src/core/sipe-ews.c

   1 /**
   2  * @file sipe-ews.c
   3  *
   4  * pidgin-sipe
   5  *
   6  * Copyright (C) 2010-11 SIPE Project <http://sipe.sourceforge.net/>
   7  * Copyright (C) 2010, 2009 pier11 <pier11@operamail.com>
   8  *
   9  *
  10  * This program is free software; you can redistribute it and/or modify
  11  * it under the terms of the GNU General Public License as published by
  12  * the Free Software Foundation; either version 2 of the License, or
  13  * (at your option) any later version.
  14  *
  15  * This program is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18  * GNU General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU General Public License
  21  * along with this program; if not, write to the Free Software
  22  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  23  */
  24
  25 /**
  26 For communication with Exchange 2007/2010 Web Server/Web Services:
  27
  28 1) Autodiscover (HTTPS POST request). With redirect support. XML content.
  29 1.1) DNS SRV record _autodiscover._tcp.<domain> may also be resolved.
  30 2) Availability Web service (SOAP = HTTPS POST + XML) call.
  31 3) Out of Office (OOF) Web Service (SOAP = HTTPS POST + XML) call.
  32 4) Web server authentication required - NTLM and/or Negotiate (Kerberos).
  33
  34 Note: ews - EWS stands for Exchange Web Services.
  35
  36 It will be able to retrieve our Calendar information (FreeBusy, WorkingHours,
  37 Meetings Subject and Location, Is_Meeting) as well as our Out of Office (OOF) note
  38 from Exchange Web Services for subsequent publishing.
  39
  40 Ref. for more implementation details:
  41 http://sourceforge.net/projects/sipe/forums/forum/688535/topic/3403462
  42
  43 Similar functionality for Lotus Notes/Domino, iCalendar/CalDAV/Google would
  44 be great to implement too.
  45 */
  46
  47 #include <string.h>
  48 #include <time.h>
  49
  50 #include <glib.h>
  51
  52 #include "http-conn.h"
  53 #include "sipe-backend.h"
  54 #include "sipe-common.h"
  55 #include "sipe-cal.h"
  56 #include "sipe-core.h"
  57 #include "sipe-core-private.h"
  58 #include "sipe-ews.h"
  59 #include "sipe-utils.h"
  60 #include "sipe-xml.h"
  61
  62 /**
  63  * Autodiscover request for Exchange Web Services
  64  * @param email (%s) Ex.: alice@cosmo.local
  65  */
  66 #define SIPE_EWS_AUTODISCOVER_REQUEST \
  67 "<?xml version=\"1.0\"?>"\
  68 "<Autodiscover xmlns=\"http://schemas.microsoft.com/exchange/autodiscover/outlook/requestschema/2006\">"\
  69   "<Request>"\
  70     "<EMailAddress>%s</EMailAddress>"\
  71     "<AcceptableResponseSchema>"\
  72       "http://schemas.microsoft.com/exchange/autodiscover/outlook/responseschema/2006a"\
  73     "</AcceptableResponseSchema>"\
  74   "</Request>"\
  75 "</Autodiscover>"
  76
  77 /**
  78  * GetUserOofSettingsRequest SOAP request to Exchange Web Services
  79  * to obtain our Out-of-office (OOF) information.
  80  * @param email (%s) Ex.: alice@cosmo.local
  81  */
  82 #define SIPE_EWS_USER_OOF_SETTINGS_REQUEST \
  83 "<?xml version=\"1.0\" encoding=\"utf-8\"?>"\
  84 "<soap:Envelope xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\" xmlns:xsd=\"http://www.w3.org/2001/XMLSchema\" xmlns:soap=\"http://schemas.xmlsoap.org/soap/envelope/\">"\
  85   "<soap:Body>"\
  86     "<GetUserOofSettingsRequest xmlns=\"http://schemas.microsoft.com/exchange/services/2006/messages\">"\
  87       "<Mailbox xmlns=\"http://schemas.microsoft.com/exchange/services/2006/types\">"\
  88         "<Address>%s</Address>"\
  89       "</Mailbox>"\
  90     "</GetUserOofSettingsRequest>"\
  91   "</soap:Body>"\
  92 "</soap:Envelope>"
  93
  94 /**
  95  * GetUserAvailabilityRequest SOAP request to Exchange Web Services
  96  * to obtain our Availability (FreeBusy, WorkingHours, Meetings) information.
