winter-software/Wave
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Implemented RSS feed with Author filter

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This commit is contained in:
Mia Rose Winter 2024-03-14 12:17:30 +01:00
parent 9f6f3cb142
commit 7cd24d29f7
Signed by: miawinter
GPG key ID: 4B6F6A83178F595E
2 changed files with 40 additions and 13 deletions
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10
Wave/Components/Pages/UserView.razor
View file

@ -1,12 +1,22 @@
@page "/profile/{id:guid}"
@using Wave.Data
@using Microsoft.EntityFrameworkCore
@using Microsoft.Extensions.Options
@using Wave.Utilities
@inject IDbContextFactory<ApplicationDbContext> ContextFactory
@inject IOptions<Customization> Customizations
@inject IOptions<Features> Features
@inject IStringLocalizer<UserView> Localizer
@inject IMessageDisplay Message
<HeadContent>
@if (Features.Value.Rss && User is not null) {
<link rel="alternate" type="application/rss+xml" title="RSS Feed on @Customizations.Value.AppName | User @User.FullName" href="/rss/rss.xml?author=@User.Id">
<link rel="alternate" type="application/atom+xml" title="Atom RSS Feed on @Customizations.Value.AppName | User @User.FullName" href="/rss/atom.xml?author=@User.Id">
}
</HeadContent>
<PageTitle>@(TitlePrefix + @Localizer["Title"] + " | " + (User?.FullName ?? Localizer["NotFound_Title"]))</PageTitle>
@if (User is null) {

43
Wave/Controllers/RssController.cs
View file

@ -1,5 +1,6 @@
using System.Net;
using System.ServiceModel.Syndication;
using System.Web;
using Microsoft.AspNetCore.Mvc;
using Microsoft.EntityFrameworkCore;
using Microsoft.Extensions.Options;
@ -18,10 +19,10 @@ public class RssController(IOptions<Customization> customizations, ApplicationDb
[HttpGet("rss.xml", Name = "RssFeed")]
[Produces("application/rss+xml")]
[ResponseCache(Duration = 60*15, Location = ResponseCacheLocation.Any)]
public async Task<IActionResult> GetRssFeedAsync(string? category = null) {
public async Task<IActionResult> GetRssFeedAsync(string? category = null, Guid? author = null) {
if (!Features.Value.Rss) return new JsonResult("RSS is disabled") {StatusCode = StatusCodes.Status401Unauthorized};
var feed = await CreateFeedAll("RssFeed", category);
var feed = await CreateFeedAll("RssFeed", category, author);
if (feed is null) return NotFound();
Response.ContentType = "application/atom+xml";
return Ok(feed);
@ -29,16 +30,16 @@ public class RssController(IOptions<Customization> customizations, ApplicationDb
[HttpGet("atom.xml", Name = "AtomFeed")]
[Produces("application/atom+xml")]
[ResponseCache(Duration = 60*15, Location = ResponseCacheLocation.Any)]
public async Task<IActionResult> GetAtomFeedAsync(string? category = null) {
public async Task<IActionResult> GetAtomFeedAsync(string? category = null, Guid? author = null) {
if (!Features.Value.Rss) return new JsonResult("RSS is disabled") {StatusCode = StatusCodes.Status401Unauthorized};
var feed = await CreateFeedAll("AtomFeed", category);
var feed = await CreateFeedAll("AtomFeed", category, author);
if (feed is null) return NotFound();
Response.ContentType = "application/atom+xml";
return Ok(feed);
}
private async Task<SyndicationFeed?> CreateFeedAll(string? routeName, string? category) {
private async Task<SyndicationFeed?> CreateFeedAll(string? routeName, string? category, Guid? author) {
var now = DateTimeOffset.UtcNow;
IQueryable<Article> query = Context.Set<Article>()
.Include(a => a.Author)
@ -49,16 +50,21 @@ public class RssController(IOptions<Customization> customizations, ApplicationDb
if (!string.IsNullOrWhiteSpace(category)) {
query = query.Where(a => a.Categories.Any(c => c.Name == category));
}
if (author is { } a1) {
string authorString = a1.ToString();
query = query.Where(a => a.Author.Id == authorString);
}
query = query.Take(15);
var articles = await query.ToListAsync();
if (articles.Count < 1) return null;
var date = query.Max(a => a.PublishDate);
return CreateFeedAsync(articles, date, routeName, category);
return CreateFeedAsync(articles, date, routeName, category, author);
}
private SyndicationFeed CreateFeedAsync(IEnumerable<Article> articles, DateTimeOffset date, string? routeName, string? category) {
private SyndicationFeed CreateFeedAsync(IEnumerable<Article> articles, DateTimeOffset date,
string? routeName, string? category, Guid? author) {
var customizations = Customizations.Value;
string appName = customizations.AppName;
@ -68,17 +74,28 @@ public class RssController(IOptions<Customization> customizations, ApplicationDb
} else {
host = new Uri($"https://{Request.Host}", UriKind.Absolute);
}
var feedLink = new Uri(Url.RouteUrl(routeName, null, "https", host.Host) ?? host.AbsoluteUri);
var htmlLink = host;
var feedLink = new UriBuilder(Url.RouteUrl(routeName, null, "https", host.Host) ?? host.AbsoluteUri);
var htmlLink = new UriBuilder(host);
if (category is not null) {
feedLink = new Uri(feedLink.AbsoluteUri + "?category=" + WebUtility.HtmlEncode(category));
htmlLink = new Uri(host, "/category/" + WebUtility.HtmlEncode(category));
feedLink.Query = "category=" + WebUtility.HtmlEncode(category);
htmlLink.Path = "/category/" + WebUtility.HtmlEncode(category);
}
if (author is not null) {
var query = HttpUtility.ParseQueryString(feedLink.Query);
query.Add("author", author.ToString());
feedLink.Query = query.ToString();
if (htmlLink.Path.Length < 2) {
htmlLink.Path = "/profile/" + author;
} else {
htmlLink.Query = "?author=" + author;
}
}
var feed = new SyndicationFeed(appName, "Feed on " + appName, htmlLink, host.AbsoluteUri, date) {
var feed = new SyndicationFeed(appName, "Feed on " + appName, htmlLink.Uri, host.AbsoluteUri, date) {
TimeToLive = TimeSpan.FromMinutes(15),
Generator = "Wave",
Links = { new SyndicationLink(feedLink) {RelationshipType = "self"} },
Links = { new SyndicationLink(feedLink.Uri) {RelationshipType = "self"} },
Items = GetItems(articles, host)
};
if (category != null) feed.Categories.Add(new SyndicationCategory(category));