MCL/sf/adapt/qemu: symbian-qemu-0.9.1-12/python-2.6.1/Demo/cgi/wiki.py@2fb8b9db1c86 (annotated)

1 2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import martin.trojer@nokia.com parents: diff changeset	1	"""Wiki main program. Imported and run by cgi3.py."""
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import martin.trojer@nokia.com parents: diff changeset	2
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import martin.trojer@nokia.com parents: diff changeset	3	import os, re, cgi, sys, tempfile
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import martin.trojer@nokia.com parents: diff changeset	4	escape = cgi.escape
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import martin.trojer@nokia.com parents: diff changeset	5
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import martin.trojer@nokia.com parents: diff changeset	6	def main():
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import martin.trojer@nokia.com parents: diff changeset	7	form = cgi.FieldStorage()
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import martin.trojer@nokia.com parents: diff changeset	8	print "Content-type: text/html"
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import martin.trojer@nokia.com parents: diff changeset	9	print
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import martin.trojer@nokia.com parents: diff changeset	10	cmd = form.getvalue("cmd", "view")
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import martin.trojer@nokia.com parents: diff changeset	11	page = form.getvalue("page", "FrontPage")
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import martin.trojer@nokia.com parents: diff changeset	12	wiki = WikiPage(page)
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import martin.trojer@nokia.com parents: diff changeset	13	method = getattr(wiki, 'cmd_' + cmd, None) or wiki.cmd_view
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import martin.trojer@nokia.com parents: diff changeset	14	method(form)
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import martin.trojer@nokia.com parents: diff changeset	15
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import martin.trojer@nokia.com parents: diff changeset	16	class WikiPage:
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import martin.trojer@nokia.com parents: diff changeset	17
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import martin.trojer@nokia.com parents: diff changeset	18	homedir = tempfile.gettempdir()
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import martin.trojer@nokia.com parents: diff changeset	19	scripturl = os.path.basename(sys.argv[0])
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import martin.trojer@nokia.com parents: diff changeset	20
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import martin.trojer@nokia.com parents: diff changeset	21	def __init__(self, name):
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import martin.trojer@nokia.com parents: diff changeset	22	if not self.iswikiword(name):
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import martin.trojer@nokia.com parents: diff changeset	23	raise ValueError, "page name is not a wiki word"
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import martin.trojer@nokia.com parents: diff changeset	24	self.name = name
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import martin.trojer@nokia.com parents: diff changeset	25	self.load()
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import martin.trojer@nokia.com parents: diff changeset	26
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import martin.trojer@nokia.com parents: diff changeset	27	def cmd_view(self, form):
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import martin.trojer@nokia.com parents: diff changeset	28	print "<h1>", escape(self.splitwikiword(self.name)), "</h1>"
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import martin.trojer@nokia.com parents: diff changeset	29	print "<p>"
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import martin.trojer@nokia.com parents: diff changeset	30	for line in self.data.splitlines():
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import martin.trojer@nokia.com parents: diff changeset	31	line = line.rstrip()
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import martin.trojer@nokia.com parents: diff changeset	32	if not line:
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import martin.trojer@nokia.com parents: diff changeset	33	print "<p>"
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import martin.trojer@nokia.com parents: diff changeset	34	else:
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import martin.trojer@nokia.com parents: diff changeset	35	print self.formatline(line)
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import martin.trojer@nokia.com parents: diff changeset	36	print "<hr>"
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import martin.trojer@nokia.com parents: diff changeset	37	print "<p>", self.mklink("edit", self.name, "Edit this page") + ";"
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import martin.trojer@nokia.com parents: diff changeset	38	print self.mklink("view", "FrontPage", "go to front page") + "."
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import martin.trojer@nokia.com parents: diff changeset	39
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import martin.trojer@nokia.com parents: diff changeset	40	def formatline(self, line):
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import martin.trojer@nokia.com parents: diff changeset	41	words = []
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import martin.trojer@nokia.com parents: diff changeset	42	for word in re.split('(\W+)', line):
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import martin.trojer@nokia.com parents: diff changeset	43	if self.iswikiword(word):
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import martin.trojer@nokia.com parents: diff changeset	44	if os.path.isfile(self.mkfile(word)):
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import martin.trojer@nokia.com parents: diff changeset	45	word = self.mklink("view", word, word)
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import martin.trojer@nokia.com parents: diff changeset	46	else:
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import martin.trojer@nokia.com parents: diff changeset	47	word = self.mklink("new", word, word + "*")
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import martin.trojer@nokia.com parents: diff changeset	48	else:
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import martin.trojer@nokia.com parents: diff changeset	49	word = escape(word)
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import martin.trojer@nokia.com parents: diff changeset	50	words.append(word)
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import martin.trojer@nokia.com parents: diff changeset	51	return "".join(words)
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import martin.trojer@nokia.com parents: diff changeset	52
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import martin.trojer@nokia.com parents: diff changeset	53	def cmd_edit(self, form, label="Change"):
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import martin.trojer@nokia.com parents: diff changeset	54	print "<h1>", label, self.name, "</h1>"
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import martin.trojer@nokia.com parents: diff changeset	55	print '<form method="POST" action="%s">' % self.scripturl
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import martin.trojer@nokia.com parents: diff changeset	56	s = '<textarea cols="70" rows="20" name="text">%s</textarea>'
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import martin.trojer@nokia.com parents: diff changeset	57	print s % self.data
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import martin.trojer@nokia.com parents: diff changeset	58	print '<input type="hidden" name="cmd" value="create">'
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import martin.trojer@nokia.com parents: diff changeset	59	print '<input type="hidden" name="page" value="%s">' % self.name
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import martin.trojer@nokia.com parents: diff changeset	60	print '<br>'
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import martin.trojer@nokia.com parents: diff changeset	61	print '<input type="submit" value="%s Page">' % label
