diff options
Diffstat (limited to 'res/res_pjsip_xpidf_body_generator.c')
| -rw-r--r-- | res/res_pjsip_xpidf_body_generator.c | 177 |
1 files changed, 177 insertions, 0 deletions
diff --git a/res/res_pjsip_xpidf_body_generator.c b/res/res_pjsip_xpidf_body_generator.c new file mode 100644 index 000000000..b68c9bba6 --- /dev/null +++ b/res/res_pjsip_xpidf_body_generator.c @@ -0,0 +1,177 @@ +/* + * asterisk -- An open source telephony toolkit. + * + * Copyright (C) 2014, Digium, Inc. + * + * Mark Michelson <mmichelson@digium.com> + * + * See http://www.asterisk.org for more information about + * the Asterisk project. Please do not directly contact + * any of the maintainers of this project for assistance; + * the project provides a web site, mailing lists and IRC + * channels for your use. + * + * This program is free software, distributed under the terms of + * the GNU General Public License Version 2. See the LICENSE file + * at the top of the source tree. + */ + +/*** MODULEINFO + <depend>pjproject</depend> + <depend>res_pjsip</depend> + <depend>res_pjsip_pubsub</depend> + <depend>res_pjsip_exten_state</depend> + <support_level>core</support_level> + ***/ + +#include "asterisk.h" + +#include <pjsip.h> +#include <pjsip_simple.h> +#include <pjlib.h> + +#include "asterisk/module.h" +#include "asterisk/res_pjsip.h" +#include "asterisk/res_pjsip_pubsub.h" +#include "asterisk/res_pjsip_presence_xml.h" +#include "asterisk/res_pjsip_body_generator_types.h" + +static void *xpidf_allocate_body(void *data) +{ + struct ast_sip_exten_state_data *state_data = data; + pjxpidf_pres *pres; + pj_str_t name; + + pres = pjxpidf_create(state_data->pool, pj_cstr(&name, state_data->local)); + return pres; +} + +static int xpidf_generate_body_content(void *body, void *data) +{ + pjxpidf_pres *pres = body; + struct ast_sip_exten_state_data *state_data = data; + static pj_str_t STR_ADDR_PARAM = { ";user=ip", 8 }; + char *statestring = NULL, *pidfstate = NULL, *pidfnote = NULL; + pj_xml_attr *attr; + enum ast_sip_pidf_state local_state; + pj_str_t uri; + char sanitized[PJSIP_MAX_URL_SIZE]; + pj_xml_node *atom; + pj_xml_node *address; + pj_xml_node *status; + pj_xml_node *msnsubstatus; + + ast_sip_presence_exten_state_to_str(state_data->exten_state, &statestring, + &pidfstate, &pidfnote, &local_state); + + ast_sip_presence_xml_find_node_attr(state_data->pool, pres, "atom", "id", + &atom, &attr); + pj_strdup2(state_data->pool, &attr->value, state_data->exten); + + ast_sip_presence_xml_find_node_attr(state_data->pool, atom, "address", + "uri", &address, &attr); + + ast_sip_sanitize_xml(state_data->remote, sanitized, sizeof(sanitized)); + + uri.ptr = (char*) pj_pool_alloc(state_data->pool, + strlen(sanitized) + STR_ADDR_PARAM.slen); + pj_strcpy2( &uri, sanitized); + pj_strcat( &uri, &STR_ADDR_PARAM); + pj_strdup(state_data->pool, &attr->value, &uri); + + ast_sip_presence_xml_create_attr(state_data->pool, address, "priority", "0.80000"); + + ast_sip_presence_xml_find_node_attr(state_data->pool, address, + "status", "status", &status, &attr); + pj_strdup2(state_data->pool, &attr->value, + (local_state == NOTIFY_OPEN) ? "open" : + (local_state == NOTIFY_INUSE) ? "inuse" : "closed"); + + ast_sip_presence_xml_find_node_attr(state_data->pool, address, + "msnsubstatus", "substatus", &msnsubstatus, &attr); + pj_strdup2(state_data->pool, &attr->value, + (local_state == NOTIFY_OPEN) ? "online" : + (local_state == NOTIFY_INUSE) ? "onthephone" : "offline"); + + return 0; +} + +#define MAX_STRING_GROWTHS 3 + +static void xpidf_to_string(void *body, struct ast_str **str) +{ + pjxpidf_pres *pres = body; + int growths = 0; + int size; + + do { + + size = pjxpidf_print(pres, ast_str_buffer(*str), ast_str_size(*str)); + if (size < 0) { + ast_str_make_space(str, ast_str_size(*str) * 2); + ++growths; + return; + } + } while (size < 0 && growths < MAX_STRING_GROWTHS); + + if (size < 0) { + ast_log(LOG_WARNING, "XPIDF body text too large\n"); + return; + } + + *(ast_str_buffer(*str) + size) = '\0'; + ast_str_update(*str); +} + +static struct ast_sip_pubsub_body_generator xpidf_body_generator = { + .type = "application", + .subtype = "xpidf+xml", + .allocate_body = xpidf_allocate_body, + .generate_body_content = xpidf_generate_body_content, + .to_string = xpidf_to_string, + /* No need for a destroy_body callback since we use a pool */ +}; + +static struct ast_sip_pubsub_body_generator cpim_pidf_body_generator = { + .type = "application", + .subtype = "cpim-pidf+xml", + .allocate_body = xpidf_allocate_body, + .generate_body_content = xpidf_generate_body_content, + .to_string = xpidf_to_string, + /* No need for a destroy_body callback since we use a pool */ +}; + +static void unregister_all(void) +{ + ast_sip_pubsub_unregister_body_generator(&cpim_pidf_body_generator); + ast_sip_pubsub_unregister_body_generator(&xpidf_body_generator); +} + +static int load_module(void) +{ + if (ast_sip_pubsub_register_body_generator(&xpidf_body_generator)) { + goto fail; + } + + if (ast_sip_pubsub_register_body_generator(&cpim_pidf_body_generator)) { + goto fail; + } + + return AST_MODULE_LOAD_SUCCESS; + +fail: + unregister_all(); + return AST_MODULE_LOAD_DECLINE; +} + +static int unload_module(void) +{ + unregister_all(); + return 0; +} + +AST_MODULE_INFO(ASTERISK_GPL_KEY, AST_MODFLAG_LOAD_ORDER, "PJSIP Extension State PIDF Provider", + .load = load_module, + .unload = unload_module, + .load_pri = AST_MODPRI_CHANNEL_DEPEND, +); |