nmode's Git Repositories - signal-cli/blob - lib/src/main/java/org/asamk/signal/manager/util/StickerUtils.java

   1 package org.asamk.signal.manager.util;
   2
   3 import com.fasterxml.jackson.databind.ObjectMapper;
   4
   5 import org.asamk.signal.manager.JsonStickerPack;
   6 import org.asamk.signal.manager.StickerPackInvalidException;
   7 import org.whispersystems.libsignal.util.Pair;
   8 import org.whispersystems.libsignal.util.guava.Optional;
   9 import org.whispersystems.signalservice.api.messages.SignalServiceStickerManifestUpload;
  10
  11 import java.io.File;
  12 import java.io.FileInputStream;
  13 import java.io.IOException;
  14 import java.io.InputStream;
  15 import java.util.ArrayList;
  16 import java.util.List;
  17 import java.util.zip.ZipEntry;
  18 import java.util.zip.ZipFile;
  19
  20 public class StickerUtils {
  21
  22     public static SignalServiceStickerManifestUpload getSignalServiceStickerManifestUpload(
  23             final File file
  24     ) throws IOException, StickerPackInvalidException {
  25         ZipFile zip = null;
  26         String rootPath = null;
  27
  28         if (file.getName().endsWith(".zip")) {
  29             zip = new ZipFile(file);
  30         } else if (file.getName().equals("manifest.json")) {
  31             rootPath = file.getParent();
  32         } else {
  33             throw new StickerPackInvalidException("Could not find manifest.json");
  34         }
  35
  36         JsonStickerPack pack = parseStickerPack(rootPath, zip);
  37
  38         if (pack.stickers == null) {
  39             throw new StickerPackInvalidException("Must set a 'stickers' field.");
  40         }
  41
  42         if (pack.stickers.isEmpty()) {
  43             throw new StickerPackInvalidException("Must include stickers.");
  44         }
  45
  46         List<SignalServiceStickerManifestUpload.StickerInfo> stickers = new ArrayList<>(pack.stickers.size());
  47         for (JsonStickerPack.JsonSticker sticker : pack.stickers) {
  48             if (sticker.file == null) {
  49                 throw new StickerPackInvalidException("Must set a 'file' field on each sticker.");
  50             }
  51
  52             Pair<InputStream, Long> data;
  53             try {
  54                 data = getInputStreamAndLength(rootPath, zip, sticker.file);
  55             } catch (IOException ignored) {
  56                 throw new StickerPackInvalidException("Could not find find " + sticker.file);
  57             }
  58
  59             String contentType = Utils.getFileMimeType(new File(sticker.file), null);
  60             SignalServiceStickerManifestUpload.StickerInfo stickerInfo = new SignalServiceStickerManifestUpload.StickerInfo(
  61                     data.first(),
  62                     data.second(),
  63                     Optional.fromNullable(sticker.emoji).or(""),
  64                     contentType);
  65             stickers.add(stickerInfo);
  66         }
  67
  68         SignalServiceStickerManifestUpload.StickerInfo cover = null;
  69         if (pack.cover != null) {
  70             if (pack.cover.file == null) {
  71                 throw new StickerPackInvalidException("Must set a 'file' field on the cover.");
  72             }
  73
  74             Pair<InputStream, Long> data;
  75             try {
  76                 data = getInputStreamAndLength(rootPath, zip, pack.cover.file);
  77             } catch (IOException ignored) {
  78                 throw new StickerPackInvalidException("Could not find find " + pack.cover.file);
  79             }
  80
  81             String contentType = Utils.getFileMimeType(new File(pack.cover.file), null);
  82             cover = new SignalServiceStickerManifestUpload.StickerInfo(data.first(),
  83                     data.second(),
  84                     Optional.fromNullable(pack.cover.emoji).or(""),
  85                     contentType);
  86         }
  87
  88         return new SignalServiceStickerManifestUpload(pack.title, pack.author, cover, stickers);
  89     }
  90
  91     private static JsonStickerPack parseStickerPack(String rootPath, ZipFile zip) throws IOException {
  92         InputStream inputStream;
  93         if (zip != null) {
  94             inputStream = zip.getInputStream(zip.getEntry("manifest.json"));
  95         } else {
  96             inputStream = new FileInputStream((new File(rootPath, "manifest.json")));
  97         }
  98         return new ObjectMapper().readValue(inputStream, JsonStickerPack.class);
  99     }
 100
 101     private static Pair<InputStream, Long> getInputStreamAndLength(
 102             final String rootPath, final ZipFile zip, final String subfile
 103     ) throws IOException {
 104         if (zip != null) {
 105             final ZipEntry entry = zip.getEntry(subfile);
 106             return new Pair<>(zip.getInputStream(entry), entry.getSize());
 107         } else {
 108             final File file = new File(rootPath, subfile);
 109             return new Pair<>(new FileInputStream(file), file.length());
 110         }
 111     }
 112
 113 }