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eggdrop11.lha
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weed
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1997-01-15
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#!/usr/local/bin/tclsh
#
# weed out certain undesirables from an eggdrop userlist
# try just typing 'tclsh weed' to find out the options
# Robey Pointer, november 1994
#
# <cmwagner@gate.net>:
# I did a few bug fixes to the original weed script, things changed...
#
# when specifying other weed options they would unset the User() field and
# a maxlast weed would try and weed again and cause the script to stop due
# to User() being already unset (array nonexistant)
#
# when loadUserFile encountered an xtra field it would try and use the $info
# variable, which was supposed to be $xtra (something overlooked when the
# line was cut and pasted -- I hate it when that happens)
#
# changed the formatting of the saved weed file to match more closely to
# eggdrop 0.9tp (so this may cause incompatibilities), but when a hostmask
# field exactly matched 40 characters it would save it with no spaces after it
# and eggdrop would reject the user record. I know I could have easily changed
# one character, but I couldn't help myself. <grin>
# 5 march 96
#
# <robey, 23jul96>:
# upgrade for v2 userfiles
#
# <bruce s, 4sep96>:
# fixed xtra field from getting truncated
#
# <robey, 20sep96>:
# stopped it from mangling channel ban lists
# by default, banlist and ignorelist are exempt from weeding
set exempt {*ban *ignore}
# don't exempt ops, masters, or friends; or +p or +x
set exemptops 0 ; set exemptmasters 0 ; set exemptfriends 0
set exemptparty 0 ; set exemptfile 0
# default maximum seconds since last seen: 0 = infinite
set maxlast 0
# default maximum seconds since ban used: 0 = infinite
set maxban 0
# default maximum seconds since ignore created: 0 = infinite
set maxignore 0
# don't weed passwordless ops and/or masters -- don't weed ppl w/ no pw
set weedops 0 ; set weedmasters 0 ; set weednopw 0
# don't unop/unmaster passwordless ops and/or masters
set stripops 0 ; set stripmasters 0
# don't weed people just cos they've never logged on
set weedlurkers 0
# tricky way to get the current timestamp
set fd [open "/tmp/egg.timer." w]
close $fd
set CURRENT [file atime "/tmp/egg.timer."]
exec rm -f /tmp/egg.timer.
if {$argc < 1} {
puts stdout "\nUsage: weed <userfile> \[options\]"
puts stdout " (weeds out users from an eggdrop userlist)"
puts stdout "Output goes to <userfile>.weed"
puts stdout "Possible options:"
puts stdout " -<nick> exempt this user from weeding"
puts stdout " ^o ^m ^f exempt ops or masters or friends"
puts stdout " ^p ^x exempt party-line or file-area users"
puts stdout " +<days> weed: haven't been seen in N days"
puts stdout " :n weed: haven't EVER been seen"
puts stdout " :o :m weed: ops or masters with no password set"
puts stdout " :a weed: anyone with no pasword set"
puts stdout " o m unop/unmaster: ops or masters with no pass."
puts stdout " b<days> weed: bans not used in N days"
puts stdout " i<days> weed: ignores created over N days ago"
puts stdout ""
exit
}
puts stdout "\nWEED 5mar96, robey\n"
# process arguments
set filename [lindex $argv 0]
for {set i 1} {$i < $argc} {incr i} {
# each arg
set carg [lindex $argv $i]
if {$carg == ":n"} {
set weedlurkers 1
} elseif {$carg == ":o"} {
set weedops 1 ; set stripops 0 ; set weednopw 0
} elseif {$carg == ":m"} {
set weedmasters 1 ; set stripmasters 0 ; set weednopw 0
} elseif {$carg == ":a"} {
set weednopw 1 ; set weedops 0 ; set weedmasters 0
set stripops 0 ; set stripmasters 0
} elseif {$carg == "o"} {
set stripops 1 ; set weedops 0 ; set weednopw 0
} elseif {$carg == "m"} {
set stripmasters 1 ; set weedmasters 0 ; set weednopw 0
} elseif {$carg == "^m"} {
set exemptmasters 1
} elseif {$carg == "^o"} {
set exemptops 1
} elseif {$carg == "^f"} {
set exemptfriends 1
} elseif {$carg == "^p"} {
set exemptparty 1
} elseif {$carg == "^x"} {
set exemptfile 1
} elseif {[string index $carg 0] == "-"} {
lappend exempt [string range $carg 1 end]
} elseif {[string index $carg 0] == "+"} {
set maxlast [expr 60*60*24* [string range $carg 1 end]]
} elseif {[string index $carg 0] == "b"} {
set maxban [expr 60*60*24* [string range $carg 1 end]]
} elseif {[string index $carg 0] == "i"} {
set maxignore [expr 60*60*24* [string range $carg 1 end]]
} else {
