Revert "Add Basilisk"

This reverts commit e72ef92b5bdc43cd2584198e2e54e951b70299e8.

1 files changed, 0 insertions, 370 deletions

diff --git a/application/basilisk/components/feeds/nsFeedSniffer.cpp b/application/basilisk/components/feeds/nsFeedSniffer.cpp
deleted file mode 100644
index f2d0da776..000000000
--- a/application/basilisk/components/feeds/nsFeedSniffer.cpp
+++ /dev/null
@@ -1,370 +0,0 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this
- * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
-
-#include "nsFeedSniffer.h"
-
-
-#include "nsNetCID.h"
-#include "nsXPCOM.h"
-#include "nsCOMPtr.h"
-#include "nsStringStream.h"
-
-#include "nsBrowserCompsCID.h"
-
-#include "nsICategoryManager.h"
-#include "nsIServiceManager.h"
-#include "nsComponentManagerUtils.h"
-#include "nsServiceManagerUtils.h"
-
-#include "nsIStreamConverterService.h"
-#include "nsIStreamConverter.h"
-
-#include "nsIStreamListener.h"
-
-#include "nsIHttpChannel.h"
-#include "nsIMIMEHeaderParam.h"
-
-#include "nsMimeTypes.h"
-#include "nsIURI.h"
-#include <algorithm>
-
-#define TYPE_ATOM "application/atom+xml"
-#define TYPE_RSS "application/rss+xml"
-#define TYPE_MAYBE_FEED "application/vnd.mozilla.maybe.feed"
-
-#define NS_RDF "http://www.w3.org/1999/02/22-rdf-syntax-ns#"
-#define NS_RSS "http://purl.org/rss/1.0/"
-
-#define MAX_BYTES 512u
-
-NS_IMPL_ISUPPORTS(nsFeedSniffer,
-                  nsIContentSniffer,
-                  nsIStreamListener,
-                  nsIRequestObserver)
-
-nsresult
-nsFeedSniffer::ConvertEncodedData(nsIRequest* request,
-                                  const uint8_t* data,
-                                  uint32_t length)
-{
-  nsresult rv = NS_OK;
-
- mDecodedData = "";
- nsCOMPtr<nsIHttpChannel> httpChannel(do_QueryInterface(request));
-  if (!httpChannel)
-    return NS_ERROR_NO_INTERFACE;
-
-  nsAutoCString contentEncoding;
-  httpChannel->GetResponseHeader(NS_LITERAL_CSTRING("Content-Encoding"), 
-                                 contentEncoding);
-  if (!contentEncoding.IsEmpty()) {
-    nsCOMPtr<nsIStreamConverterService> converterService(do_GetService(NS_STREAMCONVERTERSERVICE_CONTRACTID));
-    if (converterService) {
-      ToLowerCase(contentEncoding);
-
-      nsCOMPtr<nsIStreamListener> converter;
-      rv = converterService->AsyncConvertData(contentEncoding.get(), 
-                                              "uncompressed", this, nullptr, 
-                                              getter_AddRefs(converter));
-      NS_ENSURE_SUCCESS(rv, rv);
-
-      converter->OnStartRequest(request, nullptr);
-
-      nsCOMPtr<nsIStringInputStream> rawStream =
-        do_CreateInstance(NS_STRINGINPUTSTREAM_CONTRACTID);
-      if (!rawStream)
-        return NS_ERROR_FAILURE;
-
-      rv = rawStream->SetData((const char*)data, length);
-      NS_ENSURE_SUCCESS(rv, rv);
-
-      rv = converter->OnDataAvailable(request, nullptr, rawStream, 0, length);
-      NS_ENSURE_SUCCESS(rv, rv);
-
-      converter->OnStopRequest(request, nullptr, NS_OK);
-    }
-  }
-  return rv;
-}
-
-template<int N>
-static bool
-StringBeginsWithLowercaseLiteral(nsAString& aString,
-                                 const char (&aSubstring)[N])
-{
-  return StringHead(aString, N).LowerCaseEqualsLiteral(aSubstring);
-}
-
-bool
-HasAttachmentDisposition(nsIHttpChannel* httpChannel)
-{
-  if (!httpChannel)
-    return false;
-
-  uint32_t disp;
-  nsresult rv = httpChannel->GetContentDisposition(&disp);
-
-  if (NS_SUCCEEDED(rv) && disp == nsIChannel::DISPOSITION_ATTACHMENT)
-    return true;
-
-  return false;
-}
-
-/**
- * @return the first occurrence of a character within a string buffer,
- *         or nullptr if not found
- */
-static const char*
-FindChar(char c, const char *begin, const char *end)
-{
-  for (; begin < end; ++begin) {
-    if (*begin == c)
-      return begin;
-  }
-  return nullptr;
-}
-
-/**
- *
- * Determine if a substring is the "documentElement" in the document.
