WIP on feeds / podcasts
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@ -524,8 +524,7 @@ module Post =
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}
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/// Find posts to be displayed on a category list page
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let findPageOfCategorizedPosts (webLogId : WebLogId) (catIds : CategoryId list) (pageNbr : int64) postsPerPage =
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let pg = int pageNbr
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let findPageOfCategorizedPosts (webLogId : WebLogId) (catIds : CategoryId list) pageNbr postsPerPage =
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rethink<Post list> {
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withTable Table.Post
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getAll (objList catIds) "categoryIds"
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@ -534,7 +533,7 @@ module Post =
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without [ "priorPermalinks"; "revisions" ]
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distinct
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orderByDescending "publishedOn"
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skip ((pg - 1) * postsPerPage)
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skip ((pageNbr - 1) * postsPerPage)
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limit (postsPerPage + 1)
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result; withRetryDefault
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}
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@ -255,6 +255,9 @@ type PodcastOptions =
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/// The e-mail address of the user who registered the podcast at iTunes
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email : string
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/// The link to the image for the podcast
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imageUrl : Permalink
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/// The category from iTunes under which this podcast is categorized
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iTunesCategory : string
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@ -263,6 +266,9 @@ type PodcastOptions =
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/// The explictness rating (iTunes field)
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explicit : ExplicitRating
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/// The default media type for files in this podcast
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defaultMediaType : string option
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}
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257
src/MyWebLog/Handlers/Feed.fs
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257
src/MyWebLog/Handlers/Feed.fs
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@ -0,0 +1,257 @@
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/// Functions to support generating RSS feeds
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module MyWebLog.Handlers.Feed
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open System
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open System.IO
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open System.ServiceModel.Syndication
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open System.Text.RegularExpressions
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open System.Xml
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open Giraffe
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open Microsoft.AspNetCore.Http
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open MyWebLog
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open MyWebLog.ViewModels
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/// The type of feed to generate
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type FeedType =
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| StandardFeed
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| CategoryFeed of CategoryId
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| TagFeed of string
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| Custom of CustomFeed
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/// Derive the type of RSS feed requested
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let deriveFeedType (ctx : HttpContext) feedPath : (FeedType * int) option =
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let webLog = ctx.WebLog
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let name = $"/{webLog.rss.feedName}"
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let postCount = defaultArg webLog.rss.itemsInFeed webLog.postsPerPage
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// Standard feed
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match webLog.rss.feedEnabled && feedPath = name with
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| true -> Some (StandardFeed, postCount)
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| false ->
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// Category feed
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match CategoryCache.get ctx |> Array.tryFind (fun cat -> cat.slug = feedPath.Replace (name, "")) with
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| Some cat -> Some (CategoryFeed (CategoryId cat.id), postCount)
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| None ->
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// Tag feed
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match feedPath.StartsWith "/tag/" with
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| true -> Some (TagFeed (feedPath.Replace("/tag/", "").Replace(name, "")), postCount)
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| false ->
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// Custom feed
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match webLog.rss.customFeeds
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|> List.tryFind (fun it -> (Permalink.toString it.path).EndsWith feedPath) with
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| Some feed ->
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Some (Custom feed,
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feed.podcast |> Option.map (fun p -> p.itemsInFeed) |> Option.defaultValue postCount)
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| None ->
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// No feed
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None
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/// Determine the function to retrieve posts for the given feed
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let private getFeedPosts (webLog : WebLog) feedType =
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match feedType with
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| StandardFeed -> Data.Post.findPageOfPublishedPosts webLog.id 1
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| CategoryFeed catId -> Data.Post.findPageOfCategorizedPosts webLog.id [ catId ] 1
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| TagFeed tag -> Data.Post.findPageOfTaggedPosts webLog.id tag 1
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| Custom feed ->
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match feed.source with
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| Category catId -> Data.Post.findPageOfCategorizedPosts webLog.id [ catId ] 1
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| Tag tag -> Data.Post.findPageOfTaggedPosts webLog.id tag 1
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/// Strip HTML from a string
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let private stripHtml text = Regex.Replace (text, "<(.|\n)*?>", "")
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/// Create a feed item from the given post
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let private toFeedItem webLog (authors : MetaItem list) (cats : DisplayCategory[]) (tagMaps : TagMap list)
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(post : Post) =
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let plainText =
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match stripHtml post.text with
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| txt when txt.Length < 255 -> txt
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| txt -> $"{txt.Substring (0, 252)}..."
