new

server/WebHandler.py

@@ -0,0 +1,275 @@
+#!/usr/bin/python
+
+from change_password import change_password #@UnusedImport
+from db_helper import Db, getAuthTuple
+from hscException import HscException
+from loader_personal_statistics import loader_personal_statistics #@UnusedImport
+from logger import Logger
+from mandant import add_mandant, loader_change_mandant, change_mandant, change_mandant2, delete_really #@UnusedImport
+from params import Params
+from person import person #@UnusedImport
+from session import Session, SessionContainer
+
+import BaseHTTPServer
+import Cheetah.Template
+import Cookie
+import SocketServer
+import StringIO
+import cgi
+import getopt
+import os
+
+
+import sys
+import uuid
+
+
+
+
+
+
+
+pidfile_name = "/tmp/hsc.pid"
+foreGround = False
+templateDir = "./templates"
+port = 8000
+DSN = "host=127.0.0.1 dbname=radius user=webapp password=webapp123"
+
+
+
+
+
+class HscWebApp(object):
+        def __init__(self, sid):
+                self.buf = StringIO.StringIO()
+                self.params = None
+                self.session = sessionContainer.get(sid)
+                self.error_msg = None
+                self.msg = None
+                self.sid = sid
+
+        def finish(self):
+                pass
+
+        def log(self, msg):
+                Logger.log(msg)
+
+        def setParams(self, p):
+                self.params = p
+
+        def showPage(self, forcePage=''):
+                if self.session:
+                        if forcePage != '':
+                                page = forcePage
+                        else:
+                                page = self.session.redirectTarget
+                else:
+                        page = 'login'
+
+                if page == 'logout':
+                        sessionContainer.delete(self.sid)
+                        self.session = None
+                        page = 'login'
+                
+                templateFile = page + '.tmpl'
+
+                try:
+                        if self.session:
+                                self.log("showPage, session: %s" % str(self.session))
+                                self.log("showPage, params:  %s" % str(self.session.params))
+                                self.session.setShownPage(page)
+                                
+                                try:
+                                        loaderObjectClass = eval("loader_" + page)
+                                        loaderObject = loaderObjectClass(self.session)
+                                        loaderObject.mergeAdditionalData()
+                                except NameError, e:
+                                        self.log("loader class for %s not found: %s" % (page, str(e)))
+                                except HscException, e:
+                                        s = "HSC Failure loading data: %s" % str(e)
+                                        self.log(s)
+                                        raise Exception(s)
+
+                        tmpl = Cheetah.Template.Template(file=templateDir + '/' + templateFile,
+                                                         searchList=[self])
+                        #self.log("OUTPUT: %s" % str(tmpl))
+                        self.buf.write(str(tmpl))
+
+                        if self.session:
+                                self.session.clearMsgs()
+                except Exception, e:
+                        sessionContainer.delete(self.sid)
+                        self.buf.write("Problems to show this page: %s %s" % (e.__class__.__name__, str(e)))
+                finally:
+                        pass
+
+
+
+        def processAction(self):
+            if self.params.action == "Login":
+                authTuple = getAuthTuple(self.params.username, self.params.password)
+                if authTuple:
+                    self.params = Params({})
+                    self.sid = str(uuid.uuid1())
+                    session = Session(self.sid, self.params)
+
+                    session.setAuthTuple(authTuple)
+                    session.setGoodMsg("Welcome")
+                    session.setRedirectTarget("menu")
+                    sessionContainer.add(session)
+                else:
+                    self.sid = 0
+            else:
+                if self.session == None:
+                    self.sid = 0
+                else:
+                    shownPage = self.session.getShownPage()
+                    self.session.setParams(self.params)
+                    self.log("shownPage: %s" % shownPage)
+                    try:
+                        dataObjectClass = eval(shownPage)
+                        dataObject = dataObjectClass(self.session)
+                        dataObject.process()
+                        self.session.setGoodMsg("Action on %s performed successfully" % shownPage)
+                        self.session.setRedirectTarget(dataObject.getNextPage())
+                    except NameError, e:
+                        self.log("processAction, NameError PARAMS: %s" % str(self.session.params))
+                        s = "Internal program error: %s" % str(e)
+                        self.session.setBadMsg(s)
+                        self.log(s)
+                        self.session.setRedirectTarget("menu")
+                    except HscException, e:
+                        self.log("processAction, HscException PARAMS: %s" % str(self.session.params))
+                        s = "HSC Failure: %s" % str(e)
+                        self.session.setBadMsg(s)
+                        self.log(s)
+                        self.session.setRedirectTarget(shownPage)     
+                    
+
+        def __str__(self):
+                return self.buf.getvalue()
+
+
+class MyHandler(BaseHTTPServer.BaseHTTPRequestHandler):
+    server_version = "MyHscWebAppHTTP/1.0"
+
+    def log_message(self, format, *args):
+        Logger.log(format%args)
+
+    def getSidFromCookie(self):
+        try:
+            cookie = Cookie.SimpleCookie(self.headers.get('Cookie'))
+            sid = cookie['sid'].value
+        except KeyError:
+            sid = None
+        return sid
+
+    def setSidInCookie(self, sid):
+        cookie = Cookie.SimpleCookie()
+        cookie['sid'] = sid
+        cookie['sid']['Max-Age'] = 10*60
+        self.wfile.write(str(cookie) + '\r\n')
+
+
+
+    def do_POST(self):
+        self.log_message("Request: %s", self.path)
+        sid = self.getSidFromCookie()
+        self.log_message("Cookie: %s" % self.headers.get('Cookie'))
+
+        d = HscWebApp(sid)
+
+        l = int(self.headers.get('Content-Length', '0'))
+        q = self.rfile.read(l)
+        e = cgi.parse_qs(q)
+        self.log_message("QUERY: %s" % str(e))
+        d.setParams(Params(e))
+
+        d.processAction()
+
+        self.send_response(303, "See Other")
+        self.setSidInCookie(d.sid)
+        self.send_header("Location", "/")
+        self.end_headers()
+
+        d.finish()
+
+    def do_GET(self):
+        self.log_message("Request: %s", self.path)
+        sid = self.getSidFromCookie()
+        self.log_message("SID: %s" % sid)
+
+        d = HscWebApp(sid)
+
+        d.showPage(self.path.split('/')[1])
+
+        self.send_response(200, "OK")
+
+        self.send_header("Content-Type", "text/html")
+        self.end_headers()
+        self.wfile.write(str(d))
+
+        d.finish()
+        
+
+
+class MyServer(SocketServer.ThreadingTCPServer):
+    def __init__(self, server_address, RequestHandlerClass):
+        self.allow_reuse_address = True
+        SocketServer.ThreadingTCPServer.__init__(self, server_address, RequestHandlerClass)
+
+
+
+
+
+def usage():
+    print "Usage"
+
+
+
+Logger.openlog()
+
+try:
+    opts, args = getopt.getopt(sys.argv[1:], "hp:dFD:", ["help", "port=", "debug" "ForeGround", "DSN="])
+except getopt.GetoptError:
+    usage()
+    sys.exit(2)
+
+
+for o, a in opts:
+    if o in ("-h", "--help"):
+        usage()
+        sys.exit()
+    if o in ("-F", "--ForeGround"):
+        foreGround = True
+    if o in ("-p", "--port"):
+        port = int(a)
+    if o in ("-d", "--debug"):
+        foreGround = True
+        Logger.debugEnable()
+    if o in ("-D", "--DSN"):
+        DSN=a
+
+    Db.setDSN(DSN)
+
+if foreGround:
+    pid = 0
+else:
+    pid = os.fork()
+
+
+if pid:
+    pidFile = file(pidfile_name, mode='w')
+    pidFile.write("%i\n" % pid)
+    pidFile.close()
+    print "daemon started with pid ", pid
+    sys.exit(0)
+else:
+    Logger.log("Daemon started")
+
+sessionContainer = SessionContainer(60, 600)
+sessionContainer.setDaemon(True)
+sessionContainer.start()
+
+MyServer(('', port), MyHandler).serve_forever()
+

server/a.ps

@@ -0,0 +1,914 @@
+%!PS-Adobe-3.0
+%%Title: yadyn
+%%For: Wolfgang Hottgenroth
+%%Creator: a2ps version 4.13
+%%CreationDate: Sat Nov 10 10:08:03 2007
+%%BoundingBox: 24 24 588 768
+%%DocumentData: Clean7Bit
+%%Orientation: Landscape
+%%Pages: 1
+%%PageOrder: Ascend
+%%DocumentMedia: Letter 612 792 0 () ()
+%%DocumentNeededResources: font Courier
+%%+ font Courier-Bold
+%%+ font Courier-BoldOblique
+%%+ font Courier-Oblique
+%%+ font Helvetica
+%%+ font Helvetica-Bold
+%%+ font Symbol
+%%+ font Times-Bold
+%%+ font Times-Roman
+%%DocumentProcessColors: Black 
+%%DocumentSuppliedResources: procset a2ps-a2ps-hdr
+%%+ procset a2ps-black+white-Prolog
+%%+ encoding ISO-8859-1Encoding
+%%EndComments
+/a2psdict 200 dict def
+a2psdict begin
+%%BeginProlog
+%%Copyright: (c) 1988, 89, 90, 91, 92, 93 Miguel Santana
+%%Copyright: (c) 1995, 96, 97, 98 Akim Demaille, Miguel Santana
+% Check PostScript language level.
