rpms/m2crypto/devel m2crypto-0.16-timeouts.patch, NONE, 1.1 m2crypto.spec, 1.28, 1.29

fedora-cvs-commits at redhat.com fedora-cvs-commits at redhat.com
Mon Oct 23 21:23:56 UTC 2006


Author: mitr

Update of /cvs/dist/rpms/m2crypto/devel
In directory cvs.devel.redhat.com:/tmp/cvs-serv16978

Modified Files:
	m2crypto.spec 
Added Files:
	m2crypto-0.16-timeouts.patch 
Log Message:
* Mon Oct 23 2006 Miloslav Trmac <mitr at redhat.com> - 0.16-6
- Add support for SSL socket timeouts (based on a patch by James Bowes
  <jbowes at redhat.com>)
  Resolves: #219966


m2crypto-0.16-timeouts.patch:
 M2Crypto/SSL/Connection.py |   43 +++---
 M2Crypto/SSL/__init__.py   |    5 
 SWIG/_ssl.i                |  285 +++++++++++++++++++++++++++++++++------------
 tests/test_ssl.py          |   47 +++++++
 4 files changed, 289 insertions(+), 91 deletions(-)

--- NEW FILE m2crypto-0.16-timeouts.patch ---
diff -ur m2crypto/M2Crypto/SSL/Connection.py m2crypto-0.16/M2Crypto/SSL/Connection.py
--- m2crypto/M2Crypto/SSL/Connection.py	2006-05-11 00:43:47.000000000 +0200
+++ m2crypto-0.16/M2Crypto/SSL/Connection.py	2006-10-23 18:55:39.000000000 +0200
@@ -36,9 +36,11 @@
             self.socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
             self.socket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
         self._fileno = self.socket.fileno()
-        
-        self.blocking = self.socket.gettimeout()
-        
+
+        self._timeout = self.socket.gettimeout()
+        if self._timeout is None:
+            self._timeout = -1.0
+
     def __del__(self):
         if getattr(self, 'sslbio', None):
             self.m2_bio_free(self.sslbio)
@@ -122,7 +124,7 @@
         m2.ssl_set_accept_state(self.ssl)
 
     def accept_ssl(self):
-        return m2.ssl_accept(self.ssl)
+        return m2.ssl_accept(self.ssl, self._timeout)
 
     def accept(self):
         """Accept an SSL connection. The return value is a pair (ssl, addr) where
@@ -144,7 +146,7 @@
         m2.ssl_set_connect_state(self.ssl)
 
     def connect_ssl(self):
-        return m2.ssl_connect(self.ssl)
+        return m2.ssl_connect(self.ssl, self._timeout)
 
     def connect(self, addr):
         self.socket.connect(addr)
@@ -171,7 +173,7 @@
         return m2.ssl_pending(self.ssl)
 
     def _write_bio(self, data):
-        return m2.ssl_write(self.ssl, data)
+        return m2.ssl_write(self.ssl, data, self._timeout)
 
     def _write_nbio(self, data):
         return m2.ssl_write_nbio(self.ssl, data)
@@ -179,7 +181,7 @@
     def _read_bio(self, size=1024):
         if size <= 0:
             raise ValueError, 'size <= 0'
-        return m2.ssl_read(self.ssl, size)
+        return m2.ssl_read(self.ssl, size, self._timeout)
 
     def _read_nbio(self, size=1024):
         if size <= 0:
@@ -187,13 +189,13 @@
         return m2.ssl_read_nbio(self.ssl, size)
 
     def write(self, data):
-        if self.blocking:
+        if self._timeout != 0.0:
             return self._write_bio(data)
         return self._write_nbio(data)
     sendall = send = write
     
     def read(self, size=1024):
-        if self.blocking:
+        if self._timeout != 0.0:
             return self._read_bio(size)
         return self._read_nbio(size)
     recv = read
@@ -201,7 +203,17 @@
     def setblocking(self, mode):
         """Set this connection's underlying socket to _mode_."""
         self.socket.setblocking(mode)
-        self.blocking = mode
+        if mode:
+            self._timeout = -1.0
+        else:
+            self._timeout = 0.0
+
+    def settimeout(self, timeout):
+        """Set this connection's underlying socket's timeout to _timeout_."""
+        self.socket.settimeout(timeout)
+        self._timeout = timeout
+        if self._timeout is None:
+            self._timeout = -1.0
 
     def fileno(self):
         return self.socket.fileno()
@@ -280,15 +292,8 @@
         """Set the cipher suites for this connection."""
         return m2.ssl_set_cipher_list(self.ssl, cipher_list)
 