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import martin.trojer@nokia.com parents: diff changeset	62	print "</form>"
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import martin.trojer@nokia.com parents: diff changeset	63
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import martin.trojer@nokia.com parents: diff changeset	64	def cmd_create(self, form):
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import martin.trojer@nokia.com parents: diff changeset	65	self.data = form.getvalue("text", "").strip()
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import martin.trojer@nokia.com parents: diff changeset	66	error = self.store()
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import martin.trojer@nokia.com parents: diff changeset	67	if error:
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import martin.trojer@nokia.com parents: diff changeset	68	print "<h1>I'm sorry. That didn't work</h1>"
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import martin.trojer@nokia.com parents: diff changeset	69	print "<p>An error occurred while attempting to write the file:"
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import martin.trojer@nokia.com parents: diff changeset	70	print "<p>", escape(error)
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import martin.trojer@nokia.com parents: diff changeset	71	else:
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import martin.trojer@nokia.com parents: diff changeset	72	# Use a redirect directive, to avoid "reload page" problems
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import martin.trojer@nokia.com parents: diff changeset	73	print "<head>"
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import martin.trojer@nokia.com parents: diff changeset	74	s = '<meta http-equiv="refresh" content="1; URL=%s">'
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import martin.trojer@nokia.com parents: diff changeset	75	print s % (self.scripturl + "?cmd=view&page=" + self.name)
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import martin.trojer@nokia.com parents: diff changeset	76	print "<head>"
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import martin.trojer@nokia.com parents: diff changeset	77	print "<h1>OK</h1>"
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import martin.trojer@nokia.com parents: diff changeset	78	print "<p>If nothing happens, please click here:",
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import martin.trojer@nokia.com parents: diff changeset	79	print self.mklink("view", self.name, self.name)
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import martin.trojer@nokia.com parents: diff changeset	80
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import martin.trojer@nokia.com parents: diff changeset	81	def cmd_new(self, form):
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import martin.trojer@nokia.com parents: diff changeset	82	self.cmd_edit(form, label="Create")
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import martin.trojer@nokia.com parents: diff changeset	83
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import martin.trojer@nokia.com parents: diff changeset	84	def iswikiword(self, word):
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import martin.trojer@nokia.com parents: diff changeset	85	return re.match("[A-Z][a-z]+([A-Z][a-z]*)+", word)
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import martin.trojer@nokia.com parents: diff changeset	86
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import martin.trojer@nokia.com parents: diff changeset	87	def splitwikiword(self, word):
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import martin.trojer@nokia.com parents: diff changeset	88	chars = []
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import martin.trojer@nokia.com parents: diff changeset	89	for c in word:
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import martin.trojer@nokia.com parents: diff changeset	90	if chars and c.isupper():
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import martin.trojer@nokia.com parents: diff changeset	91	chars.append(' ')
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import martin.trojer@nokia.com parents: diff changeset	92	chars.append(c)
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import martin.trojer@nokia.com parents: diff changeset	93	return "".join(chars)
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import martin.trojer@nokia.com parents: diff changeset	94
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import martin.trojer@nokia.com parents: diff changeset	95	def mkfile(self, name=None):
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import martin.trojer@nokia.com parents: diff changeset	96	if name is None:
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import martin.trojer@nokia.com parents: diff changeset	97	name = self.name
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import martin.trojer@nokia.com parents: diff changeset	98	return os.path.join(self.homedir, name + ".txt")
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import martin.trojer@nokia.com parents: diff changeset	99
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import martin.trojer@nokia.com parents: diff changeset	100	def mklink(self, cmd, page, text):
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import martin.trojer@nokia.com parents: diff changeset	101	link = self.scripturl + "?cmd=" + cmd + "&page=" + page
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import martin.trojer@nokia.com parents: diff changeset	102	return '<a href="%s">%s</a>' % (link, text)
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import martin.trojer@nokia.com parents: diff changeset	103
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import martin.trojer@nokia.com parents: diff changeset	104	def load(self):
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import martin.trojer@nokia.com parents: diff changeset	105	try:
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import martin.trojer@nokia.com parents: diff changeset	106	f = open(self.mkfile())
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import martin.trojer@nokia.com parents: diff changeset	107	data = f.read().strip()
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import martin.trojer@nokia.com parents: diff changeset	108	f.close()
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import martin.trojer@nokia.com parents: diff changeset	109	except IOError:
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import martin.trojer@nokia.com parents: diff changeset	110	data = ""
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import martin.trojer@nokia.com parents: diff changeset	111	self.data = data
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import martin.trojer@nokia.com parents: diff changeset	112
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import martin.trojer@nokia.com parents: diff changeset	113	def store(self):
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import martin.trojer@nokia.com parents: diff changeset	114	data = self.data
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import martin.trojer@nokia.com parents: diff changeset	115	try:
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import martin.trojer@nokia.com parents: diff changeset	116	f = open(self.mkfile(), "w")
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import martin.trojer@nokia.com parents: diff changeset	117	f.write(data)
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import martin.trojer@nokia.com parents: diff changeset	118	if data and not data.endswith('\n'):
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import martin.trojer@nokia.com parents: diff changeset	119	f.write('\n')
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import martin.trojer@nokia.com parents: diff changeset	120	f.close()
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import martin.trojer@nokia.com parents: diff changeset	121	return ""
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import martin.trojer@nokia.com parents: diff changeset	122	except IOError, err:
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import martin.trojer@nokia.com parents: diff changeset	123	return "IOError: %s" % str(err)

author	martin.trojer@nokia.com
	Fri, 31 Jul 2009 15:01:17 +0100
changeset 1	2fb8b9db1c86
permissions	-rw-r--r--