def getChild(self, chnam, request):
if chnam == '':
return error.ErrorPage(http.NOT_FOUND,
"Bad URL",
"The empty string is not a valid user.")
import pwd
td = '.twistd'
if chnam[-len(td):] == td:
username = chnam[:-len(td)]
sub = 1
else:
username = chnam
sub = 0
try:
pw_name, pw_passwd, pw_uid, pw_gid, pw_gecos, pw_dir, pw_shell \
= pwd.getpwnam(username)
except KeyError:
return error.ErrorPage(http.NOT_FOUND,
"No Such User",
"The user %s was not found on this system." %
repr(username))
if sub:
twistdsock = os.path.join(pw_dir, self.userSocketName)
rs = ResourceSubscription('unix',twistdsock)
self.putChild(chnam, rs)
return rs
else:
return static.File(os.path.join(pw_dir, self.userDirName))
def render(self, resrc):
try:
body = resrc.render(self)
except UnsupportedMethod, e:
allowedMethods = e.allowedMethods
if (self.method == "HEAD") and ("GET" in allowedMethods):
# We must support HEAD (RFC 2616, 5.1.1). If the
# resource doesn't, fake it by giving the resource
# a 'GET' request and then return only the headers,
# not the body.
log.msg("Using GET to fake a HEAD request for %s" % (resrc, ))
self.method = "GET"
body = resrc.render(self)
if body is NOT_DONE_YET:
log.msg("Tried to fake a HEAD request for %s, but "
"it got away from me." % resrc)
# Oh well, I guess we won't include the content length.
else:
self.setHeader('content-length', str(len(body)))
self.write('')
self.finish()
return
if self.method in (supportedMethods):
# We MUST include an Allow header
# (RFC 2616, 10.4.6 and 14.7)
self.setHeader('Allow', allowedMethods)
s = ('''Your browser approached me (at %(URI)s) with'''
''' the method "%(method)s". I only allow'''
''' the method%(plural)s %(allowed)s here.''' % {
'URI': self.uri,
'method': self.method,
'plural': ((len(allowedMethods) > 1) and 's') or '',
'allowed': string.join(allowedMethods, ', ')
})
epage = error.ErrorPage(http.NOT_ALLOWED, "Method Not Allowed",
s)
body = epage.render(self)
else:
epage = error.ErrorPage(
http.NOT_IMPLEMENTED, "Huh?",
"""I don't know how to treat a"""
""" %s request.""" % (self.method))
body = epage.render(self)
def failed(self, expt):
self.request.write(
error.ErrorPage(http.INTERNAL_SERVER_ERROR,
"Server Connection Lost",
"Connection to distributed server lost:" +
html.PRE(expt)).
render(self.request))
self.request.finish()
def failed(self, failure):
#XXX: Argh. FIXME.
failure = str(failure)
self.request.write(
error.ErrorPage(
http.INTERNAL_SERVER_ERROR, "Server Connection Lost",
"Connection to distributed server lost:" +
html.PRE(failure)).render(self.request))
self.request.finish()
log.msg(failure)
def connectionLost(self):
process.Process.connectionLost(self)
if self.handling_headers:
self.request.write(
error.ErrorPage(
http.INTERNAL_SERVER_ERROR, "CGI Script Error",
"Premature end of script headers; errors follow:<hr>" +
html.PRE(self.errortext) + "<hr>" +
html.PRE(self.headertext) + "<hr>").render(self.request))
self.request.finish()
def ResourceTemplate(path, registry):
from quixote import ptl_compile
glob = {
'__file__': path,
'resource': error.ErrorPage(500, "Whoops! Internal Error",
rpyNoResource),
'registry': registry
}
e = ptl_compile.compile_template(open(path), path)
exec e in glob
return glob['resource']
def processEnded(self, reason):
if reason.value.exitCode != 0:
log.msg("CGI %s exited with exit code %s" %
(self.request.uri, reason.value.exitCode))
if self.errortext:
log.msg("Errors from CGI %s: %s" % (self.request.uri, self.errortext))
if self.handling_headers:
log.msg("Premature end of headers in %s: %s" % (self.request.uri, self.headertext))
self.request.write(
error.ErrorPage(http.INTERNAL_SERVER_ERROR,
"CGI Script Error",
"Premature end of script headers.").render(self.request))
self.request.unregisterProducer()
self.request.finish()
def __init__(self, path, registry):
self.path = path
self.registry = registry
self.doCache = 0
def cache(self):
c = self.registry.getCachedPath(self.path)
if c is not None:
raise AlreadyCached(c)
self.recache()
def recache(self):
self.doCache = 1
noRsrc = error.ErrorPage(500, "Whoops! Internal Error", rpyNoResource)
def ResourceScript(path, registry):
"""
I am a normal py file which must define a 'resource' global, which should
be an instance of (a subclass of) web.resource.Resource; it will be
renderred.
