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00028 #include "asterisk.h"
00029
00030 ASTERISK_FILE_VERSION(__FILE__, "$Revision: 287269 $")
00031
00032 #include <libical/ical.h>
00033 #include <ne_session.h>
00034 #include <ne_uri.h>
00035 #include <ne_request.h>
00036 #include <ne_auth.h>
00037 #include <ne_redirect.h>
00038 #include <libxml/xmlmemory.h>
00039 #include <libxml/parser.h>
00040
00041 #include "asterisk/module.h"
00042 #include "asterisk/calendar.h"
00043 #include "asterisk/lock.h"
00044 #include "asterisk/config.h"
00045 #include "asterisk/astobj2.h"
00046
00047 static void *caldav_load_calendar(void *data);
00048 static void *unref_caldav(void *obj);
00049 static int caldav_write_event(struct ast_calendar_event *event);
00050
00051 static struct ast_calendar_tech caldav_tech = {
00052 .type = "caldav",
00053 .description = "CalDAV calendars",
00054 .module = AST_MODULE,
00055 .load_calendar = caldav_load_calendar,
00056 .unref_calendar = unref_caldav,
00057 .write_event = caldav_write_event,
00058 };
00059
00060 struct caldav_pvt {
00061 AST_DECLARE_STRING_FIELDS(
00062 AST_STRING_FIELD(url);
00063 AST_STRING_FIELD(user);
00064 AST_STRING_FIELD(secret);
00065 );
00066 struct ast_calendar *owner;
00067 ne_uri uri;
00068 ne_session *session;
00069 struct ao2_container *events;
00070 };
00071
00072 static void caldav_destructor(void *obj)
00073 {
00074 struct caldav_pvt *pvt = obj;
00075
00076 ast_debug(1, "Destroying pvt for CalDAV calendar %s\n", pvt->owner->name);
00077 if (pvt->session) {
00078 ne_session_destroy(pvt->session);
00079 }
00080 ast_string_field_free_memory(pvt);
00081
00082 ao2_callback(pvt->events, OBJ_UNLINK | OBJ_NODATA | OBJ_MULTIPLE, NULL, NULL);
00083
00084 ao2_ref(pvt->events, -1);
00085 }
00086
00087 static void *unref_caldav(void *obj)
00088 {
00089 struct caldav_pvt *pvt = obj;
00090
00091 ao2_ref(pvt, -1);
00092 return NULL;
00093 }
00094
00095 static int fetch_response_reader(void *data, const char *block, size_t len)
00096 {
00097 struct ast_str **response = data;
00098 unsigned char *tmp;
00099
00100 if (!(tmp = ast_malloc(len + 1))) {
00101 return -1;
00102 }
00103 memcpy(tmp, block, len);
00104 tmp[len] = '\0';
00105 ast_str_append(response, 0, "%s", tmp);
00106 ast_free(tmp);
00107
00108 return 0;
00109 }
00110
00111 static int auth_credentials(void *userdata, const char *realm, int attempts, char *username, char *secret)
00112 {
00113 struct caldav_pvt *pvt = userdata;
00114
00115 if (attempts > 1) {
00116 ast_log(LOG_WARNING, "Invalid username or password for CalDAV calendar '%s'\n", pvt->owner->name);
00117 return -1;
00118 }
00119
00120 ne_strnzcpy(username, pvt->user, NE_ABUFSIZ);
00121 ne_strnzcpy(secret, pvt->secret, NE_ABUFSIZ);
00122
00123 return 0;
00124 }
00125
00126 static struct ast_str *caldav_request(struct caldav_pvt *pvt, const char *method, struct ast_str *req_body, struct ast_str *subdir, const char *content_type)
00127 {
00128 struct ast_str *response;
00129 ne_request *req;
00130 int ret;
00131 char buf[1000];
00132
00133 if (!pvt) {
00134 ast_log(LOG_ERROR, "There is no private!\n");
