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hgweb: support constructing URLs from an alternate base URL...
hgweb: support constructing URLs from an alternate base URL The web.baseurl config option allows server operators to define a custom URL for hosted content. The way it works today is that hgwebdir parses this config option into URL components then updates the appropriate WSGI environment variables so the request "lies" about its details. For example, SERVER_NAME is updated to reflect the alternate base URL's hostname. The WSGI environment should not be modified because WSGI applications may want to know the original request details (for debugging, etc). This commit teaches our request parser about the existence of an alternate base URL. If defined, the advertised URL and other self-reflected paths will take the alternate base URL into account. The hgweb WSGI application didn't use web.baseurl. But hgwebdir did. We update hgwebdir to alter the environment parsing accordingly. The old code around environment manipulation has been removed. With this change, parserequestfromenv() has grown to a bit unwieldy. Now that practically everyone is using it, it is obvious that there is some unused features that can be trimmed. So look for this in follow-up commits. Differential Revision: https://phab.mercurial-scm.org/D2822
Gregory Szorc - - Load All Authors

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test-wsgirequest.py
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Gregory Szorc
tests: add test coverage for parsing WSGI requests...
 r36912 from __future__ import absolute_import, print_function
import unittest
from mercurial.hgweb import (
request as requestmod,
)
Gregory Szorc
hgweb: refactor repository name URL parsing...
 r36913 from mercurial import (
error,
)
Gregory Szorc
tests: add test coverage for parsing WSGI requests...
 r36912
DEFAULT_ENV = {
r'REQUEST_METHOD': r'GET',
r'SERVER_NAME': r'testserver',
r'SERVER_PORT': r'80',
r'SERVER_PROTOCOL': r'http',
r'wsgi.version': (1, 0),
r'wsgi.url_scheme': r'http',
r'wsgi.input': None,
r'wsgi.errors': None,
r'wsgi.multithread': False,
r'wsgi.multiprocess': True,
r'wsgi.run_once': False,
}
Gregory Szorc
hgweb: support constructing URLs from an alternate base URL...
 r36916 def parse(env, bodyfh=None, reponame=None, altbaseurl=None, extra=None):
Gregory Szorc
tests: add test coverage for parsing WSGI requests...
 r36912 env = dict(env)
env.update(extra or {})
Gregory Szorc
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 r36916 return requestmod.parserequestfromenv(env, bodyfh, reponame=reponame,
altbaseurl=altbaseurl)
Gregory Szorc
tests: add test coverage for parsing WSGI requests...
 r36912
class ParseRequestTests(unittest.TestCase):
def testdefault(self):
r = parse(DEFAULT_ENV)
self.assertEqual(r.url, b'http://testserver')
self.assertEqual(r.baseurl, b'http://testserver')
self.assertEqual(r.advertisedurl, b'http://testserver')
self.assertEqual(r.advertisedbaseurl, b'http://testserver')
self.assertEqual(r.urlscheme, b'http')
self.assertEqual(r.method, b'GET')
self.assertIsNone(r.remoteuser)
self.assertIsNone(r.remotehost)
self.assertEqual(r.apppath, b'')
self.assertEqual(r.dispatchparts, [])
Gregory Szorc
hgweb: change how dispatch path is reported...
 r36914 self.assertIsNone(r.dispatchpath)
Gregory Szorc
tests: add test coverage for parsing WSGI requests...
 r36912 self.assertIsNone(r.reponame)
self.assertEqual(r.querystring, b'')
self.assertEqual(len(r.qsparams), 0)
self.assertEqual(len(r.headers), 0)
def testcustomport(self):
r = parse(DEFAULT_ENV, extra={
r'SERVER_PORT': r'8000',
})
self.assertEqual(r.url, b'http://testserver:8000')
self.assertEqual(r.baseurl, b'http://testserver:8000')
self.assertEqual(r.advertisedurl, b'http://testserver:8000')
self.assertEqual(r.advertisedbaseurl, b'http://testserver:8000')
r = parse(DEFAULT_ENV, extra={
r'SERVER_PORT': r'4000',
r'wsgi.url_scheme': r'https',
})
self.assertEqual(r.url, b'https://testserver:4000')
self.assertEqual(r.baseurl, b'https://testserver:4000')
self.assertEqual(r.advertisedurl, b'https://testserver:4000')
self.assertEqual(r.advertisedbaseurl, b'https://testserver:4000')
def testhttphost(self):
r = parse(DEFAULT_ENV, extra={
r'HTTP_HOST': r'altserver',
})
self.assertEqual(r.url, b'http://altserver')
self.assertEqual(r.baseurl, b'http://altserver')
self.assertEqual(r.advertisedurl, b'http://testserver')
self.assertEqual(r.advertisedbaseurl, b'http://testserver')
def testscriptname(self):
r = parse(DEFAULT_ENV, extra={
r'SCRIPT_NAME': r'',
})
self.assertEqual(r.url, b'http://testserver')
self.assertEqual(r.baseurl, b'http://testserver')
self.assertEqual(r.advertisedurl, b'http://testserver')
self.assertEqual(r.advertisedbaseurl, b'http://testserver')
self.assertEqual(r.apppath, b'')
self.assertEqual(r.dispatchparts, [])
Gregory Szorc
hgweb: change how dispatch path is reported...
