Changeset - 39bdf0ab2862
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Mads Kiilerich - 7 years ago 2018-08-08 02:23:11
mads@kiilerich.com
hooks: use os.environ directly for KALLITHEA_EXTRAS instead of sometimes passing it as parameter

It is better to be consistent ... even if that means always using the global
environment that is hard to avoid.
4 files changed with 10 insertions and 13 deletions:
0 comments (0 inline, 0 general)
kallithea/config/post_receive_tmpl.py
Show inline comments
 
"""Kallithea Git hook
 

	
 
This hook is installed and maintained by Kallithea. It will be overwritten
 
by Kallithea - don't customize it manually!
 

	
 
When Kallithea invokes Git, the KALLITHEA_EXTRAS environment variable will
 
contain additional info like the Kallithea instance and user info that this
 
hook will use.
 
"""
 

	
 
import os
 
import sys
 

	
 
# Set output mode on windows to binary for stderr.
 
# This prevents python (or the windows console) from replacing \n with \r\n.
 
# Git doesn't display remote output lines that contain \r,
 
# and therefore without this modification git would display empty lines
 
# instead of the exception output.
 
if sys.platform == "win32":
 
    import msvcrt
 
    msvcrt.setmode(sys.stderr.fileno(), os.O_BINARY)
 

	
 
KALLITHEA_HOOK_VER = '_TMPL_'
 
os.environ['KALLITHEA_HOOK_VER'] = KALLITHEA_HOOK_VER
 
import kallithea.lib.hooks
 

	
 

	
 
def main():
 
    repo_path = os.path.abspath('.')
 
    git_stdin_lines = sys.stdin.readlines()
 
    sys.exit(kallithea.lib.hooks.handle_git_post_receive(repo_path, git_stdin_lines, os.environ))
 
    sys.exit(kallithea.lib.hooks.handle_git_post_receive(repo_path, git_stdin_lines))
 

	
 

	
 
if __name__ == '__main__':
 
    main()
kallithea/config/pre_receive_tmpl.py
Show inline comments
 
"""Kallithea Git hook
 

	
 
This hook is installed and maintained by Kallithea. It will be overwritten
 
by Kallithea - don't customize it manually!
 

	
 
When Kallithea invokes Git, the KALLITHEA_EXTRAS environment variable will
 
contain additional info like the Kallithea instance and user info that this
 
hook will use.
 
"""
 

	
 
import os
 
import sys
 

	
 
# Set output mode on windows to binary for stderr.
 
# This prevents python (or the windows console) from replacing \n with \r\n.
 
# Git doesn't display remote output lines that contain \r,
 
# and therefore without this modification git would display empty lines
 
# instead of the exception output.
 
if sys.platform == "win32":
 
    import msvcrt
 
    msvcrt.setmode(sys.stderr.fileno(), os.O_BINARY)
 

	
 
KALLITHEA_HOOK_VER = '_TMPL_'
 
os.environ['KALLITHEA_HOOK_VER'] = KALLITHEA_HOOK_VER
 
import kallithea.lib.hooks
 

	
 

	
 
def main():
 
    repo_path = os.path.abspath('.')
 
    git_stdin_lines = sys.stdin.readlines()
 
    sys.exit(kallithea.lib.hooks.handle_git_pre_receive(repo_path, git_stdin_lines, os.environ))
 
    sys.exit(kallithea.lib.hooks.handle_git_pre_receive(repo_path, git_stdin_lines))
 

	
 

	
 
if __name__ == '__main__':
 
    main()
kallithea/lib/hooks.py
Show inline comments
 
# -*- coding: utf-8 -*-
 
# 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, see <http://www.gnu.org/licenses/>.
 
"""
 
