function fmGetContainer($fm_databases)
{
// Determine the resource that is being requested via the _SERVER scope.
// ex: http://localhost/dynamic-containers/530f982c01733/1393530924/Sample.pdf
if (isset($_SERVER['SCRIPT_URI'])) {
$resource_requested = $_SERVER['SCRIPT_URI'];
} elseif (isset($_SERVER['REDIRECT_URL'])) {
$resource_requested = $_SERVER['REDIRECT_URL'];
} else {
die('fmGetContainer: Unable to determine the resource that was requested.');
}
// Remove the Root URL from the resource requested.
// This resolves issues encountered when the Web app is in a sub-folder.
// Example: /containers/macmini.png
$resource_requested = fmSubstitute($resource_requested, HTTP_ROOT_URL, '');
// Remove the virtual container folder from the resource requested.
// This resolves issues encountered when the Web app is in a sub-folder.
// Example: /macmini.png
$resource_requested = fmSubstitute($resource_requested, CONTAINER_FOLDER, '');
// fmDump ( $resource_requested, TRUE, 'resource_requested' );
// Get the resource's info file name.
// Example: macmini.png.info
$info_file_name = fmSubstitute($resource_requested, '/', '-');
$info_file_name = fmRight($info_file_name, fmLength($info_file_name) - 1);
$info_file_name .= '.info';
// fmDump ( $info_file_name, TRUE, 'info_file_name' );
// Get the OS path that was used to store the container's info file.
// Example: /domains/demo.fmwebframe.com/html/FMWebFrame/../temp/macmini.png.info
$physical_path_container_info_file = CONTAINER_PATH . '/' . $info_file_name;
// fmDump ( $physical_path_container_info_file, TRUE, 'physical_path_container_info_file' );
// If the info file wasn't found...
if (!file_exists($physical_path_container_info_file)) {
// Return control to the 404 error handler.
return;
}
// Read the info file.
$info_file_contents = @file_get_contents($physical_path_container_info_file);
// fmDump ( $info_file_contents, TRUE, 'info_file_contents' );
// Convert the contents of the info file into an array.
$container_info_array = preg_split("/\n/", $info_file_contents);
// fmDump ( $container_info_array, TRUE, 'container_info_array' );
// Break the array up into variables for easier reference.
$container_field_as_text = $container_info_array[0];
$maximum_age = $container_info_array[1];
$access_rule = $container_info_array[2];
// Get the OS path that will be used to get/save the container's binary contents.
// Example: /domains/demo.fmwebframe.com/html/FMWebFrame/../temp/macmini.png
$physical_path_container_contents_file = fmLeft($physical_path_container_info_file, fmLength($physical_path_container_info_file) - 5);
// fmDump ( $physical_path_container_contents_file, TRUE, 'physical_path_container_contents_file' );
// If the URL is only valid for a certain amount of time...
if ($maximum_age > 0) {
// Get the age of the info file.
$file_age = time() - filemtime($physical_path_container_info_file);
// fmDump ( $file_age, TRUE, 'file_age' );
// If the URL has expired...
if ($file_age >= $maximum_age) {
// Delete the "stale" files.
@unlink($physical_path_container_contents_file);
@unlink($physical_path_container_info_file);
// Return control to the 404 error handler.
return;
}
}
// If an access rule was specified...
if ($access_rule !== '') {
// Evaluate the rule.
$allow_access = eval('return (' . $access_rule . ');');
//fmDump ( $access_rule, FALSE, 'access_rule' );
//fmDump ( $allow_access, TRUE, 'allow_access' );
// If the rule failed...
if (!$allow_access) {
// Replace the 404 response with a "403 Forbidden" and die.
header('Status: 403', TRUE, 403);
die;
}
}
// Split the container's text value into an array so that we can isolate the file name & container info.
$container_field_array = explode('?', $container_field_as_text);
// fmDump ( $container_field_array, TRUE, 'container_field_array' );
// Get the file name (the first element of the "container_field_array" array).
$filename = $container_field_array[0];
$filename = fmsubstitute($filename, '/fmi/xml/cnt/', '');
$filename = urldecode($filename);
$filename = fmsubstitute($filename, ' ', '-');
// fmDump ( $filename, TRUE, 'filename' );
// Parse the second element of the "container_field_array" array into individual variables.
// Note: parse_str parses a query string into variables.
// ex: -db=FMWebFrame_Demo&-lay=Resource%20-%20Form&-recid=2&-field=Resource(1)
// ---> db = FMWebFrame_Demo
// ---> lay = Resource - Form
// ---> recid = 2
// ---> field = Resource(1)
// Note that we're most interested in the database name, which we need in order to
// determine the database connection info to use should we need to refer back to
// the record that the container was pulled from.
$container_info = html_entity_decode($container_field_array[1]);
$container_info = fmsubstitute($container_info, '-db', 'db');
$container_info = fmsubstitute($container_info, '&-', '&');
parse_str($container_info);
// fmDump ( $db, TRUE, 'db' );
// If the container contents file is available...
if (file_exists($physical_path_container_contents_file)) {
// Read the file.
$container_data = @file_get_contents($physical_path_container_contents_file);
} else {
// Using the database name, find the database connection to use...
foreach ($fm_databases as $fm_database) {
// If the connection was found...
if ($fm_database['database'] == $db) {
// Create a connection to the database.
$fm = new FileMaker();
$fm->setProperty('hostspec', $fm_database['hostspec']);
$fm->setProperty('database', $fm_database['database']);
$fm->setProperty('username', $fm_database['username']);
$fm->setProperty('password', $fm_database['password']);
break;
}
}
if (!isset($fm)) {
// Return control to the 404 error handler.
return;
}
// fmDump ( $fm, TRUE, 'fm' );
// Get the record that the container was pulled from.
