feat: better management of book analysis errors

komga-webui/src/components/BrowseBook.vue

@@ -84,16 +84,17 @@
         <v-col cols="10" class="body-2">{{ book.size }}</v-col>
       </v-row>
 
+      <v-row v-if="book.media.comment">
+        <v-col cols="2" md="1" lg="1" xl="1" class="body-2">COMMENT</v-col>
+        <v-col cols="10" class="body-2">
+          <span class="error--text font-weight-bold">{{ book.media.comment }}</span>
+        </v-col>
+      </v-row>
+
       <v-row>
         <v-col cols="2" md="1" lg="1" xl="1" class="body-2">FORMAT</v-col>
         <v-col cols="10" class="body-2">
-          <template v-if="book.media.status === 'ERROR'">
-            <span class="error--text font-weight-bold">Book analysis failed</span>
-          </template>
-          <template v-else-if="book.media.status === 'UNSUPPORTED'">
-            <span class="error--text font-weight-bold">File type not supported: {{ book.media.mediaType }}</span>
-          </template>
-          <template v-else>{{ format.type }}</template>
+          <span>{{ format.type }}</span>
         </v-col>
       </v-row>
 

komga-webui/src/types/komga-books.ts

@@ -13,7 +13,8 @@ interface BookDto {
 interface MediaDto {
   status: string,
   mediaType: string,
-  pagesCount: number
+  pagesCount: number,
+  comment: string
 }
 
 interface PageDto {

komga/src/main/kotlin/org/gotson/komga/domain/model/Exceptions.kt

@@ -1,8 +1,7 @@
 package org.gotson.komga.domain.model
 
 class MediaNotReadyException : Exception()
-class EmptyBookException(val mediaType: String) : Exception()
-class UnsupportedMediaTypeException(message: String, val mediaType: String) : Exception(message)
+class ImageConversionException(message: String) : Exception(message)
 class DirectoryNotFoundException(message: String) : Exception(message)
 class DuplicateNameException(message: String) : Exception(message)
 class PathContainedInPath(message: String) : Exception(message)

komga/src/main/kotlin/org/gotson/komga/domain/model/Media.kt

@@ -37,7 +37,10 @@ class Media(
     @Lob
     var thumbnail: ByteArray? = null,
 
-    pages: Iterable<BookPage> = emptyList()
+    pages: Iterable<BookPage> = emptyList(),
+
+    @Column(name = "comment")
+    var comment: String? = null
 ) : AuditableEntity() {
   @Id
   @GeneratedValue

komga/src/main/kotlin/org/gotson/komga/domain/service/BookAnalyzer.kt

@@ -4,10 +4,8 @@ import mu.KotlinLogging
 import net.coobird.thumbnailator.Thumbnails
 import net.greypanther.natsort.CaseInsensitiveSimpleNaturalComparator
 import org.gotson.komga.domain.model.Book
-import org.gotson.komga.domain.model.EmptyBookException
 import org.gotson.komga.domain.model.Media
 import org.gotson.komga.domain.model.MediaNotReadyException
-import org.gotson.komga.domain.model.UnsupportedMediaTypeException
 import org.gotson.komga.infrastructure.archive.ContentDetector
 import org.gotson.komga.infrastructure.archive.PdfExtractor
 import org.gotson.komga.infrastructure.archive.RarExtractor
@@ -37,21 +35,25 @@ class BookAnalyzer(
   private val thumbnailSize = 300
   private val thumbnailFormat = "jpeg"
 
-  @Throws(
-    UnsupportedMediaTypeException::class,
-    EmptyBookException::class
-  )
   fun analyze(book: Book): Media {
     logger.info { "Trying to analyze book: $book" }
 
     val mediaType = contentDetector.detectMediaType(book.path())
     logger.info { "Detected media type: $mediaType" }
     if (!supportedMediaTypes.keys.contains(mediaType))
-      throw UnsupportedMediaTypeException("Unsupported mime type: $mediaType. File: $book", mediaType)
+      return Media(mediaType = mediaType, status = Media.Status.UNSUPPORTED, comment = "Media type $mediaType is not supported")
 
