interface.py

   1 #!/usr/bin/python
   2 import string,cgi,time,posixpath, urllib, os
   3 from os import curdir, sep
   4 from BaseHTTPServer import BaseHTTPRequestHandler, HTTPServer
   5 import framework
   6
   7 class MyHandler(BaseHTTPRequestHandler):
   8    def do_GET(self):
   9       if self.path.endswith(".afu"):
  10          self.AFU()
  11       else:
  12          f = self.send_head()
  13          if f:
  14             self.copyfile(f, self.wfile)
  15             f.close()
  16
  17    def do_HEAD(self):
  18      f = self.send_head()
  19      if f:
  20          f.close()
  21
  22    def send_head(self):
  23       path = self.translate_path(self.path)
  24       if os.path.isdir(path):
  25          self.send_error(403, "Directory listing not supported")
  26          return None
  27       try:
  28          f = open(path, 'rb')
  29       except IOError:
  30          self.send_error(404, "File not found")
  31          return None
  32       self.send_response(200)
  33       self.send_header("Content-type", self.guess_type(path))
  34       self.end_headers()
  35       return f
  36
  37    def translate_path(self, path):
  38       path = posixpath.normpath(urllib.unquote(path))
  39       words = string.splitfields(path, '/')
  40       words = filter(None, words)
  41       path = os.getcwd()
  42       for word in words:
  43          drive, word = os.path.splitdrive(word)
  44          head, word = os.path.split(word)
  45          if word in (os.curdir, os.pardir): continue
  46          path = os.path.join(path, word)
  47       return path
  48
  49    def copyfile(self, source, outputfile):
  50       BLOCKSIZE = 8192
  51       while 1:
  52          data = source.read(BLOCKSIZE)
  53          if not data: break
  54          outputfile.write(data)
  55
  56    def guess_type(self, path):
  57       base, ext = posixpath.splitext(path)
  58       if self.extensions_map.has_key(ext):
  59          return self.extensions_map[ext]
  60       ext = string.lower(ext)
  61       if self.extensions_map.has_key(ext):
  62          return self.extensions_map[ext]
  63       else:
  64          return self.extensions_map['']
  65
  66    extensions_map = {
  67       '': 'text/plain',   # Default, *must* be present
  68       '.html': 'text/html',
  69       '.htm': 'text/html',
  70       '.gif': 'image/gif',
  71       '.jpg': 'image/jpeg',
  72       '.jpeg': 'image/jpeg',
  73       }
  74
  75    def AFU(self):
  76       if self.path.endswith("a.afu") or self.path.endswith("b.afu") or self.path.endswith("c.afu") or self.path.endswith("d.afu"):
  77          answer = (self.path.split("/")[-1]).replace(".afu","")
  78          if not f.EvalQuestion (answer):
  79             self.WrongAnswer()
  80          else:
  81             self.AskQuestion()
  82       elif self.path.endswith("hint.afu"):
  83          self.DisplayHint()
  84       elif self.path.endswith("menue.afu"):
  85          self.DisplayMenu()
  86       elif self.path.endswith("askquestion.afu"):
  87          self.AskQuestion()
  88       elif self.path.endswith("showquestion.afu"):
  89          self.AskQuestion(update=False)
  90       else:
  91          self.StartDisplay()
  92
  93    def ShowHead(self):
  94       self.wfile.write ("<html><head><base href="+base+"/Questions/>")
  95       self.wfile.write ("<link href="+stylefile+" rel=stylesheet type=text/css>")
  96       self.wfile.write ("<meta http-equiv=\"Content-Type\" content=\"text/html; charset=utf8\">")
  97
  98       self.wfile.write ("<SCRIPT LANGUAGE=\"JavaScript\">")
  99       self.wfile.write ("var inNav = navigator.appVersion.indexOf(\"MSIE\") < 0;")
 100       self.wfile.write ("function eval_key (event) {")
 101       self.wfile.write ("var key = (inNav==1) ? event.which : event.keyCode;")
 102       self.wfile.write ("if (key == 65) {   window.location = \""+base+"/a.afu\";")
 103       self.wfile.write ("} else if (key == 66) {  window.location = \""+base+"/b.afu\";")
 104       self.wfile.write ("} else if (key == 67) {  window.location = \""+base+"/c.afu\";")
 105       self.wfile.write ("} else if (key == 68) {  window.location = \""+base+"/d.afu\";")
 106       self.wfile.write ("}")
 107       self.wfile.write ("}")
 108       self.wfile.write ("document.onkeydown = eval_key;")
 109       self.wfile.write ("</script>")
 110
 111       self.wfile.write ("</head><body>")
 112
 113    def DisplayHint(self):
