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[fanfix.git] / src / be / nikiroo / fanfix / supported / Cbz.java
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.util.ArrayList;
9 import java.util.Collections;
10 import java.util.HashMap;
11 import java.util.List;
12 import java.util.Map;
13 import java.util.zip.ZipEntry;
14 import java.util.zip.ZipInputStream;
15
16 import be.nikiroo.fanfix.Instance;
17 import be.nikiroo.fanfix.data.Chapter;
18 import be.nikiroo.fanfix.data.MetaData;
19 import be.nikiroo.fanfix.data.Paragraph;
20 import be.nikiroo.fanfix.data.Paragraph.ParagraphType;
21 import be.nikiroo.fanfix.data.Story;
22 import be.nikiroo.utils.IOUtils;
23 import be.nikiroo.utils.Image;
24 import be.nikiroo.utils.MarkableFileInputStream;
25 import be.nikiroo.utils.Progress;
26
27 /**
28 * Support class for CBZ files (works better with CBZ created with this program,
29 * as they have some metadata available).
30 *
31 * @author niki
32 */
33 class Cbz extends Epub {
34 @Override
35 protected boolean supports(URL url) {
36 return url.toString().toLowerCase().endsWith(".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 doProcess(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(true, pgMeta);
70 MetaData meta = story.getMeta();
71
72 pgMeta.done(); // 10%
73
74 File tmpDir = Instance.getTempFiles().createTempDir("info-text");
75 String basename = null;
76
77 Map<String, Image> images = new HashMap<String, Image>();
78 InputStream cbzIn = null;
79 ZipInputStream zipIn = null;
80 try {
81 cbzIn = new MarkableFileInputStream(new FileInputStream(
82 getSourceFileOriginal()));
83 zipIn = new ZipInputStream(cbzIn);
84 for (ZipEntry entry = zipIn.getNextEntry(); entry != null; entry = zipIn
85 .getNextEntry()) {
86 if (!entry.isDirectory()
87 && entry.getName().startsWith(getDataPrefix())) {
88 String entryLName = entry.getName().toLowerCase();
89 boolean imageEntry = false;
90 for (String ext : BasicSupportImages.getImageExt(false)) {
91 if (entryLName.endsWith(ext)) {
92 imageEntry = true;
93 }
94 }
95
96 if (imageEntry) {
97 String uuid = meta.getUuid() + "_" + entry.getName();
98 try {
99 images.put(uuid, new Image(zipIn));
100 } catch (Exception e) {
101 Instance.getTraceHandler().error(e);
102 }
103
104 if (pg.getProgress() < 85) {
105 pg.add(1);
106 }
107 } else if (entryLName.endsWith(".info")) {
108 basename = entryLName.substring(0, entryLName.length()
109 - ".info".length());
110 IOUtils.write(zipIn, new File(tmpDir, entryLName));
111 } else if (entryLName.endsWith(".txt")) {
112 IOUtils.write(zipIn, new File(tmpDir, entryLName));
113 }
114 }
115 }
116
117 pg.setProgress(85);
118
119 // ZIP order is not correct for us
120 List<String> imagesList = new ArrayList<String>(images.keySet());
121 Collections.sort(imagesList);
122
123 pg.setProgress(90);
124
125 // only the description is kept
126 Story origStory = getStoryFromTxt(tmpDir, basename);
127 if (origStory != null) {
128 if (origStory.getMeta().getCover() == null) {
129 origStory.getMeta().setCover(story.getMeta().getCover());
130 }
131 story.setMeta(origStory.getMeta());
132 }
133 story.setChapters(new ArrayList<Chapter>());
134
135 // Check if we can find non-images chapters, for hybrid-cbz support
136 for (Chapter chap : origStory) {
137 Boolean isImages = null;
138 for (Paragraph para : chap) {
139 ParagraphType t = para.getType();
140 if (isImages == null && !t.isText(true)) {
141 isImages = true;
142 }
143 if (t.isText(false)) {
144 String line = para.getContent();
145 // Images are saved in text mode as "[image-link]"
146 if (!(line.startsWith("[") && line.endsWith("]"))) {
147 isImages = false;
148 }
149 }
150 }
151
152 if (isImages != null && !isImages) {
153 story.getChapters().add(chap);
154 chap.setNumber(story.getChapters().size());
155 }
156 }
157
158 if (!imagesList.isEmpty()) {
159 Chapter chap = new Chapter(story.getChapters().size() + 1, null);
160 story.getChapters().add(chap);
161
162 for (String uuid : imagesList) {
163 try {
164 chap.getParagraphs().add(
165 new Paragraph(images.get(uuid)));
166 } catch (Exception e) {
167 Instance.getTraceHandler().error(e);
168 }
169 }
170 }
171
172 if (meta.getCover() == null && !images.isEmpty()) {
173 meta.setCover(images.get(imagesList.get(0)));
174 meta.setFakeCover(true);
175 }
176 } finally {
177 IOUtils.deltree(tmpDir);
178 if (zipIn != null) {
179 zipIn.close();
180 }
181 if (cbzIn != null) {
182 cbzIn.close();
183 }
184 }
185
186 pg.setProgress(100);
187 return story;
188 }
189
190 private Story getStoryFromTxt(File tmpDir, String basename) {
191 Story origStory = null;
192
193 File txt = new File(tmpDir, basename + ".txt");
194 if (!txt.exists()) {
195 basename = null;
196 }
197 if (basename != null) {
198 try {
199 BasicSupport support = BasicSupport.getSupport(txt.toURI()
200 .toURL());
201 origStory = support.process(null);
202 } catch (Exception e) {
203 basename = null;
204 }
205 }
206
207 return origStory;
208
209 }
210 }