-    val pages = supportedMediaTypes.getValue(mediaType).getPagesList(book.path())
-      .sortedWith(compareBy(natSortComparator) { it.fileName })
-    if (pages.isEmpty()) throw EmptyBookException(mediaType)
+    val pages = try {
+      supportedMediaTypes.getValue(mediaType).getPagesList(book.path()).sortedWith(compareBy(natSortComparator) { it.fileName })
+    } catch (ex: Exception) {
+      logger.error(ex) { "Error while analyzing book: $book" }
+      return Media(mediaType = mediaType, status = Media.Status.ERROR, comment = ex.message)
+    }
+
+    if (pages.isEmpty()) {
+      logger.warn { "Book $book does not contain any pages" }
+      return Media(mediaType = mediaType, status = Media.Status.ERROR, comment = "Book does not contain any pages")
+    }
     logger.info { "Book has ${pages.size} pages" }
 
     logger.info { "Trying to generate cover for book: $book" }

komga/src/main/kotlin/org/gotson/komga/domain/service/BookLifecycle.kt

@@ -4,10 +4,9 @@ import mu.KotlinLogging
 import org.apache.commons.lang3.time.DurationFormatUtils
 import org.gotson.komga.domain.model.Book
 import org.gotson.komga.domain.model.BookPageContent
-import org.gotson.komga.domain.model.EmptyBookException
+import org.gotson.komga.domain.model.ImageConversionException
 import org.gotson.komga.domain.model.Media
 import org.gotson.komga.domain.model.MediaNotReadyException
-import org.gotson.komga.domain.model.UnsupportedMediaTypeException
 import org.gotson.komga.domain.persistence.BookRepository
 import org.gotson.komga.infrastructure.image.ImageConverter
 import org.gotson.komga.infrastructure.image.ImageType
@@ -34,15 +33,9 @@ class BookLifecycle(
     return AsyncResult(measureTimeMillis {
       try {
         book.media = bookAnalyzer.analyze(book)
-      } catch (ex: UnsupportedMediaTypeException) {
-        logger.warn { "Unsupported media type: ${ex.mediaType}. Book: $book" }
-        book.media = Media(status = Media.Status.UNSUPPORTED, mediaType = ex.mediaType)
-      } catch (ex: EmptyBookException) {
-        logger.warn { "Book does not contain any images: $book" }
-        book.media = Media(status = Media.Status.ERROR, mediaType = ex.mediaType)
       } catch (ex: Exception) {
-        logger.error(ex) { "Error while parsing. Book: $book" }
-        book.media = Media(status = Media.Status.ERROR)
+        logger.error(ex) { "Error while analyzing book: $book" }
+        book.media = Media(status = Media.Status.ERROR, comment = ex.message)
       }
       bookRepository.save(book)
     }.also { logger.info { "Parsing finished in ${DurationFormatUtils.formatDurationHMS(it)}" } })
@@ -64,9 +57,9 @@ class BookLifecycle(
   }
 
   @Throws(
-      UnsupportedMediaTypeException::class,
-      MediaNotReadyException::class,
-      IndexOutOfBoundsException::class
+    ImageConversionException::class,
+    MediaNotReadyException::class,
+    IndexOutOfBoundsException::class
   )
   fun getBookPage(book: Book, number: Int, convertTo: ImageType? = null): BookPageContent {
     val pageContent = bookAnalyzer.getPageContent(book, number)
@@ -75,10 +68,10 @@ class BookLifecycle(
     convertTo?.let {
       val msg = "Convert page #$number of book $book from $pageMediaType to ${it.mediaType}"
       if (!imageConverter.supportedReadMediaTypes.contains(pageMediaType)) {
-        throw UnsupportedMediaTypeException("$msg: unsupported read format $pageMediaType", pageMediaType)
+        throw ImageConversionException("$msg: unsupported read format $pageMediaType")
       }
       if (!imageConverter.supportedWriteMediaTypes.contains(it.mediaType)) {
-        throw UnsupportedMediaTypeException("$msg: unsupported cannot write format ${it.mediaType}", it.mediaType)
+        throw ImageConversionException("$msg: unsupported write format ${it.mediaType}")
       }
       if (pageMediaType == it.mediaType) {
         logger.warn { "$msg: same format, no need for conversion" }

