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# hgweb/hgweb_mod.py - Web interface for a repository.
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#
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# Copyright 21 May 2005 - (c) 2005 Jake Edge <jake@edge2.net>
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# Copyright 2005-2007 Matt Mackall <mpm@selenic.com>
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#
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# This software may be used and distributed according to the terms
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# of the GNU General Public License, incorporated herein by reference.
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import os, mimetypes
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from mercurial.node import hex, nullid
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from mercurial.repo import RepoError
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from mercurial import mdiff, ui, hg, util, patch, hook
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from mercurial import revlog, templater, templatefilters, changegroup
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from common import get_mtime, style_map, paritygen, countgen, ErrorResponse
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from common import HTTP_OK, HTTP_BAD_REQUEST, HTTP_NOT_FOUND, HTTP_SERVER_ERROR
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from request import wsgirequest
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import webcommands, protocol, webutil
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shortcuts = {
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'cl': [('cmd', ['changelog']), ('rev', None)],
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'sl': [('cmd', ['shortlog']), ('rev', None)],
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'cs': [('cmd', ['changeset']), ('node', None)],
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'f': [('cmd', ['file']), ('filenode', None)],
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'fl': [('cmd', ['filelog']), ('filenode', None)],
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'fd': [('cmd', ['filediff']), ('node', None)],
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'fa': [('cmd', ['annotate']), ('filenode', None)],
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'mf': [('cmd', ['manifest']), ('manifest', None)],
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'ca': [('cmd', ['archive']), ('node', None)],
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'tags': [('cmd', ['tags'])],
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'tip': [('cmd', ['changeset']), ('node', ['tip'])],
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'static': [('cmd', ['static']), ('file', None)]
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}
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class hgweb(object):
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def __init__(self, repo, name=None):
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if isinstance(repo, str):
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parentui = ui.ui(report_untrusted=False, interactive=False)
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self.repo = hg.repository(parentui, repo)
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else:
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self.repo = repo
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hook.redirect(True)
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self.mtime = -1
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self.reponame = name
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self.archives = 'zip', 'gz', 'bz2'
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self.stripecount = 1
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self._capabilities = None
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# a repo owner may set web.templates in .hg/hgrc to get any file
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# readable by the user running the CGI script
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self.templatepath = self.config("web", "templates",
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templater.templatepath(),
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untrusted=False)
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# The CGI scripts are often run by a user different from the repo owner.
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# Trust the settings from the .hg/hgrc files by default.
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def config(self, section, name, default=None, untrusted=True):
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return self.repo.ui.config(section, name, default,
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untrusted=untrusted)
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def configbool(self, section, name, default=False, untrusted=True):
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return self.repo.ui.configbool(section, name, default,
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untrusted=untrusted)
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def configlist(self, section, name, default=None, untrusted=True):
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return self.repo.ui.configlist(section, name, default,
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untrusted=untrusted)
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def refresh(self):
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mtime = get_mtime(self.repo.root)
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if mtime != self.mtime:
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self.mtime = mtime
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self.repo = hg.repository(self.repo.ui, self.repo.root)
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self.maxchanges = int(self.config("web", "maxchanges", 10))
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self.stripecount = int(self.config("web", "stripes", 1))
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self.maxshortchanges = int(self.config("web", "maxshortchanges", 60))
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self.maxfiles = int(self.config("web", "maxfiles", 10))
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self.allowpull = self.configbool("web", "allowpull", True)
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self.encoding = self.config("web", "encoding", util._encoding)
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self._capabilities = None
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def capabilities(self):
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if self._capabilities is not None:
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return self._capabilities
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caps = ['lookup', 'changegroupsubset']
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if self.configbool('server', 'uncompressed'):
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caps.append('stream=%d' % self.repo.changelog.version)
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if changegroup.bundlepriority:
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caps.append('unbundle=%s' % ','.join(changegroup.bundlepriority))
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self._capabilities = caps
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return caps
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def run(self):
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if not os.environ.get('GATEWAY_INTERFACE', '').startswith("CGI/1."):
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raise RuntimeError("This function is only intended to be called while running as a CGI script.")