kallithea.lib.hooks
 
~~~~~~~~~~~~~~~~~~~
 

	
 
Hooks run by Kallithea
 

	
 
This file was forked by the Kallithea project in July 2014.
 
Original author and date, and relevant copyright and licensing information is below:
 
:created_on: Aug 6, 2010
 
:author: marcink
 
:copyright: (c) 2013 RhodeCode GmbH, and others.
 
:license: GPLv3, see LICENSE.md for more details.
 
"""
 

	
 
import os
 
import time
 
import binascii
 

	
 
from kallithea.lib.vcs.utils.hgcompat import nullrev, revrange
 
from kallithea.lib import helpers as h
 
from kallithea.lib.utils import action_logger
 
from kallithea.lib.vcs.backends.base import EmptyChangeset
 
from kallithea.lib.exceptions import HTTPLockedRC, UserCreationError
 
from kallithea.lib.utils import make_ui, setup_cache_regions
 
from kallithea.lib.utils2 import safe_str, safe_unicode, _extract_extras
 
from kallithea.model.db import Repository, User, Ui
 

	
 

	
 
def _get_scm_size(alias, root_path):
 
    if not alias.startswith('.'):
 
        alias += '.'
 

	
 
    size_scm, size_root = 0, 0
 
    for path, dirs, files in os.walk(safe_str(root_path)):
 
        if path.find(alias) != -1:
 
            for f in files:
 
                try:
 
                    size_scm += os.path.getsize(os.path.join(path, f))
 
                except OSError:
 
                    pass
 
        else:
 
            for f in files:
 
                try:
 
                    size_root += os.path.getsize(os.path.join(path, f))
 
                except OSError:
 
                    pass
 

	
 
    size_scm_f = h.format_byte_size(size_scm)
 
    size_root_f = h.format_byte_size(size_root)
 
    size_total_f = h.format_byte_size(size_root + size_scm)
 

	
 
    return size_scm_f, size_root_f, size_total_f
 

	
 

	
 
def repo_size(ui, repo, hooktype=None, **kwargs):
 
    """Presents size of repository after push"""
 
    size_hg_f, size_root_f, size_total_f = _get_scm_size('.hg', repo.root)
 

	
 
    last_cs = repo[len(repo) - 1]
 

	
 
    msg = ('Repository size .hg: %s Checkout: %s Total: %s\n'
 
           'Last revision is now r%s:%s\n') % (
 
        size_hg_f, size_root_f, size_total_f, last_cs.rev(), last_cs.hex()[:12]
 
    )
 
    ui.status(msg)
 

	
 

	
 
def push_lock_handling(ui, repo, **kwargs):
 
    """Pre push function, currently used to ban pushing when repository is locked.
 

	
 
    Called as Mercurial hook prechangegroup.push_lock_handling or from the Git pre-receive hook calling handle_git_pre_receive.
 
    """
 
    ex = _extract_extras()
 

	
 
    usr = User.get_by_username(ex.username)
 
    if ex.locked_by[0] and usr.user_id != int(ex.locked_by[0]):
 
        locked_by = User.get(ex.locked_by[0]).username
 
        # this exception is interpreted in git/hg middlewares and based
 
        # on that proper return code is server to client
 
        _http_ret = HTTPLockedRC(ex.repository, locked_by)
 
        if str(_http_ret.code).startswith('2'):
 
            # 2xx Codes don't raise exceptions
 
            ui.status(safe_str(_http_ret.title))
 
        else:
 
            raise _http_ret
 

	
 

	
 
def pull_lock_handling(ui, repo, **kwargs):
 
    """Called as Mercurial hook preoutgoing.pull_lock_handling or from Kallithea before invoking Git"""
 
    # pre pull function ...
 
    ex = _extract_extras()
 
    if ex.locked_by[0]:
 
        locked_by = User.get(ex.locked_by[0]).username
 
        # this exception is interpreted in git/hg middlewares and based
 
        # on that proper return code is server to client
 
        _http_ret = HTTPLockedRC(ex.repository, locked_by)
 
        if str(_http_ret.code).startswith('2'):
 
            # 2xx Codes don't raise exceptions
 
            ui.status(safe_str(_http_ret.title))
 
        else:
 
            raise _http_ret
 

	
 

	
 
def log_pull_action(ui, repo, **kwargs):
 
    """Logs user last pull action, and also handle locking
 

	
 
    Called as Mercurial hook outgoing.pull_logger or from Kallithea before invoking Git.
 
    """
 
    ex = _extract_extras()
 

	
 
    user = User.get_by_username(ex.username)
 
    action = 'pull'
 
    action_logger(user, action, ex.repository, ex.ip, commit=True)
 
    # extension hook call
 
    from kallithea import EXTENSIONS
 
    callback = getattr(EXTENSIONS, 'PULL_HOOK', None)
 
    if callable(callback):
 
        kw = {}
 
        kw.update(ex)
 
        callback(**kw)
 

	
 
    if ex.make_lock is not None and ex.make_lock:
 
        Repository.lock(Repository.get_by_repo_name(ex.repository), user.user_id)
 
        #msg = 'Made lock on repo `%s`' % repository
 
        #ui.status(msg)
 

	
 
    if ex.locked_by[0]:
 
        locked_by = User.get(ex.locked_by[0]).username
 
        _http_ret = HTTPLockedRC(ex.repository, locked_by)
 
        if str(_http_ret.code).startswith('2'):
 
            # 2xx Codes don't raise exceptions
 
            ui.status(safe_str(_http_ret.title))
 
    return 0
 

	
 

	
 
def log_push_action(ui, repo, **kwargs):
 
    """
 
    Register that changes have been pushed.
 

	
 