 114       self.SendHeader()
 115       print "Hint:",f.hint
 116       self.wfile.write ("<html><head><meta http-equiv=refresh content=\"0; URL=/"+f.hint+"\"></head></html>")
 117
 118    def SendHeader(self):
 119       self.send_response(200)
 120       self.send_header('Content-type', 'text/html')
 121       self.end_headers()
 122
 123    def DisplayQuestion(self):
 124       self.wfile.write("<div class=id>"+f.id+"</div>")
 125       self.wfile.write("<div class=question>")
 126       self.wfile.write(f.question.encode("utf8"))
 127       self.wfile.write("</div>")
 128       self.wfile.write("<div class=statistics>Richtig: "+f.correct+" <br>Falsch: "+f.wrong+"</div>")
 129
 130    def WrongAnswer(self):
 131       self.SendHeader()
 132       self.ShowHead()
 133       self.wfile.write("<div class=wronganswer>Falsche Antwort</div>")
 134       self.DisplayQuestion()
 135       self.wfile.write("<div class=correctanswer>"+f.answercorrect.encode("utf8")+"</div>")
 136
 137
 138    def StartDisplay(self):
 139       self.SendHeader()
 140
 141       self.wfile.write("<frameset border=0 frameborder=0 framespacing=0 marginwidth=0 rows=30px,*>")
 142       self.wfile.write("<frame name=menue src=menue.afu scrolling=no noresize>")
 143       self.wfile.write("<frame name=main src=askquestion.afu scrolling=auto noresize>")
 144       self.wfile.write("</frameset>")
 145
 146    def AskQuestion(self,update=True):
 147       self.ShowHead()
 148       self.wfile.write("<body>")
 149
 150       if update:
 151          f.AskQuestion()
 152
 153       self.DisplayQuestion()
 154
 155       self.wfile.write("<div class=answer>")
 156       self.wfile.write("<a href="+base+"/a.afu class=button1>A</a>"+f.answera.encode("utf8")+"<br>")
 157       self.wfile.write("<a href="+base+"/b.afu class=button1>B</a>"+f.answerb.encode("utf8")+"<br>")
 158       self.wfile.write("<a href="+base+"/c.afu class=button1>C</a>"+f.answerc.encode("utf8")+"<br>")
 159       self.wfile.write("<a href="+base+"/d.afu class=button1>D</a>"+f.answerd.encode("utf8")+"<br>")
 160       self.wfile.write("</div>")
 161
 162       self.wfile.write("<div class=button>")
 163       self.wfile.write("<a href="+base+"/a.afu class=button>A</a>")
 164       self.wfile.write("<a href="+base+"/b.afu class=button>B</a>")
 165       self.wfile.write("<a href="+base+"/c.afu class=button>C</a>")
 166       self.wfile.write("<a href="+base+"/d.afu class=button>D</a>")
 167       self.wfile.write("</div>")
 168
 169       self.wfile.write("<div class=hint>")
 170       self.wfile.write("<a href="+base+"/hint.afu target=hint>Hinweis</a></div>")
 171
 172       self.wfile.write("</body></html>")
 173
 174    def DisplayMenu(self):
 175       self.SendHeader()
 176
 177       self.wfile.write("<html><head><base target=main><link href="+stylefile+" rel=stylesheet type=text/css></head>")
 178       self.wfile.write("<body class=menue><div class=menue>")
 179       self.wfile.write("<a class=menue href="+base+"/askquestion.afu>Abfragen</a>")
 180       self.wfile.write("<a class=menue href="+base+"/showquestion.afu>Zur&uuml;ck zur Frage</a>")
 181       self.wfile.write("<a class=menue href="+base+"/method.afu>Abfragemethode</a>")
 182       self.wfile.write("<a class=menue href="+base+"/statistic.afu>Statistik</a>")
 183       self.wfile.write("</div></body></html>")
 184
 185
 186    def do_POST(self):
 187       global rootnode
 188       ctype, pdict = cgi.parse_header(self.headers.getheader('content-type'))
 189       if ctype == 'multipart/form-data':
 190           query=cgi.parse_multipart(self.rfile, pdict)
 191       self.send_response(301)
 192
 193       self.end_headers()
 194       upfilecontent = query.get('upfile')
 195       print "filecontent", upfilecontent[0]
 196       self.wfile.write("<HTML>POST OK.<BR><BR>");
 197       self.wfile.write(upfilecontent[0]);
 198
 199 def main():
 200    global f,port,base,stylefile
 201    port = 8080
 202    base = "http://127.0.0.1:"+str(port)+"/"
 203    stylefile = base+"/style.css"
 204
 205    try:
 206       f = framework.Framework()
 207       server = HTTPServer(('', port), MyHandler)
 208       print 'Started httpserver on port',port
 209       print "Terminate with Ctrl+C"
 210       server.serve_forever()
 211    except KeyboardInterrupt:
 212       print '^C received, shutting down http server'
 213       f.Close()
 214       server.socket.close()
 215
 216 if __name__ == '__main__':
 217     main()