Hello PHP World After many Hours of worryness :=)
I have found the Solution for Resume or Pause Uploads
In this Code Snippet it is the Server Side not Client on any Desktop Programm you must use byte ranges to calculate the uploaded bytes and missing of total bytes.
Here the PHP Code
<?php
$CHUNK = 8192;
try {
if (!($putData = fopen("php://input", "r")))
throw new Exception("Can't get PUT data.");
// now the params can be used like any other variable
// see below after input has finished
$tot_write = 0;
$tmpFileName = "/var/dev/tmp/PUT_FILE";
// Create a temp file
if (!is_file($tmpFileName)) {
fclose(fopen($tmpFileName, "x")); //create the file and close it
// Open the file for writing
if (!($fp = fopen($tmpFileName, "w")))
throw new Exception("Can't write to tmp file");
// Read the data a chunk at a time and write to the file
while ($data = fread($putData, $CHUNK)) {
$chunk_read = strlen($data);
if (($block_write = fwrite($fp, $data)) != $chunk_read)
throw new Exception("Can't write more to tmp file");
$tot_write += $block_write;
}
if (!fclose($fp))
throw new Exception("Can't close tmp file");
unset($putData);
} else {
// Open the file for writing
if (!($fp = fopen($tmpFileName, "a")))
throw new Exception("Can't write to tmp file");
// Read the data a chunk at a time and write to the file
while ($data = fread($putData, $CHUNK)) {
$chunk_read = strlen($data);
if (($block_write = fwrite($fp, $data)) != $chunk_read)
throw new Exception("Can't write more to tmp file");
$tot_write += $block_write;
}
if (!fclose($fp))
throw new Exception("Can't close tmp file");
unset($putData);
}
// Check file length and MD5
if ($tot_write != $file_size)
throw new Exception("Wrong file size");
$md5_arr = explode(' ', exec("md5sum $tmpFileName"));
$md5 = $md5sum_arr[0];
if ($md5 != $md5sum)
throw new Exception("Wrong md5");
} catch (Exception $e) {
echo '', $e->getMessage(), "\n";
}
?>
Soporte del método PUT
PHP ofrece soporte para el método HTTP PUT utilizado por algunos clientes para almacenar archivos en un servidor. Las peticiones PUT son mucho más simples que una carga de archivos mediante solicitudes POST y se ven algo como esto:
PUT /path/filename.html HTTP/1.1
Esto normalmente significa que el cliente remoto quiere guardar el contenido que sigue como: /path/filename.html en el árbol web. Obviamente no es una buena idea para Apache o PHP dejar automáticamente a todo el mundo que pueda sobrescribir cualquier archivo del árbol web. Para manejar esta solicitud se debe primero decir al servidor web que se desea que cierto script de PHP maneje la petición. En Apache se hace esto con la directiva de Script. Se puede colocar casi en cualquier parte del archivo de configuración de Apache. Un lugar común es dentro de un bloque <Directory> o tal vez dentro de un bloque <VirtualHost>. Una línea como ésta haría el truco:
Script PUT /put.php
Esto le dice a Apache que envíe todas peticiones PUT para URIs que coincidan con el contexto en el cual se pone esta línea en el script put.php. Esto asume, por supuesto, que se tiene habilitado PHP para la extensión .php y que PHP está activo. El recurso de destino para todas las solicitudes PUT a este script tiene que ser en propio script, el archivo subido no debe tener un nombre de archivo.
Con PHP entonces se haría algo como lo siguiente en el put.php. Esto copiaría el contenido del archivo subido al archivo myputfile.ext en el servidor. Es probable que se deseen realizar algunas verificaciones y/o autenticar al usuario antes de realizar esta copia de archivo.
