src/be/nikiroo/fanfix/supported/Cbz.java

   1 package be.nikiroo.fanfix.supported;
   2
   3 import java.io.File;
   4 import java.io.IOException;
   5 import java.net.URL;
   6 import java.util.ArrayList;
   7 import java.util.Collections;
   8 import java.util.HashMap;
   9 import java.util.List;
  10 import java.util.Map;
  11 import java.util.zip.ZipEntry;
  12 import java.util.zip.ZipInputStream;
  13
  14 import be.nikiroo.fanfix.Instance;
  15 import be.nikiroo.fanfix.data.Chapter;
  16 import be.nikiroo.fanfix.data.Paragraph;
  17 import be.nikiroo.fanfix.data.Story;
  18 import be.nikiroo.utils.IOUtils;
  19 import be.nikiroo.utils.Image;
  20 import be.nikiroo.utils.Progress;
  21
  22 /**
  23  * Support class for CBZ files (works better with CBZ created with this program,
  24  * as they have some metadata available).
  25  *
  26  * @author niki
  27  */
  28 class Cbz extends Epub {
  29         @Override
  30         protected boolean supports(URL url) {
  31                 return url.toString().toLowerCase().endsWith(".cbz");
  32         }
  33
  34         @Override
  35         public String getSourceName() {
  36                 return "cbz";
  37         }
  38
  39         @Override
  40         protected String getDataPrefix() {
  41                 return "";
  42         }
  43
  44         @Override
  45         protected boolean requireInfo() {
  46                 return false;
  47         }
  48
  49         @Override
  50         protected boolean isImagesDocumentByDefault() {
  51                 return true;
  52         }
  53
  54         @Override
  55         protected boolean getCover() {
  56                 return false;
  57         }
  58
  59         @Override
  60         public Story process(URL url, Progress pg) throws IOException {
  61                 if (pg == null) {
  62                         pg = new Progress();
  63                 } else {
  64                         pg.setMinMax(0, 100);
  65                 }
  66
  67                 Progress pgMeta = new Progress();
  68                 pg.addProgress(pgMeta, 10);
  69                 Story story = processMeta(url, false, true, pgMeta);
  70                 pgMeta.done(); // 10%
  71
  72                 File tmpDir = Instance.getTempFiles().createTempDir("info-text");
  73                 String basename = null;
  74
  75                 Map<String, Image> images = new HashMap<String, Image>();
  76                 try {
  77                         ZipInputStream zipIn = new ZipInputStream(getInput());
  78                         for (ZipEntry entry = zipIn.getNextEntry(); entry != null; entry = zipIn
  79                                         .getNextEntry()) {
  80                                 if (!entry.isDirectory()
  81                                                 && entry.getName().startsWith(getDataPrefix())) {
  82                                         String entryLName = entry.getName().toLowerCase();
  83                                         boolean imageEntry = false;
  84                                         for (String ext : getImageExt(false)) {
  85                                                 if (entryLName.endsWith(ext)) {
  86                                                         imageEntry = true;
  87                                                 }
  88                                         }
  89
  90                                         if (imageEntry) {
  91                                                 String uuid = meta.getUuid() + "_" + entry.getName();
  92                                                 try {
  93                                                         images.put(uuid, new Image(zipIn));
  94                                                 } catch (Exception e) {
  95                                                         Instance.getTraceHandler().error(e);
  96                                                 }
  97
  98                                                 if (pg.getProgress() < 85) {
  99                                                         pg.add(1);
 100                                                 }
 101                                         } else if (entryLName.endsWith(".info")) {
 102                                                 basename = entryLName.substring(0, entryLName.length()
 103                                                                 - ".info".length());
 104                                                 IOUtils.write(zipIn, new File(tmpDir, entryLName));
 105                                         } else if (entryLName.endsWith(".txt")) {
 106                                                 IOUtils.write(zipIn, new File(tmpDir, entryLName));
 107                                         }
 108                                 }
 109                         }
 110
 111                         pg.setProgress(85);
 112
 113                         // ZIP order is not correct for us
 114                         List<String> imagesList = new ArrayList<String>(images.keySet());
 115                         Collections.sort(imagesList);
 116
 117                         pg.setProgress(90);
 118
 119                         File txt = new File(tmpDir, basename + ".txt");
 120                         if (!txt.exists()) {
 121                                 basename = null;
 122                         }
 123                         if (basename != null) {
 124                                 try {
 125                                         BasicSupport support = BasicSupport.getSupport(txt.toURI()
 126                                                         .toURL());
 127                                         Story origStory = support.process(null);
 128                                         story.setChapters(origStory.getChapters());
 129                                         story.setMeta(origStory.getMeta());
 130                                 } catch (Exception e) {
 131                                         basename = null;
 132                                 }
 133                         }
 134
 135                         if (basename == null) {
 136                                 story.setChapters(new ArrayList<Chapter>());
 137                         }
 138
 139                         if (!imagesList.isEmpty()) {
 140                                 Chapter chap = new Chapter(story.getChapters().size() + 1, null);
 141                                 story.getChapters().add(chap);
 142
 143                                 for (String uuid : imagesList) {
 144                                         try {
 145                                                 chap.getParagraphs().add(
 146                                                                 new Paragraph(images.get(uuid)));
 147                                         } catch (Exception e) {
 148                                                 Instance.getTraceHandler().error(e);
 149                                         }
 150                                 }
 151                         }
 152
 153                         if (meta.getCover() == null && !images.isEmpty()) {
 154                                 meta.setCover(images.get(imagesList.get(0)));
 155                                 meta.setFakeCover(true);
 156                         }
 157
 158                 } finally {
 159                         IOUtils.deltree(tmpDir);
 160                 }
 161
 162                 pg.setProgress(100);
 163                 return story;
 164         }
 165 }