| /* Copyright 2015 greenbytes GmbH (https://www.greenbytes.de) |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #include <assert.h> |
| #include <stddef.h> |
| |
| #include <httpd.h> |
| #include <http_core.h> |
| #include <http_connection.h> |
| #include <http_log.h> |
| |
| #include <nghttp2/nghttp2.h> |
| |
| #include "h2_private.h" |
| #include "h2.h" |
| #include "h2_bucket_beam.h" |
| #include "h2_conn.h" |
| #include "h2_config.h" |
| #include "h2_h2.h" |
| #include "h2_filter.h" |
| #include "h2_mplx.h" |
| #include "h2_push.h" |
| #include "h2_request.h" |
| #include "h2_response.h" |
| #include "h2_session.h" |
| #include "h2_stream.h" |
| #include "h2_task.h" |
| #include "h2_ctx.h" |
| #include "h2_task.h" |
| #include "h2_util.h" |
| |
| |
| static int state_transition[][7] = { |
| /* ID OP RL RR CI CO CL */ |
| /*ID*/{ 1, 0, 0, 0, 0, 0, 0 }, |
| /*OP*/{ 1, 1, 0, 0, 0, 0, 0 }, |
| /*RL*/{ 0, 0, 1, 0, 0, 0, 0 }, |
| /*RR*/{ 0, 0, 0, 1, 0, 0, 0 }, |
| /*CI*/{ 1, 1, 0, 0, 1, 0, 0 }, |
| /*CO*/{ 1, 1, 0, 0, 0, 1, 0 }, |
| /*CL*/{ 1, 1, 0, 0, 1, 1, 1 }, |
| }; |
| |
| static void H2_STREAM_OUT_LOG(int lvl, h2_stream *s, char *tag) |
| { |
| if (APLOG_C_IS_LEVEL(s->session->c, lvl)) { |
| conn_rec *c = s->session->c; |
| char buffer[4 * 1024]; |
| const char *line = "(null)"; |
| apr_size_t len, bmax = sizeof(buffer)/sizeof(buffer[0]); |
| |
| len = h2_util_bb_print(buffer, bmax, tag, "", s->buffer); |
| ap_log_cerror(APLOG_MARK, lvl, 0, c, "bb_dump(%ld-%d): %s", |
| c->id, s->id, len? buffer : line); |
| } |
| } |
| |
| static int set_state(h2_stream *stream, h2_stream_state_t state) |
| { |
| int allowed = state_transition[state][stream->state]; |
| if (allowed) { |
| stream->state = state; |
| return 1; |
| } |
| |
| ap_log_cerror(APLOG_MARK, APLOG_WARNING, 0, stream->session->c, APLOGNO(03081) |
| "h2_stream(%ld-%d): invalid state transition from %d to %d", |
| stream->session->id, stream->id, stream->state, state); |
| return 0; |
| } |
| |
| static int close_input(h2_stream *stream) |
| { |
| switch (stream->state) { |
| case H2_STREAM_ST_CLOSED_INPUT: |
| case H2_STREAM_ST_CLOSED: |
| return 0; /* ignore, idempotent */ |
| case H2_STREAM_ST_CLOSED_OUTPUT: |
| /* both closed now */ |
| set_state(stream, H2_STREAM_ST_CLOSED); |
| break; |
| default: |
| /* everything else we jump to here */ |
| set_state(stream, H2_STREAM_ST_CLOSED_INPUT); |
| break; |
| } |
| return 1; |
| } |
| |
| static int input_closed(h2_stream *stream) |
| { |
| switch (stream->state) { |
| case H2_STREAM_ST_OPEN: |
| case H2_STREAM_ST_CLOSED_OUTPUT: |
| return 0; |
| default: |
| return 1; |
| } |
| } |
| |
| static int close_output(h2_stream *stream) |
| { |
| switch (stream->state) { |
| case H2_STREAM_ST_CLOSED_OUTPUT: |
| case H2_STREAM_ST_CLOSED: |
| return 0; /* ignore, idempotent */ |
| case H2_STREAM_ST_CLOSED_INPUT: |
| /* both closed now */ |
| set_state(stream, H2_STREAM_ST_CLOSED); |
| break; |
