diff options
Diffstat (limited to 'include/attach.php')
| -rw-r--r-- | include/attach.php | 283 |
1 files changed, 281 insertions, 2 deletions
diff --git a/include/attach.php b/include/attach.php index 61514bb51..3775d840c 100644 --- a/include/attach.php +++ b/include/attach.php @@ -104,7 +104,7 @@ function attach_count_files($channel_id, $observer, $hash = '', $filename = '', if($filetype) $sql_extra .= protect_sprintf(" and filetype like '@" . dbesc($filetype) . "@' "); - $r = q("select id from attach where channel_id = %d $sql_extra", + $r = q("select id from attach where uid = %d $sql_extra", intval($channel_id) ); @@ -140,7 +140,7 @@ function attach_list_files($channel_id, $observer, $hash = '', $filename = '', $ // Retrieve all columns except 'data' - $r = q("select id, aid, uid, hash, filename, filetype, filesize, created, edited, allow_cid, allow_gid, deny_cid, deny_gid from attach where channel_id = %d $sql_extra $orderby $limit", + $r = q("select id, aid, uid, hash, filename, filetype, filesize, revision, created, edited, allow_cid, allow_gid, deny_cid, deny_gid from attach where uid = %d $sql_extra $orderby $limit", intval($channel_id) ); @@ -149,3 +149,282 @@ function attach_list_files($channel_id, $observer, $hash = '', $filename = '', $ return $ret; } + + +function attach_by_hash($hash,$rev = 0) { + + $ret = array('success' => false); + + // Check for existence, which will also provide us the owner uid + + $sql_extra = ''; + if($rev == (-1)) + $sql_extra = " order by revision desc "; + elseif($rev) + $sql_extra = " and revision = " . intval($rev) . " "; + + + $r = q("SELECT uid FROM attach WHERE hash = '%s' $sql_extra LIMIT 1", + dbesc($hash) + ); + if(! $r) { + $ret['message'] = t('Item was not found.'); + return $ret; + } + + if(! perm_is_allowed($r[0]['uid'],get_observer_hash(),'view_storage')) { + $ret['message'] = t('Permission denied.'); + return $ret; + } + + $sql_extra = permissions_sql($r[0]['uid']); + + // Now we'll see if we can access the attachment + + + $r = q("SELECT * FROM attach WHERE hash = '%s' and uid = %d $sql_extra LIMIT 1", + dbesc($hash), + intval($r[0]['uid']) + ); + + if(! $r) { + $ret['message'] = t('Permission denied.'); + return $ret; + } + + $ret['success'] = true; + $ret['data'] = $r[0]; + return $ret; + +} + + + +function attach_by_hash_nodata($hash,$rev = 0) { + + $ret = array('success' => false); + + // Check for existence, which will also provide us the owner uid + + $sql_extra = ''; + if($rev == (-1)) + $sql_extra = " order by revision desc "; + elseif($rev) + $sql_extra = " and revision = " . intval($rev) . " "; + + $r = q("SELECT uid FROM attach WHERE hash = '%s' $sql_extra LIMIT 1", + dbesc($hash) + ); + if(! $r) { + $ret['message'] = t('Item was not found.'); + return $ret; + } + + if(! perm_is_allowed($r[0]['uid'],get_observer_hash(),'view_storage')) { + $ret['message'] = t('Permission denied.'); + return $ret; + } + + $sql_extra = permissions_sql($r[0]['uid']); + + // Now we'll see if we can access the attachment + + $r = q("select id, aid, uid, hash, filename, filetype, filesize, revision, created, edited, allow_cid, allow_gid, deny_cid, deny_gid from attach where uid = %d and hash = '%s' $sql_extra limit 1", + intval($r[0]['uid']), + dbesc($hash) + ); + + if(! $r) { + $ret['message'] = t('Permission denied.'); + return $ret; + } + + $ret['success'] = true; + $ret['data'] = $r[0]; + return $ret; + +} + + + + +function attach_store($channel,$observer_hash,$options = '',$arr = null) { + + + $ret = array('success' => false); + $channel_id = $channel['channel_id']; + $sql_options = ''; + + if(! perm_is_allowed($channel_id,$observer_hash(),'write_storage')) { + $ret['message'] = t('Permission denied.'); + return $ret; + } + + // The 'update' option sets db values without uploading a new attachment + // 'replace' replaces the existing uploaded data + // 'revision' creates a new revision with new upload data + // Default is to upload a new file + + // revise or update must provide $arr['hash'] of the thing to revise/update + + if($options !