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1 | <?php |
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2 | |
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3 | /** |
4 | * download.php |
5 | * |
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6 | * Handles attachment downloads to the users computer. |
7 | * Also allows displaying of attachments when possible. |
8 | * |
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9 | * @copyright © 1999-2007 The SquirrelMail Project Team |
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10 | * @license http://opensource.org/licenses/gpl-license.php GNU Public License |
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11 | * @version $Id$ |
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12 | * @package squirrelmail |
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13 | */ |
14 | |
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15 | /** |
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16 | * Include the SquirrelMail initialization file. |
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17 | */ |
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18 | require('../include/init.php'); |
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19 | |
20 | /* SquirrelMail required files. */ |
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21 | require(SM_PATH . 'functions/imap_general.php'); |
22 | require(SM_PATH . 'functions/mailbox_display.php'); |
23 | require(SM_PATH . 'functions/mime.php'); |
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24 | |
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25 | /** |
26 | * If a message is viewed from the search page, $aMailbox[$passed_id]['MESSAGE_OBJECT'] |
27 | * is not initialized, which makes this page error out on line 65 with an |
28 | * undefined function. We need to include some additional files in case the |
29 | * object has not been initialized. |
30 | * |
31 | * TODO: Determine why the object in question is not initialized when coming from |
32 | * a search page and correct. Once that is done, we can remove these |
33 | * includes. |
34 | */ |
35 | require(SM_PATH . 'functions/imap_messages.php'); |
36 | require(SM_PATH . 'functions/date.php'); |
37 | |
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38 | header('Pragma: '); |
39 | header('Cache-Control: cache'); |
40 | |
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41 | /* globals */ |
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42 | sqgetGlobalVar('mailbox_cache',$mailbox_cache,SQ_SESSION); |
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43 | sqgetGlobalVar('messages', $messages, SQ_SESSION); |
44 | sqgetGlobalVar('mailbox', $mailbox, SQ_GET); |
45 | sqgetGlobalVar('ent_id', $ent_id, SQ_GET); |
46 | sqgetGlobalVar('absolute_dl',$absolute_dl, SQ_GET); |
47 | if ( sqgetGlobalVar('passed_id', $temp, SQ_GET) ) { |
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48 | $passed_id = (int) $temp; |
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49 | } |
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50 | if (!sqgetGlobalVar('account', $account, SQ_GET) ) { |
51 | $account = 0; |
52 | } |
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53 | |
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54 | global $default_charset; |
55 | set_my_charset(); |
56 | |
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57 | /* end globals */ |
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58 | |
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59 | $imapConnection = sqimap_login($username, false, $imapServerAddress, $imapPort, 0); |
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60 | $aMailbox = sqm_api_mailbox_select($imapConnection, $account, $mailbox,array(),array()); |
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61 | |
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62 | if (isset($aMailbox['MSG_HEADERS'][$passed_id]['MESSAGE_OBJECT']) && |
63 | is_object($aMailbox['MSG_HEADERS'][$passed_id]['MESSAGE_OBJECT']) ) { |
64 | $message = $aMailbox['MSG_HEADERS'][$passed_id]['MESSAGE_OBJECT']; |
65 | } else { |
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66 | $message = sqimap_get_message($imapConnection, $passed_id, $mailbox); |
67 | $aMailbox['MSG_HEADERS'][$passed_id]['MESSAGE_OBJECT'] = $message; |
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68 | } |
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69 | |
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70 | $subject = $message->rfc822_header->subject; |
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71 | if ($ent_id) { |
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72 | // replace message with message part, if message part is requested. |
73 | $message = $message->getEntity($ent_id); |
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74 | $header = $message->header; |
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75 | |
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76 | if ($message->rfc822_header) { |
77 | $subject = $message->rfc822_header->subject; |
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78 | } else { |
79 | $header = $message->header; |
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80 | } |
81 | $type0 = $header->type0; |
82 | $type1 = $header->type1; |
83 | $encoding = strtolower($header->encoding); |
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84 | } else { |
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85 | /* raw message */ |
86 | $type0 = 'message'; |
87 | $type1 = 'rfc822'; |
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88 | $encoding = 'US-ASCII'; |
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89 | $header = $message->header; |
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90 | } |