00135 return NULL;
00136 }
00137
00138 if (!(response = ast_str_create(512))) {
00139 ast_log(LOG_ERROR, "Could not allocate memory for response.\n");
00140 return NULL;
00141 }
00142
00143 snprintf(buf, sizeof(buf), "%s%s", pvt->uri.path, subdir ? ast_str_buffer(subdir) : "");
00144
00145 req = ne_request_create(pvt->session, method, buf);
00146 ne_add_response_body_reader(req, ne_accept_2xx, fetch_response_reader, &response);
00147 ne_set_request_body_buffer(req, ast_str_buffer(req_body), ast_str_strlen(req_body));
00148 ne_add_request_header(req, "Content-type", ast_strlen_zero(content_type) ? "text/xml" : content_type);
00149
00150 ret = ne_request_dispatch(req);
00151 ne_request_destroy(req);
00152
00153 if (ret != NE_OK || !ast_str_strlen(response)) {
00154 if (ret != NE_OK) {
00155 ast_log(LOG_WARNING, "Unknown response to CalDAV calendar %s, request %s to %s: %s\n", pvt->owner->name, method, buf, ne_get_error(pvt->session));
00156 }
00157 ast_free(response);
00158 return NULL;
00159 }
00160
00161 return response;
00162 }
00163
00164 static int caldav_write_event(struct ast_calendar_event *event)
00165 {
00166 struct caldav_pvt *pvt;
00167 struct ast_str *body = NULL, *response = NULL, *subdir = NULL;
00168 icalcomponent *calendar, *icalevent;
00169 icaltimezone *utc = icaltimezone_get_utc_timezone();
00170 int ret = -1;
00171
00172 if (!event) {
00173 ast_log(LOG_WARNING, "No event passed!\n");
00174 return -1;
00175 }
00176
00177 if (!(event->start && event->end)) {
00178 ast_log(LOG_WARNING, "The event must contain a start and an end\n");
00179 return -1;
00180 }
00181 if (!(body = ast_str_create(512)) ||
00182 !(subdir = ast_str_create(32)) ||
00183 !(response = ast_str_create(512))) {
00184 ast_log(LOG_ERROR, "Could not allocate memory for request and response!\n");
00185 goto write_cleanup;
00186 }
00187
00188 pvt = event->owner->tech_pvt;
00189
00190 if (ast_strlen_zero(event->uid)) {
00191 unsigned short val[8];
00192 int x;
00193 for (x = 0; x < 8; x++) {
00194 val[x] = ast_random();
00195 }
00196 ast_string_field_build(event, uid, "%04x%04x-%04x-%04x-%04x-%04x%04x%04x", val[0], val[1], val[2], val[3], val[4], val[5], val[6], val[7]);
00197 }
00198
00199 calendar = icalcomponent_new(ICAL_VCALENDAR_COMPONENT);
00200 icalcomponent_add_property(calendar, icalproperty_new_version("2.0"));
00201 icalcomponent_add_property(calendar, icalproperty_new_prodid("-//Digium, Inc.//res_caldav//EN"));
00202
00203 icalevent = icalcomponent_new(ICAL_VEVENT_COMPONENT);
00204 icalcomponent_add_property(icalevent, icalproperty_new_dtstamp(icaltime_current_time_with_zone(utc)));
00205 icalcomponent_add_property(icalevent, icalproperty_new_uid(event->uid));
00206 icalcomponent_add_property(icalevent, icalproperty_new_dtstart(icaltime_from_timet_with_zone(event->start, 0, utc)));
00207 icalcomponent_add_property(icalevent, icalproperty_new_dtend(icaltime_from_timet_with_zone(event->end, 0, utc)));
00208 if (!ast_strlen_zero(event->organizer)) {
00209 icalcomponent_add_property(icalevent, icalproperty_new_organizer(event->organizer));
00210 }
00211 if (!ast_strlen_zero(event->summary)) {
