ImageService.cs 27 KB

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  1. using System;
  2. using System.Collections.Generic;
  3. using System.Globalization;
  4. using System.IO;
  5. using System.Linq;
  6. using System.Runtime.CompilerServices;
  7. using System.Threading;
  8. using System.Threading.Tasks;
  9. using MediaBrowser.Common.Extensions;
  10. using MediaBrowser.Controller.Configuration;
  11. using MediaBrowser.Controller.Drawing;
  12. using MediaBrowser.Controller.Dto;
  13. using MediaBrowser.Controller.Entities;
  14. using MediaBrowser.Controller.Library;
  15. using MediaBrowser.Controller.Net;
  16. using MediaBrowser.Controller.Providers;
  17. using MediaBrowser.Model.Drawing;
  18. using MediaBrowser.Model.Dto;
  19. using MediaBrowser.Model.Entities;
  20. using MediaBrowser.Model.IO;
  21. using MediaBrowser.Model.Services;
  22. using Microsoft.Extensions.Logging;
  23. using Microsoft.Net.Http.Headers;
  24. namespace MediaBrowser.Api.Images
  25. {
  26. /// <summary>
  27. /// Class GetItemImage.
  28. /// </summary>
  29. [Route("/Items/{Id}/Images", "GET", Summary = "Gets information about an item's images")]
  30. [Authenticated]
  31. public class GetItemImageInfos : IReturn<List<ImageInfo>>
  32. {
  33. /// <summary>
  34. /// Gets or sets the id.
  35. /// </summary>
  36. /// <value>The id.</value>
  37. [ApiMember(Name = "Id", Description = "Item Id", IsRequired = true, DataType = "string", ParameterType = "path", Verb = "GET")]
  38. public string Id { get; set; }
  39. }
  40. [Route("/Items/{Id}/Images/{Type}", "GET")]
  41. [Route("/Items/{Id}/Images/{Type}/{Index}", "GET")]
  42. [Route("/Items/{Id}/Images/{Type}", "HEAD")]
  43. [Route("/Items/{Id}/Images/{Type}/{Index}", "HEAD")]
  44. [Route("/Items/{Id}/Images/{Type}/{Index}/{Tag}/{Format}/{MaxWidth}/{MaxHeight}/{PercentPlayed}/{UnplayedCount}", "GET")]
  45. [Route("/Items/{Id}/Images/{Type}/{Index}/{Tag}/{Format}/{MaxWidth}/{MaxHeight}/{PercentPlayed}/{UnplayedCount}", "HEAD")]
  46. public class GetItemImage : ImageRequest
  47. {
  48. /// <summary>
  49. /// Gets or sets the id.
  50. /// </summary>
  51. /// <value>The id.</value>
  52. [ApiMember(Name = "Id", Description = "Item Id", IsRequired = true, DataType = "string", ParameterType = "path")]
  53. public Guid Id { get; set; }
  54. }
  55. /// <summary>
  56. /// Class UpdateItemImageIndex
  57. /// </summary>
  58. [Route("/Items/{Id}/Images/{Type}/{Index}/Index", "POST", Summary = "Updates the index for an item image")]
  59. [Authenticated(Roles = "admin")]
  60. public class UpdateItemImageIndex : IReturnVoid
  61. {
  62. /// <summary>
  63. /// Gets or sets the id.
  64. /// </summary>
  65. /// <value>The id.</value>
  66. [ApiMember(Name = "Id", Description = "Item Id", IsRequired = true, DataType = "string", ParameterType = "path", Verb = "POST")]
  67. public string Id { get; set; }
  68. /// <summary>
  69. /// Gets or sets the type of the image.
  70. /// </summary>
  71. /// <value>The type of the image.</value>
  72. [ApiMember(Name = "Type", Description = "Image Type", IsRequired = true, DataType = "string", ParameterType = "path", Verb = "POST")]
  73. public ImageType Type { get; set; }
  74. /// <summary>
  75. /// Gets or sets the index.
  76. /// </summary>
  77. /// <value>The index.</value>
  78. [ApiMember(Name = "Index", Description = "Image Index", IsRequired = false, DataType = "int", ParameterType = "query", Verb = "POST")]
  79. public int Index { get; set; }
  80. /// <summary>
  81. /// Gets or sets the new index.
