大大的小蜗牛

#!/bin/bash

# Tested versions: 
# Memos: v0.18.2 
# Mastodon: v4.2.8

# ======================================================
# Configuration Start

# Memos Host
MEMOS_HOST=""

# Memos Access Token
MEMOS_ACCESS_TOKEN=""

# Visibility for publishing to Memos ('PUBLIC', 'PROTECTED', 'PRIVATE') choose one
MEMOS_VISIBILITY=PUBLIC

# Mastodon Instance
MASTODON_INSTANCE=""

# Mastodon ID, Find ID: https://INSTANCE/api/v1/accounts/lookup?acct=USERNAME
MASTODON_ID=""

# Skip replies and reblogs
SKIP_MASTODON_REPLY=true
SKIP_MASTODON_REBLOG=true

# Get the current user's Home directory path and the file to save IDs, keep default, no need to change
HOME_DIR=~
FILE_PATH=$HOME_DIR/.mastodon_memos_id.json

# Configuration End
# ======================================================

# The following content does not need to be changed

# Check if the ID file exists
if [ ! -f "$FILE_PATH" ]; then
  # If the file does not exist, create the file and write JSON data
  echo '
{
  "latest_memos_id": "0",
  "latest_mastodon_id": "0",
  "bind": []
}
' > "$FILE_PATH"
  echo "Data file created: $FILE_PATH"
else
  # If the file exists, skip and proceed to the next steps
  echo "Local data exist, skipping..."
fi

# Concatenate API and Token
if [[ "$MEMOS_HOST" != */ ]]; then
  MEMOS_HOST="$MEMOS_HOST/"
fi
MEMOS_API_HOST="${MEMOS_HOST}api/v1/memo"
AUTHORIZATION="Bearer ${MEMOS_ACCESS_TOKEN}"

# Get the latest Memos ID
MEMOS_URL="${MEMOS_API_HOST}?creatorId=101&rowStatus=NORMAL&limit=1"
LATEST_MEMOS_ID=$(curl --connect-timeout 60 -s $MEMOS_URL | jq -r '.[0].id')

# Mastodon API
if [[ "$MASTODON_INSTANCE" != */ ]]; then
  MASTODON_INSTANCE="$MASTODON_INSTANCE/"
fi
CONTENT_URL="${MASTODON_INSTANCE}api/v1/accounts/${MASTODON_ID}/statuses?limit=1&exclude_replies=${SKIP_MASTODON_REPLY}&exclude_reblogs=${SKIP_MASTODON_REBLOG}"

# Latest Status ID from Mastodon
LATEST_MASTODON_ID=$(curl --connect-timeout 60 -s $CONTENT_URL | jq -r '.[0].id')

# Define LOCAL_MEMOS_ID variable
LOCAL_MEMOS_ID=$(cat "$FILE_PATH" | jq -r '.latest_memos_id')
LOCAL_MASTODON_ID=$(cat "$FILE_PATH" | jq -r '.latest_mastodon_id')

# When the Webhook is triggered, check if the latest Mastodon ID is the temporary ID to prevent duplicate sync
if [ "$LATEST_MASTODON_ID" == "$LOCAL_MASTODON_ID" ]; then
  echo "Mastodon no updated, skipping..."
  echo "Skipped: $(TZ=UTC-8 date +"%Y-%m-%d"" ""%T")"
  echo "============================="
  exit 0
fi

CONTENT=$(curl --connect-timeout 60 -s $CONTENT_URL | jq -r '.[0]')

MEDIA=$(echo $CONTENT | jq -r '.media_attachments')
# Check the content of Media
if [ "$MEDIA" != "null" ]; then
  MEDIAS=$(echo $CONTENT | jq -r '.media_attachments[] | select(.type=="image") | .url')
  # Concatenate images 
  images=""
  for url in $MEDIAS; do 
    images="$images![image]($url)\n"
  done
  TEXT=$(echo "$CONTENT" | jq -r '.content' | lynx -dump -stdin -nonumbers -nolist | tr -d '\n' | sed '/^$/N;s/\n\n/\n/g' | sed 's/^[[:space:]]*//;s/[[:space:]]*$//' | sed -E 's/ {2,}/ /g')
  TEXT="$TEXT\n$images"
else
  # Normal content
  TEXT=$(echo "$CONTENT" | jq -r '.content' | lynx -dump -stdin -nonumbers -nolist | tr -d '\n' | sed '/^$/N;s/\n\n/\n/g' | sed 's/^[[:space:]]*//;s/[[:space:]]*$//' | sed -E 's/ {2,}/ /g')
fi

