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do not encode / in ref names #1433

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merged 4 commits into from
Feb 22, 2020
Merged

do not encode / in ref names #1433

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4989112
do not encode / in ref names
vetinari Feb 17, 2020
6358385
unit test for refURLEscape
vetinari Feb 17, 2020
3f35727
update comment
vetinari Feb 17, 2020
3f85498
add test for traling %
vetinari Feb 18, 2020
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4 changes: 3 additions & 1 deletion github/git_refs.go
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Original file line number Diff line number Diff line change
Expand Up @@ -79,10 +79,12 @@ func (s *GitService) GetRef(ctx context.Context, owner string, repo string, ref
return r, resp, nil
}

// refURLEscape escapes every path segment of the given ref. Those must
// not contain escaped "/" - as "%2F" - or github will not recognize it.
func refURLEscape(ref string) string {
parts := strings.Split(ref, "/")
for i, s := range parts {
parts[i] = url.QueryEscape(s)
parts[i] = url.PathEscape(s)
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Hmmm... with this change from url.QueryEscape to url.PathEscape, I'm now concerned that we are breaking what was fixed in #1099.

Can you please add a unit test that demonstrates the URL found in #1099?

Unfortunately, I did not request that unit tests be added in #1099 to demonstrate the before/after changes. :-(
But I'm trying to fix that now.

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There's one in #1118 (issue #1101). This still works, GetCommitSHA1() got the refURLEscape() also. I've added a test case for the original trailing % as given in #1099 where http.NewRequest was failing to parse the URL.

}
return strings.Join(parts, "/")
}
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28 changes: 28 additions & 0 deletions github/git_refs_test.go
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Original file line number Diff line number Diff line change
Expand Up @@ -11,6 +11,7 @@ import (
"fmt"
"net/http"
"reflect"
"strings"
"testing"
)

Expand Down Expand Up @@ -444,3 +445,30 @@ func TestGitService_DeleteRef(t *testing.T) {
t.Errorf("Git.DeleteRef returned error: %v", err)
}
}

func TestGitService_GetRef_pathEscape(t *testing.T) {
client, mux, _, teardown := setup()
defer teardown()

mux.HandleFunc("/repos/o/r/git/refs/heads/b", func(w http.ResponseWriter, r *http.Request) {
testMethod(t, r, "GET")
if strings.Contains(r.URL.RawPath, "%2F") {
t.Errorf("RawPath still contains escaped / as %%2F: %v", r.URL.RawPath)
}
fmt.Fprint(w, `
{
"ref": "refs/heads/b",
"url": "https://api.github.com/repos/o/r/git/refs/heads/b",
"object": {
"type": "commit",
"sha": "aa218f56b14c9653891f9e74264a383fa43fefbd",
"url": "https://api.github.com/repos/o/r/git/commits/aa218f56b14c9653891f9e74264a383fa43fefbd"
}
}`)
})

_, _, err := client.Git.GetRef(context.Background(), "o", "r", "refs/heads/b")
if err != nil {
t.Fatalf("Git.GetRef returned error: %v", err)
}
}