svn: added support for hooks management of git and subversion.

- new svn hooks that allow execution of rhodecode integrations
- unified hook handling for git/svn
- this code is backported from rhodecode, vcsserver which executes hooks
  is proper place for this
- hooks are now installable via remote call of rhodecode to specific repository

vcsserver/hook_utils/__init__.py

@@ -0,0 +1,154 b''
+# -*- coding: utf-8 -*-
+
+# RhodeCode VCSServer provides access to different vcs backends via network.
+# Copyright (C) 2014-2018 RhodeCode GmbH
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301  USA
+
+import re
+import os
+import sys
+import datetime
+import logging
+import pkg_resources
+
+import vcsserver
+
+log = logging.getLogger(__name__)
+
+
+def install_git_hooks(repo_path, bare, executable=None, force_create=False):
+    """
+    Creates a RhodeCode hook inside a git repository
+
+    :param repo_path: path to repository
+    :param executable: binary executable to put in the hooks
+    :param force_create: Create even if same name hook exists
+    """
+    executable = executable or sys.executable
+    hooks_path = os.path.join(repo_path, 'hooks')
+    if not bare:
+        hooks_path = os.path.join(repo_path, '.git', 'hooks')
+    if not os.path.isdir(hooks_path):
+        os.makedirs(hooks_path, mode=0777)
+
+    tmpl_post = pkg_resources.resource_string(
+        'vcsserver', '/'.join(
+            ('hook_utils', 'hook_templates', 'git_post_receive.py.tmpl')))
+    tmpl_pre = pkg_resources.resource_string(
+        'vcsserver', '/'.join(
+            ('hook_utils', 'hook_templates', 'git_pre_receive.py.tmpl')))
+
+    path = ''  # not used for now
+    timestamp = datetime.datetime.utcnow().isoformat()
+
+    for h_type, template in [('pre', tmpl_pre), ('post', tmpl_post)]:
+        log.debug('Installing git hook in repo %s', repo_path)
+        _hook_file = os.path.join(hooks_path, '%s-receive' % h_type)
+        _rhodecode_hook = check_rhodecode_hook(_hook_file)
+
+        if _rhodecode_hook or force_create:
+            log.debug('writing git %s hook file at %s !', h_type, _hook_file)
+            try:
+                with open(_hook_file, 'wb') as f:
+                    template = template.replace(
+                        '_TMPL_', vcsserver.__version__)
+                    template = template.replace('_DATE_', timestamp)
+                    template = template.replace('_ENV_', executable)
+                    template = template.replace('_PATH_', path)
+                    f.write(template)
+                os.chmod(_hook_file, 0755)
+            except IOError:
+                log.exception('error writing hook file %s', _hook_file)
+        else:
+            log.debug('skipping writing hook file')
+
+    return True
+
+
+def install_svn_hooks(repo_path, executable=None, force_create=False):
+    """
+    Creates RhodeCode hooks inside a svn repository
+
+    :param repo_path: path to repository
+    :param executable: binary executable to put in the hooks
+    :param force_create: Create even if same name hook exists
+    """
+    executable = executable or sys.executable
+    hooks_path = os.path.join(repo_path, 'hooks')
+    if not os.path.isdir(hooks_path):
+        os.makedirs(hooks_path, mode=0777)
+
+    tmpl_post = pkg_resources.resource_string(
+        'vcsserver', '/'.join(
+            ('hook_utils', 'hook_templates', 'svn_post_commit_hook.py.tmpl')))
+    tmpl_pre = pkg_resources.resource_string(
+        'vcsserver', '/'.join(
+            ('hook_utils', 'hook_templates', 'svn_pre_commit_hook.py.tmpl')))
+
+    path = ''  # not used for now
+    timestamp = datetime.datetime.utcnow().isoformat()
+
+    for h_type, template in [('pre', tmpl_pre), ('post', tmpl_post)]:
+        log.debug('Installing svn hook in repo %s', repo_path)
+        _hook_file = os.path.join(hooks_path, '%s-commit' % h_type)
+        _rhodecode_hook = check_rhodecode_hook(_hook_file)
+
+        if _rhodecode_hook or force_create:
+            log.debug('writing svn %s hook file at %s !', h_type, _hook_file)
+
+            try:
+                with open(_hook_file, 'wb') as f:
+                    template = template.replace(
+                        '_TMPL_', vcsserver.__version__)
+                    template = template.replace('_DATE_', timestamp)
+                    template = template.replace('_ENV_', executable)
+                    template = template.replace('_PATH_', path)
+
+                    f.write(template)
+                os.chmod(_hook_file, 0755)
+            except IOError:
+                log.exception('error writing hook file %s', _hook_file)
+        else:
+            log.debug('skipping writing hook file')
+
+    return True
+
+
+def check_rhodecode_hook(hook_path):
+    """
+    Check if the hook was created by RhodeCode
+    """
+    if not os.path.exists(hook_path):
+        return True
+
+    log.debug('hook exists, checking if it is from rhodecode')
+    hook_content = read_hook_content(hook_path)
+    matches = re.search(r'(?:RC_HOOK_VER)\s*=\s*(.*)', hook_content)
+    if matches:
+        try:
+            version = matches.groups()[0]
+            log.debug('got version %s from hooks.', version)
+            return True
+        except Exception:
+            log.exception("Exception while reading the hook version.")
+
+    return False
+
+
+def read_hook_content(hook_path):
+    with open(hook_path, 'rb') as f:
+        content = f.read()
+    return content