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let item = SyndicationItem (
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Id = WebLog.absoluteUrl webLog post.permalink,
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Title = TextSyndicationContent.CreateHtmlContent post.title,
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PublishDate = DateTimeOffset post.publishedOn.Value,
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LastUpdatedTime = DateTimeOffset post.updatedOn,
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Content = TextSyndicationContent.CreatePlaintextContent plainText)
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item.AddPermalink (Uri item.Id)
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let encoded =
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post.text.Replace("src=\"/", $"src=\"{webLog.urlBase}/").Replace ("href=\"/", $"href=\"{webLog.urlBase}/")
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item.ElementExtensions.Add ("encoded", "http://purl.org/rss/1.0/modules/content/", encoded)
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item.Authors.Add (SyndicationPerson (
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Name = (authors |> List.find (fun a -> a.name = WebLogUserId.toString post.authorId)).value))
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[ post.categoryIds
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|> List.map (fun catId ->
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let cat = cats |> Array.find (fun c -> c.id = CategoryId.toString catId)
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SyndicationCategory (cat.name, WebLog.absoluteUrl webLog (Permalink $"category/{cat.slug}/"), cat.name))
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post.tags
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|> List.map (fun tag ->
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let urlTag =
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match tagMaps |> List.tryFind (fun tm -> tm.tag = tag) with
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| Some tm -> tm.urlValue
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| None -> tag.Replace (" ", "+")
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SyndicationCategory (tag, WebLog.absoluteUrl webLog (Permalink $"tag/{urlTag}/"), $"{tag} (tag)"))
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]
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|> List.concat
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|> List.iter item.Categories.Add
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item
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/// Add episode information to a podcast feed item
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let private addEpisode webLog (feed : CustomFeed) (post : Post) (item : SyndicationItem) =
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let podcast = Option.get feed.podcast
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let meta name = post.metadata |> List.tryFind (fun it -> it.name = name)
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let value (item : MetaItem) = item.value
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let epMediaUrl =
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match (meta >> Option.get >> value) "media" with
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| link when link.StartsWith "http" -> link
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| link -> WebLog.absoluteUrl webLog (Permalink link)
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let epMediaType =
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match meta "mediaType", podcast.defaultMediaType with
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| Some epType, _ -> Some epType.value
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| None, Some defType -> Some defType
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| _ -> None
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let epImageUrl =
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match defaultArg ((meta >> Option.map value) "image") (Permalink.toString podcast.imageUrl) with
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| link when link.StartsWith "http" -> link
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| link -> WebLog.absoluteUrl webLog (Permalink link)
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let epExplicit =
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try
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(meta >> Option.map (value >> ExplicitRating.parse)) "explicit"
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|> Option.defaultValue podcast.explicit
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|> ExplicitRating.toString
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with :? ArgumentException -> ExplicitRating.toString podcast.explicit
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let encXml = XmlDocument ()
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let encElt = encXml.CreateElement "enclosure"
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encElt.SetAttribute ("url", epMediaUrl)
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meta "length" |> Option.iter (fun it -> encElt.SetAttribute ("length", it.value))
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epMediaType |> Option.iter (fun typ -> encElt.SetAttribute ("type", typ))
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item.ElementExtensions.Add ("enclosure", "", encXml)
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item.ElementExtensions.Add ("creator", "dc", podcast.displayedAuthor)
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item.ElementExtensions.Add ("author", "itunes", podcast.displayedAuthor)
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meta "subtitle" |> Option.iter (fun it -> item.ElementExtensions.Add ("subtitle", "itunes", it.value))
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item.ElementExtensions.Add ("summary", "itunes", stripHtml post.text)
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item.ElementExtensions.Add ("image", "itunes", epImageUrl)
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item.ElementExtensions.Add ("explicit", "itunes", epExplicit)
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meta "duration" |> Option.iter (fun it -> item.ElementExtensions.Add ("duration", "itunes", it.value))
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if post.metadata |> List.exists (fun it -> it.name = "chapter") then
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try
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let chapXml = XmlDocument ()
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let chapsElt = chapXml.CreateElement ("psc", "chapters", "")
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chapsElt.SetAttribute ("version", "1.2")
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post.metadata
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|> List.filter (fun it -> it.name = "chapter")
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|> List.map (fun it ->
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TimeSpan.Parse (it.value.Split(" ")[0]), it.value.Substring (it.value.IndexOf(" ") + 1))
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|> List.sortBy fst
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|> List.iter (fun chap ->
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let chapElt = chapXml.CreateElement ("psc", "chapter", "")
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chapElt.SetAttribute ("start", (fst chap).ToString "hh:mm:ss")
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chapElt.SetAttribute ("title", snd chap)
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chapsElt.AppendChild chapElt |> ignore)
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chapXml.AppendChild chapsElt |> ignore
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item.ElementExtensions.Add ("chapters", "psc", chapXml)
