import errno from http import client import io import socket from unittest import TestCase from test import support HOST = support.HOST class FakeSocket: def __init__(self, text, fileclass=io.BytesIO): if isinstance(text, str): text = text.encode("ascii") self.text = text self.fileclass = fileclass self.data = b'' def sendall(self, data): self.data += data def makefile(self, mode, bufsize=None): if mode != 'r' and mode != 'rb': raise client.UnimplementedFileMode() return self.fileclass(self.text) class EPipeSocket(FakeSocket): def __init__(self, text, pipe_trigger): # When sendall() is called with pipe_trigger, raise EPIPE. FakeSocket.__init__(self, text) self.pipe_trigger = pipe_trigger def sendall(self, data): if self.pipe_trigger in data: raise socket.error(errno.EPIPE, "gotcha") self.data += data def close(self): pass class NoEOFStringIO(io.BytesIO): """Like StringIO, but raises AssertionError on EOF. This is used below to test that http.client doesn't try to read more from the underlying file than it should. """ def read(self, n=-1): data = io.BytesIO.read(self, n) if data == b'': raise AssertionError('caller tried to read past EOF') return data def readline(self, length=None): data = io.BytesIO.readline(self, length) if data == b'': raise AssertionError('caller tried to read past EOF') return data class HeaderTests(TestCase): def test_auto_headers(self): # Some headers are added automatically, but should not be added by # .request() if they are explicitly set. class HeaderCountingBuffer(list): def __init__(self): self.count = {} def append(self, item): kv = item.split(b':') if len(kv) > 1: # item is a 'Key: Value' header string lcKey = kv[0].decode('ascii').lower() self.count.setdefault(lcKey, 0) self.count[lcKey] += 1 list.append(self, item) for explicit_header in True, False: for header in 'Content-length', 'Host', 'Accept-encoding': conn = client.HTTPConnection('example.com') conn.sock = FakeSocket('blahblahblah') conn._buffer = HeaderCountingBuffer() body = 'spamspamspam' headers = {} if explicit_header: headers[header] = str(len(body)) conn.request('POST', '/', body, headers) self.assertEqual(conn._buffer.count[header.lower()], 1) class BasicTest(TestCase): def test_status_lines(self): # Test HTTP status lines body = "HTTP/1.1 200 Ok\r\n\r\nText" sock = FakeSocket(body) resp = client.HTTPResponse(sock) resp.begin() self.assertEqual(resp.read(), b"Text") self.assertTrue(resp.isclosed()) body = "HTTP/1.1 400.100 Not Ok\r\n\r\nText" sock = FakeSocket(body) resp = client.HTTPResponse(sock) self.assertRaises(client.BadStatusLine, resp.begin) def test_partial_reads(self): # if we have a lenght, the system knows when to close itself # same behaviour than when we read the whole thing with read() body = "HTTP/1.1 200 Ok\r\nContent-Length: 4\r\n\r\nText" sock = FakeSocket(body) resp = client.HTTPResponse(sock) resp.begin() self.assertEqual(resp.read(2), b'Te') self.assertFalse(resp.isclosed()) self.assertEqual(resp.read(2), b'xt') self.assertTrue(resp.isclosed()) def test_host_port(self): # Check invalid host_port for hp in ("www.python.org:abc", "www.python.org:"): self.assertRaises(client.InvalidURL, client.HTTPConnection, hp) for hp, h, p in (("[fe80::207:e9ff:fe9b]:8000", "fe80::207:e9ff:fe9b", 8000), ("www.python.org:80", "www.python.org", 80), ("www.python.org", "www.python.org", 80), ("[fe80::207:e9ff:fe9b]", "fe80::207:e9ff:fe9b", 80)): c = client.HTTPConnection(hp) self.assertEqual(h, c.host) self.assertEqual(p, c.port) def test_response_headers(self): # test