    Called as Mercurial hook changegroup.push_logger or from the Git post-receive hook calling handle_git_post_receive ... or from scm _handle_push
 
    """
 
    ex = _extract_extras()
 

	
 
    action_tmpl = ex.action + ':%s'
 
    revs = []
 
    if ex.scm == 'hg':
 
        node = kwargs['node']
 

	
 
        def get_revs(repo, rev_opt):
 
            if rev_opt:
 
                revs = revrange(repo, rev_opt)
 

	
 
                if len(revs) == 0:
 
                    return (nullrev, nullrev)
 
                return max(revs), min(revs)
 
            else:
 
                return len(repo) - 1, 0
 

	
 
        stop, start = get_revs(repo, [node + ':'])
 
        _h = binascii.hexlify
 
        revs = [_h(repo[r].node()) for r in xrange(start, stop + 1)]
 
    elif ex.scm == 'git':
 
        revs = kwargs.get('_git_revs', [])
 
        if '_git_revs' in kwargs:
 
            kwargs.pop('_git_revs')
 

	
 
    action = action_tmpl % ','.join(revs)
 
    action_logger(ex.username, action, ex.repository, ex.ip, commit=True)
 

	
 
    # extension hook call
 
    from kallithea import EXTENSIONS
 
    callback = getattr(EXTENSIONS, 'PUSH_HOOK', None)
 
    if callable(callback):
 
        kw = {'pushed_revs': revs}
 
        kw.update(ex)
 
        callback(**kw)
 

	
 
    if ex.make_lock is not None and not ex.make_lock:
 
        Repository.unlock(Repository.get_by_repo_name(ex.repository))
 
        ui.status(safe_str('Released lock on repo `%s`\n' % ex.repository))
 

	
 
    if ex.locked_by[0]:
 
        locked_by = User.get(ex.locked_by[0]).username
 
        _http_ret = HTTPLockedRC(ex.repository, locked_by)
 
        if str(_http_ret.code).startswith('2'):
 
            # 2xx Codes don't raise exceptions
 
            ui.status(safe_str(_http_ret.title))
 

	
 
    return 0
 

	
 

	
 
def log_create_repository(repository_dict, created_by, **kwargs):
 
    """
 
    Post create repository Hook.
 

	
 
    :param repository: dict dump of repository object
 
    :param created_by: username who created repository
 

	
 
    available keys of repository_dict:
 

	
 
     'repo_type',
 
     'description',
 
     'private',
 
     'created_on',
 
     'enable_downloads',
 
     'repo_id',
 
     'owner_id',
 
     'enable_statistics',
 
     'clone_uri',
 
     'fork_id',
 
     'group_id',
 
     'repo_name'
 

	
 
    """
 
    from kallithea import EXTENSIONS
 
    callback = getattr(EXTENSIONS, 'CREATE_REPO_HOOK', None)
 
    if callable(callback):
 
        kw = {}
 
        kw.update(repository_dict)
 
        kw.update({'created_by': created_by})
 
        kw.update(kwargs)
 
        return callback(**kw)
 

	
 
    return 0
 

	
 

	
 
def check_allowed_create_user(user_dict, created_by, **kwargs):
 
    # pre create hooks
 
    from kallithea import EXTENSIONS
 
    callback = getattr(EXTENSIONS, 'PRE_CREATE_USER_HOOK', None)
 
    if callable(callback):
 
        allowed, reason = callback(created_by=created_by, **user_dict)
 
        if not allowed:
 
            raise UserCreationError(reason)
 

	
 

	
 
def log_create_user(user_dict, created_by, **kwargs):
 
    """
 
    Post create user Hook.
 

	
 
    :param user_dict: dict dump of user object
 

	
 
    available keys for user_dict:
 

	
 
     'username',
 
     'full_name_or_username',
 
     'full_contact',
 
     'user_id',
 
     'name',
 
     'firstname',
 
     'short_contact',
 
     'admin',
 
     'lastname',
 
     'ip_addresses',
 
     'ldap_dn',
 
     'email',
 
     'api_key',
 
     'last_login',
 
     'full_name',
 
     'active',
 
     'password',
 
     'emails',
 
     'inherit_default_permissions'
 

	
 
    """
 
    from kallithea import EXTENSIONS
 
    callback = getattr(EXTENSIONS, 'CREATE_USER_HOOK', None)
 
    if callable(callback):
 
        return callback(created_by=created_by, **user_dict)
 

	
 
    return 0
 

	
 

	
 
def log_delete_repository(repository_dict, deleted_by, **kwargs):
 
    """
 
    Post delete repository Hook.
 

	
 
    :param repository: dict dump of repository object
 
    :param deleted_by: username who deleted the repository
 

	
 
    available keys of repository_dict:
 

	
 
     'repo_type',
 
     'description',
 
     'private',
 
     'created_on',
 
     'enable_downloads',
 
     'repo_id',
 
     'owner_id',
 
     'enable_statistics',
 
     'clone_uri',
 
     'fork_id',
 
     'group_id',
 
     'repo_name'
 

	
 
    """
 
    from kallithea import EXTENSIONS
 
    callback = getattr(EXTENSIONS, 'DELETE_REPO_HOOK', None)
 
    if callable(callback):
 
        kw = {}
 
        kw.update(repository_dict)
 
        kw.update({'deleted_by': deleted_by,
 
                   'deleted_on': time.time()})
 
        kw.update(kwargs)
 
        return callback(**kw)
 

	
 
    return 0
 

	
 

	
 
def log_delete_user(user_dict, deleted_by, **kwargs):
 
    """
 
    Post delete user Hook.
 

	
 
    :param user_dict: dict dump of user object
 

	
 
    available keys for user_dict:
 

	
 
     'username',
 
     'full_name_or_username',
 
     'full_contact',
 
     'user_id',
 
     'name',
 
     'firstname',
 
