add hg and python

1 files changed, 333 insertions, 0 deletions

diff --git a/sys/src/cmd/hg/mercurial/hgweb/hgwebdir_mod.py b/sys/src/cmd/hg/mercurial/hgweb/hgwebdir_mod.py
new file mode 100644
index 000000000..64cc99899
--- /dev/null
+++ b/sys/src/cmd/hg/mercurial/hgweb/hgwebdir_mod.py
@@ -0,0 +1,333 @@
+# hgweb/hgwebdir_mod.py - Web interface for a directory of repositories.
+#
+# Copyright 21 May 2005 - (c) 2005 Jake Edge <jake@edge2.net>
+# Copyright 2005, 2006 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, re, time
+from mercurial.i18n import _
+from mercurial import ui, hg, util, templater
+from mercurial import error, encoding
+from common import ErrorResponse, get_mtime, staticfile, paritygen,\
+                   get_contact, HTTP_OK, HTTP_NOT_FOUND, HTTP_SERVER_ERROR
+from hgweb_mod import hgweb
+from request import wsgirequest
+import webutil
+
+def cleannames(items):
+    return [(util.pconvert(name).strip('/'), path) for name, path in items]
+
+def findrepos(paths):
+    repos = {}
+    for prefix, root in cleannames(paths):
+        roothead, roottail = os.path.split(root)
+        # "foo = /bar/*" makes every subrepo of /bar/ to be
+        # mounted as foo/subrepo
+        # and "foo = /bar/**" also recurses into the subdirectories,
+        # remember to use it without working dir.
+        try:
+            recurse = {'*': False, '**': True}[roottail]
+        except KeyError:
+            repos[prefix] = root
+            continue
+        roothead = os.path.normpath(roothead)
+        for path in util.walkrepos(roothead, followsym=True, recurse=recurse):
+            path = os.path.normpath(path)
+            name = util.pconvert(path[len(roothead):]).strip('/')
+            if prefix:
+                name = prefix + '/' + name
+            repos[name] = path
+    return repos.items()
+
+class hgwebdir(object):
+    refreshinterval = 20
+
+    def __init__(self, conf, baseui=None):
+        self.conf = conf
+        self.baseui = baseui
+        self.lastrefresh = 0
+        self.refresh()
+
+    def refresh(self):
+        if self.lastrefresh + self.refreshinterval > time.time():
+            return
+
+        if self.baseui:
+            self.ui = self.baseui.copy()
+        else:
+            self.ui = ui.ui()
+            self.ui.setconfig('ui', 'report_untrusted', 'off')
+            self.ui.setconfig('ui', 'interactive', 'off')
+
+        if not isinstance(self.conf, (dict, list, tuple)):
+            map = {'paths': 'hgweb-paths'}
+            self.ui.readconfig(self.conf, remap=map, trust=True)
+            paths = self.ui.configitems('hgweb-paths')
+        elif isinstance(self.conf, (list, tuple)):
+            paths = self.conf
+        elif isinstance(self.conf, dict):
+            paths = self.conf.items()
+
+        encoding.encoding = self.ui.config('web', 'encoding',
+                                           encoding.encoding)
+        self.motd = self.ui.config('web', 'motd')
+        self.style = self.ui.config('web', 'style', 'paper')
+        self.stripecount = self.ui.config('web', 'stripes', 1)
+        if self.stripecount:
+            self.stripecount = int(self.stripecount)
+        self._baseurl = self.ui.config('web', 'baseurl')
+
+        self.repos = findrepos(paths)
+        for prefix, root in self.ui.configitems('collections'):
+            prefix = util.pconvert(prefix)
+            for path in util.walkrepos(root, followsym=True):
+                repo = os.path.normpath(path)
+                name = util.pconvert(repo)
+                if name.startswith(prefix):
+                    name = name[len(prefix):]
+                self.repos.append((name.lstrip('/'), repo))
+
+        self.repos.sort()
+        self.lastrefresh = time.time()
+
+    def run(self):
+        if not os.environ.get('GATEWAY_INTERFACE', '').startswith("CGI/1."):
+            raise RuntimeError("This function is only intended to be "
+                               "called while running as a CGI script.")