  97  * @param email      (%s) Ex.: alice@cosmo.local
  98  * @param start_time (%s) Ex.: 2009-12-06T00:00:00
  99  * @param end_time   (%s) Ex.: 2009-12-09T23:59:59
 100  */
 101 #define SIPE_EWS_USER_AVAILABILITY_REQUEST \
 102 "<?xml version=\"1.0\" encoding=\"utf-8\"?>"\
 103 "<soap:Envelope xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\""\
 104               " xmlns:xsd=\"http://www.w3.org/2001/XMLSchema\""\
 105               " xmlns:soap=\"http://schemas.xmlsoap.org/soap/envelope/\""\
 106               " xmlns:t=\"http://schemas.microsoft.com/exchange/services/2006/types\">"\
 107   "<soap:Body>"\
 108     "<GetUserAvailabilityRequest xmlns=\"http://schemas.microsoft.com/exchange/services/2006/messages\""\
 109                 " xmlns:t=\"http://schemas.microsoft.com/exchange/services/2006/types\">"\
 110       "<t:TimeZone xmlns=\"http://schemas.microsoft.com/exchange/services/2006/types\">"\
 111         "<Bias>0</Bias>"\
 112         "<StandardTime>"\
 113           "<Bias>0</Bias>"\
 114           "<Time>00:00:00</Time>"\
 115           "<DayOrder>0</DayOrder>"\
 116           "<Month>0</Month>"\
 117           "<DayOfWeek>Sunday</DayOfWeek>"\
 118         "</StandardTime>"\
 119         "<DaylightTime>"\
 120           "<Bias>0</Bias>"\
 121           "<Time>00:00:00</Time>"\
 122           "<DayOrder>0</DayOrder>"\
 123           "<Month>0</Month>"\
 124           "<DayOfWeek>Sunday</DayOfWeek>"\
 125         "</DaylightTime>"\
 126       "</t:TimeZone>"\
 127       "<MailboxDataArray>"\
 128         "<t:MailboxData>"\
 129           "<t:Email>"\
 130             "<t:Address>%s</t:Address>"\
 131           "</t:Email>"\
 132           "<t:AttendeeType>Required</t:AttendeeType>"\
 133           "<t:ExcludeConflicts>false</t:ExcludeConflicts>"\
 134         "</t:MailboxData>"\
 135       "</MailboxDataArray>"\
 136       "<t:FreeBusyViewOptions>"\
 137         "<t:TimeWindow>"\
 138           "<t:StartTime>%s</t:StartTime>"\
 139           "<t:EndTime>%s</t:EndTime>"\
 140         "</t:TimeWindow>"\
 141         "<t:MergedFreeBusyIntervalInMinutes>15</t:MergedFreeBusyIntervalInMinutes>"\
 142         "<t:RequestedView>DetailedMerged</t:RequestedView>"\
 143       "</t:FreeBusyViewOptions>"\
 144     "</GetUserAvailabilityRequest>"\
 145   "</soap:Body>"\
 146 "</soap:Envelope>"
 147
 148 #define SIPE_EWS_STATE_NONE                      0
 149 #define SIPE_EWS_STATE_AUTODISCOVER_SUCCESS      1
 150 #define SIPE_EWS_STATE_AUTODISCOVER_1_FAILURE   -1
 151 #define SIPE_EWS_STATE_AUTODISCOVER_2_FAILURE   -2
 152 #define SIPE_EWS_STATE_AVAILABILITY_SUCCESS      3
 153 #define SIPE_EWS_STATE_AVAILABILITY_FAILURE     -3
 154 #define SIPE_EWS_STATE_OOF_SUCCESS               4
 155 #define SIPE_EWS_STATE_OOF_FAILURE              -4
 156
 157 char *
 158 sipe_ews_get_oof_note(struct sipe_calendar *cal)
 159 {
 160         time_t now = time(NULL);
 161
 162         if (!cal || !cal->oof_state) return NULL;
 163
 164         if (sipe_strequal(cal->oof_state, "Enabled") ||
 165             (sipe_strequal(cal->oof_state, "Scheduled") && now >= cal->oof_start && now <= cal->oof_end))
 166         {
 167                 return cal->oof_note;
 168         }
 169         else
 170         {
 171                 return NULL;
 172         }
 173 }
 174
 175 static void
 176 sipe_ews_run_state_machine(struct sipe_calendar *cal);
 177
 178 static void
 179 sipe_ews_process_avail_response(int return_code,
 180                                 const char *body,
 181                                 SIPE_UNUSED_PARAMETER GSList *headers,
 182                                 HttpConn *conn,
 183                                 void *data)
 184 {
 185         struct sipe_calendar *cal = data;
 186
 187         SIPE_DEBUG_INFO_NOFORMAT("sipe_ews_process_avail_response: cb started.");
 188
 189         if(!sipe_strequal(cal->as_url, cal->oof_url)) { /* whether reuse conn */
 190                 http_conn_set_close(conn);
 191                 cal->http_conn = NULL;
 192         }
 193
 194         if (return_code == 200 && body) {
 195                 const sipe_xml *node;
 196                 const sipe_xml *resp;
 197                 /** ref: [MS-OXWAVLS] */
 198                 sipe_xml *xml = sipe_xml_parse(body, strlen(body));
