| 1 | #!/usr/bin/perl |
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| 2 | ########################################################################### |
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| 3 | # |
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| 4 | # Copyright Dan Cardamore <wombat@hld.ca> 2000 - 2001 |
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| 5 | # This program is licensed under the GNU GPL. Since this is free |
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| 6 | # software, the author assumes no liability for it and the damages |
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| 7 | # that it may cause. |
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| 8 | # |
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| 9 | # Please read the README file. |
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| 10 | # http://www.hld.ca/opensource/hldfilter |
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| 11 | # |
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| 12 | ########################################################################### |
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| 13 | # $rcs = ' $Id: hldfilter,v 3.1 2001/06/01 17:35:32 wombat Exp $ ' ; |
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| 14 | ########################################################################### |
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| 15 | |
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| 16 | use strict; |
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| 17 | use Mail::Audit; # this is for filtering mail |
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| 18 | use Date::Manip; # this is for logging the date |
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| 19 | use Mail::Address; # For extracting email addresses out |
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| 20 | use Mail::RBL; # Real Time black hole list |
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| 21 | use Mail::CheckUser; # Checks if the email address is valid |
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| 22 | use MIME::Lite; # For sending mail |
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| 23 | use Getopt::Long; # for getting command line options |
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| 24 | |
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| 25 | ############################################################################ |
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| 26 | |
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| 27 | use vars ( |
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| 28 | '$VERSION', |
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| 29 | '$home', |
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| 30 | '$now', |
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| 31 | '$msg', |
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| 32 | '$from', |
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| 33 | '$to', |
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| 34 | '$subject', |
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| 35 | '$cc', |
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| 36 | '$configDir', |
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| 37 | '$logfile', |
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| 38 | '%rc', |
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| 39 | '%mailback', |
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| 40 | '%rules', |
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| 41 | '%subjectrules', |
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| 42 | '%forwardrules', |
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| 43 | '@reject', |
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| 44 | '@rejectspam', |
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| 45 | '@ignore', |
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| 46 | '$opt_reject', |
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| 47 | '$opt_forward', |
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| 48 | '$opt_rejectspam', |
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| 49 | '$opt_ignore', |
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| 50 | '$opt_version', |
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| 51 | '$opt_spamcop', |
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| 52 | '$opt_addrule', |
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| 53 | '$opt_addsubjectrule', |
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| 54 | '$opt_extractfrom', |
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| 55 | '$opt_extractto', |
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| 56 | '$opt_extractsubject', |
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| 57 | '$opt_extractcc', |
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| 58 | '$opt_from', |
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| 59 | '$opt_to', |
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| 60 | '$opt_subject', |
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| 61 | '$opt_cc', |
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| 62 | '$opt_folder', |
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| 63 | '$opt_help', |
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| 64 | '$opt_about', |
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| 65 | '$opt_init' |
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| 66 | ); |
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| 67 | |
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| 68 | $VERSION = "2.4"; |
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| 69 | my $uid = $>; |
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| 70 | my $home = (getpwuid ($uid))[7]; |
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| 71 | my $configDir = $home . "/.hldfilter"; |
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| 72 | my $logfile = $configDir . "/log"; |
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| 73 | |
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| 74 | sub usage { |
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| 75 | print <<USAGE; |
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| 76 | hldfilter --option value -option2 value |
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| 77 | Copyright Dan Cardamore 2000-2001. <wombat\@hld.ca> |
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| 78 | http://www.hld.ca/opensource/hldfilter |
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| 79 | Options: |
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| 80 | --reject:\t\tAdd sender to reject list |
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| 81 | --forward:\t\tForward this message |
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| 82 | --ignore:\t\tAdd sender to ignore list |
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| 83 | --rejectspam:\t\tAdd sender to rejectspam list |
