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-rwxr-xr-xlatex.inc213
1 files changed, 213 insertions, 0 deletions
diff --git a/latex.inc b/latex.inc
new file mode 100755
index 0000000..f904ec1
--- /dev/null
+++ b/latex.inc
@@ -0,0 +1,213 @@
+<?php
+
+function textbook_companion_download_book()
+{
+ $preference_id = arg(2);
+ _latex_copy_script_file();
+ $full_book = arg(3);
+ if ($full_book == "1")
+ _latex_generate_files($preference_id, TRUE);
+ else
+ _latex_generate_files($preference_id, FALSE);
+}
+
+function _latex_generate_files($preference_id, $full_book = FALSE)
+{
+ $root_path = textbook_companion_path();
+ $dir_path = $root_path . "latex/";
+
+ $book_filedata = "";
+ $contributor_filedata = "";
+ $latex_filedata = "";
+ $latex_dep_filedata = "";
+
+ $depedency_list = array();
+
+ $eol = "\n";
+ $sep = "#";
+
+ $preference_q = db_query("SELECT * FROM {textbook_companion_preference} WHERE id = %d", $preference_id);
+ $preference_data = db_fetch_object($preference_q);
+ if (!$preference_data)
+ {
+ drupal_set_message('Invalid book specified.', 'error');
+ drupal_goto('');
+ }
+ if ($preference_data->approval_status == 0)
+ {
+ drupal_set_message('Book proposal is still in pending review.', 'error');
+ drupal_goto('');
+ }
+ $book_filedata = $preference_data->book . $sep . $preference_data->author . $sep . $preference_data->isbn . $sep . $preference_data->publisher . $sep . $preference_data->edition . $sep . $preference_data->year . $eol;
+
+ /* regenerate book if full book selected */
+ if ($full_book)
+ del_book_pdf($preference_data->id);
+
+ /* check if book already generated */
+ if (file_exists($dir_path . "book_" . $preference_data->id . ".pdf"))
+ {
+ /* download zip file */
+ header('Content-Type: application/pdf');
+ header('Content-disposition: attachment; filename="' . $preference_data->book . '_' . $preference_data->author . '.pdf"');
+ header('Content-Length: ' . filesize($dir_path . "book_" . $preference_data->id . ".pdf"));
+ header("Content-Transfer-Encoding: binary");
+ header('Expires: 0');
+ header('Pragma: no-cache');
+ ob_end_flush();
+ ob_clean();
+ flush();
+
+ readfile($dir_path . "book_" . $preference_data->id . ".pdf");
+ return;
+ }
+
+ $proposal_q = db_query("SELECT * FROM {textbook_companion_proposal} WHERE id = %d", $preference_data->proposal_id);
+ $proposal_data = db_fetch_object($proposal_q);
+ if (!$proposal_data)
+ {
+ drupal_set_message('Could not fetch contributors information for the book specified.', 'error');
+ }
+ $contributor_filedata .= $proposal_data->full_name . $sep . $proposal_data->course . $sep . $proposal_data->branch . $sep . $proposal_data->university . $sep . $proposal_data->faculty . $sep . $proposal_data->reviewer . $eol;
+
+ $chapter_q = db_query("SELECT * FROM {textbook_companion_chapter} WHERE preference_id = %d ORDER BY number DESC", $preference_data->id);
+ while ($chapter_data = db_fetch_object($chapter_q))
+ {
+ if ($full_book)
+ $example_q = db_query("SELECT * FROM {textbook_companion_example} WHERE chapter_id = %d ORDER BY number DESC", $chapter_data->id);
+ else
+ $example_q = db_query("SELECT * FROM {textbook_companion_example} WHERE chapter_id = %d AND approval_status = 1 ORDER BY number DESC", $chapter_data->id);
+ while ($example_data = db_fetch_object($example_q))
+ {
+ $example_files_q = db_query("SELECT * FROM {textbook_companion_example_files} WHERE example_id = %d", $example_data->id);
+ while ($example_files_data = db_fetch_object($example_files_q))
+ {
+ $latex_filedata .= $chapter_data->number . $sep;
+ $latex_filedata .= $chapter_data->name . $sep;
+ $latex_filedata .= $example_data->number . $sep;
+ $latex_filedata .= $example_data->caption . $sep;
+ $latex_filedata .= $example_files_data->filename . $sep;
+ $latex_filedata .= $example_files_data->filepath . $sep;
+ $latex_filedata .= $example_files_data->filetype . $sep;
+ $latex_filedata .= $sep;
+ $latex_filedata .= $example_files_data->id;
+ $latex_filedata .= $eol;
+ }
+ $dependency_files_q = db_query("SELECT * FROM {textbook_companion_example_dependency} WHERE example_id = %d", $example_data->id);
