added commandline interface to library

bitid.py

@@ -0,0 +1,58 @@
+#!/usr/bin/env python
+
+import json
+import sys, getopt
+import pybitid.bitid as bitid
+
+def main(argv):
+    message = {'valid_address':'',
+               'valid_uri':'',
+               'valid_signature':'',
+               'callback': '',
+               'nonce':'',
+               'address':'',
+               'uri':'',
+               'qrcode':'',
+               'signature':''}
+    try:
+        opts, args = getopt.getopt(argv, "c:a:n:u:s:", ["callback=","address=","nonce=","uri=","signature="])
+    except getopt.GetoptError:
+        print 'To generate a bitid auth request'
+        print 'bitid -c (--callback) -n (--nonce)'
+        print 'To verify a bitid auth request:'
+        print 'bitid -a (--address) -u (--uri) -s (--signature) -c (--callback)'
+        sys.exit(2)
+    for opt, arg in opts:
+        if opt == '-n':
+            message['nonce'] = arg
+        if opt == '-c':
+            message['callback'] = arg
+        if opt == '-a':
+            message['address'] = arg
+        if opt == '-u':
+            message['uri'] = arg
+        if opt == '-s':
+            message['signature'] = arg
+
+    if message['address'] != '':
+        message['valid_address'] = str( bitid.address_valid( message['address'] ) )
+
+    if message['uri'] != '' and message['callback'] != '':
+        message['valid_uri'] = str( bitid.uri_valid( message['uri'], message['callback'] ) )
+
+    if message['address'] != '' and message['signature'] != '' and message['uri'] != '' and message['callback'] != '':
+        valid_signature = bitid.signature_valid( message['address'], message['signature'], message['uri'], message['callback'] )
+        message['valid_signature'] = str( valid_signature )
+
+    if message['callback'] and message['nonce'] == '':
+        message['nonce'] = bitid.generate_nonce()
+
+        message['uri'] = bitid.build_uri( message['callback'], message['nonce'] )
+        message['qrcode'] = bitid.qrcode( message['uri'] )
+
+    return json.dumps(message)
+
+
+if __name__ == "__main__":
+    retval = main(sys.argv[1:])
+    print retval