	}
	ast_mutex_unlock(&actionlock);
	return NULL;
}

static int handle_showmancmd(int fd, int argc, char *argv[])
{
	struct manager_action *cur = first_action;
	int num;

	if (argc != 4)
		return RESULT_SHOWUSAGE;
	ast_mutex_lock(&actionlock);
	while (cur) { /* Walk the list of actions */
		for (num = 3; num < argc; num++) {
			if (!strcasecmp(cur->action, argv[num])) {
				ast_cli(fd, "Action: %s\nSynopsis: %s\n%s\n", cur->action, cur->synopsis, cur->description ? cur->description : "");
			}
		}
		cur = cur->next;
	}

	ast_mutex_unlock(&actionlock);
	return RESULT_SUCCESS;
}

static int handle_showmancmds(int fd, int argc, char *argv[])
{
	struct manager_action *cur = first_action;
	char *format = "  %-15.15s  %-45.45s\n";

	ast_mutex_lock(&actionlock);
	ast_cli(fd, format, "Action", "Synopsis");
	while (cur) { /* Walk the list of actions */
		ast_cli(fd, format, cur->action, cur->synopsis);
		cur = cur->next;
	}

	ast_mutex_unlock(&actionlock);
	return RESULT_SUCCESS;
}

static int handle_showmanconn(int fd, int argc, char *argv[])
{
	struct mansession *s;
	char iabuf[80];
	char *format = "  %-15.15s  %-15.15s\n";
	ast_mutex_lock(&sessionlock);
	s = sessions;
	ast_cli(fd, format, "Username", "IP Address");
	while (s) {
		ast_cli(fd, format,s->username, ast_inet_ntoa(iabuf, sizeof(iabuf), s->sin.sin_addr));
		s = s->next;
	}

	ast_mutex_unlock(&sessionlock);
	return RESULT_SUCCESS;
}

static char showmancmd_help[] = 
"Usage: show manager command <actionname>\n"
"	Shows the detailed description for a specific manager command.\n";

static char showmancmds_help[] = 
"Usage: show manager commands\n"
"	Prints a listing of all the available manager commands.\n";

static char showmanconn_help[] = 
"Usage: show manager connected\n"
"	Prints a listing of the users that are connected to the\n"
"manager interface.\n";

static struct ast_cli_entry show_mancmd_cli =
	{ { "show", "manager", "command", NULL },
	handle_showmancmd, "Show manager command", showmancmd_help, complete_show_mancmd };

static struct ast_cli_entry show_mancmds_cli =
	{ { "show", "manager", "commands", NULL },
	handle_showmancmds, "Show manager commands", showmancmds_help };

static struct ast_cli_entry show_manconn_cli =
	{ { "show", "manager", "connected", NULL },
	handle_showmanconn, "Show connected manager users", showmanconn_help };

static void destroy_session(struct mansession *s)
{
	struct mansession *cur, *prev = NULL;
	ast_mutex_lock(&sessionlock);
	cur = sessions;
	while(cur) {
		if (cur == s)
			break;
		prev = cur;
		cur = cur->next;
	}
	if (cur) {
		if (prev)
			prev->next = cur->next;
		else
			sessions = cur->next;
		if (s->fd > -1)
			close(s->fd);
		ast_mutex_destroy(&s->lock);
		free(s);
	} else
		ast_log(LOG_WARNING, "Trying to delete non-existant session %p?\n", s);
	ast_mutex_unlock(&sessionlock);
	
