Code

When debugging mail (debug = <filename> setting in [mail] section of
[roundup.git] / test / test_multipart.py
index 9022d8674ee9b6b176f75eff58862af73703fca0..0cbc384c668a7cf5b9e4bc65f505dd56066a1fd4 100644 (file)
 # BASIS, AND THERE IS NO OBLIGATION WHATSOEVER TO PROVIDE MAINTENANCE,
 # SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
 # 
-# $Id: test_multipart.py,v 1.6 2003-10-25 22:53:26 richard Exp $ 
+# $Id: test_multipart.py,v 1.8 2007-09-22 07:25:35 jpend Exp $ 
 
-import unittest, cStringIO
+import unittest
+from cStringIO import StringIO
 
 from roundup.mailgw import Message
 
+class TestMessage(Message):
+    # A note on message/rfc822: The content of such an attachment is an
+    # email with at least one header line. RFC2046 tells us: """   A
+    # media type of "message/rfc822" indicates that the body contains an
+    # encapsulated message, with the syntax of an RFC 822 message.
+    # However, unlike top-level RFC 822 messages, the restriction that
+    # each "message/rfc822" body must include a "From", "Date", and at
+    # least one destination header is removed and replaced with the
+    # requirement that at least one of "From", "Subject", or "Date" must
+    # be present."""
+    # This means we have to add a newline after the mime-header before
+    # the subject, otherwise the subject is part of the mime header not
+    # part of the email header.
+    table = {'multipart/signed': '    boundary="boundary-%(indent)s";\n',
+             'multipart/mixed': '    boundary="boundary-%(indent)s";\n',
+             'multipart/alternative': '    boundary="boundary-%(indent)s";\n',
+             'text/plain': '    name="foo.txt"\nfoo\n',
+             'application/pgp-signature': '    name="foo.gpg"\nfoo\n',
+             'application/pdf': '    name="foo.pdf"\nfoo\n',
+             'message/rfc822': '\nSubject: foo\n\nfoo\n'}
+
+    def __init__(self, spec):
+        """Create a basic MIME message according to 'spec'.
+
+        Each line of a spec has one content-type, which is optionally indented.
+        The indentation signifies how deep in the MIME hierarchy the
+        content-type is.
+
+        """
+        parts = []
+        for line in spec.splitlines():
+            content_type = line.strip()
+            if not content_type:
+                continue
+
+            indent = self.getIndent(line)
+            if indent:
+                parts.append('\n--boundary-%s\n' % indent)
+            parts.append('Content-type: %s;\n' % content_type)
+            parts.append(self.table[content_type] % {'indent': indent + 1})
+
+        Message.__init__(self, StringIO(''.join(parts)))
+
+    def getIndent(self, line):
+        """Get the current line's indentation, using four-space indents."""
+        count = 0
+        for char in line:
+            if char != ' ':
+                break
+            count += 1
+        return count / 4
+
 class MultipartTestCase(unittest.TestCase):
     def setUp(self):
-        self.fp = cStringIO.StringIO()
+        self.fp = StringIO()
         w = self.fp.write
         w('Content-Type: multipart/mixed; boundary="foo"\r\n\r\n')
         w('This is a multipart message. Ignore this bit.\r\n')
-        w('--foo\r\n')
+        w('\r\n--foo\r\n')
 
         w('Content-Type: text/plain\r\n\r\n')
         w('Hello, world!\r\n')
@@ -35,26 +88,26 @@ class MultipartTestCase(unittest.TestCase):
         w('Blah blah\r\n')
         w('foo\r\n')
         w('-foo\r\n')
-        w('--foo\r\n')
+        w('\r\n--foo\r\n')
 
         w('Content-Type: multipart/alternative; boundary="bar"\r\n\r\n')
         w('This is a multipart message. Ignore this bit.\r\n')
-        w('--bar\r\n')
+        w('\r\n--bar\r\n')
 
         w('Content-Type: text/plain\r\n\r\n')
         w('Hello, world!\r\n')
         w('\r\n')
         w('Blah blah\r\n')
-        w('--bar\r\n')
+        w('\r\n--bar\r\n')
 
         w('Content-Type: text/html\r\n\r\n')
         w('<b>Hello, world!</b>\r\n')
-        w('--bar--\r\n')
-        w('--foo\r\n')
+        w('\r\n--bar--\r\n')
+        w('\r\n--foo\r\n')
 
         w('Content-Type: text/plain\r\n\r\n')
         w('Last bit\n')
-        w('--foo--\r\n')
+        w('\r\n--foo--\r\n')
         self.fp.seek(0)
 
     def testMultipart(self):
@@ -62,52 +115,120 @@ class MultipartTestCase(unittest.TestCase):
         self.assert_(m is not None)
 
