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00030 #include "asterisk.h"
00031
00032 ASTERISK_FILE_VERSION(__FILE__, "$Revision: 328209 $")
00033
00034 #include <libical/ical.h>
00035 #include <ne_session.h>
00036 #include <ne_uri.h>
00037 #include <ne_request.h>
00038 #include <ne_auth.h>
00039 #include <ne_redirect.h>
00040 #include <libxml/xmlmemory.h>
00041 #include <libxml/parser.h>
00042
00043 #include "asterisk/module.h"
00044 #include "asterisk/calendar.h"
00045 #include "asterisk/lock.h"
00046 #include "asterisk/config.h"
00047 #include "asterisk/astobj2.h"
00048
00049 static void *caldav_load_calendar(void *data);
00050 static void *unref_caldav(void *obj);
00051 static int caldav_write_event(struct ast_calendar_event *event);
00052
00053 static struct ast_calendar_tech caldav_tech = {
00054 .type = "caldav",
00055 .description = "CalDAV calendars",
00056 .module = AST_MODULE,
00057 .load_calendar = caldav_load_calendar,
00058 .unref_calendar = unref_caldav,
00059 .write_event = caldav_write_event,
00060 };
00061
00062 struct caldav_pvt {
00063 AST_DECLARE_STRING_FIELDS(
00064 AST_STRING_FIELD(url);
00065 AST_STRING_FIELD(user);
00066 AST_STRING_FIELD(secret);
00067 );
00068 struct ast_calendar *owner;
00069 ne_uri uri;
00070 ne_session *session;
00071 struct ao2_container *events;
00072 };
00073
00074 static void caldav_destructor(void *obj)
00075 {
00076 struct caldav_pvt *pvt = obj;
00077
00078 ast_debug(1, "Destroying pvt for CalDAV calendar %s\n", pvt->owner->name);
00079 if (pvt->session) {
00080 ne_session_destroy(pvt->session);
00081 }
00082 ast_string_field_free_memory(pvt);
00083
00084 ao2_callback(pvt->events, OBJ_UNLINK | OBJ_NODATA | OBJ_MULTIPLE, NULL, NULL);
00085
00086 ao2_ref(pvt->events, -1);
00087 }
00088
00089 static void *unref_caldav(void *obj)
00090 {
00091 struct caldav_pvt *pvt = obj;
00092
00093 ao2_ref(pvt, -1);
00094 return NULL;
00095 }
00096
00097 static int fetch_response_reader(void *data, const char *block, size_t len)
00098 {
00099 struct ast_str **response = data;
00100 unsigned char *tmp;
00101
00102 if (!(tmp = ast_malloc(len + 1))) {
00103 return -1;
00104 }
00105 memcpy(tmp, block, len);
00106 tmp[len] = '\0';
00107 ast_str_append(response, 0, "%s", tmp);
00108 ast_free(tmp);
00109
00110 return 0;
00111 }
00112
00113 static int auth_credentials(void *userdata, const char *realm, int attempts, char *username, char *secret)
00114 {
00115 struct caldav_pvt *pvt = userdata;
00116
00117 if (attempts > 1) {
00118 ast_log(LOG_WARNING, "Invalid username or password for CalDAV calendar '%s'\n", pvt->owner->name);
00119 return -1;
00120 }
00121
00122 ne_strnzcpy(username, pvt->user, NE_ABUFSIZ);
00123 ne_strnzcpy(secret, pvt->secret, NE_ABUFSIZ);
00124
00125 return 0;
00126 }
00127
00128 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)
00129 {
00130 struct ast_str *response;
00131 ne_request *req;
00132 int ret;
00133 char buf[1000];
00134
00135 if (!pvt) {
00136 ast_log(LOG_ERROR, "There is no private!\n");
00137 return NULL;
00138 }
00139
00140 if (!(response = ast_str_create(512))) {
