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
  96       self.wfile.write ("<html><head><base href="+self.base+"/Questions/>")
  97       self.wfile.write ("<link href="+self.stylefile+" rel=stylesheet type=text/css>")
  98       self.wfile.write ("<meta http-equiv=\"Content-Type\" content=\"text/html; charset=utf8\">")
  99       self.wfile.write ("</head><body>")
 100
 101    def DisplayHint(self):
 102       self.SendHeader()
 103       print "Hint:",f.hint
 104       self.wfile.write ("<html><head><meta http-equiv=refresh content=\"0; URL=/"+f.hint+"\"></head></html>")
 105
 106    def SendHeader(self):
 107       self.send_response(200)
 108       self.send_header('Content-type', 'text/html')
 109       self.end_headers()
 110
 111    def DisplayQuestion(self):
 112       self.wfile.write("<div class=id>"+f.id+"</div>")
 113       self.wfile.write("<div class=question>")
 114       self.wfile.write(f.question.encode("utf8"))
 115       self.wfile.write("</div>")
 116
 117    def WrongAnswer(self):
 118       self.SendHeader()
 119       self.base="http://127.0.0.1:8080"
 120       self.wfile.write("<html><head><base href="+self.base+"/Questions/></head><body>")
 121       self.wfile.write("<div class=wronganswer>Falsche Antwort</div><br>")
 122       self.DisplayQuestion()
 123       self.wfile.write("<div class=correctanswer>"+f.answercorrect+"</div>")
 124
 125
 126    def StartDisplay(self):
 127       self.SendHeader()
 128       self.base="http://127.0.0.1:8080"
 129
 130       self.wfile.write("<frameset border=0 frameborder=0 framespacing=0 marginwidth=0 rows=70px,*>")
 131       self.wfile.write("<frame name=menue src=menue.afu scrolling=no noresize>")
 132       self.wfile.write("<frame name=main src=askquestion.afu scrolling=auto noresize>")
 133       self.wfile.write("</frameset>")
 134
 135    def AskQuestion(self):
 136       self.base="http://127.0.0.1:8080"
 137       self.wfile.write("<html><head><base href="+self.base+"/Questions/></head><body>")
 138
 139       f.AskQuestion()
 140       self.DisplayQuestion()
 141
 142       self.wfile.write("<div class=answer>")
 143       self.wfile.write("<a href="+self.base+"/a.afu class=button>A</a>"+f.answera+"<br>")
 144       self.wfile.write("<a href="+self.base+"/b.afu class=button>B</a>"+f.answerb+"<br>")
 145       self.wfile.write("<a href="+self.base+"/c.afu class=button>C</a>"+f.answerc+"<br>")
 146       self.wfile.write("<a href="+self.base+"/d.afu class=button>D</a>"+f.answerd+"<br>")
 147       self.wfile.write("</div>")
 148
 149       self.wfile.write("<div class=hint>")
 150       self.wfile.write("<a href="+self.base+"/hint.afu>Hinweis</a></div>")
 151
 152       self.wfile.write("</body></html>")
 153
 154    def DisplayMenu(self):
 155       self.SendHeader()
 156       self.base="http://127.0.0.1:8080"
 157       self.stylefile=""
 158
 159       self.wfile.write("<html><head><base target=main><link href="+self.stylefile+" rel=stylesheet type=text/css></head>")
 160       self.wfile.write("<body><div class=menue>")
 161       self.wfile.write("<a class=menue href="+self.base+"/askquestion.afu>Abfragen</a>")
 162       self.wfile.write("</div></body></html>")
 163
 164
 165    def do_POST(self):
 166       global rootnode
 167       ctype, pdict = cgi.parse_header(self.headers.getheader('content-type'))
 168       if ctype == 'multipart/form-data':
 169           query=cgi.parse_multipart(self.rfile, pdict)
 170       self.send_response(301)
 171
 172       self.end_headers()
 173       upfilecontent = query.get('upfile')
 174       print "filecontent", upfilecontent[0]
 175       self.wfile.write("<HTML>POST OK.<BR><BR>");
 176       self.wfile.write(upfilecontent[0]);
 177
 178 def main():
 179    try:
 180       global f
 181       f = framework.Framework()
 182       server = HTTPServer(('', 8080), MyHandler)
 183       print 'started httpserver...'
 184       server.serve_forever()
 185    except KeyboardInterrupt:
 186       print '^C received, shutting down server'
 187       server.socket.close()
 188
 189 if __name__ == '__main__':
 190     main()