void XMLHttpRequest::loadRequestAsynchronously(ResourceRequest& request)
{
ASSERT(m_async);
// SubresourceLoader::create can return null here, for example if we're no longer attached to a page.
// This is true while running onunload handlers.
// FIXME: We need to be able to send XMLHttpRequests from onunload, <http://bugs.webkit.org/show_bug.cgi?id=10904>.
// FIXME: Maybe create can return null for other reasons too?
// We need to keep content sniffing enabled for local files due to CFNetwork not providing a MIME type
// for local files otherwise, <rdar://problem/5671813>.
bool sendResourceLoadCallbacks = !m_inPreflight;
m_loader = SubresourceLoader::create(m_doc->frame(), this, request, false, sendResourceLoadCallbacks, request.url().isLocalFile());
if (m_loader) {
// Neither this object nor the JavaScript wrapper should be deleted while
// a request is in progress because we need to keep the listeners alive,
// and they are referenced by the JavaScript wrapper.
ref();
KJS::JSLock lock;
gcProtectNullTolerant(ScriptInterpreter::getDOMObject(this));
}
}
void XMLHttpRequest::send(const String& body, ExceptionCode& ec)
{
if (!m_doc)
return;
if (m_state != Loading)
return;
// FIXME: Should this abort instead if we already have a m_job going?
if (m_job)
return;
m_aborted = false;
if (!body.isNull() && m_method != "GET" && m_method != "HEAD" && (m_url.protocol().lower() == "http" || m_url.protocol().lower() == "https")) {
String contentType = getRequestHeader("Content-Type");
String charset;
if (contentType.isEmpty())
setRequestHeader("Content-Type", "application/xml", ec);
else
charset = getCharset(contentType);
if (charset.isEmpty())
charset = "UTF-8";
TextEncoding m_encoding = TextEncoding(charset.deprecatedString().latin1());
if (!m_encoding.isValid()) // FIXME: report an error?
m_encoding = TextEncoding(UTF8Encoding);
m_job = new TransferJob(m_async ? this : 0, m_method, m_url, m_encoding.fromUnicode(body.deprecatedString()));
} else {
// FIXME: HEAD requests just crash; see <rdar://4460899> and the commented out tests in http/tests/xmlhttprequest/methods.html.
if (m_method == "HEAD")
m_method = "GET";
m_job = new TransferJob(m_async ? this : 0, m_method, m_url);
}
if (m_requestHeaders.length())
m_job->addMetaData("customHTTPHeader", m_requestHeaders);
if (!m_async) {
Vector<char> data;
KURL finalURL;
DeprecatedString headers;
{
// avoid deadlock in case the loader wants to use JS on a background thread
KJS::JSLock::DropAllLocks dropLocks;
data = ServeSynchronousRequest(cache()->loader(), m_doc->docLoader(), m_job, finalURL, headers);
}
m_job = 0;
processSyncLoadResults(data, finalURL, headers);
return;
}
// Neither this object nor the JavaScript wrapper should be deleted while
// a request is in progress because we need to keep the listeners alive,
// and they are referenced by the JavaScript wrapper.
ref();
{
KJS::JSLock lock;
gcProtectNullTolerant(KJS::ScriptInterpreter::getDOMObject(this));
}
m_job->start(m_doc->docLoader());
}
void XMLHttpRequest::send(const String& body, ExceptionCode& ec)
{
if (!m_doc)
return;
if (m_state != Open) {
ec = INVALID_STATE_ERR;
return;
}
// FIXME: Should this abort or raise an exception instead if we already have a m_loader going?
if (m_loader)
return;
m_aborted = false;
ResourceRequest request(m_url);
request.setHTTPMethod(m_method);
if (!body.isNull() && m_method != "GET" && m_method != "HEAD" && (m_url.protocol().lower() == "http" || m_url.protocol().lower() == "https")) {
String contentType = getRequestHeader("Content-Type");
if (contentType.isEmpty()) {
ExceptionCode ec = 0;
setRequestHeader("Content-Type", "application/xml", ec);
ASSERT(ec == 0);
}
// FIXME: must use xmlEncoding for documents.
String charset = "UTF-8";
TextEncoding m_encoding(charset);
if (!m_encoding.isValid()) // FIXME: report an error?
m_encoding = UTF8Encoding();
request.setHTTPBody(PassRefPtr<FormData>(new FormData(m_encoding.encode(body.characters(), body.length()))));
}
if (m_requestHeaders.size() > 0)
request.addHTTPHeaderFields(m_requestHeaders);
if (!m_async) {
Vector<char> data;
ResourceError error;
ResourceResponse response;
{
// avoid deadlock in case the loader wants to use JS on a background thread
#ifdef __OWB_JS__
KJS::JSLock::DropAllLocks dropLocks;
if (m_doc->frame())
m_doc->frame()->loader()->loadResourceSynchronously(request, error, response, data);
#endif
}
m_loader = 0;
if (error.isNull())
processSyncLoadResults(data, response);
else
ec = NETWORK_ERR;
return;
}
// Neither this object nor the JavaScript wrapper should be deleted while
// a request is in progress because we need to keep the listeners alive,
// and they are referenced by the JavaScript wrapper.
ref();
{
#ifdef __OWB_JS__
KJS::JSLock lock;
gcProtectNullTolerant(KJS::ScriptInterpreter::getDOMObject(this));
#endif
}
// create can return null here, for example if we're no longer attached to a page.
// this is true while running onunload handlers
// FIXME: Maybe create can return false for other reasons too?
m_loader = SubresourceLoader::create(m_doc->frame(), this, request);
}