+/languagelevel where {
+  pop /gs_languagelevel languagelevel def
+} {
+  /gs_languagelevel 1 def
+} ifelse
+
+% EPSF import as in the Red Book
+/BeginInclude {
+  /b4_Inc_state save def    		% Save state for cleanup
+  /dict_count countdictstack def	% Count objects on dict stack
+  /op_count count 1 sub def		% Count objects on operand stack 
+  userdict begin
+    0 setgray 0 setlinecap
+    1 setlinewidth 0 setlinejoin
+    10 setmiterlimit [ ] 0 setdash newpath
+    gs_languagelevel 1 ne {
+      false setstrokeadjust false setoverprint 
+    } if
+} bind def
+
+/EndInclude {
+  count op_count sub { pos } repeat	% Clean up stacks
+  countdictstack dict_count sub { end } repeat
+  b4_Inc_state restore
+} bind def
+
+/BeginEPSF {
+  BeginInclude
+  /showpage { } def
+} bind def
+
+/EndEPSF {
+  EndInclude
+} bind def
+
+% Page prefeed
+/page_prefeed {         % bool -> -
+  statusdict /prefeed known {
+    statusdict exch /prefeed exch put
+  } {
+    pop
+  } ifelse
+} bind def
+
+/deffont {
+  findfont exch scalefont def
+} bind def
+
+/reencode_font {
+  findfont reencode 2 copy definefont pop def
+} bind def
+
+% Function c-show (str => -)
+% centers text only according to x axis.
+/c-show { 
+  dup stringwidth pop
+  2 div neg 0 rmoveto
+  show
+} bind def
+
+% Function l-show (str => -)
+% prints texts so that it ends at currentpoint
+/l-show {
+  dup stringwidth pop neg 
+  0 
+  rmoveto show
+} bind def
+
+% center-fit show (str w => -)
+% show centered, and scale currentfont so that the width is less than w
+/cfshow {
+  exch dup stringwidth pop
+  % If the title is too big, try to make it smaller
+  3 2 roll 2 copy
+  gt
+  { % if, i.e. too big
+    exch div
+    currentfont exch scalefont setfont
+  } { % ifelse
+    pop pop 
+  }
+  ifelse
+  c-show			% center title
+} bind def
+
+% Return the y size of the current font
+% - => fontsize
+/currentfontsize {
+  currentfont /FontMatrix get 3 get 1000 mul
+} bind def
+
+% reencode the font
+% <encoding-vector> <fontdict> -> <newfontdict>
+/reencode
+{
+   dup length 5 add dict begin
+     { % <vector> <key> <val>
+       1 index /FID ne
+       { def }{ pop pop } ifelse
+     } forall
+     /Encoding exch def % -
+
+     % Use the font's bounding box to determine the ascent, descent,
+     % and overall height; don't forget that these values have to be
+     % transformed using the font's matrix. We use `load' because sometimes
+     % BBox is executable, sometimes not. Since we need 4 numbers an not 
+     % an array avoid BBox from being executed
+     /FontBBox load aload pop
+     FontMatrix transform /Ascent exch def pop
+     FontMatrix transform /Descent exch def pop
+     /FontHeight Ascent Descent sub def
+
+     % Get the underline position and thickness if they're defined.
+     % Use 1 if they are not defined.
+     currentdict /FontInfo 2 copy known
+     { get
+       /UnderlinePosition 2 copy  % <FontInfo> /UP <FontInfo> /UP
+       2 copy known
+       { get }{ pop pop 1} ifelse
+       0 exch FontMatrix transform exch pop
+       def           % <FontInfo>
+
+       /UnderlineThickness 2 copy  % <FontInfo> /UT <FontInfo> /UT
+       2 copy known
+       { get }{ pop pop 1} ifelse
+       0 exch FontMatrix transform exch pop
+       def           % <FontInfo>
+       pop           % -
+     }{ pop pop
+     } ifelse
+
+     currentdict
+     end
+} bind def
+
+% Function print line number (<string> # -)
+/# {
+  gsave
+    sx cw mul neg 2 div 0 rmoveto
+    f# setfont
+    c-show
+  grestore
+} bind def
+
+% -------- Some routines to enlight plain b/w printings ---------
+
+% Underline
+% width --
+/dounderline {
+  currentpoint
+  gsave
+    moveto
+    0 currentfont /Descent get currentfontsize mul rmoveto
+    0 rlineto
+    stroke
+  grestore
+} bind def
+
+% Underline a string
+% string --
+/dounderlinestring {
+  stringwidth pop
+  dounderline
+} bind def
+
+/UL {
+  /ul exch store
+} bind def
+
+% Draw a box of WIDTH wrt current font
+% width --
+/dobox {
+  currentpoint
+  gsave
+    newpath
+    moveto
+    0 currentfont /Descent get currentfontsize mul rmoveto
+    dup 0 rlineto
+    0 currentfont /FontHeight get currentfontsize mul rlineto
+    neg 0 rlineto
+    closepath
+    stroke
+  grestore
+} bind def
+
+/BX {
+  /bx exch store
+} bind def
+
+% Box a string
+% string --
+/doboxstring {
+  stringwidth pop
+  dobox
+} bind def
+
+%
+% ------------- Color routines ---------------
+%
+/FG /setrgbcolor load def
+
+% Draw the background
+% width --
+/dobackground {
+  currentpoint
+  gsave
+    newpath
+    moveto
+    0 currentfont /Descent get currentfontsize mul rmoveto
+    dup 0 rlineto
+    0 currentfont /FontHeight get currentfontsize mul rlineto
+    neg 0 rlineto
+    closepath
+    bgcolor aload pop setrgbcolor
+    fill
+  grestore
+} bind def
+
+% Draw bg for a string
+% string --
+/dobackgroundstring {
+  stringwidth pop
+  dobackground
+} bind def
+
+
+/BG {
+  dup /bg exch store
+  { mark 4 1 roll ] /bgcolor exch store } if
+} bind def
+
+
+/Show {
+  bg { dup dobackgroundstring } if
+  ul { dup dounderlinestring } if
+  bx { dup doboxstring } if
+  show
+} bind def
+
+% Function T(ab), jumps to the n-th tabulation in the current line
+/T {
+  cw mul x0 add
+  bg { dup currentpoint pop sub dobackground } if
+  ul { dup currentpoint pop sub dounderline } if
+  bx { dup currentpoint pop sub dobox } if
+  y0 moveto
+} bind def
+
+% Function n: move to the next line
+/n {
+  /y0 y0 bfs sub store
+  x0 y0 moveto
+} bind def
+
+% Function N: show and move to the next line
+/N {
+  Show
+  /y0 y0 bfs sub store
+  x0 y0 moveto
+} bind def
+
+/S {
+  Show
+} bind def
+
+%%BeginResource: procset a2ps-a2ps-hdr 2.0 2
+%%Copyright: (c) 1988, 89, 90, 91, 92, 93 Miguel Santana
+%%Copyright: (c) 1995, 96, 97, 98 Akim Demaille, Miguel Santana
+% Function title: prints page header.
