https://issues.apache.org/bugzilla/show_bug.cgi?id=54059
Priority: P2
Bug ID: 54059
Assignee: [email protected]
Summary: ParsedURL fails using "data:" URI scheme when data
contains style sheet including #-character
Severity: normal
Classification: Unclassified
OS: Linux
Reporter: [email protected]
Hardware: PC
Status: NEW
Version: 1.8
Component: SVG Rasterizer
Product: Batik
Transcoder allows to pass a user style sheet uri an a hint.
Passing an data uri, such as "data:text/css;charset=UTF-8, .g { display:none;}"
works as expected. But as soon, as the data (style sheet) contains a
#-character, the style sheet can not be parsed correctly any more.
The reason for this is in the ParsedULR class (or a class used by it -
ParsedURLDataProtocolHandler:parseURL(String urlStr)) because the # character
is interpreted as a URL fragment separator, not considering the used URI schema
at all. As far as i know is the syntax for data URI's
"data:<mediatype>[;base64],<data>". Because of this, the part after the first
#-character is taken as URI fragment and is no longer part of the style sheet,
resulting in an exception like this:
org.w3c.dom.DOMException: data:text/css;charset=UTF-8,#RestrictedAreas {
display:none;}:
Invalid CSS document.
java.lang.NullPointerException
at
org.apache.batik.css.engine.CSSEngine.parseStyleSheet(CSSEngine.java:1184)
at
org.apache.batik.css.engine.CSSEngine.parseStyleSheet(CSSEngine.java:1125)
at
org.apache.batik.bridge.BridgeContext.initializeDocument(BridgeContext.java:386)
at org.apache.batik.bridge.GVTBuilder.build(GVTBuilder.java:55)
at
org.apache.batik.transcoder.SVGAbstractTranscoder.transcode(SVGAbstractTranscoder.java:208)
at
org.apache.batik.transcoder.image.ImageTranscoder.transcode(ImageTranscoder.java:92)
at
org.apache.batik.transcoder.XMLAbstractTranscoder.transcode(XMLAbstractTranscoder.java:142)
at
org.apache.batik.transcoder.SVGAbstractTranscoder.transcode(SVGAbstractTranscoder.java:156)
Reproduce:
Passing an URI as "data:text/css;charset=UTF-8,#RestrictedAreas {
display:none;}" as a user-stylsheet-uri to the transcoder hints.
Workaround:
a) Use a file instead of encoding data directly in the URL
b) Encode style sheet data using based64
String stylesheet = "#RestrictedAreas { display:none;}"
Charset charset = Charset.forName("UTF-8");
byte[] styleSheetBytes =
Base64.encodeBase64(charset.encode(stylesheet).array());
CharBuffer styleSheet = charset.decode(ByteBuffer.wrap(styleSheetBytes));
String dataURL = "data:text/css;base64,"+styleSheet;
hints.put(ImageTranscoder.KEY_USER_STYLESHEET_URI, dataURL);
regards
--
You are receiving this mail because:
You are the assignee for the bug.
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
