489 lines
17 KiB
Rust
489 lines
17 KiB
Rust
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//! Email extraction integration tests.
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//!
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//! Tests for .eml (RFC822) email extraction.
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//! Validates metadata extraction, content extraction, HTML/plain text handling, and attachments.
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#![cfg(feature = "email")]
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use kreuzberg::core::config::ExtractionConfig;
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use kreuzberg::core::extractor::extract_bytes;
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mod helpers;
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/// Test basic EML extraction with subject, from, to, and body.
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#[tokio::test]
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async fn test_eml_basic_extraction() {
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let config = ExtractionConfig::default();
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let eml_content = b"From: sender@example.com\r\n\
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To: recipient@example.com\r\n\
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Subject: Test Email Subject\r\n\
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Date: Mon, 1 Jan 2024 12:00:00 +0000\r\n\
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Message-ID: <unique123@example.com>\r\n\
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\r\n\
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This is the email body content.";
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let result = extract_bytes(eml_content, "message/rfc822", &config)
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.await
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.expect("Should extract EML successfully");
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assert_eq!(result.mime_type, "message/rfc822");
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assert_eq!(result.metadata.subject, Some("Test Email Subject".to_string()));
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assert!(result.metadata.format.is_some());
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let email_meta = match result.metadata.format.as_ref().expect("Operation failed") {
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kreuzberg::FormatMetadata::Email(meta) => meta,
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_ => panic!("Expected Email metadata"),
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};
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assert_eq!(email_meta.from_email, Some("sender@example.com".to_string()));
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assert_eq!(email_meta.to_emails, vec!["recipient@example.com".to_string()]);
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assert!(email_meta.cc_emails.is_empty(), "CC should be empty");
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assert!(email_meta.bcc_emails.is_empty(), "BCC should be empty");
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assert!(email_meta.message_id.is_some());
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let msg_id = email_meta.message_id.clone().expect("Operation failed");
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assert!(
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msg_id.contains("unique123@example.com"),
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"Message ID should contain unique123@example.com"
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);
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assert!(email_meta.attachments.is_empty(), "Should have no attachments");
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assert!(result.metadata.created_at.is_some());
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assert!(result.content.contains("Subject: Test Email Subject"));
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assert!(result.content.contains("From: sender@example.com"));
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assert!(result.content.contains("To: recipient@example.com"));
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assert!(result.content.contains("This is the email body content"));
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}
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/// Test EML with attachments - metadata extraction.
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#[tokio::test]
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async fn test_eml_with_attachments() {
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let config = ExtractionConfig::default();
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let eml_content = b"From: sender@example.com\r\n\
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To: recipient@example.com\r\n\
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Subject: Email with Attachment\r\n\
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Content-Type: multipart/mixed; boundary=\"----boundary\"\r\n\
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\r\n\
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------boundary\r\n\
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Content-Type: text/plain\r\n\
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\r\n\
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Email body text.\r\n\
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------boundary\r\n\
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Content-Type: text/plain; name=\"file.txt\"\r\n\
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Content-Disposition: attachment; filename=\"file.txt\"\r\n\
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\r\n\
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Attachment content here.\r\n\
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------boundary--\r\n";
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let result = extract_bytes(eml_content, "message/rfc822", &config)
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.await
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.expect("Should extract EML with attachment");
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assert!(result.metadata.format.is_some());
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let email_meta = match result.metadata.format.as_ref().expect("Operation failed") {
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kreuzberg::FormatMetadata::Email(meta) => meta,
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_ => panic!("Expected Email metadata"),
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};
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if !email_meta.attachments.is_empty() {
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assert!(result.content.contains("Attachments:"));
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}
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assert!(result.content.contains("Email body text") || result.content.contains("Attachment content"));
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}
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/// Test EML with HTML body.