== 'update') { + if(! x($_FILES,'userfile')) { + $ret['message'] = t('No source file.'); + return $ret; + } + + $src = $_FILES['userfile']['tmp_name']; + $filename = basename($_FILES['userfile']['name']); + $filesize = intval($_FILES['userfile']['size']); + } + + $existing_size = 0; + + if($options === 'replace') { + $x = q("select id, hash, filesize from attach where id = %d and uid = %d limit 1", + intval($replace), + intval($channel_id) + ); + if(! $x) { + $ret['message'] = t('Cannot locate file to replace'); + return $ret; + } + $existing_id = $x[0]['id']; + $existing_size = intval($x[0]['filesize']); + $hash = $x[0]['hash']; + } + + if($options === 'revise' || $options === 'update') { + $sql_options = " order by revision desc "; + if($options === 'update' && $arr && array_key_exists('revision',$arr)) + $sql_options = " and revision = " . intval($arr['revision']) . " "; + + $x =q("select id, aid, uid, hash, revision, created, edited, allow_cid, allow_gid, deny_cid, deny_gid from attach where hash = '%s' and uid = %d $sql_options limit 1", + dbesc($arr['hash']), + intval($channel_id) + ); + if(! $x) { + $ret['message'] = t('Cannot locate file to revise/update'); + return $ret; + } + $hash = $x[0]['hash']; + } + + // Check storage limits + if($options !== 'update') { + $maxfilesize = get_config('system','maxfilesize'); + + if(($maxfilesize) && ($filesize > $maxfilesize)) { + $ret['message'] = sprintf( t('File exceeds size limit of %d'), $maxfilesize); + @unlink($src); + return $ret; + } + + $limit = service_class_fetch($channel_id,'attach_upload_limit'); + if($limit !== false) { + $r = q("select sum(filesize) as total from attach where uid = %d ", + intval($channel_id) + ); + if(($r) && (($r[0]['total'] + $filesize) > ($limit - $existing_size))) { + $ret['message'] = upgrade_message(true); + @unlink($src); + return $ret; + } + } + $mimetype = z_mime_content_type($filename); + } + + if(! isset($hash)) + $hash = random_string(); + $created = datetime_convert(); + + if($options === 'replace') { + $r = q("update attach set filename = '%s', filetype = '%s', filesize = %d, data = '%s', edited = '%s' where id = %d and uid = %d limit 1", + dbesc($filename), + dbesc($mimetype), + intval($filesize), + dbesc(@file_get_contents($src)), + dbesc($created), + intval($existing_id), + intval($channel_id) + ); + } + elseif($options === 'revise') { + $r = q("insert into attach ( aid, uid, hash, filename, filetype, filesize, revision, data, created, edited, allow_cid, allow_gid, deny_cid, deny_gid ) + VALUES ( %d, %d, '%s', '%s', '%s', %d, %d, '%s', '%s', '%s', '%s', '%s', '%s', '%s' ) ", + intval($x[0]['aid']), + intval($channel_id), + dbesc($x[0]['hash']), + dbesc($filename), + dbesc($mimetype), + intval($filesize), + intval($x[0]['revision'] + 1), + dbesc(@file_get_contents($src)), + dbesc($created), + dbesc($created), + dbesc($x[0]['allow_cid']), + dbesc($x[0]['allow_gid']), + dbesc($x[0]['deny_cid']), + dbesc($x[0]['deny_gid']) + ); + } + + elseif($options === 'update') { + $r = q("update attach set filename = '%s', filetype = '%s', edited = '%s', + allow_cid = '%s', allow_gid = '%s', deny_cid = '%s', deny_gid = '%s' where id = %d and uid = %d limit 1", + dbesc((array_key_exists('filename',$arr)) ? $arr['filename'] : $x[0]['filename']), + dbesc((array_key_exists('filetype',$arr)) ? $arr['filetype'] : $x[0]['filetype']), + dbesc($created), + dbesc((array_key_exists('allow_cid',$arr)) ? $arr['allow_cid'] : $x[0]['allow_cid']), + dbesc((array_key_exists('allow_gid',$arr)) ? $arr['allow_gid'] : $x[0]['allow_gid']), + dbesc((array_key_exists('deny_cid',$arr)) ? $arr['deny_cid'] : $x[0]['deny_cid']), + dbesc((array_key_exists('deny_gid',$arr)) ? $arr['deny_gid'] : $x[0]['deny_gid']), + intval($x[0]['id']), + intval($x[0]['uid']) + ); + } + + else { + $r = q("INSERT INTO attach ( aid, uid, hash, filename, filetype, filesize, revision, data, created, edited, allow_cid, allow_gid,deny_cid, deny_gid ) + VALUES ( %d, %d, '%s', '%s', '%s', %d, %d, '%s', '%s', '%s', '%s', '%s', '%s', '%s' ) ", + intval($channel['channel_account_id']), + intval($channel_id), + dbesc($hash), + dbesc($filename), + dbesc($mimetype), + intval($filesize), + intval(0), + dbesc(@file_get_contents($src)), + dbesc($created), + dbesc($created), + dbesc((array_key_exists('allow_cid',$arr)) ? $arr['allow_cid'] : '<' . $channel['channel_hash'] . '>'), + dbesc((array_key_exists('allow_gid',$arr)) ? $arr['allow_gid'] : ''), + dbesc((array_key_exists('deny_cid',$arr)) ? $arr['deny_cid'] : ''), + dbesc((array_key_exists('deny_gid',$arr)) ? $arr['deny_gid'] : '') + ); + } + + if($options !== 'update') + @unlink($src); + + if(! $r) { + $ret['message'] = t('File upload failed. Possible system limit or action terminated.'); + return $ret; + } + + // Caution: This re-uses $sql_options set further above + + $r = q("select id, aid, uid, hash, filename, filetype, filesize, revision, created, edited, allow_cid, allow_gid, deny_cid, deny_gid from attach where uid = %d and hash = '%s' $sql_options limit 1", + intval($channel_id), + dbesc($hash) + ); + + if(! $r) { + $ret['message'] = t('Stored file could not be verified. Upload failed.'); + return $ret; + } + + $ret['success'] = true; + $ret['data'] = $r[0]; + return $ret; +}
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