[PATCH] Add SSL support to hg serve, activated via --certificate option

[Brendan Cully]

# HG changeset patch
# User Brendan Cully <brendan at kublai.com>
# Date 1184002536 25200
# Node ID af1a84faa187cab380d0b3043ca6235a4a14079f
# Parent  2192001e4bb489b96bcd8a6b1f2bcd1774c912e1
Add SSL support to hg serve, activated via --certificate option

diff --git a/mercurial/commands.py b/mercurial/commands.py
--- a/mercurial/commands.py
+++ b/mercurial/commands.py
@@ -2464,7 +2464,7 @@ def serve(ui, repo, **opts):
 
     parentui = ui.parentui or ui
     optlist = ("name templates style address port ipv6"
-               " accesslog errorlog webdir_conf")
+               " accesslog errorlog webdir_conf certificate")
     for o in optlist.split():
         if opts[o]:
             parentui.setconfig("web", o, str(opts[o]))
@@ -3072,7 +3072,8 @@ table = {
           ('', 'stdio', None, _('for remote clients')),
           ('t', 'templates', '', _('web templates to use')),
           ('', 'style', '', _('template style to use')),
-          ('6', 'ipv6', None, _('use IPv6 in addition to IPv4'))],
+          ('6', 'ipv6', None, _('use IPv6 in addition to IPv4')),
+          ('', 'certificate', '', _('SSL certificate file'))],
          _('hg serve [OPTION]...')),
     "^status|st":
         (status,
diff --git a/mercurial/hgweb/server.py b/mercurial/hgweb/server.py
--- a/mercurial/hgweb/server.py
+++ b/mercurial/hgweb/server.py
@@ -53,13 +53,16 @@ class _hgwebhandler(object, BaseHTTPServ
                                               self.log_date_time_string(),
                                               format % args))
 
+    def do_write(self):
+        try:
+            self.do_hgweb()
+        except socket.error, inst:
+            if inst[0] != errno.EPIPE:
+                raise
+
     def do_POST(self):
         try:
-            try:
-                self.do_hgweb()
-            except socket.error, inst:
-                if inst[0] != errno.EPIPE:
-                    raise
+            self.do_write()
         except StandardError, inst:
             self._start_response("500 Internal Server Error", [])
             self._write("Internal Server Error")
@@ -164,6 +167,28 @@ class _hgwebhandler(object, BaseHTTPServ
         self.wfile.write(data)
         self.wfile.flush()
 
+class _shgwebhandler(_hgwebhandler):
+    def setup(self):
+        self.connection = self.request
+        self.rfile = socket._fileobject(self.request, "rb", self.rbufsize)
+        self.wfile = socket._fileobject(self.request, "wb", self.wbufsize)
+
+    def do_write(self):
+        from OpenSSL.SSL import SysCallError
+        try:
+            super(_shgwebhandler, self).do_write()
+        except SysCallError, inst:
+            if inst.args[0] != errno.EPIPE:
+                raise
+
+    def handle_one_request(self):
+        from OpenSSL.SSL import SysCallError, ZeroReturnError
+        try:
+            super(_shgwebhandler, self).handle_one_request()
+        except (SysCallError, ZeroReturnError):
+            self.close_connection = True
+            pass
+
 def create_server(ui, repo):
     use_threads = True
 
@@ -176,6 +201,7 @@ def create_server(ui, repo):
     port = int(ui.config("web", "port", 8000))
     use_ipv6 = ui.configbool("web", "ipv6")
     webdir_conf = ui.config("web", "webdir_conf")
+    ssl_cert = ui.config("web", "certificate")
     accesslog = openlog(ui.config("web", "accesslog", "-"), sys.stdout)
     errorlog = openlog(ui.config("web", "errorlog", "-"), sys.stderr)
 
@@ -222,6 +248,19 @@ def create_server(ui, repo):
 
             self.addr, self.port = addr, port
 
+            if ssl_cert:
+                try:
+                    from OpenSSL import SSL
+                    ctx = SSL.Context(SSL.SSLv23_METHOD)
+                except ImportError:
+                    raise util.Abort("SSL support is unavailable")
+                ctx.use_privatekey_file(ssl_cert)
+                ctx.use_certificate_file(ssl_cert)
+                sock = socket.socket(self.address_family, self.socket_type)
+                self.socket = SSL.Connection(ctx, sock)
+                self.server_bind()
+                self.server_activate()
+
     class IPv6HTTPServer(MercurialHTTPServer):
         address_family = getattr(socket, 'AF_INET6', None)
 
@@ -230,10 +269,15 @@ def create_server(ui, repo):
                 raise hg.RepoError(_('IPv6 not available on this system'))
             super(IPv6HTTPServer, self).__init__(*args, **kwargs)
 
+    if ssl_cert:
+        handler = _shgwebhandler
+    else:
+        handler = _hgwebhandler
+
     try:
         if use_ipv6:
-            return IPv6HTTPServer((address, port), _hgwebhandler)
-        else:
-            return MercurialHTTPServer((address, port), _hgwebhandler)
+            return IPv6HTTPServer((address, port), handler)
+        else:
+            return MercurialHTTPServer((address, port), handler)
     except socket.error, inst:
         raise util.Abort(_('cannot start server: %s') % inst.args[1])