X-Git-Url: https://git.distorted.org.uk/~mdw/ircbot/blobdiff_plain/a056c4bd5009d73a491aa9336793eeab98e0fe79..11d9bff953ec37d62ab4f6b706da368257b659aa:/bot.tcl

diff --git a/bot.tcl b/bot.tcl
index f171344..b52e139 100755
--- a/bot.tcl
+++ b/bot.tcl
@@ -15,6 +15,29 @@ if {![info exists globalsecret]} {
     unset gsfile
 }
 
+proc try_except_finally {try except finally} {
+    global errorInfo errorCode
+    set er [catch { uplevel 1 $try } emsg]
+    if {$er} {
+	set ei $errorInfo
+	set ec $errorCode
+	if {[catch { uplevel 1 $except } emsg3]} {
+	    append ei "\nALSO ERROR HANDLING ERROR:\n$emsg3"
+	}
+    }
+    set er2 [catch { uplevel 1 $finally } emsg2]
+    if {$er} {
+	if {$er2} {
+	    append ei "\nALSO ERROR CLEANING UP:\n$emsg2"
+	}
+	return -code $er -errorinfo $ei -errorcode $ec $emsg
+    } elseif {$er2} {
+	return -code $er2 -errorinfo $errorInfo -errorcode $errorCode $emsg2
+    } else {
+	return $emsg
+    }
+}
+
 proc sendout {command args} {
     global sock
     if {[llength $args]} {
@@ -402,14 +425,14 @@ proc msg_PRIVMSG {p c dest text} {
 	sendprivmsg $n "error: $rv"
     } else {
 	manyset $rv priv_msgs pub_msgs priv_acts pub_acts
-	foreach {td val} [list $n $priv_msgs $output $pub_msgs] {
+	foreach {td val} [list $n $priv_acts $output $pub_acts] {
 	    foreach l [split $val "\n"] {
-		sendprivmsg $td $l
+		sendaction $td $l
 	    }
 	}
-	foreach {td val} [list $n $priv_acts $output $pub_acts] {
+	foreach {td val} [list $n $priv_msgs $output $pub_msgs] {
 	    foreach l [split $val "\n"] {
-		sendaction $td $l
+		sendprivmsg $td $l
 	    }
 	}
     }
@@ -458,6 +481,11 @@ proc msg_366 {p c args} {
     unset names_chans
 }
 
+proc ta_anymore {} {
+    upvar 1 text text
+    return [expr {!![string length $text]}]
+}
+
 proc ta_nomore {} {
     upvar 1 text text
     if {[string length $text]} { error "too many parameters" }
@@ -486,21 +514,45 @@ proc ucmdr {priv pub args} {
     return -code return [concat [list $priv $pub] $args]
 }
 
-proc ucmd_sendhelp {} {
-    ucmdr \
-{Commands currently understood:
- help              get this list of commands
- seen <nick>       ask after someone (I'll tell them you asked)
- summon <username> invite a logged-on user onto IRC
-Send commands to me by /msg, or say them in channel with ! in front.} {}
-#
-# register          register your nick (you must auth[*] first)
-#[*]auth: /blight in ircII, or /msg blight authuser <username> <pass>
+proc loadhelp {} {
+    global help_topics
+
+    catch { unset help_topics }
+    set f [open helpinfos r]
+    set lno 0
+    while {[gets $f l] >= 0} {
+	incr lno
+	if {[regexp {^#.*} $l]} {
+	} elseif {[regexp {^ *$} $l]} {
+	    if {[info exists topic]} {
+		set help_topics($topic) [join $lines "\n"]
+		unset topic
+		unset lines
+	    }
+	} elseif {[regexp {^!([-+._0-9a-z]*)$} $l dummy newtopic]} {
+	    if {[info exists topic]} { error "help $newtopic while in $topic" }
+	    set topic $newtopic
+	    set lines {}
+	} elseif {[regexp {^[^!#]} $l]} {
+	    set topic
+	    lappend lines [string trimright $l]
+	} else {
+	    error "eh ? $lno: $l"
+	}
+    }
+    if {[info exists topic]} { error "unfinished topic $topic" }
 }
 
