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;
}
