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Put relative raster images from SVGs thru the resolver.
Also change tests so that they do not call out on network. Only way I could achieve it was to register a bridge extension.
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129 changes: 129 additions & 0 deletions
129
openhtmltopdf-svg-support/src/main/java/com/openhtmltopdf/svgsupport/SVGImageExtension.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,129 @@ | ||
| package com.openhtmltopdf.svgsupport; | ||
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| import java.net.URI; | ||
| import java.net.URISyntaxException; | ||
| import java.util.List; | ||
| import java.util.logging.Level; | ||
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| import org.apache.batik.bridge.BridgeContext; | ||
| import org.apache.batik.bridge.SVGBridgeExtension; | ||
| import org.apache.batik.bridge.SVGImageElementBridge; | ||
| import org.apache.batik.bridge.UserAgent; | ||
| import org.apache.batik.bridge.svg12.SVG12BridgeContext; | ||
| import org.apache.batik.bridge.svg12.SVG12BridgeExtension; | ||
| import org.apache.batik.util.ParsedURL; | ||
| import org.w3c.dom.Document; | ||
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| import com.openhtmltopdf.extend.UserAgentCallback; | ||
| import com.openhtmltopdf.util.LogMessageId; | ||
| import com.openhtmltopdf.util.XRLog; | ||
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| public class SVGImageExtension { | ||
| public static BridgeContext newBridge(String svgVersion, UserAgent userAgent, UserAgentCallback uac) { | ||
| if ("1.2".equals(svgVersion)) { | ||
| return new Bridge12Ctx(userAgent, uac); | ||
| } else { | ||
| return new BridgeCtx(userAgent, uac); | ||
| } | ||
| } | ||
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| public static String resolveUri(String uri, UserAgentCallback userAgentCallback) { | ||
| try { | ||
| // special handling of relative uri in case of file protocol, we receive something like "file:file.svg" | ||
| // ie. Batik adds file: to the start of relative uris for some reason. | ||
| URI parsedURI = new URI(uri); | ||
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| if ("file".equals(parsedURI.getScheme())) { | ||
| return new URI(parsedURI.getSchemeSpecificPart()).isAbsolute() ? | ||
| userAgentCallback.resolveURI(parsedURI.toString()) : | ||
| userAgentCallback.resolveURI(parsedURI.getSchemeSpecificPart()); | ||
| } else { | ||
| return userAgentCallback.resolveURI(uri); | ||
| } | ||
| } catch (URISyntaxException uriSyntaxException) { | ||
| XRLog.log(Level.WARNING, LogMessageId.LogMessageId1Param.EXCEPTION_URI_SYNTAX_WHILE_LOADING_EXTERNAL_SVG_RESOURCE, uri, uriSyntaxException); | ||
| return null; | ||
| } | ||
| } | ||
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| private static class BridgeCtx extends BridgeContext { | ||
| UserAgentCallback uac; | ||
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| public BridgeCtx(UserAgent userAgent, UserAgentCallback userAgentCallback) { | ||
| super(userAgent, new OpenHtmlDocumentLoader(userAgent, userAgentCallback)); | ||
| this.uac = userAgentCallback; | ||
| } | ||
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| @SuppressWarnings({ "rawtypes", "unchecked" }) | ||
| @Override | ||
| public List getBridgeExtensions(Document doc) { | ||
| List existing = super.getBridgeExtensions(doc); | ||
| existing.add(new Ext(uac)); | ||
| return existing; | ||
| } | ||
| } | ||
|
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| private static class Bridge12Ctx extends SVG12BridgeContext { | ||
| UserAgentCallback uac; | ||
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| public Bridge12Ctx(UserAgent userAgent, UserAgentCallback userAgentCallback) { | ||
| super(userAgent, new OpenHtmlDocumentLoader(userAgent, userAgentCallback)); | ||
| this.uac = userAgentCallback; | ||
| } | ||
|
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| @SuppressWarnings({ "rawtypes", "unchecked" }) | ||
| @Override | ||
| public List getBridgeExtensions(Document doc) { | ||
| List existing = super.getBridgeExtensions(doc); | ||
| existing.add(new Ext12(uac)); | ||
| return existing; | ||
| } | ||
| } | ||
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| private static class Ext extends SVGBridgeExtension { | ||
| final UserAgentCallback uac; | ||
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| public Ext(UserAgentCallback uac) { | ||
| this.uac = uac; | ||
| } | ||
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| @Override | ||
| public void registerTags(BridgeContext ctx) { | ||
| super.registerTags(ctx); | ||
| ctx.putBridge(new ImageBridge(uac)); | ||
| } | ||
| } | ||
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| private static class Ext12 extends SVG12BridgeExtension { | ||
| final UserAgentCallback uac; | ||
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| public Ext12(UserAgentCallback uac) { | ||
| this.uac = uac; | ||
| } | ||
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| @Override | ||
| public void registerTags(BridgeContext ctx) { | ||
| super.registerTags(ctx); | ||
| ctx.putBridge(new ImageBridge(uac)); | ||
| } | ||
| } | ||
|
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| private static class ImageBridge extends SVGImageElementBridge { | ||
| final UserAgentCallback uac; | ||
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| public ImageBridge(UserAgentCallback uac) { | ||
| this.uac = uac; | ||
| } | ||
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| @Override | ||
| public org.apache.batik.bridge.Bridge getInstance() { | ||
| return new ImageBridge(uac); | ||
| } | ||
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| @Override | ||
| protected org.apache.batik.gvt.GraphicsNode createImageGraphicsNode(BridgeContext ctx, org.w3c.dom.Element e, org.apache.batik.util.ParsedURL purl) { | ||
| String uri = resolveUri(purl.toString(), uac); | ||
| return super.createImageGraphicsNode(ctx, e, new ParsedURL(uri)); | ||
| }; | ||
| } | ||
| } |