"""
cs = CacheScanner(path, registry)
glob = {
'__file__': path,
'resource': noRsrc,
'registry': registry,
'cache': cs.cache,
'recache': cs.recache
class Request(pb.Copyable, http.Request, components.Componentized):
site = None
appRootURL = None
__pychecker__ = 'unusednames=issuer'
def __init__(self, *args, **kw):
http.Request.__init__(self, *args, **kw)
components.Componentized.__init__(self)
self.notifications = []
def getStateToCopyFor(self, issuer):
x = self.__dict__.copy()
del x['transport']
# XXX refactor this attribute out; it's from protocol
# del x['server']
del x['channel']
del x['content']
del x['site']
self.content.seek(0, 0)
x['content_data'] = self.content.read()
x['remote'] = pb.ViewPoint(issuer, self)
# Address objects aren't jellyable
x['host'] = _addressToTuple(x['host'])
x['client'] = _addressToTuple(x['client'])
return x
# HTML generation helpers
def sibLink(self, name):
"Return the text that links to a sibling of the requested resource."
if self.postpath:
return (len(self.postpath) * "../") + name
else:
return name
def childLink(self, name):
"Return the text that links to a child of the requested resource."
lpp = len(self.postpath)
if lpp > 1:
return ((lpp - 1) * "../") + name
elif lpp == 1:
return name
else: # lpp == 0
if len(self.prepath) and self.prepath[-1]:
return self.prepath[-1] + '/' + name
else:
return name
def process(self):
"Process a request."
# get site from channel
self.site = self.channel.site
# set various default headers
self.setHeader('server', version)
self.setHeader('date', http.datetimeToString())
self.setHeader('content-type', "text/html")
# Resource Identification
self.prepath = []
self.postpath = map(unquote, string.split(self.path[1:], '/'))
try:
resrc = self.site.getResourceFor(self)
self.render(resrc)
except:
self.processingFailed(failure.Failure())
def render(self, resrc):
try:
body = resrc.render(self)
except UnsupportedMethod, e:
allowedMethods = e.allowedMethods
if (self.method == "HEAD") and ("GET" in allowedMethods):
# We must support HEAD (RFC 2616, 5.1.1). If the
# resource doesn't, fake it by giving the resource
# a 'GET' request and then return only the headers,
# not the body.
log.msg("Using GET to fake a HEAD request for %s" % (resrc, ))
self.method = "GET"
body = resrc.render(self)
if body is NOT_DONE_YET:
log.msg("Tried to fake a HEAD request for %s, but "
"it got away from me." % resrc)
# Oh well, I guess we won't include the content length.
else:
self.setHeader('content-length', str(len(body)))
self.write('')
self.finish()
return
if self.method in (supportedMethods):
# We MUST include an Allow header
# (RFC 2616, 10.4.6 and 14.7)
self.setHeader('Allow', allowedMethods)
s = ('''Your browser approached me (at %(URI)s) with'''
''' the method "%(method)s". I only allow'''
''' the method%(plural)s %(allowed)s here.''' % {
'URI': self.uri,
'method': self.method,
'plural': ((len(allowedMethods) > 1) and 's') or '',
'allowed': string.join(allowedMethods, ', ')
})
epage = error.ErrorPage(http.NOT_ALLOWED, "Method Not Allowed",
s)
body = epage.render(self)
else:
epage = error.ErrorPage(
http.NOT_IMPLEMENTED, "Huh?",
"""I don't know how to treat a"""
""" %s request.""" % (self.method))
body = epage.render(self)
# end except UnsupportedMethod
if body == NOT_DONE_YET:
return
if type(body) is not types.StringType:
body = error.ErrorPage(
http.INTERNAL_SERVER_ERROR, "Request did not return a string",
"Request: " + html.PRE(reflect.safe_repr(self)) + "<br />" +
"Resource: " + html.PRE(reflect.safe_repr(resrc)) + "<br />" +
"Value: " + html.PRE(reflect.safe_repr(body))).render(self)
if self.method == "HEAD":
if len(body) > 0:
# This is a Bad Thing (RFC 2616, 9.4)
log.msg("Warning: HEAD request %s for resource %s is"
" returning a message body."
