1 files changed, 0 insertions, 410 deletions

diff --git a/debian/vendor-h2o/lib/http2/stream.c b/debian/vendor-h2o/lib/http2/stream.c
deleted file mode 100644
index 1dfe2c3..0000000
--- a/debian/vendor-h2o/lib/http2/stream.c
+++ /dev/null
@@ -1,410 +0,0 @@
-/*
- * Copyright (c) 2014 DeNA Co., Ltd.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to
- * deal in the Software without restriction, including without limitation the
- * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
- * sell copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
- * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
- * IN THE SOFTWARE.
- */
-#include "h2o.h"
-#include "h2o/http2.h"
-#include "h2o/http2_internal.h"
-
-static void finalostream_start_pull(h2o_ostream_t *self, h2o_ostream_pull_cb cb);
-static void finalostream_send(h2o_ostream_t *self, h2o_req_t *req, h2o_iovec_t *bufs, size_t bufcnt, h2o_send_state_t state);
-
-static size_t sz_min(size_t x, size_t y)
-{
-    return x < y ? x : y;
-}
-
-h2o_http2_stream_t *h2o_http2_stream_open(h2o_http2_conn_t *conn, uint32_t stream_id, h2o_req_t *src_req,
-                                          const h2o_http2_priority_t *received_priority)
-{
-    h2o_http2_stream_t *stream = h2o_mem_alloc(sizeof(*stream));
-
-    /* init properties (other than req) */
-    memset(stream, 0, offsetof(h2o_http2_stream_t, req));
-    stream->stream_id = stream_id;
-    stream->_ostr_final.do_send = finalostream_send;
-    stream->_ostr_final.start_pull = finalostream_start_pull;
-    stream->state = H2O_HTTP2_STREAM_STATE_IDLE;
-    h2o_http2_window_init(&stream->output_window, &conn->peer_settings);
-    h2o_http2_window_init(&stream->input_window, &H2O_HTTP2_SETTINGS_HOST);
-    stream->received_priority = *received_priority;
-    stream->_expected_content_length = SIZE_MAX;
-
-    /* init request */
-    h2o_init_request(&stream->req, &conn->super, src_req);
-    stream->req.version = 0x200;
-    if (src_req != NULL)
-        memset(&stream->req.upgrade, 0, sizeof(stream->req.upgrade));
-    stream->req._ostr_top = &stream->_ostr_final;
-
-    h2o_http2_conn_register_stream(conn, stream);
-
-    ++conn->num_streams.priority.open;
-    stream->_num_streams_slot = &conn->num_streams.priority;
-
-    return stream;
-}
-
-void h2o_http2_stream_close(h2o_http2_conn_t *conn, h2o_http2_stream_t *stream)
-{
-    h2o_http2_conn_unregister_stream(conn, stream);
-    if (stream->_req_body != NULL)
-        h2o_buffer_dispose(&stream->_req_body);
-    if (stream->cache_digests != NULL)
-        h2o_cache_digests_destroy(stream->cache_digests);
-    h2o_dispose_request(&stream->req);
-    if (stream->stream_id == 1 && conn->_http1_req_input != NULL)
-        h2o_buffer_dispose(&conn->_http1_req_input);
-    free(stream);
-}
-
-void h2o_http2_stream_reset(h2o_http2_conn_t *conn, h2o_http2_stream_t *stream)
-{
-    switch (stream->state) {
-    case H2O_HTTP2_STREAM_STATE_IDLE:
-    case H2O_HTTP2_STREAM_STATE_RECV_HEADERS:
-    case H2O_HTTP2_STREAM_STATE_RECV_BODY:
-    case H2O_HTTP2_STREAM_STATE_REQ_PENDING:
-        h2o_http2_stream_close(conn, stream);
-        break;
-    case H2O_HTTP2_STREAM_STATE_SEND_HEADERS:
-    case H2O_HTTP2_STREAM_STATE_SEND_BODY:
-    case H2O_HTTP2_STREAM_STATE_SEND_BODY_IS_FINAL:
-        h2o_http2_stream_set_state(conn, stream, H2O_HTTP2_STREAM_STATE_END_STREAM);