 r36914 self.assertIsNone(r.dispatchpath)
Gregory Szorc
tests: add test coverage for parsing WSGI requests...
 r36912
r = parse(DEFAULT_ENV, extra={
r'SCRIPT_NAME': r'/script',
})
self.assertEqual(r.url, b'http://testserver/script')
self.assertEqual(r.baseurl, b'http://testserver')
self.assertEqual(r.advertisedurl, b'http://testserver/script')
self.assertEqual(r.advertisedbaseurl, b'http://testserver')
self.assertEqual(r.apppath, b'/script')
self.assertEqual(r.dispatchparts, [])
Gregory Szorc
hgweb: change how dispatch path is reported...
 r36914 self.assertIsNone(r.dispatchpath)
Gregory Szorc
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 r36912
r = parse(DEFAULT_ENV, extra={
r'SCRIPT_NAME': r'/multiple words',
})
self.assertEqual(r.url, b'http://testserver/multiple%20words')
self.assertEqual(r.baseurl, b'http://testserver')
self.assertEqual(r.advertisedurl, b'http://testserver/multiple%20words')
self.assertEqual(r.advertisedbaseurl, b'http://testserver')
self.assertEqual(r.apppath, b'/multiple words')
self.assertEqual(r.dispatchparts, [])
Gregory Szorc
hgweb: change how dispatch path is reported...
 r36914 self.assertIsNone(r.dispatchpath)
Gregory Szorc
tests: add test coverage for parsing WSGI requests...
 r36912
def testpathinfo(self):
r = parse(DEFAULT_ENV, extra={
r'PATH_INFO': r'',
})
self.assertEqual(r.url, b'http://testserver')
self.assertEqual(r.baseurl, b'http://testserver')
self.assertEqual(r.advertisedurl, b'http://testserver')
self.assertEqual(r.advertisedbaseurl, b'http://testserver')
self.assertEqual(r.apppath, b'')
self.assertEqual(r.dispatchparts, [])
self.assertEqual(r.dispatchpath, b'')
r = parse(DEFAULT_ENV, extra={
r'PATH_INFO': r'/pathinfo',
})
self.assertEqual(r.url, b'http://testserver/pathinfo')
self.assertEqual(r.baseurl, b'http://testserver')
self.assertEqual(r.advertisedurl, b'http://testserver/pathinfo')
self.assertEqual(r.advertisedbaseurl, b'http://testserver')
self.assertEqual(r.apppath, b'')
self.assertEqual(r.dispatchparts, [b'pathinfo'])
self.assertEqual(r.dispatchpath, b'pathinfo')
r = parse(DEFAULT_ENV, extra={
r'PATH_INFO': r'/one/two/',
})
self.assertEqual(r.url, b'http://testserver/one/two/')
self.assertEqual(r.baseurl, b'http://testserver')
self.assertEqual(r.advertisedurl, b'http://testserver/one/two/')
self.assertEqual(r.advertisedbaseurl, b'http://testserver')
self.assertEqual(r.apppath, b'')
self.assertEqual(r.dispatchparts, [b'one', b'two'])
self.assertEqual(r.dispatchpath, b'one/two')
def testscriptandpathinfo(self):
r = parse(DEFAULT_ENV, extra={
r'SCRIPT_NAME': r'/script',
r'PATH_INFO': r'/pathinfo',
})
self.assertEqual(r.url, b'http://testserver/script/pathinfo')
self.assertEqual(r.baseurl, b'http://testserver')
self.assertEqual(r.advertisedurl, b'http://testserver/script/pathinfo')
self.assertEqual(r.advertisedbaseurl, b'http://testserver')
self.assertEqual(r.apppath, b'/script')
self.assertEqual(r.dispatchparts, [b'pathinfo'])
self.assertEqual(r.dispatchpath, b'pathinfo')
r = parse(DEFAULT_ENV, extra={
r'SCRIPT_NAME': r'/script1/script2',
r'PATH_INFO': r'/path1/path2',
})
self.assertEqual(r.url,
b'http://testserver/script1/script2/path1/path2')
