/// <summary>
/// 获取微信图片、音频素材（除了图文、视频）
/// </summary>
/// <param name="mediaId"></param>
/// <returns></returns>
public async Task <Stream> GetForeverMediaAsync(string appId, string mediaId)
{
MemoryStream stream = new MemoryStream();
{
await MediaApi.GetForeverMediaAsync(appId, mediaId, stream);
stream.Position = 0;
return(stream);
}
}
public async Task PullMaterialAsync(string accessTokenOrAppId, MaterialType materialType, int groupId)
{
var count = await MediaApi.GetMediaCountAsync(accessTokenOrAppId);
if (materialType == MaterialType.Message)
{
if (count.news_count > 0)
{
var newsList = await MediaApi.GetNewsMediaListAsync(accessTokenOrAppId, 0, count.news_count);
newsList.item.Reverse();
foreach (var message in newsList.item)
{
if (await _materialMessageRepository.IsExistsAsync(message.media_id))
{
continue;
}
//var news = await MediaApi.GetForeverNewsAsync(accessTokenOrAppId, message.media_id);
var messageItems = new List <MaterialMessageItem>();
foreach (var item in message.content.news_item)
{
var imageUrl = string.Empty;
if (!string.IsNullOrEmpty(item.thumb_media_id) && !string.IsNullOrEmpty(item.thumb_url))
{
await using var ms = new MemoryStream();
await MediaApi.GetForeverMediaAsync(accessTokenOrAppId, item.thumb_media_id, ms);
ms.Seek(0, SeekOrigin.Begin);
var extName = "png";
if (StringUtils.Contains(item.thumb_url, "wx_fmt="))
{
extName = item.thumb_url.Substring(item.thumb_url.LastIndexOf("=", StringComparison.Ordinal) + 1);
}
var materialFileName = PathUtils.GetMaterialFileNameByExtName(extName);
var virtualDirectoryPath = PathUtils.GetMaterialVirtualDirectoryPath(UploadType.Image);
var directoryPath = PathUtils.Combine(_settingsManager.WebRootPath, virtualDirectoryPath);
var filePath = PathUtils.Combine(directoryPath, materialFileName);
await FileUtils.WriteStreamAsync(filePath, ms);
imageUrl = PageUtils.Combine(virtualDirectoryPath, materialFileName);
}
else if (!string.IsNullOrEmpty(item.thumb_url))
{
var extName = "png";
if (StringUtils.Contains(item.thumb_url, "wx_fmt="))
{
extName = item.thumb_url.Substring(item.thumb_url.LastIndexOf("=", StringComparison.Ordinal) + 1);
}
var materialFileName = PathUtils.GetMaterialFileNameByExtName(extName);
var virtualDirectoryPath = PathUtils.GetMaterialVirtualDirectoryPath(UploadType.Image);
var directoryPath = PathUtils.Combine(_settingsManager.WebRootPath, virtualDirectoryPath);
var filePath = PathUtils.Combine(directoryPath, materialFileName);
WebClientUtils.Download(item.thumb_url, filePath);
imageUrl = PageUtils.Combine(virtualDirectoryPath, materialFileName);
}
var commentType = CommentType.Block;
if (item.need_open_comment == 1)
{
commentType = item.only_fans_can_comment == 1 ? CommentType.OnlyFans : CommentType.Everyone;
}
messageItems.Add(new MaterialMessageItem
{
MessageId = 0,
MaterialType = MaterialType.Article,
MaterialId = 0,
Taxis = 0,
ThumbMediaId = item.thumb_media_id,
Author = item.author,
Title = item.title,
ContentSourceUrl = item.content_source_url,
Content = SaveImages(item.content),
Digest = item.digest,
ShowCoverPic = item.show_cover_pic == "1",
ThumbUrl = imageUrl,
Url = item.url,
CommentType = commentType
});
}
await _materialMessageRepository.InsertAsync(groupId, message.media_id, messageItems);
}
}
}
else if (materialType == MaterialType.Image)
{
if (count.image_count > 0)
{
var list = await MediaApi.GetOthersMediaListAsync(accessTokenOrAppId, UploadMediaFileType.image, 0, count.image_count);
