/**
* This function launches an error
* @param boolean $caldav_context Whether we are responding via CalDAV or interactively
* @param int $user_no the user who will receive this ics file
* @param string $path the $path where the PUT failed to store such as /user_foo/home/
* @param string $message An optional error message to return to the client
* @param int $error_no An optional value for the HTTP error code
*/
function rollback_on_error($caldav_context, $user_no, $path, $message = '', $error_no = 500)
{
global $c, $bad_events;
if (!$message) {
$message = translate('Database error');
}
$qry = new AwlQuery();
if ($qry->TransactionState() != 0) {
$qry->Rollback();
}
if ($caldav_context) {
if (isset($bad_events) && isset($c->skip_bad_event_on_import) && $c->skip_bad_event_on_import) {
$bad_events[] = $message;
} else {
global $request;
$request->DoResponse($error_no, $message);
}
// and we don't return from that, ever...
}
$c->messages[] = sprintf(translate('Status: %d, Message: %s, User: %d, Path: %s'), $error_no, $message, $user_no, $path);
}
/**
CREATE TABLE addressbook_address_email (
dav_id INT8 NOT NULL REFERENCES caldav_data(dav_id) ON UPDATE CASCADE ON DELETE CASCADE,
type TEXT,
email TEXT,
property TEXT -- The full text of the property
);
*/
function WriteEmails($dav_id)
{
$emails = $this->GetProperties('EMAIL');
$qry = new AwlQuery();
// Only run a local transaction if we're not in one already.
$in_transaction = $qry->TransactionState() == 1;
if (!$in_transaction) {
$qry->Begin();
}
$params = array(':dav_id' => $dav_id);
$qry->QDo('DELETE FROM addressbook_address_email WHERE dav_id = :dav_id', $params);
foreach ($emails as $email) {
$params[':type'] = $email->GetParameterValue('TYPE');
$params[':email'] = $email->Value();
$params[':property'] = $email->Render();
$qry->QDo('INSERT INTO addressbook_address_email (dav_id, type, email, property) VALUES( :dav_id, :type, :email, :property)', $params);
}
if (!$in_transaction) {
$qry->Commit();
}
}
/**
* Writes the data to a member in the collection and returns the segment_name of the
* resource in our internal namespace.
*
* @param vCalendar $vcal The resource to be written.
* @param boolean $create_resource True if this is a new resource.
* @param boolean $do_scheduling True if we should also do scheduling for this write. Default false.
* @param string $segment_name The name of the resource within the collection, or null if this
* call should invent one based on the UID of the vCalendar.
* @param boolean $log_action Whether to log this action. Defaults to false since this is normally called
* in situations where one is writing secondary data.
* @return string The segment_name of the resource within the collection, as written, or false on failure.
*/
function WriteCalendarMember(vCalendar $vcal, $create_resource, $do_scheduling = false, $segment_name = null, $log_action = false)
{
if (!$this->IsSchedulingCollection() && !$this->IsCalendar()) {
dbg_error_log('PUT', '"%s" is not a calendar or scheduling collection!', $this->dav_name);
return false;
}
global $session, $caldav_context;
$resources = $vcal->GetComponents('VTIMEZONE', false);
// Not matching VTIMEZONE
$user_no = $this->user_no();
$collection_id = $this->collection_id();
if (!isset($resources[0])) {
dbg_error_log('PUT', 'No calendar content!');
rollback_on_error($caldav_context, $user_no, $this->dav_name . '/' . $segment_name, translate('No calendar content'), 412);
return false;
} else {
$first = $resources[0];
$resource_type = $first->GetType();
}
$uid = $vcal->GetUID();
if (empty($segment_name)) {
$segment_name = $uid . '.ics';
}
$path = $this->dav_name() . $segment_name;
$caldav_data = $vcal->Render();
$etag = md5($caldav_data);
$weak_etag = null;
$qry = new AwlQuery();
$existing_transaction_state = $qry->TransactionState();
if ($existing_transaction_state == 0) {
$qry->Begin();
}
if ($create_resource) {
$qry->QDo('SELECT nextval(\'dav_id_seq\') AS dav_id');
} else {
$qry->QDo('SELECT dav_id FROM caldav_data WHERE dav_name = :dav_name ', array(':dav_name' => $path));
}
if ($qry->rows() != 1 || !($row = $qry->Fetch())) {
if (!$create_resource) {
// Looks like we will have to create it, even if the caller thought we wouldn't
$qry->QDo('SELECT nextval(\'dav_id_seq\') AS dav_id');
if ($qry->rows() != 1 || !($row = $qry->Fetch())) {
// No dav_id? => We're toast!
