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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 © 1999-2009 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 | /** This is the download page */ |
16 | define('PAGE_NAME', 'download'); |
17 | |
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18 | /** |
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19 | * Include the SquirrelMail initialization file. |
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20 | */ |
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21 | require('../include/init.php'); |
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22 | |
23 | /* SquirrelMail required files. */ |
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24 | require(SM_PATH . 'functions/imap_general.php'); |
25 | require(SM_PATH . 'functions/mailbox_display.php'); |
26 | require(SM_PATH . 'functions/mime.php'); |
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27 | |
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28 | /** |
29 | * If a message is viewed from the search page, $aMailbox[$passed_id]['MESSAGE_OBJECT'] |
30 | * is not initialized, which makes this page error out on line 65 with an |
31 | * undefined function. We need to include some additional files in case the |
32 | * object has not been initialized. |
33 | * |
34 | * TODO: Determine why the object in question is not initialized when coming from |
35 | * a search page and correct. Once that is done, we can remove these |
36 | * includes. |
37 | */ |
38 | require(SM_PATH . 'functions/imap_messages.php'); |
39 | require(SM_PATH . 'functions/date.php'); |
40 | |
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41 | header('Pragma: '); |
42 | header('Cache-Control: cache'); |
43 | |
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44 | /* globals */ |
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45 | sqgetGlobalVar('mailbox_cache',$mailbox_cache,SQ_SESSION); |
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46 | sqgetGlobalVar('messages', $messages, SQ_SESSION); |
47 | sqgetGlobalVar('mailbox', $mailbox, SQ_GET); |
48 | sqgetGlobalVar('ent_id', $ent_id, SQ_GET); |
49 | sqgetGlobalVar('absolute_dl',$absolute_dl, SQ_GET); |
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50 | sqgetGlobalVar('force_crlf', $force_crlf, SQ_GET); |
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51 | sqgetGlobalVar('passed_id', $passed_id, SQ_GET, NULL, SQ_TYPE_BIGINT); |
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52 | if (!sqgetGlobalVar('account', $account, SQ_GET) ) { |
53 | $account = 0; |
54 | } |
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55 | |
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56 | global $default_charset; |
57 | set_my_charset(); |
58 | |
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59 | /* end globals */ |
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60 | |
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61 | $imapConnection = sqimap_login($username, false, $imapServerAddress, $imapPort, 0); |
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62 | $aMailbox = sqm_api_mailbox_select($imapConnection, $account, $mailbox,array(),array()); |
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63 | |
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64 | if (isset($aMailbox['MSG_HEADERS'][$passed_id]['MESSAGE_OBJECT']) && |
65 | is_object($aMailbox['MSG_HEADERS'][$passed_id]['MESSAGE_OBJECT']) ) { |
66 | $message = $aMailbox['MSG_HEADERS'][$passed_id]['MESSAGE_OBJECT']; |
67 | } else { |
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68 | $message = sqimap_get_message($imapConnection, $passed_id, $mailbox); |
69 | $aMailbox['MSG_HEADERS'][$passed_id]['MESSAGE_OBJECT'] = $message; |
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70 | } |
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71 | |
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72 | $subject = $message->rfc822_header->subject; |
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73 | if ($ent_id) { |
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74 | // replace message with message part, if message part is requested. |
75 | $message = $message->getEntity($ent_id); |
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76 | $header = $message->header; |
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77 | |
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78 | if ($message->rfc822_header) { |
79 | $subject = $message->rfc822_header->subject; |
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80 | } else { |
81 | $header = $message->header; |
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82 | } |
83 | $type0 = $header->type0; |
84 | $type1 = $header->type1; |
85 | $encoding = strtolower($header->encoding); |
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86 | } else { |
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87 | /* raw message */ |
88 | $type0 = 'message'; |
89 | $type1 = 'rfc822'; |
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90 | $encoding = '7bit'; |
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91 | $header = $message->header; |
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92 | } |
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93 | |
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94 | /* |
95 | * lets redefine message as this particular entity that we wish to display. |
96 | * it should hold only the header for this entity. We need to fetch the body |
97 | * yet before we can display anything. |
98 | */ |