| default: |
| /* everything else we jump to here */ |
| set_state(stream, H2_STREAM_ST_CLOSED_OUTPUT); |
| break; |
| } |
| return 1; |
| } |
| |
| static int input_open(const h2_stream *stream) |
| { |
| switch (stream->state) { |
| case H2_STREAM_ST_OPEN: |
| case H2_STREAM_ST_CLOSED_OUTPUT: |
| return 1; |
| default: |
| return 0; |
| } |
| } |
| |
| static int output_open(h2_stream *stream) |
| { |
| switch (stream->state) { |
| case H2_STREAM_ST_OPEN: |
| case H2_STREAM_ST_CLOSED_INPUT: |
| return 1; |
| default: |
| return 0; |
| } |
| } |
| |
| static apr_status_t stream_pool_cleanup(void *ctx) |
| { |
| h2_stream *stream = ctx; |
| apr_status_t status; |
| |
| if (stream->input) { |
| h2_beam_destroy(stream->input); |
| stream->input = NULL; |
| } |
| if (stream->files) { |
| apr_file_t *file; |
| int i; |
| for (i = 0; i < stream->files->nelts; ++i) { |
| file = APR_ARRAY_IDX(stream->files, i, apr_file_t*); |
| status = apr_file_close(file); |
| ap_log_cerror(APLOG_MARK, APLOG_TRACE3, status, stream->session->c, |
| "h2_stream(%ld-%d): destroy, closed file %d", |
| stream->session->id, stream->id, i); |
| } |
| stream->files = NULL; |
| } |
| return APR_SUCCESS; |
| } |
| |
| h2_stream *h2_stream_open(int id, apr_pool_t *pool, h2_session *session, |
| int initiated_on, const h2_request *creq) |
| { |
| h2_request *req; |
| h2_stream *stream = apr_pcalloc(pool, sizeof(h2_stream)); |
| |
| stream->id = id; |
| stream->state = H2_STREAM_ST_IDLE; |
| stream->pool = pool; |
| stream->session = session; |
| set_state(stream, H2_STREAM_ST_OPEN); |
| |
| if (creq) { |
| /* take it into out pool and assure correct id's */ |
| req = h2_request_clone(pool, creq); |
| req->id = id; |
| req->initiated_on = initiated_on; |
| } |
| else { |
| req = h2_req_create(id, pool, |
| h2_config_geti(session->config, H2_CONF_SER_HEADERS)); |
| } |
| stream->request = req; |
| |
| apr_pool_cleanup_register(pool, stream, stream_pool_cleanup, |
| apr_pool_cleanup_null); |
| ap_log_cerror(APLOG_MARK, APLOG_DEBUG, 0, session->c, APLOGNO(03082) |
| "h2_stream(%ld-%d): opened", session->id, stream->id); |
| return stream; |
| } |
| |
| void h2_stream_cleanup(h2_stream *stream) |
| { |
| AP_DEBUG_ASSERT(stream); |
| if (stream->buffer) { |
| apr_brigade_cleanup(stream->buffer); |
| } |
| if (stream->input) { |
| apr_status_t status; |
| status = h2_beam_shutdown(stream->input, APR_NONBLOCK_READ, 1); |
| if (status == APR_EAGAIN) { |
| ap_log_cerror(APLOG_MARK, APLOG_TRACE2, 0, stream->session->c, |
| "h2_stream(%ld-%d): wait on input shutdown", |
| stream->session->id, stream->id); |
| status = h2_beam_shutdown(stream->input, APR_BLOCK_READ, 1); |
| ap_log_cerror(APLOG_MARK, APLOG_TRACE2, status, stream->session->c, |
| "h2_stream(%ld-%d): input shutdown returned", |
| stream->session->id, stream->id); |
| } |
| } |
| } |
| |
| void h2_stream_destroy(h2_stream *stream) |
| { |
| AP_DEBUG_ASSERT(stream); |
