server: skip logging of ECONNRESET

I believe this was exposed by 5492dc20, because the sending of the 500
would have already failed and prevented this logging. On Python 3,
this will be a ConnectionResetError, which is a subtype of OSError,
which is why we check for both OSError and socket.error.

Bonus: this fixes a race in test-hgweb.t where sometimes the
ECONNRESET wouldn't happen, because now we just don't log those
errors.

Differential Revision: https://phab.mercurial-scm.org/D5764

mercurial/hgweb/server.py

@@ -1,383 +1,385
 # hgweb/server.py - The standalone hg web server.
 #
 # Copyright 21 May 2005 - (c) 2005 Jake Edge <[e-mail]>
 # Copyright 2005-2007 Matt Mackall <[e-mail]>
 #
 # This software may be used and distributed according to the terms of the
 # GNU General Public License version 2 or any later version.
 
 from __future__ import absolute_import
 
 import errno
 import os
 import socket
 import sys
 import traceback
 import wsgiref.validate
 
 from ..i18n import _
 
 from .. import (
     encoding,
     error,
     pycompat,
     util,
 )
 
 httpservermod = util.httpserver
 socketserver = util.socketserver
 urlerr = util.urlerr
 urlreq = util.urlreq
 
 from . import (
     common,
 )
 
 def _splitURI(uri):
     """Return path and query that has been split from uri
 
     Just like CGI environment, the path is unquoted, the query is
     not.
     """
     if r'?' in uri:
         path, query = uri.split(r'?', 1)
     else:
         path, query = uri, r''
     return urlreq.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(r"HG error:  %s", encoding.strfromlocal(msg))
 
 class _httprequesthandler(httpservermod.basehttprequesthandler):
 
     url_scheme = 'http'
 
     @staticmethod
     def preparehttpserver(httpserver, ui):
         """Prepare .socket of new HTTPServer instance"""
 
     def __init__(self, *args, **kargs):
         self.protocol_version = r'HTTP/1.1'
         httpservermod.basehttprequesthandler.__init__(self, *args, **kargs)
 
     def _log_any(self, fp, format, *args):
         fp.write(pycompat.sysbytes(
             r"%s - - [%s] %s" % (self.client_address[0],
                                  self.log_date_time_string(),
                                  format % args)) + '\n')
         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 log_request(self, code=r'-', size=r'-'):
         xheaders = []
         if util.safehasattr(self, 'headers'):
             xheaders = [h for h in self.headers.items()
                         if h[0].startswith(r'x-')]
         self.log_message(r'"%s" %s %s%s',
                          self.requestline, str(code), str(size),
                          r''.join([r' %s:%s' % h for h in sorted(xheaders)]))
 
     def do_write(self):
         try:
             self.do_hgweb()
         except socket.error as inst:
             if inst.errno != errno.EPIPE:
                 raise
 
     def do_POST(self):
         try:
             self.do_write()
-        except Exception:
+        except Exception as e:
             # I/O below could raise another exception. So log the original
             # exception first to ensure it is recorded.
-            tb = r"".join(traceback.format_exception(*sys.exc_info()))
-            # We need a native-string newline to poke in the log
-            # message, because we won't get a newline when using an
-            # r-string. This is the easy way out.
-            newline = chr(10)
-            self.log_error(r"Exception happened during processing "
-                           r"request '%s':%s%s", self.path, newline, tb)
+            if not (isinstance(e, (OSError, socket.error))
+                    and e.errno == errno.ECONNRESET):
+                tb = r"".join(traceback.format_exception(*sys.exc_info()))
+                # We need a native-string newline to poke in the log
+                # message, because we won't get a newline when using an
+                # r-string. This is the easy way out.
+                newline = chr(10)
+                self.log_error(r"Exception happened during processing "
+                               r"request '%s':%s%s", self.path, newline, tb)
 
             self._start_response(r"500 Internal Server Error", [])
             self._write(b"Internal Server Error")
             self._done()
 
     def do_PUT(self):
         self.do_POST()
 
     def do_GET(self):
         self.do_POST()
 
     def do_hgweb(self):
         self.sent_headers = False
         path, query = _splitURI(self.path)
 
         # Ensure the slicing of path below is valid
         if (path != self.server.prefix
             and not path.startswith(self.server.prefix + b'/')):
             self._start_response(pycompat.strurl(common.statusmessage(404)),
                                  [])
             if self.command == 'POST':
                 # Paranoia: tell the client we're going to close the
                 # socket so they don't try and reuse a socket that
                 # might have a POST body waiting to confuse us. We do
                 # this by directly munging self.saved_headers because
                 # self._start_response ignores Connection headers.
                 self.saved_headers = [(r'Connection', r'Close')]
             self._write(b"Not Found")
             self._done()
             return
 
         env = {}
         env[r'GATEWAY_INTERFACE'] = r'CGI/1.1'
         env[r'REQUEST_METHOD'] = self.command
         env[r'SERVER_NAME'] = self.server.server_name
         env[r'SERVER_PORT'] = str(self.server.server_port)
         env[r'REQUEST_URI'] = self.path
         env[r'SCRIPT_NAME'] = pycompat.sysstr(self.server.prefix)
         env[r'PATH_INFO'] = pycompat.sysstr(path[len(self.server.prefix):])
         env[r'REMOTE_HOST'] = self.client_address[0]
         env[r'REMOTE_ADDR'] = self.client_address[0]
         env[r'QUERY_STRING'] = query or r''
 
