I am creating a web application in Codeigniter 4 in which users can purchase a PDF book. After payment, the user is redirected to a page where he/she can download PDF directly. The page doesn't have any UI. The PDF download is implemented using headers. The PDF download function is working perfectly on PC, but on mobile, the file is downloading as an HTML file.
eg : filename.pdf.html.
My function is as below
public function download()
{
$file_url = WRITEPATH . 'uploads/file.pdf';
header("Content-type:application/pdf");
header("Content-Disposition:attachment;filename=filename.pdf");
readfile($file_url);
}
I have searched and tried almost all the solutions. But still, the issue is not resolved in mobile.
Solved the issue.
Looks like Codeigniter needed exit() function after readfile()
Thanks to #vee who gave the tip.
Related
I have been stuck on this for hours. Maybe my mind is tired. I hope someone can assist me. I am developing a Laravel application which connects to an external application that creates and edits invoices. One of my routes is supposed to allow a user to download a PDF invoice from this external application. My controller resembles the code below:
public function download(Invoice $invoice)
{
// Creates an instance of the remote invoice
$remoteInvoiceFile = RemoteInvoiceSoftware::find($invoice->id);
return response()->streamDownload(function () use ($remoteInvoiceFile ) {
// This calls the remote server and the server responds with the PDF file contents
$file = $remoteInvoiceFile->download();
echo $file;
}, 'file.pdf');
}
I read about the streamDownoad function from the Laravel documentation and implemented it the same way it was displayed. But I am getting an error where I am able to download a PDF file, however, not only is the file less than 5KB (the original invoice file is about 60KB), I also get an error when I try to open it. Something about the file being corrupt or not parsed well.
When I echo $remoteInvoiceFile->download() without using the streamDownload I get something like this:
Please help me figure what's going on and how I can fix this. Thank you!!
I'm outputting a PDF via PHP with the following code. $file is an object that contains data pertaining to the file being displayed.
header('Content-type: application/pdf');
header('Content-disposition: inline; filename="'.$file->name.'"');
#readfile($file->ServerPath());
My issue is that when I go to download the file in Chrome it will occasionally try to save the page instead of the PDF.
For example, say the URL that is displaying the file is mywebsite.com/file?file_id=1234. Most of the time it will try to save the file correctly as "file_name.pdf". However, sometimes chrome will try to save the file as "file" with no extension. This seems to happen randomly.
If it makes any difference the page displaying the file is being opened in a new tab. The issue happens regardless of whether I redirect via PHP or Javascript.
I really need to resolve this issue, as these PDFs will be accessible by users.
Thanks in advance.
I'm using PHPMailer to send automatic email (obviously using PHP as programming language).
I would like to add a PDF attachment generated with TCPdf.
Unfortunately I cannot generate the PDF inside the php page where I'm using PHPMailer, and I cannot create a function that generate it.
I can only use a link to generate it, like this:
www.mypage.com/app-pdf/link_generate_pdf.php?IDToGenerate=131&PDFOutput=I
I was thinking that I can recall the page with the PDFOutput=S and "return" in some way the text of the PDF and add it as attachment.
Otherwise I can call the page with PDFOutput=F and save it to a temp folder and then attach it to the email.
The problem is that I don't know how to "call" a page as it were a function and return what the recalling page actually returns.
Do you have some suggestion?
Thank you
edit: I now understand the problem! The problem is that the URL is accessible only from autentication (login page). I thought that as I was logged in, the script was automatically capable of read the page. How can I solve this?
Use this to save the file on the server first and then attach
file_put_contents("Tmpfile.pdf", fopen("http://example.com/file.pdf", 'r'));
Attach as
$mail->AddAttachment('path_to_pdf/Tmpfile.pdf', $name = 'Name_of_pdf_file',
$encoding = 'base64', $type = 'application/pdf');
Hope this helps
Edit: Try this. works fine over here
file_put_contents("path_to_pdf/Tmpfile.pdf",
file_get_contents("http://example.com/file.pdf"));
I am having trouble with the download helper in ie..basically I built a site that dynamically creates pdf invoices and pdf proofs in both cases the force download works great in firefox, chrome and opera. In IE it fails everytime and I get the following error:
Unable to download $filename from mysite.com
Unable to open this Internet site. The requested site is either unavailable or cannot be found. Please try again later.
