private MutableContent GetMutableContent(GadgetSpec spec, View v)
{
// TODO - Consider using caching here to avoid parse costs
MutableContent mc = new MutableContent(htmlParser, v.getContent());
return(mc);
}
public RewriterResults rewrite(Gadget gadget, MutableContent content)
{
if (gadget.getSpec().getModulePrefs().getFeatures().ContainsKey("caja") ||
"1".Equals(gadget.getContext().getParameter("caja")))
{
URI retrievedUri = gadget.getContext().getUrl();
UriCallback2 cb = new UriCallback2(retrievedUri);
MessageQueue mq = new SimpleMessageQueue();
DefaultGadgetRewriter rw = new DefaultGadgetRewriter(mq);
CharProducer input = CharProducer.Factory.create(
new java.io.StringReader(content.getContent()),
FilePosition.instance(new InputSource(new java.net.URI(retrievedUri.ToString())), 2, 1, 1));
java.lang.StringBuilder output = new java.lang.StringBuilder();
try
{
rw.rewriteContent(new java.net.URI(retrievedUri.ToString()), input, cb, output);
}
catch (GadgetRewriteException e)
{
throwCajolingException(e, mq);
return RewriterResults.notCacheable();
}
catch (IOException e)
{
throwCajolingException(e, mq);
return RewriterResults.notCacheable();
}
content.setContent(tameCajaClientApi() + output.ToString());
}
return null;
}
public virtual RewriterResults rewrite(sRequest request, sResponse original, MutableContent content)
{
ByteArrayOutputStream baos = new ByteArrayOutputStream((content.getContent().Length * 110) / 100);
OutputStreamWriter output = new OutputStreamWriter(baos);
String mimeType = original.getHeader("Content-Type");
if (request.RewriteMimeType != null)
{
mimeType = request.RewriteMimeType;
}
GadgetSpec spec = null;
if (request.Gadget != null)
{
spec = _specFactory.getGadgetSpec(request.Gadget.toJavaUri(), false);
}
if (rewrite(spec, request.getUri(),
content,
mimeType,
output))
{
content.setContent(Encoding.Default.GetString(baos.toByteArray()));
return RewriterResults.cacheableIndefinitely();
}
return null;
}
public virtual RewriterResults rewrite(sRequest request, sResponse original, MutableContent content)
{
ByteArrayOutputStream baos = new ByteArrayOutputStream((content.getContent().Length * 110) / 100);
OutputStreamWriter output = new OutputStreamWriter(baos);
String mimeType = original.getHeader("Content-Type");
if (request.RewriteMimeType != null)
{
mimeType = request.RewriteMimeType;
}
GadgetSpec spec = null;
if (request.Gadget != null)
{
spec = _specFactory.getGadgetSpec(request.Gadget.toJavaUri(), false);
}
if (rewrite(spec, request.getUri(),
content,
mimeType,
output))
{
content.setContent(Encoding.Default.GetString(baos.toByteArray()));
return(RewriterResults.cacheableIndefinitely());
}
return(null);
}
public RewriterResults rewrite(Gadget gadget, MutableContent content)
{
if (gadget.getSpec().getModulePrefs().getFeatures().ContainsKey("caja") ||
"1".Equals(gadget.getContext().getParameter("caja")))
{
URI retrievedUri = gadget.getContext().getUrl();
UriCallback2 cb = new UriCallback2(retrievedUri);
MessageQueue mq = new SimpleMessageQueue();
DefaultGadgetRewriter rw = new DefaultGadgetRewriter(mq);
CharProducer input = CharProducer.Factory.create(
new java.io.StringReader(content.getContent()),
FilePosition.instance(new InputSource(new java.net.URI(retrievedUri.ToString())), 2, 1, 1));
java.lang.StringBuilder output = new java.lang.StringBuilder();
try
{
rw.rewriteContent(new java.net.URI(retrievedUri.ToString()), input, cb, output);
}
catch (GadgetRewriteException e)
{
throwCajolingException(e, mq);
return(RewriterResults.notCacheable());
}
catch (IOException e)
{
throwCajolingException(e, mq);
return(RewriterResults.notCacheable());
}
content.setContent(tameCajaClientApi() + output.ToString());
}
return(null);
}
private bool rewrite(GadgetSpec spec, Uri source, MutableContent mc, String mimeType, java.io.Writer writer)
{
// Dont rewrite content if the spec is unavailable
if (spec == null)
{
return(false);
}
// Store the feature in the spec so we dont keep parsing it
ContentRewriterFeature rewriterFeature = new ContentRewriterFeature(spec, includeUrls, excludeUrls, expires, includeTags);
if (!rewriterFeature.isRewriteEnabled())
{
return(false);
}
if (isHTML(mimeType))
{
Dictionary <String, IHtmlTagTransformer> transformerMap = new Dictionary <string, IHtmlTagTransformer>();
if (ProxyUrl != null)
{
ILinkRewriter linkRewriter = CreateLinkRewriter(spec, rewriterFeature);
LinkingTagRewriter rewriter = new LinkingTagRewriter(linkRewriter, source);
HashSet <String> toProcess = new HashSet <string>();
foreach (var item in rewriter.getSupportedTags())
{
toProcess.Add(item);
