void PageSerializer::serializeFrame(Frame* frame)
{
Document* document = frame->document();
URL url = document->url();
if (!url.isValid() || url.isBlankURL()) {
// For blank frames we generate a fake URL so they can be referenced by their containing frame.
url = urlForBlankFrame(frame);
}
if (m_resourceURLs.contains(url)) {
// FIXME: We could have 2 frame with the same URL but which were dynamically changed and have now
// different content. So we should serialize both and somehow rename the frame src in the containing
// frame. Arg!
return;
}
Vector<Node*> nodes;
SerializerMarkupAccumulator accumulator(*this, *document, &nodes);
TextEncoding textEncoding(document->charset());
CString data;
if (!textEncoding.isValid()) {
// FIXME: iframes used as images trigger this. We should deal with them correctly.
return;
}
String text = accumulator.serializeNodes(*document->documentElement(), 0, IncludeNode);
CString frameHTML = textEncoding.encode(text, EntitiesForUnencodables);
m_resources->append(Resource(url, document->suggestedMIMEType(), SharedBuffer::create(frameHTML.data(), frameHTML.length())));
m_resourceURLs.add(url);
for (Vector<Node*>::iterator iter = nodes.begin(); iter != nodes.end(); ++iter) {
Node* node = *iter;
if (!is<Element>(*node))
continue;
Element& element = downcast<Element>(*node);
// We have to process in-line style as it might contain some resources (typically background images).
if (is<StyledElement>(element))
retrieveResourcesForProperties(downcast<StyledElement>(element).inlineStyle(), document);
if (is<HTMLImageElement>(element)) {
HTMLImageElement& imageElement = downcast<HTMLImageElement>(element);
URL url = document->completeURL(imageElement.fastGetAttribute(HTMLNames::srcAttr));
CachedImage* cachedImage = imageElement.cachedImage();
addImageToResources(cachedImage, imageElement.renderer(), url);
} else if (is<HTMLLinkElement>(element)) {
HTMLLinkElement& linkElement = downcast<HTMLLinkElement>(element);
if (CSSStyleSheet* sheet = linkElement.sheet()) {
URL url = document->completeURL(linkElement.getAttribute(HTMLNames::hrefAttr));
serializeCSSStyleSheet(sheet, url);
ASSERT(m_resourceURLs.contains(url));
}
} else if (is<HTMLStyleElement>(element)) {
if (CSSStyleSheet* sheet = downcast<HTMLStyleElement>(element).sheet())
serializeCSSStyleSheet(sheet, URL());
}
}
for (Frame* childFrame = frame->tree().firstChild(); childFrame; childFrame = childFrame->tree().nextSibling())
serializeFrame(childFrame);
}
void PageSerializer::serialize(Page* page)
{
serializeFrame(page->mainFrame());
}
void PageSerializer::serializeFrame(Frame* frame)
{
Document* document = frame->document();
KURL url = document->url();
if (!url.isValid() || url.protocolIs("about")) {
// For blank frames we generate a fake URL so they can be referenced by their containing frame.
url = urlForBlankFrame(frame);
}
if (m_resourceURLs.contains(url)) {
// FIXME: We could have 2 frame with the same URL but which were dynamically changed and have now
// different content. So we should serialize both and somehow rename the frame src in the containing
// frame. Arg!
return;
}
Vector<Node*> nodes;
SerializerMarkupAccumulator accumulator(this, document, &nodes);
TextEncoding textEncoding(document->charset());
CString data;
if (!textEncoding.isValid()) {
// FIXME: iframes used as images trigger this. We should deal with them correctly.
return;
}
String text = accumulator.serializeNodes(document->documentElement(), 0, IncludeNode);
CString frameHTML = textEncoding.encode(text.characters(), text.length(), EntitiesForUnencodables);
m_resources->append(Resource(url, document->suggestedMIMEType(), SharedBuffer::create(frameHTML.data(), frameHTML.length())));
m_resourceURLs.add(url);
for (Vector<Node*>::iterator iter = nodes.begin(); iter != nodes.end(); ++iter) {
Node* node = *iter;
if (!node->isElementNode())
continue;
Element* element = toElement(node);
// We have to process in-line style as it might contain some resources (typically background images).
