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package negotiator |
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import ( |
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"context" |
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"math" |
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"net/http" |
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"regexp" |
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"strconv" |
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"strings" |
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"github.com/getkin/kin-openapi/openapi3" |
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"github.com/muonsoft/openapi-mock/pkg/logcontext" |
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"github.com/pkg/errors" |
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) |
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type StatusCodeNegotiator interface { |
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NegotiateStatusCode(request *http.Request, responses openapi3.Responses) (key string, code int, err error) |
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} |
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func NewStatusCodeNegotiator() StatusCodeNegotiator { |
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1 |
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return &statusCodeNegotiator{ |
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rangeDefinitionPattern: regexp.MustCompile("^[1-5]xx$"), |
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} |
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} |
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type statusCodeNegotiator struct { |
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rangeDefinitionPattern *regexp.Regexp |
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} |
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func (negotiator *statusCodeNegotiator) NegotiateStatusCode(request *http.Request, responses openapi3.Responses) (key string, code int, err error) { |
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minSuccessCode := math.MaxInt32 |
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minSuccessCodeKey := "" |
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hasSuccessCode := false |
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minErrorCode := math.MaxInt32 |
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minErrorCodeKey := "" |
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hasErrorCode := false |
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for key := range responses { |
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code, err := negotiator.parseStatusCode(request.Context(), key) |
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if err != nil { |
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continue |
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} |
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if code >= 200 && code < 300 && code < minSuccessCode { |
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hasSuccessCode = true |
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minSuccessCode = code |
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minSuccessCodeKey = key |
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} else if code < minErrorCode { |
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hasErrorCode = true |
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minErrorCode = code |
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minErrorCodeKey = key |
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} |
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} |
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if hasSuccessCode { |
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return minSuccessCodeKey, minSuccessCode, nil |
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} |
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if hasErrorCode { |
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return minErrorCodeKey, minErrorCode, nil |
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} |
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return "", http.StatusInternalServerError, errors.Wrap(ErrNoMatchingResponse, "[statusCodeNegotiator] failed to negotiate response") |
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} |
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func (negotiator *statusCodeNegotiator) parseStatusCode(ctx context.Context, key string) (int, error) { |
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var code int |
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var err error |
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key = strings.ToLower(key) |
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switch { |
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case key == "default": |
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code = http.StatusInternalServerError |
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case negotiator.rangeDefinitionPattern.MatchString(key): |
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code, _ = strconv.Atoi(string(key[0])) |
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code *= 100 |
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default: |
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code, err = strconv.Atoi(key) |
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if err != nil { |
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logger := logcontext.LoggerFromContext(ctx) |
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logger.Warnf( |
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"[statusCodeNegotiator] response with key '%s' is ignored: "+ |
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"key must be a valid status code integer or equal to 'default', "+ |
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"'1xx', '2xx', '3xx', '4xx' or '5xx'", |
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key, |
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) |
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} |
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} |
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return code, err |
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} |
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muonsoft /
openapi-mock