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| 84 | --init:\t\tInitialize configuration files for HLDFilter |
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| 85 | --about:\t\tInformation about this program |
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| 86 | --version:\t\tDisplay version number |
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| 87 | --addsubjectrule:\tCreate a subject rule. A prompt for the subject |
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| 88 | \t\t\twill be given. |
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| 89 | --extractfrom\t\tWhen a piped message is given, the "From: " field will |
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| 90 | \t\t\tbe extracted. |
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| 91 | --extractsubject\tWhen a piped message is given, the "Subject: " field |
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| 92 | \t\t\twill be extracted. |
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| 93 | --extractto\t\tWhen a piped message is given, the "To: " field will |
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| 94 | \t\t\tbe extracted. |
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| 95 | --extractcc\t\tWhen a piped message is given, the "Cc: " field will |
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| 96 | \t\t\tbe extracted. |
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| 97 | --from\t\tSpecify the "From: " field. |
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| 98 | --to\t\t\tSpecify the "To: " field. |
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| 99 | --cc\t\t\tSpecify the "Cc: " field. |
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| 100 | --subject\t\tSpecify the "Subject: " field. |
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| 101 | --folder\t\tSpecify the "Folder: " field. |
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| 102 | USAGE |
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| 103 | exit; |
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| 104 | } |
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| 105 | |
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| 106 | sub commandLine { |
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| 107 | &GetOptions( |
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| 108 | "reject", \$opt_reject, |
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| 109 | "forward", \$opt_forward, |
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| 110 | "ignore", \$opt_ignore, |
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| 111 | "about", \$opt_about, |
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| 112 | "version", \$opt_version, |
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| 113 | "init", \$opt_init, |
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| 114 | "rejectspam", \$opt_rejectspam, |
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| 115 | "spamcop", \$opt_spamcop, |
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| 116 | "addrule", \$opt_addrule, |
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| 117 | "addsubjectrule", \$opt_addsubjectrule, |
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| 118 | "extractfrom", \$opt_extractfrom, |
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| 119 | "extractcc", \$opt_extractcc, |
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| 120 | "extractto", \$opt_extractto, |
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| 121 | "extractsubject", \$opt_extractsubject, |
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| 122 | "from=s", \$opt_from, |
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| 123 | "to=s", \$opt_to, |
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| 124 | "cc=s", \$opt_cc, |
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| 125 | "subject=s", \$opt_subject, |
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| 126 | "folder=s", \$opt_folder, |
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| 127 | "help", \$opt_help, |
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| 128 | "<>", \&usage |
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| 129 | ); |
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| 130 | |
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| 131 | if (defined $opt_help) { |
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| 132 | &usage; |
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| 133 | } |
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| 134 | |
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| 135 | if (defined $opt_version) { |
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| 136 | print "hldfilter version $VERSION\n"; |
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| 137 | exit; |
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| 138 | } |
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| 139 | |
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| 140 | # check if we got any parameters or not |
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| 141 | unless (defined $opt_reject or defined $opt_forward or defined $opt_ignore |
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| 142 | or defined $opt_rejectspam or defined $opt_spamcop or |
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| 143 | defined $opt_addrule or defined $opt_addsubjectrule or |
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| 144 | defined $opt_about or defined $opt_init) { |
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| 145 | return; |
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| 146 | } |
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| 147 | |
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| 148 | if (defined $opt_about) { |
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| 149 | print <<ABOUT; |
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| 150 | Copyright Dan Cardamore 2000-2001. <wombat\@hld.ca> |
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| 151 | http://www.hld.ca/opensource/hldfilter |
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| 152 | |
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| 153 | HLDFilter is an email filtering program which can do many things including |
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| 154 | web based statistics of this filtering, auto responder, and auto spam |
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| 155 | complaints. |
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| 156 | |
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| 157 | This program is released under the GNU GPL. It is important to note that |
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| 158 | no warranty of any kind is offered or implied with this software. |
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| 159 | |