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with _ -> ()
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item
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/// Add a namespace to the feed
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let private addNamespace (feed : SyndicationFeed) alias nsUrl =
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feed.AttributeExtensions.Add (XmlQualifiedName (alias, "http://www.w3.org/2000/xmlns/"), nsUrl)
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/// Add items to the top of the feed required for podcasts
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let private addPodcast webLog (rssFeed : SyndicationFeed) (feed : CustomFeed) =
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let addChild (doc : XmlDocument) name prefix value =
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let child = doc.CreateElement (name, prefix, "") |> doc.AppendChild
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child.Value <- value
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doc
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let podcast = Option.get feed.podcast
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let feedUrl = WebLog.absoluteUrl webLog feed.path
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let imageUrl =
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match podcast.imageUrl with
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| Permalink link when link.StartsWith "http" -> link
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| Permalink _ -> WebLog.absoluteUrl webLog podcast.imageUrl
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let categoryXml = XmlDocument ()
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let catElt = categoryXml.CreateElement ("itunes", "category", "")
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catElt.SetAttribute ("text", podcast.iTunesCategory)
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let subCat = categoryXml.CreateElement ("itunes", "category", "")
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subCat.SetAttribute ("text", podcast.iTunesSubcategory)
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catElt.AppendChild subCat |> ignore
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categoryXml.AppendChild catElt |> ignore
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[ "dc", "http://purl.org/dc/elements/1.1/"
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"itunes", "http://www.itunes.com/dtds/podcast-1.0.dtd"
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"psc", "http://podlove.org/simple-chapters/"
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"rawvoice", "http://www.rawvoice.com/rawvoiceRssModule/"
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]
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|> List.iter (fun (alias, nsUrl) -> addNamespace rssFeed alias nsUrl)
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rssFeed.ElementExtensions.Add
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("image", "",
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[ "title", podcast.title
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"url", imageUrl
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"link", feedUrl
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]
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|> List.fold (fun doc (name, value) -> addChild doc name "" value) (XmlDocument ()))
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// TODO: is copyright required?
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rssFeed.ElementExtensions.Add ("summary", "itunes", podcast.summary)
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rssFeed.ElementExtensions.Add ("author", "itunes", podcast.displayedAuthor)
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podcast.subtitle |> Option.iter (fun sub -> rssFeed.ElementExtensions.Add ("subtitle", "itunes", sub))
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rssFeed.ElementExtensions.Add
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("owner", "itunes",
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[ "name", podcast.displayedAuthor
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"email", podcast.email
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]
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|> List.fold (fun doc (name, value) -> addChild doc name "itunes" value) (XmlDocument ()))
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rssFeed.ElementExtensions.Add ("image", "itunes", imageUrl)
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rssFeed.ElementExtensions.Add ("category", "itunes", categoryXml)
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rssFeed.ElementExtensions.Add ("explicit", "itunes", ExplicitRating.toString podcast.explicit)
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rssFeed.ElementExtensions.Add ("subscribe", "rawvoice", feedUrl)
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// GET {any-prescribed-feed}
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let generate (feedType : FeedType) postCount : HttpHandler = fun next ctx -> backgroundTask {
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let webLog = ctx.WebLog
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let conn = ctx.Conn
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let! posts = getFeedPosts webLog feedType postCount conn
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let! authors = Post.getAuthors webLog posts conn
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let! tagMaps = Post.getTagMappings webLog posts conn
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let cats = CategoryCache.get ctx
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let podcast = match feedType with Custom feed when Option.isSome feed.podcast -> Some feed | _ -> None
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let toItem post =
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let item = toFeedItem webLog authors cats tagMaps post
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match podcast with
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| Some feed when post.metadata |> List.exists (fun it -> it.name = "media") ->
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addEpisode webLog feed post item
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| _ -> item
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let feed = SyndicationFeed ()
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feed.Title <- TextSyndicationContent webLog.name
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feed.Description <- TextSyndicationContent <| defaultArg webLog.subtitle webLog.name
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feed.LastUpdatedTime <- DateTimeOffset <| (List.head posts).updatedOn
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feed.Generator <- generator ctx
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feed.Items <- posts |> Seq.ofList |> Seq.map toItem
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feed.Language <- "en"
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feed.Id <- webLog.urlBase
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feed.Links.Add (SyndicationLink (Uri $"{webLog.urlBase}/feed.xml", "self", "", "application/rss+xml", 0L))
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feed.AttributeExtensions.Add
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(XmlQualifiedName ("content", "http://www.w3.org/2000/xmlns/"), "http://purl.org/rss/1.0/modules/content/")
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feed.ElementExtensions.Add ("link", "", webLog.urlBase)
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podcast |> Option.iter (addPodcast webLog feed)
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use mem = new MemoryStream ()
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use xml = XmlWriter.Create mem
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feed.SaveAsRss20 xml
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xml.Close ()
