def resolve_href(self, req, resp, log):
"""Figure out the theme URL given a request and response.
This calls the pyref, or does URI template substitution on an
href attribute"""
substitute = True
if self.pyref:
if not execute_pyref(req):
log.error(
self, "Security disallows executing pyref %s" % self.pyref)
## FIXME: this isn't very good; fatal exception?:
href = self.href
else:
href = self.pyref(req, resp, log)
substitute = False
else:
href = self.href
if substitute:
vars = NestedDict(req.environ, req.headers,
dict(here=posixpath.dirname(self.source_location)))
new_href = uri_template_substitute(href, vars)
if new_href != href:
log.debug(
self, 'Rewrote theme href="%s" to "%s"' % (href, new_href))
href = new_href
## FIXME: is this join a good idea?
if href:
href = urlparse.urljoin(req.url, href)
return href
def resolve_href(self, req, resp, log):
"""Figure out the theme URL given a request and response.
This calls the pyref, or does URI template substitution on an
href attribute"""
substitute = True
if self.pyref:
if not execute_pyref(req):
log.error(
self, "Security disallows executing pyref %s" % self.pyref)
## FIXME: this isn't very good; fatal exception?:
href = self.href
else:
href = self.pyref(req, resp, log)
substitute = False
else:
href = self.href
if substitute:
vars = NestedDict(req.environ, req.headers,
dict(here=posixpath.dirname(self.source_location)))
new_href = uri_template_substitute(href, vars)
if new_href != href:
log.debug(
self, 'Rewrote theme href="%s" to "%s"' % (href, new_href))
href = new_href
## FIXME: is this join a good idea?
if href:
href = urllib.parse.urljoin(req.url, href)
return href
def parse_xml(cls, el, source_location):
"""Parse this document from an XML/etree element"""
assert el.tag == 'proxy'
match = ProxyMatch.parse_xml(el, source_location)
dest = None
request_modifications = []
response_modifications = []
strip_script_name = True
keep_host = False
editable = asbool(el.get('editable'))
for child in el:
if child.tag == 'dest':
if dest is not None:
raise DeliveranceSyntaxError(
"You cannot have more than one <dest> tag (second tag: %s)"
% xml_tostring(child),
element=child, source_location=source_location)
dest = ProxyDest.parse_xml(child, source_location)
elif child.tag == 'transform':
if child.get('strip-script-name'):
strip_script_name = asbool(child.get('strip-script-name'))
if child.get('keep-host'):
keep_host = asbool(child.get('keep-host'))
## FIXME: error on other attrs
elif child.tag == 'request':
request_modifications.append(
ProxyRequestModification.parse_xml(child, source_location))
elif child.tag == 'response':
response_modifications.append(
ProxyResponseModification.parse_xml(child, source_location))
elif child.tag is Comment:
continue
else:
raise DeliveranceSyntaxError(
"Unknown tag in <proxy>: %s" % xml_tostring(child),
element=child, source_location=source_location)
if editable:
if not dest:
## FIXME: should this always be a test?
raise DeliveranceSyntaxError("You must have a <dest> tag",
element=el, source_location=source_location)
try:
href = uri_template_substitute(
dest.href, dict(here=posixpath.dirname(source_location)))
except KeyError:
raise DeliveranceSyntaxError(
'You can only use <proxy editable="1"> if you have a <dest href="..."> that only contains {here} (you have %s)'
% (dest.href))
if not href.startswith('file:'):
raise DeliveranceSyntaxError(
'You can only use <proxy editable="1"> if you have a <dest href="file:///..."> (you have %s)'
% (dest))
classes = el.get('class', '').split() or None
inst = cls(match, dest, request_modifications, response_modifications,
strip_script_name=strip_script_name, keep_host=keep_host,
source_location=source_location, classes=classes,
editable=editable)
match.proxy = inst
return inst
def __call__(self, request, log):
"""Determine the destination given the request"""
assert not self.next
if self.pyref:
if not execute_pyref(request):
log.error(self, "Security disallows executing pyref %s" % self.pyref)
else:
return self.pyref(request, log)
## FIXME: is this nesting really needed?
## we could just use HTTP_header keys...
vars = NestedDict(request.environ, request.headers, dict(here=posixpath.dirname(self.source_location)))
return uri_template_substitute(self.href, vars)
def __call__(self, request, log):
"""Determine the destination given the request"""
assert not self.__next__
if self.pyref:
if not execute_pyref(request):
log.error(self,
"Security disallows executing pyref %s" % self.pyref)
else:
return self.pyref(request, log)
