symbian-qemu-0.9.1-12/python-2.6.1/Demo/cgi/wiki.py
author Gareth Stockwell <gareth.stockwell@accenture.com>
Wed, 22 Sep 2010 15:40:40 +0100
branchgraphics-phase-3
changeset 111 345f1c88c950
parent 1 2fb8b9db1c86
permissions -rw-r--r--
Fixes to syborg-graphicswrapper.vcproj These changes allow syborg-graphicswrapper to link against the hostthreadadapter and khronosapiwrapper libraries built by the graphics.simulator component. The .vcproj file uses relative paths, which requires that the following three packages are laid out as follows: os/ graphics adapt/ graphics.simulator qemu

"""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)