diff options
Diffstat (limited to 'src/java/org/apache/fop/render/pdf/PDFRendererConfig.java')
| -rw-r--r-- | src/java/org/apache/fop/render/pdf/PDFRendererConfig.java | 227 |
1 files changed, 227 insertions, 0 deletions
diff --git a/src/java/org/apache/fop/render/pdf/PDFRendererConfig.java b/src/java/org/apache/fop/render/pdf/PDFRendererConfig.java new file mode 100644 index 000000000..049345609 --- /dev/null +++ b/src/java/org/apache/fop/render/pdf/PDFRendererConfig.java @@ -0,0 +1,227 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed with + * this work for additional information regarding copyright ownership. + * The ASF licenses this file to You under the Apache License, Version 2.0 + * (the "License"); you may not use this file except in compliance with + * the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +/* $Id$ */ + +package org.apache.fop.render.pdf; + +import java.util.ArrayList; +import java.util.EnumMap; +import java.util.HashMap; +import java.util.List; +import java.util.Map; + +import org.apache.avalon.framework.configuration.Configuration; +import org.apache.avalon.framework.configuration.ConfigurationException; +import org.apache.commons.logging.Log; +import org.apache.commons.logging.LogFactory; + +import org.apache.fop.apps.FOPException; +import org.apache.fop.apps.FOUserAgent; +import org.apache.fop.apps.MimeConstants; +import org.apache.fop.fonts.DefaultFontConfig; +import org.apache.fop.fonts.DefaultFontConfig.DefaultFontConfigParser; +import org.apache.fop.pdf.PDFEncryptionParams; +import org.apache.fop.pdf.PDFFilterList; +import org.apache.fop.render.RendererConfig; +import org.apache.fop.render.RendererConfigOption; +import org.apache.fop.util.LogUtil; + +import static org.apache.fop.render.pdf.PDFEncryptionOption.ENCRYPTION_LENGTH; +import static org.apache.fop.render.pdf.PDFEncryptionOption.ENCRYPTION_PARAMS; +import static org.apache.fop.render.pdf.PDFEncryptionOption.NO_ACCESSCONTENT; +import static org.apache.fop.render.pdf.PDFEncryptionOption.NO_ANNOTATIONS; +import static org.apache.fop.render.pdf.PDFEncryptionOption.NO_ASSEMBLEDOC; +import static org.apache.fop.render.pdf.PDFEncryptionOption.NO_COPY_CONTENT; +import static org.apache.fop.render.pdf.PDFEncryptionOption.NO_EDIT_CONTENT; +import static org.apache.fop.render.pdf.PDFEncryptionOption.NO_FILLINFORMS; +import static org.apache.fop.render.pdf.PDFEncryptionOption.NO_PRINT; +import static org.apache.fop.render.pdf.PDFEncryptionOption.NO_PRINTHQ; +import static org.apache.fop.render.pdf.PDFEncryptionOption.OWNER_PASSWORD; +import static org.apache.fop.render.pdf.PDFEncryptionOption.USER_PASSWORD; +import static org.apache.fop.render.pdf.PDFRendererOption.DISABLE_SRGB_COLORSPACE; +import static org.apache.fop.render.pdf.PDFRendererOption.FILTER_LIST; +import static org.apache.fop.render.pdf.PDFRendererOption.OUTPUT_PROFILE; +import static org.apache.fop.render.pdf.PDFRendererOption.PDF_A_MODE; +import static org.apache.fop.render.pdf.PDFRendererOption.PDF_X_MODE; +import static org.apache.fop.render.pdf.PDFRendererOption.VERSION; + +/** + * The PDF renderer configuration data object. + */ +public final class PDFRendererConfig implements RendererConfig { + + private static final Log LOG = LogFactory.getLog(PDFRendererConfig.class); + + private final PDFRendererOptionsConfig configOption; + + private final DefaultFontConfig fontConfig; + + private PDFRendererConfig(DefaultFontConfig fontConfig, PDFRendererOptionsConfig config) { + this.fontConfig = fontConfig; + this.configOption = config; + } + + public PDFRendererOptionsConfig getConfigOptions() { + return configOption; + } + + public DefaultFontConfig getFontInfoConfig() { + return fontConfig; + } + + /** + * The PDF renderer configuration data parser. + */ + public static final class PDFRendererConfigParser implements RendererConfigParser { + + public PDFRendererConfig build(FOUserAgent userAgent, Configuration cfg) throws FOPException { + boolean strict = userAgent != null ? userAgent.validateUserConfigStrictly() : false; + return new ParserHelper(cfg, userAgent, strict).pdfConfig; + } + + public String getMimeType() { + return MimeConstants.MIME_PDF; + } + } + + private static final class ParserHelper { + + private final Map<PDFRendererOption, Object> configOptions + = new EnumMap<PDFRendererOption, Object>(PDFRendererOption.class); + + private PDFEncryptionParams encryptionConfig; + + private PDFRendererConfig pdfConfig; + + private ParserHelper(Configuration cfg, FOUserAgent userAgent, boolean