ucs: initialize & destroy UCS data structure

[siplcs.git] / src / core / sipe-notify.c

/**
 * @file sipe-notify.c
 *
 * pidgin-sipe
 *
 * Copyright (C) 2011-2013 SIPE Project <http://sipe.sourceforge.net/>
 *
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 *
 * Process incoming SIP NOTIFY/BENOTIFY messages
 *
 */

#ifdef HAVE_CONFIG_H
#include "config.h"
#endif

#include <stdlib.h>
#include <string.h>

#include <glib.h>

#include "sipe-common.h"
#include "sipmsg.h"
#include "sip-csta.h"
#include "sip-soap.h"
#include "sipe-backend.h"
#include "sipe-buddy.h"
#include "sipe-cal.h"
#include "sipe-conf.h"
#include "sipe-core.h"
#include "sipe-core-private.h"
#include "sipe-group.h"
#include "sipe-groupchat.h"
#include "sipe-media.h"
#include "sipe-mime.h"
#include "sipe-nls.h"
#include "sipe-notify.h"
#include "sipe-ocs2005.h"
#include "sipe-ocs2007.h"
#include "sipe-schedule.h"
#include "sipe-status.h"
#include "sipe-subscriptions.h"
#include "sipe-ucs.h"
#include "sipe-utils.h"
#include "sipe-xml.h"

/* OCS2005 */
static void sipe_process_provisioning(struct sipe_core_private *sipe_private,
                                      struct sipmsg *msg)
{
        sipe_xml *xn_provision;
        const sipe_xml *node;

        xn_provision = sipe_xml_parse(msg->body, msg->bodylen);
        if ((node = sipe_xml_child(xn_provision, "user"))) {
                SIPE_DEBUG_INFO("sipe_process_provisioning: uri=%s", sipe_xml_attribute(node, "uri"));
                if ((node = sipe_xml_child(node, "line"))) {
                        const gchar *line_uri = sipe_xml_attribute(node, "uri");
                        const gchar *server = sipe_xml_attribute(node, "server");
                        SIPE_DEBUG_INFO("sipe_process_provisioning: line_uri=%s server=%s", line_uri, server);
                        sip_csta_open(sipe_private, line_uri, server);
                }
        }
        sipe_xml_free(xn_provision);
}

/* OCS2007+ */
static void sipe_process_provisioning_v2(struct sipe_core_private *sipe_private,
                                         struct sipmsg *msg)
{
        sipe_xml *xn_provision_group_list;
        const sipe_xml *node;

        xn_provision_group_list = sipe_xml_parse(msg->body, msg->bodylen);

        /* provisionGroup */
        for (node = sipe_xml_child(xn_provision_group_list, "provisionGroup");
             node;
             node = sipe_xml_twin(node)) {
                const gchar *node_name = sipe_xml_attribute(node, "name");

                /* ServerConfiguration */
                if (sipe_strequal("ServerConfiguration", node_name)) {
                        const gchar *dlx_uri_str = SIPE_CORE_PRIVATE_FLAG_IS(REMOTE_USER) ?
                                        "dlxExternalUrl" : "dlxInternalUrl";
                        const gchar *addressbook_uri_str = SIPE_CORE_PRIVATE_FLAG_IS(REMOTE_USER) ?
                                        "absExternalServerUrl" : "absInternalServerUrl";

                        g_free(sipe_private->focus_factory_uri);
                        sipe_private->focus_factory_uri = sipe_xml_data(sipe_xml_child(node, "focusFactoryUri"));
                        SIPE_DEBUG_INFO("sipe_process_provisioning_v2: sipe_private->focus_factory_uri=%s",
                                        sipe_private->focus_factory_uri ? sipe_private->focus_factory_uri : "");

                        g_free(sipe_private->dlx_uri);
                        sipe_private->dlx_uri = sipe_xml_data(sipe_xml_child(node, dlx_uri_str));
                        SIPE_DEBUG_INFO("sipe_process_provisioning_v2: sipe_private->dlx_uri=%s",
                                        sipe_private->dlx_uri ? sipe_private->dlx_uri : "");

                        g_free(sipe_private->addressbook_uri);
                        sipe_private->addressbook_uri = sipe_xml_data(sipe_xml_child(node, addressbook_uri_str));
                        SIPE_DEBUG_INFO("sipe_process_provisioning_v2: sipe_private->addressbook_uri=%s",
                                        sipe_private->addressbook_uri ? sipe_private->addressbook_uri : "");

#ifdef HAVE_VV
                        g_free(sipe_private->test_call_bot_uri);
                        sipe_private->test_call_bot_uri = sipe_xml_data(sipe_xml_child(node, "botSipUriForTestCall"));
                        SIPE_DEBUG_INFO("sipe_process_provisioning_v2: sipe_private->test_call_bot_uri=%s",
                                        sipe_private->test_call_bot_uri ? sipe_private->test_call_bot_uri : "");

                        g_free(sipe_private->mras_uri);
                        sipe_private->mras_uri = g_strstrip(sipe_xml_data(sipe_xml_child(node, "mrasUri")));
                        SIPE_DEBUG_INFO("sipe_process_provisioning_v2: sipe_private->mras_uri=%s",
                                        sipe_private->mras_uri ? sipe_private->mras_uri : "");

                        if (sipe_private->mras_uri)
                                        sipe_media_get_av_edge_credentials(sipe_private);
#endif

                /* persistentChatConfiguration */
                } else if (sipe_strequal("persistentChatConfiguration", node_name)) {
                        const sipe_xml *property;
                        gboolean enabled = FALSE;
                        gchar *uri = NULL;

                        for (property = sipe_xml_child(node, "propertyEntryList/property");
                             property;
                             property = sipe_xml_twin(property)) {
                                const gchar *name = sipe_xml_attribute(property, "name");
                                gchar *value = sipe_xml_data(property);

                                if (sipe_strequal(name, "EnablePersistentChat")) {
                                        enabled = sipe_strequal(value, "true");

                                } else if (sipe_strequal(name, "DefaultPersistentChatPoolUri")) {
                                        g_free(uri);
                                        uri = value;
                                        value = NULL;
                                }
                                g_free(value);
                        }

                        if (enabled) {
                                g_free(sipe_private->persistentChatPool_uri);
                                sipe_private->persistentChatPool_uri = g_strdup(sipe_get_no_sip_uri(uri));
                                SIPE_DEBUG_INFO("sipe_process_provisioning_v2: sipe_private->persistentChatPool_uri=%s",
                                                sipe_private->persistentChatPool_uri ? sipe_private->persistentChatPool_uri : "");
                        }
                        g_free(uri);
                }

        }
        sipe_xml_free(xn_provision_group_list);

        if (sipe_private->dlx_uri && sipe_private->addressbook_uri) {
                /* Some buddies might have been added before we received this
                 * provisioning notify with DLX and addressbook URIs. Now we can
                 * trigger an update of their photos. */
                sipe_buddy_refresh_photos(sipe_private);
        }

        if (SIPE_CORE_PRIVATE_FLAG_IS(OCS2007))
                /* persistentChatPool_uri has been set at this point */
                sipe_groupchat_init(sipe_private);
}

static void process_incoming_notify_rlmi_resub(struct sipe_core_private *sipe_private,
                                               const gchar *data, unsigned len)
{
        sipe_xml *xn_list;
        const sipe_xml *xn_resource;
        GHashTable *servers = g_hash_table_new_full(g_str_hash, g_str_equal,
                                                    g_free, NULL);

        xn_list = sipe_xml_parse(data, len);

        for (xn_resource = sipe_xml_child(xn_list, "resource");
             xn_resource;
             xn_resource = sipe_xml_twin(xn_resource) )
        {
                const char *uri, *state;
                const sipe_xml *xn_instance;

                xn_instance = sipe_xml_child(xn_resource, "instance");
                if (!xn_instance) continue;

                uri = sipe_xml_attribute(xn_resource, "uri");
                state = sipe_xml_attribute(xn_instance, "state");
                SIPE_DEBUG_INFO("process_incoming_notify_rlmi_resub: uri(%s),state(%s)", uri, state);

                if (strstr(state, "resubscribe")) {
                        const char *poolFqdn = sipe_xml_attribute(xn_instance, "poolFqdn");

                        if (poolFqdn) { //[MS-PRES] Section 3.4.5.1.3 Processing Details
                                gchar *user    = g_strdup(uri);
                                gchar *host    = g_strdup(poolFqdn);
                                GSList *server = g_hash_table_lookup(servers,
                                                                     host);
                                server = g_slist_append(server, user);
                                g_hash_table_insert(servers, host, server);
                        } else {
                                sipe_subscribe_presence_single(sipe_private,
                                                               uri,
                                                               uri);
                        }
                }
        }