vcsserver/hook_utils/hook_templates/git_post_receive.py.tmpl

@@ -0,0 +1,51 b''
+#!_ENV_
+import os
+import sys
+path_adjust = [_PATH_]
+
+if path_adjust:
+    sys.path = path_adjust
+
+try:
+    from vcsserver import hooks
+except ImportError:
+    if os.environ.get('RC_DEBUG_GIT_HOOK'):
+        import traceback
+        print traceback.format_exc()
+    hooks = None
+
+
+# TIMESTAMP: _DATE_
+RC_HOOK_VER = '_TMPL_'
+
+
+def main():
+    if hooks is None:
+        # exit with success if we cannot import vcsserver.hooks !!
+        # this allows simply push to this repo even without rhodecode
+        sys.exit(0)
+
+    if os.environ.get('RC_SKIP_HOOKS'):
+        sys.exit(0)
+
+    repo_path = os.getcwd()
+    push_data = sys.stdin.readlines()
+    os.environ['RC_HOOK_VER'] = RC_HOOK_VER
+    # os.environ is modified here by a subprocess call that
+    # runs git and later git executes this hook.
+    # Environ gets some additional info from rhodecode system
+    # like IP or username from basic-auth
+    try:
+        result = hooks.git_post_receive(repo_path, push_data, os.environ)
+        sys.exit(result)
+    except Exception as error:
+        # TODO: johbo: Improve handling of this special case
+        if not getattr(error, '_vcs_kind', None) == 'repo_locked':
+            raise
+        print 'ERROR:', error
+        sys.exit(1)
+    sys.exit(0)
+
+
+if __name__ == '__main__':
+    main()

vcsserver/hook_utils/hook_templates/git_pre_receive.py.tmpl

@@ -0,0 +1,51 b''
+#!_ENV_
+import os
+import sys
+path_adjust = [_PATH_]
+
+if path_adjust:
+    sys.path = path_adjust
+
+try:
+    from vcsserver import hooks
+except ImportError:
+    if os.environ.get('RC_DEBUG_GIT_HOOK'):
+        import traceback
+        print traceback.format_exc()
+    hooks = None
+
+
+# TIMESTAMP: _DATE_
+RC_HOOK_VER = '_TMPL_'
+
+
+def main():
+    if hooks is None:
+        # exit with success if we cannot import vcsserver.hooks !!
+        # this allows simply push to this repo even without rhodecode
+        sys.exit(0)
+
+    if os.environ.get('RC_SKIP_HOOKS'):
+        sys.exit(0)
+
+    repo_path = os.getcwd()
+    push_data = sys.stdin.readlines()
+    os.environ['RC_HOOK_VER'] = RC_HOOK_VER
+    # os.environ is modified here by a subprocess call that
+    # runs git and later git executes this hook.
+    # Environ gets some additional info from rhodecode system
+    # like IP or username from basic-auth
+    try:
+        result = hooks.git_pre_receive(repo_path, push_data, os.environ)
+        sys.exit(result)
+    except Exception as error:
+        # TODO: johbo: Improve handling of this special case
+        if not getattr(error, '_vcs_kind', None) == 'repo_locked':
+            raise
+        print 'ERROR:', error
+        sys.exit(1)
+    sys.exit(0)
+
+
+if __name__ == '__main__':
+    main()