 199                 /*
 200 Envelope/Body/GetUserAvailabilityResponse/FreeBusyResponseArray/FreeBusyResponse/ResponseMessage@ResponseClass="Success"
 201 Envelope/Body/GetUserAvailabilityResponse/FreeBusyResponseArray/FreeBusyResponse/FreeBusyView/MergedFreeBusy
 202 Envelope/Body/GetUserAvailabilityResponse/FreeBusyResponseArray/FreeBusyResponse/FreeBusyView/CalendarEventArray/CalendarEvent
 203 Envelope/Body/GetUserAvailabilityResponse/FreeBusyResponseArray/FreeBusyResponse/FreeBusyView/WorkingHours
 204                  */
 205                 resp = sipe_xml_child(xml, "Body/GetUserAvailabilityResponse/FreeBusyResponseArray/FreeBusyResponse");
 206                 if (!resp) return; /* rather soap:Fault */
 207                 if (!sipe_strequal(sipe_xml_attribute(sipe_xml_child(resp, "ResponseMessage"), "ResponseClass"), "Success")) {
 208                         return; /* Error response */
 209                 }
 210
 211                 /* MergedFreeBusy */
 212                 g_free(cal->free_busy);
 213                 cal->free_busy = sipe_xml_data(sipe_xml_child(resp, "FreeBusyView/MergedFreeBusy"));
 214
 215                 /* WorkingHours */
 216                 node = sipe_xml_child(resp, "FreeBusyView/WorkingHours");
 217                 g_free(cal->working_hours_xml_str);
 218                 cal->working_hours_xml_str = sipe_xml_stringify(node);
 219                 SIPE_DEBUG_INFO("sipe_ews_process_avail_response: cal->working_hours_xml_str:\n%s",
 220                                 cal->working_hours_xml_str ? cal->working_hours_xml_str : "");
 221
 222                 sipe_cal_events_free(cal->cal_events);
 223                 cal->cal_events = NULL;
 224                 /* CalendarEvents */
 225                 for (node = sipe_xml_child(resp, "FreeBusyView/CalendarEventArray/CalendarEvent");
 226                      node;
 227                      node = sipe_xml_twin(node))
 228                 {
 229                         char *tmp;
 230 /*
 231       <CalendarEvent>
 232         <StartTime>2009-12-07T13:30:00</StartTime>
 233         <EndTime>2009-12-07T14:30:00</EndTime>
 234         <BusyType>Busy</BusyType>
 235         <CalendarEventDetails>
 236           <ID>0000000...</ID>
 237           <Subject>Lunch</Subject>
 238           <Location>Cafe</Location>
 239           <IsMeeting>false</IsMeeting>
 240           <IsRecurring>true</IsRecurring>
 241           <IsException>false</IsException>
 242           <IsReminderSet>true</IsReminderSet>
 243           <IsPrivate>false</IsPrivate>
 244         </CalendarEventDetails>
 245       </CalendarEvent>
 246 */
 247                         struct sipe_cal_event *cal_event = g_new0(struct sipe_cal_event, 1);
 248                         cal->cal_events = g_slist_append(cal->cal_events, cal_event);
 249
 250                         tmp = sipe_xml_data(sipe_xml_child(node, "StartTime"));
 251                         cal_event->start_time = sipe_utils_str_to_time(tmp);
 252                         g_free(tmp);
 253
 254                         tmp = sipe_xml_data(sipe_xml_child(node, "EndTime"));
 255                         cal_event->end_time = sipe_utils_str_to_time(tmp);
 256                         g_free(tmp);
 257
 258                         tmp = sipe_xml_data(sipe_xml_child(node, "BusyType"));
 259                         if (sipe_strequal("Free", tmp)) {
 260                                 cal_event->cal_status = SIPE_CAL_FREE;
 261                         } else if (sipe_strequal("Tentative", tmp)) {
 262                                 cal_event->cal_status = SIPE_CAL_TENTATIVE;
 263                         } else if (sipe_strequal("Busy", tmp)) {
 264                                 cal_event->cal_status = SIPE_CAL_BUSY;
 265                         } else if (sipe_strequal("OOF", tmp)) {
 266                                 cal_event->cal_status = SIPE_CAL_OOF;
 267                         } else {
 268                                 cal_event->cal_status = SIPE_CAL_NO_DATA;
 269                         }
 270                         g_free(tmp);
 271
 272                         cal_event->subject = sipe_xml_data(sipe_xml_child(node, "CalendarEventDetails/Subject"));
