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Multiples IPN (Dynamically Setting the Notification URL)

Hi,

Please, may you add Multiple IPN support? (Dynamically Setting the Notification URL)

https://cms.paypal.com/us/cgi-bin/?&cmd=_render-content&content_ID=developer/e_howto_admin_IPNSetup#id091GJ202030

If you add this feature, we can use the same Paypal account on many sites.

Thank you

Fri, 21 Oct 2011 10:16:49

DavidM
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Hi Jose,

Sounds like a good idea, let me run this by the lead developer.

Thanks,

David

Aaron

11,038 pts: Hero points 20,390 pts: Rep. points LEVEL 30

Unfortunatley PayPal Express Checkout and Pro recurring payments do no support this. Sucks I know. The only way to get around this is to use a central IPN forwarder which redirects IPNs to the proper locations. Support for this is built into Pro Sites as we do this for our Incsub sites (WPMU DEV, BuddyDress, Edublogs, etc.).

Here are the relevant bits in the paypal gateway code:

/* This sets the default prefix to the paypal custom field,

* in case you use the same account for multiple IPN requiring scripts,

* and want to setup your own forwarding script somewhere to pass IPNs to

* the proper location. If that is the case you will also need to define

* PSTS_IPN_PASSWORD and post "inc_pass" along with the IPN string.

*/

if ( !defined('PSTS_PYPL_PREFIX') )

define('PSTS_PYPL_PREFIX', 'psts');

And

} else if ( defined('PSTS_IPN_PASSWORD') && $_POST['inc_pass'] != PSTS_IPN_PASSWORD ) {



header("HTTP/1.1 401 Authorization Required");

die('Error: Missing a valid IPN forwarding password. Identification is not possible.');



} else {



//if not using an IPN forwarder check the request

if ( !defined('PSTS_IPN_PASSWORD') ) {

So basically define PSTS_IPN_PASSWORD and PSTS_PYPL_PREFIX in the wp-config.php file, and make sure those match your IPN forwarder. I’m attaching an example IPN forwarder here:

Jose Conti
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Ok, thanks a lot :slight_smile:
puccino
- The Crimson Coder
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Can someone explain how ipn forwarder works? How to configure it, what lines to changes, where to upload it, noob friendly?

I tried it but i can’t make it work…
Aaron
- CTO
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Well put the forwarder somewhere web accessible. The URL to that is what you enter into your paypal account. Also make sure there’s a /logs/ directory there and that it’s writable.

Configure a password in the header of it, as well as your sites and the prefix to use for each.

On each pro sites install, define PSTS_IPN_PASSWORD and PSTS_PYPL_PREFIX in the wp-config.php file, and make sure those match your IPN forwarder settings.
puccino
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Thank you aaron, i will try this. :slight_smile:
jcnjr
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We need to get IPN working for multiple domains ASAP too, and could use a bit more direction here. Does thorough documentation for this exist anywhere?

Configure a password in the header of it, as well as your sites and the prefix to use for each.

“It” being what, the forwarder file? By “in the header” do you mean the configuration section defining INC_PASS?

I also notice the forwarder posted above is a plugin? Should it reside in the Plugins folder? Aaron only says put it “somewhere web accessible”.

On each pro sites install, define PSTS_IPN_PASSWORD and PSTS_PYPL_PREFIX in the wp-config.php file

What exact code needs to be added to wp_config and where?

I’m attaching an example IPN forwarder

Aside from defining the “INC_PASS” password, are edits required other than configuring the following array? Please see my related questions that follow.
```
array('prefix' => 'app1',

'domain' => 'mysite.com',

'path'   => '/ipn-handler.php',

'live'   => true),
```
Can we include any number of apps without making changes elsewhere? (i.e.; app1, app2, app3, app4) Only two are listed in the array.

The path points to ipn-handler.php, not ipn-forwarder.php. Where does such a file exist? Is this the path generated after installing Pro Sites? (i.e.; /wp-admin/admin-ajax.php?action=psts_pypl_ipn) If Membership and Pro Sites are both installed, I presume they would both need an app configured in the forwarder.

Thanks for the help. Looking forward to getting this figured out soon.
Aaron
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So in each pro sites WP install, add these to the wp-config (w/customized values of course):
```
define('PSTS_IPN_PASSWORD', 'mypassword');

define('PSTS_PYPL_PREFIX', 'site1');
```
The pass is shared between all installs, the prefix should be short. It’s just what the forwarder looks for to know what url to send the IPN to.

Then put your forwarder somewhere, say at http://mysite.com/ipns/ipn-forwarder.php. Note this is not a plugin, just a standalone php script. It’s not even only for pro sites, could be used with any program you have that needs an IPNs forwarded. Edit the top of ipn-forwarder.php. You need to change the INC_PASS to “mypassword” and configure any pro sites installs there in the array. You can add 100 if you want, just add more to the array. The ones there are just an example. So for example to configure the first site:
```
array('prefix' => 'site1',

'domain' => 'mysite.com',

'path'   => '/wp-admin/admin-ajax.php?action=psts_pypl_ipn',

'live'   => true),
```
Then maybe another site:
```
array('prefix' => 'site2',

'domain' => 'myothersite.com',

'path'   => '/wp-admin/admin-ajax.php?action=psts_pypl_ipn',

'live'   => true),
```
I hope that’s clear enough?
jcnjr
- HummingBird
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Clear as mud! We’ll give it a shot. Thanks for the clarification and prompt reply.

I only made the plugin comment since the “Plugin Name: IPN Forwarder” at the top of file was a bit misleading.
jcnjr
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OK, thanks. I have followed all the directions exactly, turned notifications back on, and am waiting to see if the forwarder is working. Just a couple more questions:

1. I presumed an app/site must be added to the array for the domain where the forwarder is installed, if that domain is to run Pro Sites, membership, etc. Correct?

2. Does the Pro Sites and/or Membership plugin have to be activated on a given site for the forwarder to work at that domain? We have not yet installed either plugin at one of the my sites in the forwarder array.

3. I guess I just don’t understand how the IPN url works. The psts_pypl_ipn action is nowhere to be found in admin-ajax.php, but if I load the url in a browser, I do get a blank page with a single “0” at top left.

Thanks again for your help!
Aaron
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1. Yes

2. No, it’s a completely independent script. Just requires php 5.

3. Don’t worry about it. If you really care: http://codex.wordpress.org/AJAX_in_Plugins
jcnjr
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Awesome. Thanks for the quick reply.
jcnjr
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OK, sorry to bump this topic but I’m not getting any answers over hereUntitled Link and need to confirm IPNs are working so I can complete one new project with Membership and move on with upgrading Supporter on various others.

You’ve been a big help Aaron, thanks again for your time.
NetFlint
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I’m looking for a little clarity on the PSTS_IPN_PASSWORD and inc_pass.

Is it correct that this password is just a password that I make up to make sure that the ipn-forwarder.php is the one I configured to talk to my prosites installation and vice versa? It’s not supposed to be my API password or anything like that right?

Thanks.
jcnjr
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this password is just a password that I make up to make sure that the ipn-forwarder.php is the one I configured to talk to my prosites installation

Correct. Just make sure the password matches in the forwarder and wp-config files for all sites where pro sites is installed.

Looking forward to hearing if your IPNs get logged by the forwarder.
NetFlint
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Hi JCNJR,

When I use the IPN Simulator tool in the sandbox, ipn-forwarder.php writes to the log file in the log directory I created. (At least it did after I got the permissions set up correctly on that directory.) It does not write to that log file when I am playing with sandbox accounts. Is it supposed to?

I was able to use sandbox accounts to create and cancel subscriptions and those messages seem to show up in the Pro Sites Management dashboard account history section as well as actually reflecting in the account durations of the sites I created. I assume that means PayPal and prosites are talking to each other.

I do get this message in Account History when using the sandbox accounts:

“User modifying subscription via PayPal Express: PayPal returned an error: The token is invalid”

It is unclear from your other thread whether this is expected or not when using sandbox accounts.

One other point for anyone else trying this, In the sample ipn-forwarder.php file Aaron provided above, there is a comma missing at the end of the last line of the second sample app array. I was getting some error messages until I figure that out.

Cheers!
jcnjr
- HummingBird
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When I use the IPN Simulator tool in the sandbox, ipn-forwarder.php writes to the log file… It does not write to that log file when I am playing with sandbox accounts. Is it supposed to?

This is the exact same issue I reported, that has me concerned about going live since it indicates IPNs are not being sent for actual transactions. I haven’t yet been able to get a response as to why, or like you ask, whether Sandbox transactions get logged.

My next step is to test live transactions with two real PayPal accounts on our dev install. Guess that’s the only way to find out for sure if the forwarder is working.

I also asked about the invalid token error here, but haven’t received any feedback about that.
Aaron
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Sandbox IPNs should be getting logged in the log files, are you sure the IPN url was set in your sandbox account?

Note i’ll be implementing this myself this week for edublogs, so we’ll see how I go :wink:
NetFlint
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Thanks Aaron.

I don’t think I had an opportunity to configure IPN for my sandbox account and I don’t see anyplace to set it. Perhaps that’s because I chose a quick “preconfigured” sandbox account. I guess, I will go through the process of creating a manual sandbox account and see if that gives me the appropriate options.
NetFlint
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Okay. I figured out how to configure IPN on my sandbox account. (After setting up the sandbox accounts at developer.paypal.com, I had to log in with my test business account at sandbox.paypal.com and then go to My Account > Profile > More Options in the third column under Selling Preferences select Instant Payment Notification Preferences. Then I entered the URL for my ipn-forwarder.php

Now when I use the sand box buyer account to upgrade to a prosite, I am getting messages in my IPN logs. However, the messages aren’t good. Have you seen this error before:

[2011-12-19 22:30:09] Could not contact neighborlymedia.com/wp-admin/admin-ajax.php?action=psts_pypl_ipn to send the IPN: HTTP/1.1 302 Moved Temporarily (this is followed by the transaction details.)

