Manual Python 3.0 fixups
[geekigeeki.git] / geekigeeki.py
index 8bb4d366eabde261e4fdb104dcb7a3c73e1d3083..a9aa019400d5e166e662668def9a1c8fd6ba7bec 100755 (executable)
@@ -1,9 +1,9 @@
-#!/usr/bin/python
+#!/usr/bin/python3.0
 # -*- coding: utf-8 -*-
 #
 # Copyright 1999, 2000 Martin Pool <mbp@humbug.org.au>
 # Copyright 2002 Gerardo Poggiali
-# Copyright 2007, 2008 Bernardo Innocenti <bernie@codewiz.org>
+# Copyright 2007, 2008 Bernie Innocenti <bernie@codewiz.org>
 #
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
@@ -31,8 +31,9 @@ from os import path, environ
 word_re = re.compile(r"^\b((([A-Z][a-z0-9]+){2,}/)*([A-Z][a-z0-9]+){2,})\b$")
 # FIXME: we accept stuff like foo/../bar and we shouldn't
 file_re = re.compile(r"^\b([A-Za-z0-9_\-][A-Za-z0-9_\.\-/]*)\b$")
-img_re = re.compile(r"^.*\.(png|gif|jpg|jpeg)$", re.IGNORECASE)
+img_re = re.compile(r"^.*\.(png|gif|jpg|jpeg|bmp|ico)$", re.IGNORECASE)
 url_re = re.compile(r"^[a-z]{3,8}://[^\s'\"]+\S$")
+link_re = re.compile("(?:\[\[|{{)([^\s\|]+)(?:\s*\|\s*([^\]]+)|)(?:\]\]|}})")
 
 title_done = False
 
@@ -58,7 +59,7 @@ def get_hostname(addr):
     try:
         from socket import gethostbyaddr
         return gethostbyaddr(addr)[0] + ' (' + addr + ')'
-    except Exception, er:
+    except Exception as er:
         return addr
 
 def relative_url(pathname, privileged=False):
@@ -75,19 +76,19 @@ def permalink(s):
 
 # Formatting stuff --------------------------------------------------
 def emit_header(mime_type="text/html"):
-    print "Content-type: " + mime_type + "; charset=utf-8\n"
+    print("Content-type: " + mime_type + "; charset=utf-8\n")
 
 def send_guru(msg_text, msg_type):
     if not msg_text: return
-    print '<pre id="guru" onclick="this.style.display = \'none\'" class="' + msg_type + '">'
+    print('<pre id="guru" onclick="this.style.display = \'none\'" class="' + msg_type + '">')
     if msg_type == 'error':
-        print '    Software Failure.  Press left mouse button to continue.\n'
-    print msg_text
+        print('    Software Failure.  Press left mouse button to continue.\n')
+    print(msg_text)
     if msg_type == 'error':
-        print '      Guru Meditation #DEADBEEF.ABADC0DE'
-    print '</pre>'
+        print('\n      Guru Meditation #DEADBEEF.ABADC0DE')
+    print('</pre>')
     # FIXME: This little JS snippet is harder to pass than ACID 3.0 
-    print """
+    print("""
     <script language="JavaScript" type="text/javascript">
         var guru = document.getElementById('guru');
         // Firefox 2.0 doesn't take border-color, but returns border-top-color fine
@@ -107,61 +108,85 @@ def send_guru(msg_text, msg_type):
             //window.alert("enabled! color='" + color + "'");
             guruOn();
         }
-    </script>"""
+    </script>""")
 
-def send_title(name, text="Limbo", msg_text=None, msg_type='error'):
+def send_title(name, text="Limbo", msg_text=None, msg_type='error', writable=False):
     global title_done
     if title_done: return
 
