Source for file attachment_common.php

Documentation is available at attachment_common.php

  1. <?php
  2.  
  3. /**
  4.  * attachment_common.php
  5.  *
  6.  * This file provides the handling of often-used attachment types.
  7.  *
  8.  * @copyright &copy; 1999-2006 The SquirrelMail Project Team
  9.  * @license http://opensource.org/licenses/gpl-license.php GNU Public License
  10.  * @version $Id: attachment_common.php,v 1.45 2006/10/06 19:59:55 stevetruckstuff Exp $
  11.  * @package squirrelmail
  12.  * @todo document attachment $type hook arguments
  13.  */
  14.  
  15. $attachment_common_show_images_list array();
  16.  
  17. /**
  18.  * Mapping of file extensions to mime types
  19.  *
  20.  * Used for application/octet-stream mime type detection.
  21.  * Supported extensions: bmp, gif, htm, html, jpg, jpeg, php,
  22.  * png, rtf, txt, patch (since 1.4.2), vcf
  23.  * @global array $FileExtensionToMimeType 
  24.  */
  25. $FileExtensionToMimeType array('bmp'  => 'image/x-bitmap',
  26.                                  'gif'  => 'image/gif',
  27.                                  'htm'  => 'text/html',
  28.                                  'html' => 'text/html',
  29.                                  'jpe'  => 'image/jpeg',
  30.                                  'jpg'  => 'image/jpeg',
  31.                                  'jpeg' => 'image/jpeg',
  32.                                  'php'  => 'text/plain',
  33.                                  'png'  => 'image/png',
  34.                                  'rtf'  => 'text/richtext',
  35.                                  'txt'  => 'text/plain',
  36.                                  'patch'=> 'text/plain',
  37.                                  'vcf'  => 'text/x-vcard');
  38.  
  39. /* Register browser-supported image types */
  40. sqgetGlobalVar('attachment_common_types'$attachment_common_types);
  41. // FIXME: do we use $attachment_common_types that is not extracted by sqgetGlobalVar() ?
  42. if (isset($attachment_common_types)) {
  43.     // var is used to detect activation of jpeg image types
  44.         unset($jpeg_done);
  45.     /* Don't run this before being logged in. That may happen
  46.        when plugins include mime.php */
  47.     foreach ($attachment_common_types as $val => $v{
  48.         if ($val == 'image/gif')
  49.             register_attachment_common('image/gif',       'link_image');
  50.         elseif (($val == 'image/jpeg' || $val == 'image/pjpeg' || $val == 'image/jpg'and
  51.                 (!isset($jpeg_done))) {
  52.             $jpeg_done 1;
  53.             register_attachment_common('image/jpg',       'link_image');
  54.             register_attachment_common('image/jpeg',      'link_image');
  55.             register_attachment_common('image/pjpeg',     'link_image');
  56.         }
  57.         elseif ($val == 'image/png')
  58.             register_attachment_common('image/png',       'link_image');
  59.         elseif ($val == 'image/x-xbitmap')
  60.             register_attachment_common('image/x-xbitmap''link_image');
  61.         elseif ($val == '*/*' || $val == 'image/*'{
  62.             /**
  63.              * browser (Firefox) declared that anything is acceptable.
  64.              * Lets register some common image types.
  65.              */
  66.             if (isset($jpeg_done)) {
  67.                 $jpeg_done 1;
  68.                 register_attachment_common('image/jpg',   'link_image');
  69.                 register_attachment_common('image/jpeg',  'link_image');
  70.                 register_attachment_common('image/pjpeg''link_image');
  71.             }
  72.             register_attachment_common('image/gif',       'link_image');
  73.             register_attachment_common('image/png',       'link_image');
  74.             register_attachment_common('image/x-xbitmap''link_image');
  75.             // register_attachment_common('image/x-ico',     'link_image');
  76.             // register_attachment_common('image/x-icon',    'link_image');
  77.             // register_attachment_common('image/bmp',       'link_image');
  78.             // register_attachment_common('image/x-ms-bmp',  'link_image');
  79.                 }
  80.     }
  81.     unset($jpeg_done);
  82. }
  83.  
