| 1 | package be.nikiroo.fanfix.supported; |
| 2 | |
| 3 | import java.io.File; |
| 4 | import java.io.FileInputStream; |
| 5 | import java.io.IOException; |
| 6 | import java.io.InputStream; |
| 7 | import java.net.URL; |
| 8 | import java.net.URLDecoder; |
| 9 | import java.util.ArrayList; |
| 10 | import java.util.List; |
| 11 | import java.util.Map.Entry; |
| 12 | import java.util.zip.ZipEntry; |
| 13 | import java.util.zip.ZipInputStream; |
| 14 | |
| 15 | import be.nikiroo.fanfix.Instance; |
| 16 | import be.nikiroo.fanfix.data.MetaData; |
| 17 | import be.nikiroo.utils.IOUtils; |
| 18 | import be.nikiroo.utils.Image; |
| 19 | import be.nikiroo.utils.MarkableFileInputStream; |
| 20 | import be.nikiroo.utils.Progress; |
| 21 | import be.nikiroo.utils.StringUtils; |
| 22 | |
| 23 | /** |
| 24 | * Support class for EPUB files created with this program (as we need some |
| 25 | * metadata available in those we create). |
| 26 | * |
| 27 | * @author niki |
| 28 | */ |
| 29 | class Epub extends InfoText { |
| 30 | protected MetaData meta; |
| 31 | private File tmp; |
| 32 | private String desc; |
| 33 | |
| 34 | private URL fakeSource; |
| 35 | private InputStream fakeIn; |
| 36 | |
| 37 | @Override |
| 38 | public String getSourceName() { |
| 39 | return "epub"; |
| 40 | } |
| 41 | |
| 42 | @Override |
| 43 | protected boolean supports(URL url) { |
| 44 | if (url.getPath().toLowerCase().endsWith(".epub")) { |
| 45 | return true; |
| 46 | } |
| 47 | |
| 48 | return false; |
| 49 | } |
| 50 | |
| 51 | @Override |
| 52 | protected MetaData getMeta(URL source, InputStream in) throws IOException { |
| 53 | return meta; |
| 54 | } |
| 55 | |
| 56 | @Override |
| 57 | protected String getDesc(URL source, InputStream in) throws IOException { |
| 58 | if (desc != null) { |
| 59 | return desc; |
| 60 | } |
| 61 | |
| 62 | if (fakeIn != null) { |
| 63 | fakeIn.reset(); |
| 64 | return super.getDesc(fakeSource, fakeIn); |
| 65 | } |
| 66 | |
| 67 | return null; |
| 68 | } |
| 69 | |
| 70 | @Override |
| 71 | protected List<Entry<String, URL>> getChapters(URL source, InputStream in, |
| 72 | Progress pg) throws IOException { |
| 73 | if (fakeIn != null) { |
| 74 | fakeIn.reset(); |
| 75 | return super.getChapters(fakeSource, fakeIn, pg); |
| 76 | } |
| 77 | |
| 78 | return null; |
| 79 | } |
| 80 | |
| 81 | @Override |
| 82 | protected String getChapterContent(URL source, InputStream in, int number, |
| 83 | Progress pg) throws IOException { |
| 84 | if (fakeIn != null) { |
| 85 | fakeIn.reset(); |
| 86 | return super.getChapterContent(fakeSource, fakeIn, number, pg); |
| 87 | } |
| 88 | |
| 89 | return null; |
| 90 | } |
| 91 | |
| 92 | @Override |
| 93 | protected void preprocess(URL source, InputStream in) throws IOException { |
| 94 | // Note: do NOT close this stream, as it would also close "in" |
| 95 | ZipInputStream zipIn = new ZipInputStream(in); |
| 96 | tmp = File.createTempFile("fanfic-reader-parser_", ".tmp"); |
| 97 | File tmpInfo = new File(tmp + ".info"); |
| 98 | fakeSource = tmp.toURI().toURL(); |
| 99 | Image cover = null; |
| 100 | |
| 101 | String url = source.toString(); |
| 102 | String title = null; |
| 103 | String author = null; |
| 104 | |
| 105 | for (ZipEntry entry = zipIn.getNextEntry(); entry != null; entry = zipIn |
| 106 | .getNextEntry()) { |
| 107 | if (!entry.isDirectory() |
| 108 | && entry.getName().startsWith(getDataPrefix())) { |
| 109 | String entryLName = entry.getName().toLowerCase(); |
| 110 | |
| 111 | boolean imageEntry = false; |
| 112 | for (String ext : getImageExt(false)) { |
| 113 | if (entryLName.endsWith(ext)) { |