+        import mercurial.hgweb.wsgicgi as wsgicgi
+        wsgicgi.launch(self)
+
+    def __call__(self, env, respond):
+        req = wsgirequest(env, respond)
+        return self.run_wsgi(req)
+
+    def read_allowed(self, ui, req):
+        """Check allow_read and deny_read config options of a repo's ui object
+        to determine user permissions.  By default, with neither option set (or
+        both empty), allow all users to read the repo.  There are two ways a
+        user can be denied read access:  (1) deny_read is not empty, and the
+        user is unauthenticated or deny_read contains user (or *), and (2)
+        allow_read is not empty and the user is not in allow_read.  Return True
+        if user is allowed to read the repo, else return False."""
+
+        user = req.env.get('REMOTE_USER')
+
+        deny_read = ui.configlist('web', 'deny_read', untrusted=True)
+        if deny_read and (not user or deny_read == ['*'] or user in deny_read):
+            return False
+
+        allow_read = ui.configlist('web', 'allow_read', untrusted=True)
+        # by default, allow reading if no allow_read option has been set
+        if (not allow_read) or (allow_read == ['*']) or (user in allow_read):
+            return True
+
+        return False
+
+    def run_wsgi(self, req):
+        try:
+            try:
+                self.refresh()
+
+                virtual = req.env.get("PATH_INFO", "").strip('/')
+                tmpl = self.templater(req)
+                ctype = tmpl('mimetype', encoding=encoding.encoding)
+                ctype = templater.stringify(ctype)
+
+                # a static file
+                if virtual.startswith('static/') or 'static' in req.form:
+                    if virtual.startswith('static/'):
+                        fname = virtual[7:]
+                    else:
+                        fname = req.form['static'][0]
+                    static = templater.templatepath('static')
+                    return (staticfile(static, fname, req),)
+
+                # top-level index
+                elif not virtual:
+                    req.respond(HTTP_OK, ctype)
+                    return self.makeindex(req, tmpl)
+
+                # nested indexes and hgwebs
+
+                repos = dict(self.repos)
+                while virtual:
+                    real = repos.get(virtual)
+                    if real:
+                        req.env['REPO_NAME'] = virtual
+                        try:
+                            repo = hg.repository(self.ui, real)
+                            return hgweb(repo).run_wsgi(req)
+                        except IOError, inst:
+                            msg = inst.strerror
+                            raise ErrorResponse(HTTP_SERVER_ERROR, msg)
+                        except error.RepoError, inst:
+                            raise ErrorResponse(HTTP_SERVER_ERROR, str(inst))
+
+                    # browse subdirectories
+                    subdir = virtual + '/'
+                    if [r for r in repos if r.startswith(subdir)]:
+                        req.respond(HTTP_OK, ctype)
+                        return self.makeindex(req, tmpl, subdir)
+
+                    up = virtual.rfind('/')
+                    if up < 0:
+                        break
+                    virtual = virtual[:up]
+
+                # prefixes not found
+                req.respond(HTTP_NOT_FOUND, ctype)
+                return tmpl("notfound", repo=virtual)
+
+            except ErrorResponse, err:
+                req.respond(err, ctype)
+                return tmpl('error', error=err.message or '')
+        finally:
+            tmpl = None
+
+    def makeindex(self, req, tmpl, subdir=""):
+
+        def archivelist(ui, nodeid, url):
+            allowed = ui.configlist("web", "allow_archive", untrusted=True)
+            for i in [('zip', '.zip'), ('gz', '.tar.gz'), ('bz2', '.tar.bz2')]:
+                if i[0] in allowed or ui.configbool("web", "allow" + i[0],
+                                                    untrusted=True):
+                    yield {"type" : i[0], "extension": i[1],
+                           "node": nodeid, "url": url}
+
+        sortdefault = 'name', False
+        def entries(sortcolumn="", descending=False, subdir="", **map):
+            rows = []
+            parity = paritygen(self.stripecount)
+            for name, path in self.repos:
+                if not name.startswith(subdir):
+                    continue
+                name = name[len(subdir):]
+
+                u = self.ui.copy()
+                try:
+                    u.readconfig(os.path.join(path, '.hg', 'hgrc'))
+                except Exception, e:
+                    u.warn(_('error reading %s/.hg/hgrc: %s\n') % (path, e))
+                    continue