00212 icalcomponent_add_property(icalevent, icalproperty_new_summary(event->summary));
00213 }
00214 if (!ast_strlen_zero(event->description)) {
00215 icalcomponent_add_property(icalevent, icalproperty_new_description(event->description));
00216 }
00217 if (!ast_strlen_zero(event->location)) {
00218 icalcomponent_add_property(icalevent, icalproperty_new_location(event->location));
00219 }
00220 if (!ast_strlen_zero(event->categories)) {
00221 icalcomponent_add_property(icalevent, icalproperty_new_categories(event->categories));
00222 }
00223 if (event->priority > 0) {
00224 icalcomponent_add_property(icalevent, icalproperty_new_priority(event->priority));
00225 }
00226
00227 switch (event->busy_state) {
00228 case AST_CALENDAR_BS_BUSY:
00229 icalcomponent_add_property(icalevent, icalproperty_new_status(ICAL_STATUS_CONFIRMED));
00230 break;
00231
00232 case AST_CALENDAR_BS_BUSY_TENTATIVE:
00233 icalcomponent_add_property(icalevent, icalproperty_new_status(ICAL_STATUS_TENTATIVE));
00234 break;
00235
00236 default:
00237 icalcomponent_add_property(icalevent, icalproperty_new_status(ICAL_STATUS_NONE));
00238 }
00239
00240 icalcomponent_add_component(calendar, icalevent);
00241
00242 ast_str_append(&body, 0, "%s", icalcomponent_as_ical_string(calendar));
00243 ast_str_set(&subdir, 0, "%s%s.ics", pvt->url[strlen(pvt->url) - 1] == '/' ? "" : "/", event->uid);
00244
00245 response = caldav_request(pvt, "PUT", body, subdir, "text/calendar");
00246
00247 ret = 0;
00248
00249 write_cleanup:
00250 if (body) {
00251 ast_free(body);
00252 }
00253 if (response) {
00254 ast_free(response);
00255 }
00256 if (subdir) {
00257 ast_free(subdir);
00258 }
00259
00260 return ret;
00261 }
00262
00263 static struct ast_str *caldav_get_events_between(struct caldav_pvt *pvt, time_t start_time, time_t end_time)
00264 {
00265 struct ast_str *body, *response;
00266 icaltimezone *utc = icaltimezone_get_utc_timezone();
00267 icaltimetype start, end;
00268 const char *start_str, *end_str;
00269
00270 if (!(body = ast_str_create(512))) {
00271 ast_log(LOG_ERROR, "Could not allocate memory for body of request!\n");
00272 return NULL;
00273 }
00274
00275 start = icaltime_from_timet_with_zone(start_time, 0, utc);
00276 end = icaltime_from_timet_with_zone(end_time, 0, utc);
00277 start_str = icaltime_as_ical_string(start);
00278 end_str = icaltime_as_ical_string(end);
00279
00280
00281
00282
00283
00284 ast_str_append(&body, 0,
00285 "<?xml version=\"1.0\" encoding=\"utf-8\" ?>\n"
00286 "<C:calendar-query xmlns:D=\"DAV:\" xmlns:C=\"urn:ietf:params:xml:ns:caldav\">\n"
00287 " <D:prop>\n"
00288 " <C:calendar-data>\n"
00289 " <C:expand start=\"%s\" end=\"%s\"/>\n"
00290 " </C:calendar-data>\n"
00291 " </D:prop>\n"
00292 " <C:filter>\n"
00293 " <C:comp-filter name=\"VCALENDAR\">\n"
00294 " <C:comp-filter name=\"VEVENT\">\n"
00295 " <C:time-range start=\"%s\" end=\"%s\"/>\n"
00296 " </C:comp-filter>\n"
00297 " </C:comp-filter>\n"
00298 " </C:filter>\n"
00299 "</C:calendar-query>\n", start_str, end_str, start_str, end_str);
00300
00301 response = caldav_request(pvt, "REPORT", body, NULL, NULL);
00302 ast_free(body);
