[evolution-ews/evolution-ews-3-12] Bug 728942 - Fails to pair user with attendee in invitation response

[Milan Crha <mcrha src gnome org>]

commit e4435a7e1aeb83f6246b414e51345c32dabdd67e
Author: Milan Crha <mcrha redhat com>
Date:   Thu Jul 3 18:39:06 2014 +0200

    Bug 728942 - Fails to pair user with attendee in invitation response

 configure.ac                     |    5 ++
 src/calendar/e-cal-backend-ews.c |  115 +++++++++++++++++++++++++++++++++++++-
 2 files changed, 117 insertions(+), 3 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index 3bcf6b2..6333d42 100644
--- a/configure.ac
+++ b/configure.ac
@@ -238,6 +238,11 @@ dnl ****************************
 PKG_CHECK_MODULES(EVOLUTION_MAIL, evolution-mail-3.0 >= evo_minimum_version)
 
 dnl ****************************
+dnl Check for evolution calendar
+dnl ****************************
+PKG_CHECK_MODULES(EVOLUTION_CALENDAR, evolution-calendar-3.0 >= evo_minimum_version)
+
+dnl ****************************
 dnl Check for sqlite3 
 dnl ****************************
 PKG_CHECK_MODULES(SQLITE3, sqlite3)
diff --git a/src/calendar/e-cal-backend-ews.c b/src/calendar/e-cal-backend-ews.c
index 55b61df..5983b12 100644
--- a/src/calendar/e-cal-backend-ews.c
+++ b/src/calendar/e-cal-backend-ews.c
@@ -40,6 +40,8 @@
 #include <libical/icalproperty.h>
 #include <libical/icalparameter.h>
 
+#include <calendar/gui/itip-utils.h>
+
 #include "server/e-source-ews-folder.h"
 
 #include "utils/ews-camel-common.h"
@@ -2127,13 +2129,86 @@ e_ews_receive_objects_no_exchange_mail (ECalBackendEws *cbews,
        e_ews_folder_id_free (fid);
 }
 
+static icalproperty *
+find_attendee (icalcomponent *ical_comp,
+               const gchar *address)
+{
+       icalproperty *prop;
+
+       if (address == NULL)
+               return NULL;
+
+       for (prop = icalcomponent_get_first_property (ical_comp, ICAL_ATTENDEE_PROPERTY);
+            prop != NULL;
+            prop = icalcomponent_get_next_property (ical_comp, ICAL_ATTENDEE_PROPERTY)) {
+               gchar *attendee;
+               gchar *text;
+
+               attendee = icalproperty_get_value_as_string_r (prop);
+
+                if (!attendee)
+                       continue;
+
+               text = g_strdup (itip_strip_mailto (attendee));
+               text = g_strstrip (text);
+               if (text && !g_ascii_strcasecmp (address, text)) {
+                       g_free (text);
+                       g_free (attendee);
+                       break;
+               }
+               g_free (text);
+               g_free (attendee);
+       }
+
+       return prop;
+}
+
+static icalproperty *
+find_attendee_if_sentby (icalcomponent *ical_comp,
+                         const gchar *address)
+{
+       icalproperty *prop;
+
+       if (address == NULL)
+               return NULL;
+
+       for (prop = icalcomponent_get_first_property (ical_comp, ICAL_ATTENDEE_PROPERTY);
+            prop != NULL;
+            prop = icalcomponent_get_next_property (ical_comp, ICAL_ATTENDEE_PROPERTY)) {
+               icalparameter *param;
+               const gchar *attendee_sentby;
+               gchar *text;
+
+               param = icalproperty_get_first_parameter (prop, ICAL_SENTBY_PARAMETER);
+               if (!param)
+                       continue;
+
+               attendee_sentby = icalparameter_get_sentby (param);
+
+               if (!attendee_sentby)
+                       continue;
+
+               text = g_strdup (itip_strip_mailto (attendee_sentby));
+               text = g_strstrip (text);
+               if (text && !g_ascii_strcasecmp (address, text)) {
+                       g_free (text);
+                       break;
+               }
+               g_free (text);
+       }
+
+       return prop;
+}
+
 static const gchar *
-e_ews_get_current_user_meeting_reponse (icalcomponent *icalcomp,
+e_ews_get_current_user_meeting_reponse (ECalBackendEws *cbews,
+                                       icalcomponent *icalcomp,
                                         const gchar *current_user_mail)
 {
        icalproperty *attendee;
        const gchar *attendee_str = NULL, *attendee_mail = NULL;
        gint attendees_count = 0;
+       const gchar *response = NULL;
 
        for (attendee = icalcomponent_get_first_property (icalcomp, ICAL_ATTENDEE_PROPERTY);
                attendee != NULL;
@@ -2157,9 +2232,31 @@ e_ews_get_current_user_meeting_reponse (icalcomponent *icalcomp,
                g_return_val_if_fail (attendee != NULL, NULL);
 
                return icalproperty_get_parameter_as_string (attendee, "PARTSTAT");
+       } else {
+               ESourceRegistry *registry;
+               ECalComponent *comp;
+
+               registry = e_cal_backend_get_registry (E_CAL_BACKEND (cbews));
+               comp = e_cal_component_new ();
+               if (e_cal_component_set_icalcomponent (comp, icalcomponent_new_clone (icalcomp))) {
+                       gchar *my_address;
+
+                       my_address = itip_get_comp_attendee (registry, comp, NULL);
+
+                       attendee = find_attendee (icalcomp, my_address);
+                       if (!attendee)
+                               attendee = find_attendee_if_sentby (icalcomp, my_address);
+
+                       if (attendee)
+                               response = icalproperty_get_parameter_as_string (attendee, "PARTSTAT");
+
+                       g_free (my_address);
+               }
+
+               g_object_unref (comp);
        }
 
-       return NULL;
+       return response;
 }
 
 static void
@@ -2177,6 +2274,11 @@ ews_cal_do_method_request_publish_reply (ECalBackendEws *cbews,
        gint pass = 0;
        GSList *ids = NULL;
 
+       if (!response_type) {
+               g_propagate_error (error, EDC_ERROR (UnknownUser));
+               return;
+       }
+
        ews_cal_component_get_calendar_item_accept_id (comp, &item_id, &change_key, &mail_id);
 
        while (pass < 2) {
@@ -2370,7 +2472,7 @@ e_cal_backend_ews_receive_objects (ECalBackend *backend,
                e_cal_component_set_icalcomponent (comp, icalcomponent_new_clone (subcomp));
 
                /*getting a data for meeting request response*/
-               response_type = e_ews_get_current_user_meeting_reponse (
+               response_type = e_ews_get_current_user_meeting_reponse (cbews,
                        e_cal_component_get_icalcomponent (comp),
                        priv->user_email);
 
@@ -3984,11 +4086,18 @@ e_cal_backend_ews_get_destination_address (EBackend *backend,
 static void
 e_cal_backend_ews_constructed (GObject *object)
 {
+       ECalBackendEws *cbews = E_CAL_BACKEND_EWS (object);
+       CamelEwsSettings *ews_settings;
+
        G_OBJECT_CLASS (e_cal_backend_ews_parent_class)->constructed (object);
 
        /* Reset the connectable, it steals data from Authentication extension,
           where is written incorrect address */
        e_backend_set_connectable (E_BACKEND (object), NULL);
+
+       ews_settings = cal_backend_ews_get_collection_settings (cbews);
+       g_warn_if_fail (cbews->priv->user_email == NULL);
+       cbews->priv->user_email = camel_ews_settings_dup_email (ews_settings);
 }
 
 static void