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MINOR: http-htx: Add a function to retrieve the headers size of an HTX message

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http_get_hdrs_size() function may now be used to get the bytes held by headers
in an HTX message. It only works if the headers were not already
forwarded. Metadata are not counted here.
This commit is contained in:
Christopher Faulet 2020-02-07 16:39:41 +01:00
parent a71667c07d
commit 727a3f1ca3
2 changed files with 19 additions and 0 deletions
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1
include/proto/http_htx.h
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@ -32,6 +32,7 @@ extern struct buffer http_err_chunks[HTTP_ERR_SIZE];
extern struct list http_errors_list;
struct htx_sl *http_get_stline(struct htx *htx);
size_t http_get_hdrs_size(struct htx *htx);
int http_find_header(const struct htx *htx, const struct ist name, struct http_hdr_ctx *ctx, int full);
int http_add_header(struct htx *htx, const struct ist n, const struct ist v);
int http_replace_stline(struct htx *htx, const struct ist p1, const struct ist p2, const struct ist p3);

18
src/http_htx.c
View File

@ -72,6 +72,24 @@ struct htx_sl *http_get_stline(struct htx *htx)
return htx_get_blk_ptr(htx, blk);
}
/* Returns the headers size in the HTX message */
size_t http_get_hdrs_size(struct htx *htx)
{
struct htx_blk *blk;
size_t sz = 0;
blk = htx_get_first_blk(htx);
if (!blk || htx_get_blk_type(blk) > HTX_BLK_EOH)
return sz;
for (; blk; blk = htx_get_next_blk(htx, blk)) {
sz += htx_get_blksz(blk);
if (htx_get_blk_type(blk) == HTX_BLK_EOH)
break;
}
return sz;
}
/* Finds the first or next occurrence of header <name> in the HTX message <htx>
* using the context <ctx>. This structure holds everything necessary to use the
* header and find next occurrence. If its <blk> member is NULL, the header is