        /* Send out any deferred poolFqdn subscriptions */
        g_hash_table_foreach(servers, (GHFunc) sipe_subscribe_poolfqdn_resource_uri, sipe_private);
        g_hash_table_destroy(servers);

        sipe_xml_free(xn_list);
}

/**
 * Update user phone
 * Suitable for both 2005 and 2007 systems.
 *
 * @param uri                   buddy SIP URI with 'sip:' prefix whose info we want to change.
 * @param phone_type
 * @param phone                 may be modified to strip white space
 * @param phone_display_string  may be modified to strip white space
 */
static void
sipe_update_user_phone(struct sipe_core_private *sipe_private,
                       const gchar *uri,
                       const gchar *phone_type,
                       gchar *phone,
                       gchar *phone_display_string)
{
        sipe_buddy_info_fields phone_node = SIPE_BUDDY_INFO_WORK_PHONE; /* work phone by default */
        sipe_buddy_info_fields phone_display_node = SIPE_BUDDY_INFO_WORK_PHONE_DISPLAY; /* work phone by default */

        if(!phone || strlen(phone) == 0) return;

        if ((sipe_strequal(phone_type, "mobile") ||  sipe_strequal(phone_type, "cell"))) {
                phone_node = SIPE_BUDDY_INFO_MOBILE_PHONE;
                phone_display_node = SIPE_BUDDY_INFO_MOBILE_PHONE_DISPLAY;
        } else if (sipe_strequal(phone_type, "home")) {
                phone_node = SIPE_BUDDY_INFO_HOME_PHONE;
                phone_display_node = SIPE_BUDDY_INFO_HOME_PHONE_DISPLAY;
        } else if (sipe_strequal(phone_type, "other")) {
                phone_node = SIPE_BUDDY_INFO_OTHER_PHONE;
                phone_display_node = SIPE_BUDDY_INFO_OTHER_PHONE_DISPLAY;
        } else if (sipe_strequal(phone_type, "custom1")) {
                phone_node = SIPE_BUDDY_INFO_CUSTOM1_PHONE;
                phone_display_node = SIPE_BUDDY_INFO_CUSTOM1_PHONE_DISPLAY;
        }

        sipe_buddy_update_property(sipe_private, uri, phone_node, phone);
        if (phone_display_string) {
                sipe_buddy_update_property(sipe_private, uri, phone_display_node, phone_display_string);
        }
}

static void process_incoming_notify_msrtc(struct sipe_core_private *sipe_private,
                                          const gchar *data,
                                          unsigned len)
{
        char *activity = NULL;
        const char *epid;
        const char *status_id = NULL;
        const char *name;
        char *uri;
        char *self_uri = sip_uri_self(sipe_private);
        int avl;
        int act;
        const char *device_name = NULL;
        const char *cal_start_time = NULL;
        const char *cal_granularity = NULL;
        char *cal_free_busy_base64 = NULL;
        struct sipe_buddy *sbuddy;
        const sipe_xml *node;
        sipe_xml *xn_presentity;
        const sipe_xml *xn_availability;
        const sipe_xml *xn_activity;
        const sipe_xml *xn_display_name;
        const sipe_xml *xn_email;
        const sipe_xml *xn_phone_number;
        const sipe_xml *xn_userinfo;
        const sipe_xml *xn_note;
        const sipe_xml *xn_oof;
        const sipe_xml *xn_state;
        const sipe_xml *xn_contact;
        char *note;
        int user_avail;
        const char *user_avail_nil;
        int res_avail;
        time_t user_avail_since = 0;
        time_t activity_since = 0;

        /* fix for Reuters environment on Linux */
        if (data && strstr(data, "encoding=\"utf-16\"")) {
                char *tmp_data;
                tmp_data = replace(data, "encoding=\"utf-16\"", "encoding=\"utf-8\"");
                xn_presentity = sipe_xml_parse(tmp_data, strlen(tmp_data));
                g_free(tmp_data);
        } else {
                xn_presentity = sipe_xml_parse(data, len);
        }

        xn_availability = sipe_xml_child(xn_presentity, "availability");
        xn_activity = sipe_xml_child(xn_presentity, "activity");
        xn_display_name = sipe_xml_child(xn_presentity, "displayName");
        xn_email = sipe_xml_child(xn_presentity, "email");
        xn_phone_number = sipe_xml_child(xn_presentity, "phoneNumber");
        xn_userinfo = sipe_xml_child(xn_presentity, "userInfo");
        xn_oof = xn_userinfo ? sipe_xml_child(xn_userinfo, "oof") : NULL;
        xn_state = xn_userinfo ? sipe_xml_child(xn_userinfo, "states/state"): NULL;
        user_avail = xn_state ? sipe_xml_int_attribute(xn_state, "avail", 0) : 0;
        user_avail_since = xn_state ? sipe_utils_str_to_time(sipe_xml_attribute(xn_state, "since")) : 0;
        user_avail_nil = xn_state ? sipe_xml_attribute(xn_state, "nil") : NULL;
        xn_contact = xn_userinfo ? sipe_xml_child(xn_userinfo, "contact") : NULL;
        xn_note = xn_userinfo ? sipe_xml_child(xn_userinfo, "note") : NULL;
        note = xn_note ? sipe_xml_data(xn_note) : NULL;

        if (sipe_strequal(user_avail_nil, "true")) {    /* null-ed */
                user_avail = 0;
                user_avail_since = 0;
        }

        name = sipe_xml_attribute(xn_presentity, "uri"); /* without 'sip:' prefix */
        uri = sip_uri_from_name(name);
        avl = sipe_xml_int_attribute(xn_availability, "aggregate", 0);
        epid = sipe_xml_attribute(xn_availability, "epid");
        act = sipe_xml_int_attribute(xn_activity, "aggregate", 0);

        status_id = sipe_ocs2005_status_from_activity_availability(act, avl);
        activity = g_strdup(sipe_ocs2005_activity_description(act));
        res_avail = sipe_ocs2007_availability_from_status(status_id, NULL);
        if (user_avail > res_avail) {
                res_avail = user_avail;
                status_id = sipe_ocs2007_status_from_legacy_availability(user_avail, NULL);
        }

        if (xn_display_name) {
                char *display_name = g_strdup(sipe_xml_attribute(xn_display_name, "displayName"));
                char *email        = xn_email ? g_strdup(sipe_xml_attribute(xn_email, "email")) : NULL;
                char *phone_label  = xn_phone_number ? g_strdup(sipe_xml_attribute(xn_phone_number, "label")) : NULL;
                char *phone_number = xn_phone_number ? g_strdup(sipe_xml_attribute(xn_phone_number, "number")) : NULL;
                char *tel_uri      = sip_to_tel_uri(phone_number);

                sipe_buddy_update_property(sipe_private, uri, SIPE_BUDDY_INFO_DISPLAY_NAME, display_name);
                sipe_buddy_update_property(sipe_private, uri, SIPE_BUDDY_INFO_EMAIL, email);
                sipe_buddy_update_property(sipe_private, uri, SIPE_BUDDY_INFO_WORK_PHONE, tel_uri);
                sipe_buddy_update_property(sipe_private, uri, SIPE_BUDDY_INFO_WORK_PHONE_DISPLAY, !is_empty(phone_label) ? phone_label : phone_number);

                g_free(tel_uri);
                g_free(phone_label);
                g_free(phone_number);
                g_free(email);
                g_free(display_name);
        }

        if (xn_contact) {
                /* tel */
                for (node = sipe_xml_child(xn_contact, "tel"); node; node = sipe_xml_twin(node))
                {
                        /* Ex.: <tel type="work">tel:+3222220000</tel> */
                        const char *phone_type = sipe_xml_attribute(node, "type");
                        char* phone = sipe_xml_data(node);

                        sipe_update_user_phone(sipe_private, uri, phone_type, phone, NULL);

                        g_free(phone);
                }
        }

        if (xn_display_name || xn_contact)
                sipe_backend_buddy_refresh_properties(SIPE_CORE_PUBLIC, uri);

        /* devicePresence */
        for (node = sipe_xml_child(xn_presentity, "devices/devicePresence"); node; node = sipe_xml_twin(node)) {
                const sipe_xml *xn_device_name;
                const sipe_xml *xn_calendar_info;
                const sipe_xml *xn_state;
                char *state;

                /* deviceName */
                if (sipe_strequal(sipe_xml_attribute(node, "epid"), epid)) {
                        xn_device_name = sipe_xml_child(node, "deviceName");
                        device_name = xn_device_name ? sipe_xml_attribute(xn_device_name, "name") : NULL;
                }

