Okay so I'm trying to make a script that can edit an external .txt file. I want to be able to do something like /name John Doe and it saves that name in the file that the command is supposed to edit.
Another example would be I have a file called List.txt associated with the command /todo, whenever I do /todo * it adds whatever came after the command to the List.txt file.
Is there any way I can do this in javascript?
You're in luck, it appears that HTML5 actually supports this. Of course you'll have to run it through a browser, I don't know if you can hack it somehow to work from bash.
Yes, its possible to do this by creating an ajax http request to an server server side script that edits the file based on the http request's content.
Heres an example PHP serverside script the handle the ajax request:
Note: This example has a lot of security issues and is untested
<?php
$command = $_POST['command'];
$argument = $_POST['argument'];
if ($command == "name") {
$file = fopen("names.txt", "a");
fwrite($file, $argument."\n");
fclose($file);
} else if ($command == "todo") {
$file = fopen("todo.txt", "a");
fwrite($file, $argument."\n");
fclose($file);
}
?>
There is also a great tutorial on AJAX requests here
They also have a php tutorial on here
ps. sorry it took so long.
Related
I want to disable direct file download to my .zip files.
If my website is the referrer then only download the file.
I am using Apache server
You can try this one which will help you but I will suggest you to research more on this.However you can put the below code for the work.
Also make changes to the below code for the changes.
<?php
// This is to check if the request is coming from a specific domain domain.com
$ref = $_SERVER['HTTP_REFERER'];
$refData = parse_url($ref);
if($refData['host'] !== 'domain.com') {
// Output string and stop execution
die("Hotlinking not permitted");
}
echo "Executing code here";
?>
You need to change your domain above eg. clubapk.com instead of domain.com
How are you? First, sorry about my english :(
I'm triying to upload a file from a URL source like https://www.somedomain/somefolder/someimage.jpg but I'm getting some troubles...
I get this error when I'm triying to set $myFile->setFile('url'):
Catchable Fatal Error: Argument 1 passed to
MyBundle\Entity\File::setFile() must be an instance of
Symfony\Component\HttpFoundation\File\UploadedFile, string given
I've also tried through $content = get_file_contents('url') and then $myFile->setFile($content), but this returns the same error.
On the other hand, it's not a problem if I upload the file with an inputfile box in a form. But I cannot do it by indicating only one URL source (for a CronJob, by the way).
I've read the documentation about Files on Symfony, but I can't get success :(
Can anyone help me with this issue, please?
Thanks a lot! Greetings from Barcelona!! :)
To get rid of this issue you can do this:
<?php
use Symfony\Component\HttpFoundation\File\UploadedFile;
$file = new UploadedFile('url', 'name of the file');
$myFile->setFile($file);
Take a look at UploadedFile
Be sure to provide the correct path to the path. Not sure it will work like this because you want to set the UploadedFile without uploading the file through an input file and without submitting the form. Have a try.
I just upgraded from cakephp 1.1 to 1.3. I have everything on the site updated and working great, except for creating and downloading zip files.
Here is the code in my accounts_controller.php:
function zip() {
$this->checkSession();
$this->checkUpgradedAccount();
$files = array();
$this->layout="zip";
/*
code where I locate the files to zip, combine them, etc
*/
$tmp_file = "/home/[userdirectory]/tmp/".md5(mktime()).".zip"; //directory name edited
$command = "/usr/bin/zip -j $tmp_file ".implode(" ",$zip_files);
exec($command);
foreach($zip_files as $zf) {
unlink($zf);
}
$file_path = $tmp_file;
$this->set("path",$file_path);
$this->render();
}
When I call this action, however, I get an error:
Error: The requested address '/accounts/zip' was not found on this
server.
It worked just like this in version 1.1. I'm assuming something has changed, but I'm not sure what, and was unable to find anything pertinent in the documentation.
The zip.ctp view file does exists, but it has nothing in it other than: <?php ?>
I suspect something is different with layouts. There is NO "zip.ctp" in the /layouts directory. However, I have changed that line to $this->layout('default'); and it renders a blank page with NO ERROR, but also with no download.
Please direct me on the proper way to download my zip file in cake 1.3. Thanks in advance.
You have two different problems here. That error you're getting is because you don't have a zip layout file. As for your problem with getting the zip file, you should be using the media view class - http://book.cakephp.org/1.3/en/The-Manual/Developing-with-CakePHP/Views.html#media-views
I'm currently working with cakephp and I am generating a word document. My problem is how can I put the generated document on my web root and not as a download.
I am guessing you are using an action to generate a document, which gets output to the browser.
