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swoole_http2_server.cc
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/*
+----------------------------------------------------------------------+
| Swoole |
+----------------------------------------------------------------------+
| This source file is subject to version 2.0 of the Apache license, |
| that is bundled with this package in the file LICENSE, and is |
| available through the world-wide-web at the following url: |
| http://www.apache.org/licenses/LICENSE-2.0.html |
| If you did not receive a copy of the Apache2.0 license and are unable|
| to obtain it through the world-wide-web, please send a note to |
| [email protected] so we can mail you a copy immediately. |
+----------------------------------------------------------------------+
| Author: Tianfeng Han <[email protected]> |
+----------------------------------------------------------------------+
*/
#include "php_swoole_http_server.h"
#include <sstream>
#include "swoole_static_handler.h"
#include "main/php_variables.h"
using namespace swoole;
using std::string;
using swoole::coroutine::System;
using swoole::http2::get_default_setting;
using swoole::http_server::StaticHandler;
namespace Http2 = swoole::http2;
using HttpContext = swoole::http::Context;
using Http2Stream = Http2::Stream;
using Http2Session = Http2::Session;
static SW_THREAD_LOCAL std::unordered_map<SessionId, Http2Session *> http2_sessions;
static bool http2_server_respond(HttpContext *ctx, const String *body);
static bool http2_server_write(HttpContext *ctx, const String *chunk);
static bool http2_server_send_range_file(HttpContext *ctx, StaticHandler *handler);
Http2Stream::Stream(Http2Session *client, uint32_t _id) {
ctx = swoole_http_context_new(client->fd);
ctx->copy(client->default_ctx);
ctx->http2 = true;
ctx->stream = this;
ctx->keepalive = true;
id = _id;
local_window_size = client->local_settings.init_window_size;
remote_window_size = client->remote_settings.init_window_size;
}
Http2Stream::~Stream() {
ctx->stream = nullptr;
ctx->end_ = true;
ctx->free();
}
void Http2Stream::reset(uint32_t error_code) {
char frame[SW_HTTP2_FRAME_HEADER_SIZE + SW_HTTP2_RST_STREAM_SIZE];
swoole_trace_log(
SW_TRACE_HTTP2, "send [" SW_ECHO_YELLOW "] stream_id=%u, error_code=%u", "RST_STREAM", id, error_code);
*(uint32_t *) ((char *) frame + SW_HTTP2_FRAME_HEADER_SIZE) = htonl(error_code);
http2::set_frame_header(frame, SW_HTTP2_TYPE_RST_STREAM, SW_HTTP2_RST_STREAM_SIZE, 0, id);
ctx->send(ctx, frame, SW_HTTP2_FRAME_HEADER_SIZE + SW_HTTP2_RST_STREAM_SIZE);
}
Http2Session::Session(SessionId _fd) {
fd = _fd;
Http2::init_settings(&local_settings);
// [init]: we must set default value, peer is not always send all the settings
Http2::init_settings(&remote_settings);
local_window_size = local_settings.init_window_size;
remote_window_size = remote_settings.init_window_size;
last_stream_id = 0;
shutting_down = false;
is_coro = false;
http2_sessions[_fd] = this;
}
Http2Session::~Session() {
for (auto iter = streams.begin(); iter != streams.end(); iter++) {
delete iter->second;
}
if (inflater) {
nghttp2_hd_inflate_del(inflater);
}
if (deflater) {
nghttp2_hd_deflate_del(deflater);
}
if (default_ctx) {
delete default_ctx;
}
http2_sessions.erase(fd);
}
static void http2_server_send_window_update(HttpContext *ctx, uint32_t stream_id, uint32_t size) {
char frame[SW_HTTP2_FRAME_HEADER_SIZE + SW_HTTP2_WINDOW_UPDATE_SIZE];
swoole_trace_log(
SW_TRACE_HTTP2, "send [" SW_ECHO_YELLOW "] stream_id=%u, size=%u", "WINDOW_UPDATE", stream_id, size);
*(uint32_t *) ((char *) frame + SW_HTTP2_FRAME_HEADER_SIZE) = htonl(size);