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#[tokio::test]
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async fn test_eml_html_body() {
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let config = ExtractionConfig::default();
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let eml_content = b"From: sender@example.com\r\n\
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To: recipient@example.com\r\n\
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Subject: HTML Email\r\n\
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Content-Type: text/html; charset=utf-8\r\n\
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\r\n\
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<html>\r\n\
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<head><style>body { color: blue; }</style></head>\r\n\
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<body>\r\n\
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<h1>HTML Heading</h1>\r\n\
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<p>This is <b>bold</b> text in HTML.</p>\r\n\
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<script>alert('test');</script>\r\n\
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</body>\r\n\
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</html>";
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let result = extract_bytes(eml_content, "message/rfc822", &config)
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.await
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.expect("Should extract HTML email");
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assert!(!result.content.contains("<script>"));
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assert!(!result.content.contains("<style>"));
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assert!(result.content.contains("HTML Heading") || result.content.contains("bold"));
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assert!(result.metadata.format.is_some());
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let email_meta = match result.metadata.format.as_ref().expect("Operation failed") {
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kreuzberg::FormatMetadata::Email(meta) => meta,
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_ => panic!("Expected Email metadata"),
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};
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assert_eq!(email_meta.from_email, Some("sender@example.com".to_string()));
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assert_eq!(email_meta.to_emails, vec!["recipient@example.com".to_string()]);
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assert_eq!(result.metadata.subject, Some("HTML Email".to_string()));
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}
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/// Test EML with plain text body.
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#[tokio::test]
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async fn test_eml_plain_text_body() {
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let config = ExtractionConfig::default();
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let eml_content = b"From: sender@example.com\r\n\
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To: recipient@example.com\r\n\
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Subject: Plain Text Email\r\n\
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Content-Type: text/plain; charset=utf-8\r\n\
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\r\n\
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This is a plain text email.\r\n\
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It has multiple lines.\r\n\
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And preserves formatting.";
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let result = extract_bytes(eml_content, "message/rfc822", &config)
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.await
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.expect("Should extract plain text email");
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assert!(result.content.contains("This is a plain text email"));
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assert!(result.content.contains("multiple lines"));
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assert!(result.content.contains("preserves formatting"));
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assert!(result.metadata.format.is_some());
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let email_meta = match result.metadata.format.as_ref().expect("Operation failed") {
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kreuzberg::FormatMetadata::Email(meta) => meta,
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_ => panic!("Expected Email metadata"),
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};
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assert_eq!(email_meta.from_email, Some("sender@example.com".to_string()));
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assert_eq!(email_meta.to_emails, vec!["recipient@example.com".to_string()]);
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assert_eq!(result.metadata.subject, Some("Plain Text Email".to_string()));
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}
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/// Test EML multipart (HTML + plain text).
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#[tokio::test]
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async fn test_eml_multipart() {
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let config = ExtractionConfig::default();
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let eml_content = b"From: sender@example.com\r\n\
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To: recipient@example.com\r\n\
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Subject: Multipart Email\r\n\
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Content-Type: multipart/alternative; boundary=\"----boundary\"\r\n\
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\r\n\
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------boundary\r\n\
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Content-Type: text/plain\r\n\
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\r\n\
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Plain text version of the email.\r\n\
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------boundary\r\n\
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Content-Type: text/html\r\n\
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\r\n\
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<html><body><p>HTML version of the email.</p></body></html>\r\n\
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------boundary--\r\n";
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let result = extract_bytes(eml_content, "message/rfc822", &config)
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.await
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.expect("Should extract multipart email");
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assert!(
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result.content.contains("Plain text version") || result.content.contains("HTML version"),
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"Should extract either plain text or HTML content"
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);
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assert!(result.metadata.format.is_some());
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let email_meta = match result.metadata.format.as_ref().expect("Operation failed") {
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kreuzberg::FormatMetadata::Email(meta) => meta,
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_ => panic!("Expected Email metadata"),
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};
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assert_eq!(email_meta.from_email, Some("sender@example.com".to_string()));
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assert_eq!(email_meta.to_emails, vec!["recipient@example.com".to_string()]);
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assert_eq!(result.metadata.subject, Some("Multipart Email".to_string()));
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}
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/// Test MSG file extraction (Outlook format).
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///
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/// Note: Creating valid MSG files programmatically is complex.
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/// This test verifies error handling for invalid MSG format.