00141 ast_log(LOG_ERROR, "Could not allocate memory for response.\n");
00142 return NULL;
00143 }
00144
00145 snprintf(buf, sizeof(buf), "%s%s", pvt->uri.path, subdir ? ast_str_buffer(subdir) : "");
00146
00147 req = ne_request_create(pvt->session, method, buf);
00148 ne_add_response_body_reader(req, ne_accept_2xx, fetch_response_reader, &response);
00149 ne_set_request_body_buffer(req, ast_str_buffer(req_body), ast_str_strlen(req_body));
00150 ne_add_request_header(req, "Content-type", ast_strlen_zero(content_type) ? "text/xml" : content_type);
00151
00152 ret = ne_request_dispatch(req);
00153 ne_request_destroy(req);
00154
00155 if (ret != NE_OK || !ast_str_strlen(response)) {
00156 if (ret != NE_OK) {
00157 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));
00158 }
00159 ast_free(response);
00160 return NULL;
00161 }
00162
00163 return response;
00164 }
00165
00166 static int caldav_write_event(struct ast_calendar_event *event)
00167 {
00168 struct caldav_pvt *pvt;
00169 struct ast_str *body = NULL, *response = NULL, *subdir = NULL;
00170 icalcomponent *calendar, *icalevent;
00171 icaltimezone *utc = icaltimezone_get_utc_timezone();
00172 int ret = -1;
00173
00174 if (!event) {
00175 ast_log(LOG_WARNING, "No event passed!\n");
00176 return -1;
00177 }
00178
00179 if (!(event->start && event->end)) {
00180 ast_log(LOG_WARNING, "The event must contain a start and an end\n");
00181 return -1;
00182 }
00183 if (!(body = ast_str_create(512)) ||
00184 !(subdir = ast_str_create(32)) ||
00185 !(response = ast_str_create(512))) {
00186 ast_log(LOG_ERROR, "Could not allocate memory for request and response!\n");
00187 goto write_cleanup;
00188 }
00189
00190 pvt = event->owner->tech_pvt;
00191
00192 if (ast_strlen_zero(event->uid)) {
00193 unsigned short val[8];
00194 int x;
00195 for (x = 0; x < 8; x++) {
00196 val[x] = ast_random();
00197 }
00198 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]);
00199 }
00200
00201 calendar = icalcomponent_new(ICAL_VCALENDAR_COMPONENT);
00202 icalcomponent_add_property(calendar, icalproperty_new_version("2.0"));
00203 icalcomponent_add_property(calendar, icalproperty_new_prodid("-//Digium, Inc.//res_caldav//EN"));
00204
00205 icalevent = icalcomponent_new(ICAL_VEVENT_COMPONENT);
00206 icalcomponent_add_property(icalevent, icalproperty_new_dtstamp(icaltime_current_time_with_zone(utc)));
00207 icalcomponent_add_property(icalevent, icalproperty_new_uid(event->uid));
00208 icalcomponent_add_property(icalevent, icalproperty_new_dtstart(icaltime_from_timet_with_zone(event->start, 0, utc)));
00209 icalcomponent_add_property(icalevent, icalproperty_new_dtend(icaltime_from_timet_with_zone(event->end, 0, utc)));
00210 if (!ast_strlen_zero(event->organizer)) {
00211 icalcomponent_add_property(icalevent, icalproperty_new_organizer(event->organizer));
00212 }
00213 if (!ast_strlen_zero(event->summary)) {
00214 icalcomponent_add_property(icalevent, icalproperty_new_summary(event->summary));
00215 }
00216 if (!ast_strlen_zero(event->description)) {
00217 icalcomponent_add_property(icalevent, icalproperty_new_description(event->description));