self.assertEqual(r.baseurl, b'http://testserver')
self.assertEqual(r.advertisedurl,
b'http://testserver/script1/script2/path1/path2')
self.assertEqual(r.advertisedbaseurl, b'http://testserver')
self.assertEqual(r.apppath, b'/script1/script2')
self.assertEqual(r.dispatchparts, [b'path1', b'path2'])
self.assertEqual(r.dispatchpath, b'path1/path2')
r = parse(DEFAULT_ENV, extra={
r'HTTP_HOST': r'hostserver',
r'SCRIPT_NAME': r'/script',
r'PATH_INFO': r'/pathinfo',
})
self.assertEqual(r.url, b'http://hostserver/script/pathinfo')
self.assertEqual(r.baseurl, b'http://hostserver')
self.assertEqual(r.advertisedurl, b'http://testserver/script/pathinfo')
self.assertEqual(r.advertisedbaseurl, b'http://testserver')
self.assertEqual(r.apppath, b'/script')
self.assertEqual(r.dispatchparts, [b'pathinfo'])
self.assertEqual(r.dispatchpath, b'pathinfo')
def testreponame(self):
Gregory Szorc
hgweb: refactor repository name URL parsing...
 r36913 """repository path components get stripped from URL."""
with self.assertRaisesRegexp(error.ProgrammingError,
b'reponame requires PATH_INFO'):
parse(DEFAULT_ENV, reponame=b'repo')
Gregory Szorc
tests: add test coverage for parsing WSGI requests...
 r36912
Gregory Szorc
hgweb: refactor repository name URL parsing...
 r36913 with self.assertRaisesRegexp(error.ProgrammingError,
b'PATH_INFO does not begin with repo '
b'name'):
parse(DEFAULT_ENV, reponame=b'repo', extra={
r'PATH_INFO': r'/pathinfo',
})
Gregory Szorc
tests: add test coverage for parsing WSGI requests...
 r36912
Gregory Szorc
hgweb: refactor repository name URL parsing...
 r36913 with self.assertRaisesRegexp(error.ProgrammingError,
b'reponame prefix of PATH_INFO'):
parse(DEFAULT_ENV, reponame=b'repo', extra={
r'PATH_INFO': r'/repoextra/path',
})
r = parse(DEFAULT_ENV, reponame=b'repo', extra={
Gregory Szorc
tests: add test coverage for parsing WSGI requests...
 r36912 r'PATH_INFO': r'/repo/path1/path2',
})
self.assertEqual(r.url, b'http://testserver/repo/path1/path2')
self.assertEqual(r.baseurl, b'http://testserver')
self.assertEqual(r.advertisedurl, b'http://testserver/repo/path1/path2')
self.assertEqual(r.advertisedbaseurl, b'http://testserver')
self.assertEqual(r.apppath, b'/repo')
self.assertEqual(r.dispatchparts, [b'path1', b'path2'])
self.assertEqual(r.dispatchpath, b'path1/path2')
self.assertEqual(r.reponame, b'repo')
Gregory Szorc
hgweb: refactor repository name URL parsing...
 r36913 r = parse(DEFAULT_ENV, reponame=b'prefix/repo', extra={
Gregory Szorc
tests: add test coverage for parsing WSGI requests...
 r36912 r'PATH_INFO': r'/prefix/repo/path1/path2',
})
self.assertEqual(r.url, b'http://testserver/prefix/repo/path1/path2')
self.assertEqual(r.baseurl, b'http://testserver')
self.assertEqual(r.advertisedurl,
b'http://testserver/prefix/repo/path1/path2')
self.assertEqual(r.advertisedbaseurl, b'http://testserver')
self.assertEqual(r.apppath, b'/prefix/repo')
self.assertEqual(r.dispatchparts, [b'path1', b'path2'])
self.assertEqual(r.dispatchpath, b'path1/path2')
self.assertEqual(r.reponame, b'prefix/repo')
Gregory Szorc
hgweb: support constructing URLs from an alternate base URL...
