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HTTP/3: added debug logging of response fields.

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Because of QPACK compression it's hard to see what fields are actually
sent by the server.
This commit is contained in:
Sergey Kandaurov 2021-09-13 16:25:37 +03:00
parent bacd7ef0be
commit 10cafa75a4
1 changed files with 38 additions and 3 deletions
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41
src/http/v3/ngx_http_v3_filter_module.c
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@ -340,6 +340,10 @@ ngx_http_v3_header_filter(ngx_http_request_t *r)
b->last = (u_char *) ngx_http_v3_encode_field_section_prefix(b->last,
0, 0, 0);
ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
"http3 output header: \":status: %03ui\"",
r->headers_out.status);
if (r->headers_out.status == NGX_HTTP_OK) {
b->last = (u_char *) ngx_http_v3_encode_field_ri(b->last, 0,
NGX_HTTP_V3_HEADER_STATUS_200);
@ -365,12 +369,19 @@ ngx_http_v3_header_filter(ngx_http_request_t *r)
n = sizeof("nginx") - 1;
}
ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0,
"http3 output header: \"server: %*s\"", n, p);
b->last = (u_char *) ngx_http_v3_encode_field_lri(b->last, 0,
NGX_HTTP_V3_HEADER_SERVER,
p, n);
}
if (r->headers_out.date == NULL) {
ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
"http3 output header: \"date: %V\"",
&ngx_cached_http_time);
b->last = (u_char *) ngx_http_v3_encode_field_lri(b->last, 0,
NGX_HTTP_V3_HEADER_DATE,
ngx_cached_http_time.data,
@ -403,13 +414,23 @@ ngx_http_v3_header_filter(ngx_http_request_t *r)
r->headers_out.content_type.data = p - n;
}
ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
"http3 output header: \"content-type: %V\"",
&r->headers_out.content_type);
b->last = (u_char *) ngx_http_v3_encode_field_lri(b->last, 0,
NGX_HTTP_V3_HEADER_CONTENT_TYPE_TEXT_PLAIN,
r->headers_out.content_type.data,
r->headers_out.content_type.len);
}
if (r->headers_out.content_length == NULL) {
if (r->headers_out.content_length == NULL
&& r->headers_out.content_length_n >= 0)
{
ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
"http3 output header: \"content-length: %O\"",
r->headers_out.content_length_n);
if (r->headers_out.content_length_n > 0) {
p = ngx_sprintf(b->last, "%O", r->headers_out.content_length_n);
n = p - b->last;
@ -421,7 +442,7 @@ ngx_http_v3_header_filter(ngx_http_request_t *r)
b->last = ngx_sprintf(b->last, "%O",
r->headers_out.content_length_n);
} else if (r->headers_out.content_length_n == 0) {
} else {
b->last = (u_char *) ngx_http_v3_encode_field_ri(b->last, 0,
NGX_HTTP_V3_HEADER_CONTENT_LENGTH_ZERO);
}
@ -439,12 +460,19 @@ ngx_http_v3_header_filter(ngx_http_request_t *r)
ngx_http_time(p, r->headers_out.last_modified_time);
ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0,
"http3 output header: \"last-modified: %*s\"", n, p);
b->last = (u_char *) ngx_http_v3_encode_field_lri(b->last, 0,
NGX_HTTP_V3_HEADER_LAST_MODIFIED,
p, n);
}
if (r->headers_out.location && r->headers_out.location->value.len) {
ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
"http3 output header: \"location: %V\"",
&r->headers_out.location->value);
b->last = (u_char *) ngx_http_v3_encode_field_lri(b->last, 0,
NGX_HTTP_V3_HEADER_LOCATION,
r->headers_out.location->value.data,
@ -453,6 +481,9 @@ ngx_http_v3_header_filter(ngx_http_request_t *r)
#if (NGX_HTTP_GZIP)
if (r->gzip_vary) {
ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0,
"http3 output header: \"vary: Accept-Encoding\"");
b->last = (u_char *) ngx_http_v3_encode_field_ri(b->last, 0,
NGX_HTTP_V3_HEADER_VARY_ACCEPT_ENCODING);
}
@ -477,6 +508,10 @@ ngx_http_v3_header_filter(ngx_http_request_t *r)
continue;
}
ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0,
"http3 output header: \"%V: %V\"",
&header[i].key, &header[i].value);
b->last = (u_char *) ngx_http_v3_encode_field_l(b->last,
&header[i].key,
&header[i].value);
@ -1417,7 +1452,7 @@ ngx_http_v3_create_trailers(ngx_http_request_t *r,
}
ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
"http3 trailer: \"%V: %V\"",
"http3 output trailer: \"%V: %V\"",
&header[i].key, &header[i].value);
b->last = (u_char *) ngx_http_v3_encode_field_l(b->last,