app_page.c File Reference

page() - Paging application More...

#include "asterisk.h"
#include "asterisk/channel.h"
#include "asterisk/pbx.h"
#include "asterisk/module.h"
#include "asterisk/file.h"
#include "asterisk/app.h"
#include "asterisk/chanvars.h"
#include "asterisk/utils.h"
#include "asterisk/devicestate.h"
#include "asterisk/dial.h"

Include dependency graph for app_page.c:

Go to the source code of this file.

Enumerations
enum	{   PAGE_DUPLEX = (1 << 0), PAGE_QUIET = (1 << 1), PAGE_RECORD = (1 << 2), PAGE_SKIP = (1 << 3),   PAGE_IGNORE_FORWARDS = (1 << 4) }
Functions
static void	__reg_module (void)
static void	__unreg_module (void)
static int	load_module (void)
static int	page_exec (struct ast_channel *chan, void *data)
static int	unload_module (void)
Variables
static struct ast_module_info	__mod_info = { .name = AST_MODULE, .flags = AST_MODFLAG_DEFAULT , .description = "Page Multiple Phones" , .key = "This paragraph is copyright (c) 2006 by Digium, Inc. \In order for your module to load, it must return this \key via a function called \"key\". Any code which \includes this paragraph must be licensed under the GNU \General Public License version 2 or later (at your \option). In addition to Digium's general reservations \of rights, Digium expressly reserves the right to \allow other parties to license this paragraph under \different terms. Any use of Digium, Inc. trademarks or \logos (including \"Asterisk\" or \"Digium\") without \express written permission of Digium, Inc. is prohibited.\n" , .buildopt_sum = "0901e4e500243c855563a2d78b0c03e4" , .load = load_module, .unload = unload_module, }
static const char *	app_page = "Page"
static struct ast_module_info *	ast_module_info = &__mod_info
enum { ... }	page_opt_flags
static struct ast_app_option	page_opts [128] = { [ 'd' ] = { .flag = PAGE_DUPLEX }, [ 'q' ] = { .flag = PAGE_QUIET }, [ 'r' ] = { .flag = PAGE_RECORD }, [ 's' ] = { .flag = PAGE_SKIP }, [ 'i' ] = { .flag = PAGE_IGNORE_FORWARDS },}

---

Detailed Description

page() - Paging application

Author:

Mark Spencer <markster@digium.com>

Definition in file app_page.c.

---

Enumeration Type Documentation

anonymous enum

Enumerator:

PAGE_DUPLEX
PAGE_QUIET
PAGE_RECORD
PAGE_SKIP
PAGE_IGNORE_FORWARDS

Definition at line 104 of file app_page.c.

     {
   PAGE_DUPLEX = (1 << 0),
   PAGE_QUIET = (1 << 1),
   PAGE_RECORD = (1 << 2),
   PAGE_SKIP = (1 << 3),
   PAGE_IGNORE_FORWARDS = (1 << 4),
} page_opt_flags;

---

Function Documentation

static void __reg_module

(

void

)

[static]

Definition at line 282 of file app_page.c.

static void __unreg_module

(

void

)

[static]

Definition at line 282 of file app_page.c.

static int load_module

(

void

)

[static]

Definition at line 277 of file app_page.c.

References ast_register_application_xml, and page_exec().

{
   return ast_register_application_xml(app_page, page_exec);
}

static int page_exec	(	struct ast_channel *	chan,
		void *	data
	)			[static]

Definition at line 121 of file app_page.c.