-    def makefile(self, mode='rb', bufsize='ignored'):
-        r = 'r' in mode or '+' in mode
-        w = 'w' in mode or 'a' in mode or '+' in mode
-        b = 'b' in mode
-        m2mode = ['', 'r'][r] + ['', 'w'][w] + ['', 'b'][b]      
-        # XXX Need to dup().
-        bio = BIO.BIO(self.sslbio, _close_cb=self.close)
-        m2.bio_do_handshake(bio._ptr())
-        return BIO.IOBuffer(bio, m2mode)
+    def makefile(self, mode='rb', bufsize=-1):
+        return socket._fileobject(self, mode, bufsize)
 
     def getsockname(self):
         return self.socket.getsockname()
diff -ur m2crypto/M2Crypto/SSL/__init__.py m2crypto-0.16/M2Crypto/SSL/__init__.py
--- m2crypto/M2Crypto/SSL/__init__.py	2006-03-20 20:26:28.000000000 +0100
+++ m2crypto-0.16/M2Crypto/SSL/__init__.py	2006-10-23 19:53:10.000000000 +0200
@@ -2,11 +2,14 @@
 
 Copyright (c) 1999-2004 Ng Pheng Siong. All rights reserved."""
 
+import socket
+
 # M2Crypto
 from M2Crypto import m2
 
 class SSLError(Exception): pass
-m2.ssl_init(SSLError)
+class SSLTimeoutError(SSLError, socket.timeout): pass
+m2.ssl_init(SSLError, SSLTimeoutError)
 
 # M2Crypto.SSL
 from Cipher import Cipher, Cipher_Stack
diff -ur m2crypto/SWIG/_ssl.i m2crypto-0.16/SWIG/_ssl.i
--- m2crypto/SWIG/_ssl.i	2006-04-01 00:11:55.000000000 +0200
+++ m2crypto-0.16/SWIG/_ssl.i	2006-10-23 20:00:36.000000000 +0200
@@ -8,10 +8,13 @@
 
 %{
 #include <pythread.h>
+#include <limits.h>
 #include <openssl/bio.h>
 #include <openssl/dh.h>
 #include <openssl/ssl.h>
 #include <openssl/x509.h>
+#include <poll.h>
+#include <sys/time.h>
 %}
 
 %apply Pointer NONNULL { SSL_CTX * };
@@ -142,6 +145,11 @@
 %rename(ssl_session_get_timeout) SSL_SESSION_get_timeout;
 extern long SSL_SESSION_get_timeout(CONST SSL_SESSION *);
 
+extern PyObject *ssl_accept(SSL *ssl, double timeout = -1);
+extern PyObject *ssl_connect(SSL *ssl, double timeout = -1);
+extern PyObject *ssl_read(SSL *ssl, int num, double timeout = -1);
+extern int ssl_write(SSL *ssl, PyObject *blob, double timeout = -1);
+
 %constant int ssl_error_none              = SSL_ERROR_NONE;
 %constant int ssl_error_ssl               = SSL_ERROR_SSL;
 %constant int ssl_error_want_read         = SSL_ERROR_WANT_READ;
@@ -192,14 +200,19 @@
 %constant int SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER = SSL_MODE_ENABLE_PARTIAL_WRITE;
 %constant int SSL_MODE_AUTO_RETRY           = SSL_MODE_AUTO_RETRY;
 
+%ignore ssl_handle_error;
+%ignore ssl_sleep_with_timeout;
 %inline %{
 static PyObject *_ssl_err;
+static PyObject *_ssl_timeout_err;
 
