debian-mirror-gitlab/workhorse/internal/upload/body_uploader.go

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package upload
import (
"fmt"
"io/ioutil"
"net/http"
"net/url"
"strings"
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"gitlab.com/gitlab-org/gitlab/workhorse/internal/api"
"gitlab.com/gitlab-org/gitlab/workhorse/internal/helper"
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"gitlab.com/gitlab-org/gitlab/workhorse/internal/upload/destination"
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)
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// RequestBody is a request middleware. It will store the request body to
// a location by determined an api.Response value. It then forwards the
// request to gitlab-rails without the original request body.
func RequestBody(rails PreAuthorizer, h http.Handler, p Preparer) http.Handler {
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return rails.PreAuthorizeHandler(func(w http.ResponseWriter, r *http.Request, a *api.Response) {
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opts, err := p.Prepare(a)
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if err != nil {
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helper.Fail500(w, r, fmt.Errorf("RequestBody: preparation failed: %v", err))
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return
}
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fh, err := destination.Upload(r.Context(), r.Body, r.ContentLength, opts)
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if err != nil {
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helper.Fail500(w, r, fmt.Errorf("RequestBody: upload failed: %v", err))
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return
}
data := url.Values{}
fields, err := fh.GitLabFinalizeFields("file")
if err != nil {
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helper.Fail500(w, r, fmt.Errorf("RequestBody: finalize fields failed: %v", err))
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return
}
for k, v := range fields {
data.Set(k, v)
}
// Hijack body
body := data.Encode()
r.Body = ioutil.NopCloser(strings.NewReader(body))
r.ContentLength = int64(len(body))
r.Header.Set("Content-Type", "application/x-www-form-urlencoded")
sft := SavedFileTracker{Request: r}
sft.Track("file", fh.LocalPath)
if err := sft.Finalize(r.Context()); err != nil {
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helper.Fail500(w, r, fmt.Errorf("RequestBody: finalize failed: %v", err))
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return
}
// And proxy the request
h.ServeHTTP(w, r)
}, "/authorize")
}