00303
00304 return response;
00305 }
00306
00307 static time_t icalfloat_to_timet(icaltimetype time)
00308 {
00309 struct ast_tm tm = {0,};
00310 struct timeval tv;
00311
00312 tm.tm_mday = time.day;
00313 tm.tm_mon = time.month - 1;
00314 tm.tm_year = time.year - 1900;
00315 tm.tm_hour = time.hour;
00316 tm.tm_min = time.minute;
00317 tm.tm_sec = time.second;
00318 tm.tm_isdst = -1;
00319 tv = ast_mktime(&tm, NULL);
00320
00321 return tv.tv_sec;
00322 }
00323
00324
00325
00326
00327
00328
00329
00330
00331
00332 static void caldav_add_event(icalcomponent *comp, struct icaltime_span *span, void *data)
00333 {
00334 struct caldav_pvt *pvt = data;
00335 struct ast_calendar_event *event;
00336 icaltimezone *utc = icaltimezone_get_utc_timezone();
00337 icaltimetype start, end, tmp;
00338 icalcomponent *valarm;
00339 icalproperty *prop;
00340 struct icaltriggertype trigger;
00341
00342 if (!(pvt && pvt->owner)) {
00343 ast_log(LOG_ERROR, "Require a private structure with an owner\n");
00344 return;
00345 }
00346
00347 if (!(event = ast_calendar_event_alloc(pvt->owner))) {
00348 ast_log(LOG_ERROR, "Could not allocate an event!\n");
00349 return;
00350 }
00351
00352 start = icalcomponent_get_dtstart(comp);
00353 end = icalcomponent_get_dtend(comp);
00354
00355 event->start = icaltime_get_tzid(start) ? span->start : icalfloat_to_timet(start);
00356 event->end = icaltime_get_tzid(end) ? span->end : icalfloat_to_timet(end);
00357 event->busy_state = span->is_busy ? AST_CALENDAR_BS_BUSY : AST_CALENDAR_BS_FREE;
00358
00359 if ((prop = icalcomponent_get_first_property(comp, ICAL_SUMMARY_PROPERTY))) {
00360 ast_string_field_set(event, summary, icalproperty_get_value_as_string(prop));
00361 }
00362
00363 if ((prop = icalcomponent_get_first_property(comp, ICAL_DESCRIPTION_PROPERTY))) {
00364 ast_string_field_set(event, description, icalproperty_get_value_as_string(prop));
00365 }
00366
00367 if ((prop = icalcomponent_get_first_property(comp, ICAL_ORGANIZER_PROPERTY))) {
00368 ast_string_field_set(event, organizer, icalproperty_get_value_as_string(prop));
00369 }
00370
00371 if ((prop = icalcomponent_get_first_property(comp, ICAL_LOCATION_PROPERTY))) {
00372 ast_string_field_set(event, location, icalproperty_get_value_as_string(prop));
00373 }
00374
00375 if ((prop = icalcomponent_get_first_property(comp, ICAL_CATEGORIES_PROPERTY))) {
00376 ast_string_field_set(event, categories, icalproperty_get_value_as_string(prop));
00377 }
00378
00379 if ((prop = icalcomponent_get_first_property(comp, ICAL_PRIORITY_PROPERTY))) {
00380 event->priority = icalvalue_get_integer(icalproperty_get_value(prop));
00381 }
00382
00383 if ((prop = icalcomponent_get_first_property(comp, ICAL_UID_PROPERTY))) {
00384 ast_string_field_set(event, uid, icalproperty_get_value_as_string(prop));
00385 } else {
00386 ast_log(LOG_WARNING, "No UID found, but one is required. Generating, but updates may not be acurate\n");
00387 if (!ast_strlen_zero(event->summary)) {
00388 ast_string_field_set(event, uid, event->summary);
00389 } else {
00390 char tmp[100];
00391 snprintf(tmp, sizeof(tmp), "%lu", event->start);
