new method ConsoleApplication.acquire_input() to read stdin friendly

weboob/applications/boobmsg/boobmsg.py

@@ -230,12 +230,7 @@ class Boobmsg(ReplApplication):
         """
         receivers, text = self.parse_command_args(line, 2, 1)
         if text is None:
-            if self.interactive:
-                print 'Reading message content from stdin... Type ctrl-D ' \
-                      'from an empty line to post message.'
-            text = sys.stdin.read()
-            if sys.stdin.encoding:
-                text = text.decode(sys.stdin.encoding)
+            text = self.acquire_input()
 
         if self.options.skip_empty and not text.strip():
             return

weboob/applications/pastoob/pastoob.py

@@ -77,7 +77,7 @@ class Pastoob(ReplApplication):
         The filename can be '-' for reading standard input (pipe).
         """
         if not filename or filename == '-':
-            contents = sys.stdin.read().decode(sys.stdin.encoding or locale.getpreferredencoding())
+            contents = self.acquire_input()
         else:
             try:
                 with codecs.open(filename, encoding=locale.getpreferredencoding()) as fp:

weboob/applications/weboobcfg/weboobcfg.py

@@ -107,7 +107,7 @@ class WeboobCfg(ReplApplication):
             print >>sys.stderr, 'Error: backend "%s" does not support accounts management' % backend_name
             return 1
 
-        mail = sys.stdin.read()
+        mail = self.acquire_input()
         if not backend.confirm_account(mail):
             print >>sys.stderr, 'Error: Unable to confirm account creation'
             return 1