127afd4da1
There are three handler that need to be patched all at once with the server itself being marked with set_content_streaming For two simple handler just get the content string with read_entire_stream_contiguous helper. This is what httpd server did anyway. The "start_restore" handler used the contiguous contents to parse json from using rjson utility. This handler is patched to use read_entire_stream() that returns a vector of temporary buffers. The rjson parser has a helper to pars from that vector, so the change is also optimization. Signed-off-by: Pavel Emelyanov <xemul@scylladb.com>
107 lines
4.0 KiB
C++
107 lines
4.0 KiB
C++
/*
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* Copyright (C) 2020-present ScyllaDB
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*/
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/*
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* SPDX-License-Identifier: LicenseRef-ScyllaDB-Source-Available-1.0
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*/
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#include "api/api-doc/error_injection.json.hh"
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#include "api/api_init.hh"
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#include <seastar/http/exception.hh>
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#include "utils/error_injection.hh"
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#include "utils/rjson.hh"
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#include <seastar/core/future-util.hh>
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#include <seastar/util/short_streams.hh>
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namespace api {
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using namespace seastar::httpd;
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namespace hf = httpd::error_injection_json;
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void set_error_injection(http_context& ctx, routes& r) {
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hf::enable_injection.set(r, [](std::unique_ptr<request> req) -> future<json::json_return_type> {
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sstring injection = req->get_path_param("injection");
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bool one_shot = req->get_query_param("one_shot") == "True";
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auto params = co_await util::read_entire_stream_contiguous(*req->content_stream);
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const size_t max_params_size = 1024 * 1024;
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if (params.size() > max_params_size) {
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// This is a hard limit, because we don't want to allocate
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// too much memory or block the thread for too long.
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throw httpd::bad_param_exception(format("Injection parameters are too long, max length is {}", max_params_size));
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}
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try {
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auto parameters = params.empty()
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? utils::error_injection_parameters{}
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: rjson::parse_to_map<utils::error_injection_parameters>(params);
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auto& errinj = utils::get_local_injector();
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co_await errinj.enable_on_all(injection, one_shot, std::move(parameters));
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} catch (const rjson::error& e) {
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throw httpd::bad_param_exception(format("Failed to parse injections parameters: {}", e.what()));
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}
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co_return json::json_void();
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});
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hf::get_enabled_injections_on_all.set(r, [](std::unique_ptr<request> req) {
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auto& errinj = utils::get_local_injector();
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auto ret = errinj.enabled_injections_on_all();
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return make_ready_future<json::json_return_type>(ret);
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});
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hf::disable_injection.set(r, [](std::unique_ptr<request> req) {
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sstring injection = req->get_path_param("injection");
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auto& errinj = utils::get_local_injector();
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return errinj.disable_on_all(injection).then([] {
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return make_ready_future<json::json_return_type>(json::json_void());
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});
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});
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hf::read_injection.set(r, [](std::unique_ptr<request> req) -> future<json::json_return_type> {
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const sstring injection = req->get_path_param("injection");
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std::vector<error_injection_json::error_injection_info> error_injection_infos(smp::count, error_injection_json::error_injection_info{});
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co_await smp::invoke_on_all([&] {
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auto& info = error_injection_infos[this_shard_id()];
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auto& errinj = utils::get_local_injector();
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const auto enabled = errinj.is_enabled(injection);
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info.enabled = enabled;
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if (!enabled) {
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return;
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}
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std::vector<error_injection_json::mapper> parameters;
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for (const auto& p : errinj.get_injection_parameters(injection)) {
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error_injection_json::mapper param;
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param.key = p.first;
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param.value = p.second;
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parameters.push_back(std::move(param));
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}
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info.parameters = std::move(parameters);
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});
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co_return json::json_return_type(error_injection_infos);
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});
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hf::disable_on_all.set(r, [](std::unique_ptr<request> req) {
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auto& errinj = utils::get_local_injector();
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return errinj.disable_on_all().then([] {
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return make_ready_future<json::json_return_type>(json::json_void());
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});
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});
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hf::message_injection.set(r, [](std::unique_ptr<request> req) {
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sstring injection = req->get_path_param("injection");
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auto& errinj = utils::get_local_injector();
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return errinj.receive_message_on_all(injection).then([] {
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return make_ready_future<json::json_return_type>(json::json_void());
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});
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});
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}
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} // namespace api
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