ease popularity plugin reuse

See #4477 for rationale

Use str_starts_with/str_ends_with

use $auth instanceof AuthPlugin instead of not null check

code style: operator spacing

Apply rector fixes to the rest of lib/plugin

declare visibility o new method (codestyle fix)

fixes for the popularity plugin

* initialize values to avoid warnings in PHP 8.1
* avoid iterating over a missing change log

Send Popularity data securely

deprecated trigger_event() in favor of a static method on Event

Rename HTTPClient namespace to HTTP

This should make namespace a bit more flexible in scope and allow us to
move more functionality there later.

Refactor HTTPClient into different files

fixed popularity plugin

The callback needs to be public

PSR-2 for popularity plugin

visibility declarations in plugins

Fixed broken links to php.net and redirecting pages to php.net

Merge pull request #1150 from gturri/autosubmit_plugin3

Plugins can send usage data

Plugins can send usage data

They just need to register to the PLUGIN_USAGE_DATA event, and then to add
either a simple string, or an array of key / value. For example:

function register(Doku_Ev

Plugins can send usage data

They just need to register to the PLUGIN_USAGE_DATA event, and then to add
either a simple string, or an array of key / value. For example:

function register(Doku_Event_Handler $controller) {
$controller->register_hook('PLUGIN_USAGE_DATA', 'AFTER', $this, 'usage_data');
}

function usage_data(&$event){
$event->data['my_plugin_name'] = 'my usage data';

//or: $event->data['my_plugin_name'] = array ('k1' => 'v1', 'k2' => 'v2');
}

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Changes for PHP 7 Compatibility
- replace PHP4 style class constructor function names (based on
class name) with php 5 __construct()
Also remove some '&' reference operators used with objects
And a

Changes for PHP 7 Compatibility
- replace PHP4 style class constructor function names (based on
class name) with php 5 __construct()
Also remove some '&' reference operators used with objects
And add some object type hints

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Remove error supression for file_exists()

In an older version of PHP a file_exists() call would issue a warning
when the file did not exist. This was fixed in later PHP releases. Since
we require PH

Remove error supression for file_exists()

In an older version of PHP a file_exists() call would issue a warning
when the file did not exist. This was fixed in later PHP releases. Since
we require PHP 5.3 now, there's no need to supress any error here
anymore. This might even give a minor performance boost.

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more PHPDocs, unused var, small bit code reformatting

add PHPDocs to popularity plugin helper

get version popularity plugin direct from plugin info

Fixed gathering of version of popularity plugin

Fix popularity data submission in the backend FS#2808

The POST data contained the raw data instead of an array with the data
that should be submitted like in the requests from the browser. The
serve

Fix popularity data submission in the backend FS#2808

The POST data contained the raw data instead of an array with the data
that should be submitted like in the requests from the browser. The
server backend has been fixed to be able to process both versions.

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some coding style improvements

- removed some dead/unused code
- fixed phpdoc
- added typing on methods