mirror of
https://github.com/internetarchive/brozzler.git
synced 2025-02-24 16:49:56 -05:00
87 lines
3.6 KiB
Python
Executable File
87 lines
3.6 KiB
Python
Executable File
#!/usr/bin/env python
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from json import dumps, loads
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import os,sys,argparse, urllib2
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import websocket
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import thread
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import time
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import uuid
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import logging
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import threading
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logging.basicConfig(level=logging.DEBUG)
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class Umbra:
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def __init__(self, port):
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self.cmd_id = 0
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self.chrome_debug_port = port
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self.launch_tab_socket = self.get_websocket(self.on_open)
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self.launch_tab_socket.run_forever()
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def get_websocket(self, on_open, url=None):
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debug_info = loads(urllib2.urlopen("http://localhost:%s/json" % self.chrome_debug_port).read())
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if url: #Polling for the data url we used to initialize the window
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while not filter(lambda x: x['url'] == url, debug_info):
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debug_info = loads(urllib2.urlopen("http://localhost:%s/json" % self.chrome_debug_port).read())
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time.sleep(0.5)
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debug_info = filter(lambda x: x['url'] == url, debug_info)
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return_socket = websocket.WebSocketApp(debug_info[0]['webSocketDebuggerUrl'], on_message = self.on_message)
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return_socket.on_open = on_open
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return return_socket
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def on_message(self, ws, message):
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message = loads(message)
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if "method" in message.keys() and message["method"] == "Network.requestWillBeSent":
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pass #print message
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def on_open(self, ws):
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self.fetch_url("http://archive.org")
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time.sleep(10)
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sys.exit(0)
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def send_command(self,tab=None, **kwargs):
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if not tab:
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tab = self.launch_tab_socket
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command = {}
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command.update(kwargs)
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self.cmd_id += 1
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command['id'] = self.cmd_id
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tab.send(dumps(command))
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def fetch_url(self, url):
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new_page = 'data:text/html;charset=utf-8,<html><body>%s</body></html>' % str(uuid.uuid4())
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self.send_command(method="Runtime.evaluate", params={"expression":"window.open('%s');" % new_page})
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def on_open(ws):
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self.send_command(tab=ws, method="Network.enable")
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self.send_command(tab=ws, method="Runtime.evaluate", params={"expression":"document.location = '%s';" % url})
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socket = self.get_websocket(on_open, new_page)
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threading.Thread(target=socket.run_forever).start()
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class Chrome():
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def __init__(self, port):
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self.port = port
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def __enter__(self):
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import psutil, subprocess
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self.chrome_process = subprocess.Popen(["google-chrome", "--remote-debugging-port=%s" % self.port])
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start = time.time()
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open_debug_port = lambda conn: conn.laddr[1] == int(self.port)
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chrome_ps_wrapper = psutil.Process(self.chrome_process.pid)
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while time.time() - start < 10 and len(filter(open_debug_port, chrome_ps_wrapper.get_connections())) == 0:
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time.sleep(1)
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if len(filter(open_debug_port, chrome_ps_wrapper.get_connections())) == 0:
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self.chrome_process.kill()
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raise Exception("Chrome failed to listen on the debug port in time!")
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def __exit__(self, *args):
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print "Killing"
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self.chrome_process.kill()
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if __name__ == "__main__":
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arg_parser = argparse.ArgumentParser(prog=os.path.basename(sys.argv[0]),
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description='umbra - Browser automation tool',
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formatter_class=argparse.ArgumentDefaultsHelpFormatter)
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arg_parser.add_argument('-p', '--port', dest='port', default='9222',
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help='Port to have invoked chrome listen on for debugging connections')
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args = arg_parser.parse_args(args=sys.argv[1:])
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with Chrome(args.port):
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Umbra(args.port)
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