vcsserver/hook_utils/hook_templates/svn_post_commit_hook.py.tmpl

@@ -0,0 +1,50 b''
+#!_ENV_
+
+import os
+import sys
+path_adjust = [_PATH_]
+
+if path_adjust:
+    sys.path = path_adjust
+
+try:
+    from vcsserver import hooks
+except ImportError:
+    if os.environ.get('RC_DEBUG_SVN_HOOK'):
+        import traceback
+        print traceback.format_exc()
+    hooks = None
+
+
+# TIMESTAMP: _DATE_
+RC_HOOK_VER = '_TMPL_'
+
+
+def main():
+    if hooks is None:
+        # exit with success if we cannot import vcsserver.hooks !!
+        # this allows simply push to this repo even without rhodecode
+        sys.exit(0)
+
+    if os.environ.get('RC_SKIP_HOOKS'):
+        sys.exit(0)
+    repo_path = os.getcwd()
+    push_data = sys.argv[1:]
+
+    os.environ['RC_HOOK_VER'] = RC_HOOK_VER
+
+    try:
+        result = hooks.svn_post_commit(repo_path, push_data, os.environ)
+        sys.exit(result)
+    except Exception as error:
+        # TODO: johbo: Improve handling of this special case
+        if not getattr(error, '_vcs_kind', None) == 'repo_locked':
+            raise
+        print 'ERROR:', error
+        sys.exit(1)
+    sys.exit(0)
+
+
+
+if __name__ == '__main__':
+    main()

vcsserver/hook_utils/hook_templates/svn_pre_commit_hook.py.tmpl

@@ -0,0 +1,52 b''
+#!_ENV_
+
+import os
+import sys
+path_adjust = [_PATH_]
+
+if path_adjust:
+    sys.path = path_adjust
+
+try:
+    from vcsserver import hooks
+except ImportError:
+    if os.environ.get('RC_DEBUG_SVN_HOOK'):
+        import traceback
+        print traceback.format_exc()
+    hooks = None
+
+
+# TIMESTAMP: _DATE_
+RC_HOOK_VER = '_TMPL_'
+
+
+def main():
+    if os.environ.get('SSH_READ_ONLY') == '1':
+        sys.stderr.write('Only read-only access is allowed')
+        sys.exit(1)
+
+    if hooks is None:
+        # exit with success if we cannot import vcsserver.hooks !!
+        # this allows simply push to this repo even without rhodecode
+        sys.exit(0)
+    if os.environ.get('RC_SKIP_HOOKS'):
+        sys.exit(0)
+    repo_path = os.getcwd()
+    push_data = sys.argv[1:]
+
+    os.environ['RC_HOOK_VER'] = RC_HOOK_VER
+
+    try:
+        result = hooks.svn_pre_commit(repo_path, push_data, os.environ)
+        sys.exit(result)
+    except Exception as error:
+        # TODO: johbo: Improve handling of this special case
+        if not getattr(error, '_vcs_kind', None) == 'repo_locked':
+            raise
+        print 'ERROR:', error
+        sys.exit(1)
+    sys.exit(0)
+
+
+if __name__ == '__main__':
+    main()

vcsserver/tests/__init__.py

@@ -0,0 +1,16 b''
+# RhodeCode VCSServer provides access to different vcs backends via network.
+# Copyright (C) 2014-2018 RhodeCode GmbH
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301  USA