}

char *astman_get_header(struct message *m, char *var)
{
	char cmp[80];
	int x;
	snprintf(cmp, sizeof(cmp), "%s: ", var);
	for (x=0;x<m->hdrcount;x++)
		if (!strncasecmp(cmp, m->headers[x], strlen(cmp)))
			return m->headers[x] + strlen(cmp);
	return "";
}

void astman_send_error(struct mansession *s, struct message *m, char *error)
{
	char *id = astman_get_header(m,"ActionID");
	ast_mutex_lock(&s->lock);
	ast_cli(s->fd, "Response: Error\r\n");
	if (id && !ast_strlen_zero(id))
		ast_cli(s->fd, "ActionID: %s\r\n",id);
	ast_cli(s->fd, "Message: %s\r\n\r\n", error);
	ast_mutex_unlock(&s->lock);
}

void astman_send_response(struct mansession *s, struct message *m, char *resp, char *msg)
{
	char *id = astman_get_header(m,"ActionID");
	ast_mutex_lock(&s->lock);
	ast_cli(s->fd, "Response: %s\r\n", resp);
	if (id && !ast_strlen_zero(id))
		ast_cli(s->fd, "ActionID: %s\r\n",id);
	if (msg)
		ast_cli(s->fd, "Message: %s\r\n\r\n", msg);
	else
		ast_cli(s->fd, "\r\n");
	ast_mutex_unlock(&s->lock);
}

void astman_send_ack(struct mansession *s, struct message *m, char *msg)
{
	astman_send_response(s, m, "Success", msg);
}

static int get_perm(char *instr)
{
	char tmp[256];
	char *c;
	int x;
	int ret = 0;
	char *stringp=NULL;
	if (!instr)
		return 0;
	strncpy(tmp, instr, sizeof(tmp) - 1);
	stringp=tmp;
	c = strsep(&stringp, ",");
	while(c) {
		for (x=0;x<sizeof(perms) / sizeof(perms[0]);x++) {
			if (!strcasecmp(perms[x].label, c)) 
				ret |= perms[x].num;
		}
		c = strsep(&stringp, ",");
	}
	return ret;
}

static int set_eventmask(struct mansession *s, char *eventmask)
{
	if (!eventmask)
		return -1;
	if (!strcasecmp(eventmask, "on") || ast_true(eventmask)) {
		ast_mutex_lock(&s->lock);
		s->send_events = 1;
		ast_mutex_unlock(&s->lock);
		return 1;
	} else if (!strcasecmp(eventmask, "off") || ast_false(eventmask)) {
		ast_mutex_lock(&s->lock);
		s->send_events = 0;
		ast_mutex_unlock(&s->lock);
		return 0;
	}
	return -1;
}

static int authenticate(struct mansession *s, struct message *m)
{
	struct ast_config *cfg;
	char iabuf[80];
	char *cat;
	char *user = astman_get_header(m, "Username");
	char *pass = astman_get_header(m, "Secret");
	char *authtype = astman_get_header(m, "AuthType");
	char *key = astman_get_header(m, "Key");
	char *events = astman_get_header(m, "Events");
	