         if pycompat.ispy3:
             if self.headers.get_content_type() is None:
                 env[r'CONTENT_TYPE'] = self.headers.get_default_type()
             else:
                 env[r'CONTENT_TYPE'] = self.headers.get_content_type()
             length = self.headers.get(r'content-length')
         else:
             if self.headers.typeheader is None:
                 env[r'CONTENT_TYPE'] = self.headers.type
             else:
                 env[r'CONTENT_TYPE'] = self.headers.typeheader
             length = self.headers.getheader(r'content-length')
         if length:
             env[r'CONTENT_LENGTH'] = length
         for header in [h for h in self.headers.keys()
                       if h.lower() not in (r'content-type', r'content-length')]:
             hkey = r'HTTP_' + header.replace(r'-', r'_').upper()
             hval = self.headers.get(header)
             hval = hval.replace(r'\n', r'').strip()
             if hval:
                 env[hkey] = hval
         env[r'SERVER_PROTOCOL'] = self.request_version
         env[r'wsgi.version'] = (1, 0)
         env[r'wsgi.url_scheme'] = pycompat.sysstr(self.url_scheme)
         if env.get(r'HTTP_EXPECT', '').lower() == '100-continue':
             self.rfile = common.continuereader(self.rfile, self.wfile.write)
 
         env[r'wsgi.input'] = self.rfile
         env[r'wsgi.errors'] = _error_logger(self)
         env[r'wsgi.multithread'] = isinstance(self.server,
                                              socketserver.ThreadingMixIn)
         if util.safehasattr(socketserver, 'ForkingMixIn'):
             env[r'wsgi.multiprocess'] = isinstance(self.server,
                                                    socketserver.ForkingMixIn)
         else:
             env[r'wsgi.multiprocess'] = False
 
         env[r'wsgi.run_once'] = 0
 
         wsgiref.validate.check_environ(env)
 
         self.saved_status = None
         self.saved_headers = []
         self.length = None
         self._chunked = None
         for chunk in self.server.application(env, self._start_response):
             self._write(chunk)
         if not self.sent_headers:
             self.send_headers()
         self._done()
 
     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)
         self.length = None
         self._chunked = False
         for h in self.saved_headers:
             self.send_header(*h)
             if h[0].lower() == r'content-length':
                 self.length = int(h[1])
         if (self.length is None and
             saved_status[0] != common.HTTP_NOT_MODIFIED):
             self._chunked = (not self.close_connection and
                              self.request_version == r'HTTP/1.1')
             if self._chunked:
                 self.send_header(r'Transfer-Encoding', r'chunked')
             else:
                 self.send_header(r'Connection', r'close')
         self.end_headers()
         self.sent_headers = True
 
     def _start_response(self, http_status, headers, exc_info=None):
         assert isinstance(http_status, str)
         code, msg = http_status.split(None, 1)
         code = int(code)
         self.saved_status = http_status
         bad_headers = (r'connection', r'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)
         elif self._chunked and data:
             data = '%x\r\n%s\r\n' % (len(data), data)
         self.wfile.write(data)
         self.wfile.flush()
 
     def _done(self):
         if self._chunked:
             self.wfile.write('0\r\n\r\n')
             self.wfile.flush()
 
     def version_string(self):
         if self.server.serverheader:
             return encoding.strfromlocal(self.server.serverheader)
         return httpservermod.basehttprequesthandler.version_string(self)
 
 class _httprequesthandlerssl(_httprequesthandler):
     """HTTPS handler based on Python's ssl module"""
 
     url_scheme = 'https'
 
     @staticmethod
     def preparehttpserver(httpserver, ui):
         try:
             from .. import sslutil
             sslutil.modernssl
         except ImportError:
             raise error.Abort(_("SSL support is unavailable"))
 
         certfile = ui.config('web', 'certificate')
 
         # These config options are currently only meant for testing. Use
         # at your own risk.
         cafile = ui.config('devel', 'servercafile')
         reqcert = ui.configbool('devel', 'serverrequirecert')
 
         httpserver.socket = sslutil.wrapserversocket(httpserver.socket,
                                                      ui,
                                                      certfile=certfile,
                                                      cafile=cafile,
                                                      requireclientcert=reqcert)
 
     def setup(self):
         self.connection = self.request
         self.rfile = self.request.makefile(r"rb", self.rbufsize)
         self.wfile = self.request.makefile(r"wb", self.wbufsize)
 
 try:
     import threading
     threading.activeCount() # silence pyflakes and bypass demandimport
     _mixin = socketserver.ThreadingMixIn
 except ImportError:
     if util.safehasattr(os, "fork"):
         _mixin = socketserver.ForkingMixIn
     else:
         class _mixin(object):
             pass
 
 def openlog(opt, default):
     if opt and opt != '-':
         return open(opt, 'ab')
     return default
 
 class MercurialHTTPServer(_mixin, httpservermod.httpserver, object):
 
     # SO_REUSEADDR has broken semantics on windows
     if pycompat.iswindows:
         allow_reuse_address = 0
 
     def __init__(self, ui, app, addr, handler, **kwargs):
         httpservermod.httpserver.__init__(self, addr, handler, **kwargs)
         self.daemon_threads = True
         self.application = app
 
         handler.preparehttpserver(self, ui)
 
         prefix = ui.config('web', 'prefix')
         if prefix:
             prefix = '/' + prefix.strip('/')
         self.prefix = prefix
 
         alog = openlog(ui.config('web', 'accesslog'), ui.fout)
         elog = openlog(ui.config('web', 'errorlog'), ui.ferr)
         self.accesslog = alog
         self.errorlog = elog
 
         self.addr, self.port = self.socket.getsockname()[0:2]
         self.fqaddr = socket.getfqdn(addr[0])
 
         self.serverheader = ui.config('web', 'server-header')
 