00218 }
00219 if (!ast_strlen_zero(event->location)) {
00220 icalcomponent_add_property(icalevent, icalproperty_new_location(event->location));
00221 }
00222 if (!ast_strlen_zero(event->categories)) {
00223 icalcomponent_add_property(icalevent, icalproperty_new_categories(event->categories));
00224 }
00225 if (event->priority > 0) {
00226 icalcomponent_add_property(icalevent, icalproperty_new_priority(event->priority));
00227 }
00228
00229 switch (event->busy_state) {
00230 case AST_CALENDAR_BS_BUSY:
00231 icalcomponent_add_property(icalevent, icalproperty_new_status(ICAL_STATUS_CONFIRMED));
00232 break;
00233
00234 case AST_CALENDAR_BS_BUSY_TENTATIVE:
00235 icalcomponent_add_property(icalevent, icalproperty_new_status(ICAL_STATUS_TENTATIVE));
00236 break;
00237
00238 default:
00239 icalcomponent_add_property(icalevent, icalproperty_new_status(ICAL_STATUS_NONE));
00240 }
00241
00242 icalcomponent_add_component(calendar, icalevent);
00243
00244 ast_str_append(&body, 0, "%s", icalcomponent_as_ical_string(calendar));
00245 ast_str_set(&subdir, 0, "%s%s.ics", pvt->url[strlen(pvt->url) - 1] == '/' ? "" : "/", event->uid);
00246
00247 response = caldav_request(pvt, "PUT", body, subdir, "text/calendar");
00248
00249 ret = 0;
00250
00251 write_cleanup:
00252 if (body) {
00253 ast_free(body);
00254 }
00255 if (response) {
00256 ast_free(response);
00257 }
00258 if (subdir) {
00259 ast_free(subdir);
00260 }
00261
00262 return ret;
00263 }
00264
00265 static struct ast_str *caldav_get_events_between(struct caldav_pvt *pvt, time_t start_time, time_t end_time)
00266 {
00267 struct ast_str *body, *response;
00268 icaltimezone *utc = icaltimezone_get_utc_timezone();
00269 icaltimetype start, end;
00270 const char *start_str, *end_str;
00271
00272 if (!(body = ast_str_create(512))) {
00273 ast_log(LOG_ERROR, "Could not allocate memory for body of request!\n");
00274 return NULL;
00275 }
00276
00277 start = icaltime_from_timet_with_zone(start_time, 0, utc);
00278 end = icaltime_from_timet_with_zone(end_time, 0, utc);
00279 start_str = icaltime_as_ical_string(start);
00280 end_str = icaltime_as_ical_string(end);
00281
00282
00283
00284
00285
00286 ast_str_append(&body, 0,
00287 "<?xml version=\"1.0\" encoding=\"utf-8\" ?>\n"
00288 "<C:calendar-query xmlns:D=\"DAV:\" xmlns:C=\"urn:ietf:params:xml:ns:caldav\">\n"
00289 " <D:prop>\n"
00290 " <C:calendar-data>\n"
00291 " <C:expand start=\"%s\" end=\"%s\"/>\n"
00292 " </C:calendar-data>\n"
00293 " </D:prop>\n"
00294 " <C:filter>\n"
00295 " <C:comp-filter name=\"VCALENDAR\">\n"
00296 " <C:comp-filter name=\"VEVENT\">\n"
00297 " <C:time-range start=\"%s\" end=\"%s\"/>\n"
00298 " </C:comp-filter>\n"
00299 " </C:comp-filter>\n"
00300 " </C:filter>\n"
00301 "</C:calendar-query>\n", start_str, end_str, start_str, end_str);
00302
00303 response = caldav_request(pvt, "REPORT", body, NULL, NULL);
00304 ast_free(body);
00305
00306 return response;
00307 }
00308
00309 static time_t icalfloat_to_timet(icaltimetype time)
00310 {
00311 struct ast_tm tm = {0,};
