import os
import cherrypy
import logging
import hashlib
import re
PAGE = """
Wastebin
"""
RE_NAME = re.compile(r'^[a-z0-9_\-/]+$')
def sha256(data):
h = hashlib.sha256()
h.update(data.encode("utf-8"))
return h.hexdigest()
class WasteWeb(object):
def __init__(self, datadir):
self.datadir = datadir
@cherrypy.expose
def index(self, load=None):
data = ""
if load:
assert RE_NAME.match(load)
data = self.loadpaste(load)
yield PAGE.format(data=data.replace("<", "<"), load=load or "")
@cherrypy.expose
def make(self, name, contents):
assert RE_NAME.match(name)
pname = name or sha256(contents)
self.writepaste(pname, contents)
raise cherrypy.HTTPRedirect("/" + pname)
@cherrypy.expose
def default(self, *args):
data = self.loadpaste(args[0])
yield data
def loadpaste(self, name):
path = self.pastepath(sha256(name))
with open(path) as f:
f.readline() # the name
return f.read()
def writepaste(self, name, contents):
hname = sha256(name)
path = self.pastepath(hname)
os.makedirs(os.path.dirname(path), exist_ok=True)
with open(path, "w") as f:
f.write(name)
f.write("\n")
f.write(contents)
def pastepath(self, hashedname):
return os.path.join(self.datadir, hashedname[0], hashedname[1], hashedname + ".txt")
def main():
import argparse
import signal
parser = argparse.ArgumentParser(description="")
parser.add_argument('-p', '--port', default=8080, type=int, help="http port")
parser.add_argument('-d', '--data', default="./", help="data dir")
parser.add_argument('--debug', action="store_true", help="enable development options")
args = parser.parse_args()
logging.basicConfig(level=logging.INFO if args.debug else logging.WARNING,
format="%(asctime)-15s %(levelname)-8s %(filename)s:%(lineno)d %(message)s")
web = WasteWeb(args.data)
cherrypy.tree.mount(web, '/', {'/': {'tools.trailing_slash.on': False}})
cherrypy.config.update({
'tools.sessions.on': False,
'request.show_tracebacks': True,
'server.socket_port': args.port,
'server.thread_pool': 5,
'server.socket_host': '0.0.0.0',
'server.show_tracebacks': args.debug,
'log.screen': False,
'engine.autoreload.on': args.debug
})
def signal_handler(signum, stack):
logging.critical('Got sig {}, exiting...'.format(signum))
cherrypy.engine.exit()
signal.signal(signal.SIGINT, signal_handler)
signal.signal(signal.SIGTERM, signal_handler)
try:
cherrypy.engine.start()
cherrypy.engine.block()
finally:
logging.info("API has shut down")
cherrypy.engine.exit()
if __name__ == '__main__':
main()