 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)
 
 def create_server(ui, app):
 
     if ui.config('web', 'certificate'):
         handler = _httprequesthandlerssl
     else:
         handler = _httprequesthandler
 
     if ui.configbool('web', 'ipv6'):
         cls = IPv6HTTPServer
     else:
         cls = MercurialHTTPServer
 
     # ugly hack due to python issue5853 (for threaded use)
     try:
         import mimetypes
         mimetypes.init()
     except UnicodeDecodeError:
         # Python 2.x's mimetypes module attempts to decode strings
         # from Windows' ANSI APIs as ascii (fail), then re-encode them
         # as ascii (clown fail), because the default Python Unicode
         # codec is hardcoded as ascii.
 
         sys.argv # unwrap demand-loader so that reload() works
         reload(sys) # resurrect sys.setdefaultencoding()
         oldenc = sys.getdefaultencoding()
         sys.setdefaultencoding("latin1") # or any full 8-bit encoding
         mimetypes.init()
         sys.setdefaultencoding(oldenc)
 
     address = ui.config('web', 'address')
     port = util.getport(ui.config('web', 'port'))
     try:
         return cls(ui, app, (address, port), handler)
     except socket.error as inst:
         raise error.Abort(_("cannot start server at '%s:%d': %s")
                           % (address, port, encoding.strtolocal(inst.args[1])))

tests/test-hgweb.t

@@ -1,979 +1,967
 #require serve
 
 Some tests for hgweb. Tests static files, plain files and different 404's.
 
   $ hg init test
   $ cd test
   $ mkdir da
   $ echo foo > da/foo
   $ echo foo > foo
   $ hg ci -Ambase
   adding da/foo
   adding foo
   $ hg bookmark -r0 '@'
   $ hg bookmark -r0 'a b c'
   $ hg bookmark -r0 'd/e/f'
   $ hg serve -n test -p $HGPORT -d --pid-file=hg.pid -A access.log -E errors.log
   $ cat hg.pid >> $DAEMON_PIDS
 
 manifest
 
   $ (get-with-headers.py localhost:$HGPORT 'file/tip/?style=raw')
   200 Script output follows
   
   
   drwxr-xr-x da
   -rw-r--r-- 4 foo
   
   
   $ (get-with-headers.py localhost:$HGPORT 'file/tip/da?style=raw')
   200 Script output follows
   
   
   -rw-r--r-- 4 foo
   
   
 
 plain file
 
   $ get-with-headers.py localhost:$HGPORT 'file/tip/foo?style=raw'
   200 Script output follows
   
   foo
 
 should give a 404 - static file that does not exist
 
   $ get-with-headers.py localhost:$HGPORT 'static/bogus'
   404 Not Found
   
   <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
   <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en-US">
   <head>
   <link rel="icon" href="/static/hgicon.png" type="image/png" />
   <meta name="robots" content="index, nofollow" />
   <link rel="stylesheet" href="/static/style-paper.css" type="text/css" />
   <script type="text/javascript" src="/static/mercurial.js"></script>
   
   <title>test: error</title>
   </head>
   <body>
   
   <div class="container">
   <div class="menu">
   <div class="logo">
   <a href="https://mercurial-scm.org/">
   <img src="/static/hglogo.png" width=75 height=90 border=0 alt="mercurial" /></a>
   </div>
   <ul>
   <li><a href="/shortlog">log</a></li>
   <li><a href="/graph">graph</a></li>
   <li><a href="/tags">tags</a></li>
   <li><a href="/bookmarks">bookmarks</a></li>
   <li><a href="/branches">branches</a></li>
   </ul>
   <ul>
   <li><a href="/help">help</a></li>
   </ul>
   </div>
   
   <div class="main">
   
   <h2 class="breadcrumb"><a href="/">Mercurial</a> </h2>
   <h3>error</h3>
   
   
   <form class="search" action="/log">
   
   <p><input name="rev" id="search1" type="text" size="30" value="" /></p>
   <div id="hint">Find changesets by keywords (author, files, the commit message), revision
   number or hash, or <a href="/help/revsets">revset expression</a>.</div>
   </form>
   
   <div class="description">
   <p>
   An error occurred while processing your request:
   </p>
   <p>
   Not Found
   </p>
   </div>
   </div>
   </div>
   
   
   
   </body>
   </html>
   
   [1]
 
 should give a 404 - bad revision
 
   $ get-with-headers.py localhost:$HGPORT 'file/spam/foo?style=raw'
   404 Not Found
   
   
   error: revision not found: spam
   [1]
 
 should give a 400 - bad command
 
   $ get-with-headers.py localhost:$HGPORT 'file/tip/foo?cmd=spam&style=raw'
   400* (glob)
   
   
   error: no such method: spam
   [1]
 
   $ get-with-headers.py --headeronly localhost:$HGPORT '?cmd=spam'
   400 no such method: spam
   [1]
 
 should give a 400 - bad command as a part of url path (issue4071)
 
   $ get-with-headers.py --headeronly localhost:$HGPORT 'spam'
   400 no such method: spam
   [1]
 
   $ get-with-headers.py --headeronly localhost:$HGPORT 'raw-spam'
   400 no such method: spam
   [1]
 