| ap_log_cerror(APLOG_MARK, APLOG_TRACE3, 0, stream->session->c, |
| "h2_stream(%ld-%d): destroy", |
| stream->session->id, stream->id); |
| if (stream->pool) { |
| apr_pool_destroy(stream->pool); |
| } |
| } |
| |
| void h2_stream_eos_destroy(h2_stream *stream) |
| { |
| h2_session_stream_done(stream->session, stream); |
| /* stream possibly destroyed */ |
| } |
| |
| apr_pool_t *h2_stream_detach_pool(h2_stream *stream) |
| { |
| apr_pool_t *pool = stream->pool; |
| stream->pool = NULL; |
| return pool; |
| } |
| |
| void h2_stream_rst(h2_stream *stream, int error_code) |
| { |
| stream->rst_error = error_code; |
| close_input(stream); |
| close_output(stream); |
| ap_log_cerror(APLOG_MARK, APLOG_TRACE1, 0, stream->session->c, |
| "h2_stream(%ld-%d): reset, error=%d", |
| stream->session->id, stream->id, error_code); |
| } |
| |
| struct h2_response *h2_stream_get_response(h2_stream *stream) |
| { |
| return stream->response; |
| } |
| |
| apr_status_t h2_stream_set_request(h2_stream *stream, request_rec *r) |
| { |
| apr_status_t status; |
| AP_DEBUG_ASSERT(stream); |
| if (stream->rst_error) { |
| return APR_ECONNRESET; |
| } |
| set_state(stream, H2_STREAM_ST_OPEN); |
| status = h2_request_rwrite(stream->request, stream->pool, r); |
| stream->request->serialize = h2_config_geti(h2_config_sget(r->server), |
| H2_CONF_SER_HEADERS); |
| ap_log_rerror(APLOG_MARK, APLOG_DEBUG, status, r, APLOGNO(03058) |
| "h2_request(%d): rwrite %s host=%s://%s%s", |
| stream->request->id, stream->request->method, |
| stream->request->scheme, stream->request->authority, |
| stream->request->path); |
| |
| return status; |
| } |
| |
| apr_status_t h2_stream_add_header(h2_stream *stream, |
| const char *name, size_t nlen, |
| const char *value, size_t vlen) |
| { |
| AP_DEBUG_ASSERT(stream); |
| if (!stream->response) { |
| if (name[0] == ':') { |
| if ((vlen) > stream->session->s->limit_req_line) { |
| /* pseudo header: approximation of request line size check */ |
| ap_log_cerror(APLOG_MARK, APLOG_TRACE1, 0, stream->session->c, |
| "h2_stream(%ld-%d): pseudo header %s too long", |
| stream->session->id, stream->id, name); |
| return h2_stream_set_error(stream, |
| HTTP_REQUEST_URI_TOO_LARGE); |
| } |
| } |
| else if ((nlen + 2 + vlen) > stream->session->s->limit_req_fieldsize) { |
| /* header too long */ |
| ap_log_cerror(APLOG_MARK, APLOG_TRACE1, 0, stream->session->c, |
| "h2_stream(%ld-%d): header %s too long", |
| stream->session->id, stream->id, name); |
| return h2_stream_set_error(stream, |
| HTTP_REQUEST_HEADER_FIELDS_TOO_LARGE); |
| } |
| |
| if (name[0] != ':') { |
| ++stream->request_headers_added; |
| if (stream->request_headers_added |
| > stream->session->s->limit_req_fields) { |
| /* too many header lines */ |
| ap_log_cerror(APLOG_MARK, APLOG_TRACE1, 0, stream->session->c, |
| "h2_stream(%ld-%d): too many header lines", |
| stream->session->id, stream->id); |
| return h2_stream_set_error(stream, |
