/**
* Synchronize CardDAV-Addressbook
*
* @param array $server CardDAV server array
* @param integer $carddav_contact_id CardDAV contact id
* @param string $vcard_id vCard id
* @return boolean if no error occurred "true" else "false"
*/
function carddav_addressbook_sync($server, $carddav_contact_id = null, $vcard_id = null, $start = 0, $timeout = 29)
{
$any_data_synced = false;
$this->write_log('Starting CardDAV-Addressbook synchronization');
$carddav_backend = new carddav_backend($server['url']);
if ($this->rc->decrypt($server['password']) == '%p') {
$server['password'] = $this->rcpassword;
}
$carddav_backend->set_auth($server['username'], $this->rc->decrypt($server['password']), $server['authtype']);
if ($carddav_backend->check_connection()) {
$this->write_log('Connected to the CardDAV-Server ' . $server['url']);
if ($vcard_id !== null) {
// server does not support REPORT request
$noreport = $this->rc->config->get('carddav_noreport', array());
if ($noreport[$server['url']]) {
$elements = $carddav_backend->get_xml_vcard($vcard_id);
} else {
$elements = false;
}
try {
$xml = new SimpleXMLElement($elements);
if (count($xml->element) < 1) {
$elements = false;
}
} catch (Exception $e) {
$elements = false;
}
if ($elements === false) {
$elements = $carddav_backend->get(false);
$this->filter = null;
$carddav_addressbook_contacts = $this->get_carddav_addressbook_contacts();
if (!isset($noreport[$server['url']])) {
$a_prefs['carddav_noreport'][$server['url']] = 1;
$this->rc->user->save_prefs($a_prefs);
}
} else {
if ($carddav_contact_id) {
$carddav_addressbook_contact = $this->get_carddav_addressbook_contact($carddav_contact_id);
$carddav_addressbook_contacts = array($carddav_addressbook_contact['vcard_id'] => $carddav_addressbook_contact);
}
}
} else {
$elements = $carddav_backend->get(false);
$carddav_addressbook_contacts = $this->get_carddav_addressbook_contacts();
}
try {
$xml = new SimpleXMLElement($elements);
if (!empty($xml->element)) {
foreach ($xml->element as $element) {
if ($start != 0 && time() - $start >= $timeout) {
return null;
}
$element_id = (string) $element->id;
$element_etag = (string) $element->etag;
$element_last_modified = (string) $element->last_modified;
if (isset($carddav_addressbook_contacts[$element_id])) {
if ($carddav_addressbook_contacts[$element_id]['etag'] != $element_etag || $carddav_addressbook_contacts[$element_id]['last_modified'] != $element_last_modified) {
$carddav_content = array('vcard' => $carddav_backend->get_vcard($element_id), 'vcard_id' => $element_id, 'etag' => $element_etag, 'last_modified' => $element_last_modified);
if ($this->carddav_addressbook_update($carddav_content)) {
$any_data_synced = true;
}
}
} else {
$carddav_content = array('vcard' => $carddav_backend->get_vcard($element_id), 'vcard_id' => $element_id, 'etag' => $element_etag, 'last_modified' => $element_last_modified);
if (!empty($carddav_content['vcard'])) {
if ($this->carddav_addressbook_add($carddav_content)) {
$any_data_synced = true;
}
}
}
unset($carddav_addressbook_contacts[$element_id]);
}
} else {
$logging_message = 'No CardDAV XML-Element found!';
if ($carddav_contact_id !== null && $vcard_id !== null) {
$this->write_log($logging_message . ' The CardDAV-Server does not have a contact with the vCard id ' . $vcard_id);
} else {
$this->write_log($logging_message . ' The CardDAV-Server seems to have no contacts');
}
}
if (!empty($carddav_addressbook_contacts)) {
foreach ($carddav_addressbook_contacts as $vcard_id => $etag) {
if ($this->carddav_addressbook_delete($vcard_id)) {
$any_data_synced = true;
}
}
}
if ($any_data_synced === false) {
$this->write_log('all CardDAV-Data are synchronous, nothing todo!');
}
$this->write_log('Syncronization complete!');
} catch (Exception $e) {
$this->write_log('CardDAV-Server XML-Response is malformed. Synchronization aborted!');
return false;
}
} else {
$this->write_log('Couldn\'t connect to the CardDAV-Server ' . $server['url']);
return false;
}
return true;
}
$address_list_total_update = count($address_list_update);
unset($address_list_xml);
unset($address_list_array);
unset($address_list_all);
$log->info("[contacts] Total of {$address_list_total_all} contacts, need to update/fetch {$address_list_total_update} of them");
/*
Fetch any new contacts
*/
if (!empty($address_list_update)) {
$i = 0;
foreach ($address_list_update as $id) {
$i++;
$log->info("[contacts] Fetching contact {$id} ({$i}/{$address_list_total_all})");
// download vcard to offline space. We use touch to set the mtime of the file
// so that we can check if it's changed without re-downloading
if (!($vcard = $carddav->get_vcard($id))) {
$log->error("[contacts] Error reading contact {$id}, skipping");
} else {
$vcard_array = split("\r\n", $vcard);
$timestamp = null;
$name = null;
foreach ($vcard_array as $line) {
if (preg_match("/^REV:([0-9]*)-([0-9]*)-([0-9]*)T([0-9]*):([0-9]*):([0-9]*)/", $line, $matches)) {
$timestamp = mktime($matches[4], $matches[5], $matches[6], $matches[2], $matches[3], $matches[1]);
}
if (preg_match("/^FN:([\\S\\s]*)/", $line, $matches)) {
$name = $matches[1];
}
}
$log->debug("[contacts] Downloaded Vcard for {$name}");
$log->debug("[contacts] Last modified at {$timestamp}");