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| 160 | Please email me at wombat\@hld.ca for any bugs. General discussions should be |
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| 161 | directed to the mailing list at hldfilter\@hld.ca. |
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| 162 | |
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| 163 | ABOUT |
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| 164 | |
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| 165 | exit; |
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| 166 | } |
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| 167 | |
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| 168 | # Initialize the users configuration |
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| 169 | if (defined $opt_init) { |
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| 170 | print "Your config dir is: $configDir\n"; |
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| 171 | |
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| 172 | if (-e $configDir) { |
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| 173 | print "$configDir exists. Please delete it before running init\n"; |
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| 174 | exit(1); |
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| 175 | } |
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| 176 | |
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| 177 | if (-e "$home/.forward") { |
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| 178 | print "$home/.forward exists. " . |
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| 179 | "Please delete it before running init\n"; |
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| 180 | exit 1; |
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| 181 | } |
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| 182 | |
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| 183 | print "What is your mail folder directory (not spool): "; |
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| 184 | my $maildir = <STDIN>; |
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| 185 | chop $maildir; |
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| 186 | $maildir =~ s/\/$//; # remove end / if any |
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| 187 | |
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| 188 | |
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| 189 | print "Where do you want your stats directory?\n"; |
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| 190 | print " Note: This can be web accessible if you want, but does\n"; |
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| 191 | print " not need to be.\n"; |
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| 192 | print "Stats Directory: "; |
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| 193 | my $statsdir = <STDIN>; |
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| 194 | chop $statsdir; |
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| 195 | $statsdir =~ s/\/$//; # remove end / if any |
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| 196 | |
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| 197 | |
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| 198 | print "Your email address: "; |
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| 199 | my $email = <STDIN>; |
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| 200 | chop $email; |
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| 201 | |
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| 202 | if (not defined $email or not defined $statsdir or not defined $maildir) |
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| 203 | { |
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| 204 | print "You must specify all the previous options!\n"; |
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| 205 | exit 1; |
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| 206 | } |
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| 207 | |
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| 208 | mkdir $configDir, 0700 or die print $!; |
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| 209 | open (FILE, ">$configDir/hldfilter.rc"); |
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| 210 | flock (FILE, 2); |
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| 211 | print FILE <<HLDFILTERRCFILE; |
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| 212 | # HLDFilter Config File. Anything following a '#' will be ignored. |
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| 213 | |
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| 214 | maildir=$maildir # the directorying containing mail folders |
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| 215 | statsdir=$statsdir # the stats direcotory |
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| 216 | |
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| 217 | loglevel=1 # set to 0 if you don't want logs |
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| 218 | statslevel=1 # set to 0 if you don't want stats |
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| 219 | |
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| 220 | email=$email # your email address |
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| 221 | smtpserver=localhost # your outgoing mailserver |
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| 222 | rejectmsg=Message Not Accepted # message to reject with |
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| 223 | |
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| 224 | CheckSenderValidity=no # check how valid the sender's email address is |
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| 225 | tidyMessages=yes # clean up messages? (not tested thorougly) |
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| 226 | replyInvalidUser=no # should we reply to invalid users? |
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| 227 | RejectedSpamBounceISP=no # send mail to abuse\@theirISP.com? |
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| 228 | IgnoreSpamBounceISP=no # do the same when we ignore |
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| 229 | InvalidUserBounceISP=no # again, but with invalid email addresses |
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| 230 | |
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| 231 | Stats_HideSpammersEmail=no # hide the spammers email addresses |
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| 232 | Stats_HideAcceptedEmail=yes # hide the accepted email addresses |
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| 233 | TopSpammersCount=10 # 0 is all. This is the max number shown |
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| 234 | TopAcceptedCount=10 # 0 is all. |
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| 235 | |
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| 236 | HLDFILTERRCFILE |
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| 237 | flock (FILE, 8); |