 273                         cal_event->location = sipe_xml_data(sipe_xml_child(node, "CalendarEventDetails/Location"));
 274
 275                         tmp = sipe_xml_data(sipe_xml_child(node, "CalendarEventDetails/IsMeeting"));
 276                         cal_event->is_meeting = tmp ? sipe_strequal(tmp, "true") : TRUE;
 277                         g_free(tmp);
 278                 }
 279
 280                 sipe_xml_free(xml);
 281
 282                 cal->state = SIPE_EWS_STATE_AVAILABILITY_SUCCESS;
 283                 sipe_ews_run_state_machine(cal);
 284
 285         } else {
 286                 if (return_code < 0) {
 287                         cal->http_conn = NULL;
 288                 }
 289                 cal->state = SIPE_EWS_STATE_AVAILABILITY_FAILURE;
 290                 sipe_ews_run_state_machine(cal);
 291         }
 292 }
 293
 294 static void
 295 sipe_ews_process_oof_response(int return_code,
 296                               const char *body,
 297                               SIPE_UNUSED_PARAMETER GSList *headers,
 298                               HttpConn *conn,
 299                               void *data)
 300 {
 301         struct sipe_calendar *cal = data;
 302
 303         SIPE_DEBUG_INFO_NOFORMAT("sipe_ews_process_oof_response: cb started.");
 304
 305         http_conn_set_close(conn);
 306         cal->http_conn = NULL;
 307
 308         if (return_code == 200 && body) {
 309                 char *old_note;
 310                 const sipe_xml *resp;
 311                 const sipe_xml *xn_duration;
 312                 /** ref: [MS-OXWOOF] */
 313                 sipe_xml *xml = sipe_xml_parse(body, strlen(body));
 314                 /* Envelope/Body/GetUserOofSettingsResponse/ResponseMessage@ResponseClass="Success"
 315                  * Envelope/Body/GetUserOofSettingsResponse/OofSettings/OofState=Enabled
 316                  * Envelope/Body/GetUserOofSettingsResponse/OofSettings/Duration/StartTime
 317                  * Envelope/Body/GetUserOofSettingsResponse/OofSettings/Duration/EndTime
 318                  * Envelope/Body/GetUserOofSettingsResponse/OofSettings/InternalReply/Message
 319                  */
 320                 resp = sipe_xml_child(xml, "Body/GetUserOofSettingsResponse");
 321                 if (!resp) return; /* rather soap:Fault */
 322                 if (!sipe_strequal(sipe_xml_attribute(sipe_xml_child(resp, "ResponseMessage"), "ResponseClass"), "Success")) {
 323                         return; /* Error response */
 324                 }
 325
 326                 g_free(cal->oof_state);
 327                 cal->oof_state = sipe_xml_data(sipe_xml_child(resp, "OofSettings/OofState"));
 328
 329                 old_note = cal->oof_note;
 330                 cal->oof_note = NULL;
 331                 if (!sipe_strequal(cal->oof_state, "Disabled")) {
 332                         char *tmp = sipe_xml_data(
 333                                 sipe_xml_child(resp, "OofSettings/InternalReply/Message"));
 334                         char *html;
 335
 336                         /* UTF-8 encoded BOM (0xEF 0xBB 0xBF) as a signature to mark the beginning of a UTF-8 file */
 337                         if (g_str_has_prefix(tmp, "\xEF\xBB\xBF")) {
 338                                 html = g_strdup(tmp+3);
 339                         } else {
 340                                 html = g_strdup(tmp);
 341                         }
 342                         g_free(tmp);
 343                         tmp = g_strstrip(sipe_backend_markup_strip_html(html));
 344                         g_free(html);
 345                         cal->oof_note = g_markup_escape_text(tmp, -1);
 346                         g_free(tmp);
 347                 }
 348
 349                 if (sipe_strequal(cal->oof_state, "Scheduled")
 350                     && (xn_duration = sipe_xml_child(resp, "OofSettings/Duration")))
 351                 {
 352                         char *tmp = sipe_xml_data(sipe_xml_child(xn_duration, "StartTime"));
 353                         cal->oof_start = sipe_utils_str_to_time(tmp);
 354                         g_free(tmp);
 355
 356                         tmp = sipe_xml_data(sipe_xml_child(xn_duration, "EndTime"));