	cfg = ast_load("manager.conf");
	if (!cfg)
		return -1;
	cat = ast_category_browse(cfg, NULL);
	while(cat) {
		if (strcasecmp(cat, "general")) {
			/* This is a user */
			if (!strcasecmp(cat, user)) {
				struct ast_variable *v;
				struct ast_ha *ha = NULL;
				char *password = NULL;
				v = ast_variable_browse(cfg, cat);
				while (v) {
					if (!strcasecmp(v->name, "secret")) {
						password = v->value;
					} else if (!strcasecmp(v->name, "permit") ||
						   !strcasecmp(v->name, "deny")) {
							ha = ast_append_ha(v->name, v->value, ha);
					}						
					v = v->next;
				}
				if (ha && !ast_apply_ha(ha, &(s->sin))) {
					ast_log(LOG_NOTICE, "%s failed to pass IP ACL as '%s'\n", ast_inet_ntoa(iabuf, sizeof(iabuf), s->sin.sin_addr), user);
					ast_free_ha(ha);
					ast_destroy(cfg);
					return -1;
				} else if (ha)
					ast_free_ha(ha);
				if (!strcasecmp(authtype, "MD5")) {
					if (key && !ast_strlen_zero(key) && s->challenge) {
						int x;
						int len=0;
						char md5key[256] = "";
						struct MD5Context md5;
						unsigned char digest[16];
						MD5Init(&md5);
						MD5Update(&md5, s->challenge, strlen(s->challenge));
						MD5Update(&md5, password, strlen(password));
						MD5Final(digest, &md5);
						for (x=0;x<16;x++)
							len += sprintf(md5key + len, "%2.2x", digest[x]);
						if (!strcmp(md5key, key))
							break;
						else {
							ast_destroy(cfg);
							return -1;
						}
					}
				} else if (password && !strcasecmp(password, pass)) {
					break;
				} else {
					ast_log(LOG_NOTICE, "%s failed to authenticate as '%s'\n", ast_inet_ntoa(iabuf, sizeof(iabuf), s->sin.sin_addr), user);
					ast_destroy(cfg);
					return -1;
				}	
			}
		}
		cat = ast_category_browse(cfg, cat);
	}
	if (cat) {
		strncpy(s->username, cat, sizeof(s->username) - 1);
		s->readperm = get_perm(ast_variable_retrieve(cfg, cat, "read"));
		s->writeperm = get_perm(ast_variable_retrieve(cfg, cat, "write"));
		ast_destroy(cfg);
		if (events)
			set_eventmask(s, events);
		return 0;
	}
	ast_log(LOG_NOTICE, "%s tried to authenticate with non-existant user '%s'\n", ast_inet_ntoa(iabuf, sizeof(iabuf), s->sin.sin_addr), user);
	ast_destroy(cfg);
	return -1;
}

static char mandescr_ping[] = 
"Description: A 'Ping' action will ellicit a 'Pong' response.  Used to keep the "
"  manager connection open.\n"
"Variables: NONE\n";

static int action_ping(struct mansession *s, struct message *m)
{
	astman_send_response(s, m, "Pong", NULL);
	return 0;
}

static char mandescr_listcommands[] = 
"Description: Returns the action name and synopsis for every\n"
"  action that is available to the user\n"
"Variables: NONE\n";

static int action_listcommands(struct mansession *s, struct message *m)
{
	struct manager_action *cur = first_action;
	char idText[256] = "";
	char *id = astman_get_header(m,"ActionID");

	if (id && !ast_strlen_zero(id))
		snprintf(idText,256,"ActionID: %s\r\n",id);
	ast_cli(s->fd, "Response: Success\r\n%s", idText);
	ast_mutex_lock(&actionlock);
	while (cur) { /* Walk the list of actions */
		if ((s->writeperm & cur->authority) == cur->authority)
			ast_cli(s->fd, "%s: %s\r\n", cur->action, cur->synopsis);
		cur = cur->next;
	}
	ast_mutex_unlock(&actionlock);
	ast_cli(s->fd, "\r\n");

	return 0;
}

static char mandescr_events[] = 
"Description: Enable/Disable sending of events to this manager\n"
"  client.\n"
"Variables:\n"
"	EventMask: 'on' if events should be sent, 'off' if not\n";

static int action_events(struct mansession *s, struct message *m)
{
	char *mask = astman_get_header(m, "EventMask");
	int res;

	res = set_eventmask(s, mask);
	if (res > 0)
		astman_send_response(s, m, "Events On", NULL);
	else if (res == 0)
		astman_send_response(s, m, "Events Off", NULL);
	else
		astman_send_response(s, m, "EventMask parse error", NULL);
	return 0;
}

static char mandescr_logoff[] = 
"Description: Logoff this manager session\n"
"Variables: NONE\n";

static int action_logoff(struct mansession *s, struct message *m)
{
	astman_send_response(s, m, "Goodbye", "Thanks for all the fish.");
	return -1;
}

static char mandescr_hangup[] = 
"Description: Hangup a channel\n"
"Variables: \n"
"	Channel: The channel name to be hungup\n";