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91 | |
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92 | /* |
93 | * lets redefine message as this particular entity that we wish to display. |
94 | * it should hold only the header for this entity. We need to fetch the body |
95 | * yet before we can display anything. |
96 | */ |
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97 | |
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98 | if (isset($override_type0)) { |
99 | $type0 = $override_type0; |
100 | } |
101 | if (isset($override_type1)) { |
102 | $type1 = $override_type1; |
103 | } |
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104 | $filename = ''; |
105 | if (is_object($message->header->disposition)) { |
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106 | $filename = $header->disposition->getProperty('filename'); |
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107 | if (!$filename) { |
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108 | $filename = $header->disposition->getProperty('name'); |
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109 | } |
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110 | if (!$filename) { |
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111 | $filename = $header->getParameter('name'); |
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112 | } |
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113 | } else { |
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114 | $filename = $header->getParameter('name'); |
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115 | } |
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116 | |
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117 | $filename = decodeHeader($filename,true,false); |
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118 | $filename = charset_encode($filename,$default_charset,false); |
119 | |
120 | // If name is not set, use subject of email |
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121 | if (strlen($filename) < 1) { |
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122 | $filename = decodeHeader($subject, true, true); |
123 | $filename = charset_encode($filename,$default_charset,false); |
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124 | if ($type1 == 'plain' && $type0 == 'text') |
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125 | $suffix = 'txt'; |
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126 | else if ($type1 == 'richtext' && $type0 == 'text') |
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127 | $suffix = 'rtf'; |
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128 | else if ($type1 == 'postscript' && $type0 == 'application') |
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129 | $suffix = 'ps'; |
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130 | else if ($type1 == 'rfc822' && $type0 == 'message') |
131 | $suffix = 'msg'; |
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132 | else |
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133 | $suffix = $type1; |
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134 | |
135 | if ($filename == '') |
136 | $filename = 'untitled' . strip_tags($ent_id); |
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137 | $filename = $filename . '.' . $suffix; |
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138 | } |
139 | |
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140 | /** |
141 | * Update mailbox_cache and close session in order to prevent |
142 | * script locking on larger downloads. SendDownloadHeaders() and |
143 | * mime_print_body_lines() don't write information to session. |
144 | * mime_print_body_lines() call duration depends on size of |
145 | * attachment and script can cause interface lockups, if session |
146 | * is not closed. |
147 | */ |
148 | $mailbox_cache[$aMailbox['NAME']] = $aMailbox; |
149 | sqsession_register($mailbox_cache,'mailbox_cache'); |
150 | session_write_close(); |
151 | |
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152 | /* |
153 | * Note: |
154 | * The following sections display the attachment in different |
155 | * ways depending on how they choose. The first way will download |
156 | * under any circumstance. This sets the Content-type to be |
157 | * applicatin/octet-stream, which should be interpreted by the |
158 | * browser as "download me". |
159 | * The second method (view) is used for images or other formats |
160 | * that should be able to be handled by the browser. It will |
161 | * most likely display the attachment inline inside the browser. |
162 | * And finally, the third one will be used by default. If it |
163 | * is displayable (text or html), it will load them up in a text |
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164 | * viewer (built in to SquirrelMail). Otherwise, it sets the |
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165 | * content-type as application/octet-stream |
166 | */ |
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167 | if (isset($absolute_dl) && $absolute_dl) { |
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168 | SendDownloadHeaders($type0, $type1, $filename, 1); |
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169 | } else { |
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170 | SendDownloadHeaders($type0, $type1, $filename, 0); |
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171 | } |
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172 | /* be aware that any warning caused by download.php will corrupt the |
173 | * attachment in case of ERROR reporting = E_ALL and the output is the screen */ |
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174 | mime_print_body_lines ($imapConnection, $passed_id, $ent_id, $encoding); |
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175 | |