     # Head
     emit_header()
-    print '<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"'
-    print '  "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">'
-    print '<html xmlns="http://www.w3.org/1999/xhtml" lang="en" xml:lang="en">'
+    print('<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"')
+    print('  "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">')
+    print('<html xmlns="http://www.w3.org/1999/xhtml" lang="en" xml:lang="en">')
 
     site_name = globals().get('site_name', 'Unconfigured Site')
-    print "<head><title>%s: %s</title>" % (site_name, text)
-    print ' <meta http-equiv="Content-Type" content="application/xhtml+xml; charset=utf-8" />'
+    print("<head><title>%s: %s</title>" % (site_name, text))
+    print(' <meta http-equiv="Content-Type" content="application/xhtml+xml; charset=utf-8" />')
     if not name:
-        print ' <meta name="robots" content="noindex,nofollow" />'
-    for css in css_url:
-        print ' <link rel="stylesheet" type="text/css" href="%s" />' % relative_url(css)
-    print '</head>'
+        print(' <meta name="robots" content="noindex,nofollow" />')
+
+    for meta in meta_urls:
+        http_equiv, content = meta
+        print(' <meta http-equiv="%s" content="%s" />' % (http_equiv, relative_url(content)))
+
+    for link in link_urls:
+        rel, href = link
+        print(' <link rel="%s" href="%s" />' % (rel, relative_url(href)))
+
+    if name and writable and privileged_url is not None:
+        print(' <link rel="alternate" type="application/x-wiki" title="Edit this page" href="%s" />' \
+            % (privileged_path() + '?edit=' + name))
+
+    if history_url is not None:
+        print(' <link rel="alternate" type="application/rss+xml" title="RSS" href="%s" />' \
+            % relative_url(history_url + '?a=rss'))
+
+    print('</head>')
 
     # Body
-    if name and privileged_url is not None:
-        print '<body ondblclick="location.href=\'' + privileged_path() + '?edit=' + name + '\'">'
+    if name and writable and privileged_url is not None:
+        print('<body ondblclick="location.href=\'' + privileged_path() + '?edit=' + name + '\'">')
     else:
-        print '<body>'
+        print('<body>')
 
     title_done = True
     send_guru(msg_text, msg_type)
 
     # Navbar
-    print '<div class="nav">'
+    print('<div class="nav">')
     if name:
-        print '  <b>' + link_tag('?fullsearch=' + name, text, 'navlink') + '</b> '
+        print('  <b>' + link_tag('?fullsearch=' + name, text, 'navlink') + '</b> ')
     else:
-        print '  <b>' + text + '</b> '
-    print ' | ' + link_tag('FrontPage', 'Front Page', 'navlink')
-    print ' | ' + link_tag('FindPage', 'Find Page', 'navlink')
+        print('  <b>' + text + '</b> ')
+    print(' | ' + link_tag('FrontPage', 'Home', 'navlink'))
+    print(' | ' + link_tag('FindPage', 'Find Page', 'navlink'))
     if 'history_url' in globals():
-        print ' | <a href="' + history_url + '" class="navlink">Recent Changes</a>'
+        print(' | <a href="' + relative_url(history_url) + '" class="navlink">Recent Changes</a>')
         if name:
-            print ' | <a href="' + history_url + '?a=history;f=' + name + '" class="navlink">Page History</a>'
+            print(' | <a href="' + relative_url(history_url + '?a=history;f=' + name) + '" class="navlink">Page History</a>')
 
     if name:
-        print ' | ' + link_tag('?raw=' + name, 'Raw Text', 'navlink')
+        print(' | ' + link_tag('?raw=' + name, 'Raw Text', 'navlink'))
         if privileged_url is not None:
-            print ' | ' + link_tag('?edit=' + name, 'Edit Page', 'navlink', privileged=True)
+            if writable:
+                print(' | ' + link_tag('?edit=' + name, 'Edit', 'navlink', privileged=True))
+            else:
+                print(' | ' + link_tag(name, 'Login', 'navlink', privileged=True))
+
     else:
-        print ' | <i>Immutable Page</i>'
+        print(' | <i>Immutable Page</i>')
 
     user = remote_user()
     if user != 'AnonymousCoward':
-        print ' | <span class="login"><i>logged in as <b>' + cgi.escape(user) + '</b></i></span>'
+        print(' | <span class="login"><i>logged in as <b>' + cgi.escape(user) + '</b></i></span>')
+
+    print('<hr /></div>')
 