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let _ = mem.Seek (0L, SeekOrigin.Begin)
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let rdr = new StreamReader(mem)
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let! output = rdr.ReadToEndAsync ()
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return! (setHttpHeader "Content-Type" "text/xml" >=> setStatusCode 200 >=> setBodyFromString output) next ctx
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}
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@ -2,7 +2,6 @@
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module MyWebLog.Handlers.Post
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open System
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open Microsoft.AspNetCore.Http
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/// Parse a slug and page number from an "everything else" URL
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let private parseSlugAndPage (slugAndPage : string seq) =
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@ -27,14 +26,14 @@ type ListType =
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open MyWebLog
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/// Get all authors for a list of posts as metadata items
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let private getAuthors (webLog : WebLog) (posts : Post list) conn =
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let getAuthors (webLog : WebLog) (posts : Post list) conn =
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posts
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|> List.map (fun p -> p.authorId)
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|> List.distinct
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|> Data.WebLogUser.findNames webLog.id conn
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/// Get all tag mappings for a list of posts as metadata items
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let private getTagMappings (webLog : WebLog) (posts : Post list) =
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let getTagMappings (webLog : WebLog) (posts : Post list) =
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posts
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|> List.map (fun p -> p.tags)
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|> List.concat
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@ -46,7 +45,7 @@ open DotLiquid
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open MyWebLog.ViewModels
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/// Convert a list of posts into items ready to be displayed
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let private preparePostList webLog posts listType (url : string) pageNbr perPage ctx conn = task {
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let preparePostList webLog posts listType (url : string) pageNbr perPage ctx conn = task {
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let! authors = getAuthors webLog posts conn
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let! tagMappings = getTagMappings webLog posts conn
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let relUrl it = Some <| WebLog.relativeUrl webLog (Permalink it)
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@ -195,178 +194,6 @@ let home : HttpHandler = fun next ctx -> task {
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| None -> return! Error.notFound next ctx
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}
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/// Functions to support generating RSS feeds
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module Feed =
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open System.IO
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open System.ServiceModel.Syndication
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open System.Text.RegularExpressions
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open System.Xml
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/// The type of feed to generate
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type FeedType =
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| Standard
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| Category of CategoryId
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| Tag of string
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| Custom of CustomFeed
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/// Derive the type of RSS feed requested
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let deriveFeedType ctx webLog feedPath : (FeedType * int) option =
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let name = $"/{webLog.rss.feedName}"
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let postCount = defaultArg webLog.rss.itemsInFeed webLog.postsPerPage
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// Standard feed
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match webLog.rss.feedEnabled && feedPath = name with
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| true -> Some (Standard, postCount)
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| false ->
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// Category feed
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match CategoryCache.get ctx |> Array.tryFind (fun cat -> cat.slug = feedPath.Replace (name, "")) with
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| Some cat -> Some (Category (CategoryId cat.id), postCount)
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| None ->
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// Tag feed
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match feedPath.StartsWith "/tag/" with
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| true -> Some (Tag (feedPath.Replace("/tag/", "").Replace(name, "")), postCount)
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| false ->
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// Custom feed
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match webLog.rss.customFeeds
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|> List.tryFind (fun it -> (Permalink.toString it.path).EndsWith feedPath) with
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| Some feed ->
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Some (Custom feed,
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feed.podcast |> Option.map (fun p -> p.itemsInFeed) |> Option.defaultValue postCount)
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| None ->
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// No feed
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None
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// GET {any-prescribed-feed}
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let generate (feedType : FeedType) postCount : HttpHandler = fun next ctx -> backgroundTask {
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// TODO: stopped here; use feed type and count in the below function
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let webLog = ctx.WebLog
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let conn = ctx.Conn
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let! posts = Data.Post.findPageOfPublishedPosts webLog.id 1 postCount conn
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let! authors = getAuthors webLog posts conn
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let! tagMaps = getTagMappings webLog posts conn
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let cats = CategoryCache.get ctx
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let toItem (post : Post) =
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let plainText =
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Regex.Replace (post.text, "<(.|\n)*?>", "")
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|> function
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| txt when txt.Length < 255 -> txt
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| txt -> $"{txt.Substring (0, 252)}..."
