Source code for kallithea.model.scm

# -*- 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.model.scm
~~~~~~~~~~~~~~~~~~~

Scm model for 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: Apr 9, 2010
:author: marcink
:copyright: (c) 2013 RhodeCode GmbH, and others.
:license: GPLv3, see LICENSE.md for more details.
"""

import os
import sys
import posixpath
import re
import time
import traceback
import logging
import cStringIO
import pkg_resources

from sqlalchemy import func
from tg.i18n import ugettext as _

import kallithea
from kallithea.lib.vcs import get_backend
from kallithea.lib.vcs.exceptions import RepositoryError
from kallithea.lib.vcs.utils.lazy import LazyProperty
from kallithea.lib.vcs.nodes import FileNode
from kallithea.lib.vcs.backends.base import EmptyChangeset

from kallithea import BACKENDS
from kallithea.lib import helpers as h
from kallithea.lib.utils2 import safe_str, safe_unicode, get_server_url, \
    _set_extras
from kallithea.lib.auth import HasRepoPermissionLevel, HasRepoGroupPermissionLevel, \
    HasUserGroupPermissionLevel, HasPermissionAny, HasPermissionAny
from kallithea.lib.utils import get_filesystem_repos, make_ui, \
    action_logger
from kallithea.model.db import Repository, Session, Ui, CacheInvalidation, \
    UserFollowing, UserLog, User, RepoGroup, PullRequest
from kallithea.lib.hooks import log_push_action
from kallithea.lib.exceptions import NonRelativePathError, IMCCommitError

log = logging.getLogger(__name__)


class UserTemp(object):
    def __init__(self, user_id):
        self.user_id = user_id

    def __repr__(self):
        return "<%s('id:%s')>" % (self.__class__.__name__, self.user_id)


class RepoTemp(object):
    def __init__(self, repo_id):
        self.repo_id = repo_id

    def __repr__(self):
        return "<%s('id:%s')>" % (self.__class__.__name__, self.repo_id)


class _PermCheckIterator(object):
    def __init__(self, obj_list, obj_attr, perm_set, perm_checker, extra_kwargs=None):
        """
        Creates iterator from given list of objects, additionally
        checking permission for them from perm_set var

        :param obj_list: list of db objects
        :param obj_attr: attribute of object to pass into perm_checker
        :param perm_set: list of permissions to check
        :param perm_checker: callable to check permissions against
        """
        self.obj_list = obj_list
        self.obj_attr = obj_attr
        self.perm_set = perm_set
        self.perm_checker = perm_checker
        self.extra_kwargs = extra_kwargs or {}

    def __len__(self):
        return len(self.obj_list)

    def __repr__(self):
        return '<%s (%s)>' % (self.__class__.__name__, self.__len__())

    def __iter__(self):
        for db_obj in self.obj_list:
            # check permission at this level
            name = getattr(db_obj, self.obj_attr, None)
            if not self.perm_checker(*self.perm_set)(
                    name, self.__class__.__name__, **self.extra_kwargs):
                continue

            yield db_obj


class RepoList(_PermCheckIterator):

    def __init__(self, db_repo_list, perm_level, extra_kwargs=None):
        super(RepoList, self).__init__(obj_list=db_repo_list,
                    obj_attr='repo_name', perm_set=[perm_level],
                    perm_checker=HasRepoPermissionLevel,
                    extra_kwargs=extra_kwargs)


class RepoGroupList(_PermCheckIterator):

    def __init__(self, db_repo_group_list, perm_level, extra_kwargs=None):
        super(RepoGroupList, self).__init__(obj_list=db_repo_group_list,
                    obj_attr='group_name', perm_set=[perm_level],
                    perm_checker=HasRepoGroupPermissionLevel,
                    extra_kwargs=extra_kwargs)


class UserGroupList(_PermCheckIterator):

    def __init__(self, db_user_group_list, perm_level, extra_kwargs=None):
        super(UserGroupList, self).__init__(obj_list=db_user_group_list,
                    obj_attr='users_group_name', perm_set=[perm_level],
                    perm_checker=HasUserGroupPermissionLevel,
                    extra_kwargs=extra_kwargs)


[docs]class ScmModel(object): """ Generic Scm Model """ def __get_repo(self, instance): cls = Repository if isinstance(instance, cls): return instance elif isinstance(instance, int) or safe_str(instance).isdigit(): return cls.get(instance) elif isinstance(instance, basestring): return cls.get_by_repo_name(instance) elif instance is not None: raise Exception('given object must be int, basestr or Instance' ' of %s got %s' % (type(cls), type(instance)))