| HTTP_REQUEST_HEADER_FIELDS_TOO_LARGE); |
| } |
| } |
| } |
| |
| if (h2_stream_is_scheduled(stream)) { |
| return h2_request_add_trailer(stream->request, stream->pool, |
| name, nlen, value, vlen); |
| } |
| else { |
| if (!input_open(stream)) { |
| return APR_ECONNRESET; |
| } |
| return h2_request_add_header(stream->request, stream->pool, |
| name, nlen, value, vlen); |
| } |
| } |
| |
| apr_status_t h2_stream_schedule(h2_stream *stream, int eos, int push_enabled, |
| h2_stream_pri_cmp *cmp, void *ctx) |
| { |
| apr_status_t status; |
| AP_DEBUG_ASSERT(stream); |
| AP_DEBUG_ASSERT(stream->session); |
| AP_DEBUG_ASSERT(stream->session->mplx); |
| |
| if (!output_open(stream)) { |
| return APR_ECONNRESET; |
| } |
| if (stream->scheduled) { |
| return APR_EINVAL; |
| } |
| if (eos) { |
| close_input(stream); |
| } |
| |
| if (stream->response) { |
| /* already have a resonse, probably a HTTP error code */ |
| return h2_mplx_process(stream->session->mplx, stream, cmp, ctx); |
| } |
| |
| /* Seeing the end-of-headers, we have everything we need to |
| * start processing it. |
| */ |
| status = h2_request_end_headers(stream->request, stream->pool, |
| eos, push_enabled); |
| if (status == APR_SUCCESS) { |
| stream->request->body = !eos; |
| stream->scheduled = 1; |
| stream->input_remaining = stream->request->content_length; |
| |
| status = h2_mplx_process(stream->session->mplx, stream, cmp, ctx); |
| ap_log_cerror(APLOG_MARK, APLOG_TRACE1, 0, stream->session->c, |
| "h2_stream(%ld-%d): scheduled %s %s://%s%s", |
| stream->session->id, stream->id, |
| stream->request->method, stream->request->scheme, |
| stream->request->authority, stream->request->path); |
| } |
| else { |
| h2_stream_rst(stream, H2_ERR_INTERNAL_ERROR); |
| ap_log_cerror(APLOG_MARK, APLOG_TRACE1, status, stream->session->c, |
| "h2_stream(%ld-%d): RST=2 (internal err) %s %s://%s%s", |
| stream->session->id, stream->id, |
| stream->request->method, stream->request->scheme, |
| stream->request->authority, stream->request->path); |
| } |
| |
| return status; |
| } |
| |
| int h2_stream_is_scheduled(const h2_stream *stream) |
| { |
| return stream->scheduled; |
| } |
| |
| apr_status_t h2_stream_close_input(h2_stream *stream) |
| { |
| apr_status_t status = APR_SUCCESS; |
| |
| AP_DEBUG_ASSERT(stream); |
| ap_log_cerror(APLOG_MARK, APLOG_TRACE1, 0, stream->session->c, |
| "h2_stream(%ld-%d): closing input", |
| stream->session->id, stream->id); |
| |
| if (stream->rst_error) { |
| return APR_ECONNRESET; |
| } |
| |
| if (close_input(stream) && stream->input) { |
| status = h2_beam_close(stream->input); |
| } |
| return status; |
| } |
| |
| apr_status_t h2_stream_write_data(h2_stream *stream, |
| const char *data, size_t len, int eos) |
| { |
| conn_rec *c = stream->session->c; |
| apr_status_t status = APR_SUCCESS; |
| |
| AP_DEBUG_ASSERT(stream); |
| if (!stream->input) { |
| return APR_EOF; |
| } |
| if (input_closed(stream) || !stream->request->eoh) { |
