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-rw-r--r--cgit.c62
1 files changed, 58 insertions, 4 deletions
diff --git a/cgit.c b/cgit.c
index 9ca93a7..e8acc03 100644
--- a/cgit.c
+++ b/cgit.c
@@ -45,13 +45,44 @@ static int cgit_prepare_cache(struct cacheitem *item)
 	return 1;
 }
 
+struct refmatch {
+	char *req_ref;
+	char *first_ref;
+	int match;
+};
+
+int find_current_ref(const char *refname, const unsigned char *sha1,
+		     int flags, void *cb_data)
+{
+	struct refmatch *info;
+
+	info = (struct refmatch *)cb_data;
+	if (!strcmp(refname, info->req_ref))
+		info->match = 1;
+	if (!info->first_ref)
+		info->first_ref = xstrdup(refname);
+	return info->match;
+}
+
+char *find_default_branch(struct repoinfo *repo)
+{
+	struct refmatch info;
+
+	info.req_ref = repo->defbranch;
+	info.first_ref = NULL;
+	info.match = 0;
+	for_each_branch_ref(find_current_ref, &info);
+	if (info.match)
+		return info.req_ref;
+	else
+		return info.first_ref;
+}
+
 static void cgit_print_repo_page(struct cacheitem *item)
 {
-	char *title;
+	char *title, *tmp;
 	int show_search;
-
-	if (!cgit_query_head)
-		cgit_query_head = cgit_repo->defbranch;
+	unsigned char sha1[20];
 
 	if (chdir(cgit_repo->path)) {
 		title = fmt("%s - %s", cgit_root_title, "Bad request");
@@ -67,6 +98,29 @@ static void cgit_print_repo_page(struct cacheitem *item)
 	show_search = 0;
 	setenv("GIT_DIR", cgit_repo->path, 1);
 
+	if (!cgit_query_head) {
+		cgit_query_head = xstrdup(find_default_branch(cgit_repo));
+		cgit_repo->defbranch = cgit_query_head;
+	}
+
+	if (!cgit_query_head) {
+		cgit_print_docstart(title, item);
+		cgit_print_pageheader(title, 0);
+		cgit_print_error("Repository seems to be empty");
+		cgit_print_docend();
+		return;
+	}
+
+	if (get_sha1(cgit_query_head, sha1)) {
+		tmp = xstrdup(cgit_query_head);
+		cgit_query_head = cgit_repo->defbranch;
+		cgit_print_docstart(title, item);
+		cgit_print_pageheader(title, 0);
+		cgit_print_error(fmt("Invalid branch: %s", tmp));
+		cgit_print_docend();
+		return;
+	}
+
 	if ((cgit_cmd == CMD_SNAPSHOT) && cgit_repo->snapshots) {
 		cgit_print_snapshot(item, cgit_query_head, cgit_query_sha1,
 				    cgit_repobasename(cgit_repo->url),
'nohover-highlight'> Otherwise redirections come out wrong. Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com> 2018-11-21git: use xz compressed archive for downloadChristian Hesse Upstream will stop providing gz compressed source tarballs [0], so stop using them. [0] https://lists.zx2c4.com/pipermail/cgit/2018-November/004254.html Signed-off-by: Christian Hesse <mail@eworm.de> 2018-10-12git: update to v2.19.1Christian Hesse Update to git version v2.19.1. Required changes follow upstream commits: * commit: add repository argument to get_cached_commit_buffer (3ce85f7e5a41116145179f0fae2ce6d86558d099) * commit: add repository argument to lookup_commit_reference (2122f6754c93be8f02bfb5704ed96c88fc9837a8) * object: add repository argument to parse_object (109cd76dd3467bd05f8d2145b857006649741d5c) * tag: add repository argument to deref_tag (a74093da5ed601a09fa158e5ba6f6f14c1142a3e) * tag: add repository argument to lookup_tag (ce71efb713f97f476a2d2ab541a0c73f684a5db3) * tree: add repository argument to lookup_tree (f86bcc7b2ce6cad68ba1a48a528e380c6126705e) * archive.c: avoid access to the_index (b612ee202a48f129f81f8f6a5af6cf71d1a9caef) * for_each_*_object: move declarations to object-store.h (0889aae1cd18c1804ba01c1a4229e516dfb9fe9b) Signed-off-by: Christian Hesse <mail@eworm.de> 2018-09-11ui-ssdiff: ban strcat()Christian Hesse Git upstream bans strcat() with commit: banned.h: mark strcat() as banned 1b11b64b815db62f93a04242e4aed5687a448748 Signed-off-by: Christian Hesse <mail@eworm.de> 2018-09-11ui-ssdiff: ban strncpy()Christian Hesse Git upstream bans strncpy() with commit: banned.h: mark strncpy() as banned e488b7aba743d23b830d239dcc33d9ca0745a9ad Signed-off-by: Christian Hesse <mail@eworm.de> 2018-09-11ui-shared: ban strcat()Christian Hesse Git upstream bans strcat() with commit: banned.h: mark strcat() as banned 1b11b64b815db62f93a04242e4aed5687a448748 To avoid compiler warnings from gcc 8.1.x we get the hard way. Signed-off-by: Christian Hesse <mail@eworm.de> 2018-09-11ui-patch: ban sprintf()Christian Hesse Git upstream bans sprintf() with commit: banned.h: mark sprintf() as banned cc8fdaee1eeaf05d8dd55ff11f111b815f673c58 Signed-off-by: Christian Hesse <mail@eworm.de> 2018-09-11ui-log: ban strncpy()Christian Hesse Git upstream bans strncpy() with commit: banned.h: mark strncpy() as banned e488b7aba743d23b830d239dcc33d9ca0745a9ad Signed-off-by: Christian Hesse <mail@eworm.de> 2018-09-11ui-log: ban strcpy()Christian Hesse Git upstream bans strcpy() with commit: automatically ban strcpy() c8af66ab8ad7cd78557f0f9f5ef6a52fd46ee6dd Signed-off-by: Christian Hesse <mail@eworm.de> 2018-09-11parsing: ban sprintf()Christian Hesse Git upstream bans sprintf() with commit: banned.h: mark sprintf() as banned cc8fdaee1eeaf05d8dd55ff11f111b815f673c58 Signed-off-by: Christian Hesse <mail@eworm.de> 2018-09-11parsing: ban strncpy()Christian Hesse Git upstream bans strncpy() with commit: banned.h: mark strncpy() as banned e488b7aba743d23b830d239dcc33d9ca0745a9ad Signed-off-by: Christian Hesse <mail@eworm.de> 2018-08-28filters: generate anchor links from markdownChristian Hesse This makes the markdown filter generate anchor links for headings. Signed-off-by: Christian Hesse <mail@eworm.de> Tested-by: jean-christophe manciot <actionmystique@gmail.com> 2018-08-03Bump version.Jason A. Donenfeld Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com> 2018-08-03clone: fix directory traversalJason A. Donenfeld This was introduced in the initial version of this code, way back when in 2008. $ curl http://127.0.0.1/cgit/repo/objects/?path=../../../../../../../../../etc/passwd root:x:0:0:root:/root:/bin/sh ... Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com> Reported-by: Jann Horn <jannh@google.com> 2018-08-03config: record repo.snapshot-prefix in the per-repo configKonstantin Ryabitsev