-    print '<hr /></div>'
+def send_httperror(status="403 Not Found", query=""):
+    print("Status: %s" % status)
+    send_title(None, msg_text=("%s: on query '%s'" % (status, query)))
+    send_footer(None)
 
 def link_tag(params, text=None, ss_class=None, privileged=False):
     if text is None:
@@ -195,13 +220,13 @@ def handle_fullsearch(needle):
     hits.sort()
     hits.reverse()
 
-    print "<ul>"
+    print("<ul>")
     for (count, page_name) in hits:
-        print '<li><p>' + Page(page_name).link_to()
-        print ' . . . . ' + `count`
-        print ['match', 'matches'][count != 1]
-        print '</p></li>'
-    print "</ul>"
+        print('<li><p>' + Page(page_name).link_to())
+        print(' . . . . ' + repr(count))
+        print(['match', 'matches'][count != 1])
+        print('</p></li>')
+    print("</ul>")
 
     print_search_stats(len(hits), len(all_pages))
 
@@ -211,33 +236,41 @@ def handle_titlesearch(needle):
 
     needle_re = re.compile(needle, re.IGNORECASE)
     all_pages = page_list()
-    hits = filter(needle_re.search, all_pages)
+    hits = list(filter(needle_re.search, all_pages))
 
-    print "<ul>"
+    print("<ul>")
     for filename in hits:
-        print '<li><p>' + Page(filename).link_to() + "</p></li>"
-    print "</ul>"
+        print('<li><p>' + Page(filename).link_to() + "</p></li>")
+    print("</ul>")
 
     print_search_stats(len(hits), len(all_pages))
 
 def print_search_stats(hits, searched):
-    print "<p>%d hits out of %d pages searched.</p>" % (hits, searched)
+    print("<p>%d hits out of %d pages searched.</p>" % (hits, searched))
 
 def handle_raw(pagename):
+    if not file_re.match(pagename):
+        send_httperror("403 Forbidden", pagename)
+        return
+
     Page(pagename).send_raw()
 
 def handle_edit(pagename):
+    if not file_re.match(pagename):
+        send_httperror("403 Forbidden", pagename)
+        return
+
     pg = Page(pagename)
     if 'save' in form:
         if form['file'].value:
-            pg.save(form['file'].file.read())
+            pg.save(form['file'].file.read(), form['changelog'].value)
         else:
-            pg.save(form['savetext'].value.replace('\r\n', '\n'))
-        pg.send_page()
+            pg.save(form['savetext'].value.replace('\r\n', '\n'), form['changelog'].value)
+        pg.format()
     elif 'cancel' in form:
         pg.msg_text = 'Editing canceled'
         pg.msg_type = 'notice'
-        pg.send_page()
+        pg.format()
     else: # preview or edit
         text = None
         if 'preview' in form:
@@ -245,87 +278,29 @@ def handle_edit(pagename):
         pg.send_editor(text)
 
 def make_index_key():
-    links = map(lambda ch: '<a href="#%s">%s</a>' % (ch, ch), 'abcdefghijklmnopqrstuvwxyz')
+    links = ['<a href="#%s">%s</a>' % (ch, ch) for ch in 'abcdefghijklmnopqrstuvwxyz']
     return '<p><center>'+ ' | '.join(links) + '</center></p>'
 
-def page_list():
-    return filter(word_re.match, os.listdir(data_dir))
+def page_list(dir = None, re = word_re):
+    return sorted(filter(re.match, os.listdir(dir or data_dir)))
 