 r36916 def testaltbaseurl(self):
# Simple hostname remap.
r = parse(DEFAULT_ENV, altbaseurl='http://altserver')
self.assertEqual(r.url, b'http://testserver')
self.assertEqual(r.baseurl, b'http://testserver')
self.assertEqual(r.advertisedurl, b'http://altserver')
self.assertEqual(r.advertisedbaseurl, b'http://altserver')
self.assertEqual(r.urlscheme, b'http')
self.assertEqual(r.apppath, b'')
self.assertEqual(r.dispatchparts, [])
self.assertIsNone(r.dispatchpath)
self.assertIsNone(r.reponame)
# With a custom port.
r = parse(DEFAULT_ENV, altbaseurl='http://altserver:8000')
self.assertEqual(r.url, b'http://testserver')
self.assertEqual(r.baseurl, b'http://testserver')
self.assertEqual(r.advertisedurl, b'http://altserver:8000')
self.assertEqual(r.advertisedbaseurl, b'http://altserver:8000')
self.assertEqual(r.urlscheme, b'http')
self.assertEqual(r.apppath, b'')
self.assertEqual(r.dispatchparts, [])
self.assertIsNone(r.dispatchpath)
self.assertIsNone(r.reponame)
# With a changed protocol.
r = parse(DEFAULT_ENV, altbaseurl='https://altserver')
self.assertEqual(r.url, b'http://testserver')
self.assertEqual(r.baseurl, b'http://testserver')
self.assertEqual(r.advertisedurl, b'https://altserver')
self.assertEqual(r.advertisedbaseurl, b'https://altserver')
# URL scheme is defined as the actual scheme, not advertised.
self.assertEqual(r.urlscheme, b'http')
self.assertEqual(r.apppath, b'')
self.assertEqual(r.dispatchparts, [])
self.assertIsNone(r.dispatchpath)
self.assertIsNone(r.reponame)
# Need to specify explicit port number for proper https:// alt URLs.
r = parse(DEFAULT_ENV, altbaseurl='https://altserver:443')
self.assertEqual(r.url, b'http://testserver')
self.assertEqual(r.baseurl, b'http://testserver')
self.assertEqual(r.advertisedurl, b'https://altserver')
self.assertEqual(r.advertisedbaseurl, b'https://altserver')
self.assertEqual(r.urlscheme, b'http')
self.assertEqual(r.apppath, b'')
self.assertEqual(r.dispatchparts, [])
self.assertIsNone(r.dispatchpath)
self.assertIsNone(r.reponame)
# With only PATH_INFO defined.
r = parse(DEFAULT_ENV, altbaseurl='http://altserver', extra={
r'PATH_INFO': r'/path1/path2',
})
self.assertEqual(r.url, b'http://testserver/path1/path2')
self.assertEqual(r.baseurl, b'http://testserver')
self.assertEqual(r.advertisedurl, b'http://altserver/path1/path2')
self.assertEqual(r.advertisedbaseurl, b'http://altserver')
self.assertEqual(r.urlscheme, b'http')
self.assertEqual(r.apppath, b'')
self.assertEqual(r.dispatchparts, [b'path1', b'path2'])
self.assertEqual(r.dispatchpath, b'path1/path2')
self.assertIsNone(r.reponame)
# Path on alt URL.
r = parse(DEFAULT_ENV, altbaseurl='http://altserver/altpath')
self.assertEqual(r.url, b'http://testserver')
self.assertEqual(r.baseurl, b'http://testserver')
self.assertEqual(r.advertisedurl, b'http://altserver/altpath')
self.assertEqual(r.advertisedbaseurl, b'http://altserver')
self.assertEqual(r.urlscheme, b'http')
self.assertEqual(r.apppath, b'/altpath')
self.assertEqual(r.dispatchparts, [])
self.assertIsNone(r.dispatchpath)
self.assertIsNone(r.reponame)
# With a trailing slash.
r = parse(DEFAULT_ENV, altbaseurl='http://altserver/altpath/')
self.assertEqual(r.url, b'http://testserver')
self.assertEqual(r.baseurl, b'http://testserver')
self.assertEqual(r.advertisedurl, b'http://altserver/altpath/')
self.assertEqual(r.advertisedbaseurl, b'http://altserver')
self.assertEqual(r.urlscheme, b'http')
self.assertEqual(r.apppath, b'/altpath/')
self.assertEqual(r.dispatchparts, [])
self.assertIsNone(r.dispatchpath)
self.assertIsNone(r.reponame)