+% <ct> <rt> <lt> are passed as argument
+/title { 
+  % 1. Draw the background
+  x v get y v get moveto
+  gsave
+    0 th 2 div neg rmoveto 
+    th setlinewidth
+    0.95 setgray
+    pw 0 rlineto stroke
+  grestore
+  % 2. Border it
+  gsave
+    0.7 setlinewidth
+    pw 0 rlineto
+    0 th neg rlineto
+    pw neg 0 rlineto
+    closepath stroke
+  grestore
+  % stk: ct rt lt
+  x v get y v get th sub 1 add moveto
+%%IncludeResource: font Helvetica
+  fHelvetica fnfs 0.8 mul scalefont setfont
+  % 3. The left title
+  gsave
+    dup stringwidth pop fnfs 0.8 mul add exch % leave space took on stack
+    fnfs 0.8 mul hm rmoveto
+    show			% left title
+  grestore
+  exch
+  % stk: ct ltw rt
+  % 4. the right title
+  gsave
+    dup stringwidth pop fnfs 0.8 mul add exch % leave space took on stack
+    dup
+    pw exch stringwidth pop fnfs 0.8 mul add sub
+    hm
+    rmoveto
+    show			% right title
+  grestore
+  % stk: ct ltw rtw
+  % 5. the center title
+  gsave
+    pw 3 1 roll
+    % stk: ct pw ltw rtw
+    3 copy 
+    % Move to the center of the left room
+    sub add 2 div hm rmoveto
+    % What is the available space in here?
+    add sub fnfs 0.8 mul sub fnfs 0.8 mul sub
+    % stk: ct space_left
+%%IncludeResource: font Helvetica-Bold
+  fHelvetica-Bold fnfs scalefont setfont
+    cfshow
+  grestore
+} bind def
+
+% Function border: prints virtual page border
+/border { %def
+  gsave				% print four sides
+    0 setgray
+    x v get y v get moveto
+    0.7 setlinewidth		% of the square
+    pw 0 rlineto
+    0 ph neg rlineto
+    pw neg 0 rlineto
+    closepath stroke
+  grestore
+} bind def
+
+% Function water: prints a water mark in background
+/water { %def
+  gsave
+    scx scy moveto rotate
+%%IncludeResource: font Times-Bold
+  fTimes-Bold 100 scalefont setfont
+    .97 setgray
+    dup stringwidth pop 2 div neg -50 rmoveto
+    show
+  grestore
+} bind def
+
+% Function rhead: prints the right header
+/rhead {  %def
+  lx ly moveto
+  fHelvetica fnfs 0.8 mul scalefont setfont
+  l-show
+} bind def
+
+% Function footer (cf rf lf -> -)
+/footer {
+  fHelvetica fnfs 0.8 mul scalefont setfont
+  dx dy moveto
+  show
+
+  snx sny moveto
+  l-show
+  
+  fnx fny moveto
+  c-show
+} bind def
+%%EndResource
+%%BeginResource: procset a2ps-black+white-Prolog 2.0 1
+
+% Function T(ab), jumps to the n-th tabulation in the current line
+/T { 
+  cw mul x0 add y0 moveto
+} bind def
+
+% Function n: move to the next line
+/n { %def
+  /y0 y0 bfs sub store
+  x0 y0 moveto
+} bind def
+
+% Function N: show and move to the next line
+/N {
+  Show
+  /y0 y0 bfs sub store
+  x0 y0 moveto
+}  bind def
+
+/S {
+  Show
+} bind def
+
+/p {
+  false UL
+  false BX
+  fCourier bfs scalefont setfont
+  Show
+} bind def
+
+/sy {
+  false UL
+  false BX
+  fSymbol bfs scalefont setfont
+  Show
+} bind def
+
+/k {
+  false UL
+  false BX
+  fCourier-Oblique bfs scalefont setfont
+  Show
+} bind def
+
+/K {
+  false UL
+  false BX
+  fCourier-Bold bfs scalefont setfont
+  Show
+} bind def
+
+/c {
+  false UL
+  false BX
+  fCourier-Oblique bfs scalefont setfont
+  Show
+} bind def
+
+/C {
+  false UL
+  false BX
+  fCourier-BoldOblique bfs scalefont setfont
+  Show 
+} bind def
+
+/l {
+  false UL
+  false BX
+  fHelvetica bfs scalefont setfont
+  Show
+} bind def
+
+/L {
+  false UL
+  false BX
+  fHelvetica-Bold bfs scalefont setfont
+  Show 
+} bind def
+
+/str{
+  false UL
+  false BX
+  fTimes-Roman bfs scalefont setfont
+  Show
+} bind def
+
+/e{
+  false UL
+  true BX
+  fHelvetica-Bold bfs scalefont setfont
+  Show
+} bind def
+
+%%EndResource
+%%EndProlog
+%%BeginSetup
+%%IncludeResource: font Courier
+%%IncludeResource: font Courier-Oblique
+%%IncludeResource: font Courier-Bold
+%%IncludeResource: font Times-Roman
+%%IncludeResource: font Symbol
+%%IncludeResource: font Courier-BoldOblique
+%%BeginResource: encoding ISO-8859-1Encoding
+/ISO-8859-1Encoding [
+/.notdef /.notdef /.notdef /.notdef /.notdef /.notdef /.notdef /.notdef 
+/.notdef /.notdef /.notdef /.notdef /.notdef /.notdef /.notdef /.notdef 
+/.notdef /.notdef /.notdef /.notdef /.notdef /.notdef /.notdef /.notdef 
+/.notdef /.notdef /.notdef /.notdef /.notdef /.notdef /.notdef /.notdef 
+/space /exclam /quotedbl /numbersign /dollar /percent /ampersand /quoteright 
+/parenleft /parenright /asterisk /plus /comma /minus /period /slash 
+/zero /one /two /three /four /five /six /seven 
+/eight /nine /colon /semicolon /less /equal /greater /question 
+/at /A /B /C /D /E /F /G 
+/H /I /J /K /L /M /N /O 
+/P /Q /R /S /T /U /V /W 
+/X /Y /Z /bracketleft /backslash /bracketright /asciicircum /underscore 
+/quoteleft /a /b /c /d /e /f /g 
+/h /i /j /k /l /m /n /o 
+/p /q /r /s /t /u /v /w 
+/x /y /z /braceleft /bar /braceright /asciitilde /.notdef 
+/.notdef /.notdef /.notdef /.notdef /.notdef /.notdef /.notdef /.notdef 
+/.notdef /.notdef /.notdef /.notdef /.notdef /.notdef /.notdef /.notdef 
+/.notdef /.notdef /.notdef /.notdef /.notdef /.notdef /.notdef /.notdef 
+/.notdef /.notdef /.notdef /.notdef /.notdef /.notdef /.notdef /.notdef 
+/space /exclamdown /cent /sterling /currency /yen /brokenbar /section 
+/dieresis /copyright /ordfeminine /guillemotleft /logicalnot /hyphen /registered /macron 
+/degree /plusminus /twosuperior /threesuperior /acute /mu /paragraph /bullet 
+/cedilla /onesuperior /ordmasculine /guillemotright /onequarter /onehalf /threequarters /questiondown 
+/Agrave /Aacute /Acircumflex /Atilde /Adieresis /Aring /AE /Ccedilla 
+/Egrave /Eacute /Ecircumflex /Edieresis /Igrave /Iacute /Icircumflex /Idieresis 
+/Eth /Ntilde /Ograve /Oacute /Ocircumflex /Otilde /Odieresis /multiply 
+/Oslash /Ugrave /Uacute /Ucircumflex /Udieresis /Yacute /Thorn /germandbls 
+/agrave /aacute /acircumflex /atilde /adieresis /aring /ae /ccedilla 
+/egrave /eacute /ecircumflex /edieresis /igrave /iacute /icircumflex /idieresis 
+/eth /ntilde /ograve /oacute /ocircumflex /otilde /odieresis /divide 
+/oslash /ugrave /uacute /ucircumflex /udieresis /yacute /thorn /ydieresis 
+] def
+%%EndResource
+% Initialize page description variables.