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| 238 | close (FILE); |
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| 239 | |
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| 240 | |
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| 241 | open (FILE, ">$configDir/forwardrules") or die ($!); |
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| 242 | flock (FILE, 2); |
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| 243 | flock (FILE, 8); |
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| 244 | close (FILE); |
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| 245 | |
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| 246 | open (FILE, ">$configDir/ignore") or die ($!); |
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| 247 | flock (FILE, 2); |
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| 248 | flock (FILE, 8); |
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| 249 | close (FILE); |
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| 250 | |
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| 251 | open (FILE, ">$configDir/reject") or die ($!); |
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| 252 | flock (FILE, 2); |
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| 253 | flock (FILE, 8); |
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| 254 | close (FILE); |
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| 255 | |
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| 256 | open (FILE, ">$configDir/log") or die ($!); |
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| 257 | flock (FILE, 2); |
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| 258 | flock (FILE, 8); |
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| 259 | close (FILE); |
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| 260 | |
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| 261 | open (FILE, ">$configDir/mailback") or die ($!); |
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| 262 | flock (FILE, 2); |
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| 263 | flock (FILE, 8); |
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| 264 | close (FILE); |
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| 265 | |
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| 266 | open (FILE, ">$configDir/rules") or die ($!); |
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| 267 | flock (FILE, 2); |
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| 268 | flock (FILE, 8); |
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| 269 | close (FILE); |
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| 270 | |
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| 271 | open (FILE, ">$configDir/rejectspam") or die ($!); |
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| 272 | flock (FILE, 2); |
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| 273 | flock (FILE, 8); |
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| 274 | close (FILE); |
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| 275 | |
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| 276 | open (FILE, ">$configDir/stats.ignore") or die ($!); |
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| 277 | flock (FILE, 2); |
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| 278 | flock (FILE, 8); |
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| 279 | close (FILE); |
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| 280 | |
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| 281 | open (FILE, ">$configDir/subjectrules") or die ($!); |
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| 282 | flock (FILE, 2); |
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| 283 | flock (FILE, 8); |
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| 284 | close (FILE); |
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| 285 | |
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| 286 | # stats |
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| 287 | mkdir "$statsdir", 0755 or die print $!; |
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| 288 | open (FILE, ">$statsdir/footer.shtml") or die ($!); |
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| 289 | flock (FILE, 2); |
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| 290 | print FILE "</body>\n</html>\n"; |
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| 291 | flock (FILE, 8); |
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| 292 | close (FILE); |
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| 293 | |
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| 294 | open (FILE, ">$statsdir/header.shtml") or die ($!); |
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| 295 | flock (FILE, 2); |
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| 296 | print FILE "<html>\n<head><META HTTP-EQUIV=\"expires\" CONTENT=\"0\">". |
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| 297 | "</head>\n<body bgcolor=white>\n\n"; |
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| 298 | flock (FILE, 8); |
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| 299 | close (FILE); |
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| 300 | |
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| 301 | open (FILE, ">$statsdir/index.shtml") or die ($!); |
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| 302 | flock (FILE, 2); |
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| 303 | print FILE "<!--#include virtual=\"header.shtml\"-->\n"; |
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| 304 | print FILE "<!--#include virtual=\"stats.shtml\"-->\n"; |
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| 305 | print FILE "<!--#include virtual=\"footer.shtml\"-->\n"; |
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| 306 | flock (FILE, 8); |
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| 307 | close (FILE); |
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| 308 | |
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| 309 | open (FILE, ">$statsdir/stats.shtml") or die ($!); |
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| 310 | flock (FILE, 2); |
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| 311 | print FILE "<b>Please run statsgen.pl to update this</b>\n"; |
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| 312 | flock (FILE, 8); |
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| 313 | close (FILE); |
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| 314 | |
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| 315 | open (FILE, ">$statsdir/stats.dat") or die ($!); |
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| 316 | flock (FILE, 2); |
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| 317 | flock (FILE, 8); |
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| 318 | close (FILE); |
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| 319 | |
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| 320 | # Update .forward file |