Http2::set_frame_header(frame, SW_HTTP2_TYPE_WINDOW_UPDATE, SW_HTTP2_WINDOW_UPDATE_SIZE, 0, stream_id);
ctx->send(ctx, frame, SW_HTTP2_FRAME_HEADER_SIZE + SW_HTTP2_WINDOW_UPDATE_SIZE);
}
static ssize_t http2_server_build_trailer(HttpContext *ctx, uchar *buffer) {
zval *ztrailer =
sw_zend_read_property_ex(swoole_http_response_ce, ctx->response.zobject, SW_ZSTR_KNOWN(SW_ZEND_STR_TRAILER), 0);
uint32_t size = php_swoole_array_length_safe(ztrailer);
if (size > 0) {
Http2::HeaderSet trailer(size);
zend_string *key;
zval *zvalue;
ZEND_HASH_FOREACH_STR_KEY_VAL(Z_ARRVAL_P(ztrailer), key, zvalue) {
if (UNEXPECTED(!key || ZVAL_IS_NULL(zvalue))) {
continue;
}
zend::String str_value(zvalue);
trailer.add(ZSTR_VAL(key), ZSTR_LEN(key), str_value.val(), str_value.len());
}
ZEND_HASH_FOREACH_END();
ssize_t rv;
size_t buflen;
Http2Session *client = http2_sessions[ctx->fd];
nghttp2_hd_deflater *deflater = client->deflater;
if (!deflater) {
int ret = nghttp2_hd_deflate_new2(&deflater, client->remote_settings.header_table_size, php_nghttp2_mem());
if (ret != 0) {
swoole_warning("nghttp2_hd_deflate_new2() failed with error: %s", nghttp2_strerror(ret));
return -1;
}
client->deflater = deflater;
}
buflen = nghttp2_hd_deflate_bound(deflater, trailer.get(), trailer.len());
#if 0
if (buflen > SW_HTTP2_DEFAULT_MAX_HEADER_LIST_SIZE) {
php_swoole_error(E_WARNING,
"header cannot bigger than remote max_header_list_size %u",
SW_HTTP2_DEFAULT_MAX_HEADER_LIST_SIZE);
return -1;
}
#endif
rv = nghttp2_hd_deflate_hd(deflater, (uchar *) buffer, buflen, trailer.get(), trailer.len());
if (rv < 0) {
swoole_warning("nghttp2_hd_deflate_hd() failed with error: %s", nghttp2_strerror((int) rv));
return -1;
}
return rv;
}
return 0;
}
static bool http2_server_is_static_file(Server *serv, HttpContext *ctx) {
zval *zserver = ctx->request.zserver;
zval *zrequest_uri = zend_hash_str_find(Z_ARR_P(zserver), ZEND_STRL("request_uri"));
if (zrequest_uri && Z_TYPE_P(zrequest_uri) == IS_STRING) {
StaticHandler handler(serv, Z_STRVAL_P(zrequest_uri), Z_STRLEN_P(zrequest_uri));
if (!handler.hit()) {
return false;
}
if (handler.status_code == SW_HTTP_NOT_FOUND) {
String body(SW_STRL(SW_HTTP_PAGE_404));
ctx->response.status = SW_HTTP_NOT_FOUND;
http2_server_respond(ctx, &body);
return true;
}
/**
* if http_index_files is enabled, need to search the index file first.
* if the index file is found, set filename to index filename.
*/
if (!handler.hit_index_file()) {
return false;
}
/**
* the index file was not found in the current directory,
* if http_autoindex is enabled, should show the list of files in the current directory.
*/
if (!handler.has_index_file() && handler.is_enabled_auto_index() && handler.is_dir()) {
String body(PATH_MAX);
body.length = handler.make_index_page(&body);
http2_server_respond(ctx, &body);
return true;
}
auto date_str = handler.get_date();
auto date_str_last_modified = handler.get_date_last_modified();
zval *zheader = ctx->request.zheader;
ctx->set_header(ZEND_STRL("Last-Modified"), date_str_last_modified.c_str(), date_str_last_modified.length(), 0);
zval *zdate_if_modified_since = zend_hash_str_find(Z_ARR_P(zheader), ZEND_STRL("if-modified-since"));
if (zdate_if_modified_since) {
string date_if_modified_since(Z_STRVAL_P(zdate_if_modified_since), Z_STRLEN_P(zdate_if_modified_since));
if (!date_if_modified_since.empty() && handler.is_modified(date_if_modified_since)) {
ctx->response.status = SW_HTTP_NOT_MODIFIED;
return true;
}
}
zval *zrange = zend_hash_str_find(Z_ARR_P(zheader), ZEND_STRL("range"));
zval *zif_range = zend_hash_str_find(Z_ARR_P(zheader), ZEND_STRL("if-range"));
