V2 #1
|
|
@ -23,28 +23,37 @@ type FeedType =
|
|||
/// 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 debug = debug "Feed" ctx
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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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||||
debug (fun () -> $"Considering potential feed for {feedPath} (configured feed name {name})")
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// Standard feed
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match webLog.rss.feedEnabled && feedPath = name with
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| true -> Some (StandardFeed feedPath, postCount)
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| true ->
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debug (fun () -> "Found standard feed")
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||||
Some (StandardFeed feedPath, 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, feedPath), postCount)
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||||
| Some cat ->
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debug (fun () -> "Found category feed")
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Some (CategoryFeed (CategoryId cat.id, feedPath), 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, ""), feedPath), postCount)
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| true ->
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debug (fun () -> "Found tag feed")
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Some (TagFeed (feedPath.Replace("/tag/", "").Replace(name, ""), feedPath), 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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|> List.tryFind (fun it -> feedPath.EndsWith (Permalink.toString it.path)) with
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| Some feed ->
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debug (fun () -> "Found custom feed")
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Some (Custom (feed, feedPath),
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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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debug (fun () -> $"No matching feed found")
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None
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/// Determine the function to retrieve posts for the given feed
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@ -61,6 +70,25 @@ let private getFeedPosts (webLog : WebLog) feedType =
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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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/// XML namespaces for building RSS feeds
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[<RequireQualifiedAccess>]
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module private Namespace =
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/// Enables encoded (HTML) content
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let content = "http://purl.org/rss/1.0/modules/content/"
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/// The dc XML namespace
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let dc = "http://purl.org/dc/elements/1.1/"
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/// iTunes elements
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let iTunes = "http://www.itunes.com/dtds/podcast-1.0.dtd"
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/// Enables chapters
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let psc = "http://podlove.org/simple-chapters/"
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/// Enables another "subscribe" option
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let rawVoice = "http://www.rawvoice.com/rawvoiceRssModule/"
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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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@ -78,7 +106,7 @@ let private toFeedItem webLog (authors : MetaItem list) (cats : DisplayCategory[
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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.ElementExtensions.Add ("encoded", Namespace.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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@ -122,26 +150,25 @@ let private addEpisode webLog (feed : CustomFeed) (post : Post) (item : Syndicat
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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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let xmlDoc = XmlDocument ()
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let enclosure = xmlDoc.CreateElement "enclosure"
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enclosure.SetAttribute ("url", epMediaUrl)
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meta "length" |> Option.iter (fun it -> enclosure.SetAttribute ("length", it.value))
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epMediaType |> Option.iter (fun typ -> enclosure.SetAttribute ("type", typ))
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||||
item.ElementExtensions.Add enclosure
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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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item.ElementExtensions.Add ("creator", Namespace.dc, podcast.displayedAuthor)
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item.ElementExtensions.Add ("author", Namespace.iTunes, podcast.displayedAuthor)
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item.ElementExtensions.Add ("summary", Namespace.iTunes, stripHtml post.text)
