fix(os/gtime): fix gtime time string handle logic (#4409)

1、gtime的StrToTime方法优化对时间字段格式兼容处理，并且针对时间越界抛出异常。
2、移除部分无用代码：
<img width="697" height="282" alt="image"
src="https://github.com/user-attachments/assets/92a88140-37c0-4ee1-aef7-c6418e9edd06"
/>

Fixes #4394

---------

Signed-off-by: Zjmainstay <[email protected]>
Co-authored-by: hailaz <[email protected]>

Author: Zjmainstay

os/gtime/gtime.go

@@ -222,14 +222,13 @@ func StrToTime(str string, format ...string) (*Time, error) {
 	} else if match = timeRegex2.FindStringSubmatch(str); len(match) > 0 && match[1] != "" {
 		year, month, day = parseDateStr(match[1])
 	} else if match = timeRegex3.FindStringSubmatch(str); len(match) > 0 && match[1] != "" {
-		s := strings.ReplaceAll(match[2], ":", "")
-		if len(s) < 6 {
-			s += strings.Repeat("0", 6-len(s))
-		}
 		hour, _ = strconv.Atoi(match[1])
 		min, _ = strconv.Atoi(match[2])
 		sec, _ = strconv.Atoi(match[3])
 		nsec, _ = strconv.Atoi(match[4])
+		if hour > 23 || min > 59 || sec > 59 {
+			return nil, gerror.NewCodef(gcode.CodeInvalidParameter, `invalid time string "%s"`, str)
+		}
 		for i := 0; i < 9-len(match[4]); i++ {
 			nsec *= 10
 		}
@@ -240,13 +239,19 @@ func StrToTime(str string, format ...string) (*Time, error) {
 
 	// Time
 	if len(match[2]) > 0 {
-		s := strings.ReplaceAll(match[2], ":", "")
-		if len(s) < 6 {
-			s += strings.Repeat("0", 6-len(s))
+		parts := strings.Split(match[2], ":")
+		if len(parts) >= 1 && parts[0] != "" {
+			hour, _ = strconv.Atoi(parts[0])
+		}
+		if len(parts) >= 2 && parts[1] != "" {
+			min, _ = strconv.Atoi(parts[1])
+		}
+		if len(parts) >= 3 && parts[2] != "" {
+			sec, _ = strconv.Atoi(parts[2])
+		}
+		if hour > 23 || min > 59 || sec > 59 {
+			return nil, gerror.NewCodef(gcode.CodeInvalidParameter, `invalid time string "%s"`, str)
 		}
-		hour, _ = strconv.Atoi(s[0:2])
-		min, _ = strconv.Atoi(s[2:4])
-		sec, _ = strconv.Atoi(s[4:6])
 	}
 	// Nanoseconds, check and perform bits filling
 	if len(match[3]) > 0 {

os/gtime/gtime_z_unit_test.go

@@ -183,6 +183,46 @@ func Test_StrToTime(t *testing.T) {
 			}
 		}
 
+		// test special time string
+		var testSpecialDateTimes = []string{
+			"2006-01-02 8:04:05",
+			"2006-01-02 8:4:05",
+			"2006-01-02 8:4:5",
+			"2006-01-02 8:04:05.000",
+			"2006/01/02 8:4:5",
+			"2006.01.02 8:4:5.000",
+			"2006.01.02 - 8:4:5",
+			"2006.01.02 8:4:5 +0800 CST",
+			"2006-01-02T5:5:5+05:01",
+			"2006-01-01T19:3:5-05:01",
+			"2006-01-02T8:4:5",
+			"02-jan-2006 8:4:5",
+			"02/jan/2006 8:4:5",
+			"02.jan.2006 8:4:5",
+			"02.jan.2006:8:4:5",
+		}
+		for _, item := range testSpecialDateTimes {
+			timeTemp, err := gtime.StrToTime(item)
+			t.AssertNil(err)
+			t.Assert(timeTemp.Time.Local().Format("2006-01-02 15:04:05"), "2006-01-02 08:04:05")
+		}
+
+		// test error time string
+		var testErrorDateTimes = []string{
+			"2006-01-02 28:4:5",
+			"2006-01-02 8:60:5",
+			"2006-01-02 8:4:60",
+			"28:20:20",
+			"8:60:20",
+			"8:20:60",
+		}
+		for _, item := range testErrorDateTimes {
+			_, err := gtime.StrToTime(item)
+			if err == nil {
+				t.Error("test fail")
+			}
+		}
+
 		// test err
 		_, err := gtime.StrToTime("2006-01-02 15:04:05", "aabbccdd")
 		if err == nil {