Class: Heathrow::Sources::Imap

Inherits:
Object
  • Object
show all
Defined in:
lib/heathrow/sources/imap.rb

Instance Method Summary collapse

Constructor Details

#initialize(source) ⇒ Imap

Returns a new instance of Imap.



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# File 'lib/heathrow/sources/imap.rb', line 11

def initialize(source)
  @source = source
end

Instance Method Details

#can_reply? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/heathrow/sources/imap.rb', line 170

def can_reply?
  config = @source.config.is_a?(String) ? JSON.parse(@source.config) : @source.config
  # Check if we have SMTP configuration or can use gmail_smtp
  config['smtp_server'] || config['username']&.include?('@')
end

#description ⇒ Object 



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# File 'lib/heathrow/sources/imap.rb', line 19

def description
  'Fetch emails from any IMAP server using username/password'
end

#fetch_messages ⇒ Object 



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# File 'lib/heathrow/sources/imap.rb', line 23

def fetch_messages
  server = @source.config['imap_server']
  port = @source.config['imap_port'] || 993
  username = @source.config['username']
  password = @source.config['password']
  folder = @source.config['folder'] || 'INBOX'
  fetch_limit = @source.config['fetch_limit'] || 50
  mark_as_read = @source.config['mark_as_read'] || false
  use_ssl = @source.config['use_ssl'] != false  # Default to true
  
  messages = []
  
  begin
    # Connect to IMAP server
    if use_ssl
      imap = Net::IMAP.new(server, port, usessl = true, certs = nil, verify = false)
    else
      imap = Net::IMAP.new(server, port)
    end
    
    # Login with username/password
    imap.(username, password)
    imap.select(folder)
    
    # Get state file to track which messages we've already seen
    heathrow_home = File.expand_path('~/.heathrow')
    state_file = File.join(heathrow_home, 'state', "imap_#{@source.id}.json")
    FileUtils.mkdir_p(File.dirname(state_file))
    
    seen_uids = if File.exist?(state_file)
      JSON.parse(File.read(state_file))['seen_uids'] || []
    else
      []
    end
    
    # Search for unseen messages
    unseen_uids = imap.search(["UNSEEN"])
    
    # Get UIDs not already processed
    new_uids = unseen_uids - seen_uids
    new_uids = new_uids.first(fetch_limit) if new_uids.length > fetch_limit
    
    new_uids.each do |uid|
      msg = imap.uid_fetch(uid, ["ENVELOPE", "BODY[TEXT]", "FLAGS"]).first
      next unless msg
      
      envelope = msg.attr["ENVELOPE"]
      body = msg.attr["BODY[TEXT]"]
      flags = msg.attr["FLAGS"]
      
      from = envelope.from&.first
      sender = from ? "#{from.name || ''} <#{from.mailbox}@#{from.host}>" : "Unknown"
      
      is_unread = !flags.include?(:Seen)
      
      # Mark as read if configured to do so
      if mark_as_read && is_unread
        imap.uid_store(uid, "+FLAGS", [:Seen])
      end
      
      message = {
        source_id: @source.id,
        source_type: 'imap',
        external_id: "imap_#{username}_#{uid}",
        sender: sender,
        recipient: username,
        subject: envelope.subject || "(no subject)",
        content: body || "",
        raw_data: {
          envelope: envelope,
          flags: flags,
          uid: uid
        }.to_json,
        attachments: nil,
        timestamp: envelope.date || Time.now,
        is_read: flags.include?(:Seen) ? 1 : 0
      }
      
      messages << message
      seen_uids << uid
    end
    
    # Update state file
    File.write(state_file, JSON.generate({ 
      seen_uids: seen_uids,
      last_fetch: Time.now.to_s
    }))
    
    imap.logout
    imap.disconnect
  rescue Net::IMAP::NoResponseError => e
    # Authentication failed
    return [{
      source_id: @source.id,
      source_type: 'imap',
      sender: 'IMAP',
      subject: 'Authentication Failed',
      content: "Failed to login to #{server}: #{e.message}",
      timestamp: Time.now.to_s,
      is_read: 0
    }]
  rescue => e
    # Other errors
    return [{
      source_id: @source.id,
      source_type: 'imap',
      sender: 'IMAP',
      subject: 'Connection Error',
      content: "Error connecting to #{server}: #{e.message}",
      timestamp: Time.now.to_s,
      is_read: 0
    }]
  end
  
  messages
end

#name ⇒ Object 



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# File 'lib/heathrow/sources/imap.rb', line 15

def name
  'IMAP Email'
end

#send_message(to, subject, body, in_reply_to = nil) ⇒ Object 



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# File 'lib/heathrow/sources/imap.rb', line 176

def send_message(to, subject, body, in_reply_to = nil)
  config = @source.config.is_a?(String) ? JSON.parse(@source.config) : @source.config
  from = config['username']
  
  # Use the SmtpSender module
  require_relative '../smtp_sender'
  
  # SmtpSender will automatically detect OAuth2 domains and use gmail_smtp
  # or fall back to SMTP server configuration
  result = Heathrow::SmtpSender.send_message(
    from,
    to,
    subject,
    body,
    in_reply_to,
    config
  )
  
  result
end

#test_connection ⇒ Object 



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# File 'lib/heathrow/sources/imap.rb', line 140

def test_connection
  config = @source.config.is_a?(String) ? JSON.parse(@source.config) : @source.config
  server = config['imap_server']
  port = config['imap_port'] || 993
  username = config['username']
  password = config['password']
  use_ssl = config['use_ssl'] != false
  
  begin
    if use_ssl
      imap = Net::IMAP.new(server, port, usessl = true, certs = nil, verify = false)
    else
      imap = Net::IMAP.new(server, port)
    end
    
    imap.(username, password)
    
    # Get folder list to verify connection
    folders = imap.list('', '*')
    folder_count = folders&.size || 0
    
    imap.logout
    imap.disconnect
    
    { success: true, message: "Connected to #{server} (#{folder_count} folders)" }
  rescue => e
    { success: false, message: "Connection failed: #{e.message}" }
  end
end