 def send_footer(name, mod_string=None):
     if globals().get('debug_cgi', False):
         cgi.print_arguments()
         cgi.print_form(form)
         cgi.print_environ()
-    print '<div id="footer"><hr />'
-    print ('<p class="copyright"><span class="benchmark">generated in %0.3fs</span>' +
-        ' by <a href="http://www.codewiz.org/wiki/GeekiGeeki">GeekiGeeki</a>' +
-        ' version %s</p>') % (clock() - start_time, __version__)
+    print('''
+<div id="footer"><hr />
+<p class="copyright">
+<a rel="license" href="http://creativecommons.org/licenses/by-sa/3.0/"><img class="license" alt="Creative Commons License" src="http://i.creativecommons.org/l/by-sa/3.0/80x15.png" /></a>
+<span class="benchmark">generated in %0.3fs</span> by <a href="http://www.codewiz.org/wiki/GeekiGeeki">GeekiGeeki</a> version %s
+</p>
+''' % (clock() - start_time, __version__))
     if mod_string:
-        print '<p class="modified">last modified %s</p>' % mod_string
-    print '</div></body></html>'
-
-# Macros ------------------------------------------------------------
-def _macro_TitleSearch(*vargs):
-    return _macro_search("titlesearch")
-
-def _macro_FullSearch(*vargs):
-    return _macro_search("fullsearch")
-
-def _macro_search(type):
-    default = ''
-    if 'value' in form:
-        default = form['value'].value
-    return """<form method="get"><input name="%s" size="30" value="%s" /><input type="submit" value="Search" /></form>""" % (type, default)
-
-def _macro_WordIndex(*vargs):
-    s = make_index_key()
-    pages = list(page_list())
-    map = {}
-    word_re = re.compile('[A-Z][a-z]+')
-    for name in pages:
-        for word in word_re.findall(name):
-            try:
-                map[word].append(name)
-            except KeyError:
-                map[word] = [name]
-
-    all_words = map.keys()
-    all_words.sort()
-    last_letter = None
-    # set title
-    for word in all_words:
-        letter = word[0].lower()
-        if letter != last_letter:
-            s = s + '; <a name="%s"><h3>%s</h3></a>' % (letter, letter)
-            last_letter = letter
-
-        s = s + '<b>%s</b><ul>' % word
-        links = map[word]
-        links.sort()
-        last_page = None
-        for name in links:
-            if name == last_page: continue
-            s = s + '<li>' + Page(name).link_to()
-        s = s + '</ul>'
-    return s
-
-
-def _macro_TitleIndex(*vargs):
-    s = make_index_key()
-    pages = list(page_list())
-    pages.sort()
-    current_letter = None
-    for name in pages:
-        letter = name[0].lower()
-        if letter != current_letter:
-            s += '<a name="%s"><h3>%s</h3></a>' % (letter, letter)
-            current_letter = letter
-        else:
-            s += '<br />'
-        s += Page(name).link_to()
-    return s
+        print('<p class="modified">last modified %s</p>' % mod_string)
+    print('</div></body></html>')
 
-class PageFormatter:
+class WikiFormatter:
     """Object that turns Wiki markup into HTML.
 
     All formatting commands can be parsed one line at a time, though
@@ -334,7 +309,7 @@ class PageFormatter:
     def __init__(self, raw):
         self.raw = raw
         self.h_level = 0
-        self.in_pre = self.in_table = self.in_li = False
+        self.in_pre = self.in_html = self.in_table = self.in_li = False
         self.in_header = True
         self.list_indents = []
         self.tr_cnt = 0
@@ -385,31 +360,69 @@ class PageFormatter:
         else:
             return '<a href="%s" rel="nofollow" class="external">%s</a>' % (word, word)
 
-    def _hurl_repl(self, word):
-        m = re.compile("\[\[([^ \t\n\r\f\v\|]+)(?:\s*\|\s*([^\]]+)|)\]\]").match(word)
+    def _macro_repl(self, word):
+        m = re.compile("\<\<([^\s\|\>]+)(?:\s*\|\s*([^\>]+)|)\>\>").match(word)
         name = m.group(1)
-        descr = m.group(2) or name
+        argv = [name]
+        if m.group(2):
+            argv.extend(m.group(2).split('|'))
+        argv = list(map(str.strip, argv))
 