foreach (var image in list.item)
{
if (await _materialImageRepository.IsExistsAsync(image.media_id))
{
continue;
}
await using var ms = new MemoryStream();
await MediaApi.GetForeverMediaAsync(accessTokenOrAppId, image.media_id, ms);
ms.Seek(0, SeekOrigin.Begin);
var extName = image.url.Substring(image.url.LastIndexOf("=", StringComparison.Ordinal) + 1);
var materialFileName = PathUtils.GetMaterialFileNameByExtName(extName);
var virtualDirectoryPath = PathUtils.GetMaterialVirtualDirectoryPath(UploadType.Image);
var directoryPath = PathUtils.Combine(_settingsManager.WebRootPath, virtualDirectoryPath);
var filePath = PathUtils.Combine(directoryPath, materialFileName);
await FileUtils.WriteStreamAsync(filePath, ms);
var material = new MaterialImage
{
GroupId = groupId,
Title = image.name,
Url = PageUtils.Combine(virtualDirectoryPath, materialFileName),
MediaId = image.media_id
};
await _materialImageRepository.InsertAsync(material);
}
}
}
else if (materialType == MaterialType.Audio)
{
if (count.voice_count > 0)
{
var list = await MediaApi.GetOthersMediaListAsync(accessTokenOrAppId, UploadMediaFileType.voice, 0, count.voice_count);
foreach (var voice in list.item)
{
if (await _materialAudioRepository.IsExistsAsync(voice.media_id))
{
continue;
}
await using var ms = new MemoryStream();
await MediaApi.GetForeverMediaAsync(accessTokenOrAppId, voice.media_id, ms);
ms.Seek(0, SeekOrigin.Begin);
var extName = voice.url.Substring(voice.url.LastIndexOf("=", StringComparison.Ordinal) + 1);
var materialFileName = PathUtils.GetMaterialFileNameByExtName(extName);
var virtualDirectoryPath = PathUtils.GetMaterialVirtualDirectoryPath(UploadType.Audio);
var directoryPath = PathUtils.Combine(_settingsManager.WebRootPath, virtualDirectoryPath);
var filePath = PathUtils.Combine(directoryPath, materialFileName);
await FileUtils.WriteStreamAsync(filePath, ms);
var audio = new MaterialAudio
{
GroupId = groupId,
Title = voice.name,
FileType = extName.ToUpper().Replace(".", string.Empty),
Url = PageUtils.Combine(virtualDirectoryPath, materialFileName),
MediaId = voice.media_id
};
await _materialAudioRepository.InsertAsync(audio);
}
}
}
else if (materialType == MaterialType.Video)
{
if (count.video_count > 0)
{
var list = await MediaApi.GetOthersMediaListAsync(accessTokenOrAppId, UploadMediaFileType.video, 0, count.video_count);
foreach (var video in list.item)
{
if (await _materialVideoRepository.IsExistsAsync(video.media_id))
{
continue;
}
await using var ms = new MemoryStream();
await MediaApi.GetForeverMediaAsync(accessTokenOrAppId, video.media_id, ms);
ms.Seek(0, SeekOrigin.Begin);
var extName = "mp4";
if (!string.IsNullOrEmpty(video.url))
{
extName = video.url.Substring(video.url.LastIndexOf("=", StringComparison.Ordinal) + 1);
}
var materialFileName = PathUtils.GetMaterialFileNameByExtName(extName);
var virtualDirectoryPath = PathUtils.GetMaterialVirtualDirectoryPath(UploadType.Video);
var directoryPath = PathUtils.Combine(_settingsManager.WebRootPath, virtualDirectoryPath);
var filePath = PathUtils.Combine(directoryPath, materialFileName);
await FileUtils.WriteStreamAsync(filePath, ms);
var material = new MaterialVideo
{
GroupId = groupId,
Title = video.name,
FileType = extName.ToUpper().Replace(".", string.Empty),
Url = PageUtils.Combine(virtualDirectoryPath, materialFileName),
MediaId = video.media_id
};
await _materialVideoRepository.InsertAsync(material);
}
}
}
}