KviCryptEngine::DecryptResult KviMircryptionEngine::decrypt(const char * inBuffer, KviCString & plainText)
{
plainText = "";
KviCString szIn = inBuffer;
// various old versions
if(kvi_strEqualCSN(inBuffer, "mcps ", 5))
szIn.cutLeft(5);
else if(kvi_strEqualCSN(inBuffer, "+OK ", 4))
szIn.cutLeft(4);
else if(kvi_strEqualCSN(inBuffer, "OK ", 3)) // some servers strip out the +
szIn.cutLeft(3);
else
{
plainText = szIn;
return KviCryptEngine::DecryptOkWasPlainText;
}
if(m_bDecryptCBC)
return doDecryptCBC(szIn, plainText) ? KviCryptEngine::DecryptOkWasEncrypted : KviCryptEngine::DecryptError;
return doDecryptECB(szIn, plainText) ? KviCryptEngine::DecryptOkWasEncrypted : KviCryptEngine::DecryptError;
}
static Window kvi_x11_findIpcSentinel(Window win)
{
Atom type;
int format;
unsigned long nItems, after;
unsigned char * data = nullptr;
if(XGetWindowProperty(kvi_ipc_get_xdisplay(), win, kvi_atom_ipc_sentinel_window,
0, 32, false, XA_STRING, &type, &format, &nItems, &after, &data) == Success)
{
if((type == XA_STRING) && (format == 8))
{
if((nItems == ((unsigned long)(kvi_sentinel_id.len()))) && data)
{
if(kvi_strEqualCSN((const char *)data, kvi_sentinel_id.ptr(), kvi_sentinel_id.len()))
{
XFree((char *)data);
return win;
}
}
}
}
Window root, parent;
Window * children;
unsigned int nChildren;
if(!XQueryTree(kvi_ipc_get_xdisplay(), win, &root, &parent, &children, &nChildren))
{
if(children)
XFree((char *)children);
return 0;
}
Window found = 0;
for(size_t i = 0; !found && i < nChildren; ++i)
found = kvi_x11_findIpcSentinel(children[i]);
if(children)
XFree((char *)children);
return found;
}
bool KviHttpRequest::processHeader(KviCString &szHeader)
{
int idx = szHeader.findFirstIdx("\r\n");
KviCString szResponse;
if(idx != -1)
{
szResponse = szHeader.left(idx);
szHeader.cutLeft(idx + 2);
} else {
szResponse = szHeader;
szHeader = "";
}
szResponse.trim();
bool bValid = false;
unsigned int uStatus = 0;
// check the response value
if(kvi_strEqualCSN(szResponse.ptr(),"HTTP",4))
{
KviCString szR = szResponse;
szR.cutToFirst(' ');
szR.trim();
int idx = szR.findFirstIdx(' ');
KviCString szNumber;
if(idx != -1)szNumber = szR.left(idx);
else szNumber = szR;
bool bOk;
uStatus = szNumber.toUInt(&bOk);
if(bOk)bValid = true;
}
QString szUniResponse = QString::fromUtf8(szResponse.ptr());
if(!bValid)
{
// the response is invalid ?
resetInternalStatus();
m_szLastError = __tr2qs("Invalid HTTP response: %1").arg(szUniResponse);
emit terminated(false);
return false;
}
emit status(__tr2qs("Received HTTP response: %1").arg(szUniResponse));
KviPointerList<KviCString> hlist;
hlist.setAutoDelete(true);
idx = szHeader.findFirstIdx("\r\n");
while(idx != -1)
{
if(idx > 0)
{
hlist.append(new KviCString(szHeader.ptr(),idx));
szHeader.cutLeft(idx + 2);
}
idx = szHeader.findFirstIdx("\r\n");
}
if(szHeader.hasData())hlist.append(new KviCString(szHeader));
KviPointerHashTable<const char *,KviCString> hdr(11,false,true);
hdr.setAutoDelete(true);
for(KviCString * s = hlist.first();s;s = hlist.next())
{
idx = s->findFirstIdx(":");
if(idx != -1)
{
KviCString szName = s->left(idx);
s->cutLeft(idx + 1);
s->trim();
hdr.replace(szName.ptr(),new KviCString(*s));
//qDebug("FOUND HEADER (%s)=(%s)",szName.ptr(),s->ptr());
}
}
KviCString * size = hdr.find("Content-length");
if(size)
{
bool bOk;
m_uTotalSize = size->toUInt(&bOk);
if(!bOk)m_uTotalSize = 0;
}
KviCString * contentEncoding = hdr.find("Content-encoding");
if(contentEncoding)
{
m_bGzip = contentEncoding->equalsCI("gzip");
}
KviCString * transferEncoding = hdr.find("Transfer-Encoding");
if(transferEncoding)
{
if(kvi_strEqualCI(transferEncoding->ptr(),"chunked"))
{
// be prepared to handle the chunked transfer encoding as required by HTTP/1.1
m_bChunkedTransferEncoding = true;
m_uRemainingChunkSize = 0;
}
}
// check the status
// case 200: // OK
// case 206: // Partial content
// case 100: // Continue ??
