[TIKA-879] Detection problem: message/rfc822 file is detected as text/plain.

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Duplicate
• Affects Version/s: 1.0, 1.1, 1.2
• Fix Version/s: 1.18, 2.0.0
• Component/s: metadata, mime
• Labels: new-parser

Environment

linux 3.2.9
oracle jdk7, openjdk7, sun jdk6

• Assignee: Unassigned
• Reporter: Konstantin Gribov
• Created: 21/Mar/12 13:44
• Updated: 12/Apr/21 13:01
• Resolved: 08/Mar/18 22:56

Description

When using DefaultDetector mime type for .eml files is different (you can test it on testRFC822 and testRFC822_base64 in tika-parsers/src/test/resources/test-documents/).

Main reason for such behavior is that only magic detector is really works for such files. Even if you set CONTENT_TYPE in metadata or some .eml file name in RESOURCE_NAME_KEY.

As I found MediaTypeRegistry.isSpecializationOf("message/rfc822", "text/plain") returns false, so detection by MimeTypes.detect(...) works only by magic.

Issue Links

• is duplicated by: TIKA-2578 Mails not recognized when unknown X-headers are present
• is duplicated by: TIKA-2594 Mail detected as application/xhtml+xml
• is duplicated by: TIKA-1602 Detecting standards-non-compliant emails as message/rfc822
• relates to: TIKA-2042 MBOX file detected wrongly as text/html