If I enter neighborlymedia.com/wp-admin/admin-ajax.php?action=psts_pypl_ipn directly in the browser I get:

Error: Missing POST variables. Identification is not possible.

Any insight into where I should check next?

Thank you.
jcnjr
- HummingBird
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Hmmm… I’m looking forward to an answer about that too.
ilokano
- Flash Drive
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I’m having the same problem:

[2011-12-22 18:19:14] Could not contact pinoyfitnesscoach.com/wp-admin/admin-ajax.php?action=psts_pypl_ipn to send the IPN: HTTP/1.1 302 Moved Temporarily

… any chance this problem has been fixed? Thanks!
Aaron
- CTO
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Ok guys, I ran into it too. Turns out there is a nasty bug in the IPN handler that somehow no one caught on too. Testing my fix now, look for Pro Sites 3.0.5 this afternoon.
jcnjr
- HummingBird
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Awesome. Sounds like a great Christmas present!
nphaskins
- Flash Drive
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YES!!! Freaking YESS! I’ve been watching this thread because I have an estore that uses IPN forwarding and the same Paypal account will be used for Pro Sites as well.

Are the above instructions still accurate then?
NetFlint
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Thanks Aaron and Happy Holidays!
Aaron
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Ok, finally fixed. Weird stuff going on there.

Make sure you update to Pro Sites 3.0.5, and the latest attached version of the IPN forwarder:
nphaskins
- Flash Drive
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So in summary, i would change the IPN url in Paypal to the location of this script. Then, if I have 2 places that use the IPN function, I would set them both as an array in the script?
Aaron
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Kinda. Read through the instructions above, they are quite detailed. Note that the software you are forwarding to needs to be coded to work with the forwarder. If it’s not pro sites then you will need to customize that.
nphaskins
- Flash Drive
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Hey Aaron,

I’ve read through your post quite a few times, but I don’t have multiple pro site installs. I have one installation of Pro Sites, and an e-store built on WordPress that’s setup with the IPN from Paypal.

However, Pro Sites needs the IPN as well, which is why i’m asking a question about the forwarder that I need to make things work properly.

Do I place this in the other installation of WP, the one running the estore (with changed values of course)?

define(‘PSTS_IPN_PASSWORD’, ‘mypassword’:wink:;

define(‘PSTS_PYPL_PREFIX’, ‘site1’:wink:;

Nick
ilokano
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Great that it’s been fixed. However, I have tried installing Pro Sites on two different domains and checked the PayPal payment (real payment using a friends’ PayPal acct) on both sites with IPN turned off and both sites seem to work fine. The user accounts are upgraded to Pro with all Pro features activated and I am able to receive payment even without IPN turned on.

I also tried unsubscribing via the Pro Site unsubscribe button, and that seems to work fine too.

So forgive me if this is a stupid question but what is the IPN for? I would like to know before I try to install the IPN forwarder again. Also, I am using PayPal for another invoicing tool so if this is going to present a problem with non-Pro Site sites, then I would rather leave things as they are now.
nphaskins
- Flash Drive
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Wow for real? Can someone else confirm this? That would actually be really great to hear since I wouldn’t have to fiddle with this. It’s on my “come back to” list. lol
Aaron
- CTO
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You will be sorry when there next scheduled payment comes through. Or if they cancel via PayPal, or give you a chargeback.

IPNs are very important! I wish you didn’t have to set it, but paypals subscription API has that fatal flaw…
nphaskins
- Flash Drive
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Well that settles that then. Thanks for your input Aaron. I’d definitely want it setup right from the start.

Hey Aaron, I had a question above. Those two lines, am I correct in placing those in the other WordPress install in wp-config? I’ve read through your instructions and they do seem pretty straight forward but wanted to make sure, as I’m not dealing with 2 Pro Sites installs.

Thanks for your contributions man! And Merry Christmas Eve! I thought I was the only one crazy enough to be working today. :wink:

Nick
John
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Can this be a plugin so I can keep track of the updates?
NetFlint
- WPMU DEV Initiate
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I’m not sure why I’m doing this on Christmas day, but I wanted to let you know that the new IPN Forwarder is working for me now.

[2011-12-25 17:11:17] Successfuly sent to neighborlymedia.com/wp-admin/admin-ajax.php?action=psts_pypl_ipn:

Thank you for your efforts.

Merry Christmas.
jcnjr
- HummingBird
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Thanks for the Christmas present Aaron. Everything appears to be functioning properly via Sandbox now. Feeling much more confident about updating our live sites, hopefully there will be no need to report back!
Aaron
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Cool guys, sorry for the trouble!
Jason
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Guys, this is exactly what I needed.