[docs] @LazyProperty def repos_path(self): """ Gets the repositories root path from database """ q = Ui.query().filter(Ui.ui_key == '/').one() return q.ui_value
[docs] def repo_scan(self, repos_path=None): """ Listing of repositories in given path. This path should not be a repository itself. Return a dictionary of repository objects :param repos_path: path to directory containing repositories """ if repos_path is None: repos_path = self.repos_path log.info('scanning for repositories in %s', repos_path) baseui = make_ui('db') repos = {} for name, path in get_filesystem_repos(repos_path): # name need to be decomposed and put back together using the / # since this is internal storage separator for kallithea name = Repository.normalize_repo_name(name) try: if name in repos: raise RepositoryError('Duplicate repository name %s ' 'found in %s' % (name, path)) else: klass = get_backend(path[0]) if path[0] == 'hg' and path[0] in BACKENDS.keys(): repos[name] = klass(safe_str(path[1]), baseui=baseui) if path[0] == 'git' and path[0] in BACKENDS.keys(): repos[name] = klass(path[1]) except OSError: continue log.debug('found %s paths with repositories', len(repos)) return repos
[docs] def get_repos(self, repos): """Return the repos the user has access to""" return RepoList(repos, perm_level='read')
[docs] def get_repo_groups(self, groups=None): """Return the repo groups the user has access to If no groups are specified, use top level groups. """ if groups is None: groups = RepoGroup.query() \ .filter(RepoGroup.parent_group_id == None).all() return RepoGroupList(groups, perm_level='read')
[docs] def mark_for_invalidation(self, repo_name): """ Mark caches of this repo invalid in the database. :param repo_name: the repo for which caches should be marked invalid """ CacheInvalidation.set_invalidate(repo_name) repo = Repository.get_by_repo_name(repo_name) if repo is not None: repo.update_changeset_cache()
def toggle_following_repo(self, follow_repo_id, user_id): f = UserFollowing.query() \ .filter(UserFollowing.follows_repository_id == follow_repo_id) \ .filter(UserFollowing.user_id == user_id).scalar() if f is not None: try: Session().delete(f) action_logger(UserTemp(user_id), 'stopped_following_repo', RepoTemp(follow_repo_id)) return except Exception: log.error(traceback.format_exc()) raise try: f = UserFollowing() f.user_id = user_id f.follows_repository_id = follow_repo_id Session().add(f) action_logger(UserTemp(user_id), 'started_following_repo', RepoTemp(follow_repo_id)) except Exception: log.error(traceback.format_exc()) raise def toggle_following_user(self, follow_user_id, user_id): f = UserFollowing.query() \ .filter(UserFollowing.follows_user_id == follow_user_id) \ .filter(UserFollowing.user_id == user_id).scalar() if f is not None: try: Session().delete(f) return except Exception: log.error(traceback.format_exc()) raise try: f = UserFollowing() f.user_id = user_id f.follows_user_id = follow_user_id Session().add(f) except Exception: log.error(traceback.format_exc()) raise def is_following_repo(self, repo_name, user_id, cache=False): r = Repository.query() \ .filter(Repository.repo_name == repo_name).scalar() f = UserFollowing.query() \ .filter(UserFollowing.follows_repository == r) \ .filter(UserFollowing.user_id == user_id).scalar() return f is not None def is_following_user(self, username, user_id, cache=False): u = User.get_by_username(username) f = UserFollowing.query() \ .filter(UserFollowing.follows_user == u) \ .filter(UserFollowing.user_id == user_id).scalar() return f is not None def get_followers(self, repo): repo = Repository.guess_instance(repo) return UserFollowing.query() \ .filter(UserFollowing.follows_repository == repo).count() def get_forks(self, repo): repo = Repository.guess_instance(repo) return Repository.query() \ .filter(Repository.fork == repo).count() def get_pull_requests(self, repo): repo = Repository.guess_instance(repo) return PullRequest.query() \ .filter(PullRequest.other_repo == repo) \ .filter(PullRequest.status != PullRequest.STATUS_CLOSED).count() def mark_as_fork(self, repo, fork, user): repo = self.__get_repo(repo) fork = self.