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File Content: `wiki.py`

"""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)
Name	Size	Permission
README	437 bytes	0644
cgi0.sh	154 bytes	0755
cgi1.py	401 bytes	0755
cgi1.pyc	279 bytes	0644
cgi1.pyo	279 bytes	0644
cgi2.py	471 bytes	0755
cgi2.pyc	729 bytes	0644
cgi2.pyo	729 bytes	0644
cgi3.py	152 bytes	0755
cgi3.pyc	326 bytes	0644
cgi3.pyo	326 bytes	0644
wiki.py	4037 bytes	0644
wiki.pyc	5377 bytes	0644
wiki.pyo	5377 bytes	0644
File Content: wiki.py

File Content: `wiki.py`