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| 321 | open (FILE, ">$home/.forward") or die ($!); |
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| 322 | print FILE "\"|/usr/local/bin/hldfilter\"\n"; |
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| 323 | close FILE; |
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| 324 | |
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| 325 | |
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| 326 | print <<ENDINIT; |
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| 327 | HLDFilter has been configured for your use now. Please test it by sending |
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| 328 | yourself an email. If you receive it, and the $configDir/log shows |
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| 329 | no errors than things should be working well. |
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| 330 | |
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| 331 | Please edit $configDir/hldfilter.rc to customize your install. |
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| 332 | |
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| 333 | If you would like to have your stats updated automatically, you can |
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| 334 | easily do so using cron. Type 'crontab -e' at the command line |
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| 335 | and then add the following line to that file and save it: |
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| 336 | 30 1 * * * /usr/local/bin/statsgen.pl |
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| 337 | |
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| 338 | Please email me \@ wombat\@hld.ca if you find any bugs. |
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| 339 | |
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| 340 | ENDINIT |
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| 341 | |
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| 342 | exit; |
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| 343 | } |
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| 344 | |
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| 345 | # check if we need to extract anything |
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| 346 | if (defined $opt_extractfrom or defined $opt_extractcc or |
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| 347 | defined $opt_extractto or defined $opt_extractsubject) { |
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| 348 | # extract information out of the email |
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| 349 | |
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| 350 | $msg = Mail::Audit->new; |
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| 351 | $from = $msg->from() if defined $opt_extractfrom; |
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| 352 | $cc = $msg->cc() if defined $opt_extractcc; |
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| 353 | $to = $msg->to() if defined $opt_extractto; |
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| 354 | $subject = $msg->subject() if defined $opt_extractsubject; |
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| 355 | } |
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| 356 | |
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| 357 | # override any extracted info from the message with our own commandline |
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| 358 | # args. |
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| 359 | |
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| 360 | $from = $opt_from if defined $opt_from; |
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| 361 | $to = $opt_to if defined $opt_to; |
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| 362 | $cc = $opt_cc if defined $opt_cc; |
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| 363 | $subject = $opt_subject if defined $opt_subject; |
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| 364 | |
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| 365 | # perform actions |
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| 366 | if (defined $opt_reject or defined $opt_rejectspam or defined $opt_ignore) { |
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| 367 | my $pMsg; |
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| 368 | |
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| 369 | # Handle Cases where they are running more than one at a time |
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| 370 | if (defined $opt_reject and defined $opt_rejectspam) { |
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| 371 | print "Can't reject, and rejectspam\n"; |
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| 372 | exit(1); |
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| 373 | } |
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| 374 | if (defined $opt_reject and defined $opt_ignore) { |
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| 375 | print "Can't reject, and ignore\n"; |
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| 376 | exit(1); |
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| 377 | } |
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| 378 | if (defined $opt_rejectspam and defined $opt_ignore) { |
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| 379 | print "Can't rejectspam, and ignore\n"; |
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| 380 | exit(1); |
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| 381 | } |
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| 382 | |
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| 383 | if (defined $opt_reject) { |
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| 384 | open (FILE, ">>$configDir/reject") or &error($!); |
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| 385 | $pMsg = "Rejecting"; |
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| 386 | } |
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| 387 | elsif (defined $opt_rejectspam) { |
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| 388 | open (FILE, ">>$configDir/rejectspam") or &error($!); |
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| 389 | $pMsg = "Rejecting spam"; |
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| 390 | } |
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| 391 | elsif (defined $opt_ignore) { |
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| 392 | open (FILE, ">>$configDir/ignore") or &error($!); |
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| 393 | $pMsg = "Ignoring"; |
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| 394 | } |
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| 395 | |
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| 396 | flock (FILE, 2); |
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| 397 | if (defined $from) { |
