add hg and python

1 files changed, 298 insertions, 0 deletions

diff --git a/sys/lib/python/mercurial/hgweb/server.py b/sys/lib/python/mercurial/hgweb/server.py
new file mode 100644
index 000000000..a14bc757f
--- /dev/null
+++ b/sys/lib/python/mercurial/hgweb/server.py
@@ -0,0 +1,298 @@
+# hgweb/server.py - The standalone hg web server.
+#
+# Copyright 21 May 2005 - (c) 2005 Jake Edge <jake@edge2.net>
+# Copyright 2005-2007 Matt Mackall <mpm@selenic.com>
+#
+# This software may be used and distributed according to the terms of the
+# GNU General Public License version 2, incorporated herein by reference.
+
+import os, sys, errno, urllib, BaseHTTPServer, socket, SocketServer, traceback
+from mercurial import hg, util, error
+from hgweb_mod import hgweb
+from hgwebdir_mod import hgwebdir
+from mercurial.i18n import _
+
+def _splitURI(uri):
+    """ Return path and query splited from uri
+
+    Just like CGI environment, the path is unquoted, the query is
+    not.
+    """
+    if '?' in uri:
+        path, query = uri.split('?', 1)
+    else:
+        path, query = uri, ''
+    return urllib.unquote(path), query
+
+class _error_logger(object):
+    def __init__(self, handler):
+        self.handler = handler
+    def flush(self):
+        pass
+    def write(self, str):
+        self.writelines(str.split('\n'))
+    def writelines(self, seq):
+        for msg in seq:
+            self.handler.log_error("HG error:  %s", msg)
+
+class _hgwebhandler(BaseHTTPServer.BaseHTTPRequestHandler):
+
+    url_scheme = 'http'
+
+    def __init__(self, *args, **kargs):
+        self.protocol_version = 'HTTP/1.1'
+        BaseHTTPServer.BaseHTTPRequestHandler.__init__(self, *args, **kargs)
+
+    def _log_any(self, fp, format, *args):
+        fp.write("%s - - [%s] %s\n" % (self.client_address[0],
+                                       self.log_date_time_string(),
+                                       format % args))
+        fp.flush()
+
+    def log_error(self, format, *args):
+        self._log_any(self.server.errorlog, format, *args)
+
+    def log_message(self, format, *args):
+        self._log_any(self.server.accesslog, 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:
+            self.do_write()
+        except StandardError:
+            self._start_response("500 Internal Server Error", [])
+            self._write("Internal Server Error")
+            tb = "".join(traceback.format_exception(*sys.exc_info()))
+            self.log_error("Exception happened during processing "
+                           "request '%s':\n%s", self.path, tb)
+
+    def do_GET(self):
+        self.do_POST()
+
+    def do_hgweb(self):
+        path, query = _splitURI(self.path)
+
+        env = {}
+        env['GATEWAY_INTERFACE'] = 'CGI/1.1'
+        env['REQUEST_METHOD'] = self.command
+        env['SERVER_NAME'] = self.server.server_name
+        env['SERVER_PORT'] = str(self.server.server_port)
+        env['REQUEST_URI'] = self.path
+        env['SCRIPT_NAME'] = self.server.prefix
+        env['PATH_INFO'] = path[len(self.server.prefix):]
+        env['REMOTE_HOST'] = self.client_address[0]
+        env['REMOTE_ADDR'] = self.client_address[0]
+        if query:
+            env['QUERY_STRING'] = query
+
+        if self.headers.typeheader is None:
+            env['CONTENT_TYPE'] = self.headers.type
+        else:
+            env['CONTENT_TYPE'] = self.headers.typeheader
+        length = self.headers.getheader('content-length')
+        if length:
+            env['CONTENT_LENGTH'] = length
+        for header in [h for h in self.headers.keys()
+                       if h not in ('content-type', 'content-length')]:
+            hkey = 'HTTP_' + header.replace('-', '_').upper()
+            hval = self.headers.getheader(header)
+            hval = hval.replace('\n', '').strip()
+            if hval:
+                env[hkey] = hval
+        env['SERVER_PROTOCOL'] = self.request_version
+        env['wsgi.version'] = (1, 0)
+        env['wsgi.url_scheme'] = self.url_scheme
+        env['wsgi.input'] = self.rfile
+        env['wsgi.errors'] = _error_logger(self)
+        env['wsgi.multithread'] = isinstance(self.server,
+                                             SocketServer.ThreadingMixIn)
+        env['wsgi.multiprocess'] = isinstance(self.server,
+                                              SocketServer.ForkingMixIn)
+        env['wsgi.run_once'] = 0
+
+        self.close_connection = True
+        self.saved_status = None
+        self.saved_headers = []
+        self.sent_headers = False
+        self.length = None
+        for chunk in self.server.application(env, self._start_response):
+            self._write(chunk)
+
+    def send_headers(self):
+        if not self.saved_status:
+            raise AssertionError("Sending headers before "
+                                 "start_response() called")
+        saved_status = self.saved_status.split(None, 1)
+        saved_status[0] = int(saved_status[0])
+        self.send_response(*saved_status)
+        should_close = True
+        for h in self.saved_headers:
+            self.send_header(*h)
+            if h[0].lower() == 'content-length':
+                should_close = False
+                self.length = int(h[1])
+        # The value of the Connection header is a list of case-insensitive
+        # tokens separated by commas and optional whitespace.