handler.parse_range(zrange ? Z_STRVAL_P(zrange) : nullptr, zif_range ? Z_STRVAL_P(zif_range) : nullptr);
ctx->response.status = handler.status_code;
auto tasks = handler.get_tasks();
if (1 == tasks.size()) {
if (SW_HTTP_PARTIAL_CONTENT == handler.status_code) {
std::stringstream content_range;
content_range << "bytes " << tasks[0].offset << "-" << (tasks[0].length + tasks[0].offset - 1) << "/"
<< handler.get_filesize() << "\r\n";
auto content_range_str = content_range.str();
ctx->set_header(ZEND_STRL("Content-Range"), content_range_str.c_str(), content_range_str.length(), 0);
} else {
ctx->set_header(ZEND_STRL("Accept-Ranges"), SW_STRL("bytes"), 0);
}
}
ctx->onAfterResponse = nullptr;
ctx->onBeforeRequest = nullptr;
// request_method
zval *zrequest_method = zend_hash_str_find(Z_ARR_P(zserver), ZEND_STRL("request_method"));
if (zrequest_method && Z_TYPE_P(zrequest_method) == IS_STRING &&
SW_STRCASEEQ(Z_STRVAL_P(zrequest_method), Z_STRLEN_P(zrequest_method), "HEAD")) {
String empty_body;
http2_server_respond(ctx, &empty_body);
return true;
} else {
return http2_server_send_range_file(ctx, &handler);
}
}
return false;
}
static void http2_server_onRequest(Http2Session *client, Http2Stream *stream) {
HttpContext *ctx = stream->ctx;
zval *zserver = ctx->request.zserver;
Server *serv = (Server *) ctx->private_data;
zval args[2];
Connection *serv_sock = nullptr;
zend::Callable *cb = nullptr;
int server_fd = 0;
Connection *conn = serv->get_connection_by_session_id(ctx->fd);
if (!conn) {
goto _destroy;
}
server_fd = conn->server_fd;
serv_sock = serv->get_connection(server_fd);
ctx->request.version = SW_HTTP_VERSION_2;
if (serv->enable_static_handler && http2_server_is_static_file(serv, ctx)) {
goto _destroy;
}
add_assoc_long(zserver, "request_time", time(nullptr));
add_assoc_double(zserver, "request_time_float", microtime());
if (serv_sock) {
add_assoc_long(zserver, "server_port", serv_sock->info.get_port());
}
add_assoc_long(zserver, "remote_port", conn->info.get_port());
add_assoc_string(zserver, "remote_addr", (char *) conn->info.get_ip());
add_assoc_long(zserver, "master_time", conn->last_recv_time);
add_assoc_string(zserver, "server_protocol", (char *) "HTTP/2");
cb = php_swoole_server_get_callback(serv, server_fd, SW_SERVER_CB_onRequest);
ctx->private_data_2 = cb;
if (ctx->onBeforeRequest && !ctx->onBeforeRequest(ctx)) {
return;
}
args[0] = *ctx->request.zobject;
args[1] = *ctx->response.zobject;
if (UNEXPECTED(!zend::function::call(cb, 2, args, nullptr, serv->is_enable_coroutine()))) {
stream->reset(SW_HTTP2_ERROR_INTERNAL_ERROR);
php_swoole_error(E_WARNING, "%s->onRequest[v2] handler error", ZSTR_VAL(swoole_http_server_ce->name));
}
_destroy:
zval_ptr_dtor(ctx->request.zobject);
zval_ptr_dtor(ctx->response.zobject);
}
static void http2_server_set_date_header(Http2::HeaderSet *headers) {
static struct {
time_t time;
size_t len;
char buf[64];
} cache{};
time_t now = time(nullptr);
if (now != cache.time) {
char *date_str = php_swoole_format_date((char *) ZEND_STRL(SW_HTTP_DATE_FORMAT), now, 0);
cache.len = strlen(date_str);
memcpy(cache.buf, date_str, cache.len);
cache.time = now;
efree(date_str);
}
headers->add(ZEND_STRL("date"), cache.buf, cache.len);
}
static ssize_t http2_server_build_header(HttpContext *ctx, uchar *buffer, const String *body) {
zval *zheader =
sw_zend_read_property_ex(swoole_http_response_ce, ctx->response.zobject, SW_ZSTR_KNOWN(SW_ZEND_STR_HEADER), 0);
zval *zcookie =
sw_zend_read_property_ex(swoole_http_response_ce, ctx->response.zobject, SW_ZSTR_KNOWN(SW_ZEND_STR_COOKIE), 0);
Http2::HeaderSet headers(32 + php_swoole_array_length_safe(zheader) + php_swoole_array_length_safe(zcookie));
