You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
82 lines
2.9 KiB
82 lines
2.9 KiB
// Copyright 2022 The Gitea Authors. All rights reserved.
|
|
// Use of this source code is governed by a MIT-style
|
|
// license that can be found in the LICENSE file.
|
|
|
|
package migrations
|
|
|
|
import (
|
|
"fmt"
|
|
"strings"
|
|
|
|
admin_model "code.gitea.io/gitea/models/admin"
|
|
"code.gitea.io/gitea/modules/git"
|
|
"code.gitea.io/gitea/modules/log"
|
|
base "code.gitea.io/gitea/modules/migration"
|
|
)
|
|
|
|
// WarnAndNotice will log the provided message and send a repository notice
|
|
func WarnAndNotice(fmtStr string, args ...interface{}) {
|
|
log.Warn(fmtStr, args...)
|
|
if err := admin_model.CreateRepositoryNotice(fmt.Sprintf(fmtStr, args...)); err != nil {
|
|
log.Error("create repository notice failed: ", err)
|
|
}
|
|
}
|
|
|
|
func hasBaseURL(toCheck, baseURL string) bool {
|
|
if len(baseURL) > 0 && baseURL[len(baseURL)-1] != '/' {
|
|
baseURL += "/"
|
|
}
|
|
return strings.HasPrefix(toCheck, baseURL)
|
|
}
|
|
|
|
// CheckAndEnsureSafePR will check that a given PR is safe to download
|
|
func CheckAndEnsureSafePR(pr *base.PullRequest, commonCloneBaseURL string, g base.Downloader) bool {
|
|
valid := true
|
|
// SECURITY: the patchURL must be checked to have the same baseURL as the current to prevent open redirect
|
|
if pr.PatchURL != "" && !hasBaseURL(pr.PatchURL, commonCloneBaseURL) {
|
|
// TODO: Should we check that this url has the expected format for a patch url?
|
|
WarnAndNotice("PR #%d in %s has invalid PatchURL: %s baseURL: %s", pr.Number, g, pr.PatchURL, commonCloneBaseURL)
|
|
pr.PatchURL = ""
|
|
valid = false
|
|
}
|
|
|
|
// SECURITY: the headCloneURL must be checked to have the same baseURL as the current to prevent open redirect
|
|
if pr.Head.CloneURL != "" && !hasBaseURL(pr.Head.CloneURL, commonCloneBaseURL) {
|
|
// TODO: Should we check that this url has the expected format for a patch url?
|
|
WarnAndNotice("PR #%d in %s has invalid HeadCloneURL: %s baseURL: %s", pr.Number, g, pr.Head.CloneURL, commonCloneBaseURL)
|
|
pr.Head.CloneURL = ""
|
|
valid = false
|
|
}
|
|
|
|
// SECURITY: SHAs Must be a SHA
|
|
if pr.MergeCommitSHA != "" && !git.IsValidSHAPattern(pr.MergeCommitSHA) {
|
|
WarnAndNotice("PR #%d in %s has invalid MergeCommitSHA: %s", pr.Number, g, pr.MergeCommitSHA)
|
|
pr.MergeCommitSHA = ""
|
|
}
|
|
if pr.Head.SHA != "" && !git.IsValidSHAPattern(pr.Head.SHA) {
|
|
WarnAndNotice("PR #%d in %s has invalid HeadSHA: %s", pr.Number, g, pr.Head.SHA)
|
|
pr.Head.SHA = ""
|
|
valid = false
|
|
}
|
|
if pr.Base.SHA != "" && !git.IsValidSHAPattern(pr.Base.SHA) {
|
|
WarnAndNotice("PR #%d in %s has invalid BaseSHA: %s", pr.Number, g, pr.Base.SHA)
|
|
pr.Base.SHA = ""
|
|
valid = false
|
|
}
|
|
|
|
// SECURITY: Refs must be valid refs or SHAs
|
|
if pr.Head.Ref != "" && !git.IsValidRefPattern(pr.Head.Ref) {
|
|
WarnAndNotice("PR #%d in %s has invalid HeadRef: %s", pr.Number, g, pr.Head.Ref)
|
|
pr.Head.Ref = ""
|
|
valid = false
|
|
}
|
|
if pr.Base.Ref != "" && !git.IsValidRefPattern(pr.Base.Ref) {
|
|
WarnAndNotice("PR #%d in %s has invalid BaseRef: %s", pr.Number, g, pr.Base.Ref)
|
|
pr.Base.Ref = ""
|
|
valid = false
|
|
}
|
|
|
|
pr.EnsuredSafe = true
|
|
|
|
return valid
|
|
}
|
|
|