static int action_hangup(struct mansession *s, struct message *m)
{
	struct ast_channel *c = NULL;
	char *name = astman_get_header(m, "Channel");
	if (ast_strlen_zero(name)) {
		astman_send_error(s, m, "No channel specified");
		return 0;
	}
	c = ast_channel_walk_locked(NULL);
	while(c) {
		if (!strcasecmp(c->name, name)) {
			break;
		}
		ast_mutex_unlock(&c->lock);
		c = ast_channel_walk_locked(c);
	}
	if (!c) {
		astman_send_error(s, m, "No such channel");
		return 0;
	}
	ast_softhangup(c, AST_SOFTHANGUP_EXPLICIT);
	ast_mutex_unlock(&c->lock);
	astman_send_ack(s, m, "Channel Hungup");
	return 0;
}

static int action_setvar(struct mansession *s, struct message *m)
{
        struct ast_channel *c = NULL;
        char *name = astman_get_header(m, "Channel");
        char *varname = astman_get_header(m, "Variable");
        char *varval = astman_get_header(m, "Value");
	
	if (!strlen(name)) {
		astman_send_error(s, m, "No channel specified");
		return 0;
	}
	if (!strlen(varname)) {
		astman_send_error(s, m, "No variable specified");
		return 0;
	}

	c = ast_channel_walk_locked(NULL);
	while(c) {
		if (!strcasecmp(c->name, name)) {
			break;
		}
		ast_mutex_unlock(&c->lock);
		c = ast_channel_walk_locked(c);
	}
	if (!c) {
		astman_send_error(s, m, "No such channel");
		return 0;
	}
	
	pbx_builtin_setvar_helper(c,varname,varval);
	  
	ast_mutex_unlock(&c->lock);
	astman_send_ack(s, m, "Variable Set");
	return 0;
}

static int action_getvar(struct mansession *s, struct message *m)
{
        struct ast_channel *c = NULL;
        char *name = astman_get_header(m, "Channel");
        char *varname = astman_get_header(m, "Variable");
	char *varval;

	if (!strlen(name)) {
		astman_send_error(s, m, "No channel specified");
		return 0;
	}
	if (!strlen(varname)) {
		astman_send_error(s, m, "No variable specified");
		return 0;
	}

	c = ast_channel_walk_locked(NULL);
	while(c) {
		if (!strcasecmp(c->name, name)) {
			break;
		}
		ast_mutex_unlock(&c->lock);
		c = ast_channel_walk_locked(c);
	}
	if (!c) {
		astman_send_error(s, m, "No such channel");
		return 0;
	}
	
	varval=pbx_builtin_getvar_helper(c,varname);
	  
	ast_mutex_unlock(&c->lock);
	ast_cli(s->fd, "Response: Success\r\n"
		"%s: %s",varname,varval);

