Remove ca_cert_downloader plugin, move the functionality to websocket_reverse

Author: stdrc

src/cqhttp/core/common.h

@@ -1,7 +1,5 @@
 #pragma once
 
-#include <ciso646>
-
 #include <nlohmann/json.hpp>
 using json = nlohmann::json;
 

src/cqhttp/plugins/ca_cert_downloader/ca_cert_downloader.cpp

@@ -1,16 +1,46 @@
 #include "./websocket_reverse.h"
 
+#include <filesystem>
+#include <regex>
+
+#include "cqhttp/core/core.h"
+#include "cqhttp/core/helpers.h"
+#include "cqhttp/utils/http.h"
+
 using namespace std;
+namespace fs = std::filesystem;
 
 namespace cqhttp::plugins {
     static const auto TAG = "反向WS";
 
+    using utils::http::download_file;
+    using helpers::get_asset_url;
+
     static string check_ws_url(const string &url) {
-        if (!url.empty() && !regex_search(url, regex("^wss?://"))) {
+        if (!url.empty() && !regex_search(url, regex("^wss?://", regex::icase))) {
             // bad websocket url, we warn the user, and ignore the url
             logging::warning(TAG, u8"反向 WebSocket 服务端地址 " + url + u8" 不是合法地址，将被忽略");
             return "";
         }
+        if (boost::istarts_with(url, "wss://")) {
+            const auto cacert_file = cq::dir::app("tmp") + "cacert.pem";
+            auto ok = true;
+
+            if (!fs::exists(ansi(cacert_file))) {
+                logging::info(
+                    TAG, u8"正在下载 CA 证书文件，这只会在第一次启动时进行，如果耗时较长，请在配置文件中更换更新源");
+                if (download_file(get_asset_url("cacert.pem"), cacert_file, true)) {
+                    logging::info_success(TAG, u8"下载 CA 证书文件成功");
+                } else {
+                    logging::warning(TAG, u8"下载 CA 证书文件失败，可能导致无法 WSS");
+                    ok = false;
+                }
+            }
+
+            if (ok) {
+                app.store().put("cacert_file", cacert_file);
+            }
+        }
         return url;
     }
 

src/cqhttp/plugins/ca_cert_downloader/ca_cert_downloader.h

@@ -6,7 +6,6 @@
 #include "cqhttp/plugins/config_loader/ini_config_loader.h"
 #include "cqhttp/plugins/config_loader/json_config_loader.h"
 
-#include "cqhttp/plugins/ca_cert_downloader/ca_cert_downloader.h"
 #include "cqhttp/plugins/heartbeat_generator/heartbeat_generator.h"
 #include "cqhttp/plugins/loggers/loggers.h"
 #include "cqhttp/plugins/worker_pool_resizer/worker_pool_resizer.h"
@@ -42,7 +41,6 @@ CQ_MAIN {
     // config global things
     use(plugins::loggers);
     use(plugins::worker_pool_resizer);
-    use(plugins::ca_cert_downloader);
     use(plugins::heartbeat_generator);
 
     // extend the Context object