Scriptrunner special characters in attachment's filename encoding

[Lukáš Meitner]

Hi guys,

I am trying to synchronize attachments between two instances. I have this code:

def attachment = get("https://jira.atlassian.net/rest/api/3/attachment/content/{attachmentId}") // get the content binary data
.basicAuth("e-mail@address.com", "token")
.asBinary()
.body

def attachmentData = get("https://jira.atlassian.net/rest/api/3/attachment/{attachmentId}") // get the attachment metadata
.basicAuth("e-mail@address.com", "token")
.asObject(Map)
.body

def fileName = attachmentData['filename'] as String

InputStream stream = new ByteArrayInputStream(attachment.getBytes()) // create a file to send

def sendAttachment = post("/rest/api/3/issue/{issueID}/attachments")
.header("Accept", "application/json")
.header("X-Atlassian-Token", "no-check")
.field("file", stream, fileName)
.asJson()

I can upload the attachment into an issue, but if it's name contains special character like "Český jazyk.txt" it will replace the characters by "?", so the name of created attachment will be "?esk? jazyk.txt". And this is the problem I need to resolve.

Many thanks for any suggestions.

Lukas