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let item = SyndicationItem (
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Id = WebLog.absoluteUrl webLog post.permalink,
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Title = TextSyndicationContent.CreateHtmlContent post.title,
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PublishDate = DateTimeOffset post.publishedOn.Value,
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LastUpdatedTime = DateTimeOffset post.updatedOn,
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Content = TextSyndicationContent.CreatePlaintextContent plainText)
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item.AddPermalink (Uri item.Id)
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let encoded =
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post.text.Replace("src=\"/", $"src=\"{webLog.urlBase}/").Replace ("href=\"/", $"href=\"{webLog.urlBase}/")
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item.ElementExtensions.Add ("encoded", "http://purl.org/rss/1.0/modules/content/", encoded)
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item.Authors.Add (SyndicationPerson (
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Name = (authors |> List.find (fun a -> a.name = WebLogUserId.toString post.authorId)).value))
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[ post.categoryIds
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|> List.map (fun catId ->
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let cat = cats |> Array.find (fun c -> c.id = CategoryId.toString catId)
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SyndicationCategory (cat.name, WebLog.absoluteUrl webLog (Permalink $"category/{cat.slug}/"), cat.name))
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post.tags
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|> List.map (fun tag ->
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let urlTag =
|
||||
match tagMaps |> List.tryFind (fun tm -> tm.tag = tag) with
|
||||
| Some tm -> tm.urlValue
|
||||
| None -> tag.Replace (" ", "+")
|
||||
SyndicationCategory (tag, WebLog.absoluteUrl webLog (Permalink $"tag/{urlTag}/"), $"{tag} (tag)"))
|
||||
]
|
||||
|> List.concat
|
||||
|> List.iter item.Categories.Add
|
||||
item
|
||||
|
||||
|
||||
let feed = SyndicationFeed ()
|
||||
feed.Title <- TextSyndicationContent webLog.name
|
||||
feed.Description <- TextSyndicationContent <| defaultArg webLog.subtitle webLog.name
|
||||
feed.LastUpdatedTime <- DateTimeOffset <| (List.head posts).updatedOn
|
||||
feed.Generator <- generator ctx
|
||||
feed.Items <- posts |> Seq.ofList |> Seq.map toItem
|
||||
feed.Language <- "en"
|
||||
feed.Id <- webLog.urlBase
|
||||
|
||||
feed.Links.Add (SyndicationLink (Uri $"{webLog.urlBase}/feed.xml", "self", "", "application/rss+xml", 0L))
|
||||
feed.AttributeExtensions.Add
|
||||
(XmlQualifiedName ("content", "http://www.w3.org/2000/xmlns/"), "http://purl.org/rss/1.0/modules/content/")
|
||||
feed.ElementExtensions.Add ("link", "", webLog.urlBase)
|
||||
|
||||
use mem = new MemoryStream ()
|
||||
use xml = XmlWriter.Create mem
|
||||
feed.SaveAsRss20 xml
|
||||
xml.Close ()
|
||||
|
||||
let _ = mem.Seek (0L, SeekOrigin.Begin)
|
||||
let rdr = new StreamReader(mem)
|
||||
let! output = rdr.ReadToEndAsync ()
|
||||
|
||||
return! ( setHttpHeader "Content-Type" "text/xml" >=> setStatusCode 200 >=> setBodyFromString output) next ctx
|
||||
}
|
||||
|
||||
|
||||