- *
- * All of our sniffed substrings: <rss, <feed, <rdf:RDF must be the "document"
- * element within the XML DOM, i.e. the root container element. Otherwise,
- * it's possible that someone embedded one of these tags inside a document of
- * another type, e.g. a HTML document, and we don't want to show the preview
- * page if the document isn't actually a feed.
- *
- * @param   start
- *          The beginning of the data being sniffed
- * @param   end
- *          The end of the data being sniffed, right before the substring that
- *          was found.
- * @returns true if the found substring is the documentElement, false 
- *          otherwise.
- */
-static bool
-IsDocumentElement(const char *start, const char* end)
-{
-  // For every tag in the buffer, check to see if it's a PI, Doctype or 
-  // comment, our desired substring or something invalid.
-  while ( (start = FindChar('<', start, end)) ) {
-    ++start;
-    if (start >= end)
-      return false;
-
-    // Check to see if the character following the '<' is either '?' or '!'
-    // (processing instruction or doctype or comment)... these are valid nodes
-    // to have in the prologue. 
-    if (*start != '?' && *start != '!')
-      return false;
-    
-    // Now advance the iterator until the '>' (We do this because we don't want
-    // to sniff indicator substrings that are embedded within other nodes, e.g.
-    // comments: <!-- <rdf:RDF .. > -->
-    start = FindChar('>', start, end);
-    if (!start)
-      return false;
-
-    ++start;
-  }
-  return true;
-}
-
-/**
- * Determines whether or not a string exists as the root element in an XML data
- * string buffer.
- * @param   dataString
- *          The data being sniffed
- * @param   substring
- *          The substring being tested for existence and root-ness.
- * @returns true if the substring exists and is the documentElement, false
- *          otherwise.
- */
-static bool
-ContainsTopLevelSubstring(nsACString& dataString, const char *substring) 
-{
-  nsACString::const_iterator start, end;
-  dataString.BeginReading(start);
-  dataString.EndReading(end);
-
-  if (!FindInReadable(nsCString(substring), start, end)){
-    return false;
-  }
-
-  auto offset = start.get() - dataString.Data();
-
-  const char *begin = dataString.BeginReading();
-
-  // Only do the validation when we find the substring.
-  return IsDocumentElement(begin, begin + offset);
-}
-
-NS_IMETHODIMP
-nsFeedSniffer::GetMIMETypeFromContent(nsIRequest* request, 
-                                      const uint8_t* data, 
-                                      uint32_t length, 
-                                      nsACString& sniffedType)
-{
-  nsCOMPtr<nsIHttpChannel> channel(do_QueryInterface(request));
-  if (!channel)
-    return NS_ERROR_NO_INTERFACE;
-
-  // Check that this is a GET request, since you can't subscribe to a POST...
-  nsAutoCString method;
-  channel->GetRequestMethod(method);
-  if (!method.EqualsLiteral("GET")) {
-    sniffedType.Truncate();
-    return NS_OK;
-  }
-
-  // We need to find out if this is a load of a view-source document. In this
-  // case we do not want to override the content type, since the source display
-  // does not need to be converted from feed format to XUL. More importantly, 
-  // we don't want to change the content type from something 
-  // nsContentDLF::CreateInstance knows about (e.g. application/xml, text/html 
-  // etc) to something that only the application fe knows about (maybe.feed) 
-  // thus deactivating syntax highlighting.
-  nsCOMPtr<nsIURI> originalURI;
-  channel->GetOriginalURI(getter_AddRefs(originalURI));
-
-  nsAutoCString scheme;
-  originalURI->GetScheme(scheme);
-  if (scheme.EqualsLiteral("view-source")) {
-    sniffedType.Truncate();
-    return NS_OK;
-  }
-
-  // Check the Content-Type to see if it is set correctly. If it is set to 
-  // something specific that we think is a reliable indication of a feed, don't
-  // bother sniffing since we assume the site maintainer knows what they're 
-  // doing. 
-  nsAutoCString contentType;
-  channel->GetContentType(contentType);
-  bool noSniff = contentType.EqualsLiteral(TYPE_RSS) ||
-                   contentType.EqualsLiteral(TYPE_ATOM);
-
-  // Check to see if this was a feed request from the location bar or from
-  // the feed: protocol. This is also a reliable indication.
-  // The value of the header doesn't matter.  