References app, AST_APP_ARG, ast_app_parse_options(), ast_calloc, AST_CHANNEL_NAME, ast_copy_string(), AST_DECLARE_APP_ARGS, AST_DEVICE_NOT_INUSE, AST_DEVICE_UNKNOWN, ast_devstate2str(), ast_dial_append(), ast_dial_create(), ast_dial_destroy(), ast_dial_hangup(), ast_dial_join(), AST_DIAL_OPTION_ANSWER_EXEC, AST_DIAL_OPTION_DISABLE_CALL_FORWARDING, ast_dial_option_global_enable(), ast_dial_run(), ast_dial_set_global_timeout(), ast_log(), ast_random(), AST_STANDARD_APP_ARGS, ast_streamfile(), ast_strlen_zero(), ast_test_flag, ast_waitstream(), ast_channel::language, LOG_ERROR, LOG_WARNING, ast_channel::name, ast_dial::options, PAGE_DUPLEX, PAGE_IGNORE_FORWARDS, page_opts, PAGE_QUIET, PAGE_RECORD, PAGE_SKIP, parse(), pbx_exec(), pbx_findapp(), and ast_dial::timeout.

Referenced by load_module().

{
   char *tech, *resource, *tmp;
   char meetmeopts[88], originator[AST_CHANNEL_NAME], *opts[0];
   struct ast_flags flags = { 0 };
   unsigned int confid = ast_random();
   struct ast_app *app;
   int res = 0, pos = 0, i = 0;
   struct ast_dial **dial_list;
   unsigned int num_dials;
   int timeout = 0;
   char *parse;

   AST_DECLARE_APP_ARGS(args,
      AST_APP_ARG(devices);
      AST_APP_ARG(options);
      AST_APP_ARG(timeout);
   );

   if (ast_strlen_zero(data)) {
      ast_log(LOG_WARNING, "This application requires at least one argument (destination(s) to page)\n");
      return -1;
   }

   if (!(app = pbx_findapp("MeetMe"))) {
      ast_log(LOG_WARNING, "There is no MeetMe application available!\n");
      return -1;
   };

   parse = ast_strdupa(data);

   AST_STANDARD_APP_ARGS(args, parse);

   ast_copy_string(originator, chan->name, sizeof(originator));
   if ((tmp = strchr(originator, '-'))) {
      *tmp = '\0';
   }

   if (!ast_strlen_zero(args.options)) {
      ast_app_parse_options(page_opts, &flags, opts, args.options);
   }

   if (!ast_strlen_zero(args.timeout)) {
      timeout = atoi(args.timeout);
   }

   snprintf(meetmeopts, sizeof(meetmeopts), "MeetMe,%ud,%s%sqxdw(5)", confid, (ast_test_flag(&flags, PAGE_DUPLEX) ? "" : "m"),
      (ast_test_flag(&flags, PAGE_RECORD) ? "r" : "") );

   /* Count number of extensions in list by number of ampersands + 1 */
   num_dials = 1;
   tmp = args.devices;
   while (*tmp) {
      if (*tmp == '&') {
         num_dials++;
      }
      tmp++;
   }

   if (!(dial_list = ast_calloc(num_dials, sizeof(struct ast_dial *)))) {
      ast_log(LOG_ERROR, "Can't allocate %ld bytes for dial list\n", (long)(sizeof(struct ast_dial *) * num_dials));
      return -1;
   }

   /* Go through parsing/calling each device */
   while ((tech = strsep(&args.devices, "&"))) {
      int state = 0;
      struct ast_dial *dial = NULL;

      /* don't call the originating device */
      if (!strcasecmp(tech, originator))
         continue;

      /* If no resource is available, continue on */
      if (!(resource = strchr(tech, '/'))) {
         ast_log(LOG_WARNING, "Incomplete destination '%s' supplied.\n", tech);
         continue;
      }

      /* Ensure device is not in use if skip option is enabled */
      if (ast_test_flag(&flags, PAGE_SKIP)) {
         state = ast_device_state(tech);
         if (state == AST_DEVICE_UNKNOWN) {
            ast_log(LOG_WARNING, "Destination '%s' has device state '%s'. Paging anyway.\n", tech, ast_devstate2str(state));
         } else if (state != AST_DEVICE_NOT_INUSE) {
            ast_log(LOG_WARNING, "Destination '%s' has device state '%s'.\n", tech, ast_devstate2str(state));
            continue;
         }
      }

      *resource++ = '\0';

      /* Create a dialing structure */
      if (!(dial = ast_dial_create())) {
         ast_log(LOG_WARNING, "Failed to create dialing structure.\n");
         continue;
      }

      /* Append technology and resource */
      if (ast_dial_append(dial, tech, resource) == -1) {
         ast_log(LOG_ERROR, "Failed to add %s to outbound dial\n", tech);
         continue;
      }

      /* Set ANSWER_EXEC as global option */
      ast_dial_option_global_enable(dial, AST_DIAL_OPTION_ANSWER_EXEC, meetmeopts);

      if (timeout) {
         ast_dial_set_global_timeout(dial, timeout * 1000);
      }

      if (ast_test_flag(&flags, PAGE_IGNORE_FORWARDS)) {
         ast_dial_option_global_enable(dial, AST_DIAL_OPTION_DISABLE_CALL_FORWARDING, NULL);
      }

      /* Run this dial in async mode */
      ast_dial_run(dial, chan, 1);

      /* Put in our dialing array */
      dial_list[pos++] = dial;
   }

   if (!ast_test_flag(&flags, PAGE_QUIET)) {
      res = ast_streamfile(chan, "beep", chan->language);
      if (!res)
         res = ast_waitstream(chan, "");
   }

   if (!res) {
      snprintf(meetmeopts, sizeof(meetmeopts), "%ud,A%s%sqxd", confid, (ast_test_flag(&flags, PAGE_DUPLEX) ? "" : "t"), 
         (ast_test_flag(&flags, PAGE_RECORD) ? "r" : "") );
      pbx_exec(chan, app, meetmeopts);
   }

   /* Go through each dial attempt cancelling, joining, and destroying */
   for (i = 0; i < pos; i++) {
      struct ast_dial *dial = dial_list[i];

      /* We have to wait for the async thread to exit as it's possible Meetme won't throw them out immediately */
      ast_dial_join(dial);

      /* Hangup all channels */
      ast_dial_hangup(dial);

      /* Destroy dialing structure */
      ast_dial_destroy(dial);
   }

   return -1;
}

static int unload_module

(

void

)

[static]

Definition at line 272 of file app_page.c.

References ast_unregister_application().

{
   return ast_unregister_application(app_page);
}

---

Variable Documentation

struct ast_module_info __mod_info = { .name = AST_MODULE, .flags = AST_MODFLAG_DEFAULT , .description = "Page Multiple Phones" , .key = "This paragraph is copyright (c) 2006 by Digium, Inc. \In order for your module to load, it must return this \key via a function called \"key\". Any code which \includes this paragraph must be licensed under the GNU \General Public License version 2 or later (at your \option). In addition to Digium's general reservations \of rights, Digium expressly reserves the right to \allow other parties to license this paragraph under \different terms. Any use of Digium, Inc. trademarks or \logos (including \"Asterisk\" or \"Digium\") without \express written permission of Digium, Inc. is prohibited.\n" , .buildopt_sum = "0901e4e500243c855563a2d78b0c03e4" , .load = load_module, .unload = unload_module, } [static]

Definition at line 282 of file app_page.c.

const char* app_page = "Page" [static]

Definition at line 102 of file app_page.c.

struct ast_module_info* ast_module_info = &__mod_info [static]

Definition at line 282 of file app_page.c.

enum { ... } page_opt_flags

struct ast_app_option page_opts[128] = { [ 'd' ] = { .flag = PAGE_DUPLEX }, [ 'q' ] = { .flag = PAGE_QUIET }, [ 'r' ] = { .flag = PAGE_RECORD }, [ 's' ] = { .flag = PAGE_SKIP }, [ 'i' ] = { .flag = PAGE_IGNORE_FORWARDS },} [static]

Definition at line 118 of file app_page.c.

Referenced by page_exec().