diff options
Diffstat (limited to 'download.inc')
| -rwxr-xr-x | download.inc | 211 |
1 files changed, 211 insertions, 0 deletions
diff --git a/download.inc b/download.inc new file mode 100755 index 0000000..1f27c5b --- /dev/null +++ b/download.inc @@ -0,0 +1,211 @@ +<?php +// $Id$ + +function textbook_companion_download_example_file() +{ + $example_file_id = arg(2); + $root_path = textbook_companion_path(); + + $example_files_q = db_query("SELECT * FROM {textbook_companion_example_files} WHERE id = %d LIMIT 1", $example_file_id); + $example_file_data = db_fetch_object($example_files_q); + header('Content-Type: ' . $example_file_data->filemime); + header('Content-disposition: attachment; filename="' . $example_file_data->filename . '"'); + header('Content-Length: ' . filesize($root_path . $example_file_data->filepath)); + readfile($root_path . $example_file_data->filepath); +} + +function textbook_companion_download_dependency_file() +{ + $dependency_file_id = arg(2); + $root_path = textbook_companion_path(); + + $dependency_file_q = db_query("SELECT * FROM {textbook_companion_dependency_files} WHERE id = %d LIMIT 1", $dependency_file_id); + $dependency_file_data = db_fetch_object($dependency_file_q); + header('Content-Type: ' . $dependency_file_data->filemime); + header('Content-disposition: attachment; filename="' . $dependency_file_data->filename . '"'); + header('Content-Length: ' . filesize($root_path . $dependency_file_data->filepath)); + ob_clean(); + readfile($root_path . $dependency_file_data->filepath); + exit; +} + +function textbook_companion_download_example() +{ + $example_id = arg(2); + $root_path = textbook_companion_path(); + + /* get example data */ + $example_q = db_query("SELECT * FROM {textbook_companion_example} WHERE id = %d", $example_id); + $example_data = db_fetch_object($example_q); + $chapter_q = db_query("SELECT * FROM {textbook_companion_chapter} WHERE id = %d", $example_data->chapter_id); + $chapter_data = db_fetch_object($chapter_q); + $example_files_q = db_query("SELECT * FROM {textbook_companion_example_files} WHERE example_id = %d", $example_id); + $example_dependency_files_q = db_query("SELECT * FROM {textbook_companion_example_dependency} WHERE example_id = %d", $example_id); + + $EX_PATH = 'EX' . $example_data->number . '/'; + + /* zip filename */ + $zip_filename = $root_path . 'zip-' . time() . '-' . rand(0, 999999) . '.zip'; + + /* creating zip archive on the server */ + $zip = new ZipArchive; + $zip->open($zip_filename, ZipArchive::CREATE); + + while ($example_files_row = db_fetch_object($example_files_q)) + { + $zip->addFile($root_path . $example_files_row->filepath, $EX_PATH . $example_files_row->filename); + } + /* dependency files */ + while ($example_dependency_files_row = db_fetch_object($example_dependency_files_q)) + { + $dependency_file_data = db_fetch_object(db_query("SELECT * FROM {textbook_companion_dependency_files} WHERE id = %d LIMIT 1", $example_dependency_files_row->dependency_id)); + if ($dependency_file_data) + $zip->addFile($root_path . $dependency_file_data->filepath, $EX_PATH . 'DEPENDENCIES/' . $dependency_file_data->filename); + } + $zip_file_count = $zip->numFiles; + $zip->close(); + + if ($zip_file_count > 0) + { + /* download zip file */ + header('Content-Type: application/zip'); + header('Content-disposition: attachment; filename="EX' . $example_data->number . '.zip"'); + header('Content-Length: ' . filesize($zip_filename)); + readfile($zip_filename); + unlink($zip_filename); + } else { + drupal_set_message("There are no files in this examples to download", 'error'); + drupal_goto('textbook_run'); + } +} + +function textbook_companion_download_chapter() +{ + $chapter_id = arg(2); + $root_path = textbook_companion_path(); + + /* get example data */ + $chapter_q = db_query("SELECT * FROM {textbook_companion_chapter} WHERE id = %d", $chapter_id); + $chapter_data = db_fetch_object($chapter_q); + $CH_PATH = 'CH' . $chapter_data->number . '/'; + + /* zip filename */ + $zip_filename = $root_path . 