view upmana/mercurial/hgweb/server.py @ 229:1645a78a33a4 alpha

Traipse Alpha 'OpenRPG' {100612-02} Traipse is a distribution of OpenRPG that is designed to be easy to setup and go. Traipse also makes it easy for developers to work on code without fear of sacrifice. 'Ornery-Orc' continues the trend of 'Grumpy' and adds fixes to the code. 'Ornery-Orc's main goal is to offer more advanced features and enhance the productivity of the user. Update Summary (Preparing to close updates) New Features: New to Map, can re-order Grid, Miniatures, and Whiteboard layer draw order Fixes: Fix to InterParse that was causing an Infernal Loop with Namespace Internal Fix to XML data, removed old Minidom and switched to Element Tree Fix to Server that was causing eternal attempt to find a Server ID, in Register Rooms thread Fix to metaservers.xml file not being created
author sirebral
date Sat, 12 Jun 2010 04:46:16 -0500
parents 36919b8a3ef9
children
line wrap: on
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# 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 upmana.mercurial import hg, util, error
from hgweb_mod import hgweb
from hgwebdir_mod import hgwebdir
from upmana.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(object, 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]))