}
toProcess.IntersectWith(rewriterFeature.getIncludedTags());
foreach (string tag in toProcess)
{
transformerMap[tag] = rewriter;
}
if (rewriterFeature.getIncludedTags().Contains("style"))
{
transformerMap["style"] = new StyleTagRewriter(source, linkRewriter);
}
}
if (ConcatUrl != null &&
rewriterFeature.getIncludedTags().Contains("script"))
{
transformerMap["script"] = new JavascriptTagMerger(spec, rewriterFeature, ConcatUrl, source);
}
HtmlRewriter.rewrite(new StringReader(mc.getContent()), source, transformerMap, writer);
return(true);
}
if (isCSS(mimeType))
{
if (ProxyUrl != null)
{
CssRewriter.rewrite(new StringReader(mc.getContent()), source, CreateLinkRewriter(spec, rewriterFeature), writer, false);
return(true);
}
return(false);
}
return(false);
}
public RewriterResults rewrite(Gadget gadget, MutableContent mutableContent)
{
Document document = mutableContent.getDocument();
Element head = (Element)DomUtil.getFirstNamedChildNode(document.getDocumentElement(), "head");
// Remove all the elements currently in head and add them back after we inject content
NodeList children = head.getChildNodes();
List<Node> existingHeadContent = new List<Node>(children.getLength());
for (int i = 0; i < children.getLength(); i++)
{
existingHeadContent.Add(children.item(i));
}
foreach(Node n in existingHeadContent)
{
head.removeChild(n);
}
// Only inject default styles if no doctype was specified.
if (document.getDoctype() == null)
{
Element defaultStyle = document.createElement("style");
defaultStyle.setAttribute("type", "text/css");
head.appendChild(defaultStyle);
defaultStyle.appendChild(defaultStyle.getOwnerDocument().
createTextNode(DEFAULT_CSS));
}
InjectBaseTag(gadget, head);
InjectFeatureLibraries(gadget, head);
// This can be one script block.
Element mainScriptTag = document.createElement("script");
InjectMessageBundles(gadget, mainScriptTag);
InjectDefaultPrefs(gadget, mainScriptTag);
InjectPreloads(gadget, mainScriptTag);
// We need to inject our script before any developer scripts.
head.appendChild(mainScriptTag);
Element body = (Element)DomUtil.getFirstNamedChildNode(document.getDocumentElement(), "body");
LocaleSpec localeSpec = gadget.getLocale();
if (localeSpec != null) {
body.setAttribute("dir", localeSpec.getLanguageDirection());
}
// re append head content
foreach(Node node in existingHeadContent)
{
head.appendChild(node);
}
InjectOnLoadHandlers(body);
mutableContent.documentChanged();
return RewriterResults.notCacheable();
}
public String rewriteGadget(Gadget gadget, View currentView)
{
if (currentView == null)
{
// Nothing to rewrite.
return(null);
}
MutableContent mc = GetMutableContent(gadget.getSpec(), currentView);
foreach (IContentRewriter rewriter in rewriters)
{
rewriter.rewrite(gadget, mc);
}
return(mc.getContent());
}
public virtual RewriterResults rewrite(Gadget gadget, MutableContent content)
{
java.io.StringWriter sw = new java.io.StringWriter();
GadgetSpec spec = gadget.getSpec();
Uri _base = spec.getUrl();
View view = gadget.getCurrentView();
if (view != null && view.getHref() != null)
{
_base = view.getHref();
}
if (rewrite(spec, _base, content, "text/html", sw))
{
content.setContent(sw.toString());
}
return(null);
}
public String rewriteGadget(Gadget gadget, String content)
{
if (content == null)
{
// Nothing to rewrite.
return(null);
}
MutableContent mc = GetMutableContent(content);
foreach (IContentRewriter rewriter in rewriters)
{
rewriter.rewrite(gadget, mc);
}
return(mc.getContent());
}
public sResponse rewriteHttpResponse(sRequest req, sResponse resp)
{
String originalContent = resp.responseString;
MutableContent mc = GetMutableContent(originalContent);
foreach (IContentRewriter rewriter in rewriters)
{
rewriter.rewrite(req, resp, mc);
}
String rewrittenContent = mc.getContent();
if (rewrittenContent.Equals(originalContent))
{
return(resp);
}
return(new HttpResponseBuilder(resp).setResponseString(rewrittenContent).create());
}
public RewriterResults rewrite(Gadget gadget, MutableContent mutableContent)
{
Document document = mutableContent.getDocument();
Element head = (Element)DomUtil.getFirstNamedChildNode(document.getDocumentElement(), "head");
// Remove all the elements currently in head and add them back after we inject content
NodeList children = head.getChildNodes();
List <Node> existingHeadContent = new List <Node>(children.getLength());
for (int i = 0; i < children.getLength(); i++)
{
existingHeadContent.Add(children.item(i));
}
foreach (Node n in existingHeadContent)
{
head.removeChild(n);
}
// Only inject default styles if no doctype was specified.