# Check if content is empty
if [ -z "$TEXT" ] || [ "$TEXT" == "\\n" ]; then
  echo "Content is empty, skipping..."
  echo "Skipped: $(TZ=UTC-8 date +"%Y-%m-%d"" ""%T")"
  echo "============================="
  exit 0
fi

# Escape double quotes
TEXT=$(echo "$TEXT" | sed 's/"/\\"/g')

# When the Webhook is triggered, check if the latest Memos ID is the temporary ID
# After Memos has unilaterally updated, verify the binding relationship between Mastodon and Memos IDs (Todo)
#if [ "$LATEST_MEMOS_ID" == "$LOCAL_MEMOS_ID" ]; then
#  echo "Memos no updated, skipping..."
#  echo "Skipped: $(TZ=UTC-8 date +"%Y-%m-%d"" ""%T")"
#  echo "============================="
# exit 0
#fi

# Compare the MD5 values of the content from Mastodon and Memos (not necessarily precise)
# Later try to introduce GPT to compare content
CONTENT_MEMOS=$(curl --connect-timeout 60 -s $MEMOS_URL | jq '.[0].content')
CONTENT_MASTODON=$TEXT

# Get the latest Memos MD5
LATEST_MEMOS_MD5=$(echo $CONTENT_MEMOS | tr -d '"' | md5sum | cut -d' ' -f1)
# Get the latest Mastodon MD5
LATEST_TEXT_MD5=$(echo $TEXT | tr -d '"' | md5sum | cut -d' ' -f1)

# Determine if the content is duplicate based on MD5
if [ "$LATEST_TEXT_MD5" == "$LATEST_MEMOS_MD5" ]; then
  echo "Content is duplicate, skipping..."
  echo "Skipped: $(TZ=UTC-8 date +"%Y-%m-%d"" ""%T")"
  echo "============================="
  exit 0
fi

# Replace NeoDB rating Emoji
TEXT=$(echo "$TEXT" | sed "s/:star_empty:/🌑/g; s/:star_half:/🌗/g; s/:star_solid:/🌕/g")

# Remove the trailing empty line
TEXT=$(echo "$TEXT" | sed 's/\\n$//')

# Publish to Memos and get the returned JSON data
RESPONSE=$(curl -s -X POST \
  -H "Accept: application/json" \
  -H "Authorization: $AUTHORIZATION" \
  -d "{ \"content\": \"$TEXT\", \"visibility\": \"$MEMOS_VISIBILITY\"}" \
  $MEMOS_API_HOST)

# Extract the Memos ID from the returned JSON data
NEW_MEMOS_ID=$(echo "$RESPONSE" | jq -r '.id')

# Update the latest_memos_id value in the JSON file
jq ".latest_memos_id = \"$NEW_MEMOS_ID\"" "$FILE_PATH" > "${FILE_PATH}.tmp" && mv "${FILE_PATH}.tmp" "$FILE_PATH"

# Update the latest_mastodon_id value in the JSON file
jq ".latest_mastodon_id = \"$LATEST_MASTODON_ID\"" "$FILE_PATH" > "${FILE_PATH}.tmp" && mv "${FILE_PATH}.tmp" "$FILE_PATH"

# Update the binding relationship between Mastodon and Memos IDs, ensuring that the "bind" array retains unique keys, with only unique values
jq ".bind += [{\"$LATEST_MASTODON_ID\": \"$NEW_MEMOS_ID\"}] | .bind = (.bind | unique)" "$FILE_PATH" > "${FILE_PATH}.tmp" && mv "${FILE_PATH}.tmp" "$FILE_PATH"

echo "Sync Mastodon to Memos Successful!"
echo "Done: $(TZ=UTC-8 date +"%Y-%m-%d"" ""%T")"
echo "============================="

{
  "latest_memos_id": "",
  "latest_mastodon_id": "",
  "bind": []
}

{
  "latest_memos_id": "6231",
  "latest_mastodon_id": "112061852482921394",
  "bind": [
    {
      "112059053750743781": "6230"
    },
    {
      "112061852482921394": "6231"
    }
  ]
}