But is there an easy 1,2,3 step to follow that consolidate what was discussed here? Maybe one of the members who got it to work for subscription based sites may be able to do this.

It seems str forward but the back and forth of any good discussion may seem to be confusing to a newbie like myself.

Thanks in advanced.
John
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@infotechd, thats a great idea! Either as a blog post or a stickie
Jason
- The Bug Hunter
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agreed :wink:
Jason
- The Bug Hunter
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So I gave it a try

1. I downloaded the ipn forwarded and uploaded it at mysite.com/ipn/ipn-forwarder.php and updated the following with my site information (4 arrays for 4 networks)

define('INC_PASS', 'mypassword');
```
array('prefix' => 'site1',

'domain' => 'mysite1.com',

'path'   => '/wp-admin/admin-ajax.php?action=psts_pypl_ipn',

'live'   => true),
```
```
array('prefix' => 'site2',

'domain' => 'mysite2.com',

'path'   => '/wp-admin/admin-ajax.php?action=psts_pypl_ipn',

'live'   => true),
```
etc

2. I updated the wpconfig file for each of the four networks like below with my site info
```
define('PSTS_IPN_PASSWORD', 'mypassword');

define('PSTS_PYPL_PREFIX', 'site1');
```
```
define('PSTS_IPN_PASSWORD', 'mypassword');

define('PSTS_PYPL_PREFIX', 'site2');
```
`

etc

3. I then added the IPN forwarder URL to my Paypal profile

mysite.com/ipn/ipn-forwarder.php

End of steps. Was this set up correctly? Any steps missed?

When I go to the IPN URL on my site I get the following error:

Parse error: syntax error, unexpected T_ARRAY, expecting ‘:wink:’ in /home/infotech/public_html/ipn/ipn-forwarder.php on line 38

Is this normal or is the page suppose to be blank?
jcnjr
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You’re not going to see anything when visiting the forward url as it does all its work behind the scene, and only works properly when it receives the proper ipn parameters.

As for the unexpected T_ARRAY, Aaron or another developer would have to address that. Normally you would get an error more like, “Error: Missing POST variables. Identification is not possible.” because no variables get sent when loading the forwarder in your browser.
Aaron
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It sounds like you messed up your sites array. Can you paste the whole thing here?

Jason

The Bug Hunter

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Thanks so much for your quick reply! The entire array set is attached. Thank you for any help you can offer!

// An array of prefix to search for, domain and path to post to, and whether we're using



sandbox or not for applications

$apps = array(

/* App 1 */

array('prefix' => 'magi',

'domain' => 'maginable.com',

'path'   => '/wp-admin/admin-ajax.php?action=psts_pypl_ipn',

'live'   => true),



/* App2 */

array('prefix' => 'sdat',

'domain' => 'sdatt.org',

'path'   => '/wp-admin/admin-ajax.php?action=psts_pypl_ipn',

'live'   => true)



/* App2 */

array('prefix' => 'huce',

'domain' => 'huceacs.com',

'path'   => '/wp-admin/admin-ajax.php?action=psts_pypl_ipn',

'live'   => true)



/* App2 */

array('prefix' => 'cari',

'domain' => 'caribbeanthings.com',

'path'   => '/wp-admin/admin-ajax.php?action=psts_pypl_ipn',

'live'   => true)

);

Aaron
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Forgot to paste?
Jason
- The Bug Hunter
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Sorry about that…I updated the post
Aaron
- CTO
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Ok, you’re missing comas after the 2nd and 3rd arrays.
Jason
- The Bug Hunter
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Thanks Aaron and Jcnjr! I am now getting the ‘Error: Missing POST variables. Identification is not possible.’ message, which is suppose to be normal, correct?
jcnjr
- HummingBird
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I believe that is perfectly normal expected behavior for viewing the page in your browser. You can send IPNs from the PayPal Sandbox to confirm all is well, but this will require changing your settings for testing instead of live mode.
Aaron
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Yes, that would be normal.
Jason
- The Bug Hunter
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@jcnjr I always wondered about this sandbox mode. Is it suppose to simulate the hold process? in the pass, once i click on the pay option it does not do anything….

thoughts?
jcnjr
- HummingBird
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I was afraid of opening that can of worms… There are many steps required to test PayPal functions in Sandbox mode. If you do not already have a developer account set up, I might suggest you keep the fowarder in live mode and test IPNs using a real transaction. Otherwise, follow the links on the Pro Sites plugin admin page to learn about using Sandbox.

More info available at https://developer.paypal.com/
Jason
- The Bug Hunter
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Hello Guys,

So I believe the developer once said that we can use this for even other transactions outside of prosites and WPMU setups.