response with multiple message headers with the same field name. text = ('HTTP/1.1 200 OK\r\n' 'Set-Cookie: Customer="WILE_E_COYOTE"; ' 'Version="1"; Path="/acme"\r\n' 'Set-Cookie: Part_Number="Rocket_Launcher_0001"; Version="1";' ' Path="/acme"\r\n' '\r\n' 'No body\r\n') hdr = ('Customer="WILE_E_COYOTE"; Version="1"; Path="/acme"' ', ' 'Part_Number="Rocket_Launcher_0001"; Version="1"; Path="/acme"') s = FakeSocket(text) r = client.HTTPResponse(s) r.begin() cookies = r.getheader("Set-Cookie") self.assertEqual(cookies, hdr) def test_read_head(self): # Test that the library doesn't attempt to read any data # from a HEAD request. (Tickles SF bug #622042.) sock = FakeSocket( 'HTTP/1.1 200 OK\r\n' 'Content-Length: 14432\r\n' '\r\n', NoEOFStringIO) resp = client.HTTPResponse(sock, method="HEAD") resp.begin() if resp.read(): self.fail("Did not expect response from HEAD request") def test_send_file(self): expected = (b'GET /foo HTTP/1.1\r\nHost: example.com\r\n' b'Accept-Encoding: identity\r\nContent-Length:') body = open(__file__, 'rb') conn = client.HTTPConnection('example.com') sock = FakeSocket(body) conn.sock = sock conn.request('GET', '/foo', body) self.assertTrue(sock.data.startswith(expected), '%r != %r' % (sock.data[:len(expected)], expected)) def test_chunked(self): chunked_start = ( 'HTTP/1.1 200 OK\r\n' 'Transfer-Encoding: chunked\r\n\r\n' 'a\r\n' 'hello worl\r\n' '1\r\n' 'd\r\n' ) sock = FakeSocket(chunked_start + '0\r\n') resp = client.HTTPResponse(sock, method="GET") resp.begin() self.assertEquals(resp.read(), b'hello world') resp.close() for x in ('', 'foo\r\n'): sock = FakeSocket(chunked_start + x) resp = client.HTTPResponse(sock, method="GET") resp.begin() try: resp.read() except client.IncompleteRead as i: self.assertEquals(i.partial, b'hello world') self.assertEqual(repr(i),'IncompleteRead(11 bytes read)') self.assertEqual(str(i),'IncompleteRead(11 bytes read)') else: self.fail('IncompleteRead expected') finally: resp.close() def test_negative_content_length(self): sock = FakeSocket( 'HTTP/1.1 200 OK\r\nContent-Length: -1\r\n\r\nHello\r\n') resp = client.HTTPResponse(sock, method="GET") resp.begin() self.assertEquals(resp.read(), b'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 = client.HTTPResponse(sock, method="GET") resp.begin() try: resp.read() except client.IncompleteRead as i: self.assertEquals(i.partial, b'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() def test_epipe(self): sock = EPipeSocket( "HTTP/1.0 401 Authorization Required\r\n" "Content-type: text/html\r\n" "WWW-Authenticate: Basic realm=\"example\"\r\n", b"Content-Length") conn = client.HTTPConnection("example.com") conn.sock = sock self.assertRaises(socket.error, lambda: conn.request("PUT", "/url", "body")) resp = conn.getresponse() self.assertEqual(401, resp.status) self.assertEqual("Basic realm=\"example\"", resp.getheader("www-authenticate")) class OfflineTest(TestCase): def test_responses(self): self.assertEquals(client.responses[client.NOT_FOUND], "Not Found") class TimeoutTest(TestCase): PORT = None def setUp(self): self.serv = socket.socket(socket.AF_INET, socket.SOCK_STREAM) TimeoutTest.PORT = support.bind_port(self.serv) self.serv.listen(5) def tearDown(self): self.serv.close() self.serv = None def testTimeoutAttribute(self): # This will prove that the timeout gets through HTTPConnection # and into the socket. # default -- use global socket timeout self.assert_(socket.getdefaulttimeout() is None) socket.setdefaulttimeout(30) try: httpConn = client.HTTPConnection(HOST, TimeoutTest.PORT) httpConn.connect() finally: socket.setdefaulttimeout(None) self.assertEqual(httpConn.sock.gettimeout(), 30) httpConn.close() # no timeout -- do not use global socket default self.assert_(socket.getdefaulttimeout() is None) socket.setdefaulttimeout(30) try: httpConn = client.HTTPConnection(HOST, TimeoutTest.PORT, timeout=None) httpConn.connect() finally: socket.setdefaulttimeout(None) self.assertEqual(httpConn.sock.gettimeout(), None) httpConn.close() # a value httpConn = client.HTTPConnection(HOST, TimeoutTest.PORT, timeout=30) httpConn.connect() self.assertEqual(httpConn.sock.gettimeout(), 30) httpConn.close() class HTTPSTimeoutTest(TestCase): # XXX Here should be tests for HTTPS, there isn't any right now! def test_attributes(self): # simple test to check it's storing it if hasattr(client, 'HTTPSConnection'): h = client.HTTPSConnection(HOST, TimeoutTest.PORT, timeout=30) self.assertEqual(h.timeout, 30) class RequestBodyTest(TestCase): """Test cases where a request includes a message body.""" def setUp(self): self.conn = client.HTTPConnection('example.com') self.conn.sock = self.sock = FakeSocket("") self.conn.sock = self.sock def get_headers_and_fp(self): f = io.BytesIO(self.sock.data) f.readline() # read the request line message = client.parse_headers(f) return message, f def test_manual_content_length(self): # Set an incorrect content-length so that we can verify that # it will not be over-ridden by the library. self.conn.request("PUT", "/url", "body", {"Content-Length": "42"}) message, f = self.get_headers_and_fp() self.assertEqual("42", message.get("content-length")) self.assertEqual(4, len(f.read())) def test_ascii_body(self): self.conn.request("PUT", "/url", "body") message, f = self.get_headers_and_fp() self.assertEqual("text/plain", message.get_content_type()) self.assertEqual(None, message.get_charset()) self.assertEqual("4", message.get("content-length")) self.assertEqual(b'body', f.read()) def test_latin1_body(self): self.conn.request("PUT", "/url", "body\xc1") message, f = self.get_headers_and_fp() self.assertEqual("text/plain", message.get_content_type()) self.assertEqual(None, message.get_charset()) self.assertEqual("5", message.get("content-length")) self.assertEqual(b'body\xc1', f.read()) def test_bytes_body(self): self.conn.request("PUT", "/url", b"body\xc1") message, f = self.get_headers_and_fp() self.assertEqual("text/plain", message.get_content_type()) self.assertEqual(None, message.get_charset()) self.assertEqual("5", message.get("content-length")) self.assertEqual(b'body\xc1', f.read()) def test_file_body(self): f = open(support.TESTFN, "w") f.write("body") f.close() f = open(support.TESTFN) self.conn.request("PUT", "/url", f) message, f = self.get_headers_and_fp() self.assertEqual("text/plain", message.get_content_type()) self.assertEqual(None, message.get_charset()) self.assertEqual("4", message.get("content-length")) self.assertEqual(b'body', f.read()) def test_binary_file_body(self): f = open(support.TESTFN, "wb") f.write(b"body\xc1") f.close() f = open(support.TESTFN, "rb") self.conn.request("PUT", "/url", f) message, f = self.get_headers_and_fp() self.assertEqual("text/plain", message.get_content_type()) self.assertEqual(None, message.get_charset()) self.assertEqual("5", message.get("content-length")) self.assertEqual(b'body\xc1', f.read()) def test_main(verbose=None): support.run_unittest(HeaderTests, OfflineTest, BasicTest, TimeoutTest, HTTPSTimeoutTest, RequestBodyTest) if __name__ == '__main__': test_main()