retrieveResourcesForCSSDeclaration(element->style());
if (element->hasTagName(HTMLNames::imgTag)) {
HTMLImageElement* imageElement = static_cast<HTMLImageElement*>(element);
KURL url = document->completeURL(imageElement->getAttribute(HTMLNames::srcAttr));
CachedImage* cachedImage = imageElement->cachedImage();
addImageToResources(cachedImage, url);
} else if (element->hasTagName(HTMLNames::linkTag)) {
HTMLLinkElement* linkElement = static_cast<HTMLLinkElement*>(element);
StyleSheet* sheet = linkElement->sheet();
if (sheet && sheet->isCSSStyleSheet()) {
KURL url = document->completeURL(linkElement->getAttribute(HTMLNames::hrefAttr));
serializeCSSStyleSheet(static_cast<CSSStyleSheet*>(sheet), url);
ASSERT(m_resourceURLs.contains(url));
}
} else if (element->hasTagName(HTMLNames::styleTag)) {
HTMLStyleElement* styleElement = static_cast<HTMLStyleElement*>(element);
StyleSheet* sheet = styleElement->sheet();
if (sheet && sheet->isCSSStyleSheet())
serializeCSSStyleSheet(static_cast<CSSStyleSheet*>(sheet), KURL());
}
}
for (Frame* childFrame = frame->tree()->firstChild(); childFrame; childFrame = childFrame->tree()->nextSibling())
serializeFrame(childFrame);
}
int main(int argc, char *argv[]) {
pthread_t thread[1];
if (argc < 4) {
// case if arguments are less than specified
printf("Please use the program with arguments: %s <target-ip> <port> <filename>\n", argv[0]);
return 0;
}
if ((server = gethostbyname(argv[1])) == NULL)
error("ERROR: Receiver Address is Unknown or Wrong.\n");
// creating IPv4 data stream socket
printf("Creating socket to %s Port %s...\n", argv[1], argv[2]);
if ((sockfd = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP)) < 0)
error("ERROR: Create socket failed.\n");
// flag set to 1 (connection is established)
isSocketOpen = 1;
// initializing the socket host information
memset(&receiverAddr, 0, sizeof(receiverAddr));
receiverAddr.sin_family = AF_INET;
bcopy((char *)server->h_addr, (char *)&receiverAddr.sin_addr.s_addr, server->h_length);
receiverAddr.sin_port = htons(atoi(argv[2]));
// open the text file
tFile = fopen(argv[argc-1], "r");
if (tFile == NULL)
error("ERROR: File text not Found.\n");
if (pthread_create(&thread[0], NULL, childProcess, 0) != 0)
error("ERROR: Failed to create thread for child. Please free some space.\n");
// read all characters from file and put in frameStorage
int fcount = 0;
int i = 0;
char c;
do {
c = fgetc(tFile);
if (i==DATAMAX) {
frameStorage[fcount].data[i] = "\0";
i=0;
fcount++;
frameStorage[fcount] = malloc(sizeof(FRAME));
frameStorage[fcount].data = malloc((DATAMAX+1)*sizeof(Byte));
frameStorage[fcount].frameno = fcount%BUFSIZE;
frameStorage[fcount].soh = SOH;
frameStorage[fcount].stx = STX;
frameStorage[fcount].etx = ETX;
}
if (c==EOF) {
frameStorage[fcount].data[i] = Endfile;
frameStorage[fcount].data[i+1] = "\0";
} else {
frameStorage[fcount].data[i] = c;
i++;
}
} while (c!=EOF);
i=0;
int offset;
while (i<=fcount) {
if (isXON) {
if (sendto(sockfd, serializeFrame(i), 15+strlen(frameStorage[i].data), 0, (const struct sockaddr *) &receiverAddr, receiverAddrLen) != 15+strlen(frameStorage[i].data))
error("ERROR: sendto() sent buffer with size more than expected.\n");
printf("Sending frame no. %d: %s\n", i,frameStorage[i].data);
i++;
} else {
while (!isXON) {
printf("Waiting for XON...\n");
sleep(1);
}
}
sleep(1);
}
fclose(tFile);
printf("Frame sending done! Closing sockets...\n");
close(sockfd);
isSocketOpen = 0;
printf("Socket Closed!\n");
// finishing program and closing
printf("TRANSMITTER Finished transmitting frames!\n");
printf("TRANSMITTER saying goodbye and thanks!\n");
return 0;
}
