| 1 | <?php |
| 2 | /** |
| 3 | * Message and Spam Filter Plugin |
| 4 | * |
| 5 | * Copyright (c) 1999-2003 The SquirrelMail Project Team |
| 6 | * Licensed under the GNU GPL. For full terms see the file COPYING. |
| 7 | * |
| 8 | * This plugin filters your inbox into different folders based upon given |
| 9 | * criteria. It is most useful for people who are subscibed to mailing lists |
| 10 | * to help organize their messages. The argument stands that filtering is |
| 11 | * not the place of the client, which is why this has been made a plugin for |
| 12 | * SquirrelMail. You may be better off using products such as Sieve or |
| 13 | * Procmail to do your filtering so it happens even when SquirrelMail isn't |
| 14 | * running. |
| 15 | * |
| 16 | * If you need help with this, or see improvements that can be made, please |
| 17 | * email me directly at the address above. I definately welcome suggestions |
| 18 | * and comments. This plugin, as is the case with all SquirrelMail plugins, |
| 19 | * is not directly supported by the developers. Please come to me off the |
| 20 | * mailing list if you have trouble with it. |
| 21 | * |
| 22 | * Also view plugins/README.plugins for more information. |
| 23 | * |
| 24 | * $Id$ |
| 25 | * @package plugins |
| 26 | * @subpackage filters |
| 27 | */ |
| 28 | |
| 29 | /** SquirrelMail required files. */ |
| 30 | require_once(SM_PATH . 'plugins/filters/filters.php'); |
| 31 | |
| 32 | /* |
| 33 | * Set this to true if you have problems -- check the README file |
| 34 | * Note: This doesn't work all of the time (No idea why) |
| 35 | * Seems to be related to UW |
| 36 | */ |
| 37 | global $UseSeparateImapConnection; |
| 38 | $UseSeparateImapConnection = false; |
| 39 | |
| 40 | /* |
| 41 | * Set this to false if you do not want the user to be able to enable |
| 42 | * spam filters |
| 43 | */ |
| 44 | global $AllowSpamFilters; |
| 45 | $AllowSpamFilters = true; |
| 46 | |
| 47 | /* |
| 48 | * Set this to a string containing something unique to the line in the |
| 49 | * header you want me to find IPs to scan the databases with. For example, |
| 50 | * All the email coming IN from the internet to my site has a line in |
| 51 | * the header that looks like (all on one line): |
| 52 | * Received: [from usw-sf-list1.sourceforge.net (usw-sf-fw2.sourceforge.net |
| 53 | * [216.136.171.252]) by firewall.persistence.com (SYSADMIN-antispam |
| 54 | * 0.2) with |
| 55 | * Since this line indicates the FIRST hop the email takes into my network, |
| 56 | * I set my SpamFilters_YourHop to 'by firewall.persistence.com' but any |
| 57 | * case-sensitive string will do. You can set it to something found on |
| 58 | * every line in the header (like ' ') if you want to scan all IPs in |
| 59 | * the header (lots of false alarms here tho). |
| 60 | */ |
| 61 | global $SpamFilters_YourHop; |
| 62 | $SpamFilters_YourHop = ' '; |
| 63 | |
| 64 | /* |
| 65 | * Some of the SPAM filters are COMMERCIAL and require a fee. If your users |
| 66 | * select them and you're not allowed to use them, it will make SPAM filtering |
| 67 | * very slow. If you don't want them to even be offered to the users, you |
| 68 | * should set SpamFilters_ShowCommercial to false. |
| 69 | */ |
| 70 | global $SpamFilters_ShowCommercial; |
| 71 | $SpamFilters_ShowCommercial = false; |
| 72 | |
| 73 | /* |
| 74 | * A cache of IPs we've already checked or are known bad boys or good boys |