$container_record = $fm->getRecordById($lay, $recid);
// fmDump ( $container_record, TRUE, 'container_record' );
// Get the container data.
$container_data = $fm->getContainerData($container_field_as_text);
if (FileMaker::isError($container_data)) {
die;
}
// fmDump ( $container_data, FALSE, 'container_data' );
// Save the container's contents on the server.
@file_put_contents($physical_path_container_contents_file, $container_data);
}
// If we have the container's content...
if (isset($container_data)) {
// Update the http response header, so that this does not appear to be a "404."
header('Status: 200', TRUE, 200);
// Explode the filename to get the extension.
$filename_parts = explode('.', $filename);
$extension = $filename_parts[1];
// If the extension includes a URL request...
if (fmPatternCount($extension, '?')) {
$extension_parts = explode('?', $extension);
$extension = $extension_parts[0];
}
// Setup the headers to use, based on the file type (extension).
switch ($extension) {
case 'gif':
header('Content-type: image/gif');
header('Content-Disposition: filename="' . $filename . '"');
break;
case 'jpeg':
header('Content-type: image/jpeg');
header('Content-Disposition: filename="' . $filename . '"');
break;
case 'jpg':
header('Content-type: image/jpeg');
header('Content-Disposition: filename="' . $filename . '"');
break;
case 'mov':
header('Content-type: video/quicktime');
header('Content-Disposition: filename="' . $filename . '"');
break;
case 'mp3':
header('Content-type: audio/mpeg');
header('Content-Disposition: filename="' . $filename . '"');
break;
case 'mp4':
header('Content-type: video/mp4');
header('Content-Disposition: filename="' . $filename . '"');
break;
case 'ogg':
header('Content-type: application/ogg');
header('Content-Disposition: filename="' . $filename . '"');
break;
case 'pdf':
header('Content-type: application/pdf');
header('Content-Disposition: filename="' . $filename . '"');
break;
case 'png':
header('Content-type: image/png');
header('Content-Disposition: filename="' . $filename . '"');
break;
default:
header('Content-type: application/force-download');
header('Content-Transfer-Encoding: Binary');
header('Content-Disposition: attachment; filename="' . $filename . '"');
}
// Send additional headers.
header('Content-Length: ' . strlen($container_data));
header('Cache-Control: private');
// Send the container's binary data.
echo $container_data;
die;
}
}
function fmGetContainerURL($connection = null, $record = null, $field_name = null, $use_uuid = FALSE, $virtual_subfolder = null, $maximum_age = 30, $access_rule = null)
{
// Get the value of the container as a string.
// This is the same value that you would normally pass to the "getContainerData" method to
// get a container's binary contents.
// Example: /fmi/xml/cnt/Sample.pdf?-db=FMWebFrame_Demo&-lay=Resource%20-%20Form&-recid=2&-field=Resource(1)
$container_field_as_text = $record->getField($field_name);
// fmDump ( $container_field_as_text, FALSE );
// Split the text value into an array so that we can isolate the file name.
$container_field_array = explode('?', $container_field_as_text);
// fmDump ( $container_field_array, FALSE );
// Get the filename from the first element of the array.
// Ex: /fmi/xml/cnt/Sample.pdf ---> Sample.pdf
$filename = $container_field_array[0];
$filename = fmsubstitute($filename, '/fmi/xml/cnt/', '');
$filename = urldecode($filename);
$filename = fmsubstitute($filename, ' ', '-');
// fmDump ( $filename, FALSE, 'FileName' );
// Parse the second element of the array into individual variables.
// Note: parse_str parses a query string into variables.
// ex: -db=FMWebFrame_Demo&-lay=Resource%20-%20Form&-recid=2&-field=Resource(1)
// ---> db = FMWebFrame_Demo
// ---> lay = Resource - Form
// ---> recid = 2
// ---> field = Resource(1)
$container_info = html_entity_decode($container_field_array[1]);
$container_info = fmsubstitute($container_info, '-db', 'db');
$container_info = fmsubstitute($container_info, '&-', '&');
parse_str($container_info);
// Create the OS path that will be used to store the container's info file.
$physical_path_info_file = CONTAINER_PATH . '/';
if ($use_uuid) {
$uuid = uniqid() . '-' . time();
$physical_path_info_file .= $uuid . '-';
}
if ($virtual_subfolder !== NULL) {
$physical_path_info_file .= fmSubstitute($virtual_subfolder, '/', '-') . '-';
}
$physical_path_info_file .= $filename . '.info';
// fmDump ( $physical_path_info_file, TRUE, 'physical_path_info_file' );
// Prepare the contents of the info file.
$info_file_contents = $container_field_as_text . "\n";
$info_file_contents .= $maximum_age . "\n";
$info_file_contents .= $access_rule . "\n";
// Save the info file.
@file_put_contents($physical_path_info_file, $info_file_contents);
// Create the virtual URL that will be used to serve up the file.
$virtual_url = HTTP_ROOT_URL . CONTAINER_FOLDER . '/';
if ($use_uuid) {
$virtual_url .= fmSubstitute($uuid, '-', '/') . '/';
}
if ($virtual_subfolder !== NULL) {
$virtual_url .= fmSubstitute($virtual_subfolder, '-', '/') . '/';
}
$virtual_url .= $filename;
// fmDump ( $virtual_url, TRUE, 'virtual_url' );
// Return the URL to the caller.
return $virtual_url;
}