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#[tokio::test]
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async fn test_msg_file_extraction() {
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let config = ExtractionConfig::default();
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let invalid_msg = b"This is not a valid MSG file";
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let result = extract_bytes(invalid_msg, "application/vnd.ms-outlook", &config).await;
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assert!(result.is_err(), "Invalid MSG should fail gracefully");
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}
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/// Test email thread with quoted replies.
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#[tokio::test]
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async fn test_email_thread() {
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let config = ExtractionConfig::default();
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let eml_content = b"From: person2@example.com\r\n\
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To: person1@example.com\r\n\
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Subject: Re: Original Subject\r\n\
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In-Reply-To: <original@example.com>\r\n\
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\r\n\
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This is my reply.\r\n\
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\r\n\
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On Mon, 1 Jan 2024, person1@example.com wrote:\r\n\
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> Original message text here.\r\n\
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> This was the first message.";
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let result = extract_bytes(eml_content, "message/rfc822", &config)
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.await
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.expect("Should extract email thread");
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assert!(result.content.contains("This is my reply"));
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assert!(result.content.contains("Original message text") || result.content.contains(">"));
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}
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/// Test email with various encodings (UTF-8, quoted-printable).
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#[tokio::test]
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async fn test_email_encodings() {
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let config = ExtractionConfig::default();
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let eml_content = "From: sender@example.com\r\n\
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To: recipient@example.com\r\n\
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Subject: Email with Unicode: 你好世界 🌍\r\n\
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Content-Type: text/plain; charset=utf-8\r\n\
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\r\n\
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Email body with special chars: café, naïve, résumé.\r\n\
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Emoji: 🎉 🚀 ✅"
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.as_bytes();
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let result = extract_bytes(eml_content, "message/rfc822", &config)
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.await
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.expect("Should extract UTF-8 email");
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assert!(result.content.contains("café") || result.content.contains("naive") || !result.content.is_empty());
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if let Some(subject) = result.metadata.subject {
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assert!(subject.contains("Unicode") || subject.contains("Email"));
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}
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}
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/// Test email with multiple recipients (To, CC, BCC).
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#[tokio::test]
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async fn test_email_large_attachments() {
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let config = ExtractionConfig::default();
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let eml_content = b"From: sender@example.com\r\n\
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To: r1@example.com, r2@example.com, r3@example.com\r\n\
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Cc: cc1@example.com, cc2@example.com\r\n\
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Bcc: bcc@example.com\r\n\
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Subject: Multiple Recipients\r\n\
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\r\n\
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Email to multiple recipients.";
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let result = extract_bytes(eml_content, "message/rfc822", &config)
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.await
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.expect("Should extract email with multiple recipients");
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assert!(result.metadata.format.is_some());
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let email_meta = match result.metadata.format.as_ref().expect("Operation failed") {
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kreuzberg::FormatMetadata::Email(meta) => meta,
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_ => panic!("Expected Email metadata"),
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};
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assert_eq!(email_meta.from_email, Some("sender@example.com".to_string()));
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assert_eq!(email_meta.to_emails.len(), 3, "Should have 3 To recipients");
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assert!(email_meta.to_emails.contains(&"r1@example.com".to_string()));
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assert!(email_meta.to_emails.contains(&"r2@example.com".to_string()));
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assert!(email_meta.to_emails.contains(&"r3@example.com".to_string()));
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assert_eq!(email_meta.cc_emails.len(), 2, "Should have 2 CC recipients");
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assert!(email_meta.cc_emails.contains(&"cc1@example.com".to_string()));
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assert!(email_meta.cc_emails.contains(&"cc2@example.com".to_string()));
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assert_eq!(result.metadata.subject, Some("Multiple Recipients".to_string()));
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assert!(email_meta.attachments.is_empty(), "Should have no attachments");
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}
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/// Test malformed email structure.
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#[tokio::test]
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async fn test_malformed_email() {
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let config = ExtractionConfig::default();
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let malformed_eml = b"This is not a valid email at all.";
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let result = extract_bytes(malformed_eml, "message/rfc822", &config).await;
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assert!(
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result.is_ok() || result.is_err(),
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"Should handle malformed email gracefully"
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);
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}
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// ---------------------------------------------------------------------------
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// MSG (Outlook) integration tests — exercises the direct CFB parser
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// ---------------------------------------------------------------------------
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/// Test MSG extraction with subject, sender, recipients, and body.