-void ssl_init(PyObject *ssl_err) {
+void ssl_init(PyObject *ssl_err, PyObject *ssl_timeout_err) {
     SSL_library_init();
     SSL_load_error_strings();
     Py_INCREF(ssl_err);
+    Py_INCREF(ssl_timeout_err);
     _ssl_err = ssl_err;
+    _ssl_timeout_err = ssl_timeout_err;
 }
 
 void ssl_ctx_passphrase_callback(SSL_CTX *ctx, PyObject *pyfunc) {
@@ -353,36 +366,139 @@
     return ret;
 }
 
-PyObject *ssl_accept(SSL *ssl) {
+static void ssl_handle_error(int ssl_err, int ret) {
+    int err;
+
+    switch (ssl_err) {
+        case SSL_ERROR_SSL:
+            PyErr_SetString(_ssl_err,
+                            ERR_reason_error_string(ERR_get_error()));
+            break;
+        case SSL_ERROR_SYSCALL:
+            err = ERR_get_error();
+            if (err)
+                PyErr_SetString(_ssl_err, ERR_reason_error_string(err));
+            else if (ret == 0)
+                PyErr_SetString(_ssl_err, "unexpected eof");
+            else if (ret == -1)
+                PyErr_SetFromErrno(_ssl_err);
+            else
+                assert(0);
+            break;
+		default:
+            PyErr_SetString(_ssl_err, "unexpected SSL error");
+     }
+}
+
+static int ssl_sleep_with_timeout(SSL *ssl, const struct timeval *start,
+                                  double timeout, int ssl_err) {
+    PyGILState_STATE gilstate;
+    struct pollfd fd;
+    struct timeval tv;
+    int ms;
+
+    assert(timeout > 0);
+ again:
+    gettimeofday(&tv, NULL);
+    /* tv >= start */
+    if ((timeout + start->tv_sec - tv.tv_sec) > INT_MAX / 1000)
+        ms = -1;
+    else {
+        int fract;
+
+        ms = ((start->tv_sec + (int)timeout) - tv.tv_sec) * 1000;
+        fract = (start->tv_usec + (timeout - (int)timeout) * 1000000
+                 - tv.tv_usec + 999) / 1000;
+        if (ms > 0 && fract > INT_MAX - ms)
+            ms = -1;
+        else {
+            ms += fract;
+            if (ms <= 0)
+                goto timeout;
+        }
+    }
+    switch (ssl_err) {
+	    case SSL_ERROR_WANT_READ:
+            fd.fd = SSL_get_rfd(ssl);
+            fd.events = POLLIN;
+            break;
+
+	    case SSL_ERROR_WANT_WRITE:
+            fd.fd = SSL_get_wfd(ssl);
+            fd.events = POLLOUT;
+            break;
+
+	    case SSL_ERROR_WANT_X509_LOOKUP:
+            return 0; /* FIXME: is this correct? */
+
+	    default:
+            assert(0);
+    }
+    if (fd.fd == -1) {
+        gilstate = PyGILState_Ensure();
+        PyErr_SetString(_ssl_err, "timeout on a non-FD SSL");
+        PyGILState_Release(gilstate);
+        return -1;
+    }
+    switch (poll(&fd, 1, ms)) {
+    	case 1:
+            return 0;
+    	case 0:
+            goto timeout;
+    	case -1:
+            if (errno == EINTR)
+                goto again;
+            gilstate = PyGILState_Ensure();
+            PyErr_SetFromErrno(_ssl_err);
+            PyGILState_Release(gilstate);
+            return -1;
+    }
+    return 0;
+
+ timeout:
+    gilstate = PyGILState_Ensure();
+    PyErr_SetNone(_ssl_timeout_err);
+    PyGILState_Release(gilstate);
+    return -1;
+}
+
+PyObject *ssl_accept(SSL *ssl, double timeout) {
     PyObject *obj = NULL;
-    int r, err;
+    int r, ssl_err;
+    struct timeval tv;
     PyGILState_STATE gilstate;
 
+    if (timeout > 0)
+        gettimeofday(&tv, NULL);
+ again:
     r = SSL_accept(ssl);
+    ssl_err = SSL_get_error(ssl, r);
 
     gilstate = PyGILState_Ensure();
 
