public WarcItem ToWarcItem(string folder, ref byte[] fileNameBytes, ref string fileNameString)
{
string fn;
if (fileNameBytes != null && fileNameBytes.Length == this.FileName.Length && this.FileName.Bytes.BlockEquals((ReadOnlySpan <byte>)fileNameBytes.Slice()))
{
fn = fileNameString;
}
else
{
fileNameBytes = new byte[this.FileName.Length];
this.FileName.Bytes.CopyTo(fileNameBytes);
fileNameString = Path.Combine(folder, this.FileName.ToString());
fn = fileNameString;
}
return(new WarcItem()
{
Url = this.OriginalUrl.ToString(),
CompressedOffset = Utf8Utils.ParseInt64(this.CompressedArcFileOffset),
CompressedLength = Utf8Utils.ParseInt64(this.CompressedRecordSize),
Date = ParseDate(this.Date),
PayloadLength = this.PayloadLength.Length != 0 ? Utf8Utils.ParseInt64(this.PayloadLength) : -1,
WarcFile = fn,
LastModified = this.LastModified.Length > 1 ? ParseDate(this.LastModified) : (DateTime?)null,
ContentType = this.MimeTypeOfOriginalDocument.ToStringCached(),
ResponseCode = this.ResponseCode.Length != 0 ? (HttpStatusCode)Utf8Utils.ParseInt32(this.ResponseCode) : default(HttpStatusCode),
});
}
internal static DateTime ParseHttpDate(Utf8String str)
{
Utf8Utils.ReadTo(ref str, (byte)' ');
var day = Utf8Utils.ParseInt32(Utf8Utils.ReadTo(ref str, (byte)' '));
var month = ParseMonth(Utf8Utils.ReadTo(ref str, (byte)' '));
var year = Utf8Utils.ParseInt32(Utf8Utils.ReadTo(ref str, (byte)' '));
//str.Split((byte)' ', StringSplitOptions.None, ref arr);
return(new DateTime(
year,
month,
day,
Utf8Utils.ParseInt32(Utf8Utils.ReadTo(ref str, (byte)':')),
Utf8Utils.ParseInt32(Utf8Utils.ReadTo(ref str, (byte)':')),
Utf8Utils.ParseInt32(Utf8Utils.ReadTo(ref str, (byte)' ')),
DateTimeKind.Utc
));
}
public WarcFs(string cdx)
{
this.cdx = cdx;
byte[] fileNameBytes = null;
string fileNameString = null;
var folder = Path.GetDirectoryName(cdx);
this.Root = CreateTree <WarcItem>(WarcCdxItemRaw.Read(cdx).Select(x =>
{
var response = x.ResponseCode;
if (response.Length != 0)
{
var responseCode = Utf8Utils.ParseInt32(response);
if (responseCode < 200 || responseCode >= 300)
{
return(null);
}
}
return(x.ToWarcItem(folder, ref fileNameBytes, ref fileNameString));
}).Where(x => x != null), x =>
{
var url = new Uri(x.Url);
var keep = -1;
if (url.AbsolutePath.StartsWith("/w/images/"))
{
keep = 2;
}
else if (url.AbsolutePath.StartsWith("/wiki/"))
{
keep = 1;
}
else if (url.Host.EndsWith(".fbcdn.net"))
{
keep = 0;
}
else if (url.Host.EndsWith(".media.tumblr.com"))
{
keep = 0;
}
else if (url.Host.EndsWith(".bp.blogspot.com"))
{
keep = 0;
}
else if (url.Host.EndsWith(".reddit.com") && url.AbsolutePath.Contains("/comments/"))
{
keep = 3;
}
else if (url.Host.EndsWith(".staticflickr.com"))
{
keep = 0;
}
else if (url.Host.EndsWith(".giphy.com") && url.Host.Contains("media"))
{
keep = 0;
}
var path = WebsiteScraper.GetPathInternal(null, url, x.ContentType, keep);
path = path.Replace('/', '\\');
if (path.Length > 150)
{
var z = path.IndexOf('‽');
if (z != -1)
{
path = path.Substring(0, z) + "‽{" + Math.Abs((long)path.GetHashCode()) + "}" + Path.GetExtension(path);
}
}
if (url.IsHostedOn("facebook.com") && url.AbsolutePath.StartsWith("/pages_reaction_units/"))
{
path = path.TrimEnd(".js");
path += ".html";
}
return(path);
}, null, x =>
{
x.Tag = TagVirtual;
if (x.Info != null)
{
urlToFsNode[x.Info.Url] = x;
}
});
FsNode <WarcItem> rawRoot = null;
rawRoot = new FsNode <WarcItem>()
{
Name = "_raw", GetChildrenDelegate = CreateGetChildrenDelegate(this.Root)
};
Func <List <FsNode <WarcItem> > > CreateGetChildrenDelegate(FsNode <WarcItem> reference)
{
if (reference.Children == null)
{
return(() => null);
}
return(new Func <List <FsNode <WarcItem> > >(() =>
{
return reference.Children.Where(x => x != rawRoot).Select(x =>
{
var k = new FsNode <WarcItem>()
{
Info = x.Info,
Name = x.Name,
GetChildrenDelegate = CreateGetChildrenDelegate(x),
Tag = null,
FullName = x.FullName != null ? "_raw\\" + x.FullName : null
};
return k;
}).ToList();
}));
}
this.Root.Children.Add(rawRoot);
cache = new MemoryStreamCache <FsNode <WarcItem> >((item, dest) =>
{
if (item.Tag == TagVirtual)
{
var ct = item.Info.ContentType;
if (ct != null && ct.Contains("/html") || item.Info.Url.Contains("facebook.com/pages_reaction_units/"))
{
HtmlNode doc;
var pagePath = item.FullName;
if (item.Info.Url.Contains("/pages_reaction_units/"))
{
var jsontext = item.Info.ReadText();
var idx = jsontext.IndexOf('{');
var json = (JObject)HttpUtils.ReadJsonToken(jsontext, idx);
doc = new HtmlDocument("<!doctype html><html><head><meta charset=\"utf-8\"></head><body></body></html>").DocumentNode;
doc.OwnerDocument.SetPageUrl(item.Info.Url.AsUri());
var body = doc.Descendants("body").First();
foreach (var domop in (JArray)json["domops"])
{
var html = ((JArray)domop).First(x => x is JObject)["__html"].Value <string>();
body.AppendChild(html.AsHtmlNode());
}
}
else
{
doc = item.Info.ReadHtml();
}
ProcessHtml(ref doc, pagePath);
var simpleStyle = doc.OwnerDocument.CreateElement("link");
simpleStyle.SetAttributeValue("rel", "stylesheet");
simpleStyle.SetAttributeValue("href", @"file:///C:\Users\Andrea\Desktop\facebook-simple-css.css");
(doc.FindSingle("head") ?? doc).AppendChild(simpleStyle);
using (var sw = new StreamWriter(dest, Encoding.UTF8, 16 * 1024, true))
{
doc.WriteTo(sw);
}
return;
}
}
using (var k = item.Info.OpenStream())
{
k.CopyTo(dest);
}
});
}