# PATH_INFO + path on alt URL.
r = parse(DEFAULT_ENV, altbaseurl='http://altserver/altpath', extra={
r'PATH_INFO': r'/path1/path2',
})
self.assertEqual(r.url, b'http://testserver/path1/path2')
self.assertEqual(r.baseurl, b'http://testserver')
self.assertEqual(r.advertisedurl,
b'http://altserver/altpath/path1/path2')
self.assertEqual(r.advertisedbaseurl, b'http://altserver')
self.assertEqual(r.urlscheme, b'http')
self.assertEqual(r.apppath, b'/altpath')
self.assertEqual(r.dispatchparts, [b'path1', b'path2'])
self.assertEqual(r.dispatchpath, b'path1/path2')
self.assertIsNone(r.reponame)
# PATH_INFO + path on alt URL with trailing slash.
r = parse(DEFAULT_ENV, altbaseurl='http://altserver/altpath/', extra={
r'PATH_INFO': r'/path1/path2',
})
self.assertEqual(r.url, b'http://testserver/path1/path2')
self.assertEqual(r.baseurl, b'http://testserver')
self.assertEqual(r.advertisedurl,
b'http://altserver/altpath//path1/path2')
self.assertEqual(r.advertisedbaseurl, b'http://altserver')
self.assertEqual(r.urlscheme, b'http')
self.assertEqual(r.apppath, b'/altpath/')
self.assertEqual(r.dispatchparts, [b'path1', b'path2'])
self.assertEqual(r.dispatchpath, b'path1/path2')
self.assertIsNone(r.reponame)
# Local SCRIPT_NAME is ignored.
r = parse(DEFAULT_ENV, altbaseurl='http://altserver', extra={
r'SCRIPT_NAME': r'/script',
r'PATH_INFO': r'/path1/path2',
})
self.assertEqual(r.url, b'http://testserver/script/path1/path2')
self.assertEqual(r.baseurl, b'http://testserver')
self.assertEqual(r.advertisedurl, b'http://altserver/path1/path2')
self.assertEqual(r.advertisedbaseurl, b'http://altserver')
self.assertEqual(r.urlscheme, b'http')
self.assertEqual(r.apppath, b'')
self.assertEqual(r.dispatchparts, [b'path1', b'path2'])
self.assertEqual(r.dispatchpath, b'path1/path2')
self.assertIsNone(r.reponame)
# Use remote's path for script name, app path
r = parse(DEFAULT_ENV, altbaseurl='http://altserver/altroot', extra={
r'SCRIPT_NAME': r'/script',
r'PATH_INFO': r'/path1/path2',
})
self.assertEqual(r.url, b'http://testserver/script/path1/path2')
self.assertEqual(r.baseurl, b'http://testserver')
self.assertEqual(r.advertisedurl,
b'http://altserver/altroot/path1/path2')
self.assertEqual(r.advertisedbaseurl, b'http://altserver')
self.assertEqual(r.urlscheme, b'http')
self.assertEqual(r.apppath, b'/altroot')
self.assertEqual(r.dispatchparts, [b'path1', b'path2'])
self.assertEqual(r.dispatchpath, b'path1/path2')
self.assertIsNone(r.reponame)
# reponame is factored in properly.
r = parse(DEFAULT_ENV, reponame=b'repo',
altbaseurl='http://altserver/altroot',
extra={
r'SCRIPT_NAME': r'/script',
r'PATH_INFO': r'/repo/path1/path2',
})
self.assertEqual(r.url, b'http://testserver/script/repo/path1/path2')
self.assertEqual(r.baseurl, b'http://testserver')
self.assertEqual(r.advertisedurl,
b'http://altserver/altroot/repo/path1/path2')
self.assertEqual(r.advertisedbaseurl, b'http://altserver')
self.assertEqual(r.apppath, b'/altroot/repo')
self.assertEqual(r.dispatchparts, [b'path1', b'path2'])
self.assertEqual(r.dispatchpath, b'path1/path2')
self.assertEqual(r.reponame, b'repo')
Gregory Szorc
tests: add test coverage for parsing WSGI requests...
 r36912 if __name__ == '__main__':
import silenttestrunner
silenttestrunner.main(__name__)