static void empty_cache (ECalBackendHttp *cbhttp) { ECalBackendHttpPrivate *priv; GSList *comps, *l; priv = cbhttp->priv; if (!priv->store) return; comps = e_cal_backend_store_get_components (priv->store); for (l = comps; l != NULL; l = g_slist_next (l)) { ECalComponentId *id; ECalComponent *comp = l->data; id = e_cal_component_get_id (comp); e_cal_backend_notify_component_removed ((ECalBackend *) cbhttp, id, comp, NULL); e_cal_component_free_id (id); g_object_unref (comp); } g_slist_free (comps); e_cal_backend_store_put_key_value (priv->store, "ETag", NULL); e_cal_backend_store_clean (priv->store); }
/** Store timestamp of last sync. * * @param cb 3E calendar backend. * @param stamp Timestamp in local time. */ void e_cal_backend_3e_set_sync_timestamp(ECalBackend3e *cb, time_t stamp) { g_static_rw_lock_writer_lock(&cb->priv->cache_lock); e_cal_backend_store_put_key_value(cb->priv->store, "server_utc_time", icaltime_as_ical_string(icaltime_from_timet_with_zone(stamp, 0, NULL))); g_static_rw_lock_writer_unlock(&cb->priv->cache_lock); }
static gboolean cal_backend_http_load (ECalBackendHttp *backend, const gchar *uri, gchar **out_certificate_pem, GTlsCertificateFlags *out_certificate_errors, GCancellable *cancellable, GError **error) { ECalBackendHttpPrivate *priv = backend->priv; ETimezoneCache *timezone_cache; SoupMessage *soup_message; SoupSession *soup_session; icalcomponent *icalcomp, *subcomp; icalcomponent_kind kind; const gchar *newuri; SoupURI *uri_parsed; GHashTable *old_cache; GSList *comps_in_cache; ESource *source; guint status_code; gulong cancel_id = 0; struct { SoupSession *soup_session; SoupMessage *soup_message; } cancel_data; timezone_cache = E_TIMEZONE_CACHE (backend); soup_session = backend->priv->soup_session; soup_message = cal_backend_http_new_message (backend, uri); if (soup_message == NULL) { g_set_error ( error, SOUP_HTTP_ERROR, SOUP_STATUS_MALFORMED, _("Malformed URI: %s"), uri); return FALSE; } if (G_IS_CANCELLABLE (cancellable)) { cancel_data.soup_session = soup_session; cancel_data.soup_message = soup_message; cancel_id = g_cancellable_connect ( cancellable, G_CALLBACK (cal_backend_http_cancelled), &cancel_data, (GDestroyNotify) NULL); } source = e_backend_get_source (E_BACKEND (backend)); e_soup_ssl_trust_connect (soup_message, source); e_source_set_connection_status (source, E_SOURCE_CONNECTION_STATUS_CONNECTING); status_code = soup_session_send_message (soup_session, soup_message); if (G_IS_CANCELLABLE (cancellable)) g_cancellable_disconnect (cancellable, cancel_id); if (status_code == SOUP_STATUS_NOT_MODIFIED) { e_source_set_connection_status (source, E_SOURCE_CONNECTION_STATUS_CONNECTED); /* attempts with ETag can result in 304 status code */ g_object_unref (soup_message); priv->opened = TRUE; return TRUE; } /* Handle redirection ourselves */ if (SOUP_STATUS_IS_REDIRECTION (status_code)) { gboolean success; newuri = soup_message_headers_get_list ( soup_message->response_headers, "Location"); d (g_message ("Redirected from %s to %s\n", async_context->uri, newuri)); if (newuri != NULL) { gchar *redirected_uri; if (newuri[0]=='/') { g_warning ("Hey! Relative URI returned! Working around...\n"); uri_parsed = soup_uri_new (uri); soup_uri_set_path (uri_parsed, newuri); soup_uri_set_query (uri_parsed, NULL); /* g_free (newuri); */ newuri = soup_uri_to_string (uri_parsed, FALSE); g_message ("Translated URI: %s\n", newuri); soup_uri_free (uri_parsed); } redirected_uri = webcal_to_http_method (newuri, FALSE); success = cal_backend_http_load ( backend, redirected_uri, out_certificate_pem, out_certificate_errors, cancellable, error); g_free (redirected_uri); } else { g_set_error ( error, SOUP_HTTP_ERROR, SOUP_STATUS_BAD_REQUEST, _("Redirected to Invalid URI")); success = FALSE; } if (success) { e_source_set_connection_status (source, E_SOURCE_CONNECTION_STATUS_CONNECTED); } else { e_source_set_connection_status (source, E_SOURCE_CONNECTION_STATUS_DISCONNECTED); } g_object_unref (soup_message); return success; } /* check