mirror of https://git.kore.io/kore.git
65 lines
2.0 KiB
Python
65 lines
2.0 KiB
Python
#
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# Copyright (c) 2018 Joris Vink <joris@coders.se>
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#
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# Permission to use, copy, modify, and distribute this software for any
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# purpose with or without fee is hereby granted, provided that the above
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# copyright notice and this permission notice appear in all copies.
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#
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# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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#
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#
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# Asynchronous process example.
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#
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# Wait for the result of an external process asynchronously.
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# The handler will execute "/bin/ls" on the current directory and
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# read the result.
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#
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import kore
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import json
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async def async_proc(req):
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#
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# You may specify a timeout when creating the kore.proc object.
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# If the timeout is reached before the process exits kore will
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# raise a TimeoutError exception.
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#
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# Ex: set timeout to 100ms:
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# proc = kore.proc("/bin/ls -lR", 100)
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proc = kore.proc("/bin/ls -lR")
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try:
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stdout = ""
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# Read until EOF (None is returned)
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while True:
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chunk = await proc.recv(1024)
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if chunk is None:
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break
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stdout += chunk.decode()
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# Reap the process.
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retcode = await proc.reap()
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# Respond with the return code + the result as JSON.
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payload = {
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"retcode": retcode,
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"stdout": stdout
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}
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data = json.dumps(payload, indent=4)
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req.response(200, data.encode())
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except Exception as e:
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# If an exception occurs we must kill the process first.
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proc.kill()
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errmsg = "Exception: %s" % e
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req.response(500, errmsg.encode())
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