You should either use output buffering to "catch" the output and then write it to a file, or write the document data to a string, and write that string to a file on the server.
EDIT:
PHPWord has a SAVE method. In your action, you can save the document to a certain location, but output something else, i.e. success notification. This way, your action only generates the file:
public function generateWordDocument(){
//... your word file creation...
$wordDocumentLocation = TMP . 'word_files/';
$objWriter = PHPWord_IOFactory::createWriter($PHPWord, 'Word2007');
$objWriter->save($wordDocumentLocation . 'helloWorld.docx');
$this->Session->setFlash('Document generated!');
$this->redirect(array('action'=>'index')); //or wherever you want
}
If you want to protect that file, you could save the file to a "secure" folder (this can either be a folder outside the "app/webroot" folder, or a folder protected with .htaccess deny all instruction) and than use another action, like "getWordDocument":
function getWordDocument($documentName){
$wordDocumentLocation = TMP . 'word_files/';
if (file_exists($wordDocumentLocation . $documentName)) { //this is not really the safest way of doing it
$fp = fopen($wordDocumentLocation . $documentName, 'rb');
header("Content-Type: application/vnd.openxmlformats-officedocument.wordprocessingml.document");
header("Content-Length: " . filesize($wordDocumentLocation . $documentName));
fpassthru($fp);
exit();
}
}
Please note, that this code is just for "grasping the concept" and is in no way safe or optimal.
i think you want to add file in webroot but it is not downloadable for public users ,
You have several ways :
- protect folders with .htaccess (Like Js folder)
- create new folder in app folder like webroot and put files in it
- use Dispatcher Filters in cakephp : http://book.cakephp.org/2.0/en/development/dispatch-filters.html
and ....
I am writing an action in a controller where in a certain case, I want to output raw image data directly, and want to set the header content-type appropriate. However I think the header is already being set earlier by CakePHP (I am setting render to be false).
Is there a way to get around this? Thanks!
As said before, CakePHP does not send headers when render is false. Beware though, that any code doing an 'echo' will send headers (except you are using output-buffering). This includes messages from PHP (warnings etc.).
Sending the file can be done in numerous ways, but there are two basic ways:
Send the file using plain PHP
function send_file_using_plain_php($filename) {
// Avoids hard to understand error-messages
if (!file_exists($filename)) {
throw RuntimeException("File $filename not found");
}
$fileinfo = new finfo(FILEINFO_MIME);
$mime_type = $fileinfo->file($filename);
// The function above also returns the charset, if you don't want that:
$mime_type = reset(explode(";", $mime_type));
// gets last element of an array
header("Content-Type: $mime_type");
header("Content-Length: ".filesize($filename));
readfile($filename);
}
Use X-Sendfile and have the Webserver serve the file
// This was only tested with nginx
function send_file_using_x_sendfile($filename) {
// Avoids hard to understand error-messages
if (!file_exists($filename)) {
throw RuntimeException("File $filename not found");
}
$fileinfo = new finfo(FILEINFO_MIME);
$mime_type = $fileinfo->file($filename);
// The function above also returns the charset, if you don't want that:
$mime_type = reset(explode(";", $mime_type));
// gets last element of an array
header("Content-Type: $mime_type");
// The slash makes it absolute (to the document root of your server)
// For apache and lighttp use:
header("X-Sendfile: /$filename");
// or for nginx: header("X-Accel-Redirect: /$filename");
}
The first function occupies one PHP-process / thread while the data is being send and supports no Range-Requests or other advanced HTTP-features. This should therefore only be used with small files, or on very small sites.
Using X-Sendfile you get all that, but you need to know which webserver is running and maybe even a change to the configuration is needed. Especially when using lighttp or nginx this really pays off performance-wise, because these webservers are extremly good at serving static files from disk.
Both functions support files not in the document-root of the webserver. In nginx there are so called "internal locations" (http://wiki.nginx.org/HttpCoreModule#internal). These can be used with the X-Accel-Redirect-Header. Even rate-throtteling is possible, have a look at http://wiki.nginx.org/XSendfile.
If you use apache, there is mod_xsendfile, which implements the feature needed by the second function.
It's not $this->render(false), it's $this->autoRender=false; The header is not sent in the controller action unless you echo something out.
If render is false, cake will not send a header.
You can rely on plain ol' php here.
PNG:
header('Content-Type: image/gif');
readfile('path/to/myimage.gif');
JPEG:
header('Content-Type: image/jpeg');
readfile('path/to/myimage.jpg');
PNG:
header('Content-Type: image/png');
readfile('path/to/myimage.png');