added web interface code
added basic templates
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204
htman/htman.py
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204
htman/htman.py
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#!/usr/bin/python
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# -*- coding: utf-8 -*-
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"""
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$Id$
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A web interface for managing htpasswd files.
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Copyright 2010 Lars Kruse <devel@sumpfralle.de>
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This module is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This module is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with This module. If not, see <http://www.gnu.org/licenses/>.
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"""
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import htpasswd
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import bobo
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import genshi.template
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import ConfigParser
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import re
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import sys
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import os
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BASE_DIR = os.path.dirname(__file__)
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CONFIG_FILE_LOCATIONS = [os.path.join(BASE_DIR, "htman.conf"), '/etc/htman/htman.conf']
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TEMPLATES_DIR = os.path.join(BASE_DIR, 'templates')
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REGEX = {
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"username": r"[a-zA-Z0-9_\-\.]+$",
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"password": r"[a-zA-Z0-9_\-\.%\$_\;,<>=+\[\]\{\}\(\)#\'\"\/\&\*@]+$",
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"mapping": r"[a-zA-Z0-9_\-\.]+$",
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}
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# use the environment variable HTMAN_CONFIG as the config file location if the
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# variable is defined
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if "HTMAN_CONFIG" in os.environ:
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CONFIG_FILE_LOCATIONS = [os.environ["HTMAN_CONFIG"]]
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@bobo.query('')
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@bobo.query('/')
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def show_frontpage():
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values = web_defaults.copy()
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return render("frontpage.html", **values)
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@bobo.query('/admin')
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def show_files():
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values = web_defaults.copy()
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# The template expects a list of tuples: (mapping name, admin-url).
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# We assume, that the admin-url is just below the main admin URL. Thus
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# there is no need for generating a specific URL.
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values["mapping"] = [(mapping, mapping) for mapping in mapping.keys()]
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return render("list_mappings.html", **values)
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@bobo.query('/manage')
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def show_htpasswd(htname=None):
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if (htname is None) or (not htname in mapping) or (not re.match(REGEX["mapping"], htname)):
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return bobo.redirect(web_defaults["base_url"])
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else:
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# do a redirect: this allows the webserver to check the permissions for this URL
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return bobo.redirect("%smanage/%s" % (web_defaults["base_url"], str(htname)))
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# the alternative "/admin" URL allows to define super-user htaccess rules via
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# Apache's "Location" directive
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@bobo.query('/admin/:htname')
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@bobo.query('/manage/:htname')
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def manage_htpasswd(htname=None, action=None, username=None, password=None):
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values = web_defaults.copy()
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values["error"] = None
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values["success"] = None
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if (htname is None) or (not htname in mapping) or (not re.match(REGEX["mapping"], htname)):
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return bobo.redirect(web_defaults["base_url"])
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values["htname"] = htname
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htpasswd_file = mapping[htname]
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do_create_file = not os.path.isfile(htpasswd_file)
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try:
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htdb = htpasswd.HtpasswdFile(htpasswd_file, create=do_create_file)
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except IOError:
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values["error"] = "Failed to read htpasswd file"
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htdb = None
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else:
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if action is None:
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# just show the current state
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pass
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elif not username:
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values["error"] = "The username may not be empty!"
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elif not re.match(REGEX["username"], username):
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values["error"] = "The username contains invalid characters!"
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elif action == "del":
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if username in htdb.get_usernames():
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htdb.delete(username)
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htdb.save()
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values["success"] = "User removed"
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else:
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values["error"] = "The user does not exist!"
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elif not password:
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values["error"] = "The password may not be empty!"
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elif not re.match(REGEX["password"], password):
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values["error"] = "The password contains invalid characters!"
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elif action == "update":
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if username in htdb.get_usernames():
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htdb.update(username, password)
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htdb.save()
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values["success"] = "Password changed"
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else:
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values["error"] = "The user does not exist!"
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elif action == "new":
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if not username in htdb.get_usernames():
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htdb.update(username, password)
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htdb.save()
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values["success"] = "User added"
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else:
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values["error"] = "The user exists already!"
