- php_stream_printf(ctx->stream TSRMLS_CC, "HTTP/%u.%u %ld %s" PHP_HTTP_CRLF, ctx->version.major, ctx->version.minor, ctx->status_code, php_http_env_get_response_status_for_code(ctx->status_code));
- php_http_env_response_stream_header(ctx, &ctx->header TSRMLS_CC);
+ php_http_buffer_init(&header_buf);
+ php_http_buffer_appendf(&header_buf, "HTTP/%u.%u %ld %s" PHP_HTTP_CRLF, ctx->version.major, ctx->version.minor, ctx->status_code, php_http_env_get_response_status_for_code(ctx->status_code));
+
+ /* there are some limitations regarding TE:chunked, see https://tools.ietf.org/html/rfc7230#section-3.3.1 */
+ if (ctx->version.major == 1 && ctx->version.minor == 0) {
+ ctx->chunked = 0;
+ } else if (ctx->status_code == 204 || ctx->status_code/100 == 1) {
+ ctx->chunked = 0;
+ } else if (ctx->request && ctx->status_code/100 == 2 && !strcasecmp(ctx->request->http.info.request.method, "CONNECT")) {
+ ctx->chunked = 0;
+ }
+
+ php_http_env_response_stream_header(ctx, &ctx->header, &header_buf TSRMLS_CC);
+