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Implement Fast AGI (agi://) over TCP socket (Astricon talk idea)

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git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@3820 65c4cc65-6c06-0410-ace0-fbb531ad65f3
This commit is contained in:
Mark Spencer
2004-09-22 15:21:36 +00:00
parent aea667c7c8
commit 1597114535
2 changed files with 187 additions and 3 deletions
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96
res/res_agi.c
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@@ -3,9 +3,9 @@
*
* Asterisk Gateway Interface
*
* Copyright (C) 1999, Mark Spencer
* Copyright (C) 1999-2004, Digium, Inc.
*
* Mark Spencer <markster@linux-support.net>
* Mark Spencer <markster@digium.com>
*
* This program is free software, distributed under the terms of
* the GNU General Public License
@@ -25,6 +25,7 @@
#include <stdlib.h>
#include <signal.h>
#include <sys/time.h>
#include <sys/poll.h>
#include <stdio.h>
#include <fcntl.h>
#include <errno.h>
@@ -79,6 +80,90 @@ LOCAL_USER_DECL;
#define TONE_BLOCK_SIZE 200
/* Max time to connect to an AGI remote host */
#define MAX_AGI_CONNECT 2000
#define AGI_PORT 4573
static int launch_netscript(char *agiurl, char *argv[], int *fds, int *efd, int *opid)
{
int s;
int flags;
struct pollfd pfds[1];
char *host;
char *c; int port = AGI_PORT;
char *script;
struct sockaddr_in sin;
struct hostent *hp;
struct ast_hostent ahp;
ast_log(LOG_DEBUG, "Blah\n");
host = ast_strdupa(agiurl + 6);
if (!host)
return -1;
/* Strip off any script name */
if ((c = strchr(host, '/'))) {
*c = '\0';
c++;
script = c;
}
if ((c = strchr(host, ':'))) {
*c = '\0';
c++;
port = atoi(c + 1);
}
if (efd) {
ast_log(LOG_WARNING, "AGI URI's don't support Enhanced AGI yet\n");
return -1;
}
hp = ast_gethostbyname(host, &ahp);
if (!hp) {
ast_log(LOG_WARNING, "Unable to locate host '%s'\n", host);
return -1;
}
s = socket(AF_INET, SOCK_STREAM, 0);
if (s < 0) {
ast_log(LOG_WARNING, "Unable to create socket: %s\n", strerror(errno));
return -1;
}
flags = fcntl(s, F_GETFL);
if (flags < 0) {
ast_log(LOG_WARNING, "Fcntl(F_GETFL) failed: %s\n", strerror(errno));
close(s);
return -1;
}
if (fcntl(s, F_SETFL, flags | O_NONBLOCK) < 0) {
ast_log(LOG_WARNING, "Fnctl(F_SETFL) failed: %s\n", strerror(errno));
close(s);
return -1;
}
memset(&sin, 0, sizeof(sin));
sin.sin_family = AF_INET;
sin.sin_port = htons(port);
memcpy(&sin.sin_addr, hp->h_addr, sizeof(sin.sin_addr));
if (connect(s, (struct sockaddr *)&sin, sizeof(sin)) && (errno != EINPROGRESS)) {
ast_log(LOG_WARNING, "Connect failed with unexpected error: %s\n", strerror(errno));
close(s);
return -1;
}
pfds[0].fd = s;
pfds[0].events = POLLOUT;
if (poll(pfds, 1, MAX_AGI_CONNECT) != 1) {
ast_log(LOG_WARNING, "Connect to '%s' failed!\n", agiurl);
close(s);
return -1;
}
if (write(s, "agi_network: yes\n", strlen("agi_network: yes\n")) < 0) {
ast_log(LOG_WARNING, "Connect to '%s' failed: %s\n", agiurl, strerror(errno));
close(s);
return -1;
}
ast_log(LOG_DEBUG, "Wow, connected!\n");
fds[0] = s;
fds[1] = s;
*opid = -1;
return 0;
}
static int launch_script(char *script, char *argv[], int *fds, int *efd, int *opid)
{
char tmp[256];
@@ -88,6 +173,10 @@ static int launch_script(char *script, char *argv[], int *fds, int *efd, int *op
int audio[2];
int x;
int res;
if (!strncasecmp(script, "agi://", 6))
return launch_netscript(script, argv, fds, efd, opid);
if (script[0] != '/') {
snprintf(tmp, sizeof(tmp), "%s/%s", (char *)ast_config_AST_AGI_DIR, script);
script = tmp;
@@ -1338,7 +1427,8 @@ static int run_agi(struct ast_channel *chan, char *request, AGI *agi, int pid, i
if (!(readf = fdopen(agi->ctrl, "r"))) {
ast_log(LOG_WARNING, "Unable to fdopen file descriptor\n");
kill(pid, SIGHUP);
if (pid > -1)
kill(pid, SIGHUP);
close(agi->ctrl);
return -1;
}