I have a billing software setup (WHMCS) and they are telling me the following:

(You must enable IPN inside your PayPal account and set the URL to http://www.mysite.com/billing)

However, I already have the set IPN forwarder url entered in paypal.

http://mysite.com/ipn/ipn-forwarder.php

I know I edited the ipn-forwarder.php and the wp-config files for the WPMU sites but for this system, how do I get it to work with the same ipn fwd url.

Any suggestions?
Aaron
- CTO
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As it stands you would have to mod the WHMCS code to add a prefix the custom paypal field. You could probably fairly easily edit it though to forward a copy of every IPN notice to WHMCS though. Not something we can do for you though.
becky
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Hi, just want to check if this is working with the latest version of pro-sites.

I keep getting this when testing in sandbox

IPN delivery failed. HTTP error code 401: Unauthorized
jcnjr
- HummingBird
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@becky We have the IPN forward functioning with current Pro Sites running on multiple domains. Aaron may be able to address the specific error code, but using Sandbox can be tricky. Be sure to use all PayPal settings from the Sandbox account, set the IPN URL in the sandbox, and set the site to test mode both via the Pro Sites settings and in the array. Hoe this helps…
becky
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Hi jcnjr,

I managed to get it to work finally. Thanks.
Aphrodite
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sorry a clarification about path.

in the script we have

‘path’ => ‘/ipn-handler.php’,

here we are said to set ‘path’ => ‘/wp-admin/admin-ajax.php?action=psts_pypl_ipn’,

And in that case, where the H…. the script must be uploaded ?

And finally which ipn url must i setup in paypal ?

i am a little lost.

Which one should i setup ?

thanks !

And big thanks by the way for that solution !
Aaron
- CTO
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The path for pro sites will always be ‘path’ => ‘/wp-admin/admin-ajax.php?action=psts_pypl_ipn’

In paypal IPN you need to set the url for your IPN forwarder script, wherever you put it.
jcnjr
- HummingBird
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@Aphrodite FYI: i was lost too, but now have the forwarder working as follows…

Upload the ipn-forwarder.php script to a new /ipn folder at the root of yourdomain.com. Be sure to create a /logs folder in that same directory (i.e.: /ipn/logs).

Point your PayPal IPN URL to yourdomain.com/ipn/ipn-forwarder.php

Update the forwarder script with your-password:

define('INC_PASS', 'your-password');

And modify the array for your sites, i.e.:
```
/* Site 1 DomainX */

array('prefix' => 'site1',

'domain' => 'domainx.com',

'path'   => '/wp-admin/admin-ajax.php?action=psts_pypl_ipn',

'live'   => true),



/* Site 2 DomainY */

array('prefix' => 'site2',

'domain' => 'domainy.com',

'path'   => '/wp-admin/admin-ajax.php?action=psts_pypl_ipn',

'live'   => true),
```
Update wp-config for each domain with:
```
/* For IPN Forwarding */

define('PSTS_IPN_PASSWORD', 'your-password');

define('PSTS_PYPL_PREFIX', 'site-prefix-from-ipn-app-array');
```
Hope this helps!

My question for Aaron is, does WPMU Dev plan to make this a plugin? I would like to write about this solution and offer the script for use, but I’d gladly wait and point people to the plugin here for download via an affiliate link.
Aphrodite
- The Reaper
- 648 pts: Hero points 2,416 pts: Rep. points LEVEL 13
Point your PayPal IPN URL to yourdomain.com/ipn/ipn-forwarder.php

I assume I must do that with the main site, the one registered in paypal ?

Thanks that was veryy clear, but the path mentioned in the script confused me :slight_smile:
jcnjr
- HummingBird
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I assume I must do that with the main site, the one registered in paypal ?

Where you put the forwarder has nothing to do with any sites in the array. But yes, mine does reside at the same domain as my main site. The IPN URL you enter in your PayPal notifications settings just has to match wherever you put the forwarder.

the path mentioned in the script confused me

I believe “/ipn-handler.php” is intended as place-holder since the handler may be different for some users. It confused me at first too but Aaron clarified that above.
Aphrodite
- The Reaper
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ok

perfectly clear now…

Lets play around :wink:
jcnjr
- HummingBird
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Oui.

Thanks for the rep points! I spend most my time playing around with these… http://agreda.com/sites
shineadmin
- New Recruit
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so this is why my websites are quiet !
VirtualCom
- Flash Drive
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Hi Aaron

Could you please attach the IPN forwarder again. For some reason I don’t see the download link

Thanks
Aaron
- CTO
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It’s right here: https://premium.wpmudev.org/forums/topic/multiples-ipn-dynamically-setting-the-notification-url#post-165002
Jason
- The Bug Hunter
- 90 pts: Hero points 789 pts: Rep. points LEVEL 7
As far as multiple websites including whmcs,some of you may find this helpful or help answer my questions

WHMCS does send the notify_url with each invoice payment. We used to advise everyone to leave the IPN URL in their PayPal profile blank, but it’s no longer allowed by PayPal so we simply ask to enter the URL of your WHMCS install instead.

