/ 
Solstice-1440
/ Solstice::ContentTypeService
Security Advisories (1)
CVE-2026-5085 (2026-04-13)

Solstice::Session versions through 1440 for Perl generates session ids insecurely. The _generateSessionID method returns an MD5 digest seeded by the epoch time, a random hash reference, a call to the built-in rand() function and the process id. The same method is used in the _generateID method in Solstice::Subsession, which is part of the same distribution. The epoch time may be guessed, if it is not leaked in the HTTP Date header. Stringified hash refences will contain predictable content. The built-in rand() function is seeded by 16-bits and is unsuitable for security purposes. The process id comes from a small set of numbers. Predictable session ids could allow an attacker to gain access to systems.

NAME

Solstice::ContentTypeService - Provides mappings between content-types and icons, MIMEExtensions, etc.

SYNOPSIS

   use Solstice::ContentTypeService;
   
   my $filename = 'filename.txt';

   my $service = Solstice::ContentTypeService->new();

   my $content_type = $service->getContentTypeByFilename($filename);
   # returns 'text/plain';

   my $description = $service->getContentDescriptionByContentType($content_type);
   # returns 'Plain text file'

   my $extension = $service->getExtensionByContentType($content_type);
   # returns 'txt'

DESCRIPTION

Solstice::ContentTypeService is a service for identifying and
depicting a file's content-type in various ways.

How is this service useful? Let's say that you have identified a 
file's content type as 'text/plain'. A view might wish to display an 
appropriate icon for this content type (see Solstice::IconService), 
as well as a 'human-readable' description, both of which can be 
returned by this service.

Superclass

Solstice::Service::Memory

Export

No symbols exported.

Methods

new()

Creates a new Solstice::ContentTypeService object.

getContentTypeByFilehandle($handle)

Returns a content-type for the passed filehandle, based on magic numbers.

getContentTypeByFilename($str)

Returns a content-type for the passed filename, or undef if a file extension cannot be discerned.

getContentDescriptionByContentType($str)
getExtensionByContentType($str)
getIconByContentType($str)
getSynonymsForContentType($str)

Returns an array ref of content-type synonyms for the passed type. The list includes the passed type.

getDownloadContentType($str)

Returns a content-type suitable for placing into a download header. If the passed $type is a synonym, its parent type is returned.

isKnownType($str)
isVagueType($str)

Returns TRUE if the passed $type is a vague content type as returned by File::MMagic::checktype_contents().

isTextType($str)

Returns TRUE if the passed $type is a web-viewable text type or synonym, FALSE otherwise.

includesCharset($str)

checks if the type passed includes a charset declaration

isImageType($str)

Returns TRUE if the passed $type is a web-viewable image type or synonym, FALSE otherwise.

Private Methods

_initialize()
_getDataForType($str)
_validateXML($doc)
_readXML($doc)
_parseXMLFile($path)

Private Functions

_sanitize($str)
_getClassName()

Return the class name. Overridden to avoid a ref() in the superclass.

Modules Used

Solstice::Service::Memory.

AUTHOR

Catalyst Group, <catalyst@u.washington.edu>

VERSION

$Revision: 2257 $

COPYRIGHT

Copyright 1998-2007 Office of Learning Technologies, University of Washington

Licensed under the Educational Community License, Version 1.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at: http://www.opensource.org/licenses/ecl1.php

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.