protected virtual IDictionary <string, string> GenerateParameters(Options.IAppOption app, PushingSenderSettings settings)
{
var center = PushingServiceCenter.GetInstance(this.GetRegion(app));
var dictionary = new Dictionary <string, string>()
{
//推送方式（高级推送）
{ "Action", "Push" },
//以下是公共参数部分
{ "Format", "JSON" },
{ "RegionId", center.Alias },
{ "Version", "2016-08-01" },
{ "AccessKeyId", this.GetCertificate(app).Name },
{ "SignatureMethod", "HMAC-SHA1" },
{ "SignatureVersion", "1.0" },
{ "SignatureNonce", ((ulong)Zongsoft.Common.Randomizer.GenerateInt64()).ToString() },
{ "Timestamp", Utility.GetTimestamp() },
//以下是推送接口特定参数
{ "AppKey", app.Code },
{ "PushType", settings.Type.ToString().ToUpperInvariant() },
{ "DeviceType", settings.DeviceType.ToString().ToUpperInvariant() },
{ "Target", settings.TargetType.ToString().ToUpperInvariant() },
};
if (settings.Expiry > 0)
{
dictionary["StoreOffline"] = "true";
dictionary["ExpireTime"] = DateTime.UtcNow.AddMinutes(settings.Expiry).ToString("s") + "Z";
}
return(dictionary);
}
/// <summary>
/// 发送消息或通知到移动设备。
/// </summary>
/// <param name="name">指定的消息推送应用的名字。</param>
/// <param name="title">指定的消息或通知的标题。</param>
/// <param name="content">指定的消息或通知的内容。</param>
/// <param name="destination">指定的推送目标。</param>
/// <param name="settings">指定的推送设置参数。</param>
/// <returns>返回推送的结果。</returns>
public async Task <PushingResult> SendAsync(string name, string title, string content, string destination, PushingSenderSettings settings)
{
if (string.IsNullOrWhiteSpace(name))
{
throw new ArgumentNullException(nameof(name));
}
if (string.IsNullOrWhiteSpace(destination))
{
throw new ArgumentNullException(nameof(destination));
}
if (string.IsNullOrWhiteSpace(content))
{
return(null);
}
//确认移动推送的配置
var configuration = this.EnsureConfiguration();
//获取指定名称的短信模板配置，如果获取失败则抛出异常
if (!configuration.Apps.TryGet(name, out var app))
{
throw new InvalidOperationException($"The specified '{name}' app is not existed.");
}
//获取当前短信模板关联的凭证
var certificate = this.GetCertificate(app);
//生成请求的查询参数集
var parameters = this.GenerateParameters(app, settings);
parameters["TargetValue"] = destination;
parameters["Title"] = string.IsNullOrWhiteSpace(title) ? "New " + settings.Type.ToString() : title;
parameters["Body"] = content;
//获取当前应用所在的服务区域
var center = PushingServiceCenter.GetInstance(this.GetRegion(app));
//构建移动推送的HTTP请求消息包
var request = new HttpRequestMessage(HttpMethod.Get, "http://" + center.Path + "?" + Utility.GetQueryString(parameters));
request.Headers.Accept.TryParseAdd("application/json");
//获取当前实例关联的HTTP客户端程序
var http = this.GetHttpClient(certificate);
//提交移动推送请求
var response = await http.SendAsync(request);
return(await this.GetResultAsync(response.Content));
}