         macro = globals().get('_macro_' + name)
+        if not macro:
+            try:
+                exec(open("macros/" + name + ".py").read(), globals())
+            except IOError as er:
+                if er.errno == errno.ENOENT:
+                    pass
+            macro = globals().get('_macro_' + name)
         if macro:
-            return macro(name, descr)
-        elif img_re.match(name):
-            name = relative_url(name)
-            # The "extthumb" nonsense works around a limitation of the HTML block model
-            return '<div class="extthumb"><div class="thumb"><a href="%s"><img border="0" src="%s" alt="%s" /></a><div class="caption">%s</div></div></div>' % (name, name, descr, descr)
+            return macro(argv)
+        else:
+            return '<strong class="error">&lt;&lt;' + '|'.join(argv) + '&gt;&gt;</strong>'
+
+    def _hurl_repl(self, word):
+        m = link_re.match(word)
+        name = m.group(1)
+        descr = m.group(2)
+        if descr is None:
+            descr = name
+        elif img_re.match(m.group(2)):
+            descr = '<img border="0" src="' + descr + '" />'
+
+        return link_tag(name, descr, 'wikilink')
+
+    def _inl_repl(self, word):
+        m = link_re.match(word)
+        name = m.group(1)
+        descr = m.group(2) or name
+        name = relative_url(name)
+        argv = descr.split('|')
+        descr = argv.pop(0)
+
+        if argv:
+            args = '?' + '&amp;'.join(argv)
         else:
-            if img_re.match(descr):
-                descr = '<img border="0" src="' + descr + '" />'
+            args = ''
 
-            return link_tag(name, descr, 'wikilink')
+        if descr:
+            # The "extthumb" nonsense works around a limitation of the HTML block model
+            return '<div class="extthumb"><div class="thumb"><a href="%s"><img border="0" src="%s" alt="%s" /></a><div class="caption">%s</div></div></div>' \
+                    % (name, name + args, descr, descr)
+        else:
+            return '<a href="%s"><img border="0" src="%s" /></a>' % (name, name + args)
 
     def _email_repl(self, word):
         return '<a href="mailto:%s">%s</a>' % (word, word)
 
     def _html_repl(self, word):
+        self.in_html += 1
         return word; # Pass through
 
     def _ent_repl(self, s):
+        if self.in_html and s == '>':
+            self.in_html -= 1
+            return '>'
         return {'&': '&amp;',
                 '<': '&lt;',
                 '>': '&gt;'}[s]
@@ -480,14 +493,14 @@ class PageFormatter:
         return res
 
     def replace(self, match):
-        for type, hit in match.groupdict().items():
+        for type, hit in list(match.groupdict().items()):
             if hit:
                 return getattr(self, '_' + type + '_repl')(hit)
         else:
-            raise "Can't handle match " + `match`
+            raise "Can't handle match " + repr(match)
 
     def print_html(self):
-        print '<div class="wiki"><p>'
+        print('<div class="wiki"><p>')
 
         # For each line, we scan through looking for magic
         # strings, outputting verbatim any intervening text
@@ -499,20 +512,26 @@ class PageFormatter:
             + r"|(?P<tit>\={2,6})"
             + r"|(?P<br>\\\\)"
             + r"|(?P<rule>^-{3,})"
-            + r"|(?P<html><(/|)(div|span|iframe)[^<>]*>)"
-            + r"|(?P<ent>[<>&])"
             + r"|(?P<hi>\b(FIXME|TODO|DONE)\b)"
 
             # Links
-            + r"|(?P<img>\b[a-zA-Z0-9_-]+\.(png|gif|jpg|jpeg|bmp))"
+            + r"|(?P<macro>\<\<([^\s\|\>]+)(?:\s*\|\s*([^\>]+)|)\>\>)"
+            + r"|(?P<hurl>\[\[([^\s\|]+)(?:\s*\|\s*([^\]]+)|)\]\])"
+
+            # Inline HTML
+            + r"|(?P<html><(/|)(br|hr|div|span|form|iframe|input|textarea|a|img|h[1-5])[^>]*>)"
+            + r"|(?P<ent>[<>&])"
+
+            # Auto links (LEGACY)
+            + r"|(?P<img>\b[a-zA-Z0-9_/-]+\.(png|gif|jpg|jpeg|bmp|ico))"
             + r"|(?P<word>\b(?:[A-Z][a-z]+){2,}\b)"
-            + r"|(?P<hurl>\[\[([^ \t\n\r\f\v\|]+)(?:\s*\|\s*([^\]]+)|)\]\])"
             + r"|(?P<url>(http|https|ftp|mailto)\:[^\s'\"]+\S)"
             + r"|(?P<email>[-\w._+]+\@[\w.-]+)"
 