__get_repo(fork) if fork and repo.repo_id == fork.repo_id: raise Exception("Cannot set repository as fork of itself") if fork and repo.repo_type != fork.repo_type: raise RepositoryError("Cannot set repository as fork of repository with other type") repo.fork = fork return repo def _handle_rc_scm_extras(self, username, repo_name, repo_alias, action=None): from kallithea import CONFIG from kallithea.lib.base import _get_ip_addr try: from tg import request environ = request.environ except TypeError: # we might use this outside of request context, let's fake the # environ data from webob import Request environ = Request.blank('').environ extras = { 'ip': _get_ip_addr(environ), 'username': username, 'action': action or 'push_local', 'repository': repo_name, 'scm': repo_alias, 'config': CONFIG['__file__'], 'server_url': get_server_url(environ), 'make_lock': None, 'locked_by': [None, None] } _set_extras(extras) def _handle_push(self, repo, username, action, repo_name, revisions): """ Triggers push action hooks :param repo: SCM repo :param username: username who pushes :param action: push/push_local/push_remote :param repo_name: name of repo :param revisions: list of revisions that we pushed """ self._handle_rc_scm_extras(username, repo_name, repo_alias=repo.alias, action=action) _scm_repo = repo._repo # trigger push hook if repo.alias == 'hg': log_push_action(_scm_repo.ui, _scm_repo, node=revisions[0]) elif repo.alias == 'git': log_push_action(None, _scm_repo, _git_revs=revisions) def _get_IMC_module(self, scm_type): """ Returns InMemoryCommit class based on scm_type :param scm_type: """ if scm_type == 'hg': from kallithea.lib.vcs.backends.hg import MercurialInMemoryChangeset return MercurialInMemoryChangeset if scm_type == 'git': from kallithea.lib.vcs.backends.git import GitInMemoryChangeset return GitInMemoryChangeset raise Exception('Invalid scm_type, must be one of hg,git got %s' % (scm_type,))
[docs] def pull_changes(self, repo, username, clone_uri=None): """ Pull from "clone URL" or fork origin. """ dbrepo = self.__get_repo(repo) if clone_uri is None: clone_uri = dbrepo.clone_uri or dbrepo.fork and dbrepo.fork.repo_full_path if not clone_uri: raise Exception("This repository doesn't have a clone uri") repo = dbrepo.scm_instance repo_name = dbrepo.repo_name try: if repo.alias == 'git': repo.fetch(clone_uri) # git doesn't really have something like post-fetch action # we fake that now. #TODO: extract fetched revisions somehow # here self._handle_push(repo, username=username, action='push_remote', repo_name=repo_name, revisions=[]) else: self._handle_rc_scm_extras(username, dbrepo.repo_name, repo.alias, action='push_remote') repo.pull(clone_uri) self.mark_for_invalidation(repo_name) except Exception: log.error(traceback.format_exc()) raise
[docs] def commit_change(self, repo, repo_name, cs, user, author, message, content, f_path): """ Commit a change to a single file :param repo: a db_repo.scm_instance """ user = User.guess_instance(user) IMC = self._get_IMC_module(repo.alias) # decoding here will force that we have proper encoded values # in any other case this will throw exceptions and deny commit content = safe_str(content) path = safe_str(f_path) # message and author needs to be unicode # proper backend should then translate that into required type message = safe_unicode(message) author = safe_unicode(author) imc = IMC(repo) imc.change(FileNode(path, content, mode=cs.get_file_mode(f_path))) try: tip = imc.commit(message=message, author=author, parents=[cs], branch=cs.branch) except Exception as e: log.error(traceback.format_exc()) raise IMCCommitError(str(e)) finally: # always clear caches, if commit fails we want fresh object also self.mark_for_invalidation(repo_name) self._handle_push(repo, username=user.username, action='push_local', repo_name=repo_name, revisions=[tip.raw_id]) return tip
def _sanitize_path(self, f_path): if f_path.startswith('/') or f_path.startswith('.') or '../' in f_path: raise NonRelativePathError('%s is not an relative path' % f_path) if f_path: f_path = posixpath.normpath(f_path) return f_path
[docs] def get_nodes(self, repo_name, revision, root_path='/', flat=True): """ Recursively walk root dir and return a set of all paths found. :param repo_name: name of repository :param revision: revision for which to list nodes :param root_path: root path to list :param flat: return as a list, if False returns a dict with description """ _files = list() _dirs = list() try: _repo = self.__get_repo(repo_name) changeset = _repo.scm_instance.get_changeset(revision) root_path = root_path.lstrip('/') for topnode, dirs, files in changeset.walk(root_path): for f in files: _files.append(f.path if flat else {"name": f.path, "type": "file"}) for d in dirs: _dirs.append(d.path if flat else {"name": d.path, "type": "dir"}) except RepositoryError: log.debug(traceback.format_exc()) raise return _dirs, _files
