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Fully converted to use iCalComponent rather than iCalendar.

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This commit is contained in:
Andrew McMillan 2008-11-12 22:15:49 +13:00
parent f830640b12
commit 6bb94f5e7f
1 changed files with 100 additions and 53 deletions
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153
inc/caldav-GET.php
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@ -10,13 +10,11 @@
*/
dbg_error_log("get", "GET method handler");
require_once("iCalendar.php");
if ( ! $request->AllowedTo('read') ) {
$request->DoResponse( 403, translate("You may not access that calendar") );
}
$privacy_clause = "";
if ( ! $request->AllowedTo('all') ) {
$privacy_clause = "AND (calendar_item.class != 'PRIVATE' OR calendar_item.class IS NULL) ";
}
if ( $request->IsCollection() ) {
/**
@ -24,10 +22,10 @@ if ( $request->IsCollection() ) {
* used as a .ics download for the whole collection, which is what we do also.
*/
$order_clause = ( isset($c->strict_result_ordering) && $c->strict_result_ordering ? " ORDER BY dav_id" : "");
$qry = new PgQuery( "SELECT caldav_data, class, caldav_type, calendar_item.user_no FROM caldav_data INNER JOIN calendar_item USING ( dav_id ) WHERE caldav_data.user_no = ? AND caldav_data.dav_name ~ ? $privacy_clause $order_clause", $request->user_no, $request->path.'[^/]+$');
$qry = new PgQuery( "SELECT caldav_data, class, caldav_type, calendar_item.user_no, logged_user FROM caldav_data INNER JOIN calendar_item USING ( dav_id ) WHERE caldav_data.user_no = ? AND caldav_data.dav_name ~ ? $order_clause", $request->user_no, $request->path.'[^/]+$');
}
else {
$qry = new PgQuery( "SELECT caldav_data, caldav_data.dav_etag, class, caldav_type, calendar_item.user_no FROM caldav_data INNER JOIN calendar_item USING ( dav_id ) WHERE caldav_data.user_no = ? AND caldav_data.dav_name = ? $privacy_clause;", $request->user_no, $request->path);
$qry = new PgQuery( "SELECT caldav_data, caldav_data.dav_etag, class, caldav_type, calendar_item.user_no, logged_user FROM caldav_data INNER JOIN calendar_item USING ( dav_id ) WHERE caldav_data.user_no = ? AND caldav_data.dav_name = ? ;", $request->user_no, $request->path);
}
if ( !$qry->Exec("GET") ) {
@ -35,6 +33,48 @@ if ( !$qry->Exec("GET") ) {
}
else if ( $qry->rows == 1 ) {
$event = $qry->Fetch();
/** Default deny... */
$allowed = false;
if ( $request->AllowedTo('all') || $session->user_no == $event->user_no || $session->user_no == $event->logged_user
|| ( $c->allow_get_email_visibility && $resource->IsAttendee($session->email) ) ) {
/**
* These people get to see all of the event, and they should always
* get any alarms as well.
*/
$allowed = true;
}
else if ( $event->class != 'PRIVATE' ) {
if ( $event->class == 'CONFIDENTIAL' && ! $request->AllowedTo('modify') ) {
// if the event is confidential we fake one that just says "Busy"
$confidential = new iCalComponent();
$confidential->SetType($first->GetType());
$confidential->AddProperty( 'SUMMARY', translate('Busy') );
$confidential->AddProperty( 'CLASS', 'CONFIDENTIAL' );
$confidential->SetProperties( $first->GetProperties('DTSTART'), 'DTSTART' );
$confidential->SetProperties( $first->GetProperties('RRULE'), 'RRULE' );
$confidential->SetProperties( $first->GetProperties('DURATION'), 'DURATION' );
$confidential->SetProperties( $first->GetProperties('DTEND'), 'DTEND' );
$vcal = new iCalComponent();
$vcal->VCalendar();
$vcal->AddComponent($confidential);
$event->caldav_data = $vcal->Render();
$allowed = true;
}
else {
/**
* We don't do the hide_alarm nonsense here. It only really ever applied to Mozilla,
* it's fixed in 0.8+ anyway and Mozilla doesn't do GET requests... :-)
*/
$allowed = true;
}
}
if ( ! $allowed ) {
$request->DoResponse( 403, translate("Forbidden") );
}
header( "Etag: \"$event->dav_etag\"" );
header( "Content-Length: ".strlen($event->caldav_data) );
$request->DoResponse( 200, ($request->method == "HEAD" ? "" : $event->caldav_data), "text/calendar" );
@ -47,69 +87,76 @@ else {
* Here we are constructing a whole calendar response for this collection, including
* the timezones that are referred to by the events we have selected.
*/
include_once("iCalendar.php");
$response = iCalendar::iCalHeader();
$vcal = new iCalComponent();
$vcal->VCalendar( array("X-WR-CALNAME" => $request->collection->dav_displayname ) );
/**
* @todo CalDAVRequest should have read the collection record, so we should not have to reread it here
* @todo This should be structured to not use the iCalHeader() and iCalFooter methods. See caldav-POST.php for the bones of a better approach.
