Fix inconsistency for the stream_out capability in hgweb
During some experiments of mine, the uncompressed cloning could not
be enabled for hgweb.cgi nor hgwebdir.cgi though the server claimed
to be stream_out capable.
The only solution was to enable it using the user's .hgrc file.
This solution is not acceptable when publishing the repos through
an HTTP server because the CGI runs as a www dedicated user whose's
home hgrc file may not be accessible to users publishing their repos
through their userdir.
For such cases we could end up with this typical debug output:
hg --debug clone --uncompressed http://server/hg/project
destination directory: project
sending capabilities command
capabilities: lookup changegroupsubset stream=1
unbundle=HG10GZ,HG10BZ,HG10UN
sending stream_out command
abort: operation forbidden by server
The error lies in the fact the hgweb object defines new accessors
to the repo configuration that trust things by default (untrusted=True)
but the streamclone:stream_out function uses the usual accessors to the
repo.ui object, which do not trust by default (untrusted=False)
Fix this inconsistency, adding a new parameter to the stream_out function.
hgweb then forces a "trust by default" behavior.
# statichttprepo.py - simple http repository class for mercurial
#
# This provides read-only repo access to repositories exported via static http
#
# 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.
from i18n import _
import changelog, filelog, httprangereader
import repo, localrepo, manifest, os, urllib, urllib2, util
class rangereader(httprangereader.httprangereader):
def read(self, size=None):
try:
return httprangereader.httprangereader.read(self, size)
except urllib2.HTTPError, inst:
raise IOError(None, inst)
except urllib2.URLError, inst:
raise IOError(None, inst.reason[1])
def opener(base):
"""return a function that opens files over http"""
p = base
def o(path, mode="r"):
f = "/".join((p, urllib.quote(path)))
return rangereader(f)
return o
class statichttprepository(localrepo.localrepository):
def __init__(self, ui, path):
self._url = path
self.ui = ui
self.path = (path + "/.hg")
self.opener = opener(self.path)
# find requirements
try:
requirements = self.opener("requires").read().splitlines()
except IOError:
requirements = []
# check them
for r in requirements:
if r not in self.supported:
raise repo.RepoError(_("requirement '%s' not supported") % r)
# setup store
if "store" in requirements:
self.encodefn = util.encodefilename
self.decodefn = util.decodefilename
self.spath = self.path + "/store"
else:
self.encodefn = lambda x: x
self.decodefn = lambda x: x
self.spath = self.path
self.sopener = util.encodedopener(opener(self.spath), self.encodefn)
self.manifest = manifest.manifest(self.sopener)
self.changelog = changelog.changelog(self.sopener)
self.tagscache = None
self.nodetagscache = None
self.encodepats = None
self.decodepats = None
def url(self):
return 'static-' + self._url
def dev(self):
return -1
def local(self):
return False
def instance(ui, path, create):
if create:
raise util.Abort(_('cannot create new static-http repository'))
if path.startswith('old-http:'):
ui.warn(_("old-http:// syntax is deprecated, "
"please use static-http:// instead\n"))
path = path[4:]
else:
path = path[7:]
return statichttprepository(ui, path)