[docs] def create_nodes(self, user, repo, message, nodes, parent_cs=None, author=None, trigger_push_hook=True): """ Commits specified nodes to repo. :param user: Kallithea User object or user_id, the committer :param repo: Kallithea Repository object :param message: commit message :param nodes: mapping {filename:{'content':content},...} :param parent_cs: parent changeset, can be empty than it's initial commit :param author: author of commit, cna be different that committer only for git :param trigger_push_hook: trigger push hooks :returns: new committed changeset """ user = User.guess_instance(user) scm_instance = repo.scm_instance_no_cache() processed_nodes = [] for f_path in nodes: content = nodes[f_path]['content'] f_path = self._sanitize_path(f_path) f_path = safe_str(f_path) # decoding here will force that we have proper encoded values # in any other case this will throw exceptions and deny commit if isinstance(content, (basestring,)): content = safe_str(content) elif isinstance(content, (file, cStringIO.OutputType,)): content = content.read() else: raise Exception('Content is of unrecognized type %s' % ( type(content) )) processed_nodes.append((f_path, content)) message = safe_unicode(message) committer = user.full_contact author = safe_unicode(author) if author else committer IMC = self._get_IMC_module(scm_instance.alias) imc = IMC(scm_instance) if not parent_cs: parent_cs = EmptyChangeset(alias=scm_instance.alias) if isinstance(parent_cs, EmptyChangeset): # EmptyChangeset means we we're editing empty repository parents = None else: parents = [parent_cs] # add multiple nodes for path, content in processed_nodes: imc.add(FileNode(path, content=content)) tip = imc.commit(message=message, author=author, parents=parents, branch=parent_cs.branch) self.mark_for_invalidation(repo.repo_name) if trigger_push_hook: self._handle_push(scm_instance, username=user.username, action='push_local', repo_name=repo.repo_name, revisions=[tip.raw_id]) return tip
[docs] def update_nodes(self, user, repo, message, nodes, parent_cs=None, author=None, trigger_push_hook=True): """ Commits specified nodes to repo. Again. """ user = User.guess_instance(user) scm_instance = repo.scm_instance_no_cache() message = safe_unicode(message) committer = user.full_contact author = safe_unicode(author) if author else committer imc_class = self._get_IMC_module(scm_instance.alias) imc = imc_class(scm_instance) if not parent_cs: parent_cs = EmptyChangeset(alias=scm_instance.alias) if isinstance(parent_cs, EmptyChangeset): # EmptyChangeset means we we're editing empty repository parents = None else: parents = [parent_cs] # add multiple nodes for _filename, data in nodes.items(): # new filename, can be renamed from the old one filename = self._sanitize_path(data['filename']) old_filename = self._sanitize_path(_filename) content = data['content'] filenode = FileNode(old_filename, content=content) op = data['op'] if op == 'add': imc.add(filenode) elif op == 'del': imc.remove(filenode) elif op == 'mod': if filename != old_filename: # TODO: handle renames, needs vcs lib changes imc.remove(filenode) imc.add(FileNode(filename, content=content)) else: imc.change(filenode) # commit changes tip = imc.commit(message=message, author=author, parents=parents, branch=parent_cs.branch) self.mark_for_invalidation(repo.repo_name) if trigger_push_hook: self._handle_push(scm_instance, username=user.username, action='push_local', repo_name=repo.repo_name, revisions=[tip.raw_id])
[docs] def delete_nodes(self, user, repo, message, nodes, parent_cs=None, author=None, trigger_push_hook=True): """ Deletes specified nodes from repo. :param user: Kallithea User object or user_id, the committer :param repo: Kallithea Repository object :param message: commit message :param nodes: mapping {filename:{'content':content},...} :param parent_cs: parent changeset, can be empty than it's initial commit :param author: author of commit, cna be different that committer only for git :param trigger_push_hook: trigger push hooks :returns: new committed changeset after deletion """ user = User.guess_instance(user) scm_instance = repo.scm_instance_no_cache() processed_nodes = [] for f_path in nodes: f_path = self._sanitize_path(f_path) # content can be empty but for compatibility it allows same dicts # structure as add_nodes content = nodes[f_path].get('content') processed_nodes.append((f_path, content)) message = safe_unicode(message) committer = user.full_contact author = safe_unicode(author) if author else committer IMC = self._get_IMC_module(scm_instance.alias) imc = IMC(scm_instance) if not parent_cs: parent_cs = EmptyChangeset(alias=scm_instance.alias) if isinstance(parent_cs, EmptyChangeset): # EmptyChangeset means we we're editing empty repository parents = None else: parents = [parent_cs] # add multiple nodes for path, content in processed_nodes: imc.remove(FileNode(path, content=content)) tip = imc.commit(message=message, author=author, parents=parents, branch=parent_cs.branch) self.mark_for_invalidation(repo.repo_name) if trigger_push_hook: self._handle_push(scm_instance, username=user.username, action='push_local', repo_name=repo.repo_name, revisions=[tip.raw_id]) return tip
