57 lines
1.7 KiB
Go
57 lines
1.7 KiB
Go
package middleware
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import (
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"bufio"
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"encoding/json"
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"io"
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"net/http"
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"github.com/Sirupsen/logrus"
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"github.com/docker/docker/api/server/httputils"
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"github.com/docker/docker/pkg/ioutils"
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"golang.org/x/net/context"
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)
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// DebugRequestMiddleware dumps the request to logger
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func DebugRequestMiddleware(handler func(ctx context.Context, w http.ResponseWriter, r *http.Request, vars map[string]string) error) func(ctx context.Context, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
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return func(ctx context.Context, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
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logrus.Debugf("Calling %s %s", r.Method, r.RequestURI)
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if r.Method != "POST" {
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return handler(ctx, w, r, vars)
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}
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if err := httputils.CheckForJSON(r); err != nil {
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return handler(ctx, w, r, vars)
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}
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maxBodySize := 4096 // 4KB
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if r.ContentLength > int64(maxBodySize) {
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return handler(ctx, w, r, vars)
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}
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body := r.Body
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bufReader := bufio.NewReaderSize(body, maxBodySize)
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r.Body = ioutils.NewReadCloserWrapper(bufReader, func() error { return body.Close() })
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b, err := bufReader.Peek(maxBodySize)
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if err != io.EOF {
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// either there was an error reading, or the buffer is full (in which case the request is too large)
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return handler(ctx, w, r, vars)
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}
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var postForm map[string]interface{}
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if err := json.Unmarshal(b, &postForm); err == nil {
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if _, exists := postForm["password"]; exists {
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postForm["password"] = "*****"
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}
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formStr, errMarshal := json.Marshal(postForm)
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if errMarshal == nil {
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logrus.Debugf("form data: %s", string(formStr))
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} else {
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logrus.Debugf("form data: %q", postForm)
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}
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}
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return handler(ctx, w, r, vars)
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}
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}
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