" I think I'll eat it." % (self, resrc))
self.setHeader('content-length', str(len(body)))
self.write('')
else:
self.setHeader('content-length', str(len(body)))
self.write(body)
self.finish()
def process(self):
"Process a request."
# Log the request to a file.
log.msg(self)
# cache the client information, we'll need this later to be
# pickled and sent with the request so CGIs will work remotely
self.client = self.transport.getPeer()
# set various default headers
self.setHeader('server', version)
self.setHeader('date', date_time_string())
self.setHeader('content-type', "text/html")
self.setHeader('connection', 'close')
try:
# Argument processing
args = self.args
if self.method == "POST":
mfd = 'multipart/form-data'
key, pdict = cgi.parse_header(self.getHeader('content-type'))
if key == 'application/x-www-form-urlencoded':
args.update(cgi.parse_qs(self.content))
elif key == mfd:
args.update(
cgi.parse_multipart(StringIO.StringIO(self.content),
pdict))
else:
pass #raise 'bad content-type'
# Resource Identification
self.server_port = 80
# XXX ^^^^^^^^^^ Obviously it's not always 80. figure it
# out from the URI.
self.prepath = []
self.postpath = string.split(self.path[1:], '/')
resrc = self.site.getResourceFor(self)
body = resrc.render(self)
if body == NOT_DONE_YET:
return
if type(body) is not types.StringType:
body = error.ErrorPage(
http.INTERNAL_SERVER_ERROR,
"Request did not return a string", "Request: " +
html.PRE(reflect.safe_repr(self)) + "<BR>" + "Resource: " +
html.PRE(reflect.safe_repr(resrc)) + "<BR>" + "Value: " +
html.PRE(reflect.safe_repr(body))).render(self)
except passport.Unauthorized:
body = "<HTML><BODY>You're not cleared for that.</BODY></HTML>"
self.setResponseCode(http.UNAUTHORIZED)
self.setHeader('content-type', "text/html")
except UnsupportedMethod, e:
allowedMethods = e.allowedMethods
if (self.method == "HEAD") and ("GET" in allowedMethods):
# We must support HEAD (RFC 2616, 5.1.1). If the resource
# doesn't, fake it by giving the resource a 'GET' request
# and then return only the headers -- not the body.
log.msg("Using GET to fake a HEAD request for %s" % resrc)
self.method == "GET"
body = resrc.render(self)
if body is NOT_DONE_YET:
log.msg("Tried to fake a HEAD request for %s, but "
"it got away from me." % resrc)
# Oh well, I guess we won't include the content
# length then.
else:
# XXX: What's this "minus one" for?
self.setHeader('content-length', str(len(body) - 1))
self.write('')
self.finish()
if self.method in (supportedMethods):
# We MUST include an Allow header
# (RFC 2616, 10.4.6 and 14.7)
self.setHeader('Allow', allowedMethods)
s = ('''Your browser approached me (at %(URI)s) with'''
''' the method "%(method)s". I only allow'''
''' the method%(plural)s %(allowed) here.''' % {
'URI': self.uri,
'method': self.method,
'plural': ((len(allowedMethods) > 1) and 's') or '',
'allowed': string.join(allowedMethods, ', ')
})
epage = error.ErrorPage(http.NOT_ALLOWED, "Method Not Allowed",
s)
body = epage.render(self)
else:
epage = error.ErrorPage(
http.NOT_IMPLEMENTED, "Huh?",
"""I don't know how to treat a"""
""" %s request.""" % (self.method))
body = epage.render(self)