+/sh 612 def
+/sw 792 def
+/llx 24 def
+/urx 768 def
+/ury 588 def
+/lly 24 def
+/#copies 1 def
+/th 15.000000 def
+/fnfs 11 def
+/bfs 6.000000 def
+/cw 3.600000 def
+
+% Dictionary for ISO-8859-1 support
+/iso1dict 8 dict begin
+  /fCourier ISO-8859-1Encoding /Courier reencode_font
+  /fCourier-Bold ISO-8859-1Encoding /Courier-Bold reencode_font
+  /fCourier-BoldOblique ISO-8859-1Encoding /Courier-BoldOblique reencode_font
+  /fCourier-Oblique ISO-8859-1Encoding /Courier-Oblique reencode_font
+  /fHelvetica ISO-8859-1Encoding /Helvetica reencode_font
+  /fHelvetica-Bold ISO-8859-1Encoding /Helvetica-Bold reencode_font
+  /fTimes-Bold ISO-8859-1Encoding /Times-Bold reencode_font
+  /fTimes-Roman ISO-8859-1Encoding /Times-Roman reencode_font
+currentdict end def
+/bgcolor [ 0 0 0 ] def
+/bg false def
+/ul false def
+/bx false def
+% The font for line numbering
+/f# /Helvetica findfont bfs .6 mul scalefont def
+/fSymbol /Symbol findfont def
+/hm fnfs 0.25 mul def
+/pw
+   cw 101.400000 mul
+def
+/ph
+   520.200000 th add
+def
+/pmw urx llx sub pw 2 mul sub 1 div def
+/pmh 0 def
+/v 0 def
+/x [
+  0
+  dup pmw add pw add
+] def
+/y [
+  pmh ph add 0 mul ph add
+  dup
+] def
+/scx sw 2 div def
+/scy sh 2 div def
+/snx urx def
+/sny lly 2 add def
+/dx llx def
+/dy sny def
+/fnx scx def
+/fny dy def
+/lx snx def
+/ly ury fnfs 0.8 mul sub def
+/sx 0 def
+/tab 8 def
+/x0 0 def
+/y0 0 def
+%%EndSetup
+
+%%Page: (1-2) 1
+%%BeginPageSetup
+/pagesave save def
+sh 0 translate 90 rotate
+%%EndPageSetup
+iso1dict begin
+gsave
+llx lly 12 add translate
+/v 0 store
+/x0 x v get 2.520000 add sx cw mul add store
+/y0 y v get bfs th add sub store
+x0 y0 moveto
+(#!/usr/bin/python) c n
+() p n
+(import) K
+( socket) p n
+(import) K
+( Queue) p n
+(import) K
+( threading) p n
+(import) K
+( md5) p n
+(import) K
+( time) p n
+() N
+(class) K
+( Entry\(object\):) p n
+(    ) S
+(def) K
+( __init__\(self, dynid, sharedSecret, name\):) p n
+(        self.dynid = dynid) N
+(        self.sharedSecret = sharedSecret) N
+(        self.name = name) N
+(        self.lastEventTime = 0) N
+(        self.address = '') N
+() N
+(class) K
+( IllegalEventException\(Exception\):) p n
+(    ) S
+(def) K
+( __init__\(self, msg\):) p n
+(        self.msg = msg) N
+() N
+() N
+(class) K
+( Event\(object\):) p n
+(    ) S
+(def) K
+( __init__\(self, address, data, receiveTime\):) p n
+(        self.address = address) N
+(        self.data = data) N
+(        self.receiveTime = receiveTime) N
+() N
+(    ) S
+(def) K
+( prepare\(self\):) p n
+(        self.port = self.address[1]) N
+(        self.address = self.address[0]) N
+(        \(self.dynid, self.msgTime, self.checksum\) = self.data.split\(') S
+( ) str
+('\)) p n
+(        self.msgTime = int\(self.msgTime\)) N
+(        self.prepared = True) N
+() N
+(    ) S
+(def) K
+( process\(self\):) p n
+(        ) S
+(if) K
+( ) p
+(not) K
+( self.prepared:) p n
+(            self.prepare\(\)) N
+() N
+(        ) S
+(if) K
+( ) p
+(not) K
+( ENTRIES.has_key\(self.dynid\):) p n
+(            ) S
+(raise) K
+( IllegalEventException\(") p
+(unknown dynid in event %s) str
+(" % str\(self\)\)) p n
+(        entry = ENTRIES[self.dynid]) N
+() N
+(        ) S
+(if) K
+( self.msgTime + MSG_TIME_CORRIDOR < self.receiveTime:) p n
+(            ) S
+(raise) K
+( IllegalEventException\(") p
+(event too old %s) str
+(" % str\(self\)\)) p n
+(        ) S
+(if) K
+( self.msgTime - MSG_TIME_CORRIDOR > self.receiveTime:) p n
+(            ) S
+(raise) K
+( IllegalEventException\(") p
+(event too young %s) str
+(" % str\(self\)\)) p n
+() N
+() N
+(        ) S
+(if) K
+( entry.lastEventTime >= self.msgTime:) p n
+(            ) S
+(raise) K
+( IllegalEventException\(") p
+(timing sequence failure in event, possibly replay %s) str
+(" % str\(self\)\)) p n
+() N
+(        di = ") S
+(%s %s %d) str
+(" % \(self.dynid, entry.sharedSecret, self.msgTime\)) p n
+(        d = md5.new\(di\).hexdigest\(\)) N
+(        ) S
+(print) K
+( ") p
+(%s, received: %s, calculated: %s) str
+(" % \(di, self.checksum, d\)) p n
+(        ) S
+(if) K
+( d != self.checksum:) p n
+(            ) S
+(raise) K
+( IllegalEventException\(") p
+(wrong checksum for event %s) str
+(" % str\(self\)\)) p n
+() N
+(        entry.lastEventTime = self.msgTime) N
+() N
+(        ) S
+(if) K
+( entry.address == self.address:) p n
+(            ) S
+(print) K
+( ") p
+(Same address, nothing to do.) str
+(") p n
+(        ) S
+(else) K
+(:) p n
+(            entry.address = self.address) N
+(            ) S
+(print) K
+( ") p
+(Set in DNS: %s -> %s) str
+(" % \(entry.name, entry.address\)) p n
+() N
+() N
+(    ) S
+(def) K
+( __str__\(self\):) p n
+(        ) S
+(if) K
+( ) p
+(not) K
+( self.prepared:) p n
+(            self.prepare\(\)) N
+(        ) S
+(return) K
+( ") p
+(%s from %s:%d) str
+(" % \(self.data, self.address, self.port\)) p n
+() N
+(class) K
+( Handler\(threading.Thread\):) p n
+(    ) S
+(def) K