-def_ucmd help { ta_nomore; ucmd_sendhelp }
+def_ucmd help {
+    upvar #0 help_topics([irctolower [string trim $text]]) info
+    if {![info exists info]} { ucmdr "No help on $text, sorry." {} }
+    ucmdr $info {}
+}
 
-def_ucmd ? { ta_nomore; ucmd_sendhelp }
+def_ucmd ? {
+    global help_topics
+    ucmdr $help_topics() {}
+}
 
 proc manyset {list args} {
     foreach val $list var $args {
@@ -509,14 +561,222 @@ proc manyset {list args} {
     }
 }
 
-def_ucmd summon {
-    set target [ta_word]
-    ta_nomore
+proc check_username {target} {
     if {
 	[string length $target] > 8 ||
         [regexp {[^-0-9a-z]} $target] ||
         ![regexp {^[a-z]} $target]
     } { error "invalid username" }
+}
+
+proc nickdb__head {} {
+    uplevel 1 {
+	set nl [irctolower $n]
+	upvar #0 nickdb($nl) ndbe
+	binary scan $nl H* nh
+	set nfn users/$nh
+	if {![info exists ndbe] && [file exists $nfn]} {
+	    set f [file open $nfn r]
+	    try_except_finally { set newval [read $f] } {} { close $f }
+	    if {[llength $newval] % 2} { error "invalid length" }
+	    set ndbe $newval
+	}
+    }
+}
+
+proc def_nickdb {name arglist body} {
+    proc nickdb_$name $arglist "nickdb__head; $body"
+}
+
+def_nickdb exists {n} {
+    return [info exists ndbe]
+}
+
+def_nickdb delete {n} {
+    catch { unset ndbe }
+    file delete $nfn
+}
+
+set default_settings {timeformat ks}
+
+def_nickdb set {n args} {
+    global default_settings
+    if {![info exists ndbe]} { set ndbe $default_settings }
+    foreach {key value} [concat $ndbe $args] { set a($key) $value }
+    set newval {}
+    foreach {key value} [array get a] { lappend newval $key $value }
+    set f [open $nfn.new w]
+    try_except_finally {
+	puts $f $newval
+	close $f
+	file rename -force $nfn.new $nfn
+    } {
+	catch { close $f }
+    } {
+    }
+    set ndbe $newval
+}
+
+def_nickdb opt {n key} {
+    global default_settings
+    if {[info exists ndbe]} {
+	set l $ndbe
+    } else {
+	set l $default_settings
+    }
+    foreach {tkey value} $l {
+	if {"$tkey" == "$key"} { return $value }
+    }
+    error "unset setting $key"
+}
+
+proc check_notonchan {} {
+    upvar 1 dest dest
+    if {[ischan $dest]} { error "that command must be sent privately" }
+}
+
+proc nick_securitycheck {strict} {
+    upvar 1 n n
+    if {![nickdb_exists $n]} { error "you are unknown to me, use `register'." }
+    set wantu [nickdb_opt $n username]
+    if {![string length $wantu]} {
+	if {$strict} {
+	    error "that feature is only available to secure users, sorry."
+	} else {
+	    return
+	}
+    }
+    upvar #0 nick_username($n) nu
+    if {![info exists nu]} {
+	error "nick $n is secure, you must identify yourself first."
+    }
+    if {"$wantu" != "$nu"} {
+	error "you are the wrong user - the nick $n belongs to $wantu, not $nu"
+    }
+}
+
+def_ucmd register {
+    prefix_nick
+    check_notonchan
+    set old [nickdb_exists $n]
+    if {$old} { nick_securitycheck 0 }
+    switch -exact [string tolower [string trim $text]] {
+	{} {
+	    upvar #0 nick_username($n) nu
+	    if {![info exists nu]} {
+		ucmdr {} \
+ "You must identify yourself before using `register'.  See `help identify'."