-    switch (SSL_get_error(ssl, r)) {
+    switch (ssl_err) {
         case SSL_ERROR_NONE:
         case SSL_ERROR_ZERO_RETURN:
             obj = PyInt_FromLong((long)1);
             break;
         case SSL_ERROR_WANT_WRITE:
         case SSL_ERROR_WANT_READ:
-            obj = PyInt_FromLong((long)0);
-            break;
-        case SSL_ERROR_SSL:
-            PyErr_SetString(_ssl_err, ERR_reason_error_string(ERR_get_error()));
+            if (timeout <= 0) {
+                obj = PyInt_FromLong((long)0);
+                break;
+            }
+
+            PyGILState_Release(gilstate);
+            if (ssl_sleep_with_timeout(ssl, &tv, timeout, ssl_err) == 0)
+                goto again;
+            gilstate = PyGILState_Ensure();
+
             obj = NULL;
             break;
+
+        case SSL_ERROR_SSL:
         case SSL_ERROR_SYSCALL:
-            err = ERR_get_error();
-            if (err)
-                PyErr_SetString(_ssl_err, ERR_reason_error_string(err));
-            else if (r == 0)
-                PyErr_SetString(_ssl_err, "unexpected eof");
-            else if (r == -1)
-                PyErr_SetFromErrno(_ssl_err);
+            ssl_handle_error(ssl_err, r);
             obj = NULL;
             break;
     }
@@ -392,36 +508,43 @@
     return obj;
 }
 
-PyObject *ssl_connect(SSL *ssl) {
+PyObject *ssl_connect(SSL *ssl, double timeout) {
     PyObject *obj = NULL;
-    int r, err;
+    int r, ssl_err;
+    struct timeval tv;
     PyGILState_STATE gilstate;
 
+    if (timeout > 0)
+        gettimeofday(&tv, NULL);
+ again:
     r = SSL_connect(ssl);
+    ssl_err = SSL_get_error(ssl, r);
 
     gilstate = PyGILState_Ensure();
     
-    switch (SSL_get_error(ssl, r)) {
+    switch (ssl_err) {
         case SSL_ERROR_NONE:
         case SSL_ERROR_ZERO_RETURN:
             obj = PyInt_FromLong((long)1);
             break;
         case SSL_ERROR_WANT_WRITE:
         case SSL_ERROR_WANT_READ:
-            obj = PyInt_FromLong((long)0);
-            break;
-        case SSL_ERROR_SSL:
-            PyErr_SetString(_ssl_err, ERR_reason_error_string(ERR_get_error()));
+            if (timeout <= 0) {
+                obj = PyInt_FromLong((long)0);
+                break;
+            }
+
+            PyGILState_Release(gilstate);
+            if (ssl_sleep_with_timeout(ssl, &tv, timeout, ssl_err) == 0)
+                goto again;
+            gilstate = PyGILState_Ensure();
+
             obj = NULL;
             break;
+
+        case SSL_ERROR_SSL:
         case SSL_ERROR_SYSCALL:
-            err = ERR_get_error();
-            if (err)
-                PyErr_SetString(_ssl_err, ERR_reason_error_string(err));
-            else if (r == 0)
-                PyErr_SetString(_ssl_err, "unexpected eof");
-            else if (r == -1)
-                PyErr_SetFromErrno(_ssl_err);
+            ssl_handle_error(ssl_err, r);
             obj = NULL;
             break;
     }
@@ -435,10 +558,11 @@
     SSL_set_shutdown(ssl, mode);
 }
 
-PyObject *ssl_read(SSL *ssl, int num) {
+PyObject *ssl_read(SSL *ssl, int num, double timeout) {
     PyObject *obj = NULL;
     void *buf;
-    int r, err;
+    int r;
+    struct timeval tv;
     PyGILState_STATE gilstate;
 
     gilstate = PyGILState_Ensure();
@@ -451,36 +575,48 @@
 
     PyGILState_Release(gilstate);
 
+    if (timeout > 0)
+        gettimeofday(&tv, NULL);
+ again:
     r = SSL_read(ssl, buf, num);
 
     gilstate = PyGILState_Ensure();
 