## FIXME: is this nesting really needed?
## we could just use HTTP_header keys...
vars = NestedDict(request.environ, request.headers,
dict(here=posixpath.dirname(self.source_location)))
return uri_template_substitute(self.href, vars)
def edit_app(self, environ, start_response):
try:
if not self.editable:
raise exc.HTTPForbidden('This proxy is not editable="1"')
if not edit_local_files(environ):
raise exc.HTTPForbidden("Editing is forbidden")
try:
dest_href = uri_template_substitute(self.dest.href, dict(here=posixpath.dirname(self.source_location)))
except KeyError:
raise exc.HTTPForbidden("Not a static location: %s" % self.dest.href)
if not dest_href.startswith("file:/"):
raise exc.HTTPForbidden("Not local: %s" % self.dest.href)
filename = url_to_filename(dest_href)
editor = Editor(base_dir=filename)
return editor(environ, start_response)
except exc.HTTPException, e:
return e(environ, start_response)
def edit_app(self, environ, start_response):
try:
if not self.editable:
raise exc.HTTPForbidden('This proxy is not editable="1"')
if not edit_local_files(environ):
raise exc.HTTPForbidden('Editing is forbidden')
try:
dest_href = uri_template_substitute(
self.dest.href, dict(here=posixpath.dirname(self.source_location)))
except KeyError:
raise exc.HTTPForbidden('Not a static location: %s' % self.dest.href)
if not dest_href.startswith('file:/'):
raise exc.HTTPForbidden('Not local: %s' % self.dest.href)
filename = url_to_filename(dest_href)
editor = Editor(base_dir=filename)
return editor(environ, start_response)
except exc.HTTPException, e:
return e(environ, start_response)
def parse_xml(cls, el, source_location):
"""Parse this document from an XML/etree element"""
assert el.tag == 'proxy'
match = ProxyMatch.parse_xml(el, source_location)
dest = None
wsgi = None
request_modifications = []
response_modifications = []
strip_script_name = True
keep_host = False
editable = asbool(el.get('editable'))
rewriting_links = None
## FIXME: this inline validation is a bit brittle because it is
## order-dependent, but validation errors generally aren't
for child in el:
if child.tag == 'dest':
if dest is not None:
raise DeliveranceSyntaxError(
"You cannot have more than one <dest> tag (second tag: %s)"
% xml_tostring(child),
element=child,
source_location=source_location)
if wsgi is not None:
raise DeliveranceSyntaxError(
"You cannot have both a <dest> tag and a <wsgi> tag (second tag: %s)"
% xml_tostring(child),
element=child,
source_location=source_location)
dest = ProxyDest.parse_xml(child, source_location)
elif child.tag == 'wsgi':
if wsgi is not None:
raise DeliveranceSyntaxError(
"You cannot have more than one <wsgi> tag (second tag: %s)"
% xml_tostring(child),
element=child,
source_location=source_location)
if dest is not None:
raise DeliveranceSyntaxError(
"You cannot have both a <dest> tag and a <wsgi> tag (second tag: %s)"
% xml_tostring(child),
element=child,
source_location=source_location)
if rewriting_links is not None:
raise DeliveranceSyntaxError(
"You cannot use ``<response rewrite-links='1'>`` in a proxy with a ``<wsgi>`` tag",
element=child,
source_location=source_location)
wsgi = ProxyWsgi.parse_xml(child, source_location)
elif child.tag == 'transform':
if child.get('strip-script-name'):
strip_script_name = asbool(child.get('strip-script-name'))
if child.get('keep-host'):
keep_host = asbool(child.get('keep-host'))
## FIXME: error on other attrs
elif child.tag == 'request':
request_modifications.append(
ProxyRequestModification.parse_xml(child, source_location))
elif child.tag == 'response':
mod = ProxyResponseModification.parse_xml(
child, source_location)
if mod.rewrite_links == True:
rewriting_links = mod
if wsgi is not None:
raise DeliveranceSyntaxError(
"You cannot use ``<response rewrite-links='1'>`` in a proxy with a ``<wsgi>`` tag",
element=child,
source_location=source_location)
response_modifications.append(mod)
elif child.tag is Comment:
continue
else:
raise DeliveranceSyntaxError("Unknown tag in <proxy>: %s" %
xml_tostring(child),
element=child,
source_location=source_location)
if editable:
if not dest:
## FIXME: should this always be a test?
raise DeliveranceSyntaxError("You must have a <dest> tag",
element=el,
source_location=source_location)
try:
href = uri_template_substitute(
dest.href, dict(here=posixpath.dirname(source_location)))
except KeyError:
raise DeliveranceSyntaxError(
'You can only use <proxy editable="1"> if you have a <dest href="..."> that only contains {here} (you have %s)'
% (dest.href))
if not href.startswith('file:'):
raise DeliveranceSyntaxError(
'You can only use <proxy editable="1"> if you have a <dest href="file:///..."> (you have %s)'
% (dest))
classes = el.get('class', '').split() or None
inst = cls(match,
dest,
request_modifications,
response_modifications,
strip_script_name=strip_script_name,
keep_host=keep_host,
source_location=source_location,
classes=classes,
editable=editable,
wsgi=wsgi)
match.proxy = inst
return inst
def parse_xml(cls, el, source_location):
"""Parse this document from an XML/etree element"""
assert el.tag == 'proxy'
match = ProxyMatch.parse_xml(el, source_location)
dest = None
wsgi = None
request_modifications = []
response_modifications = []
strip_script_name = True
keep_host = False
editable = asbool(el.get('editable'))
rewriting_links = None
## FIXME: this inline validation is a bit brittle because it is
## order-dependent, but validation errors generally aren't
for child in el:
if child.tag == 'dest':
if dest is not None:
raise DeliveranceSyntaxError(
"You cannot have more than one <dest> tag (second tag: %s)"
% xml_tostring(child),
element=child, source_location=source_location)
if wsgi is not None:
raise DeliveranceSyntaxError(
"You cannot have both a <dest> tag and a <wsgi> tag (second tag: %s)"
% xml_tostring(child),
element=child, source_location=source_location)
dest = ProxyDest.parse_xml(child, source_location)
elif child.tag == 'wsgi':
if wsgi is not None:
raise DeliveranceSyntaxError(
"You cannot have more than one <wsgi> tag (second tag: %s)"
% xml_tostring(child),
element=child, source_location=source_location)
if dest is not None:
raise DeliveranceSyntaxError(
"You cannot have both a <dest> tag and a <wsgi> tag (second tag: %s)"
% xml_tostring(child),
element=child, source_location=source_location)
if rewriting_links is not None:
raise DeliveranceSyntaxError(
"You cannot use ``<response rewrite-links='1'>`` in a proxy with a ``<wsgi>`` tag",
element=child, source_location=source_location)
wsgi = ProxyWsgi.parse_xml(child, source_location)
elif child.tag == 'transform':
if child.get('strip-script-name'):
strip_script_name = asbool(child.get('strip-script-name'))
if child.get('keep-host'):
keep_host = asbool(child.get('keep-host'))
## FIXME: error on other attrs
elif child.tag == 'request':
request_modifications.append(
ProxyRequestModification.parse_xml(child, source_location))
elif child.tag == 'response':
mod = ProxyResponseModification.parse_xml(child, source_location)
if mod.rewrite_links == True:
rewriting_links = mod
if wsgi is not None:
raise DeliveranceSyntaxError(
"You cannot use ``<response rewrite-links='1'>`` in a proxy with a ``<wsgi>`` tag",
element=child, source_location=source_location)
response_modifications.append(mod)
elif child.tag is Comment:
continue
else:
raise DeliveranceSyntaxError(
"Unknown tag in <proxy>: %s" % xml_tostring(child),
element=child, source_location=source_location)
if editable:
if not dest:
## FIXME: should this always be a test?
raise DeliveranceSyntaxError("You must have a <dest> tag",
element=el, source_location=source_location)
try:
href = uri_template_substitute(
dest.href, dict(here=posixpath.dirname(source_location)))
except KeyError:
raise DeliveranceSyntaxError(
'You can only use <proxy editable="1"> if you have a <dest href="..."> that only contains {here} (you have %s)'
% (dest.href))
if not href.startswith('file:'):
raise DeliveranceSyntaxError(
'You can only use <proxy editable="1"> if you have a <dest href="file:///..."> (you have %s)'
% (dest))
classes = el.get('class', '').split() or None
inst = cls(match, dest, request_modifications, response_modifications,
strip_script_name=strip_script_name, keep_host=keep_host,
source_location=source_location, classes=classes,
editable=editable, wsgi=wsgi)
match.proxy = inst
return inst