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Some experiments with web applications
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dvb-webapp/scripts/abfahrtsmonitor.py

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python script to get the vvo data and send it to the calling ajax js * we get a request from the ajax function in the javascript * we parse the queries of the request * we send a request with the parsed queries to the vvo server * we get the data from the vvo server * we send the data to the requesting ajax function
11 years ago
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begin to develop support for getting station names * new query: query which contains the wished server script to call * query can contain 'haltestelle.do' or 'abfahrten.do' * all other values are rejected and answered with empty array
11 years ago
refactoring of the form data processing * now a for loop, where we iterate over the keys of the queries dict * when a key is found in the form queries, we set it to the form value
11 years ago
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python script to get the vvo data and send it to the calling ajax js * we get a request from the ajax function in the javascript * we parse the queries of the request * we send a request with the parsed queries to the vvo server * we get the data from the vvo server * we send the data to the requesting ajax function
11 years ago
​
begin to develop support for getting station names * new query: query which contains the wished server script to call * query can contain 'haltestelle.do' or 'abfahrten.do' * all other values are rejected and answered with empty array
11 years ago
​
python script to get the vvo data and send it to the calling ajax js * we get a request from the ajax function in the javascript * we parse the queries of the request * we send a request with the parsed queries to the vvo server * we get the data from the vvo server * we send the data to the requesting ajax function
11 years ago
port the dict queries processing to python2.6 * method viewkeys() not available in python2.6 * instead we iterate now with simple for-loop over queries dict
11 years ago
refactoring of the form data processing * now a for loop, where we iterate over the keys of the queries dict * when a key is found in the form queries, we set it to the form value
11 years ago
​
python script to get the vvo data and send it to the calling ajax js * we get a request from the ajax function in the javascript * we parse the queries of the request * we send a request with the parsed queries to the vvo server * we get the data from the vvo server * we send the data to the requesting ajax function
11 years ago
refactoring of the form data processing * now a for loop, where we iterate over the keys of the queries dict * when a key is found in the form queries, we set it to the form value
11 years ago
begin to develop support for getting station names * new query: query which contains the wished server script to call * query can contain 'haltestelle.do' or 'abfahrten.do' * all other values are rejected and answered with empty array
11 years ago
​
​
​
​
python script to get the vvo data and send it to the calling ajax js * we get a request from the ajax function in the javascript * we parse the queries of the request * we send a request with the parsed queries to the vvo server * we get the data from the vvo server * we send the data to the requesting ajax function
11 years ago
refactoring of the form data processing * now a for loop, where we iterate over the keys of the queries dict * when a key is found in the form queries, we set it to the form value
11 years ago
​
python script to get the vvo data and send it to the calling ajax js * we get a request from the ajax function in the javascript * we parse the queries of the request * we send a request with the parsed queries to the vvo server * we get the data from the vvo server * we send the data to the requesting ajax function
11 years ago
​
 
  1. #!/usr/bin/python
  2. # -*- coding: iso-8859-1 -*-
  3. 

  4. import cgi
  5. import urllib
  6. import urllib2
  7. 

  8. 

  9. # get cgi object
  10. form = cgi.FieldStorage()
  11. 

  12. url = "http://widgets.vvo-online.de/abfahrtsmonitor/"
  13. query = ""
  14. 

  15. queries = {
  16.     "ort": "",
  17.     "hst": "",
  18.     "vz": "",
  19.     "vm": "",
  20.     "timestamp": ""
  21. }
  22. 

  23. # available server scripts = valid queries
  24. validqueries = ["haltestelle.do", "abfahrten.do"]
  25. 

  26. # check for queries
  27. if (form.getvalue('query')):
  28.     query = form.getvalue('query')
  29. 

  30. for key in queries:
  31.     if (form.getvalue(key)):
  32.         queries[key] = form.getvalue(key)
  33. 

  34. # call the vvo server if the query is valid
  35. if (query in validqueries):
  36.     url += query + "?" + urllib.urlencode(queries)
  37.     data = urllib2.urlopen(url).read()
  38. else:
  39.     data = "[]"
  40. 

  41. # return the http response with the data received from server
  42. # or an empty array if query was invalid
  43. print("Content-type: text/html\n\n")
  44. print(data)