Fix issue2049 6

sqle/driver/mysql/audit_offline_test.go

@@ -3712,3 +3712,78 @@ func TestDMLAvoidWhereEqualNull(t *testing.T) {
 			newTestResult())
 	})
 }
+
+func TestDDLAvoidEvent(t *testing.T) {
+	rule := rulepkg.RuleHandlerMap[rulepkg.DDLAvoidEvent].Rule
+	t.Run(`create event`, func(t *testing.T) {
+		runSingleRuleInspectCase(
+			rule,
+			t,
+			``,
+			DefaultMysqlInspectOffline(),
+			`create event my_event on schedule every 10 second do update schema.table set mycol = mycol + 1;`,
+			newTestResult().add(driverV2.RuleLevelWarn, "", "语法错误或者解析器不支持，请人工确认SQL正确性").addResult(rulepkg.DDLAvoidEvent))
+	})
+	t.Run(`create event with DEFINER`, func(t *testing.T) {
+		runSingleRuleInspectCase(
+			rule,
+			t,
+			``,
+			DefaultMysqlInspectOffline(),
+			`create DEFINER=user event my_event on schedule every 10 second do update schema.table set mycol = mycol + 1;`,
+			newTestResult().add(driverV2.RuleLevelWarn, "", "语法错误或者解析器不支持，请人工确认SQL正确性").addResult(rulepkg.DDLAvoidEvent))
+	})
+	t.Run(`alter event`, func(t *testing.T) {
+		runSingleRuleInspectCase(
+			rule,
+			t,
+			``,
+			DefaultMysqlInspectOffline(),
+			`ALTER EVENT your_event_name
+			ON SCHEDULE
+			  EVERY 1 DAY
+			  STARTS '2023-01-01 00:00:00'
+			DO
+			  -- 修改事件的具体操作
+			  UPDATE your_table SET your_column = your_value WHERE your_condition;
+			`,
+			newTestResult().add(driverV2.RuleLevelWarn, "", "语法错误或者解析器不支持，请人工确认SQL正确性").addResult(rulepkg.DDLAvoidEvent))
+	})
+	t.Run(`alter event with DEFINER`, func(t *testing.T) {
+		runSingleRuleInspectCase(
+			rule,
+			t,
+			``,
+			DefaultMysqlInspectOffline(),
+			`ALTER DEFINER = user EVENT your_event_name
+			ON SCHEDULE
+			  EVERY 1 DAY
+			  STARTS '2023-01-01 00:00:00'
+			DO
+			  -- 修改事件的具体操作
+			  UPDATE your_table SET your_column = your_value WHERE your_condition;
+			`,
+			newTestResult().add(driverV2.RuleLevelWarn, "", "语法错误或者解析器不支持，请人工确认SQL正确性").addResult(rulepkg.DDLAvoidEvent))
+	})
+	t.Run(`create event with blank line`, func(t *testing.T) {
+		runSingleRuleInspectCase(
+			rule,
+			t,
+			``,
+			DefaultMysqlInspectOffline(),
+			`
+
+
+			create event my_event on schedule every 10 second do update schema.table set mycol = mycol + 1;`,
+			newTestResult().add(driverV2.RuleLevelWarn, "", "语法错误或者解析器不支持，请人工确认SQL正确性").addResult(rulepkg.DDLAvoidEvent))
+	})
+	t.Run(`create event with space`, func(t *testing.T) {
+		runSingleRuleInspectCase(
+			rule,
+			t,
+			``,
+			DefaultMysqlInspectOffline(),
+			`       create event my_event on schedule every 10 second do update schema.table set mycol = mycol + 1;`,
+			newTestResult().add(driverV2.RuleLevelWarn, "", "语法错误或者解析器不支持，请人工确认SQL正确性").addResult(rulepkg.DDLAvoidEvent))
+	})
+}

sqle/driver/mysql/rule/rule.go

@@ -120,6 +120,7 @@ const (
 	DDLAvoidText                                       = "ddl_avoid_text"
 	DDLAvoidFullText                                   = "ddl_avoid_full_text"
 	DDLAvoidGeometry                                   = "ddl_avoid_geometry"
+	DDLAvoidEvent                                      = "ddl_avoid_event"
 )
 
 // inspector DML rules
@@ -2389,6 +2390,18 @@ var RuleHandlers = []RuleHandler{
 		Message:      "WHERE子句中禁止将NULL值与其他字段或值进行比较运算",
 		Func:         avoidWhereEqualNull,
 	},
+	{
+		Rule: driverV2.Rule{
+			Name:       DDLAvoidEvent,
+			Desc:       "禁止使用event",
+			Annotation: "使用event会增加数据库的维护难度和依赖性，并且也会造成安全问题。",
+			Level:      driverV2.RuleLevelError,
+			Category:   RuleTypeUsageSuggestion,
+		},
+		AllowOffline: true,
+		Message:      "禁止使用event",
+		Func:         avoidEvent,
+	},
 }
 
 func checkMathComputationOrFuncOnIndex(input *RuleHandlerInput) error {
@@ -7759,3 +7772,10 @@ func avoidWhereEqualNull(input *RuleHandlerInput) error {
 	}
 	return nil
 }
+
+func avoidEvent(input *RuleHandlerInput) error {
+	if util.IsEventSQL(input.Node.Text()) {
+		addResult(input.Res, input.Rule, input.Rule.Name)
+	}
+	return nil
+}

sqle/driver/mysql/util/util.go

@@ -4,6 +4,7 @@ import (
 	"context"
 	"errors"
 	"fmt"
+	"regexp"
 	"strconv"
 	"strings"
 
@@ -249,3 +250,18 @@ func IsGeometryColumn(col *ast.ColumnDef) bool {
 	}
 	return false
 }
+
+// TODO: 暂时使用正则表达式匹配event，后续会修改语法树进行匹配event
+func IsEventSQL(sql string) bool {
+	createPattern := `^CREATE\s+(DEFINER\s?=.+?)?EVENT`
+	createRe := regexp.MustCompile(createPattern)
+	alterPattern := `^ALTER\s+(DEFINER\s?=.+?)?EVENT`
+	alterRe := regexp.MustCompile(alterPattern)
+
+	sql = strings.ToUpper(strings.TrimSpace(sql))
+	if createRe.MatchString(sql) {
+		return true
+	} else {
+		return alterRe.MatchString(sql)
+	}
+}