From 7d49bba969a6ca490ade6aa908e350d3c05f76f4 Mon Sep 17 00:00:00 2001
From: Benjamin Peterson <benjamin@python.org>
Date: Mon, 2 Mar 2009 22:41:42 +0000
Subject: give httplib.IncompleteRead a more sane repr #4308

---
 Lib/httplib.py           | 13 +++++++++++--
 Lib/test/test_httplib.py | 19 +++++++++++++++++++
 Misc/ACKS                |  1 +
 Misc/NEWS                |  3 +++
 4 files changed, 34 insertions(+), 2 deletions(-)

diff --git a/Lib/httplib.py b/Lib/httplib.py
index 85e49ab..2e749ea 100644
--- a/Lib/httplib.py
+++ b/Lib/httplib.py
@@ -626,7 +626,7 @@ class HTTPResponse:
         while amt > 0:
             chunk = self.fp.read(min(amt, MAXAMOUNT))
             if not chunk:
-                raise IncompleteRead(s)
+                raise IncompleteRead(''.join(s), amt)
             s.append(chunk)
             amt -= len(chunk)
         return ''.join(s)
@@ -1161,9 +1161,18 @@ class UnimplementedFileMode(HTTPException):
     pass
 
 class IncompleteRead(HTTPException):
-    def __init__(self, partial):
+    def __init__(self, partial, expected=None):
         self.args = partial,
         self.partial = partial
+        self.expected = expected
+    def __repr__(self):
+        if self.expected is not None:
+            e = ', %i more expected' % self.expected
+        else:
+            e = ''
+        return 'IncompleteRead(%i bytes read%s)' % (len(self.partial), e)
+    def __str__(self):
+        return repr(self)
 
 class ImproperConnectionState(HTTPException):
     pass
diff --git a/Lib/test/test_httplib.py b/Lib/test/test_httplib.py
index c8c0648..54a2b0e 100644
--- a/Lib/test/test_httplib.py
+++ b/Lib/test/test_httplib.py
@@ -185,6 +185,8 @@ class BasicTest(TestCase):
                 resp.read()
             except httplib.IncompleteRead, i:
                 self.assertEquals(i.partial, 'hello world')
+                self.assertEqual(repr(i),'IncompleteRead(11 bytes read)')
+                self.assertEqual(str(i),'IncompleteRead(11 bytes read)')
             else:
                 self.fail('IncompleteRead expected')
             finally:
@@ -198,6 +200,23 @@ class BasicTest(TestCase):
         self.assertEquals(resp.read(), 'Hello\r\n')
         resp.close()
 
+    def test_incomplete_read(self):
+        sock = FakeSocket('HTTP/1.1 200 OK\r\nContent-Length: 10\r\n\r\nHello\r\n')
+        resp = httplib.HTTPResponse(sock, method="GET")
+        resp.begin()
+        try:
+            resp.read()
+        except httplib.IncompleteRead as i:
+            self.assertEquals(i.partial, 'Hello\r\n')
+            self.assertEqual(repr(i),
+                             "IncompleteRead(7 bytes read, 3 more expected)")
+            self.assertEqual(str(i),
+                             "IncompleteRead(7 bytes read, 3 more expected)")
+        else:
+            self.fail('IncompleteRead expected')
+        finally:
+            resp.close()
+
 
 class OfflineTest(TestCase):
     def test_responses(self):
diff --git a/Misc/ACKS b/Misc/ACKS
index 2438d1e..426cd9a 100644
--- a/Misc/ACKS
+++ b/Misc/ACKS
@@ -765,6 +765,7 @@ Dik Winter
 Blake Winton
 Jean-Claude Wippler
 Lars Wirzenius
+Chris Withers
 Stefan Witzel
 David Wolever
 Klaus-Juergen Wolf
diff --git a/Misc/NEWS b/Misc/NEWS
index a9a249a..8c524bb 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -168,6 +168,9 @@ Core and Builtins
 Library
 -------
 
+- Issue #4308: httplib.IncompleteRead's repr doesn't include all of the data all
+  ready received.
+
 - Issue #5401: Fixed a performance problem in mimetypes when ``from mimetypes
   import guess_extension`` was used.
 
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