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-rw-r--r--cgit.c4
-rw-r--r--cgit.h1
-rw-r--r--ui-plain.c1
-rw-r--r--ui-shared.c6
4 files changed, 12 insertions, 0 deletions
diff --git a/cgit.c b/cgit.c
index 19adadd..ae20257 100644
--- a/cgit.c
+++ b/cgit.c
@@ -206,6 +206,7 @@ static void prepare_context(struct cgit_context *ctx)
ctx->page.size = 0;
ctx->page.modified = time(NULL);
ctx->page.expires = ctx->page.modified;
+ ctx->page.etag = NULL;
}
struct refmatch {
@@ -431,6 +432,7 @@ static int calc_ttl()
int main(int argc, const char **argv)
{
const char *cgit_config_env = getenv("CGIT_CONFIG");
+ const char *method = getenv("REQUEST_METHOD");
const char *path;
char *qry;
int err, ttl;
@@ -477,6 +479,8 @@ int main(int argc, const char **argv)
ttl = calc_ttl();
ctx.page.expires += ttl*60;
+ if (method && !strcmp(method, "HEAD"))
+ ctx.cfg.nocache = 1;
if (ctx.cfg.nocache)
ctx.cfg.cache_size = 0;
err = cache_process(ctx.cfg.cache_size, ctx.cfg.cache_root,
diff --git a/cgit.h b/cgit.h
index 00aca4c..07a277a 100644
--- a/cgit.h
+++ b/cgit.h
@@ -180,6 +180,7 @@ struct cgit_page {
char *mimetype;
char *charset;
char *filename;
+ char *etag;
char *title;
int status;
char *statusmsg;
diff --git a/ui-plain.c b/ui-plain.c
index 9a9ae7d..93a3a05 100644
--- a/ui-plain.c
+++ b/ui-plain.c
@@ -37,6 +37,7 @@ static void print_object(const unsigned char *sha1, const char *path)
ctx.page.mimetype = "text/plain";
ctx.page.filename = fmt("%s", path);
ctx.page.size = size;
+ ctx.page.etag = sha1_to_hex(sha1);
cgit_print_http_headers(&ctx);
html_raw(buf, size);
match = 1;
diff --git a/ui-shared.c b/ui-shared.c
index 29036d0..10be3c0 100644
--- a/ui-shared.c
+++ b/ui-shared.c
@@ -467,6 +467,8 @@ void cgit_print_age(time_t t, time_t max_relative, char *format)
void cgit_print_http_headers(struct cgit_context *ctx)
{
+ const char *method = getenv("REQUEST_METHOD");
+
if (ctx->page.status)
htmlf("Status: %d %s\n", ctx->page.status, ctx->page.statusmsg);
if (ctx->page.mimetype && ctx->page.charset)
@@ -481,7 +483,11 @@ void cgit_print_http_headers(struct cgit_context *ctx)
ctx->page.filename);
htmlf("Last-Modified: %s\n", http_date(ctx->page.modified));
htmlf("Expires: %s\n", http_date(ctx->page.expires));
+ if (ctx->page.etag)
+ htmlf("ETag: \"%s\"\n", ctx->page.etag);
html("\n");
+ if (method && !strcmp(method, "HEAD"))
+ exit(0);
}
void cgit_print_docstart(struct cgit_context *ctx)