You can enter whatever you want there, it won’t have an impact on WHMCS.

http://forum.whmcs.com/showthread.php?31913-PayPal-IPN-Notification-URL

Am i not sure if i can assume that it would work without modifying the code or setting above. I am not sure
applemarketing
- Site Builder, Child of Zeus
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I’m wondering, will the IPN forwarder work with Pro Sites & Gravity Forms PayPal Add-on? I’m working on a project where we will take a setup fee, create the user / blog with Gravity Forms and then the user will “upgrade” with Pro Sites to enable features.
Aaron
- CTO
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As long as gravity forms doesn’t require you to change the default IPN url in your paypal account.
applemarketing
- Site Builder, Child of Zeus
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gravity forms uses this URL: /?page=gf_paypal_ipn – so I wouldn’t be able to use it? Currently I have the url set in paypal to /wp-admin/admin-ajax.php?action=psts_pypl_ipn
Jason
- The Incredible Code Injector
- 354 pts: Hero points 402 pts: Rep. points LEVEL 5
With an IPN redirection, you should be able to just add it in the list of ipn url’s in your redirection script, including the one from gravity forms.
Jamin
- Site Builder, Child of Zeus
- 109 pts: Hero points 144 pts: Rep. points LEVEL 4
I am interested in this.

I have a slightly different situation though.

I have 1 WP Multisite install which is running the plugin “Network of Networks”.

Plugin Here: http://wordpress.org/extend/plugins/networks-for-wordpress/

I only have 1 wp-config.php but it is running multiple sub domain networks.

How do I define the subdomain IPN address?

These are the 4 IPN address I wish to forward.

http://freemusic.customtabs.co.nz/wp-admin/admin-ajax.php?action=psts_pypl_ipn

http://competitions.customtabs.co.nz/wp-admin/admin-ajax.php?action=psts_pypl_ipn

http://apps.customtabs.co.nz/wp-admin/admin-ajax.php?action=psts_pypl_ipn

http://hosting.customtabs.co.nz/wp-admin/admin-ajax.php?action=psts_pypl_ipn

All of these are on the same WP install.

EDIT:

I am thinking I would have to make a plugin file and just run the code
```
$network = str_replace('/','',str_replace('http://','',network_home_url()));

if($network = 'hosting.customtabs.co.nz'){

define('PSTS_PYPL_PREFIX', 'hosting');

} elseif($network = 'apps.customtabs.co.nz'){

define('PSTS_PYPL_PREFIX', 'apps');

} elseif($network = 'freemusic.customtabs.co.nz'){

define('PSTS_PYPL_PREFIX', 'freemusic');

} elseif($network = 'competitions.customtabs.co.nz'){

define('PSTS_PYPL_PREFIX', 'competitions');

}
```
Would something like that work?
Aaron
- CTO
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Actually, if it’s the same WP install then you can set it up normally. Pro sites is network agnostic (it only goes by blog_id), so you should only need to setup the prefix for one of the sites, and use that in the IPN url in paypal. It will catch IPNs from all networks and apply them to the proper blogs.
Jamin
- Site Builder, Child of Zeus
- 109 pts: Hero points 144 pts: Rep. points LEVEL 4
When you say

setup the prefix for one of the sites

What do you mean by one of the sites?

Do I just define

define('PSTS_PYPL_PREFIX', 'site1');

in the (only) wp-config.php file?
Aaron
- CTO
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Yes, that is correct.
lee_down
- Site Builder, Child of Zeus
- 97 pts: Hero points 240 pts: Rep. points LEVEL 4
I need help with the wp-config for this

I have multiple multisites installed for niche client sites.

The top-parent domain I’m okay with setting up the ipn forwarder and adjusting the wp-config, but I don’t know what to do about other domains hosted on the same network.

Example

SafetyLives.com is set up with the

/* App5 */

array(‘prefix’ => ‘app5’,

‘domain’ => ‘safetylives.com’,

‘path’ => ‘/wp-admin/admin-ajax.php?action=psts_pypl_ipn’,

‘live’ => false),

And the wp-config specifies

define(‘PSTS_IPN_PASSWORD’, ‘######’:wink:;

define(‘PSTS_PYPL_PREFIX’, ‘app5’:wink:;

Now I also have another site under safetylives.com, mapped to biomedwashcanada.com

I want that domain to also run paypal transactions and will have to set up an ipn forwarder for that, which I have – it is App6

Do I add

define(‘PSTS_PYPL_PREFIX’, ‘App6’:wink:;

Or is there some other approach I should be aware of?

Thanks
Aaron
- CTO
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Not sure your setup exactly, but you only need to setup the forwarder once per WP Multisite installation.

Now I also have another site under safetylives.com, mapped to biomedwashcanada.com

Sounds like it’s just a subsite on the main install.
lee_down
- Site Builder, Child of Zeus
- 97 pts: Hero points 240 pts: Rep. points LEVEL 4
Yes, it is a subsite

but how does the ipn handle the request from biomedwashcanada.com ?