                /* calendarInfo */
                xn_calendar_info = sipe_xml_child(node, "calendarInfo");
                if (xn_calendar_info) {
                        const char *cal_start_time_tmp = sipe_xml_attribute(xn_calendar_info, "startTime");

                        if (cal_start_time) {
                                time_t cal_start_time_t     = sipe_utils_str_to_time(cal_start_time);
                                time_t cal_start_time_t_tmp = sipe_utils_str_to_time(cal_start_time_tmp);

                                if (cal_start_time_t_tmp > cal_start_time_t) {
                                        cal_start_time = cal_start_time_tmp;
                                        cal_granularity = sipe_xml_attribute(xn_calendar_info, "granularity");
                                        g_free(cal_free_busy_base64);
                                        cal_free_busy_base64 = sipe_xml_data(xn_calendar_info);

                                        SIPE_DEBUG_INFO("process_incoming_notify_msrtc: startTime=%s granularity=%s cal_free_busy_base64=\n%s", cal_start_time, cal_granularity, cal_free_busy_base64);
                                }
                        } else {
                                cal_start_time = cal_start_time_tmp;
                                cal_granularity = sipe_xml_attribute(xn_calendar_info, "granularity");
                                g_free(cal_free_busy_base64);
                                cal_free_busy_base64 = sipe_xml_data(xn_calendar_info);

                                SIPE_DEBUG_INFO("process_incoming_notify_msrtc: startTime=%s granularity=%s cal_free_busy_base64=\n%s", cal_start_time, cal_granularity, cal_free_busy_base64);
                        }
                }

                /* state */
                xn_state = sipe_xml_child(node, "states/state");
                if (xn_state) {
                        int dev_avail = sipe_xml_int_attribute(xn_state, "avail", 0);
                        time_t dev_avail_since = sipe_utils_str_to_time(sipe_xml_attribute(xn_state, "since"));

                        state = sipe_xml_data(xn_state);
                        if (dev_avail_since > user_avail_since &&
                            dev_avail >= res_avail)
                        {
                                const gchar *new_desc;
                                res_avail = dev_avail;
                                if (!is_empty(state)) {
                                        if (sipe_strequal(state, sipe_status_activity_to_token(SIPE_ACTIVITY_ON_PHONE))) {
                                                g_free(activity);
                                                activity = g_strdup(sipe_core_activity_description(SIPE_ACTIVITY_ON_PHONE));
                                        } else if (sipe_strequal(state, "presenting")) {
                                                g_free(activity);
                                                activity = g_strdup(sipe_core_activity_description(SIPE_ACTIVITY_IN_CONF));
                                        } else {
                                                activity = state;
                                                state = NULL;
                                        }
                                        activity_since = dev_avail_since;
                                }
                                status_id = sipe_ocs2007_status_from_legacy_availability(res_avail, NULL);
                                new_desc  = sipe_ocs2007_legacy_activity_description(res_avail);
                                if (new_desc) {
                                        g_free(activity);
                                        activity = g_strdup(new_desc);
                                }
                        }
                        g_free(state);
                }
        }

        /* oof */
        if (xn_oof && res_avail >= 15000) { /* 12000 in 2007 */
                g_free(activity);
                activity = g_strdup(sipe_core_activity_description(SIPE_ACTIVITY_OOF));
                activity_since = 0;
        }

        sbuddy = g_hash_table_lookup(sipe_private->buddies, uri);
        if (sbuddy)
        {
                g_free(sbuddy->activity);
                sbuddy->activity = activity;
                activity = NULL;

                sbuddy->activity_since = activity_since;

                sbuddy->user_avail = user_avail;
                sbuddy->user_avail_since = user_avail_since;

                g_free(sbuddy->note);
                sbuddy->note = NULL;
                if (!is_empty(note)) { sbuddy->note = g_markup_escape_text(note, -1); }

                sbuddy->is_oof_note = (xn_oof != NULL);

                g_free(sbuddy->device_name);
                sbuddy->device_name = NULL;
                if (!is_empty(device_name)) { sbuddy->device_name = g_strdup(device_name); }

                if (!is_empty(cal_free_busy_base64)) {
                        g_free(sbuddy->cal_start_time);
                        sbuddy->cal_start_time = g_strdup(cal_start_time);

                        sbuddy->cal_granularity = sipe_strcase_equal(cal_granularity, "PT15M") ? 15 : 0;

                        g_free(sbuddy->cal_free_busy_base64);
                        sbuddy->cal_free_busy_base64 = cal_free_busy_base64;
                        cal_free_busy_base64 = NULL;

                        g_free(sbuddy->cal_free_busy);
                        sbuddy->cal_free_busy = NULL;
                }

                sbuddy->last_non_cal_status_id = status_id;
                g_free(sbuddy->last_non_cal_activity);
                sbuddy->last_non_cal_activity = g_strdup(sbuddy->activity);

                if (sipe_strcase_equal(sbuddy->name, self_uri)) {
                        if (!sipe_strequal(sbuddy->note, sipe_private->note)) /* not same */
                        {
                                if (sbuddy->is_oof_note)
                                        SIPE_CORE_PRIVATE_FLAG_SET(OOF_NOTE);
                                else
                                        SIPE_CORE_PRIVATE_FLAG_UNSET(OOF_NOTE);

                                g_free(sipe_private->note);
                                sipe_private->note = g_strdup(sbuddy->note);

                                sipe_private->note_since = time(NULL);
                        }

                        sipe_status_set_token(sipe_private,
                                              sbuddy->last_non_cal_status_id);
                }
        }
        g_free(cal_free_busy_base64);
        g_free(activity);

        SIPE_DEBUG_INFO("process_incoming_notify_msrtc: status(%s)", status_id);
        sipe_core_buddy_got_status(SIPE_CORE_PUBLIC, uri,
                                   sipe_status_token_to_activity(status_id));

        if (!SIPE_CORE_PRIVATE_FLAG_IS(OCS2007) && sipe_strcase_equal(self_uri, uri)) {
                sipe_ocs2005_user_info_has_updated(sipe_private, xn_userinfo);
        }

        g_free(note);
        sipe_xml_free(xn_presentity);
        g_free(uri);
        g_free(self_uri);
}

static void process_incoming_notify_rlmi(struct sipe_core_private *sipe_private,
                                         const gchar *data,
                                         unsigned len)
{
        const char *uri;
        struct sipe_buddy *sbuddy = NULL;
        sipe_xml *xn_categories;
        const sipe_xml *xn_category;
        const char *status = NULL;
        gboolean do_update_status = FALSE;
        gboolean has_note_cleaned = FALSE;
        gboolean has_free_busy_cleaned = FALSE;

        xn_categories = sipe_xml_parse(data, len);
        uri = sipe_xml_attribute(xn_categories, "uri"); /* with 'sip:' prefix */
        if (uri) {
                sbuddy = g_hash_table_lookup(sipe_private->buddies, uri);
        }

        if (!sbuddy) {
                /* Got presence of a buddy not in our contact list, ignore. */
                sipe_xml_free(xn_categories);
                return;
        }

        for (xn_category = sipe_xml_child(xn_categories, "category");
                 xn_category ;
                 xn_category = sipe_xml_twin(xn_category) )
        {
                const sipe_xml *xn_node;
                const char *tmp;
                const char *attrVar = sipe_xml_attribute(xn_category, "name");
                time_t publish_time = (tmp = sipe_xml_attribute(xn_category, "publishTime")) ?
                        sipe_utils_str_to_time(tmp) : 0;

                /* contactCard */
                if (sipe_strequal(attrVar, "contactCard"))
                {
                        const sipe_xml *card = sipe_xml_child(xn_category, "contactCard");

                        if (card) {
                                const sipe_xml *node;
                                /* identity - Display Name and email */
                                node = sipe_xml_child(card, "identity");
                                if (node) {
                                        char* display_name = sipe_xml_data(
                                                sipe_xml_child(node, "name/displayName"));
                                        char* email = sipe_xml_data(
                                                sipe_xml_child(node, "email"));

                                        sipe_buddy_update_property(sipe_private, uri, SIPE_BUDDY_INFO_DISPLAY_NAME, display_name);
                                        sipe_buddy_update_property(sipe_private, uri, SIPE_BUDDY_INFO_EMAIL, email);

