public async Task <IEnumerable <BlogRssItem> > GetUprofileBlogPosts()
{
var runtimeCache = ApplicationContext.Current.ApplicationCache.RuntimeCache;
var cached = (IEnumerable <BlogRssItem>)runtimeCache.GetCacheItem("CommunityUProfileBlogPosts");
if (cached != null)
{
return(cached);
}
try
{
using (var client = new HttpClient())
{
var result = await client.GetStringAsync("https://umbraco.com/blog/rss-uprofile-feed/");
if (result == null)
{
return(null);
}
var feed = XElement.Parse(result);
var posts = new List <BlogRssItem>();
var channel = feed.Element("channel");
var items = channel.GetElements("item");
foreach (var post in items)
{
var title = post.GetElementValue <string>("title")?.Trim();
var link = post.GetElementValue <string>("link")?.Trim();
var description = post.GetElementValue <string>("description")?.Trim();
var image = post.Element("image");
var thumbnail = image?.GetElementValue <string>("url")?.Trim();
var item = new BlogRssItem()
{
Title = title,
Link = link,
Thumbnail = thumbnail,
Description = description
};
posts.Add(item);
}
runtimeCache.InsertCacheItem("CommunityUProfileBlogPosts", () => posts, TimeSpan.FromHours(2));
return(posts);
}
}
catch (Exception ex)
{
LogHelper.Error <BlogPostsService>("Unable to fetch uprofile posts", ex);
}
return(null);
}
public BlogRssItem[] GetBlogPosts(PerformContext context)
{
var posts = new List <BlogRssItem>();
var progressBar = context.WriteProgressBar();
var blogs = GetBlogs();
foreach (var blog in blogs.WithProgress(progressBar, blogs.Length))
{
try
{
string raw;
const string userAgent = "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3393.4 Safari/537.36";
context.WriteLine($"Processing blog {blog.Title}");
// Initialize a new web client (with the encoding specified for the blog)
using (var wc = new WebClient())
{
wc.Headers.Add(HttpRequestHeader.UserAgent, userAgent);
wc.Encoding = blog.Encoding;
// Download the raw XML
raw = wc.DownloadString(blog.RssUrl);
raw = RemoveLeadingCharacters(raw).Replace("a10:updated", "pubDate");
}
// Parse the XML into a new instance of XElement
var feed = XElement.Parse(raw);
var channel = feed.Element("channel");
var channelTitle = channel.GetElementValue("title");
var channelLink = channel.GetElementValue("link");
var channelDescription = channel.GetElementValue("description");
var channelLastBuildDate = channel.GetElementValue("lastBuildDate");
var channelLangauge = channel.GetElementValue("language");
var rssChannel = new BlogRssChannel
{
Id = blog.Id,
Title = channelTitle,
Link = channelLink
};
var items = channel.GetElements("item");
foreach (var item in items)
{
var title = item.GetElementValue("title");
var link = (string.IsNullOrEmpty(item.GetElementValue("link"))
? item.GetElementValue("guid")
: item.GetElementValue("link"))
.Trim();
var pubDate = GetPublishDate(item);
if (pubDate == default(DateTimeOffset))
{
continue;
}
var approvedCategories = new List <string> {
"umbraco", "codegarden", "articulate", "examine"
};
var categories = item.GetElements("category");
if (categories.Any())
{
var includeItem = title.ToLowerInvariant().ContainsAny(approvedCategories);
foreach (var category in categories)
{
// no need to check more if the item is already approved
if (includeItem)
{
continue;
}
foreach (var approvedCategory in approvedCategories)
{
if (category.Value.ToLowerInvariant().Contains(approvedCategory.ToLowerInvariant()))
{
includeItem = true;
}
}
}
if (includeItem == false)
{
var allCategories = string.Join(",", categories.Select(i => i.Value));
context.SetTextColor(ConsoleTextColor.DarkYellow);
context.WriteLine($"Not including post titled {title} because it was not in an approved category. The categories it was found in: {allCategories}. [{link}]");