     'short_contact',
 
     'admin',
 
     'lastname',
 
     'ip_addresses',
 
     'ldap_dn',
 
     'email',
 
     'api_key',
 
     'last_login',
 
     'full_name',
 
     'active',
 
     'password',
 
     'emails',
 
     'inherit_default_permissions'
 

	
 
    """
 
    from kallithea import EXTENSIONS
 
    callback = getattr(EXTENSIONS, 'DELETE_USER_HOOK', None)
 
    if callable(callback):
 
        return callback(deleted_by=deleted_by, **user_dict)
 

	
 
    return 0
 

	
 

	
 
def _hook_environment(repo_path, env):
 
def _hook_environment(repo_path):
 
    """
 
    Create a light-weight environment for stand-alone scripts and return an UI and the
 
    db repository.
 

	
 
    Git hooks are executed as subprocess of Git while Kallithea is waiting, and
 
    they thus need enough info to be able to create an app environment and
 
    connect to the database.
 
    """
 
    from paste.deploy import appconfig
 
    from sqlalchemy import engine_from_config
 
    from kallithea.config.environment import load_environment
 
    from kallithea.model.base import init_model
 

	
 
    extras = _extract_extras(env)
 
    extras = _extract_extras()
 
    path, ini_name = os.path.split(extras['config'])
 
    conf = appconfig('config:%s' % ini_name, relative_to=path)
 
    conf = load_environment(conf.global_conf, conf.local_conf)
 

	
 
    setup_cache_regions(conf)
 

	
 
    engine = engine_from_config(conf, 'sqlalchemy.')
 
    init_model(engine)
 

	
 
    repo_path = safe_unicode(repo_path)
 
    # fix if it's not a bare repo
 
    if repo_path.endswith(os.sep + '.git'):
 
        repo_path = repo_path[:-5]
 

	
 
    repo = Repository.get_by_full_path(repo_path)
 
    if not repo:
 
        raise OSError('Repository %s not found in database'
 
                      % (safe_str(repo_path)))
 

	
 
    baseui = make_ui('db')
 
    return baseui, repo
 

	
 

	
 
def handle_git_pre_receive(repo_path, git_stdin_lines, env):
 
def handle_git_pre_receive(repo_path, git_stdin_lines):
 
    """Called from Git pre-receive hook"""
 
    baseui, repo = _hook_environment(repo_path, env)
 
    baseui, repo = _hook_environment(repo_path)
 
    scm_repo = repo.scm_instance
 
    push_lock_handling(baseui, scm_repo)
 

	
 

	
 
def handle_git_post_receive(repo_path, git_stdin_lines, env):
 
def handle_git_post_receive(repo_path, git_stdin_lines):
 
    """Called from Git post-receive hook"""
 
    baseui, repo = _hook_environment(repo_path, env)
 
    baseui, repo = _hook_environment(repo_path)
 

	
 
    # the post push hook should never use the cached instance
 
    scm_repo = repo.scm_instance_no_cache()
 

	
 
    _hooks = dict(baseui.configitems('hooks')) or {}
 
    # if push hook is enabled via web interface
 
    if _hooks.get(Ui.HOOK_PUSH_LOG):
 
        rev_data = []
 
        for l in git_stdin_lines:
 
            old_rev, new_rev, ref = l.strip().split(' ')
 
            _ref_data = ref.split('/')
 
            if _ref_data[1] in ['tags', 'heads']:
 
                rev_data.append({'old_rev': old_rev,
 
                                 'new_rev': new_rev,
 
                                 'ref': ref,
 
                                 'type': _ref_data[1],
 
                                 'name': '/'.join(_ref_data[2:])})
 

	
 
        git_revs = []
 
        for push_ref in rev_data:
 
            _type = push_ref['type']
 
            if _type == 'heads':
 
                if push_ref['old_rev'] == EmptyChangeset().raw_id:
 
                    # update the symbolic ref if we push new repo
 
                    if scm_repo.is_empty():
 
                        scm_repo._repo.refs.set_symbolic_ref('HEAD',
 
                                            'refs/heads/%s' % push_ref['name'])
 

	
 
                    cmd = ['for-each-ref', '--format=%(refname)', 'refs/heads/*']
 
                    heads = scm_repo.run_git_command(cmd)[0]
 
                    cmd = ['log', push_ref['new_rev'],
 
                           '--reverse', '--pretty=format:%H', '--not']
 
                    heads = heads.replace(push_ref['ref'], '')
 
                    for l in heads.splitlines():
 
                        cmd.append(l.strip())
 
                    git_revs += scm_repo.run_git_command(cmd)[0].splitlines()
 

	
 
                elif push_ref['new_rev'] == EmptyChangeset().raw_id:
 
                    # delete branch case
 
                    git_revs += ['delete_branch=>%s' % push_ref['name']]
 
                else:
 
                    cmd = ['log', '%(old_rev)s..%(new_rev)s' % push_ref,
 
                           '--reverse', '--pretty=format:%H']
 
                    git_revs += scm_repo.run_git_command(cmd)[0].splitlines()
 

	
 
            elif _type == 'tags':
 
                git_revs += ['tag=>%s' % push_ref['name']]
 

	
 
        log_push_action(baseui, scm_repo, _git_revs=git_revs)
kallithea/lib/utils2.py
Show inline comments
 
# -*- coding: utf-8 -*-
 
# 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, see <http://www.gnu.org/licenses/>.
 
"""
 
kallithea.lib.utils2
 