00312 struct timeval tv;
00313
00314 tm.tm_mday = time.day;
00315 tm.tm_mon = time.month - 1;
00316 tm.tm_year = time.year - 1900;
00317 tm.tm_hour = time.hour;
00318 tm.tm_min = time.minute;
00319 tm.tm_sec = time.second;
00320 tm.tm_isdst = -1;
00321 tv = ast_mktime(&tm, NULL);
00322
00323 return tv.tv_sec;
00324 }
00325
00326
00327
00328
00329
00330
00331
00332
00333
00334 static void caldav_add_event(icalcomponent *comp, struct icaltime_span *span, void *data)
00335 {
00336 struct caldav_pvt *pvt = data;
00337 struct ast_calendar_event *event;
00338 icaltimezone *utc = icaltimezone_get_utc_timezone();
00339 icaltimetype start, end, tmp;
00340 icalcomponent *valarm;
00341 icalproperty *prop;
00342 struct icaltriggertype trigger;
00343
00344 if (!(pvt && pvt->owner)) {
00345 ast_log(LOG_ERROR, "Require a private structure with an owner\n");
00346 return;
00347 }
00348
00349 if (!(event = ast_calendar_event_alloc(pvt->owner))) {
00350 ast_log(LOG_ERROR, "Could not allocate an event!\n");
00351 return;
00352 }
00353
00354 start = icalcomponent_get_dtstart(comp);
00355 end = icalcomponent_get_dtend(comp);
00356
00357 event->start = icaltime_get_tzid(start) ? span->start : icalfloat_to_timet(start);
00358 event->end = icaltime_get_tzid(end) ? span->end : icalfloat_to_timet(end);
00359 event->busy_state = span->is_busy ? AST_CALENDAR_BS_BUSY : AST_CALENDAR_BS_FREE;
00360
00361 if ((prop = icalcomponent_get_first_property(comp, ICAL_SUMMARY_PROPERTY))) {
00362 ast_string_field_set(event, summary, icalproperty_get_value_as_string(prop));
00363 }
00364
00365 if ((prop = icalcomponent_get_first_property(comp, ICAL_DESCRIPTION_PROPERTY))) {
00366 ast_string_field_set(event, description, icalproperty_get_value_as_string(prop));
00367 }
00368
00369 if ((prop = icalcomponent_get_first_property(comp, ICAL_ORGANIZER_PROPERTY))) {
00370 ast_string_field_set(event, organizer, icalproperty_get_value_as_string(prop));
00371 }
00372
00373 if ((prop = icalcomponent_get_first_property(comp, ICAL_LOCATION_PROPERTY))) {
00374 ast_string_field_set(event, location, icalproperty_get_value_as_string(prop));
00375 }
00376
00377 if ((prop = icalcomponent_get_first_property(comp, ICAL_CATEGORIES_PROPERTY))) {
00378 ast_string_field_set(event, categories, icalproperty_get_value_as_string(prop));
00379 }
00380
00381 if ((prop = icalcomponent_get_first_property(comp, ICAL_PRIORITY_PROPERTY))) {
00382 event->priority = icalvalue_get_integer(icalproperty_get_value(prop));
00383 }
00384
00385 if ((prop = icalcomponent_get_first_property(comp, ICAL_UID_PROPERTY))) {
00386 ast_string_field_set(event, uid, icalproperty_get_value_as_string(prop));
00387 } else {
00388 ast_log(LOG_WARNING, "No UID found, but one is required. Generating, but updates may not be acurate\n");
00389 if (!ast_strlen_zero(event->summary)) {
00390 ast_string_field_set(event, uid, event->summary);
00391 } else {
00392 char tmp[100];
00393 snprintf(tmp, sizeof(tmp), "%lu", event->start);
00394 ast_string_field_set(event, uid, tmp);
00395 }
00396 }
00397
00398
00399 for (prop = icalcomponent_get_first_property(comp, ICAL_ATTENDEE_PROPERTY);
