// Uncompresses a known archive identified by $file.
// Returns the path to the folder it created.
string filter_archive_uncompress (string file)
{
int type = filter_archive_is_archive (file);
if (type == 1) {
return filter_archive_untar_gzip (file);
}
if (type == 2) {
return filter_archive_unzip (file);
}
return "";
}
// Imports the file at $path into $resource.
void resource_logic_import_images (string resource, string path)
{
Database_ImageResources database_imageresources;
Database_Logs::log ("Importing: " + filter_url_basename (path));
// To begin with, add the path to the main file to the list of paths to be processed.
vector <string> paths = {path};
while (!paths.empty ()) {
// Take and remove the first path from the container.
path = paths[0];
paths.erase (paths.begin());
string basename = filter_url_basename (path);
string extension = filter_url_get_extension (path);
extension = unicode_string_casefold (extension);
if (extension == "pdf") {
Database_Logs::log ("Processing PDF: " + basename);
// Retrieve PDF information.
filter_shell_run ("", "pdfinfo", {path}, NULL, NULL);
// Convert the PDF file to separate images.
string folder = filter_url_tempfile ();
filter_url_mkdir (folder);
filter_shell_run (folder, "pdftocairo", {"-jpeg", path}, NULL, NULL);
// Add the images to the ones to be processed.
filter_url_recursive_scandir (folder, paths);
} else if (filter_archive_is_archive (path)) {
Database_Logs::log ("Unpacking archive: " + basename);
string folder = filter_archive_uncompress (path);
filter_url_recursive_scandir (folder, paths);
} else {
if (!extension.empty ()) {
basename = database_imageresources.store (resource, path);
Database_Logs::log ("Storing image " + basename );
}
}
}
Database_Logs::log ("Ready importing images");
}