/// Sequence where the first returned value is the proper handler for the link
|
||||
let private deriveAction (ctx : HttpContext) : HttpHandler seq =
|
||||
let webLog = ctx.WebLog
|
||||
let conn = ctx.Conn
|
||||
let textLink =
|
||||
let _, extra = WebLog.hostAndPath webLog
|
||||
let url = string ctx.Request.Path
|
||||
(if extra = "" then url else url.Substring extra.Length).ToLowerInvariant ()
|
||||
let await it = (Async.AwaitTask >> Async.RunSynchronously) it
|
||||
seq {
|
||||
debug "Post" ctx (fun () -> $"Considering URL {textLink}")
|
||||
// Home page directory without the directory slash
|
||||
if textLink = "" then yield redirectTo true (WebLog.relativeUrl webLog Permalink.empty)
|
||||
let permalink = Permalink (textLink.Substring 1)
|
||||
// Current post
|
||||
match Data.Post.findByPermalink permalink webLog.id conn |> await with
|
||||
| Some post ->
|
||||
let model = preparePostList webLog [ post ] SinglePost "" 1 1 ctx conn |> await
|
||||
model.Add ("page_title", post.title)
|
||||
yield fun next ctx -> themedView "single-post" next ctx model
|
||||
| None -> ()
|
||||
// Current page
|
||||
match Data.Page.findByPermalink permalink webLog.id conn |> await with
|
||||
| Some page ->
|
||||
yield fun next ctx ->
|
||||
Hash.FromAnonymousObject {| page = DisplayPage.fromPage webLog page; page_title = page.title |}
|
||||
|> themedView (defaultArg page.template "single-page") next ctx
|
||||
| None -> ()
|
||||
// RSS feed
|
||||
match Feed.deriveFeedType ctx webLog textLink with
|
||||
| Some (feedType, postCount) -> yield Feed.generate feedType postCount
|
||||
| None -> ()
|
||||
// Post differing only by trailing slash
|
||||
let altLink = Permalink (if textLink.EndsWith "/" then textLink[..textLink.Length - 2] else $"{textLink}/")
|
||||
match Data.Post.findByPermalink altLink webLog.id conn |> await with
|
||||
| Some post -> yield redirectTo true (WebLog.relativeUrl webLog post.permalink)
|
||||
| None -> ()
|
||||
// Page differing only by trailing slash
|
||||
match Data.Page.findByPermalink altLink webLog.id conn |> await with
|
||||
| Some page -> yield redirectTo true (WebLog.relativeUrl webLog page.permalink)
|
||||
| None -> ()
|
||||
// Prior post
|
||||
match Data.Post.findCurrentPermalink [ permalink; altLink ] webLog.id conn |> await with
|
||||
| Some link -> yield redirectTo true (WebLog.relativeUrl webLog link)
|
||||
| None -> ()
|
||||
// Prior page
|
||||
match Data.Page.findCurrentPermalink [ permalink; altLink ] webLog.id conn |> await with
|
||||
| Some link -> yield redirectTo true (WebLog.relativeUrl webLog link)
|
||||
| None -> ()
|
||||
}
|
||||
|
||||
// GET {all-of-the-above}
|
||||
let catchAll : HttpHandler = fun next ctx -> task {
|
||||
match deriveAction ctx |> Seq.tryHead with
|
||||
| Some handler -> return! handler next ctx
|
||||
| None -> return! Error.notFound next ctx
|
||||
}
|
||||
|
||||
// GET /admin/posts
|
||||
// GET /admin/posts/page/{pageNbr}
|
||||
let all pageNbr : HttpHandler = fun next ctx -> task {
|
||||
|
||||
@ -4,6 +4,72 @@ module MyWebLog.Handlers.Routes
|
||||
open Giraffe
|
||||
open MyWebLog
|
||||
|
||||
/// Module to resolve routes that do not match any other known route (web blog content)
|
||||
module CatchAll =
|
||||
|
||||
open DotLiquid
|
||||
open Microsoft.AspNetCore.Http
|
||||
open MyWebLog.ViewModels
|
||||
|
||||
/// Sequence where the first returned value is the proper handler for the link
|
||||
let private deriveAction (ctx : HttpContext) : HttpHandler seq =
|
||||
let webLog = ctx.WebLog