	return 0;
}


static int action_status(struct mansession *s, struct message *m)
{
	char *id = astman_get_header(m,"ActionID");
    	char *name = astman_get_header(m,"Channel");
	char idText[256] = "";
	struct ast_channel *c;
	char bridge[256];
	astman_send_ack(s, m, "Channel status will follow");
	c = ast_channel_walk_locked(NULL);
        if (id && !ast_strlen_zero(id))
                snprintf(idText,256,"ActionID: %s\r\n",id);
	if (name && !ast_strlen_zero(name)) {
		while (c) {
			if (!strcasecmp(c->name, name)) {
				break;
			}
			ast_mutex_unlock(&c->lock);
			c = ast_channel_walk_locked(c);
		}
		if (!c) {
			astman_send_error(s, m, "No such channel");
			return 0;
		}
	}
	while(c) {
		if (c->bridge)
			snprintf(bridge, sizeof(bridge), "Link: %s\r\n", c->bridge->name);
		else
			strcpy(bridge, "");
		if (c->pbx) {
			ast_cli(s->fd,
			"Event: Status\r\n"
			"Channel: %s\r\n"
			"CallerID: %s\r\n"
			"Account: %s\r\n"
			"State: %s\r\n"
			"Context: %s\r\n"
			"Extension: %s\r\n"
			"Priority: %d\r\n"
			"%s"
			"Uniqueid: %s\r\n"
			"%s"
			"\r\n",
			c->name, c->callerid ? c->callerid : "<unknown>", 
			c->accountcode,
			ast_state2str(c->_state), c->context,
			c->exten, c->priority, bridge, c->uniqueid, idText);
		} else {
			ast_cli(s->fd,
			"Event: Status\r\n"
			"Channel: %s\r\n"
			"CallerID: %s\r\n"
			"Account: %s\r\n"
			"State: %s\r\n"
			"%s"
			"Uniqueid: %s\r\n"
			"%s"
			"\r\n",
			c->name, c->callerid ? c->callerid : "<unknown>", 
			c->accountcode,
			ast_state2str(c->_state), bridge, c->uniqueid, idText);
		}
		ast_mutex_unlock(&c->lock);
		if (name && !ast_strlen_zero(name)) {
			break;
		}
		c = ast_channel_walk_locked(c);
	}
	ast_cli(s->fd,
	"Event: StatusComplete\r\n"
	"%s"
	"\r\n",idText);
	return 0;
}

static int action_redirect(struct mansession *s, struct message *m)
{
	char *name = astman_get_header(m, "Channel");
	char *name2 = astman_get_header(m, "ExtraChannel");
	char *exten = astman_get_header(m, "Exten");
	char *context = astman_get_header(m, "Context");
	char *priority = astman_get_header(m, "Priority");
	struct ast_channel *chan, *chan2 = NULL;
	int pi = 0;
	int res;
	if (!name || ast_strlen_zero(name)) {
		astman_send_error(s, m, "Channel not specified");
		return 0;
	}
	if (!ast_strlen_zero(priority) && (sscanf(priority, "%d", &pi) != 1)) {
		astman_send_error(s, m, "Invalid priority\n");
		return 0;
	}
	chan = ast_get_channel_by_name_locked(name);
	if (!chan) {
		astman_send_error(s, m, "Channel not existant");
		return 0;
	}
	if (!ast_strlen_zero(name2))
		chan2 = ast_get_channel_by_name_locked(name2);
	res = ast_async_goto(chan, context, exten, pi);
	if (!res) {
		if (!ast_strlen_zero(name2)) {
			if (chan2)
				res = ast_async_goto(chan2, context, exten, pi);
			else
				res = -1;
			if (!res)
				astman_send_ack(s, m, "Dual Redirect successful");
			else
				astman_send_error(s, m, "Secondary redirect failed");
		} else
			astman_send_ack(s, m, "Redirect successful");
	} else
		astman_send_error(s, m, "Redirect failed");
	if (chan)
		ast_mutex_unlock(&chan->lock);
	if (chan2)
		ast_mutex_unlock(&chan2->lock);
	return 0;
}

static int action_command(struct mansession *s, struct message *m)
{
	char *cmd = astman_get_header(m, "Command");
	char *id = astman_get_header(m, "ActionID");
	ast_mutex_lock(&s->lock);
	s->blocking = 1;
	ast_mutex_unlock(&s->lock);
	ast_cli(s->fd, "Response: Follows\r\n");
	if (id && !ast_strlen_zero(id))
		ast_cli(s->fd, "ActionID: %s\r\n", id);
	/* FIXME: Wedge a ActionID response in here, waiting for later changes */
	ast_cli_command(s->fd, cmd);
	ast_cli(s->fd, "--END COMMAND--\r\n\r\n");
	ast_mutex_lock(&s->lock);
	s->blocking = 0;
	ast_mutex_unlock(&s->lock);
	return 0;
}