I’m seting up the ipn forwarder and config files for safetylives.com

do I set it up for biomedwashcanada.com too?

And what does that look like if I have to do that?
Aaron
- CTO
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A subsite shares the same instance of pro sites, so not even applicable. Your IPN forwarder listens on the root multisite domain.
lee_down
- Site Builder, Child of Zeus
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I’m not running ProSites on that install
Aaron
- CTO
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Prosites runs network wide in multisite, so it affects every blog/site in your multisite install.
lee_down
- Site Builder, Child of Zeus
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I know I’m a little thick when it comes to this stuff, and I know it can annoying. But really, I need things spelled out in black and white, or I’m lost.

I am lost.

I want to put an ipn forwarder in the right place to handle multiple multisite installs so it can handle transactions from whatever is running – whether it is a prosite transaction on one site, or a directory listing on another domain.

and I want to be certain I have the correct wp-config settings for each affected installation and the subset of domains hosted with them.
Aaron
- CTO
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Sorry, you have me confused too. The IPN forwarder is only for Pro sites.

So whatever wordpress multisite install (whereever it is) that you have Pro sites installed on needs to have the IPN credentials in it’s wp-config.php

Then whereever you install the ipn forwarder, you will configure it with the ipn urls for all those sites.
lee_down
- Site Builder, Child of Zeus
- 97 pts: Hero points 240 pts: Rep. points LEVEL 4
So…. how do we process payments for the directory listings, or marketpress, etc., without using the IPN forwarder?

I’m rather confused by what I need to do to set things up properly.

I’ll have 3 instances of Prosites running, and hopefully a fourth in a few months.

Underneath all of this, will be different sites offering different products or services from within my tribes. I plan on having some of my own commerce running as well.

I want to ensure that I’ve set up the paypal payment items 100% accurate. My techie abilities are very gui based.
Aaron
- CTO
- 11,038 pts: Hero points 20,390 pts: Rep. points LEVEL 30
The ipn forwarder is only required for pro sites. It helps to overcome a limitation in the PayPals Express Checkout recurring payments API. None of our other products use this API.
JJS
- Design Lord, Child of Thor
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Not sure if I need to do this.

I have a site where the users will be able to choose if they want a store or not, it will be a sub domain at x.mysite.com. In the store they should be able to make their OWN subscriptions since like you said Pro Site is in every multisite sub domain.

Do I still need to do this? I added the IPN url to PayPal and that’s about it.
Aaron
- CTO
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This is for if you have multiple WP multisite+pro sites installations and want to use the same PayPal account for each.
JJS
- Design Lord, Child of Thor
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Does chained payments on sub domains sites count?
Aaron
- CTO
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This is for pro sites, not MarketPress.
Jason
- The Bug Hunter
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Is this still the case? Are there any improvements? We are switching paypal accounts and need to redo this process..
Jason
- The Bug Hunter
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Also, would stripe solve all these issues? example, I can use the same stripe account on multiple networks?
Aaron
- CTO
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Yes, this is still the case, and only if using the PayPal gateway. Stripe allows you to setup unlimted webhooks in their admin interface.
SooBahkDo
- Syntax Hero
- 237 pts: Hero points 1,110 pts: Rep. points LEVEL 8
Hello,

We are in need of a solution to allow multiple applications on one multisite network to use the same PayPal account and I am curious if anyone has experience with this IPN Redirect plugin?

http://wickedcoolplugins.com/the-plugins/ipn-redirect/

They have a video on the pitch page that is insightful and informative.

I have purchased it and will be testing and report back, but if anyone else has experience with it, your comments would be appreciated.

They automatically set you up as an affiliate as soon as your order is done.

For example this is the affiliate link they assigned us

http://wickedcoolplugins.com/dap/a/?a=12275

Perhaps WPMUDEV would consider packaging all this IPN code discussed in this thread into a nice neat plugin? hint hint

I’ll report back after some testing on a network with about 6 different applications that all need to use the same PayPal account.

Phil D
peter_griffyn1
- New Recruit
- 53 pts: Hero points 3 pts: Rep. points LEVEL 0
So basically define PSTS_IPN_PASSWORD and PSTS_PYPL_PREFIX in the wp-config.php file, and make sure those match your IPN forwarder. I’m attaching an example IPN forwarder here:

There is no link to the file.
jorgitoz
- Flash Drive
- 77 pts: Hero points 41 pts: Rep. points LEVEL 2
@SooBahkDo Any updates on using the IPN redirect Plugin??

Thanks!
SooBahkDo
- Syntax Hero
- 237 pts: Hero points 1,110 pts: Rep. points LEVEL 8
not yet jorgitoz
jcnjr
- HummingBird
- 347 pts: Hero points 1,735 pts: Rep. points LEVEL 10
@Aaron I apologize in advance for the length of this post. I just need to know if the following notice from PayPal will affect your IPN Forwarder script in any way. Or Pro Sites and Marketpress for that matter.

