static void on_initial_header(grpc_exec_ctx *exec_ctx, void *tp,
grpc_mdelem *md) {
grpc_chttp2_transport *t = tp;
grpc_chttp2_stream *s = t->incoming_stream;
GPR_TIMER_BEGIN("on_initial_header", 0);
GPR_ASSERT(s != NULL);
GRPC_CHTTP2_IF_TRACING(gpr_log(
GPR_INFO, "HTTP:%d:HDR:%s: %s: %s", s->id, t->is_client ? "CLI" : "SVR",
grpc_mdstr_as_c_string(md->key), grpc_mdstr_as_c_string(md->value)));
if (md->key == GRPC_MDSTR_GRPC_STATUS && md != GRPC_MDELEM_GRPC_STATUS_0) {
/* TODO(ctiller): check for a status like " 0" */
s->seen_error = true;
}
if (md->key == GRPC_MDSTR_GRPC_TIMEOUT) {
gpr_timespec *cached_timeout = grpc_mdelem_get_user_data(md, free_timeout);
if (!cached_timeout) {
/* not already parsed: parse it now, and store the result away */
cached_timeout = gpr_malloc(sizeof(gpr_timespec));
if (!grpc_http2_decode_timeout(grpc_mdstr_as_c_string(md->value),
cached_timeout)) {
gpr_log(GPR_ERROR, "Ignoring bad timeout value '%s'",
grpc_mdstr_as_c_string(md->value));
*cached_timeout = gpr_inf_future(GPR_TIMESPAN);
}
grpc_mdelem_set_user_data(md, free_timeout, cached_timeout);
}
grpc_chttp2_incoming_metadata_buffer_set_deadline(
&s->metadata_buffer[0],
gpr_time_add(gpr_now(GPR_CLOCK_MONOTONIC), *cached_timeout));
GRPC_MDELEM_UNREF(md);
} else {
const size_t new_size = s->metadata_buffer[0].size + GRPC_MDELEM_LENGTH(md);
const size_t metadata_size_limit =
t->settings[GRPC_ACKED_SETTINGS]
[GRPC_CHTTP2_SETTINGS_MAX_HEADER_LIST_SIZE];
if (new_size > metadata_size_limit) {
gpr_log(GPR_DEBUG,
"received initial metadata size exceeds limit (%" PRIuPTR
" vs. %" PRIuPTR ")",
new_size, metadata_size_limit);
grpc_chttp2_cancel_stream(
exec_ctx, t, s,
grpc_error_set_int(
GRPC_ERROR_CREATE("received initial metadata size exceeds limit"),
GRPC_ERROR_INT_GRPC_STATUS, GRPC_STATUS_RESOURCE_EXHAUSTED));
grpc_chttp2_parsing_become_skip_parser(exec_ctx, t);
s->seen_error = true;
GRPC_MDELEM_UNREF(md);
} else {
grpc_chttp2_incoming_metadata_buffer_add(&s->metadata_buffer[0], md);
}
}
GPR_TIMER_END("on_initial_header", 0);
}
static gpr_uint32 decode_status(grpc_mdelem *md) {
gpr_uint32 status;
void *user_data = grpc_mdelem_get_user_data(md, destroy_status);
if (user_data) {
status = ((gpr_uint32)(gpr_intptr) user_data) - STATUS_OFFSET;
} else {
if (!gpr_parse_bytes_to_uint32(grpc_mdstr_as_c_string(md->value),
GPR_SLICE_LENGTH(md->value->slice),
&status)) {
status = GRPC_STATUS_UNKNOWN; /* could not parse status code */
}
grpc_mdelem_set_user_data(md, destroy_status,
(void *)(gpr_intptr)(status + STATUS_OFFSET));
}
return status;
}
static void set_encodings_accepted_by_peer(grpc_call *call, grpc_mdelem *mdel) {
size_t i;
grpc_compression_algorithm algorithm;
gpr_slice_buffer accept_encoding_parts;
gpr_slice accept_encoding_slice;
void *accepted_user_data;
accepted_user_data =
grpc_mdelem_get_user_data(mdel, destroy_encodings_accepted_by_peer);
if (accepted_user_data != NULL) {
call->encodings_accepted_by_peer =
(gpr_uint32)(((gpr_uintptr)accepted_user_data) - 1);
return;
}
accept_encoding_slice = mdel->value->slice;
gpr_slice_buffer_init(&accept_encoding_parts);
gpr_slice_split(accept_encoding_slice, ",", &accept_encoding_parts);
/* No need to zero call->encodings_accepted_by_peer: grpc_call_create already
