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LibWeb: Add Last-Modified header to file and resource requests

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Shannon Booth 2024-04-01 21:28:06 +02:00 • committed by Andreas Kling
commit d200704b6d
Notes: sideshowbarker 2024-07-17 09:48:50 +09:00
1 changed files with 17 additions and 3 deletions
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20
Userland/Libraries/LibWeb/Loader/ResourceLoader.cpp
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@ -7,6 +7,7 @@
#include <AK/Debug.h> #include <AK/Debug.h>
#include <AK/JsonObject.h> #include <AK/JsonObject.h>
#include <LibCore/DateTime.h>
#include <LibCore/Directory.h> #include <LibCore/Directory.h>
#include <LibCore/ElapsedTimer.h> #include <LibCore/ElapsedTimer.h>
#include <LibCore/MimeData.h> #include <LibCore/MimeData.h>
@ -166,7 +167,7 @@ static void store_response_cookies(Page& page, URL::URL const& url, ByteString c
static size_t resource_id = 0; static size_t resource_id = 0;
static HashMap<ByteString, ByteString, CaseInsensitiveStringTraits> response_headers_for_file(StringView path) static HashMap<ByteString, ByteString, CaseInsensitiveStringTraits> response_headers_for_file(StringView path, Optional<time_t> const& modified_time)
{ {
// For file:// and resource:// URLs, we have to guess the MIME type, since there's no HTTP header to tell us what // For file:// and resource:// URLs, we have to guess the MIME type, since there's no HTTP header to tell us what
// it is. We insert a fake Content-Type header here, so that clients can use it to learn the MIME type. // it is. We insert a fake Content-Type header here, so that clients can use it to learn the MIME type.
@ -175,6 +176,11 @@ static HashMap<ByteString, ByteString, CaseInsensitiveStringTraits> response_hea
HashMap<ByteString, ByteString, CaseInsensitiveStringTraits> response_headers; HashMap<ByteString, ByteString, CaseInsensitiveStringTraits> response_headers;
response_headers.set("Content-Type"sv, mime_type); response_headers.set("Content-Type"sv, mime_type);
if (modified_time.has_value()) {
auto const datetime = Core::DateTime::from_timestamp(modified_time.value());
response_headers.set("Last-Modified"sv, datetime.to_byte_string("%a, %d %b %Y %H:%M:%S GMT"sv, Core::DateTime::LocalTime::No));
}
return response_headers; return response_headers;
} }
@ -293,7 +299,7 @@ void ResourceLoader::load(LoadRequest& request, SuccessCallback success_callback
} }
auto data = resource.value()->data(); auto data = resource.value()->data();
auto response_headers = response_headers_for_file(url.serialize_path()); auto response_headers = response_headers_for_file(url.serialize_path(), resource.value()->modified_time());
log_success(request); log_success(request);
success_callback(data, response_headers, {}); success_callback(data, response_headers, {});
@ -333,6 +339,14 @@ void ResourceLoader::load(LoadRequest& request, SuccessCallback success_callback
return; return;
} }
auto st_or_error = Core::System::fstat(fd);
if (st_or_error.is_error()) {
log_failure(request, st_or_error.error());
if (error_callback)
error_callback(ByteString::formatted("{}", st_or_error.error()), 500u, {}, {});
return;
}
// Try to read file normally // Try to read file normally
auto maybe_file = Core::File::adopt_fd(fd, Core::File::OpenMode::Read); auto maybe_file = Core::File::adopt_fd(fd, Core::File::OpenMode::Read);
if (maybe_file.is_error()) { if (maybe_file.is_error()) {
@ -352,7 +366,7 @@ void ResourceLoader::load(LoadRequest& request, SuccessCallback success_callback
} }
auto data = maybe_data.release_value(); auto data = maybe_data.release_value();
auto response_headers = response_headers_for_file(request.url().serialize_path()); auto response_headers = response_headers_for_file(request.url().serialize_path(), st_or_error.value().st_mtime);
log_success(request); log_success(request);
success_callback(data, response_headers, {}); success_callback(data, response_headers, {});