Mercurial > hg
view tests/badserverext.py @ 46097:1b5e0d0bdb05
hghave: update the check for virtualenv
This started as `hghave --test-features` failing on Windows in `test-hghave.t`.
IDK how this worked, as neither my Linux nor Windows machines have the old
attribute with virtualenv 20.2.2, even on py2. I think this was noticed
recently because 357d8415aa27 mentioned an AttributeError, and mitigated by
making this py2 only. But as mentioned, this is also a problem on py2 (where
the failure was observed).
When I got this working by removing the attribute reference, the command in the
test failed because the `--no-site-package` argument was removed some time ago.
Therefore, this backs out 357d8415aa27 and references a known good attribute
(which was done to suppress the warning about an unused import) that also
ensures the command does not need the argument. Since there appears to be
(minor) broken stuff on py3, manually apply the `no-py3` guard that was backed
out of the check itself.
Differential Revision: https://phab.mercurial-scm.org/D9547
author | Matt Harbison <matt_harbison@yahoo.com> |
---|---|
date | Tue, 08 Dec 2020 12:43:18 -0500 |
parents | 89a2afe31e82 |
children |
line wrap: on
line source
# badserverext.py - Extension making servers behave badly # # Copyright 2017 Gregory Szorc <gregory.szorc@gmail.com> # # This software may be used and distributed according to the terms of the # GNU General Public License version 2 or any later version. # no-check-code """Extension to make servers behave badly. This extension is useful for testing Mercurial behavior when various network events occur. Various config options in the [badserver] section influence behavior: closebeforeaccept If true, close() the server socket when a new connection arrives before accept() is called. The server will then exit. closeafteraccept If true, the server will close() the client socket immediately after accept(). closeafterrecvbytes If defined, close the client socket after receiving this many bytes. closeaftersendbytes If defined, close the client socket after sending this many bytes. """ from __future__ import absolute_import import socket from mercurial import ( pycompat, registrar, ) from mercurial.hgweb import server configtable = {} configitem = registrar.configitem(configtable) configitem( b'badserver', b'closeafteraccept', default=False, ) configitem( b'badserver', b'closeafterrecvbytes', default=b'0', ) configitem( b'badserver', b'closeaftersendbytes', default=b'0', ) configitem( b'badserver', b'closebeforeaccept', default=False, ) # We can't adjust __class__ on a socket instance. So we define a proxy type. class socketproxy(object): __slots__ = ( '_orig', '_logfp', '_closeafterrecvbytes', '_closeaftersendbytes', ) def __init__( self, obj, logfp, closeafterrecvbytes=0, closeaftersendbytes=0 ): object.__setattr__(self, '_orig', obj) object.__setattr__(self, '_logfp', logfp) object.__setattr__(self, '_closeafterrecvbytes', closeafterrecvbytes) object.__setattr__(self, '_closeaftersendbytes', closeaftersendbytes) def __getattribute__(self, name): if name in ('makefile', 'sendall', '_writelog'): return object.__getattribute__(self, name) return getattr(object.__getattribute__(self, '_orig'), name) def __delattr__(self, name): delattr(object.__getattribute__(self, '_orig'), name) def __setattr__(self, name, value): setattr(object.__getattribute__(self, '_orig'), name, value) def _writelog(self, msg): msg = msg.replace(b'\r', b'\\r').replace(b'\n', b'\\n') object.__getattribute__(self, '_logfp').write(msg) object.__getattribute__(self, '_logfp').write(b'\n') object.__getattribute__(self, '_logfp').flush() def makefile(self, mode, bufsize): f = object.__getattribute__(self, '_orig').makefile(mode, bufsize) logfp = object.__getattribute__(self, '_logfp') closeafterrecvbytes = object.__getattribute__( self, '_closeafterrecvbytes' ) closeaftersendbytes = object.__getattribute__( self, '_closeaftersendbytes' ) return fileobjectproxy( f, logfp, closeafterrecvbytes=closeafterrecvbytes, closeaftersendbytes=closeaftersendbytes, ) def sendall(self, data, flags=0): remaining = object.__getattribute__(self, '_closeaftersendbytes') # No read limit. Call original function. if not remaining: result = object.__getattribute__(self, '_orig').sendall(data, flags) self._writelog(b'sendall(%d) -> %s' % (len(data), data)) return result if len(data) > remaining: newdata = data[0:remaining] else: newdata = data remaining -= len(newdata) result = object.__getattribute__(self, '_orig').sendall(newdata, flags) self._writelog( b'sendall(%d from %d) -> (%d) %s' % (len(newdata), len(data), remaining, newdata) ) object.__setattr__(self, '_closeaftersendbytes', remaining) if remaining <= 0: self._writelog(b'write limit reached; closing socket') object.__getattribute__(self, '_orig').shutdown(socket.SHUT_RDWR) raise Exception('connection closed after sending N bytes') return result # We can't adjust __class__ on socket._fileobject, so define a proxy. class fileobjectproxy(object): __slots__ = ( '_orig', '_logfp', '_closeafterrecvbytes', '_closeaftersendbytes', ) def __init__( self, obj, logfp, closeafterrecvbytes=0, closeaftersendbytes=0 ): object.__setattr__(self, '_orig', obj) object.__setattr__(self, '_logfp', logfp) object.__setattr__(self, '_closeafterrecvbytes', closeafterrecvbytes) object.__setattr__(self, '_closeaftersendbytes', closeaftersendbytes) def __getattribute__(self, name): if name in ('_close', 'read', 'readline', 'write', '_writelog'): return object.__getattribute__(self, name) return getattr(object.