| ap_log_cerror(APLOG_MARK, APLOG_TRACE1, 0, c, |
| "h2_stream(%ld-%d): writing denied, closed=%d, eoh=%d", |
| stream->session->id, stream->id, input_closed(stream), |
| stream->request->eoh); |
| return APR_EINVAL; |
| } |
| |
| ap_log_cerror(APLOG_MARK, APLOG_TRACE1, 0, c, |
| "h2_stream(%ld-%d): add %ld input bytes", |
| stream->session->id, stream->id, (long)len); |
| |
| if (!stream->request->chunked) { |
| stream->input_remaining -= len; |
| if (stream->input_remaining < 0) { |
| ap_log_cerror(APLOG_MARK, APLOG_WARNING, 0, c, |
| APLOGNO(02961) |
| "h2_stream(%ld-%d): got %ld more content bytes than announced " |
| "in content-length header: %ld", |
| stream->session->id, stream->id, |
| (long)stream->request->content_length, |
| -(long)stream->input_remaining); |
| h2_stream_rst(stream, H2_ERR_PROTOCOL_ERROR); |
| return APR_ECONNABORTED; |
| } |
| } |
| |
| if (!stream->tmp) { |
| stream->tmp = apr_brigade_create(stream->pool, c->bucket_alloc); |
| } |
| apr_brigade_write(stream->tmp, NULL, NULL, data, len); |
| if (eos) { |
| APR_BRIGADE_INSERT_TAIL(stream->tmp, |
| apr_bucket_eos_create(c->bucket_alloc)); |
| close_input(stream); |
| } |
| |
| status = h2_beam_send(stream->input, stream->tmp, APR_BLOCK_READ); |
| apr_brigade_cleanup(stream->tmp); |
| stream->in_data_frames++; |
| stream->in_data_octets += len; |
| |
| return status; |
| } |
| |
| void h2_stream_set_suspended(h2_stream *stream, int suspended) |
| { |
| AP_DEBUG_ASSERT(stream); |
| stream->suspended = !!suspended; |
| ap_log_cerror(APLOG_MARK, APLOG_TRACE2, 0, stream->session->c, |
| "h2_stream(%ld-%d): suspended=%d", |
| stream->session->id, stream->id, stream->suspended); |
| } |
| |
| int h2_stream_is_suspended(const h2_stream *stream) |
| { |
| AP_DEBUG_ASSERT(stream); |
| return stream->suspended; |
| } |
| |
| static apr_status_t fill_buffer(h2_stream *stream, apr_size_t amount) |
| { |
| conn_rec *c = stream->session->c; |
| apr_bucket *b; |
| apr_status_t status; |
| |
| if (!stream->output) { |
| return APR_EOF; |
| } |
| status = h2_beam_receive(stream->output, stream->buffer, |
| APR_NONBLOCK_READ, amount); |
| /* The buckets we reveive are using the stream->buffer pool as |
| * lifetime which is exactly what we want since this is stream->pool. |
| * |
| * However: when we send these buckets down the core output filters, the |
| * filter might decide to setaside them into a pool of its own. And it |
| * might decide, after having sent the buckets, to clear its pool. |
| * |
| * This is problematic for file buckets because it then closed the contained |
| * file. Any split off buckets we sent afterwards will result in a |
| * APR_EBADF. |
| */ |
| for (b = APR_BRIGADE_FIRST(stream->buffer); |
| b != APR_BRIGADE_SENTINEL(stream->buffer); |
| b = APR_BUCKET_NEXT(b)) { |
| if (APR_BUCKET_IS_FILE(b)) { |
| apr_bucket_file *f = (apr_bucket_file *)b->data; |
| apr_pool_t *fpool = apr_file_pool_get(f->fd); |