  82. /// </summary>
  83. /// <value>The new index.</value>
  84. [ApiMember(Name = "NewIndex", Description = "The new image index", IsRequired = true, DataType = "string", ParameterType = "query", Verb = "POST")]
  85. public int NewIndex { get; set; }
  86. }
  87. /// <summary>
  88. /// Class GetPersonImage
  89. /// </summary>
  90. [Route("/Artists/{Name}/Images/{Type}", "GET")]
  91. [Route("/Artists/{Name}/Images/{Type}/{Index}", "GET")]
  92. [Route("/Genres/{Name}/Images/{Type}", "GET")]
  93. [Route("/Genres/{Name}/Images/{Type}/{Index}", "GET")]
  94. [Route("/MusicGenres/{Name}/Images/{Type}", "GET")]
  95. [Route("/MusicGenres/{Name}/Images/{Type}/{Index}", "GET")]
  96. [Route("/Persons/{Name}/Images/{Type}", "GET")]
  97. [Route("/Persons/{Name}/Images/{Type}/{Index}", "GET")]
  98. [Route("/Studios/{Name}/Images/{Type}", "GET")]
  99. [Route("/Studios/{Name}/Images/{Type}/{Index}", "GET")]
  100. ////[Route("/Years/{Year}/Images/{Type}", "GET")]
  101. ////[Route("/Years/{Year}/Images/{Type}/{Index}", "GET")]
  102. [Route("/Artists/{Name}/Images/{Type}", "HEAD")]
  103. [Route("/Artists/{Name}/Images/{Type}/{Index}", "HEAD")]
  104. [Route("/Genres/{Name}/Images/{Type}", "HEAD")]
  105. [Route("/Genres/{Name}/Images/{Type}/{Index}", "HEAD")]
  106. [Route("/MusicGenres/{Name}/Images/{Type}", "HEAD")]
  107. [Route("/MusicGenres/{Name}/Images/{Type}/{Index}", "HEAD")]
  108. [Route("/Persons/{Name}/Images/{Type}", "HEAD")]
  109. [Route("/Persons/{Name}/Images/{Type}/{Index}", "HEAD")]
  110. [Route("/Studios/{Name}/Images/{Type}", "HEAD")]
  111. [Route("/Studios/{Name}/Images/{Type}/{Index}", "HEAD")]
  112. ////[Route("/Years/{Year}/Images/{Type}", "HEAD")]
  113. ////[Route("/Years/{Year}/Images/{Type}/{Index}", "HEAD")]
  114. public class GetItemByNameImage : ImageRequest
  115. {
  116. /// <summary>
  117. /// Gets or sets the name.
  118. /// </summary>
  119. /// <value>The name.</value>
  120. [ApiMember(Name = "Name", Description = "Item name", IsRequired = true, DataType = "string", ParameterType = "path", Verb = "GET")]
  121. public string Name { get; set; }
  122. }
  123. /// <summary>
  124. /// Class GetUserImage
  125. /// </summary>
  126. [Route("/Users/{Id}/Images/{Type}", "GET")]
  127. [Route("/Users/{Id}/Images/{Type}/{Index}", "GET")]
  128. [Route("/Users/{Id}/Images/{Type}", "HEAD")]
  129. [Route("/Users/{Id}/Images/{Type}/{Index}", "HEAD")]
  130. public class GetUserImage : ImageRequest
  131. {
  132. /// <summary>
  133. /// Gets or sets the id.
  134. /// </summary>
  135. /// <value>The id.</value>
  136. [ApiMember(Name = "Id", Description = "User Id", IsRequired = true, DataType = "string", ParameterType = "path", Verb = "GET")]
  137. public Guid Id { get; set; }
  138. }
  139. /// <summary>
  140. /// Class DeleteItemImage
  141. /// </summary>
  142. [Route("/Items/{Id}/Images/{Type}", "DELETE")]
  143. [Route("/Items/{Id}/Images/{Type}/{Index}", "DELETE")]
  144. [Authenticated(Roles = "admin")]
  145. public class DeleteItemImage : DeleteImageRequest, IReturnVoid
  146. {
  147. /// <summary>
  148. /// Gets or sets the id.