status code */ if (!SOUP_STATUS_IS_SUCCESSFUL (status_code)) { /* because evolution knows only G_IO_ERROR_CANCELLED */ if (status_code == SOUP_STATUS_CANCELLED) g_set_error ( error, G_IO_ERROR, G_IO_ERROR_CANCELLED, "%s", soup_message->reason_phrase); else g_set_error ( error, SOUP_HTTP_ERROR, status_code, "%s", soup_message->reason_phrase); if (status_code == SOUP_STATUS_SSL_FAILED) { e_source_set_connection_status (source, E_SOURCE_CONNECTION_STATUS_SSL_FAILED); cal_backend_http_extract_ssl_failed_data (soup_message, out_certificate_pem, out_certificate_errors); } else { e_source_set_connection_status (source, E_SOURCE_CONNECTION_STATUS_DISCONNECTED); } g_object_unref (soup_message); empty_cache (backend); return FALSE; } e_source_set_connection_status (source, E_SOURCE_CONNECTION_STATUS_CONNECTED); if (priv->store) { const gchar *etag; etag = soup_message_headers_get_one ( soup_message->response_headers, "ETag"); if (etag != NULL && *etag == '\0') etag = NULL; e_cal_backend_store_put_key_value (priv->store, "ETag", etag); } /* get the calendar from the response */ icalcomp = icalparser_parse_string (soup_message->response_body->data); if (!icalcomp) { g_set_error ( error, SOUP_HTTP_ERROR, SOUP_STATUS_MALFORMED, _("Bad file format.")); g_object_unref (soup_message); empty_cache (backend); return FALSE; } if (icalcomponent_isa (icalcomp) != ICAL_VCALENDAR_COMPONENT) { g_set_error ( error, SOUP_HTTP_ERROR, SOUP_STATUS_MALFORMED, _("Not a calendar.")); icalcomponent_free (icalcomp); g_object_unref (soup_message); empty_cache (backend); return FALSE; } g_object_unref (soup_message); soup_message = NULL; /* Update cache */ old_cache = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, g_free); comps_in_cache = e_cal_backend_store_get_components (priv->store); while (comps_in_cache != NULL) { const gchar *uid; ECalComponent *comp = comps_in_cache->data; e_cal_component_get_uid (comp, &uid); g_hash_table_insert (old_cache, g_strdup (uid), e_cal_component_get_as_string (comp)); comps_in_cache = g_slist_remove (comps_in_cache, comps_in_cache->data); g_object_unref (comp); } kind = e_cal_backend_get_kind (E_CAL_BACKEND (backend)); subcomp = icalcomponent_get_first_component (icalcomp, ICAL_ANY_COMPONENT); e_cal_backend_store_freeze_changes (priv->store); while (subcomp) { ECalComponent *comp; icalcomponent_kind subcomp_kind; icalproperty *prop = NULL; subcomp_kind = icalcomponent_isa (subcomp); prop = icalcomponent_get_first_property (subcomp, ICAL_UID_PROPERTY); if (!prop && subcomp_kind == kind) { gchar *new_uid = e_cal_component_gen_uid (); icalcomponent_set_uid (subcomp, new_uid); g_free (new_uid); } if (subcomp_kind == kind) { comp = e_cal_component_new (); if (e_cal_component_set_icalcomponent (comp, icalcomponent_new_clone (subcomp))) { const gchar *uid; gpointer orig_key, orig_value; e_cal_component_get_uid (comp, &uid); if (!put_component_to_store (backend, comp)) { g_hash_table_remove (old_cache, uid); } else if (g_hash_table_lookup_extended (old_cache, uid, &orig_key, &orig_value)) { ECalComponent *orig_comp = e_cal_component_new_from_string (orig_value); e_cal_backend_notify_component_modified (E_CAL_BACKEND (backend), orig_comp, comp); g_hash_table_remove (old_cache, uid); if (orig_comp) g_object_unref (orig_comp); } else { e_cal_backend_notify_component_created (E_CAL_BACKEND (backend), comp); } } g_object_unref (comp); } else if (subcomp_kind == ICAL_VTIMEZONE_COMPONENT) { icaltimezone *zone; zone = icaltimezone_new (); icaltimezone_set_component (zone, icalcomponent_new_clone (subcomp)); e_timezone_cache_add_timezone (timezone_cache, zone); icaltimezone_free (zone, 1); } subcomp = icalcomponent_get_next_component (icalcomp, ICAL_ANY_COMPONENT); } e_cal_backend_store_thaw_changes (priv->store); /* notify the removals */ g_hash_table_foreach_remove (old_cache, (GHRFunc) notify_and_remove_from_cache, backend); g_hash_table_destroy (old_cache); /* free memory */ icalcomponent_free (icalcomp); priv->opened = TRUE; return TRUE; }