-    /* continues */
-    case H2O_HTTP2_STREAM_STATE_END_STREAM:
-        /* clear all the queued bufs, and close the connection in the callback */
-        stream->_data.size = 0;
-        if (h2o_linklist_is_linked(&stream->_refs.link)) {
-            /* will be closed in the callback */
-        } else {
-            h2o_http2_stream_close(conn, stream);
-        }
-        break;
-    }
-}
-
-static size_t calc_max_payload_size(h2o_http2_conn_t *conn, h2o_http2_stream_t *stream)
-{
-    ssize_t conn_max, stream_max;
-
-    if ((conn_max = h2o_http2_conn_get_buffer_window(conn)) <= 0)
-        return 0;
-    if ((stream_max = h2o_http2_window_get_window(&stream->output_window)) <= 0)
-        return 0;
-    return sz_min(sz_min(conn_max, stream_max), conn->peer_settings.max_frame_size);
-}
-
-static void commit_data_header(h2o_http2_conn_t *conn, h2o_http2_stream_t *stream, h2o_buffer_t **outbuf, size_t length,
-                               h2o_send_state_t send_state)
-{
-    assert(outbuf != NULL);
-    /* send a DATA frame if there's data or the END_STREAM flag to send */
-    if (length || send_state == H2O_SEND_STATE_FINAL) {
-        h2o_http2_encode_frame_header((void *)((*outbuf)->bytes + (*outbuf)->size), length, H2O_HTTP2_FRAME_TYPE_DATA,
-                                      send_state == H2O_SEND_STATE_FINAL ? H2O_HTTP2_FRAME_FLAG_END_STREAM : 0, stream->stream_id);
-        h2o_http2_window_consume_window(&conn->_write.window, length);
-        h2o_http2_window_consume_window(&stream->output_window, length);
-        (*outbuf)->size += length + H2O_HTTP2_FRAME_HEADER_SIZE;
-        stream->req.bytes_sent += length;
-    }
-    /* send a RST_STREAM if there's an error */
-    if (send_state == H2O_SEND_STATE_ERROR) {
-        h2o_http2_encode_rst_stream_frame(outbuf, stream->stream_id, -H2O_HTTP2_ERROR_PROTOCOL);
-    }
-}
-
-static h2o_send_state_t send_data_pull(h2o_http2_conn_t *conn, h2o_http2_stream_t *stream)
-{
-    size_t max_payload_size;
-    h2o_iovec_t cbuf;
-    h2o_send_state_t send_state = H2O_SEND_STATE_IN_PROGRESS;
-
-    if ((max_payload_size = calc_max_payload_size(conn, stream)) == 0)
-        goto Exit;
-    /* reserve buffer */
-    h2o_buffer_reserve(&conn->_write.buf, H2O_HTTP2_FRAME_HEADER_SIZE + max_payload_size);
-    /* obtain content */
-    cbuf.base = conn->_write.buf->bytes + conn->_write.buf->size + H2O_HTTP2_FRAME_HEADER_SIZE;
-    cbuf.len = max_payload_size;
-    send_state = h2o_pull(&stream->req, stream->_pull_cb, &cbuf);
-    /* write the header */
-    commit_data_header(conn, stream, &conn->_write.buf, cbuf.len, send_state);
-
-Exit:
-    return send_state;
-}
-
-static h2o_iovec_t *send_data_push(h2o_http2_conn_t *conn, h2o_http2_stream_t *stream, h2o_iovec_t *bufs, size_t bufcnt,
-                                   h2o_send_state_t send_state)
-{
-    h2o_iovec_t dst;
-    size_t max_payload_size;
-
-    if ((max_payload_size = calc_max_payload_size(conn, stream)) == 0)
-        goto Exit;
-
-    /* reserve buffer and point dst to the payload */
-    dst.base =
-        h2o_buffer_reserve(&conn->_write.buf, H2O_HTTP2_FRAME_HEADER_SIZE + max_payload_size).base + H2O_HTTP2_FRAME_HEADER_SIZE;
-    dst.len = max_payload_size;
-
-    /* emit data */
-    while (bufcnt != 0) {
-        if (bufs->len != 0)