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| 398 | print FILE "$from\n"; |
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| 399 | print "$pMsg mail from $from\n"; |
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| 400 | } |
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| 401 | if (defined $to) { |
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| 402 | print FILE "$to\n"; |
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| 403 | print "$pMsg mail to $to\n"; |
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| 404 | } |
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| 405 | if (defined $cc) { |
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| 406 | print FILE "$cc\n"; |
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| 407 | print "$pMsg mail carbon-copied to $cc\n"; |
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| 408 | } |
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| 409 | flock (FILE, 8); |
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| 410 | close (FILE); |
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| 411 | |
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| 412 | unless (defined $from or defined $to or defined $cc) { |
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| 413 | print "from, to, or cc were not specified. ABORTING\n"; |
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| 414 | exit (1); |
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| 415 | } |
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| 416 | } |
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| 417 | |
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| 418 | elsif (defined $opt_forward) { |
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| 419 | print "Reading Message to forward\n"; |
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| 420 | if (not defined $to) { |
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| 421 | print "To field not specified. ABORTING\n"; |
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| 422 | exit (1); |
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| 423 | } |
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| 424 | $subject ||= ""; |
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| 425 | my $data = <STDIN>; |
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| 426 | my $sendmail = MIME::Lite->new( |
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| 427 | From => $rc{'email'}, |
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| 428 | To => $to, |
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| 429 | Subject => $subject, |
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| 430 | Type => "text/plain", |
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| 431 | Encoding => '7bit', |
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| 432 | Data => $data |
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| 433 | ); |
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| 434 | MIME::Lite->send('smtp', 'localhost', Timeout => 60); |
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| 435 | $sendmail->send; |
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| 436 | die; |
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| 437 | } |
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| 438 | |
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| 439 | elsif (defined $opt_spamcop) { |
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| 440 | print "Missing feature, next release\n"; |
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| 441 | exit (1); |
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| 442 | } |
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| 443 | |
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| 444 | elsif (defined $opt_addrule) { |
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| 445 | print "Missing feature, next release\n"; |
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| 446 | exit (1); |
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| 447 | } |
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| 448 | |
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| 449 | elsif (defined $opt_addsubjectrule) { |
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| 450 | if (not defined $subject or not defined $opt_folder) { |
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| 451 | print "folder or subject not specified. ABORTING\n"; |
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| 452 | exit (1); |
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| 453 | } |
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| 454 | open (FILE, ">>$configDir/subjectrules") or &error($1); |
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| 455 | flock (FILE, 2); |
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| 456 | print FILE "$subject~:~$opt_folder\n"; |
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| 457 | flock (FILE, 8); |
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| 458 | close (FILE); |
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| 459 | } |
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| 460 | exit; |
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| 461 | } |
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| 462 | |
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| 463 | sub writelog { |
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| 464 | my $entry = shift; |
|---|
| 465 | if ($rc{'loglevel'} < 1) { return; } # no logging, return |
|---|
| 466 | |
|---|
| 467 | my $date = UnixDate($now, "%l"); |
|---|
| 468 | open (LOG, ">>$logfile") or die "Cannot open log file"; |
|---|
| 469 | flock (LOG, 2); |
|---|
| 470 | print LOG "$date~:~$entry\n"; |
|---|
| 471 | flock (LOG, 8); |
|---|
| 472 | close (LOG); |
|---|
| 473 | return 1; |
|---|
| 474 | } |
|---|
| 475 | |
|---|
| 476 | sub error { |
|---|
| 477 | my $error = shift; |
|---|
| 478 | |
|---|
| 479 | # Build the message |
|---|
| 480 | my $sendmail = MIME::Lite->new( |
|---|
| 481 | From => $rc{'email'}, |
|---|
| 482 | To => $rc{'email'}, |
|---|
| 483 | Subject => "[HLDFilter] Error. Please look at log file", |
|---|
| 484 | Type => "text/plain", |
|---|
| 485 | Encoding => '7bit', |
|---|
| 486 | Data => $error |
|---|
| 487 | ); |
|---|
| 488 | MIME::Lite->send('smtp', 'localhost', Timeout => 60); |
|---|
| 489 | $sendmail->send; |
|---|
| 490 | |
|---|
| 491 | $error = "ERROR: $error"; |
|---|
| 492 | &writelog($error); |
|---|
| 493 | $msg->accept; # we're about to die so save the message |
|---|
| 494 | confess ($error); |
|---|
| 495 | } |
|---|
| 496 | |
|---|
| 497 | sub warn { |
|---|
| 498 | my $error = shift; |
|---|
| 499 | |
|---|
| 500 | # Build the message |
|---|
| 501 | my $sendmail = MIME::Lite->new( |
|---|
| 502 | From => $rc{'email'}, |
|---|
| 503 | To => $rc{'email'}, |
|---|
| 504 | Subject => "[HLDFilter] Error. Please look at log file", |
|---|
| 505 | Type => "text/plain", |
|---|
| 506 | Encoding => '7bit', |
|---|