|
||||
let conn = ctx.Conn
|
||||
let textLink =
|
||||
let _, extra = WebLog.hostAndPath webLog
|
||||
let url = string ctx.Request.Path
|
||||
(if extra = "" then url else url.Substring extra.Length).ToLowerInvariant ()
|
||||
let await it = (Async.AwaitTask >> Async.RunSynchronously) it
|
||||
seq {
|
||||
debug "Post" ctx (fun () -> $"Considering URL {textLink}")
|
||||
// Home page directory without the directory slash
|
||||
if textLink = "" then yield redirectTo true (WebLog.relativeUrl webLog Permalink.empty)
|
||||
let permalink = Permalink (textLink.Substring 1)
|
||||
// Current post
|
||||
match Data.Post.findByPermalink permalink webLog.id conn |> await with
|
||||
| Some post ->
|
||||
let model = Post.preparePostList webLog [ post ] Post.ListType.SinglePost "" 1 1 ctx conn |> await
|
||||
model.Add ("page_title", post.title)
|
||||
yield fun next ctx -> themedView "single-post" next ctx model
|
||||
| None -> ()
|
||||
// Current page
|
||||
match Data.Page.findByPermalink permalink webLog.id conn |> await with
|
||||
| Some page ->
|
||||
yield fun next ctx ->
|
||||
Hash.FromAnonymousObject {| page = DisplayPage.fromPage webLog page; page_title = page.title |}
|
||||
|> themedView (defaultArg page.template "single-page") next ctx
|
||||
| None -> ()
|
||||
// RSS feed
|
||||
match Feed.deriveFeedType ctx textLink with
|
||||
| Some (feedType, postCount) -> yield Feed.generate feedType postCount
|
||||
| None -> ()
|
||||
// Post differing only by trailing slash
|
||||
let altLink = Permalink (if textLink.EndsWith "/" then textLink[..textLink.Length - 2] else $"{textLink}/")
|
||||
match Data.Post.findByPermalink altLink webLog.id conn |> await with
|
||||
| Some post -> yield redirectTo true (WebLog.relativeUrl webLog post.permalink)
|
||||
| None -> ()
|
||||
// Page differing only by trailing slash
|
||||
match Data.Page.findByPermalink altLink webLog.id conn |> await with
|
||||
| Some page -> yield redirectTo true (WebLog.relativeUrl webLog page.permalink)
|
||||
| None -> ()
|
||||
// Prior post
|
||||
match Data.Post.findCurrentPermalink [ permalink; altLink ] webLog.id conn |> await with
|
||||
| Some link -> yield redirectTo true (WebLog.relativeUrl webLog link)
|
||||
| None -> ()
|
||||
// Prior page
|
||||
match Data.Page.findCurrentPermalink [ permalink; altLink ] webLog.id conn |> await with
|
||||
| Some link -> yield redirectTo true (WebLog.relativeUrl webLog link)
|
||||
| None -> ()
|
||||
}
|
||||
|
||||
// GET {all-of-the-above}
|
||||
let route : HttpHandler = fun next ctx -> task {
|
||||
match deriveAction ctx |> Seq.tryHead with
|
||||
| Some handler -> return! handler next ctx
|
||||
| None -> return! Error.notFound next ctx
|
||||
}
|
||||
|
||||
/// The primary myWebLog router
|
||||
let router : HttpHandler = choose [
|
||||
GET >=> choose [
|
||||
route "/" >=> Post.home
|
||||
@ -69,7 +135,7 @@ let router : HttpHandler = choose [
|
||||
route "/log-on" >=> User.doLogOn
|
||||
]
|
||||
])
|
||||
GET >=> Post.catchAll
|
||||
GET >=> CatchAll.route
|
||||
Error.notFound
|
||||
]
|
||||
|
||||
|
||||
@ -13,6 +13,7 @@
|
||||
<Compile Include="Handlers\Helpers.fs" />
|
||||
<Compile Include="Handlers\Admin.fs" />
|
||||
<Compile Include="Handlers\Post.fs" />
|
||||
<Compile Include="Handlers\Feed.fs" />
|
||||
<Compile Include="Handlers\User.fs" />
|
||||
<Compile Include="Handlers\Routes.fs" />
|
||||
<Compile Include="DotLiquidBespoke.fs" />
|
||||
|
||||
Loading…
Reference in New Issue
Block a user