functions/attachment_common.php

   1 <?php
   2 /**
   3  ** attachment_common.php
   4  **
   5  ** This file provides the handling of often-used attachment types.
   6  **
   7  ** $Id$
   8  **/
   9
  10   global $FileExtensionToMimeType, $attachment_common_types;
  11   $FileExtensionToMimeType = array('bmp'  => 'image/x-bitmap',
  12                                    'gif'  => 'image/gif',
  13                                    'htm'  => 'text/html',
  14                                    'html' => 'text/html',
  15                                    'jpg'  => 'image/jpeg',
  16                                    'jpeg' => 'image/jpeg',
  17                                    'php'  => 'text/plain',
  18                                    'png'  => 'image/png',
  19                                    'rtf'  => 'text/richtext',
  20                                    'txt'  => 'text/plain',
  21                                    'vcf'  => 'text/x-vcard');
  22
  23   // Register browser-supported image types
  24   if (isset($attachment_common_types)) {
  25      // Don't run this before being logged in. That may happen
  26      // when plugins include mime.php
  27      foreach ($attachment_common_types as $val => $v) {
  28         if ($val == 'image/gif')
  29            register_attachment_common('image/gif',       'link_image');
  30         elseif (($val == 'image/jpeg' || $val == 'image/pjpeg') and
  31                 (!isset($jpeg_done))) {
  32            $jpeg_done = 1;
  33            register_attachment_common('image/jpeg',      'link_image');
  34            register_attachment_common('image/pjpeg',     'link_image');
  35         }
  36         elseif ($val == 'image/png')
  37            register_attachment_common('image/png',       'link_image');
  38         elseif ($val == 'image/x-xbitmap')
  39            register_attachment_common('image/x-xbitmap', 'link_image');
  40      }
  41      unset($jpeg_done);
  42   }
  43
  44   // Register text-type attachments
  45   register_attachment_common('message/rfc822', 'link_text');
  46   register_attachment_common('text/plain',     'link_text');
  47   register_attachment_common('text/richtext',  'link_text');
  48
  49   // Register HTML
  50   register_attachment_common('text/html',      'link_html');
  51
  52   // Register vcards
  53   register_attachment_common('text/x-vcard',   'link_vcard');
  54
  55   // Register "unknown" attachments
  56   register_attachment_common('application/octet-stream', 'octet_stream');
  57
  58
  59 /* Function which optimizes readability of the above code */
  60
  61 function register_attachment_common($type, $func) {
  62   global $squirrelmail_plugin_hooks;
  63   $squirrelmail_plugin_hooks['attachment ' . $type]['attachment_common'] =
  64                       'attachment_common_' . $func;
  65 }
  66
  67
  68 function attachment_common_link_text(&$Args)
  69 {
  70   // If there is a text attachment, we would like to create a 'view' button
  71   // that links to the text attachment viewer.
  72   //
  73   // $Args[1] = the array of actions
  74   //
  75   // Use our plugin name for adding an action
  76   // $Args[1]['attachment_common'] = array for href and text
  77   //
  78   // $Args[1]['attachment_common']['text'] = What is displayed
  79   // $Args[1]['attachment_common']['href'] = Where it links to
  80   //
  81   // This sets the 'href' of this plugin for a new link.
  82   $Args[1]['attachment_common']['href'] = '../src/download.php?startMessage=' .
  83      $Args[2] . '&passed_id=' . $Args[3] . '&mailbox=' . $Args[4] .
  84      '&passed_ent_id=' . $Args[5] . '&override_type0=text&override_type1=plain';
  85
  86   // If we got here from a search, we should preserve these variables
  87   if ($Args[8] && $Args[9])
  88      $Args[1]['attachment_common']['href'] .= '&where=' .
  89      urlencode($Args[8]) . '&what=' . urlencode($Args[9]);
  90
  91   // The link that we created needs a name.  "view" will be displayed for
  92   // all text attachments handled by this plugin.