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import mercurial.hgweb.wsgicgi as wsgicgi
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wsgicgi.launch(self)
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def __call__(self, env, respond):
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req = wsgirequest(env, respond)
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self.run_wsgi(req)
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return req
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def run_wsgi(self, req):
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self.refresh()
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# expand form shortcuts
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for k in shortcuts.iterkeys():
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if k in req.form:
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for name, value in shortcuts[k]:
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if value is None:
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value = req.form[k]
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req.form[name] = value
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del req.form[k]
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# work with CGI variables to create coherent structure
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# use SCRIPT_NAME, PATH_INFO and QUERY_STRING as well as our REPO_NAME
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req.url = req.env['SCRIPT_NAME']
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if not req.url.endswith('/'):
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req.url += '/'
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if 'REPO_NAME' in req.env:
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req.url += req.env['REPO_NAME'] + '/'
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if req.env.get('PATH_INFO'):
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parts = req.env.get('PATH_INFO').strip('/').split('/')
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repo_parts = req.env.get('REPO_NAME', '').split('/')
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if parts[:len(repo_parts)] == repo_parts:
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parts = parts[len(repo_parts):]
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query = '/'.join(parts)
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else:
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query = req.env['QUERY_STRING'].split('&', 1)[0]
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query = query.split(';', 1)[0]
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# translate user-visible url structure to internal structure
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args = query.split('/', 2)
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if 'cmd' not in req.form and args and args[0]:
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cmd = args.pop(0)
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style = cmd.rfind('-')
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if style != -1:
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req.form['style'] = [cmd[:style]]
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cmd = cmd[style+1:]
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# avoid accepting e.g. style parameter as command
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if hasattr(webcommands, cmd) or hasattr(protocol, cmd):
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req.form['cmd'] = [cmd]
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if args and args[0]:
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node = args.pop(0)
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req.form['node'] = [node]
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if args:
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req.form['file'] = args
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if cmd == 'static':
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req.form['file'] = req.form['node']
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elif cmd == 'archive':
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fn = req.form['node'][0]
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for type_, spec in self.archive_specs.iteritems():
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ext = spec[2]
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if fn.endswith(ext):
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req.form['node'] = [fn[:-len(ext)]]
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req.form['type'] = [type_]
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# process this if it's a protocol request
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cmd = req.form.get('cmd', [''])[0]
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if cmd in protocol.__all__:
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method = getattr(protocol, cmd)
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method(self, req)
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return
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# process the web interface request
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try:
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tmpl = self.templater(req)
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ctype = tmpl('mimetype', encoding=self.encoding)
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ctype = templater.stringify(ctype)
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if cmd == '':
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req.form['cmd'] = [tmpl.cache['default']]
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cmd = req.form['cmd'][0]
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if cmd not in webcommands.__all__:
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msg = 'no such method: %s' % cmd
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raise ErrorResponse(HTTP_BAD_REQUEST, msg)
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elif cmd == 'file' and 'raw' in req.form.get('style', []):
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self.ctype = ctype
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content = webcommands.rawfile(self, req, tmpl)
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else:
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content = getattr(webcommands, cmd)(self, req, tmpl)
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req.respond(HTTP_OK, ctype)
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req.write(content)
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del tmpl
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except revlog.LookupError, err:
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req.respond(HTTP_NOT_FOUND, ctype)
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msg = str(err)
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if 'manifest' not in msg:
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msg = 'revision not found: %s' % err.name
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req.write(tmpl('error', error=msg))
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except (RepoError, revlog.RevlogError), inst:
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req.respond(HTTP_SERVER_ERROR, ctype)
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req.write(tmpl('error', error=str(inst)))
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except ErrorResponse, inst:
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req.respond(inst.code, ctype)
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req.write(tmpl('error', error=inst.message))
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def templater(self, req):
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# determine scheme, port and server name
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# this is needed to create absolute urls
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proto = req.env.get('wsgi.url_scheme')
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if proto == 'https':
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proto = 'https'
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default_port = "443"
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else:
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proto = 'http'
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default_port = "80"
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port = req.env["SERVER_PORT"]
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port = port != default_port and (":" + port) or ""
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urlbase = '%s://%s%s' % (proto, req.env['SERVER_NAME'], port)
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staticurl = self.config("web", "staticurl") or req.url + 'static/'
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if not staticurl.endswith('/'):
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staticurl += '/'
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# some functions for the templater
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def header(**map):
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yield tmpl('header', encoding=self.encoding, **map)
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def footer(**map):
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yield tmpl("footer", **map)
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def motd(**map):
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yield self.config("web", "motd", "")
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def sessionvars(**map):
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fields = []
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if 'style' in req.form:
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style = req.form['style'][0]
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if style != self.config('web', 'style', ''):
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fields.append(('style', style))
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separator = req.url[-1] == '?' and ';' or '?'