puts stderr "UNKNOWN OPTION: '$carg'\n"
exit
}
}
if {(!$weedlurkers) && (!$weedops) && (!$weedmasters) && (!$weednopw) &&
(!$stripops) && (!$stripmasters) && ($maxlast == 0) &&
($maxban == 0) && ($maxignore == 0)} {
puts stderr "PROBLEM: You didn't specify anything to weed out.\n"
exit
}
set weeding {}
if {$weedlurkers} { set weeding "$weeding lurkers" }
if {$weedops} { set weeding "$weeding pwdless-ops" }
if {$weedmasters} { set weeding "$weeding pwdless-masters" }
if {$weednopw} { set weeding "$weeding pwdless-users" }
if {$maxlast > 0} {
set weeding "$weeding >[expr $maxlast /(60*60*24)]-days"
}
if {$maxban > 0} {
set weeding "$weeding bans>[expr $maxban /(60*60*24)]-days"
}
if {$maxignore > 0} {
set weeding "$weeding ign>[expr $maxignore /(60*60*24)]-days"
}
if {$weeding != {}} { puts stdout "Weeding:$weeding" }
set strip {}
if {$stripops} { set strip "$strip pwdless-ops" }
if {$stripmasters} { set strip "$strip pwdless-masters" }
if {$strip != {}} { puts stdout "Stripping:$strip" }
set exempting {}
if {$exemptops} { set exempting "$exempting (ops)" }
if {$exemptmasters} { set exempting "$exempting (masters)" }
if {$exemptfriends} { set exempting "$exempting (friends)" }
if {$exemptparty} { set exempting "$exempting (party-line)" }
if {$exemptfile} { set exempting "$exempting (file-area)" }
if {[llength $exempt]>2} { set exempting "$exempting [lrange $exempt 2 end]" }
if {$exempting != {}} { puts stdout "Exempt:$exempting" }
puts stdout "\nReading $filename ..."
# User($handle) { "password" "attr" "timestamp" "dccdir" "email"
# "comment" "infoline" "xtra" }
# Hostmask($handle) { "*!*@*" "*!*@*" ... }
#
# -hostmask(s) *dccdir +email =comment :infoline
# returns 1 if loaded okay
proc loadUserFile {fname} {
global User Hostmask
set oldhandle {}
if {[catch {set fd [open $fname r]}] != 0} { return 0 }
set line [string trim [gets $fd]]
if {[string range $line 1 2] != "2v"} {
puts stderr "Unknown userfile version! (not v2)\n"
exit
}
while {![eof $fd]} {
set line [string trim [gets $fd]]
if {([string index $line 0] != "#") && ([string length $line] > 0)} {
# not a comment, and something on the line!
scan $line "%s" handle
if {$handle == "-"} {
# hostmask list (shudder!)
set hmList [split [string range $line 2 end] ,]
# trim the items in this list (remove whitespace)
for {set i 0} {$i < [llength $hmList]} {incr i} {
lappend Hostmask($oldhandle) [string trim [lindex $hmList $i]]
}
} elseif {$handle == "*"} {
# dccdir
set dccdir [string trim [string range $line 2 end]]
set User($oldhandle) [lreplace $User($oldhandle) 3 3 $dccdir]
} elseif {$handle == "+"} {
# email
set email [string trim [string range $line 2 end]]
set User($oldhandle) [lreplace $User($oldhandle) 4 4 $email]
} elseif {$handle == "="} {
# comment
set comment [string trim [string range $line 2 end]]
set User($oldhandle) [lreplace $User($oldhandle) 5 5 $comment]
} elseif {$handle == ":"} {
# user info line
set info [string trim [string range $line 2 end]]
set User($oldhandle) [lreplace $User($oldhandle) 6 6 $info]
} elseif {$handle == "."} {
# xtra field
set xtra [lindex $User($oldhandle) 7]
lappend xtra [string trim [string range $line 2 end]]
set User($oldhandle) [lreplace $User($oldhandle) 7 7 $xtra]
} else {
# begin of new user
scan $line "%s %s %s %s" handle pass attr ts
set User($handle) [list $pass $attr $ts {} {} {} {} {}]
set Hostmask($handle) {}
set oldhandle $handle
}
}
}
return 1
}
# returns 1 if saved okay
proc saveUserFile fname {
global User Hostmask
if {[catch {set fd [open $fname w]}] != 0} { return 0 }
puts $fd "#2v: weed! now go away."
foreach i [array names User] {
set hmask "none"
set loop 0
set pass [lindex $User($i) 0]
set attr [lindex $User($i) 1]
set ts [lindex $User($i) 2]
puts $fd [format "%-9s %-20s %-24s %s" $i $pass $attr $ts]
for {} {$loop < [llength $Hostmask($i)]} {incr loop} {
puts $fd "- [lindex $Hostmask($i) $loop]"
}
if {[lindex $User($i) 3] != {}} { puts $fd "* [lindex $User($i) 3]" }
if {[lindex $User($i) 4] != {}} { puts $fd "+ [lindex $User($i) 4]" }
if {[lindex $User($i) 5] != {}} { puts $fd "= [lindex $User($i) 5]" }
if {[lindex $User($i) 6] != {}} { puts $fd ": [lindex $User($i) 6]" }
if {[lindex $User($i) 7] != {}} {
foreach xline [lindex $User($i) 7] {
puts $fd ". $xline"
}
# puts $fd ". [lindex $User($i) 7]"
}
}
close $fd
return 1
}
if {![loadUserFile $filename]} {
puts stderr "* Couldn't load userfile!\n"
exit
}
puts stdout "Loaded. Weeding..."