+( __init__\(self, queue\):) p n
+(        threading.Thread.__init__\(self\)) N
+(        self.q = queue) N
+(        self.setDaemon\(True\)) N
+() N
+(    ) S
+(def) K
+( run\(self\):) p n
+(        ) S
+(while) K
+( True:) p n
+(            event = self.q.get\(\)) N
+(            ) S
+(try) K
+(:) p n
+(                event.prepare\(\)) N
+(                ) S
+(print) K
+( ") p
+(Processing event %s) str
+(" % str\(event\)) p n
+(                event.process\(\)) N
+(            ) S
+(except) K
+( IllegalEventException, e:) p n
+(                ) S
+(print) K
+( ") p
+(Some failure: %s) str
+(" % e.msg) p n
+(yadyn) (Seite 1/2) (Nov 09, 07 13:31) title
+border
+/v 1 store
+/x0 x v get 2.520000 add sx cw mul add store
+/y0 y v get bfs th add sub store
+x0 y0 moveto
+() p n
+(class) K
+( Expirer\(threading.Thread\):) p n
+(    ) S
+(def) K
+( __init__\(self\):) p n
+(        threading.Thread.__init__\(self\)) N
+(        self.setDaemon\(True\)) N
+() N
+(    ) S
+(def) K
+( run\(self\):) p n
+(        ) S
+(while) K
+( True:) p n
+(            ) S
+(print) K
+( ") p
+(Expiring ...) str
+(") p n
+(            currentTime = int\(time.time\(\)\)) N
+(            ) S
+(for) K
+( entry ) p
+(in) K
+( ENTRIES.values\(\):) p n
+(                ) S
+(if) K
+( entry.lastEventTime != 0 ) p
+(and) K
+( entry.lastEventTime + EVENT_LIFE_TIME < currentTime:) p n
+(                    ) S
+(print) K
+( ") p
+(Entry %s expired) str
+(" % entry.dynid) p n
+(                    entry.lastEventTime = 0) N
+(                    entry.address = NULL_ADDRESS) N
+(                    ) S
+(print) K
+( ") p
+(Set in DNS: %s -> %s) str
+(" % \(entry.name, entry.address\)) p n
+(            time.sleep\(10\)) N
+(                                ) N
+() N
+(ENTRIES = {) N
+(    ') S
+(testhost) str
+(': Entry\(') p
+(testhost,) str
+(', ') p
+(test123) str
+(', ') p
+(test.test.de) str
+('\),) p n
+(    }) N
+(MSG_TIME_CORRIDOR = 5) N
+(EVENT_LIFE_TIME = 10) N
+(NULL_ADDRESS = ') S
+(0.0.0.0) str
+(') p n
+() N
+(q = Queue.Queue\(\)) N
+() N
+(handler = Handler\(q\)) N
+(handler.start\(\)) N
+() N
+(expirer = Expirer\(\)) N
+(expirer.start\(\)) N
+() N
+(s = socket.socket\(socket.AF_INET, socket.SOCK_DGRAM\)) N
+(s.bind\(\("", 9090\)\)) N
+() N
+(while) K
+( True:) p n
+(    data, address = s.recvfrom\(256\)) N
+(    ) S
+(try) K
+(:) p n
+(        q.put_nowait\(Event\(address, data, int\(time.time\(\)\)\)\)) N
+(    ) S
+(except) K
+( Queue.Full:) p n
+(        ) S
+(print) K
+( ") p
+(Event %s from %s dropped) str
+(" % \(data, str\(address\)\)) p n
+() N
+(yadyn) (Seite 2/2) (Nov 09, 07 13:31) title
+border
+grestore
+(Gedruckt von Wolfgang Hottgenroth) rhead
+(yadyn) (1/1) (Samstag November 10, 2007) footer
+end % of iso1dict
+pagesave restore
+showpage
+
+%%Trailer
+end
+%%EOF

server/a.ps~

@@ -0,0 +1,937 @@
+%!PS-Adobe-3.0
+%%Title: yadyn
+%%For: Wolfgang Hottgenroth
+%%Creator: a2ps version 4.13
+%%CreationDate: Sat Nov 10 10:07:58 2007
+%%BoundingBox: 24 24 588 768
+%%DocumentData: Clean7Bit
+%%Orientation: Landscape
+%%Pages: 2
+%%PageOrder: Ascend
+%%DocumentMedia: Letter 612 792 0 () ()
+%%DocumentNeededResources: font Courier
+%%+ font Courier-Bold
+%%+ font Courier-BoldOblique
+%%+ font Courier-Oblique
+%%+ font Helvetica
+%%+ font Helvetica-Bold
+%%+ font Symbol
+%%+ font Times-Bold
+%%+ font Times-Roman
+%%DocumentProcessColors: Black 
+%%DocumentSuppliedResources: procset a2ps-a2ps-hdr
+%%+ procset a2ps-black+white-Prolog
+%%+ encoding ISO-8859-1Encoding
+%%EndComments
+/a2psdict 200 dict def
+a2psdict begin
+%%BeginProlog
+%%Copyright: (c) 1988, 89, 90, 91, 92, 93 Miguel Santana
+%%Copyright: (c) 1995, 96, 97, 98 Akim Demaille, Miguel Santana
+% Check PostScript language level.
+/languagelevel where {
+  pop /gs_languagelevel languagelevel def
+} {
+  /gs_languagelevel 1 def
+} ifelse
+
+% EPSF import as in the Red Book
+/BeginInclude {
+  /b4_Inc_state save def    		% Save state for cleanup
+  /dict_count countdictstack def	% Count objects on dict stack
+  /op_count count 1 sub def		% Count objects on operand stack 
+  userdict begin
+    0 setgray 0 setlinecap
+    1 setlinewidth 0 setlinejoin
+    10 setmiterlimit [ ] 0 setdash newpath
+    gs_languagelevel 1 ne {
+      false setstrokeadjust false setoverprint 
+    } if
+} bind def
+
+/EndInclude {
+  count op_count sub { pos } repeat	% Clean up stacks
+  countdictstack dict_count sub { end } repeat
+  b4_Inc_state restore
+} bind def
+
+/BeginEPSF {
+  BeginInclude
+  /showpage { } def
+} bind def
+
+/EndEPSF {
+  EndInclude
+} bind def
+
+% Page prefeed
+/page_prefeed {         % bool -> -
+  statusdict /prefeed known {
+    statusdict exch /prefeed exch put
+  } {
+    pop
+  } ifelse
+} bind def
+
+/deffont {
+  findfont exch scalefont def
+} bind def
+
+/reencode_font {
+  findfont reencode 2 copy definefont pop def
+} bind def
+
+% Function c-show (str => -)
+% centers text only according to x axis.
