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Handle local postfix delivery

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This commit is contained in:
nemunaire 2025-10-24 10:12:43 +07:00
commit 4bbba66a81
3 changed files with 38 additions and 13 deletions
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25
pkg/analyzer/headers.go
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@ -450,11 +450,18 @@ func (h *HeaderAnalyzer) parseReceivedHeader(receivedValue string) *api.Received
// Normalize whitespace - Received headers can span multiple lines
normalized := strings.Join(strings.Fields(receivedValue), " ")
// Extract "from" field
fromRegex := regexp.MustCompile(`(?i)from\s+([^\s(]+)`)
if matches := fromRegex.FindStringSubmatch(normalized); len(matches) > 1 {
from := matches[1]
hop.From = &from
// Check if this is a "by-first" header (e.g., "by hostname (Postfix, from userid...)")
// vs standard "from-first" header (e.g., "from hostname ... by hostname")
isByFirst := regexp.MustCompile(`^by\s+`).MatchString(strings.TrimSpace(normalized))
// Extract "from" field - only if not in "by-first" format
// Avoid matching "from" inside parentheses after "by"
if !isByFirst {
fromRegex := regexp.MustCompile(`(?i)^from\s+([^\s(]+)`)
if matches := fromRegex.FindStringSubmatch(normalized); len(matches) > 1 {
from := matches[1]
hop.From = &from
}
}
// Extract "by" field
@ -466,14 +473,16 @@ func (h *HeaderAnalyzer) parseReceivedHeader(receivedValue string) *api.Received
// Extract "with" field (protocol) - must come after "by" and before "id" or "for"
// This ensures we get the mail transfer protocol, not other "with" occurrences
withRegex := regexp.MustCompile(`(?i)by\s+[^\s(]+[^;]*?\s+with\s+([A-Z0-9]+)`)
// Avoid matching "with" inside parentheses (like in TLS details)
withRegex := regexp.MustCompile(`(?i)by\s+[^\s(]+[^;]*?\s+with\s+([A-Z0-9]+)(?:\s|;)`)
if matches := withRegex.FindStringSubmatch(normalized); len(matches) > 1 {
with := matches[1]
hop.With = &with
}
// Extract "id" field
idRegex := regexp.MustCompile(`(?i)id\s+([^\s;]+)`)
// Extract "id" field - should come after "with" or "by", not inside parentheses
// Match pattern: "id <value>" where value doesn't contain parentheses or semicolons
idRegex := regexp.MustCompile(`(?i)\s+id\s+([^\s;()]+)`)
if matches := idRegex.FindStringSubmatch(normalized); len(matches) > 1 {
id := matches[1]
hop.Id = &id