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#[tokio::test]
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async fn test_msg_basic_extraction() {
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if helpers::skip_if_missing("email/test_email.msg") {
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return;
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}
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let config = ExtractionConfig::default();
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let data = std::fs::read(helpers::get_test_file_path("email/test_email.msg")).unwrap();
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let result = extract_bytes(&data, "application/vnd.ms-outlook", &config)
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.await
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.expect("Should extract MSG successfully");
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assert!(result.content.contains("Subject: Test Email"));
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assert!(result.content.contains("Test Email"));
|
||
|
|
|
||
|
|
let email_meta = match result.metadata.format.as_ref().expect("format") {
|
||
|
|
kreuzberg::FormatMetadata::Email(m) => m,
|
||
|
|
_ => panic!("Expected Email metadata"),
|
||
|
|
};
|
||
|
|
assert_eq!(result.metadata.subject, Some("Test Email".to_string()));
|
||
|
|
assert!(!email_meta.to_emails.is_empty());
|
||
|
|
assert_eq!(email_meta.attachments.len(), 3);
|
||
|
|
}
|
||
|
|
|
||
|
|
/// Test MSG with Unicode content (sender, subject, date, message-id).
|
||
|
|
#[tokio::test]
|
||
|
|
async fn test_msg_unicode() {
|
||
|
|
if helpers::skip_if_missing("email/unicode.msg") {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
let config = ExtractionConfig::default();
|
||
|
|
let data = std::fs::read(helpers::get_test_file_path("email/unicode.msg")).unwrap();
|
||
|
|
let result = extract_bytes(&data, "application/vnd.ms-outlook", &config)
|
||
|
|
.await
|
||
|
|
.expect("Should extract Unicode MSG");
|
||
|
|
|
||
|
|
assert_eq!(result.metadata.subject, Some("Test for TIF files".to_string()));
|
||
|
|
|
||
|
|
let email_meta = match result.metadata.format.as_ref().expect("format") {
|
||
|
|
kreuzberg::FormatMetadata::Email(m) => m,
|
||
|
|
_ => panic!("Expected Email metadata"),
|
||
|
|
};
|
||
|
|
assert_eq!(email_meta.from_email, Some("brizhou@gmail.com".to_string()));
|
||
|
|
assert!(email_meta.to_emails.iter().any(|e| e.contains("brianzhou@me.com")));
|
||
|
|
assert!(email_meta.message_id.is_some());
|
||
|
|
assert!(result.metadata.created_at.is_some());
|
||
|
|
}
|
||
|
|
|
||
|
|
/// Test MSG with named attachments and MIME types.
|
||
|
|
#[tokio::test]
|
||
|
|
async fn test_msg_attachments() {
|
||
|
|
if helpers::skip_if_missing("email/attachment.msg") {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
let config = ExtractionConfig::default();
|
||
|
|
let data = std::fs::read(helpers::get_test_file_path("email/attachment.msg")).unwrap();
|
||
|
|
let result = extract_bytes(&data, "application/vnd.ms-outlook", &config)
|
||
|
|
.await
|
||
|
|
.expect("Should extract MSG with attachments");
|
||
|
|
|
||
|
|
let email_meta = match result.metadata.format.as_ref().expect("format") {
|
||
|
|
kreuzberg::FormatMetadata::Email(m) => m,
|
||
|
|
_ => panic!("Expected Email metadata"),
|
||
|
|
};
|
||
|
|
assert_eq!(email_meta.attachments.len(), 3);
|
||
|
|
assert!(result.content.contains("Attachments:"));
|
||
|
|
}
|
||
|
|
|
||
|
|
/// Test MSG with truncated FAT (cfb strict mode rejects, lenient padding handles).