puts stdout "(pwd = no pass, -o/-m = removed op/master, lrk = never seen, exp = expired)\n"
#
# the main part
#
set total 0
set weeded 0
foreach i [array names User] {
incr total
set attr [lindex $User($i) 1]
if {([lsearch -exact $exempt $i] == -1) &&
([string range $i 0 1] != "::") &&
(([string first o $attr] == -1) || (!$exemptops)) &&
(([string first m $attr] == -1) || (!$exemptmasters)) &&
(([string first f $attr] == -1) || (!$exemptfriends)) &&
(([string first p $attr] == -1) || (!$exemptparty)) &&
(([string first x $attr] == -1) || (!$exemptfile))} {
# not exempt from weeding
set pass [lindex $User($i) 0]
set ts [lindex $User($i) 2]
if {([string compare $pass "-"] == 0) &&
([string first b $attr] == -1)} {
# no password, bad boy/girl!
if {$weednopw == 1} {
unset User($i) ; incr weeded
puts -nonewline stdout "[format "pwd: %-10s " $i]"
} elseif {([string first o $attr] != -1) && ($weedops == 1)} {
unset User($i) ; incr weeded
puts -nonewline stdout "[format "pwd: %-10s " $i]"
} elseif {([string first m $attr] != -1) && ($weedmasters == 1)} {
unset User($i) ; incr weeded
puts -nonewline stdout "[format "pwd: %-10s " $i]"
}
if {([string first o $attr] != -1) && ($stripops == 1)} {
set nattr {}
for {set x 0} {$x < [string length $attr]} {incr x} {
if {[string index $attr $x] != "o"} {
set nattr [format "%s%s" $nattr [string index $attr $x]]
}
}
if {$nattr == {}} { set nattr "-" }
set User($i) [lreplace $User($i) 1 1 $nattr]
puts -nonewline stdout "[format " -o: %-10s " $i]"
}
if {([string first m $attr] != -1) && ($stripmasters == 1)} {
set nattr {}
for {set x 0} {$x < [string length $attr]} {incr x} {
if {[string index $attr $x] != "m"} {
set nattr [format "%s%s" $nattr [string index $attr $x]]
}
}
if {$nattr == {}} { set nattr "-" }
set User($i) [lreplace $User($i) 1 1 $nattr]
puts -nonewline stdout "[format " -m: %-10s " $i]"
}
}
if {($ts == 0) && ($weedlurkers==1) && ([string first b $attr]==-1) &&
[info exists User($i)]} {
unset User($i) ; incr weeded
puts -nonewline stdout "[format "lrk: %-10s " $i]"
}
if {($ts > 0) && ($maxlast > 0) && ($CURRENT-$ts > $maxlast &&
[info exists User($i)])} {
unset User($i) ; incr weeded
puts -nonewline stdout "[format "exp: %-10s " $i]"
}
}
flush stdout
}
puts stdout "\n"
# now check bans/ignores
foreach i [array names User] {
if {([string range $i 0 1] == "::") || ($i == "*ban")} {
# channel-specific bans!
for {set j 0} {$j < [llength $Hostmask($i)]} {incr j} {
set ban [split [lindex $Hostmask($i) $j] :]
# make sure it's a modern ban:
if {[string range [lindex $ban 2] 0 0] == "+"} {
set lastused [lindex $ban 3]
if {($maxban > 0) && ($CURRENT-$lastused > $maxban)} {
if {$i == "*ban"} {
puts stdout "Expired ban: [lindex $ban 0]"
} {
puts stdout "Expired ban on [string range $i 2 end]: [lindex $ban 0]"
}
set Hostmask($i) [lreplace $Hostmask($i) $j $j]
incr j -1
}
}
}
}
if {$i == "*ignore"} {
for {set j 0} {$j < [llength $Hostmask($i)]} {incr j} {
set ign [split [lindex $Hostmask($i) $j] :]
set lastused [lindex $ign 3]
if {($maxignore > 0) && ($CURRENT-$lastused > $maxignore)} {
puts stdout "Expired ignore: [lindex $ign 0]"
set Hostmask($i) [lreplace $Hostmask($i) $j $j]
incr j -1
}
}
}
}
puts stdout "\nFinished scan."
puts stdout "Original total ($total), new total ([expr $total-$weeded]), zapped ($weeded)"
if {![saveUserFile $filename.weed]} {
puts stderr "* Couldn't save new userfile!\n"
exit
}
puts stdout "Wrote $filename.weed"