* zeroes the whole grpc_call */
/* Always support no compression */
GPR_BITSET(&call->encodings_accepted_by_peer, GRPC_COMPRESS_NONE);
for (i = 0; i < accept_encoding_parts.count; i++) {
const gpr_slice *accept_encoding_entry_slice =
&accept_encoding_parts.slices[i];
if (grpc_compression_algorithm_parse(
(const char *)GPR_SLICE_START_PTR(*accept_encoding_entry_slice),
GPR_SLICE_LENGTH(*accept_encoding_entry_slice), &algorithm)) {
GPR_BITSET(&call->encodings_accepted_by_peer, algorithm);
} else {
char *accept_encoding_entry_str =
gpr_dump_slice(*accept_encoding_entry_slice, GPR_DUMP_ASCII);
gpr_log(GPR_ERROR,
"Invalid entry in accept encoding metadata: '%s'. Ignoring.",
accept_encoding_entry_str);
gpr_free(accept_encoding_entry_str);
}
}
gpr_slice_buffer_destroy(&accept_encoding_parts);
grpc_mdelem_set_user_data(
mdel, destroy_encodings_accepted_by_peer,
(void *)(((gpr_uintptr)call->encodings_accepted_by_peer) + 1));
}
static void on_initial_header(void *tp, grpc_mdelem *md) {
grpc_chttp2_transport_parsing *transport_parsing = tp;
grpc_chttp2_stream_parsing *stream_parsing =
transport_parsing->incoming_stream;
GPR_TIMER_BEGIN("on_initial_header", 0);
GPR_ASSERT(stream_parsing);
GRPC_CHTTP2_IF_TRACING(gpr_log(
GPR_INFO, "HTTP:%d:HDR:%s: %s: %s", stream_parsing->id,
transport_parsing->is_client ? "CLI" : "SVR",
grpc_mdstr_as_c_string(md->key), grpc_mdstr_as_c_string(md->value)));
if (md->key == GRPC_MDSTR_GRPC_STATUS && md != GRPC_MDELEM_GRPC_STATUS_0) {
/* TODO(ctiller): check for a status like " 0" */
stream_parsing->seen_error = 1;
}
if (md->key == GRPC_MDSTR_GRPC_TIMEOUT) {
gpr_timespec *cached_timeout = grpc_mdelem_get_user_data(md, free_timeout);
if (!cached_timeout) {
/* not already parsed: parse it now, and store the result away */
cached_timeout = gpr_malloc(sizeof(gpr_timespec));
if (!grpc_chttp2_decode_timeout(grpc_mdstr_as_c_string(md->value),
cached_timeout)) {
gpr_log(GPR_ERROR, "Ignoring bad timeout value '%s'",
grpc_mdstr_as_c_string(md->value));
*cached_timeout = gpr_inf_future(GPR_TIMESPAN);
}
grpc_mdelem_set_user_data(md, free_timeout, cached_timeout);
}
grpc_chttp2_incoming_metadata_buffer_set_deadline(
&stream_parsing->metadata_buffer[0],
gpr_time_add(gpr_now(GPR_CLOCK_MONOTONIC), *cached_timeout));
GRPC_MDELEM_UNREF(md);
} else {
grpc_chttp2_incoming_metadata_buffer_add(
&stream_parsing->metadata_buffer[0], md);
}
grpc_chttp2_list_add_parsing_seen_stream(transport_parsing, stream_parsing);
GPR_TIMER_END("on_initial_header", 0);
}
static void test_user_data_works(void) {
int *ud1;
int *ud2;
grpc_mdelem *md;
LOG_TEST("test_user_data_works");
grpc_init();
ud1 = gpr_malloc(sizeof(int));
*ud1 = 1;
ud2 = gpr_malloc(sizeof(int));
*ud2 = 2;
md = grpc_mdelem_from_strings("abc", "123");
grpc_mdelem_set_user_data(md, gpr_free, ud1);
grpc_mdelem_set_user_data(md, gpr_free, ud2);
GPR_ASSERT(grpc_mdelem_get_user_data(md, gpr_free) == ud1);
GRPC_MDELEM_UNREF(md);
grpc_shutdown();
}
static gpr_uint32 decode_compression(grpc_mdelem *md) {
grpc_compression_algorithm algorithm;
void *user_data = grpc_mdelem_get_user_data(md, destroy_compression);
if (user_data) {
algorithm =
((grpc_compression_algorithm)(gpr_intptr)user_data) - COMPRESS_OFFSET;
} else {
const char *md_c_str = grpc_mdstr_as_c_string(md->value);