~~~~~~~~~~~~~~~~~~~~
 

	
 
Some simple helper functions.
 
Note: all these functions should be independent of Kallithea classes, i.e.
 
models, controllers, etc.  to prevent import cycles.
 

	
 
This file was forked by the Kallithea project in July 2014.
 
Original author and date, and relevant copyright and licensing information is below:
 
:created_on: Jan 5, 2011
 
:author: marcink
 
:copyright: (c) 2013 RhodeCode GmbH, and others.
 
:license: GPLv3, see LICENSE.md for more details.
 
"""
 

	
 

	
 
import os
 
import re
 
import sys
 
import time
 
import uuid
 
import datetime
 
import urllib
 
import binascii
 

	
 
import webob
 
import urlobject
 
from webhelpers.text import collapse, remove_formatting, strip_tags
 

	
 
from tg.i18n import ugettext as _, ungettext
 
from kallithea.lib.vcs.utils.lazy import LazyProperty
 
from kallithea.lib.compat import json
 

	
 

	
 
def str2bool(_str):
 
    """
 
    returns True/False value from given string, it tries to translate the
 
    string into boolean
 

	
 
    :param _str: string value to translate into boolean
 
    :rtype: boolean
 
    :returns: boolean from given string
 
    """
 
    if _str is None:
 
        return False
 
    if _str in (True, False):
 
        return _str
 
    _str = str(_str).strip().lower()
 
    return _str in ('t', 'true', 'y', 'yes', 'on', '1')
 

	
 

	
 
def aslist(obj, sep=None, strip=True):
 
    """
 
    Returns given string separated by sep as list
 

	
 
    :param obj:
 
    :param sep:
 
    :param strip:
 
    """
 
    if isinstance(obj, (basestring)):
 
        lst = obj.split(sep)
 
        if strip:
 
            lst = [v.strip() for v in lst]
 
        return lst
 
    elif isinstance(obj, (list, tuple)):
 
        return obj
 
    elif obj is None:
 
        return []
 
    else:
 
        return [obj]
 

	
 

	
 
def convert_line_endings(line, mode):
 
    """
 
    Converts a given line  "line end" according to given mode
 

	
 
    Available modes are::
 
        0 - Unix
 
        1 - Mac
 
        2 - DOS
 

	
 
    :param line: given line to convert
 
    :param mode: mode to convert to
 
    :rtype: str
 
    :return: converted line according to mode
 
    """
 
    from string import replace
 

	
 
    if mode == 0:
 
            line = replace(line, '\r\n', '\n')
 
            line = replace(line, '\r', '\n')
 
    elif mode == 1:
 
            line = replace(line, '\r\n', '\r')
 
            line = replace(line, '\n', '\r')
 
    elif mode == 2:
 
            line = re.sub("\r(?!\n)|(?<!\r)\n", "\r\n", line)
 
    return line
 

	
 

	
 
def detect_mode(line, default):
 
    """
 
    Detects line break for given line, if line break couldn't be found
 
    given default value is returned
 

	
 
    :param line: str line
 
    :param default: default
 
    :rtype: int
 
    :return: value of line end on of 0 - Unix, 1 - Mac, 2 - DOS
 
    """
 
    if line.endswith('\r\n'):
 
        return 2
 
    elif line.endswith('\n'):
 
        return 0
 
    elif line.endswith('\r'):
 
        return 1
 
    else:
 
        return default
 

	
 

	
 
def generate_api_key():
 
    """
 
    Generates a random (presumably unique) API key.
 

	
 
    This value is used in URLs and "Bearer" HTTP Authorization headers,
 
    which in practice means it should only contain URL-safe characters
 
    (RFC 3986):
 

	
 
        unreserved = ALPHA / DIGIT / "-" / "." / "_" / "~"
 
    """
 
    # Hexadecimal certainly qualifies as URL-safe.
 
    return binascii.hexlify(os.urandom(20))
 

	
 

	
 
def safe_int(val, default=None):
 
    """
 
    Returns int() of val if val is not convertable to int use default
 
    instead
 

	
 
    :param val:
 
    :param default:
 
    """
 

	
 
    try:
 
        val = int(val)
 
    except (ValueError, TypeError):
 
        val = default
 

	
 
    return val
 

	
 

	
 
def safe_unicode(str_, from_encoding=None):
 
    """
 
    safe unicode function. Does few trick to turn str_ into unicode
 

	
 
    In case of UnicodeDecode error we try to return it with encoding detected
 
    by chardet library if it fails fallback to unicode with errors replaced
 

	
 
    :param str_: string to decode
 
    :rtype: unicode
 
    :returns: unicode object
 
    """
 
    if isinstance(str_, unicode):
 
        return str_
 

	
 
    if not from_encoding:
 
        import kallithea
 
        DEFAULT_ENCODINGS = aslist(kallithea.CONFIG.get('default_encoding',
 
                                                        'utf-8'), sep=',')
 
        from_encoding = DEFAULT_ENCODINGS
 

	
 
    if not isinstance(from_encoding, (list, tuple)):
 
        from_encoding = [from_encoding]
 

	
 
    try:
 
        return unicode(str_)
 
    except UnicodeDecodeError:
 
        pass
 

	
 
    for enc in from_encoding:
 
        try:
 
            return unicode(str_, enc)
 
        except UnicodeDecodeError:
 
            pass
 

	
 
    try:
 
        import chardet
 
        encoding = chardet.detect(str_)['encoding']
 
        if encoding is None:
 
            raise Exception()
 
        return str_.decode(encoding)
 
    except (ImportError, UnicodeDecodeError, Exception):
 
        return unicode(str_, from_encoding[0], 'replace')
 

	
 

	
 
def safe_str(unicode_, to_encoding=None):
 
    """
 
    safe str function. Does few trick to turn unicode_ into string
 

	
 
    In case of UnicodeEncodeError we try to return it with encoding detected
 
    by chardet library if it fails fallback to string with errors replaced
 

	
 
