[vdrpylib-cvslog] vdrpylib/vdr svdrp.py,1.4,1.5

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Update of /cvsroot/vdrpylib/vdrpylib/vdr
In directory sc8-pr-cvs1.sourceforge.net:/tmp/cvs-serv29782

Modified Files:
	svdrp.py 
Log Message:
-Add SVDRP_CMD_* constants.
-Add an option (default for now) to close the SVDRP connection after each
 command because VDR supports only one open connection.
-Checks for host and port.
-Debug connection handling, see where we can improve.
-Add a method to return the current channel.

Index: svdrp.py
===================================================================
RCS file: /cvsroot/vdrpylib/vdrpylib/vdr/svdrp.py,v
retrieving revision 1.4
retrieving revision 1.5
diff -C2 -d -r1.4 -r1.5
*** svdrp.py	25 Nov 2002 22:03:51 -0000	1.4
--- svdrp.py	24 Nov 2004 17:18:27 -0000	1.5
***************
*** 24,27 ****
--- 24,28 ----
  import telnetlib
  import time
+ from types import *

  import channel
***************
*** 31,34 ****
--- 32,62 ----
  # SVDRP constants
  SVDRP_PORT=2001
+ SVDRP_CMD_CHAN = 'chan'
+ SVDRP_CMD_CLRE = 'clre'
+ SVDRP_CMD_DELC = 'delc'
+ SVDRP_CMD_DELR = 'delr'
+ SVDRP_CMD_DELT = 'delt'
+ SVDRP_CMD_GRAB = 'grab'
+ SVDRP_CMD_HELP = 'help'
+ SVDRP_CMD_HITK = 'hitk'
+ SVDRP_CMD_LSTC = 'lstc'
+ SVDRP_CMD_LSTE = 'lste'
+ SVDRP_CMD_LSTR = 'lstr'
+ SVDRP_CMD_LSTT = 'lstt'
+ SVDRP_CMD_MESG = 'mesg'
+ SVDRP_CMD_MODC = 'modc'
+ SVDRP_CMD_MODT = 'modt'
+ SVDRP_CMD_MOVC = 'movc'
+ SVDRP_CMD_MOVT = 'movt'
+ SVDRP_CMD_NEWC = 'newc'
+ SVDRP_CMD_NEWT = 'newt'
+ SVDRP_CMD_NEXT = 'next'
+ SVDRP_CMD_PUTE = 'pute'
+ SVDRP_CMD_SCAN = 'scan'
+ SVDRP_CMD_STAT = 'stat'
+ SVDRP_CMD_UPDT = 'updt'
+ SVDRP_CMD_VOLU = 'volu'
+ SVDRP_CMD_QUIT = 'quit'
+ 

  class SVDRP(telnetlib.Telnet):
***************
*** 42,58 ****
  	the plain telnet interface may also be used to drive the
  	protocol manually.
  	"""
! 	def __init__(self, host = None, port = SVDRP_PORT):
! 		if host is None:
! 			telnetlib.Telnet.__init__(self)
! 		else:
! 			telnetlib.Telnet.__init__(self, host, port)
! 			# consume all output
! 			result = ''
! 			while not result:
! 				result = self.read_very_eager()

! 	def open(self, host, port = SVDRP_PORT):
  		"""Connect to a host.

--- 70,91 ----
  	the plain telnet interface may also be used to drive the
  	protocol manually.
+ 
+ 	close_connection makes SVDRP close the connection after each command
+ 	because unfortunately the SVDRP interface only supports one open 
+ 	connection (HELLO?!?!).
  	"""
! 	def __init__(self, host, port = SVDRP_PORT, close_connection = 1):
!                 self.host = host
!                 self.port = port
!                 self.close_connection = close_connection
! 
! 		telnetlib.Telnet.__init__(self, self.host, self.port)
!                 #print 'RLS: after telnet init'
! 
! 		if self.close_connection:
!                 	self.close()

! 	def open(self, host = None, port = SVDRP_PORT):
  		"""Connect to a host.