// case 101: // Switching protocols ???
// case 201: // Created
// case 202: // Accepted
// case 203: // Non-Authoritative Information
// case 204: // No content
// case 205: // Reset content
// case 300: // Multiple choices
// case 301: // Moved permanently
// case 302: // Found
// case 303: // See Other
// case 304: // Not modified
// case 305: // Use Proxy
// case 306: // ???
// case 307: // Temporary Redirect
// case 400: // Bad request
// case 401: // Unauthorized
// case 402: // Payment Required
// case 403: // Forbidden
// case 404: // Not found
// case 405: // Method not allowed
// case 406: // Not acceptable
// case 407: // Proxy authentication required
// case 408: // Request timeout
// case 409: // Conflict
// case 410: // Gone
// case 411: // Length required
// case 412: // Precondition failed
// case 413: // Request entity too large
// case 414: // Request-URI Too Long
// case 415: // Unsupported media type
// case 416: // Requested range not satisfiable
// case 417: // Expectation Failed
// case 500: // Internal server error
// case 501: // Not implemented
// case 502: // Bad gateway
// case 503: // Service unavailable
// case 504: // Gateway timeout
// case 505: // HTTP Version not supported
if(
(uStatus != 200) && // OK
(uStatus != 206) // Partial content
)
{
// This is not "OK" and not "Partial content"
// Error, redirect or something confusing
if(m_eProcessingType != HeadersOnly)
{
switch(uStatus)
{
case 301: // Moved permanently
case 302: // Found
case 303: // See Other
case 307: // Temporary Redirect
{
if(!m_bFollowRedirects)
{
resetInternalStatus();
m_szLastError = szResponse.ptr();
emit terminated(false);
return false;
}
m_uRedirectCount++;
if(m_uRedirectCount > m_uMaximumRedirectCount)
{
resetInternalStatus();
m_szLastError = __tr2qs("Too many redirects");
emit terminated(false);
return false;
}
KviCString * location = hdr.find("Location");
if(!location)
{
resetInternalStatus();
m_szLastError = __tr2qs("Bad redirect");
emit terminated(false);
return false;
}
KviUrl url(location->ptr());
if(
(url.url() == m_connectionUrl.url()) ||
(url.url() == m_url.url())
)
{
resetInternalStatus();
m_szLastError = __tr2qs("Redirect loop");
emit terminated(false);
return false;
}
m_connectionUrl = url;
emit status(__tr2qs("Following Redirect to %1").arg(url.url()));
if(!start())
emit terminated(false);
return false; // will exit the call stack
}
break;
break;
default:
// assume error
resetInternalStatus();
m_szLastError = szResponse.ptr();
emit terminated(false);
return false;
break;
}
// this is an error then
} // else the server will terminate (it was a HEAD request)
}
emit receivedResponse(szUniResponse);
emit header(&hdr);
if((m_uMaxContentLength > 0) && (m_uTotalSize > ((unsigned int)m_uMaxContentLength)))
{
resetInternalStatus();
m_szLastError=__tr2qs("The amount of received data exceeds the maximum length");
emit terminated(false);
return false;
}
// fixme: could check for data type etc...
return true;
}
