// https://wicg.github.io/entries-api/#resolve-a-relative-path
static String resolveRelativeVirtualPath(StringView baseVirtualPath, StringView relativeVirtualPath)
{
ASSERT(baseVirtualPath[0] == '/');
if (!relativeVirtualPath.isEmpty() && relativeVirtualPath[0] == '/')
return relativeVirtualPath.length() == 1 ? relativeVirtualPath.toString() : resolveRelativeVirtualPath("/", relativeVirtualPath.substring(1));
Vector<StringView> virtualPathSegments;
for (auto segment : baseVirtualPath.split('/'))
virtualPathSegments.append(segment);
for (auto segment : relativeVirtualPath.split('/')) {
ASSERT(!segment.isEmpty());
if (segment == ".")
continue;
if (segment == "..") {
if (!virtualPathSegments.isEmpty())
virtualPathSegments.removeLast();
continue;
}
virtualPathSegments.append(segment);
}
if (virtualPathSegments.isEmpty())
return "/"_s;
StringBuilder builder;
for (auto& segment : virtualPathSegments) {
builder.append('/');
builder.append(segment);
}
return builder.toString();
}
size_t lastHyphenLocation(const StringView& text,
size_t beforeIndex) const override {
CFIndex result = CFStringGetHyphenationLocationBeforeIndex(
text.toString().impl()->createCFString().get(), beforeIndex,
CFRangeMake(0, text.length()), 0, m_localeCF.get(), 0);
return result == kCFNotFound ? 0 : result;
}
static void setWindowFeature(WindowFeatures& features, StringView key, StringView value)
{
// Listing a key with no value is shorthand for key=yes
int numericValue;
if (value.isEmpty() || equalLettersIgnoringASCIICase(value, "yes"))
numericValue = 1;
else
numericValue = value.toInt();
// We treat key of "resizable" here as an additional feature rather than setting resizeable to true.
// This is consistent with Firefox, but could also be handled at another level.
if (equalLettersIgnoringASCIICase(key, "left") || equalLettersIgnoringASCIICase(key, "screenx"))
features.x = numericValue;
else if (equalLettersIgnoringASCIICase(key, "top") || equalLettersIgnoringASCIICase(key, "screeny"))
features.y = numericValue;
else if (equalLettersIgnoringASCIICase(key, "width") || equalLettersIgnoringASCIICase(key, "innerwidth"))
features.width = numericValue;
else if (equalLettersIgnoringASCIICase(key, "height") || equalLettersIgnoringASCIICase(key, "innerheight"))
features.height = numericValue;
else if (equalLettersIgnoringASCIICase(key, "menubar"))
features.menuBarVisible = numericValue;
else if (equalLettersIgnoringASCIICase(key, "toolbar"))
features.toolBarVisible = numericValue;
else if (equalLettersIgnoringASCIICase(key, "location"))
features.locationBarVisible = numericValue;
else if (equalLettersIgnoringASCIICase(key, "status"))
features.statusBarVisible = numericValue;
else if (equalLettersIgnoringASCIICase(key, "fullscreen"))
features.fullscreen = numericValue;
else if (equalLettersIgnoringASCIICase(key, "scrollbars"))
features.scrollbarsVisible = numericValue;
else if (numericValue == 1)
features.additionalFeatures.append(key.toString());
}
size_t MockHyphenation::lastHyphenLocation(const StringView& text,
size_t beforeIndex) const {
String str = text.toString();
if (str.endsWith("phenation", TextCaseASCIIInsensitive)) {
if (beforeIndex - (str.length() - 9) > 4)
return 4 + (str.length() - 9);
if (str.endsWith("hyphenation", TextCaseASCIIInsensitive) &&
beforeIndex - (str.length() - 11) > 2) {
return 2 + (str.length() - 11);
}
}
return 0;
}
bool ScriptCustomElementDefinitionBuilder::callableForName(
const StringView& name,
v8::Local<v8::Function>& callback) const {
v8::Local<v8::Value> value;
if (!valueForName(m_prototype, name, value))
return false;
// "undefined" means "omitted", so return true.
