119 lines
		
	
	
		
			4.0 KiB
		
	
	
	
		
			Python
		
	
	
			
		
		
	
	
			119 lines
		
	
	
		
			4.0 KiB
		
	
	
	
		
			Python
		
	
	
# Copyright 2016 OpenMarket Ltd
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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#     http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import copy
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from typing import Any, Dict, List, Optional
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from synapse.push.rulekinds import PRIORITY_CLASS_INVERSE_MAP, PRIORITY_CLASS_MAP
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from synapse.types import UserID
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from .baserules import FilteredPushRules, PushRule
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def format_push_rules_for_user(
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    user: UserID, ruleslist: FilteredPushRules
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) -> Dict[str, Dict[str, list]]:
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    """Converts a list of rawrules and a enabled map into nested dictionaries
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    to match the Matrix client-server format for push rules"""
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    rules: Dict[str, Dict[str, List[Dict[str, Any]]]] = {
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        "global": {},
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        "device": {},
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    }
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    rules["global"] = _add_empty_priority_class_arrays(rules["global"])
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    for r, enabled in ruleslist:
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        template_name = _priority_class_to_template_name(r.priority_class)
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        rulearray = rules["global"][template_name]
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        template_rule = _rule_to_template(r)
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        if not template_rule:
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            continue
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        rulearray.append(template_rule)
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        template_rule["enabled"] = enabled
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        if "conditions" not in template_rule:
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            # Not all formatted rules have explicit conditions, e.g. "room"
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            # rules omit them as they can be derived from the kind and rule ID.
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            #
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            # If the formatted rule has no conditions then we can skip the
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            # formatting of conditions.
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            continue
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        # Remove internal stuff.
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        template_rule["conditions"] = copy.deepcopy(template_rule["conditions"])
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        for c in template_rule["conditions"]:
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            c.pop("_cache_key", None)
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            pattern_type = c.pop("pattern_type", None)
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            if pattern_type == "user_id":
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                c["pattern"] = user.to_string()
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            elif pattern_type == "user_localpart":
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                c["pattern"] = user.localpart
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            sender_type = c.pop("sender_type", None)
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            if sender_type == "user_id":
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                c["sender"] = user.to_string()
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    return rules
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def _add_empty_priority_class_arrays(d: Dict[str, list]) -> Dict[str, list]:
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    for pc in PRIORITY_CLASS_MAP.keys():
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        d[pc] = []
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    return d
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def _rule_to_template(rule: PushRule) -> Optional[Dict[str, Any]]:
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    templaterule: Dict[str, Any]
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    unscoped_rule_id = _rule_id_from_namespaced(rule.rule_id)
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    template_name = _priority_class_to_template_name(rule.priority_class)
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    if template_name in ["override", "underride"]:
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        templaterule = {"conditions": rule.conditions, "actions": rule.actions}
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    elif template_name in ["sender", "room"]:
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        templaterule = {"actions": rule.actions}
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        unscoped_rule_id = rule.conditions[0]["pattern"]
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    elif template_name == "content":
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        if len(rule.conditions) != 1:
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            return None
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        thecond = rule.conditions[0]
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        if "pattern" not in thecond:
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            return None
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        templaterule = {"actions": rule.actions}
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        templaterule["pattern"] = thecond["pattern"]
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    else:
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        # This should not be reached unless this function is not kept in sync
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        # with PRIORITY_CLASS_INVERSE_MAP.
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        raise ValueError("Unexpected template_name: %s" % (template_name,))
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    if unscoped_rule_id:
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        templaterule["rule_id"] = unscoped_rule_id
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    if rule.default:
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        templaterule["default"] = True
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    return templaterule
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def _rule_id_from_namespaced(in_rule_id: str) -> str:
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    return in_rule_id.split("/")[-1]
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def _priority_class_to_template_name(pc: int) -> str:
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    return PRIORITY_CLASS_INVERSE_MAP[pc]
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