                                        g_free(display_name);
                                        g_free(email);
                                }
                                /* company */
                                node = sipe_xml_child(card, "company");
                                if (node) {
                                        char* company = sipe_xml_data(node);
                                        sipe_buddy_update_property(sipe_private, uri, SIPE_BUDDY_INFO_COMPANY, company);
                                        g_free(company);
                                }
                                /* department */
                                node = sipe_xml_child(card, "department");
                                if (node) {
                                        char* department = sipe_xml_data(node);
                                        sipe_buddy_update_property(sipe_private, uri, SIPE_BUDDY_INFO_DEPARTMENT, department);
                                        g_free(department);
                                }
                                /* title */
                                node = sipe_xml_child(card, "title");
                                if (node) {
                                        char* title = sipe_xml_data(node);
                                        sipe_buddy_update_property(sipe_private, uri, SIPE_BUDDY_INFO_JOB_TITLE, title);
                                        g_free(title);
                                }
                                /* office */
                                node = sipe_xml_child(card, "office");
                                if (node) {
                                        char* office = sipe_xml_data(node);
                                        sipe_buddy_update_property(sipe_private, uri, SIPE_BUDDY_INFO_OFFICE, office);
                                        g_free(office);
                                }
                                /* site (url) */
                                node = sipe_xml_child(card, "url");
                                if (node) {
                                        char* site = sipe_xml_data(node);
                                        sipe_buddy_update_property(sipe_private, uri, SIPE_BUDDY_INFO_SITE, site);
                                        g_free(site);
                                }
                                /* phone */
                                for (node = sipe_xml_child(card, "phone");
                                     node;
                                     node = sipe_xml_twin(node))
                                {
                                        const char *phone_type = sipe_xml_attribute(node, "type");
                                        char* phone = sipe_xml_data(sipe_xml_child(node, "uri"));
                                        char* phone_display_string = sipe_xml_data(sipe_xml_child(node, "displayString"));

                                        sipe_update_user_phone(sipe_private, uri, phone_type, phone, phone_display_string);

                                        g_free(phone);
                                        g_free(phone_display_string);
                                }
                                /* address */
                                for (node = sipe_xml_child(card, "address");
                                     node;
                                     node = sipe_xml_twin(node))
                                {
                                        if (sipe_strequal(sipe_xml_attribute(node, "type"), "work")) {
                                                char* street = sipe_xml_data(sipe_xml_child(node, "street"));
                                                char* city = sipe_xml_data(sipe_xml_child(node, "city"));
                                                char* state = sipe_xml_data(sipe_xml_child(node, "state"));
                                                char* zipcode = sipe_xml_data(sipe_xml_child(node, "zipcode"));
                                                char* country_code = sipe_xml_data(sipe_xml_child(node, "countryCode"));

                                                sipe_buddy_update_property(sipe_private, uri, SIPE_BUDDY_INFO_STREET, street);
                                                sipe_buddy_update_property(sipe_private, uri, SIPE_BUDDY_INFO_CITY, city);
                                                sipe_buddy_update_property(sipe_private, uri, SIPE_BUDDY_INFO_STATE, state);
                                                sipe_buddy_update_property(sipe_private, uri, SIPE_BUDDY_INFO_ZIPCODE, zipcode);
                                                sipe_buddy_update_property(sipe_private, uri, SIPE_BUDDY_INFO_COUNTRY, country_code);

                                                g_free(street);
                                                g_free(city);
                                                g_free(state);
                                                g_free(zipcode);
                                                g_free(country_code);

                                                break;
                                        }
                                }
                        }
                }
                /* note */
                else if (sipe_strequal(attrVar, "note"))
                {
                        if (!has_note_cleaned) {
                                has_note_cleaned = TRUE;

                                g_free(sbuddy->note);
                                sbuddy->note = NULL;
                                sbuddy->is_oof_note = FALSE;
                                sbuddy->note_since = publish_time;

                                do_update_status = TRUE;
                        }
                        if (publish_time >= sbuddy->note_since) {
                                /* clean up in case no 'note' element is supplied
                                 * which indicate note removal in client
                                 */
                                g_free(sbuddy->note);
                                sbuddy->note = NULL;
                                sbuddy->is_oof_note = FALSE;
                                sbuddy->note_since = publish_time;

                                xn_node = sipe_xml_child(xn_category, "note/body");
                                if (xn_node) {
                                        char *tmp;
                                        sbuddy->note = g_markup_escape_text((tmp = sipe_xml_data(xn_node)), -1);
                                        g_free(tmp);
                                        sbuddy->is_oof_note = sipe_strequal(sipe_xml_attribute(xn_node, "type"), "OOF");
                                        sbuddy->note_since = publish_time;

                                        SIPE_DEBUG_INFO("process_incoming_notify_rlmi: uri(%s), note(%s)",
                                                        uri, sbuddy->note ? sbuddy->note : "");
                                }
                                /* to trigger UI refresh in case no status info is supplied in this update */
                                do_update_status = TRUE;
                        }
                }
                /* state */
                else if(sipe_strequal(attrVar, "state"))
                {
                        char *tmp;
                        int availability;
                        const sipe_xml *xn_availability;
                        const sipe_xml *xn_activity;
                        const sipe_xml *xn_meeting_subject;
                        const sipe_xml *xn_meeting_location;
                        const gchar *legacy_activity;

                        xn_node = sipe_xml_child(xn_category, "state");
                        if (!xn_node) continue;
                        xn_availability = sipe_xml_child(xn_node, "availability");
                        if (!xn_availability) continue;
                        xn_activity = sipe_xml_child(xn_node, "activity");
                        xn_meeting_subject = sipe_xml_child(xn_node, "meetingSubject");
                        xn_meeting_location = sipe_xml_child(xn_node, "meetingLocation");

                        tmp = sipe_xml_data(xn_availability);
                        availability = atoi(tmp);
                        g_free(tmp);

                        /* activity */
                        g_free(sbuddy->activity);
                        sbuddy->activity = NULL;
                        if (xn_activity) {
                                const char *token = sipe_xml_attribute(xn_activity, "token");
                                const sipe_xml *xn_custom = sipe_xml_child(xn_activity, "custom");

                                /* from token */
                                if (!is_empty(token)) {
                                        sbuddy->activity = g_strdup(sipe_core_activity_description(sipe_status_token_to_activity(token)));
                                }
                                /* from custom element */
                                if (xn_custom) {
                                        char *custom = sipe_xml_data(xn_custom);

                                        if (!is_empty(custom)) {
                                                g_free(sbuddy->activity);
                                                sbuddy->activity = custom;
                                                custom = NULL;
                                        }
                                        g_free(custom);
                                }
                        }
                        /* meeting_subject */
                        g_free(sbuddy->meeting_subject);
                        sbuddy->meeting_subject = NULL;
                        if (xn_meeting_subject) {
                                char *meeting_subject = sipe_xml_data(xn_meeting_subject);

                                if (!is_empty(meeting_subject)) {
                                        sbuddy->meeting_subject = meeting_subject;
                                        meeting_subject = NULL;
                                }
                                g_free(meeting_subject);
                        }
                        /* meeting_location */
                        g_free(sbuddy->meeting_location);
                        sbuddy->meeting_location = NULL;
                        if (xn_meeting_location) {
                                char *meeting_location = sipe_xml_data(xn_meeting_location);

                                if (!is_empty(meeting_location)) {
                                        sbuddy->meeting_location = meeting_location;
                                        meeting_location = NULL;
                                }
                                g_free(meeting_location);
                        }

                        status = sipe_ocs2007_status_from_legacy_availability(availability, NULL);
                        legacy_activity = sipe_ocs2007_legacy_activity_description(availability);
                        if (sbuddy->activity && legacy_activity) {
                                gchar *tmp2 = sbuddy->activity;

                                sbuddy->activity = g_strdup_printf("%s, %s", sbuddy->activity, legacy_activity);
                                g_free(tmp2);
                        } else if (legacy_activity) {
                                sbuddy->activity = g_strdup(legacy_activity);
                        }

                        do_update_status = TRUE;
                }
                /* calendarData */
                else if(sipe_strequal(attrVar, "calendarData"))
                {
                        const sipe_xml *xn_free_busy = sipe_xml_child(xn_category, "calendarData/freeBusy");
                        const sipe_xml *xn_working_hours = sipe_xml_child(xn_category, "calendarData/WorkingHours");

                        if (xn_free_busy) {
                                if (!has_free_busy_cleaned) {
                                        has_free_busy_cleaned = TRUE;

                                        g_free(sbuddy->cal_start_time);
                                        sbuddy->cal_start_time = NULL;

                                        g_free(sbuddy->cal_free_busy_base64);
                                        sbuddy->cal_free_busy_base64 = NULL;

                                        g_free(sbuddy->cal_free_busy);
                                        sbuddy->cal_free_busy = NULL;

                                        sbuddy->cal_free_busy_published = publish_time;
                                }