+                def get(section, name, default=None):
+                    return u.config(section, name, default, untrusted=True)
+
+                if u.configbool("web", "hidden", untrusted=True):
+                    continue
+
+                if not self.read_allowed(u, req):
+                    continue
+
+                parts = [name]
+                if 'PATH_INFO' in req.env:
+                    parts.insert(0, req.env['PATH_INFO'].rstrip('/'))
+                if req.env['SCRIPT_NAME']:
+                    parts.insert(0, req.env['SCRIPT_NAME'])
+                m = re.match('((?:https?://)?)(.*)', '/'.join(parts))
+                # squish repeated slashes out of the path component
+                url = m.group(1) + re.sub('/+', '/', m.group(2)) + '/'
+
+                # update time with local timezone
+                try:
+                    d = (get_mtime(path), util.makedate()[1])
+                except OSError:
+                    continue
+
+                contact = get_contact(get)
+                description = get("web", "description", "")
+                name = get("web", "name", name)
+                row = dict(contact=contact or "unknown",
+                           contact_sort=contact.upper() or "unknown",
+                           name=name,
+                           name_sort=name,
+                           url=url,
+                           description=description or "unknown",
+                           description_sort=description.upper() or "unknown",
+                           lastchange=d,
+                           lastchange_sort=d[1]-d[0],
+                           archives=archivelist(u, "tip", url))
+                if (not sortcolumn or (sortcolumn, descending) == sortdefault):
+                    # fast path for unsorted output
+                    row['parity'] = parity.next()
+                    yield row
+                else:
+                    rows.append((row["%s_sort" % sortcolumn], row))
+            if rows:
+                rows.sort()
+                if descending:
+                    rows.reverse()
+                for key, row in rows:
+                    row['parity'] = parity.next()
+                    yield row
+
+        self.refresh()
+        sortable = ["name", "description", "contact", "lastchange"]
+        sortcolumn, descending = sortdefault
+        if 'sort' in req.form:
+            sortcolumn = req.form['sort'][0]
+            descending = sortcolumn.startswith('-')
+            if descending:
+                sortcolumn = sortcolumn[1:]
+            if sortcolumn not in sortable:
+                sortcolumn = ""
+
+        sort = [("sort_%s" % column,
+                 "%s%s" % ((not descending and column == sortcolumn)
+                            and "-" or "", column))
+                for column in sortable]
+
+        self.refresh()
+        if self._baseurl is not None:
+            req.env['SCRIPT_NAME'] = self._baseurl
+
+        return tmpl("index", entries=entries, subdir=subdir,
+                    sortcolumn=sortcolumn, descending=descending,
+                    **dict(sort))
+
+    def templater(self, req):
+
+        def header(**map):
+            yield tmpl('header', encoding=encoding.encoding, **map)
+
+        def footer(**map):
+            yield tmpl("footer", **map)
+
+        def motd(**map):
+            if self.motd is not None:
+                yield self.motd
+            else:
+                yield config('web', 'motd', '')
+
+        def config(section, name, default=None, untrusted=True):
+            return self.ui.config(section, name, default, untrusted)
+
+        if self._baseurl is not None:
+            req.env['SCRIPT_NAME'] = self._baseurl
+
+        url = req.env.get('SCRIPT_NAME', '')
+        if not url.endswith('/'):
+            url += '/'
+
+        vars = {}
+        style = self.style
+        if 'style' in req.form:
+            vars['style'] = style = req.form['style'][0]
+        start = url[-1] == '?' and '&' or '?'
+        sessionvars = webutil.sessionvars(vars, start)
+
+        staticurl = config('web', 'staticurl') or url + 'static/'
+        if not staticurl.endswith('/'):
+            staticurl += '/'
+
+        style = 'style' in req.form and req.form['style'][0] or self.style
+        mapfile = templater.stylemap(style)
+        tmpl = templater.templater(mapfile,
+                                   defaults={"header": header,
+                                             "footer": footer,
+                                             "motd": motd,
+                                             "url": url,
+                                             "staticurl": staticurl,
+                                             "sessionvars": sessionvars})
+        return tmpl