diff options
| author | cinap_lenrek <cinap_lenrek@localhost> | 2011-05-03 11:25:13 +0000 |
|---|---|---|
| committer | cinap_lenrek <cinap_lenrek@localhost> | 2011-05-03 11:25:13 +0000 |
| commit | 458120dd40db6b4df55a4e96b650e16798ef06a0 (patch) | |
| tree | 8f82685be24fef97e715c6f5ca4c68d34d5074ee /sys/src/cmd/python/Demo/cgi/wiki.py | |
| parent | 3a742c699f6806c1145aea5149bf15de15a0afd7 (diff) | |
add hg and python
Diffstat (limited to 'sys/src/cmd/python/Demo/cgi/wiki.py')
| -rw-r--r-- | sys/src/cmd/python/Demo/cgi/wiki.py | 123 |
1 files changed, 123 insertions, 0 deletions
diff --git a/sys/src/cmd/python/Demo/cgi/wiki.py b/sys/src/cmd/python/Demo/cgi/wiki.py new file mode 100644 index 000000000..ee094a8ef --- /dev/null +++ b/sys/src/cmd/python/Demo/cgi/wiki.py @@ -0,0 +1,123 @@ +"""Wiki main program. Imported and run by cgi3.py.""" + +import os, re, cgi, sys, tempfile +escape = cgi.escape + +def main(): + form = cgi.FieldStorage() + print "Content-type: text/html" + print + cmd = form.getvalue("cmd", "view") + page = form.getvalue("page", "FrontPage") + wiki = WikiPage(page) + method = getattr(wiki, 'cmd_' + cmd, None) or wiki.cmd_view + method(form) + +class WikiPage: + + homedir = tempfile.gettempdir() + scripturl = os.path.basename(sys.argv[0]) + + def __init__(self, name): + if not self.iswikiword(name): + raise ValueError, "page name is not a wiki word" + self.name = name + self.load() + + def cmd_view(self, form): + print "<h1>", escape(self.splitwikiword(self.name)), "</h1>" + print "<p>" + for line in self.data.splitlines(): + line = line.rstrip() + if not line: + print "<p>" + else: + print self.formatline(line) + print "<hr>" + print "<p>", self.mklink("edit", self.name, "Edit this page") + ";" + print self.mklink("view", "FrontPage", "go to front page") + "." + + def formatline(self, line): + words = [] + for word in re.split('(\W+)', line): + if self.iswikiword(word): + if os.path.isfile(self.mkfile(word)): + word = self.mklink("view", word, word) + else: + word = self.mklink("new", word, word + "*") + else: + word = escape(word) + words.append(word) + return "".join(words) + + def cmd_edit(self, form, label="Change"): + print "<h1>", label, self.name, "</h1>" + print '<form method="POST" action="%s">' % self.scripturl + s = '<textarea cols="70" rows="20" name="text">%s</textarea>' + print s % self.data + print '<input type="hidden" name="cmd" value="create">' + print '<input type="hidden" name="page" value="%s">' % self.name + print '<br>' + print '<input type="submit" value="%s Page">' % label + print "</form>" + + def cmd_create(self, form): + self.data = form.getvalue("text", "").strip() + error = self.store() + if error: + print "<h1>I'm sorry. That didn't work</h1>" + print "<p>An error occurred while attempting to write the file:" + print "<p>", escape(error) + else: + # Use a redirect directive, to avoid "reload page" problems + print "<head>" + s = '<meta http-equiv="refresh" content="1; URL=%s">' + print s % (self.scripturl + "?cmd=view&page=" + self.name) + print "<head>" + print "<h1>OK</h1>" + print "<p>If nothing happens, please click here:", + print self.mklink("view", self.name, self.name) + + def cmd_new(self, form): + self.cmd_edit(form, label="Create") + + def iswikiword(self, word): + return re.match("[A-Z][a-z]+([A-Z][a-z]*)+", word) + + def splitwikiword(self, word): + chars = [] + for c in word: + if chars and c.isupper(): + chars.append(' ') + chars.append(c) + return "".join(chars) + + def mkfile(self, name=None): + if name is None: + name = self.name + return os.path.join(self.homedir, name + ".txt") + + def mklink(self, cmd, page, text): + link = self.scripturl + "?cmd=" + cmd + "&page=" + page + return '<a href="%s">%s</a>' % (link, text) + + def load(self): + try: + f = open(self.mkfile()) + data = f.read().strip() + f.close() + except IOError: + data = "" + self.data = data + + def store(self): + data = self.data + try: + f = open(self.mkfile(), "w") + f.write(data) + if data and not data.endswith('\n'): + f.write('\n') + f.close() + return "" + except IOError, err: + return "IOError: %s" % str(err) |