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| 1 | +package com.openhtmltopdf.svgsupport; |
| 2 | + |
| 3 | +import java.net.URI; |
| 4 | +import java.net.URISyntaxException; |
| 5 | +import java.util.List; |
| 6 | +import java.util.logging.Level; |
| 7 | + |
| 8 | +import org.apache.batik.bridge.BridgeContext; |
| 9 | +import org.apache.batik.bridge.SVGBridgeExtension; |
| 10 | +import org.apache.batik.bridge.SVGImageElementBridge; |
| 11 | +import org.apache.batik.bridge.UserAgent; |
| 12 | +import org.apache.batik.bridge.svg12.SVG12BridgeContext; |
| 13 | +import org.apache.batik.bridge.svg12.SVG12BridgeExtension; |
| 14 | +import org.apache.batik.util.ParsedURL; |
| 15 | +import org.w3c.dom.Document; |
| 16 | + |
| 17 | +import com.openhtmltopdf.extend.UserAgentCallback; |
| 18 | +import com.openhtmltopdf.util.LogMessageId; |
| 19 | +import com.openhtmltopdf.util.XRLog; |
| 20 | + |
| 21 | +public class SVGImageExtension { |
| 22 | + public static BridgeContext newBridge(String svgVersion, UserAgent userAgent, UserAgentCallback uac) { |
| 23 | + if ("1.2".equals(svgVersion)) { |
| 24 | + return new Bridge12Ctx(userAgent, uac); |
| 25 | + } else { |
| 26 | + return new BridgeCtx(userAgent, uac); |
| 27 | + } |
| 28 | + } |
| 29 | + |
| 30 | + public static String resolveUri(String uri, UserAgentCallback userAgentCallback) { |
| 31 | + try { |
| 32 | + // special handling of relative uri in case of file protocol, we receive something like "file:file.svg" |
| 33 | + // ie. Batik adds file: to the start of relative uris for some reason. |
| 34 | + URI parsedURI = new URI(uri); |
| 35 | + |
| 36 | + if ("file".equals(parsedURI.getScheme())) { |
| 37 | + return new URI(parsedURI.getSchemeSpecificPart()).isAbsolute() ? |
| 38 | + userAgentCallback.resolveURI(parsedURI.toString()) : |
| 39 | + userAgentCallback.resolveURI(parsedURI.getSchemeSpecificPart()); |
| 40 | + } else { |
| 41 | + return userAgentCallback.resolveURI(uri); |
| 42 | + } |
| 43 | + } catch (URISyntaxException uriSyntaxException) { |
| 44 | + XRLog.log(Level.WARNING, LogMessageId.LogMessageId1Param.EXCEPTION_URI_SYNTAX_WHILE_LOADING_EXTERNAL_SVG_RESOURCE, uri, uriSyntaxException); |
| 45 | + return null; |
| 46 | + } |
| 47 | + } |
| 48 | + |
| 49 | + private static class BridgeCtx extends BridgeContext { |
| 50 | + UserAgentCallback uac; |
| 51 | + |
| 52 | + public BridgeCtx(UserAgent userAgent, UserAgentCallback userAgentCallback) { |
| 53 | + super(userAgent, new OpenHtmlDocumentLoader(userAgent, userAgentCallback)); |
| 54 | + this.uac = userAgentCallback; |
| 55 | + } |
| 56 | + |
| 57 | + @SuppressWarnings({ "rawtypes", "unchecked" }) |
| 58 | + @Override |
| 59 | + public List getBridgeExtensions(Document doc) { |
| 60 | + List existing = super.getBridgeExtensions(doc); |
| 61 | + existing.add(new Ext(uac)); |
| 62 | + return existing; |
| 63 | + } |
| 64 | + } |
| 65 | + |
| 66 | + private static class Bridge12Ctx extends SVG12BridgeContext { |
| 67 | + UserAgentCallback uac; |
| 68 | + |
| 69 | + public Bridge12Ctx(UserAgent userAgent, UserAgentCallback userAgentCallback) { |
| 70 | + super(userAgent, new OpenHtmlDocumentLoader(userAgent, userAgentCallback)); |
| 71 | + this.uac = userAgentCallback; |
| 72 | + } |
| 73 | + |
| 74 | + @SuppressWarnings({ "rawtypes", "unchecked" }) |
| 75 | + @Override |
| 76 | + public List getBridgeExtensions(Document doc) { |
| 77 | + List existing = super.getBridgeExtensions(doc); |
| 78 | + existing.add(new Ext12(uac)); |
| 79 | + return existing; |
| 80 | + } |
| 81 | + } |
| 82 | + |
| 83 | + private static class Ext extends SVGBridgeExtension { |
| 84 | + final UserAgentCallback uac; |
| 85 | + |
| 86 | + public Ext(UserAgentCallback uac) { |
| 87 | + this.uac = uac; |
| 88 | + } |
| 89 | + |
| 90 | + @Override |
| 91 | + public void registerTags(BridgeContext ctx) { |
| 92 | + super.registerTags(ctx); |
| 93 | + ctx.putBridge(new ImageBridge(uac)); |
| 94 | + } |
| 95 | + } |
| 96 | + |
| 97 | + private static class Ext12 extends SVG12BridgeExtension { |
| 98 | + final UserAgentCallback uac; |
| 99 | + |
| 100 | + public Ext12(UserAgentCallback uac) { |
| 101 | + this.uac = uac; |
| 102 | + } |
| 103 | + |
| 104 | + @Override |
| 105 | + public void registerTags(BridgeContext ctx) { |
| 106 | + super.registerTags(ctx); |
| 107 | + ctx.putBridge(new ImageBridge(uac)); |
| 108 | + } |
| 109 | + } |
| 110 | + |
| 111 | + private static class ImageBridge extends SVGImageElementBridge { |
| 112 | + final UserAgentCallback uac; |
| 113 | + |
| 114 | + public ImageBridge(UserAgentCallback uac) { |
| 115 | + this.uac = uac; |
| 116 | + } |
| 117 | + |
| 118 | + @Override |
| 119 | + public org.apache.batik.bridge.Bridge getInstance() { |
| 120 | + return new ImageBridge(uac); |
| 121 | + } |
| 122 | + |
| 123 | + @Override |
| 124 | + protected org.apache.batik.gvt.GraphicsNode createImageGraphicsNode(BridgeContext ctx, org.w3c.dom.Element e, org.apache.batik.util.ParsedURL purl) { |
| 125 | + String uri = resolveUri(purl.toString(), uac); |
| 126 | + return super.createImageGraphicsNode(ctx, e, new ParsedURL(uri)); |
| 127 | + }; |
| 128 | + } |
| 129 | +} |
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