if (document.getDoctype() == null)
{
Element defaultStyle = document.createElement("style");
defaultStyle.setAttribute("type", "text/css");
head.appendChild(defaultStyle);
defaultStyle.appendChild(defaultStyle.getOwnerDocument().
createTextNode(DEFAULT_CSS));
}
InjectBaseTag(gadget, head);
InjectFeatureLibraries(gadget, head);
// This can be one script block.
Element mainScriptTag = document.createElement("script");
InjectMessageBundles(gadget, mainScriptTag);
InjectDefaultPrefs(gadget, mainScriptTag);
InjectPreloads(gadget, mainScriptTag);
// We need to inject our script before any developer scripts.
head.appendChild(mainScriptTag);
Element body = (Element)DomUtil.getFirstNamedChildNode(document.getDocumentElement(), "body");
LocaleSpec localeSpec = gadget.getLocale();
if (localeSpec != null)
{
body.setAttribute("dir", localeSpec.getLanguageDirection());
}
// re append head content
foreach (Node node in existingHeadContent)
{
head.appendChild(node);
}
InjectOnLoadHandlers(body);
mutableContent.documentChanged();
return(RewriterResults.notCacheable());
}
public RewriterResults rewrite(sRequest req, sResponse resp, MutableContent content)
{
return(RewriterResults.cacheableIndefinitely());
}
public virtual RewriterResults rewrite(Gadget gadget, MutableContent content)
{
java.io.StringWriter sw = new java.io.StringWriter();
GadgetSpec spec = gadget.getSpec();
Uri _base = spec.getUrl();
View view = gadget.getCurrentView();
if (view != null && view.getHref() != null)
{
_base = view.getHref();
}
if (rewrite(spec, _base, content, "text/html", sw))
{
content.setContent(sw.toString());
}
return null;
}
private bool rewrite(GadgetSpec spec, Uri source, MutableContent mc, String mimeType, java.io.Writer writer)
{
// Dont rewrite content if the spec is unavailable
if (spec == null)
{
return false;
}
// Store the feature in the spec so we dont keep parsing it
ContentRewriterFeature rewriterFeature = new ContentRewriterFeature(spec, includeUrls, excludeUrls, expires, includeTags);
if (!rewriterFeature.isRewriteEnabled())
{
return false;
}
if (isHTML(mimeType))
{
Dictionary<String, IHtmlTagTransformer> transformerMap = new Dictionary<string, IHtmlTagTransformer>();
if (ProxyUrl != null)
{
ILinkRewriter linkRewriter = CreateLinkRewriter(spec, rewriterFeature);
LinkingTagRewriter rewriter = new LinkingTagRewriter(linkRewriter, source);
HashSet<String> toProcess = new HashSet<string>();
foreach (var item in rewriter.getSupportedTags())
{
toProcess.Add(item);
}
toProcess.IntersectWith(rewriterFeature.getIncludedTags());
foreach (string tag in toProcess)
{
transformerMap[tag] = rewriter;
}
if (rewriterFeature.getIncludedTags().Contains("style"))
{
transformerMap["style"] = new StyleTagRewriter(source, linkRewriter);
}
}
if (ConcatUrl != null &&
rewriterFeature.getIncludedTags().Contains("script"))
{
transformerMap["script"] = new JavascriptTagMerger(spec, rewriterFeature, ConcatUrl, source);
}
HtmlRewriter.rewrite(new StringReader(mc.getContent()), source, transformerMap, writer);
return true;
}
if (isCSS(mimeType))
{
if (ProxyUrl != null)
{
CssRewriter.rewrite(new StringReader(mc.getContent()), source, CreateLinkRewriter(spec, rewriterFeature), writer, false);
return true;
}
return false;
}
return false;
}
private MutableContent GetMutableContent(GadgetSpec spec, View v)
{
// TODO - Consider using caching here to avoid parse costs
MutableContent mc = new MutableContent(htmlParser, v.getContent());
return mc;
}
public RewriterResults rewrite(sRequest req, sResponse resp, MutableContent content)
{
return RewriterResults.cacheableIndefinitely();
}
private MutableContent GetMutableContent(String content)
{
MutableContent mc = new MutableContent(htmlParser, content);
return(mc);
}
public RewriterResults rewrite(sRequest req, sResponse resp, MutableContent content)
{
return null;
}
public RewriterResults rewrite(sRequest req, sResponse resp, MutableContent content)
{
return(null);
}
private MutableContent GetMutableContent(String content)
{
MutableContent mc = new MutableContent(htmlParser, content);
return mc;
}
