ui-shared: add cgit_print_error_page() function

This will allow us to generate error responses with the correct HTTP
response code without needing all of the layout boilerplate.

Signed-off-by: John Keeping <john@keeping.me.uk>

diff --git a/ui-shared.c b/ui-shared.c
index 36fcb212296dd9f0800103a6d035862c2d09fb11..06dd0a8ebc841c652bba0553da8d059273ec02bc 100644 (file)
--- a/ui-shared.c
+++ b/ui-shared.c
@@ -788,6 +788,20 @@ void cgit_print_docend(void)
        html("</body>\n</html>\n");
 }
 
+void cgit_print_error_page(int code, const char *msg, const char *fmt, ...)
+{
+       va_list ap;
+       ctx.page.status = code;
+       ctx.page.statusmsg = msg;
+       cgit_print_http_headers();
+       cgit_print_docstart();
+       cgit_print_pageheader();
+       va_start(ap, fmt);
+       cgit_vprint_error(fmt, ap);
+       va_end(ap);
+       cgit_print_docend();
+}
+
 static void add_clone_urls(void (*fn)(const char *), char *txt, char *suffix)
 {
        struct strbuf **url_list = strbuf_split_str(txt, ' ', 0);

diff --git a/ui-shared.h b/ui-shared.h
index d8a3551bd87cca1165f7fb13a3740b931161a121..652685e91eac6da282f7cb6e6692f5f8a76a3904 100644 (file)
--- a/ui-shared.h
+++ b/ui-shared.h
@@ -64,6 +64,8 @@ extern void cgit_print_http_headers(void);
 extern void cgit_redirect(const char *url, bool permanent);
 extern void cgit_print_docstart(void);
 extern void cgit_print_docend();
+__attribute__((format (printf,3,4)))
+extern void cgit_print_error_page(int code, const char *msg, const char *fmt, ...);
 extern void cgit_print_pageheader(void);
 extern void cgit_print_filemode(unsigned short mode);
 extern void cgit_print_snapshot_links(const char *repo, const char *head,