                                if (publish_time >= sbuddy->cal_free_busy_published) {
                                        g_free(sbuddy->cal_start_time);
                                        sbuddy->cal_start_time = g_strdup(sipe_xml_attribute(xn_free_busy, "startTime"));

                                        sbuddy->cal_granularity = sipe_strcase_equal(sipe_xml_attribute(xn_free_busy, "granularity"), "PT15M") ?
                                                15 : 0;

                                        g_free(sbuddy->cal_free_busy_base64);
                                        sbuddy->cal_free_busy_base64 = sipe_xml_data(xn_free_busy);

                                        g_free(sbuddy->cal_free_busy);
                                        sbuddy->cal_free_busy = NULL;

                                        sbuddy->cal_free_busy_published = publish_time;

                                        SIPE_DEBUG_INFO("process_incoming_notify_rlmi: startTime=%s granularity=%d cal_free_busy_base64=\n%s", sbuddy->cal_start_time, sbuddy->cal_granularity, sbuddy->cal_free_busy_base64);
                                }
                        }

                        if (xn_working_hours) {
                                sipe_cal_parse_working_hours(xn_working_hours, sbuddy);
                        }
                }
        }

        if (do_update_status) {
                guint activity;

                if (status) {
                        SIPE_DEBUG_INFO("process_incoming_notify_rlmi: %s", status);
                        activity = sipe_status_token_to_activity(status);
                } else {
                        /* no status category in this update,
                           using contact's current status */
                        activity = sipe_backend_buddy_get_status(SIPE_CORE_PUBLIC,
                                                                 uri);
                }

                sipe_core_buddy_got_status(SIPE_CORE_PUBLIC, uri, activity);
        }

        sipe_backend_buddy_refresh_properties(SIPE_CORE_PUBLIC, uri);

        sipe_xml_free(xn_categories);
}

static void sipe_buddy_status_from_activity(struct sipe_core_private *sipe_private,
                                            const gchar *uri,
                                            const gchar *activity,
                                            gboolean is_online)
{
        if (is_online) {
                const gchar *status_id = NULL;
                if (activity) {
                        if (sipe_strequal(activity,
                                          sipe_status_activity_to_token(SIPE_ACTIVITY_BUSY))) {
                                status_id = sipe_status_activity_to_token(SIPE_ACTIVITY_BUSY);
                        } else if (sipe_strequal(activity,
                                                 sipe_status_activity_to_token(SIPE_ACTIVITY_AWAY))) {
                                status_id = sipe_status_activity_to_token(SIPE_ACTIVITY_AWAY);
                        }
                }

                if (!status_id) {
                        status_id = sipe_status_activity_to_token(SIPE_ACTIVITY_AVAILABLE);
                }

                SIPE_DEBUG_INFO("sipe_buddy_status_from_activity: status_id(%s)", status_id);
                sipe_core_buddy_got_status(SIPE_CORE_PUBLIC, uri,
                                           sipe_status_token_to_activity(status_id));
        } else {
                sipe_core_buddy_got_status(SIPE_CORE_PUBLIC, uri,
                                           SIPE_ACTIVITY_OFFLINE);
        }
}

static void process_incoming_notify_pidf(struct sipe_core_private *sipe_private,
                                         const gchar *data,
                                         unsigned len)
{
        gchar *uri;
        gchar *getbasic;
        gchar *activity = NULL;
        sipe_xml *pidf;
        const sipe_xml *basicstatus = NULL, *tuple, *status;
        gboolean isonline = FALSE;
        const sipe_xml *display_name_node;

        pidf = sipe_xml_parse(data, len);
        if (!pidf) {
                SIPE_DEBUG_INFO("process_incoming_notify_pidf: no parseable pidf:%s", data);
                return;
        }

        if ((tuple = sipe_xml_child(pidf, "tuple")))
        {
                if ((status = sipe_xml_child(tuple, "status"))) {
                        basicstatus = sipe_xml_child(status, "basic");
                }
        }

        if (!basicstatus) {
                SIPE_DEBUG_INFO_NOFORMAT("process_incoming_notify_pidf: no basic found");
                sipe_xml_free(pidf);
                return;
        }

        getbasic = sipe_xml_data(basicstatus);
        if (!getbasic) {
                SIPE_DEBUG_INFO_NOFORMAT("process_incoming_notify_pidf: no basic data found");
                sipe_xml_free(pidf);
                return;
        }

        SIPE_DEBUG_INFO("process_incoming_notify_pidf: basic-status(%s)", getbasic);
        if (strstr(getbasic, "open")) {
                isonline = TRUE;
        }
        g_free(getbasic);

        uri = sip_uri(sipe_xml_attribute(pidf, "entity")); /* with 'sip:' prefix */ /* AOL comes without the prefix */

        display_name_node = sipe_xml_child(pidf, "display-name");
        if (display_name_node) {
                char * display_name = sipe_xml_data(display_name_node);

                sipe_buddy_update_property(sipe_private, uri, SIPE_BUDDY_INFO_DISPLAY_NAME, display_name);
                g_free(display_name);

                sipe_backend_buddy_refresh_properties(SIPE_CORE_PUBLIC, uri);
        }

        if ((tuple = sipe_xml_child(pidf, "tuple"))) {
                if ((status = sipe_xml_child(tuple, "status"))) {
                        if ((basicstatus = sipe_xml_child(status, "activities"))) {
                                if ((basicstatus = sipe_xml_child(basicstatus, "activity"))) {
                                        activity = sipe_xml_data(basicstatus);
                                        SIPE_DEBUG_INFO("process_incoming_notify_pidf: activity(%s)", activity);
                                }
                        }
                }
        }

        sipe_buddy_status_from_activity(sipe_private,
                                        uri,
                                        activity,
                                        isonline);

        g_free(activity);
        g_free(uri);
        sipe_xml_free(pidf);
}

static void sipe_presence_mime_cb(gpointer user_data, /* sipe_core_private */
                                  const GSList *fields,
                                  const gchar *body,
                                  gsize length)
{
        const gchar *type = sipe_utils_nameval_find(fields, "Content-Type");

        if (strstr(type,"application/rlmi+xml")) {
                process_incoming_notify_rlmi_resub(user_data, body, length);
        } else if (strstr(type, "text/xml+msrtc.pidf")) {
                process_incoming_notify_msrtc(user_data, body, length);
        } else {
                process_incoming_notify_rlmi(user_data, body, length);
        }
}

static void sipe_process_presence(struct sipe_core_private *sipe_private,
                                  struct sipmsg *msg)
{
        const char *ctype = sipmsg_find_header(msg, "Content-Type");

        SIPE_DEBUG_INFO("sipe_process_presence: Content-Type: %s", ctype ? ctype : "");

        if (ctype &&
            (strstr(ctype, "application/rlmi+xml") ||
             strstr(ctype, "application/msrtc-event-categories+xml")))
        {
                if (strstr(ctype, "multipart"))
                {
                        sipe_mime_parts_foreach(ctype, msg->body, sipe_presence_mime_cb, sipe_private);
                }
                else if(strstr(ctype, "application/msrtc-event-categories+xml") )
                {
                        process_incoming_notify_rlmi(sipe_private, msg->body, msg->bodylen);
                }
                else if(strstr(ctype, "application/rlmi+xml"))
                {
                        process_incoming_notify_rlmi_resub(sipe_private, msg->body, msg->bodylen);
                }
        }
        else if(ctype && strstr(ctype, "text/xml+msrtc.pidf"))
        {
                process_incoming_notify_msrtc(sipe_private, msg->body, msg->bodylen);
        }
        else
        {
                process_incoming_notify_pidf(sipe_private, msg->body, msg->bodylen);
        }
}

/**
 * Fires on deregistration event initiated by server.
 * [MS-SIPREGE] SIP extension.
 *
 *      OCS2007 Example
 *
 *      Content-Type: text/registration-event
 *      subscription-state: terminated;expires=0
 *      ms-diagnostics-public: 4141;reason="User disabled"
 *
 *      deregistered;event=rejected
 */
static void sipe_process_registration_notify(struct sipe_core_private *sipe_private,
                                             struct sipmsg *msg)
{
        const gchar *contenttype = sipmsg_find_header(msg, "Content-Type");
        gchar *event = NULL;
        gchar *reason = NULL;
        gchar *warning;