-    switch (SSL_get_error(ssl, r)) {
-        case SSL_ERROR_NONE:
-        case SSL_ERROR_ZERO_RETURN:
-            buf = PyMem_Realloc(buf, r);
-            obj = PyString_FromStringAndSize(buf, r);
-            break;
-        case SSL_ERROR_WANT_WRITE:
-        case SSL_ERROR_WANT_READ:
-        case SSL_ERROR_WANT_X509_LOOKUP:
-            Py_INCREF(Py_None);
-            obj = Py_None;
-            break;
-        case SSL_ERROR_SSL:
-            PyErr_SetString(_ssl_err, ERR_reason_error_string(ERR_get_error()));
-            obj = NULL;
-            break;
-        case SSL_ERROR_SYSCALL:
-            err = ERR_get_error();
-            if (err)
-                PyErr_SetString(_ssl_err, ERR_reason_error_string(err));
-            else if (r == 0)
-                PyErr_SetString(_ssl_err, "unexpected eof");
-            else if (r == -1)
-                PyErr_SetFromErrno(_ssl_err);
-            obj = NULL;
-            break;
+    if (r >= 0) {
+        buf = PyMem_Realloc(buf, r);
+        obj = PyString_FromStringAndSize(buf, r);
+    } else {
+        int ssl_err;
+
+        ssl_err = SSL_get_error(ssl, r);
+        switch (ssl_err) {
+            case SSL_ERROR_NONE:
+            case SSL_ERROR_ZERO_RETURN:
+                assert(0);
+
+            case SSL_ERROR_WANT_WRITE:
+            case SSL_ERROR_WANT_READ:
+            case SSL_ERROR_WANT_X509_LOOKUP:
+                if (timeout <= 0) {
+                    Py_INCREF(Py_None);
+                    obj = Py_None;
+                    break;
+                }
+
+                PyGILState_Release(gilstate);
+                if (ssl_sleep_with_timeout(ssl, &tv, timeout, ssl_err) == 0)
+                    goto again;
+                gilstate = PyGILState_Ensure();
+
+                obj = NULL;
+                break;
+
+            case SSL_ERROR_SSL:
+            case SSL_ERROR_SYSCALL:
+                ssl_handle_error(ssl_err, r);
+                obj = NULL;
+                break;
+        }
     }
     PyMem_Free(buf);
 
@@ -543,9 +679,10 @@
     return obj;
 }
 
-int ssl_write(SSL *ssl, PyObject *blob) {
+int ssl_write(SSL *ssl, PyObject *blob, double timeout) {
     const void *buf;
-    int len, r, err, ret;
+    int len, r, ssl_err, ret;
+    struct timeval tv;
     PyGILState_STATE gilstate;
 
     gilstate = PyGILState_Ensure();
@@ -556,12 +693,16 @@
     }
 
     PyGILState_Release(gilstate);
-    
+
+    if (timeout > 0)
+        gettimeofday(&tv, NULL);
+ again:
     r = SSL_write(ssl, buf, len);
+    ssl_err = SSL_get_error(ssl, r);
 
     gilstate = PyGILState_Ensure();
 
-    switch (SSL_get_error(ssl, r)) {
+    switch (ssl_err) {
         case SSL_ERROR_NONE:
         case SSL_ERROR_ZERO_RETURN:
             ret = r;
@@ -569,20 +710,22 @@
         case SSL_ERROR_WANT_WRITE:
         case SSL_ERROR_WANT_READ:
         case SSL_ERROR_WANT_X509_LOOKUP:
+            if (timeout <= 0) {
+                ret = -1;
+                break;
+            }
+
+            PyGILState_Release(gilstate);
+            if (ssl_sleep_with_timeout(ssl, &tv, timeout, ssl_err) == 0)
+                goto again;
+            gilstate = PyGILState_Ensure();
+
             ret = -1;
             break;
+
         case SSL_ERROR_SSL:
-            PyErr_SetString(_ssl_err, ERR_reason_error_string(ERR_get_error()));
-            ret = -1;
-            break;
         case SSL_ERROR_SYSCALL:
-            err = ERR_get_error();
-            if (err)
-                PyErr_SetString(_ssl_err, ERR_reason_error_string(ERR_get_error()));
-            else if (r == 0)
-                PyErr_SetString(_ssl_err, "unexpected eof");
-            else if (r == -1)
-                PyErr_SetFromErrno(_ssl_err);
+            ssl_handle_error(ssl_err, r);
         default:
             ret = -1;
     }
diff -ur m2crypto/tests/test_ssl.py m2crypto-0.16/tests/test_ssl.py
--- m2crypto/tests/test_ssl.py	2006-10-22 01:22:57.000000000 +0200
+++ m2crypto-0.16/tests/test_ssl.py	2006-10-23 20:14:46.000000000 +0200
@@ -631,6 +631,53 @@
             self.stop_server(pid)
         self.failIf(string.find(data, 's_server -quiet -www') == -1)
 