  149. /// </summary>
  150. /// <value>The id.</value>
  151. [ApiMember(Name = "Id", Description = "Item Id", IsRequired = true, DataType = "string", ParameterType = "path", Verb = "DELETE")]
  152. public string Id { get; set; }
  153. }
  154. /// <summary>
  155. /// Class DeleteUserImage
  156. /// </summary>
  157. [Route("/Users/{Id}/Images/{Type}", "DELETE")]
  158. [Route("/Users/{Id}/Images/{Type}/{Index}", "DELETE")]
  159. [Authenticated]
  160. public class DeleteUserImage : DeleteImageRequest, IReturnVoid
  161. {
  162. /// <summary>
  163. /// Gets or sets the id.
  164. /// </summary>
  165. /// <value>The id.</value>
  166. [ApiMember(Name = "Id", Description = "User Id", IsRequired = true, DataType = "string", ParameterType = "path", Verb = "DELETE")]
  167. public Guid Id { get; set; }
  168. }
  169. /// <summary>
  170. /// Class PostUserImage
  171. /// </summary>
  172. [Route("/Users/{Id}/Images/{Type}", "POST")]
  173. [Route("/Users/{Id}/Images/{Type}/{Index}", "POST")]
  174. [Authenticated]
  175. public class PostUserImage : DeleteImageRequest, IRequiresRequestStream, IReturnVoid
  176. {
  177. /// <summary>
  178. /// Gets or sets the id.
  179. /// </summary>
  180. /// <value>The id.</value>
  181. [ApiMember(Name = "Id", Description = "User Id", IsRequired = true, DataType = "string", ParameterType = "path", Verb = "POST")]
  182. public string Id { get; set; }
  183. /// <summary>
  184. /// The raw Http Request Input Stream
  185. /// </summary>
  186. /// <value>The request stream.</value>
  187. public Stream RequestStream { get; set; }
  188. }
  189. /// <summary>
  190. /// Class PostItemImage
  191. /// </summary>
  192. [Route("/Items/{Id}/Images/{Type}", "POST")]
  193. [Route("/Items/{Id}/Images/{Type}/{Index}", "POST")]
  194. [Authenticated(Roles = "admin")]
  195. public class PostItemImage : DeleteImageRequest, IRequiresRequestStream, IReturnVoid
  196. {
  197. /// <summary>
  198. /// Gets or sets the id.
  199. /// </summary>
  200. /// <value>The id.</value>
  201. [ApiMember(Name = "Id", Description = "Item Id", IsRequired = true, DataType = "string", ParameterType = "path", Verb = "POST")]
  202. public string Id { get; set; }
  203. /// <summary>
  204. /// The raw Http Request Input Stream
  205. /// </summary>
  206. /// <value>The request stream.</value>
  207. public Stream RequestStream { get; set; }
  208. }
  209. /// <summary>
  210. /// Class ImageService
  211. /// </summary>
  212. public class ImageService : BaseApiService
  213. {
  214. private readonly IUserManager _userManager;
  215. private readonly ILibraryManager _libraryManager;
  216. private readonly IProviderManager _providerManager;
  217. private readonly IImageProcessor _imageProcessor;
  218. private readonly IFileSystem _fileSystem;
  219. private readonly IAuthorizationContext _authContext;
  220. /// <summary>
  221. /// Initializes a new instance of the <see cref="ImageService" /> class.
  222. /// </summary>
  223. public ImageService(
  224. ILogger<ImageService> logger,
  225. IServerConfigurationManager serverConfigurationManager,
  226. IHttpResultFactory httpResultFactory,
  227. IUserManager userManager,
  228. ILibraryManager libraryManager,
  229. IProviderManager providerManager,
  230. IImageProcessor imageProcessor,
  231. IFileSystem fileSystem,
  232. IAuthorizationContext authContext)
  233. : base(logger, serverConfigurationManager, httpResultFactory)
  234. {
  235. _userManager = userManager;
  236. _libraryManager = libraryManager;
  237. _providerManager = providerManager;
  238. _imageProcessor = imageProcessor;
  239. _fileSystem = fileSystem;
  240. _authContext = authContext;
  241. }
  242. /// <summary>
  243. /// Gets the specified request.