  84. /* Register text-type attachments */
  85. register_attachment_common('message/rfc822''link_message');
  86. register_attachment_common('text/plain',     'link_text');
  87. register_attachment_common('text/richtext',  'link_text');
  88.  
  89. /* Register HTML */
  90. register_attachment_common('text/html',      'link_html');
  91.  
  92. /* Register vcards */
  93. register_attachment_common('text/x-vcard',   'link_vcard');
  94. register_attachment_common('text/directory''link_vcard');
  95.  
  96. /* Register rules for general types.
  97.  * These will be used if there isn't a more specific rule available. */
  98. register_attachment_common('text/*',  'link_text');
  99. register_attachment_common('message/*',  'link_text');
  100.  
  101. /* Register "unknown" attachments */
  102. register_attachment_common('application/octet-stream''octet_stream');
  103.  
  104.  
  105. /**
  106.  * Function which optimizes readability of the above code
  107.  * Registers 'attachment $type' hooks.
  108.  * @param string $type attachment type
  109.  * @param string $func suffix of attachment_common_* function, which handles $type attachments.
  110.  * @since 1.2.0
  111.  */
  112. function register_attachment_common($type$func{
  113.     global $squirrelmail_plugin_hooks;
  114.     $squirrelmail_plugin_hooks['attachment ' $type]['attachment_common'=
  115.                       'attachment_common_' $func;
  116. }
  117.  
  118. /**
  119.  * Adds href and text keys to attachment_common array for text attachments
  120.  * @param array $Args attachment $type hook arguments
  121.  * @since 1.2.0
  122.  */
  123. function attachment_common_link_text(&$Args{
  124.     global $base_uri;
  125.     /* If there is a text attachment, we would like to create a "View" button
  126.        that links to the text attachment viewer.
  127.  
  128.        $Args[1] = the array of actions
  129.  
  130.        Use the name of this file for adding an action
  131.        $Args[1]['attachment_common'] = Array for href and text
  132.  
  133.        $Args[1]['attachment_common']['text'] = What is displayed
  134.        $Args[1]['attachment_common']['href'] = Where it links to */
  135.     sqgetGlobalVar('QUERY_STRING'$QUERY_STRINGSQ_SERVER);
  136.  
  137.     // if htmlspecialchars() breaks something - find other way to encode & in url.
  138.     $Args[1]['attachment_common']['href'$base_uri  'src/view_text.php?'htmlspecialchars($QUERY_STRING);
  139.     $Args[1]['attachment_common']['href'=
  140.           set_url_var($Args[1]['attachment_common']['href'],
  141.           'ent_id',$Args[5]);
  142.  
  143.     /* The link that we created needs a name. */
  144.     $Args[1]['attachment_common']['text'_("View");
  145.  
  146.     /* Each attachment has a filename on the left, which is a link.
  147.        Where that link points to can be changed.  Just in case the link above
  148.        for viewing text attachments is not the same as the default link for
  149.        this file, we'll change it.
  150.  
  151.        This is a lot better in the image links, since the defaultLink will just
  152.        download the image, but the one that we set it to will format the page
  153.        to have an image tag in the center (looking a lot like this text viewer) */
  154.     $Args[6$Args[1]['attachment_common']['href'];
  155. }
  156.  
  157. /**
  158.  * Adds href and text keys to attachment_common array for rfc822 attachments
  159.  * @param array $Args attachment $type hook arguments
  160.  * @since 1.2.6
  161.  */
  162. function attachment_common_link_message(&$Args{
  163.     global $base_uri;
  164.     $Args[1]['attachment_common']['href'$base_uri  'src/read_body.php?startMessage=' .
  165.         $Args[2'&amp;passed_id=' $Args[3'&amp;mailbox=' $Args[4.
  166.         '&amp;passed_ent_id=' $Args[5'&amp;override_type0=message&amp;override_type1=rfc822';
  167.  
  168.     $Args[1]['attachment_common']['text'_("View");
  169.  
  170.     $Args[6$Args[1]['attachment_common']['href'];
  171. }
  172.  
  173. /**
  174.  * Adds href and text keys to attachment_common array for html attachments
  175.  * @param array $Args attachment $type hook arguments
  176.  * @since 1.2.0
  177.  */
  178. function attachment_common_link_html(&$Args{
  179.     global $base_uri;
  180.     sqgetGlobalVar('QUERY_STRING'$QUERY_STRINGSQ_SERVER);
  181.  
