Subversion Repositories Remote Hare Voting

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#!/p/python/python
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import cgi
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import string
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import sys
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import revision
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import parseinput
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import tally
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fHTML = 1
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formaction = string.split(sys.argv[0],"/")[-1]
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def emitPreHTML(formaction):
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    emitHTML("""Content-type: text/html\n
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<html>
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<body>
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<title>Hare Ballot Calculation</title>
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    <h1>Hare Ballot Calculation</h1>
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    <form enctype="multipart/form-data" method=POST action=%s>
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        <table>
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        <tr><td>CSV file of ballots:
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                <td><input type=file size=70 name=name>
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        </table>
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        <p>
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        <input type=submit name="run1" value="Run 1 Time">
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        <input type=submit name="run1000" value="Run 1000 Times">
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    </form>
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    <p>
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Input file format is given
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<a href="http://www.bikmort.com/wiki/index.php?title=Hare_Voting_Procedure">here</a>.
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Almost no error checking is done, so be sure to review the trace output.
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The source code is available <a href="%s?fetch=yes">here</a>.
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<p>
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<small>%s</small>
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<hr>
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<pre>
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""" % (formaction, formaction, revision.revision))
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    return
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def emitPostHTML():
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    emitHTML("""</pre>
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</body>
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</html>
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""")
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    return
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def emitHTML(s):
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    global fHTML
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    if fHTML: print s
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    return
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def main():
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    emitPreHTML(formaction)
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    form = cgi.FieldStorage()
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    if not form:
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        emitHTML("Enter file name and press a button to see results.")
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    elif form.has_key("fetch"):
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	filename = string.replace(formaction, "vote.py", "tally.py")
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	source = open(filename).read()
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	print cgi.escape(source)
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    elif not form.has_key("name"):
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        emitHTML("Error: no file received")
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    elif not form["name"].filename:
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        emitHTML("Error: file name missing")
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    else:
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        name = form["name"].filename
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        contents = form["name"].value
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	tally.trace("INPUT FILE")
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	tally.trace(contents)
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        nWinners, ballots = parseinput.parsestring(contents)
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	if form.has_key("run1"):
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	    results = tally.dotally(nWinners, ballots)
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	    print "\nFINAL RESULTS"
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	    for winner in results:
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		print "\t%s" % winner
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	elif form.has_key("run1000"):
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	    print "RUNNING 1000 TIMES"
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	    tally.fTrace = 0
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	    summary = {}
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	    for i in range(1000):
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		results = str(tally.dotally(nWinners, ballots))
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		# print "Run %2d: %s" % (i+1, results)
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		if not summary.has_key(results):
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		    summary[results] = 0
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		summary[results] = summary[results] + 1
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	    print "\nSUMMARY"
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	    l = summary.items()
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	    l.sort(lambda x,y: cmp(y[1], x[1]))
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	    for pair in l:
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		print "%2d %s" % (pair[1], pair[0])
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	else:
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	    print "UNEXPECTED SUBMIT BUTTON: %s" % form
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    emitPostHTML()
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    return
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if __name__=='__main__':
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    main()