RGBCube/serenity
1
Fork 0
mirror of https://github.com/RGBCube/serenity synced 2025-05-20 14:55:08 +00:00
Code Issues Activity Actions

LibWeb: Let Resource figure out its own encoding and MIME type

Browse source 
Also, if the request URL is a data: URL, use the MIME type from the URL
itself if available. This makes it possible to load arbitrary MIME type
data: URLs in the browser :^)
This commit is contained in:
Andreas Kling 2020-06-06 14:02:43 +02:00
parent efe9d36eba
commit f88146c7c9
3 changed files with 53 additions and 46 deletions
Download patch file Download diff file Expand all files Collapse all files

48
Libraries/LibWeb/Loader/FrameLoader.cpp
View file

@ -118,37 +118,6 @@ static RefPtr<Document> create_gemini_document(const ByteBuffer& data, const URL
return parse_html_document(markdown_document->render_to_html(), url);
}
String encoding_from_content_type(const String& content_type)
{
auto offset = content_type.index_of("charset=");
if (offset.has_value())
return content_type.substring(offset.value() + 8, content_type.length() - offset.value() - 8).to_lowercase();
return "utf-8";
}
String mime_type_from_content_type(const String& content_type)
{
auto offset = content_type.index_of(";");
if (offset.has_value())
return content_type.substring(0, offset.value()).to_lowercase();
return content_type;
}
static String guess_mime_type_based_on_filename(const URL& url)
{
if (url.path().ends_with(".png"))
return "image/png";
if (url.path().ends_with(".gif"))
return "image/gif";
if (url.path().ends_with(".md"))
return "text/markdown";
if (url.path().ends_with(".html") || url.path().ends_with(".htm"))
return "text/html";
return "text/plain";
}
RefPtr<Document> FrameLoader::create_document_from_mime_type(const ByteBuffer& data, const URL& url, const String& mime_type, const String& encoding)
{
if (mime_type.starts_with("image/"))
@ -250,21 +219,8 @@ void FrameLoader::resource_did_load()
return;
}
String encoding = "utf-8";
String mime_type;
auto content_type = resource()->response_headers().get("Content-Type");
if (content_type.has_value()) {
dbg() << "Content-Type header: _" << content_type.value() << "_";
encoding = encoding_from_content_type(content_type.value());
mime_type = mime_type_from_content_type(content_type.value());
} else {
dbg() << "No Content-Type header to go on! Guessing based on filename...";
mime_type = guess_mime_type_based_on_filename(url);
}
dbg() << "I believe this content has MIME type '" << mime_type << "', encoding '" << encoding << "'";
auto document = create_document_from_mime_type(resource()->encoded_data(), url, mime_type, encoding);
dbg() << "I believe this content has MIME type '" << resource()->mime_type() << "', encoding '" << resource()->encoding() << "'";
auto document = create_document_from_mime_type(resource()->encoded_data(), url, resource()->mime_type(), resource()->encoding());
ASSERT(document);
frame().set_document(document);