/// <summary>
/// Initializes a new instance of the <see cref="ImageSharpMiddleware"/> class.
/// </summary>
/// <param name="next">The next middleware in the pipeline</param>
/// <param name="options">The middleware configuration options</param>
/// <param name="loggerFactory">An <see cref="ILoggerFactory"/> instance used to create loggers</param>
/// <param name="uriParser">An <see cref="IUriParser"/> instance used to parse URI's for commands</param>
/// <param name="resolvers">A collection of <see cref="IImageResolver"/> instances used to resolve images</param>
/// <param name="processors">A collection of <see cref="IImageWebProcessor"/> instances used to process images</param>
/// <param name="cache">An <see cref="IImageCache"/> instance used for caching images</param>
public ImageSharpMiddleware(
RequestDelegate next,
IOptions <ImageSharpMiddlewareOptions> options,
ILoggerFactory loggerFactory,
IUriParser uriParser,
IEnumerable <IImageResolver> resolvers,
IEnumerable <IImageWebProcessor> processors,
IImageCache cache)
{
Guard.NotNull(next, nameof(next));
Guard.NotNull(options, nameof(options));
Guard.NotNull(loggerFactory, nameof(loggerFactory));
Guard.NotNull(uriParser, nameof(uriParser));
Guard.NotNull(resolvers, nameof(resolvers));
Guard.NotNull(processors, nameof(processors));
Guard.NotNull(cache, nameof(cache));
this.next = next;
this.options = options.Value;
this.uriParser = uriParser;
this.resolvers = resolvers;
this.processors = processors;
this.cache = cache;
var commands = new List <string>();
foreach (IImageWebProcessor processor in this.processors)
{
commands.AddRange(processor.Commands);
}
this.knownCommands = commands;
this.logger = loggerFactory.CreateLogger <ImageSharpMiddleware>();
}
/// <summary>
/// Initializes a new instance of the <see cref="ImageSharpMiddleware"/> class.
/// </summary>
/// <param name="next">The next middleware in the pipeline.</param>
/// <param name="options">The middleware configuration options.</param>
/// <param name="loggerFactory">An <see cref="ILoggerFactory"/> instance used to create loggers.</param>
/// <param name="requestParser">An <see cref="IRequestParser"/> instance used to parse image requests for commands.</param>
/// <param name="resolvers">A collection of <see cref="IImageProvider"/> instances used to resolve images.</param>
/// <param name="processors">A collection of <see cref="IImageWebProcessor"/> instances used to process images.</param>
/// <param name="cache">An <see cref="IImageCache"/> instance used for caching images.</param>
/// <param name="cacheHash">An <see cref="ICacheHash"/>instance used for calculating cached file names.</param>
/// <param name="commandParser">The command parser</param>
/// <param name="formatUtilities">Contains various format helper methods based on the current configuration.</param>
public ImageSharpMiddleware(
RequestDelegate next,
IOptions <ImageSharpMiddlewareOptions> options,
ILoggerFactory loggerFactory,
IRequestParser requestParser,
IEnumerable <IImageProvider> resolvers,
IEnumerable <IImageWebProcessor> processors,
IImageCache cache,
ICacheHash cacheHash,
CommandParser commandParser,
FormatUtilities formatUtilities)
{
Guard.NotNull(next, nameof(next));
Guard.NotNull(options, nameof(options));
Guard.NotNull(loggerFactory, nameof(loggerFactory));
Guard.NotNull(requestParser, nameof(requestParser));
Guard.NotNull(resolvers, nameof(resolvers));
Guard.NotNull(processors, nameof(processors));
Guard.NotNull(cache, nameof(cache));
Guard.NotNull(cacheHash, nameof(cacheHash));
Guard.NotNull(commandParser, nameof(commandParser));
Guard.NotNull(formatUtilities, nameof(formatUtilities));
this.next = next;
this.options = options.Value;
this.requestParser = requestParser;
this.providers = resolvers as IImageProvider[] ?? resolvers.ToArray();
this.processors = processors as IImageWebProcessor[] ?? processors.ToArray();
this.cache = cache;
this.cacheHash = cacheHash;
this.commandParser = commandParser;
this.parserCulture = this.options.UseInvariantParsingCulture
? CultureInfo.InvariantCulture
: CultureInfo.CurrentCulture;
var commands = new HashSet <string>();
foreach (IImageWebProcessor processor in this.processors)
{
foreach (string command in processor.Commands)
{
commands.Add(command);
}
}
this.knownCommands = commands;
this.logger = loggerFactory.CreateLogger <ImageSharpMiddleware>();
this.formatUtilities = formatUtilities;
}
/// <summary>
/// Initializes a new instance of the <see cref="ImageSharpMiddleware"/> class.
