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authorLars Hjemli2009-02-19 22:38:36 +0100
committerLars Hjemli2009-02-19 22:38:36 +0100
commit488a214a81a25c6397c56822ed1713f51dddc520 (patch)
tree93b3be74f6c7b3ae6557a9d3c5c2856ff5efe8ed
parentui-tree: escape ascii-text properly in hexdump view (diff)
downloadcgit-488a214a81a25c6397c56822ed1713f51dddc520.tar.gz
cgit-488a214a81a25c6397c56822ed1713f51dddc520.zip
Add support for ETag in 'plain' view
When downloading a blob identified by its path, the client might want
to know if the blob has been modified since a previous download of the
same path. To this end, an ETag containing the blob SHA1 seems to be
ideal.

Todo: add support for HEAD requests...

Suggested-by: Owen Taylor <otaylor@redhat.com>
Signed-off-by: Lars Hjemli <hjemli@gmail.com>
-rw-r--r--cgit.c1
-rw-r--r--cgit.h1
-rw-r--r--ui-plain.c1
-rw-r--r--ui-shared.c2
4 files changed, 5 insertions, 0 deletions
diff --git a/cgit.c b/cgit.c index 64d95f9..411e421 100644 --- a/cgit.c +++ b/cgit.c
@@ -206,6 +206,7 @@ static void prepare_context(struct cgit_context *ctx)
206 ctx->page.size = 0; 206 ctx->page.size = 0;
207 ctx->page.modified = time(NULL); 207 ctx->page.modified = time(NULL);
208 ctx->page.expires = ctx->page.modified; 208 ctx->page.expires = ctx->page.modified;
209 ctx->page.etag = NULL;
209} 210}
210 211
211struct refmatch { 212struct refmatch {
diff --git a/cgit.h b/cgit.h index 5f7af51..2bfbe7b 100644 --- a/cgit.h +++ b/cgit.h
@@ -180,6 +180,7 @@ struct cgit_page {
180 char *mimetype; 180 char *mimetype;
181 char *charset; 181 char *charset;
182 char *filename; 182 char *filename;
183 char *etag;
183 char *title; 184 char *title;
184}; 185};
185 186
diff --git a/ui-plain.c b/ui-plain.c index 5addd9e..f73cd14 100644 --- a/ui-plain.c +++ b/ui-plain.c
@@ -34,6 +34,7 @@ static void print_object(const unsigned char *sha1, const char *path)
34 ctx.page.mimetype = "text/plain"; 34 ctx.page.mimetype = "text/plain";
35 ctx.page.filename = fmt("%s", path); 35 ctx.page.filename = fmt("%s", path);
36 ctx.page.size = size; 36 ctx.page.size = size;
37 ctx.page.etag = sha1_to_hex(sha1);
37 cgit_print_http_headers(&ctx); 38 cgit_print_http_headers(&ctx);
38 html_raw(buf, size); 39 html_raw(buf, size);
39 match = 1; 40 match = 1;
diff --git a/ui-shared.c b/ui-shared.c index de77bbf..86a7d29 100644 --- a/ui-shared.c +++ b/ui-shared.c
@@ -468,6 +468,8 @@ void cgit_print_http_headers(struct cgit_context *ctx)
468 ctx->page.filename); 468 ctx->page.filename);
469 htmlf("Last-Modified: %s\n", http_date(ctx->page.modified)); 469 htmlf("Last-Modified: %s\n", http_date(ctx->page.modified));
470 htmlf("Expires: %s\n", http_date(ctx->page.expires)); 470 htmlf("Expires: %s\n", http_date(ctx->page.expires));
471 if (ctx->page.etag)
472 htmlf("ETag: \"%s\"\n", ctx->page.etag);
471 html("\n"); 473 html("\n");
472} 474}
473 475