Esempio n. 1
0
def get_oauth_user(scopes):
    from indico.core.oauth import require_oauth
    if not request.headers.get('Authorization',
                               '').lower().startswith('bearer '):
        return None
    try:
        oauth_token = require_oauth.acquire_token(scopes)
    except OAuth2Error as exc:
        require_oauth.raise_error_response(exc)
    return oauth_token.user
Esempio n. 2
0
File: util.py Progetto: javfg/indico
def get_oauth_user(scopes):
    from indico.core.oauth import require_oauth
    from indico.core.oauth.util import TOKEN_PREFIX_SERVICE
    token = request.headers.get('Authorization', '')
    if not token.lower().startswith('bearer ') or token.lower().startswith(f'bearer {TOKEN_PREFIX_SERVICE}'):
        return None
    try:
        oauth_token = require_oauth.acquire_token(scopes)
    except OAuth2Error as exc:
        require_oauth.raise_error_response(exc)
    return oauth_token.user
Esempio n. 3
0
def get_oauth_user(scopes):
    from indico.core.oauth import require_oauth
    if (not request.headers.get('Authorization',
                                '').lower().startswith('bearer ') and
            # TODO: remove the check below once indico-checkin no longer sends tokens in
            # the query string!
            'access_token' not in request.args):
        return None
    try:
        oauth_token = require_oauth.acquire_token(scopes)
    except OAuth2Error as exc:
        require_oauth.raise_error_response(exc)
    return oauth_token.user
Esempio n. 4
0
def handler(prefix, path):
    path = posixpath.join('/', prefix, path)
    logger = Logger.get('httpapi')
    if request.method == 'POST':
        # Convert POST data to a query string
        queryParams = list(request.form.lists())
        query = urlencode(queryParams, doseq=1)
        # we only need/keep multiple values so we can properly validate the signature.
        # the legacy code below expects a dict with just the first value.
        # if you write a new api endpoint that needs multiple values get them from
        # ``request.values.getlist()`` directly
        queryParams = {key: values[0] for key, values in queryParams}
    else:
        # Parse the actual query string
        queryParams = {key: value for key, value in request.args.items()}
        query = request.query_string.decode()

    apiKey = get_query_parameter(queryParams, ['ak', 'apikey'], None)
    cookieAuth = get_query_parameter(queryParams, ['ca', 'cookieauth'],
                                     'no') == 'yes'
    signature = get_query_parameter(queryParams, ['signature'])
    timestamp = get_query_parameter(queryParams, ['timestamp'],
                                    0,
                                    integer=True)
    noCache = get_query_parameter(queryParams, ['nc', 'nocache'],
                                  'no') == 'yes'
    pretty = get_query_parameter(queryParams, ['p', 'pretty'], 'no') == 'yes'
    onlyPublic = get_query_parameter(queryParams, ['op', 'onlypublic'],
                                     'no') == 'yes'
    onlyAuthed = get_query_parameter(queryParams, ['oa', 'onlyauthed'],
                                     'no') == 'yes'
    scope = 'read:legacy_api' if request.method == 'GET' else 'write:legacy_api'

    oauth_token = None
    if request.headers.get('Authorization', '').lower().startswith('bearer '):
        try:
            oauth_token = require_oauth.acquire_token([scope])
        except OAuth2Error as exc:
            raise BadRequest(f'OAuth error: {exc}')

    # Get our handler function and its argument and response type
    hook, dformat = HTTPAPIHook.parseRequest(path, queryParams)
    if hook is None or dformat is None:
        raise NotFound

    # Disable caching if we are not just retrieving data (or the hook requires it)
    if request.method == 'POST' or hook.NO_CACHE:
        noCache = True

    ak = error = result = None
    ts = int(time.time())
    typeMap = {}
    status_code = None
    is_response = False
    try:
        used_session = None
        if cookieAuth:
            used_session = session
            if not used_session.user:  # ignore guest sessions
                used_session = None

