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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,53 @@ | ||
| // Copyright 2023 The casbin Authors. All Rights Reserved. | ||
| // | ||
| // Licensed under the Apache License, Version 2.0 (the "License"); | ||
| // you may not use this file except in compliance with the License. | ||
| // You may obtain a copy of the License at | ||
| // | ||
| // http://www.apache.org/licenses/LICENSE-2.0 | ||
| // | ||
| // Unless required by applicable law or agreed to in writing, software | ||
| // distributed under the License is distributed on an "AS IS" BASIS, | ||
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| // See the License for the specific language governing permissions and | ||
| // limitations under the License. | ||
|
|
||
| package object | ||
|
|
||
| import ( | ||
| "github.com/casbin/caswaf/util" | ||
| ) | ||
|
|
||
| var ruleMap = map[string]*Rule{} | ||
|
|
||
| func InitRuleMap() { | ||
| err := refreshRuleMap() | ||
| if err != nil { | ||
| panic(err) | ||
| } | ||
| } | ||
|
|
||
| func refreshRuleMap() error { | ||
| newRuleMap := map[string]*Rule{} | ||
| rules, err := GetGlobalRules() | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
|
||
| for _, rule := range rules { | ||
| newRuleMap[util.GetIdFromOwnerAndName(rule.Owner, rule.Name)] = rule | ||
| } | ||
|
|
||
| ruleMap = newRuleMap | ||
| return nil | ||
| } | ||
|
|
||
| func GetRulesByRuleIds(ids []string) []*Rule { | ||
| var res []*Rule | ||
| for _, id := range ids { | ||
| if rule, ok := ruleMap[id]; ok { | ||
| res = append(res, rule) | ||
| } | ||
| } | ||
| return res | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,65 @@ | ||
| // Copyright 2024 The casbin Authors. All Rights Reserved. | ||
| // | ||
| // Licensed under the Apache License, Version 2.0 (the "License"); | ||
| // you may not use this file except in compliance with the License. | ||
| // You may obtain a copy of the License at | ||
| // | ||
| // http://www.apache.org/licenses/LICENSE-2.0 | ||
| // | ||
| // Unless required by applicable law or agreed to in writing, software | ||
| // distributed under the License is distributed on an "AS IS" BASIS, | ||
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| // See the License for the specific language governing permissions and | ||
| // limitations under the License. | ||
|
|
||
| package rule | ||
|
|
||
| import ( | ||
| "fmt" | ||
| "net/http" | ||
|
|
||
| "github.com/casbin/caswaf/object" | ||
| ) | ||
|
|
||
| type Rule interface { | ||
| checkRule(expressions []*object.Expression, req *http.Request) (bool, string, string, error) | ||
| } | ||
|
|
||
| func CheckRules(wafRuleIds []string, r *http.Request) (string, string, error) { | ||
| rules := object.GetRulesByRuleIds(wafRuleIds) | ||
| for _, rule := range rules { | ||
| var ruleObj Rule | ||
| switch rule.Type { | ||
| case "User-Agent": | ||
| ruleObj = &UaRule{} | ||
| case "IP": | ||
| ruleObj = &IpRule{} | ||
| case "WAF": | ||
| ruleObj = &WafRule{} | ||
| default: | ||
| return "", "", fmt.Errorf("unknown rule type: %s for rule: %s", rule.Type, rule.GetId()) | ||
| } | ||
|
|
||
| isHit, action, reason, err := ruleObj.checkRule(rule.Expressions, r) | ||
| if err != nil { | ||
| return "", "", err | ||
| } | ||
| if action == "" { | ||
| action = rule.Action | ||
| } | ||
| if isHit { | ||
| if action == "Block" || action == "Drop" { | ||
| if rule.Reason != "" { | ||
| reason = rule.Reason | ||
| } | ||
| return action, reason, nil | ||
| } else if action == "Allow" { | ||
| return action, reason, nil | ||
| } else { | ||
| return "", "", fmt.Errorf("unknown rule action: %s for rule: %s", action, rule.GetId()) | ||
| } | ||
| } | ||
| } | ||
|
|
||
| return "", "", nil | ||
| } |
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