        SIPE_DEBUG_INFO_NOFORMAT("sipe_process_registration_notify: deregistration received.");

        if (!g_ascii_strncasecmp(contenttype, "text/registration-event", 23)) {
                event = sipmsg_find_part_of_header(msg->body, "event=", NULL, NULL);
                //@TODO have proper parameter extraction _by_name_ func, case insesitive.
                event = event ? event : sipmsg_find_part_of_header(msg->body, "event=", ";", NULL);
        } else {
                SIPE_DEBUG_INFO_NOFORMAT("sipe_process_registration_notify: unknown content type, exiting.");
                return;
        }

        reason = sipmsg_get_ms_diagnostics_reason(msg);
        reason = reason ? reason : sipmsg_get_ms_diagnostics_public_reason(msg);
        if (!reason) { // for LCS2005
                if (event && sipe_strcase_equal(event, "unregistered")) {
                        //reason = g_strdup(_("User logged out")); // [MS-OCER]
                        reason = g_strdup(_("you are already signed in at another location"));
                } else if (event && sipe_strcase_equal(event, "rejected")) {
                        reason = g_strdup(_("user disabled")); // [MS-OCER]
                } else if (event && sipe_strcase_equal(event, "deactivated")) {
                        reason = g_strdup(_("user moved")); // [MS-OCER]
                }
        }
        g_free(event);
        warning = g_strdup_printf(_("You have been rejected by the server: %s"), reason ? reason : _("no reason given"));
        g_free(reason);

        sipe_backend_connection_error(SIPE_CORE_PUBLIC,
                                      SIPE_CONNECTION_ERROR_INVALID_USERNAME,
                                      warning);
        g_free(warning);

}

/**
  * Removes entries from local buddy list
  * that does not correspond ones in the roaming contact list.
  */
static void sipe_cleanup_local_blist(struct sipe_core_private *sipe_private)
{
        GSList *buddies = sipe_backend_buddy_find_all(SIPE_CORE_PUBLIC,
                                                      NULL, NULL);
        GSList *entry = buddies;
        struct sipe_buddy *buddy;
        sipe_backend_buddy b;
        gchar *bname;
        gchar *gname;

        SIPE_DEBUG_INFO("sipe_cleanup_local_blist: overall %d backend buddies (including clones)", g_slist_length(buddies));
        SIPE_DEBUG_INFO("sipe_cleanup_local_blist: %d sipe buddies (unique)", g_hash_table_size(sipe_private->buddies));
        while (entry) {
                b = entry->data;
                gname = sipe_backend_buddy_get_group_name(SIPE_CORE_PUBLIC, b);
                bname = sipe_backend_buddy_get_name(SIPE_CORE_PUBLIC, b);
                buddy = g_hash_table_lookup(sipe_private->buddies, bname);
                if(buddy) {
                        gboolean in_sipe_groups = FALSE;
                        GSList *entry2 = buddy->groups;
                        while (entry2) {
                                struct sipe_group *group = entry2->data;
                                if (sipe_strequal(group->name, gname)) {
                                        in_sipe_groups = TRUE;
                                        break;
                                }
                                entry2 = entry2->next;
                        }
                        if(!in_sipe_groups) {
                                SIPE_DEBUG_INFO("*** REMOVING %s from blist group: %s as not having this group in roaming list", bname, gname);
                                sipe_backend_buddy_remove(SIPE_CORE_PUBLIC, b);
                        }
                } else {
                                SIPE_DEBUG_INFO("*** REMOVING %s from blist group: %s as this buddy not in roaming list", bname, gname);
                                sipe_backend_buddy_remove(SIPE_CORE_PUBLIC, b);
                }
                g_free(bname);
                g_free(gname);
                entry = entry->next;
        }
        g_slist_free(buddies);
}

/**
  * A callback for g_hash_table_foreach
  */
static void sipe_buddy_subscribe_cb(char *buddy_name,
                                    SIPE_UNUSED_PARAMETER struct sipe_buddy *buddy,
                                    struct sipe_core_private *sipe_private)
{
        guint time_range = (g_hash_table_size(sipe_private->buddies) * 1000) / 25; /* time interval for 25 requests per sec. In msec. */

        /*
         * g_hash_table_size() can never return 0, otherwise this function
         * wouldn't be called :-) But to keep Coverity happy...
         */
        if (time_range) {
                gchar *action_name = sipe_utils_presence_key(buddy_name);
                guint timeout = ((guint) rand()) / (RAND_MAX / time_range) + 1; /* random period within the range but never 0! */

                sipe_schedule_mseconds(sipe_private,
                                       action_name,
                                       g_strdup(buddy_name),
                                       timeout,
                                       sipe_subscribe_presence_single_cb,
                                       g_free);
                g_free(action_name);
        }
}

/* Replace "~" with localized version of "Other Contacts" */
static const gchar *get_group_name(const sipe_xml *node)
{
        const gchar *name = sipe_xml_attribute(node, "name");
        return(g_str_has_prefix(name, "~") ? _("Other Contacts") : name);
}

static void add_new_group(struct sipe_core_private *sipe_private,
                          const sipe_xml *node)
{
        struct sipe_group *group = g_new0(struct sipe_group, 1);

        group->name = g_strdup(get_group_name(node));
        group->id = (int)g_ascii_strtod(sipe_xml_attribute(node, "id"), NULL);

        sipe_group_add(sipe_private, group);
}

static void add_new_buddy(struct sipe_core_private *sipe_private,
                          const sipe_xml *node,
                          const gchar *uri,
                          const gchar *alias)
{
        const gchar *name = sipe_xml_attribute(node, "name");
        /* Buddy name must be lower case as we use purple_normalize_nocase() to compare */
        gchar *normalized_uri = g_ascii_strdown(uri, -1);
        struct sipe_buddy *buddy = NULL;
        gchar *tmp;
        gchar **item_groups;
        int i = 0;

        /* assign to group Other Contacts if nothing else received */
        tmp = g_strdup(sipe_xml_attribute(node, "groups"));
        if (is_empty(tmp)) {
                struct sipe_group *group = sipe_group_find_by_name(sipe_private,
                                                                   _("Other Contacts"));
                g_free(tmp);
                tmp = group ? g_strdup_printf("%d", group->id) : g_strdup("1");
        }
        item_groups = g_strsplit(tmp, " ", 0);
        g_free(tmp);

        while (item_groups[i]) {
                struct sipe_group *group = sipe_group_find_by_id(sipe_private,
                                                                 g_ascii_strtod(item_groups[i],
                                                                                NULL));

                /* If couldn't find the right group for this contact, */
                /* then just put it in the first group we have        */
                if ((group == NULL) &&
                    (g_slist_length(sipe_private->groups) > 0))
                        group = sipe_private->groups->data;

                if (group) {
                        sipe_backend_buddy b = sipe_backend_buddy_find(SIPE_CORE_PUBLIC,
                                                                       normalized_uri,
                                                                       group->name);
                        gchar *b_alias;

                        if (!b) {
                                b = sipe_backend_buddy_add(SIPE_CORE_PUBLIC,
                                                           normalized_uri,
                                                           alias,
                                                           group->name);
                                SIPE_DEBUG_INFO("Created new buddy %s with alias %s",
                                                normalized_uri, alias);
                        }

                        b_alias = sipe_backend_buddy_get_alias(SIPE_CORE_PUBLIC, b);
                        if (sipe_strcase_equal(alias, b_alias) &&
                            !is_empty(name)) {
                                sipe_backend_buddy_set_alias(SIPE_CORE_PUBLIC,
                                                             b,
                                                             name);
                                SIPE_DEBUG_INFO("Replaced for buddy %s in group '%s' old alias '%s' with '%s'",
                                                normalized_uri, group->name, b_alias, name);
                        }
                        g_free(b_alias);

                        if (!buddy)
                                buddy = sipe_buddy_add(sipe_private,
                                                       normalized_uri);

                        buddy->groups = sipe_utils_slist_insert_unique_sorted(buddy->groups,
                                                                              group,
                                                                              (GCompareFunc)sipe_group_compare,
                                                                              NULL);

                        SIPE_DEBUG_INFO("Added buddy %s to group %s",
                                        buddy->name, group->name);
                } else {
                        SIPE_DEBUG_INFO("No group found for contact %s!  Unable to add to buddy list",
                                        name);
                }

                i++;
        }

        g_strfreev(item_groups);
        g_free(normalized_uri);
}

static gboolean sipe_process_roaming_contacts(struct sipe_core_private *sipe_private,
                                              struct sipmsg *msg)
{
        int len = msg->bodylen;

        const gchar *tmp = sipmsg_find_header(msg, "Event");
        const sipe_xml *item;
        sipe_xml *isc;
        guint delta;
        const sipe_xml *group_node;

        if (!g_str_has_prefix(tmp, "vnd-microsoft-roaming-contacts")) {
                return FALSE;
        }