vcsserver/tests/test_install_hooks.py

@@ -0,0 +1,206 b''
+# RhodeCode VCSServer provides access to different vcs backends via network.
+# Copyright (C) 2014-2018 RhodeCode GmbH
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301  USA
+
+import os
+import sys
+import stat
+import pytest
+import vcsserver
+import tempfile
+from vcsserver import hook_utils
+from vcsserver.tests.fixture import no_newline_id_generator
+from vcsserver.utils import AttributeDict
+
+
+class TestCheckRhodecodeHook(object):
+
+    def test_returns_false_when_hook_file_is_wrong_found(self, tmpdir):
+        hook = os.path.join(str(tmpdir), 'fake_hook_file.py')
+        with open(hook, 'wb') as f:
+            f.write('dummy test')
+            result = hook_utils.check_rhodecode_hook(hook)
+            assert result is False
+
+    def test_returns_true_when_no_hook_file_found(self, tmpdir):
+        hook = os.path.join(str(tmpdir), 'fake_hook_file_not_existing.py')
+        result = hook_utils.check_rhodecode_hook(hook)
+        assert result
+
+    @pytest.mark.parametrize("file_content, expected_result", [
+        ("RC_HOOK_VER = '3.3.3'\n", True),
+        ("RC_HOOK = '3.3.3'\n", False),
+    ], ids=no_newline_id_generator)
+    def test_signatures(self, file_content, expected_result, tmpdir):
+        hook = os.path.join(str(tmpdir), 'fake_hook_file_1.py')
+        with open(hook, 'wb') as f:
+            f.write(file_content)
+
+        result = hook_utils.check_rhodecode_hook(hook)
+
+        assert result is expected_result
+
+
+class BaseInstallHooks(object):
+    HOOK_FILES = ()
+
+    def _check_hook_file_mode(self, file_path):
+        assert os.path.exists(file_path), 'path %s missing' % file_path
+        stat_info = os.stat(file_path)
+
+        file_mode = stat.S_IMODE(stat_info.st_mode)
+        expected_mode = int('755', 8)
+        assert expected_mode == file_mode
+
+    def _check_hook_file_content(self, file_path, executable):
+        executable = executable or sys.executable
+        with open(file_path, 'rt') as hook_file:
+            content = hook_file.read()
+
+        expected_env = '#!{}'.format(executable)
+        expected_rc_version = "\nRC_HOOK_VER = '{}'\n".format(
+            vcsserver.__version__)
+        assert content.strip().startswith(expected_env)
+        assert expected_rc_version in content
+
+    def _create_fake_hook(self, file_path, content):
+        with open(file_path, 'w') as hook_file:
+            hook_file.write(content)
+
+    def create_dummy_repo(self, repo_type):
+        tmpdir = tempfile.mkdtemp()
+        repo = AttributeDict()
+        if repo_type == 'git':
+            repo.path = os.path.join(tmpdir, 'test_git_hooks_installation_repo')
+            os.makedirs(repo.path)
+            os.makedirs(os.path.join(repo.path, 'hooks'))
+            repo.bare = True
+
+        elif repo_type == 'svn':
+            repo.path = os.path.join(tmpdir, 'test_svn_hooks_installation_repo')
+            os.makedirs(repo.path)
+            os.makedirs(os.path.join(repo.path, 'hooks'))
+
+        return repo
+
+    def check_hooks(self, repo_path, repo_bare=True):
+        for file_name in self.HOOK_FILES:
+            if repo_bare:
+                file_path = os.path.join(repo_path, 'hooks', file_name)
+            else:
+                file_path = os.path.join(repo_path, '.git', 'hooks', file_name)
+            self._check_hook_file_mode(file_path)
+            self._check_hook_file_content(file_path, sys.executable)
+
+
+class TestInstallGitHooks(BaseInstallHooks):
+    HOOK_FILES = ('pre-receive', 'post-receive')
+
+    def test_hooks_are_installed(self):
+        repo = self.create_dummy_repo('git')
+        result = hook_utils.install_git_hooks(repo.path, repo.bare)
