/// <summary>
/// Used by <see cref="SFLink"/> constructor, includes logic to ensure the url is
/// a valid URI, gets a corresponding uri and extension, while fixing things such as
/// links without a protocol (defaults to http).
/// </summary>
public static bool FixOrValidateInputUrl(string inUrl, out string url, out Uri uri, out string ext)
{
url = inUrl.NullIfEmptyTrimmed();
uri = null;
ext = null;
if (url.IsNulle())
{
return(false);
}
if (!ExtraTextFuncs.IsWebLink(url, checkForWww: true))
{
return(false);
}
if (url[0] == 'w') // above check determines if [0] == 'w', then this == 'www.'
{
url = "http://" + url;
}
if (url.IndexOf(' ') > 0) // is pry a quicker check than always running the replace...
{
url = url.Replace(" ", "%20"); // some links have spaces in them that invalidate the IsWellFormedOriginalString check below
}
try {
// note: this WILL throw an Ex for some things.
// however, it also accepts ALL kinds of JUNK that
// obviously is not a valid Uri, I don't get it.
// So we're still doing the IsWellFormedOriginalString
// check, but that is largely useless in some of my tests
uri = new Uri(url);
if (uri == null || !uri.IsWellFormedOriginalString())
{
return(false);
}
url = uri.AbsoluteUri; // do NOT do .ToString(), that is the 'canonical' form which ruins escapes, like replacing ' ' (space) for %20! dumb
}
catch {
return(false);
}
// do NOT place this within the try/catch. there should be NO errors in this call
// so if it does throw we need to know the bug
UriPathInfo pathInfo = new UriPathInfo(uri.AbsolutePath);
ext = pathInfo.Extension;
//Ext = UriPathInfo.GetExtFromUrl(_uri.AbsolutePath);
// BasicMimeTypesX.GetExtFromUrl(_uri.AbsolutePath); //AbsolutePath removes any query string ending
return(true);
}
public void AddMeta(XElement item)
{
var f = ParentSettings?.ParentFeed;
if (item == null || f == null)
{
return;
}
// rawvoice
// http://www.rawvoice.com/services/tools-and-resources/rawvoice-rss-2-0-module-xmlns-namespace-rss2/
/* metamark, if present as a sub-item of <item> and <item> includes an <enclosure> item,
* specifies additional meta information that may complement the enclosure and/or may be used
* during the playback of the enclosure’s media. It has four attributes:
* type, link, position and duration and may contain a value. */
if (f.HasRawVoice)
{
foreach (var metaX in item.Elements(SimpleFeed.xname_rawvoice_metamark))
{
var meta = new SFFeedMeta()
{
Source = "rawvoice.meta",
Type = metaX.Attribute("type")?.Value?.Trim(), //.ValueN().TrimN();
Url = metaX.Attribute("link")?.Value?.Trim(), //.ValueN().TrimN();
Value = metaX?.Value?.Trim()
};
if (meta.Value.NotNulle() || meta.Url.NotNulle())
{
Metas.Add(meta);
//BasicMimeType typ = isLinkRVMeta.V(meta.Type, BasicMimeType.none);
string url = ExtraTextFuncs.IsWebLink(meta.Url)
? meta.Url
: (ExtraTextFuncs.IsWebLink(meta.Value) ? meta.Value : null);
if (url != null)
{
var lnk = new SFLink(url, meta.Type);
if (lnk != null && lnk.IsValid)
{
AddLink(lnk);
}
}
}
}
}
}