| 507 | Data => $error |
|---|
| 508 | ); |
|---|
| 509 | MIME::Lite->send('smtp', 'localhost', Timeout => 60); |
|---|
| 510 | $sendmail->send; |
|---|
| 511 | |
|---|
| 512 | $error = "ERROR: $error"; |
|---|
| 513 | &writelog($error); |
|---|
| 514 | } |
|---|
| 515 | |
|---|
| 516 | sub rblCheck { |
|---|
| 517 | my @addresses = Mail::Address->parse($from); |
|---|
| 518 | my $host = $addresses[0]->host(); |
|---|
| 519 | |
|---|
| 520 | my $checkRBL = new Mail::RBL('list.org'); |
|---|
| 521 | if ($checkRBL->check($host)) { |
|---|
| 522 | # the host is in the RBL |
|---|
| 523 | my $logmsg = "SPAM(REJECTED_RBL)-> \n" . |
|---|
| 524 | " From: $from\n" . |
|---|
| 525 | " Subject: $subject\n" . |
|---|
| 526 | " To: $to\n" . |
|---|
| 527 | " Cc: $cc"; |
|---|
| 528 | &writelog($logmsg); |
|---|
| 529 | &stats("rbl"); |
|---|
| 530 | $msg->reject("You are in the real-time black hole list. REJECTED"); |
|---|
| 531 | return undef; # failure |
|---|
| 532 | } |
|---|
| 533 | return 1; |
|---|
| 534 | } |
|---|
| 535 | |
|---|
| 536 | sub checkUser { |
|---|
| 537 | unless ($rc{'CheckSenderValidity'} eq "yes") { |
|---|
| 538 | return; |
|---|
| 539 | } |
|---|
| 540 | |
|---|
| 541 | my @addresses = Mail::Address->parse($from); |
|---|
| 542 | my $emailAddress = $addresses[0]->address(); |
|---|
| 543 | |
|---|
| 544 | my $res = Mail::CheckUser::check_email($emailAddress); |
|---|
| 545 | |
|---|
| 546 | if ($res) { |
|---|
| 547 | return 1; # passed test |
|---|
| 548 | } |
|---|
| 549 | else { |
|---|
| 550 | my $logmsg; |
|---|
| 551 | &stats("checkuser"); |
|---|
| 552 | if ($rc{'replyInvalidUser'} eq "yes") { |
|---|
| 553 | $logmsg = "SPAM(REJECTED_INVALID_USER)-> \n" . |
|---|
| 554 | " From: $from\n" . |
|---|
| 555 | " Subject: $subject\n" . |
|---|
| 556 | " To: $to\n" . |
|---|
| 557 | " Cc: $cc"; |
|---|
| 558 | &writelog($logmsg); |
|---|
| 559 | replyAbuseISP() if ($rc{'InvalidUserBounceISP'} eq "yes"); |
|---|
| 560 | $msg->reject("Your email address or your mailserver are invalid"); |
|---|
| 561 | } |
|---|
| 562 | else { |
|---|
| 563 | $logmsg = "SPAM(IGNORED_INVALID_USER)-> \n" . |
|---|
| 564 | " From: $from\n" . |
|---|
| 565 | " Subject: $subject\n" . |
|---|
| 566 | " To: $to\n" . |
|---|
| 567 | " Cc: $cc"; |
|---|
| 568 | &writelog($logmsg); |
|---|
| 569 | replyAbuseISP() if ($rc{'InvalidUserBounceISP'} eq "yes"); |
|---|
| 570 | $msg->ignore; |
|---|
| 571 | } |
|---|
| 572 | return undef; |
|---|
| 573 | } |
|---|
| 574 | } |
|---|
| 575 | |
|---|
| 576 | sub stats { |
|---|
| 577 | my $type = shift; |
|---|
| 578 | if ($rc{'statslevel'} < 1) { return; } |
|---|
| 579 | |
|---|
| 580 | my @addresses = Mail::Address->parse($from); |
|---|
| 581 | my $onlyemail = $addresses[0]->address(); |
|---|
| 582 | |
|---|
| 583 | unless ( open (FILE, ">>$rc{'statsdir'}/stats.dat") ) { |
|---|
| 584 | warn($!); |
|---|
| 585 | return; |
|---|
| 586 | } |
|---|
| 587 | flock (FILE, 2); |
|---|
| 588 | print FILE "$onlyemail~:~$now~:~$type\n"; |
|---|
| 589 | flock (FILE, 8); |
|---|
| 590 | close (FILE); |
|---|
| 591 | return; |
|---|
| 592 | } |
|---|
| 593 | |
|---|
| 594 | sub getConfig { |
|---|
| 595 | open (RC, "<$configDir/hldfilter.rc") or &error($!); |
|---|
| 596 | flock (RC, 2); |
|---|
| 597 | while (<RC>) { |
|---|
| 598 | chomp; |
|---|
| 599 | s/\s*#.*//; # no comments |
|---|
| 600 | s/^\s+//; # no leading white |
|---|
| 601 | s/\s+$//; # no trailing white |
|---|
| 602 | next unless length; # anything left? |
|---|
| 603 | m/=/; |
|---|
| 604 | $rc{$`} = $'; # $key = $value |
|---|
| 605 | } |
|---|
| 606 | flock (*RC, 8); |
|---|
| 607 | close(*RC); |
|---|
| 608 | return 1; # sucess |
|---|
| 609 | } |
|---|
| 610 | |
|---|
| 611 | sub getRules { |
|---|
| 612 | open (RULES, "<$configDir/rules") or &error($!); |
|---|
| 613 | flock (RULES, 2); |
|---|
| 614 | my @ruleset = <RULES>; |
|---|
| 615 | flock (RULES, 8); |
|---|
| 616 | close (RULES); |
|---|
| 617 | chomp @ruleset; |
|---|
| 618 | |
|---|
| 619 | foreach my $line (@ruleset) { |
|---|
| 620 | if ($line eq "") { next; } |
|---|
| 621 | my ($key, $folder) = split /~:~/, $line; |
|---|
| 622 | $rules{$key} = $folder; |
|---|
| 623 | } |
|---|
| 624 | |
|---|
| 625 | open (SUBJECTRULES, "<$configDir/subjectrules") or &error($!); |
|---|
| 626 | flock (SUBJECTRULES, 2); |
|---|
| 627 | @ruleset = <SUBJECTRULES>; |
|---|
| 628 | flock (SUBJECTRULES, 8); |
|---|
| 629 | close (SUBJECTRULES); |
|---|
| 630 | chomp @ruleset; |
|---|
| 631 | |
|---|
| 632 | foreach my $line (@ruleset) { |
|---|
| 633 | if ($line eq "") { next; } |
|---|
| 634 | my ($key, $folder) = split /~:~/, $line; |
|---|
| 635 | $subjectrules{$key} = $folder; |
|---|
| 636 | } |
|---|
| 637 | |
|---|
| 638 | open (FORWARDRULES, "<$configDir/forwardrules") or &error($!); |
|---|
| 639 | flock (FORWARDRULES, 2); |
|---|
| 640 | @ruleset = <FORWARDRULES>; |
|---|
| 641 | flock (FORWARDRULES, 8); |
|---|
| 642 | close (FORWARDRULES); |
|---|
| 643 | chomp @ruleset; |
|---|
| 644 | |
|---|
| 645 | foreach my $line (@ruleset) { |
|---|
| 646 | if ($line eq "") { next; } |
|---|
| 647 | my ($key, $address) = split /~:~/, $line; |
|---|
| 648 | $forwardrules{$key} = $address; |
|---|
| 649 | } |
|---|
| 650 | |
|---|
| 651 | open (REJECT, "<$configDir/reject") or &error($!); |
|---|
| 652 | flock (REJECT, 2); |
|---|
| 653 | @reject = <REJECT>; |
|---|
| 654 | flock (REJECT, 8); |
|---|
| 655 | close (REJECT); |
|---|
| 656 | chomp @reject; |
|---|
| 657 | |
|---|
| 658 | for (my $i = 0; $i <= $#reject; $i++){ |
|---|
| 659 | if ($reject[$i] eq "") { splice @reject, $i, 1; } |
|---|
| 660 | } |
|---|
| 661 | |
|---|
| 662 | open (REJECTSPAM, "<$configDir/rejectspam") or &error($!); |
|---|
| 663 | flock (REJECTSPAM, 2); |
|---|
| 664 | @rejectspam = <REJECTSPAM>; |
|---|
| 665 | flock (REJECTSPAM, 8); |
|---|
| 666 | close (REJECTSPAM); |
|---|
| 667 | chomp @rejectspam; |
|---|
| 668 | |
|---|
| 669 | for (my $i = 0; $i <= $#rejectspam; $i++){ |
|---|
| 670 | if ($rejectspam[$i] eq "") { splice @rejectspam, $i, 1; } |
|---|
| 671 | } |
|---|
| 672 | |
|---|
| 673 | |
|---|
| 674 | open (IGNORE, "<$configDir/ignore") or &error($!); |
|---|
| 675 | flock (IGNORE, 2); |
|---|
| 676 | @ignore = <IGNORE>; |
|---|
| 677 | flock (IGNORE, 8); |
|---|
| 678 | close (IGNORE); |
|---|
| 679 | chomp @ignore; |
|---|
| 680 | |
|---|
| 681 | for (my $i = 0; $i <= $#ignore; $i++){ |
|---|
| 682 | if ($ignore[$i] eq "") { splice @ignore, $i, 1; } |
|---|
| 683 | } |
|---|
| 684 | |
|---|
| 685 | open (MAIL, "<$configDir/mailback") or &error($!); |
|---|
| 686 | flock (MAIL, 2); |
|---|
| 687 | @ruleset = <MAIL>; |
|---|
| 688 | flock (MAIL, 8); |
|---|
| 689 | close (MAIL); |
|---|
| 690 | chomp @ruleset; |
|---|
| 691 | |
|---|
| 692 | foreach my $line (@ruleset) { |
|---|
| 693 | if ($line eq "") { next; } |
|---|
| 694 | my ($key, $type, $input, $body) = split /~:~/, $line; |
|---|
| 695 | $mailback{$key} = $type . "~:~" . $input . "~:~" . $body; |
|---|
| 696 | } |
|---|
| 697 | return 1; |