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item.ElementExtensions.Add ("image", Namespace.iTunes, epImageUrl)
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item.ElementExtensions.Add ("explicit", Namespace.iTunes, epExplicit)
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meta "subtitle" |> Option.iter (fun it -> item.ElementExtensions.Add ("subtitle", Namespace.iTunes, it.value))
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meta "duration" |> Option.iter (fun it -> item.ElementExtensions.Add ("duration", Namespace.iTunes, it.value))
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||||
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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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let chapters = xmlDoc.CreateElement ("psc", "chapters", Namespace.psc)
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chapters.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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@ -149,13 +176,12 @@ let private addEpisode webLog (feed : CustomFeed) (post : Post) (item : Syndicat
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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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let chapter = xmlDoc.CreateElement ("psc", "chapter", Namespace.psc)
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chapter.SetAttribute ("start", (fst chap).ToString "hh:mm:ss")
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chapter.SetAttribute ("title", snd chap)
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chapters.AppendChild chapter |> ignore)
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chapXml.AppendChild chapsElt |> ignore
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item.ElementExtensions.Add ("chapters", "psc", chapXml)
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item.ElementExtensions.Add chapters
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with _ -> ()
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item
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||||
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||||
|
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@ -165,10 +191,12 @@ let private addNamespace (feed : SyndicationFeed) alias 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 addChild (doc : XmlDocument) ns prefix name value (elt : XmlElement) =
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||||
let child =
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||||
if ns = "" then doc.CreateElement name else doc.CreateElement (prefix, name, ns)
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|> elt.AppendChild
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||||
child.InnerText <- value
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elt
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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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|
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@ -177,43 +205,42 @@ let private addPodcast webLog (rssFeed : SyndicationFeed) (feed : CustomFeed) =
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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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||||
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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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||||
podcast.iTunesSubcategory
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|> Option.iter (fun subCat ->
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let subCatElt = categoryXml.CreateElement ("itunes", "category", "")
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subCatElt.SetAttribute ("text", subCat)
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catElt.AppendChild subCatElt |> ignore)
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categoryXml.AppendChild catElt |> ignore
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let xmlDoc = XmlDocument ()
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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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||||
[ "dc", Namespace.dc; "itunes", Namespace.iTunes; "psc", Namespace.psc; "rawvoice", Namespace.rawVoice ]
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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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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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||||
]
|
||||
|> List.fold (fun doc (name, value) -> addChild doc name "itunes" value) (XmlDocument ()))
|
||||
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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||||
let categorization =
|
||||
let it = xmlDoc.CreateElement ("itunes", "category", Namespace.iTunes)
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||||
it.SetAttribute ("text", podcast.iTunesCategory)
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||||
podcast.iTunesSubcategory
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||||
|> Option.iter (fun subCat ->
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||||
let subCatElt = xmlDoc.CreateElement ("itunes", "category", Namespace.iTunes)
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||||
subCatElt.SetAttribute ("text", subCat)
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||||
it.AppendChild subCatElt |> ignore)
|
||||
it
|
||||
let image =
|
||||
[ "title", podcast.title
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||||
"url", imageUrl
|
||||
"link", feedUrl
|
||||
]
|
||||