00392 ast_string_field_set(event, uid, tmp);
00393 }
00394 }
00395
00396
00397 for (prop = icalcomponent_get_first_property(comp, ICAL_ATTENDEE_PROPERTY);
00398 prop; prop = icalcomponent_get_next_property(comp, ICAL_ATTENDEE_PROPERTY)) {
00399 struct ast_calendar_attendee *attendee;
00400 const char *data;
00401
00402 if (!(attendee = ast_calloc(1, sizeof(*attendee)))) {
00403 event = ast_calendar_unref_event(event);
00404 return;
00405 }
00406 data = icalproperty_get_attendee(prop);
00407 if (!ast_strlen_zero(data)) {
00408 attendee->data = ast_strdup(data);;
00409 AST_LIST_INSERT_TAIL(&event->attendees, attendee, next);
00410 }
00411 }
00412
00413
00414
00415
00416
00417 if (!(valarm = icalcomponent_get_first_component(comp, ICAL_VALARM_COMPONENT))) {
00418 ao2_link(pvt->events, event);
00419 event = ast_calendar_unref_event(event);
00420 return;
00421 }
00422
00423 if (!(prop = icalcomponent_get_first_property(valarm, ICAL_TRIGGER_PROPERTY))) {
00424 ast_log(LOG_WARNING, "VALARM has no TRIGGER, skipping!\n");
00425 ao2_link(pvt->events, event);
00426 event = ast_calendar_unref_event(event);
00427 return;
00428 }
00429
00430 trigger = icalproperty_get_trigger(prop);
00431
00432 if (icaltriggertype_is_null_trigger(trigger)) {
00433 ast_log(LOG_WARNING, "Bad TRIGGER for VALARM, skipping!\n");
00434 ao2_link(pvt->events, event);
00435 event = ast_calendar_unref_event(event);
00436 return;
00437 }
00438
00439 if (!icaltime_is_null_time(trigger.time)) {
00440 tmp = icaltime_convert_to_zone(trigger.time, utc);
00441 event->alarm = icaltime_as_timet_with_zone(tmp, utc);
00442 } else {
00443
00444
00445 tmp = icaltime_add(start, trigger.duration);
00446 event->alarm = icaltime_as_timet_with_zone(tmp, utc);
00447 }
00448
00449 ao2_link(pvt->events, event);
00450 event = ast_calendar_unref_event(event);
00451
00452 return;
00453 }
00454
00455 struct xmlstate {
00456 int in_caldata;
00457 struct caldav_pvt *pvt;
00458 struct ast_str *cdata;
00459 time_t start;
00460 time_t end;
00461 };
00462
00463 static void handle_start_element(void *data, const xmlChar *fullname, const xmlChar **atts)
00464 {
00465 struct xmlstate *state = data;
00466
00467 if (!xmlStrcasecmp(fullname, BAD_CAST "C:calendar-data")) {
00468 state->in_caldata = 1;
00469 ast_str_reset(state->cdata);
00470 }
00471 }
00472
00473 static void handle_end_element(void *data, const xmlChar *name)
00474 {
00475 struct xmlstate *state = data;
00476 struct icaltimetype start, end;
00477 icaltimezone *utc = icaltimezone_get_utc_timezone();
00478 icalcomponent *iter;
00479 icalcomponent *comp;
00480
00481 if (xmlStrcasecmp(name, BAD_CAST "C:calendar-data")) {
00482 return;
00483 }
00484
00485 state->in_caldata = 0;
00486 if (!(state->cdata && ast_str_strlen(state->cdata))) {
00487 return;
00488 }
00489
00490
00491 start = icaltime_from_timet_with_zone(state->start, 0, utc);
00492 end = icaltime_from_timet_with_zone(state->end, 0, utc);
00493 comp = icalparser_parse_string(ast_str_buffer(state->cdata));
00494
00495 for (iter = icalcomponent_get_first_component(comp, ICAL_VEVENT_COMPONENT);
00496 iter;