| 75 | * ie. $SpamFilters_DNScache["210.54.220.18"] = true; |
| 76 | * would tell filters to not even bother doing the DNS queries for that |
| 77 | * IP and any email coming from it are SPAM - false would mean that any |
| 78 | * email coming from it would NOT be SPAM |
| 79 | */ |
| 80 | global $SpamFilters_DNScache; |
| 81 | |
| 82 | /* |
| 83 | * Absolute path to the bulkquery program. Leave blank if you don't have |
| 84 | * bulkquery compiled, installed, and lwresd running. See the README file |
| 85 | * in the bulkquery directory for more information on using bulkquery. |
| 86 | */ |
| 87 | global $SpamFilters_BulkQuery; |
| 88 | $SpamFilters_BulkQuery = ''; |
| 89 | |
| 90 | /* |
| 91 | * Do you want to use a shared file for the DNS cache or a session variable? |
| 92 | * Using a shared file means that every user can benefit from any queries |
| 93 | * made by other users. The shared file is named "dnscache" and is in the |
| 94 | * data directory. |
| 95 | */ |
| 96 | global $SpamFilters_SharedCache; |
| 97 | $SpamFilters_SharedCache = true; |
| 98 | |
| 99 | /* |
| 100 | * How long should DNS query results be cached for by default (in seconds)? |
| 101 | */ |
| 102 | global $SpamFilters_CacheTTL; |
| 103 | $SpamFilters_CacheTTL = 7200; |
| 104 | |
| 105 | function squirrelmail_plugin_init_filters() { |
| 106 | global $squirrelmail_plugin_hooks; |
| 107 | |
| 108 | if (isset($_GET['mailbox'])) { |
| 109 | $mailbox = $_GET['mailbox']; |
| 110 | } |
| 111 | elseif (isset($_POST['mailbox'])) { |
| 112 | $mailbox = $_POST['mailbox']; |
| 113 | } |
| 114 | else { |
| 115 | $mailbox = 'INBOX'; |
| 116 | } |
| 117 | |
| 118 | $squirrelmail_plugin_hooks['left_main_before']['filters'] = 'start_filters'; |
| 119 | if (isset($mailbox) && $mailbox == 'INBOX') { |
| 120 | $squirrelmail_plugin_hooks['right_main_after_header']['filters'] = 'start_filters'; |
| 121 | } |
| 122 | $squirrelmail_plugin_hooks['optpage_register_block']['filters'] = 'filters_optpage_register_block'; |
| 123 | # $squirrelmail_plugin_hooks['special_mailbox']['filters'] = 'filters_special_mailbox'; |
| 124 | $squirrelmail_plugin_hooks['rename_or_delete_folder']['filters'] = 'update_for_folder'; |
| 125 | $squirrelmail_plugin_hooks['webmail_bottom']['filters'] = 'start_filters'; |
| 126 | } |
| 127 | |
| 128 | function filters_special_mailbox( $mb ) { |
| 129 | GLOBAL $data_dir, $username; |
| 130 | |
| 131 | return( $mb == getPref($data_dir, $username, 'filters_spam_folder', 'na' ) ); |
| 132 | |
| 133 | } |
| 134 | |
| 135 | function filters_optpage_register_block() { |
| 136 | global $optpage_blocks; |
| 137 | global $AllowSpamFilters; |
| 138 | |
| 139 | $optpage_blocks[] = array( |
| 140 | 'name' => _("Message Filters"), |
| 141 | 'url' => '../plugins/filters/options.php', |
| 142 | 'desc' => _("Filtering enables messages with different criteria to be automatically filtered into different folders for easier organization."), |
| 143 | 'js' => false |
| 144 | ); |
| 145 | |
| 146 | if ($AllowSpamFilters) { |
| 147 | $optpage_blocks[] = array( |
| 148 | 'name' => _("SPAM Filters"), |
| 149 | 'url' => '../plugins/filters/spamoptions.php', |
| 150 | 'desc' => _("SPAM filters allow you to select from various DNS based blacklists to detect junk email in your INBOX and move it to another folder (like Trash)."), |
| 151 | 'js' => false |
| 152 | ); |
| 153 | } |
| 154 | } |
| 155 | ?> |