Created
December 6, 2014 19:12
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Quickly coded zip importer in PHP with multiple methods, including one with chunking and auto-reloading for webhosts with agressive limits
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| <?php // Import a zip file and extract it | |
| $custom_max_time = 10; | |
| $custom_wait_time = 45; | |
| $random_wait_time = 5; // plus or minus this value. Set to 0 or false to disable. | |
| $time_start = time(); | |
| $max_time = ini_get("max_execution_time"); | |
| $wait_time = 5; | |
| if (!empty($custom_max_time) and $custom_max_time > 0 and $custom_max_time < $max_time) $max_time = $custom_max_time; | |
| if (!empty($custom_wait_time) and $custom_wait_time > 0) $wait_time = $custom_wait_time; | |
| $url = $_POST['url']; | |
| // get the absolute path to file url | |
| $url = pathinfo(realpath($url), PATHINFO_DIRNAME).'/'.$url; | |
| $name = $_POST['name']; | |
| if (isset($_POST['unzip'])) { | |
| $zip = new ZipArchive; | |
| $res = $zip->open("$url"); | |
| if ($res === TRUE) { | |
| $zip->extractTo('./'); | |
| $zip->close(); | |
| echo "zip file extracted!"; | |
| } else { | |
| echo "ERROR: FILE NOT EXTRACTED!"; | |
| } | |
| } elseif (isset($_POST['import'])) { | |
| copy("$url","./$name"); | |
| } elseif (isset($_POST['unzip_chunks'])) { | |
| $filename = $url; | |
| $archive = zip_open($filename); | |
| while($entry = zip_read($archive)){ | |
| $size = zip_entry_filesize($entry); | |
| $name = zip_entry_name($entry); | |
| $unzipped = fopen('./'.$name,'wb'); | |
| while($size > 0){ | |
| $chunkSize = ($size > 10240) ? 10240 : $size; | |
| $size -= $chunkSize; | |
| $chunk = zip_entry_read($entry, $chunkSize); | |
| if($chunk !== false) fwrite($unzipped, $chunk); | |
| } | |
| fclose($unzipped); | |
| } | |
| } elseif (isset($_POST['unzip_chunks2']) or isset($_GET['unzip_chunks2'])) { | |
| $orig_url = $_POST['url']; | |
| if (empty($orig_url)) { | |
| $orig_url = $_GET['url']; | |
| } | |
| if (isset($_GET['unzip_chunks2'])) { | |
| $url = $_GET['url']; | |
| $url = pathinfo(realpath($url), PATHINFO_DIRNAME).'/'.$url; | |
| } | |
| if (isset($_GET['last_index'])) { | |
| $last_index = $_GET['last_index']; | |
| } else { | |
| $last_index = 0; | |
| } | |
| $zip = new ZipArchive; | |
| if ($zip->open($url) === true) { | |
| //make all the folders | |
| if (!empty($last_index)) { | |
| for($i = 0; $i < $zip->numFiles; $i++) { | |
| $OnlyFileName = $zip->getNameIndex($i); | |
| $FullFileName = $zip->statIndex($i); | |
| if ($FullFileName['name'][strlen($FullFileName['name'])-1] =="/") { | |
| @mkdir("./".$FullFileName['name'],0700,true); | |
| } | |
| } | |
| } | |
| //unzip into the folders | |
| for($i = $last_index; $i < $zip->numFiles; $i++) { | |
| if ( (time() - $time_start) > ($max_time-5) ) { | |
| $zip->close(); | |
| $redirect_url = "http://".$_SERVER['HTTP_HOST'].$_SERVER['SCRIPT_NAME'].'?unzip_chunks2=true&url='.$orig_url.'&last_index='.$i; | |
| $w_time = $wait_time; | |
| if ($random_wait_time > 0) $w_time = $wait_time + rand(1, $random_wait_time); | |
| ?> | |
| <html> | |
| <head> | |
| <meta http-equiv="refresh" content="<?php print($w_time) ?>; url=<?php print($redirect_url); ?>" /> | |
| </head> | |
| <body> | |
| The unzipping takes too much time, I have to split the work in several calls. You should be automatically redirected in <?php print($w_time) ?> seconds, if not, please <a href="<?php print($redirect_url); ?>">click here to continue the unzipping</a>. | |
| </body> | |
| </html> | |
| <?php | |
| exit(); // make sure we stop processing here | |
| } | |
| $OnlyFileName = $zip->getNameIndex($i); | |
| $FullFileName = $zip->statIndex($i); | |
| if (!($FullFileName['name'][strlen($FullFileName['name'])-1] =="/")) { | |
| copy('zip://'. $url .'#'. $OnlyFileName , "./".$FullFileName['name'] ); | |
| } | |
| } | |
| $zip->close(); | |
| } else { | |
| echo "Error: Can't open zip file: ".$url; | |
| } | |
| } | |
| ?> | |
| <html> | |
| <u><b>IMPORT</u></b><br /> | |
| <form method="post" action="">URL:<br /><input type="text" name="url"><br />SAVE AS:<br /><input name="name"><br /><input type="submit" name="import"></form> | |
| <br /><u><b>UNZIP</u></b><br />*make sure zip file is inside public_html folder<br /> | |
| <form method="post" action="">FILE:<br /><input type="text" name="url" value="file.zip"><br /><input type="submit" name="unzip"></form> | |
| <u><b>UNZIP BY CHUNKS</u></b><br />*make sure zip file is inside public_html folder<br /> | |
| <form method="post" action="">FILE:<br /><input type="text" name="url" value="file.zip"><br /><input type="submit" name="unzip_chunks"></form> | |
| <u><b>UNZIP BY CHUNKS 2</u></b><br />*make sure zip file is inside public_html folder<br /> | |
| <form method="post" action="">FILE:<br /><input type="text" name="url" value="file.zip"><br /><input type="submit" name="unzip_chunks2"></form> | |
| </html> |
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