getHeader as it is in Zope3's HTTPRequest.

lib/python/ZPublisher/HTTPRequest.py

@@ -1082,7 +1082,7 @@ class HTTPRequest(BaseRequest):
         clone['PARENTS']=[self['PARENTS'][-1]]
         return clone
 
-    def get_header(self, name, default=None):
+    def getHeader(self, name, default=None, literal=False):
         """Return the named HTTP header, or an optional default
         argument or None if the header is not found. Note that
         both original and CGI-ified header names are recognized,
@@ -1090,7 +1090,8 @@ class HTTPRequest(BaseRequest):
         should all return the Content-Type header, if available.
         """
         environ=self.environ
-        name=('_'.join(name.split("-"))).upper()
+        if not literal:
+            name = name.replace('-', '_').upper()
         val=environ.get(name, None)
         if val is not None:
             return val
@@ -1098,6 +1099,8 @@ class HTTPRequest(BaseRequest):
             name='HTTP_%s' % name
         return environ.get(name, default)
 
+    get_header = getHeader  # BBB
+
     def get(self, key, default=None, returnTaints=0,
             URLmatch=re.compile('URL(PATH)?([0-9]+)$').match,
             BASEmatch=re.compile('BASE(PATH)?([0-9]+)$').match,

lib/python/ZPublisher/tests/testHTTPRequest.py

@@ -801,6 +801,30 @@ class RequestTests( unittest.TestCase ):
         request = HTTPRequest(s, env, None)
         self.assertEqual(request.getClientAddr(), '')
 
+    def testGetHeader(self):
+        s = StringIO('')
+        env = TEST_ENVIRON.copy()
+        request = HTTPRequest(s, env, None)
+
+        self.assertEqual(request.getHeader('Content-Type'),
+                         'multipart/form-data; boundary=12345')
+
+        # getHeader is agnostic of case
+        self.assertEqual(request.getHeader('content-type'),
+                         'multipart/form-data; boundary=12345')
+
+        # and of dashes vs. underscores
+        self.assertEqual(request.getHeader('content_type'),
+                         'multipart/form-data; boundary=12345')
+
+        # the 'literal' argument can turn this normalization off:
+        self.assertEqual(request.getHeader('Content-Type', literal=True), None)
+
+        # the 'default' argument can be used to get something other than
+        # None when the lookup fails:
+        self.assertEqual(request.getHeader('Not-existant', default='Whatever'),
+                         'Whatever')
+
 def test_suite():
     suite = unittest.TestSuite()
     suite.addTest(unittest.makeSuite(AuthCredentialsTests, 'test'))