-            break;
-        ++bufs;
-        --bufcnt;
-    }
-    while (bufcnt != 0) {
-        size_t fill_size = sz_min(dst.len, bufs->len);
-        memcpy(dst.base, bufs->base, fill_size);
-        dst.base += fill_size;
-        dst.len -= fill_size;
-        bufs->base += fill_size;
-        bufs->len -= fill_size;
-        while (bufs->len == 0) {
-            ++bufs;
-            --bufcnt;
-            if (bufcnt == 0)
-                break;
-        }
-        if (dst.len == 0)
-            break;
-    }
-
-    /* commit the DATA frame if we have actually emitted payload */
-    if (dst.len != max_payload_size || !h2o_send_state_is_in_progress(send_state)) {
-        size_t payload_len = max_payload_size - dst.len;
-        if (bufcnt != 0) {
-            send_state = H2O_SEND_STATE_IN_PROGRESS;
-        }
-        commit_data_header(conn, stream, &conn->_write.buf, payload_len, send_state);
-    }
-
-Exit:
-    return bufs;
-}
-
-static int is_blocking_asset(h2o_req_t *req)
-{
-    if (req->res.mime_attr == NULL)
-        h2o_req_fill_mime_attributes(req);
-    return req->res.mime_attr->priority == H2O_MIME_ATTRIBUTE_PRIORITY_HIGHEST;
-}
-
-static int send_headers(h2o_http2_conn_t *conn, h2o_http2_stream_t *stream)
-{
-    h2o_timestamp_t ts;
-
-    h2o_get_timestamp(conn->super.ctx, &stream->req.pool, &ts);
-
-    /* cancel push with an error response */
-    if (h2o_http2_stream_is_push(stream->stream_id)) {
-        if (400 <= stream->req.res.status)
-            goto CancelPush;
-        if (stream->cache_digests != NULL) {
-            ssize_t etag_index = h2o_find_header(&stream->req.headers, H2O_TOKEN_ETAG, -1);
-            if (etag_index != -1) {
-                h2o_iovec_t url = h2o_concat(&stream->req.pool, stream->req.input.scheme->name, h2o_iovec_init(H2O_STRLIT("://")),
-                                             stream->req.input.authority, stream->req.input.path);
-                h2o_iovec_t *etag = &stream->req.headers.entries[etag_index].value;
-                if (h2o_cache_digests_lookup_by_url_and_etag(stream->cache_digests, url.base, url.len, etag->base, etag->len) ==
-                    H2O_CACHE_DIGESTS_STATE_FRESH)
-                    goto CancelPush;
-            }
-        }
-    }
-
-    /* reset casper cookie in case cache-digests exist */
-    if (stream->cache_digests != NULL && stream->req.hostconf->http2.casper.capacity_bits != 0) {
-        h2o_add_header(&stream->req.pool, &stream->req.res.headers, H2O_TOKEN_SET_COOKIE, NULL,
-                       H2O_STRLIT("h2o_casper=; Path=/; Expires=Sat, 01 Jan 2000 00:00:00 GMT"));
-    }
-
-    /* CASPER */
-    if (conn->casper != NULL) {
-        /* update casper if necessary */
-        if (stream->req.hostconf->http2.casper.track_all_types || is_blocking_asset(&stream->req)) {
-            if (h2o_http2_casper_lookup(conn->casper, stream->req.path.base, stream->req.path.len, 1)) {
-                /* cancel if the pushed resource is already marked as cached */
-                if (h2o_http2_stream_is_push(stream->stream_id))
-                    goto CancelPush;
-            }
-        }
-        if (stream->cache_digests != NULL)
-            goto SkipCookie;
-        /* browsers might ignore push responses, or they may process the responses in a different order than they were pushed.
