/**
* Add the content related headers. These headers contain user private data and is not used when
* we are proxying an untrusted request.
*/
private void populateHeaders() {
if (mReferrer != null) mHeaders.put("Referer", mReferrer);
if (mContentType != null) mHeaders.put(CONTENT_TYPE, mContentType);
// if we have an active proxy and have proxy credentials, do pre-emptive
// authentication to avoid an extra round-trip:
if (mNetwork.isValidProxySet()) {
String username;
String password;
/* The proxy credentials can be set in the Network thread */
synchronized (mNetwork) {
username = mNetwork.getProxyUsername();
password = mNetwork.getProxyPassword();
}
if (username != null && password != null) {
// we collect credentials ONLY if the proxy scheme is BASIC!!!
String proxyHeader = RequestHandle.authorizationHeader(true);
mHeaders.put(
proxyHeader, "Basic " + RequestHandle.computeBasicAuthResponse(username, password));
}
}
// Set cookie header
String cookie = CookieManager.getInstance().getCookie(mListener.getWebAddress());
if (cookie != null && cookie.length() > 0) {
mHeaders.put("Cookie", cookie);
}
}
// Cancel the download if active and release the queue. Called on WebCore thread.
public void cancelAndReleaseQueue() {
if (mRequestHandle != null) {
mRequestHandle.cancel();
mRequestHandle = null;
}
releaseQueue();
}
/** Uses user-supplied credentials to restar a request. */
void handleAuthResponse(String username, String password) {
if (Config.LOGV) {
Log.v(
LOGTAG,
"LoadListener.handleAuthResponse: url: "
+ mUrl
+ " username: "******" password: "
+ password);
}
// create and queue an authentication-response
if (username != null && password != null) {
if (mAuthHeader != null && mRequestHandle != null) {
mAuthHeader.setUsername(username);
mAuthHeader.setPassword(password);
int scheme = mAuthHeader.getScheme();
if (scheme == HttpAuthHeader.BASIC) {
// create a basic response
boolean isProxy = mAuthHeader.isProxy();
mRequestHandle.setupBasicAuthResponse(isProxy, username, password);
} else {
if (scheme == HttpAuthHeader.DIGEST) {
// create a digest response
boolean isProxy = mAuthHeader.isProxy();
String realm = mAuthHeader.getRealm();
String nonce = mAuthHeader.getNonce();
String qop = mAuthHeader.getQop();
String algorithm = mAuthHeader.getAlgorithm();
String opaque = mAuthHeader.getOpaque();
mRequestHandle.setupDigestAuthResponse(
isProxy, username, password, realm, nonce, qop, algorithm, opaque);
}
}
}
}
}
/**
* Cancel a request. FIXME: This will only work if the request has yet to be handled. This is in
* no way guarenteed if requests are served in a separate thread. It also causes major problems if
* cancel is called during an EventHandler's method call.
*/
public void cancel() {
if (Config.LOGV) {
if (mRequestHandle == null) {
Log.v(LOGTAG, "LoadListener.cancel(): no requestHandle");
} else {
Log.v(LOGTAG, "LoadListener.cancel()");
}
}
if (mRequestHandle != null) {
mRequestHandle.cancel();
mRequestHandle = null;
}
mCacheResult = null;
mCancelled = true;
clearNativeLoader();
}
/*
* Perform the actual redirection. This involves setting up the new URL,
* informing WebCore and then telling the Network to start loading again.