  244. /// </summary>
  245. /// <param name="request">The request.</param>
  246. /// <returns>System.Object.</returns>
  247. public object Get(GetItemImageInfos request)
  248. {
  249. var item = _libraryManager.GetItemById(request.Id);
  250. var result = GetItemImageInfos(item);
  251. return ToOptimizedResult(result);
  252. }
  253. /// <summary>
  254. /// Gets the item image infos.
  255. /// </summary>
  256. /// <param name="item">The item.</param>
  257. /// <returns>Task{List{ImageInfo}}.</returns>
  258. public List<ImageInfo> GetItemImageInfos(BaseItem item)
  259. {
  260. var list = new List<ImageInfo>();
  261. var itemImages = item.ImageInfos;
  262. if (itemImages.Length == 0)
  263. {
  264. // short-circuit
  265. return list;
  266. }
  267. _libraryManager.UpdateImages(item); // this makes sure dimensions and hashes are correct
  268. foreach (var image in itemImages)
  269. {
  270. if (!item.AllowsMultipleImages(image.Type))
  271. {
  272. var info = GetImageInfo(item, image, null);
  273. if (info != null)
  274. {
  275. list.Add(info);
  276. }
  277. }
  278. }
  279. foreach (var imageType in itemImages.Select(i => i.Type).Distinct().Where(item.AllowsMultipleImages))
  280. {
  281. var index = 0;
  282. // Prevent implicitly captured closure
  283. var currentImageType = imageType;
  284. foreach (var image in itemImages.Where(i => i.Type == currentImageType))
  285. {
  286. var info = GetImageInfo(item, image, index);
  287. if (info != null)
  288. {
  289. list.Add(info);
  290. }
  291. index++;
  292. }
  293. }
  294. return list;
  295. }
  296. private ImageInfo GetImageInfo(BaseItem item, ItemImageInfo info, int? imageIndex)
  297. {
  298. int? width = null;
  299. int? height = null;
  300. string blurhash = null;
  301. long length = 0;
  302. try
  303. {
  304. if (info.IsLocalFile)
  305. {
  306. var fileInfo = _fileSystem.GetFileInfo(info.Path);
  307. length = fileInfo.Length;
  308. blurhash = info.BlurHash;
  309. width = info.Width;
  310. height = info.Height;
  311. if (width <= 0 || height <= 0)
  312. {
  313. width = null;
  314. height = null;
  315. }
  316. }
  317. }
  318. catch (Exception ex)
  319. {
  320. Logger.LogError(ex, "Error getting image information for {Item}", item.Name);
  321. }
  322. try
  323. {
  324. return new ImageInfo
  325. {
  326. Path = info.Path,
  327. ImageIndex = imageIndex,
  328. ImageType = info.Type,
  329. ImageTag = _imageProcessor.GetImageCacheTag(item, info),
  330. Size = length,
  331. BlurHash = blurhash,
  332. Width = width,
  333. Height = height
  334. };
  335. }
  336. catch (Exception ex)
  337. {
  338. Logger.LogError(ex, "Error getting image information for {Path}", info.Path);
  339. return null;
  340. }
  341. }
  342. /// <summary>
  343. /// Gets the specified request.
  344. /// </summary>
  345. /// <param name="request">The request.</param>
  346. /// <returns>System.Object.</returns>
  347. public object Get(GetItemImage request)
  348. {
  349. return GetImage(request, request.Id, null, false);
  350. }
  351. /// <summary>
  352. /// Gets the specified request.
  353. /// </summary>
  354. /// <param name="request">The request.</param>
  355. /// <returns>System.Object.</returns>
  356. public object Head(GetItemImage request)
  357. {
  358. return GetImage(request, request.Id, null, true);
  359. }
  360. /// <summary>
  361. /// Gets the specified request.