| if (fpool != c->pool) { |
| apr_bucket_setaside(b, c->pool); |
| if (!stream->files) { |
| stream->files = apr_array_make(stream->pool, |
| 5, sizeof(apr_file_t*)); |
| } |
| APR_ARRAY_PUSH(stream->files, apr_file_t*) = f->fd; |
| } |
| } |
| } |
| return status; |
| } |
| |
| apr_status_t h2_stream_set_response(h2_stream *stream, h2_response *response, |
| h2_bucket_beam *output) |
| { |
| apr_status_t status = APR_SUCCESS; |
| conn_rec *c = stream->session->c; |
| |
| if (!output_open(stream)) { |
| ap_log_cerror(APLOG_MARK, APLOG_TRACE1, 0, c, |
| "h2_stream(%ld-%d): output closed", |
| stream->session->id, stream->id); |
| return APR_ECONNRESET; |
| } |
| |
| stream->response = response; |
| stream->output = output; |
| stream->buffer = apr_brigade_create(stream->pool, c->bucket_alloc); |
| |
| h2_stream_filter(stream); |
| if (stream->output) { |
| status = fill_buffer(stream, 0); |
| } |
| ap_log_cerror(APLOG_MARK, APLOG_TRACE1, status, c, |
| "h2_stream(%ld-%d): set_response(%d)", |
| stream->session->id, stream->id, |
| stream->response->http_status); |
| return status; |
| } |
| |
| apr_status_t h2_stream_set_error(h2_stream *stream, int http_status) |
| { |
| h2_response *response; |
| |
| if (stream->submitted) { |
| return APR_EINVAL; |
| } |
| response = h2_response_die(stream->id, http_status, stream->request, |
| stream->pool); |
| return h2_stream_set_response(stream, response, NULL); |
| } |
| |
| static const apr_size_t DATA_CHUNK_SIZE = ((16*1024) - 100 - 9); |
| |
| apr_status_t h2_stream_out_prepare(h2_stream *stream, |
| apr_off_t *plen, int *peos) |
| { |
| conn_rec *c = stream->session->c; |
| apr_status_t status = APR_SUCCESS; |
| apr_off_t requested; |
| |
| if (stream->rst_error) { |
| *plen = 0; |
| *peos = 1; |
| return APR_ECONNRESET; |
| } |
| |
| if (*plen > 0) { |
| requested = H2MIN(*plen, DATA_CHUNK_SIZE); |
| } |
| else { |
| requested = DATA_CHUNK_SIZE; |
| } |
| *plen = requested; |
| |
| H2_STREAM_OUT_LOG(APLOG_TRACE2, stream, "h2_stream_out_prepare_pre"); |
| h2_util_bb_avail(stream->buffer, plen, peos); |
| if (!*peos && *plen < requested) { |
| /* try to get more data */ |
| status = fill_buffer(stream, (requested - *plen) + DATA_CHUNK_SIZE); |
| if (APR_STATUS_IS_EOF(status)) { |
| apr_bucket *eos = apr_bucket_eos_create(c->bucket_alloc); |
| APR_BRIGADE_INSERT_TAIL(stream->buffer, eos); |
| status = APR_SUCCESS; |
| } |
| else if (status == APR_EAGAIN) { |
| /* did not receive more, it's ok */ |
| status = APR_SUCCESS; |
| } |
| *plen = requested; |
| h2_util_bb_avail(stream->buffer, plen, peos); |
| } |
| H2_STREAM_OUT_LOG(APLOG_TRACE2, stream, "h2_stream_out_prepare_post"); |
| ap_log_cerror(APLOG_MARK, APLOG_TRACE1, status, c, |
| "h2_stream(%ld-%d): prepare, len=%ld eos=%d, trailers=%s", |
| c->id, stream->id, (long)*plen, *peos, |
| (stream->response && stream->response->trailers)? |
| "yes" : "no"); |
| if (!*peos && !*plen && status == APR_SUCCESS) { |