   $ get-with-headers.py --headeronly localhost:$HGPORT 'spam/tip/foo'
   400 no such method: spam
   [1]
 
 should give a 404 - file does not exist
 
   $ get-with-headers.py localhost:$HGPORT 'file/tip/bork?style=raw'
   404 Not Found
   
   
   error: bork@2ef0ac749a14: not found in manifest
   [1]
   $ get-with-headers.py localhost:$HGPORT 'file/tip/bork'
   404 Not Found
   
   <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
   <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en-US">
   <head>
   <link rel="icon" href="/static/hgicon.png" type="image/png" />
   <meta name="robots" content="index, nofollow" />
   <link rel="stylesheet" href="/static/style-paper.css" type="text/css" />
   <script type="text/javascript" src="/static/mercurial.js"></script>
   
   <title>test: error</title>
   </head>
   <body>
   
   <div class="container">
   <div class="menu">
   <div class="logo">
   <a href="https://mercurial-scm.org/">
   <img src="/static/hglogo.png" width=75 height=90 border=0 alt="mercurial" /></a>
   </div>
   <ul>
   <li><a href="/shortlog">log</a></li>
   <li><a href="/graph">graph</a></li>
   <li><a href="/tags">tags</a></li>
   <li><a href="/bookmarks">bookmarks</a></li>
   <li><a href="/branches">branches</a></li>
   </ul>
   <ul>
   <li><a href="/help">help</a></li>
   </ul>
   </div>
   
   <div class="main">
   
   <h2 class="breadcrumb"><a href="/">Mercurial</a> </h2>
   <h3>error</h3>
   
   
   <form class="search" action="/log">
   
   <p><input name="rev" id="search1" type="text" size="30" value="" /></p>
   <div id="hint">Find changesets by keywords (author, files, the commit message), revision
   number or hash, or <a href="/help/revsets">revset expression</a>.</div>
   </form>
   
   <div class="description">
   <p>
   An error occurred while processing your request:
   </p>
   <p>
   bork@2ef0ac749a14: not found in manifest
   </p>
   </div>
   </div>
   </div>
   
   
   
   </body>
   </html>
   
   [1]
   $ get-with-headers.py localhost:$HGPORT 'diff/tip/bork?style=raw'
   404 Not Found
   
   
   error: bork@2ef0ac749a14: not found in manifest
   [1]
 
 try bad style
 
   $ (get-with-headers.py localhost:$HGPORT 'file/tip/?style=foobar')
   200 Script output follows
   
   <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
   <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en-US">
   <head>
   <link rel="icon" href="/static/hgicon.png" type="image/png" />
   <meta name="robots" content="index, nofollow" />
   <link rel="stylesheet" href="/static/style-paper.css" type="text/css" />
   <script type="text/javascript" src="/static/mercurial.js"></script>
   
   <title>test: 2ef0ac749a14 /</title>
   </head>
   <body>
   
   <div class="container">
   <div class="menu">
   <div class="logo">
   <a href="https://mercurial-scm.org/">
   <img src="/static/hglogo.png" alt="mercurial" /></a>
   </div>
   <ul>
   <li><a href="/shortlog/tip">log</a></li>
   <li><a href="/graph/tip">graph</a></li>
   <li><a href="/tags">tags</a></li>
   <li><a href="/bookmarks">bookmarks</a></li>
   <li><a href="/branches">branches</a></li>
   </ul>
   <ul>
   <li><a href="/rev/tip">changeset</a></li>
   <li class="active">browse</li>
   </ul>
   <ul>
   
   </ul>
   <ul>
    <li><a href="/help">help</a></li>
   </ul>
   </div>
   
   <div class="main">
   <h2 class="breadcrumb"><a href="/">Mercurial</a> </h2>
   <h3>
    directory / @ 0:<a href="/rev/2ef0ac749a14">2ef0ac749a14</a>
    <span class="phase">draft</span> <span class="branchhead">default</span> <span class="tag">tip</span> <span class="tag">@</span> <span class="tag">a b c</span> <span class="tag">d/e/f</span> 
   </h3>
   
   
   <form class="search" action="/log">
   
   <p><input name="rev" id="search1" type="text" size="30" value="" /></p>
   <div id="hint">Find changesets by keywords (author, files, the commit message), revision
   number or hash, or <a href="/help/revsets">revset expression</a>.</div>
   </form>
   
   <table class="bigtable">
   <thead>
   <tr>
     <th class="name">name</th>
     <th class="size">size</th>
     <th class="permissions">permissions</th>
   </tr>
   </thead>
   <tbody class="stripes2">
   
   
   <tr class="fileline">
   <td class="name">
   <a href="/file/tip/da">
   <img src="/static/coal-folder.png" alt="dir."/> da/
   </a>
   <a href="/file/tip/da/">
   
   </a>
   </td>
   <td class="size"></td>
   <td class="permissions">drwxr-xr-x</td>
   </tr>
   
   <tr class="fileline">
   <td class="filename">
   <a href="/file/tip/foo">
   <img src="/static/coal-file.png" alt="file"/> foo
   </a>
   </td>
   <td class="size">4</td>
   <td class="permissions">-rw-r--r--</td>
   </tr>
   </tbody>
   </table>
   </div>
   </div>
   
   
   </body>
   </html>
   
 
 stop and restart
 
   $ killdaemons.py
   $ hg serve -p $HGPORT -d --pid-file=hg.pid -A access.log
   $ cat hg.pid >> $DAEMON_PIDS
 