  362. /// </summary>
  363. /// <param name="request">The request.</param>
  364. /// <returns>System.Object.</returns>
  365. public object Get(GetUserImage request)
  366. {
  367. var item = _userManager.GetUserById(request.Id);
  368. return GetImage(request, Guid.Empty, item, false);
  369. }
  370. public object Head(GetUserImage request)
  371. {
  372. var item = _userManager.GetUserById(request.Id);
  373. return GetImage(request, Guid.Empty, item, true);
  374. }
  375. public object Get(GetItemByNameImage request)
  376. {
  377. var type = GetPathValue(0).ToString();
  378. var item = GetItemByName(request.Name, type, _libraryManager, new DtoOptions(false));
  379. return GetImage(request, item.Id, item, false);
  380. }
  381. public object Head(GetItemByNameImage request)
  382. {
  383. var type = GetPathValue(0).ToString();
  384. var item = GetItemByName(request.Name, type, _libraryManager, new DtoOptions(false));
  385. return GetImage(request, item.Id, item, true);
  386. }
  387. /// <summary>
  388. /// Posts the specified request.
  389. /// </summary>
  390. /// <param name="request">The request.</param>
  391. public Task Post(PostUserImage request)
  392. {
  393. var id = Guid.Parse(GetPathValue(1));
  394. AssertCanUpdateUser(_authContext, _userManager, id, true);
  395. request.Type = Enum.Parse<ImageType>(GetPathValue(3).ToString(), true);
  396. var item = _userManager.GetUserById(id);
  397. return PostImage(item, request.RequestStream, request.Type, Request.ContentType);
  398. }
  399. /// <summary>
  400. /// Posts the specified request.
  401. /// </summary>
  402. /// <param name="request">The request.</param>
  403. public Task Post(PostItemImage request)
  404. {
  405. var id = Guid.Parse(GetPathValue(1));
  406. request.Type = Enum.Parse<ImageType>(GetPathValue(3).ToString(), true);
  407. var item = _libraryManager.GetItemById(id);
  408. return PostImage(item, request.RequestStream, request.Type, Request.ContentType);
  409. }
  410. /// <summary>
  411. /// Deletes the specified request.
  412. /// </summary>
  413. /// <param name="request">The request.</param>
  414. public void Delete(DeleteUserImage request)
  415. {
  416. var userId = request.Id;
  417. AssertCanUpdateUser(_authContext, _userManager, userId, true);
  418. var item = _userManager.GetUserById(userId);
  419. item.DeleteImage(request.Type, request.Index ?? 0);
  420. }
  421. /// <summary>
  422. /// Deletes the specified request.
  423. /// </summary>
  424. /// <param name="request">The request.</param>
  425. public void Delete(DeleteItemImage request)
  426. {
  427. var item = _libraryManager.GetItemById(request.Id);
  428. item.DeleteImage(request.Type, request.Index ?? 0);
  429. }
  430. /// <summary>
  431. /// Posts the specified request.
  432. /// </summary>
  433. /// <param name="request">The request.</param>
  434. public void Post(UpdateItemImageIndex request)
  435. {
  436. var item = _libraryManager.GetItemById(request.Id);
  437. UpdateItemIndex(item, request.Type, request.Index, request.NewIndex);
  438. }
  439. /// <summary>
  440. /// Updates the index of the item.
  441. /// </summary>
  442. /// <param name="item">The item.</param>
  443. /// <param name="type">The type.</param>
  444. /// <param name="currentIndex">Index of the current.</param>
  445. /// <param name="newIndex">The new index.</param>
  446. /// <returns>Task.</returns>
  447. private void UpdateItemIndex(BaseItem item, ImageType type, int currentIndex, int newIndex)
  448. {
  449. item.SwapImages(type, currentIndex, newIndex);
  450. }
  451. /// <summary>
  452. /// Gets the image.
