def __init__(self, collectorName):
self.log = log
self._daemon = zope.component.getUtility(ICollector)
self.collectorName = collectorName
self.rs = RenderServer(collectorName)
def __init__(self, collectorName):
self.log = log
self._daemon = zope.component.getUtility(ICollector)
self.collectorName = collectorName
self.rs = RenderServer(collectorName)
class HttpRender(resource.Resource):
isLeaf = True
def __init__(self, collectorName):
self.log = log
self._daemon = zope.component.getUtility(ICollector)
self.collectorName = collectorName
self.rs = RenderServer(collectorName)
def remote_render(self, *args, **kw):
return self.rs.render(*args, **kw)
def remote_packageRRDFiles(self, *args, **kw):
return self.rs.packageRRDFiles(*args, **kw)
def remote_unpackageRRDFiles(self, *args, **kw):
return self.rs.unpackageRRDFiles(*args, **kw)
def remote_receiveRRDFiles(self, *args, **kw):
return self.rs.receiveRRDFiles(*args, **kw)
def remote_sendRRDFiles(self, *args, **kw):
return self.rs.sendRRDFiles(*args, **kw)
def remote_moveRRDFiles(self, *args, **kw):
return self.rs.moveRRDFiles(*args, **kw)
def remote_deleteRRDFiles(self, *args, **kw):
return self.rs.deleteRRDFiles(*args, **kw)
def remote_plugin(self, *args, **kw):
return self.rs.plugin(*args, **kw)
def remote_summary(self, *args, **kw):
return self.rs.summary(*args, **kw)
def remote_fetchValues(self, *args, **kw):
return self.rs.fetchValues(*args, **kw)
def remote_currentValues(self, *args, **kw):
return self.rs.currentValues(*args, **kw)
def _showHelp(self):
"""
When someone hits the HTTP port directly, give them
something other than a traceback.
"""
helpText = [ """<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN">
<html><title>zenrender Help</title>
<body>
<h3>This zenrender is for collector: %s</h3>
<h3>About zenrender</h3>
<p>The zenrender daemon receives calls from zenhub (or in some
special cases, by a browser directly) and given a request,
creates a graph of RRD data or returns back RRD information.
This daemon is not meant to be browsed directly by users.</p>
<p>A zenrender daemon should only respond to requests for
the remote collector with which it is associated. This
zenrender daemon is registered with the '%s' collector.</p>
""" % (self.collectorName, self.collectorName)]
methods = []
for name in dir(self):
if not name.startswith('remote_'):
continue
name = name.replace('remote_', '')
docs = getattr(self.rs, name).__doc__
docs = docs if docs is not None else ''
methods.append( (name, docs) )
# Insert table of methods
helpText.append("""<table border='1'>
<caption>zenrender Methods</caption>
<tr><th>Method Name</th><th>Description</th></tr>""")
for name, docs in sorted(methods):
helpText.append("<tr><td>%s</td> <td><pre>%s</pre></td></tr>" % (
name, docs))
helpText.append("</table>")
# Drop in the trailer
helpText.append("""</body></html>""")
return '\n'.join(helpText)
def render_GET(self, request):
"""
Respond to HTTP GET requests
"""
args = request.args.copy()
for k, v in args.items():
if len(v) == 1:
args[k] = v[0]
command = request.postpath[-1]
self.log.debug("Processing %s request from %s", command,
request.getClientIP())
if command == '':
return self._showHelp()
args.setdefault('ftype', 'PNG')
ftype = args['ftype']
del args['ftype']
mimetype = mimetypes.guess_type('x.%s' % ftype)[0]
if mimetype is None:
mimetype = 'image/%s' % ftype.lower()
request.setHeader('Content-type', mimetype)
request.setHeader('Pragma', 'no-cache')
# IE specific cache headers see http://support.microsoft.com/kb/234067/EN-US
request.setHeader('Cache-Control', 'no-cache, no-store')
request.setHeader('Expires', '-1')
functor = getattr(self._daemon, 'remote_' + command, None)
if functor:
return functor(**args)
# Ignore trash and log error messages
if command not in ('favicon.ico',):
self.log.error("Received a bad request: %s", command)
return ''
def render_POST(self, request):
"""
Respond to HTTP POST requests (eg XML-RPC requests)
"""
content = request.content.read()
args, command = xmlrpclib.loads(content)
self.log.debug("Processing %s request from %s" % (command,request.getClientIP()))
request.setHeader('Content-type', 'text/xml')
functor = getattr(self._daemon, 'remote_' + command, None)
if functor and isinstance(args, (tuple, list, dict)):
if isinstance(args, (tuple, list)):
result = functor(*args)
elif isinstance(args, dict):
