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## `rdiffweb/rdw_app.py` — `class:RdiffwebApp` (lines 107-266)
```python
class RdiffwebApp(Application):
"""This class represent the application context."""
_favicon = Option('favicon')
_header_logo = Option('header_logo')
_tempdir = Option('tempdir')
_session_dir = Option('session_dir')
@classmethod
def parse_args(cls, args=None, config_file_contents=None):
return parse_args(args, config_file_contents)
def __init__(self, cfg):
self.cfg = cfg
cherrypy.config.update(
{
'environment': 'development' if cfg.debug else cfg.environment,
# Configure LDAP plugin
'ldap.uri': cfg.ldap_uri,
'ldap.base_dn': cfg.ldap_base_dn,
'ldap.bind_dn': cfg.ldap_bind_dn,
'ldap.bind_password': cfg.ldap_bind_password,
'ldap.scope': cfg.ldap_scope,
'ldap.tls': cfg.ldap_tls,
'ldap.username_attribute': cfg.ldap_username_attribute,
'ldap.required_group': cfg.ldap_required_group,
'ldap.group_attribute': cfg.ldap_group_attribute,
'ldap.group_attribute_is_dn': cfg.ldap_group_attribute_is_dn,
'ldap.version': cfg.ldap_version,
'ldap.network_timeout': cfg.ldap_network_timeout,
'ldap.timeout': cfg.ldap_timeout,
'ldap.encoding': cfg.ldap_encoding,
# Configure SMTP plugin
'smtp.server': cfg.email_host,
'smtp.username': cfg.email_username,
'smtp.password': cfg.email_password,
'smtp.email_from': cfg.email_sender
and '%s <%s>'
% (
cfg.header_name,
cfg.email_sender,
),
'smtp.encryption': cfg.email_encryption,
# Configure remove_older plugin
'remove_older.execution_time': self.cfg.remove_older_time,
# Configure notification plugin
'notification.execution_time': self.cfg.email_notification_time,
'notification.send_changed': self.cfg.email_send_changed_notification,
# Configure quota plugin
'quota.set_quota_cmd': self.cfg.quota_set_cmd,
'quota.get_quota_cmd': self.cfg.quota_get_cmd,
'quota.get_usage_cmd': self.cfg.quota_used_cmd,
}
)
# Initialise the template engine.
self.templates = rdw_templating.TemplateManager()
# Pick the right implementation for storage
session_storage_class = cherrypy.lib.sessions.RamSession
rate_limit_storage_class = rdiffweb.tools.ratelimit.RamRateLimit
if self._session_dir:
session_storage_class = cherrypy.lib.sessions.FileSession
rate_limit_storage_class = rdiffweb.tools.ratelimit.FileRateLimit
config = {
'/': {
# To work around the new behaviour in CherryPy >= 5.5.0, force usage of
# ISO-8859-1 encoding for URL. This avoid any conversion of the
# URL into UTF-8.
'request.uri_encoding': 'ISO-8859-1',
'tools.auth_basic.realm': 'rdiffweb',
'tools.auth_basic.checkpassword': self._checkpassword,
'tools.auth_form.on': True,
'tools.currentuser.on': True,
'tools.currentuser.userobj': lambda username: self.store.get_user(username),
'tools.i18n.on': True,
'tools.i18n.default': 'en_US',
'tools.i18n.mo_dir': pkg_resources.resource_filename('rdiffweb', 'locales'), # @UndefinedVariable
'tools.i18n.domain': 'messages',
'tools.encode.on': True,
'tools.encode.encoding': 'utf-8',
'tools.gzip.on': True,
'error_page.default': self.error_page,
'tools.sessions.on': True,
'tools.sessions.debug': cfg.debug,
'tools.sessions.storage_class': session_storage_class,
'tools.sessions.storage_path': self._session_dir,
'tools.sessions.httponly': True,
'tools.ratelimit.debug': cfg.debug,
'tools.ratelimit.delay': 60,
'tools.ratelimit.anonymous_limit': cfg.rate_limit,
'tools.ratelimit.storage_class': rate_limit_storage_class,
'tools.ratelimit.storage_path': self._session_dir,
},
}
# Initialize the application
Application.__init__(self, root=Root(), config=config)
# Register favicon.ico
self.root.favicon_ico = static(self._favicon)
# Register header_logo
if self._header_logo:
self.root.header_logo = static(self._header_logo)
# Define TEMP env
if self._tempdir:
os.environ["TMPDIR"] = self._tempdir
# create user manager
self.store = Store(self)
self.store.create_admin_user()
@property
def currentuser(self):
"""
Proxy property to get current user from cherrypy request object.
Return a UserObject when logged in or None.
"""
return getattr(cherrypy.serving.request, 'currentuser', None)
def _checkpassword(self, realm, username, password):
"""
Check basic authentication.
"""
return self.store.login(username, password) is not None
def error_page(self, **kwargs):
"""
Default error page shown to the user when an unexpected error occur.
"""
# Log exception.
logger.error(
'error page: %s %s\n%s' % (kwargs.get('status', ''), kwargs.get('message', ''), kwargs.get('traceback', ''))
)
# Check expected response type.
mtype = cherrypy.tools.accept.callable(['text/html', 'text/plain']) # @UndefinedVariable
if mtype == 'text/plain':
return kwargs.get('message')
# Try to build a nice error page.
try:
page = Controller()
return page._compile_template('error_page_default.html', **kwargs)
except Exception:
# If failing, send the raw error message.
return kwargs.get('message')
@property
def version(self):
"""
Get the current running version (using package info).
"""
return rdiffweb.__version__
```
## `rdiffweb/rdw_app.py` — `function:RdiffwebApp.error_page` (lines 239-259)
```python
def error_page(self, **kwargs):
"""
Default error page shown to the user when an unexpected error occur.
"""
# Log exception.
logger.error(
'error page: %s %s\n%s' % (kwargs.get('status', ''), kwargs.get('message', ''), kwargs.get('traceback', ''))
)
# Check expected response type.
mtype = cherrypy.tools.accept.callable(['text/html', 'text/plain']) # @UndefinedVariable
if mtype == 'text/plain':
return kwargs.get('message')
# Try to build a nice error page.
try:
page = Controller()
return page._compile_template('error_page_default.html', **kwargs)
except Exception:
# If failing, send the raw error message.
return kwargs.get('message')
```
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