  453. /// </summary>
  454. /// <param name="request">The request.</param>
  455. /// <param name="item">The item.</param>
  456. /// <param name="isHeadRequest">if set to <c>true</c> [is head request].</param>
  457. /// <returns>System.Object.</returns>
  458. /// <exception cref="ResourceNotFoundException"></exception>
  459. public Task<object> GetImage(ImageRequest request, Guid itemId, BaseItem item, bool isHeadRequest)
  460. {
  461. if (request.PercentPlayed.HasValue)
  462. {
  463. if (request.PercentPlayed.Value <= 0)
  464. {
  465. request.PercentPlayed = null;
  466. }
  467. else if (request.PercentPlayed.Value >= 100)
  468. {
  469. request.PercentPlayed = null;
  470. request.AddPlayedIndicator = true;
  471. }
  472. }
  473. if (request.PercentPlayed.HasValue)
  474. {
  475. request.UnplayedCount = null;
  476. }
  477. if (request.UnplayedCount.HasValue
  478. && request.UnplayedCount.Value <= 0)
  479. {
  480. request.UnplayedCount = null;
  481. }
  482. if (item == null)
  483. {
  484. item = _libraryManager.GetItemById(itemId);
  485. if (item == null)
  486. {
  487. throw new ResourceNotFoundException(string.Format("Item {0} not found.", itemId.ToString("N", CultureInfo.InvariantCulture)));
  488. }
  489. }
  490. var imageInfo = GetImageInfo(request, item);
  491. if (imageInfo == null)
  492. {
  493. var displayText = item == null ? itemId.ToString() : item.Name;
  494. throw new ResourceNotFoundException(string.Format("{0} does not have an image of type {1}", displayText, request.Type));
  495. }
  496. bool cropwhitespace;
  497. if (request.CropWhitespace.HasValue)
  498. {
  499. cropwhitespace = request.CropWhitespace.Value;
  500. }
  501. else
  502. {
  503. cropwhitespace = request.Type == ImageType.Logo || request.Type == ImageType.Art;
  504. }
  505. var outputFormats = GetOutputFormats(request);
  506. TimeSpan? cacheDuration = null;
  507. if (!string.IsNullOrEmpty(request.Tag))
  508. {
  509. cacheDuration = TimeSpan.FromDays(365);
  510. }
  511. var responseHeaders = new Dictionary<string, string>
  512. {
  513. {"transferMode.dlna.org", "Interactive"},
  514. {"realTimeInfo.dlna.org", "DLNA.ORG_TLAG=*"}
  515. };
  516. return GetImageResult(
  517. item,
  518. itemId,
  519. request,
  520. imageInfo,
  521. cropwhitespace,
  522. outputFormats,
  523. cacheDuration,
  524. responseHeaders,
  525. isHeadRequest);
  526. }
  527. private async Task<object> GetImageResult(
  528. BaseItem item,
  529. Guid itemId,
  530. ImageRequest request,
  531. ItemImageInfo image,
  532. bool cropwhitespace,
  533. IReadOnlyCollection<ImageFormat> supportedFormats,
  534. TimeSpan? cacheDuration,
  535. IDictionary<string, string> headers,
  536. bool isHeadRequest)
  537. {
  538. if (!image.IsLocalFile)
  539. {
  540. item ??= _libraryManager.GetItemById(itemId);
  541. image = await _libraryManager.ConvertImageToLocal(item, image, request.Index ?? 0).ConfigureAwait(false);
  542. }
  543. var options = new ImageProcessingOptions
  544. {
  545. CropWhiteSpace = cropwhitespace,
  546. Height = request.Height,
  547. ImageIndex = request.Index ?? 0,
  548. Image = image,
  549. Item = item,
  550. ItemId = itemId,
  551. MaxHeight = request.MaxHeight,
  552. MaxWidth = request.MaxWidth,
  553. Quality = request.Quality ?? 100,
  554. Width = request.Width,
  555. AddPlayedIndicator = request.AddPlayedIndicator,
  556. PercentPlayed = request.PercentPlayed ?? 0,
  557. UnplayedCount = request.UnplayedCount,
  558. Blur = request.Blur,
  559. BackgroundColor = request.BackgroundColor,
  560. ForegroundLayer = request.ForegroundLayer,
  561. SupportedOutputFormats = supportedFormats
  562. };
  563. var imageResult = await _imageProcessor.ProcessImage(options).ConfigureAwait(false);
  564. headers[HeaderNames.Vary] = HeaderNames.Accept;