 Test the access/error files are opened in append mode
 
   $ "$PYTHON" -c "from __future__ import print_function; print(len(open('access.log', 'rb').readlines()), 'log lines written')"
   14 log lines written
 
 static file
 
   $ get-with-headers.py --twice localhost:$HGPORT 'static/style-gitweb.css' - date etag server
   200 Script output follows
   content-length: 9074
   content-type: text/css
   
   body { font-family: sans-serif; font-size: 12px; border:solid #d9d8d1; border-width:1px; margin:10px; background: white; color: black; }
   a { color:#0000cc; }
   a:hover, a:visited, a:active { color:#880000; }
   div.page_header { height:25px; padding:8px; font-size:18px; font-weight:bold; background-color:#d9d8d1; }
   div.page_header a:visited { color:#0000cc; }
   div.page_header a:hover { color:#880000; }
   div.page_nav {
       padding:8px;
       display: flex;
       justify-content: space-between;
       align-items: center;
   }
   div.page_nav a:visited { color:#0000cc; }
   div.extra_nav {
       padding: 8px;
   }
   div.extra_nav a:visited {
       color: #0000cc;
   }
   div.page_path { padding:8px; border:solid #d9d8d1; border-width:0px 0px 1px}
   div.page_footer { padding:4px 8px; background-color: #d9d8d1; }
   div.page_footer_text { float:left; color:#555555; font-style:italic; }
   div.page_body { padding:8px; }
   div.title, a.title {
   	display:block; padding:6px 8px;
   	font-weight:bold; background-color:#edece6; text-decoration:none; color:#000000;
   }
   a.title:hover { background-color: #d9d8d1; }
   div.title_text { padding:6px 0px; border: solid #d9d8d1; border-width:0px 0px 1px; }
   div.log_body { padding:8px 8px 8px 150px; }
   .age { white-space:nowrap; }
   a.title span.age { position:relative; float:left; width:142px; font-style:italic; }
   div.log_link {
   	padding:0px 8px;
   	font-size:10px; font-family:sans-serif; font-style:normal;
   	position:relative; float:left; width:136px;
   }
   div.list_head { padding:6px 8px 4px; border:solid #d9d8d1; border-width:1px 0px 0px; font-style:italic; }
   a.list { text-decoration:none; color:#000000; }
   a.list:hover { text-decoration:underline; color:#880000; }
   table { padding:8px 4px; }
   th { padding:2px 5px; font-size:12px; text-align:left; }
   .parity0 { background-color:#ffffff; }
   tr.dark, .parity1, pre.sourcelines.stripes > :nth-child(4n+4) { background-color:#f6f6f0; }
   tr.light:hover, .parity0:hover, tr.dark:hover, .parity1:hover,
   pre.sourcelines.stripes > :nth-child(4n+2):hover,
   pre.sourcelines.stripes > :nth-child(4n+4):hover,
   pre.sourcelines.stripes > :nth-child(4n+1):hover + :nth-child(4n+2),
   pre.sourcelines.stripes > :nth-child(4n+3):hover + :nth-child(4n+4) { background-color:#edece6; }
   td { padding:2px 5px; font-size:12px; vertical-align:top; }
   td.closed { background-color: #99f; }
   td.link { padding:2px 5px; font-family:sans-serif; font-size:10px; }
   td.indexlinks { white-space: nowrap; }
   td.indexlinks a {
     padding: 2px 5px; line-height: 10px;
     border: 1px solid;
     color: #ffffff; background-color: #7777bb;
     border-color: #aaaadd #333366 #333366 #aaaadd;
     font-weight: bold;  text-align: center; text-decoration: none;
     font-size: 10px;
   }
   td.indexlinks a:hover { background-color: #6666aa; }
   div.pre { font-family:monospace; font-size:12px; white-space:pre; }
   
   .search {
       margin-right: 8px;
   }
   
   div#hint {
     position: absolute;
     display: none;
     width: 250px;
     padding: 5px;
     background: #ffc;
     border: 1px solid yellow;
     border-radius: 5px;
     z-index: 15;
   }
   
   #searchform:hover div#hint { display: block; }
   
   tr.thisrev a { color:#999999; text-decoration: none; }
   tr.thisrev pre { color:#009900; }
   td.annotate {
     white-space: nowrap;
   }
   div.annotate-info {
     z-index: 5;
     display: none;
     position: absolute;
     background-color: #FFFFFF;
     border: 1px solid #d9d8d1;
     text-align: left;
     color: #000000;
     padding: 5px;
   }
   div.annotate-info a { color: #0000FF; text-decoration: underline; }
   td.annotate:hover div.annotate-info { display: inline; }
   