*/
private void doRedirect() {
// as cancel() can cancel the load before doRedirect() is
// called through handleMessage, needs to check to see if we
// are canceled before proceed
if (mCancelled) {
return;
}
String redirectTo = mHeaders.getLocation();
if (redirectTo != null) {
int nativeResponse = createNativeResponse();
redirectTo = nativeRedirectedToUrl(mUrl, redirectTo, nativeResponse);
// nativeRedirectedToUrl() may call cancel(), e.g. when redirect
// from a https site to a http site, check mCancelled again
if (mCancelled) {
return;
}
if (redirectTo == null) {
Log.d(LOGTAG, "Redirection failed for " + mHeaders.getLocation());
cancel();
return;
} else if (!URLUtil.isNetworkUrl(redirectTo)) {
final String text =
mContext.getString(com.android.internal.R.string.open_permission_deny)
+ "\n"
+ redirectTo;
nativeAddData(text.getBytes(), text.length());
nativeFinished();
clearNativeLoader();
return;
}
if (mOriginalUrl == null) {
mOriginalUrl = mUrl;
}
// Cache the redirect response
if (mCacheResult != null) {
if (getErrorID() == OK) {
CacheManager.saveCacheFile(mUrl, mCacheResult);
}
mCacheResult = null;
}
setUrl(redirectTo);
// Redirect may be in the cache
if (mRequestHeaders == null) {
mRequestHeaders = new HashMap<String, String>();
}
if (!checkCache(mRequestHeaders)) {
// mRequestHandle can be null when the request was satisfied
// by the cache, and the cache returned a redirect
if (mRequestHandle != null) {
mRequestHandle.setupRedirect(redirectTo, mStatusCode, mRequestHeaders);
} else {
String method = mMethod;
if (method == null) {
return;
}
Network network = Network.getInstance(getContext());
network.requestURL(method, mRequestHeaders, mPostData, this, mIsHighPriority);
}
}
} else {
cancel();
}
if (Config.LOGV) {
Log.v(LOGTAG, "LoadListener.onRedirect(): redirect to: " + redirectTo);
}
}
/**
* Handles SSL error(s) on the way down from the user (the user has already provided their
* feedback).
*/
void handleSslErrorResponse(boolean proceed) {
if (mRequestHandle != null) {
mRequestHandle.handleSslErrorResponse(proceed);
}
}
/**
* Event handler's endData call. Send a message to the handler notifying them that the data has
* finished. IMPORTANT: as this is called from network thread, can't call native directly
*/
public void endData() {
if (Config.LOGV) {
Log.v(LOGTAG, "LoadListener.endData(): url: " + url());
}
if (mCancelled) return;
switch (mStatusCode) {
case HTTP_MOVED_PERMANENTLY:
// 301 - permanent redirect
mPermanent = true;
case HTTP_FOUND:
case HTTP_SEE_OTHER:
case HTTP_TEMPORARY_REDIRECT:
if (mMethod == null && mRequestHandle == null) {
Log.e(LOGTAG, "LoadListener.endData(): method is null!");
Log.e(LOGTAG, "LoadListener.endData(): url = " + url());
}
// 301, 302, 303, and 307 - redirect
if (mStatusCode == HTTP_TEMPORARY_REDIRECT) {
if (mRequestHandle != null && mRequestHandle.getMethod().equals("POST")) {
sendMessageInternal(obtainMessage(MSG_LOCATION_CHANGED_REQUEST));
} else if (mMethod != null && mMethod.equals("POST")) {
sendMessageInternal(obtainMessage(MSG_LOCATION_CHANGED_REQUEST));
} else {
sendMessageInternal(obtainMessage(MSG_LOCATION_CHANGED));
}
} else {
sendMessageInternal(obtainMessage(MSG_LOCATION_CHANGED));
}
return;
case HTTP_AUTH:
case HTTP_PROXY_AUTH:
// According to rfc2616, the response for HTTP_AUTH must include
// WWW-Authenticate header field and the response for
// HTTP_PROXY_AUTH must include Proxy-Authenticate header field.
if (mAuthHeader != null
&& (Network.getInstance(mContext).isValidProxySet() || !mAuthHeader.isProxy())) {
Network.getInstance(mContext).handleAuthRequest(this);
return;
}
break; // use default
case HTTP_NOT_MODIFIED:
// Server could send back NOT_MODIFIED even if we didn't
// ask for it, so make sure we have a valid CacheLoader
// before calling it.
if (mCacheLoader != null) {
detachRequestHandle();
mCacheLoader.load();
if (Config.LOGV) {
Log.v(LOGTAG, "LoadListener cache load url=" + url());
}
return;
}
break; // use default
case HTTP_NOT_FOUND:
// Not an error, the server can send back content.
default:
break;
}
sendMessageInternal(obtainMessage(MSG_CONTENT_FINISHED));
detachRequestHandle();
}