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