   #diffopts-form {
     padding-left: 8px;
     display: none;
   }
   
   .linenr { color:#999999; text-decoration:none }
   div.rss_logo { float: right; white-space: nowrap; }
   div.rss_logo a {
   	padding:3px 6px; line-height:10px;
   	border:1px solid; border-color:#fcc7a5 #7d3302 #3e1a01 #ff954e;
   	color:#ffffff; background-color:#ff6600;
   	font-weight:bold; font-family:sans-serif; font-size:10px;
   	text-align:center; text-decoration:none;
   }
   div.rss_logo a:hover { background-color:#ee5500; }
   pre { margin: 0; }
   span.logtags span {
   	padding: 0px 4px;
   	font-size: 10px;
   	font-weight: normal;
   	border: 1px solid;
   	background-color: #ffaaff;
   	border-color: #ffccff #ff00ee #ff00ee #ffccff;
   }
   span.logtags span.phasetag {
   	background-color: #dfafff;
   	border-color: #e2b8ff #ce48ff #ce48ff #e2b8ff;
   }
   span.logtags span.obsoletetag {
   	background-color: #dddddd;
   	border-color: #e4e4e4 #a3a3a3 #a3a3a3 #e4e4e4;
   }
   span.logtags span.instabilitytag {
   	background-color: #ffb1c0;
   	border-color: #ffbbc8 #ff4476 #ff4476 #ffbbc8;
   }
   span.logtags span.tagtag {
   	background-color: #ffffaa;
   	border-color: #ffffcc #ffee00 #ffee00 #ffffcc;
   }
   span.logtags span.branchtag {
   	background-color: #aaffaa;
   	border-color: #ccffcc #00cc33 #00cc33 #ccffcc;
   }
   span.logtags span.inbranchtag {
   	background-color: #d5dde6;
   	border-color: #e3ecf4 #9398f4 #9398f4 #e3ecf4;
   }
   span.logtags span.bookmarktag {
   	background-color: #afdffa;
   	border-color: #ccecff #46ace6 #46ace6 #ccecff;
   }
   span.difflineplus { color:#008800; }
   span.difflineminus { color:#cc0000; }
   span.difflineat { color:#990099; }
   div.diffblocks { counter-reset: lineno; }
   div.diffblock { counter-increment: lineno; }
   pre.sourcelines { position: relative; counter-reset: lineno; }
   pre.sourcelines > span {
   	display: inline-block;
   	box-sizing: border-box;
   	width: 100%;
   	padding: 0 0 0 5em;
   	counter-increment: lineno;
   	vertical-align: top;
   }
   pre.sourcelines > span:before {
   	-moz-user-select: -moz-none;
   	-khtml-user-select: none;
   	-webkit-user-select: none;
   	-ms-user-select: none;
   	user-select: none;
   	display: inline-block;
   	margin-left: -6em;
   	width: 4em;
   	color: #999;
   	text-align: right;
   	content: counters(lineno,".");
   	float: left;
   }
   pre.sourcelines > a {
   	display: inline-block;
   	position: absolute;
   	left: 0px;
   	width: 4em;
   	height: 1em;
   }
   tr:target td,
   pre.sourcelines > span:target,
   pre.sourcelines.stripes > span:target {
   	background-color: #bfdfff;
   }
   
   .description {
       font-family: monospace;
       white-space: pre;
   }
   
   /* Followlines */
   tbody.sourcelines > tr.followlines-selected,
   pre.sourcelines > span.followlines-selected {
     background-color: #99C7E9 !important;
   }
   
   div#followlines {
     background-color: #FFF;
     border: 1px solid #d9d8d1;
     padding: 5px;
     position: fixed;
   }
   
   div.followlines-cancel {
     text-align: right;
   }
   
   div.followlines-cancel > button {
     line-height: 80%;
     padding: 0;
     border: 0;
     border-radius: 2px;
     background-color: inherit;
     font-weight: bold;
   }
   
   div.followlines-cancel > button:hover {
     color: #FFFFFF;
     background-color: #CF1F1F;
   }
   
   div.followlines-link {
     margin: 2px;
     margin-top: 4px;
     font-family: sans-serif;
   }
   
   .btn-followlines {
     position: absolute;
     display: none;
     cursor: pointer;
     box-sizing: content-box;
     font-size: 11px;
     width: 13px;
     height: 13px;
     border-radius: 3px;
     margin: 0px;
     margin-top: -2px;
     padding: 0px;
     background-color: #E5FDE5;
     border: 1px solid #9BC19B;
     font-family: monospace;
     text-align: center;
     line-height: 5px;
   }
   
   span.followlines-select .btn-followlines {
     margin-left: -1.6em;
   }
   
   .btn-followlines:hover {
     transform: scale(1.1, 1.1);
   }
   
   .btn-followlines .followlines-plus {
     color: green;
   }
   
   .btn-followlines .followlines-minus {
     color: red;
   }
   
   .btn-followlines-end {
     background-color: #ffdcdc;
   }
   
   .sourcelines tr:hover .btn-followlines,
   .sourcelines span.followlines-select:hover > .btn-followlines {
     display: inline;
   }
   
   .btn-followlines-hidden,
   .sourcelines tr:hover .btn-followlines-hidden {
     display: none;
   }
   
   /* Graph */
   div#wrapper {
   	position: relative;
   	margin: 0;
   	padding: 0;
   	margin-top: 3px;
   }
   
   canvas {
   	position: absolute;
   	z-index: 5;
   	top: -0.9em;
   	margin: 0;
   }
   
   ul#graphnodes {
   	list-style: none inside none;
   	padding: 0;
   	margin: 0;
   }
   
   ul#graphnodes li {
   	position: relative;
   	height: 37px;
   	overflow: visible;
   	padding-top: 2px;
   }
   
   ul#graphnodes li .fg {
   	position: absolute;
   	z-index: 10;
   }
   
   ul#graphnodes li .info {
   	font-size: 100%;
   	font-style: italic;
   }
   
   /* Comparison */
   .legend {
       padding: 1.5% 0 1.5% 0;
   }
   
   .legendinfo {
       border: 1px solid #d9d8d1;
       font-size: 80%;
       text-align: center;
       padding: 0.5%;
   }
   