/// </summary>
/// <param name="next">The next middleware in the pipeline.</param>
/// <param name="options">The middleware configuration options.</param>
/// <param name="loggerFactory">An <see cref="ILoggerFactory"/> instance used to create loggers.</param>
/// <param name="memoryAllocator">An <see cref="MemoryAllocator"/> instance used to allocate arrays transporting encoded image data.</param>
/// <param name="requestParser">An <see cref="IRequestParser"/> instance used to parse image requests for commands.</param>
/// <param name="resolvers">A collection of <see cref="IImageProvider"/> instances used to resolve images.</param>
/// <param name="processors">A collection of <see cref="IImageWebProcessor"/> instances used to process images.</param>
/// <param name="cache">An <see cref="IImageCache"/> instance used for caching images.</param>
/// <param name="cacheHash">An <see cref="ICacheHash"/>instance used for calculating cached file names.</param>
/// <param name="formatUtilities">Contains various format helper methods based on the current configuration.</param>
public ImageSharpMiddleware(
RequestDelegate next,
IOptions <ImageSharpMiddlewareOptions> options,
ILoggerFactory loggerFactory,
MemoryAllocator memoryAllocator,
IRequestParser requestParser,
IEnumerable <IImageProvider> resolvers,
IEnumerable <IImageWebProcessor> processors,
IImageCache cache,
ICacheHash cacheHash,
FormatUtilities formatUtilities)
{
Guard.NotNull(next, nameof(next));
Guard.NotNull(options, nameof(options));
Guard.NotNull(loggerFactory, nameof(loggerFactory));
Guard.NotNull(memoryAllocator, nameof(memoryAllocator));
Guard.NotNull(requestParser, nameof(requestParser));
Guard.NotNull(resolvers, nameof(resolvers));
Guard.NotNull(processors, nameof(processors));
Guard.NotNull(cache, nameof(cache));
Guard.NotNull(cacheHash, nameof(cacheHash));
Guard.NotNull(AsyncLock, nameof(AsyncLock));
this.next = next;
this.options = options.Value;
this.memoryAllocator = memoryAllocator;
this.requestParser = requestParser;
this.providers = resolvers as IImageProvider[] ?? resolvers.ToArray();
this.processors = processors as IImageWebProcessor[] ?? processors.ToArray();
this.cache = cache;
this.cacheHash = cacheHash;
var commands = new HashSet <string>();
foreach (IImageWebProcessor processor in this.processors)
{
foreach (string command in processor.Commands)
{
commands.Add(command);
}
}
this.knownCommands = commands;
this.logger = loggerFactory.CreateLogger <ImageSharpMiddleware>();
this.formatUtilities = formatUtilities;
}
/// <summary>
/// Initializes a new instance of the <see cref="ImageSharpMiddleware"/> class.
/// </summary>
/// <param name="next">The next middleware in the pipeline.</param>
/// <param name="options">The middleware configuration options.</param>
/// <param name="loggerFactory">An <see cref="ILoggerFactory"/> instance used to create loggers.</param>
/// <param name="memoryAllocator">An <see cref="MemoryAllocator"/> instance used to allocate arrays transporting encoded image data.</param>
/// <param name="requestParser">An <see cref="IRequestParser"/> instance used to parse image requests for commands.</param>
/// <param name="resolvers">A collection of <see cref="IImageProvider"/> instances used to resolve images.</param>
/// <param name="processors">A collection of <see cref="IImageWebProcessor"/> instances used to process images.</param>
/// <param name="cache">An <see cref="IImageCache"/> instance used for caching images.</param>
/// <param name="cacheHash">An <see cref="ICacheHash"/>instance used for calculating cached file names.</param>
/// <param name="asyncKeyLock">An <see cref="IAsyncKeyLock"/> instance used for providing locking during processing.</param>
public ImageSharpMiddleware(
RequestDelegate next,
IOptions <ImageSharpMiddlewareOptions> options,
ILoggerFactory loggerFactory,
MemoryAllocator memoryAllocator,
IRequestParser requestParser,
IEnumerable <IImageProvider> resolvers,
IEnumerable <IImageWebProcessor> processors,
IImageCache cache,
ICacheHash cacheHash,
IAsyncKeyLock asyncKeyLock)
{
Guard.NotNull(next, nameof(next));
Guard.NotNull(options, nameof(options));
Guard.NotNull(loggerFactory, nameof(loggerFactory));
Guard.NotNull(memoryAllocator, nameof(memoryAllocator));
Guard.NotNull(requestParser, nameof(requestParser));
Guard.NotNull(resolvers, nameof(resolvers));
Guard.NotNull(processors, nameof(processors));
Guard.NotNull(cache, nameof(cache));
Guard.NotNull(cache, nameof(cacheHash));
Guard.NotNull(asyncKeyLock, nameof(asyncKeyLock));
this.next = next;
this.options = options.Value;
this.memoryAllocator = memoryAllocator;
this.requestParser = requestParser;
this.resolvers = resolvers;
this.processors = processors;
this.cache = cache;
this.cacheHash = cacheHash;
this.asyncKeyLock = asyncKeyLock;
var commands = new List <string>();
foreach (IImageWebProcessor processor in this.processors)
{
commands.AddRange(processor.Commands);
}
this.knownCommands = commands;
this.logger = loggerFactory.CreateLogger <ImageSharpMiddleware>();
}
/// <summary>
/// Initializes a new instance of the <see cref="ImageContext"/> struct.
/// </summary>
/// <param name="context">The current HTTP request context</param>
/// <param name="options">The middleware options</param>
public ImageContext(HttpContext context, ImageSharpMiddlewareOptions options)
{
this.context = context;
this.request = context.Request;
this.response = context.Response;
this.requestHeaders = context.Request.GetTypedHeaders();
this.responseHeaders = context.Response.GetTypedHeaders();
this.options = options;
this.fileLastModified = DateTimeOffset.MinValue;
this.fileLength = 0;
this.fileEtag = null;
this.ifMatchState = PreconditionState.Unspecified;
this.ifNoneMatchState = PreconditionState.Unspecified;
this.ifModifiedSinceState = PreconditionState.Unspecified;
this.ifUnmodifiedSinceState = PreconditionState.Unspecified;
}
