Home arrow PHP arrow Page 9 - Stream Me Up, Scotty! (part 1)

Appendix: Code Listing - PHP

PHP4 comes with a bunch of new functions designed to allow FTPconnections over the Web. This article explores the new FTP functions,together with an example of how they can be used to build a browser-basedFTP client.

TABLE OF CONTENTS:
  1. Stream Me Up, Scotty! (part 1)
  2. Out With The Old...
  3. ...In With The New
  4. Where Am I?
  5. GETting It Right
  6. Start Me Up!
  7. Lights! Camera! Action!
  8. Well-Formed Ideas
  9. Appendix: Code Listing
By: Vikram Vaswani, (c) Melonfire
Poor Best
Rating: starstarstarstarstar / 4
November 07, 2000

print this article
SEARCH DEV SHED

TOOLS YOU CAN USE

advertisement
 

<!-- code for index.html begins here -->
<html>
<head>
<basefont face=arial>
</head>
<body>
<table border=0 align=center>
<form action="actions.php4" method=post>
<input type=hidden name=action value=CWD>
<tr>
<td>
Server
</td>
<td>
<input type=text name=server>
</td>
</tr>
<tr>
<td>
User
</td>
<td>
<input type=text name=username>
</td>
</tr>
<tr>
<td>
Password
</td>
<td>
<input type=password name=password>
</td>
</tr>
<tr>
<td colspan=2 align=center>
<input type="submit" value="Beam Me Up, Scotty!">
</td>
</tr>
</form>
</table>
</body>
</html>
<!-- code for index.html ends here -->


<!-- code for actions.php4 begins here -->
<html>
<head>
<basefont face=Arial>
</head>
<body>
<?
/*
DISCLAIMER:

This is use-at-your-own-risk code.

It is meant only for illustrative purposes and is not meant for production environments. No warranties of any kind are provided to the user.

You have been warned!

All code copyright Melonfire, 2000. Visit us at http://www.melonfire.com 

*/
// function to connect to FTP server
function connect()
{
global $server, $username, $password;
$conn = ftp_connect($server);
ftp_login($conn, $username, $password);
return $conn;
}
// main program begins
// check for valid form entries else print error
if (!$server || !$username || !$password)
{
echo "Form data incomplete!";
}
else
{
// connect
$result = connect();
// action: change directory
if ($action == "CWD")
{
// at initial stage $rdir does not exist
// so assume default directory
if (!$rdir)
{
$path = ".";
}
// get current location $cdir and add it to requested directory $rdir
else
{
$path = $cdir . "/" . $rdir;
}
// change to requested directory
ftp_chdir($result, $path);
}
// action: delete file(s)
else if ($action == "Delete")
{
ftp_chdir($result, $cdir);
// loop through selected files and delete
for ($x=0; $x<sizeof($dfile); $x++)
{
ftp_delete($result, $cdir . "/" . $dfile[$x]);
}
}
// action: download files
else if ($action == "Download")
{
ftp_chdir($result, $cdir);
// download selected files
// IMPORTANT: you should specify a different download location here!!
for ($x=0; $x<sizeof($dfile); $x++)
{
ftp_get($result, $dfile[$x], $dfile[$x], FTP_BINARY);
}
}
// action: upload file
else if ($action == "Upload")
{
ftp_chdir($result, $cdir);
// put file
/*
a better idea would be to use
$res_code = ftp_put($result, $HTTP_POST_FILES["upfile"]["name"],
$HTTP_POST_FILES["upfile"]["tmp_name"], FTP_BINARY);
as it offers greater security
*/
$res_code = ftp_put($result, $upfile_name, $upfile, FTP_BINARY);
// check status and display
if ($res_code == 1)
{
$status = "Upload successful!";
}
else
{
$status = "Upload error!";
}
}
// create file list
$filelist = ftp_nlist($result, ".");
// and display interface
include("include.php4");
// close connection
ftp_quit($result);
}
?>
</body>
</html>
<!-- code for actions.php4 ends here -->