if (!grpc_compression_algorithm_parse(md_c_str, strlen(md_c_str),
&algorithm)) {
gpr_log(GPR_ERROR, "Invalid compression algorithm: '%s'", md_c_str);
assert(0);
}
grpc_mdelem_set_user_data(
md, destroy_compression,
(void *)(gpr_intptr)(algorithm + COMPRESS_OFFSET));
}
return algorithm;
}
static void on_header(void *tp, grpc_mdelem *md) {
grpc_chttp2_transport_parsing *transport_parsing = tp;
grpc_chttp2_stream_parsing *stream_parsing =
transport_parsing->incoming_stream;
GPR_ASSERT(stream_parsing);
GRPC_CHTTP2_IF_TRACING(gpr_log(
GPR_INFO, "HTTP:%d:HDR:%s: %s: %s", stream_parsing->id,
transport_parsing->is_client ? "CLI" : "SVR",
grpc_mdstr_as_c_string(md->key), grpc_mdstr_as_c_string(md->value)));
if (md->key == transport_parsing->str_grpc_timeout) {
gpr_timespec *cached_timeout = grpc_mdelem_get_user_data(md, free_timeout);
if (!cached_timeout) {
/* not already parsed: parse it now, and store the result away */
cached_timeout = gpr_malloc(sizeof(gpr_timespec));
if (!grpc_chttp2_decode_timeout(grpc_mdstr_as_c_string(md->value),
cached_timeout)) {
gpr_log(GPR_ERROR, "Ignoring bad timeout value '%s'",
grpc_mdstr_as_c_string(md->value));
*cached_timeout = gpr_inf_future(GPR_CLOCK_REALTIME);
}
grpc_mdelem_set_user_data(md, free_timeout, cached_timeout);
}
grpc_chttp2_incoming_metadata_buffer_set_deadline(
&stream_parsing->incoming_metadata,
gpr_time_add(gpr_now(GPR_CLOCK_REALTIME), *cached_timeout));
GRPC_MDELEM_UNREF(md);
} else {
grpc_chttp2_incoming_metadata_buffer_add(&stream_parsing->incoming_metadata,
md);
}
grpc_chttp2_list_add_parsing_seen_stream(transport_parsing, stream_parsing);
}
static void on_initial_header(grpc_exec_ctx *exec_ctx, void *tp,
grpc_mdelem md) {
grpc_chttp2_transport *t = (grpc_chttp2_transport *)tp;
grpc_chttp2_stream *s = t->incoming_stream;
GPR_TIMER_BEGIN("on_initial_header", 0);
GPR_ASSERT(s != NULL);
if (GRPC_TRACER_ON(grpc_http_trace)) {
char *key = grpc_slice_to_c_string(GRPC_MDKEY(md));
char *value =
grpc_dump_slice(GRPC_MDVALUE(md), GPR_DUMP_HEX | GPR_DUMP_ASCII);
gpr_log(GPR_INFO, "HTTP:%d:HDR:%s: %s: %s", s->id,
t->is_client ? "CLI" : "SVR", key, value);
gpr_free(key);
gpr_free(value);
}
if (grpc_slice_eq(GRPC_MDKEY(md), GRPC_MDSTR_GRPC_STATUS) &&
!grpc_mdelem_eq(md, GRPC_MDELEM_GRPC_STATUS_0)) {
/* TODO(ctiller): check for a status like " 0" */
s->seen_error = true;
}
if (grpc_slice_eq(GRPC_MDKEY(md), GRPC_MDSTR_GRPC_TIMEOUT)) {
gpr_timespec *cached_timeout =
(gpr_timespec *)grpc_mdelem_get_user_data(md, free_timeout);
gpr_timespec timeout;
if (cached_timeout == NULL) {
/* not already parsed: parse it now, and store the result away */
cached_timeout = (gpr_timespec *)gpr_malloc(sizeof(gpr_timespec));
if (!grpc_http2_decode_timeout(GRPC_MDVALUE(md), cached_timeout)) {
char *val = grpc_slice_to_c_string(GRPC_MDVALUE(md));
gpr_log(GPR_ERROR, "Ignoring bad timeout value '%s'", val);
gpr_free(val);
*cached_timeout = gpr_inf_future(GPR_TIMESPAN);
}
timeout = *cached_timeout;
grpc_mdelem_set_user_data(md, free_timeout, cached_timeout);
} else {
timeout = *cached_timeout;
}
grpc_chttp2_incoming_metadata_buffer_set_deadline(
&s->metadata_buffer[0],
gpr_time_add(gpr_now(GPR_CLOCK_MONOTONIC), timeout));
GRPC_MDELEM_UNREF(exec_ctx, md);
} else {
