marktheunissen/htmlfiles_migration.inc.php

## htmlfiles_migration.inc.php
<?php

class MyMigration extends Migration {
  public $base_dir;

  /**
   * Constructor.
   */
  public function __construct() {
    parent::__construct();

    // A map of source HTML filename -> destination node id.
    $this->map = new MigrateSQLMap($this->machineName,
        array(
          'sourceid' => array(
            'type' => 'varchar',
            'length' => 255,
            'not null' => TRUE,
          )
        ),
        MigrateDestinationNode::getKeySchema()
    );

    // The source fields.
    $fields = array(
      'title' => t('Title'),
      'body' => t('Body'),
      'uid' => t('User id'),
    );

    // Since the base directory of the HTML files can change depending on the
    // environment, we keep it in a variable. There is no interface for this,
    // set it using drush vset.
    $this->base_dir = variable_get('my_migration_source', '');

    // Match HTML files.
    $regex = '/.*\.html/';

    // The source of the migration is HTML files from the old site.
    $list_files = new MigrateListFiles(array($this->base_dir), $this->base_dir, $regex);
    $item_file = new MigrateItemFile($this->base_dir);
    $this->source = new MigrateSourceList($list_files, $item_file, $fields);

    // The destination is the mynode content type.
    $this->destination = new MigrateDestinationNode('mynode');

    // Map the fields, pretty straightforward in this case.
    $this->addFieldMapping('uid', 'uid');
    $this->addFieldMapping('title', 'title');
    $this->addFieldMapping('body', 'body')
      ->arguments(array('format' => 'full_html'));
  }

  /**
   * Prepare a row.
   */
  public function prepareRow($row) {
    // Set to admin for now.
    $row->uid = 1;

    // Create a new SourceParser to handle HTML content.
    $source_parser = new SourceParser(substr($row->sourceid, 1), $row->filedata);
    $row->body = $source_parser->getBody();

    // The title is the filename.
    $row->title = $row->sourceid;
  }
}

## source_parser.inc.php
<?php

// Include QueryPath.
require_once drupal_get_path('module', 'my_migration') . '/libraries/QueryPath-2.1.2-minimal/QueryPath.php';
require_once drupal_get_path('module', 'my_migration') . '/libraries/QueryPath-2.1.2-minimal/Extension/QPXML.php';

class SourceParser {
  protected $id;
  protected $html;
  protected $qp;

  /**
   * Constructor.
   *
   * @param $id
   *  The filename, e.g. pm7205.html
   * @param $html
   *  The full HTML data as loaded from the file.
   */
  public function __construct($id, $html) {
    $this->id = $id;
    $this->html = $html;

    $this->charTransform();
    $this->fixEncoding();
    $this->wrapHTML();
    $this->initQP();
    $this->stripComments();
  }

  /**
   * Replace characters.
   */
  protected function charTransform() {
    // We need to strip the Windows CR characters, because otherwise we end up
    // with &#13; in the output.
    // http://technosophos.com/content/querypath-whats-13-end-every-line
    $this->html = str_replace(chr(13), '', $this->html);
  }

  /**
   * Deal with encodings.
   */
  protected function fixEncoding() {
    // If the content is not UTF8, we assume it's WINDOWS-1252. This fixes
    // bogus character issues. Technically it could be ISO-8859-1 but it's safe
    // to convert this way.
    // http://en.wikipedia.org/wiki/Windows-1252
    $enc = mb_detect_encoding($this->html, 'UTF-8', TRUE);
    if (!$enc) {
      $this->html = mb_convert_encoding($this->html, 'UTF-8', 'WINDOWS-1252');
    }
  }

  /**
   * Wrap an HTML fragment in the correct head/meta tags so that UTF-8 is
   * correctly detected, and for the parsers and tidiers.
   */
  protected function wrapHTML() {
    // We add surrounding <html> and <head> tags.
    $html = '<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">';
    $html .= '<html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8" /></head><body>';
    $html .= $this->html;
    $html .= '</body></html>';
    $this->html = $html;
  }

  /**
   * Create the QueryPath object.
   */
  protected function initQP() {
    $qp_options = array(
      'convert_to_encoding' => 'utf-8',
      'convert_from_encoding' => 'utf-8',
      'strip_low_ascii' => FALSE,
    );
    $this->qp = htmlqp($this->html, NULL, $qp_options);
  }

  /**
   * Remove the comments from the HTML.
   */
  protected function stripComments() {
    foreach ($this->qp->top()->xpath('//comment()')->get() as $comment) {
      $comment->parentNode->removeChild($comment);
    }
  }

  /**
   * Return the HTML.
   */
  public function getBody() {
    $body = $this->qp->top('body')->innerHTML();
    $body = trim($body);
    return $body;
  }
}
	<?php

	class MyMigration extends Migration {
	public $base_dir;