 357                         cal->oof_end = sipe_utils_str_to_time(tmp);
 358                         g_free(tmp);
 359                 }
 360
 361                 if (!sipe_strequal(old_note, cal->oof_note)) { /* oof note changed */
 362                         cal->updated = time(NULL);
 363                         cal->published = FALSE;
 364                 }
 365                 g_free(old_note);
 366
 367                 sipe_xml_free(xml);
 368
 369                 cal->state = SIPE_EWS_STATE_OOF_SUCCESS;
 370                 sipe_ews_run_state_machine(cal);
 371
 372         } else {
 373                 if (return_code < 0) {
 374                         cal->http_conn = NULL;
 375                 }
 376                 cal->state = SIPE_EWS_STATE_OOF_FAILURE;
 377                 sipe_ews_run_state_machine(cal);
 378         }
 379 }
 380
 381 static void
 382 sipe_ews_process_autodiscover(int return_code,
 383                               const char *body,
 384                               SIPE_UNUSED_PARAMETER GSList *headers,
 385                               HttpConn *conn,
 386                               void *data)
 387 {
 388         struct sipe_calendar *cal = data;
 389
 390         SIPE_DEBUG_INFO_NOFORMAT("sipe_ews_process_autodiscover: cb started.");
 391
 392         http_conn_set_close(conn);
 393         cal->http_conn = NULL;
 394
 395         if (return_code == 200 && body) {
 396                 const sipe_xml *node;
 397                 /** ref: [MS-OXDSCLI] */
 398                 sipe_xml *xml = sipe_xml_parse(body, strlen(body));
 399
 400                 /* Autodiscover/Response/User/LegacyDN (trim()) */
 401                 cal->legacy_dn = sipe_xml_data(sipe_xml_child(xml, "Response/User/LegacyDN"));
 402                 cal->legacy_dn = cal->legacy_dn ? g_strstrip(cal->legacy_dn) : NULL;
 403
 404                 /* Protocols */
 405                 for (node = sipe_xml_child(xml, "Response/Account/Protocol");
 406                      node;
 407                      node = sipe_xml_twin(node))
 408                 {
 409                         char *type = sipe_xml_data(sipe_xml_child(node, "Type"));
 410                         if (sipe_strequal("EXCH", type)) {
 411                                 cal->as_url  = sipe_xml_data(sipe_xml_child(node, "ASUrl"));
 412                                 cal->oof_url = sipe_xml_data(sipe_xml_child(node, "OOFUrl"));
 413                                 cal->oab_url = sipe_xml_data(sipe_xml_child(node, "OABUrl"));
 414
 415                                 SIPE_DEBUG_INFO("sipe_ews_process_autodiscover:as_url %s",
 416                                                 cal->as_url ? cal->as_url : "");
 417                                 SIPE_DEBUG_INFO("sipe_ews_process_autodiscover:oof_url %s",
 418                                                 cal->oof_url ? cal->oof_url : "");
 419                                 SIPE_DEBUG_INFO("sipe_ews_process_autodiscover:oab_url %s",
 420                                                 cal->oab_url ? cal->oab_url : "");
 421
 422                                 g_free(type);
 423                                 break;
 424                         } else {
 425                                 g_free(type);
 426                                 continue;
 427                         }
 428                 }
 429
 430                 sipe_xml_free(xml);
 431
 432                 cal->state = SIPE_EWS_STATE_AUTODISCOVER_SUCCESS;
 433                 sipe_ews_run_state_machine(cal);
 434
 435         } else {
 436                 if (return_code < 0) {
 437                         cal->http_conn = NULL;
 438                 }
 439                 switch (cal->auto_disco_method) {
 440                         case 1:
 441                                 cal->state = SIPE_EWS_STATE_AUTODISCOVER_1_FAILURE; break;
 442                         case 2:
 443                                 cal->state = SIPE_EWS_STATE_AUTODISCOVER_2_FAILURE; break;
 444                 }
 445                 sipe_ews_run_state_machine(cal);
 446         }
 447 }
 448
 449 static void
 450 sipe_ews_do_autodiscover(struct sipe_calendar *cal,
 451                          const char* autodiscover_url)
 452 {
 453         char *body;
 454
