Feature/tra 3349 validation rules merged with develop (#148)

* Implemented validation rules, based on: https://up9.atlassian.net/browse/TRA-3349 * Color on Entry based on rules * Background red/green based on rules * Change flag --validation-rules to --test-rules * rules tab UI updated * rules tab font and background-color is changed for objects * Merged with develop * Fixed compilation issues. * Renamed fullEntry -> harEntry where appropriate. * Change green/red logic * Update models.go * Fix latency bug and alignment * Merge Conflicts fix * Working after merge * Working on Nimrod comments * Resolving conflicts * Resolving conflicts * Resolving conflicts * Nimrod Comments pt.3 * Log Error on configmap creation if the user doesn't have permission. * Checking configmap permission to ignore --test-rules * Revert time for mizu to get ready * Nimrod comments pt 4 && merge develop pt3 * Nimrod comments pt 4 && merge develop pt3 * Const rulePolicyPath and filename Co-authored-by: Neim <elezin9@gmail.com> Co-authored-by: nimrod-up9 <nimrod@up9.com>
2025-09-09 22:41:05 +00:00 · 2021-08-04 09:21:36 -03:00
parent 06c8056443
commit dea223bfe1
32 changed files with 716 additions and 97 deletions
--- a/agent/pkg/rules/models.go
+++ b/agent/pkg/rules/models.go
@@ -0,0 +1,110 @@
+package rules
+
+import (
+	"encoding/json"
+	"fmt"
+	"reflect"
+	"regexp"
+	"strings"
+
+	"github.com/google/martian/har"
+	"github.com/up9inc/mizu/shared"
+	jsonpath "github.com/yalp/jsonpath"
+)
+
+type RulesMatched struct {
+	Matched bool              `json:"matched"`
+	Rule    shared.RulePolicy `json:"rule"`
+}
+
+func appendRulesMatched(rulesMatched []RulesMatched, matched bool, rule shared.RulePolicy) []RulesMatched {
+	return append(rulesMatched, RulesMatched{Matched: matched, Rule: rule})
+}
+
+func ValidatePath(URLFromRule string, URL string) bool {
+	if URLFromRule != "" {
+		matchPath, err := regexp.MatchString(URLFromRule, URL)
+		if err != nil || !matchPath {
+			return false
+		}
+	}
+	return true
+}
+
+func ValidateService(serviceFromRule string, service string) bool {
+	if serviceFromRule != "" {
+		matchService, err := regexp.MatchString(serviceFromRule, service)
+		if err != nil || !matchService {
+			return false
+		}
+	}
+	return true
+}
+
+func MatchRequestPolicy(harEntry har.Entry, service string) (int, []RulesMatched) {
+	enforcePolicy, _ := shared.DecodeEnforcePolicy(fmt.Sprintf("%s/%s", shared.RulePolicyPath, shared.RulePolicyFileName))
+	var resultPolicyToSend []RulesMatched
+	for _, rule := range enforcePolicy.Rules {
+		if !ValidatePath(rule.Path, harEntry.Request.URL) || !ValidateService(rule.Service, service) {
+			continue
+		}
+		if rule.Type == "json" {
+			var bodyJsonMap interface{}
+			if err := json.Unmarshal(harEntry.Response.Content.Text, &bodyJsonMap); err != nil {
+				continue
+			}
+			out, err := jsonpath.Read(bodyJsonMap, rule.Key)
+			if err != nil || out == nil {
+				continue
+			}
+			var matchValue bool
+			if reflect.TypeOf(out).Kind() == reflect.String {
+				matchValue, err = regexp.MatchString(rule.Value, out.(string))
+				if err != nil {
+					continue
+				}
+			} else {
+				val := fmt.Sprint(out)
+				matchValue, err = regexp.MatchString(rule.Value, val)
+				if err != nil {
+					continue
+				}
+			}
+			resultPolicyToSend = appendRulesMatched(resultPolicyToSend, matchValue, rule)
+		} else if rule.Type == "header" {
+			for j := range harEntry.Response.Headers {
+				matchKey, err := regexp.MatchString(rule.Key, harEntry.Response.Headers[j].Name)
+				if err != nil {
+					continue
+				}
+				if matchKey {
+					matchValue, err := regexp.MatchString(rule.Value, harEntry.Response.Headers[j].Value)
+					if err != nil {
+						continue
+					}
+					resultPolicyToSend = appendRulesMatched(resultPolicyToSend, matchValue, rule)
+				}
+			}
+		} else {
+			resultPolicyToSend = appendRulesMatched(resultPolicyToSend, true, rule)
+		}
+	}
+	return len(enforcePolicy.Rules), resultPolicyToSend
+}
+
+func PassedValidationRules(rulesMatched []RulesMatched, numberOfRules int) (bool, int64) {
+	if len(rulesMatched) == 0 {
+		return false, 0
+	}
+	for _, rule := range rulesMatched {
+		if rule.Matched == false {
+			return false, -1
+		}
+	}
+	for _, rule := range rulesMatched {
+		if strings.ToLower(rule.Rule.Type) == "latency" {
+			return true, rule.Rule.Latency
+		}
+	}
+	return true, -1
+}