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else:
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values["error"] = "Invalid action"
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if not htdb is None:
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values["usernames"] = htdb.get_usernames()
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else:
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values["usernames"] = []
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# show the current htpasswd file
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return render("manage_users.html", **values)
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def get_config():
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config = ConfigParser.SafeConfigParser()
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for filename in CONFIG_FILE_LOCATIONS:
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if os.path.isfile(filename):
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try:
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config.read(filename)
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except IOError:
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# ignore errors
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pass
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else:
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return config
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print >>sys.stderr, "Failed to load config file from %s" % str(CONFIG_FILE_LOCATIONS)
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sys.exit(1)
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def get_mapping(config):
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try:
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mapping_file = config.get("Locations", "mapping")
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except ConfigParser.NoOptionError:
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print >>sys.stderr, "The location of the mapping file is not " \
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"defined in the config file: [Locations] -> mapping"
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sys.exit(2)
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if not os.path.isfile(mapping_file):
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print >>sys.stderr, "The mapping file does not exist: %s" \
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% str(mapping_file)
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sys.exit(2)
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# read the mapping file
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try:
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input_data = open(mapping_file, "r").readlines()
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except IOError:
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print >>sys.stderr, "Failed to open mapping file: %s" % mapping_file
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sys.exit(4)
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mapping = {}
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for line in input_data:
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if line.startswith("#"):
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continue
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if "=" in line:
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name, location = line.split("=", 1)
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name = name.strip()
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location = location.strip()
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# ignore invalid mapping names
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if re.match(REGEX["mapping"], name):
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mapping[name] = location
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return mapping
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def get_templates_dir(config):
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try:
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templates_dir = config.get("Locations", "templates")
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except ConfigParser.NoOptionError:
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# use the default
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templates_dir = TEMPLATES_DIR
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if not os.path.isdir(templates_dir):
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print >>sys.stderr, "Templates directory not found: %s" % templates_dir
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sys.exit(3)
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return os.path.abspath(templates_dir)
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def render(filename, input_data=None, **values):
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stream = loader.load(filename).generate(**values)
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if not input_data is None:
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stream |= genshi.filters.HTMLFormFiller(data=input_data)
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return stream.render("html", doctype="html")
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# *** Initialization ***
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config = get_config()
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# defaults to the standard TEMPLATES_DIR
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mapping = get_mapping(config)
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templates_dir = get_templates_dir(config)
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web_defaults = dict(config.items("Web"))
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loader = genshi.template.TemplateLoader(templates_dir, auto_reload=False)
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# this line allows to use mod_wsgi
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# see: http://groups.google.com/group/bobo-web/msg/2ba55fc381658cd1
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# see: http://blog.dscpl.com.au/2009/08/using-bobo-on-top-of-modwsgi.html
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if __name__ == "__main__":
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application = bobo.Application(bobo_resources=__name__)
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htman/templates/frontpage.html
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htman/templates/frontpage.html
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<!DOCTYPE html>
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<html xml:lang="de" lang="de"
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xmlns="http://www.w3.org/1999/xhtml"
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xmlns:xi="http://www.w3.org/2001/XInclude"
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xmlns:py="http://genshi.edgewall.org/">
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<xi:include href="layout.html" />
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<head/>
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<body>
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<form name="show_htpasswd" action="manage" method="POST">
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<label for="name">Access zone:</label>
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<input type="text" size="30" name="htname" id="name" />
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<input type="submit" name="submit" value="Show" />
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</form>
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</body>
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</html>
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htman/templates/layout.html
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<!DOCTYPE html>
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<html xmlns="http://www.w3.org/1999/xhtml"
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xmlns:py="http://genshi.edgewall.org/" py:strip="">
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<py:match path="head" once="true">
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<head py:attrs="select('@*')">
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<meta http-equiv="Content-Type" content="text/html; charset=UTF-8"/>
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<title>${title}</title>
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<link rel="stylesheet" href="${css_url}" type="text/css" />
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<link rel="shortcut icon" href="${favicon_url}" type="image/vnd.microsoft.icon" />
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<link rel="icon" href="${favicon_url}" type="image/vnd.microsoft.icon" />
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</head>
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</py:match>
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<py:match path="body" once="true">
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<body py:attrs="select('@*')">
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<div id="header">
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<table border="0">
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<tr><td>
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<a href="/index.html"><img src="/logo.png" alt="sl-logo" style="border:none"/></a>
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</td>
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<td><h1><a href="/index.html">systemausfall.org</a> </h1></td>
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</tr>
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</table>
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</div>
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<div id="content">${select('*|text()')}</div>
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<div id="footer">
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<table width="100%">
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<tr><td style="width:70%"><div class="text">
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"A designer knows he has achieved perfection not when there is nothing left to add, but when there is nothing left to take away." -- Antoine de Saint-Exupéry
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</div></td>
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<td style="width:10%"><div class="link">
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<a href="/packungsbeilage.html">impressum</a>
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</div></td>
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</tr>
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</table>
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</div>
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</body>
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</py:match>
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</html>
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htman/templates/manage_users.html
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htman/templates/manage_users.html
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<!DOCTYPE html>
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<html xml:lang="de" lang="de"
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xmlns="http://www.w3.org/1999/xhtml"
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xmlns:xi="http://www.w3.org/2001/XInclude"
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xmlns:py="http://genshi.edgewall.org/">
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<xi:include href="layout.html" />
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<head/>
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<body>
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<h2>Manage user access for <i>${htname}</i></h2>
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<div py:if="error" class="error">${error}</div>
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<h3>Add user</h3>
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<form name="add-passwd" action="" method="POST">
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<label for="username_add">User name:</label>
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<input type="text" size="20" name="username" id="username_add" />
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<br/>
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<label for="password_add">Password:</label>
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<input type="text" size="20" name="password" id="password_add" />
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<input type="hidden" name="action" value="new" />
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<input type="hidden" name="htname" value="${htname}"/>
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<input type="submit" name="submit" value="Add user" />
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</form>
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<py:if test="usernames">
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<hr/>
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<h3>Change password</h3>
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<form name="update-passwd" action="" method="POST">
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<label for="username_update">User name:</label>
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<select name="username" id="username_update" size="1">
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<option py:for="username in usernames">${username}</option>
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</select>
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<br/>
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<label for="password_update">New password:</label>
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<input type="text" size="20" name="password" id="password_update" />
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<input type="hidden" name="action" value="update" />
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<input type="hidden" name="htname" value="${htname}"/>
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<input type="submit" name="submit" value="Change password" />
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</form>
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<hr/>
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<h3>Delete user</h3>
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<form name="del-passwd" action="" method="POST">
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<label for="username_del">User name:</label>
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<select name="username" id="username_del" size="1">
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<option py:for="username in usernames">${username}</option>
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</select>
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<input type="hidden" name="action" value="del" />
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<input type="hidden" name="htname" value="${htname}"/>
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<input type="submit" name="submit" value="Delete user" />
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</form>
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</py:if>
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</body>
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</html>
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