             # Lists, divs, spans
             + r"|(?P<li>^\s+[\*#] +)"
             + r"|(?P<pre>\{\{\{|\s*\}\}\})"
+            + r"|(?P<inl>\{\{([^\s\|]+)(?:\s*\|\s*([^\]]+)|)\}\})"
 
             # Tables
             + r"|(?P<tr>^\s*\|\|(=|)\s*)"
@@ -528,7 +547,7 @@ class PageFormatter:
         indent_re = re.compile(r"^\s*")
         tr_re = re.compile(r"^\s*\|\|")
         eol_re = re.compile(r"\r?\n")
-        for self.line in eol_re.split(self.raw.expandtabs()):
+        for self.line in eol_re.split(str(self.raw).expandtabs()):
             # Skip ACLs
             if self.in_header:
                 if self.line.startswith('#'):
@@ -536,23 +555,23 @@ class PageFormatter:
                 self.in_header = False
 
             if self.in_pre:
-                print re.sub(pre_re, self.replace, self.line)
+                print(re.sub(pre_re, self.replace, self.line))
             else:
                 if self.in_table and not tr_re.match(self.line):
                     self.in_table = False
-                    print '</tbody></table><p>'
+                    print('</tbody></table><p>')
 
                 if blank_re.match(self.line):
-                    print '</p><p>'
+                    print('</p><p>')
                 else:
                     indent = indent_re.match(self.line)
-                    print self._indent_to(len(indent.group(0)))
-                    print re.sub(scan_re, self.replace, self.line)
+                    print(self._indent_to(len(indent.group(0))), end=' ')
+                    print(re.sub(scan_re, self.replace, self.line))
 
-        if self.in_pre: print '</pre>'
-        if self.in_table: print '</tbody></table><p>'
-        print self._undent()
-        print '</p></div>'
+        if self.in_pre: print('</pre>')
+        if self.in_table: print('</tbody></table><p>')
+        print(self._undent())
+        print('</p></div>')
 
 class Page:
     def __init__(self, page_name):
@@ -564,17 +583,17 @@ class Page:
         # look for the end of words and the start of a new word and insert a space there
         return re.sub('([a-z])([A-Z])', r'\1 \2', self.page_name)
 
-    def _text_filename(self):
+    def _filename(self):
         return path.join(data_dir, self.page_name)
 
     def _tmp_filename(self):
-        return path.join(data_dir, ('#' + self.page_name.replace('/','_') + '.' + `os.getpid()` + '#'))
+        return path.join(data_dir, ('#' + self.page_name.replace('/','_') + '.' + repr(os.getpid()) + '#'))
 
     def exists(self):
         try:
-            os.stat(self._text_filename())
+            os.stat(self._filename())
             return True
-        except OSError, er:
+        except OSError as er:
             if er.errno == errno.ENOENT:
                 return False
             raise er
@@ -588,20 +607,36 @@ class Page:
 
     def get_raw_body(self):
         try:
-            return open(self._text_filename(), 'rb').read()
-        except IOError, er:
+            return open(self._filename(), 'rb').read()
+        except IOError as er:
             if er.errno == errno.ENOENT:
                 return '' # just doesn't exist, use default
             if er.errno == errno.EISDIR:
-                return 'DIR'
+                return self.format_dir()
             raise er
 