To begin the force_download I have a anchor target _blank with a url that directs to the following controller:
function view_uploaded_file($order = 0, $name = NULL){
$this->load->helper('directory');
$params['where'] = array('id' => id_clean($order));
$data['order'] = $this->MOrders->get($params);
if($data['order']->id < 1){
redirect('admin/orders');
}
$name = db_clean(urldecode($name));
$map = directory_map('./uploads/customer_order_uploads/'.$data['order']->user_id.'/'.$data['order']->id, 1);
if(is_array($map) && in_array($name, $map)){
$this->load->helper('download');
$data = file_get_contents('./uploads/customer_order_uploads/'.$data['order']->user_id.'/'.$data['order']->id.'/'.urldecode($name));
force_download($name, $data);
} else {
redirect('admin/orders');
}
}
Originally I thought maybe a problem with MY IE but I am able to download PDFs on other sites. I then thought that it could be a problem with codeigniters download helper but I see they already made special provisions for IE in the helper.
If you have any ideas please let me know. Thank you.
Frankly I am not sure why we bothered with a helper for downloads in code igniter.
It's not entirely hard to do in pure php:
This Wonderful Question/Answer outlines how to do it quite nicely.
The real thing to remember is the content-disposition: attachment part of the headers. It's what tells the browser that the file should be downloaded & saved vs. trying to show it in the browser.
All browsers handle things differently, maybe you have something in your IE install that's overriding the behaviour but if you follow the instructions in the linked article, you should get files downloaded correctly in all browsers.
Essentially there are 3 things we need to tell the browser:
Content Type
File Name
How to treat the incoming data
(Optional Fourth, if you have it) File Size (Content-Length)
Then you just dump that data right out to the output buffer.
Response
In response to your replies, it's probably a security feature to not automatically download something in a popup window, probably one of the new things IE introduced to combat their previous security holes.
Well I have found atleast a temporary fix for the problem. All my links for force downloads were target _blank..once I created standard non pop out links the file downloads worked in IE. There is probably some type of work around but I just also realized there is really no need for a pop up window for the download anyway..the download dialog box already serves that purpose.
I am using Yii Framework, TCPDF and jQuery to generate a pdf.
The pdf is generated by inputing in a form and submitting it using ajax.
The pdf is created but here is the problem when it returns to the client, it down not download.
here is the php code
$pdf->Output('Folder Label.pdf','D');
the jQuery on success function has
success: function(data) {
window.open(data);
}
Which i got from this site.
Can you please help
If the problem is that you are not getting the browser's download dialog for the PDF, then the solution is to do it this way:
First, redirect the browser (using window.location as the other answers say) to navigate to a special controller action in your application, e.g. with this url: http://your.application.com/download/pdf/filename.pdf.
Implement the action referenced in the URL like this:
public function actionPdf() {
header('Content-Type: application/pdf');
header('Content-Disposition: attachment; filename="filename.pdf";');
header('Content-Length: '.filesize('path/to/pdf'));
readfile('path/to/pdf');
Yii::app()->end();
}
This will cause the browser to download the file.
You need to save the PDF to somewhere on your server and then issue window.location = '/url/to/pdf-you-just-saved.pdf'; from your javascript. The users browser will then prompt them to download the PDF file.
in tcpdf , just pass this argument the Output method:
$pdf->Output('yourfilename.pdf', 'D');
that's all
Not quite, that will cause errors on some browsers, this is the correct way to set the window location.
window.location.assign( downloadUrlToPdf );
So
Send a request to make the pdf via Ajax to the server
Process and generate the pdf on the server
Return in the Ajax call the url to the file you just made
Use the above code fragment to open a download of said file