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VkApi.cs
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VkApi.cs
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using System;
using Oxide.Core.Plugins;
using UnityEngine;
using Newtonsoft.Json.Linq;
using Oxide.Core;
using System.Collections;
using System.Collections.Generic;
using System.Linq;
using UnityEngine.Networking;
using Newtonsoft.Json;
namespace Oxide.Plugins
{
[Info("VK API", "NickRimmer", "1.0.0")]
[Description("Provided methods to send VK messages")]
public class VkApi : CovalencePlugin
{
private VkComponent _vk;
private PluginConfig _config;
private void Init()
{
LogToFile("Initialization...");
_config = Config.ReadObject<PluginConfig>();
if (string.IsNullOrEmpty(_config.Token))
{
var message = "Community token required";
PrintWarning(message);
LogToFile(message);
return;
}
_vk = VkComponent.Create(_config.Token, _config.MuteMessageDisallowed);
}
[HookMethod("SendText")]
public void SendText(string vkUserId, string message)
{
LogToFile($"Sending message to {vkUserId}: {message}");
_vk.SendTextMessage(vkUserId, message);
}
private void Unload()
{
LogToFile("Unloaded");
GameObject.Destroy(_vk);
}
private void OnVkConnected()
{
var message = "VK Api connected!";
LogToFile(message);
Puts(message);
}
protected override void LoadDefaultConfig()
=> Config.WriteObject(new PluginConfig(), true);
private void LogToFile(string message)
{
if (_config?.LogToFile != true) return;
var timestamp = DateTime.Now.ToString("HH:mm:ss");
message = $"{timestamp} | {message}";
LogToFile("common", message, this);
}
private void OnVkMessageSent(string vkUserId, string message)
=> LogToFile($"Message to user {vkUserId} sent: {message}");
private void OnVkError(byte code, string description, int vkApiCode, string vkUserId)
=> LogToFile($"Error: {code}; Description: {description}; VK API code: {vkApiCode}; VK User id: {vkUserId}");
#region Shared.Components
private class VkComponent : MonoBehaviour
{
private const float PostDelay = .5f;
private const string VkApiVersion = "5.37";
private const string VkApiUrl = "https://api.vk.com/method";
private readonly Queue<BaseRequest> _queue = new Queue<BaseRequest>();
private string _communityToken;
private bool _busy = false;
private static bool _muteMessagesNotAllowed;
private enum Errors : byte
{
Network = 1,
TokenEmpty = 2,
Api = 3,
Disallowed = 4
}
public static VkComponent Create(string communityToken, bool muteMessagesNotAllowed)
{
_muteMessagesNotAllowed = muteMessagesNotAllowed;
return new GameObject()
.AddComponent<VkComponent>()
.Configure(communityToken)
.ConnectionTest();
}
public VkComponent SendTextMessage(string vkUserId, string message, Action<string, string> callback = null)
{
var request = new PersonalMessageRequest(vkUserId, message);
request.OnResponse(_ =>
{
callback?.Invoke(vkUserId, message);
Interface.CallHook("OnVkMessageSent", vkUserId, message);
});
return AddQueue(request);
}
#region Boring things
private VkComponent Configure(string communityToken)
{
if (communityToken == null) throw new ArgumentNullException(nameof(communityToken));
_communityToken = communityToken;
return this;
}
private VkComponent ConnectionTest() =>
AddQueue(new SearchMessageRequest("*", 1).OnResponse(_ => Interface.CallHook("OnVkConnected")));
private static string UrlEncode(string input)
{
var replaces = new Dictionary<string, string>
{
{"#", "%23"},
{"$", "%24"},
{"&", "%26"},
{"+", "%2B"},
{",", "%2C"},
{"/", "%2F"},
{":", "%3A"},
{";", "%3B"},
{"=", "%3D"},
{"?", "%3F"},
{"@", "%40"},
{" ", "%20"}
};
return replaces.Aggregate(
input,
(result, rule) => result.Replace(rule.Key, rule.Value));