         # skip the first bit
-        p = m.getPart()
+        p = m.getpart()
         self.assert_(p is not None)
         self.assertEqual(p.fp.read(),
             'This is a multipart message. Ignore this bit.\r\n')
 
         # first text/plain
-        p = m.getPart()
+        p = m.getpart()
         self.assert_(p is not None)
         self.assertEqual(p.gettype(), 'text/plain')
         self.assertEqual(p.fp.read(),
             'Hello, world!\r\n\r\nBlah blah\r\nfoo\r\n-foo\r\n')
 
         # sub-multipart
-        p = m.getPart()
+        p = m.getpart()
         self.assert_(p is not None)
         self.assertEqual(p.gettype(), 'multipart/alternative')
 
         # sub-multipart text/plain
-        q = p.getPart()
+        q = p.getpart()
         self.assert_(q is not None)
-        q = p.getPart()
+        q = p.getpart()
         self.assert_(q is not None)
         self.assertEqual(q.gettype(), 'text/plain')
         self.assertEqual(q.fp.read(), 'Hello, world!\r\n\r\nBlah blah\r\n')
 
         # sub-multipart text/html
-        q = p.getPart()
+        q = p.getpart()
         self.assert_(q is not None)
         self.assertEqual(q.gettype(), 'text/html')
         self.assertEqual(q.fp.read(), '<b>Hello, world!</b>\r\n')
 
         # sub-multipart end
-        q = p.getPart()
+        q = p.getpart()
         self.assert_(q is None)
 
         # final text/plain
-        p = m.getPart()
+        p = m.getpart()
         self.assert_(p is not None)
         self.assertEqual(p.gettype(), 'text/plain')
         self.assertEqual(p.fp.read(),
             'Last bit\n')
 
         # end
-        p = m.getPart()
+        p = m.getpart()
         self.assert_(p is None)
 
+    def TestExtraction(self, spec, expected):
+        self.assertEqual(TestMessage(spec).extract_content(), expected)
+
+    def testTextPlain(self):
+        self.TestExtraction('text/plain', ('foo\n', []))
+
+    def testAttachedTextPlain(self):
+        self.TestExtraction("""
+multipart/mixed
+    text/plain
+    text/plain""",
+                  ('foo\n',
+                   [('foo.txt', 'text/plain', 'foo\n')]))
+
+    def testMultipartMixed(self):
+        self.TestExtraction("""
+multipart/mixed
+    text/plain
+    application/pdf""",
+                  ('foo\n',
+                   [('foo.pdf', 'application/pdf', 'foo\n')]))
+
+    def testMultipartAlternative(self):
+        self.TestExtraction("""
+multipart/alternative
+    text/plain
+    application/pdf
+""", ('foo\n', [('foo.pdf', 'application/pdf', 'foo\n')]))
+
+    def testDeepMultipartAlternative(self):
+        self.TestExtraction("""
+multipart/mixed
+    multipart/alternative
+        text/plain
+        application/pdf
+""", ('foo\n', [('foo.pdf', 'application/pdf', 'foo\n')]))
+
+    def testSignedText(self):
+        self.TestExtraction("""
+multipart/signed
+    text/plain
+    application/pgp-signature""", ('foo\n', []))
+
+    def testSignedAttachments(self):
+        self.TestExtraction("""
+multipart/signed
+    multipart/mixed
+        text/plain
+        application/pdf
+    application/pgp-signature""",
+                  ('foo\n',
+                   [('foo.pdf', 'application/pdf', 'foo\n')]))
+
+    def testAttachedSignature(self):
+        self.TestExtraction("""
+multipart/mixed
+    text/plain
+    application/pgp-signature""",
+                  ('foo\n',
+                   [('foo.gpg', 'application/pgp-signature', 'foo\n')]))
+
+    def testMessageRfc822(self):
+        self.TestExtraction("""
+multipart/mixed
+    message/rfc822""",
+                  (None,
+                   [('foo.eml', 'message/rfc822', 'Subject: foo\n\nfoo\n')]))
+
 def test_suite():
     suite = unittest.TestSuite()
     suite.addTest(unittest.makeSuite(MultipartTestCase))