+    def test_timeout(self):
+        pid = self.start_server(self.args)
+        try:
+            ctx = SSL.Context()
+            s = SSL.Connection(ctx)
+            # Just a really small number so we can timeout
+            s.settimeout(0.000000000000000000000000000001)
+            self.assertRaises(SSL.SSLTimeoutError, s.connect, self.srv_addr)
+            s.close()
+        finally:
+            self.stop_server(pid)
+
+    def test_makefile_timeout(self):
+        # httpslib uses makefile to read the response
+        pid = self.start_server(self.args)
+        try:
+            from M2Crypto import httpslib
+            c = httpslib.HTTPS(srv_host, srv_port)
+            c.putrequest('GET', '/')
+            c.putheader('Accept', 'text/html')
+            c.putheader('Accept', 'text/plain')
+            c.endheaders()
+            c._conn.sock.settimeout(100)
+            err, msg, headers = c.getreply()
+            assert err == 200, err
+            f = c.getfile()
+            data = f.read()
+            c.close()
+        finally:
+            self.stop_server(pid)
+        self.failIf(string.find(data, 's_server -quiet -www') == -1)
+
+    def test_makefile_timeout_fires(self):
+        pid = self.start_server(self.args)
+        try:
+            from M2Crypto import httpslib
+            c = httpslib.HTTPS(srv_host, srv_port)
+            c.putrequest('GET', '/')
+            c.putheader('Accept', 'text/html')
+            c.putheader('Accept', 'text/plain')
+            c.endheaders()
+            c._conn.sock.settimeout(0.0000000001)
+            self.assertRaises(socket.timeout, c.getreply)
+            c.close()
+        finally:
+            self.stop_server(pid)
+
     def test_twisted_wrapper(self):
         #
         # LEAK ALERT!


Index: m2crypto.spec
===================================================================
RCS file: /cvs/dist/rpms/m2crypto/devel/m2crypto.spec,v
retrieving revision 1.28
retrieving revision 1.29
diff -u -r1.28 -r1.29
--- m2crypto.spec	20 Oct 2006 17:26:48 -0000	1.28
+++ m2crypto.spec	23 Oct 2006 21:23:54 -0000	1.29
@@ -3,10 +3,11 @@
 Summary: Support for using OpenSSL in python scripts
 Name: m2crypto
 Version: 0.16
-Release: 5%{?dist}
+Release: 6%{?dist}
 Source0: http://wiki.osafoundation.org/pub/Projects/MeTooCrypto/m2crypto-%{version}.tar.gz
 Patch0: m2crypto-0.16-m2urllib2.patch
 Patch1: m2crypto-0.16-proxy-connect.patch
+Patch2: m2crypto-0.16-timeouts.patch
 License: BSDish
 Group: System Environment/Libraries
 URL: http://wiki.osafoundation.org/bin/view/Projects/MeTooCrypto
@@ -22,6 +23,7 @@
 %setup -q
 %patch0 -p1
 %patch1 -p0 -b .proxy-connect
+%patch2 -p1
 
 # Red Hat opensslconf.h #includes an architecture-specific file, but SWIG
 # doesn't follow the #include.
@@ -71,6 +73,11 @@
 %{python_sitearch}/M2Crypto
 
 %changelog
+* Mon Oct 23 2006 Miloslav Trmac <mitr at redhat.com> - 0.16-6
+- Add support for SSL socket timeouts (based on a patch by James Bowes
+  <jbowes at redhat.com>)
+  Resolves: #219966
+
 * Fri Oct 20 2006 Miloslav Trmac <mitr at redhat.com> - 0.16-5
 - Backport the urllib2 wrapper (code by James Bowes <jbowes at redhat.com>)
   Resolves: #210956




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