status_t
BHttpRequest::_ProtocolLoop()
{
// Initialize the request redirection loop
int8 maxRedirs = fOptMaxRedirs;
bool newRequest;
do {
newRequest = false;
// Result reset
fHeaders.Clear();
_ResultHeaders().Clear();
BString host = fUrl.Host();
int port = fSSL ? 443 : 80;
if (fUrl.HasPort())
port = fUrl.Port();
if (fContext->UseProxy()) {
host = fContext->GetProxyHost();
port = fContext->GetProxyPort();
}
status_t result = fInputBuffer.InitCheck();
if (result != B_OK)
return result;
if (!_ResolveHostName(host, port)) {
_EmitDebug(B_URL_PROTOCOL_DEBUG_ERROR,
"Unable to resolve hostname (%s), aborting.",
fUrl.Host().String());
return B_SERVER_NOT_FOUND;
}
status_t requestStatus = _MakeRequest();
if (requestStatus != B_OK)
return requestStatus;
// Prepare the referer for the next request if needed
if (fOptAutoReferer)
fOptReferer = fUrl.UrlString();
switch (StatusCodeClass(fResult.StatusCode())) {
case B_HTTP_STATUS_CLASS_INFORMATIONAL:
// Header 100:continue should have been
// handled in the _MakeRequest read loop
break;
case B_HTTP_STATUS_CLASS_SUCCESS:
break;
case B_HTTP_STATUS_CLASS_REDIRECTION:
{
// Redirection has been explicitly disabled
if (!fOptFollowLocation)
break;
int code = fResult.StatusCode();
if (code == B_HTTP_STATUS_MOVED_PERMANENTLY
|| code == B_HTTP_STATUS_FOUND
|| code == B_HTTP_STATUS_SEE_OTHER
|| code == B_HTTP_STATUS_TEMPORARY_REDIRECT) {
BString locationUrl = fHeaders["Location"];
fUrl = BUrl(fUrl, locationUrl);
// 302 and 303 redirections also convert POST requests to GET
// (and remove the posted form data)
if ((code == B_HTTP_STATUS_FOUND
|| code == B_HTTP_STATUS_SEE_OTHER)
&& fRequestMethod == B_HTTP_POST) {
SetMethod(B_HTTP_GET);
delete fOptPostFields;
fOptPostFields = NULL;
delete fOptInputData;
fOptInputData = NULL;
fOptInputDataSize = 0;
}
if (--maxRedirs > 0) {
newRequest = true;
// Redirections may need a switch from http to https.
if (fUrl.Protocol() == "https")
fSSL = true;
else if (fUrl.Protocol() == "http")
fSSL = false;
_EmitDebug(B_URL_PROTOCOL_DEBUG_TEXT,
"Following: %s\n",
fUrl.UrlString().String());
}
}
break;
}
case B_HTTP_STATUS_CLASS_CLIENT_ERROR:
if (fResult.StatusCode() == B_HTTP_STATUS_UNAUTHORIZED) {
BHttpAuthentication* authentication
= &fContext->GetAuthentication(fUrl);
status_t status = B_OK;
if (authentication->Method() == B_HTTP_AUTHENTICATION_NONE) {
// There is no authentication context for this
// url yet, so let's create one.
BHttpAuthentication newAuth;
newAuth.Initialize(fHeaders["WWW-Authenticate"]);
fContext->AddAuthentication(fUrl, newAuth);
// Get the copy of the authentication we just added.
// That copy is owned by the BUrlContext and won't be
// deleted (unlike the temporary object above)
authentication = &fContext->GetAuthentication(fUrl);
}
newRequest = false;
if (fOptUsername.Length() > 0 && status == B_OK) {
// If we received an username and password, add them
// to the request. This will either change the
// credentials for an existing request, or set them
// for a new one we created just above.