-         * Therefore H2O tries to include casper cookie only in the last stream that may be received by the client, or when the
-         * value become stable; see also: https://github.com/h2o/h2o/issues/421
-         */
-        if (h2o_http2_stream_is_push(stream->stream_id)) {
-            if (!(conn->num_streams.pull.open == 0 && (conn->num_streams.push.half_closed - conn->num_streams.push.send_body) == 1))
-                goto SkipCookie;
-        } else {
-            if (conn->num_streams.push.half_closed - conn->num_streams.push.send_body != 0)
-                goto SkipCookie;
-        }
-        h2o_iovec_t cookie = h2o_http2_casper_get_cookie(conn->casper);
-        h2o_add_header(&stream->req.pool, &stream->req.res.headers, H2O_TOKEN_SET_COOKIE, NULL, cookie.base, cookie.len);
-    SkipCookie:;
-    }
-
-    if (h2o_http2_stream_is_push(stream->stream_id)) {
-        /* for push, send the push promise */
-        if (!stream->push.promise_sent)
-            h2o_http2_stream_send_push_promise(conn, stream);
-        /* send ASAP if it is a blocking asset (even in case of Firefox we can't wait 1RTT for it to reprioritize the asset) */
-        if (is_blocking_asset(&stream->req))
-            h2o_http2_scheduler_rebind(&stream->_refs.scheduler, &conn->scheduler, 257, 0);
-    } else {
-        /* raise the priority of asset files that block rendering to highest if the user-agent is _not_ using dependency-based
-         * prioritization (e.g. that of Firefox)
-         */
-        if (conn->num_streams.priority.open == 0 && stream->req.hostconf->http2.reprioritize_blocking_assets &&
-            h2o_http2_scheduler_get_parent(&stream->_refs.scheduler) == &conn->scheduler && is_blocking_asset(&stream->req))
-            h2o_http2_scheduler_rebind(&stream->_refs.scheduler, &conn->scheduler, 257, 0);
-    }
-
-    /* send HEADERS, as well as start sending body */
-    if (h2o_http2_stream_is_push(stream->stream_id))
-        h2o_add_header_by_str(&stream->req.pool, &stream->req.res.headers, H2O_STRLIT("x-http2-push"), 0, NULL,
-                              H2O_STRLIT("pushed"));
-    h2o_hpack_flatten_response(&conn->_write.buf, &conn->_output_header_table, stream->stream_id,
-                               conn->peer_settings.max_frame_size, &stream->req.res, &ts, &conn->super.ctx->globalconf->server_name,
-                               stream->req.res.content_length);
-    h2o_http2_conn_request_write(conn);
-    h2o_http2_stream_set_state(conn, stream, H2O_HTTP2_STREAM_STATE_SEND_BODY);
-
-    return 0;
-
-CancelPush:
-    h2o_add_header_by_str(&stream->req.pool, &stream->req.res.headers, H2O_STRLIT("x-http2-push"), 0, NULL,
-                          H2O_STRLIT("cancelled"));
-    h2o_http2_stream_set_state(conn, stream, H2O_HTTP2_STREAM_STATE_END_STREAM);
-    h2o_linklist_insert(&conn->_write.streams_to_proceed, &stream->_refs.link);
-    if (stream->push.promise_sent) {
-        h2o_http2_encode_rst_stream_frame(&conn->_write.buf, stream->stream_id, -H2O_HTTP2_ERROR_INTERNAL);
-        h2o_http2_conn_request_write(conn);
-    }
-    return -1;
-}
-
-void finalostream_start_pull(h2o_ostream_t *self, h2o_ostream_pull_cb cb)
-{
-    h2o_http2_stream_t *stream = H2O_STRUCT_FROM_MEMBER(h2o_http2_stream_t, _ostr_final, self);
-    h2o_http2_conn_t *conn = (void *)stream->req.conn;
-
-    assert(stream->req._ostr_top == &stream->_ostr_final);
-    assert(stream->state == H2O_HTTP2_STREAM_STATE_SEND_HEADERS);