+        assert result
+        self.check_hooks(repo.path, repo.bare)
+
+    def test_hooks_are_replaced(self):
+        repo = self.create_dummy_repo('git')
+        hooks_path = os.path.join(repo.path, 'hooks')
+        for file_path in [os.path.join(hooks_path, f) for f in self.HOOK_FILES]:
+            self._create_fake_hook(
+                file_path, content="RC_HOOK_VER = 'abcde'\n")
+
+        result = hook_utils.install_git_hooks(repo.path, repo.bare)
+        assert result
+        self.check_hooks(repo.path, repo.bare)
+
+    def test_non_rc_hooks_are_not_replaced(self):
+        repo = self.create_dummy_repo('git')
+        hooks_path = os.path.join(repo.path, 'hooks')
+        non_rc_content = 'echo "non rc hook"\n'
+        for file_path in [os.path.join(hooks_path, f) for f in self.HOOK_FILES]:
+            self._create_fake_hook(
+                file_path, content=non_rc_content)
+
+        result = hook_utils.install_git_hooks(repo.path, repo.bare)
+        assert result
+
+        for file_path in [os.path.join(hooks_path, f) for f in self.HOOK_FILES]:
+            with open(file_path, 'rt') as hook_file:
+                content = hook_file.read()
+            assert content == non_rc_content
+
+    def test_non_rc_hooks_are_replaced_with_force_flag(self):
+        repo = self.create_dummy_repo('git')
+        hooks_path = os.path.join(repo.path, 'hooks')
+        non_rc_content = 'echo "non rc hook"\n'
+        for file_path in [os.path.join(hooks_path, f) for f in self.HOOK_FILES]:
+            self._create_fake_hook(
+                file_path, content=non_rc_content)
+
+        result = hook_utils.install_git_hooks(
+            repo.path, repo.bare, force_create=True)
+        assert result
+        self.check_hooks(repo.path, repo.bare)
+
+
+class TestInstallSvnHooks(BaseInstallHooks):
+    HOOK_FILES = ('pre-commit', 'post-commit')
+
+    def test_hooks_are_installed(self):
+        repo = self.create_dummy_repo('svn')
+        result = hook_utils.install_svn_hooks(repo.path)
+        assert result
+        self.check_hooks(repo.path)
+
+    def test_hooks_are_replaced(self):
+        repo = self.create_dummy_repo('svn')
+        hooks_path = os.path.join(repo.path, 'hooks')
+        for file_path in [os.path.join(hooks_path, f) for f in self.HOOK_FILES]:
+            self._create_fake_hook(
+                file_path, content="RC_HOOK_VER = 'abcde'\n")
+
+        result = hook_utils.install_svn_hooks(repo.path)
+        assert result
+        self.check_hooks(repo.path)
+
+    def test_non_rc_hooks_are_not_replaced(self):
+        repo = self.create_dummy_repo('svn')
+        hooks_path = os.path.join(repo.path, 'hooks')
+        non_rc_content = 'echo "non rc hook"\n'
+        for file_path in [os.path.join(hooks_path, f) for f in self.HOOK_FILES]:
+            self._create_fake_hook(
+                file_path, content=non_rc_content)
+
+        result = hook_utils.install_svn_hooks(repo.path)
+        assert result
+
+        for file_path in [os.path.join(hooks_path, f) for f in self.HOOK_FILES]:
+            with open(file_path, 'rt') as hook_file:
+                content = hook_file.read()
+            assert content == non_rc_content
+
+    def test_non_rc_hooks_are_replaced_with_force_flag(self):
+        repo = self.create_dummy_repo('svn')
+        hooks_path = os.path.join(repo.path, 'hooks')
+        non_rc_content = 'echo "non rc hook"\n'
+        for file_path in [os.path.join(hooks_path, f) for f in self.HOOK_FILES]:
+            self._create_fake_hook(
+                file_path, content=non_rc_content)
+
+        result = hook_utils.install_svn_hooks(
+            repo.path, force_create=True)
+        assert result
+        self.check_hooks(repo.path, )

