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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
12 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
12 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
12 years ago
​
encode queries before use them with the url in the urlopen() method * creating an sequence of two-element tuples with the queries gotten from the ajax calling instance * use that sequence of tuples with the urlencode() method to create the encoded string of queries
12 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
12 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
12 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
12 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
12 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
12 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
12 years ago
​
encode queries before use them with the url in the urlopen() method * creating an sequence of two-element tuples with the queries gotten from the ajax calling instance * use that sequence of tuples with the urlencode() method to create the encoded string of queries
12 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
12 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
12 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
12 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. querytype = ""
  14. ort = ""
  15. hst = ""
  16. vz = ""
  17. vm = ""
  18. timestamp = ""
  19. 

  20. # check for queries
  21. if (form.getvalue('query')):
  22.     query = form.getvalue('query')
  23. if (form.getvalue('ort')):
  24.     ort = form.getvalue('ort')
  25. if (form.getvalue('hst')):
  26.     hst = form.getvalue('hst')
  27. if (form.getvalue('vz')):
  28.     vz = form.getvalue('vz')
  29. if (form.getvalue('vm')):
  30.     vm = form.getvalue('vm')
  31. if (form.getvalue('timestamp')):
  32.     timestamp = form.getvalue('timestamp')
  33. 

  34. validqueries = ["haltestelle.do", "abfahrten.do"]
  35. 

  36. queries = {
  37.     "ort": ort,
  38.     "hst": hst,
  39.     "vz": vz,
  40.     "vm": vm,
  41.     "timestamp": timestamp
  42. }
  43. 

  44. if (query in validqueries):
  45.     url += query + "?" + urllib.urlencode(queries)
  46.     data = urllib2.urlopen(url).read()
  47. else:
  48.     data = "[]"
  49. 

  50. print("Content-type: text/html\n\n")
  51. print(data)