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for name, value in fields:
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yield dict(name=name, value=value, separator=separator)
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separator = ';'
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# figure out which style to use
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style = self.config("web", "style", "")
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if 'style' in req.form:
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style = req.form['style'][0]
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mapfile = style_map(self.templatepath, style)
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if not self.reponame:
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self.reponame = (self.config("web", "name")
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or req.env.get('REPO_NAME')
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or req.url.strip('/') or self.repo.root)
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# create the templater
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tmpl = templater.templater(mapfile, templatefilters.filters,
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defaults={"url": req.url,
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"staticurl": staticurl,
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"urlbase": urlbase,
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"repo": self.reponame,
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"header": header,
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"footer": footer,
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"motd": motd,
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"sessionvars": sessionvars
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})
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return tmpl
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def archivelist(self, nodeid):
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allowed = self.configlist("web", "allow_archive")
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for i, spec in self.archive_specs.iteritems():
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if i in allowed or self.configbool("web", "allow" + i):
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yield {"type" : i, "extension" : spec[2], "node" : nodeid}
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def listfilediffs(self, tmpl, files, changeset):
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for f in files[:self.maxfiles]:
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yield tmpl("filedifflink", node=hex(changeset), file=f)
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if len(files) > self.maxfiles:
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yield tmpl("fileellipses")
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def diff(self, tmpl, node1, node2, files):
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def filterfiles(filters, files):
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l = [x for x in files if x in filters]
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for t in filters:
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if t and t[-1] != os.sep:
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t += os.sep
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l += [x for x in files if x.startswith(t)]
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return l
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parity = paritygen(self.stripecount)
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def diffblock(diff, f, fn):
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yield tmpl("diffblock",
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lines=prettyprintlines(diff),
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parity=parity.next(),
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file=f,
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filenode=hex(fn or nullid))
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blockcount = countgen()
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def prettyprintlines(diff):
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blockno = blockcount.next()
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for lineno, l in enumerate(diff.splitlines(1)):
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if blockno == 0:
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lineno = lineno + 1
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else:
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lineno = "%d.%d" % (blockno, lineno + 1)
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if l.startswith('+'):
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ltype = "difflineplus"
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elif l.startswith('-'):
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ltype = "difflineminus"
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elif l.startswith('@'):
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ltype = "difflineat"
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else:
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ltype = "diffline"
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yield tmpl(ltype,
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line=l,
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lineid="l%s" % lineno,
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linenumber="% 8s" % lineno)
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r = self.repo
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c1 = r.changectx(node1)
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c2 = r.changectx(node2)
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date1 = util.datestr(c1.date())
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date2 = util.datestr(c2.date())
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modified, added, removed, deleted, unknown = r.status(node1, node2)[:5]
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if files:
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modified, added, removed = map(lambda x: filterfiles(files, x),
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(modified, added, removed))
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diffopts = patch.diffopts(self.repo.ui, untrusted=True)
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for f in modified:
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to = c1.filectx(f).data()
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tn = c2.filectx(f).data()
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yield diffblock(mdiff.unidiff(to, date1, tn, date2, f, f,
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opts=diffopts), f, tn)
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for f in added:
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to = None
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tn = c2.filectx(f).data()
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yield diffblock(mdiff.unidiff(to, date1, tn, date2, f, f,
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opts=diffopts), f, tn)
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for f in removed:
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to = c1.filectx(f).data()
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tn = None
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yield diffblock(mdiff.unidiff(to, date1, tn, date2, f, f,
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opts=diffopts), f, tn)
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archive_specs = {
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'bz2': ('application/x-tar', 'tbz2', '.tar.bz2', None),
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'gz': ('application/x-tar', 'tgz', '.tar.gz', None),
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'zip': ('application/zip', 'zip', '.zip', None),
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}
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def check_perm(self, req, op, default):
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'''check permission for operation based on user auth.
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return true if op allowed, else false.
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default is policy to use if no config given.'''
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user = req.env.get('REMOTE_USER')
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deny = self.configlist('web', 'deny_' + op)
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if deny and (not user or deny == ['*'] or user in deny):
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return False
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allow = self.configlist('web', 'allow_' + op)
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return (allow and (allow == ['*'] or user in allow)) or default
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