//
// If this request handles HTTP redirections, it will
// also automatically retry connecting and send the
// login information.
authentication->SetUserName(fOptUsername);
authentication->SetPassword(fOptPassword);
newRequest = true;
}
}
break;
case B_HTTP_STATUS_CLASS_SERVER_ERROR:
break;
default:
case B_HTTP_STATUS_CLASS_INVALID:
break;
}
} while (newRequest);
_EmitDebug(B_URL_PROTOCOL_DEBUG_TEXT,
"%ld headers and %ld bytes of data remaining",
fHeaders.CountHeaders(), fInputBuffer.Size());
if (fResult.StatusCode() == 404)
return B_RESOURCE_NOT_FOUND;
return B_OK;
}
status_t
BHttpRequest::_ProtocolLoop()
{
// Initialize the request redirection loop
int8 maxRedirs = fOptMaxRedirs;
bool newRequest;
do {
newRequest = false;
// Result reset
fOutputHeaders.Clear();
fHeaders.Clear();
_ResultHeaders().Clear();
if (!_ResolveHostName()) {
_EmitDebug(B_URL_PROTOCOL_DEBUG_ERROR,
"Unable to resolve hostname (%s), aborting.",
fUrl.Host().String());
return B_SERVER_NOT_FOUND;
}
status_t requestStatus = _MakeRequest();
if (requestStatus != B_OK)
return requestStatus;
// Prepare the referer for the next request if needed
if (fOptAutoReferer)
fOptReferer = fUrl.UrlString();
switch (StatusCodeClass(fResult.StatusCode())) {
case B_HTTP_STATUS_CLASS_INFORMATIONAL:
// Header 100:continue should have been
// handled in the _MakeRequest read loop
break;
case B_HTTP_STATUS_CLASS_SUCCESS:
break;
case B_HTTP_STATUS_CLASS_REDIRECTION:
// Redirection has been explicitly disabled
if (!fOptFollowLocation)
break;
// TODO: Some browsers seems to translate POST requests to
// GET when following a 302 redirection
if (fResult.StatusCode() == B_HTTP_STATUS_MOVED_PERMANENTLY) {
BString locationUrl = fHeaders["Location"];
fUrl = BUrl(fUrl, locationUrl);
if (--maxRedirs > 0) {
newRequest = true;
_EmitDebug(B_URL_PROTOCOL_DEBUG_TEXT,
"Following: %s\n",
fUrl.UrlString().String());
}
}
break;
case B_HTTP_STATUS_CLASS_CLIENT_ERROR:
if (fResult.StatusCode() == B_HTTP_STATUS_UNAUTHORIZED) {
BHttpAuthentication* authentication
= &fContext->GetAuthentication(fUrl);
status_t status = B_OK;
if (authentication->Method() == B_HTTP_AUTHENTICATION_NONE) {
// There is no authentication context for this
// url yet, so let's create one.
authentication
= new(std::nothrow) BHttpAuthentication();
if (authentication == NULL)
status = B_NO_MEMORY;
else {
status = authentication->Initialize(
fHeaders["WWW-Authenticate"]);
fContext->AddAuthentication(fUrl, authentication);
}
}
newRequest = false;
if (fOptUsername.Length() > 0 && status == B_OK) {
// If we received an username and password, add them
// to the request. This will either change the
// credentials for an existing request, or set them
// for a new one we created just above.
//
// If this request handles HTTP redirections, it will
// also automatically retry connecting and send the
// login information.
authentication->SetUserName(fOptUsername);
authentication->SetPassword(fOptPassword);
newRequest = true;
}
}
break;
case B_HTTP_STATUS_CLASS_SERVER_ERROR:
break;
default:
case B_HTTP_STATUS_CLASS_INVALID:
break;
}
} while (newRequest);
_EmitDebug(B_URL_PROTOCOL_DEBUG_TEXT,
"%ld headers and %ld bytes of data remaining",
fHeaders.CountHeaders(), fInputBuffer.Size());
if (fResult.StatusCode() == 404)
return B_RESOURCE_NOT_FOUND;
return B_OK;
}