context.ResetTextColor();
continue;
}
}
// Blog has no category info and posts things unrelated to Umbraco, check there's related keywords in the title
if (blog.CheckTitles)
{
var includeItem = false;
foreach (var approvedCategory in approvedCategories)
{
if (title.ToLowerInvariant().Contains(approvedCategory.ToLowerInvariant()))
{
includeItem = true;
}
}
// Blog post seems unrelated to Umbraco, skip it
if (includeItem == false)
{
continue;
}
}
var blogPost = new BlogRssItem
{
Channel = rssChannel,
Title = title,
// some sites store the link in the <guid/> element
Link = link,
PublishedDate = pubDate
};
posts.Add(blogPost);
}
// Get the avatar locally so that we can use ImageProcessor and serve it over https
using (var wc = new WebClient())
{
wc.Headers.Add(HttpRequestHeader.UserAgent, userAgent);
var baseLogoPath = HostingEnvironment.MapPath("~/media/blogs/");
if (Directory.Exists(baseLogoPath) == false)
{
Directory.CreateDirectory(baseLogoPath);
}
var logoExtension = GetFileExtension(blog.LogoUrl);
var logoPath = baseLogoPath + blog.Id + logoExtension;
wc.DownloadFile(blog.LogoUrl, logoPath);
}
}
catch (Exception ex)
{
context.SetTextColor(ConsoleTextColor.Red);
context.WriteLine("Unable to get blog posts for: " + blog.RssUrl, ex);
context.ResetTextColor();
}
}
return(posts.OrderByDescending(x => x.PublishedDate).ToArray());
}
public BlogCachedRssItem(BlogInfo blog, BlogRssItem item)
{
Blog = blog;
Item = item;
}
public BlogRssItem[] GetBlogPosts(PerformContext context)
{
var posts = new List <BlogRssItem>();
var progressBar = context.WriteProgressBar();
var blogs = GetBlogs();
foreach (var blog in blogs.WithProgress(progressBar, blogs.Length))
{
try
{
string raw;
context.WriteLine($"Processing blog {blog.Title}");
// Initialize a new web client (with the encoding specified for the blog)
using (var wc = new WebClient())
{
wc.Encoding = blog.Encoding;
// Download the raw XML
raw = wc.DownloadString(blog.RssUrl);
raw = RemoveLeadingCharacters(raw).Replace("a10:updated", "pubDate");
}
// Parse the XML into a new instance of XElement
var feed = XElement.Parse(raw);
var channel = feed.Element("channel");
var channelTitle = channel.GetElementValue("title");
var channelLink = channel.GetElementValue("link");
var channelDescription = channel.GetElementValue("description");
var channelLastBuildDate = channel.GetElementValue("lastBuildDate");
var channelLangauge = channel.GetElementValue("language");
var rssChannel = new BlogRssChannel
{
Id = blog.Id,
Title = channelTitle,
Link = channelLink
};
var items = channel.GetElements("item");
foreach (var item in items)
{
var title = item.GetElementValue("title");
var link = (string.IsNullOrEmpty(item.GetElementValue("link"))
? item.GetElementValue("guid")
: item.GetElementValue("link"))
.Trim();
var pubDate = GetPublishDate(item);
if (pubDate == default(DateTimeOffset))
{
continue;
}
var approvedCategories = new List <string> {
"umbraco", "codegarden", "articulate", "examine"
};
var categories = item.GetElements("category");
if (categories.Any())
{
var includeItem = title.ToLowerInvariant().ContainsAny(approvedCategories);
foreach (var category in categories)
{
// no need to check more if the item is already approved
if (includeItem)
{
continue;
}
foreach (var approvedCategory in approvedCategories)
{
if (category.Value.ToLowerInvariant().Contains(approvedCategory.ToLowerInvariant()))
{
includeItem = true;
}
}
}
if (includeItem == false)
{
var allCategories = string.Join(",", categories.Select(i => i.Value));
context.SetTextColor(ConsoleTextColor.Red);