***************
*** 62,66 ****
  		Don't try to reopen an already connected instance.
  		"""
! 		telnetlib.Telnet.open(self, host, port)

--- 95,129 ----
  		Don't try to reopen an already connected instance.
  		"""
! 		#print 'RLS: in open 1'
!                 if not host and not self.host:
!                     return
! 
!                 if self.get_socket():
! 		    return
! 
!                 if host:
! 		    #print 'RLS: in open 2'
! 		    telnetlib.Telnet.open(self, host, port)
!                 else:
! 		    #print 'RLS: in open 3'
! 		    telnetlib.Telnet.open(self, self.host, self.port)
! 
! 		#time.sleep(0.2)
! 
! 		# consume all output
! 		result = ''
! 		while not result:
! 			#print 'RLS: reading very eager'
! 			result = self.read_very_eager()
! 			#print 'RLS: read'
! 		#print 'RLS: result="%s"' % result
! 
! 
! 	def close(self):
!                 self.write('quit\n')
! 		reply = self.read_reply()
! 		#time.sleep(0.2)
! 		telnetlib.Telnet.close(self)
! 		return reply

***************
*** 77,91 ****
  		"""
  		pat = re.compile('^\d\d\d .*\n', re.M)
! 		reply = ''
! 		buffer = self.read_very_eager()
! 		while not pat.search(buffer):
! 			reply = reply + buffer
! 			time.sleep(0.2)
  			buffer = self.read_very_eager()
! 		reply = reply + buffer
  		return reply

! 	def write_cmd(self, cmd):
  		"""Send text to the server and return its reply.

--- 140,158 ----
  		"""
  		pat = re.compile('^\d\d\d .*\n', re.M)
! 		#reply = ''
! 		reply = self.read_very_eager()
! 		#print 'RLS: initial reply "%s"' % reply
! 		while not pat.search(reply):
  			buffer = self.read_very_eager()
! 			reply = reply + buffer
! 			#print 'RLS: reply now "%s"' % reply
! 			#time.sleep(0.2)
! 			#buffer = self.read_very_eager()
! 			#print 'RLS: reading reply got "%s"' % buffer
! 		#reply = reply + buffer
  		return reply

! 	def write_cmd(self, cmd, close = -1):
  		"""Send text to the server and return its reply.

***************
*** 99,107 ****
  		if len(cmd) == 0:
  			return ''
  		if cmd[-1] != '\n':
  			cmd = cmd + '\n'
  		self.read_very_eager()
  		self.write(cmd)
! 		return self.read_reply()

--- 166,187 ----
  		if len(cmd) == 0:
  			return ''
+ 
+                 self.open()
+ 
  		if cmd[-1] != '\n':
  			cmd = cmd + '\n'
  		self.read_very_eager()
  		self.write(cmd)
! 		#time.sleep(0.2)
!                 reply = self.read_reply()
! 
!                 if close > 0:
!                     self.close()
! 		    #print 'RLS: want to close %d' % close
!                 elif close == -1 and self.close_connection:
! 		    #print 'RLS: want to close %d' % close
!                     self.close()
! 
! 		return reply

***************
*** 122,126 ****

! 	def chan(self, channel, vdr = None):
  		"""Switch the current channel.

--- 202,206 ----

! 	def chan(self, chan, vdr = None):
  		"""Switch the current channel.

***************
*** 136,146 ****
  		string returned by VDR or None if the command failed.
  		"""
! 		if isinstance(channel, channel.Channel):
  			result = self.write_cmd('chan ' + channel.name + '\n')
! 		elif isinstance(channel, string._StringType):
! 			result = self.write_cmd('chan ' + channel + '\n')
  		if result[0:3] == '250':
! 			if data is not None:
! 				return data.getchannel(result.split(None, 2)[1])
  			else:
  				return result[3:]
--- 216,226 ----
  		string returned by VDR or None if the command failed.
  		"""
! 		if isinstance(chan, channel.Channel):
  			result = self.write_cmd('chan ' + channel.name + '\n')
! 		elif isinstance(chan, StringType) or isinstance(chan, IntType):
! 			result = self.write_cmd('chan %s\n' % chan)
  		if result[0:3] == '250':
! 			if vdr:
! 				return vdr.getchannel(result.split(None, 2)[1])
  			else:
  				return result[3:]
***************
*** 150,153 ****
--- 230,240 ----

+ 	def current_chan(self):
+ 		"""
+ 		Return the currently tuned channel.
+ 		"""
+ 		return self.write_cmd('chan\n')
+ 
+ 
  	def lstc(self, id = None):
  		"""List channel details.
***************
*** 198,202 ****
  		successfully, false else.
  		"""
! 		result = self.write_cmd('pute\n')
  		if result[0:3] != '354':
  			print 'pute returned: ' + result
--- 285,289 ----
  		successfully, false else.
  		"""
! 		result = self.write_cmd('pute\n', close = 0)
  		if result[0:3] != '354':
  			print 'pute returned: ' + result
***************
*** 208,211 ****
--- 295,302 ----

  		result = self.read_reply()
+            
+                 if self.close_connection:
+ 			self.close()
+ 
  		if result[0:3] != '250':
  			print 'pute returned: ' + result