00400 prop; prop = icalcomponent_get_next_property(comp, ICAL_ATTENDEE_PROPERTY)) {
00401 struct ast_calendar_attendee *attendee;
00402 const char *data;
00403
00404 if (!(attendee = ast_calloc(1, sizeof(*attendee)))) {
00405 event = ast_calendar_unref_event(event);
00406 return;
00407 }
00408 data = icalproperty_get_attendee(prop);
00409 if (!ast_strlen_zero(data)) {
00410 attendee->data = ast_strdup(data);;
00411 AST_LIST_INSERT_TAIL(&event->attendees, attendee, next);
00412 }
00413 }
00414
00415
00416
00417
00418
00419 if (!(valarm = icalcomponent_get_first_component(comp, ICAL_VALARM_COMPONENT))) {
00420 ao2_link(pvt->events, event);
00421 event = ast_calendar_unref_event(event);
00422 return;
00423 }
00424
00425 if (!(prop = icalcomponent_get_first_property(valarm, ICAL_TRIGGER_PROPERTY))) {
00426 ast_log(LOG_WARNING, "VALARM has no TRIGGER, skipping!\n");
00427 ao2_link(pvt->events, event);
00428 event = ast_calendar_unref_event(event);
00429 return;
00430 }
00431
00432 trigger = icalproperty_get_trigger(prop);
00433
00434 if (icaltriggertype_is_null_trigger(trigger)) {
00435 ast_log(LOG_WARNING, "Bad TRIGGER for VALARM, skipping!\n");
00436 ao2_link(pvt->events, event);
00437 event = ast_calendar_unref_event(event);
00438 return;
00439 }
00440
00441 if (!icaltime_is_null_time(trigger.time)) {
00442 tmp = icaltime_convert_to_zone(trigger.time, utc);
00443 event->alarm = icaltime_as_timet_with_zone(tmp, utc);
00444 } else {
00445
00446
00447 tmp = icaltime_add(start, trigger.duration);
00448 event->alarm = icaltime_as_timet_with_zone(tmp, utc);
00449 }
00450
00451 ao2_link(pvt->events, event);
00452 event = ast_calendar_unref_event(event);
00453
00454 return;
00455 }
00456
00457 struct xmlstate {
00458 int in_caldata;
00459 struct caldav_pvt *pvt;
00460 struct ast_str *cdata;
00461 time_t start;
00462 time_t end;
00463 };
00464
00465 static void handle_start_element(void *data, const xmlChar *fullname, const xmlChar **atts)
00466 {
00467 struct xmlstate *state = data;
00468
00469 if (!xmlStrcasecmp(fullname, BAD_CAST "C:calendar-data")) {
00470 state->in_caldata = 1;
00471 ast_str_reset(state->cdata);
00472 }
00473 }
00474
00475 static void handle_end_element(void *data, const xmlChar *name)
00476 {
00477 struct xmlstate *state = data;
00478 struct icaltimetype start, end;
00479 icaltimezone *utc = icaltimezone_get_utc_timezone();
00480 icalcomponent *iter;
00481 icalcomponent *comp;
00482
00483 if (xmlStrcasecmp(name, BAD_CAST "C:calendar-data")) {
00484 return;
00485 }
00486
00487 state->in_caldata = 0;
00488 if (!(state->cdata && ast_str_strlen(state->cdata))) {
00489 return;
00490 }
00491
00492
00493 start = icaltime_from_timet_with_zone(state->start, 0, utc);
00494 end = icaltime_from_timet_with_zone(state->end, 0, utc);
00495 comp = icalparser_parse_string(ast_str_buffer(state->cdata));
00496
00497 for (iter = icalcomponent_get_first_component(comp, ICAL_VEVENT_COMPONENT);
00498 iter;
00499 iter = icalcomponent_get_next_component(comp, ICAL_VEVENT_COMPONENT))
00500 {