+        if 'close' in [token.strip().lower() for token in
+                       self.headers.get('connection', '').split(',')]:
+            should_close = True
+        if should_close:
+            self.send_header('Connection', 'close')
+        self.close_connection = should_close
+        self.end_headers()
+        self.sent_headers = True
+
+    def _start_response(self, http_status, headers, exc_info=None):
+        code, msg = http_status.split(None, 1)
+        code = int(code)
+        self.saved_status = http_status
+        bad_headers = ('connection', 'transfer-encoding')
+        self.saved_headers = [h for h in headers
+                              if h[0].lower() not in bad_headers]
+        return self._write
+
+    def _write(self, data):
+        if not self.saved_status:
+            raise AssertionError("data written before start_response() called")
+        elif not self.sent_headers:
+            self.send_headers()
+        if self.length is not None:
+            if len(data) > self.length:
+                raise AssertionError("Content-length header sent, but more "
+                                     "bytes than specified are being written.")
+            self.length = self.length - len(data)
+        self.wfile.write(data)
+        self.wfile.flush()
+
+class _shgwebhandler(_hgwebhandler):
+
+    url_scheme = 'https'
+
+    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
+
+    def openlog(opt, default):
+        if opt and opt != '-':
+            return open(opt, 'a')
+        return default
+
+    if repo is None:
+        myui = ui
+    else:
+        myui = repo.ui
+    address = myui.config("web", "address", "")
+    port = int(myui.config("web", "port", 8000))
+    prefix = myui.config("web", "prefix", "")
+    if prefix:
+        prefix = "/" + prefix.strip("/")
+    use_ipv6 = myui.configbool("web", "ipv6")
+    webdir_conf = myui.config("web", "webdir_conf")
+    ssl_cert = myui.config("web", "certificate")
+    accesslog = openlog(myui.config("web", "accesslog", "-"), sys.stdout)
+    errorlog = openlog(myui.config("web", "errorlog", "-"), sys.stderr)
+
+    if use_threads:
+        try:
+            from threading import activeCount
+        except ImportError:
+            use_threads = False
+
+    if use_threads:
+        _mixin = SocketServer.ThreadingMixIn
+    else:
+        if hasattr(os, "fork"):
+            _mixin = SocketServer.ForkingMixIn
+        else:
+            class _mixin:
+                pass
+
+    class MercurialHTTPServer(object, _mixin, BaseHTTPServer.HTTPServer):
+
+        # SO_REUSEADDR has broken semantics on windows
+        if os.name == 'nt':
+            allow_reuse_address = 0
+
+        def __init__(self, *args, **kargs):
+            BaseHTTPServer.HTTPServer.__init__(self, *args, **kargs)
+            self.accesslog = accesslog
+            self.errorlog = errorlog
+            self.daemon_threads = True
+            def make_handler():
+                if webdir_conf:
+                    hgwebobj = hgwebdir(webdir_conf, ui)
+                elif repo is not None:
+                    hgwebobj = hgweb(hg.repository(repo.ui, repo.root))
+                else:
+                    raise error.RepoError(_("There is no Mercurial repository"
+                                            " here (.hg not found)"))
+                return hgwebobj
+            self.application = make_handler()
+
+            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()
+
+            self.addr, self.port = self.socket.getsockname()[0:2]
+            self.prefix = prefix
+            self.fqaddr = socket.getfqdn(address)
+
+    class IPv6HTTPServer(MercurialHTTPServer):
+        address_family = getattr(socket, 'AF_INET6', None)
+
+        def __init__(self, *args, **kwargs):
+            if self.address_family is None:
+                raise error.RepoError(_('IPv6 is not available on this system'))
+            super(IPv6HTTPServer, self).__init__(*args, **kwargs)
+
+    if ssl_cert:
+        handler = _shgwebhandler
+    else:
+        handler = _hgwebhandler
+
+    # ugly hack due to python issue5853 (for threaded use)
+    import mimetypes; mimetypes.init()
+
+    try:
+        if use_ipv6:
+            return IPv6HTTPServer((address, port), handler)
+        else:
+            return MercurialHTTPServer((address, port), handler)
+    except socket.error, inst:
+        raise util.Abort(_("cannot start server at '%s:%d': %s")
+                         % (address, port, inst.args[1]))