    :param unicode_: unicode to encode
 
    :rtype: str
 
    :returns: str object
 
    """
 

	
 
    # if it's not basestr cast to str
 
    if not isinstance(unicode_, basestring):
 
        return str(unicode_)
 

	
 
    if isinstance(unicode_, str):
 
        return unicode_
 

	
 
    if not to_encoding:
 
        import kallithea
 
        DEFAULT_ENCODINGS = aslist(kallithea.CONFIG.get('default_encoding',
 
                                                        'utf-8'), sep=',')
 
        to_encoding = DEFAULT_ENCODINGS
 

	
 
    if not isinstance(to_encoding, (list, tuple)):
 
        to_encoding = [to_encoding]
 

	
 
    for enc in to_encoding:
 
        try:
 
            return unicode_.encode(enc)
 
        except UnicodeEncodeError:
 
            pass
 

	
 
    try:
 
        import chardet
 
        encoding = chardet.detect(unicode_)['encoding']
 
        if encoding is None:
 
            raise UnicodeEncodeError()
 

	
 
        return unicode_.encode(encoding)
 
    except (ImportError, UnicodeEncodeError):
 
        return unicode_.encode(to_encoding[0], 'replace')
 

	
 

	
 
def remove_suffix(s, suffix):
 
    if s.endswith(suffix):
 
        s = s[:-1 * len(suffix)]
 
    return s
 

	
 

	
 
def remove_prefix(s, prefix):
 
    if s.startswith(prefix):
 
        s = s[len(prefix):]
 
    return s
 

	
 

	
 
def age(prevdate, show_short_version=False, now=None):
 
    """
 
    turns a datetime into an age string.
 
    If show_short_version is True, then it will generate a not so accurate but shorter string,
 
    example: 2days ago, instead of 2 days and 23 hours ago.
 

	
 
    :param prevdate: datetime object
 
    :param show_short_version: if it should approximate the date and return a shorter string
 
    :rtype: unicode
 
    :returns: unicode words describing age
 
    """
 
    now = now or datetime.datetime.now()
 
    order = ['year', 'month', 'day', 'hour', 'minute', 'second']
 
    deltas = {}
 
    future = False
 

	
 
    if prevdate > now:
 
        now, prevdate = prevdate, now
 
        future = True
 
    if future:
 
        prevdate = prevdate.replace(microsecond=0)
 
    # Get date parts deltas
 
    from dateutil import relativedelta
 
    for part in order:
 
        d = relativedelta.relativedelta(now, prevdate)
 
        deltas[part] = getattr(d, part + 's')
 

	
 
    # Fix negative offsets (there is 1 second between 10:59:59 and 11:00:00,
 
    # not 1 hour, -59 minutes and -59 seconds)
 
    for num, length in [(5, 60), (4, 60), (3, 24)]:  # seconds, minutes, hours
 
        part = order[num]
 
        carry_part = order[num - 1]
 

	
 
        if deltas[part] < 0:
 
            deltas[part] += length
 
            deltas[carry_part] -= 1
 

	
 
    # Same thing for days except that the increment depends on the (variable)
 
    # number of days in the month
 
    month_lengths = [31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31]
 
    if deltas['day'] < 0:
 
        if prevdate.month == 2 and (prevdate.year % 4 == 0 and
 
            (prevdate.year % 100 != 0 or prevdate.year % 400 == 0)):
 
            deltas['day'] += 29
 
        else:
 
            deltas['day'] += month_lengths[prevdate.month - 1]
 

	
 
        deltas['month'] -= 1
 

	
 
    if deltas['month'] < 0:
 
        deltas['month'] += 12
 
        deltas['year'] -= 1
 

	
 
    # In short version, we want nicer handling of ages of more than a year
 
    if show_short_version:
 
        if deltas['year'] == 1:
 
            # ages between 1 and 2 years: show as months
 
            deltas['month'] += 12
 
            deltas['year'] = 0
 
        if deltas['year'] >= 2:
 
            # ages 2+ years: round
 
            if deltas['month'] > 6:
 
                deltas['year'] += 1
 
                deltas['month'] = 0
 

	
 
    # Format the result
 
    fmt_funcs = {
 
        'year': lambda d: ungettext(u'%d year', '%d years', d) % d,
 
        'month': lambda d: ungettext(u'%d month', '%d months', d) % d,
 
        'day': lambda d: ungettext(u'%d day', '%d days', d) % d,
 
        'hour': lambda d: ungettext(u'%d hour', '%d hours', d) % d,
 
        'minute': lambda d: ungettext(u'%d minute', '%d minutes', d) % d,
 
        'second': lambda d: ungettext(u'%d second', '%d seconds', d) % d,
 
    }
 

	
 
    for i, part in enumerate(order):
 
        value = deltas[part]
 
        if value == 0:
 
            continue
 

	
 
        if i < 5:
 
            sub_part = order[i + 1]
 
            sub_value = deltas[sub_part]
 
        else:
 
            sub_value = 0
 

	
 
        if sub_value == 0 or show_short_version:
 
            if future:
 
                return _('in %s') % fmt_funcs[part](value)
 
            else:
 
                return _('%s ago') % fmt_funcs[part](value)
 
        if future:
 
            return _('in %s and %s') % (fmt_funcs[part](value),
 
                fmt_funcs[sub_part](sub_value))
 
        else:
 
            return _('%s and %s ago') % (fmt_funcs[part](value),
 
                fmt_funcs[sub_part](sub_value))
 