static void *fast_originate(void *data)
{
	struct fast_originate_helper *in = data;
	int res;
	int reason = 0;
	if (!ast_strlen_zero(in->app)) {
		res = ast_pbx_outgoing_app(in->tech, AST_FORMAT_SLINEAR, in->data, in->timeout, in->app, in->appdata, &reason, 1, !ast_strlen_zero(in->callerid) ? in->callerid : NULL, in->variable, in->account);
	} else {
		res = ast_pbx_outgoing_exten(in->tech, AST_FORMAT_SLINEAR, in->data, in->timeout, in->context, in->exten, in->priority, &reason, 1, !ast_strlen_zero(in->callerid) ? in->callerid : NULL, in->variable, in->account);
	}   
	free(in);
	return NULL;
}

static char mandescr_originate[] = 
"Description: Generates an outgoing call to a Extension/Context/Priority or\n"
"  Application/Data\n"
"Variables: (Names marked with * are required)\n"
"	*Channel: Channel name to call\n"
"	Exten: Extension to use (requires 'Context' and 'Priority')\n"
"	Context: Context to use (requires 'Exten' and 'Priority')\n"
"	Priority: Priority to use (requires 'Exten' and 'Context')\n"
"	Application: Application to use\n"
"	Data: Data to use (requires 'Application')\n"
"	Timeout: How long to wait for call to be answered (in ms)\n"
"	CallerID: Caller ID to be set on the outgoing channel\n"
"	Variable: Channel variable to set (VAR1=value1|VAR2=value2)\n"
"	Account: Account code\n"
"	Async: Set to 'true' for fast origination\n";

static int action_originate(struct mansession *s, struct message *m)
{
	char *name = astman_get_header(m, "Channel");
	char *exten = astman_get_header(m, "Exten");
	char *context = astman_get_header(m, "Context");
	char *priority = astman_get_header(m, "Priority");
	char *timeout = astman_get_header(m, "Timeout");
	char *callerid = astman_get_header(m, "CallerID");
    	char *variable = astman_get_header(m, "Variable");
    	char *account = astman_get_header(m, "Account");
	char *app = astman_get_header(m, "Application");
	char *appdata = astman_get_header(m, "Data");
	char *async = astman_get_header(m, "Async");
	char *tech, *data;
	int pi = 0;
	int res;
	int to = 30000;
	int reason = 0;
	char tmp[256];
	pthread_t th;
	pthread_attr_t attr;
	if (!name) {
		astman_send_error(s, m, "Channel not specified");
		return 0;
	}
	if (!ast_strlen_zero(priority) && (sscanf(priority, "%d", &pi) != 1)) {
		astman_send_error(s, m, "Invalid priority\n");
		return 0;
	}
	if (!ast_strlen_zero(timeout) && (sscanf(timeout, "%d", &to) != 1)) {
		astman_send_error(s, m, "Invalid timeout\n");
		return 0;
	}
	strncpy(tmp, name, sizeof(tmp) - 1);
	tech = tmp;
	data = strchr(tmp, '/');
	if (!data) {
		astman_send_error(s, m, "Invalid channel\n");
		return 0;
	}
	*data = '\0';
	data++;
	if (ast_true(async))
	{
		struct fast_originate_helper *fast = malloc(sizeof(struct fast_originate_helper));
		if (!fast)
		{
			res = -1;
		}
		else
		{
			memset(fast, 0, sizeof(struct fast_originate_helper));
			strncpy(fast->tech, tech, sizeof(fast->tech) - 1);
   			strncpy(fast->data, data, sizeof(fast->data) - 1);
			strncpy(fast->app, app, sizeof(fast->app) - 1);
			strncpy(fast->appdata, appdata, sizeof(fast->appdata) - 1);
			strncpy(fast->callerid, callerid, sizeof(fast->callerid) - 1);
			strncpy(fast->variable, variable, sizeof(fast->variable) - 1);
			strncpy(fast->account, account, sizeof(fast->account) - 1);
			strncpy(fast->context, context, sizeof(fast->context) - 1);
			strncpy(fast->exten, exten, sizeof(fast->exten) - 1);
			fast->timeout = to;
			fast->priority = pi;
			pthread_attr_init(&attr);
			pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED);
			if (pthread_create(&th, &attr, fast_originate, fast))
			{
				res = -1;
			}
			else
			{
				res = 0;
			}
		}
	} else if (!ast_strlen_zero(app)) {
        	res = ast_pbx_outgoing_app(tech, AST_FORMAT_SLINEAR, data, to, app, appdata, &reason, 0, !ast_strlen_zero(callerid) ? callerid : NULL, variable, account);
    	} else {
		if (exten && context && pi)
	        	res = ast_pbx_outgoing_exten(tech, AST_FORMAT_SLINEAR, data, to, context, exten, pi, &reason, 0, !ast_strlen_zero(callerid) ? callerid : NULL, variable, account);
		else {
			astman_send_error(s, m, "Originate with 'Exten' requires 'Context' and 'Priority'");
			return 0;
		}
	}   
	if (!res)
		astman_send_ack(s, m, "Originate successfully queued");
	else
		astman_send_error(s, m, "Originate failed");
	return 0;
}