00501 icalcomponent_foreach_recurrence(iter, start, end, caldav_add_event, state->pvt);
00502 }
00503
00504 icalcomponent_free(comp);
00505 }
00506
00507 static void handle_characters(void *data, const xmlChar *ch, int len)
00508 {
00509 struct xmlstate *state = data;
00510 xmlChar *tmp;
00511
00512 if (!state->in_caldata) {
00513 return;
00514 }
00515
00516 tmp = xmlStrndup(ch, len);
00517 ast_str_append(&state->cdata, 0, "%s", (char *)tmp);
00518 xmlFree(tmp);
00519 }
00520
00521 static int update_caldav(struct caldav_pvt *pvt)
00522 {
00523 struct timeval now = ast_tvnow();
00524 time_t start, end;
00525 struct ast_str *response;
00526 xmlSAXHandler saxHandler;
00527 struct xmlstate state = {
00528 .in_caldata = 0,
00529 .pvt = pvt
00530 };
00531
00532 start = now.tv_sec;
00533 end = now.tv_sec + 60 * pvt->owner->timeframe;
00534 if (!(response = caldav_get_events_between(pvt, start, end))) {
00535 return -1;
00536 }
00537
00538 if (!(state.cdata = ast_str_create(512))) {
00539 ast_free(response);
00540 return -1;
00541 }
00542
00543 state.start = start;
00544 state.end = end;
00545
00546 memset(&saxHandler, 0, sizeof(saxHandler));
00547 saxHandler.startElement = handle_start_element;
00548 saxHandler.endElement = handle_end_element;
00549 saxHandler.characters = handle_characters;
00550
00551 xmlSAXUserParseMemory(&saxHandler, &state, ast_str_buffer(response), ast_str_strlen(response));
00552
00553 ast_calendar_merge_events(pvt->owner, pvt->events);
00554
00555 ast_free(response);
00556 ast_free(state.cdata);
00557
00558 return 0;
00559 }
00560
00561 static int verify_cert(void *userdata, int failures, const ne_ssl_certificate *cert)
00562 {
00563
00564 return 0;
00565 }
00566
00567 static void *caldav_load_calendar(void *void_data)
00568 {
00569 struct caldav_pvt *pvt;
00570 const struct ast_config *cfg;
00571 struct ast_variable *v;
00572 struct ast_calendar *cal = void_data;
00573 ast_mutex_t refreshlock;
00574
00575 if (!(cal && (cfg = ast_calendar_config_acquire()))) {
00576 ast_log(LOG_ERROR, "You must enable calendar support for res_caldav to load\n");
00577 return NULL;
00578 }
00579
00580 if (ao2_trylock(cal)) {
00581 if (cal->unloading) {
00582 ast_log(LOG_WARNING, "Unloading module, load_calendar cancelled.\n");
00583 } else {
00584 ast_log(LOG_WARNING, "Could not lock calendar, aborting!\n");
00585 }
00586 ast_calendar_config_release();
00587 return NULL;
00588 }
00589
00590 if (!(pvt = ao2_alloc(sizeof(*pvt), caldav_destructor))) {
00591 ast_log(LOG_ERROR, "Could not allocate caldav_pvt structure for calendar: %s\n", cal->name);
00592 ast_calendar_config_release();
00593 return NULL;
00594 }
00595
00596 pvt->owner = cal;
00597
00598 if (!(pvt->events = ast_calendar_event_container_alloc())) {
00599 ast_log(LOG_ERROR, "Could not allocate space for fetching events for calendar: %s\n", cal->name);
00600 pvt = unref_caldav(pvt);
00601 ao2_unlock(cal);
00602 ast_calendar_config_release();
00603 return NULL;
00604 }
00605
00606 if (ast_string_field_init(pvt, 32)) {
00607 ast_log(LOG_ERROR, "Couldn't allocate string field space for calendar: %s\n", cal->name);
