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/**
* @file httpd.c Webserver UI module
*
* Copyright (C) 2010 - 2015 Alfred E. Heggestad
*/
#include <re.h>
#include <baresip.h>
/**
* @defgroup httpd httpd
*
* HTTP Server module for the User-Interface
*
*
* Open your favourite web browser and point it to http://127.0.0.1:8000/
* Example URLs:
*
\verbatim
http://127.0.0.1:8000?h -- Print the Help menu
http://127.0.0.1:8000?d1234@target.com -- Make an outgoing call
\endverbatim
*
* The following options can be configured:
*
\verbatim
http_listen 0.0.0.0:8000 # IP-address and port to listen on
\endverbatim
*/
enum {HTTP_PORT = 8000};
static struct http_sock *httpsock;
static int handle_input(struct re_printf *pf, const struct pl *pl)
{
if (!pl)
return 0;
if (pl->l > 1 && pl->p[0] == '/')
return ui_input_long_command(pf, pl);
else
return ui_input_pl(pf, pl);
}
static int html_print_head(struct re_printf *pf, void *unused)
{
(void)unused;
return re_hprintf(pf,
"<html>\n"
"<head>\n"
"<title>Baresip v" BARESIP_VERSION "</title>\n"
"</head>\n");
}
static int html_print_cmd(struct re_printf *pf, const struct pl *prm)
{
struct pl params;
if (!pf || !prm)
return EINVAL;
if (pl_isset(prm)) {
params.p = prm->p + 1;
params.l = prm->l - 1;
}
else {
params.p = "h";
params.l = 1;
}
return re_hprintf(pf,
"%H"
"<body>\n"
"<pre>\n"
"%H"
"</pre>\n"
"</body>\n"
"</html>\n",
html_print_head, NULL,
handle_input, ¶ms);
}
static int html_print_raw(struct re_printf *pf, const struct pl *prm)
{
struct pl params;
if (!pf || !prm)
return EINVAL;
if (pl_isset(prm)) {
params.p = prm->p + 1;
params.l = prm->l - 1;
}
else {
params.p = "h";
params.l = 1;
}
return re_hprintf(pf,
"%H",
handle_input, ¶ms);
}
static void http_req_handler(struct http_conn *conn,
const struct http_msg *msg, void *arg)
{
struct mbuf *mb;
int err;
char *buf = NULL;
struct pl nprm;
(void)arg;
mb = mbuf_alloc(8192);
if (!mb)
return;
err = re_sdprintf(&buf, "%H", uri_header_unescape, &msg->prm);
if (err)
goto error;
pl_set_str(&nprm, buf);
if (0 == pl_strcasecmp(&msg->path, "/")) {
err = mbuf_printf(mb, "%H", html_print_cmd, &nprm);
if (!err) {
http_reply(conn, 200, "OK",
"Content-Type: text/html;charset=UTF-8\r\n"
"Content-Length: %zu\r\n"
"Access-Control-Allow-Origin: *\r\n"
"\r\n"
"%b",
mb->end,
mb->buf, mb->end);
}
}
else if (0 == pl_strcasecmp(&msg->path, "/raw/")) {
err = mbuf_printf(mb, "%H", html_print_raw, &nprm);
if (!err) {
http_reply(conn, 200, "OK",
"Content-Type: text/plain;charset=UTF-8\r\n"
"Content-Length: %zu\r\n"
"Access-Control-Allow-Origin: *\r\n"
"\r\n"
"%b",
mb->end,
mb->buf, mb->end);
}
}
else {
goto error;
}
mem_deref(mb);
mem_deref(buf);
return;
error:
mem_deref(mb);
mem_deref(buf);
http_ereply(conn, 404, "Not Found");
}
static int output_handler(const char *str)
{
(void)str;
return 0;
}
static struct ui ui_http = {
.name = "http",
.outputh = output_handler
};
static int module_init(void)
{
struct sa laddr;
int err;
if (conf_get_sa(conf_cur(), "http_listen", &laddr)) {
sa_set_str(&laddr, "0.0.0.0", HTTP_PORT);
}
err = http_listen(&httpsock, &laddr, http_req_handler, NULL);
if (err)
return err;
ui_register(baresip_uis(), &ui_http);
info("httpd: listening on %J\n", &laddr);
return 0;
}
static int module_close(void)
{
ui_unregister(&ui_http);
httpsock = mem_deref(httpsock);
return 0;
}
EXPORT_SYM const struct mod_export DECL_EXPORTS(httpd) = {
"httpd",
"application",
module_init,
module_close,
};
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