 455         SIPE_DEBUG_INFO("sipe_ews_do_autodiscover: going autodiscover url=%s", autodiscover_url ? autodiscover_url : "");
 456
 457         body = g_strdup_printf(SIPE_EWS_AUTODISCOVER_REQUEST, cal->email);
 458         cal->http_conn = http_conn_create(
 459                                  (struct sipe_core_public *) cal->sipe_private,
 460                                  NULL, /* HttpSession */
 461                                  HTTP_CONN_POST,
 462                                  HTTP_CONN_SSL,
 463                                  HTTP_CONN_ALLOW_REDIRECT,
 464                                  autodiscover_url,
 465                                  body,
 466                                  "text/xml",
 467                                  NULL,
 468                                  cal->auth,
 469                                  sipe_ews_process_autodiscover,
 470                                  cal);
 471         g_free(body);
 472 }
 473
 474 static void
 475 sipe_ews_do_avail_request(struct sipe_calendar *cal)
 476 {
 477         if (cal->as_url) {
 478                 char *body;
 479                 time_t end;
 480                 time_t now = time(NULL);
 481                 char *start_str;
 482                 char *end_str;
 483                 struct tm *now_tm;
 484
 485                 SIPE_DEBUG_INFO_NOFORMAT("sipe_ews_do_avail_request: going Availability req.");
 486
 487                 now_tm = gmtime(&now);
 488                 /* start -1 day, 00:00:00 */
 489                 now_tm->tm_sec = 0;
 490                 now_tm->tm_min = 0;
 491                 now_tm->tm_hour = 0;
 492                 cal->fb_start = sipe_mktime_tz(now_tm, "UTC");
 493                 cal->fb_start -= 24*60*60;
 494                 /* end = start + 4 days - 1 sec */
 495                 end = cal->fb_start + SIPE_FREE_BUSY_PERIOD_SEC - 1;
 496
 497                 start_str = sipe_utils_time_to_str(cal->fb_start);
 498                 end_str = sipe_utils_time_to_str(end);
 499
 500                 body = g_strdup_printf(SIPE_EWS_USER_AVAILABILITY_REQUEST, cal->email, start_str, end_str);
 501                 cal->http_conn = http_conn_create(
 502                                          (struct sipe_core_public *) cal->sipe_private,
 503                                          NULL, /* HttpSession */
 504                                          HTTP_CONN_POST,
 505                                          HTTP_CONN_SSL,
 506                                          HTTP_CONN_ALLOW_REDIRECT,
 507                                          cal->as_url,
 508                                          body,
 509                                          "text/xml; charset=UTF-8",
 510                                          NULL,
 511                                          cal->auth,
 512                                          sipe_ews_process_avail_response,
 513                                          cal);
 514                 g_free(body);
 515                 g_free(start_str);
 516                 g_free(end_str);
 517         }
 518 }
 519
 520 static void
 521 sipe_ews_do_oof_request(struct sipe_calendar *cal)
 522 {
 523         if (cal->oof_url) {
 524                 char *body;
 525                 const char *content_type = "text/xml; charset=UTF-8";
 526
 527                 SIPE_DEBUG_INFO_NOFORMAT("sipe_ews_do_oof_request: going OOF req.");
 528
 529                 body = g_strdup_printf(SIPE_EWS_USER_OOF_SETTINGS_REQUEST, cal->email);
 530                 if (!cal->http_conn || http_conn_is_closed(cal->http_conn)) {
 531                         cal->http_conn = http_conn_create((struct sipe_core_public *)cal->sipe_private,
 532                                                           NULL, /* HttpSession */
 533                                                           HTTP_CONN_POST,
 534                                                           HTTP_CONN_SSL,
 535                                                           HTTP_CONN_ALLOW_REDIRECT,
 536                                                           cal->oof_url,
 537                                                           body,
 538                                                           content_type,