-  if (!noSniff) {
-    nsAutoCString sniffHeader;
-    nsresult foundHeader =
-      channel->GetRequestHeader(NS_LITERAL_CSTRING("X-Moz-Is-Feed"),
-                                sniffHeader);
-    noSniff = NS_SUCCEEDED(foundHeader);
-  }
-
-  if (noSniff) {
-    // check for an attachment after we have a likely feed.
-    if(HasAttachmentDisposition(channel)) {
-      sniffedType.Truncate();
-      return NS_OK;
-    }
-
-    // set the feed header as a response header, since we have good metadata
-    // telling us that the feed is supposed to be RSS or Atom
-    channel->SetResponseHeader(NS_LITERAL_CSTRING("X-Moz-Is-Feed"),
-                               NS_LITERAL_CSTRING("1"), false);
-    sniffedType.AssignLiteral(TYPE_MAYBE_FEED);
-    return NS_OK;
-  }
-
-  // Don't sniff arbitrary types.  Limit sniffing to situations that
-  // we think can reasonably arise.
-  if (!contentType.EqualsLiteral(TEXT_HTML) &&
-      !contentType.EqualsLiteral(APPLICATION_OCTET_STREAM) &&
-      // Same criterion as XMLHttpRequest.  Should we be checking for "+xml"
-      // and check for text/xml and application/xml by hand instead?
-      contentType.Find("xml") == -1) {
-    sniffedType.Truncate();
-    return NS_OK;
-  }
-
-  // Now we need to potentially decompress data served with 
-  // Content-Encoding: gzip
-  nsresult rv = ConvertEncodedData(request, data, length);
-  if (NS_FAILED(rv))
-    return rv;
-
-  // We cap the number of bytes to scan at MAX_BYTES to prevent picking up 
-  // false positives by accidentally reading document content, e.g. a "how to
-  // make a feed" page.
-  const char* testData;
-  if (mDecodedData.IsEmpty()) {
-    testData = (const char*)data;
-    length = std::min(length, MAX_BYTES);
-  } else {
-    testData = mDecodedData.get();
-    length = std::min(mDecodedData.Length(), MAX_BYTES);
-  }
-
-  // The strategy here is based on that described in:
-  // http://blogs.msdn.com/rssteam/articles/PublishersGuide.aspx
-  // for interoperarbility purposes.
-
-  // Thus begins the actual sniffing.
-  nsDependentCSubstring dataString((const char*)testData, length);
-
-  bool isFeed = false;
-
-  // RSS 0.91/0.92/2.0
-  isFeed = ContainsTopLevelSubstring(dataString, "<rss");
-
-  // Atom 1.0
-  if (!isFeed)
-    isFeed = ContainsTopLevelSubstring(dataString, "<feed");
-
-  // RSS 1.0
-  if (!isFeed) {
-    bool foundNS_RDF = FindInReadable(NS_LITERAL_CSTRING(NS_RDF), dataString);
-    bool foundNS_RSS = FindInReadable(NS_LITERAL_CSTRING(NS_RSS), dataString);
-    isFeed = ContainsTopLevelSubstring(dataString, "<rdf:RDF") &&
-      foundNS_RDF && foundNS_RSS;
-  }
-
-  // If we sniffed a feed, coerce our internal type
-  if (isFeed && !HasAttachmentDisposition(channel))
-    sniffedType.AssignLiteral(TYPE_MAYBE_FEED);
-  else
-    sniffedType.Truncate();
-  return NS_OK;
-}
-
-NS_IMETHODIMP
-nsFeedSniffer::OnStartRequest(nsIRequest* request, nsISupports* context)
-{
-  return NS_OK;
-}
-
-nsresult
-nsFeedSniffer::AppendSegmentToString(nsIInputStream* inputStream,
-                                     void* closure,
-                                     const char* rawSegment,
-                                     uint32_t toOffset,
-                                     uint32_t count,
-                                     uint32_t* writeCount)
-{
-  nsCString* decodedData = static_cast<nsCString*>(closure);
-  decodedData->Append(rawSegment, count);
-  *writeCount = count;
-  return NS_OK;
-}
-
-NS_IMETHODIMP
-nsFeedSniffer::OnDataAvailable(nsIRequest* request, nsISupports* context,
-                               nsIInputStream* stream, uint64_t offset, 
-                               uint32_t count)
-{
-  uint32_t read;
-  return stream->ReadSegments(AppendSegmentToString, &mDecodedData, count, 
-                              &read);
-}
-
-NS_IMETHODIMP
-nsFeedSniffer::OnStopRequest(nsIRequest* request, nsISupports* context, 
-                             nsresult status)
-{
-  return NS_OK; 
-}