  93   $Args[1]['attachment_common']['text'] = _("view");
  94
  95   // Each attachment has a filename on the left, which is a link.
  96   // Where that link points to can be changed.  Just in case the link above
  97   // for viewing text attachments is not the same as the default link for
  98   // this file, we'll change it.
  99   //
 100   // This is a lot better in the image links, since the defaultLink will just
 101   // download the image, but the one that we set it to will format the page
 102   // to have an image tag in the center (looking a lot like this text viewer)
 103   $Args[6] = $Args[1]['attachment_common']['href'];
 104 }
 105
 106
 107 function attachment_common_link_html(&$Args)
 108 {
 109   $Args[1]['attachment_common']['href'] = '../src/download.php?startMessage=' .
 110      $Args[2] . '&passed_id=' . $Args[3] . '&mailbox=' . $Args[4] .
 111     '&passed_ent_id=' . $Args[5] . '&override_type0=text&override_type1=html';
 112
 113   if ($Args[8] && $Args[9])
 114      $Args[1]['attachment_common']['href'] .= '&where=' .
 115      urlencode($Args[8]) . '&what=' . urlencode($Args[9]);
 116
 117   $Args[1]['attachment_common']['text'] = _("view");
 118
 119   $Args[6] = $Args[1]['attachment_common']['href'];
 120 }
 121
 122
 123 function attachment_common_link_image(&$Args)
 124 {
 125   global $attachment_common_show_images, $attachment_common_show_images_list;
 126
 127   $info['passed_id'] = $Args[3];
 128   $info['mailbox'] = $Args[4];
 129   $info['ent_id'] = $Args[5];
 130
 131   $attachment_common_show_images_list[] = $info;
 132
 133   $Args[1]['attachment_common']['href'] = '../src/image.php?startMessage=' .
 134      $Args[2] . '&passed_id=' . $Args[3] . '&mailbox=' . $Args[4] .
 135      '&passed_ent_id=' . $Args[5];
 136
 137   if ($Args[8] && $Args[9])
 138      $Args[1]['attachment_common']['href'] .= '&where=' .
 139      urlencode($Args[8]) . '&what=' . urlencode($Args[9]);
 140
 141   $Args[1]['attachment_common']['text'] = _("view");
 142
 143   $Args[6] = $Args[1]['attachment_common']['href'];
 144 }
 145
 146
 147 function attachment_common_link_vcard(&$Args)
 148 {
 149   $Args[1]['attachment_common']['href'] = '../src/vcard.php?startMessage=' .
 150      $Args[2] . '&passed_id=' . $Args[3] . '&mailbox=' . $Args[4] .
 151      '&passed_ent_id=' . $Args[5];
 152
 153   if (isset($where) && isset($what))
 154      $Args[1]['attachment_common']['href'] .= '&where=' .
 155      urlencode($Args[8]) . '&what=' . urlencode($Args[9]);
 156
 157   $Args[1]['attachment_common']['text'] = _("Business Card");
 158
 159   $Args[6] = $Args[1]['attachment_common']['href'];
 160 }
 161
 162
 163 function attachment_common_octet_stream(&$Args)
 164 {
 165    global $FileExtensionToMimeType;
 166
 167    do_hook('attachment_common-load_mime_types');
 168
 169    ereg('\\.([^\\.]+)$', $Args[7], $Regs);
 170
 171    $Ext = strtolower($Regs[1]);
 172
 173    if ($Ext == '' || ! isset($FileExtensionToMimeType[$Ext]))
 174        return;
 175
 176    $Ret = do_hook('attachment ' . $FileExtensionToMimeType[$Ext],
 177        $Args[1], $Args[2], $Args[3], $Args[4], $Args[5], $Args[6],
 178        $Args[7], $Args[8], $Args[9]);
 179
 180    foreach ($Ret as $a => $b) {
 181        $Args[$a] = $b;
 182    }
 183 }
 184
 185 ?>