interface.py

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