X-Git-Url: https://jfr.im/git/z_archive/twitter.git/blobdiff_plain/d20da7f3e83b0c68402d46ef96c463c307cd9e2f..098660ce6ca34597e97f074b3af48f64dcf3ea03:/twitter/oauth.py

diff --git a/twitter/oauth.py b/twitter/oauth.py
index bf81f42..be47e96 100644
--- a/twitter/oauth.py
+++ b/twitter/oauth.py
@@ -1,16 +1,48 @@
+from __future__ import print_function
+
 from twitter.auth import Auth
 
 from time import time
 from random import getrandbits
-from time import time
-import urllib
+
+try:
+    import urllib.parse as urllib_parse
+except ImportError:
+    import urllib2 as urllib_parse
+
 import hashlib
 import hmac
+import base64
+
+
+
+def write_token_file(filename, oauth_token, oauth_token_secret):
+    """
+    Write a token file to hold the oauth token and oauth token secret.
+    """
+    oauth_file = open(filename, 'w')
+    print(oauth_token, file=oauth_file)
+    print(oauth_token_secret, file=oauth_file)
+    oauth_file.close()
+
+def read_token_file(filename):
+    """
+    Read a token file and return the oauth token and oauth token secret.
+    """
+    f = open(filename)
+    return f.readline().strip(), f.readline().strip()
 
 
-# An OAuth implementation with various helpers...
 class OAuth(Auth):
+    """
+    An OAuth authenticator.
+    """
     def __init__(self, token, token_secret, consumer_key, consumer_secret):
+        """
+        Create the authenticator. If you are in the initial stages of
+        the OAuth dance and don't yet have a token or token_secret,
+        pass empty strings for these params.
+        """
         self.token = token
         self.token_secret = token_secret
         self.consumer_key = consumer_key
@@ -19,23 +51,26 @@ class OAuth(Auth):
     def encode_params(self, base_url, method, params):
         params = params.copy()
 
-        params['oauth_token'] = self.token
+        if self.token:
+            params['oauth_token'] = self.token
+
         params['oauth_consumer_key'] = self.consumer_key
         params['oauth_signature_method'] = 'HMAC-SHA1'
         params['oauth_version'] = '1.0'
         params['oauth_timestamp'] = str(int(time()))
         params['oauth_nonce'] = str(getrandbits(64))
 
-        enc_params = urlencode_noplus(sorted(params.iteritems()))
+        enc_params = urlencode_noplus(sorted(params.items()))
 
-        key = self.consumer_secret + "&" + urllib.quote(self.token_secret, '')
+        key = self.consumer_secret + "&" + urllib_parse.quote(self.token_secret, '')
 
         message = '&'.join(
-            urllib.quote(i, '') for i in [method.upper(), base_url, enc_params])
-    
-        signature = hmac.new(
-            key, message, hashlib.sha1).digest().encode('base64')[:-1]
-        return enc_params + "&" + "oauth_signature=" + urllib.quote(signature, '')
+            urllib_parse.quote(i, '') for i in [method.upper(), base_url, enc_params])
+
+        signature = (base64.b64encode(hmac.new(
+                    key.encode('ascii'), message.encode('ascii'), hashlib.sha1)
+                                      .digest()))
+        return enc_params + "&" + "oauth_signature=" + urllib_parse.quote(signature, '')
 
     def generate_headers(self):
         return {}
@@ -47,18 +82,18 @@ class OAuth(Auth):
 def urlencode_noplus(query):
     if hasattr(query,"items"):
         # mapping objects
-        query = query.items()
-    
+        query = list(query.items())
+
     encoded_bits = []
     for n, v in query:
         # and do unicode here while we are at it...
-        if isinstance(n, unicode):
+        if isinstance(n, str):
             n = n.encode('utf-8')
         else:
             n = str(n)
-        if isinstance(v, unicode):
+        if isinstance(v, str):
             v = v.encode('utf-8')
         else:
             v = str(v)
-        encoded_bits.append("%s=%s" % (urllib.quote(n, ""), urllib.quote(v, "")))
+        encoded_bits.append("%s=%s" % (urllib_parse.quote(n, ""), urllib_parse.quote(v, "")))
     return "&".join(encoded_bits)