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82 lines
1.5 KiB
Go
82 lines
1.5 KiB
Go
package internal
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import (
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"bytes"
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"encoding/json"
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"io"
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"net/http"
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"github.com/fullstorydev/grpcurl"
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"github.com/golang/protobuf/jsonpb"
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"github.com/zeromicro/go-zero/rest/httpx"
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"github.com/zeromicro/go-zero/rest/pathvar"
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)
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// NewRequestParser creates a new request parser from the given http.Request and resolver.
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func NewRequestParser(r *http.Request, resolver jsonpb.AnyResolver) (grpcurl.RequestParser, error) {
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vars := pathvar.Vars(r)
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params, err := httpx.GetFormValues(r)
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if err != nil {
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return nil, err
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}
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for k, v := range vars {
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params[k] = v
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}
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body, ok := getBody(r)
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if !ok {
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return buildJsonRequestParser(params, resolver)
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}
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if len(params) == 0 {
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return grpcurl.NewJSONRequestParser(body, resolver), nil
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}
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m := make(map[string]any)
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if err := json.NewDecoder(body).Decode(&m); err != nil {
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return nil, err
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}
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for k, v := range params {
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m[k] = v
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}
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return buildJsonRequestParser(m, resolver)
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}
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func buildJsonRequestParser(m map[string]any, resolver jsonpb.AnyResolver) (
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grpcurl.RequestParser, error) {
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var buf bytes.Buffer
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if err := json.NewEncoder(&buf).Encode(m); err != nil {
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return nil, err
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}
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return grpcurl.NewJSONRequestParser(&buf, resolver), nil
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}
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func getBody(r *http.Request) (io.Reader, bool) {
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if r.Body == nil {
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return nil, false
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}
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if r.ContentLength == 0 {
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return nil, false
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}
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if r.ContentLength > 0 {
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return r.Body, true
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}
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var buf bytes.Buffer
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if _, err := io.Copy(&buf, r.Body); err != nil {
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return nil, false
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}
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if buf.Len() > 0 {
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return &buf, true
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}
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return nil, false
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}
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