inc/caldav-PUT-vcard.php

   1 <?php
   2 /**
   3 * CalDAV Server - handle PUT method on VCARD content-types
   4 *
   5 * @package   davical
   6 * @subpackage   caldav
   7 * @author    Andrew McMillan <andrew@morphoss.com>
   8 * @copyright Morphoss Ltd
   9 * @license   http://gnu.org/copyleft/gpl.html GNU GPL v2 or later
  10 */
  11 dbg_error_log("PUT", "method handler");
  12
  13 require_once('DAVResource.php');
  14
  15 if ( ! ini_get('open_basedir') && (isset($c->dbg['ALL']) || (isset($c->dbg['put']) && $c->dbg['put'])) ) {
  16   $fh = fopen('/tmp/PUT.txt','w');
  17   if ( $fh ) {
  18     fwrite($fh,$request->raw_post);
  19     fclose($fh);
  20   }
  21 }
  22
  23 $lock_opener = $request->FailIfLocked();
  24
  25 $dest = new DAVResource($request->path);
  26
  27 $container = $dest->GetParentContainer();
  28 if ( ! $dest->Exists() ) {
  29   if ( $container->IsPrincipal() ) {
  30     $request->PreconditionFailed(405,'method-not-allowed',translate('A DAViCal principal collection may only contain collections'));
  31   }
  32   if ( ! $container->Exists() ) {
  33     $request->PreconditionFailed( 409, 'collection-must-exist',translate('The destination collection does not exist') );
  34   }
  35   $container->NeedPrivilege('DAV::bind');
  36 }
  37 else {
  38   if ( $dest->IsCollection() ) {
  39     if ( ! isset($c->readonly_webdav_collections) || $c->readonly_webdav_collections ) {
  40       $request->PreconditionFailed(405,'method-not-allowed',translate('You may not PUT to a collection URL'));
  41     }
  42     $request->DoResponse(403,translate('PUT on a collection is only allowed for text/vcard content against an addressbook collection'));
  43   }
  44   $dest->NeedPrivilege('DAV::write-content');
  45 }
  46
  47 if ( isset($request->etag_none_match) && $request->etag_none_match != '*' && $dest->Exists() ) {
  48   $request->PreconditionFailed(412,'if-none-match', translate('A resource already exists at the destination.'));
  49 }
  50
  51 if ( isset($request->etag_if_match) && $request->etag_if_match != $dest->unique_tag() ) {
  52   $request->PreconditionFailed(412,'if-match',sprintf('Existing resource ETag of "%s" does not match "%s"', $dest->unique_tag(), $request->etag_if_match) );
  53 }
  54
  55 $collection_id = $container->GetProperty('collection_id');
  56
  57 $original_etag = md5($request->raw_post);
  58
  59 require_once('vcard.php');
  60 $vcard = new vCard( $request->raw_post );
  61
  62 $qry = new AwlQuery();
  63 $qry->Begin();
  64
  65 $uid = $vcard->GetPValue('UID');
  66 if ( empty($uid) ) {
  67   $uid = uuid();
  68   $vcard->AddProperty('UID',$uid);
  69 }
  70
  71 $last_modified = $vcard->GetPValue('REV');
  72 if ( empty($last_modified) ) {
  73   $last_modified = gmdate( 'Ymd\THis\Z' );
  74   $vcard->AddProperty('REV',$last_modified);
  75 }
  76 elseif ( stripos($last_modified, 'TZ') ) {
  77   // At least one of my examples has this crap.
  78   $last_modified = str_replace('TZ','T000000Z',$last_modified);
  79   $vcard->ClearProperties('REV');
  80   $vcard->AddProperty('REV',$last_modified);
  81 }
  82 elseif( preg_match('{^(\d{8})(\d{6})Z?}', $last_modified, $matches) ) {
  83   $last_modified = $matches[1] . 'T' . $matches[2] . 'Z';
  84   $vcard->ClearProperties('REV');
  85   $vcard->AddProperty('REV',$last_modified);
  86 }
  87
  88 $rendered_card = $vcard->Render();
  89 $etag = md5($rendered_card);
  90 $params = array(
  91     ':user_no' => $dest->GetProperty('user_no'),
  92     ':dav_name' => $dest->bound_from(),
  93     ':etag' => $etag,
  94     ':dav_data' => $rendered_card,
  95     ':session_user' => $session->user_no,
  96     ':modified' => $last_modified
  97 );
  98 if ( $dest->Exists() ) {
  99   $sql = 'UPDATE caldav_data SET caldav_data=:dav_data, dav_etag=:etag, logged_user=:session_user,
 100           modified=:modified, user_no=:user_no, caldav_type=\'VCARD\' WHERE dav_name=:dav_name';
 101   $response_code = 200;
 102   $qry->QDo( $sql, $params );
 103
 104   $qry->QDo("SELECT dav_id FROM caldav_data WHERE dav_name = :dav_name ", array(':dav_name' => $params[':dav_name']) );
 105 }
 106 else {
 107   $sql = 'INSERT INTO caldav_data ( user_no, dav_name, dav_etag, caldav_data, caldav_type, logged_user, created, modified, collection_id )
 108           VALUES( :user_no, :dav_name, :etag, :dav_data, \'VCARD\', :session_user, current_timestamp, :modified, :collection_id )';
 109   $params[':collection_id'] = $collection_id;
 110   $response_code = 201;
 111   $qry->QDo( $sql, $params );
 112
 113   $qry->QDo("SELECT currval('dav_id_seq') AS dav_id" );
 114 }
 115 $row = $qry->Fetch();
 116
 117 $vcard->Write( $row->dav_id, $dest->Exists() );
 118
 119 $qry->QDo("SELECT write_sync_change( $collection_id, $response_code, :dav_name)", array(':dav_name' => $dest->bound_from() ) );
 120
 121 if ( !$qry->Commit() ) {
 122    $qry->Rollback();
 123    $request->DoResponse( 500, "A database error occurred" );
 124 }
 125
 126 // Uncache anything to do with the collection
 127 $cache = getCacheInstance();
 128 $cache->delete( 'collection-'.$container->dav_name(), null );
 129
 130 if ( $etag == $original_etag ) header('ETag: "'. $etag . '"' ); // Only send the ETag if we didn't change what they gave us.
 131 if ( $response_code == 200 ) $response_code = 204;
 132 $request->DoResponse( $response_code );