|---|
| 698 | } |
|---|
| 699 | |
|---|
| 700 | sub replyAbuseISP { |
|---|
| 701 | my @addresses = Mail::Address->parse($from); |
|---|
| 702 | my $ISPdomain = $addresses[0]->host(); |
|---|
| 703 | |
|---|
| 704 | $msg->resend("abuse\@$ISPdomain"); |
|---|
| 705 | return; |
|---|
| 706 | } |
|---|
| 707 | |
|---|
| 708 | ########### |
|---|
| 709 | # # |
|---|
| 710 | # Start # |
|---|
| 711 | # # |
|---|
| 712 | ########### |
|---|
| 713 | |
|---|
| 714 | |
|---|
| 715 | &commandLine; |
|---|
| 716 | |
|---|
| 717 | &getConfig; |
|---|
| 718 | &getRules; |
|---|
| 719 | |
|---|
| 720 | $now = DateCalc("today"); |
|---|
| 721 | $msg = Mail::Audit->new unless defined $msg; |
|---|
| 722 | $msg->tidy if ($rc{'tidyMessages'} eq "yes"); |
|---|
| 723 | |
|---|
| 724 | $from = $msg->from(); |
|---|
| 725 | $to = $msg->to(); |
|---|
| 726 | $cc = $msg->cc(); |
|---|
| 727 | $subject = $msg->subject(); |
|---|
| 728 | chomp ($from, $to, $subject, $cc); |
|---|
| 729 | |
|---|
| 730 | |
|---|
| 731 | &rblCheck(); # we already rejected them at this point |
|---|
| 732 | &checkUser(); # we already rejected them at this point |
|---|
| 733 | |
|---|
| 734 | for my $pattern (keys %forwardrules) { |
|---|
| 735 | if ( ($subject =~ /$pattern/) ) { |
|---|
| 736 | my $logmsg = "Forward ($forwardrules{$pattern})-> \n" . |
|---|
| 737 | " From: $from\n" . |
|---|
| 738 | " Subject: $subject\n" . |
|---|
| 739 | " To: $to\n" . |
|---|
| 740 | " Cc: $cc"; |
|---|
| 741 | &writelog($logmsg); |
|---|
| 742 | &stats("forward~:~$forwardrules{$pattern}"); |
|---|
| 743 | |
|---|
| 744 | $msg->resend($forwardrules{$pattern}); #forward the message |
|---|
| 745 | $msg->ignore; |
|---|
| 746 | } |
|---|
| 747 | } |
|---|
| 748 | |
|---|
| 749 | ## Mailing lists |
|---|
| 750 | for my $pattern (keys %rules) { |
|---|
| 751 | if ( ($from =~ /$pattern/i) or |
|---|
| 752 | ($to =~ /$pattern/i) or ($cc =~ /$pattern/i) ) { |
|---|
| 753 | my $logmsg = "$rules{$pattern}-> \n" . |
|---|
| 754 | " From: $from\n" . |
|---|
| 755 | " Subject: $subject\n" . |
|---|
| 756 | " To: $to\n" . |
|---|
| 757 | " Cc: $cc"; |
|---|
| 758 | &writelog($logmsg); |
|---|
| 759 | &stats("normal~:~$rules{$pattern}"); |
|---|
| 760 | |
|---|
| 761 | $msg->accept($rc{'maildir'}."/".$rules{$pattern}) |
|---|
| 762 | } |
|---|
| 763 | } |
|---|
| 764 | for my $pattern (keys %subjectrules) { |
|---|
| 765 | if ( ($subject =~ /$pattern/) ) { |
|---|
| 766 | my $logmsg = "$subjectrules{$pattern}-> \n" . |
|---|
| 767 | " From: $from\n" . |
|---|
| 768 | " Subject: $subject\n" . |
|---|
| 769 | " To: $to\n" . |
|---|
| 770 | " Cc: $cc"; |
|---|
| 771 | &writelog($logmsg); |
|---|
| 772 | &stats("normal~:~$subjectrules{$pattern}"); |
|---|
| 773 | |
|---|
| 774 | $msg->accept($rc{'maildir'}."/".$subjectrules{$pattern}) |
|---|
| 775 | } |
|---|
| 776 | } |
|---|
| 777 | |
|---|
| 778 | ## Mail backs |
|---|
| 779 | for my $pattern (keys %mailback) { |
|---|
| 780 | if ($subject =~ /$pattern/) { |
|---|
| 781 | my ($type, $input, $body) = split /~:~/, $mailback{$pattern}; |
|---|
| 782 | my $logmsg = "Mail Back ($pattern)-> \n" . |
|---|
| 783 | " From: $from\n" . |
|---|
| 784 | " Subject: $subject\n" . |
|---|
| 785 | " To: $to\n" . |
|---|
| 786 | " Cc: $cc"; |
|---|
| 787 | &writelog($logmsg); |
|---|
| 788 | &stats("normal~:~mailback"); |
|---|
| 789 | |
|---|
| 790 | if ($type =~ /file/i) { |
|---|
| 791 | # Build the message |
|---|
| 792 | my $sendmail = MIME::Lite->new( |
|---|
| 793 | From => $rc{'email'}, |
|---|
| 794 | To => $from, |
|---|
| 795 | Subject => "[AutoReply] $input", |
|---|
| 796 | Type => "text/plain", |
|---|
| 797 | Encoding => '7bit', |
|---|
| 798 | Data => $body |
|---|
| 799 | ); |
|---|
| 800 | # Add the attachment |
|---|
| 801 | $sendmail->attach( |
|---|
| 802 | Encoding => "base64", |
|---|
| 803 | Path => $input |
|---|
| 804 | ); |
|---|
| 805 | MIME::Lite->send('smtp', 'localhost', Timeout => 60); |
|---|
| 806 | $sendmail->send; |
|---|
| 807 | } |
|---|
| 808 | elsif ($type =~ /command/i) { |
|---|
| 809 | my @outputA = `$input`; |
|---|
| 810 | my $output; |
|---|
| 811 | foreach my $i (@outputA) { |
|---|
| 812 | $output .= "$i\n"; |
|---|
| 813 | } |
|---|
| 814 | # Build the message |
|---|
| 815 | my $sendmail = MIME::Lite->new( |
|---|
| 816 | From => $rc{'email'}, |
|---|
| 817 | To => $from, |
|---|
| 818 | Subject => "[AutoReply] $input", |
|---|
| 819 | Type => "text/plain", |
|---|
| 820 | Encoding => '7bit', |
|---|
| 821 | Data => $output |
|---|
| 822 | ); |
|---|
| 823 | MIME::Lite->send('smtp', 'localhost', Timeout => 60); |
|---|
| 824 | $sendmail->send; |
|---|
| 825 | } |
|---|
| 826 | else { |
|---|
| 827 | &writelog("Error in config file mailback. Unknown type: $type"); |
|---|
| 828 | } |
|---|
| 829 | $msg->accept |
|---|
| 830 | } |
|---|
| 831 | } |
|---|
| 832 | |
|---|
| 833 | #Now catch spam.. this is the fun part! |
|---|
| 834 | foreach my $test (@rejectspam) { |
|---|
| 835 | if ( ($from =~ /$test/i) or ($to =~ /$test/i) ) { |
|---|
| 836 | my $logmsg = "SPAM(REJECTED)-> \n" . |
|---|
| 837 | " From: $from\n" . |
|---|
| 838 | " Subject: $subject\n" . |
|---|
| 839 | " To: $to\n" . |
|---|
| 840 | " Cc: $cc"; |
|---|
| 841 | &writelog($logmsg); |
|---|
| 842 | &stats("spam"); |
|---|
| 843 | replyAbuseISP() if ($rc{'RejectedSpamBounceISP'} eq "yes"); |
|---|
| 844 | $msg->reject("$rc{'rejectmsg'}\n"); |
|---|
| 845 | } |
|---|
| 846 | } |
|---|
| 847 | |
|---|
| 848 | foreach my $test (@reject) { |
|---|
| 849 | if ( ($from =~ /$test/i) or ($to =~ /$test/i) ) { |
|---|
| 850 | my $logmsg = "BLACKLIST(REJECTED)-> \n" . |
|---|
| 851 | " From: $from\n" . |
|---|
| 852 | " Subject: $subject\n" . |
|---|
| 853 | " To: $to\n" . |
|---|
| 854 | " Cc: $cc"; |
|---|
| 855 | &writelog($logmsg); |
|---|
| 856 | &stats("spam"); |
|---|
| 857 | replyAbuseISP() if ($rc{'RejectedBounceISP'} eq "yes"); |
|---|
| 858 | $msg->reject("$rc{'rejectmsg'}\n"); |
|---|
| 859 | } |
|---|
| 860 | } |
|---|
| 861 | |
|---|
| 862 | foreach my $test (@ignore) { |
|---|
| 863 | if ( ($from =~ /$test/i) or ($to =~ /$test/i) ) { |
|---|
| 864 | my $logmsg = "SPAM(IGNORED)-> \n" . |
|---|
| 865 | " From: $from\n" . |
|---|
| 866 | " Subject: $subject\n" . |
|---|
| 867 | " To: $to\n" . |
|---|
| 868 | " Cc: $cc"; |
|---|
| 869 | &writelog($logmsg); |
|---|
| 870 | &stats("spam"); |
|---|
| 871 | replyAbuseISP() if ($rc{'IgnoreSpamBounceISP'} eq "yes"); |
|---|
| 872 | $msg->ignore; |
|---|
| 873 | } |
|---|
| 874 | } |
|---|
| 875 | |
|---|
| 876 | |
|---|
| 877 | ### The message passed all the filters. Accept it into the inbox |
|---|
| 878 | my $logmsg = "INBOX-> \n" . |
|---|
| 879 | " From: $from\n" . |
|---|
| 880 | " Subject: $subject\n" . |
|---|
| 881 | " To: $to\n" . |
|---|
| 882 | " Cc: $cc"; |
|---|
| 883 | &writelog($logmsg); |
|---|
| 884 | &stats("normal~:~INBOX"); |
|---|
| 885 | |
|---|
| 886 | $msg->accept; # make sure to accept it if no other rules take it out. |
|---|
| 887 | |
|---|
| 888 | |
|---|
| 889 | __END__ |
|---|