strict) throws FOPException { + if (cfg != null) { + configure(cfg, userAgent, strict); + } + pdfConfig = new PDFRendererConfig(new DefaultFontConfigParser().parse(cfg, strict), + new PDFRendererOptionsConfig(configOptions, encryptionConfig)); + } + + private void parseAndPut(PDFRendererOption option, Configuration cfg) { + put(option, option.parse(parseConfig(cfg, option))); + } + + private void put(PDFRendererOption option, Object value) { + if (value != null && !value.equals(option.getDefaultValue())) { + configOptions.put(option, value); + } + } + + private void configure(Configuration cfg, FOUserAgent userAgent, boolean strict) throws FOPException { + try { + buildFilterMapFromConfiguration(cfg); + parseAndPut(PDF_A_MODE, cfg); + parseAndPut(PDF_X_MODE, cfg); + configureEncryptionParams(cfg, userAgent, strict); + parseAndPut(OUTPUT_PROFILE, cfg); + parseAndPut(DISABLE_SRGB_COLORSPACE, cfg); + + parseAndPut(VERSION, cfg); + } catch (ConfigurationException e) { + LogUtil.handleException(LOG, e, strict); + } + } + + private void configureEncryptionParams(Configuration cfg, FOUserAgent userAgent, boolean strict) { + Configuration encryptCfg = cfg.getChild(ENCRYPTION_PARAMS, false); + if (encryptCfg != null) { + encryptionConfig = new PDFEncryptionParams(); + encryptionConfig.setOwnerPassword(parseConfig(encryptCfg, OWNER_PASSWORD)); + encryptionConfig.setUserPassword(parseConfig(encryptCfg, USER_PASSWORD)); + encryptionConfig.setAllowPrint(!doesValueExist(encryptCfg, NO_PRINT)); + encryptionConfig.setAllowCopyContent(!doesValueExist(encryptCfg, NO_COPY_CONTENT)); + encryptionConfig.setAllowEditContent(!doesValueExist(encryptCfg, NO_EDIT_CONTENT)); + encryptionConfig.setAllowEditAnnotations(!doesValueExist(encryptCfg, NO_ANNOTATIONS)); + encryptionConfig.setAllowFillInForms(!doesValueExist(encryptCfg, NO_FILLINFORMS)); + encryptionConfig.setAllowAccessContent(!doesValueExist(encryptCfg, NO_ACCESSCONTENT)); + encryptionConfig.setAllowAssembleDocument(!doesValueExist(encryptCfg, NO_ASSEMBLEDOC)); + encryptionConfig.setAllowPrintHq(!doesValueExist(encryptCfg, NO_PRINTHQ)); + String encryptionLength = parseConfig(encryptCfg, ENCRYPTION_LENGTH); + if (encryptionLength != null) { + int validatedLength = checkEncryptionLength(Integer.parseInt(encryptionLength), userAgent); + encryptionConfig.setEncryptionLengthInBits(validatedLength); + } + } + } + + private void buildFilterMapFromConfiguration(Configuration cfg) throws ConfigurationException, + FOPException { + Configuration[] filterLists = cfg.getChildren(FILTER_LIST.getName()); + Map<String, List<String>> filterMap = new HashMap<String, List<String>>(); + for (Configuration filters : filterLists) { + String type = filters.getAttribute("type", PDFFilterList.DEFAULT_FILTER); + List<String> filterList = new ArrayList<String>(); + for (Configuration nameCfg : filters.getChildren("value")) { + filterList.add(nameCfg.getValue()); + } + if (!filterList.isEmpty() && LOG.isDebugEnabled()) { + StringBuffer debug = new StringBuffer("Adding PDF filter"); + if (filterList.size() != 1) { + debug.append("s"); + } + debug.append(" for type ").append(type).append(": "); + for (int j = 0; j < filterList.size(); j++) { + if (j != 0) { + debug.append(", "); + } + debug.append(filterList.get(j)); + } + LogUtil.handleError(LOG, debug.toString(), true); + } + + if (filterMap.get(type) != null) { + throw new ConfigurationException("A filterList of type '" + + type + "' has already been defined"); + } + filterMap.put(type, filterList); + } + put(FILTER_LIST, filterMap); + } + + private String parseConfig(Configuration cfg, RendererConfigOption option) { + Configuration child = cfg.getChild(option.getName()); + return child.getValue(null); + } + + private boolean doesValueExist(Configuration cfg, RendererConfigOption option) { + return cfg.getChild(option.getName(), false) != null; + } + + private int checkEncryptionLength(int encryptionLength, FOUserAgent userAgent) { + int correctEncryptionLength = encryptionLength; + if (encryptionLength < 40) { + correctEncryptionLength = 40; + } else if (encryptionLength > 128) { + correctEncryptionLength = 128; + } else if (encryptionLength % 8 != 0) { + correctEncryptionLength = Math.round(encryptionLength / 8.0f) * 8; + } + if (correctEncryptionLength != encryptionLength && userAgent != null) { + PDFEventProducer.Provider.get(userAgent.getEventBroadcaster()) + .incorrectEncryptionLength(this, encryptionLength, + correctEncryptionLength); + } + return correctEncryptionLength; + } + } + +} |