char intbuf[2][16];
int ret;
assert(ctx->send_header_ == 0);
// status code
if (ctx->response.status == 0) {
ctx->response.status = SW_HTTP_OK;
}
ret = swoole_itoa(intbuf[0], ctx->response.status);
headers.add(ZEND_STRL(":status"), intbuf[0], ret);
uint32_t header_flags = 0x0;
// headers
if (ZVAL_IS_ARRAY(zheader)) {
const char *key;
uint32_t keylen;
zval *zvalue;
int type;
zend_string *content_type = nullptr;
auto add_header =
[ctx, &content_type](
Http2::HeaderSet &headers, const char *key, size_t l_key, zval *value, uint32_t &header_flags) {
if (ZVAL_IS_NULL(value)) {
return;
}
zend::String str_value(value);
str_value.rtrim();
if (swoole_http_has_crlf(str_value.val(), str_value.len())) {
return;
}
if (SW_STRCASEEQ(key, l_key, "server")) {
header_flags |= HTTP_HEADER_SERVER;
} else if (SW_STRCASEEQ(key, l_key, "content-length")) {
return; // ignore
} else if (SW_STRCASEEQ(key, l_key, "date")) {
header_flags |= HTTP_HEADER_DATE;
} else if (SW_STRCASEEQ(key, l_key, "content-type")) {
header_flags |= HTTP_HEADER_CONTENT_TYPE;
#ifdef SW_HAVE_COMPRESSION
if (ctx->accept_compression && ctx->compression_types) {
content_type = zval_get_string(value);
}
#endif
}
headers.add(key, l_key, str_value.val(), str_value.len());
};
SW_HASHTABLE_FOREACH_START2(Z_ARRVAL_P(zheader), key, keylen, type, zvalue) {
if (UNEXPECTED(!key || ZVAL_IS_NULL(zvalue))) {
continue;
}
if (ZVAL_IS_ARRAY(zvalue)) {
zval *zvalue_2;
SW_HASHTABLE_FOREACH_START(Z_ARRVAL_P(zvalue), zvalue_2) {
add_header(headers, key, keylen, zvalue_2, header_flags);
}
SW_HASHTABLE_FOREACH_END();
} else {
add_header(headers, key, keylen, zvalue, header_flags);
}
}
SW_HASHTABLE_FOREACH_END();
(void) type;
#ifdef SW_HAVE_COMPRESSION
if (ctx->accept_compression && ctx->compression_types) {
std::string str_content_type = content_type ? std::string(ZSTR_VAL(content_type), ZSTR_LEN(content_type))
: std::string(ZEND_STRL(SW_HTTP_DEFAULT_CONTENT_TYPE));
ctx->accept_compression = ctx->compression_types->find(str_content_type) != ctx->compression_types->end();
if (content_type) {
zend_string_release(content_type);
}
}
#endif
}
if (!(header_flags & HTTP_HEADER_SERVER)) {
headers.add(ZEND_STRL("server"), ZEND_STRL(SW_HTTP_SERVER_SOFTWARE));
}
if (!(header_flags & HTTP_HEADER_DATE)) {
http2_server_set_date_header(&headers);
}
if (!(header_flags & HTTP_HEADER_CONTENT_TYPE)) {
headers.add(ZEND_STRL("content-type"), ZEND_STRL("text/html"));
}
// cookies
if (ZVAL_IS_ARRAY(zcookie)) {
zval *zvalue;
SW_HASHTABLE_FOREACH_START(Z_ARRVAL_P(zcookie), zvalue) {
if (Z_TYPE_P(zvalue) != IS_STRING) {
continue;
}
headers.add(ZEND_STRL("set-cookie"), Z_STRVAL_P(zvalue), Z_STRLEN_P(zvalue));
}
SW_HASHTABLE_FOREACH_END();
}
if (body) {
size_t content_length = body->length;
// content length
#ifdef SW_HAVE_COMPRESSION
if (ctx->compress(body->str, body->length)) {
content_length = ctx->zlib_buffer->length;
// content encoding
const char *content_encoding = ctx->get_content_encoding();
headers.add(ZEND_STRL("content-encoding"), (char *) content_encoding, strlen(content_encoding));
}
#endif
ret = swoole_itoa(intbuf[1], content_length);
headers.add(ZEND_STRL("content-length"), intbuf[1], ret);
}
Http2Session *client = http2_sessions[ctx->fd];
nghttp2_hd_deflater *deflater = client->deflater;
if (!deflater) {
ret = nghttp2_hd_deflate_new2(&deflater, client->remote_settings.header_table_size, php_nghttp2_mem());
if (ret != 0) {
swoole_warning("nghttp2_hd_deflate_new2() failed with error: %s", nghttp2_strerror(ret));
return -1;
}
client->deflater = deflater;
}
size_t buflen = nghttp2_hd_deflate_bound(deflater, headers.get(), headers.len());
