Authorization fails silently

[samueltardieu]

Hi.

I just installed Mastodon Autopost on a Wordpress 4.9.8 server (https://rose.telecom-paristech.fr/2019) that we are configuring. This WP server, despite being accessible from the internet, must use a proxy to access the internet, and this proxy is configured properly (WP_PROXY_HOST/WP_PROXY_PORT) and works fine to retrieve for example Wordpress plugins or upgrade Wordpress automatically.

When I choose my instance https://mamot.fr (the account is https://mamot.fr/@rose) I get redirected to the authorization page on mamot.fr as expected, I press "Authorize" and get redirected to the Mastodon Autopost page on my Wordpress server.

However:

• No application is authorized on mamot.fr when I check.
• The Mastodon Autopost settings requests that I add a Mastodon account.

I also used with an account on mastodon.social to rule out any mamot.fr specificity, with the same results.

Any idea of what might have happened and how to fix it?

[simonfrey]

It could have something todo with the proxy. Sorry I never had that case.

Could you provide me with the manual how you did setup the proxy? (So maybe I can reproduce the bug on my testsystem)

[samueltardieu]

At the end of wp-config.php, I have:

define('WP_PROXY_HOST', 'host.name.of.my.proxy');
define('WP_PROXY_PORT', '3128');
define('WP_PROXY_BYPASS_HOSTS','localhost');

[simonfrey]

So with what url do you access your wordpress? Via the proxy url or the wordpress url?

[samueltardieu]

Via wordpress URL. My wordpress is reachable from outside (https://rose.telecom-paristech.fr/2019), but it cannot itself access outside resources without using the proxy.

[simonfrey]

All the research I did brought me to the conclusion, that the standard wp_remote_get/post() I use should work with proxy.

Are you sure that your provider allows outgoing connections trough the proxy?

[samueltardieu]

Yes. Not only did the plugin (as well as all updates to wordpress and plugins) get installed through the proxy, but a Twitter gateway plugin works just fine as well through the proxy. It is also my understanding that wp_remote_{get,post} uses the proxy. Unfortunately, I couldn't find a setting in the plugin to enable debugging and trace what currently happens.

[RosemaryOrchard]

I am having a related issue, I click Authorize, am sent to Mastodon.social where I confirm, and then I'm redirected to my homepage and nothing has happened. I have no proxy setup though.

[simonfrey]

@RosemaryOrchard On what mastodon version is your server on? With the last update I introduced the narrowed down scopes, that are only available from v2.4.3 on.

[RosemaryOrchard]

According to https://mastodon.social/about it's running v2.8.0rc1

[asgartech]

I'm having the same problem as @RosemaryOrchard with https://mastodon.sdf.org, which runs v2.7.4.

[arunsathiya]

Same issue as @RosemaryOrchard on mastodon.social. I am unsure of where I can check mastodon.social's Mastodon version.

[sabinich]

same issue on mstdn.su - v2.6.1

Fatal error: Uncaught Error: Call to a member function get() on null in /home/public_html/wp-includes/query.php:28 
WP_Hook->apply_filters('HTTP/1.1 302 Fo...', Array) #3 /home/public_html/wp-includes/functions.php(1240): apply_filters('status_header', 'HTTP/1.1 302 Fo...', 302, 'Found', 'HTTP/1.1') #4 /home/public_html/wp-includes/pluggable.php(1235): status_header(302) #5 /home/public_html/wp-content/plugins/autopost-to-mastodon/mastodon_autopost.php(83): wp_redirect('https://planetr...') #6 /home/public_html/wp-includes/class-wp-hook.php(286): autopostToMastodon->init('') #7 /home/public_html/wp-includes/class-wp-hook.p in /home/public_html/wp-includes/query.php on line 28

[simonfrey]

Would you folks please try again with version 3.2.8 ? I hope it is fixed now. On my wp it works with chaos.social

Thanks

[arunsathiya]

I am afraid it's not, for me. I am on 3.2.8 now, but I see this after authenticating with mastodon.social:

Warning: Cannot modify header information - headers already sent by (output started at /srv/users/usera1de559a/apps/usera1de559a/public/wp-content/plugins/autopost-to-mastodon/mastodon_autopost.php:49) in /srv/users/usera1de559a/apps/usera1de559a/public/wp-includes/pluggable.php on line 1251

Warning: Cannot modify header information - headers already sent by (output started at /srv/users/usera1de559a/apps/usera1de559a/public/wp-content/plugins/autopost-to-mastodon/mastodon_autopost.php:49) in /srv/users/usera1de559a/apps/usera1de559a/public/wp-includes/pluggable.php on line 1254
Authentification, please wait...

I waited a bit to see if the page redirects me to the intended view, but no, it does not.