+    def format_dir(self):
+        out = '== '
+        path = ''
+        for dir in self.page_name.split('/'):
+            path = (path + '/' + dir) if path else dir
+            out += '[[' + path + '|' + dir + ']]/'
+        out += ' ==\n'
+        for file in page_list(self._filename(), file_re):
+            if img_re.match(file):
+                if image_maxwidth:
+                    maxwidth_arg = '|maxwidth=' + str(image_maxwidth)
+                out += '{{' + self.page_name + '/' + file + '|' + file + maxwidth_arg + '}}\n'
+            else:
+                out += ' * [[' + self.page_name + '/' + file + ']]\n'
+        return out
     def get_attrs(self):
         if 'attrs' in self.__dict__:
             return self.attrs
         self.attrs = {}
         try:
-            file = open(self._text_filename(), 'rt')
+            file = open(self._filename(), 'rt')
             attr_re = re.compile(r"^#(\S*)(.*)$")
             for line in file:
                 m = attr_re.match(line)
@@ -609,8 +644,8 @@ class Page:
                     break
                 self.attrs[m.group(1)] = m.group(2).strip()
                 #print "bernie: attrs[" + m.group(1) + "] = " + m.group(2) + "<br>\n"
-        except IOError, er:
-            if er.errno != errno.ENOENT:
+        except IOError as er:
+            if er.errno != errno.ENOENT and er.errno != errno.EISDIR:
                 raise er
         return self.attrs
 
@@ -627,7 +662,7 @@ class Page:
                 if user == remote_user() or user == "All":
                     return action in perms.split(',')
             return False
-        except Exception, er:
+        except Exception as er:
             if acl:
                 self.msg_text = 'Illegal acl line: ' + acl
         return default
@@ -638,27 +673,29 @@ class Page:
     def can_read(self):
         return self.can("read", True)
 
-    def send_page(self):
-        page_name = None
-        if self.can_write():
-            page_name = self.page_name
-
-        #css foo.css bar.css
-        global css_url
-        css_url = self.get_attr("css", "").split() + css_url
-
-        send_title(page_name, self.split_title(), msg_text=self.msg_text, msg_type=self.msg_type)
+    def send_naked(self):
         if self.can_read():
-            PageFormatter(self.get_raw_body()).print_html()
+            WikiFormatter(self.get_raw_body()).print_html()
         else:
             send_guru("Read access denied by ACLs", "notice")
-        send_footer(page_name, self._last_modified())
+
+    def format(self):
+        #css foo.css
+        value = self.get_attr("css", None)
+        if value:
+            global link_urls
+            link_urls += [ [ "stylesheet", value ] ]
+
+        send_title(self.page_name, self.split_title(),
+            msg_text=self.msg_text, msg_type=self.msg_type, writable=self.can_write())
+        self.send_naked()
+        send_footer(self.page_name, self._last_modified())
 
     def _last_modified(self):
         try:
             from time import localtime, strftime
-            modtime = localtime(os.stat(self._text_filename())[stat.ST_MTIME])
-        except OSError, er:
+            modtime = localtime(os.stat(self._filename())[stat.ST_MTIME])
+        except OSError as er:
             if er.errno != errno.ENOENT:
                 raise er
             return None
@@ -674,50 +711,67 @@ class Page:
         if 'file' in form:
             file = form['file'].value
 
