ImageService.cs 27 KB

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