public string RestorePreserved(string html)
{
StringBuilder sb = new StringBuilder();
HtmlExtractor ex = new HtmlExtractor(html);
int pos = 0;
while (ex.Seek("<span class='" + PRESERVE_CLASS + "'>").Success)
{
sb.Append(html, pos, ex.Element.Offset - pos);
pos = ex.Element.Offset;
BeginTag bt = (BeginTag)ex.Element;
string elementId = bt.GetAttributeValue("id");
Match m = Regex.Match(elementId ?? "", @"^preserve([a-zA-Z0-9]+)$");
if (m.Success)
{
string preserveId = m.Groups[1].Value;
string preservedValue;
if (preserved.TryGetValue(preserveId, out preservedValue))
{
sb.Append(preservedValue);
ex.CollectTextUntil("span");
if (ex.Element == null)
pos = html.Length;
else
pos = ex.Parser.Position;
}
}
}
sb.Append(html, pos, html.Length - pos);
return sb.ToString();
}
private void ParsePostContent(XmlNode xmlNode, BlogPost blogPost)
{
// get raw content (decode base64 if necessary)
string content;
XmlNode base64Node = xmlNode.SelectSingleNode("base64");
if (base64Node != null)
{
byte[] contentBytes = Convert.FromBase64String(base64Node.InnerText);
content = _utf8EncodingNoBOM.GetString(contentBytes);
}
else // no base64 encoding, just read text
{
content = xmlNode.InnerText;
}
// parse out the title and contents of the post
HtmlExtractor ex = new HtmlExtractor(content);
if (ex.Seek("<title>").Success)
{
SetPostTitleFromXmlValue(blogPost, ex.CollectTextUntil("title"));
content = content.Substring(ex.Parser.Position).TrimStart('\r', '\n');
}
if (content.Trim() != string.Empty)
{
HtmlExtractor ex2 = new HtmlExtractor(content);
if (Options.SupportsExtendedEntries && ex2.Seek("<lj-cut>").Success)
blogPost.SetContents(content.Substring(0, ex2.Element.Offset), content.Substring(ex2.Element.Offset + ex2.Element.Length));
else
blogPost.Contents = content;
}
}
private bool AttemptGenericAtomLinkDetection(string url, string html, bool preferredOnly)
{
const string GENERIC_ATOM_PROVIDER_ID = "D48F1B5A-06E6-4f0f-BD76-74F34F520792";
if (html == null)
return false;
HtmlExtractor ex = new HtmlExtractor(html);
if (ex
.SeekWithin("<head>", "<body>")
.SeekWithin("<link href rel='service' type='application/atomsvc+xml'>", "</head>")
.Success)
{
IBlogProvider atomProvider = BlogProviderManager.FindProvider(GENERIC_ATOM_PROVIDER_ID);
BeginTag bt = ex.Element as BeginTag;
if (preferredOnly)
{
string classes = bt.GetAttributeValue("class");
if (classes == null)
return false;
if (!Regex.IsMatch(classes, @"\bpreferred\b"))
return false;
}
string linkUrl = bt.GetAttributeValue("href");
Debug.WriteLine("Atom service link detected in the blog homepage");
_providerId = atomProvider.Id;
_serviceName = atomProvider.Name;
_clientType = atomProvider.ClientType;
_blogName = string.Empty;
_postApiUrl = linkUrl;
IBlogClient client = BlogClientManager.CreateClient(atomProvider.ClientType, _postApiUrl, _credentials);
client.VerifyCredentials();
_usersBlogs = client.GetUsersBlogs();
if (_usersBlogs.Length == 1)
{
_hostBlogId = _usersBlogs[0].Id;
_blogName = _usersBlogs[0].Name;
/*
if (_usersBlogs[0].HomepageUrl != null && _usersBlogs[0].HomepageUrl.Length > 0)
_homepageUrl = _usersBlogs[0].HomepageUrl;
*/
}
// attempt to read the blog name from the homepage title
if (_blogName == null || _blogName.Length == 0)
{
HtmlExtractor ex2 = new HtmlExtractor(html);
if (ex2.Seek("<title>").Success)
{
_blogName = ex2.CollectTextUntil("title");
}
}
return true;
}
return false;
}
