Mercurial > hg
view mercurial/hgweb/server.py @ 5331:8ee5b8129e7b
hgweb: don't raise an exception when displying empty repos
The nullid node claims it's in the default branch, but the branch dict
is empty. This fixes the main symptom from issue696, but we may want
to set branchtags()['default'] = nullid somewhere for empty repos.
author | Alexis S. L. Carvalho <alexis@cecm.usp.br> |
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date | Mon, 24 Sep 2007 19:00:11 -0300 |
parents | 86cd6fd61042 |
children | ff461baa9c4e |
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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, incorporated herein by reference. import os, sys, errno, urllib, BaseHTTPServer, socket, SocketServer, traceback from mercurial import ui, hg, util, templater from hgweb_mod import hgweb from hgwebdir_mod import hgwebdir from request import wsgiapplication from mercurial.i18n import gettext as _ 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): def __init__(self, *args, **kargs): self.protocol_version = 'HTTP/1.1' BaseHTTPServer.BaseHTTPRequestHandler.__init__(self, *args, **kargs) def log_error(self, format, *args): errorlog = self.server.errorlog errorlog.write("%s - - [%s] %s\n" % (self.client_address[0], self.log_date_time_string(), format % args)) def log_message(self, format, *args): accesslog = self.server.accesslog accesslog.write("%s - - [%s] %s\n" % (self.client_address[0], self.log_date_time_string(), format % args)) def do_POST(self): try: try: self.do_hgweb() except socket.error, inst: if inst[0] != errno.EPIPE: raise except StandardError, inst: 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_info, 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['PATH_INFO'] = path_info 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'] = 'http' 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 req = self.server.reqmaker(env, self._start_response) for data in req: if data: self._write(data) 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() def create_server(ui, repo): use_threads = True def openlog(opt, default): if opt and opt != '-': return open(opt, 'w') return default if repo is None: myui = ui else: myui = repo.ui address = myui.config("web", "address", "") port = int(myui.config("web", "port", 8000)) use_ipv6 = myui.configbool("web", "ipv6") webdir_conf = myui.config("web", "webdir_conf") 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 hg.RepoError(_("There is no Mercurial repository here" " (.hg not found)")) return hgwebobj self.reqmaker = wsgiapplication(make_handler) addr = address if addr in ('', '::'): addr = socket.gethostname() self.addr, self.port = addr, port class IPv6HTTPServer(MercurialHTTPServer): address_family = getattr(socket, 'AF_INET6', None) def __init__(self, *args, **kwargs): if self.address_family is None: raise hg.RepoError(_('IPv6 not available on this system')) super(IPv6HTTPServer, self).__init__(*args, **kwargs) try: if use_ipv6: return IPv6HTTPServer((address, port), _hgwebhandler) else: return MercurialHTTPServer((address, port), _hgwebhandler) except socket.error, inst: raise util.Abort(_('cannot start server: %s') % inst.args[1])