3 * Message and Spam Filter Plugin - Setup script
5 * This plugin filters your inbox into different folders based upon given
6 * criteria. It is most useful for people who are subscibed to mailing lists
7 * to help organize their messages. The argument stands that filtering is
8 * not the place of the client, which is why this has been made a plugin for
9 * SquirrelMail. You may be better off using products such as Sieve or
10 * Procmail to do your filtering so it happens even when SquirrelMail isn't
13 * If you need help with this, or see improvements that can be made, please
14 * email me directly at the address above. I definately welcome suggestions
15 * and comments. This plugin, as is the case with all SquirrelMail plugins,
16 * is not directly supported by the developers. Please come to me off the
17 * mailing list if you have trouble with it.
19 * Also view plugins/README.plugins for more information.
22 * @copyright (c) 1999-2004 The SquirrelMail Project Team
23 * @license http://opensource.org/licenses/gpl-license.php GNU Public License
28 /** SquirrelMail required files. */
29 require_once(SM_PATH
. 'plugins/filters/filters.php');
32 * Imap connection control
34 * Set this to true if you have problems -- check the README file
35 * Note: This doesn't work all of the time (No idea why)
36 * Seems to be related to UW
37 * @global bool $UseSeparateImapConnection
39 global $UseSeparateImapConnection;
40 $UseSeparateImapConnection = false;
43 * User level spam filters control
45 * Set this to false if you do not want the user to be able to enable
47 * @global bool $AllowSpamFilters
49 global $AllowSpamFilters;
50 $AllowSpamFilters = true;
53 * SpamFilters YourHop Setting
55 * Set this to a string containing something unique to the line in the
56 * header you want me to find IPs to scan the databases with. For example,
57 * All the email coming IN from the internet to my site has a line in
58 * the header that looks like (all on one line):
59 * Received: [from usw-sf-list1.sourceforge.net (usw-sf-fw2.sourceforge.net
60 * [216.136.171.252]) by firewall.persistence.com (SYSADMIN-antispam
62 * Since this line indicates the FIRST hop the email takes into my network,
63 * I set my SpamFilters_YourHop to 'by firewall.persistence.com' but any
64 * case-sensitive string will do. You can set it to something found on
65 * every line in the header (like ' ') if you want to scan all IPs in
66 * the header (lots of false alarms here tho).
67 * @global string $SpamFilters_YourHop
69 global $SpamFilters_YourHop;
70 $SpamFilters_YourHop = ' ';
73 * Commercial Spam Filters Control
75 * Some of the SPAM filters are COMMERCIAL and require a fee. If your users
76 * select them and you're not allowed to use them, it will make SPAM filtering
77 * very slow. If you don't want them to even be offered to the users, you
78 * should set SpamFilters_ShowCommercial to false.
79 * @global bool $SpamFilters_ShowCommercial
81 global $SpamFilters_ShowCommercial;
82 $SpamFilters_ShowCommercial = false;
87 * A cache of IPs we've already checked or are known bad boys or good boys
88 * ie. $SpamFilters_DNScache["210.54.220.18"] = true;
89 * would tell filters to not even bother doing the DNS queries for that
90 * IP and any email coming from it are SPAM - false would mean that any
91 * email coming from it would NOT be SPAM
92 * @global array $SpamFilters_DNScache
94 global $SpamFilters_DNScache;
97 * Path to bulkquery program
99 * Absolute path to the bulkquery program. Leave blank if you don't have
100 * bulkquery compiled, installed, and lwresd running. See the README file
101 * in the bulkquery directory for more information on using bulkquery.
102 * @global string $SpamFilters_BulkQuery
104 global $SpamFilters_BulkQuery;
105 $SpamFilters_BulkQuery = '';
108 * Shared filtering cache control
110 * Do you want to use a shared file for the DNS cache or a session variable?
111 * Using a shared file means that every user can benefit from any queries
112 * made by other users. The shared file is named "dnscache" and is in the
114 * @global bool $SpamFilters_SharedCache
116 global $SpamFilters_SharedCache;
117 $SpamFilters_SharedCache = true;
122 * How long should DNS query results be cached for by default (in seconds)?
123 * @global integer $SpamFilters_CacheTTL
125 global $SpamFilters_CacheTTL;
126 $SpamFilters_CacheTTL = 7200;
132 function squirrelmail_plugin_init_filters() {
133 global $squirrelmail_plugin_hooks;
135 if (sqgetGlobalVar('mailbox',$mailbox,SQ_FORM
)) {
136 sqgetGlobalVar('mailbox',$mailbox,SQ_FORM
);
141 $squirrelmail_plugin_hooks['left_main_before']['filters'] = 'start_filters';
142 if (isset($mailbox) && $mailbox == 'INBOX') {
143 $squirrelmail_plugin_hooks['right_main_after_header']['filters'] = 'start_filters';
145 $squirrelmail_plugin_hooks['optpage_register_block']['filters'] = 'filters_optpage_register_block';
146 $squirrelmail_plugin_hooks['special_mailbox']['filters'] = 'filters_special_mailbox';
147 $squirrelmail_plugin_hooks['rename_or_delete_folder']['filters'] = 'update_for_folder';
148 $squirrelmail_plugin_hooks['webmail_bottom']['filters'] = 'start_filters';
152 * Report spam folter as special mailbox
153 * @param string $mb variable used by hook
154 * @return string spam folder name
157 function filters_special_mailbox( $mb ) {
158 global $data_dir, $username;
160 return( $mb == getPref($data_dir, $username, 'filters_spam_folder', 'na' ) );
165 * Register option blocks
168 function filters_optpage_register_block() {
169 global $optpage_blocks;
170 global $AllowSpamFilters;
172 $optpage_blocks[] = array(
173 'name' => _("Message Filters"),
174 'url' => '../plugins/filters/options.php',
175 'desc' => _("Filtering enables messages with different criteria to be automatically filtered into different folders for easier organization."),
179 if ($AllowSpamFilters) {
180 $optpage_blocks[] = array(
181 'name' => _("SPAM Filters"),
182 'url' => '../plugins/filters/spamoptions.php',
183 '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)."),