komga/src/main/kotlin/org/gotson/komga/interfaces/rest/BookController.kt

@@ -4,6 +4,7 @@ import com.github.klinq.jpaspec.`in`
 import com.github.klinq.jpaspec.likeLower
 import mu.KotlinLogging
 import org.gotson.komga.domain.model.Book
+import org.gotson.komga.domain.model.ImageConversionException
 import org.gotson.komga.domain.model.Media
 import org.gotson.komga.domain.model.MediaNotReadyException
 import org.gotson.komga.domain.persistence.BookRepository
@@ -227,6 +228,8 @@ class BookController(
           .body(pageContent.content)
       } catch (ex: IndexOutOfBoundsException) {
         throw ResponseStatusException(HttpStatus.BAD_REQUEST, "Page number does not exist")
+      } catch (ex: ImageConversionException) {
+        throw ResponseStatusException(HttpStatus.NOT_FOUND, ex.message)
       } catch (ex: MediaNotReadyException) {
         throw ResponseStatusException(HttpStatus.NOT_FOUND, "Book analysis failed")
       } catch (ex: NoSuchFileException) {

komga/src/main/kotlin/org/gotson/komga/interfaces/rest/Dto.kt

@@ -9,84 +9,87 @@ import java.time.ZoneId
 import java.time.ZoneOffset
 
 data class SeriesDto(
-    val id: Long,
-    val libraryId: Long,
-    val name: String,
-    val url: String,
-    @JsonFormat(pattern = "yyyy-MM-dd'T'HH:mm:ss")
-    val created: LocalDateTime?,
-    @JsonFormat(pattern = "yyyy-MM-dd'T'HH:mm:ss")
-    val lastModified: LocalDateTime?,
-    @JsonFormat(pattern = "yyyy-MM-dd'T'HH:mm:ss")
-    val fileLastModified: LocalDateTime,
-    val booksCount: Int
+  val id: Long,
+  val libraryId: Long,
+  val name: String,
+  val url: String,
+  @JsonFormat(pattern = "yyyy-MM-dd'T'HH:mm:ss")
+  val created: LocalDateTime?,
+  @JsonFormat(pattern = "yyyy-MM-dd'T'HH:mm:ss")
+  val lastModified: LocalDateTime?,
+  @JsonFormat(pattern = "yyyy-MM-dd'T'HH:mm:ss")
+  val fileLastModified: LocalDateTime,
+  val booksCount: Int
 )
 
 fun Series.toDto(includeUrl: Boolean) = SeriesDto(
-    id = id,
-    libraryId = library.id,
-    name = name,
-    url = if (includeUrl) url.toURI().path else "",
-    created = createdDate?.toUTC(),
-    lastModified = lastModifiedDate?.toUTC(),
-    fileLastModified = fileLastModified.toUTC(),
-    booksCount = books.size
+  id = id,
+  libraryId = library.id,
+  name = name,
+  url = if (includeUrl) url.toURI().path else "",
+  created = createdDate?.toUTC(),
+  lastModified = lastModifiedDate?.toUTC(),
+  fileLastModified = fileLastModified.toUTC(),
+  booksCount = books.size
 )
 
