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);
}
/**
* @param concatBase Base url of the Concat servlet. Expected to be of the
* form www.host.com/concat?
* @param relativeUrlBase to resolve relative urls
*/
public JavascriptTagMerger(GadgetSpec spec, ContentRewriterFeature rewriterFeature,
String concatBase, Uri relativeUrlBase)
{
// Force the mime-type to mimic browser expectation so rewriters
// can function properly
this.concatBase = concatBase
+ ProxyBase.REWRITE_MIME_TYPE_PARAM
+ "=text/javascript&"
+ "gadget="
+ HttpUtility.UrlEncode(spec.getUrl().ToString())
+ "&fp="
+ rewriterFeature.getFingerprint()
+ '&';
this.relativeUrlBase = relativeUrlBase;
}
/**
* @param concatBase Base url of the Concat servlet. Expected to be of the
* form www.host.com/concat?
* @param relativeUrlBase to resolve relative urls
*/
public JavascriptTagMerger(GadgetSpec spec, ContentRewriterFeature rewriterFeature,
String concatBase, Uri relativeUrlBase)
{
// Force the mime-type to mimic browser expectation so rewriters
// can function properly
this.concatBase = concatBase
+ ProxyBase.REWRITE_MIME_TYPE_PARAM
+ "=text/javascript&"
+ "gadget="
+ HttpUtility.UrlEncode(spec.getUrl().ToString())
+ "&fp="
+ rewriterFeature.getFingerprint()
+ '&';
this.relativeUrlBase = relativeUrlBase;
}
protected internal ILinkRewriter CreateLinkRewriter(GadgetSpec spec, ContentRewriterFeature rewriterFeature)
{
return new ProxyingLinkRewriter(spec.getUrl(), rewriterFeature, ProxyUrl);
}
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;
}
protected internal ILinkRewriter CreateLinkRewriter(GadgetSpec spec, ContentRewriterFeature rewriterFeature)
{
return(new ProxyingLinkRewriter(spec.getUrl(), rewriterFeature, ProxyUrl));
}