00497 iter = icalcomponent_get_next_component(comp, ICAL_VEVENT_COMPONENT))
00498 {
00499 icalcomponent_foreach_recurrence(iter, start, end, caldav_add_event, state->pvt);
00500 }
00501
00502 icalcomponent_free(comp);
00503 }
00504
00505 static void handle_characters(void *data, const xmlChar *ch, int len)
00506 {
00507 struct xmlstate *state = data;
00508 xmlChar *tmp;
00509
00510 if (!state->in_caldata) {
00511 return;
00512 }
00513
00514 tmp = xmlStrndup(ch, len);
00515 ast_str_append(&state->cdata, 0, "%s", (char *)tmp);
00516 xmlFree(tmp);
00517 }
00518
00519 static int update_caldav(struct caldav_pvt *pvt)
00520 {
00521 struct timeval now = ast_tvnow();
00522 time_t start, end;
00523 struct ast_str *response;
00524 xmlSAXHandler saxHandler;
00525 struct xmlstate state = {
00526 .in_caldata = 0,
00527 .pvt = pvt
00528 };
00529
00530 start = now.tv_sec;
00531 end = now.tv_sec + 60 * pvt->owner->timeframe;
00532 if (!(response = caldav_get_events_between(pvt, start, end))) {
00533 return -1;
00534 }
00535
00536 if (!(state.cdata = ast_str_create(512))) {
00537 ast_free(response);
00538 return -1;
00539 }
00540
00541 state.start = start;
00542 state.end = end;
00543
00544 memset(&saxHandler, 0, sizeof(saxHandler));
00545 saxHandler.startElement = handle_start_element;
00546 saxHandler.endElement = handle_end_element;
00547 saxHandler.characters = handle_characters;
00548
00549 xmlSAXUserParseMemory(&saxHandler, &state, ast_str_buffer(response), ast_str_strlen(response));
00550
00551 ast_calendar_merge_events(pvt->owner, pvt->events);
00552
00553 ast_free(response);
00554 ast_free(state.cdata);
00555
00556 return 0;
00557 }
00558
00559 static int verify_cert(void *userdata, int failures, const ne_ssl_certificate *cert)
00560 {
00561
00562 return 0;
00563 }
00564
00565 static void *caldav_load_calendar(void *void_data)
00566 {
00567 struct caldav_pvt *pvt;
00568 const struct ast_config *cfg;
00569 struct ast_variable *v;
00570 struct ast_calendar *cal = void_data;
00571 ast_mutex_t refreshlock;
00572
00573 if (!(cal && (cfg = ast_calendar_config_acquire()))) {
00574 ast_log(LOG_ERROR, "You must enable calendar support for res_caldav to load\n");
00575 return NULL;
00576 }
00577
00578 if (ao2_trylock(cal)) {
00579 if (cal->unloading) {
00580 ast_log(LOG_WARNING, "Unloading module, load_calendar cancelled.\n");
00581 } else {
00582 ast_log(LOG_WARNING, "Could not lock calendar, aborting!\n");
00583 }
00584 ast_calendar_config_release();
00585 return NULL;
00586 }
00587
00588 if (!(pvt = ao2_alloc(sizeof(*pvt), caldav_destructor))) {
00589 ast_log(LOG_ERROR, "Could not allocate caldav_pvt structure for calendar: %s\n", cal->name);
00590 ast_calendar_config_release();
00591 return NULL;
00592 }
00593
00594 pvt->owner = cal;
00595
00596 if (!(pvt->events = ast_calendar_event_container_alloc())) {
00597 ast_log(LOG_ERROR, "Could not allocate space for fetching events for calendar: %s\n", cal->name);
00598 pvt = unref_caldav(pvt);
00599 ao2_unlock(cal);
00600 ast_calendar_config_release();
00601 return NULL;
00602 }
00603
00604 if (ast_string_field_init(pvt, 32)) {
