137 lines
4.2 KiB
Bash
137 lines
4.2 KiB
Bash
#!/bin/bash
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#requeue-email.sh - Sendet eine E-Mail aus S3 manuell in die SQS Queue
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#Simuliert das SNS-ähnliche Format, das der Worker erwartet (aus Lambda).
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#Extrahiert FROM und RECIPIENTS aus der E-Mail, falls nicht angegeben.
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set -e
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#Parameter prüfen
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if [ $# -lt 2 ]; then
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echo "Usage: $0 <BUCKET> <S3_KEY> [FROM] [RECIPIENTS]"
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echo ""
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echo "RECIPIENTS kann kommagetrennt sein, z.B. user1@domain.com,user2@domain.com"
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echo "Falls FROM und RECIPIENTS nicht angegeben, werden sie aus der E-Mail extrahiert."
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echo "Example:"
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echo " $0 bayarea-cc-emails rgskc3d59dqdm6lq1scenpuvdq7ikhi3cqk382g1"
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echo " oder mit manuellen Werten: $0 bayarea-cc-emails rgskc3d59dqdm6lq1scenpuvdq7ikhi3cqk382g1 sender@example.com user@bayarea-cc.com"
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echo ""
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exit 1
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fi
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BUCKET=$1
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S3_KEY=$2
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FROM=${3:-}
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RECIPIENTS=${4:-}
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#Konfiguration
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AWS_REGION="us-east-2"
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#Temporäre Datei für E-Mail
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TEMP_FILE="/tmp/email-${S3_KEY}.eml"
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echo "==================================="
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echo "Requeue E-Mail zu SQS Queue"
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echo "==================================="
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echo "Bucket: $BUCKET"
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echo "S3 Key: $S3_KEY"
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#Prüfen ob S3 Object existiert
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echo "Prüfe S3 Object..."
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if ! aws s3api head-object
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--bucket "$BUCKET"
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--key "$S3_KEY"
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--region "$AWS_REGION" &>/dev/null; then
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echo "ERROR: S3 Object nicht gefunden: s3://$BUCKET/$S3_KEY"
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exit 1
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fi
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echo "✓ S3 Object existiert"
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#Wenn FROM oder RECIPIENTS nicht angegeben, extrahiere aus E-Mail
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if [ -z "$FROM" ] || [ -z "$RECIPIENTS" ]; then
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echo "Extrahiere Headers aus E-Mail..."
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aws s3 cp "s3://$BUCKET/$S3_KEY" "$TEMP_FILE" --region "$AWS_REGION" --quiet
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#Embedded Python zum Parsen (robust für folded headers etc.)
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PARSE_OUTPUT=$(python3 -c "
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import sys
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import email
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with open(sys.argv[1], 'rb') as f:
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msg = email.message_from_bytes(f.read())
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from_addr = msg.get('From', '')
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to_addrs = msg.get_all('To', []) + msg.get_all('Cc', [])
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recipients = ','.join([str(addr) for addr in to_addrs]) if to_addrs else ''
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print(f'FROM:{from_addr}')
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print(f'RECIPIENTS:{recipients}')
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" "$TEMP_FILE")
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#Output parsen
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EXTRACTED_FROM=$(echo "$PARSE_OUTPUT" | grep '^FROM:' | cut -d':' -f2-)
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EXTRACTED_RECIPIENTS=$(echo "$PARSE_OUTPUT" | grep '^RECIPIENTS:' | cut -d':' -f2-)
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#Verwende extrahierte Werte, falls nicht angegeben
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FROM=${FROM:-$EXTRACTED_FROM}
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RECIPIENTS=${RECIPIENTS:-$EXTRACTED_RECIPIENTS}
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#Aufräumen
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rm -f "$TEMP_FILE"
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fi
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#Wenn immer noch leer, Error
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if [ -z "$FROM" ] || [ -z "$RECIPIENTS" ]; then
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echo "ERROR: Konnte FROM oder RECIPIENTS nicht extrahieren oder angeben."
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exit 1
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fi
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#Domain aus erstem Recipient extrahieren
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FIRST_RECIPIENT=$(echo "$RECIPIENTS" | cut -d',' -f1)
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DOMAIN=$(echo "$FIRST_RECIPIENT" | cut -d'@' -f2)
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#Queue-Name aus Domain ableiten
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QUEUE_NAME="${DOMAIN//./-}-queue"
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echo "From: $FROM"
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echo "Recipients: $RECIPIENTS"
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echo "Domain: $DOMAIN"
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echo "Queue: $QUEUE_NAME"
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echo ""
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#Queue URL ermitteln
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echo "Ermittle Queue URL..."
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QUEUE_URL=$(aws sqs get-queue-url
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--queue-name "$QUEUE_NAME"
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--region "$AWS_REGION"
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--query 'QueueUrl'
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--output text 2>/dev/null)
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if [ -z "$QUEUE_URL" ]; then
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echo "ERROR: Queue nicht gefunden: $QUEUE_NAME"
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exit 1
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fi
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echo "✓ Queue URL: $QUEUE_URL"
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#Recipients als Array für JSON
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RECIPIENTS_ARRAY=$(echo "$RECIPIENTS" | tr ',' '\n' | jq -R . | jq -s .)
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#Fake SES-Event erstellen
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SES_DATA=$(jq -n
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--arg from "$FROM"
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--arg msgid "$S3_KEY"
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--argjson recipients "$RECIPIENTS_ARRAY"
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'{
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mail: {
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source: $from,
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messageId: $msgid,
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destination: $recipients
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},
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receipt: {
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recipients: $recipients
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}
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}')
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#Fake SNS-Payload (Wrapper)
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FAKE_SNS_PAYLOAD=$(jq -n
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--argjson message "$SES_DATA"
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--arg msgid "$(uuidgen)"
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--arg timestamp "$(date -u +"%Y-%m-%dT%H:%M:%SZ")"
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'{
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Type: "Notification",
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MessageId: $msgid,
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TopicArn: "arn:aws:sns:ses-shim:global-topic",
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Subject: "Amazon SES Email Receipt Notification",
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Message: ($message | tostring),
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Timestamp: $timestamp
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}')
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#Message in Queue senden
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echo "Sende Message in Queue..."
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RESPONSE=$(aws sqs send-message
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--queue-url "$QUEUE_URL"
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--region "$AWS_REGION"
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--message-body "$FAKE_SNS_PAYLOAD")
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MESSAGE_ID=$(echo "$RESPONSE" | jq -r '.MessageId')
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echo ""
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echo "==================================="
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echo "✅ E-Mail erfolgreich in Queue"
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echo "==================================="
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echo "SQS Message ID: $MESSAGE_ID"
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echo "Queue: $QUEUE_NAME"
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echo ""
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echo "Der Worker wird die E-Mail in Kürze verarbeiten." |