  565. return await ResultFactory.GetStaticFileResult(Request, new StaticFileResultOptions
  566. {
  567. CacheDuration = cacheDuration,
  568. ResponseHeaders = headers,
  569. ContentType = imageResult.Item2,
  570. DateLastModified = imageResult.Item3,
  571. IsHeadRequest = isHeadRequest,
  572. Path = imageResult.Item1,
  573. FileShare = FileShare.Read
  574. }).ConfigureAwait(false);
  575. }
  576. private ImageFormat[] GetOutputFormats(ImageRequest request)
  577. {
  578. if (!string.IsNullOrWhiteSpace(request.Format)
  579. && Enum.TryParse(request.Format, true, out ImageFormat format))
  580. {
  581. return new[] { format };
  582. }
  583. return GetClientSupportedFormats();
  584. }
  585. private ImageFormat[] GetClientSupportedFormats()
  586. {
  587. var supportedFormats = Request.AcceptTypes ?? Array.Empty<string>();
  588. if (supportedFormats.Length > 0)
  589. {
  590. for (int i = 0; i < supportedFormats.Length; i++)
  591. {
  592. int index = supportedFormats[i].IndexOf(';');
  593. if (index != -1)
  594. {
  595. supportedFormats[i] = supportedFormats[i].Substring(0, index);
  596. }
  597. }
  598. }
  599. var acceptParam = Request.QueryString["accept"];
  600. var supportsWebP = SupportsFormat(supportedFormats, acceptParam, "webp", false);
  601. if (!supportsWebP)
  602. {
  603. var userAgent = Request.UserAgent ?? string.Empty;
  604. if (userAgent.IndexOf("crosswalk", StringComparison.OrdinalIgnoreCase) != -1 &&
  605. userAgent.IndexOf("android", StringComparison.OrdinalIgnoreCase) != -1)
  606. {
  607. supportsWebP = true;
  608. }
  609. }
  610. var formats = new List<ImageFormat>(4);
  611. if (supportsWebP)
  612. {
  613. formats.Add(ImageFormat.Webp);
  614. }
  615. formats.Add(ImageFormat.Jpg);
  616. formats.Add(ImageFormat.Png);
  617. if (SupportsFormat(supportedFormats, acceptParam, "gif", true))
  618. {
  619. formats.Add(ImageFormat.Gif);
  620. }
  621. return formats.ToArray();
  622. }
  623. private bool SupportsFormat(IEnumerable<string> requestAcceptTypes, string acceptParam, string format, bool acceptAll)
  624. {
  625. var mimeType = "image/" + format;
  626. if (requestAcceptTypes.Contains(mimeType))
  627. {
  628. return true;
  629. }
  630. if (acceptAll && requestAcceptTypes.Contains("*/*"))
  631. {
  632. return true;
  633. }
  634. return string.Equals(Request.QueryString["accept"], format, StringComparison.OrdinalIgnoreCase);
  635. }
  636. /// <summary>
  637. /// Gets the image path.
  638. /// </summary>
  639. /// <param name="request">The request.</param>
  640. /// <param name="item">The item.</param>
  641. /// <returns>System.String.</returns>
  642. private ItemImageInfo GetImageInfo(ImageRequest request, BaseItem item)
  643. {
  644. var index = request.Index ?? 0;
  645. return item.GetImageInfo(request.Type, index);
  646. }
  647. /// <summary>
  648. /// Posts the image.
  649. /// </summary>
  650. /// <param name="entity">The entity.</param>
  651. /// <param name="inputStream">The input stream.</param>
  652. /// <param name="imageType">Type of the image.</param>
  653. /// <param name="mimeType">Type of the MIME.</param>
  654. /// <returns>Task.</returns>
  655. public async Task PostImage(BaseItem entity, Stream inputStream, ImageType imageType, string mimeType)
  656. {
  657. using var reader = new StreamReader(inputStream);
  658. var text = await reader.ReadToEndAsync().ConfigureAwait(false);
  659. var bytes = Convert.FromBase64String(text);
  660. var memoryStream = new MemoryStream(bytes)
  661. {
  662. Position = 0
  663. };
  664. // Handle image/png; charset=utf-8
  665. mimeType = mimeType.Split(';').FirstOrDefault();
  666. await _providerManager.SaveImage(entity, memoryStream, mimeType, imageType, null, CancellationToken.None).ConfigureAwait(false);
  667. entity.UpdateToRepository(ItemUpdateType.ImageUpdate, CancellationToken.None);
  668. }
  669. }
  670. }