/*
if (buflen > SW_HTTP2_DEFAULT_MAX_HEADER_LIST_SIZE)
{
php_swoole_error(E_WARNING, "header cannot bigger than remote max_header_list_size %u",
SW_HTTP2_DEFAULT_MAX_HEADER_LIST_SIZE); return -1;
}
*/
ssize_t rv = nghttp2_hd_deflate_hd(deflater, (uchar *) buffer, buflen, headers.get(), headers.len());
if (rv < 0) {
swoole_warning("nghttp2_hd_deflate_hd() failed with error: %s", nghttp2_strerror((int) rv));
return -1;
}
ctx->send_header_ = 1;
return rv;
}
int swoole_http2_server_ping(HttpContext *ctx) {
char frame[SW_HTTP2_FRAME_HEADER_SIZE + SW_HTTP2_FRAME_PING_PAYLOAD_SIZE];
Http2::set_frame_header(frame, SW_HTTP2_TYPE_PING, SW_HTTP2_FRAME_PING_PAYLOAD_SIZE, SW_HTTP2_FLAG_NONE, 0);
return ctx->send(ctx, frame, SW_HTTP2_FRAME_HEADER_SIZE + SW_HTTP2_FRAME_PING_PAYLOAD_SIZE) ? SW_OK : SW_ERR;
}
int swoole_http2_server_goaway(HttpContext *ctx, zend_long error_code, const char *debug_data, size_t debug_data_len) {
size_t length = SW_HTTP2_FRAME_HEADER_SIZE + SW_HTTP2_GOAWAY_SIZE + debug_data_len;
char *frame = (char *) ecalloc(1, length);
bool ret;
Http2Session *client = http2_sessions[ctx->fd];
uint32_t last_stream_id = client->last_stream_id;
Http2::set_frame_header(frame, SW_HTTP2_TYPE_GOAWAY, SW_HTTP2_GOAWAY_SIZE + debug_data_len, error_code, 0);
*(uint32_t *) (frame + SW_HTTP2_FRAME_HEADER_SIZE) = htonl(last_stream_id);
*(uint32_t *) (frame + SW_HTTP2_FRAME_HEADER_SIZE + 4) = htonl(error_code);
if (debug_data_len > 0) {
memcpy(frame + SW_HTTP2_FRAME_HEADER_SIZE + SW_HTTP2_GOAWAY_SIZE, debug_data, debug_data_len);
}
ret = ctx->send(ctx, frame, length);
efree(frame);
client->shutting_down = true;
return ret;
}
bool Http2Stream::send_header(const String *body, bool end_stream) {
char header_buffer[SW_BUFFER_SIZE_STD];
ssize_t bytes = http2_server_build_header(ctx, (uchar *) header_buffer, body);
if (bytes < 0) {
return false;
}
String *http_buffer = ctx->get_write_buffer();
http_buffer->clear();
/**
+---------------+
|Pad Length? (8)|
+-+-------------+-----------------------------------------------+
|E| Stream Dependency? (31) |
+-+-------------+-----------------------------------------------+
| Weight? (8) |
+-+-------------+-----------------------------------------------+
| Header Block Fragment (*) ...
+---------------------------------------------------------------+
| Padding (*) ...
+---------------------------------------------------------------+
*/
char frame_header[SW_HTTP2_FRAME_HEADER_SIZE];
if (end_stream && body && body->length == 0) {
http2::set_frame_header(
frame_header, SW_HTTP2_TYPE_HEADERS, bytes, SW_HTTP2_FLAG_END_HEADERS | SW_HTTP2_FLAG_END_STREAM, id);
} else {
http2::set_frame_header(frame_header, SW_HTTP2_TYPE_HEADERS, bytes, SW_HTTP2_FLAG_END_HEADERS, id);
}
http_buffer->append(frame_header, SW_HTTP2_FRAME_HEADER_SIZE);
http_buffer->append(header_buffer, bytes);
if (!ctx->send(ctx, http_buffer->str, http_buffer->length)) {
ctx->send_header_ = 0;
return false;
}
return true;
}
bool Http2Stream::send_end_stream_data_frame() {
char frame_header[SW_HTTP2_FRAME_HEADER_SIZE];
http2::set_frame_header(frame_header, SW_HTTP2_TYPE_DATA, 0, SW_HTTP2_FLAG_END_STREAM, id);
return ctx->send(ctx, frame_header, SW_HTTP2_FRAME_HEADER_SIZE);
}
bool Http2Stream::send_body(const String *body, bool end_stream, size_t max_frame_size, off_t offset, size_t length) {
char frame_header[SW_HTTP2_FRAME_HEADER_SIZE];
char *p = body->str + offset;
size_t l = length == 0 ? body->length : length;
int flags = end_stream ? SW_HTTP2_FLAG_END_STREAM : SW_HTTP2_FLAG_NONE;
String *http_buffer = ctx->get_write_buffer();
while (l > 0) {
size_t send_n;