*/
$collqry = new PgQuery( "SELECT * FROM collection WHERE collection.user_no = ? AND collection.dav_name = ?;", $request->user_no, $request->path);
if ( $collqry->Exec("GET") && $collection = $collqry->Fetch() ) {
$response .= "X-WR-CALNAME:$collection->dav_displayname\r\n";
}
$need_zones = array();
$timezones = array();
while( $event = $qry->Fetch() ) {
$ical = new iCalendar( array( "icalendar" => $event->caldav_data ) );
$timezones[$ical->Get("TZID")] = 1;
$ical = new iCalComponent( $event->caldav_data );
/** Save the timezone component(s) into a minimal set for inclusion later */
$event_zones = $ical->GetComponents('VTIMEZONE',true);
foreach( $event_zones AS $k => $tz ) {
$tzid = $tz->GetPValue('TZID');
if ( !isset($tzid) ) continue ;
if ( $tzid != '' && !isset($timezones[$tzid]) ) {
$timezones[$tzid] = $tz;
}
}
/** Work out which ones are actually used here */
$resources = $ical->GetComponents('VTIMEZONE',false);
foreach( $resources AS $k => $resource ) {
$tzid = $resource->GetPParamValue('DTSTART', 'TZID'); if ( isset($tzid) && !isset($need_zones[$tzid]) ) $need_zones[$tzid] = 1;
$tzid = $resource->GetPParamValue('DUE', 'TZID'); if ( isset($tzid) && !isset($need_zones[$tzid]) ) $need_zones[$tzid] = 1;
$tzid = $resource->GetPParamValue('DTEND', 'TZID'); if ( isset($tzid) && !isset($need_zones[$tzid]) ) $need_zones[$tzid] = 1;
if ( $request->AllowedTo('all') || $session->user_no == $event->user_no || $session->user_no == $event->logged_user
|| ( $c->allow_get_email_visibility && $resource->IsAttendee($session->email) ) ) {
/**
* These people get to see all of the event, and they should always
* get any alarms as well.
*/
$vcal->AddComponent($resource);
continue;
}
/** No visibility even of the existence of these events if they aren't admin/owner/attendee */
if ( $event->class == 'PRIVATE' ) continue;
if ( !$request->AllowedTo('all') && $session->user_no != $event->user_no ){
// the user is not admin / owner of this calendarlooking at his calendar and can not admin the other cal
if ( $event->class == 'CONFIDENTIAL' ) {
// if the event is confidential we fake one that just says "Busy"
$confidential = new iCalendar( array(
'SUMMARY' => translate('Busy'), 'CLASS' => 'CONFIDENTIAL',
'DTSTART' => $ical->Get('DTSTART')
) );
$rrule = $ical->Get('RRULE');
if ( isset($rrule) && $rrule != '' ) $confidential->Set('RRULE', $rrule);
$duration = $ical->Get('DURATION');
if ( isset($duration) && $duration != "" ) {
$confidential->Set('DURATION', $duration );
}
else {
$confidential->Set('DTEND', $ical->Get('DTEND') );
}
$response .= $confidential->Render( false, $event->caldav_type );
$confidential = new iCalComponent();
$confidential->SetType($first->GetType());
$confidential->AddProperty( 'SUMMARY', translate('Busy') );
$confidential->AddProperty( 'CLASS', 'CONFIDENTIAL' );
$confidential->SetProperties( $first->GetProperties('DTSTART'), 'DTSTART' );
$confidential->SetProperties( $first->GetProperties('RRULE'), 'RRULE' );
$confidential->SetProperties( $first->GetProperties('DURATION'), 'DURATION' );
$confidential->SetProperties( $first->GetProperties('DTEND'), 'DTEND' );
$vcal->AddComponent($confidential);
}
elseif ( isset($c->hide_alarm) && $c->hide_alarm ) {
// Otherwise we hide the alarms (if configured to)
$ical->component->ClearComponents('VALARM');
$response .= $ical->render(true, $event->caldav_type );
$resource->ClearComponents('VALARM');
$vcal->AddComponent($resource);
}
else {
$response .= $ical->Render( false, $event->caldav_type );
}
}
else {
$response .= $ical->Render( false, $event->caldav_type );
}
}
$tzid_in = "";
foreach( $timezones AS $tzid => $v ) {
$tzid_in .= ($tzid_in == '' ? '' : ', ');
$tzid_in .= qpg($tzid);
}
if ( $tzid_in != "" ) {
$qry = new PgQuery("SELECT tz_spec FROM time_zone WHERE tz_id IN ($tzid_in) ORDER BY tz_id;");
if ( $qry->Exec("GET") ) {
while( $tz = $qry->Fetch() ) {
$response .= $tz->tz_spec;
$vcal->AddComponent($resource);
}
}
}
$response .= iCalendar::iCalFooter();
/** Put the timezones on there that we need */
foreach( $need_zones AS $tzid => $v ) {
if ( isset($timezones[$tzid]) ) $vcal->AddComponent($timezones[$tzid]);
}
$response = $vcal->Render();
header( "Content-Length: ".strlen($response) );
header( 'Etag: "'.$request->collection->dav_etag.'"' );
$request->DoResponse( 200, ($request->method == "HEAD" ? "" : $response), "text/calendar" );
}