def get_unread_journal(self): return UserLog.query().count()
[docs] def get_repo_landing_revs(self, repo=None): """ Generates select option with tags branches and bookmarks (for hg only) grouped by type :param repo: """ hist_l = [] choices = [] repo = self.__get_repo(repo) hist_l.append(['rev:tip', _('latest tip')]) choices.append('rev:tip') if repo is None: return choices, hist_l repo = repo.scm_instance branches_group = ([(u'branch:%s' % k, k) for k, v in repo.branches.iteritems()], _("Branches")) hist_l.append(branches_group) choices.extend([x[0] for x in branches_group[0]]) if repo.alias == 'hg': bookmarks_group = ([(u'book:%s' % k, k) for k, v in repo.bookmarks.iteritems()], _("Bookmarks")) hist_l.append(bookmarks_group) choices.extend([x[0] for x in bookmarks_group[0]]) tags_group = ([(u'tag:%s' % k, k) for k, v in repo.tags.iteritems()], _("Tags")) hist_l.append(tags_group) choices.extend([x[0] for x in tags_group[0]]) return choices, hist_l
def _get_git_hook_interpreter(self): """Return a suitable interpreter for Git hooks. Return a suitable string to be written in the POSIX #! shebang line for Git hook scripts so they invoke Kallithea code with the right Python interpreter and in the right environment. """ # Note: sys.executable might not point at a usable Python interpreter. For # example, when using uwsgi, it will point at the uwsgi program itself. # FIXME This may not work on Windows and may need a shell wrapper script. return (kallithea.CONFIG.get('git_hook_interpreter') or sys.executable or '/usr/bin/env python2')
[docs] def install_git_hooks(self, repo, force_create=False): """ Creates a kallithea hook inside a git repository :param repo: Instance of VCS repo :param force_create: Create even if same name hook exists """ loc = os.path.join(repo.path, 'hooks') if not repo.bare: loc = os.path.join(repo.path, '.git', 'hooks') if not os.path.isdir(loc): os.makedirs(loc) tmpl_post = "#!%s\n" % self._get_git_hook_interpreter() tmpl_post += pkg_resources.resource_string( 'kallithea', os.path.join('config', 'post_receive_tmpl.py') ) tmpl_pre = "#!%s\n" % self._get_git_hook_interpreter() tmpl_pre += pkg_resources.resource_string( 'kallithea', os.path.join('config', 'pre_receive_tmpl.py') ) for h_type, tmpl in [('pre', tmpl_pre), ('post', tmpl_post)]: _hook_file = os.path.join(loc, '%s-receive' % h_type) has_hook = False log.debug('Installing git hook in repo %s', repo) if os.path.exists(_hook_file): # let's take a look at this hook, maybe it's kallithea ? log.debug('hook exists, checking if it is from kallithea') with open(_hook_file, 'rb') as f: data = f.read() matches = re.compile(r'(?:%s)\s*=\s*(.*)' % 'KALLITHEA_HOOK_VER').search(data) if matches: try: ver = matches.groups()[0] log.debug('got %s it is kallithea', ver) has_hook = True except Exception: log.error(traceback.format_exc()) else: # there is no hook in this dir, so we want to create one has_hook = True if has_hook or force_create: log.debug('writing %s hook file !', h_type) try: with open(_hook_file, 'wb') as f: tmpl = tmpl.replace('_TMPL_', kallithea.__version__) f.write(tmpl) os.chmod(_hook_file, 0755) except IOError as e: log.error('error writing %s: %s', _hook_file, e) else: log.debug('skipping writing hook file')
[docs]def AvailableRepoGroupChoices(top_perms, repo_group_perm_level, extras=()): """Return group_id,string tuples with choices for all the repo groups where the user has the necessary permissions. Top level is -1. """ groups = RepoGroup.query().all() if HasPermissionAny('hg.admin')('available repo groups'): groups.append(None) else: groups = list(RepoGroupList(groups, perm_level=repo_group_perm_level)) if top_perms and HasPermissionAny(*top_perms)('available repo groups'): groups.append(None) for extra in extras: if not any(rg == extra for rg in groups): groups.append(extra) return RepoGroup.groups_choices(groups=groups)