        /* Convert the contact from XML to backend Buddies */
        isc = sipe_xml_parse(msg->body, len);
        if (!isc) {
                return FALSE;
        }

        /* [MS-SIP]: deltaNum MUST be non-zero */
        delta = sipe_xml_int_attribute(isc, "deltaNum", 0);
        if (delta) {
                sipe_private->deltanum_contacts = delta;
        }

        /*
         * Process whole buddy list
         *
         *  - Only sent once
         *    * up to Lync 2010
         *    * Lync 2013 (and later) with buddy list not migrated
         *
         *  - Lync 2013 with buddy list migrated to Unified Contact Store (UCS)
         *    * Notify piggy-backed on SUBSCRIBE response with empty list
         *    * NOTIFY send by server with standard list
         */
        if (sipe_strequal(sipe_xml_name(isc), "contactList")) {
                const gchar *ucsmode = sipe_xml_attribute(isc, "ucsmode");

                SIPE_CORE_PRIVATE_FLAG_UNSET(LYNC2013);
                SIPE_CORE_PRIVATE_FLAG_UNSET(UCS);
                if (ucsmode) {
                        SIPE_CORE_PRIVATE_FLAG_SET(LYNC2013);
                        SIPE_DEBUG_INFO_NOFORMAT("contact list contains 'ucsmode' attribute (indicates Lync 2013+)");

                        if (sipe_strcase_equal(ucsmode, "migrated")) {
                                SIPE_CORE_PRIVATE_FLAG_SET(UCS);
                                SIPE_DEBUG_INFO_NOFORMAT("contact list has been migrated to Unified Contact Store (UCS)");
                                sipe_ucs_init(sipe_private);
                        }
                }

                group_node = sipe_xml_child(isc, "group");
                item = sipe_xml_child(isc, "contact");

                if (!SIPE_CORE_PRIVATE_FLAG_IS(OCS2007) || group_node || item) {

                        /* Start processing contact list */
                        sipe_backend_buddy_list_processing_start(SIPE_CORE_PUBLIC);

                        /* Parse groups */
                        for (; group_node; group_node = sipe_xml_twin(group_node))
                                add_new_group(sipe_private, group_node);

                        /* Make sure we have at least one group */
                        if (g_slist_length(sipe_private->groups) == 0) {
                                sipe_group_create(sipe_private, _("Other Contacts"), NULL);
                        }

                        /* Parse contacts */
                        for (; item; item = sipe_xml_twin(item)) {
                                const gchar *name = sipe_xml_attribute(item, "uri");
                                gchar *uri        = sip_uri_from_name(name);
                                add_new_buddy(sipe_private, item, uri, name);
                                g_free(uri);
                        }

                        sipe_cleanup_local_blist(sipe_private);

                        /* Add self-contact if not there yet. 2005 systems. */
                        /* This will resemble subscription to roaming_self in 2007 systems */
                        if (!SIPE_CORE_PRIVATE_FLAG_IS(OCS2007)) {
                                gchar *self_uri = sip_uri_self(sipe_private);
                                sipe_buddy_add(sipe_private, self_uri);
                                g_free(self_uri);
                        }

                        /* Finished processing contact list */
                        sipe_backend_buddy_list_processing_finish(SIPE_CORE_PUBLIC);
                }

        /* Process buddy list updates */
        } else if (sipe_strequal(sipe_xml_name(isc), "contactDelta")) {

                /* Process new groups */
                for (group_node = sipe_xml_child(isc, "addedGroup"); group_node; group_node = sipe_xml_twin(group_node))
                        add_new_group(sipe_private, group_node);

                /* Process modified groups */
                for (group_node = sipe_xml_child(isc, "modifiedGroup"); group_node; group_node = sipe_xml_twin(group_node)) {
                        struct sipe_group *group = sipe_group_find_by_id(sipe_private,
                                                                         (int)g_ascii_strtod(sipe_xml_attribute(group_node, "id"),
                                                                                             NULL));
                        if (group) {
                                const gchar *name = get_group_name(group_node);

                                if (!(is_empty(name) ||
                                      sipe_strequal(group->name, name)) &&
                                    sipe_group_rename(sipe_private,
                                                      group,
                                                      name))
                                        SIPE_DEBUG_INFO("Replaced group %d name with %s", group->id, name);
                        }
                }

                /* Process new buddies */
                for (item = sipe_xml_child(isc, "addedContact"); item; item = sipe_xml_twin(item)) {
                        const gchar *uri  = sipe_xml_attribute(item, "uri");
                        const gchar *name = sipe_get_no_sip_uri(uri);
                        add_new_buddy(sipe_private, item, uri, name);
                }

                /* Process modified buddies */
                for (item = sipe_xml_child(isc, "modifiedContact"); item; item = sipe_xml_twin(item)) {
                        const gchar *uri = sipe_xml_attribute(item, "uri");
                        struct sipe_buddy *buddy = g_hash_table_lookup(sipe_private->buddies,
                                                                       uri);

                        if (buddy) {
                                gchar **item_groups = g_strsplit(sipe_xml_attribute(item,
                                                                                    "groups"),
                                                                 " ", 0);

                                /* this should be defined. Otherwise we would get "deletedContact" */
                                if (item_groups) {
                                        const gchar *name = sipe_xml_attribute(item, "name");
                                        gboolean empty_name = is_empty(name);
                                        GSList *found = NULL;
                                        GSList *entry;
                                        int i = 0;

                                        while (item_groups[i]) {
                                                struct sipe_group *group = sipe_group_find_by_id(sipe_private,
                                                                                                 g_ascii_strtod(item_groups[i],
                                                                                                                NULL));
                                                /* ignore unkown groups */
                                                if (group) {
                                                        sipe_backend_buddy b = sipe_backend_buddy_find(SIPE_CORE_PUBLIC,
                                                                                                       uri,
                                                                                                       group->name);

                                                        /* add group to found list */
                                                        found = g_slist_prepend(found, group);

                                                        if (b) {
                                                                /* new alias? */
                                                                gchar *b_alias = sipe_backend_buddy_get_alias(SIPE_CORE_PUBLIC,
                                                                                                              b);

                                                                if (!(empty_name ||
                                                                      sipe_strequal(b_alias, name))) {
                                                                        sipe_backend_buddy_set_alias(SIPE_CORE_PUBLIC,
                                                                                                     b,
                                                                                                     name);
                                                                        SIPE_DEBUG_INFO("Replaced for buddy %s in group '%s' old alias '%s' with '%s'",
                                                                                        uri, group->name, b_alias, name);
                                                                }
                                                                g_free(b_alias);

                                                        } else {
                                                                const gchar *alias = empty_name ? uri : name;
                                                                /* buddy was not in this group */
                                                                sipe_backend_buddy_add(SIPE_CORE_PUBLIC,
                                                                                       uri,
                                                                                       alias,
                                                                                       group->name);
                                                                buddy->groups = sipe_utils_slist_insert_unique_sorted(buddy->groups,
                                                                                                                      group,
                                                                                                                      (GCompareFunc) sipe_group_compare,
                                                                                                                      NULL);
                                                                SIPE_DEBUG_INFO("Added buddy %s (alias '%s' to group '%s'",
                                                                                uri, alias, group->name);
                                                        }
                                                }

                                                /* next group */
                                                i++;
                                        }
                                        g_strfreev(item_groups);

                                        /* removed from groups? */
                                        entry = buddy->groups;
                                        while (entry) {
                                                GSList *remove_link = entry;
                                                struct sipe_group *group = remove_link->data;

                                                /* next buddy group */
                                                entry = entry->next;

                                                /* old group NOT found in new list? */
                                                if (g_slist_find(found, group) == NULL) {
                                                        sipe_backend_buddy oldb = sipe_backend_buddy_find(SIPE_CORE_PUBLIC,
                                                                                                          uri,
                                                                                                          group->name);
                                                        SIPE_DEBUG_INFO("Removing buddy %s from group '%s'",
                                                                        uri, group->name);
                                                        /* this should never be NULL */
                                                        if (oldb)
                                                                sipe_backend_buddy_remove(SIPE_CORE_PUBLIC,
                                                                                          oldb);
                                                        buddy->groups = g_slist_remove_link(buddy->groups,
                                                                                            remove_link);
                                                }
                                        }
                                        g_slist_free(found);
                                }
                        }
                }

                /* Process deleted buddies */
                for (item = sipe_xml_child(isc, "deletedContact"); item; item = sipe_xml_twin(item)) {
                        const gchar *uri = sipe_xml_attribute(item, "uri");
                        struct sipe_buddy *buddy = g_hash_table_lookup(sipe_private->buddies,
                                                                       uri);

                        if (buddy) {
                                GSList *entry = buddy->groups;