Ejemplo #1 Guardando archivos HTTP PUT
<?php
/* datos PUT vienen en en el flujo de entrada estándar */
$putdata = fopen("php://input", "r");
/* Abre un archivo para escribir */
$fp = fopen("myputfile.ext", "w");
/* Leer los datos de 1 KB a la vez
y escribir en el archivo */
while ($data = fread($putdata, 1024))
fwrite($fp, $data);
/* Cerrar los flujos */
fclose($fp);
fclose($putdata);
?>
I have spent a lot of time trying to make PUT work with Apache 2.0.40. I have not yet been able to find any way of making the Script directive invoke php via mod_php, the only way has been to have a file called example.cgi and invoke it via CGI, with the file starting
#!/usr/bin/php
so the PHP interpreter is invoked through the CGI mechanism and not as a module.
If there IS a way of making it work 'right' I'd love to know! After six hours of messing around, I've settled for CGI. The error messages in the apache error log are significantly misleading and the whole thing has been an exercise in frustration.
Attempts to use AddHandler and all 'normal' ways of trying to persuade Apache to do this have been fruitless. It does seem as if PUT can only be handled by CGI invocation.
PUT raw data comes in php://input, and you have to use fopen() and fread() to get the content. file_get_contents() is useless.
The HTTP PUT request MUST contain a Content-Length header to specify the length (in bytes) of the body, or the server will not be able to know when the input stream is over. This is the common problem for many to find the php://input empty if no such header available.
This should make PUT work properly on win32 using PHP5.1.1 and apache2.
NOTE: The <Script>-Directive can not be placed in .htaccess files.
So if you're having shared webspace and no access to the apache-configuration file you will have little chance to make something like this work.
But you can solve the problem, using mod_rewrite (for Apache) - for further information see the documentation at http://httpd.apache.org/docs/2.0/mod/mod_rewrite.html
A Case Study: To set up publishing with Netscape 7.2 Composer to Apache/PHP, no need to use CGI (which I tried unsuccessfully for too long) or to alter Apache's httpd.conf. I needed only to click Publish As, fill in put2disk.php as the filename (where its contents are the below), and fill in that file's dir as the "Publishing address".
XAMPP 1.4.14: Apache/2.0.54 (Win32) mod_ssl/2.0.54 OpenSSL/0.9.7g PHP/5.0.4.
<? // filename: put2disk.php.
//file_put_contents ("get_def.out", print_r (get_defined_vars(), TRUE)); // debugging
// Two slurp methods: (a) didn't work, (b) did.
//$stdin_rsc = fopen("php://input", "r");
//$putdata='';
//while ($putdata .= fread($stdin_rsc, 1024)); // a. Hangs the "Publishing..." dialog.
//while (!feof($stdin_rsc)) $putdata.=fread($stdin_rsc, 8192); // b. Worked, but file_get_contents is faster.
//fclose($stdin_rsc);
// All that's nec:
$putdata=file_get_contents('php://input'); // Not php://stdin! (When the ability to see error messages isn't available, the doc (this manual page) needs to be more accurate.)
file_put_contents("stdin.out",$putdata);
?>
I can only make it work when I am using PHP as CGI, not as an Apache module.
I am using the version of PHP/Apahce that is shipped with Debian/testing.
You have to load the action_module, but not the put_module in Apache config.
Here's my solution on my Note below
The .htacces-File
Options FollowSymLinks
RewriteEngine on
RewriteBase !!!The Path of your PUT-Upload-Folder, relative to the DocumentRoot!!!
RewriteRule ^index\.php$ - [L]
RewriteRule ^(.*)$ index.php?url=$1 [L]
index.php:
<?php
if ($_SERVER['REQUEST_METHOD'] == "PUT")
{ $f = fopen(basename($_SERVER['REQUEST_URI']), "w");
$s = fopen("php://input", "r");
while($kb = fread($s, 1024))
{ fwrite($f, $kb, 1024); }
fclose($f);
fclose($s);
Header("HTTP/1.1 201 Created"); }
elseif ($_SERVER['REQUEST_METHOD'] == "GET")
{ readfile(basename($_SERVER['REQUEST_URI'])); }
?>
Testes with Apache 2 and PHP 5, php as a module (win32)
Trying to capture a PUT stream into a single variable seems not to be allowed, probably because of the non presence of some kind of EOF. In this way save a PUT request into a database isn't easy.
The only way I find would be output to a cache file, then either insert filename into db or read again its content and place it in some kind of query.
