def _respond(self, transaction):
mgmt = self.session().value('mgmt')
assert 'monitor' != mgmt.remoteUser.lower(), \
'Monitor may not view or download logs.'
# check permissions
assert Nodes.permission(mgmt,
'/logging/syslog/action/file/\/var\/log\/messages') != 'deny', \
('%s may not view or download logs.' % mgmt.remoteUser)
request = transaction.request()
response = transaction.response()
fields = request.fields()
logtype = fields.get('logtype', 'user')
mime = fields.get('mime', '') or self.ContentType
logfilename = '/var/log/%smessages' % self.LOGTYPE_PREFIX[logtype]
try:
bytesize = os.stat(logfilename)[stat.ST_SIZE]
seekto = max(0, bytesize - 500)
response.setHeader('Content-type', mime)
response.commit()
if mime.endswith('html'):
response.write('<html>\n')
response.write('<head>\n')
response.write('<title>Continuous Log</title>\n')
response.write('</head>\n')
response.write('<body>\n')
response.write('<pre>\n')
response.flush(True)
logfile = file(logfilename)
logfile.seek(seekto) # Seek to almost EOF
# Print out the last few lines of the log,
# stripping out any partial line artifact of our seek()
txt = cgi.escape(logfile.read() or '')
txt = txt[txt.find('\n') + 1:]
writingDots = 0
# Write to log after seek so we should read it in the first
# iteration of reading logfile.
while hasattr(request, '_transaction') and \
2 < AppServerModule.globalAppServer._running:
if txt:
if writingDots:
response.write('\n')
writingDots = 0
response.write(txt)
else:
writingDots += 1
if 0 == writingDots % 80:
response.write('\n')
response.write('. ')
time.sleep(3)
response.flush() # I don't trust auto flush
txt = cgi.escape(logfile.read() or '')
except ConnectionAbortedError:
pass
except:
OSUtils.logException()
def _openPathname(self, pathName):
# check permissions
mgmt = self.session().value('mgmt')
assert 'monitor' != mgmt.remoteUser.lower(), \
'Download prohibited for the monitor user.'
assert Nodes.permission(
mgmt, self.__getTarget()['rbaNode']) != 'deny', \
('Download prohibited for user %s.' % mgmt.remoteUser)
if 'openFileFn' in self.__getTarget():
return self.__getTarget()['openFileFn'](pathName)
else:
return file(pathName, "r")