 539                                                           NULL,
 540                                                           cal->auth,
 541                                                           sipe_ews_process_oof_response,
 542                                                           cal);
 543                 } else {
 544                         http_conn_send(cal->http_conn,
 545                                        HTTP_CONN_POST,
 546                                        cal->oof_url,
 547                                        body,
 548                                        content_type,
 549                                        sipe_ews_process_oof_response,
 550                                        cal);
 551                 }
 552                 g_free(body);
 553         }
 554 }
 555
 556 static void
 557 sipe_ews_run_state_machine(struct sipe_calendar *cal)
 558 {
 559         switch (cal->state) {
 560                 case SIPE_EWS_STATE_NONE:
 561                         {
 562                                 char *maildomain = strstr(cal->email, "@") + 1;
 563                                 char *autodisc_url = g_strdup_printf("https://Autodiscover.%s/Autodiscover/Autodiscover.xml", maildomain);
 564
 565                                 cal->auto_disco_method = 1;
 566
 567                                 sipe_ews_do_autodiscover(cal, autodisc_url);
 568
 569                                 g_free(autodisc_url);
 570                                 break;
 571                         }
 572                 case SIPE_EWS_STATE_AUTODISCOVER_1_FAILURE:
 573                         {
 574                                 char *maildomain = strstr(cal->email, "@") + 1;
 575                                 char *autodisc_url = g_strdup_printf("https://%s/Autodiscover/Autodiscover.xml", maildomain);
 576
 577                                 cal->auto_disco_method = 2;
 578
 579                                 sipe_ews_do_autodiscover(cal, autodisc_url);
 580
 581                                 g_free(autodisc_url);
 582                                 break;
 583                         }
 584                 case SIPE_EWS_STATE_AUTODISCOVER_2_FAILURE:
 585                 case SIPE_EWS_STATE_AVAILABILITY_FAILURE:
 586                 case SIPE_EWS_STATE_OOF_FAILURE:
 587                         cal->is_ews_disabled = TRUE;
 588                         break;
 589                 case SIPE_EWS_STATE_AUTODISCOVER_SUCCESS:
 590                         sipe_ews_do_avail_request(cal);
 591                         break;
 592                 case SIPE_EWS_STATE_AVAILABILITY_SUCCESS:
 593                         sipe_ews_do_oof_request(cal);
 594                         break;
 595                 case SIPE_EWS_STATE_OOF_SUCCESS:
 596                 {
 597                         struct sipe_core_private *sipe_private = cal->sipe_private;
 598
 599                         cal->state = SIPE_EWS_STATE_AUTODISCOVER_SUCCESS;
 600                         cal->is_updated = TRUE;
 601                         sipe_cal_presence_publish(sipe_private, TRUE);
 602                         break;
 603                 }
 604         }
 605 }
 606
 607 void
 608 sipe_ews_update_calendar(struct sipe_core_private *sipe_private)
 609 {
 610         //char *autodisc_srv = g_strdup_printf("_autodiscover._tcp.%s", maildomain);
 611         gboolean has_url;
 612
 613         SIPE_DEBUG_INFO_NOFORMAT("sipe_ews_update_calendar: started.");
 614
 615         if (sipe_cal_calendar_init(sipe_private, &has_url)) {
 616                 if (has_url) {
 617                         sipe_private->calendar->state = SIPE_EWS_STATE_AUTODISCOVER_SUCCESS;
 618                 }
 619         }
 620
 621         if (sipe_private->calendar->is_ews_disabled) {
 622                 SIPE_DEBUG_INFO_NOFORMAT("sipe_ews_update_calendar: disabled, exiting.");
 623                 return;
 624         }
 625
 626         sipe_ews_run_state_machine(sipe_private->calendar);
 627
 628         SIPE_DEBUG_INFO_NOFORMAT("sipe_ews_update_calendar: finished.");
 629 }
 630
 631
 632
 633 /*
 634   Local Variables:
 635   mode: c
 636   c-file-style: "bsd"
 637   indent-tabs-mode: t
 638   tab-width: 8
 639   End:
 640 */