view sat/plugins/plugin_misc_uri_finder.py @ 4002:5245b675f7ad

plugin XEP-0313: don't wait for MAM to be retrieved in connection workflow: MAM retrieval can be long, and can be done after connection, message just need to be sorted when being inserted (i.e. frontends must do insort). To avoid blocking connection for too long and result in bad UX and timeout risk, one2one MAM message are not retrieved in background.
author Goffi <goffi@goffi.org>
date Fri, 10 Mar 2023 17:22:45 +0100
parents be6d91572633
children 524856bd7b19
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#!/usr/bin/env python3


# SAT plugin to find URIs
# Copyright (C) 2009-2021 Jérôme Poisson (goffi@goffi.org)

# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero 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 Affero General Public License for more details.

# You should have received a copy of the GNU Affero General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.

from sat.core.i18n import _
from sat.core.constants import Const as C
from sat.core.log import getLogger
from twisted.internet import defer
import textwrap
log = getLogger(__name__)
import json
import os.path
import os
import re

PLUGIN_INFO = {
    C.PI_NAME: _("URI finder"),
    C.PI_IMPORT_NAME: "uri_finder",
    C.PI_TYPE: "EXP",
    C.PI_PROTOCOLS: [],
    C.PI_DEPENDENCIES: [],
    C.PI_MAIN: "URIFinder",
    C.PI_HANDLER: "no",
    C.PI_DESCRIPTION: textwrap.dedent(_("""\
    Plugin to find URIs in well know location.
    This allows to retrieve settings to work with a project (e.g. pubsub node used for merge-requests).
    """))
}


SEARCH_FILES = ('readme', 'contributing')


class URIFinder(object):

    def __init__(self, host):
        log.info(_("URI finder plugin initialization"))
        self.host = host
        host.bridge.addMethod("URIFind", ".plugin",
                              in_sign='sas', out_sign='a{sa{ss}}',
                              method=self.find,
                              async_=True)

    def find(self, path, keys):
        """Look for URI in well known locations

        @param path(unicode): path to start with
        @param keys(list[unicode]): keys lookeds after
            e.g.: "tickets", "merge-requests"
        @return (dict[unicode, unicode]): map from key to found uri
        """
        keys_re = '|'.join(keys)
        label_re = r'"(?P<label>[^"]+)"'
        uri_re = re.compile(r'(?P<key>{keys_re})[ :]? +(?P<uri>xmpp:\S+)(?:.*use {label_re} label)?'.format(
            keys_re=keys_re, label_re = label_re))
        path = os.path.normpath(path)
        if not os.path.isdir(path) or not os.path.isabs(path):
            raise ValueError('path must be an absolute path to a directory')

        found_uris = {}
        while path != '/':
            for filename in os.listdir(path):
                name, __ = os.path.splitext(filename)
                if name.lower() in SEARCH_FILES:
                    file_path = os.path.join(path, filename)
                    with open(file_path) as f:
                        for m in uri_re.finditer(f.read()):
                            key = m.group('key')
                            uri = m.group('uri')
                            label = m.group('label')
                            if key in found_uris:
                                log.warning(_("Ignoring already found uri for key \"{key}\"").format(key=key))
                            else:
                                uri_data = found_uris[key] = {'uri': uri}
                                if label is not None:
                                    uri_data['labels'] = json.dumps([label])
            if found_uris:
                break
            path = os.path.dirname(path)

        return defer.succeed(found_uris)