int _send_flags;
if (l > max_frame_size) {
send_n = max_frame_size;
_send_flags = 0;
} else {
send_n = l;
_send_flags = flags;
}
http2::set_frame_header(frame_header, SW_HTTP2_TYPE_DATA, send_n, _send_flags, id);
// send twice to reduce memory copy
if (send_n < swoole_pagesize()) {
http_buffer->clear();
http_buffer->append(frame_header, SW_HTTP2_FRAME_HEADER_SIZE);
http_buffer->append(p, send_n);
if (!ctx->send(ctx, http_buffer->str, http_buffer->length)) {
return false;
}
} else {
if (!ctx->send(ctx, frame_header, SW_HTTP2_FRAME_HEADER_SIZE)) {
return false;
}
if (!ctx->send(ctx, p, send_n)) {
return false;
}
}
swoole_trace_log(
SW_TRACE_HTTP2, "send [" SW_ECHO_YELLOW "] stream_id=%u, flags=%d, send_n=%lu", "DATA", id, flags, send_n);
l -= send_n;
p += send_n;
}
return true;
}
bool Http2Stream::send_trailer() {
char header_buffer[SW_BUFFER_SIZE_STD] = {};
char frame_header[SW_HTTP2_FRAME_HEADER_SIZE];
String *http_buffer = ctx->get_write_buffer();
http_buffer->clear();
ssize_t bytes = http2_server_build_trailer(ctx, (uchar *) header_buffer);
if (bytes > 0) {
http2::set_frame_header(
frame_header, SW_HTTP2_TYPE_HEADERS, bytes, SW_HTTP2_FLAG_END_HEADERS | SW_HTTP2_FLAG_END_STREAM, id);
http_buffer->append(frame_header, SW_HTTP2_FRAME_HEADER_SIZE);
http_buffer->append(header_buffer, bytes);
if (!ctx->send(ctx, http_buffer->str, http_buffer->length)) {
return false;
}
}
return true;
}
static bool http2_server_send_data(
HttpContext *ctx, Http2Session *client, Http2Stream *stream, const String *body, bool end_stream) {
bool error = false;
// If send_yield is not supported, ignore flow control
if (ctx->co_socket || !((Server *) ctx->private_data)->send_yield || !swoole_coroutine_is_in()) {
if (body->length > client->remote_window_size) {
swoole_warning("The data sent exceeded remote_window_size");
}
if (!stream->send_body(body, end_stream, client->local_settings.max_frame_size)) {
error = true;
}
} else {
off_t offset = body->offset;
while (true) {
size_t send_len = body->length - offset;
if (send_len == 0) {
break;
}
if (stream->remote_window_size == 0) {
stream->waiting_coroutine = Coroutine::get_current();
stream->waiting_coroutine->yield();
stream->waiting_coroutine = nullptr;
continue;
}
bool _end_stream;
if (send_len > stream->remote_window_size) {
send_len = stream->remote_window_size;
_end_stream = false;
} else {
_end_stream = true && end_stream;
}
error = !stream->send_body(body, _end_stream, client->local_settings.max_frame_size, offset, send_len);
if (!error) {
swoole_trace_log(SW_TRACE_HTTP2,
"body: send length=%zu, stream->remote_window_size=%u",
send_len,
stream->remote_window_size);
offset += send_len;
if (send_len > stream->remote_window_size) {
stream->remote_window_size = 0;
} else {
stream->remote_window_size -= send_len;
}
}
}
}
return !error;
}
static bool http2_server_write(HttpContext *ctx, const String *chunk) {
Http2Session *client = http2_sessions[ctx->fd];
Http2Stream *stream = ctx->stream;
ctx->send_chunked = 1;
if (!ctx->send_header_ && !stream->send_header(nullptr, false)) {
return false;
}
if (!http2_server_send_data(ctx, client, stream, chunk, false)) {
return false;
}
return true;
}
static bool http2_server_respond(HttpContext *ctx, const String *body) {
Http2Session *client = http2_sessions[ctx->fd];
Http2Stream *stream = ctx->stream;
zval *ztrailer =
sw_zend_read_property_ex(swoole_http_response_ce, ctx->response.zobject, SW_ZSTR_KNOWN(SW_ZEND_STR_TRAILER), 0);
if (php_swoole_array_length_safe(ztrailer) == 0) {
ztrailer = nullptr;
}
bool end_stream = (ztrailer == nullptr);
if (!ctx->send_header_ && !stream->send_header(body, end_stream)) {