+/c-show { 
+  dup stringwidth pop
+  2 div neg 0 rmoveto
+  show
+} bind def
+
+% Function l-show (str => -)
+% prints texts so that it ends at currentpoint
+/l-show {
+  dup stringwidth pop neg 
+  0 
+  rmoveto show
+} bind def
+
+% center-fit show (str w => -)
+% show centered, and scale currentfont so that the width is less than w
+/cfshow {
+  exch dup stringwidth pop
+  % If the title is too big, try to make it smaller
+  3 2 roll 2 copy
+  gt
+  { % if, i.e. too big
+    exch div
+    currentfont exch scalefont setfont
+  } { % ifelse
+    pop pop 
+  }
+  ifelse
+  c-show			% center title
+} bind def
+
+% Return the y size of the current font
+% - => fontsize
+/currentfontsize {
+  currentfont /FontMatrix get 3 get 1000 mul
+} bind def
+
+% reencode the font
+% <encoding-vector> <fontdict> -> <newfontdict>
+/reencode
+{
+   dup length 5 add dict begin
+     { % <vector> <key> <val>
+       1 index /FID ne
+       { def }{ pop pop } ifelse
+     } forall
+     /Encoding exch def % -
+
+     % Use the font's bounding box to determine the ascent, descent,
+     % and overall height; don't forget that these values have to be
+     % transformed using the font's matrix. We use `load' because sometimes
+     % BBox is executable, sometimes not. Since we need 4 numbers an not 
+     % an array avoid BBox from being executed
+     /FontBBox load aload pop
+     FontMatrix transform /Ascent exch def pop
+     FontMatrix transform /Descent exch def pop
+     /FontHeight Ascent Descent sub def
+
+     % Get the underline position and thickness if they're defined.
+     % Use 1 if they are not defined.
+     currentdict /FontInfo 2 copy known
+     { get
+       /UnderlinePosition 2 copy  % <FontInfo> /UP <FontInfo> /UP
+       2 copy known
+       { get }{ pop pop 1} ifelse
+       0 exch FontMatrix transform exch pop
+       def           % <FontInfo>
+
+       /UnderlineThickness 2 copy  % <FontInfo> /UT <FontInfo> /UT
+       2 copy known
+       { get }{ pop pop 1} ifelse
+       0 exch FontMatrix transform exch pop
+       def           % <FontInfo>
+       pop           % -
+     }{ pop pop
+     } ifelse
+
+     currentdict
+     end
+} bind def
+
+% Function print line number (<string> # -)
+/# {
+  gsave
+    sx cw mul neg 2 div 0 rmoveto
+    f# setfont
+    c-show
+  grestore
+} bind def
+
+% -------- Some routines to enlight plain b/w printings ---------
+
+% Underline
+% width --
+/dounderline {
+  currentpoint
+  gsave
+    moveto
+    0 currentfont /Descent get currentfontsize mul rmoveto
+    0 rlineto
+    stroke
+  grestore
+} bind def
+
+% Underline a string
+% string --
+/dounderlinestring {
+  stringwidth pop
+  dounderline
+} bind def
+
+/UL {
+  /ul exch store
+} bind def
+
+% Draw a box of WIDTH wrt current font
+% width --
+/dobox {
+  currentpoint
+  gsave
+    newpath
+    moveto
+    0 currentfont /Descent get currentfontsize mul rmoveto
+    dup 0 rlineto
+    0 currentfont /FontHeight get currentfontsize mul rlineto
+    neg 0 rlineto
+    closepath
+    stroke
+  grestore
+} bind def
+
+/BX {
+  /bx exch store
+} bind def
+
+% Box a string
+% string --
+/doboxstring {
+  stringwidth pop
+  dobox
+} bind def
+
+%
+% ------------- Color routines ---------------
+%
+/FG /setrgbcolor load def
+
+% Draw the background
+% width --
+/dobackground {
+  currentpoint
+  gsave
+    newpath
+    moveto
+    0 currentfont /Descent get currentfontsize mul rmoveto
+    dup 0 rlineto
+    0 currentfont /FontHeight get currentfontsize mul rlineto
+    neg 0 rlineto
+    closepath
+    bgcolor aload pop setrgbcolor
+    fill
+  grestore
+} bind def
+
+% Draw bg for a string
+% string --
+/dobackgroundstring {
+  stringwidth pop
+  dobackground
+} bind def
+
+
+/BG {
+  dup /bg exch store
+  { mark 4 1 roll ] /bgcolor exch store } if
+} bind def
+
+
+/Show {
+  bg { dup dobackgroundstring } if
+  ul { dup dounderlinestring } if
+  bx { dup doboxstring } if
+  show
+} bind def
+
+% Function T(ab), jumps to the n-th tabulation in the current line
+/T {
+  cw mul x0 add
+  bg { dup currentpoint pop sub dobackground } if
+  ul { dup currentpoint pop sub dounderline } if
+  bx { dup currentpoint pop sub dobox } if
+  y0 moveto
+} bind def
+
+% Function n: move to the next line
+/n {
+  /y0 y0 bfs sub store
+  x0 y0 moveto
+} bind def
+
+% Function N: show and move to the next line
+/N {
+  Show
+  /y0 y0 bfs sub store
+  x0 y0 moveto
+} bind def
+
+/S {
+  Show
+} bind def
+
+%%BeginResource: procset a2ps-a2ps-hdr 2.0 2
+%%Copyright: (c) 1988, 89, 90, 91, 92, 93 Miguel Santana
+%%Copyright: (c) 1995, 96, 97, 98 Akim Demaille, Miguel Santana
+% Function title: prints page header.
+% <ct> <rt> <lt> are passed as argument
+/title { 
+  % 1. Draw the background
+  x v get y v get moveto
+  gsave
+    0 th 2 div neg rmoveto 
+    th setlinewidth
+    0.95 setgray
+    pw 0 rlineto stroke
+  grestore
+  % 2. Border it
+  gsave
+    0.7 setlinewidth
+    pw 0 rlineto
+    0 th neg rlineto
+    pw neg 0 rlineto
+    closepath stroke
+  grestore
+  % stk: ct rt lt
+  x v get y v get th sub 1 add moveto
+%%IncludeResource: font Helvetica
+  fHelvetica fnfs 0.8 mul scalefont setfont
+  % 3. The left title
+  gsave
+    dup stringwidth pop fnfs 0.8 mul add exch % leave space took on stack
+    fnfs 0.8 mul hm rmoveto
+    show			% left title
+  grestore
+  exch
+  % stk: ct ltw rt
+  % 4. the right title
+  gsave
+    dup stringwidth pop fnfs 0.8 mul add exch % leave space took on stack
+    dup
+    pw exch stringwidth pop fnfs 0.8 mul add sub
+    hm
+    rmoveto
+    show			% right title
+  grestore
+  % stk: ct ltw rtw
+  % 5. the center title
+  gsave
+    pw 3 1 roll
+    % stk: ct pw ltw rtw
+    3 copy 
+    % Move to the center of the left room
+    sub add 2 div hm rmoveto
+    % What is the available space in here?