if (value->IsUndefined())
return true;
if (!value->IsFunction()) {
m_exceptionState.throwTypeError(String::format(
"\"%s\" is not a callable object", name.toString().ascii().data()));
return false;
}
callback = value.As<v8::Function>();
return true;
}
bool MultipartHandle::parseHeadersIfPossible()
{
size_t contentLength = m_buffer.size();
if (!contentLength)
return false;
const char* content = m_buffer.data();
// Check if we have the header closing strings.
if (!strnstr(content, "\r\n\r\n", contentLength)) {
// Some servers closes the headers with only \n-s.
if (!strnstr(content, "\n\n", contentLength)) {
// Don't have the header closing string. Wait for more data.
return false;
}
}
// Parse the HTTP headers.
String value;
StringView name;
char* p = const_cast<char*>(content);
const char* end = content + contentLength;
size_t totalConsumedLength = 0;
for (; p < end; ++p) {
String failureReason;
size_t consumedLength = parseHTTPHeader(p, end - p, failureReason, name, value, false);
if (!consumedLength)
break; // No more header to parse.
p += consumedLength;
totalConsumedLength += consumedLength;
// The name should not be empty, but the value could be empty.
if (name.isEmpty())
break;
m_headers.add(name.toString(), value);
}
m_buffer.remove(0, totalConsumedLength + 1);
return true;
}
const char* WebSocketHandshake::readHTTPHeaders(const char* start, const char* end)
{
StringView name;
String value;
bool sawSecWebSocketExtensionsHeaderField = false;
bool sawSecWebSocketAcceptHeaderField = false;
bool sawSecWebSocketProtocolHeaderField = false;
const char* p = start;
for (; p < end; p++) {
size_t consumedLength = parseHTTPHeader(p, end - p, m_failureReason, name, value);
if (!consumedLength)
return nullptr;
p += consumedLength;
// Stop once we consumed an empty line.
if (name.isEmpty())
break;
HTTPHeaderName headerName;
if (!findHTTPHeaderName(name, headerName)) {
// Evidence in the wild shows that services make use of custom headers in the handshake
m_serverHandshakeResponse.addHTTPHeaderField(name.toString(), value);
continue;
}
// https://tools.ietf.org/html/rfc7230#section-3.2.4
// "Newly defined header fields SHOULD limit their field values to US-ASCII octets."
if ((headerName == HTTPHeaderName::SecWebSocketExtensions
|| headerName == HTTPHeaderName::SecWebSocketAccept
|| headerName == HTTPHeaderName::SecWebSocketProtocol)
&& !value.containsOnlyASCII()) {
m_failureReason = makeString(name, " header value should only contain ASCII characters");
return nullptr;
}
if (headerName == HTTPHeaderName::SecWebSocketExtensions) {
if (sawSecWebSocketExtensionsHeaderField) {
m_failureReason = ASCIILiteral("The Sec-WebSocket-Extensions header must not appear more than once in an HTTP response");
return nullptr;
}
if (!m_extensionDispatcher.processHeaderValue(value)) {
m_failureReason = m_extensionDispatcher.failureReason();
return nullptr;
}
sawSecWebSocketExtensionsHeaderField = true;
} else {
if (headerName == HTTPHeaderName::SecWebSocketAccept) {
if (sawSecWebSocketAcceptHeaderField) {
m_failureReason = ASCIILiteral("The Sec-WebSocket-Accept header must not appear more than once in an HTTP response");
return nullptr;
}
sawSecWebSocketAcceptHeaderField = true;
} else if (headerName == HTTPHeaderName::SecWebSocketProtocol) {
if (sawSecWebSocketProtocolHeaderField) {
m_failureReason = ASCIILiteral("The Sec-WebSocket-Protocol header must not appear more than once in an HTTP response");
return nullptr;
}
sawSecWebSocketProtocolHeaderField = true;
}
m_serverHandshakeResponse.addHTTPHeaderField(headerName, value);
}
}
return p;
}