result = functor(**args)
response = xmlrpclib.dumps((result,),
methodresponse=True, allow_none=True)
return response
self.log.error("Received a bad request: %s", command)
return ''
class HttpRender(resource.Resource):
isLeaf = True
def __init__(self, collectorName):
self.log = log
self._daemon = zope.component.getUtility(ICollector)
self.collectorName = collectorName
self.rs = RenderServer(collectorName)
def remote_render(self, *args, **kw):
return self.rs.render(*args, **kw)
def remote_packageRRDFiles(self, *args, **kw):
return self.rs.packageRRDFiles(*args, **kw)
def remote_unpackageRRDFiles(self, *args, **kw):
return self.rs.unpackageRRDFiles(*args, **kw)
def remote_receiveRRDFiles(self, *args, **kw):
return self.rs.receiveRRDFiles(*args, **kw)
def remote_sendRRDFiles(self, *args, **kw):
return self.rs.sendRRDFiles(*args, **kw)
def remote_moveRRDFiles(self, *args, **kw):
return self.rs.moveRRDFiles(*args, **kw)
def remote_deleteRRDFiles(self, *args, **kw):
return self.rs.deleteRRDFiles(*args, **kw)
def remote_plugin(self, *args, **kw):
return self.rs.plugin(*args, **kw)
def remote_summary(self, *args, **kw):
return self.rs.summary(*args, **kw)
def remote_fetchValues(self, *args, **kw):
return self.rs.fetchValues(*args, **kw)
def remote_currentValues(self, *args, **kw):
return self.rs.currentValues(*args, **kw)
def _showHelp(self):
"""
When someone hits the HTTP port directly, give them
something other than a traceback.
"""
helpText = [
"""<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN">
<html><title>zenrender Help</title>
<body>
<h3>This zenrender is for collector: %s</h3>
<h3>About zenrender</h3>
<p>The zenrender daemon receives calls from zenhub (or in some
special cases, by a browser directly) and given a request,
creates a graph of RRD data or returns back RRD information.
This daemon is not meant to be browsed directly by users.</p>
<p>A zenrender daemon should only respond to requests for
the remote collector with which it is associated. This
zenrender daemon is registered with the '%s' collector.</p>
""" % (self.collectorName, self.collectorName)
]
methods = []
for name in dir(self):
if not name.startswith('remote_'):
continue
name = name.replace('remote_', '')
docs = getattr(self.rs, name).__doc__
docs = docs if docs is not None else ''
methods.append((name, docs))
# Insert table of methods
helpText.append("""<table border='1'>
<caption>zenrender Methods</caption>
<tr><th>Method Name</th><th>Description</th></tr>""")
for name, docs in sorted(methods):
helpText.append("<tr><td>%s</td> <td><pre>%s</pre></td></tr>" %
(name, docs))
helpText.append("</table>")
# Drop in the trailer
helpText.append("""</body></html>""")
return '\n'.join(helpText)
def render_GET(self, request):
"""
Respond to HTTP GET requests
"""
args = request.args.copy()
for k, v in args.items():
if len(v) == 1:
args[k] = v[0]
command = request.postpath[-1]
self.log.debug("Processing %s request from %s", command,
request.getClientIP())
if command == '':
return self._showHelp()
args.setdefault('ftype', 'PNG')
ftype = args['ftype']
del args['ftype']
mimetype = mimetypes.guess_type('x.%s' % ftype)[0]
if mimetype is None:
mimetype = 'image/%s' % ftype.lower()
request.setHeader('Content-type', mimetype)
request.setHeader('Pragma', 'no-cache')
# IE specific cache headers see http://support.microsoft.com/kb/234067/EN-US
request.setHeader('Cache-Control', 'no-cache, no-store')
request.setHeader('Expires', '-1')
functor = getattr(self._daemon, 'remote_' + command, None)
if functor:
return functor(**args)
# Ignore trash and log error messages
if command not in ('favicon.ico', ):
self.log.error("Received a bad request: %s", command)
return ''
def render_POST(self, request):
"""
Respond to HTTP POST requests (eg XML-RPC requests)
"""
content = request.content.read()
args, command = xmlrpclib.loads(content)
self.log.debug("Processing %s request from %s" %
(command, request.getClientIP()))
request.setHeader('Content-type', 'text/xml')
functor = getattr(self._daemon, 'remote_' + command, None)
if functor and isinstance(args, (tuple, list, dict)):
if isinstance(args, (tuple, list)):
result = functor(*args)
elif isinstance(args, dict):
result = functor(**args)
response = xmlrpclib.dumps((result, ),
methodresponse=True,
allow_none=True)
return response
self.log.error("Received a bad request: %s", command)
return ''