| 114 | imageEntry = true; |
| 115 | } |
| 116 | } |
| 117 | |
| 118 | if (entry.getName().equals(getDataPrefix() + "version")) { |
| 119 | // Nothing to do for now ("first" |
| 120 | // version is 3.0) |
| 121 | } else if (entryLName.endsWith(".info")) { |
| 122 | // Info file |
| 123 | IOUtils.write(zipIn, tmpInfo); |
| 124 | } else if (imageEntry) { |
| 125 | // Cover |
| 126 | if (getCover()) { |
| 127 | try { |
| 128 | cover = new Image(zipIn); |
| 129 | } catch (Exception e) { |
| 130 | Instance.getTraceHandler().error(e); |
| 131 | } |
| 132 | } |
| 133 | } else if (entry.getName().equals(getDataPrefix() + "URL")) { |
| 134 | String[] descArray = StringUtils |
| 135 | .unhtml(IOUtils.readSmallStream(zipIn)).trim() |
| 136 | .split("\n"); |
| 137 | if (descArray.length > 0) { |
| 138 | url = descArray[0].trim(); |
| 139 | } |
| 140 | } else if (entry.getName().equals(getDataPrefix() + "SUMMARY")) { |
| 141 | String[] descArray = StringUtils |
| 142 | .unhtml(IOUtils.readSmallStream(zipIn)).trim() |
| 143 | .split("\n"); |
| 144 | int skip = 0; |
| 145 | if (descArray.length > 1) { |
| 146 | title = descArray[0].trim(); |
| 147 | skip = 1; |
| 148 | if (descArray.length > 2 |
| 149 | && descArray[1].startsWith("©")) { |
| 150 | author = descArray[1].substring(1).trim(); |
| 151 | skip = 2; |
| 152 | } |
| 153 | } |
| 154 | this.desc = ""; |
| 155 | for (int i = skip; i < descArray.length; i++) { |
| 156 | this.desc += descArray[i].trim() + "\n"; |
| 157 | } |
| 158 | |
| 159 | this.desc = this.desc.trim(); |
| 160 | } else { |
| 161 | // Hopefully the data file |
| 162 | IOUtils.write(zipIn, tmp); |
| 163 | } |
| 164 | } |
| 165 | } |
| 166 | |
| 167 | if (requireInfo() && (!tmp.exists() || !tmpInfo.exists())) { |
| 168 | throw new IOException( |
| 169 | "file not supported (maybe not created with this program or corrupt)"); |
| 170 | } |
| 171 | |
| 172 | if (tmp.exists()) { |
| 173 | this.fakeIn = new MarkableFileInputStream(new FileInputStream(tmp)); |
| 174 | } |
| 175 | |
| 176 | if (tmpInfo.exists()) { |
| 177 | meta = InfoReader.readMeta(tmpInfo, true); |
| 178 | if (cover != null) { |
| 179 | meta.setCover(cover); |
| 180 | } |
| 181 | tmpInfo.delete(); |
| 182 | } else { |
| 183 | if (title == null || title.isEmpty()) { |
| 184 | title = new File(source.getPath()).getName(); |
| 185 | if (title.toLowerCase().endsWith(".cbz")) { |
| 186 | title = title.substring(0, title.length() - 4); |
| 187 | } |
| 188 | title = URLDecoder.decode(title, "UTF-8").trim(); |
| 189 | } |
| 190 | |
| 191 | meta = new MetaData(); |
| 192 | meta.setLang("EN"); |
| 193 | meta.setTags(new ArrayList<String>()); |
| 194 | meta.setSource(getSourceName()); |
| 195 | meta.setUuid(url); |
| 196 | meta.setUrl(url); |
| 197 | meta.setTitle(title); |
| 198 | meta.setAuthor(author); |
| 199 | } |
| 200 | } |
| 201 | |
| 202 | @Override |
| 203 | protected void close() { |
| 204 | if (tmp != null && tmp.exists()) { |
| 205 | if (!tmp.delete()) { |
| 206 | tmp.deleteOnExit(); |
| 207 | } |
| 208 | } |
| 209 | |
| 210 | tmp = null; |
| 211 | |
| 212 | if (fakeIn != null) { |
| 213 | try { |
| 214 | fakeIn.close(); |
| 215 | } catch (Exception e) { |
| 216 | Instance.getTraceHandler().error(e); |
| 217 | } |
| 218 | } |
| 219 | |
| 220 | super.close(); |
| 221 | } |
| 222 | |
| 223 | protected String getDataPrefix() { |
| 224 | return "DATA/"; |
| 225 | } |
| 226 | |
| 227 | protected boolean requireInfo() { |
| 228 | return true; |
| 229 | } |
| 230 | |
| 231 | protected boolean getCover() { |
| 232 | return true; |
| 233 | } |
| 234 | } |