MANIFEST.in

@@ -8,6 +8,9 b' include vcsserver/VERSION'
 # all config files
 recursive-include configs *
 
+# hook templates
+recursive-include vcsserver/hook_utils/hook_templates *
+
 # skip any tests files
 recursive-exclude vcsserver/tests *
 

configs/development_http.ini

@@ -20,6 +20,10 b' beaker.cache.repo_object.max_items = 100'
 beaker.cache.repo_object.expire = 300
 beaker.cache.repo_object.enabled = true
 
+# path to binaries for vcsserver, it should be set by the installer
+# at installation time, e.g /home/user/vcsserver-1/profile/bin
+core.binary_dir = ""
+
 [server:main]
 ## COMMON ##
 host = 0.0.0.0

configs/production_http.ini

@@ -39,7 +39,7 b' use = egg:rhodecode-vcsserver'
 pyramid.default_locale_name = en
 pyramid.includes =
 
-## default locale used by VCS systems
+# default locale used by VCS systems
 locale = en_US.UTF-8
 
 # cache regions, please don't change
@@ -50,6 +50,10 b' beaker.cache.repo_object.max_items = 100'
 beaker.cache.repo_object.expire = 300
 beaker.cache.repo_object.enabled = true
 
+# path to binaries for vcsserver, it should be set by the installer
+# at installation time, e.g /home/user/vcsserver-1/profile/bin
+core.binary_dir = ""
+
 
 ################################
 ### LOGGING CONFIGURATION   ####

vcsserver/git.py

@@ -655,6 +655,12 b' class GitRemote(object):'
             else:
                 raise exceptions.VcsException(tb_err)
 
+    @reraise_safe_exceptions
+    def install_hooks(self, wire, force=False):
+        from vcsserver.hook_utils import install_git_hooks
+        repo = self._factory.repo(wire)
+        return install_git_hooks(repo.path, repo.bare, force_create=force)
+
 
 def str_to_dulwich(value):
     """

vcsserver/hg.py

@@ -769,3 +769,8 b' class HgRemote(object):'
         repo = self._factory.repo(wire)
         baseui = self._factory._create_config(wire['config'])
         commands.bookmark(baseui, repo, bookmark, rev=revision, force=True)
+
+    @reraise_safe_exceptions
+    def install_hooks(self, wire, force=False):
+        # we don't need any special hooks for Mercurial
+        pass

vcsserver/hooks.py

@@ -20,10 +20,10 b''
 import io
 import os
 import sys
-import json
 import logging
 import collections
 import importlib
+import base64
 
 from httplib import HTTPConnection
 
@@ -46,7 +46,11 b' class HooksHttpClient(object):'
     def __call__(self, method, extras):
         connection = HTTPConnection(self.hooks_uri)
         body = self._serialize(method, extras)
+        try:
         connection.request('POST', '/', body)
+        except Exception:
+            log.error('Connection failed on %s', connection)
+            raise
         response = connection.getresponse()
         return json.loads(response.read())
 
@@ -97,6 +101,17 b' class GitMessageWriter(RemoteMessageWrit'
         self.stdout.write(message.encode('utf-8'))
 
 
+class SvnMessageWriter(RemoteMessageWriter):
+    """Writer that knows how to send messages to svn clients."""
+
+    def __init__(self, stderr=None):
+        # SVN needs data sent to stderr for back-to-client messaging
+        self.stderr = stderr or sys.stderr
+
+    def write(self, message):
+        self.stderr.write(message.encode('utf-8'))
+
+
 def _handle_exception(result):
     exception_class = result.get('exception')
     exception_traceback = result.get('exception_traceback')
@@ -122,8 +137,9 b' def _get_hooks_client(extras):'
 
 
 def _call_hook(hook_name, extras, writer):
-    hooks = _get_hooks_client(extras)
-    result = hooks(hook_name, extras)
+    hooks_client = _get_hooks_client(extras)
+    log.debug('Hooks, using client:%s', hooks_client)
+    result = hooks_client(hook_name, extras)
     log.debug('Hooks got result: %s', result)
     writer.write(result['output'])
     _handle_exception(result)
@@ -465,3 +481,61 b' def git_post_receive(unused_repo_path, r'
             pass
 
     return _call_hook('post_push', extras, GitMessageWriter())
+
+
+def svn_pre_commit(repo_path, commit_data, env):
+    path, txn_id = commit_data
+    branches = []
+    tags = []
+
+    cmd = ['svnlook', 'pget',
+           '-t', txn_id,
+           '--revprop', path, 'rc-scm-extras']
+    stdout, stderr = subprocessio.run_command(
+        cmd, env=os.environ.copy())
+    extras = json.loads(base64.urlsafe_b64decode(stdout))
+
+    extras['commit_ids'] = []
+    extras['txn_id'] = txn_id
+    extras['new_refs'] = {
+        'branches': branches,
+        'bookmarks': [],
+        'tags': tags,
+    }
+    sys.stderr.write(str(extras))
+    return _call_hook('pre_push', extras, SvnMessageWriter())
+
+
+def svn_post_commit(repo_path, commit_data, env):
+    """
+    commit_data is path, rev, txn_id
+    """
+    path, commit_id, txn_id = commit_data
+    branches = []
+    tags = []
+
+    cmd = ['svnlook', 'pget',
+           '-r', commit_id,
+           '--revprop', path, 'rc-scm-extras']
+    stdout, stderr = subprocessio.run_command(
+        cmd, env=os.environ.copy())
+
+    extras = json.loads(base64.urlsafe_b64decode(stdout))
+
+    extras['commit_ids'] = [commit_id]
+    extras['txn_id'] = txn_id
+    extras['new_refs'] = {
+        'branches': branches,
+        'bookmarks': [],
+        'tags': tags,
+    }
+
+    if 'repo_size' in extras['hooks']:
+        try:
+            _call_hook('repo_size', extras, SvnMessageWriter())
+        except:
+            pass
+
+    return _call_hook('post_push', extras, SvnMessageWriter())
+
+