trace_bug('No dav_id for "%s" on %s!!!', $path, $create_resource ? 'create' : 'update');
rollback_on_error($caldav_context, $user_no, $path);
return false;
}
$create_resource = true;
dbg_error_log('PUT', 'Unexpected need to create resource at "%s"', $path);
}
}
$dav_id = $row->dav_id;
$calitem_params = array(':dav_name' => $path, ':user_no' => $user_no, ':etag' => $etag, ':dav_id' => $dav_id);
$dav_params = array_merge($calitem_params, array(':dav_data' => $caldav_data, ':caldav_type' => $resource_type, ':session_user' => $session->user_no, ':weak_etag' => $weak_etag));
if (!$this->IsSchedulingCollection() && $do_scheduling) {
if (do_scheduling_requests($vcal, $create_resource)) {
$dav_params[':dav_data'] = $vcal->Render(null, true);
$etag = null;
}
}
if ($create_resource) {
$sql = 'INSERT INTO caldav_data ( dav_id, user_no, dav_name, dav_etag, caldav_data, caldav_type, logged_user, created, modified, collection_id, weak_etag )
VALUES( :dav_id, :user_no, :dav_name, :etag, :dav_data, :caldav_type, :session_user, current_timestamp, current_timestamp, :collection_id, :weak_etag )';
$dav_params[':collection_id'] = $collection_id;
} else {
$sql = 'UPDATE caldav_data SET caldav_data=:dav_data, dav_etag=:etag, caldav_type=:caldav_type, logged_user=:session_user,
modified=current_timestamp, weak_etag=:weak_etag WHERE dav_id=:dav_id';
}
if (!$qry->QDo($sql, $dav_params)) {
rollback_on_error($caldav_context, $user_no, $path);
return false;
}
$dtstart = $first->GetPValue('DTSTART');
$calitem_params[':dtstart'] = $dtstart;
if ((!isset($dtstart) || $dtstart == '') && $first->GetPValue('DUE') != '') {
$dtstart = $first->GetPValue('DUE');
}
$dtend = $first->GetPValue('DTEND');
if (isset($dtend) && $dtend != '') {
dbg_error_log('PUT', ' DTEND: "%s", DTSTART: "%s", DURATION: "%s"', $dtend, $dtstart, $first->GetPValue('DURATION'));
$calitem_params[':dtend'] = $dtend;
$dtend = ':dtend';
} else {
$dtend = 'NULL';
if ($first->GetPValue('DURATION') != '' and $dtstart != '') {
$duration = preg_replace('#[PT]#', ' ', $first->GetPValue('DURATION'));
$dtend = '(:dtstart::timestamp with time zone + :duration::interval)';
$calitem_params[':duration'] = $duration;
} elseif ($first->GetType() == 'VEVENT') {
/**
* From RFC2445 4.6.1:
* For cases where a "VEVENT" calendar component specifies a "DTSTART"
* property with a DATE data type but no "DTEND" property, the events
* non-inclusive end is the end of the calendar date specified by the
* "DTSTART" property. For cases where a "VEVENT" calendar component specifies
* a "DTSTART" property with a DATE-TIME data type but no "DTEND" property,
* the event ends on the same calendar date and time of day specified by the
* "DTSTART" property.
*
* So we're looking for 'VALUE=DATE', to identify the duration, effectively.
*
*/
$value_type = $first->GetPParamValue('DTSTART', 'VALUE');
dbg_error_log('PUT', 'DTSTART without DTEND. DTSTART value type is %s', $value_type);
if (isset($value_type) && $value_type == 'DATE') {
$dtend = '(:dtstart::timestamp with time zone::date + \'1 day\'::interval)';
} else {
$dtend = ':dtstart';
}
}
}
$last_modified = $first->GetPValue('LAST-MODIFIED');
if (!isset($last_modified) || $last_modified == '') {
$last_modified = gmdate('Ymd\\THis\\Z');
}
$calitem_params[':modified'] = $last_modified;
$dtstamp = $first->GetPValue('DTSTAMP');
if (!isset($dtstamp) || $dtstamp == '') {
$dtstamp = $last_modified;
}
$calitem_params[':dtstamp'] = $dtstamp;
$class = $first->GetPValue('CLASS');
/*
* It seems that some calendar clients don't set a class...