+ while ($dependency_files_data = db_fetch_object($dependency_files_q))
+ {
+ $dependency_q = db_query("SELECT * FROM {textbook_companion_dependency_files} WHERE id = %d LIMIT 1", $dependency_files_data->dependency_id);
+ if ($dependency_data = db_fetch_object($dependency_q))
+ {
+ $latex_filedata .= $chapter_data->number . $sep;
+ $latex_filedata .= $chapter_data->name . $sep;
+ $latex_filedata .= $example_data->number . $sep;
+ $latex_filedata .= $example_data->caption . $sep;
+ $latex_filedata .= $dependency_data->filename . $sep;
+ $latex_filedata .= $dependency_data->filepath . $sep;
+ $latex_filedata .= 'D' . $sep;
+ $latex_filedata .= $dependency_data->caption . $sep;
+ $latex_filedata .= $dependency_data->id;
+ $latex_filedata .= $eol;
+
+ $depedency_list[$dependency_data->id] = "D";
+ }
+ }
+ }
+ }
+
+ foreach ($depedency_list as $row => $data) {
+ $dependency_q = db_query("SELECT * FROM {textbook_companion_dependency_files} WHERE id = %d LIMIT 1", $row);
+ if ($dependency_data = db_fetch_object($dependency_q))
+ {
+ $latex_dep_filedata .= $dependency_data->filename . $sep;
+ $latex_dep_filedata .= $dependency_data->filepath . $sep;
+ $latex_dep_filedata .= $dependency_data->caption . $sep;
+ $latex_dep_filedata .= $dependency_data->id;
+ $latex_dep_filedata .= $eol;
+ }
+ }
+
+ /**************************** WRITE TO FILES ********************************/
+ $download_filename = $preference_data->book . "_" . $preference_data->author;
+ $book_filename = "tmp_" . $preference_data->id . "_book.txt";
+ $contributor_filename = "tmp_" . $preference_data->id . "_contributor.txt";
+ $latex_filename = "tmp_" . $preference_data->id . "_data.txt";
+ $latex_dep_filename = "tmp_" . $preference_data->id . "_dep_data.txt";
+ $pdf_filename = "book_" . $preference_data->id . ".pdf";
+
+ // $book_filedata = str_replace("&", "\&", $book_filedata);
+ $fb = fopen($dir_path . $book_filename, 'w');
+ fwrite($fb, $book_filedata);
+ fclose($fb);
+
+ // $contributor_filedata = str_replace("&", "\&", $contributor_filedata);
+ $fc = fopen($dir_path . $contributor_filename, 'w');
+ fwrite($fc, $contributor_filedata);
+ fclose($fc);
+
+ $fl = fopen($dir_path . $latex_filename, 'w');
+ fwrite($fl, $latex_filedata);
+ fclose($fl);
+
+ $fd = fopen($dir_path . $latex_dep_filename, 'w');
+ fwrite($fd, $latex_dep_filedata);
+ fclose($fd);
+
+ if (_latex_run_script($book_filename, $contributor_filename, $latex_filename, $latex_dep_filename, $pdf_filename))
+ {
+ /* download zip file */
+ header('Content-Type: application/pdf');
+ header('Content-disposition: attachment; filename="' . $preference_data->book . '_' . $preference_data->author . '.pdf"');
+ header('Content-Length: ' . filesize($dir_path . $pdf_filename));
+ header("Content-Transfer-Encoding: binary");
+ header('Expires: 0');
+ header('Pragma: no-cache');
+ ob_end_flush();
+ ob_clean();
+ flush();
+
+ readfile($dir_path . $pdf_filename);
+ } else {
+ drupal_set_message("Error occurred when generating the PDF version of the Book.", 'error');
+ }
+
+ /*********************** DELETING TEMPORARY FILES ***************************/
+ /* regenerate book if full book selected */
+ if ($full_book)
+ del_book_pdf($preference_data->id);
+}
+
+function _latex_copy_script_file()
+{
+ exec("cp ./" . drupal_get_path('module', 'textbook_companion') . "/latex/* ./uploads/latex");
+ exec("chmod u+x ./uploads/latex/*.sh");
+}
+
+function _latex_run_script($book_filename, $contributor_filename, $latex_filename, $latex_dep_filename, $pdf_filename)
+{
+ $root_path = textbook_companion_path();
+ $ret = 0;
+
+ chdir("uploads");
+ chdir("latex");
+
+ $sh_command = "./latex_test.sh " . $book_filename . " " . $contributor_filename . " " . $latex_filename . " " . $latex_dep_filename;
+ exec($sh_command);
+ exec("mv TEX_final.pdf " . $pdf_filename);
+
+ if ($ret == 0)
+ return TRUE;
+ else
+ return FALSE;
+}
+
+function textbook_companion_delete_book()
+{
+ $book_id = arg(2);
+ del_book_pdf($book_id);
+ drupal_set_message(t('Book schedule for regeneration.'), 'status');
+ drupal_goto('code_approval/bulk');
+ return;
+}
+
generated by cgit (git 2.34.1) at 2024-12-19 11:50:26 +0000