commit 7516daff37ce9bc9c9cf5c7502e45fb751fdf484
Author: anon <anon@anon.anon>
Date:   Thu May 16 01:07:31 2024 +0200

    init

diff --git a/main.tcl b/main.tcl
new file mode 100755
index 0000000..134b449
--- /dev/null
+++ b/main.tcl
@@ -0,0 +1,89 @@
+#!/usr/bin/tclsh
+package require http
+package require Tk
+
+set top "XKic"
+
+proc charArtimetric {char operator} {
+    set asciiValue [scan $char %c]
+    if {$operator == "+"} {
+        if {$asciiValue == "z"} { return [list "A" 1] }
+        if {$asciiValue == "Z"} { return [list "a" 1] }
+    }
+    if {$operator == "-"} {
+        if {$asciiValue == "a"} { return [list "Z" 1] }
+        if {$asciiValue == "A"} { return [list "z" 1] }
+    }
+    return [list [format %c [expr $asciiValue $operator 1]] 0]
+}
+
+proc stringArtimetric {str operator n} {
+    set rReverse ""
+    for {set carry 0; set i [expr [string length $str] - 1]} {$i >= 0} {incr i -1} {
+        set c [string index $str $i]
+        for {set h 0} {$h < [expr 1 + $carry]} {incr h} {
+            set rc [charArtimetric $c $operator]
+            set c [lindex $rc 0]
+        }
+        append rReverse $c
+        if [lindex $rc 1] {
+            set $carry 1
+        } else {
+            for {set h [expr $i - 1]} {$h >= 0} {incr h -1} {
+                append rReverse [string index $str $h]
+            }
+            break
+        }
+    }
+    set r [string reverse $rReverse]
+    return $r
+}
+
+proc get0x0page {page} {
+    set baseUrl "http://0x0.st/"
+    set extensionList [list ".txt" ".log"]
+
+    .output delete 1.0 end
+
+    foreach extension $extensionList {
+        set url ""
+        append url $baseUrl $page $extension
+
+        .controls.url configure -text $url
+        set response [http::geturl $url]
+
+        if {[http::ncode $response] == 200} {
+            .output insert end [http::data $response]
+            return
+        }
+    }
+
+    .output insert end "**Missing page**"
+}
+
+proc previous {} {
+    set ::top [stringArtimetric $::top - 1]
+    get0x0page $::top
+}
+
+proc next {} {
+    set ::top [stringArtimetric $::top + 1]
+    get0x0page $::top
+}
+
+wm title . "0x0.st peeper"
+
+text .output
+pack .output -expand 1 -fill both
+
+frame .controls
+pack .controls -side bottom
+button .controls.previous -text "Previous" -command previous
+button .controls.next     -text "Next"     -command next
+label .controls.url
+pack .controls.previous -side left
+pack .controls.next -side left
+pack .controls.url -side right
+
+
+get0x0page $::top