00605 ast_log(LOG_ERROR, "Couldn't allocate string field space for calendar: %s\n", cal->name);
00606 pvt = unref_caldav(pvt);
00607 ao2_unlock(cal);
00608 ast_calendar_config_release();
00609 return NULL;
00610 }
00611
00612 for (v = ast_variable_browse(cfg, cal->name); v; v = v->next) {
00613 if (!strcasecmp(v->name, "url")) {
00614 ast_string_field_set(pvt, url, v->value);
00615 } else if (!strcasecmp(v->name, "user")) {
00616 ast_string_field_set(pvt, user, v->value);
00617 } else if (!strcasecmp(v->name, "secret")) {
00618 ast_string_field_set(pvt, secret, v->value);
00619 }
00620 }
00621
00622 ast_calendar_config_release();
00623
00624 if (ast_strlen_zero(pvt->url)) {
00625 ast_log(LOG_WARNING, "No URL was specified for CalDAV calendar '%s' - skipping.\n", cal->name);
00626 pvt = unref_caldav(pvt);
00627 ao2_unlock(cal);
00628 return NULL;
00629 }
00630
00631 if (ne_uri_parse(pvt->url, &pvt->uri) || pvt->uri.host == NULL || pvt->uri.path == NULL) {
00632 ast_log(LOG_WARNING, "Could not parse url '%s' for CalDAV calendar '%s' - skipping.\n", pvt->url, cal->name);
00633 pvt = unref_caldav(pvt);
00634 ao2_unlock(cal);
00635 return NULL;
00636 }
00637
00638 if (pvt->uri.scheme == NULL) {
00639 pvt->uri.scheme = "http";
00640 }
00641
00642 if (pvt->uri.port == 0) {
00643 pvt->uri.port = ne_uri_defaultport(pvt->uri.scheme);
00644 }
00645
00646 pvt->session = ne_session_create(pvt->uri.scheme, pvt->uri.host, pvt->uri.port);
00647 ne_redirect_register(pvt->session);
00648 ne_set_server_auth(pvt->session, auth_credentials, pvt);
00649 if (!strcasecmp(pvt->uri.scheme, "https")) {
00650 ne_ssl_trust_default_ca(pvt->session);
00651 ne_ssl_set_verify(pvt->session, verify_cert, NULL);
00652 }
00653
00654 cal->tech_pvt = pvt;
00655
00656 ast_mutex_init(&refreshlock);
00657
00658
00659 update_caldav(pvt);
00660
00661 ao2_unlock(cal);
00662
00663
00664 for (;;) {
00665 struct timeval tv = ast_tvnow();
00666 struct timespec ts = {0,};
00667
00668 ts.tv_sec = tv.tv_sec + (60 * pvt->owner->refresh);
00669
00670 ast_mutex_lock(&refreshlock);
00671 while (!pvt->owner->unloading) {
00672 if (ast_cond_timedwait(&pvt->owner->unload, &refreshlock, &ts) == ETIMEDOUT) {
00673 break;
00674 }
00675 }
00676 ast_mutex_unlock(&refreshlock);
00677
00678 if (pvt->owner->unloading) {
00679 ast_debug(10, "Skipping refresh since we got a shutdown signal\n");
00680 return NULL;
00681 }
00682
00683 ast_debug(10, "Refreshing after %d minute timeout\n", pvt->owner->refresh);
00684
00685 update_caldav(pvt);
00686 }
00687
00688 return NULL;
00689 }
00690
00691 static int load_module(void)
00692 {
00693 ne_sock_init();
00694 if (ast_calendar_register(&caldav_tech)) {
00695 ne_sock_exit();
00696 return AST_MODULE_LOAD_DECLINE;
00697 }
00698
00699 return AST_MODULE_LOAD_SUCCESS;
00700 }
00701
00702 static int unload_module(void)
00703 {
00704 ast_calendar_unregister(&caldav_tech);
00705 ne_sock_exit();
00706 return 0;
00707 }
00708
00709 AST_MODULE_INFO(ASTERISK_GPL_KEY, AST_MODFLAG_LOAD_ORDER, "Asterisk CalDAV Calendar Integration",
00710 .load = load_module,
00711 .unload = unload_module,
00712 .load_pri = AST_MODPRI_DEVSTATE_PLUGIN,
00713 );