context.WriteLine($"Not including post titled {title} because it was not in an approved category. The categories it was found in: {allCategories}. [{link}]");
context.ResetTextColor();
continue;
}
}
// Blog has no category info and posts things unrelated to Umbraco, check there's related keywords in the title
if (blog.CheckTitles)
{
var includeItem = false;
foreach (var approvedCategory in approvedCategories)
{
if (title.ToLowerInvariant().Contains(approvedCategory.ToLowerInvariant()))
{
includeItem = true;
}
}
// Blog post seems unrelated to Umbraco, skip it
if (includeItem == false)
{
continue;
}
}
var blogPost = new BlogRssItem
{
Channel = rssChannel,
Title = title,
// some sites store the link in the <guid/> element
Link = link,
PublishedDate = pubDate
};
posts.Add(blogPost);
}
}
catch (Exception ex)
{
context.SetTextColor(ConsoleTextColor.Red);
context.WriteLine("Unable to get blog posts for: " + blog.RssUrl, ex);
context.ResetTextColor();
}
}
return(posts.OrderByDescending(x => x.PublishedDate).ToArray());
}
public BlogRssItem[] GetBlogPosts()
{
var posts = new List <BlogRssItem>();
foreach (var blog in GetBlogs())
{
try
{
string raw;
// Need to make sure we try TLS 1.2 first else the connection will just be closed in us
// No other protocols allowed SSL * and TLS 1.0 are considered insecure
ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls12 | SecurityProtocolType.Tls11;
// Initialize a new web client (with the encoding specified for the blog)
using (var wc = new WebClient())
{
wc.Encoding = blog.Encoding;
// Download the raw XML
raw = wc.DownloadString(blog.RssUrl);
raw = RemoveLeadingCharacters(raw).Replace("a10:updated", "pubDate");
}
// Parse the XML into a new instance of XElement
var feed = XElement.Parse(raw);
var channel = feed.Element("channel");
var channelTitle = channel.GetElementValue("title");
var channelLink = channel.GetElementValue("link");
var channelDescription = channel.GetElementValue("description");
var channelLastBuildDate = channel.GetElementValue("lastBuildDate");
var channelLangauge = channel.GetElementValue("language");
var rssChannel = new BlogRssChannel
{
Id = blog.Id,
Title = channelTitle,
Link = channelLink
};
foreach (var item in channel.GetElements("item"))
{
var title = item.GetElementValue("title");
var link = (string.IsNullOrEmpty(item.GetElementValue("link"))
? item.GetElementValue("guid")
: item.GetElementValue("link"))
.Trim();
var pubDate = GetPublishDate(item);
if (pubDate == default(DateTimeOffset))
{
continue;
}
var approvedCategories = new List <string> {
"umbraco", "codegarden", "articulate", "examine"
};
var categories = item.GetElements("category");
if (categories.Any())
{
var includeItem = title.ToLowerInvariant().ContainsAny(approvedCategories);
foreach (var category in categories)
{
// no need to check more if the item is already approved
if (includeItem)
{
continue;
}
foreach (var approvedCategory in approvedCategories)
{
if (category.Value.ToLowerInvariant().Contains(approvedCategory.ToLowerInvariant()))
{
includeItem = true;
}
}
}
if (includeItem == false)
{
var allCategories = string.Join(",", categories.Select(i => i.Value));
LogHelper.Info <BlogPostsService>(string.Format("Not including post titled {0} because it was not in an approved category. The categories it was found in: {1}. [{2}]", title, allCategories, link));
continue;
}
}
var blogPost = new BlogRssItem
{
Channel = rssChannel,
Title = title,
// some sites store the link in the <guid/> element
Link = link,
PublishedDate = pubDate
};
posts.Add(blogPost);
}
}
catch (Exception ex)
{
LogHelper.Error <BlogPostsService>("Unable to get blog posts for: " + blog.RssUrl, ex);
}
}
return(posts.OrderByDescending(x => x.PublishedDate).ToArray());
}
