1、即使是相同的短信签名与短信正文模板,也需要针对“国内文本短信”与“海外文本短信”分别申请。开始不知道,以为只要申请一次,给国外手机发短信时给api传对应的国家码就行,后来才发现需要分别申请。
2、短信服务web api响应“手机号内容频率限制”错误。这是由于在30秒内向同一手机号多次发送了相同内容的短信,这是腾讯云短信服务的默认限制——“相同内容短信对同一个手机号,30秒内发送短信条数不超过1条”,可以通过“应用配置”的“短信频率配置”修改这个限制。
3、腾讯云短信服务没有提供 .NET Core 的 SDK,我们自己实现的代码如下:
public class TencentCloudSmsService : ISmsService { private static readonly HttpClient _httpClient = new HttpClient { BaseAddress = new Uri("https://yun.tim.qq.com") }; private readonly string _appId; private readonly string _appKey; private const string SIGNATURE = "..."; private const int DOMESTIC_TEMPLATE_ID = 1234; private const int OVERSEA_TEMPLATE_ID = 5678; private readonly ILogger _logger; public TencentCloudSmsService(IConfiguration conf, ILoggerFactory loggerFactory) { _appId = conf["tencentCloudSms:appId"]; if (string.IsNullOrEmpty(_appId)) throw new ArgumentException($"{nameof(_appId)} must have a value"); _appKey = conf["tencentCloudSms:appKey"]; if (string.IsNullOrEmpty(_appKey)) throw new ArgumentException($"{nameof(_appKey)} must have a value"); _logger = loggerFactory.CreateLogger<TencentCloudSmsService>(); } public async Task<bool> SendCode(string countryCode, long mobile, int code) { var random = GetRandom(); var timestamp = DateTimeOffset.Now.ToUnixTimeSeconds(); var data = new { tel = new { nationcode = countryCode.Replace("+", ""), mobile = mobile.ToString() }, sign = SIGNATURE, tpl_id = countryCode == "+86" ? DOMESTIC_TEMPLATE_ID : OVERSEA_TEMPLATE_ID , @params = new[] { code.ToString() }, sig = ComputeSignature(mobile, random, timestamp), time = timestamp, extend = "", ext = "" }; var url = $"/v5/tlssmssvr/sendsms?sdkappid={_appId}&random={random}"; _logger.LogDebug("Post to " + _httpClient.BaseAddress + url); var response = await _httpClient.PostAsJsonAsync<dynamic>(url, data); _logger.LogDebug("Post data:\n" + JsonConvert.SerializeObject(data)); response.EnsureSuccessStatusCode(); var result = await response.Content.ReadAsAsync<dynamic>(); if(result.result != 0) { _logger.LogError($"Failed to send message to {countryCode}-{mobile}: {result.errmsg}"); return false; } return true; } private string ComputeSignature(long mobile, int random, long timestamp) { var input = $"appkey={_appKey}&random={random}&time={timestamp}&mobile={mobile}"; var hasBytes = SHA256.Create().ComputeHash(Encoding.UTF8.GetBytes(input)); return string.Join("", hasBytes.Select(b => b.ToString("x2"))); } private int GetRandom() { return new Random().Next(100000, 999999); } }
时间: 2024-10-27 17:55:43