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47 lines
1.2 KiB
47 lines
1.2 KiB
package binding
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import (
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"reflect"
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"regexp"
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"github.com/go-kratos/kratos/v2/encoding/form"
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"google.golang.org/protobuf/proto"
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)
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var reg = regexp.MustCompile(`/{[\\.\w]+}`)
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// EncodeURL encode proto message to url path.
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func EncodeURL(pathTemplate string, msg interface{}, needQuery bool) string {
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if msg == nil || (reflect.ValueOf(msg).Kind() == reflect.Ptr && reflect.ValueOf(msg).IsNil()) {
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return pathTemplate
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}
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queryParams, _ := form.EncodeValues(msg)
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pathParams := make(map[string]struct{})
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path := reg.ReplaceAllStringFunc(pathTemplate, func(in string) string {
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// it's unreachable because the reg means that must have more than one char in {}
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//if len(in) < 4 { //nolint:gomnd // ** explain the 4 number here :-) **
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// return in
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//}
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key := in[2 : len(in)-1]
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value := queryParams.Get(key)
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pathParams[key] = struct{}{}
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return "/" + value
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})
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if !needQuery {
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if v, ok := msg.(proto.Message); ok {
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if query := form.EncodeFieldMask(v.ProtoReflect()); query != "" {
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return path + "?" + query
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}
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}
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return path
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}
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if len(queryParams) > 0 {
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for key := range pathParams {
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delete(queryParams, key)
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}
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if query := queryParams.Encode(); query != "" {
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path += "?" + query
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}
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}
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return path
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}
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