static int action_mailboxstatus(struct mansession *s, struct message *m)
{
	char *mailbox = astman_get_header(m, "Mailbox");
	char *id = astman_get_header(m,"ActionID");
	char idText[256] = "";
	if (!mailbox || ast_strlen_zero(mailbox)) {
		astman_send_error(s, m, "Mailbox not specified");
		return 0;
	}
        if (id && !ast_strlen_zero(id))
                snprintf(idText,256,"ActionID: %s\r\n",id);
	ast_cli(s->fd, "Response: Success\r\n"
				   "%s"
				   "Message: Mailbox Status\r\n"
				   "Mailbox: %s\r\n"
		 		   "Waiting: %d\r\n\r\n", idText, mailbox, ast_app_has_voicemail(mailbox));
	return 0;
}

static int action_mailboxcount(struct mansession *s, struct message *m)
{
	char *mailbox = astman_get_header(m, "Mailbox");
	char *id = astman_get_header(m,"ActionID");
	char idText[256] = "";
	int newmsgs = 0, oldmsgs = 0;
	if (!mailbox || ast_strlen_zero(mailbox)) {
		astman_send_error(s, m, "Mailbox not specified");
		return 0;
	}
	ast_app_messagecount(mailbox, &newmsgs, &oldmsgs);
        if (id && !ast_strlen_zero(id)) {
                snprintf(idText,256,"ActionID: %s\r\n",id);
        }
	ast_cli(s->fd, "Response: Success\r\n"
				   "%s"
				   "Message: Mailbox Message Count\r\n"
				   "Mailbox: %s\r\n"
		 		   "NewMessages: %d\r\n"
				   "OldMessages: %d\r\n" 
				   "\r\n",
				    idText,mailbox, newmsgs, oldmsgs);
	return 0;
}

static int action_extensionstate(struct mansession *s, struct message *m)
{
	char *exten = astman_get_header(m, "Exten");
	char *context = astman_get_header(m, "Context");
	char *id = astman_get_header(m,"ActionID");
	char idText[256] = "";
	char hint[256] = "";
	int status;
	if (!exten || ast_strlen_zero(exten)) {
		astman_send_error(s, m, "Extension not specified");
		return 0;
	}
	if (!context || ast_strlen_zero(context))
		context = "default";
	status = ast_extension_state(NULL, context, exten);
	ast_get_hint(hint, sizeof(hint) - 1, NULL, context, exten);
        if (id && !ast_strlen_zero(id)) {
                snprintf(idText,256,"ActionID: %s\r\n",id);
        }
	ast_cli(s->fd, "Response: Success\r\n"
			           "%s"
				   "Message: Extension Status\r\n"
				   "Exten: %s\r\n"
				   "Context: %s\r\n"
				   "Hint: %s\r\n"
		 		   "Status: %d\r\n\r\n",
				   idText,exten, context, hint, status);
	return 0;
}

