private static async Task DownloadFromUrl(StorageFile file)
{
// Try to read .url file.
string url = await ParseInternetShortcut(file);
// Parse URL.
if (Uri.TryCreate(url, UriKind.Absolute, out var uri) &&
(uri.Scheme == Uri.UriSchemeHttp || uri.Scheme == Uri.UriSchemeHttps)) // This is true if file is online.
{
// Check to make sure this URL points to a file and not a webpage.
if (Path.HasExtension(uri.AbsoluteUri))
{
// Get MIME type of online file.
var mimeType = MimeTypeMap.GetMimeType(Path.GetExtension(uri.AbsoluteUri));
// Check if MIME type of online file is supported.
if (FileTypes.IsSupportedMIME(mimeType))
{
// Get folder.
var folder = await StorageApplicationPermissions.FutureAccessList.GetFolderAsync("gallery");
// Download without awaiting so the UI doesn't freeze.
OnlineUtil.DownloadFile(uri, folder);
}
}
}
}
private static async Task DownloadFromRedditUriAsync(Uri redditUri)
{
// Get JSON version of reddit page.
var json = await App.HttpClient.GetStringAsync(redditUri.ToString() + "/.json");
var jsonDatas = JArray.Parse(json);
var jsonData = jsonDatas.FirstOrDefault();
//string imageUrl = jsonData?.data?.children[0]?.data?.url;
var imageUrl = jsonData?.Value <JToken>("data")?.Value <JArray>("children")?.FirstOrDefault()?.Value <JToken>("data")?.Value <string>("url") ?? string.Empty;
if (string.IsNullOrEmpty(imageUrl))
{
return;
}
// Parse URL.
if (Uri.TryCreate(imageUrl, UriKind.Absolute, out var imageUri) &&
(imageUri.Scheme == Uri.UriSchemeHttp || imageUri.Scheme == Uri.UriSchemeHttps)) // This is true if file is online.
{
// Check to make sure this URL points to a file and not a webpage.
if (Path.HasExtension(imageUri.AbsoluteUri))
{
await DownloadFromUriAsync(imageUri);
}
else // It might be a video, check if it is.
{
string videoUrl = jsonData?.Value <JToken>("data")?.Value <JArray>("children")?.FirstOrDefault()?.Value <JToken>("data")?.Value <JToken>("media")?.Value <JToken>("reddit_video")?.Value <string>("fallback_url") ?? string.Empty;
if (string.IsNullOrEmpty(videoUrl))
{
return;
}
// Parse URL.
if (Uri.TryCreate(videoUrl, UriKind.Absolute, out var videoUri) &&
(videoUri.Scheme == Uri.UriSchemeHttp || videoUri.Scheme == Uri.UriSchemeHttps)) // This is true if file is online.
{
var urlContentType = await GetUrlContentTypeAsync(videoUrl);
// Check if url points to video before downloading.
if (urlContentType.StartsWith("video/"))
{
// Get folder.
var folder = await StorageApplicationPermissions.FutureAccessList.GetFolderAsync("gallery");
// Append extension to uri.
var fileName = videoUri.Segments[videoUri.Segments.Length - 1] + $".{urlContentType.Split("/").LastOrDefault() ?? "mp4"}";
// Download without awaiting so the UI doesn't freeze.
OnlineUtil.DownloadFile(videoUri, fileName, folder);
}
}
}
}
}
private static async Task DownloadFromUriAsync(Uri uri)
{
// Check to make sure this URL points to a file and not a webpage.
if (Path.HasExtension(uri.AbsoluteUri))
{
// Get MIME type of online file.
var mimeType = MimeTypeMap.GetMimeType(Path.GetExtension(uri.AbsoluteUri));
// Check if MIME type of online file is supported.
if (FileTypes.IsSupportedMIME(mimeType))
{
// Get folder.
var folder = await StorageApplicationPermissions.FutureAccessList.GetFolderAsync("gallery");
// Download without awaiting so the UI doesn't freeze.
OnlineUtil.DownloadFile(uri, folder);
}
}
}
public async void SearchForHigherResolutionOnlineAsync()
{
// Don't scan for videos.
if (MediaData is VideoData)
{
return;
}
var onlineMedias = new Dictionary <Uri, (Size, long)>();
// Get file size and dimensions of every fully matched image.
foreach (var webImage in FullyMatchedImages)
{
// Parse URL.
if (Uri.TryCreate(webImage.Url, UriKind.Absolute, out var uri))
{
// Check to make sure this URL points to a file and not a webpage.
if (Path.HasExtension(uri.AbsoluteUri))
{
// Get MIME type of online file.
var mimeType = MimeTypeMap.GetMimeType(Path.GetExtension(uri.AbsoluteUri));
// Check if MIME type of online file is supported.
if (FileTypes.IsSupportedMIME(mimeType))
{
try
{
// Get dimensions of online image.
var dimensions = await ImageUtilities.GetWebDimensionsAsync(uri);
// If dimensions is empty, continue.
if (dimensions.IsEmpty)
{
continue;
}
// Get file size of online image.
var contentLength = await OnlineUtil.GetContentSizeAsync(uri);
// Add to dictionary.
onlineMedias.Add(uri, (dimensions, contentLength));
}
catch (Exception e)
{
// Log Exception.
LifecycleLog.Exception(e);
}
}
}
}
}
// If these are null then no comparisons can be made.
if (MediaData?.Meta == null)
{
return;
}
if (MediaData?.BasicProperties == null)
{
return;
}
// Check if any of the fully matched images are higher resolution or larger than local file.
var largerMedia = new KeyValuePair <Uri, (Size, long)>();
foreach (var urlAndData in onlineMedias)
{
var url = urlAndData.Key;
var(dimensions, contentLength) = urlAndData.Value;
// If online media is larger in file size than local media.
if (contentLength > (long)MediaData.BasicProperties.Size)
{
// If size of this online media is larger than the currently largest media.
if (Math.Max(largerMedia.Value.Item2, contentLength) == contentLength)
{
largerMedia = urlAndData; // Update largerMedia.
}
}
else if (dimensions.Height > MediaData.Meta.Height && // If online media is larger in both width and height
dimensions.Width > MediaData.Meta.Width) // than the local media.
{
// If dimensions of this online media is larger than the currently largest media.
if (Math.Max(largerMedia.Value.Item1.Height, dimensions.Height) == dimensions.Height &&
Math.Max(largerMedia.Value.Item1.Width, dimensions.Width) == dimensions.Width)
{
largerMedia = urlAndData; // Update largerMedia.
}
}
}
// If no larger media has been found, return.
if (largerMedia.Key == null)
{
return;
}
// Set property.
LargerMedia = largerMedia.Key;
}