* RFC2445, 4.8.1.3: Default is PUBLIC
*/
if ($this->IsPublicOnly() || !isset($class) || $class == '') {
$class = 'PUBLIC';
}
$calitem_params[':class'] = $class;
/** Calculate what timezone to set, first, if possible */
$last_olson = 'Turkmenikikamukau';
// I really hope this location doesn't exist!
$tzid = self::GetTZID($first);
if (!empty($tzid)) {
$tz = $vcal->GetTimeZone($tzid);
$olson = $vcal->GetOlsonName($tz);
if (!empty($olson) && $olson != $last_olson) {
dbg_error_log('PUT', ' Setting timezone to %s', $olson);
$qry->QDo('SET TIMEZONE TO \'' . $olson . "'");
$last_olson = $olson;
}
}
$created = $first->GetPValue('CREATED');
if ($created == '00001231T000000Z') {
$created = '20001231T000000Z';
}
$calitem_params[':created'] = $created;
$calitem_params[':tzid'] = $tzid;
$calitem_params[':uid'] = $uid;
$calitem_params[':summary'] = $first->GetPValue('SUMMARY');
$calitem_params[':location'] = $first->GetPValue('LOCATION');
$calitem_params[':transp'] = $first->GetPValue('TRANSP');
$calitem_params[':description'] = $first->GetPValue('DESCRIPTION');
$calitem_params[':rrule'] = $first->GetPValue('RRULE');
$calitem_params[':url'] = $first->GetPValue('URL');
$calitem_params[':priority'] = $first->GetPValue('PRIORITY');
$calitem_params[':due'] = $first->GetPValue('DUE');
$calitem_params[':percent_complete'] = $first->GetPValue('PERCENT-COMPLETE');
$calitem_params[':status'] = $first->GetPValue('STATUS');
if ($create_resource) {
$sql = <<<EOSQL
INSERT INTO calendar_item (user_no, dav_name, dav_id, dav_etag, uid, dtstamp,
dtstart, dtend, summary, location, class, transp,
description, rrule, tz_id, last_modified, url, priority,
created, due, percent_complete, status, collection_id )
VALUES ( :user_no, :dav_name, currval('dav_id_seq'), :etag, :uid, :dtstamp,
:dtstart, {$dtend}, :summary, :location, :class, :transp,
:description, :rrule, :tzid, :modified, :url, :priority,
:created, :due, :percent_complete, :status, {$collection_id} )
EOSQL;
$sync_change = 201;
} else {
$sql = <<<EOSQL
UPDATE calendar_item SET dav_etag=:etag, uid=:uid, dtstamp=:dtstamp,
dtstart=:dtstart, dtend={$dtend}, summary=:summary, location=:location, class=:class, transp=:transp,
description=:description, rrule=:rrule, tz_id=:tzid, last_modified=:modified, url=:url, priority=:priority,
created=:created, due=:due, percent_complete=:percent_complete, status=:status
WHERE user_no=:user_no AND dav_name=:dav_name
EOSQL;
$sync_change = 200;
}
if (!$this->IsSchedulingCollection()) {
$this->WriteCalendarAlarms($dav_id, $vcal);
$this->WriteCalendarAttendees($dav_id, $vcal);
$put_action_type = $create_resource ? 'INSERT' : 'UPDATE';
if ($log_action && function_exists('log_caldav_action')) {
log_caldav_action($put_action_type, $first->GetPValue('UID'), $user_no, $collection_id, $path);
} else {
if ($log_action) {
dbg_error_log('PUT', 'No log_caldav_action( %s, %s, %s, %s, %s) can be called.', $put_action_type, $first->GetPValue('UID'), $user_no, $collection_id, $path);
}
}
}
$qry = new AwlQuery($sql, $calitem_params);
if (!$qry->Exec('PUT', __LINE__, __FILE__)) {
rollback_on_error($caldav_context, $user_no, $path);
return false;
}
$qry->QDo("SELECT write_sync_change( {$collection_id}, {$sync_change}, :dav_name)", array(':dav_name' => $path));
if ($existing_transaction_state == 0) {
$qry->Commit();
}
dbg_error_log('PUT', 'User: %d, ETag: %s, Path: %s', $session->user_no, $etag, $path);
return $segment_name;
}