 data class BookDto(
-    val id: Long,
-    val seriesId: Long,
-    val name: String,
-    val url: String,
-    val number: Float,
-    @JsonFormat(pattern = "yyyy-MM-dd'T'HH:mm:ss")
-    val created: LocalDateTime?,
-    @JsonFormat(pattern = "yyyy-MM-dd'T'HH:mm:ss")
-    val lastModified: LocalDateTime?,
-    @JsonFormat(pattern = "yyyy-MM-dd'T'HH:mm:ss")
-    val fileLastModified: LocalDateTime,
-    val sizeBytes: Long,
-    val size: String,
-    @Deprecated("Deprecated since 0.10", ReplaceWith("media"))
-    val metadata: MediaDto,
-    val media: MediaDto
+  val id: Long,
+  val seriesId: Long,
+  val name: String,
+  val url: String,
+  val number: Float,
+  @JsonFormat(pattern = "yyyy-MM-dd'T'HH:mm:ss")
+  val created: LocalDateTime?,
+  @JsonFormat(pattern = "yyyy-MM-dd'T'HH:mm:ss")
+  val lastModified: LocalDateTime?,
+  @JsonFormat(pattern = "yyyy-MM-dd'T'HH:mm:ss")
+  val fileLastModified: LocalDateTime,
+  val sizeBytes: Long,
+  val size: String,
+  @Deprecated("Deprecated since 0.10", ReplaceWith("media"))
+  val metadata: MediaDto,
+  val media: MediaDto
 )
 
 data class MediaDto(
-    val status: String,
-    val mediaType: String,
-    val pagesCount: Int
+  val status: String,
+  val mediaType: String,
+  val pagesCount: Int,
+  val comment: String
 )
 
 fun Book.toDto(includeFullUrl: Boolean) =
-    BookDto(
-        id = id,
-        seriesId = series.id,
-        name = name,
-        url = if (includeFullUrl) url.toURI().path else FilenameUtils.getName(url.toURI().path),
-        number = number,
-        created = createdDate?.toUTC(),
-        lastModified = lastModifiedDate?.toUTC(),
-        fileLastModified = fileLastModified.toUTC(),
-        sizeBytes = fileSize,
-        size = fileSizeHumanReadable(),
-        metadata = MediaDto(
-            status = media.status.toString(),
-            mediaType = media.mediaType ?: "",
-            pagesCount = media.pages.size
-        ),
-        media = MediaDto(
-            status = media.status.toString(),
-            mediaType = media.mediaType ?: "",
-            pagesCount = media.pages.size
-        )
+  BookDto(
+    id = id,
+    seriesId = series.id,
+    name = name,
+    url = if (includeFullUrl) url.toURI().path else FilenameUtils.getName(url.toURI().path),
+    number = number,
+    created = createdDate?.toUTC(),
+    lastModified = lastModifiedDate?.toUTC(),
+    fileLastModified = fileLastModified.toUTC(),
+    sizeBytes = fileSize,
+    size = fileSizeHumanReadable(),
+    metadata = MediaDto(
+      status = media.status.toString(),
+      mediaType = media.mediaType ?: "",
+      pagesCount = media.pages.size,
+      comment = media.comment ?: ""
+    ),
+    media = MediaDto(
+      status = media.status.toString(),
+      mediaType = media.mediaType ?: "",
+      pagesCount = media.pages.size,
+      comment = media.comment ?: ""
     )
+  )
 
 data class PageDto(
-    val number: Int,
-    val fileName: String,
-    val mediaType: String
+  val number: Int,
+  val fileName: String,
+  val mediaType: String
 )
 
 fun LocalDateTime.toUTC(): LocalDateTime =
-    atZone(ZoneId.systemDefault()).withZoneSameInstant(ZoneOffset.UTC).toLocalDateTime()
+  atZone(ZoneId.systemDefault()).withZoneSameInstant(ZoneOffset.UTC).toLocalDateTime()

komga/src/main/resources/db/migration/V20200108103325__media_comment.sql

@@ -0,0 +1,2 @@
+alter table media
+    add (comment varchar);