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eInvoicing
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Reading a message part's media type only once

This commit is contained in:
dankito 2024-11-21 20:28:14 +01:00
parent 6b82636fdd
commit 399581da78
1 changed files with 25 additions and 17 deletions
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42
e-invoicing-domain/src/main/kotlin/net/codinux/invoicing/mail/MailReader.kt
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@ -23,6 +23,12 @@ class MailReader(
private val eInvoiceReader: EInvoiceReader = EInvoiceReader()
) {
private data class MessagePart(
val mediaType: String,
val part: Part
)
private val mailDispatcher = Executors.newCachedThreadPool().asCoroutineDispatcher()
private val log by logger()
@ -116,9 +122,7 @@ class MailReader(
return null
}
private fun getAllMessageParts(part: Part): List<Part> {
contentClasses.add(part.content?.let { it::class })
private fun getAllMessageParts(part: Part): List<MessagePart> {
return if (part.isMimeType("multipart/*")) {
val multipart = part.content as Multipart
val parts = IntRange(0, multipart.count - 1).map { multipart.getBodyPart(it) }
@ -127,28 +131,32 @@ class MailReader(
getAllMessageParts(subPart)
}
} else {
listOf(part)
val mediaType = getMediaType(part)
if (mediaType == null) {
log.warn { "Could not determine media type of message part $part" }
emptyList()
} else {
listOf(MessagePart(mediaType, part))
}
}
}
private fun findEInvoice(part: Part): MailAttachmentWithEInvoice? {
private fun findEInvoice(messagePart: MessagePart): MailAttachmentWithEInvoice? {
try {
if (Part.ATTACHMENT.equals(part.disposition, true)) { // TODO: what about Part.INLINE?
val mediaType = getMediaType(part)?.lowercase()
val invoice = tryToReadEInvoice(part, mediaType)
val part = messagePart.part
val invoice = tryToReadEInvoice(part, messagePart.mediaType)
if (invoice != null) {
val filename = File(part.fileName)
val file = File.createTempFile(filename.nameWithoutExtension, "." + filename.extension).also { file ->
part.inputStream.use { it.copyTo(file.outputStream()) }
file.deleteOnExit()
}
return MailAttachmentWithEInvoice(part.fileName, mediaType, invoice, file)
if (invoice != null) {
val filename = File(part.fileName)
val file = File.createTempFile(filename.nameWithoutExtension, "." + filename.extension).also { file ->
part.inputStream.use { it.copyTo(file.outputStream()) }
file.deleteOnExit()
}
return MailAttachmentWithEInvoice(part.fileName, messagePart.mediaType, invoice, file)
}
} catch (e: Throwable) {
log.error(e) { "Could not check attachment '${part.fileName}' for eInvoice" }
log.error(e) { "Could not check attachment '${messagePart.part.fileName}' (${messagePart.mediaType}) for eInvoice" }
}
return null