   .equal {
       background-color: #ffffff;
   }
   
   .delete {
       background-color: #faa;
       color: #333;
   }
   
   .insert {
       background-color: #ffa;
   }
   
   .replace {
       background-color: #e8e8e8;
   }
   
   .comparison {
       overflow-x: auto;
   }
   
   .header th {
       text-align: center;
   }
   
   .block {
       border-top: 1px solid #d9d8d1;
   }
   
   .scroll-loading {
     -webkit-animation: change_color 1s linear 0s infinite alternate;
     -moz-animation: change_color 1s linear 0s infinite alternate;
     -o-animation: change_color 1s linear 0s infinite alternate;
     animation: change_color 1s linear 0s infinite alternate;
   }
   
   @-webkit-keyframes change_color {
     from { background-color: #A0CEFF; } to {  }
   }
   @-moz-keyframes change_color {
     from { background-color: #A0CEFF; } to {  }
   }
   @-o-keyframes change_color {
     from { background-color: #A0CEFF; } to {  }
   }
   @keyframes change_color {
     from { background-color: #A0CEFF; } to {  }
   }
   
   .scroll-loading-error {
       background-color: #FFCCCC !important;
   }
   
   #doc {
       margin: 0 8px;
   }
   304 Not Modified
   
 
 phase changes are refreshed (issue4061)
 
   $ echo bar >> foo
   $ hg ci -msecret --secret
   $ get-with-headers.py localhost:$HGPORT 'log?style=raw'
   200 Script output follows
   
   
   # HG changelog
   # Node ID 2ef0ac749a14e4f57a5a822464a0902c6f7f448f
   
   changeset:   2ef0ac749a14e4f57a5a822464a0902c6f7f448f
   revision:    0
   user:        test
   date:        Thu, 01 Jan 1970 00:00:00 +0000
   summary:     base
   branch:      default
   tag:         tip
   bookmark:    @
   bookmark:    a b c
   bookmark:    d/e/f
   
   
   $ hg phase --draft tip
   $ get-with-headers.py localhost:$HGPORT 'log?style=raw'
   200 Script output follows
   
   
   # HG changelog
   # Node ID a084749e708a9c4c0a5b652a2a446322ce290e04
   
   changeset:   a084749e708a9c4c0a5b652a2a446322ce290e04
   revision:    1
   user:        test
   date:        Thu, 01 Jan 1970 00:00:00 +0000
   summary:     secret
   branch:      default
   tag:         tip
   
   changeset:   2ef0ac749a14e4f57a5a822464a0902c6f7f448f
   revision:    0
   user:        test
   date:        Thu, 01 Jan 1970 00:00:00 +0000
   summary:     base
   bookmark:    @
   bookmark:    a b c
   bookmark:    d/e/f
   
   
 
 access bookmarks
 
   $ get-with-headers.py localhost:$HGPORT 'rev/@?style=paper' | egrep '^200|changeset 0:'
   200 Script output follows
    changeset 0:<a href="/rev/2ef0ac749a14?style=paper">2ef0ac749a14</a>
 
   $ get-with-headers.py localhost:$HGPORT 'rev/%40?style=paper' | egrep '^200|changeset 0:'
   200 Script output follows
    changeset 0:<a href="/rev/2ef0ac749a14?style=paper">2ef0ac749a14</a>
 
   $ get-with-headers.py localhost:$HGPORT 'rev/a%20b%20c?style=paper' | egrep '^200|changeset 0:'
   200 Script output follows
    changeset 0:<a href="/rev/2ef0ac749a14?style=paper">2ef0ac749a14</a>
 
   $ get-with-headers.py localhost:$HGPORT 'rev/d%252Fe%252Ff?style=paper' | egrep '^200|changeset 0:'
   200 Script output follows
    changeset 0:<a href="/rev/2ef0ac749a14?style=paper">2ef0ac749a14</a>
 
 no '[up]' entry in file view when in root directory
 
   $ get-with-headers.py localhost:$HGPORT 'file/tip?style=paper' | grep -F '[up]'
   [1]
   $ get-with-headers.py localhost:$HGPORT 'file/tip/da?style=paper' | grep -F '[up]'
   <a href="/file/tip/?style=paper">[up]</a>
   $ get-with-headers.py localhost:$HGPORT 'file/tip?style=coal' | grep -F '[up]'
   [1]
   $ get-with-headers.py localhost:$HGPORT 'file/tip/da?style=coal' | grep -F '[up]'
   <a href="/file/tip/?style=coal">[up]</a>
   $ get-with-headers.py localhost:$HGPORT 'file/tip?style=gitweb' | grep -F '[up]'
   [1]
   $ get-with-headers.py localhost:$HGPORT 'file/tip/da?style=gitweb' | grep -F '[up]'
   <a href="/file/tip/?style=gitweb">[up]</a>
   $ get-with-headers.py localhost:$HGPORT 'file/tip?style=monoblue' | grep -F '[up]'
   [1]
   $ get-with-headers.py localhost:$HGPORT 'file/tip/da?style=monoblue' | grep -F '[up]'
   <a href="/file/tip/?style=monoblue">[up]</a>
   $ get-with-headers.py localhost:$HGPORT 'file/tip?style=spartan' | grep -F '[up]'
   [1]
   $ get-with-headers.py localhost:$HGPORT 'file/tip/da?style=spartan' | grep -F '[up]'
   <a href="/file/tip/?style=spartan">[up]</a>
 
 no style can be loaded from directories other than the specified paths
 
   $ mkdir -p x/templates/fallback
   $ cat <<EOF > x/templates/fallback/map
   > default = 'shortlog'
   > shortlog = 'fall back to default\n'
   > mimetype = 'text/plain'
   > EOF
   $ cat <<EOF > x/map
   > default = 'shortlog'
   > shortlog = 'access to outside of templates directory\n'
   > mimetype = 'text/plain'
   > EOF
 