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99 | |
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100 | if (isset($override_type0)) { |
101 | $type0 = $override_type0; |
102 | } |
103 | if (isset($override_type1)) { |
104 | $type1 = $override_type1; |
105 | } |
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106 | $filename = ''; |
107 | if (is_object($message->header->disposition)) { |
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108 | $filename = $header->disposition->getProperty('filename'); |
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109 | if (!$filename) { |
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110 | $filename = $header->disposition->getProperty('name'); |
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111 | } |
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112 | if (!$filename) { |
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113 | $filename = $header->getParameter('name'); |
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114 | } |
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115 | } else { |
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116 | $filename = $header->getParameter('name'); |
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117 | } |
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118 | |
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119 | $filename = decodeHeader($filename,true,false); |
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120 | $filename = charset_encode($filename,$default_charset,false); |
121 | |
122 | // If name is not set, use subject of email |
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123 | if (strlen($filename) < 1) { |
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124 | $filename = decodeHeader($subject, true, true); |
125 | $filename = charset_encode($filename,$default_charset,false); |
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126 | if ($type1 == 'plain' && $type0 == 'text') |
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127 | $suffix = 'txt'; |
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128 | else if ($type1 == 'richtext' && $type0 == 'text') |
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129 | $suffix = 'rtf'; |
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130 | else if ($type1 == 'postscript' && $type0 == 'application') |
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131 | $suffix = 'ps'; |
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132 | else if ($type1 == 'rfc822' && $type0 == 'message') |
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133 | $suffix = 'eml'; |
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134 | else |
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135 | $suffix = $type1; |
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136 | |
137 | if ($filename == '') |
138 | $filename = 'untitled' . strip_tags($ent_id); |
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139 | $filename = $filename . '.' . $suffix; |
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140 | } |
141 | |
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142 | /** |
143 | * Update mailbox_cache and close session in order to prevent |
144 | * script locking on larger downloads. SendDownloadHeaders() and |
145 | * mime_print_body_lines() don't write information to session. |
146 | * mime_print_body_lines() call duration depends on size of |
147 | * attachment and script can cause interface lockups, if session |
148 | * is not closed. |
149 | */ |
150 | $mailbox_cache[$aMailbox['NAME']] = $aMailbox; |
151 | sqsession_register($mailbox_cache,'mailbox_cache'); |
152 | session_write_close(); |
153 | |
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154 | /* |
155 | * Note: |
156 | * The following sections display the attachment in different |
157 | * ways depending on how they choose. The first way will download |
158 | * under any circumstance. This sets the Content-type to be |
159 | * applicatin/octet-stream, which should be interpreted by the |
160 | * browser as "download me". |
161 | * The second method (view) is used for images or other formats |
162 | * that should be able to be handled by the browser. It will |
163 | * most likely display the attachment inline inside the browser. |
164 | * And finally, the third one will be used by default. If it |
165 | * is displayable (text or html), it will load them up in a text |
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166 | * viewer (built in to SquirrelMail). Otherwise, it sets the |
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167 | * content-type as application/octet-stream |
168 | */ |
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169 | if (isset($absolute_dl) && $absolute_dl) { |
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170 | SendDownloadHeaders($type0, $type1, $filename, 1); |
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171 | } else { |
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172 | SendDownloadHeaders($type0, $type1, $filename, 0); |
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173 | } |
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174 | /* be aware that any warning caused by download.php will corrupt the |
175 | * attachment in case of ERROR reporting = E_ALL and the output is the screen */ |
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176 | mime_print_body_lines ($imapConnection, $passed_id, $ent_id, $encoding, 'php://stdout', $force_crlf); |
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177 | |