public async Task <Qrcode> GetQrcodeAsync(UserIdentifier userIdentifier, bool checkCanSpread = true)
{
await SpreadManager.CanSpreadAsync(userIdentifier);
Qrcode qrcode = qrcodeRepository.GetAll().Where(model => model.UserId == userIdentifier.UserId).FirstOrDefault();
if (qrcode == null)
{
qrcode = await CreateQrcodeAsync(userIdentifier);
}
return(qrcode);
}
public async Task <Qrcode> CreateQrcodeAsync(UserIdentifier userIdentifier)
{
string appId = await SettingManager.GetSettingValueForTenantAsync(WechatSettings.General.AppId, userIdentifier.TenantId.Value);
string appSecret = await SettingManager.GetSettingValueForTenantAsync(WechatSettings.General.Secret, userIdentifier.TenantId.Value);
Qrcode maxSceneIdQrcode = qrcodeRepository.GetAll().OrderByDescending(model => model.SceneId).FirstOrDefault();
int sceneId = maxSceneIdQrcode == null?1: maxSceneIdQrcode.SceneId + 1;
Qrcode qrcode = new Qrcode()
{
ExpireSeconds = 604800,
UserId = userIdentifier.UserId
};
//大于10万，生成临时二维码
if (sceneId > 100000)
{
qrcode.Type = QrCode_ActionName.QR_LIMIT_SCENE;
}
else
{
qrcode.SceneId = sceneId;
qrcode.Type = QrCode_ActionName.QR_SCENE;
}
string accessToken = AccessTokenContainer.TryGetAccessToken(appId, appSecret);
CreateQrCodeResult createQrCodeResult = QrCodeApi.Create(
accessToken,
qrcode.ExpireSeconds,
qrcode.SceneId,
qrcode.Type);
qrcode.Ticket = createQrCodeResult.ticket;
qrcode.ExpireSeconds = createQrCodeResult.expire_seconds;
qrcode.Url = createQrCodeResult.url;
string qrcodePreUrl = String.Format(qrcodePreUrlBaseFormat, qrcode.Ticket);
qrcode.Path = GetQrcodeFolderPathOfUser(userIdentifier.UserId) + "/" + qrcode.SceneId + ".png";
Image.GetAndSaveImage(qrcodePreUrl, HttpContext.Current.Server.MapPath(qrcode.Path));
qrcodeRepository.Insert(qrcode);
return(qrcode);
}