return false;
}
// The headers has already been sent, retries are no longer allowed (even if send body failed)
ctx->end_ = 1;
bool error = true;
#ifdef SW_HAVE_COMPRESSION
if (ctx->content_compressed) {
body = ctx->zlib_buffer.get();
}
#endif
SW_LOOP {
if (ctx->send_chunked && body->length == 0 && !stream->send_end_stream_data_frame()) {
break;
} else if (!http2_server_send_data(ctx, client, stream, body, end_stream)) {
break;
} else if (ztrailer && !stream->send_trailer()) {
break;
}
error = false;
break;
}
if (error) {
ctx->close(ctx);
} else {
client->streams.erase(stream->id);
delete stream;
}
if (client->shutting_down && client->streams.size() == 0) {
ctx->close(ctx);
}
return !error;
}
static bool http2_server_send_range_file(HttpContext *ctx, StaticHandler *handler) {
Http2Session *client = http2_sessions[ctx->fd];
std::shared_ptr<String> body;
#ifdef SW_HAVE_COMPRESSION
ctx->accept_compression = 0;
#endif
bool error = false;
zval *ztrailer =
sw_zend_read_property_ex(swoole_http_response_ce, ctx->response.zobject, SW_ZSTR_KNOWN(SW_ZEND_STR_TRAILER), 0);
if (php_swoole_array_length_safe(ztrailer) == 0) {
ztrailer = nullptr;
}
zval *zheader =
sw_zend_read_and_convert_property_array(swoole_http_response_ce, ctx->response.zobject, ZEND_STRL("header"), 0);
if (!zend_hash_str_exists(Z_ARRVAL_P(zheader), ZEND_STRL("content-type"))) {
ctx->set_header(ZEND_STRL("content-type"), handler->get_content_type(), strlen(handler->get_content_type()), 0);
}
bool end_stream = (ztrailer == nullptr);
body.reset(new String());
body->length = handler->get_content_length();
if (!ctx->stream->send_header(body.get(), end_stream)) {
return false;
}
/* headers has already been sent, retries are no longer allowed (even if send body failed) */
ctx->end_ = 1;
auto tasks = handler->get_tasks();
if (!tasks.empty()) {
File fp(handler->get_filename(), O_RDONLY);
if (!fp.ready()) {
return false;
}
char *buf;
if (tasks.size() > 1) {
for (auto i = tasks.begin(); i != tasks.end(); i++) {
body.reset(new String(i->part_header, strlen(i->part_header)));
if (!ctx->stream->send_body(
body.get(), false, client->local_settings.max_frame_size, 0, body->length)) {
error = true;
break;
} else {
client->remote_window_size -= body->length; // TODO: flow control?
}
fp.set_offset(i->offset);
buf = (char *) emalloc(i->length);
auto n_reads = fp.read(buf, i->length);
if (n_reads < 0) {
efree(buf);
return false;
}
body.reset(new String(buf, i->length));
efree(buf);
if (!ctx->stream->send_body(
body.get(), false, client->local_settings.max_frame_size, 0, body->length)) {
error = true;
break;
} else {
client->remote_window_size -= body->length; // TODO: flow control?
}
}
if (!error) {
body.reset(new String(handler->get_end_part(), strlen(handler->get_end_part())));
if (!ctx->stream->send_body(
body.get(), end_stream, client->local_settings.max_frame_size, 0, body->length)) {
error = true;
} else {
client->remote_window_size -= body->length; // TODO: flow control?
}
}
} else if (tasks[0].length > 0) {
auto callback = [&]() -> bool {
fp.set_offset(tasks[0].offset);
buf = (char *) emalloc(tasks[0].length);
auto n_reads = fp.read(buf, tasks[0].length);
if (n_reads < 0) {
efree(buf);
return false;
}
body.reset(new String(buf, n_reads));
efree(buf);
return true;
};
if (swoole_coroutine_is_in()) {
if (!swoole::coroutine::async(callback)) {
return false;
}
} else {
if (!callback()) {
return false;
}
}
if (!ctx->stream->send_body(
body.get(), end_stream, client->local_settings.max_frame_size, 0, body->length)) {
error = true;
} else {
client->remote_window_size -= body->length; // TODO: flow control?
