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reports.py
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reports.py
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import os
from datetime import datetime
import yaml
import logging
import itertools
import gevent
class Report:
"""This is the ooni-probe reporting mechanism. It allows
reporting to multiple destinations and file formats.
:scp the string of <host>:<port> of an ssh server
:yaml the filename of a the yaml file to write
:file the filename of a simple txt file to write
:tcp the <host>:<port> of a TCP server that will just listen for
inbound connection and accept a stream of data (think of it
as a `nc -l -p <port> > filename.txt`)
"""
def __init__(self, ooni,
scp="127.0.0.1:22",
file="test.report",
tcp="127.0.0.1:9000"):
self.file = file
self.tcp = tcp
self.scp = scp
self.config = ooni.config.report
self.logger = ooni.logger
if self.config.timestamp:
tmp = self.file.split('.')
self.file = '.'.join(tmp[:-1]) + "-" + \
datetime.now().isoformat('-') + '.' + \
tmp[-1]
print self.file
try:
import paramiko
except:
self.scp = None
self.logger.warn("Could not import paramiko. SCP will not be disabled")
def __call__(self, data):
"""
This should be invoked every time you wish to write some
data to the reporting system
"""
#print "Writing report(s)"
#dump = '--- \n'
dump = yaml.dump([data])
#dump += yaml.dump(data)
reports = []
if self.file:
reports.append("file")
if self.tcp:
reports.append("tcp")
if self.scp:
reports.append("scp")
jobs = [gevent.spawn(self.send_report, *(dump, report)) for report in reports]
gevent.joinall(jobs)
ret = []
for job in jobs:
#print job.value
ret.append(job.value)
return ret
def file_report(self, data, file=None, mode='a+'):
"""
This reports to a file in YAML format
"""
if not file:
file = self.file
try:
f = open(file, mode)
f.write(data)
except Exception, e:
raise e
finally:
f.close()
def tcp_report(self, data):
"""
This connect to the specified tcp server
and writes the data passed as argument.
"""
host, port = self.tcp.split(":")
tcp = socket.getprotobyname('tcp')
send_socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM, tcp)
try:
send_socket.connect((host, int(port)))
send_socket.send(data)
except Exception, e:
raise e
finally:
send_socket.close()
def scp_report(self, data, rfile=None, mode='a+'):
"""
Push data to the remote ssh server.
:rfile the remote filename to write
:data the raw data content that should be written
:mode in what mode the file should be created
"""
if not rfile:
rfile = self.file
host, port = self.scp.split(":")
transport = paramiko.Transport((host, port))
# The remote path of the remote file to write
rfpath = os.path.join(self.config.ssh_rpath, rfile)
try:
username = self.config.ssh_username
except:
raise "No username provided"
# Load the local known host key file
transport.load_host_keys(os.path.expanduser("~/.ssh/known_hosts"))
# We prefer to use an ssh keyfile fo authentication
if self.config.ssh_keyfile:
keyfile = os.path.expanduser(self.config.ssh_keyfile)
key = paramiko.RSAKey.from_private_key_file(keylocfile)
try:
transport.connect(username=username, pkey=key)
except Exception, e:
raise e
# If not even a password is fine
elif self.config.ssh_password:
try:
transport.connect(username=username, password=self.config.ssh_password)
except Exception, e:
raise e
# ... but no authentication, that is madness!
else:
raise "No key or password provided for ssh"
sftp = paramiko.SFTPClient.from_transport(transport)
try:
sftp = ssh.open_sftp()
remote_file = sftp.file(rfile, mode)
remote_file.set_pipelined(True)
remote_file.write(data)
except Exception, e:
raise e
sftp.close()
transport.close()
def send_report(self, data, type):
"""
This sends the report using the
specified type.
"""
#print "Reporting %s to %s" % (data, type)
self.logger.info("Reporting to %s" % type)
getattr(self, type+"_report").__call__(data)