更新 src/tencent_cos.cpp

src/tencent_cos.cpp

@@ -192,7 +192,67 @@ std::string module::tencent_cos::del(const std::string& appid,const std::string&
     cos_pool_destroy(p);
     return result;
 }
+std::pair<std::string,bool> module::tencent_cos::exist(const std::string& appid,const std::string& endpoint,const std::string& access_key_id,const std::string& access_key_secret,const std::string& bucket_name,const std::string& object_name)
+{
+
+    int enable_checkpoint = COS_FALSE; // 是否开启断点续传
+    cos_pool_t* p = NULL;
+    cos_string_t bucket;
+    cos_string_t object;
+    cos_string_t filename;
+    cos_status_t* s = NULL;
+    cos_table_t* headers = NULL;
+    cos_table_t* resp_headers = NULL;
+    cos_request_options_t* options = NULL;
+    cos_resumable_clt_params_t* clt_params;
+    cos_pool_create(&p, NULL);
 
+
+    
+    options = cos_request_options_create(p);
+
+    options->config = cos_config_create(options->pool);
+
+    cos_str_set(&options->config->endpoint, endpoint.c_str());
+    cos_str_set(&options->config->access_key_id, access_key_id.c_str());
+    cos_str_set(&options->config->access_key_secret, access_key_secret.c_str());
+    cos_str_set(&options->config->appid, appid.c_str());
+    // cos_str_set(&config->sts_token, token);  // 使用临时密钥时的 token
+    options->config->is_cname = COS_FALSE;  // 是否使用自定义域名
+
+
+    options->ctl = cos_http_controller_create(options->pool, 0);
+
+
+    headers = cos_table_make(p, 0);
+    cos_str_set(&bucket, bucket_name.c_str());
+    cos_str_set(&object, object_name.c_str());
+
+
+
+    cos_object_exist_status_e object_exist;
+    s = cos_check_object_exist(options, &bucket, &object, headers, &object_exist, &resp_headers);
+
+    
+    std::string result = "";
+    bool exist = false;
+    if (cos_status_is_ok(s)) {
+        result = "";
+        if (object_exist == COS_OBJECT_NON_EXIST) {
+            exist = false;
+        } else if (object_exist == COS_OBJECT_EXIST) {
+            exist = true;
+        } else {
+           exist = false;
+        }
+    }
+    else
+    {
+        result = "code:" + std::to_string(s->code)+", error_code:"+s->error_code+", error_msg:"+s->error_msg;
+    }
+    cos_pool_destroy(p);
+    return {result,exist};
+}
 void module::tencent_cos::regist(sol::state* lua)
 {
     lua->new_usertype<module::tencent_cos>("fw_tencent_cos",