	
 
    return _('just now')
 

	
 

	
 
def uri_filter(uri):
 
    """
 
    Removes user:password from given url string
 

	
 
    :param uri:
 
    :rtype: unicode
 
    :returns: filtered list of strings
 
    """
 
    if not uri:
 
        return ''
 

	
 
    proto = ''
 

	
 
    for pat in ('https://', 'http://', 'git://'):
 
        if uri.startswith(pat):
 
            uri = uri[len(pat):]
 
            proto = pat
 
            break
 

	
 
    # remove passwords and username
 
    uri = uri[uri.find('@') + 1:]
 

	
 
    # get the port
 
    cred_pos = uri.find(':')
 
    if cred_pos == -1:
 
        host, port = uri, None
 
    else:
 
        host, port = uri[:cred_pos], uri[cred_pos + 1:]
 

	
 
    return filter(None, [proto, host, port])
 

	
 

	
 
def credentials_filter(uri):
 
    """
 
    Returns a url with removed credentials
 

	
 
    :param uri:
 
    """
 

	
 
    uri = uri_filter(uri)
 
    # check if we have port
 
    if len(uri) > 2 and uri[2]:
 
        uri[2] = ':' + uri[2]
 

	
 
    return ''.join(uri)
 

	
 

	
 
def get_clone_url(uri_tmpl, qualified_home_url, repo_name, repo_id, **override):
 
    parsed_url = urlobject.URLObject(qualified_home_url)
 
    decoded_path = safe_unicode(urllib.unquote(parsed_url.path.rstrip('/')))
 
    args = {
 
        'scheme': parsed_url.scheme,
 
        'user': '',
 
        'netloc': parsed_url.netloc+decoded_path,  # path if we use proxy-prefix
 
        'prefix': decoded_path,
 
        'repo': repo_name,
 
        'repoid': str(repo_id)
 
    }
 
    args.update(override)
 
    args['user'] = urllib.quote(safe_str(args['user']))
 

	
 
    for k, v in args.items():
 
        uri_tmpl = uri_tmpl.replace('{%s}' % k, v)
 

	
 
    # remove leading @ sign if it's present. Case of empty user
 
    url_obj = urlobject.URLObject(uri_tmpl)
 
    url = url_obj.with_netloc(url_obj.netloc.lstrip('@'))
 

	
 
    return safe_unicode(url)
 

	
 

	
 
def get_changeset_safe(repo, rev):
 
    """
 
    Safe version of get_changeset if this changeset doesn't exists for a
 
    repo it returns a Dummy one instead
 

	
 
    :param repo:
 
    :param rev:
 
    """
 
    from kallithea.lib.vcs.backends.base import BaseRepository
 
    from kallithea.lib.vcs.exceptions import RepositoryError
 
    from kallithea.lib.vcs.backends.base import EmptyChangeset
 
    if not isinstance(repo, BaseRepository):
 
        raise Exception('You must pass an Repository '
 
                        'object as first argument got %s', type(repo))
 

	
 
    try:
 
        cs = repo.get_changeset(rev)
 
    except (RepositoryError, LookupError):
 
        cs = EmptyChangeset(requested_revision=rev)
 
    return cs
 

	
 

	
 
def datetime_to_time(dt):
 
    if dt:
 
        return time.mktime(dt.timetuple())
 

	
 

	
 
def time_to_datetime(tm):
 
    if tm:
 
        if isinstance(tm, basestring):
 
            try:
 
                tm = float(tm)
 
            except ValueError:
 
                return
 
        return datetime.datetime.fromtimestamp(tm)
 

	
 

	
 
# Must match regexp in kallithea/public/js/base.js MentionsAutoComplete()
 
# Check char before @ - it must not look like we are in an email addresses.
 
# Matching is greedy so we don't have to look beyond the end.
 
MENTIONS_REGEX = re.compile(r'(?:^|(?<=[^a-zA-Z0-9]))@([a-zA-Z0-9][-_.a-zA-Z0-9]*[a-zA-Z0-9])')
 

	
 

	
 
def extract_mentioned_usernames(text):
 
    r"""
 
    Returns list of (possible) usernames @mentioned in given text.
 

	
 
    >>> extract_mentioned_usernames('@1-2.a_X,@1234 not@not @ddd@not @n @ee @ff @gg, @gg;@hh @n\n@zz,')
 
    ['1-2.a_X', '1234', 'ddd', 'ee', 'ff', 'gg', 'hh', 'zz']
 
    """
 
    return MENTIONS_REGEX.findall(text)
 

	
 

	
 
def extract_mentioned_users(text):
 
    """ Returns set of actual database Users @mentioned in given text. """
 
    from kallithea.model.db import User
 
    result = set()
 
    for name in extract_mentioned_usernames(text):
 
        user = User.get_by_username(name, case_insensitive=True)
 
        if user is not None and not user.is_default_user:
 
            result.add(user)
 
    return result
 

	
 

	
 
class AttributeDict(dict):
 
    def __getattr__(self, attr):
 
        return self.get(attr, None)
 
    __setattr__ = dict.__setitem__
 
    __delattr__ = dict.__delitem__
 

	
 

	
 
def fix_PATH(os_=None):
 
    """
 