  182.     $Args[1]['attachment_common']['href'$base_uri  'src/view_text.php?'htmlspecialchars($QUERY_STRING).
  183.         /* why use the overridetype? can this be removed */
  184.         /* override_type might be needed only when we want view other type of messages as html */
  185.        '&amp;override_type0=text&amp;override_type1=html';
  186.     $Args[1]['attachment_common']['href'=
  187.           set_url_var($Args[1]['attachment_common']['href'],
  188.           'ent_id',$Args[5]);
  189.  
  190.     $Args[1]['attachment_common']['text'_("View");
  191.  
  192.     $Args[6$Args[1]['attachment_common']['href'];
  193. }
  194.  
  195. /**
  196.  * Adds href and text keys to attachment_common array for image attachments
  197.  * @param array $Args attachment $type hook arguments
  198.  * @since 1.2.0
  199.  */
  200. function attachment_common_link_image(&$Args{
  201.     global $attachment_common_show_images_list$base_uri ;
  202.  
  203.     sqgetGlobalVar('QUERY_STRING'$QUERY_STRINGSQ_SERVER);
  204.  
  205.     $info['passed_id'$Args[3];
  206.     $info['mailbox'$Args[4];
  207.     $info['ent_id'$Args[5];
  208.     $info['name'$Args[7];
  209.     $info['download_href'= isset($Args[1]['download link']$Args[1]['download link']['href''';
  210.     
  211.     $attachment_common_show_images_list[$info;
  212.  
  213.     $Args[1]['attachment_common']['href'$base_uri  'src/image.php?'htmlspecialchars($QUERY_STRING);
  214.     $Args[1]['attachment_common']['href'=
  215.           set_url_var($Args[1]['attachment_common']['href'],
  216.           'ent_id',$Args[5]);
  217.  
  218.     $Args[1]['attachment_common']['text'_("View");
  219.  
  220.     $Args[6$Args[1]['attachment_common']['href'];
  221. }
  222.  
  223. /**
  224.  * Adds href and text keys to attachment_common array for vcard attachments
  225.  * @param array $Args attachment $type hook arguments
  226.  * @since 1.2.0
  227.  */
  228. function attachment_common_link_vcard(&$Args{
  229.     global $base_uri;
  230.     sqgetGlobalVar('QUERY_STRING'$QUERY_STRINGSQ_SERVER);
  231.  
  232.     $Args[1]['attachment_common']['href'$base_uri  'src/vcard.php?'htmlspecialchars($QUERY_STRING);
  233.     $Args[1]['attachment_common']['href'=
  234.           set_url_var($Args[1]['attachment_common']['href'],
  235.           'ent_id',$Args[5]);
  236.  
  237.     $Args[1]['attachment_common']['text'_("View Business Card");
  238.  
  239.     $Args[6$Args[1]['attachment_common']['href'];
  240. }
  241.  
  242. /**
  243.  * Processes octet-stream attachments.
  244.  * Calls attachment_common-load_mime_types and attachment $type hooks.
  245.  * @param array $Args attachment $type hook arguments
  246.  * @since 1.2.0
  247.  */
  248. function attachment_common_octet_stream(&$Args{
  249.     global $FileExtensionToMimeType;
  250.  
  251.     do_hook('attachment_common-load_mime_types');
  252.  
  253.     ereg('\\.([^\\.]+)$'$Args[7]$Regs);
  254.  
  255.     $Ext strtolower($Regs[1]);
  256.  
  257.     if ($Ext == '' || isset($FileExtensionToMimeType[$Ext]))
  258.         return;
  259.  
  260.     $Ret do_hook('attachment ' $FileExtensionToMimeType[$Ext],
  261.         $Args[1]$Args[2]$Args[3]$Args[4]$Args[5]$Args[6],
  262.         $Args[7]$Args[8]$Args[9]);
  263.  
  264.     foreach ($Ret as $a => $b{
  265.         $Args[$a$b;
  266.     }
  267. }

Documentation generated on Sat, 07 Oct 2006 16:08:55 +0300 by phpDocumentor 1.3.0RC6