-        print ('<p><b>Editing ' + self.page_name
+        print(('<p><b>Editing ' + self.page_name
             + ' for ' + cgi.escape(remote_user())
             + ' from ' + cgi.escape(get_hostname(remote_host()))
-            + '</b></p>')
-        print '<div class="editor"><form method="post" enctype="multipart/form-data" action="%s">' % relative_url(self.page_name)
-        print '<input type="hidden" name="edit" value="%s">' % (self.page_name)
-        print '<textarea wrap="off" spellcheck="true" id="editor" name="savetext" rows="17" cols="100">%s</textarea>' % (preview or self.get_raw_body())
-        print 'Or upload a file: <input type="file" name="file" value="%s" />' % file
-        print """
+            + '</b></p>'))
+        print('<div class="editor"><form name="editform" method="post" enctype="multipart/form-data" action="%s">' % relative_url(self.page_name))
+        print('<input type="hidden" name="edit" value="%s">' % (self.page_name))
+        print('<input type="input" id="editor" name="changelog" value="Edit page %s" accesskey="c" /><br />' % (self.page_name))
+        print('<textarea wrap="off" spellcheck="true" id="editor" name="savetext" rows="17" cols="100" accesskey="e">%s</textarea>' % cgi.escape(preview or self.get_raw_body()))
+        print('<label for="file" accesskey="u">Or Upload a file:</label> <input type="file" name="file" value="%s" />' % file)
+        print("""
             <br />
-            <input type="submit" name="save" value="Save" />
-            <input type="submit" name="preview" value="Preview" />
+            <input type="submit" name="save" value="Save" accesskey="s">
+            <input type="submit" name="preview" value="Preview" accesskey="p" />
             <input type="reset" value="Reset" />
             <input type="submit" name="cancel" value="Cancel" />
             <br />
-            </form></div>"""
-        print "<p>" + Page('EditingTips').link_to() + "</p>"
+            </form></div>
+            <script language="javascript">
+            <!--
+            document.editform.savetext.focus()
+            //-->
+            </script>
+            """)
+        print("<p>" + Page('EditingTips').link_to() + "</p>")
         if preview:
-            print "<div class='preview'>"
-            PageFormatter(preview).print_html()
-            print "</div>"
+            print("<div class='preview'>")
+            WikiFormatter(preview).print_html()
+            print("</div>")
         send_footer(self.page_name)
 
     def send_raw(self, mimetype='text/plain'):
         if self.can_read():
             body = self.get_raw_body()
             emit_header(mimetype)
-            print body
+            print(body)
         else:
             send_title(None, msg_text='Read access denied by ACLs', msg_type='notice')
 
+    def send_image(self, mimetype, args=[]):
+        if 'maxwidth' in args:
+            import subprocess
+            emit_header(mimetype)
+            sys.stdout.flush()
+            subprocess.check_call(['gm', 'convert', self._filename(),
+                '-scale', args['maxwidth'].value + ' >', '-'])
+        else:
+            self.send_raw(mimetype)
+
     def _write_file(self, data):
         tmp_filename = self._tmp_filename()
         open(tmp_filename, 'wb').write(data)
-        name = self._text_filename()
+        name = self._filename()
         if os.name == 'nt':
             # Bad Bill!  POSIX rename ought to replace. :-(
             try:
                 os.remove(name)
-            except OSError, er:
+            except OSError as er:
                 if er.errno != errno.ENOENT: raise er
         os.rename(tmp_filename, name)
 
-    def save(self, newdata):
+    def save(self, newdata, changelog):
         if not self.can_write():
             self.msg_text = 'Write access denied by ACLs'
             self.msg_type = 'error'
@@ -730,7 +784,8 @@ class Page:
             cmd = ( post_edit_hook
                 + " '" + data_dir + '/' + self.page_name
                 + "' '" + remote_user()
-                + "' '" + remote_host() + "'"
+                + "' '" + remote_host()
+               + "' '" + changelog + "'"
             )
             out = os.popen(cmd)
             output = out.read()
@@ -746,7 +801,7 @@ class Page:
 
 # Main ---------------------------------------------------------------
 try:
-    execfile("geekigeeki.conf.py")
+    exec(open("geekigeeki.conf.py").read())
     form = cgi.FieldStorage()
 
     for cmd in form:
@@ -763,16 +818,21 @@ try:
 
         if file_re.match(query):
             if word_re.match(query):
-                Page(query).send_page()
+                Page(query).format()
             else:
                 from mimetypes import MimeTypes
                 type, encoding = MimeTypes().guess_type(query)
-                type = type or 'text/plain'
-                Page(query).send_raw(mimetype=type)
+                #type = type or 'text/plain'
+                #Page(query).send_raw(mimetype=type)
+                if type:
+                    if type.startswith('image/'):
+                        Page(query).send_image(mimetype=type,args=form)
+                    else:
+                        Page(query).send_raw(mimetype=type)
+                else:
+                    Page(query).format()
         else:
-            print "Status: 404 Not Found"
-            send_title(None, msg_text='Can\'t work out query: ' + query)
-            send_footer(None)
+            send_httperror("403 Forbidden", query)
 except Exception:
     import traceback
     msg_text = traceback.format_exc()