        if apiKey or oauth_token or not used_session:
            auth_token = None
            if not oauth_token:
                # Validate the API key (and its signature)
                ak, enforceOnlyPublic = checkAK(apiKey, signature, timestamp,
                                                path, query)
                if enforceOnlyPublic:
                    onlyPublic = True
                # Create an access wrapper for the API key's user
                user = ak.user if ak and not onlyPublic else None
            else:  # Access Token (OAuth)
                user = oauth_token.user if not onlyPublic else None
            # Get rid of API key in cache key if we did not impersonate a user
            if ak and user is None:
                cacheKey = normalizeQuery(
                    path,
                    query,
                    remove=('_', 'ak', 'apiKey', 'signature', 'timestamp',
                            'nc', 'nocache', 'oa', 'onlyauthed',
                            'access_token'))
            else:
                cacheKey = normalizeQuery(
                    path,
                    query,
                    remove=('_', 'signature', 'timestamp', 'nc', 'nocache',
                            'oa', 'onlyauthed', 'access_token'))
                if signature:
                    # in case the request was signed, store the result under a different key
                    cacheKey = 'signed_' + cacheKey
                if auth_token:
                    # if oauth was used, we also make the cache key unique
                    cacheKey = f'oauth-{auth_token.id}_{cacheKey}'
        else:
            # We authenticated using a session cookie.
            # XXX: This is not used anymore within indico and should be removed whenever we rewrite
            # the code here.
            token = request.headers.get(
                'X-CSRF-Token', get_query_parameter(queryParams,
                                                    ['csrftoken']))
            if used_session.csrf_protected and used_session.csrf_token != token:
                raise HTTPAPIError('Invalid CSRF token', 403)
            user = used_session.user if not onlyPublic else None
            cacheKey = normalizeQuery(path,
                                      query,
                                      remove=('_', 'nc', 'nocache', 'ca',
                                              'cookieauth', 'oa', 'onlyauthed',
                                              'csrftoken'))

        if user is not None:
            # We *always* prefix the cache key with the user ID so we never get an overlap between
            # authenticated and unauthenticated requests
            cacheKey = f'user-{user.id}_{cacheKey}'
            sentry_sdk.set_user({
                'id': user.id,
                'email': user.email,
                'name': user.full_name,
                'source': 'http_api'
            })
        else:
            cacheKey = f'public_{cacheKey}'

        # Bail out if the user requires authentication but is not authenticated
        if onlyAuthed and not user:
            raise HTTPAPIError('Not authenticated', 403)

        addToCache = not hook.NO_CACHE
        cacheKey = RE_REMOVE_EXTENSION.sub('', cacheKey)
        if not noCache:
            obj = API_CACHE.get(cacheKey)
            if obj is not None:
                result, extra, ts, complete, typeMap = obj
                addToCache = False
        if result is None:
            g.current_api_user = user
            # Perform the actual exporting
            res = hook(user)
            if isinstance(res, current_app.response_class):
                addToCache = False
                is_response = True
                result, extra, complete, typeMap = res, {}, True, {}
            elif isinstance(res, tuple) and len(res) == 4:
                result, extra, complete, typeMap = res
            else:
                result, extra, complete, typeMap = res, {}, True, {}
        if result is not None and addToCache:
            ttl = api_settings.get('cache_ttl')
            if ttl > 0:
                API_CACHE.set(cacheKey, (result, extra, ts, complete, typeMap),
                              ttl)
    except HTTPAPIError as e:
        error = e
        if e.code:
            status_code = e.code

    if result is None and error is None:
        raise NotFound
    else:
        if ak and error is None:
            # Commit only if there was an API key and no error
            norm_path, norm_query = normalizeQuery(path,
                                                   query,
                                                   remove=('signature',
                                                           'timestamp'),
                                                   separate=True)
            uri = '?'.join(_f for _f in (norm_path, norm_query) if _f)
            ak.register_used(request.remote_addr, uri, not onlyPublic)
            db.session.commit()
        else:
            # No need to commit stuff if we didn't use an API key (nothing was written)
            # XXX do we even need this?
            db.session.rollback()

        # Log successful POST api requests
        if error is None and request.method == 'POST':
            logger.info('API request: %s?%s', path, query)
        if is_response:
            return result
        serializer = Serializer.create(dformat,
                                       query_params=queryParams,
                                       pretty=pretty,
                                       typeMap=typeMap,
                                       **hook.serializer_args)
        if error:
            if not serializer.schemaless:
                # if our serializer has a specific schema (HTML, ICAL, etc...)
                # use JSON, since it is universal
                serializer = Serializer.create('json')

            result = {'message': error.message}
        elif serializer.encapsulate:
            result = HTTPAPIResultSchema().dump(
                HTTPAPIResult(result, path, query, ts, extra))

        try:
            data = serializer(result)
            response = current_app.make_response(data)
            content_type = serializer.get_response_content_type()
            if content_type:
                response.content_type = content_type
            if status_code:
                response.status_code = status_code
            return response
        except Exception:
            logger.exception('Serialization error in request %s?%s', path,
                             query)
            raise