|> List.fold (fun elt (name, value) -> addChild xmlDoc "" "" name value elt) (xmlDoc.CreateElement "image")
|
||||
let owner =
|
||||
[ "name", podcast.displayedAuthor
|
||||
"email", podcast.email
|
||||
]
|
||||
|> List.fold (fun elt (name, value) -> addChild xmlDoc Namespace.iTunes "itunes" name value elt)
|
||||
(xmlDoc.CreateElement ("itunes", "owner", Namespace.iTunes))
|
||||
|
||||
rssFeed.ElementExtensions.Add image
|
||||
rssFeed.ElementExtensions.Add owner
|
||||
rssFeed.ElementExtensions.Add categorization
|
||||
rssFeed.ElementExtensions.Add ("summary", Namespace.iTunes, podcast.summary)
|
||||
rssFeed.ElementExtensions.Add ("author", Namespace.iTunes, podcast.displayedAuthor)
|
||||
rssFeed.ElementExtensions.Add ("image", Namespace.iTunes, imageUrl)
|
||||
rssFeed.ElementExtensions.Add ("explicit", Namespace.iTunes, ExplicitRating.toString podcast.explicit)
|
||||
rssFeed.ElementExtensions.Add ("subscribe", Namespace.rawVoice, feedUrl)
|
||||
podcast.subtitle |> Option.iter (fun sub -> rssFeed.ElementExtensions.Add ("subtitle", Namespace.iTunes, sub))
|
||||
|
||||
/// Get the feed's self reference and non-feed link
|
||||
let private selfAndLink webLog feedType =
|
||||
|
|
@ -227,22 +254,26 @@ let private selfAndLink webLog feedType =
|
|||
|
||||
/// Create a feed with a known non-zero-length list of posts
|
||||
let createFeed (feedType : FeedType) posts : HttpHandler = fun next ctx -> backgroundTask {
|
||||
let webLog = ctx.WebLog
|
||||
let conn = ctx.Conn
|
||||
let! authors = Post.getAuthors webLog posts conn
|
||||
let! tagMaps = Post.getTagMappings webLog posts conn
|
||||
let cats = CategoryCache.get ctx
|
||||
let podcast = match feedType with Custom (feed, _) when Option.isSome feed.podcast -> Some feed | _ -> None
|
||||
let webLog = ctx.WebLog
|
||||
let conn = ctx.Conn
|
||||
let! authors = Post.getAuthors webLog posts conn
|
||||
let! tagMaps = Post.getTagMappings webLog posts conn
|
||||
let cats = CategoryCache.get ctx
|
||||
let podcast = match feedType with Custom (feed, _) when Option.isSome feed.podcast -> Some feed | _ -> None
|
||||
let self, link = selfAndLink webLog feedType
|
||||
|
||||
let toItem post =
|
||||
let item = toFeedItem webLog authors cats tagMaps post
|
||||
match podcast with
|
||||
| Some feed when post.metadata |> List.exists (fun it -> it.name = "media") ->
|
||||
addEpisode webLog feed post item
|
||||
| Some _ ->
|
||||
warn "Feed" ctx $"[{webLog.name} {Permalink.toString self}] \"{stripHtml post.title}\" has no media"
|
||||
item
|
||||
| _ -> item
|
||||
|
||||
let feed = SyndicationFeed ()
|
||||
addNamespace feed "content" "http://purl.org/rss/1.0/modules/content/"
|
||||
addNamespace feed "content" Namespace.content
|
||||
|
||||
feed.Title <- TextSyndicationContent webLog.name
|
||||
feed.Description <- TextSyndicationContent <| defaultArg webLog.subtitle webLog.name
|
||||
|
|
@ -253,7 +284,6 @@ let createFeed (feedType : FeedType) posts : HttpHandler = fun next ctx -> backg
|
|||
feed.Id <- webLog.urlBase
|
||||
webLog.rss.copyright |> Option.iter (fun copy -> feed.Copyright <- TextSyndicationContent copy)
|
||||
|
||||
let self, link = selfAndLink webLog feedType
|
||||
feed.Links.Add (SyndicationLink (Uri (WebLog.absoluteUrl webLog self), "self", "", "application/rss+xml", 0L))
|
||||
feed.ElementExtensions.Add ("link", "", WebLog.absoluteUrl webLog link)
|
||||
|
||||
|
|
|
|||
|
|
@ -176,8 +176,15 @@ let private isDebugEnabled (ctx : HttpContext) =
|
|||
debugEnabled.Value
|
||||
|
||||
/// Log a debug message
|
||||
let debug name ctx (msg : unit -> string) =
|
||||
let debug (name : string) ctx msg =
|
||||
if isDebugEnabled ctx then
|
||||
let fac = ctx.RequestServices.GetRequiredService<ILoggerFactory> ()
|
||||
let log = fac.CreateLogger $"MyWebLog.Handlers.{name}"
|
||||
log.LogDebug (msg ())
|
||||
|
||||
/// Log a warning message
|
||||
let warn (name : string) (ctx : HttpContext) msg =
|
||||
let fac = ctx.RequestServices.GetRequiredService<ILoggerFactory> ()
|
||||
let log = fac.CreateLogger $"MyWebLog.Handlers.{name}"
|
||||
log.LogWarning msg
|
||||
|
||||
|
|
@ -15,19 +15,21 @@ module CatchAll =
|
|||
let private deriveAction (ctx : HttpContext) : HttpHandler seq =
|
||||
let webLog = ctx.WebLog
|
||||
let conn = ctx.Conn
|
||||
let debug = debug "Routes.CatchAll" ctx
|
||||
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}")
|
||||
debug (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 ->
|
||||
debug (fun () -> $"Found post by permalink")
|
||||
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
|
||||
|
|
@ -35,31 +37,43 @@ module CatchAll =
|
|||
// Current page
|
||||
match Data.Page.findByPermalink permalink webLog.id conn |> await with
|
||||
| Some page ->
|
||||
debug (fun () -> $"Found page by permalink")
|
||||
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
|
||||
| Some (feedType, postCount) ->
|
||||
debug (fun () -> $"Found RSS feed")
|
||||
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)
|
||||
| Some post ->
|
||||
debug (fun () -> $"Found post by trailing-slash-agnostic permalink")
|
||||
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)
|
||||
| Some page ->
|
||||
debug (fun () -> $"Found page by trailing-slash-agnostic permalink")
|
||||
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)
|
||||
| Some link ->
|
||||
debug (fun () -> $"Found post by prior permalink")
|
||||
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)
|
||||
| Some link ->
|
||||
debug (fun () -> $"Found page by prior permalink")
|
||||
yield redirectTo true (WebLog.relativeUrl webLog link)
|
||||
| None -> ()
|
||||
debug (fun () -> $"No content found")
|
||||
}
|
||||
|
||||
// GET {all-of-the-above}
|
||||
|
|
|
|||
Loading…
Reference in New Issue
Block a user