__getattribute__(self, '_orig'), name) def __delattr__(self, name): delattr(object.__getattribute__(self, '_orig'), name) def __setattr__(self, name, value): setattr(object.__getattribute__(self, '_orig'), name, value) def _writelog(self, msg): msg = msg.replace(b'\r', b'\\r').replace(b'\n', b'\\n') object.__getattribute__(self, '_logfp').write(msg) object.__getattribute__(self, '_logfp').write(b'\n') object.__getattribute__(self, '_logfp').flush() def _close(self): # Python 3 uses an io.BufferedIO instance. Python 2 uses some file # object wrapper. if pycompat.ispy3: orig = object.__getattribute__(self, '_orig') if hasattr(orig, 'raw'): orig.raw._sock.shutdown(socket.SHUT_RDWR) else: self.close() else: self._sock.shutdown(socket.SHUT_RDWR) def read(self, size=-1): remaining = object.__getattribute__(self, '_closeafterrecvbytes') # No read limit. Call original function. if not remaining: result = object.__getattribute__(self, '_orig').read(size) self._writelog( b'read(%d) -> (%d) (%s) %s' % (size, len(result), result) ) return result origsize = size if size < 0: size = remaining else: size = min(remaining, size) result = object.__getattribute__(self, '_orig').read(size) remaining -= len(result) self._writelog( b'read(%d from %d) -> (%d) %s' % (size, origsize, len(result), result) ) object.__setattr__(self, '_closeafterrecvbytes', remaining) if remaining <= 0: self._writelog(b'read limit reached, closing socket') self._close() # This is the easiest way to abort the current request. raise Exception('connection closed after receiving N bytes') return result def readline(self, size=-1): remaining = object.__getattribute__(self, '_closeafterrecvbytes') # No read limit. Call original function. if not remaining: result = object.__getattribute__(self, '_orig').readline(size) self._writelog( b'readline(%d) -> (%d) %s' % (size, len(result), result) ) return result origsize = size if size < 0: size = remaining else: size = min(remaining, size) result = object.__getattribute__(self, '_orig').readline(size) remaining -= len(result) self._writelog( b'readline(%d from %d) -> (%d) %s' % (size, origsize, len(result), result) ) object.__setattr__(self, '_closeafterrecvbytes', remaining) if remaining <= 0: self._writelog(b'read limit reached; closing socket') self._close() # This is the easiest way to abort the current request. raise Exception('connection closed after receiving N bytes') return result def write(self, data): remaining = object.__getattribute__(self, '_closeaftersendbytes') # No byte limit on this operation. Call original function. if not remaining: self._writelog(b'write(%d) -> %s' % (len(data), data)) result = object.__getattribute__(self, '_orig').write(data) return result if len(data) > remaining: newdata = data[0:remaining] else: newdata = data remaining -= len(newdata) self._writelog( b'write(%d from %d) -> (%d) %s' % (len(newdata), len(data), remaining, newdata) ) result = object.__getattribute__(self, '_orig').write(newdata) object.__setattr__(self, '_closeaftersendbytes', remaining) if remaining <= 0: self._writelog(b'write limit reached; closing socket') self._close() raise Exception('connection closed after sending N bytes') return result def extsetup(ui): # Change the base HTTP server class so various events can be performed. # See SocketServer.BaseServer for how the specially named methods work. class badserver(server.MercurialHTTPServer): def __init__(self, ui, *args, **kwargs): self._ui = ui super(badserver, self).__init__(ui, *args, **kwargs) recvbytes = self._ui.config(b'badserver', b'closeafterrecvbytes') recvbytes = recvbytes.split(b',') self.closeafterrecvbytes = [int(v) for v in recvbytes if v] sendbytes = self._ui.config(b'badserver', b'closeaftersendbytes') sendbytes = sendbytes.split(b',') self.closeaftersendbytes = [int(v) for v in sendbytes if v] # Need to inherit object so super() works. class badrequesthandler(self.RequestHandlerClass, object): def send_header(self, name, value): # Make headers deterministic to facilitate testing. if name.lower() == 'date': value = 'Fri, 14 Apr 2017 00:00:00 GMT' elif name.lower() == 'server': value = 'badhttpserver' return super(badrequesthandler, self).send_header( name, value ) self.RequestHandlerClass = badrequesthandler # Called to accept() a pending socket. def get_request(self): if self._ui.configbool(b'badserver', b'closebeforeaccept'): self.socket.close() # Tells the server to stop processing more requests. self.__shutdown_request = True # Simulate failure to stop processing this request. raise socket.error('close before accept') if self._ui.configbool(b'badserver', b'closeafteraccept'): request, client_address = super(badserver, self).get_request() request.close() raise socket.error('close after accept') return super(badserver, self).get_request() # Does heavy lifting of processing a request. Invokes # self.finish_request() which calls self.RequestHandlerClass() which # is a hgweb.server._httprequesthandler. def process_request(self, socket, address): # Wrap socket in a proxy if we need to count bytes. if self.closeafterrecvbytes: closeafterrecvbytes = self.closeafterrecvbytes.pop(0) else: closeafterrecvbytes = 0 if self.closeaftersendbytes: closeaftersendbytes = self.closeaftersendbytes.pop(0) else: closeaftersendbytes = 0 if closeafterrecvbytes or closeaftersendbytes: socket = socketproxy( socket, self.errorlog, closeafterrecvbytes=closeafterrecvbytes, closeaftersendbytes=closeaftersendbytes, ) return super(badserver, self).process_request(socket, address) server.MercurialHTTPServer = badserver