Page 249 - Asterisk™: The Future of Telephony

result = re.search('result=(\d+)',params)
if (not result):
sys.stderr.write("FAIL ('%s')\n" % params)
sys.stderr.flush()
return -1
else:
result = result.group(1)
#debug("Result:%s Params:%s" % (result, params))
sys.stderr.write("PASS (%s)\n" % result)
sys.stderr.flush()
return result
else:
sys.stderr.write("FAIL (unexpected result '%s')\n" % params)
sys.stderr.flush()
return -2
The checkresult function is almost identical in purpose to the checkresult subroutine
in the sample Perl AGI script we covered earlier in the chapter. It reads in the result of
an Asterisk command, parses the answer, and reports whether or not the command
was successful.
def sayit (params):
sys.stderr.write("STREAM FILE %s \"\"\n" % str(params))
sys.stderr.flush()
sys.stdout.write("STREAM FILE %s \"\"\n" % str(params))
sys.stdout.flush()
result = sys.stdin.readline().strip()
checkresult(result)
The sayit function is a simple wrapper around the STREAM FILE command.

def saynumber (params):
sys.stderr.write("SAY NUMBER %s \"\"\n" % params)
sys.stderr.flush()
sys.stdout.write("SAY NUMBER %s \"\"\n" % params)
sys.stdout.flush()
result = sys.stdin.readline().strip()
checkresult(result)
The saynumber function is a simple wrapper around the SAY NUMBER command.
def getnumber (prompt, timelimit, digcount):
sys.stderr.write("GET DATA %s %d %d\n" % (prompt, timelimit, digcount))
sys.stderr.flush()
sys.stdout.write("GET DATA %s %d %d\n" % (prompt, timelimit, digcount))
sys.stdout.flush()
result = sys.stdin.readline().strip()
result = checkresult(result)
sys.stderr.write("digits are %s\n" % result)
sys.stderr.flush()
if result:
return result
else:
result = -1

Writing AGI Scripts in Python | 221