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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 © 1999-2006 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 | header('Pragma: '); |
26 | header('Cache-Control: cache'); |
27 | |
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28 | /* globals */ |
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29 | sqgetGlobalVar('mailbox_cache',$mailbox_cache,SQ_SESSION); |
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30 | sqgetGlobalVar('messages', $messages, SQ_SESSION); |
31 | sqgetGlobalVar('mailbox', $mailbox, SQ_GET); |
32 | sqgetGlobalVar('ent_id', $ent_id, SQ_GET); |
33 | sqgetGlobalVar('absolute_dl',$absolute_dl, SQ_GET); |
34 | if ( sqgetGlobalVar('passed_id', $temp, SQ_GET) ) { |
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35 | $passed_id = (int) $temp; |
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36 | } |
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37 | if (!sqgetGlobalVar('account', $account, SQ_GET) ) { |
38 | $account = 0; |
39 | } |
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40 | |
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41 | global $default_charset; |
42 | set_my_charset(); |
43 | |
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44 | /* end globals */ |
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45 | |
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46 | $imapConnection = sqimap_login($username, false, $imapServerAddress, $imapPort, 0); |
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47 | $aMailbox = sqm_api_mailbox_select($imapConnection, $account, $mailbox,array(),array()); |
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48 | |
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49 | if (isset($aMailbox['MSG_HEADERS'][$passed_id]['MESSAGE_OBJECT']) && |
50 | is_object($aMailbox['MSG_HEADERS'][$passed_id]['MESSAGE_OBJECT']) ) { |
51 | $message = $aMailbox['MSG_HEADERS'][$passed_id]['MESSAGE_OBJECT']; |
52 | } else { |
53 | $message = sqimap_get_message($imapConnection, $passed_id, $mailbox); |
54 | $aMailbox['MSG_HEADERS'][$passed_id]['MESSAGE_OBJECT'] = $message; |
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55 | } |
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56 | |
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57 | $subject = $message->rfc822_header->subject; |
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58 | if ($ent_id) { |
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59 | // replace message with message part, if message part is requested. |
60 | $message = $message->getEntity($ent_id); |
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61 | $header = $message->header; |
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62 | |
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63 | if ($message->rfc822_header) { |
64 | $subject = $message->rfc822_header->subject; |
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65 | } else { |
66 | $header = $message->header; |
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67 | } |
68 | $type0 = $header->type0; |
69 | $type1 = $header->type1; |
70 | $encoding = strtolower($header->encoding); |
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71 | } else { |
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72 | /* raw message */ |
73 | $type0 = 'message'; |
74 | $type1 = 'rfc822'; |
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75 | $encoding = 'US-ASCII'; |
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76 | $header = $message->header; |
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77 | } |
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78 | |
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79 | /* |
80 | * lets redefine message as this particular entity that we wish to display. |
81 | * it should hold only the header for this entity. We need to fetch the body |
82 | * yet before we can display anything. |
83 | */ |
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84 | |
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85 | if (isset($override_type0)) { |
86 | $type0 = $override_type0; |
87 | } |
88 | if (isset($override_type1)) { |
89 | $type1 = $override_type1; |
90 | } |
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91 | $filename = ''; |
92 | if (is_object($message->header->disposition)) { |
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93 | $filename = $header->disposition->getProperty('filename'); |
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94 | if (!$filename) { |
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95 | $filename = $header->disposition->getProperty('name'); |
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96 | } |
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97 | if (!$filename) { |
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98 | $filename = $header->getParameter('name'); |
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99 | } |
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100 | } else { |
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101 | $filename = $header->getParameter('name'); |
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102 | } |
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103 | |
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104 | $filename = decodeHeader($filename,true,false); |
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105 | $filename = charset_encode($filename,$default_charset,false); |
106 | |
107 | // If name is not set, use subject of email |
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108 | if (strlen($filename) < 1) { |
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109 | $filename = decodeHeader($subject, true, true); |
110 | $filename = charset_encode($filename,$default_charset,false); |
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111 | if ($type1 == 'plain' && $type0 == 'text') |
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112 | $suffix = 'txt'; |
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113 | else if ($type1 == 'richtext' && $type0 == 'text') |
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114 | $suffix = 'rtf'; |
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115 | else if ($type1 == 'postscript' && $type0 == 'application') |
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116 | $suffix = 'ps'; |
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117 | else if ($type1 == 'rfc822' && $type0 == 'message') |
118 | $suffix = 'msg'; |
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119 | else |
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120 | $suffix = $type1; |
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121 | |
122 | if ($filename == '') |
123 | $filename = 'untitled' . strip_tags($ent_id); |
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124 | $filename = $filename . '.' . $suffix; |
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125 | } |
126 | |
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127 | /** |
128 | * Update mailbox_cache and close session in order to prevent |
129 | * script locking on larger downloads. SendDownloadHeaders() and |
130 | * mime_print_body_lines() don't write information to session. |
131 | * mime_print_body_lines() call duration depends on size of |
132 | * attachment and script can cause interface lockups, if session |
133 | * is not closed. |
134 | */ |
135 | $mailbox_cache[$aMailbox['NAME']] = $aMailbox; |
136 | sqsession_register($mailbox_cache,'mailbox_cache'); |
137 | session_write_close(); |
138 | |
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139 | /* |
140 | * Note: |
141 | * The following sections display the attachment in different |
142 | * ways depending on how they choose. The first way will download |
143 | * under any circumstance. This sets the Content-type to be |
144 | * applicatin/octet-stream, which should be interpreted by the |
145 | * browser as "download me". |
146 | * The second method (view) is used for images or other formats |
147 | * that should be able to be handled by the browser. It will |
148 | * most likely display the attachment inline inside the browser. |
149 | * And finally, the third one will be used by default. If it |
150 | * is displayable (text or html), it will load them up in a text |
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151 | * viewer (built in to SquirrelMail). Otherwise, it sets the |
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152 | * content-type as application/octet-stream |
153 | */ |
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154 | if (isset($absolute_dl) && $absolute_dl) { |
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155 | SendDownloadHeaders($type0, $type1, $filename, 1); |
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156 | } else { |
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157 | SendDownloadHeaders($type0, $type1, $filename, 0); |
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158 | } |
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159 | /* be aware that any warning caused by download.php will corrupt the |
160 | * attachment in case of ERROR reporting = E_ALL and the output is the screen */ |
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161 | mime_print_body_lines ($imapConnection, $passed_id, $ent_id, $encoding); |
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162 | |