+	    }
+	    nickdb_set $n username $nu
+	    ucmdr {} {} "makes a note of your username." {}
+	}
+	delete {
+	    nickdb_delete $n
+	    ucmdr {} {} "forgets your nickname." {}
+	}
+	insecure {
+	    nickdb_set $n username {}
+	    if {$old} {
+		ucmdr {} "Security is now disabled for your nickname !"
+	    } else {
+		ucmdr {} "This is fine, but bear in mind that people will be able to mess with your settings.  Channel management features need a secure registration." "makes an insecure registration for your nick."
+	    }
+	}
+    }
+}
+
+proc timeformat_desc {tf} {
+    switch -exact $tf {
+	ks { return "Times will be displayed in kiloseconds or seconds." }
+	hms { return "Times will be displayed in hours, minutes, etc." }
+	default { error "invalid timeformat: $v" }
+    }
+}
+
+proc def_setting {opt show_body set_body} {
+    proc set_show/$opt {} "
+        upvar 1 n n
+        set opt $opt
+        $show_body"
+    if {![string length $set_body]} return
+    proc set_set/$opt {} "
+        upvar 1 n n
+        upvar 1 text text
+        set opt $opt
+        $set_body"
+}
+
+def_setting timeformat {
+    set tf [nickdb_opt $n timeformat]
+    return "$tf: [timeformat_desc $tf]"
+} {
+    set tf [string tolower [ta_word]]
+    ta_nomore
+    set desc [timeformat_desc $tf]
+    nickdb_set $n timeformat $tf
+    ucmdr {} $desc
+}
+
+def_setting security {
+    set s [nickdb_opt $n username]
+    if {[string length $s]} {
+	return "Your nick, $n, is controlled by the user $s."
+    } else {
+	return "Your nick, $n, is not secure."
+    }
+} {}
+
+def_ucmd set {
+    prefix_nick
+    check_notonchan
+    if {![nickdb_exists $n]} {
+	ucmdr {} "You are unknown to me and so have no settings."
+    }
+    if {![ta_anymore]} {
+	set ol {}
+	foreach proc [lsort [info procs]] {
+	    if {![regexp {^set_show/(.*)$} $proc dummy opt]} continue
+	    lappend ol [format "%-10s %s" $opt [set_show/$opt]]
+	}
+	ucmdr {} [join $ol "\n"]
+    } else {
+	set opt [ta_word]
+	if {[catch { info body set_show/$opt }]} {
+	    error "no setting $opt"
+	}
+	if {![ta_anymore]} {
+	    ucmdr {} "$opt [set_show/$opt]"
+	} else {
+	    if {[catch { info body set_set/$opt }]} {
+		error "setting $opt cannot be set with `set'"
+	    }
+	    set_set/$opt
+	}
+    }
+}
+
+def_ucmd identpass {
+    set username [ta_word]
+    set passmd5 [md5sum [ta_word]]
+    ta_nomore
+    prefix_nick
+    check_notonchan
+    upvar #0 nick_onchans($n) onchans
+    if {![info exists onchans] || ![llength $onchans]} {
+	ucmdr "You must be on a channel with me to identify yourself." {}
+    }
+    check_username $username
+    exec userv --timeout 3 $username << "$passmd5\n" > /dev/null \
+	    irc-identpass $n
+    upvar #0 nick_username($n) rec_username
+    set rec_username $username
+    ucmdr "Pleased to see you, $username." {}
+}
+
+def_ucmd summon {
+    set target [ta_word]
+    ta_nomore
+    check_username $target
     prefix_nick
 
     upvar #0 lastsummon($target) ls
@@ -597,6 +857,8 @@ if {![info exists sock]} {
     fileevent $sock readable onread
 }
 
+loadhelp
+
 #if {![regexp {tclsh} $argv0]} {
 #    vwait terminate
 #}