    Get current active python path, and append it to PATH variable to fix issues
 
    of subprocess calls and different python versions
 
    """
 
    if os_ is None:
 
        import os
 
    else:
 
        os = os_
 

	
 
    cur_path = os.path.split(sys.executable)[0]
 
    if not os.environ['PATH'].startswith(cur_path):
 
        os.environ['PATH'] = '%s:%s' % (cur_path, os.environ['PATH'])
 

	
 

	
 
def obfuscate_url_pw(engine):
 
    from sqlalchemy.engine import url as sa_url
 
    from sqlalchemy.exc import ArgumentError
 
    try:
 
        _url = sa_url.make_url(engine or '')
 
    except ArgumentError:
 
        return engine
 
    if _url.password:
 
        _url.password = 'XXXXX'
 
    return str(_url)
 

	
 

	
 
def get_server_url(environ):
 
    req = webob.Request(environ)
 
    return req.host_url + req.script_name
 

	
 

	
 
def _extract_extras(env=None):
 
def _extract_extras():
 
    """
 
    Extracts the Kallithea extras data from os.environ, and wraps it into named
 
    AttributeDict object
 
    """
 
    if not env:
 
        env = os.environ
 

	
 
    try:
 
        extras = json.loads(env['KALLITHEA_EXTRAS'])
 
        extras = json.loads(os.environ['KALLITHEA_EXTRAS'])
 
    except KeyError:
 
        raise Exception("Environment variable KALLITHEA_EXTRAS not found")
 

	
 
    try:
 
        for k in ['username', 'repository', 'locked_by', 'scm', 'make_lock',
 
                  'action', 'ip']:
 
            extras[k]
 
    except KeyError:
 
        raise Exception('Missing key %s in KALLITHEA_EXTRAS %s' % (k, extras))
 

	
 
    return AttributeDict(extras)
 

	
 

	
 
def _set_extras(extras):
 
    os.environ['KALLITHEA_EXTRAS'] = json.dumps(extras)
 

	
 

	
 
def get_current_authuser():
 
    """
 
    Gets kallithea user from threadlocal tmpl_context variable if it's
 
    defined, else returns None.
 
    """
 
    from tg import tmpl_context
 
    if hasattr(tmpl_context, 'authuser'):
 
        return tmpl_context.authuser
 

	
 
    return None
 

	
 

	
 
class OptionalAttr(object):
 
    """
 
    Special Optional Option that defines other attribute. Example::
 

	
 
        def test(apiuser, userid=Optional(OAttr('apiuser')):
 
            user = Optional.extract(userid)
 
            # calls
 

	
 
    """
 

	
 
    def __init__(self, attr_name):
 
        self.attr_name = attr_name
 

	
 
    def __repr__(self):
 
        return '<OptionalAttr:%s>' % self.attr_name
 

	
 
    def __call__(self):
 
        return self
 

	
 

	
 
# alias
 
OAttr = OptionalAttr
 

	
 

	
 
class Optional(object):
 
    """
 
    Defines an optional parameter::
 

	
 
        param = param.getval() if isinstance(param, Optional) else param
 
        param = param() if isinstance(param, Optional) else param
 

	
 
    is equivalent of::
 

	
 
        param = Optional.extract(param)
 

	
 
    """
 

	
 
    def __init__(self, type_):
 
        self.type_ = type_
 

	
 
    def __repr__(self):
 
        return '<Optional:%s>' % self.type_.__repr__()
 

	
 
    def __call__(self):
 
        return self.getval()
 

	
 
    def getval(self):
 
        """
 
        returns value from this Optional instance
 
        """
 
        if isinstance(self.type_, OAttr):
 
            # use params name
 
            return self.type_.attr_name
 
        return self.type_
 

	
 
    @classmethod
 
    def extract(cls, val):
 
        """
 
        Extracts value from Optional() instance
 

	
 
        :param val:
 
        :return: original value if it's not Optional instance else
 
            value of instance
 
        """
 
        if isinstance(val, cls):
 
            return val.getval()
 
        return val
 

	
 

	
 
def urlreadable(s, _cleanstringsub=re.compile('[^-a-zA-Z0-9./]+').sub):
 
    return _cleanstringsub('_', safe_str(s)).rstrip('_')
 

	
 

	
 
def recursive_replace(str_, replace=' '):
 
    """
 
    Recursive replace of given sign to just one instance
 

	
 
    :param str_: given string
 
    :param replace: char to find and replace multiple instances
 

	
 
    Examples::
 
    >>> recursive_replace("Mighty---Mighty-Bo--sstones",'-')
 
    'Mighty-Mighty-Bo-sstones'
 
    """
 

	
 
    if str_.find(replace * 2) == -1:
 
        return str_
 
    else:
 
        str_ = str_.replace(replace * 2, replace)
 
        return recursive_replace(str_, replace)
 

	
 

	
 
def repo_name_slug(value):
 
    """
 
    Return slug of name of repository
 
    This function is called on each creation/modification
 
    of repository to prevent bad names in repo
 
    """
 

	
 
    slug = remove_formatting(value)
 
    slug = strip_tags(slug)
 

	
 
    for c in """`?=[]\;'"<>,/~!@#$%^&*()+{}|: """:
 
        slug = slug.replace(c, '-')
 
    slug = recursive_replace(slug, '-')
 
    slug = collapse(slug, '-')
 
    return slug
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