<!-- code for include.php4 begins here -->
<?
// get current location
$here = ftp_pwd($result);
/*
since ftp_size() is quite slow, especially when working
on an array containing all the files in a directory,
this section performs an ftp_size() on all the files in the current
directory and creates three arrays.
*/
// array for files
$files = Array();
// array for directories
$dirs = Array();
// array for file sizes
$file_sizes = Array();
// counters
$file_list_counter = 0;
$dir_list_counter = 0;
// check each element of $filelist
for ($x=0; $x<sizeof($filelist); $x++)
{
if (ftp_size($result, $filelist[$x]) != -1)
{
// create arrays
$files[$file_list_counter] = $filelist[$x];
$file_sizes[$file_list_counter] = ftp_size($result, $filelist[$x]);
$file_list_counter++;
}
else
{
$dir_list[$dir_list_counter] = $filelist[$x];
$dir_list_counter++;
}
}
?>
<!-- header - where am I? -->
<center>
You are currently working in <b><? echo $here; ?></b>
<br>
<!-- status message for upload function -->
<? echo $status; ?>
</center>
<hr>
<p>
<!-- directory listing in drop-down list -->
Available directories:
<form action=actions.php4 method=post>
<!-- these values are passed hidden every time -->
<!-- a more optimal solution might be to place these in session
variables -->
<input type=hidden name=username value=<? echo $username; ?>>
<input type=hidden name=password value=<? echo $password; ?>>
<input type=hidden name=server value=<? echo $server; ?>>
<input type=hidden name=cdir value=<? echo $here; ?>>
<!-- action to take when THIS form is submitted -->
<input type=hidden name=action value=CWD>
<!-- dir listing begins; first item is for parent dir -->
<select name=rdir>
<option value=".."><parent directory></option>
<?
for ($x=0; $x<sizeof($dir_list); $x++)
{
echo "<option value=" . $dir_list[$x] . ">" . $dir_list[$x] . "</option>";
}
?>
</select>
<input type=submit value=Go>
</form>
<hr>
<!-- file listing begins -->
Available files:
<form action=actions.php4 method=post>
<!-- these values are passed hidden every time -->
<input type=hidden name=server value=<? echo $server; ?>>
<input type=hidden name=username value=<? echo $username; ?>>
<input type=hidden name=password value=<? echo $password; ?>>
<input type=hidden name=cdir value=<? echo $here; ?>>
<table border=0 width=100%>
<?
// display file listing with checkboxes and sizes
for ($y=0; $y<sizeof($files); $y++)
{
echo "<tr><td><input type=checkbox name=dfile[] value=" . $files[$y] .
">". $files[$y] . " <i>(" . $file_sizes[$y] . " bytes)</i><td>";
}
?>
</table>
<!-- actions for this form -->
<center>
<input type=submit name=action value=Delete>  
<input type=submit name=action value=Download>
</center>
</form>
<p>
<hr>
<!-- file upload form -->
File upload:
<form enctype="multipart/form-data" action=actions.php4 method=post>
<!-- these values are passed hidden every time -->
<input type=hidden name=username value=<? echo $username; ?>>
<input type=hidden name=password value=<? echo $password; ?>>
<input type=hidden name=server value=<? echo $server; ?>>
<input type=hidden name=cdir value=<? echo $here; ?>>
<table>
<tr>
<td>
<!-- file selection box -->
<input type=file name=upfile>
</td>
</tr>
<tr>
<td>
<!-- action for this form -->
<input type=submit name=action value=Upload>
</td>
</tr>
</table>
</form>
<!-- code for include.php4 ends here -->


This article copyright Melonfire 2000. All rights reserved.


 
 
>>> More PHP Articles          >>> More By Vikram Vaswani, (c) Melonfire
 

blog comments powered by Disqus
   

PHP ARTICLES

- PHP Closures as View Helpers: Lazy-Loading F...
- Using PHP Closures as View Helpers
- PHP File and Operating System Program Execut...
- PHP: Effects of Wrapping Code in Class Const...
- PHP: Building Concrete Validators
- Sanitizing Input with PHP
- Executing Shell Commands with PHP
- Handling File Data with PHP
- File Security and Resources with PHP
- ArrayObject PHP Class Examples
- ArrayObject PHP Class: An Introduction
- Getting File System Data with PHP
- PHP Tools for Working with the File and Oper...
- Working with the File and Operating System w...
- PHP Proxy Patterns: Completing a Blog
Find More PHP Articles


© 2003-2012 by Developer Shed. All rights reserved. DS Cluster 7 - Follow our Sitemap

Dev Shed Tutorial Topics: