internal.h File Reference

Internal API's for res_ari. More...

#include "asterisk/http.h"
#include "asterisk/json.h"
#include "asterisk/stringfields.h"

Include dependency graph for internal.h:

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Data Structures
struct	ast_ari_conf
	All configuration options for ARI. More...
struct	ast_ari_conf_general
	Global configuration options for ARI. More...
struct	ast_ari_conf_user
	Per-user configuration options. More...

Functions
void	ari_handle_websocket (struct ast_websocket_server *ws_server, struct ast_tcptls_session_instance *ser, const char *uri, enum ast_http_method method, struct ast_variable *get_params, struct ast_variable *headers)
	Wrapper for invoking the websocket code for an incoming connection. More...
int	ast_ari_cli_register (void)
	Register CLI commands for ARI. More...
void	ast_ari_cli_unregister (void)
	Unregister CLI commands for ARI. More...
#define	ARI_AUTH_REALM_LEN   80
#define	ARI_PASSWORD_LEN   256
	User's password mx length. More...
enum	ast_ari_password_format { ARI_PASSWORD_FORMAT_PLAIN, ARI_PASSWORD_FORMAT_CRYPT }
	Password format. More...
int	ast_ari_config_init (void)
	Initialize the ARI configuration. More...
int	ast_ari_config_reload (void)
	Reload the ARI configuration. More...
void	ast_ari_config_destroy (void)
	Destroy the ARI configuration. More...
struct ast_ari_conf *	ast_ari_config_get (void)
	Get the current ARI configuration. More...
struct ast_ari_conf_user *	ast_ari_config_validate_user (const char *username, const char *password)
	Validated a user's credentials. More...

Detailed Description

Internal API's for res_ari.

Author

David M. Lee, II dlee@.nosp@m.digi.nosp@m.um.co.nosp@m.m

Definition in file internal.h.

Macro Definition Documentation

ARI_AUTH_REALM_LEN

#define ARI_AUTH_REALM_LEN   80

Max length for auth_realm field

Definition at line 62 of file internal.h.

Referenced by ast_ari_config_init().

ARI_PASSWORD_LEN

#define ARI_PASSWORD_LEN   256

User's password mx length.

If 256 seems like a lot, a crypt SHA-512 has over 106 characters.

Definition at line 93 of file internal.h.

Referenced by ast_ari_config_init().

Enumeration Type Documentation

ast_ari_password_format

enum ast_ari_password_format

Password format.

Enumerator
ARI_PASSWORD_FORMAT_PLAIN	Plaintext password.
ARI_PASSWORD_FORMAT_CRYPT	crypt(3) password

Definition at line 81 of file internal.h.

                             {
   /*! \brief Plaintext password */
   ARI_PASSWORD_FORMAT_PLAIN,
   /*! crypt(3) password */
   ARI_PASSWORD_FORMAT_CRYPT,
};

Function Documentation

ari_handle_websocket()

void ari_handle_websocket	(	struct ast_websocket_server *	ws_server,
		struct ast_tcptls_session_instance *	ser,
		const char *	uri,
		enum ast_http_method	method,
		struct ast_variable *	get_params,
		struct ast_variable *	headers
	)

Wrapper for invoking the websocket code for an incoming connection.

Parameters

ws_server	WebSocket server to invoke.
ser	HTTP session.
uri	Requested URI.
method	Requested HTTP method.
get_params	Parsed query parameters.
headers	Parsed HTTP headers.

Definition at line 191 of file ari_websockets.c.

References ast_websocket_uri_cb(), and ast_http_uri::data.

Referenced by ast_ari_invoke().

{
   struct ast_http_uri fake_urih = {
      .data = ws_server,
   };
   ast_websocket_uri_cb(ser, &fake_urih, uri, method, get_params,
      headers);
}

ast_ari_cli_register()

int ast_ari_cli_register

(

void

)

Register CLI commands for ARI.

Returns

0 on success.

Non-zero on error.

Definition at line 434 of file res/ari/cli.c.

References ARRAY_LEN, and ast_cli_register_multiple.

Referenced by load_module().

                               {
   return ast_cli_register_multiple(cli_ari, ARRAY_LEN(cli_ari));
}

ast_ari_cli_unregister()

void ast_ari_cli_unregister

(

void

)

Unregister CLI commands for ARI.

Definition at line 438 of file res/ari/cli.c.

References ARRAY_LEN, and ast_cli_unregister_multiple().

Referenced by unload_module().

                                  {
   ast_cli_unregister_multiple(cli_ari, ARRAY_LEN(cli_ari));
}

ast_ari_config_destroy()

void ast_ari_config_destroy

(

void

)

Destroy the ARI configuration.

Definition at line 383 of file res/ari/config.c.

References aco_info_destroy(), and ao2_global_obj_release.

Referenced by unload_module().

{
   aco_info_destroy(&cfg_info);
   ao2_global_obj_release(confs);
}

ast_ari_config_get()

struct ast_ari_conf* ast_ari_config_get

(

void

)

Get the current ARI configuration.

This is an immutable object, so don't modify it. It is AO2 managed, so ao2_cleanup() when you're done with it.

Returns

ARI configuration object.

NULL on error.

Definition at line 227 of file res/ari/config.c.

References ao2_global_obj_ref, ast_log, CONF_FILENAME, and LOG_ERROR.

Referenced by ari_show(), ari_show_user(), ari_show_users(), ast_ari_callback(), ast_ari_config_validate_user(), ast_ari_json_format(), ast_ari_websocket_session_create(), complete_ari_user(), is_enabled(), origin_allowed(), and process_config().

{
   struct ast_ari_conf *res = ao2_global_obj_ref(confs);
   if (!res) {
      ast_log(LOG_ERROR,
         "Error obtaining config from " CONF_FILENAME "\n");
   }
   return res;
}

ast_ari_config_init()

int ast_ari_config_init

(

void

)

Initialize the ARI configuration.

Definition at line 337 of file res/ari/config.c.

References ACO_EXACT, aco_info_destroy(), aco_info_init(), aco_option_register, aco_option_register_custom, ARI_AUTH_REALM_LEN, ARI_PASSWORD_LEN, AST_DEFAULT_WEBSOCKET_WRITE_TIMEOUT_STR, channelvars_handler(), enabled, encoding_format_handler(), FLDSET, NULL, OPT_BOOL_T, OPT_CHAR_ARRAY_T, OPT_INT_T, OPT_NOOP_T, OPT_STRINGFIELD_T, PARSE_IN_RANGE, password, password_format_handler(), process_config(), ast_ari_conf_user::read_only, and STRFLDSET.

Referenced by load_module().

{
   if (aco_info_init(&cfg_info)) {
      aco_info_destroy(&cfg_info);
      return -1;
   }

   /* ARI general category options */
   aco_option_register(&cfg_info, "enabled", ACO_EXACT, general_options,
      "yes", OPT_BOOL_T, 1,
      FLDSET(struct ast_ari_conf_general, enabled));
   aco_option_register_custom(&cfg_info, "pretty", ACO_EXACT,
      general_options, "no",  encoding_format_handler, 0);
   aco_option_register(&cfg_info, "auth_realm", ACO_EXACT, general_options,
      "Asterisk REST Interface", OPT_CHAR_ARRAY_T, 0,
      FLDSET(struct ast_ari_conf_general, auth_realm),
      ARI_AUTH_REALM_LEN);
   aco_option_register(&cfg_info, "allowed_origins", ACO_EXACT, general_options,
      "", OPT_STRINGFIELD_T, 0,
      STRFLDSET(struct ast_ari_conf_general, allowed_origins));
   aco_option_register(&cfg_info, "websocket_write_timeout", ACO_EXACT, general_options,
      AST_DEFAULT_WEBSOCKET_WRITE_TIMEOUT_STR, OPT_INT_T, PARSE_IN_RANGE,
      FLDSET(struct ast_ari_conf_general, write_timeout), 1, INT_MAX);
   aco_option_register_custom(&cfg_info, "channelvars", ACO_EXACT, general_options,
      "", channelvars_handler, 0);

   /* ARI type=user category options */
   aco_option_register(&cfg_info, "type", ACO_EXACT, global_user, NULL,
      OPT_NOOP_T, 0, 0);
   aco_option_register(&cfg_info, "read_only", ACO_EXACT, global_user,
      "no", OPT_BOOL_T, 1,
      FLDSET(struct ast_ari_conf_user, read_only));
   aco_option_register(&cfg_info, "password", ACO_EXACT, global_user,
      "", OPT_CHAR_ARRAY_T, 0,
      FLDSET(struct ast_ari_conf_user, password), ARI_PASSWORD_LEN);
   aco_option_register_custom(&cfg_info, "password_format", ACO_EXACT,
      global_user, "plain",  password_format_handler, 0);

   return process_config(0);
}

ast_ari_config_reload()

int ast_ari_config_reload

(

void

)

Reload the ARI configuration.

Definition at line 378 of file res/ari/config.c.

References process_config().

Referenced by reload_module().

{
   return process_config(1);
}

ast_ari_config_validate_user()

struct ast_ari_conf_user* ast_ari_config_validate_user	(	const char *	username,
		const char *	password
	)

Validated a user's credentials.

Parameters

username	Name of the user.
password	User's password.

Returns

User object.

NULL if username or password is invalid.

Definition at line 237 of file res/ari/config.c.

References ao2_cleanup, ao2_find, ao2_ref, ARI_PASSWORD_FORMAT_CRYPT, ARI_PASSWORD_FORMAT_PLAIN, ast_ari_config_get(), ast_crypt_validate(), ast_log, ast_strlen_zero, LOG_WARNING, NULL, OBJ_SEARCH_KEY, RAII_VAR, and user.

Referenced by authenticate_api_key(), and authenticate_user().

{
   RAII_VAR(struct ast_ari_conf *, conf, NULL, ao2_cleanup);
   RAII_VAR(struct ast_ari_conf_user *, user, NULL, ao2_cleanup);
   int is_valid = 0;

   conf = ast_ari_config_get();
   if (!conf) {
      return NULL;
   }

   user = ao2_find(conf->users, username, OBJ_SEARCH_KEY);
   if (!user) {
      return NULL;
   }

   if (ast_strlen_zero(user->password)) {
      ast_log(LOG_WARNING,
         "User '%s' missing password; authentication failed\n",
         user->username);
      return NULL;
   }

   switch (user->password_format) {
   case ARI_PASSWORD_FORMAT_PLAIN:
      is_valid = strcmp(password, user->password) == 0;
      break;
   case ARI_PASSWORD_FORMAT_CRYPT:
      is_valid = ast_crypt_validate(password, user->password);
      break;
   }

   if (!is_valid) {
      return NULL;
   }

   ao2_ref(user, +1);
   return user;
}