65 lines
3.0 KiB
PHP
65 lines
3.0 KiB
PHP
<?php
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function test_queue($link) // Function to check if any printer is free and process all jobs in the queue
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{
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$sql = "SELECT id, from_userid, filepath, print_on FROM queue ORDER BY id";
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$stmt = mysqli_prepare($link, $sql);
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mysqli_stmt_execute($stmt);
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mysqli_stmt_store_result($stmt);
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mysqli_stmt_bind_result($stmt, $qid, $quserid, $qfilepath, $print_on);
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while (mysqli_stmt_fetch($stmt)) {
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$num_of_printers = 0;
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if ($print_on == -1)
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$sql_printers = "SELECT COUNT(*) FROM printer";
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else
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$sql_printers = "SELECT COUNT(*) FROM printer WHERE id = $print_on";
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$stmt_printers = mysqli_prepare($link, $sql_printers);
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mysqli_stmt_execute($stmt_printers);
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mysqli_stmt_store_result($stmt_printers);
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mysqli_stmt_bind_result($stmt_printers, $num_of_printers);
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mysqli_stmt_fetch($stmt_printers);
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if ($num_of_printers > 0) {
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$id = 0;
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$papikey = "";
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$purl = "";
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if ($print_on == -1)
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$sql_free_printers = "SELECT id, apikey, printer_url FROM printer WHERE free = 1 ORDER BY id";
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else
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$sql_free_printers = "SELECT id, apikey, printer_url FROM printer WHERE id = $print_on AND free = 1";
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$stmt_free_printers = mysqli_prepare($link, $sql_free_printers);
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mysqli_stmt_execute($stmt_free_printers);
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mysqli_stmt_store_result($stmt_free_printers);
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mysqli_stmt_bind_result($stmt_free_printers, $id, $papikey, $purl);
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if (mysqli_stmt_fetch($stmt_free_printers)) { // Found a free printer
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$username = $_SESSION["username"];
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$curl_cmd = 'curl -k -H "X-Api-Key: ' . $papikey . '" -F "select=true" -F "print=true" -F "file=@' . $qfilepath . '" "' . $purl . '/api/files/local" > /var/www/html/user_files/' . $username . '/json.json';
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exec($curl_cmd);
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$fg = file_get_contents("/var/www/html/user_files/$username/json.json");
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$json = json_decode($fg, true);
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if ($json['effectivePrint'] == true && $json["effectiveSelect"] == true) {
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$sql_update_printer = "UPDATE printer SET free = 0, printing = 1, mail_sent = 0, used_by_userid = $quserid WHERE id = $id";
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$stmt_update_printer = mysqli_prepare($link, $sql_update_printer);
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mysqli_stmt_execute($stmt_update_printer);
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$sql_delete_queue = "DELETE FROM queue WHERE id = $qid";
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$stmt_delete_queue = mysqli_prepare($link, $sql_delete_queue);
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mysqli_stmt_execute($stmt_delete_queue);
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} else {
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echo "Failed sending file to printer for queue ID $qid!";
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}
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} else {
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echo "No free printer available for queue ID $qid!";
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}
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} else {
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echo "No printers available for queue ID $qid!";
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}
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}
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}
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?>
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