Attachments

def add_binary(data, compressed=True, protected=True):
    """
    Add binary data to the database.
    
    Parameters:
    - data (bytes): Binary data to store
    - compressed (bool): Whether to compress the data (default True)
    - protected (bool): Whether to protect the data in memory (default True)
    
    Returns:
    int: Binary ID that can be used to reference this data
    """

def delete_binary(id):
    """
    Delete binary data and all references to it.
    
    Parameters:
    - id (int): Binary ID to delete
    
    Note: This will remove the binary data and all attachment references to it
    """

from pykeepass import PyKeePass

kp = PyKeePass('database.kdbx', password='secret')

# Read file and add as binary data
with open('document.pdf', 'rb') as f:
    binary_data = f.read()

# Add binary data to database
binary_id = kp.add_binary(binary_data, compressed=True, protected=True)
print(f"Binary stored with ID: {binary_id}")

# Delete binary data when no longer needed
kp.delete_binary(binary_id)

kp.save()

def find_attachments(**kwargs):
    """
    Find attachments with flexible criteria.
    
    Parameters:
    - filename (str, optional): Match filename
    - id (int, optional): Match binary ID
    - element (Element, optional): Match parent element
    - regex (bool): Use regex matching for filename
    - flags (int, optional): Regex flags
    - first (bool): Return only first match
    
    Returns:
    list or Attachment: List of matching attachments, or single attachment if first=True
    """

import re

# Find all attachments
all_attachments = kp.find_attachments()

# Find by filename
pdf_attachments = kp.find_attachments(filename='document.pdf')
image_attachments = kp.find_attachments(filename=r'.*\.(jpg|png|gif)$', regex=True)

# Find by binary ID
attachment = kp.find_attachments(id=123, first=True)

# Case-insensitive filename search
docs = kp.find_attachments(filename='readme', regex=True, flags=re.IGNORECASE)

# Get first attachment matching criteria
first_pdf = kp.find_attachments(filename=r'.*\.pdf$', regex=True, first=True)

# Entry methods for attachment management
def add_attachment(id, filename):
    """
    Add an attachment to this entry.
    
    Parameters:
    - id (int): Binary ID of stored data
    - filename (str): Display filename for the attachment
    
    Returns:
    Attachment: The created attachment object
    """

def delete_attachment(attachment):
    """
    Remove an attachment from this entry.
    
    Parameters:
    - attachment (Attachment): Attachment object to remove
    
    Note: This removes the attachment reference but not the binary data
    """

# Find entry to attach file to
entry = kp.find_entries_by_title('Important Document', first=True)

# Read and store binary data
with open('contract.pdf', 'rb') as f:
    binary_data = f.read()

binary_id = kp.add_binary(binary_data)

# Attach to entry
attachment = entry.add_attachment(binary_id, 'contract.pdf')
print(f"Attached {attachment.filename} to {entry.title}")

# Remove attachment from entry
entry.delete_attachment(attachment)

kp.save()

class Attachment:
    def __init__(element=None, kp=None, id=None, filename=None):
        """Create a new Attachment object."""
    
    @property
    def id() -> int:
        """Binary reference ID"""
    
    @property
    def filename() -> str:
        """Attachment filename"""
    
    @property
    def entry() -> Entry:
        """Parent entry that owns this attachment"""
    
    @property
    def binary() -> bytes:
        """Binary data content"""
    
    @property  
    def data() -> bytes:
        """Alias for binary property - binary data content"""
    
    def delete():
        """Remove this attachment from its parent entry."""

# Access attachment properties
entry = kp.find_entries_by_title('Document Entry', first=True)

for attachment in entry.attachments:
    print(f"Filename: {attachment.filename}")
    print(f"Binary ID: {attachment.id}")
    print(f"Data size: {len(attachment.binary)} bytes")
    print(f"Parent entry: {attachment.entry.title}")
    
    # Save attachment to file
    with open(f"exported_{attachment.filename}", 'wb') as f:
        f.write(attachment.data)  # or attachment.binary

from pykeepass import PyKeePass
import os

kp = PyKeePass('database.kdbx', password='secret')

# Find or create entry
entry = kp.find_entries_by_title('Project Files', first=True)
if not entry:
    group = kp.find_groups_by_name('Work', first=True)
    entry = kp.add_entry(group, 'Project Files', 'username', 'password')

# Add multiple files
files_to_attach = ['spec.pdf', 'diagram.png', 'notes.txt']

for filepath in files_to_attach:
    if os.path.exists(filepath):
        # Read file
        with open(filepath, 'rb') as f:
            binary_data = f.read()
        
        # Store in database
        binary_id = kp.add_binary(binary_data, compressed=True, protected=True)
        
        # Attach to entry
        filename = os.path.basename(filepath)
        attachment = entry.add_attachment(binary_id, filename)
        print(f"Attached: {filename} ({len(binary_data)} bytes)")

kp.save()

# Extract all attachments from database
output_dir = 'extracted_attachments'
os.makedirs(output_dir, exist_ok=True)

all_attachments = kp.find_attachments()

for attachment in all_attachments:
    # Create safe filename
    safe_filename = attachment.filename.replace('/', '_').replace('\\', '_')
    output_path = os.path.join(output_dir, safe_filename)
    
    # Handle filename conflicts
    counter = 1
    base_path = output_path
    while os.path.exists(output_path):
        name, ext = os.path.splitext(base_path)
        output_path = f"{name}_{counter}{ext}"
        counter += 1
    
    # Write attachment data
    with open(output_path, 'wb') as f:
        f.write(attachment.binary)
    
    print(f"Extracted: {attachment.filename} -> {output_path}")
    print(f"  From entry: {attachment.entry.title}")
    print(f"  Size: {len(attachment.binary)} bytes")

# Clean up unused binary data
used_binary_ids = set()

# Collect all binary IDs in use
for attachment in kp.find_attachments():
    used_binary_ids.add(attachment.id)

# Find unused binaries (this requires access to internal binary storage)
all_binary_ids = set(range(len(kp.binaries)))
unused_binary_ids = all_binary_ids - used_binary_ids

# Remove unused binaries
for binary_id in unused_binary_ids:
    try:
        kp.delete_binary(binary_id)
        print(f"Deleted unused binary ID: {binary_id}")
    except Exception as e:
        print(f"Could not delete binary ID {binary_id}: {e}")

kp.save()

# Report attachment statistics
total_attachments = len(kp.find_attachments())
total_size = sum(len(attachment.binary) for attachment in kp.find_attachments())

print(f"Database contains {total_attachments} attachments")
print(f"Total attachment size: {total_size / 1024:.1f} KB")

# Validate all attachments
invalid_attachments = []

for attachment in kp.find_attachments():
    try:
        # Test access to binary data
        data = attachment.binary
        if not data or len(data) == 0:
            invalid_attachments.append((attachment, "Empty data"))
        
        # Validate filename
        if not attachment.filename or attachment.filename.strip() == '':
            invalid_attachments.append((attachment, "Invalid filename"))
        
        # Check parent entry exists
        if not attachment.entry:
            invalid_attachments.append((attachment, "No parent entry"))
            
    except Exception as e:
        invalid_attachments.append((attachment, f"Access error: {e}"))

# Report issues
if invalid_attachments:
    print("Invalid attachments found:")
    for attachment, issue in invalid_attachments:
        print(f"  {attachment.filename}: {issue}")
else:
    print("All attachments are valid")