| return APR_EAGAIN; |
| } |
| return status; |
| } |
| |
| |
| apr_status_t h2_stream_read_to(h2_stream *stream, apr_bucket_brigade *bb, |
| apr_off_t *plen, int *peos) |
| { |
| conn_rec *c = stream->session->c; |
| apr_status_t status = APR_SUCCESS; |
| |
| if (stream->rst_error) { |
| return APR_ECONNRESET; |
| } |
| status = h2_append_brigade(bb, stream->buffer, plen, peos); |
| if (status == APR_SUCCESS && !*peos && !*plen) { |
| status = APR_EAGAIN; |
| } |
| ap_log_cerror(APLOG_MARK, APLOG_TRACE2, status, c, |
| "h2_stream(%ld-%d): read_to, len=%ld eos=%d", |
| c->id, stream->id, (long)*plen, *peos); |
| return status; |
| } |
| |
| |
| int h2_stream_input_is_open(const h2_stream *stream) |
| { |
| return input_open(stream); |
| } |
| |
| int h2_stream_needs_submit(const h2_stream *stream) |
| { |
| switch (stream->state) { |
| case H2_STREAM_ST_OPEN: |
| case H2_STREAM_ST_CLOSED_INPUT: |
| case H2_STREAM_ST_CLOSED_OUTPUT: |
| case H2_STREAM_ST_CLOSED: |
| return !stream->submitted; |
| default: |
| return 0; |
| } |
| } |
| |
| apr_status_t h2_stream_submit_pushes(h2_stream *stream) |
| { |
| apr_status_t status = APR_SUCCESS; |
| apr_array_header_t *pushes; |
| int i; |
| |
| pushes = h2_push_collect_update(stream, stream->request, |
| h2_stream_get_response(stream)); |
| if (pushes && !apr_is_empty_array(pushes)) { |
| ap_log_cerror(APLOG_MARK, APLOG_TRACE1, 0, stream->session->c, |
| "h2_stream(%ld-%d): found %d push candidates", |
| stream->session->id, stream->id, pushes->nelts); |
| for (i = 0; i < pushes->nelts; ++i) { |
| h2_push *push = APR_ARRAY_IDX(pushes, i, h2_push*); |
| h2_stream *s = h2_session_push(stream->session, stream, push); |
| if (!s) { |
| status = APR_ECONNRESET; |
| break; |
| } |
| } |
| } |
| return status; |
| } |
| |
| apr_table_t *h2_stream_get_trailers(h2_stream *stream) |
| { |
| return stream->response? stream->response->trailers : NULL; |
| } |
| |
| const h2_priority *h2_stream_get_priority(h2_stream *stream) |
| { |
| h2_response *response = h2_stream_get_response(stream); |
| |
| if (response && stream->request && stream->request->initiated_on) { |
| const char *ctype = apr_table_get(response->headers, "content-type"); |
| if (ctype) { |
| /* FIXME: Not good enough, config needs to come from request->server */ |
| return h2_config_get_priority(stream->session->config, ctype); |
| } |
| } |
| return NULL; |
| } |
| |
| const char *h2_stream_state_str(h2_stream *stream) |
| { |
| switch (stream->state) { |
| case H2_STREAM_ST_IDLE: |
| return "IDLE"; |
| case H2_STREAM_ST_OPEN: |
| return "OPEN"; |
| case H2_STREAM_ST_RESV_LOCAL: |
| return "RESERVED_LOCAL"; |
| case H2_STREAM_ST_RESV_REMOTE: |
| return "RESERVED_REMOTE"; |
| case H2_STREAM_ST_CLOSED_INPUT: |
| return "HALF_CLOSED_REMOTE"; |
| case H2_STREAM_ST_CLOSED_OUTPUT: |
| return "HALF_CLOSED_LOCAL"; |
| case H2_STREAM_ST_CLOSED: |
| return "CLOSED"; |
| default: |
| return "UNKNOWN"; |
| |
| } |
| } |
| |