You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
88 lines
2.3 KiB
88 lines
2.3 KiB
6 years ago
|
# A demo of using the RAS API from Python
|
||
|
|
import sys
|
||
|
|
import win32ras
|
||
|
|
|
||
|
|
# The error raised if we can not
|
||
|
|
class ConnectionError(Exception):
|
||
|
|
pass
|
||
|
|
|
||
|
|
def Connect(rasEntryName, numRetries = 5):
|
||
|
|
"""Make a connection to the specified RAS entry.
|
||
|
|
|
||
|
|
Returns a tuple of (bool, handle) on success.
|
||
|
|
- bool is 1 if a new connection was established, or 0 is a connection already existed.
|
||
|
|
- handle is a RAS HANDLE that can be passed to Disconnect() to end the connection.
|
||
|
|
|
||
|
|
Raises a ConnectionError if the connection could not be established.
|
||
|
|
"""
|
||
|
|
assert numRetries > 0
|
||
|
|
for info in win32ras.EnumConnections():
|
||
|
|
if info[1].lower()==rasEntryName.lower():
|
||
|
|
print("Already connected to", rasEntryName)
|
||
|
|
return 0, info[0]
|
||
|
|
|
||
|
|
dial_params, have_pw = win32ras.GetEntryDialParams(None, rasEntryName)
|
||
|
|
if not have_pw:
|
||
|
|
print("Error: The password is not saved for this connection")
|
||
|
|
print("Please connect manually selecting the 'save password' option and try again")
|
||
|
|
sys.exit(1)
|
||
|
|
|
||
|
|
print("Connecting to", rasEntryName, "...")
|
||
|
|
retryCount = numRetries
|
||
|
|
while retryCount > 0:
|
||
|
|
rasHandle, errCode = win32ras.Dial(None, None, dial_params, None)
|
||
|
|
if win32ras.IsHandleValid(rasHandle):
|
||
|
|
bValid = 1
|
||
|
|
break
|
||
|
|
print("Retrying...")
|
||
|
|
win32api.Sleep(5000)
|
||
|
|
retryCount = retryCount - 1
|
||
|
|
|
||
|
|
if errCode:
|
||
|
|
raise ConnectionError(errCode, win32ras.GetErrorString(errCode))
|
||
|
|
return 1, rasHandle
|
||
|
|
|
||
|
|
def Disconnect(handle):
|
||
|
|
if type(handle)==type(''): # have they passed a connection name?
|
||
|
|
for info in win32ras.EnumConnections():
|
||
|
|
if info[1].lower()==handle.lower():
|
||
|
|
handle = info[0]
|
||
|
|
break
|
||
|
|
else:
|
||
|
|
raise ConnectionError(0, "Not connected to entry '%s'" % handle)
|
||
|
|
|
||
|
|
win32ras.HangUp(handle)
|
||
|
|
|
||
|
|
usage="""rasutil.py - Utilities for using RAS
|
||
|
|
|
||
|
|
Usage:
|
||
|
|
rasutil [-r retryCount] [-c rasname] [-d rasname]
|
||
|
|
|
||
|
|
-r retryCount - Number of times to retry the RAS connection
|
||
|
|
-c rasname - Connect to the phonebook entry specified by rasname
|
||
|
|
-d rasname - Disconnect from the phonebook entry specified by rasname
|
||
|
|
"""
|
||
|
|
|
||
|
|
def Usage(why):
|
||
|
|
print(why)
|
||
|
|
print(usage)
|
||
|
|
sys.exit(1)
|
||
|
|
|
||
|
|
if __name__=='__main__':
|
||
|
|
import getopt
|
||
|
|
try:
|
||
|
|
opts, args = getopt.getopt(sys.argv[1:], "r:c:d:")
|
||
|
|
except getopt.error as why:
|
||
|
|
Usage(why)
|
||
|
|
retries = 5
|
||
|
|
if len(args) != 0:
|
||
|
|
Usage("Invalid argument")
|
||
|
|
|
||
|
|
for opt, val in opts:
|
||
|
|
if opt=='-c':
|
||
|
|
Connect(val, retries)
|
||
|
|
if opt=='-d':
|
||
|
|
Disconnect(val)
|
||
|
|
if opt=='-r':
|
||
|
|
retries = int(val)
|