+    add sub fnfs 0.8 mul sub fnfs 0.8 mul sub
+    % stk: ct space_left
+%%IncludeResource: font Helvetica-Bold
+  fHelvetica-Bold fnfs scalefont setfont
+    cfshow
+  grestore
+} bind def
+
+% Function border: prints virtual page border
+/border { %def
+  gsave				% print four sides
+    0 setgray
+    x v get y v get moveto
+    0.7 setlinewidth		% of the square
+    pw 0 rlineto
+    0 ph neg rlineto
+    pw neg 0 rlineto
+    closepath stroke
+  grestore
+} bind def
+
+% Function water: prints a water mark in background
+/water { %def
+  gsave
+    scx scy moveto rotate
+%%IncludeResource: font Times-Bold
+  fTimes-Bold 100 scalefont setfont
+    .97 setgray
+    dup stringwidth pop 2 div neg -50 rmoveto
+    show
+  grestore
+} bind def
+
+% Function rhead: prints the right header
+/rhead {  %def
+  lx ly moveto
+  fHelvetica fnfs 0.8 mul scalefont setfont
+  l-show
+} bind def
+
+% Function footer (cf rf lf -> -)
+/footer {
+  fHelvetica fnfs 0.8 mul scalefont setfont
+  dx dy moveto
+  show
+
+  snx sny moveto
+  l-show
+  
+  fnx fny moveto
+  c-show
+} bind def
+%%EndResource
+%%BeginResource: procset a2ps-black+white-Prolog 2.0 1
+
+% Function T(ab), jumps to the n-th tabulation in the current line
+/T { 
+  cw mul x0 add y0 moveto
+} bind def
+
+% Function n: move to the next line
+/n { %def
+  /y0 y0 bfs sub store
+  x0 y0 moveto
+} bind def
+
+% Function N: show and move to the next line
+/N {
+  Show
+  /y0 y0 bfs sub store
+  x0 y0 moveto
+}  bind def
+
+/S {
+  Show
+} bind def
+
+/p {
+  false UL
+  false BX
+  fCourier bfs scalefont setfont
+  Show
+} bind def
+
+/sy {
+  false UL
+  false BX
+  fSymbol bfs scalefont setfont
+  Show
+} bind def
+
+/k {
+  false UL
+  false BX
+  fCourier-Oblique bfs scalefont setfont
+  Show
+} bind def
+
+/K {
+  false UL
+  false BX
+  fCourier-Bold bfs scalefont setfont
+  Show
+} bind def
+
+/c {
+  false UL
+  false BX
+  fCourier-Oblique bfs scalefont setfont
+  Show
+} bind def
+
+/C {
+  false UL
+  false BX
+  fCourier-BoldOblique bfs scalefont setfont
+  Show 
+} bind def
+
+/l {
+  false UL
+  false BX
+  fHelvetica bfs scalefont setfont
+  Show
+} bind def
+
+/L {
+  false UL
+  false BX
+  fHelvetica-Bold bfs scalefont setfont
+  Show 
+} bind def
+
+/str{
+  false UL
+  false BX
+  fTimes-Roman bfs scalefont setfont
+  Show
+} bind def
+
+/e{
+  false UL
+  true BX
+  fHelvetica-Bold bfs scalefont setfont
+  Show
+} bind def
+
+%%EndResource
+%%EndProlog
+%%BeginSetup
+%%IncludeResource: font Courier
+%%IncludeResource: font Courier-Oblique
+%%IncludeResource: font Courier-Bold
+%%IncludeResource: font Times-Roman
+%%IncludeResource: font Symbol
+%%IncludeResource: font Courier-BoldOblique
+%%BeginResource: encoding ISO-8859-1Encoding
+/ISO-8859-1Encoding [
+/.notdef /.notdef /.notdef /.notdef /.notdef /.notdef /.notdef /.notdef 
+/.notdef /.notdef /.notdef /.notdef /.notdef /.notdef /.notdef /.notdef 
+/.notdef /.notdef /.notdef /.notdef /.notdef /.notdef /.notdef /.notdef 
+/.notdef /.notdef /.notdef /.notdef /.notdef /.notdef /.notdef /.notdef 
+/space /exclam /quotedbl /numbersign /dollar /percent /ampersand /quoteright 
+/parenleft /parenright /asterisk /plus /comma /minus /period /slash 
+/zero /one /two /three /four /five /six /seven 
+/eight /nine /colon /semicolon /less /equal /greater /question 
+/at /A /B /C /D /E /F /G 
+/H /I /J /K /L /M /N /O 
+/P /Q /R /S /T /U /V /W 
+/X /Y /Z /bracketleft /backslash /bracketright /asciicircum /underscore 
+/quoteleft /a /b /c /d /e /f /g 
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+/cedilla /onesuperior /ordmasculine /guillemotright /onequarter /onehalf /threequarters /questiondown 
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+/Egrave /Eacute /Ecircumflex /Edieresis /Igrave /Iacute /Icircumflex /Idieresis 
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+/oslash /ugrave /uacute /ucircumflex /udieresis /yacute /thorn /ydieresis 
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+
+% Dictionary for ISO-8859-1 support
+/iso1dict 8 dict begin
+  /fCourier ISO-8859-1Encoding /Courier reencode_font
+  /fCourier-Bold ISO-8859-1Encoding /Courier-Bold reencode_font
+  /fCourier-BoldOblique ISO-8859-1Encoding /Courier-BoldOblique reencode_font
+  /fCourier-Oblique ISO-8859-1Encoding /Courier-Oblique reencode_font
+  /fHelvetica ISO-8859-1Encoding /Helvetica reencode_font
+  /fHelvetica-Bold ISO-8859-1Encoding /Helvetica-Bold reencode_font
+  /fTimes-Bold ISO-8859-1Encoding /Times-Bold reencode_font
+  /fTimes-Roman ISO-8859-1Encoding /Times-Roman reencode_font
+currentdict end def
+/bgcolor [ 0 0 0 ] def
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+% The font for line numbering
+/f# /Helvetica findfont bfs .6 mul scalefont def
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+/hm fnfs 0.25 mul def
+/pw
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+  pmh ph add 0 mul ph add
+  dup
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+%%EndSetup
+
+%%Page: (1-2) 1
+%%BeginPageSetup
+/pagesave save def
+sh 0 translate 90 rotate
+%%EndPageSetup
+iso1dict begin
+gsave
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+(#!/usr/bin/python) c n
+() p n
+(import) K
+( socket) p n
+(import) K
+( Queue) p n
+(import) K
+( threading) p n
+(import) K
+( md5) p n
+(import) K
+( time) p n
+() N
+(class) K
+( Entry\(object\):) p n
+(    ) S
+(def) K
+( __init__\(self, dynid, sharedSecret, name\):) p n
+(        self.dynid = dynid) N
+(        self.sharedSecret = sharedSecret) N
+(        self.name = name) N
+(        self.lastEventTime = 0) N
+(        self.address = '') N
+() N
+(class) K
+( IllegalEventException\(Exception\):) p n
+(    ) S
+(def) K
+( __init__\(self, msg\):) p n
+(        self.msg = msg) N
+() N
+() N
+(class) K
+( Event\(object\):) p n
+(    ) S
+(def) K
+( __init__\(self, address, data, receiveTime\):) p n
