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76 lines
2.4 KiB
76 lines
2.4 KiB
#!/usr/bin/env python3
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#
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# Copyright (c) 2016, Neil Booth
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#
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# All rights reserved.
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#
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# See the file "LICENCE" for information about the copyright
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# and warranty status of this software.
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'''Script to send RPC commands to a running ElectrumX server.'''
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import argparse
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import asyncio
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import json
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from functools import partial
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from os import environ
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from lib.jsonrpc import JSONRPC
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from server.protocol import ServerManager
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class RPCClient(JSONRPC):
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async def send_and_wait(self, method, params, timeout=None):
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# Raise incoming buffer size - presumably connection is trusted
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self.max_buffer_size = 5000000
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self.send_json_request(method, id_=method, params=params)
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future = asyncio.ensure_future(self.messages.get())
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for f in asyncio.as_completed([future], timeout=timeout):
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try:
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message = await f
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except asyncio.TimeoutError:
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future.cancel()
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print('request timed out after {}s'.format(timeout))
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else:
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await self.handle_message(message)
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async def handle_response(self, result, error, method):
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if result and method == 'sessions':
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for line in ServerManager.sessions_text_lines(result):
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print(line)
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else:
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value = {'error': error} if error else result
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print(json.dumps(value, indent=4, sort_keys=True))
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def main():
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'''Send the RPC command to the server and print the result.'''
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parser = argparse.ArgumentParser('Send electrumx an RPC command' )
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parser.add_argument('-p', '--port', metavar='port_num', type=int,
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help='RPC port number')
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parser.add_argument('command', nargs=1, default=[],
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help='command to send')
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parser.add_argument('param', nargs='*', default=[],
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help='params to send')
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args = parser.parse_args()
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if args.port is None:
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args.port = int(environ.get('ELECTRUMX_RPC_PORT', 8000))
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loop = asyncio.get_event_loop()
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coro = loop.create_connection(RPCClient, 'localhost', args.port)
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try:
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transport, protocol = loop.run_until_complete(coro)
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coro = protocol.send_and_wait(args.command[0], args.param, timeout=15)
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loop.run_until_complete(coro)
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except OSError:
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print('error connecting - is ElectrumX catching up or not running?')
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finally:
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loop.close()
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if __name__ == '__main__':
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main()
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