|
||
|
|
#[tokio::test]
|
||
|
|
async fn test_msg_truncated_fat() {
|
||
|
|
if helpers::skip_if_missing("email/simple_msg_alt.msg") {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
let config = ExtractionConfig::default();
|
||
|
|
let data = std::fs::read(helpers::get_test_file_path("email/simple_msg_alt.msg")).unwrap();
|
||
|
|
let result = extract_bytes(&data, "application/vnd.ms-outlook", &config)
|
||
|
|
.await
|
||
|
|
.expect("Should handle MSG with truncated FAT via lenient padding");
|
||
|
|
|
||
|
|
assert_eq!(result.metadata.subject, Some("This is the subject".to_string()));
|
||
|
|
|
||
|
|
let email_meta = match result.metadata.format.as_ref().expect("format") {
|
||
|
|
kreuzberg::FormatMetadata::Email(m) => m,
|
||
|
|
_ => panic!("Expected Email metadata"),
|
||
|
|
};
|
||
|
|
assert_eq!(email_meta.from_email, Some("peterpan@neverland.com".to_string()));
|
||
|
|
}
|
||
|
|
|
||
|
|
/// Test MSG with truncated FAT and attachments.
|
||
|
|
#[tokio::test]
|
||
|
|
async fn test_msg_truncated_fat_with_attachments() {
|
||
|
|
if helpers::skip_if_missing("email/msg_with_attachments_alt.msg") {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
let config = ExtractionConfig::default();
|
||
|
|
let data = std::fs::read(helpers::get_test_file_path("email/msg_with_attachments_alt.msg")).unwrap();
|
||
|
|
let result = extract_bytes(&data, "application/vnd.ms-outlook", &config)
|
||
|
|
.await
|
||
|
|
.expect("Should handle truncated-FAT MSG with attachments");
|
||
|
|
|
||
|
|
assert_eq!(result.metadata.subject, Some("This is the subject".to_string()));
|
||
|
|
assert!(result.content.contains("Attachments:"));
|
||
|
|
}
|
||
|
|
|
||
|
|
/// Test that a large MSG with big attachments completes in reasonable time
|
||
|
|
/// (regression test for issue #372 — previously hung due to hex-encoding overhead).
|
||
|
|
#[tokio::test]
|
||
|
|
async fn test_msg_large_attachment_no_hang() {
|
||
|
|
if helpers::skip_if_missing("email/MSG_hang_repro.msg") {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
let config = ExtractionConfig::default();
|
||
|
|
let data = std::fs::read(helpers::get_test_file_path("email/MSG_hang_repro.msg")).unwrap();
|
||
|
|
|
||
|
|
let start = std::time::Instant::now();
|
||
|
|
let result = extract_bytes(&data, "application/vnd.ms-outlook", &config)
|
||
|
|
.await
|
||
|
|
.expect("Should extract large MSG without hanging");
|
||
|
|
let elapsed = start.elapsed();
|
||
|
|
|
||
|
|
assert!(
|
||
|
|
elapsed.as_secs() < 10,
|
||
|
|
"Extraction took {}s — should complete in under 10s",
|
||
|
|
elapsed.as_secs()
|
||
|
|
);
|
||
|
|
assert!(result.content.contains("MSG hang repro"));
|
||
|
|
assert!(result.content.contains("Attachments:"));
|
||
|
|
}
|
||
|
|
|
||
|
|
/// Test that invalid/corrupt MSG data returns a clear error.
|
||
|
|
#[tokio::test]
|
||
|
|
async fn test_msg_invalid_data() {
|
||
|
|
let config = ExtractionConfig::default();
|
||
|
|
let result = extract_bytes(b"not a valid MSG", "application/vnd.ms-outlook", &config).await;
|
||
|
|
assert!(result.is_err());
|
||
|
|
}
|
||
|
|
|
||
|
|
/// Test that a tiny invalid OLE file returns a clear error.
|
||
|
|
#[tokio::test]
|
||
|
|
async fn test_msg_bad_outlook() {
|
||
|
|
if helpers::skip_if_missing("email/bad_outlook.msg") {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
let config = ExtractionConfig::default();
|
||
|
|
let data = std::fs::read(helpers::get_test_file_path("email/bad_outlook.msg")).unwrap();
|
||
|
|
let result = extract_bytes(&data, "application/vnd.ms-outlook", &config).await;
|
||
|
|
assert!(result.is_err(), "Corrupt MSG should fail gracefully");
|
||
|
|
}
|