vcsserver/http_main.py

@@ -92,6 +92,10 b' class VCS(object):'
             svn_repo_cache = self.cache.get_cache_region(
                 'svn', region='repo_object')
             svn_factory = SubversionFactory(svn_repo_cache)
+            # hg factory is used for svn url validation
+            hg_repo_cache = self.cache.get_cache_region(
+                'hg', region='repo_object')
+            hg_factory = MercurialFactory(hg_repo_cache)
             self._svn_remote = SvnRemote(svn_factory, hg_factory=hg_factory)
         else:
             log.info("Subversion client import failed")
@@ -190,6 +194,9 b' class HTTPApplication(object):'
         git_path = app_settings.get('git_path', None)
         if git_path:
             settings.GIT_EXECUTABLE = git_path
+        binary_dir = app_settings.get('core.binary_dir', None)
+        if binary_dir:
+            settings.BINARY_DIR = binary_dir
 
     def _configure(self):
         self.config.add_renderer(

vcsserver/settings.py

@@ -17,3 +17,4 b''
 
 WIRE_ENCODING = 'UTF-8'
 GIT_EXECUTABLE = 'git'
+BINARY_DIR = ''

vcsserver/svn.py

@@ -32,7 +32,7 b' import svn.diff'
 import svn.fs
 import svn.repos
 
-from vcsserver import svn_diff, exceptions, subprocessio
+from vcsserver import svn_diff, exceptions, subprocessio, settings
 from vcsserver.base import RepoFactory, raise_from_original
 
 log = logging.getLogger(__name__)
@@ -414,6 +414,17 b' class SvnRemote(object):'
     def is_large_file(self, wire, path):
         return False
 
+    @reraise_safe_exceptions
+    def install_hooks(self, wire, force=False):
+        from vcsserver.hook_utils import install_svn_hooks
+        repo_path = wire['path']
+        binary_dir = settings.BINARY_DIR
+        executable = None
+        if binary_dir:
+            executable = os.path.join(binary_dir, 'python')
+        return install_svn_hooks(
+            repo_path, executable=executable, force_create=force)
+
 
 class SvnDiffer(object):
     """
@@ -576,6 +587,7 b' class SvnDiffer(object):'
         return content.splitlines(True)
 
 
+
 class DiffChangeEditor(svn.delta.Editor):
     """
     Records changes between two given revisions

vcsserver/tests/conftest.py

@@ -55,3 +55,4 b' def get_available_port():'
     mysocket.close()
     del mysocket
     return port
+

vcsserver/tests/fixture.py

@@ -69,3 +69,18 b' class ContextINI(object):'
     def __exit__(self, exc_type, exc_val, exc_tb):
         if self.destroy:
             os.remove(self.new_path)
+
+
+def no_newline_id_generator(test_name):
+    """
+    Generates a test name without spaces or newlines characters. Used for
+    nicer output of progress of test
+    """
+    org_name = test_name
+    test_name = test_name\
+        .replace('\n', '_N') \
+        .replace('\r', '_N') \
+        .replace('\t', '_T') \
+        .replace(' ', '_S')
+
+    return test_name or 'test-with-empty-name'

vcsserver/utils.py

@@ -73,3 +73,10 b" def safe_str(unicode_, to_encoding=['utf"
         return unicode_.encode(encoding)
     except (ImportError, UnicodeEncodeError):
         return unicode_.encode(to_encoding[0], 'replace')
+
+
+class AttributeDict(dict):
+    def __getattr__(self, attr):
+        return self.get(attr, None)
+    __setattr__ = dict.__setitem__
+    __delattr__ = dict.__delitem__