   $ killdaemons.py
   $ hg serve -p $HGPORT -d --pid-file=hg.pid -A access.log -E errors.log \
   > --config web.style=fallback --config web.templates=x/templates
   $ cat hg.pid >> $DAEMON_PIDS
 
   $ get-with-headers.py localhost:$HGPORT "?style=`pwd`/x"
   200 Script output follows
   
   fall back to default
 
   $ get-with-headers.py localhost:$HGPORT '?style=..'
   200 Script output follows
   
   fall back to default
 
   $ get-with-headers.py localhost:$HGPORT '?style=./..'
   200 Script output follows
   
   fall back to default
 
   $ get-with-headers.py localhost:$HGPORT '?style=.../.../'
   200 Script output follows
   
   fall back to default
 
   $ killdaemons.py
 
 Test signal-safe-lock in web and non-web processes
 
   $ cat <<'EOF' > disablesig.py
   > import signal
   > from mercurial import error, extensions
   > def disabledsig(orig, signalnum, handler):
   >     if signalnum == signal.SIGTERM:
   >         raise error.Abort(b'SIGTERM cannot be replaced')
   >     try:
   >         return orig(signalnum, handler)
   >     except ValueError:
   >         raise error.Abort(b'signal.signal() called in thread?')
   > def uisetup(ui):
   >    extensions.wrapfunction(signal, b'signal', disabledsig)
   > EOF
 
  by default, signal interrupt should be disabled while making a lock file
 
   $ hg debuglock -s --config extensions.disablesig=disablesig.py
   abort: SIGTERM cannot be replaced
   [255]
 
  but in hgweb, it isn't disabled since some WSGI servers complains about
  unsupported signal.signal() calls (see issue5889)
 
   $ hg serve --config extensions.disablesig=disablesig.py \
   > --config web.allow-push='*' --config web.push_ssl=False \
   > -p $HGPORT -d --pid-file=hg.pid -A access.log -E errors.log
   $ cat hg.pid >> $DAEMON_PIDS
 
   $ hg clone -q http://localhost:$HGPORT/ repo
   $ hg bookmark -R repo foo
 
  push would fail if signal.signal() were called
 
   $ hg push -R repo -B foo
   pushing to http://localhost:$HGPORT/
   searching for changes
   no changes found
   exporting bookmark foo
   [1]
 
   $ rm -R repo
   $ killdaemons.py
 
 errors
 
   $ cat errors.log | "$PYTHON" $TESTDIR/filtertraceback.py
-  $LOCALIP - - [$ERRDATE$] Exception happened during processing request '/?cmd=spam': (glob)
-  Traceback (most recent call last):
-  error: [Errno 104] $ECONNRESET$
-  
-  $LOCALIP - - [$ERRDATE$] Exception happened during processing request '/spam': (glob)
-  Traceback (most recent call last):
-  error: [Errno 104] $ECONNRESET$
-  
-  $LOCALIP - - [$ERRDATE$] Exception happened during processing request '/spam/tip/foo': (glob)
-  Traceback (most recent call last):
-  error: [Errno 104] $ECONNRESET$
-  
   $ rm -f errors.log
 
 Uncaught exceptions result in a logged error and canned HTTP response
 
   $ hg serve --config extensions.hgweberror=$TESTDIR/hgweberror.py -p $HGPORT -d --pid-file=hg.pid -A access.log -E errors.log
   $ cat hg.pid >> $DAEMON_PIDS
 
   $ get-with-headers.py localhost:$HGPORT 'raiseerror' transfer-encoding content-type
   500 Internal Server Error
   transfer-encoding: chunked
   
   Internal Server Error (no-eol)
   [1]
 
   $ killdaemons.py
   $ cat errors.log | "$PYTHON" $TESTDIR/filtertraceback.py
   .* Exception happened during processing request '/raiseerror': (re)
   Traceback (most recent call last):
   AttributeError: I am an uncaught error!
   
 
 Uncaught exception after partial content sent
 
   $ hg serve --config extensions.hgweberror=$TESTDIR/hgweberror.py -p $HGPORT -d --pid-file=hg.pid -A access.log -E errors.log
   $ cat hg.pid >> $DAEMON_PIDS
   $ get-with-headers.py localhost:$HGPORT 'raiseerror?partialresponse=1' transfer-encoding content-type
   200 Script output follows
   transfer-encoding: chunked
   content-type: text/plain
   
   partial content
   Internal Server Error (no-eol)
 
   $ killdaemons.py
 
 HTTP 304 works with hgwebdir (issue5844)
 
   $ cat > hgweb.conf << EOF
   > [paths]
   > /repo = $TESTTMP/test
   > EOF
 
   $ hg serve --web-conf hgweb.conf -p $HGPORT -d --pid-file hg.pid -E error.log
   $ cat hg.pid >> $DAEMON_PIDS
 
   $ get-with-headers.py --twice --headeronly localhost:$HGPORT 'repo/static/style.css' - date etag server
   200 Script output follows
   content-length: 2677
   content-type: text/css
   304 Not Modified
 
   $ killdaemons.py
 
   $ cd ..