	/**
	* Constructor.
	*/
	public function __construct() {
	parent::__construct();

	// A map of source HTML filename -> destination node id.
	$this->map = new MigrateSQLMap($this->machineName,
	array(
	'sourceid' => array(
	'type' => 'varchar',
	'length' => 255,
	'not null' => TRUE,
	)
	),
	MigrateDestinationNode::getKeySchema()
	);

	// The source fields.
	$fields = array(
	'title' => t('Title'),
	'body' => t('Body'),
	'uid' => t('User id'),
	);

	// Since the base directory of the HTML files can change depending on the
	// environment, we keep it in a variable. There is no interface for this,
	// set it using drush vset.
	$this->base_dir = variable_get('my_migration_source', '');

	// Match HTML files.
	$regex = '/.*\.html/';

	// The source of the migration is HTML files from the old site.
	$list_files = new MigrateListFiles(array($this->base_dir), $this->base_dir, $regex);
	$item_file = new MigrateItemFile($this->base_dir);
	$this->source = new MigrateSourceList($list_files, $item_file, $fields);

	// The destination is the mynode content type.
	$this->destination = new MigrateDestinationNode('mynode');

	// Map the fields, pretty straightforward in this case.
	$this->addFieldMapping('uid', 'uid');
	$this->addFieldMapping('title', 'title');
	$this->addFieldMapping('body', 'body')
	->arguments(array('format' => 'full_html'));
	}

	/**
	* Prepare a row.
	*/
	public function prepareRow($row) {
	// Set to admin for now.
	$row->uid = 1;

	// Create a new SourceParser to handle HTML content.
	$source_parser = new SourceParser(substr($row->sourceid, 1), $row->filedata);
	$row->body = $source_parser->getBody();

	// The title is the filename.
	$row->title = $row->sourceid;
	}
	}
	<?php

	// Include QueryPath.
	require_once drupal_get_path('module', 'my_migration') . '/libraries/QueryPath-2.1.2-minimal/QueryPath.php';
	require_once drupal_get_path('module', 'my_migration') . '/libraries/QueryPath-2.1.2-minimal/Extension/QPXML.php';

	class SourceParser {
	protected $id;
	protected $html;
	protected $qp;

	/**
	* Constructor.
	*
	* @param $id
	* The filename, e.g. pm7205.html
	* @param $html
	* The full HTML data as loaded from the file.
	*/
	public function __construct($id, $html) {
	$this->id = $id;
	$this->html = $html;

	$this->charTransform();
	$this->fixEncoding();
	$this->wrapHTML();
	$this->initQP();
	$this->stripComments();
	}

	/**
	* Replace characters.
	*/
	protected function charTransform() {
	// We need to strip the Windows CR characters, because otherwise we end up
	// with in the output.
	// http://technosophos.com/content/querypath-whats-13-end-every-line
	$this->html = str_replace(chr(13), '', $this->html);
	}

	/**
	* Deal with encodings.
	*/
	protected function fixEncoding() {
	// If the content is not UTF8, we assume it's WINDOWS-1252. This fixes
	// bogus character issues. Technically it could be ISO-8859-1 but it's safe
	// to convert this way.
	// http://en.wikipedia.org/wiki/Windows-1252
	$enc = mb_detect_encoding($this->html, 'UTF-8', TRUE);
	if (!$enc) {
	$this->html = mb_convert_encoding($this->html, 'UTF-8', 'WINDOWS-1252');
	}
	}

	/**
	* Wrap an HTML fragment in the correct head/meta tags so that UTF-8 is
	* correctly detected, and for the parsers and tidiers.
	*/
	protected function wrapHTML() {
	// We add surrounding <html> and <head> tags.
	$html = '<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">';
	$html .= '<html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8" /></head><body>';
	$html .= $this->html;
	$html .= '</body></html>';
	$this->html = $html;
	}

	/**
	* Create the QueryPath object.
	*/
	protected function initQP() {
	$qp_options = array(
	'convert_to_encoding' => 'utf-8',
	'convert_from_encoding' => 'utf-8',
	'strip_low_ascii' => FALSE,
	);
	$this->qp = htmlqp($this->html, NULL, $qp_options);
	}

	/**
	* Remove the comments from the HTML.
	*/
	protected function stripComments() {
	foreach ($this->qp->top()->xpath('//comment()')->get() as $comment) {
	$comment->parentNode->removeChild($comment);
	}
	}

	/**
	* Return the HTML.
	*/
	public function getBody() {
	$body = $this->qp->top('body')->innerHTML();
	$body = trim($body);
	return $body;
	}
	}