tests/test-pull.t

sslutil: synchronize hostname matching logic with CPython

sslutil contains its own hostname matching logic. CPython has code
for the same intent. However, it is only available to Python 2.7.9+
(or distributions that have backported 2.7.9's ssl module
improvements).

This patch effectively imports CPython's hostname matching code
from its ssl.py into sslutil.py. The hostname matching code itself
is pretty similar. However, the DNS name matching code is much more
robust and spec conformant.

As the test changes show, this changes some behavior around
wildcard handling and IDNA matching. The new behavior allows
wildcards in the middle of words (e.g. 'f*.com' matches 'foo.com')
This is spec compliant according to RFC 6125 Section 6.5.3 item 3.

There is one test where the matcher is more strict. Before,
'*.a.com' matched '.a.com'. Now it doesn't match. Strictly speaking
this is a security vulnerability.

#require serve

  $ hg init test
  $ cd test

  $ echo foo>foo
  $ hg addremove
  adding foo
  $ hg commit -m 1

  $ hg verify
  checking changesets
  checking manifests
  crosschecking files in changesets and manifests
  checking files
  1 files, 1 changesets, 1 total revisions

  $ hg serve -p $HGPORT -d --pid-file=hg.pid
  $ cat hg.pid >> $DAEMON_PIDS
  $ cd ..

  $ hg clone --pull http://foo:bar@localhost:$HGPORT/ copy
  requesting all changes
  adding changesets
  adding manifests
  adding file changes
  added 1 changesets with 1 changes to 1 files
  updating to branch default
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved

  $ cd copy
  $ hg verify
  checking changesets
  checking manifests
  crosschecking files in changesets and manifests
  checking files
  1 files, 1 changesets, 1 total revisions

  $ hg co
  0 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ cat foo
  foo

  $ hg manifest --debug
  2ed2a3912a0b24502043eae84ee4b279c18b90dd 644   foo

  $ hg pull
  pulling from http://foo@localhost:$HGPORT/
  searching for changes
  no changes found

  $ hg rollback --dry-run --verbose
  repository tip rolled back to revision -1 (undo pull: http://foo:***@localhost:$HGPORT/)

Test pull of non-existing 20 character revision specification, making sure plain ascii identifiers
not are encoded like a node:

  $ hg pull -r 'xxxxxxxxxxxxxxxxxxxy'
  pulling from http://foo@localhost:$HGPORT/
  abort: unknown revision 'xxxxxxxxxxxxxxxxxxxy'!
  [255]
  $ hg pull -r 'xxxxxxxxxxxxxxxxxx y'
  pulling from http://foo@localhost:$HGPORT/
  abort: unknown revision '7878787878787878787878787878787878782079'!
  [255]

Issue622: hg init && hg pull -u URL doesn't checkout default branch

  $ cd ..
  $ hg init empty
  $ cd empty
  $ hg pull -u ../test
  pulling from ../test
  requesting all changes
  adding changesets
  adding manifests
  adding file changes
  added 1 changesets with 1 changes to 1 files
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved

Test 'file:' uri handling:

  $ hg pull -q file://../test-does-not-exist
  abort: file:// URLs can only refer to localhost
  [255]

  $ hg pull -q file://../test
  abort: file:// URLs can only refer to localhost
  [255]

  $ hg pull -q file:../test  # no-msys

It's tricky to make file:// URLs working on every platform with
regular shell commands.

  $ URL=`$PYTHON -c "import os; print 'file://foobar' + ('/' + os.getcwd().replace(os.sep, '/')).replace('//', '/') + '/../test'"`
  $ hg pull -q "$URL"
  abort: file:// URLs can only refer to localhost
  [255]

  $ URL=`$PYTHON -c "import os; print 'file://localhost' + ('/' + os.getcwd().replace(os.sep, '/')).replace('//', '/') + '/../test'"`
  $ hg pull -q "$URL"

  $ cd ..