+(        self.address = address) N
+(        self.data = data) N
+(        self.receiveTime = receiveTime) N
+() N
+(    ) S
+(def) K
+( prepare\(self\):) p n
+(        self.port = self.address[1]) N
+(        self.address = self.address[0]) N
+(        \(self.dynid, self.msgTime, self.checksum\) = self.data.split\(') S
+( ) str
+('\)) p n
+(        self.msgTime = int\(self.msgTime\)) N
+(        self.prepared = True) N
+() N
+(    ) S
+(def) K
+( process\(self\):) p n
+(        ) S
+(if) K
+( ) p
+(not) K
+( self.prepared:) p n
+(            self.prepare\(\)) N
+() N
+(        ) S
+(if) K
+( ) p
+(not) K
+( ENTRIES.has_key\(self.dynid\):) p n
+(            ) S
+(raise) K
+( IllegalEventException\(") p
+(unknown dynid in event %s) str
+(" % str\(self\)\)) p n
+(        entry = ENTRIES[self.dynid]) N
+() N
+(        ) S
+(if) K
+( self.msgTime + MSG_TIME_CORRIDOR < self.receiveTime:) p n
+(            ) S
+(raise) K
+( IllegalEventException\(") p
+(event too old %s) str
+(" % str\(self\)\)) p n
+(        ) S
+(if) K
+( self.msgTime - MSG_TIME_CORRIDOR > self.receiveTime:) p n
+(            ) S
+(raise) K
+( IllegalEventException\(") p
+(event too young %s) str
+(" % str\(self\)\)) p n
+() N
+() N
+(        ) S
+(if) K
+( entry.lastEventTime >= self.msgTime:) p n
+(            ) S
+(raise) K
+( IllegalEventException\(") p
+(timing sequence failure in event, possibly replay ) str n
+(%s) S
+(" % str\(self\)\)) p n
+() N
+(        di = ") S
+(%s %s %d) str
+(" % \(self.dynid, entry.sharedSecret, self.msgTime\)) p n
+(        d = md5.new\(di\).hexdigest\(\)) N
+(        ) S
+(print) K
+( ") p
+(%s, received: %s, calculated: %s) str
+(" % \(di, self.checksum, d\)) p n
+(        ) S
+(if) K
+( d != self.checksum:) p n
+(            ) S
+(raise) K
+( IllegalEventException\(") p
+(wrong checksum for event %s) str
+(" % str\(self) p n
+(\)\)) N
+() N
+(        entry.lastEventTime = self.msgTime) N
+() N
+(        ) S
+(if) K
+( entry.address == self.address:) p n
+(            ) S
+(print) K
+( ") p
+(Same address, nothing to do.) str
+(") p n
+(        ) S
+(else) K
+(:) p n
+(yadyn) (Seite 1/3) (Nov 09, 07 13:31) title
+border
+/v 1 store
+/x0 x v get 3.360000 add sx cw mul add store
+/y0 y v get bfs th add sub store
+x0 y0 moveto
+(            entry.address = self.address) p n
+(            ) S
+(print) K
+( ") p
+(Set in DNS: %s -> %s) str
+(" % \(entry.name, entry.address\)) p n
+() N
+() N
+(    ) S
+(def) K
+( __str__\(self\):) p n
+(        ) S
+(if) K
+( ) p
+(not) K
+( self.prepared:) p n
+(            self.prepare\(\)) N
+(        ) S
+(return) K
+( ") p
+(%s from %s:%d) str
+(" % \(self.data, self.address, self.port\)) p n
+() N
+(class) K
+( Handler\(threading.Thread\):) p n
+(    ) S
+(def) K
+( __init__\(self, queue\):) p n
+(        threading.Thread.__init__\(self\)) N
+(        self.q = queue) N
+(        self.setDaemon\(True\)) N
+() N
+(    ) S
+(def) K
+( run\(self\):) p n
+(        ) S
+(while) K
+( True:) p n
+(            event = self.q.get\(\)) N
+(            ) S
+(try) K
+(:) p n
+(                event.prepare\(\)) N
+(                ) S
+(print) K
+( ") p
+(Processing event %s) str
+(" % str\(event\)) p n
+(                event.process\(\)) N
+(            ) S
+(except) K
+( IllegalEventException, e:) p n
+(                ) S
+(print) K
+( ") p
+(Some failure: %s) str
+(" % e.msg) p n
+() N
+(class) K
+( Expirer\(threading.Thread\):) p n
+(    ) S
+(def) K
+( __init__\(self\):) p n
+(        threading.Thread.__init__\(self\)) N
+(        self.setDaemon\(True\)) N
+() N
+(    ) S
+(def) K
+( run\(self\):) p n
+(        ) S
+(while) K
+( True:) p n
+(            ) S
+(print) K
+( ") p
+(Expiring ...) str
+(") p n
+(            currentTime = int\(time.time\(\)\)) N
+(            ) S
+(for) K
+( entry ) p
+(in) K
+( ENTRIES.values\(\):) p n
+(                ) S
+(if) K
+( entry.lastEventTime != 0 ) p
+(and) K
+( entry.lastEventTime + EVEN) p n
+(T_LIFE_TIME < currentTime:) N
+(                    ) S
+(print) K
+( ") p
+(Entry %s expired) str
+(" % entry.dynid) p n
+(                    entry.lastEventTime = 0) N
+(                    entry.address = NULL_ADDRESS) N
+(                    ) S
+(print) K
+( ") p
+(Set in DNS: %s -> %s) str
+(" % \(entry.name, entry.address\)) p n
+(            time.sleep\(10\)) N
+(                                ) N
+() N
+(ENTRIES = {) N
+(    ') S
+(testhost) str
+(': Entry\(') p
+(testhost,) str
+(', ') p
+(test123) str
+(', ') p
+(test.test.de) str
+('\),) p n
+(    }) N
+(MSG_TIME_CORRIDOR = 5) N
+(EVENT_LIFE_TIME = 10) N
+(NULL_ADDRESS = ') S
+(0.0.0.0) str
+(') p n
+() N
+(q = Queue.Queue\(\)) N
+() N
+(handler = Handler\(q\)) N
+(handler.start\(\)) N
+() N
+(expirer = Expirer\(\)) N
+(expirer.start\(\)) N
+() N
+(s = socket.socket\(socket.AF_INET, socket.SOCK_DGRAM\)) N
+(s.bind\(\("", 9090\)\)) N
+() N
+(while) K
+( True:) p n
+(    data, address = s.recvfrom\(256\)) N
+(yadyn) (Seite 2/3) (Nov 09, 07 13:31) title
+border
+grestore
+(Gedruckt von Wolfgang Hottgenroth) rhead
+(yadyn) (1/2) (Samstag November 10, 2007) footer
+end % of iso1dict
+pagesave restore
+showpage
+%%Page: (3) 2
+%%BeginPageSetup
+/pagesave save def
+sh 0 translate 90 rotate
+%%EndPageSetup
+iso1dict begin
+gsave
+llx lly 12 add translate
+/v 0 store
+/x0 x v get 3.360000 add sx cw mul add store
+/y0 y v get bfs th add sub store
+x0 y0 moveto
+(    ) p
+(try) K
+(:) p n
+(        q.put_nowait\(Event\(address, data, int\(time.time\(\)\)\)\)) N
+(    ) S
+(except) K
+( Queue.Full:) p n
+(        ) S
+(print) K
+( ") p
+(Event %s from %s dropped) str
+(" % \(data, str\(address\)\)) p n
+() N
+(yadyn) (Seite 3/3) (Nov 09, 07 13:31) title
+border
+grestore
+(Gedruckt von Wolfgang Hottgenroth) rhead
+(yadyn) (2/2) (Samstag November 10, 2007) footer
+end % of iso1dict
+pagesave restore
+showpage
+
+%%Trailer
+end
+%%EOF