}
}
}
if (!error && ztrailer) {
if (!ctx->stream->send_trailer()) {
error = true;
}
}
if (error) {
ctx->close(ctx);
} else {
client->streams.erase(ctx->stream->id);
delete ctx->stream;
}
return true;
}
bool HttpContext::http2_send_file(const char *file, uint32_t l_file, off_t offset, size_t length) {
Http2Session *client = http2_sessions[fd];
std::shared_ptr<String> body;
#ifdef SW_HAVE_COMPRESSION
accept_compression = 0;
#endif
if (swoole_coroutine_is_in()) {
body = System::read_file(file, false);
if (!body) {
return false;
}
if (!stream) {
/* closed */
return false;
}
} else {
File fp(file, O_RDONLY);
if (!fp.ready()) {
return false;
}
body = fp.read_content();
}
body->length = SW_MIN(length, body->length);
zval *ztrailer =
sw_zend_read_property_ex(swoole_http_response_ce, response.zobject, SW_ZSTR_KNOWN(SW_ZEND_STR_TRAILER), 0);
if (php_swoole_array_length_safe(ztrailer) == 0) {
ztrailer = nullptr;
}
zval *zheader =
sw_zend_read_and_convert_property_array(swoole_http_response_ce, response.zobject, ZEND_STRL("header"), 0);
if (!zend_hash_str_exists(Z_ARRVAL_P(zheader), ZEND_STRL("content-type"))) {
const char *mimetype = swoole::mime_type::get(file).c_str();
set_header(ZEND_STRL("content-type"), mimetype, strlen(mimetype), 0);
}
bool end_stream = (ztrailer == nullptr);
if (!stream->send_header(body.get(), end_stream)) {
return false;
}
/* headers has already been sent, retries are no longer allowed (even if send body failed) */
end_ = 1;
bool error = false;
if (body->length > 0) {
if (!stream->send_body(body.get(), end_stream, client->local_settings.max_frame_size, offset, length)) {
error = true;
} else {
client->remote_window_size -= length; // TODO: flow control?
}
}
if (!error && ztrailer) {
if (!stream->send_trailer()) {
error = true;
}
}
if (error) {
close(this);
} else {
client->streams.erase(stream->id);
delete stream;
}
return true;
}
static bool http2_server_onBeforeRequest(HttpContext *ctx) {
Server *serv = (Server *) ctx->private_data;
if (serv->is_unavailable()) {
String null_body{};
ctx->response.status = SW_HTTP_SERVICE_UNAVAILABLE;
http2_server_respond(ctx, &null_body);
zval_ptr_dtor(ctx->request.zobject);
zval_ptr_dtor(ctx->response.zobject);
return false;
}
return swoole_http_server_onBeforeRequest(ctx);
}
static int http2_server_parse_header(Http2Session *client, HttpContext *ctx, int flags, const char *in, size_t inlen) {
nghttp2_hd_inflater *inflater = client->inflater;
if (!inflater) {
int ret = nghttp2_hd_inflate_new2(&inflater, php_nghttp2_mem());
if (ret != 0) {
swoole_warning("nghttp2_hd_inflate_new2() failed, Error: %s[%d]", nghttp2_strerror(ret), ret);
return SW_ERR;
}
client->inflater = inflater;
}
if (flags & SW_HTTP2_FLAG_PRIORITY) {
// int stream_deps = ntohl(*(int *) (in));
// uint8_t weight = in[4];
in += 5;
inlen -= 5;
}
zval *zheader = ctx->request.zheader;
zval *zserver = ctx->request.zserver;
ssize_t rv;
for (;;) {
nghttp2_nv nv;
int inflate_flags = 0;
size_t proclen;
rv = nghttp2_hd_inflate_hd(inflater, &nv, &inflate_flags, (uchar *) in, inlen, 1);
if (rv < 0) {
swoole_warning("inflate failed, Error: %s[%zd]", nghttp2_strerror(rv), rv);
return SW_ERR;
}
proclen = (size_t) rv;
in += proclen;
inlen -= proclen;
if (inflate_flags & NGHTTP2_HD_INFLATE_EMIT) {
swoole_trace_log(SW_TRACE_HTTP2,
"name=(%zu)[" SW_ECHO_BLUE "], value=(%zu)[" SW_ECHO_CYAN "]",
nv.namelen,
nv.name,
nv.valuelen,
nv.value);
if (nv.name[0] == ':') {
if (SW_STRCASEEQ((char *) nv.name + 1, nv.namelen - 1, "method")) {
add_assoc_stringl_ex(zserver, ZEND_STRL("request_method"), (char *) nv.value, nv.valuelen);
} else if (SW_STRCASEEQ((char *) nv.name + 1, nv.namelen - 1, "path")) {
char *pathbuf = sw_tg_buffer()->str;
char *v_str = strchr((char *) nv.value, '?');
zend_string *zstr_path;
if (v_str) {
v_str++;
int k_len = v_str - (char *) nv.value - 1;
int v_len = nv.valuelen - k_len - 1;
memcpy(pathbuf, nv.value, k_len);
pathbuf[k_len] = 0;
add_assoc_stringl_ex(zserver, ZEND_STRL("query_string"), v_str, v_len);
zstr_path = zend_string_init(pathbuf, k_len, 0);
// parse url params
sapi_module.treat_data(