Will it? Thanks!

From PayPal:

In a bulletin dated October 18, 2011, we announced that we were going to expand the number of IP addresses for http://www.paypal.com to improve our site’s performance, scalability and availability. As part of this transition, we planned to discontinue support for HTTP 1.0 protocol starting October 7, 2013.

We have recently identified that this change may impact the ability of some of our merchants to perform IPN (Instant Payment Notification) post-back validation or PDT (Payment Data Transfer) posts to http://www.paypal.com and ipnpb.paypal.com. This happens when the IPN or PDT scripts use HTTP 1.0 protocol and do not include the “Host: http://www.paypal.com” or “Host: ipnpb.paypal.com” header in the HTTP request.

Additional Details

Starting October 7, 2013, we will require all incoming requests to have a “Host” header which complies with HTTP 1.1 Specifications. This header was not required under HTTP 1.0. IPN and PDT scripts using HTTP 1.0 may start failing with “HTTP/1.0 400 Bad Request” errors after October 7, 2013, which will result in IPN messages not being validated successfully, or PDT scripts not being able to retrieve transaction information.

Action Required before October 7, 2013

Merchants need to update their IPN and/or PDT scripts to use HTTP 1.1, and include the “Host” and “Connection: close” HTTP header in the IPN postback script.

Example with Host as http://www.paypal.com (please make necessary changes if you are using ipnpb.paypal.com):

ASP

//Set values for the request back

req.Method=”POST”;

req.Host=”‘www.paypal.com'”;

req.ContentType=”application/x-www-form-urlencoded”;

Perl

$req=HTTP::Request->new(‘POST’, ‘https://www.paypal.com/cgi-bin/webscr&#8217:wink:;

$req->content_type(‘application/x-www-form-urlencoded’:wink:;

$req->header(Host=> ‘www.paypal.com’:wink:;

$req->header(Connection=> ‘close’:wink:;

PHP

// post back to PayPal system to validate

$header=”POST /cgi-bin/webscr HTTP/1.1rn”;

$header .=”Content-Type: application/x-www-form-urlencodedrn”;

$header .=”Host: http://www.paypal.comrn”;

$header .=”Connection: closernrn”;

Java

HttpsURLConnection uc=(HttpsURLConnection) u.openConnection();

uc.setDoOutput(true);

uc.setRequestProperty(“Content-Type”,”application/x-www-form-urlencoded”:wink:;

uc.setRequestProperty(“Host”, “www.paypal.com”:wink:;

uc.setRequestProperty(“Connection”, “Close”:wink:;

The PayPal Sandbox has been configured to reject any HTTP requests without the “Host” header with HTTP 400 error. Merchants can use the Sandbox environment to certify the changes to their IPN and PDT scripts.

For more information on PDT and IPN, please refer to http://www.paypal.com/pdt and http://www.paypal.com/ipn. For additional information or questions about this change, please contact PayPal’s Merchant Technical Support team via https://www.paypal.com/mts.

Sincerely,

PayPal
Aaron
- CTO
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They said they were changing it Feb. 1st, and still worked after that. So maybe they delayed it furthur. If so then yes it will affect this script and it will need minor updates.
jcnjr
- HummingBird
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Thanks @Aaron … looking forward to some direction regarding what those updates may be, and happy to help test.
Jason
- The Incredible Code Injector
- 354 pts: Hero points 402 pts: Rep. points LEVEL 5
I need the IPN forwarder script. When/Where can I get it?
Aaron
- CTO
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Right in this thread: https://premium.wpmudev.org/forums/topic/multiples-ipn-dynamically-setting-the-notification-url#post-165002
Jason
- The Incredible Code Injector
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Thanks Aaron!
Aaron
- CTO
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Here is the latest version with update for Paypal IPN requireing HTTP1.1 soon.
jcnjr
- HummingBird
- 347 pts: Hero points 1,735 pts: Rep. points LEVEL 10
version with update for Paypal IPN requireing HTTP1.1

Thank you Aaron!

Do any changes need to be made to the legacy supporter-paypal.php gateway?
Aaron
- CTO
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I updated those last year, you do have to manually replace them though as they are outside the plugin package. It was in the changelog.
jcnjr
- HummingBird
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I updated those last year, you do have to manually replace them…

Great, I do that for every update that has changes to the file. Thanks for confirming!
Jason
- The Incredible Code Injector
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Oh thank you Aaron!
Danny
- The Incredible Code Injector
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FYI Jorgitoz

IPN Redirect does not work with WP Multisite according to the plugin,s owner, Veena Prashanth at wickedcoolplugins.
Aaron
- CTO
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Hey guys, PayPal has recently changed the format of their IPN verify responses, so you need to upgrade to this latest version!