const size_t new_size = s->metadata_buffer[0].size + GRPC_MDELEM_LENGTH(md);
const size_t metadata_size_limit =
t->settings[GRPC_ACKED_SETTINGS]
[GRPC_CHTTP2_SETTINGS_MAX_HEADER_LIST_SIZE];
if (new_size > metadata_size_limit) {
gpr_log(GPR_DEBUG,
"received initial metadata size exceeds limit (%" PRIuPTR
" vs. %" PRIuPTR ")",
new_size, metadata_size_limit);
grpc_chttp2_cancel_stream(
exec_ctx, t, s,
grpc_error_set_int(
GRPC_ERROR_CREATE_FROM_STATIC_STRING(
"received initial metadata size exceeds limit"),
GRPC_ERROR_INT_GRPC_STATUS, GRPC_STATUS_RESOURCE_EXHAUSTED));
grpc_chttp2_parsing_become_skip_parser(exec_ctx, t);
s->seen_error = true;
GRPC_MDELEM_UNREF(exec_ctx, md);
} else {
grpc_error *error = grpc_chttp2_incoming_metadata_buffer_add(
exec_ctx, &s->metadata_buffer[0], md);
if (error != GRPC_ERROR_NONE) {
grpc_chttp2_cancel_stream(exec_ctx, t, s, error);
grpc_chttp2_parsing_become_skip_parser(exec_ctx, t);
s->seen_error = true;
GRPC_MDELEM_UNREF(exec_ctx, md);
}
}
}
GPR_TIMER_END("on_initial_header", 0);
}
static void on_initial_header(void *tp, grpc_mdelem *md) {
grpc_chttp2_transport_parsing *transport_parsing = tp;
grpc_chttp2_stream_parsing *stream_parsing =
transport_parsing->incoming_stream;
GPR_TIMER_BEGIN("on_initial_header", 0);
GPR_ASSERT(stream_parsing);
GRPC_CHTTP2_IF_TRACING(gpr_log(
GPR_INFO, "HTTP:%d:HDR:%s: %s: %s", stream_parsing->id,
transport_parsing->is_client ? "CLI" : "SVR",
grpc_mdstr_as_c_string(md->key), grpc_mdstr_as_c_string(md->value)));
if (md->key == GRPC_MDSTR_GRPC_STATUS && md != GRPC_MDELEM_GRPC_STATUS_0) {
/* TODO(ctiller): check for a status like " 0" */
stream_parsing->seen_error = true;
}
if (md->key == GRPC_MDSTR_GRPC_TIMEOUT) {
gpr_timespec *cached_timeout = grpc_mdelem_get_user_data(md, free_timeout);
if (!cached_timeout) {
/* not already parsed: parse it now, and store the result away */
cached_timeout = gpr_malloc(sizeof(gpr_timespec));
if (!grpc_chttp2_decode_timeout(grpc_mdstr_as_c_string(md->value),
cached_timeout)) {
gpr_log(GPR_ERROR, "Ignoring bad timeout value '%s'",
grpc_mdstr_as_c_string(md->value));
*cached_timeout = gpr_inf_future(GPR_TIMESPAN);
}
grpc_mdelem_set_user_data(md, free_timeout, cached_timeout);
}
grpc_chttp2_incoming_metadata_buffer_set_deadline(
&stream_parsing->metadata_buffer[0],
gpr_time_add(gpr_now(GPR_CLOCK_MONOTONIC), *cached_timeout));
GRPC_MDELEM_UNREF(md);
} else {
const size_t new_size =
stream_parsing->metadata_buffer[0].size + GRPC_MDELEM_LENGTH(md);
grpc_chttp2_transport_global *transport_global =
&TRANSPORT_FROM_PARSING(transport_parsing)->global;
const size_t metadata_size_limit =
transport_global->settings[GRPC_LOCAL_SETTINGS]
[GRPC_CHTTP2_SETTINGS_MAX_HEADER_LIST_SIZE];
if (new_size > metadata_size_limit) {
if (!stream_parsing->exceeded_metadata_size) {
gpr_log(GPR_DEBUG,
"received initial metadata size exceeds limit (%" PRIuPTR
" vs. %" PRIuPTR ")",
new_size, metadata_size_limit);
stream_parsing->seen_error = true;
stream_parsing->exceeded_metadata_size = true;
}
GRPC_MDELEM_UNREF(md);
} else {
grpc_chttp2_incoming_metadata_buffer_add(
&stream_parsing->metadata_buffer[0], md);
}
}
grpc_chttp2_list_add_parsing_seen_stream(transport_parsing, stream_parsing);
GPR_TIMER_END("on_initial_header", 0);
}