Implemented the "handle(_: context: next: )" function for the DocCMiddleware type in the library target.

This commit is contained in:
2025-09-26 00:27:56 +02:00
parent edeaf219a0
commit 8aa2cf0fb2
4 changed files with 605 additions and 9 deletions
@@ -11,8 +11,12 @@
// ===----------------------------------------------------------------------===
import protocol Hummingbird.FileProvider
import protocol Hummingbird.RequestContext
import protocol Hummingbird.RouterMiddleware
import struct Hummingbird.LocalFileSystem
import struct Hummingbird.Request
import struct Hummingbird.Response
import struct Logging.Logger
/// A middleware that proxies requests to `DocC` documentation containers within a hosting app.
@@ -32,6 +36,15 @@ public struct DocCMiddleware<FileSystemProvider: FileProvider> {
/// A use case that checks whether a received URI could be processed or not.
private let checkURI: CheckURIUseCase = .init()
/// A use case that extracts data from a given URI path, essential for routing the documentation contents.
private let prepareURIPath: PrepareURIPathUseCase
/// A use case that produces a redirect response based on a given URI path.
private let redirectURI: RedirectURIUseCase
/// A use case that serves a resource, defined by its URI path, from a physical location.
private let serveURI: ServeURIUseCase<FileSystemProvider>
// MARK: Initializers
/// Initializes this middleware.
@@ -93,11 +106,74 @@ extension DocCMiddleware: RouterMiddleware {
context: any Context,
next: (Input, any Context) async throws -> Output
) async throws -> Output {
guard let uri = checkURI(input.uri) else {
guard
let uriPath = checkURI(input.uri),
let uriData = prepareURIPath(uriPath)
else {
return try await next(input, context)
}
if uriData.resourcePath == .Path.forwardSlash {
// rule #1: Redirects URI root to `/`.
// rule #2: Redirects URI resources with `/` to `/documentation`.
return redirectURI(
uriPath.hasSuffix(.Path.forwardSlash)
? String(format: .Format.Path.documentation, uriPath)
: String(format: .Format.Path.forwardSlash, uriPath),
with: (input, context)
)
}
for assetFile in AssetFile.allCases {
if uriData.resourcePath.contains(assetFile.path) {
return try await serveURI(
assetFile == .documentation
// Rule #6: Redirects URI resources with `/data/documentation.json` to the file in the `data/documentation/`
// folder that has the name of the module and ends with the `.json` extension in the *DocC* archive container.
? String(format: .Format.Path.documentationJSON, uriData.archiveName)
// Rule #7: Redirect URI resources for static files (`favicon.ico`, `favicon.svg`, and `theme-settings.json`)
// to their respective files in the *DocC* archive container.
: uriData.resourcePath,
at: uriData.archivePath,
with: (input, context)
)
}
}
for assetFolder in AssetFolder.allCases {
if uriData.resourcePath.contains(assetFolder.path) {
// Rule #8: Redirect URI resources for asset files (`/css/`, `/data/`, `/downloads/`, `/images/`, `/img/`,
// `/index/`, `/js/`, or `/videos/`) to their respective files in the *DocC* archive container.
return try await serveURI(
uriData.resourcePath,
at: uriData.archivePath,
with: (input, context)
)
}
}
for documentationFolder in DocumentationFolder.allCases {
if uriData.resourcePath.contains(documentationFolder.path) {
if uriData.resourcePath.hasSuffix(.Path.forwardSlash) {
// Rule #5: Redirect URI resources for `/documentation/` and `/tutorials/` folders to their respective `index.html` file.
return try await serveURI(
String(format: .Format.Path.index, documentationFolder.path, uriData.archiveName),
at: uriData.archivePath,
with: (input, context)
)
} else {
// rule #3: Redirects URI resources with `/documentation` to `/documentation/`.
// rule #4: Redirects URI resources with `/tutorials` to `/tutorials/`.
return redirectURI(
String(format: .Format.Path.forwardSlash, uriPath),
with: (input, context)
)
}
}
}
return try await next(input, context)
}
}