diff options
Diffstat (limited to 'modules/http2/h2_c2.c')
| -rw-r--r-- | modules/http2/h2_c2.c | 192 |
1 files changed, 135 insertions, 57 deletions
diff --git a/modules/http2/h2_c2.c b/modules/http2/h2_c2.c index 44a08d0..a955200 100644 --- a/modules/http2/h2_c2.c +++ b/modules/http2/h2_c2.c @@ -48,8 +48,10 @@ #include "h2_headers.h" #include "h2_session.h" #include "h2_stream.h" +#include "h2_ws.h" #include "h2_c2.h" #include "h2_util.h" +#include "mod_http2.h" static module *mpm_module; @@ -133,10 +135,22 @@ apr_status_t h2_c2_child_init(apr_pool_t *pool, server_rec *s) APR_PROTO_TCP, pool); } +static void h2_c2_log_io(conn_rec *c2, apr_off_t bytes_sent) +{ + if (bytes_sent && h2_c_logio_add_bytes_out) { + h2_c_logio_add_bytes_out(c2, bytes_sent); + } +} + void h2_c2_destroy(conn_rec *c2) { + h2_conn_ctx_t *conn_ctx = h2_conn_ctx_get(c2); + ap_log_cerror(APLOG_MARK, APLOG_TRACE3, 0, c2, "h2_c2(%s): destroy", c2->log_id); + if(!c2->aborted && conn_ctx && conn_ctx->bytes_sent) { + h2_c2_log_io(c2, conn_ctx->bytes_sent); + } apr_pool_destroy(c2->pool); } @@ -146,6 +160,10 @@ void h2_c2_abort(conn_rec *c2, conn_rec *from) AP_DEBUG_ASSERT(conn_ctx); AP_DEBUG_ASSERT(conn_ctx->stream_id); + if(!c2->aborted && conn_ctx->bytes_sent) { + h2_c2_log_io(c2, conn_ctx->bytes_sent); + } + if (conn_ctx->beam_in) { h2_beam_abort(conn_ctx->beam_in, from); } @@ -157,6 +175,7 @@ void h2_c2_abort(conn_rec *c2, conn_rec *from) typedef struct { apr_bucket_brigade *bb; /* c2: data in holding area */ + unsigned did_upgrade_eos:1; /* for Upgrade, we added an extra EOS */ } h2_c2_fctx_in_t; static apr_status_t h2_c2_filter_in(ap_filter_t* f, @@ -200,7 +219,17 @@ static apr_status_t h2_c2_filter_in(ap_filter_t* f, APR_BRIGADE_INSERT_TAIL(fctx->bb, b); } } - + + /* If this is a HTTP Upgrade, it means the request we process + * has not Content, although the stream is not necessarily closed. + * On first read, we insert an EOS to signal processing that it + * has the complete body. */ + if (conn_ctx->is_upgrade && !fctx->did_upgrade_eos) { + b = apr_bucket_eos_create(f->c->bucket_alloc); + APR_BRIGADE_INSERT_TAIL(fctx->bb, b); + fctx->did_upgrade_eos = 1; + } + while (APR_BRIGADE_EMPTY(fctx->bb)) { /* Get more input data for our request. */ if (APLOGctrace2(f->c)) { @@ -326,42 +355,13 @@ receive: static apr_status_t beam_out(conn_rec *c2, h2_conn_ctx_t *conn_ctx, apr_bucket_brigade* bb) { - apr_off_t written, header_len = 0; + apr_off_t written = 0; apr_status_t rv; - if (h2_c_logio_add_bytes_out) { - /* mod_logio wants to report the number of bytes written in a - * response, including header and footer fields. Since h2 converts - * those during c1 processing into the HPACKed h2 HEADER frames, - * we need to give mod_logio something here and count just the - * raw lengths of all headers in the buckets. */ - apr_bucket *b; - for (b = APR_BRIGADE_FIRST(bb); - b != APR_BRIGADE_SENTINEL(bb); - b = APR_BUCKET_NEXT(b)) { -#if AP_HAS_RESPONSE_BUCKETS - if (AP_BUCKET_IS_RESPONSE(b)) { - header_len += (apr_off_t)response_length_estimate(b->data); - } - if (AP_BUCKET_IS_HEADERS(b)) { - header_len += (apr_off_t)headers_length_estimate(b->data); - } -#else - if (H2_BUCKET_IS_HEADERS(b)) { - header_len += (apr_off_t)h2_bucket_headers_headers_length(b); - } -#endif /* AP_HAS_RESPONSE_BUCKETS */ - } - } - rv = h2_beam_send(conn_ctx->beam_out, c2, bb, APR_BLOCK_READ, &written); - if (APR_STATUS_IS_EAGAIN(rv)) { rv = APR_SUCCESS; } - if (written && h2_c_logio_add_bytes_out) { - h2_c_logio_add_bytes_out(c2, written + header_len); - } return rv; } @@ -403,30 +403,56 @@ static apr_status_t h2_c2_filter_out(ap_filter_t* f, apr_bucket_brigade* bb) return rv; } -static void check_push(request_rec *r, const char *tag) +static int addn_headers(void *udata, const char *name, const char *value) { - apr_array_header_t *push_list = h2_config_push_list(r); + apr_table_t *dest = udata; + apr_table_addn(dest, name, value); + return 1; +} - if (!r->expecting_100 && push_list && push_list->nelts > 0) { - int i, old_status; - const char *old_line; +static void check_early_hints(request_rec *r, const char *tag) +{ + apr_array_header_t *push_list = h2_config_push_list(r); + apr_table_t *early_headers = h2_config_early_headers(r); + + if (!r->expecting_100 && + ((push_list && push_list->nelts > 0) || + (early_headers && !apr_is_empty_table(early_headers)))) { + int have_hints = 0, i; + + if (push_list && push_list->nelts > 0) { + ap_log_rerror(APLOG_MARK, APLOG_TRACE1, 0, r, + "%s, early announcing %d resources for push", + tag, push_list->nelts); + for (i = 0; i < push_list->nelts; ++i) { + h2_push_res *push = &APR_ARRAY_IDX(push_list, i, h2_push_res); + apr_table_add(r->headers_out, "Link", + apr_psprintf(r->pool, "<%s>; rel=preload%s", + push->uri_ref, push->critical? "; critical" : "")); + } + have_hints = 1; + } + if (early_headers && !apr_is_empty_table(early_headers)) { + apr_table_do(addn_headers, r->headers_out, early_headers, NULL); + have_hints = 1; + } - ap_log_rerror(APLOG_MARK, APLOG_TRACE1, 0, r, - "%s, early announcing %d resources for push", - tag, push_list->nelts); - for (i = 0; i < push_list->nelts; ++i) { - h2_push_res *push = &APR_ARRAY_IDX(push_list, i, h2_push_res); - apr_table_add(r->headers_out, "Link", - apr_psprintf(r->pool, "<%s>; rel=preload%s", - push->uri_ref, push->critical? "; critical" : "")); + if (have_hints) { + int old_status; + const char *old_line; + + if (h2_config_rgeti(r, H2_CONF_PUSH) == 0 && + h2_config_sgeti(r->server, H2_CONF_PUSH) != 0) { + apr_table_setn(r->connection->notes, H2_PUSH_MODE_NOTE, "0"); + } + old_status = r->status; + old_line = r->status_line; + r->status = 103; + r->status_line = "103 Early Hints"; + ap_send_interim_response(r, 1); + r->status = old_status; + r->status_line = old_line; } - old_status = r->status; - old_line = r->status_line; - r->status = 103; - r->status_line = "103 Early Hints"; - ap_send_interim_response(r, 1); - r->status = old_status; - r->status_line = old_line; } } @@ -439,11 +465,42 @@ static int c2_hook_fixups(request_rec *r) return DECLINED; } - check_push(r, "late_fixup"); + check_early_hints(r, "late_fixup"); return DECLINED; } +static apr_status_t http2_get_pollfd_from_conn(conn_rec *c, + struct apr_pollfd_t *pfd, + apr_interval_time_t *ptimeout) +{ +#if H2_USE_PIPES + if (c->master) { + h2_conn_ctx_t *ctx = h2_conn_ctx_get(c); + if (ctx) { + if (ctx->beam_in && ctx->pipe_in[H2_PIPE_OUT]) { + pfd->desc_type = APR_POLL_FILE; + pfd->desc.f = ctx->pipe_in[H2_PIPE_OUT]; + if (ptimeout) + *ptimeout = h2_beam_timeout_get(ctx->beam_in); + } + else { + /* no input */ + pfd->desc_type = APR_NO_DESC; + if (ptimeout) + *ptimeout = -1; + } + return APR_SUCCESS; + } + } +#else + (void)c; + (void)pfd; + (void)ptimeout; +#endif /* H2_USE_PIPES */ + return APR_ENOTIMPL; +} + #if AP_HAS_RESPONSE_BUCKETS static void c2_pre_read_request(request_rec *r, conn_rec *c2) @@ -545,8 +602,14 @@ void h2_c2_register_hooks(void) /* We need to manipulate the standard HTTP/1.1 protocol filters and * install our own. This needs to be done very early. */ ap_hook_pre_read_request(c2_pre_read_request, NULL, NULL, APR_HOOK_MIDDLE); - ap_hook_post_read_request(c2_post_read_request, NULL, NULL, APR_HOOK_REALLY_FIRST); + ap_hook_post_read_request(c2_post_read_request, NULL, NULL, + APR_HOOK_REALLY_FIRST); ap_hook_fixups(c2_hook_fixups, NULL, NULL, APR_HOOK_LAST); +#if H2_USE_POLLFD_FROM_CONN + ap_hook_get_pollfd_from_conn(http2_get_pollfd_from_conn, NULL, NULL, + APR_HOOK_MIDDLE); +#endif + APR_REGISTER_OPTIONAL_FN(http2_get_pollfd_from_conn); c2_net_in_filter_handle = ap_register_input_filter("H2_C2_NET_IN", h2_c2_filter_in, @@ -655,11 +718,21 @@ static apr_status_t c2_process(h2_conn_ctx_t *conn_ctx, conn_rec *c) { const h2_request *req = conn_ctx->request; conn_state_t *cs = c->cs; - request_rec *r; + request_rec *r = NULL; const char *tenc; apr_time_t timeout; + apr_status_t rv = APR_SUCCESS; + + if (req->protocol && !strcmp("websocket", req->protocol)) { + req = h2_ws_rewrite_request(req, c, conn_ctx->beam_in == NULL); + if (!req) { + rv = APR_EGENERAL; + goto cleanup; + } + } + + r = h2_create_request_rec(req, c, conn_ctx->beam_in == NULL); - r = h2_create_request_rec(conn_ctx->request, c, conn_ctx->beam_in == NULL); if (!r) { ap_log_cerror(APLOG_MARK, APLOG_TRACE1, 0, c, "h2_c2(%s-%d): create request_rec failed, r=NULL", @@ -722,7 +795,7 @@ static apr_status_t c2_process(h2_conn_ctx_t *conn_ctx, conn_rec *c) cs->state = CONN_STATE_WRITE_COMPLETION; cleanup: - return APR_SUCCESS; + return rv; } conn_rec *h2_c2_create(conn_rec *c1, apr_pool_t *parent, @@ -793,7 +866,7 @@ static int h2_c2_hook_post_read_request(request_rec *r) { h2_conn_ctx_t *conn_ctx = h2_conn_ctx_get(r->connection); - if (conn_ctx && conn_ctx->stream_id) { + if (conn_ctx && conn_ctx->stream_id && ap_is_initial_req(r)) { ap_log_rerror(APLOG_MARK, APLOG_TRACE3, 0, r, "h2_c2(%s-%d): adding request filters", @@ -845,6 +918,11 @@ void h2_c2_register_hooks(void) * install our own. This needs to be done very early. */ ap_hook_post_read_request(h2_c2_hook_post_read_request, NULL, NULL, APR_HOOK_REALLY_FIRST); ap_hook_fixups(c2_hook_fixups, NULL, NULL, APR_HOOK_LAST); +#if H2_USE_POLLFD_FROM_CONN + ap_hook_get_pollfd_from_conn(http2_get_pollfd_from_conn, NULL, NULL, + APR_HOOK_MIDDLE); +#endif + APR_REGISTER_OPTIONAL_FN(http2_get_pollfd_from_conn); ap_register_input_filter("H2_C2_NET_IN", h2_c2_filter_in, NULL, AP_FTYPE_NETWORK); |