使用qmail和reformime自動將email附件保存到map

Question

使用qmail和reformime自動將email附件保存到map

我正在嘗試使用 dot-qmail 文件將附件自動移動到另一個位置。

我的.qmail 文件

#------------------------------------------------------------
| condredirect pdf-junkmail headermatch 'X-Spam-Status: Yes'
| reformime -X /bin/sh -c "if [ "\${FILENAME#*.}" == "pdf" ];  then cat > /home/users/name/home/$(date +%Y%m%d)_\$FILENAME; fi"
# Forward not set
# Vacation Message not set
./Maildir/

這適用於帶有一個附件的簡單郵件。 我的問題：

1. 我怎樣才能將屬於此附件的郵件消息移動到名為“完成”的郵箱中。
2. 上述命令不適用於一封郵件中的多個附件？ 如何調整這條線以適用於多個附件？
3. 如果文件名包含多個點，例如“how.areyou.pdf”，則此方法不起作用

謝謝您的幫助

Answer 1

這是針對您的問題的特色實現。

首先為您的用戶保存並設置此 bash 腳本的權限。
您需要從.qmail文件中調用它：

extract-pdf-attachments.sh

#!/usr/bin/env bash

# This script process mail message attachments from stdin MIME message
# Extract all PDF files attachments
# and return the MIME message to stdout for further processing

# Ensure all locale settings are set to C, to prevent
# reformime from failing MIME headers decode with
# [unknown character set: ANSI_X3.4-1968]
# See: https://bugs.gentoo.org/304093
export LC_ALL=C LANG=C LANGUAGE=C

# Setting the destination path for saved attachments
attachements='/home/users/name/home'

trap 'rm -f -- "$mailmessage"' EXIT # Purge temporary mail message

# Create a temporary message file
mailmessage="$(mktemp)"

# Save stdin message to tempfile
cat > "$mailmessage"

# Iterate all MIME sections from the message
while read -r mime_section; do

  # Get all section info headers
  section_info="$(reformime -s "$mime_section" -i <"$mailmessage")"

  # Parse the Content-Type header
  content_type="$(grep 'content-type' <<<"$section_info" | cut -d ' ' -f 2-)"

  # Parse the Content-Name header (if available)
  content_name="$(grep 'content-name' <<<"$section_info" | cut -d ' ' -f 2-)"

  # Decode the value of the Content-Name header
  content_name="$(reformime -c UTF-8 -h "$content_name")"

  if [[ $content_type = "application/pdf" || $content_name =~ .*\.[pP][dD][fF] ]]; then
    # Attachment is a PDF
    if [ -z "$content_name" ]; then
      # The attachment has no name, so create a random name
      content_name="$(mktemp --dry-run unnamed_XXXXXXXX.pdf)"
    fi
    # Prepend the date to the attachment filename
    filename="$(date +%Y%m%d)_$content_name"

    # Save the attachment to a file
    reformime -s "$mime_section" -e <"$mailmessage" >"$attachements/$filename"
  fi

done < <(reformime < "$mailmessage") # reformime list all mime sections

cat <"$mailmessage" # Re-inject the message to stdout for further processing

然后在你的.qmail中：

#------------------------------------------------------------
| condredirect pdf-junkmail headermatch 'X-Spam-Status: Yes'
| bash /path/to/extract-pdf-attachments.sh | condredirect done true
# Forward not set
# Vacation Message not set
./Maildir/