diff --git a/services/repository/files/content.go b/services/repository/files/content.go
index d1d043e..a92262f 100644
--- a/services/repository/files/content.go
+++ b/services/repository/files/content.go
@@ -11,6 +11,7 @@ import (
 	repo_model "code.gitea.io/gitea/models/repo"
 	"code.gitea.io/gitea/modules/git"
 	gitea_api "code.gitea.io/gitea/modules/structs"
+	"code.gitea.io/gitea/modules/util"
 	gitea_files_service "code.gitea.io/gitea/services/repository/files"
 	hat_api "code.gitlink.org.cn/Gitlink/gitea_hat.git/modules/structs"
 )
@@ -117,7 +118,7 @@ func GetContents(ctx context.Context, repo *repo_model.Repository, treePath, ref
 		return nil, fmt.Errorf("no commit found for the ref [ref %s]", ref)
 	}
 
-	selfURL, err := url.Parse(fmt.Sprintf("%s/contents/%s?ref=%s", repo.APIURL(), treePath, origRef))
+	selfURL, err := url.Parse(repo.APIURL() + "/contents/" + util.PathEscapeSegments(treePath) + "?ref=" + url.QueryEscape(origRef))
 	if err != nil {
 		return nil, err
 	}
@@ -184,7 +185,7 @@ func GetContents(ctx context.Context, repo *repo_model.Repository, treePath, ref
 	}
 	// Handle links
 	if entry.IsRegular() || entry.IsLink() {
-		downloadURL, err := url.Parse(fmt.Sprintf("%s/raw/%s/%s/%s", repo.HTMLURL(), refType, ref, treePath))
+		downloadURL, err := url.Parse(repo.HTMLURL() + "/raw/" + url.PathEscape(string(refType)) + "/" + util.PathEscapeSegments(ref) + "/" + util.PathEscapeSegments(treePath))
 		if err != nil {
 			return nil, err
 		}
@@ -192,7 +193,7 @@ func GetContents(ctx context.Context, repo *repo_model.Repository, treePath, ref
 		contentsResponse.DownloadURL = &downloadURLString
 	}
 	if !entry.IsSubModule() {
-		htmlURL, err := url.Parse(fmt.Sprintf("%s/src/%s/%s/%s", repo.HTMLURL(), refType, ref, treePath))
+		htmlURL, err := url.Parse(repo.HTMLURL() + "/src/" + url.PathEscape(string(refType)) + "/" + util.PathEscapeSegments(ref) + "/" + util.PathEscapeSegments(treePath))
 		if err != nil {
 			return nil, err
 		}
@@ -200,7 +201,7 @@ func GetContents(ctx context.Context, repo *repo_model.Repository, treePath, ref
 		contentsResponse.HTMLURL = &htmlURLString
 		contentsResponse.Links.HTMLURL = &htmlURLString
 
-		gitURL, err := url.Parse(fmt.Sprintf("%s/git/blobs/%s", repo.APIURL(), entry.ID.String()))
+		gitURL, err := url.Parse(repo.APIURL() + "/git/blobs/" + url.PathEscape(entry.ID.String()))
 		if err != nil {
 			return nil, err
 		}