static int action_timeout(struct mansession *s, struct message *m)
{
	struct ast_channel *c = NULL;
	char *name = astman_get_header(m, "Channel");
	int timeout = atoi(astman_get_header(m, "Timeout"));
	if (ast_strlen_zero(name)) {
		astman_send_error(s, m, "No channel specified");
		return 0;
	}
	if (!timeout) {
		astman_send_error(s, m, "No timeout specified");
		return 0;
	}
	c = ast_channel_walk_locked(NULL);
	while(c) {
		if (!strcasecmp(c->name, name)) {
			break;
		}
		ast_mutex_unlock(&c->lock);
		c = ast_channel_walk_locked(c);
	}
	if (!c) {
		astman_send_error(s, m, "No such channel");
		return 0;
	}
	ast_channel_setwhentohangup(c, timeout);
	ast_mutex_unlock(&c->lock);
	astman_send_ack(s, m, "Timeout Set");
	return 0;
}

static int process_message(struct mansession *s, struct message *m)
{
	char action[80];
	struct manager_action *tmp = first_action;
	char *id = astman_get_header(m,"ActionID");
	char idText[256] = "";
	char iabuf[80];

	strncpy(action, astman_get_header(m, "Action"), sizeof(action));
	ast_log( LOG_DEBUG, "Manager received command '%s'\n", action );

	if (ast_strlen_zero(action)) {
		astman_send_error(s, m, "Missing action in request");
		return 0;
	}
        if (id && !ast_strlen_zero(id)) {
                snprintf(idText,256,"ActionID: %s\r\n",id);
        }
	if (!s->authenticated) {
		if (!strcasecmp(action, "Challenge")) {
			char *authtype;
			authtype = astman_get_header(m, "AuthType");
			if (!strcasecmp(authtype, "MD5")) {
				if (!s->challenge || ast_strlen_zero(s->challenge)) {
					ast_mutex_lock(&s->lock);
					snprintf(s->challenge, sizeof(s->challenge), "%d", rand());
					ast_mutex_unlock(&s->lock);
				}
				ast_cli(s->fd, "Response: Success\r\n"
						"%s"
						"Challenge: %s\r\n\r\n",
						idText,s->challenge);
				return 0;
			} else {
				astman_send_error(s, m, "Must specify AuthType");
				return 0;
			}
		} else if (!strcasecmp(action, "Login")) {
			if (authenticate(s, m)) {
				sleep(1);
				astman_send_error(s, m, "Authentication failed");
				return -1;
			} else {
				s->authenticated = 1;
				if (option_verbose > 1) 
					ast_verbose(VERBOSE_PREFIX_2 "Manager '%s' logged on from %s\n", s->username, ast_inet_ntoa(iabuf, sizeof(iabuf), s->sin.sin_addr));
				ast_log(LOG_EVENT, "Manager '%s' logged on from %s\n", s->username, ast_inet_ntoa(iabuf, sizeof(iabuf), s->sin.sin_addr));
				astman_send_ack(s, m, "Authentication accepted");
			}
		} else if (!strcasecmp(action, "Logoff")) {
			astman_send_ack(s, m, "See ya");
			return -1;
		} else
			astman_send_error(s, m, "Authentication Required");
	} else {
		while( tmp ) { 		
			if (!strcasecmp(action, tmp->action)) {
				if ((s->writeperm & tmp->authority) == tmp->authority) {
					if (tmp->func(s, m))
						return -1;
				} else {
					astman_send_error(s, m, "Permission denied");
				}
				return 0;