'zip-' . time() . '-' . rand(0, 999999) . '.zip'; + + /* creating zip archive on the server */ + $zip = new ZipArchive; + $zip->open($zip_filename, ZipArchive::CREATE); + + $example_q = db_query("SELECT * FROM {textbook_companion_example} WHERE chapter_id = %d AND approval_status = 1", $chapter_id); + while ($example_row = db_fetch_object($example_q)) + { + $EX_PATH = 'EX' . $example_row->number . '/'; + $example_files_q = db_query("SELECT * FROM {textbook_companion_example_files} WHERE example_id = %d", $example_row->id); + $example_dependency_files_q = db_query("SELECT * FROM {textbook_companion_example_dependency} WHERE example_id = %d", $example_row->id); + while ($example_files_row = db_fetch_object($example_files_q)) + { + $zip->addFile($root_path . $example_files_row->filepath, $CH_PATH . $EX_PATH . $example_files_row->filename); + } + /* dependency files */ + while ($example_dependency_files_row = db_fetch_object($example_dependency_files_q)) + { + $dependency_file_data = db_fetch_object(db_query("SELECT * FROM {textbook_companion_dependency_files} WHERE id = %d LIMIT 1", $example_dependency_files_row->dependency_id)); + if ($dependency_file_data) + $zip->addFile($root_path . $dependency_file_data->filepath, $CH_PATH . $EX_PATH . 'DEPENDENCIES/' . $dependency_file_data->filename); + } + } + $zip_file_count = $zip->numFiles; + $zip->close(); + + if ($zip_file_count > 0) + { + /* download zip file */ + header('Content-Type: application/zip'); + header('Content-disposition: attachment; filename="CH' . $chapter_data->number . '.zip"'); + header('Content-Length: ' . filesize($zip_filename)); + readfile($zip_filename); + unlink($zip_filename); + } else { + drupal_set_message("There are no examples in this chapter to download", 'error'); + drupal_goto('textbook_run'); + } +} + +function textbook_companion_download_book() +{ + $book_id = arg(2); + $root_path = textbook_companion_path(); + /* get example data */ + $book_q = db_query("SELECT * FROM {textbook_companion_preference} WHERE id = %d", $book_id); + $book_data = db_fetch_object($book_q); + $zipname = str_replace(' ','_',($book_data->book)); + $BK_PATH = $zipname . '/'; + + /* zip filename */ + $zip_filename = $root_path . 'zip-' . time() . '-' . rand(0, 999999) . '.zip'; + + /* creating zip archive on the server */ + $zip = new ZipArchive; + $zip->open($zip_filename, ZipArchive::CREATE); + + $chapter_q = db_query("SELECT * FROM {textbook_companion_chapter} WHERE preference_id = %d", $book_id); + while ($chapter_row = db_fetch_object($chapter_q)) + { + $CH_PATH = 'CH' . $chapter_row->number . '/'; + $example_q = db_query("SELECT * FROM {textbook_companion_example} WHERE chapter_id = %d AND approval_status = 1", $chapter_row->id); + while ($example_row = db_fetch_object($example_q)) + { + $EX_PATH = 'EX' . $example_row->number . '/'; + $example_files_q = db_query("SELECT * FROM {textbook_companion_example_files} WHERE example_id = %d", $example_row->id); + $example_dependency_files_q = db_query("SELECT * FROM {textbook_companion_example_dependency} WHERE example_id = %d", $example_row->id); + while ($example_files_row = db_fetch_object($example_files_q)) + { + $zip->addFile($root_path . $example_files_row->filepath, $BK_PATH . $CH_PATH . $EX_PATH . $example_files_row->filename); + } + /* dependency files */ + while ($example_dependency_files_row = db_fetch_object($example_dependency_files_q)) + { + $dependency_file_data = db_fetch_object(db_query("SELECT * FROM {textbook_companion_dependency_files} WHERE id = %d LIMIT 1", $example_dependency_files_row->dependency_id)); + if ($dependency_file_data) + $zip->addFile($root_path . $dependency_file_data->filepath, $BK_PATH . $CH_PATH . $EX_PATH . 'DEPENDENCIES/' . $dependency_file_data->filename); + } + $query = "SELECT * FROM textbook_companion_dependency_files WHERE preference_id = %d"; + $result = db_query($query, $book_id); + while($row = db_fetch_object($result)) { + $zip->addFile($root_path . $row->filepath, $BK_PATH . 'DEPENDENCIES/' . $row->filename); + } + } + } + $zip_file_count = $zip->numFiles; + $zip->close(); + + if ($zip_file_count > 0) + { + /* download zip file */ + global $user; + if($user->uid){ + header('Content-Type: application/zip'); + header('Content-disposition: attachment; filename="' . str_replace(' ','_',($book_data->book)) . '.zip"'); + header('Content-Length: ' . filesize($zip_filename)); + ob_clean(); + readfile($zip_filename); + unlink($zip_filename); + }else{ + header('Content-Type: application/zip'); + header('Content-disposition: attachment; filename="' . str_replace(' ','_',($book_data->book)) . '.zip"'); + header('Content-Length: ' . filesize($zip_filename)); + header("Content-Transfer-Encoding: binary"); + header('Expires: 0'); + header('Pragma: no-cache'); + ob_end_flush(); + ob_clean(); + flush(); + readfile($zip_filename); + unlink($zip_filename); + } + } else { + drupal_set_message("There are no examples in this book to download", 'error'); + drupal_goto('textbook_run'); + } +} + |