                                SIPE_DEBUG_INFO("Removing buddy %s", uri);
                                while (entry) {
                                        struct sipe_group *group = entry->data;
                                        sipe_backend_buddy oldb = sipe_backend_buddy_find(SIPE_CORE_PUBLIC,
                                                                                          uri,
                                                                                          group->name);
                                        /* this should never be NULL */
                                        if (oldb)
                                                sipe_backend_buddy_remove(SIPE_CORE_PUBLIC,
                                                                          oldb);

                                        /* next buddy group */
                                        entry = entry->next;
                                }
                                sipe_buddy_remove(sipe_private, buddy);
                        }
                }

                /* Process deleted groups
                 *
                 * NOTE: all buddies will already have been removed from the
                 *       group prior to this. The log shows that OCS actually
                 *       sends two separate updates when you delete a group:
                 *
                 *         - first one with "modifiedContact" removing buddies
                 *           from the group, leaving it empty, and
                 *
                 *         - then one with "deletedGroup" removing the group
                 */
                for (group_node = sipe_xml_child(isc, "deletedGroup"); group_node; group_node = sipe_xml_twin(group_node))
                        sipe_group_remove(sipe_private,
                                          sipe_group_find_by_id(sipe_private,
                                                                (int)g_ascii_strtod(sipe_xml_attribute(group_node, "id"),
                                                                                    NULL)));

        }
        sipe_xml_free(isc);

        /*
         * Subscribe to buddies (if any), but only do it once.
         * We'll resubsribe to them based on the Expire field values.
         */
        if (!SIPE_CORE_PRIVATE_FLAG_IS(SUBSCRIBED_BUDDIES) &&
            g_hash_table_size(sipe_private->buddies)) {
                if (SIPE_CORE_PRIVATE_FLAG_IS(BATCHED_SUPPORT)) {
                        sipe_subscribe_presence_batched(sipe_private);
                } else {
                        g_hash_table_foreach(sipe_private->buddies,
                                             (GHFunc)sipe_buddy_subscribe_cb,
                                             sipe_private);
                }
                SIPE_CORE_PRIVATE_FLAG_SET(SUBSCRIBED_BUDDIES);
        }

        /* for 2005 systems schedule contacts' status update
         * based on their calendar information
         */
        if (!SIPE_CORE_PRIVATE_FLAG_IS(OCS2007)) {
                sipe_ocs2005_schedule_status_update(sipe_private, time(NULL));
        }

        return 0;
}

static void sipe_process_roaming_acl(struct sipe_core_private *sipe_private,
                                     struct sipmsg *msg)
{
        guint delta;
        sipe_xml *xml;

        xml = sipe_xml_parse(msg->body, msg->bodylen);
        if (!xml)
                return;

        /* [MS-SIP]: deltaNum MUST be non-zero */
        delta = sipe_xml_int_attribute(xml, "deltaNum", 0);
        if (delta) {
                sipe_private->deltanum_acl = delta;
        }

        sipe_xml_free(xml);
}

struct sipe_auth_job {
        gchar *who;
        struct sipe_core_private *sipe_private;
};

void sipe_core_contact_allow_deny(struct sipe_core_public *sipe_public,
                                  const gchar* who,
                                  gboolean allow)
{
        struct sipe_core_private *sipe_private = SIPE_CORE_PRIVATE;

        if (allow) {
                SIPE_DEBUG_INFO("sipe_core_contact_allow_deny: authorizing contact %s", who);
        } else {
                SIPE_DEBUG_INFO("sipe_core_contact_allow_deny: blocking contact %s", who);
        }

        if (SIPE_CORE_PRIVATE_FLAG_IS(OCS2007)) {
                sipe_ocs2007_change_access_level(sipe_private,
                                                 (allow ? -1 : 32000),
                                                 "user",
                                                 sipe_get_no_sip_uri(who));
        } else {
                sip_soap_ocs2005_setacl(sipe_private, who, allow);
        }
}


static void sipe_auth_user_cb(gpointer data)
{
        struct sipe_auth_job *job = (struct sipe_auth_job *) data;
        if (!job) return;

        sipe_core_contact_allow_deny((struct sipe_core_public *)job->sipe_private,
                                     job->who,
                                     TRUE);
        g_free(job);
}

static void sipe_deny_user_cb(gpointer data)
{
        struct sipe_auth_job *job = (struct sipe_auth_job *) data;
        if (!job) return;

        sipe_core_contact_allow_deny((struct sipe_core_public *)job->sipe_private,
                                     job->who,
                                     FALSE);
        g_free(job);
}

/* OCS2005- */
static void sipe_process_presence_wpending (struct sipe_core_private *sipe_private,
                                            struct sipmsg * msg)
{
        sipe_xml *watchers;
        const sipe_xml *watcher;
        // Ensure it's either not a response (eg it's a BENOTIFY) or that it's a 200 OK response
        if (msg->response != 0 && msg->response != 200) return;

        if (msg->bodylen == 0 || msg->body == NULL || sipe_strequal(sipmsg_find_header(msg, "Event"), "msrtc.wpending")) return;

        watchers = sipe_xml_parse(msg->body, msg->bodylen);
        if (!watchers) return;

        for (watcher = sipe_xml_child(watchers, "watcher"); watcher; watcher = sipe_xml_twin(watcher)) {
                gchar * remote_user = g_strdup(sipe_xml_attribute(watcher, "uri"));
                gchar * alias = g_strdup(sipe_xml_attribute(watcher, "displayName"));
                gboolean on_list = g_hash_table_lookup(sipe_private->buddies, remote_user) != NULL;

                // TODO pull out optional displayName to pass as alias
                if (remote_user) {
                        struct sipe_auth_job * job = g_new0(struct sipe_auth_job, 1);
                        job->who = remote_user;
                        job->sipe_private = sipe_private;
                        sipe_backend_buddy_request_authorization(SIPE_CORE_PUBLIC,
                                                                 remote_user,
                                                                 alias,
                                                                 on_list,
                                                                 sipe_auth_user_cb,
                                                                 sipe_deny_user_cb,
                                                                 (gpointer)job);
                }
        }


        sipe_xml_free(watchers);
        return;
}

/**
 * Dispatcher for all incoming subscription information
 * whether it comes from NOTIFY, BENOTIFY requests or
 * piggy-backed to subscription's OK responce.
 */
void process_incoming_notify(struct sipe_core_private *sipe_private,
                             struct sipmsg *msg)
{
        const gchar *content_type = sipmsg_find_header(msg, "Content-Type");
        const gchar *event = sipmsg_find_header(msg, "Event");
        const gchar *subscription_state = sipmsg_find_header(msg, "subscription-state");

        SIPE_DEBUG_INFO("process_incoming_notify: subscription_state: %s", subscription_state ? subscription_state : "");

        /* implicit subscriptions */
        if (content_type && g_str_has_prefix(content_type, "application/ms-imdn+xml")) {
                sipe_process_imdn(sipe_private, msg);

        /* event subscriptions */
        } else if (event) {

                /* One-off subscriptions - sent with "Expires: 0" */
                if (sipe_strcase_equal(event, "vnd-microsoft-provisioning-v2")) {
                        sipe_process_provisioning_v2(sipe_private, msg);
                } else if (sipe_strcase_equal(event, "vnd-microsoft-provisioning")) {
                        sipe_process_provisioning(sipe_private, msg);
                } else if (sipe_strcase_equal(event, "presence")) {
                        sipe_process_presence(sipe_private, msg);
                } else if (sipe_strcase_equal(event, "registration-notify")) {
                        sipe_process_registration_notify(sipe_private, msg);

                /* Subscriptions with timeout */
                } else if (!subscription_state || strstr(subscription_state, "active")) {
                        if (sipe_strcase_equal(event, "vnd-microsoft-roaming-contacts")) {
                                sipe_process_roaming_contacts(sipe_private, msg);
                        } else if (sipe_strcase_equal(event, "vnd-microsoft-roaming-self")) {
                                sipe_ocs2007_process_roaming_self(sipe_private, msg);
                        } else if (sipe_strcase_equal(event, "vnd-microsoft-roaming-ACL")) {
                                sipe_process_roaming_acl(sipe_private, msg);
                        } else if (sipe_strcase_equal(event, "presence.wpending")) {
                                sipe_process_presence_wpending(sipe_private, msg);
                        } else if (sipe_strcase_equal(event, "conference")) {
                                sipe_process_conference(sipe_private, msg);
                        }
                }
        }
}

/*
  Local Variables:
  mode: c
  c-file-style: "bsd"
  indent-tabs-mode: t
  tab-width: 8
  End:
*/