00608 pvt = unref_caldav(pvt);
00609 ao2_unlock(cal);
00610 ast_calendar_config_release();
00611 return NULL;
00612 }
00613
00614 for (v = ast_variable_browse(cfg, cal->name); v; v = v->next) {
00615 if (!strcasecmp(v->name, "url")) {
00616 ast_string_field_set(pvt, url, v->value);
00617 } else if (!strcasecmp(v->name, "user")) {
00618 ast_string_field_set(pvt, user, v->value);
00619 } else if (!strcasecmp(v->name, "secret")) {
00620 ast_string_field_set(pvt, secret, v->value);
00621 }
00622 }
00623
00624 ast_calendar_config_release();
00625
00626 if (ast_strlen_zero(pvt->url)) {
00627 ast_log(LOG_WARNING, "No URL was specified for CalDAV calendar '%s' - skipping.\n", cal->name);
00628 pvt = unref_caldav(pvt);
00629 ao2_unlock(cal);
00630 return NULL;
00631 }
00632
00633 if (ne_uri_parse(pvt->url, &pvt->uri) || pvt->uri.host == NULL || pvt->uri.path == NULL) {
00634 ast_log(LOG_WARNING, "Could not parse url '%s' for CalDAV calendar '%s' - skipping.\n", pvt->url, cal->name);
00635 pvt = unref_caldav(pvt);
00636 ao2_unlock(cal);
00637 return NULL;
00638 }
00639
00640 if (pvt->uri.scheme == NULL) {
00641 pvt->uri.scheme = "http";
00642 }
00643
00644 if (pvt->uri.port == 0) {
00645 pvt->uri.port = ne_uri_defaultport(pvt->uri.scheme);
00646 }
00647
00648 pvt->session = ne_session_create(pvt->uri.scheme, pvt->uri.host, pvt->uri.port);
00649 ne_redirect_register(pvt->session);
00650 ne_set_server_auth(pvt->session, auth_credentials, pvt);
00651 if (!strcasecmp(pvt->uri.scheme, "https")) {
00652 ne_ssl_trust_default_ca(pvt->session);
00653 ne_ssl_set_verify(pvt->session, verify_cert, NULL);
00654 }
00655
00656 cal->tech_pvt = pvt;
00657
00658 ast_mutex_init(&refreshlock);
00659
00660
00661 update_caldav(pvt);
00662
00663 ao2_unlock(cal);
00664
00665
00666 for (;;) {
00667 struct timeval tv = ast_tvnow();
00668 struct timespec ts = {0,};
00669
00670 ts.tv_sec = tv.tv_sec + (60 * pvt->owner->refresh);
00671
00672 ast_mutex_lock(&refreshlock);
00673 while (!pvt->owner->unloading) {
00674 if (ast_cond_timedwait(&pvt->owner->unload, &refreshlock, &ts) == ETIMEDOUT) {
00675 break;
00676 }
00677 }
00678 ast_mutex_unlock(&refreshlock);
00679
00680 if (pvt->owner->unloading) {
00681 ast_debug(10, "Skipping refresh since we got a shutdown signal\n");
00682 return NULL;
00683 }
00684
00685 ast_debug(10, "Refreshing after %d minute timeout\n", pvt->owner->refresh);
00686
00687 update_caldav(pvt);
00688 }
00689
00690 return NULL;
00691 }
00692
00693 static int load_module(void)
00694 {
00695 ne_sock_init();
00696 if (ast_calendar_register(&caldav_tech)) {
00697 ne_sock_exit();
00698 return AST_MODULE_LOAD_DECLINE;
00699 }
00700
00701 return AST_MODULE_LOAD_SUCCESS;
00702 }
00703
00704 static int unload_module(void)
00705 {
00706 ast_calendar_unregister(&caldav_tech);
00707 ne_sock_exit();
00708 return 0;
00709 }
00710
00711 AST_MODULE_INFO(ASTERISK_GPL_KEY, AST_MODFLAG_LOAD_ORDER, "Asterisk CalDAV Calendar Integration",
00712 .load = load_module,
00713 .unload = unload_module,
00714 .load_pri = AST_MODPRI_DEVSTATE_PLUGIN,
00715 );