}
#endregion
#region VK magic
private VkComponent AddQueue(BaseRequest request)
{
_queue.Enqueue(request);
if (!_busy) StartCoroutine(ProcessQueue());
return this;
}
private IEnumerator ProcessQueue()
{
if (_busy) yield break;
_busy = true;
while (_queue.Any())
{
var request = _queue.Dequeue();
yield return ProcessRequest(request);
}
_busy = false;
}
private IEnumerator ProcessRequest(BaseRequest request)
{
if (string.IsNullOrEmpty(_communityToken))
{
Debug.LogError($"[{GetType().Name}] token wasn't specified");
Interface.CallHook("OnVkError", (byte)Errors.TokenEmpty, "Token wasn't specified");
yield break;
}
var url = $"{VkApiUrl}/{request}&v={VkApiVersion}&access_token={_communityToken}";
var www = UnityWebRequest.Get(url);
yield return www.SendWebRequest();
var respText = www.downloadHandler?.text;
if (www.isNetworkError || www.isHttpError)
{
Debug.LogError($"[{GetType().Name}] {www.error} | {respText}");
Interface.CallHook("OnVkError", (byte)Errors.Network, "Network or HTTP error");
}
else if (string.IsNullOrEmpty(respText)) request.InvokeOnResponse(null);
else if(IsResponseVkError(respText)) yield break;
else request.InvokeOnResponse(respText);
www.Dispose();
// to avoid spam requests
yield return new WaitForSeconds(PostDelay);
}
private bool IsResponseVkError(string json)
{
var respJson = JObject.Parse(json).First as JProperty;
if (respJson?.Name.Equals("error", StringComparison.InvariantCultureIgnoreCase) != true)
return false;
var eCode = respJson.Value["error_code"]?.Value<int>();
var eMessage = respJson.Value["error_msg"]?.Value<string>();
var eUserId = (respJson
.Value["request_params"]
?.FirstOrDefault(x => x["key"]?.Value<string>() == "user_id")
?["value"] as JValue)
?.Value;
var message = $"[{GetType().Name}] vkUserId: {eUserId ?? "-"}; Error '{eCode}': {eMessage}";
if (eCode == 901) // user doesn't allow messages from community
{
if (!_muteMessagesNotAllowed) Debug.LogWarning(message);
Interface.CallHook("OnVkError", (byte)Errors.Disallowed, eMessage, eCode, eUserId);
}
else
{
Debug.LogError(message);
Interface.CallHook("OnVkError", (byte)Errors.Api, eMessage, eCode);
}
return true;
}
private void OnDestroy()
{
_queue.Clear();
}
private abstract class BaseRequest
{
private Action<string> _action = null;
public void InvokeOnResponse(string json) => _action?.Invoke(json);
public BaseRequest OnResponse(Action<string> action)
{
_action = action;
return this;
}
}
#endregion
#region Requests
private class PersonalMessageRequest : BaseRequest
{
private readonly string _message;
private readonly string _vkUserId;
public PersonalMessageRequest(string vkUserId, string message)
{
if (string.IsNullOrEmpty(message)) throw new ArgumentNullException(nameof(message));
if (string.IsNullOrEmpty(vkUserId)) throw new ArgumentNullException(nameof(vkUserId));
_message = UrlEncode(message);
_vkUserId = vkUserId;
}
public override string ToString()
=> $"messages.send?user_id={_vkUserId}&message={_message}";
}
private class SearchMessageRequest : BaseRequest
{
private readonly string _s;
private readonly int _limit;
public SearchMessageRequest(string s, int limit)
{
if (s == null) throw new ArgumentNullException(nameof(s));
_s = UrlEncode(s);
_limit = limit;
}
public override string ToString()
=> $"messages.search?count={_limit}&q={_s}";
}
#endregion
}
#endregion
#region VkApi.Models
private class PluginConfig
{
[JsonProperty("VK community token")]
public string Token { get; set; }
[JsonProperty("Don't show warnings when messages not allowed")]
public bool MuteMessageDisallowed { get; set; }
[JsonProperty("Log events to file")]
public bool LogToFile { get; set; } = true;
}
#endregion
}
}