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@@ -0,0 +1,147 @@
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+package operation_setting
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+
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+import (
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+ "fmt"
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+ "sort"
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+ "strconv"
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+ "strings"
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+)
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+
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+type StatusCodeRange struct {
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+ Start int
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+ End int
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+}
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+
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+var AutomaticDisableStatusCodeRanges = []StatusCodeRange{{Start: 401, End: 401}}
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+
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+func AutomaticDisableStatusCodesToString() string {
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+ if len(AutomaticDisableStatusCodeRanges) == 0 {
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+ return ""
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+ }
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+ parts := make([]string, 0, len(AutomaticDisableStatusCodeRanges))
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+ for _, r := range AutomaticDisableStatusCodeRanges {
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+ if r.Start == r.End {
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+ parts = append(parts, strconv.Itoa(r.Start))
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+ continue
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+ }
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+ parts = append(parts, fmt.Sprintf("%d-%d", r.Start, r.End))
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+ }
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+ return strings.Join(parts, ",")
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+}
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+
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+func AutomaticDisableStatusCodesFromString(s string) error {
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+ ranges, err := ParseHTTPStatusCodeRanges(s)
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+ if err != nil {
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+ return err
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+ }
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+ AutomaticDisableStatusCodeRanges = ranges
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+ return nil
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+}
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+
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+func ShouldDisableByStatusCode(code int) bool {
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+ if code < 100 || code > 599 {
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+ return false
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+ }
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+ for _, r := range AutomaticDisableStatusCodeRanges {
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+ if code < r.Start {
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+ return false
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+ }
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+ if code <= r.End {
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+ return true
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+ }
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+ }
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+ return false
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+}
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+
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+func ParseHTTPStatusCodeRanges(input string) ([]StatusCodeRange, error) {
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+ input = strings.TrimSpace(input)
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+ if input == "" {
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+ return nil, nil
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+ }
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+
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+ input = strings.NewReplacer(",", ",").Replace(input)
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+ segments := strings.Split(input, ",")
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+
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+ var ranges []StatusCodeRange
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+ var invalid []string
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+
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+ for _, seg := range segments {
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+ seg = strings.TrimSpace(seg)
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+ if seg == "" {
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+ continue
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+ }
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+ r, err := parseHTTPStatusCodeToken(seg)
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+ if err != nil {
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+ invalid = append(invalid, seg)
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+ continue
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+ }
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+ ranges = append(ranges, r)
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+ }
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+
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+ if len(invalid) > 0 {
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+ return nil, fmt.Errorf("invalid http status code rules: %s", strings.Join(invalid, ", "))
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+ }
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+ if len(ranges) == 0 {
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+ return nil, nil
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+ }
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+
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+ sort.Slice(ranges, func(i, j int) bool {
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+ if ranges[i].Start == ranges[j].Start {
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+ return ranges[i].End < ranges[j].End
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+ }
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+ return ranges[i].Start < ranges[j].Start
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+ })
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+
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+ merged := []StatusCodeRange{ranges[0]}
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+ for _, r := range ranges[1:] {
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+ last := &merged[len(merged)-1]
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+ if r.Start <= last.End+1 {
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+ if r.End > last.End {
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+ last.End = r.End
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+ }
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+ continue
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+ }
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+ merged = append(merged, r)
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+ }
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+
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+ return merged, nil
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+}
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+
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+func parseHTTPStatusCodeToken(token string) (StatusCodeRange, error) {
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+ token = strings.TrimSpace(token)
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+ token = strings.ReplaceAll(token, " ", "")
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+ if token == "" {
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+ return StatusCodeRange{}, fmt.Errorf("empty token")
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+ }
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+
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+ if strings.Contains(token, "-") {
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+ parts := strings.Split(token, "-")
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+ if len(parts) != 2 || parts[0] == "" || parts[1] == "" {
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+ return StatusCodeRange{}, fmt.Errorf("invalid range token: %s", token)
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+ }
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+ start, err := strconv.Atoi(parts[0])
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+ if err != nil {
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+ return StatusCodeRange{}, fmt.Errorf("invalid range start: %s", token)
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+ }
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+ end, err := strconv.Atoi(parts[1])
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+ if err != nil {
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+ return StatusCodeRange{}, fmt.Errorf("invalid range end: %s", token)
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+ }
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+ if start > end {
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+ return StatusCodeRange{}, fmt.Errorf("range start > end: %s", token)
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+ }
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+ if start < 100 || end > 599 {
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+ return StatusCodeRange{}, fmt.Errorf("range out of bounds: %s", token)
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+ }
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+ return StatusCodeRange{Start: start, End: end}, nil
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+ }
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+
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+ code, err := strconv.Atoi(token)
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+ if err != nil {
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+ return StatusCodeRange{}, fmt.Errorf("invalid status code: %s", token)
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+ }
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+ if code < 100 || code > 599 {
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+ return StatusCodeRange{}, fmt.Errorf("status code out of bounds: %s", token)
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+ }
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+ return StatusCodeRange{Start: code, End: code}, nil
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+}
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