Prevent NPE on invalid diff (#17197)

* Prevent NPE on invalid diff

If ParseCompareInfo returns a nil compare info the defer function needs to ensure
that it does not attempt to close the HeadGitRepo.

Fix #17193

Signed-off-by: Andrew Thornton <art27@cantab.net>

* add TEST

Co-authored-by: 6543 <6543@obermui.de>
tokarchuk/v1.17
zeripath 3 years ago committed by GitHub
parent 3bbdce2601
commit 206ea10b45
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GPG Key ID: 4AEE18F83AFDEB23
  1. 5
      integrations/compare_test.go
  2. 2
      routers/web/repo/compare.go
  3. 2
      routers/web/repo/pull.go

@ -6,6 +6,7 @@ package integrations
import ( import (
"net/http" "net/http"
"strings"
"testing" "testing"
"github.com/stretchr/testify/assert" "github.com/stretchr/testify/assert"
@ -21,4 +22,8 @@ func TestCompareTag(t *testing.T) {
selection := htmlDoc.doc.Find(".choose.branch .filter.dropdown") selection := htmlDoc.doc.Find(".choose.branch .filter.dropdown")
// A dropdown for both base and head. // A dropdown for both base and head.
assert.Lenf(t, selection.Nodes, 2, "The template has changed") assert.Lenf(t, selection.Nodes, 2, "The template has changed")
req = NewRequest(t, "GET", "/user2/repo1/compare/invalid")
resp = session.MakeRequest(t, req, http.StatusNotFound)
assert.False(t, strings.Contains(resp.Body.String(), "/assets/img/500.png"), "expect 404 page not 500")
} }

@ -635,7 +635,7 @@ func getBranchesAndTagsForRepo(user *models.User, repo *models.Repository) (bool
func CompareDiff(ctx *context.Context) { func CompareDiff(ctx *context.Context) {
ci := ParseCompareInfo(ctx) ci := ParseCompareInfo(ctx)
defer func() { defer func() {
if ci.HeadGitRepo != nil { if ci != nil && ci.HeadGitRepo != nil {
ci.HeadGitRepo.Close() ci.HeadGitRepo.Close()
} }
}() }()

@ -1043,7 +1043,7 @@ func CompareAndPullRequestPost(ctx *context.Context) {
ci := ParseCompareInfo(ctx) ci := ParseCompareInfo(ctx)
defer func() { defer func() {
if ci.HeadGitRepo != nil { if ci != nil && ci.HeadGitRepo != nil {
ci.HeadGitRepo.Close() ci.HeadGitRepo.Close()
} }
}() }()

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