-
-    /* register the pull callback */
-    stream->_pull_cb = cb;
-
-    /* send headers */
-    if (send_headers(conn, stream) != 0)
-        return;
-
-    /* set dummy data in the send buffer */
-    h2o_vector_reserve(&stream->req.pool, &stream->_data, 1);
-    stream->_data.entries[0].base = "<pull interface>";
-    stream->_data.entries[0].len = 1;
-    stream->_data.size = 1;
-
-    h2o_http2_conn_register_for_proceed_callback(conn, stream);
-}
-
-void finalostream_send(h2o_ostream_t *self, h2o_req_t *req, h2o_iovec_t *bufs, size_t bufcnt, h2o_send_state_t state)
-{
-    h2o_http2_stream_t *stream = H2O_STRUCT_FROM_MEMBER(h2o_http2_stream_t, _ostr_final, self);
-    h2o_http2_conn_t *conn = (h2o_http2_conn_t *)req->conn;
-
-    assert(stream->_data.size == 0);
-
-    stream->send_state = state;
-
-    /* send headers */
-    switch (stream->state) {
-    case H2O_HTTP2_STREAM_STATE_SEND_HEADERS:
-        if (send_headers(conn, stream) != 0)
-            return;
-    /* fallthru */
-    case H2O_HTTP2_STREAM_STATE_SEND_BODY:
-        if (state != H2O_SEND_STATE_IN_PROGRESS) {
-            h2o_http2_stream_set_state(conn, stream, H2O_HTTP2_STREAM_STATE_SEND_BODY_IS_FINAL);
-        }
-        break;
-    case H2O_HTTP2_STREAM_STATE_END_STREAM:
-        /* might get set by h2o_http2_stream_reset */
-        return;
-    default:
-        assert(!"cannot be in a receiving state");
-    }
-
-    /* save the contents in queue */
-    if (bufcnt != 0) {
-        h2o_vector_reserve(&req->pool, &stream->_data, bufcnt);
-        memcpy(stream->_data.entries, bufs, sizeof(h2o_iovec_t) * bufcnt);
-        stream->_data.size = bufcnt;
-    }
-
-    h2o_http2_conn_register_for_proceed_callback(conn, stream);
-}
-
-void h2o_http2_stream_send_pending_data(h2o_http2_conn_t *conn, h2o_http2_stream_t *stream)
-{
-    if (h2o_http2_window_get_window(&stream->output_window) <= 0)
-        return;
-
-    if (stream->_pull_cb != NULL) {
-        h2o_send_state_t send_state;
-        /* pull mode */
-        assert(stream->state != H2O_HTTP2_STREAM_STATE_END_STREAM);
-        send_state = send_data_pull(conn, stream);
-        if (send_state != H2O_SEND_STATE_IN_PROGRESS) {
-            /* sent all data */
-            stream->_data.size = 0;
-            h2o_http2_stream_set_state(conn, stream, H2O_HTTP2_STREAM_STATE_END_STREAM);
-        }
-    } else {
-        /* push mode */
-        h2o_iovec_t *nextbuf = send_data_push(conn, stream, stream->_data.entries, stream->_data.size, stream->send_state);
-        if (nextbuf == stream->_data.entries + stream->_data.size) {
-            /* sent all data */
-            stream->_data.size = 0;
-            if (stream->state == H2O_HTTP2_STREAM_STATE_SEND_BODY_IS_FINAL)
-                h2o_http2_stream_set_state(conn, stream, H2O_HTTP2_STREAM_STATE_END_STREAM);
-        } else if (nextbuf != stream->_data.entries) {
-            /* adjust the buffer */
-            size_t newsize = stream->_data.size - (nextbuf - stream->_data.entries);
-            memmove(stream->_data.entries, nextbuf, sizeof(h2o_iovec_t) * newsize);
-            stream->_data.size = newsize;
-        }
-    }
-}
-
-void h2o_http2_stream_proceed(h2o_http2_conn_t *conn, h2o_http2_stream_t *stream)
-{
-    if (stream->state == H2O_HTTP2_STREAM_STATE_END_STREAM) {
-        h2o_http2_stream_close(conn, stream);
-    } else {
-        h2o_proceed_response(&stream->req);
-    }
-}